Coating metallic material and coating material with metallic material and chemical surface treatment and diffusion treatment of metallic material and coating by vacuum evaporation, by sputtering, by ion implantation or by chemical vapour deposition, in general and inhibiting corrosion of metallic material or incrustation in general (C23)

C   Chemistry; metallurgy(315514)
C23            Coating metallic material; coating material with metallic material; chemical surface treatment; diffusion treatment of metallic material; coating by vacuum evaporation, by sputtering, by ion implantation or by chemical vapour deposition, in general; inhibiting corrosion of metallic material or incrustation in general(12971)
ethod for protecting internal reactor surfaces from saturation with working medium components during chemical-thermal treatment of parts // 2628309
FIELD: chemistry.SUBSTANCE: method for protecting the internal reactor surfaces from saturation with the working medium components during the chemical-thermal treatment of parts involves the formation of a protective coating on the inner reactor surfaces, chemically neutral to the working medium. Initially, during the formation of the protective coating, from 3 to 10 nominal coating cycles are carried out on the part to produce a coating on the internal reactor surfaces from the working agent used in the chemical-thermal treatment, after which an idle cycle of the reactor operation is carried out, in which an oxidizer is introduced into the reactor cavity to form an oxide layer on the surface of the produced coating. The idle cycle is repeated every 30-50 normal cycles of chemical-thermal treatment.EFFECT: improving the quality of the coating applied to the part by eliminating the transfer of working agent depositions from the internal reactor surfaces to the parts.1 cl

Treatment method for moving ferroalloy sheet and continuous production line for its implementation // 2628182
FIELD: metallurgy.SUBSTANCE: method includes a stage of immersing a moving sheet in a molten oxide bath having a viscosity between 0.3⋅10-3 Pa⋅s and 3⋅10-1 Pa⋅s, while the bath surface is in contact with non-oxidizing atmosphere, and the molten oxides are inert to iron. The residence time of the moving sheet in said bath is at least 1 s, and the residue of the oxides, remaining on the sheet surfaces at the outlet of the bath, are removed. A line for treatment of a ferroalloy sheet by this method is also proposed.EFFECT: improvement of adhesion of a metal or metal alloy coating to steel sheets containing a significant amount of readily oxidizable elements.14 cl, 3 dwg
ethod of protecting steel from corrosion in mineralised water-oil media containing hydrogen sulphide // 2627836
FIELD: chemistry.SUBSTANCE: method comprises adding 2-methyl-2-ethyl-5,7-di-(1-methylbut-2-EN-1-yl)indolin to the mineralised water-oil medium containing hydrogen sulphide at the concentration of 25-200 mg/l.EFFECT: increasing the degree of protection from corrosion.1 tbl, 3 ex
Complexing agents for metals as corrosion inhibitors // 2627832
FIELD: chemistry.SUBSTANCE: conversion composition is proposed for applying a substrate to a metal containing a complexing agent for metals in the amount of 0.005 g/1000 g of the composition to 3 g/1000 g of the composition capable of binding and/or removing copper and/or iron from the metal surface, a metal cation and an aqueous carrier. A coated product and a method of its production are also proposed.EFFECT: composition provides removal of copper or iron from treated metal surface, as well as subsequent production of conversion coating that increases corrosion resistance of the metal surface.16 cl, 1 tbl

Application of superflowing with application of powder flux and metal // 2627824
FIELD: metallurgy.SUBSTANCE: powder layer (14) disposed on the substrate (12) of the superalloy containing flux material and metal material is heated energy beam (16) for forming the cladding layer (10) and of a superalloy layer (18) of the slag. Give the molten bath to cool and solidify to form a slag repaired surface of the desired superalloy material. Material is fed in the form of a superalloy wire or strip into the molten bath. Filler material contains only a subset of the extrudate from the elements defining the desired superalloy material. Extruding the filler material in the form of wire or tape may be, for example, nickel, nickel-chromium alloy or nickel-chromium-cobalt.EFFECT: improvement of the application of technology.10 cl, 6 dwg

Aqueous slurry for the production of thermal and environmental barrier coatings and processes for making and applying the same // 2627823
FIELD: chemistry.SUBSTANCE: invention relates to an improved composition of a suspension which may be used to provide improved thermal barrier coating as well as the porous protective heat-barrier from exposure to ambient coating, a process for preparing mentioned aqueous slurry and method for applying this suspension to the substrate. The composition of the aqueous suspension for the production of a porous thermo-barrier environmental protection coating comprises a first powder of an oxide material with a thermal conductivity below 5 W/(m⋅K), consisting of coarse particles having an average particle size of 5 μm to 60 μm, at least a portion of which has a closed porosity and which are heat-resistant and impermeable to gas and liquid, a second powder of an oxide material with a thermal conductivity below 5 W/(m⋅K), consisting of fine particles having an average particle size of 0.1 μm to 5 μm, wherein the average particle size of the second powder is at least 5 times smaller than the average particle size of the first powder, the elementary boron particle in an amount of 0.2 Up to 2.0% by weight, an aqueous inorganic binder suspending at least a portion of mentioned elementary boron particles, coarse particles and fine particles in the aqueous solution, the large particles with closed porosity that are heat resistant provide the coating with a non-destructive closed porous structure.EFFECT: protective coating having thermal barrier properties and barrier properties against external conditions suitable for high temperature applications.25 cl, 9 dwg, 1 tbl

Unit of magnetron diffuser cathode // 2627820
FIELD: metallurgy.SUBSTANCE: unit contains a target 1 fixed in the walls of housing 4, a first electrostatic screen 7 installed on the outside of the walls of housing 4 and the base 5. From the side of inner surface 3 of target 1, a plate 10 is arranged, in shape identical to the shape of target 1 with thickness of 1 to 4 mm, and tightly pressed to its inner surface 3. Central magnet 11 is mounted in the center of base 5, and external magnets 12 are located on the base periphery 5. On the base 5, a heat transfer element 13 with an internal groove 15, in which a central magnet 11 is installed, is placed, and with external grooves 16, in which a cooling conduit 17 is installed. Cooling pipe 17 is made in form of rectangular frame with chamfered corners of tubes of rectangular cross section and contains pipes for supply and removal of coolant 18. Wherein, in the heat transfer element 13, holes 19 are formed into which pipes for supply and removal of coolant 18 are inserted. The cross section of the cooling pipeline 17 is selected from the condition of providing effective cooling with turbulent flow regime of coolant characterized by Reynolds number of at least 8000.EFFECT: increasing cooling efficiency and reliability of unit of magnetron diffuser cathode.3 cl, 4 dwg
Polishing etchant composition for chemical-mechanical polishing of cadmium-zinc telluride // 2627711
FIELD: chemistry.SUBSTANCE: composition includes sulfuric acid, hydrogen peroxide, water, ethylene glycol and glycerin, with the following ratio of components, volume fractions: sulfuric acid (98%) - 7, hydrogen peroxide (30%) - 1, water - 1, ethylene glycol - 3,5, glycerol - 3.5.EFFECT: invention provides polishing etching of cadmium-zinc telluride with the formation of a homogeneous surface with an average roughness of not more than 7 nm.3 dwg
ethod of chemical heat treatment of workpiece from alloyed steel // 2627551
FIELD: metallurgy.SUBSTANCE: method of chemical heat treatment of a workpiece from alloyed steel includes placement of the workpiece into the working chamber, supply into the chamber of the working saturating medium, heating of the workpiece to the temperature of chemical heat treatment and conditioning at this temperature until formation of necessary thickness of the diffusive layer. The diffusion layer is formed in the form of local sections with a total area of 60 to 90% of the surface area of the workpiece surface. Local sections are in the form of circles with a diameter from 0.3 mm to 4 mm, or in the form of ovals from 0.5 mm to4 mm and width from 0.3 mm to 2 mm, or as a combination of circles and ovals of the said sizes. Local areas in the form of circles and/or ovals are formed with a uniform distribution over the surface of the workpiece. Before the chemical-thermal treatment, the surface of the part is activated by ion-implantation treatment at an ion energy of 25 to 30 keV, the radiation dose from⋅ 1.6⋅1017 cm-2 up to 2⋅1017 cm-2⋅ , rate of irradiation dose set from 0.7⋅1015 c-1⋅ up to 1⋅1015 c-1⋅ and when using as implantable ions elements selected from C, N or a combination thereof.EFFECT: increased wear resistance of workpieces after chemical-thermal treatment.12 cl, 1 tbl, 1 ex
ethod of application of metal polymer coating // 2627543
FIELD: chemistry.SUBSTANCE: method of applying the metal-polymer coating to the metal substrate involves applying a metal layer and a polymer layer, before activating the metal substrate surface, the metal layer is permeable, the polymer layer is formed as a dry gas permeable layer, and then the gas- melting point by heating the metal coating layer.EFFECT: provides a coating thickness of 50-1000 mcm or more, which has high adhesion and resistance to various types of wear and has a minimum or zero porosity.8 cl, 2 dwg, 2 ex

Cylinder sleeve and method of its manufacture // 2627526
FIELD: engines and pumps.SUBSTANCE: method of manufacturing the cylinder liner includes thermal spraying on a rotating model having a cylindrical shape with dimensions corresponding to the dimensions of the cylinder liner, the first wear-resistant, corrosion-resistant layer containing: at least 67% iron, not more than 3% carbon, up to 20 % of chromium, and/or up to 10% of nickel, and thermal spraying onto the first inner layer of a second outer layer of aluminium or an Al-Si alloy or an Al-Mn aluminium alloy or an Al-Mg aluminium alloy. Each layer is sprayed with a thickness of 0.05 to 2.0 mm, and delete the model.EFFECT: ensuring the reliability and simplifying the applied coating technologies of manufacturing cylinder liners.8 cl, 1 dwg, 1 ex
Composition for dissoluting corrosive deposits // 2627377
FIELD: chemistry.SUBSTANCE: composition is proposed, containing, wt %: hydrochloric acid 20.0-35.0, hexamethylene tetramine 3.0-8.0, surfactant 0.5-4.0, isopropyl alcohol 5.0-10.0, oleic acid - 0.5-2.0, water diluent is the rest.EFFECT: composition provides an increased rate of dissoluting corrosive deposits and has reduced consumption when used to remove rust from hard surfaces.5 cl, 14 ex

ethod of sealing anode paints with collision of a sandwashing machine // 2627072
FIELD: technological processes.SUBSTANCE: direct two jets of abrasive material towards the part covered by the mentioned paint. The jets are oriented with convergence at the focusing point in front of the part.EFFECT: processing speed is increased.5 cl, 4 dwg

High-strength multi-phase steel and method for strip manufacture from this steel with minimum tensile strength at 580 mpa // 2627068
FIELD: metallurgy.SUBSTANCE: invention relates to the high-strength multi-phase steel with the minimum tensile strength 580 MPa, preferably with two-phase structure, to manufacture the cold-rolled or hot-rolled steel strip with thickness 0.50-4.00 mm with improved moulding properties, used, in particular, for automotive industry with the lightweight structures use. Steel consists of elements, wt %: C from 0.075 to ≤0.105, Si from 0.600 to ≤0.800, Mn from 1.000 to ≤2.250, Cr from 0.280 to ≤0.480, Al from 0.010 to ≤0.060, P ≤0.020, N ≤0.0100, S ≤0.0150, the rest - iron, due to the impurity melting. With the strips thickness up to 1 mm the content of Mn is preferably ≤1.500%, with the strips thickness from 1 mm up to 2 mm, the content of Mn is preferably ≤1.750%, and with the strips thickness ≥2 mm, the Mn content is preferably ≥1.500%.EFFECT: uniform mechanical and technological strips properties and its suitability for the hot-dip galvanizing.17 cl, 8 dwg, 4 ex

ethod and device for protection from corrosion cracking of welded steel structure // 2626705
FIELD: metallurgy.SUBSTANCE: method involves patching the near-surface cracks by step-by-step impact with pulse current in the zone of tensile residual welding stresses and compressing said zone with dynamic impacts. The device contains a movable portal, provided with movable clamps, compressing springs, two electromagnetic clamps, a capacitor point contact welding machine, two electrodes for one-sided capacitor contact welding, a multi-head caulking stiffener with an air cylinder and a bundle of needle wires fixed to the portal casing, with two springs, located at the top and bottom of the portal to dampen its vibration from the side of the reinforcing pneumatic hammer, and a control unit. In this case, each electrode is fixed in the electrode holder with the ability to move by means of the pneumatic cylinder and connected to the capacitor point contact welding machine. The pneumatic thrust and the pneumatic hammer of the multi-head caulking stiffener are made with the possibility of connecting to a source of compressed air.EFFECT: invention protects welded metal from corrosion cracking.2 cl, 1 tbl, 8 ex
Device of optical heating of the sample in magnetic reconciliation installations // 2626704
FIELD: physics.SUBSTANCE: installation comprises a vacuum chamber, a magnetron, a tripod and a device mounted thereon for optically heating the substrate and adjusting its temperature, which comprises an anode-substrate holder for placing the substrate, a holder with at least two lamps mounted on it with integrated reflectors, regulator of a current of an incandescence and temperature of a substrate. The holder is fixed to a stand, mentioned lamps are connected to the regulator of the incandescent current and the temperature of the substrate and are located on its rear side. The anode-substrate holder contains a grid of thin molybdenum filaments for placing the substrate face-to-face magnetron.EFFECT: device improvement.7 dwg, 1 tbl, 4 ex

ethod of estimating technical condition of insulating coating of underground pipeline // 2626609
FIELD: measuring equipment.SUBSTANCE: in controlled pipeline section bounded by the drain points of two adjacent active cathodic protection stations (CPS), the natural pipe-ground potential difference is determined, the bias of the pipeline potential is measured, the CPS current strengths required for such a potential bias are determined. Thereinafter, the transition resistance of the coating is calculated, by which the technical condition of the insulation coating is judged. The curent strength value in the controlled section, required for the potential bias, is defined as the sum of the values of the current strengths in the corresponding CPS arm, acting on this section. The current strengths in the corresponding CPS arm are determined from the polarizing current density values measured at two or more points of the pipeline section on each protection arm in the current operation modes of the CPS, while switching off adjacent CPSs for the measurement period.EFFECT: expanding the arsenal of remote methods of determining the technical condition of the insulating coating of an underground pipeline while maintaining the necessary accuracy and reliability.1 dwg, 1 tbl

ethod of arc-plasma cleaning of metal product surface and device for its implementation // 2626521
FIELD: metallurgy.SUBSTANCE: method involves generating a plasma jet from at least one plasmatron, which is manually or mechanically directed to the surface of the product in the cleaning zone and moved relative to the surface to be treated. The cleaning is performed by a plasma jet, which is scanned over the surface, by softening, melting, evaporation or sublimation of surface contamination from the surface to be cleaned. The positive potential from the power source of the plasmatron arc is connected to the part to be cleaned, forming an anode region of discharge, which is sent to the cleaning zone and scans the surface to be cleaned. During the cleaning process, the surface to be cleaned is prevented from melting by means of a temperature sensor of the cleaned surface, which is electrically connected to the magnetic system of the plasma jet and anode spot movement and the mechanical system of the plasmatron movement. As a result, the surface of pipelines is cleaned providing high cleanliness quality (at the molecular and atomic level), environmentally friendly, as there are no harmful emissions to the environment, no noise and electromagnetic radiation.EFFECT: method and device can work at any high and low ambient temperatures.7 cl, 1 dwg
Composition for chrom and vanadium treatment of carbon steel tool // 2626369
FIELD: metallurgy.SUBSTANCE: for the creation of wear-resistant diffusion carbide layers on tool surface made of carbon steels, the composition for the chrome and vanadium treatment of carbonaceous steels contains the following components, wt %: ferrovanadium 37-39, ferrochrome 11-13, ammonium chloride 4-5 and alumina is the rest.EFFECT: wear resistance of the diffusion layer is increased, the process of mixture preparation is intensified by eliminating the preliminary restoration of the saturating mixture.1 tbl, 5 dwg, 3 ex
ethod of surfacing monolyle of copper bulbs to metal contact surface of heat exchanger // 2626263
FIELD: heating system.SUBSTANCE: contact surface of the heat exchanger is pre-coated with a layer of high vacuum oil, the heat exchanger is placed in a sintering container, the container is filled with copper balls with a size of 100 to 500 mcm, the copper balls that have not adhered to the high-vacuum oiled surface are poured from the said container and poured into a sintering container With excess beads of alumina that are equal to or less than copper balls, load the container into a vacuum oven with a vacuum level of at least 10-5 Mm Mercury column and heated to a sintering temperature of 800 to 900°C. Heating is carried out with holding at the boiling point of a high-vacuum oil for complete removal of oil vapours. The monolayer is then sintered from the copper balls to the contact surface of the heat exchanger for 2 to 4 hours.EFFECT: monolayer of metal balls is welded to predetermined areas of the heat exchanger surface, regardless of their spatial orientation.1 ex
ethod of applying wear-resistant iron-nickel coating on precision parts from low-alloy steels // 2626126
FIELD: metallurgy.SUBSTANCE: method of applying a wear-resistant iron-nickel coating on precision parts of low-alloy steels, in which a nickel coating layer with a thickness of 9 to 11 mcm is first applied to the part surface by feeding nickel tetracarbonyl vapour to the part surface heated to the temperature of 225 to 235°C at a rate of 1 to 2 l/h at a residual pressure of 190 to 210 Pa for 5 to 10 min with thermal decomposition of the nickel tetracarbonyl vapour, followed by applying an iron-nickel coating layer by feeding a mixture of nickel tetracarbonyl vapour, iron pentacarbonyl and carbon monoxide in a volume ratio of 1:6(±0.5):15(±1) at a feed rate of the vapour mixture of 110 to 130 l/h to the part surface cooled to the temperature of 175 to 185°C for 25 to 35 minutes, with thermal decomposition of the nickel tetracarbonyl vapour and iron pentacarbonyl.EFFECT: providing a coating that is effective in achieving optimum adhesion strength, microhardness, roughness, which increases the wear resistance of parts, and increasing the life of the assembly unit containing this part.1 tbl, 3 ex

anufacturing methods of preliminary lacquered metal sheet with zn-al-mg coating and the corresponding metal sheet // 2625927
FIELD: metallurgy.SUBSTANCE: proposed versions of the metal sheet manufacturing method, comprising the following steps: providing the steel substrate (3), having two surfaces (5), each having the metal coating, obtained by immersing the substrate in the bath and cooling, and containing zinc, 0.1-20 wt % aluminium and 0.1-10 wt % magnesium; - magnesium oxide or magnesium hydroxide layers conversion, formed on the outer surfaces (15) of metal coatings (7), using the acid solution, optionally of the conversion solution with pH 1-2, and/or mechanical action; - colouring of the external surfaces (15) of metal coatings (7).EFFECT: metal sheets manufactured using the proposed method versions have improved corrosion resistance.23 cl, 3 dwg

Surface-modified magnetic material // 2625926
FIELD: metallurgy.SUBSTANCE: mentioned article contains the basis, containing the first part of the magnetic material, the transition layer, containing the second part of the magnetic material and the first part of the coating material. The transition layer is disposed on at least the part of the base, and the outer layer containing the second part of the coating material. The outer layer is located on at least the part of the transition layer. The electrical machine element develops the magnetic properties, that differ from the magnetic properties, developed by the basis, less than 10%, less than 5% or less than 1%.EFFECT: magnetic product, made with the opportunity to work in the corrosive media.20 cl, 2 dwg
ethod for reducing friction factor // 2625918
FIELD: chemistry.SUBSTANCE: method for preparing the composition-modifier for the metal friction pairs involves the preparation of a powder mixture of the dispersed particles of antigorite Mg6Si4O10(OH)8 and lizardite Mg3Si2O5(OH)4 and mixing of the said powder mixture in the oil. The said powder mixture is further added to the particles of chrysotile Mg6Si4O10(OH)8 and alpha-boron nitride in the following ratio, wt %: 2-10 antigorite, lizardite 2-20, 15-40, chrysotile and boron alpha-nitride 20-50. For liquid oils, the fractions of antigorite, lizardite and chrysotile 100-200 nm, the fraction 200-300 nm of boron alpha-nitride are used . For lubricating oils, the fractions of antigorite, lizardite and chrysotile 200-400 nm and the fraction 200-300 nm of boron alpha-nitride are used.EFFECT: increasing the period of the scheduled recovery operations, reducing the cost of the repair work and increasing the efficiency of the product by reducing the effects of abrasive, cavitation and abrasion-cavitation wear in the metal friction pairs.2 cl
ethod for improving highly loaded friction surfaces // 2625917
FIELD: chemistry.SUBSTANCE: method of preparing the composition-modifier to using for the treatment of highly loaded metal friction surfaces of the friction pairs operating at the temperatures up to 250°C, which comprises administering a powder mixture of dispersed particles into a grease oil, stirring it and feeding the powder mixture stirred in the grease oil into the item. Said powder mixture comprises antigorite Mg6Si4O10(OH)8, lizardite Mg3Si2O5(OH)4 and chrysotile Mg6Si4O10(OH)8, and silicone oil is used as a grease oil, which is first solidified with PTFE micropowder to the desired consistency, and then said mixture is introduced into it. Said mixture contains the following component ratio, wt %: antigorite 2-10, lizardite 2-20, chrysotile 10-30 and polytetrafluoroethylene 25-60. The particles of the PTFE micropowder have the size from 1 to 5 microns. The particles size of antigorite, lizardite and chrysotile ranges from 200 to 400 nm.EFFECT: duration of scheduled restoration works is increased, the costs of repair work are reduced, and the item work efficiency is increased due to reducing the friction coefficient, active counteraction to surface wear, increasing the critical load and welding load.13 cl
ethod for cleaning containers of liquid rockets from components of rocket fuel after starting // 2625866
FIELD: technological processes.SUBSTANCE: method involves flushing the filling line with water at a pressure equal to the volume of the main line, followed by flushing with an aqueous solution of potassium permanganate with a concentration of not less than 0.1% of the fuel lines, an aqueous solution of caustic soda with a concentration of at least 0.025% of the oxidizer lines, safety control of process drains and lines for subsequent utilization. Preliminarily local cooling of the filling line in the place of leakage is carried out down to the freezing point of the fuel component, sealing the filling line in the place of its leakage is done. Passability of the aqueous neutralizing solution along the entire length of the filling line is provided.EFFECT: ensuring industrial and environmental safety in the extraction, transportation and cleaning of containers for their utilization and disposal.1 cl

ethod of low-temperature ion nitriding steel products in magnetic field // 2625864
FIELD: metallurgy.SUBSTANCE: method of low-temperature ion nitriding of steel products in a magnetic field involves performing vacuum heating of a product in a nitrogen plasma of increased density that is created in the toroidal region of oscillating electrons moving along cycloidal closed trajectories formed in the crossed electric and magnetic fields. Before ion nitriding, an ultrafine-grained structure of the product material is formed by intensive plastic deformation by torsion, which ensures the process of diffusion saturation of the surface layer with nitrogen during nitriding.EFFECT: increasing contact durability and wear resistance due to the formation of ultrafine-grained structure of the material.2 dwg, 1 ex

ethod of application of protective coatings and device for its implementation // 2625698
FIELD: technological processes.SUBSTANCE: device comprises at least one pair of opposing vacuum-arc evaporators with a common electrically insulated anode for each pair and one pair of gas-discharge ion sources forming the annular processing zone of the products. Each evaporator is arranged to move along their axis of location. The electrically insulated holder of the articles to be processed is made in the form of a first rotation shaft arranged on the axis of the annular processing zone of the products and a second rotation shaft. The first rotation shaft is coaxially covered by the outer shaft, the second rotation shaft and the outer shaft are connected by a transfer mechanism of the rotation pulse from the first rotation shaft to the second rotation shaft. The second rotation shaft is movable along the radius of the annular treatment zone of the articles and around the first rotation shaft. The positive pole of the source of displacement with the electronic key is connected to the body of the vacuum chamber.EFFECT: providing the possibility of applying to products with a curved surface, including turbine blades, blink, blades and nozzle blocks of gas turbine engines, various dimensions, protective and protective hardening coatings from plasma with a high thickness uniformity with reduced energy consumption, increasing the productivity of the coating process and simplifying the design of the device.8 cl, 2 dwg, 1 ex

Underwater pipelines remote corrosion monitoring complex // 2625696
FIELD: radio engineering, communication.SUBSTANCE: complex contains the measurements unit, contact device, the program repeater, the operator automated working place (APM) and the erection site, where the following items are fixed: the power supply module, and the hydroacoustic antenna and the instrumental module, containing the query and data processing unit, the data storage unit, the hydroacoustic communication modem and the moisture sensor. The contact device, the measurement unit, the storage unit, the hydroacoustic communication modem, the moisture sensor and the first power supply module output are connected to the query and the data processing unit, the first output of which is connected to the data storage unit input, and the second output for the hydroacoustic communication channel is connected to the program repeater, which through the GSM-communication channel is connected to the operator APM. The second power supply module output is connected to the hydroacoustic communication modem, the output of which is connected to the hydroacoustic antenna.EFFECT: improvement of the corrosion monitoring efficiency, reliability of the underwater pipelines and expansion of the technical facility range to carry out the underwater pipeline corrosion monitoring.1 dwg
Installation for producing multilayer nanostructured composite coating with shape memory effect on steel cylindrical part surface // 2625694
FIELD: metallurgy.SUBSTANCE: installation for producing multilayer nanostructured composite coatings with shape memory effect on the cylindrical part steel surface contains a frame with the part clamping mechanism placed thereon with a cartridge and a tailstock, a part rotating mechanism, a vacuum chamber, which is connected to a vacuum pump and a gas-flame torch for high-speed flame spraying, placed on a longitudinal movement mechanism, a technological module for ion cleaning of the processed part with the power source, the first pyrometer to measure the part temperature placed in front of the high-speed flame spraying, a control device connected to the powder material feeding mechanism with the shape memory effect, a longitudinal movement mechanism of the gas-flame torch and the first pyrometer, a device for surface-plastic part deformation for forming nanostructured layer, installed on the longitudinal movement mechanism of the gas-flame torch, the second pyrometer installed in the area of the surface-plastic deformation, a step-down transformer providing additional heating of the part surface, a part surface cooling device installed on the longitudinal movement mechanism of the gas-flame torch, a powder material feeding mechanism with the shape memory effect, made in the form of three powder dosers with attritors for mechanical activation of powders connected to the vacuum chamber. The dispensers are configured to supply a mechanically activated powder to the channels of the gas-flame torch being three-channel and fixed on the longitudinal movement mechanism at an angle of 70-85° to the part surface.EFFECT: increasing operational properties and reliability of multifunctional coatings on the parts providing enhanced adhesion strength, durability, and strength.2 cl, 2 dwg
ethod of making multi-layer compositive coating // 2625618
FIELD: technological processes.SUBSTANCE: lower layer of the coating is applied in a thickness of 100-150 mcm from a mechanically activated Ni powder, the middle layer is 500-900 mcm thick from a mechanically activated powder with a shape memory effect based on TiNiZr, and the upper layer is 150-600 mcm thick from a mechanically activated mixture of powders From BN, B4C, Co, Ni, C at their ratio, wt %: BN 65-70, B4C 10-15, Co 8-10, Ni 4-7, C 1-3. Then annealing is carried out at a temperature of 850-1000°C for 1.5-2 hours. After application of the middle layer, its surface plastic deformation is carried out when heated in the martensitic transformation temperature range by up to 2-5% of the layer thickness. Mechanic activation of powders and high-speed gas-flame spraying are carried out in a protective atmosphere.EFFECT: increasing the strength characteristics and wear resistance of composite coatings using materials with shape memory effect.4 cl, 1 ex, 1 tbl

ethod of nitridation of titanic alloys in glow discharge // 2625518
FIELD: metallurgy.SUBSTANCE: method of nitridation of products from titanic alloys in a glow discharge involves carrying out of the noted nitriding in a nitrogen-argon gas mixture, using the noted nitrogen-argon gas mixture with a percentage ratio of 60% N2 to 40% Ar, and the noted nitriding in a glow discharge is carried out in magnetic field at a temperature of 650-750°C for 4 hours, voltage in the discharge gap of 450-550 V and pressure in a vacuum chamber of 10-1-1 Pa.EFFECT: process of surface saturation with nitrogen ions during ion nitriding of titanic alloys is intensified, and a developed diffusion zone on a titanium base of the order of 50-70 mcm is obtained.1 dwg, 1 ex
etal-polymer tape // 2625386
FIELD: physics.SUBSTANCE: metal-polymer tape is a laminated tape consisting of polyethylene terephthalate films with an adhered light-absorbing layer applied. The said layer contains a mixture of aluminium powder as a filler and an antifriction filler at a weight ratio of 1:(0.08-0.12), with the following component ratio, %: thermally activated polymer of polyester type 63.0-67.0; mixture of aluminium powder and antifriction filler 26.1-36.7; pigment 0-9.8; oleic acid 0.3-0.4.EFFECT: obtaining a film with high physical and mechanical properties, good perforatability with small punching forces and no light transmission and electrification of the tape, when rewinding.2 tbl
Inhibitor of corrosion and corrosion protection under stress // 2625382
FIELD: chemistry.SUBSTANCE: invention relates to corrosion inhibitors and stress corrosion cracking (SCC) of steel pipelines. The inhibitor contains components at the following ratio, wt %: salts of higher aliphatic acids with alkaline earth metals 5-45; salts of higher aliphatic acids with amines 5-45; substituted trialkoxysilane 25-75.EFFECT: development of an inhibitor providing, when injected into the primer coat, effective protection of the steel against corrosion and stress corrosion cracking.4 cl, 2 tbl, 23 ex
Preparation and processing method of steel backplate // 2625354
FIELD: metallurgy.SUBSTANCE: method for preparing and preprocessing of the metal backplate, including the contacting of at least the part of the backplate with the conditioning composition, containing the source of free fluoride, at that the pH value of the conditioning composition is in the range of 2.5 up to 5, the conditioning composition, substantially free of phosphate ions, and when contacting with the substrate, the conditioning composition activates the surface for better reaction at subsequent coating application steps and removes the oxide layers, when the oxide layers are at the backplate surface, and the preprocessing composition application, containing the metal from group IIIB and/or group IVB to at least the part of the backplate, contacted to the indicated conditioning composition. While contacting the backplate, the preprocessing composition reacts and chemically changes the surface of the substrate and binds to it, forming the protective layer.EFFECT: receipt of the corrosion resistant metal substrates, thus allows to avoid the environmental problems, associated with the chromates or high levels phosphates use.23 cl, 5 tbl, 5 ex
ethod for preparing acid corrosion inhibitor and method of its application // 2625312
FIELD: chemistry.SUBSTANCE: invention relates to the method for preparing an acid corrosion inhibitor-4.5-dihydroxyimidazolidine-2-thione by condensation of glyoxal and thiourea, consisting in the process being carried out at 45°C for two hours, a water-ethyl acetate mixture is used as a solvent, and the reagents are taken in the following molar ratios: Glyoxal 1.0: Thiourea 1.0: Ethyl acetate 0.2. The invention also relates to the method for using the prepared inhibitor by adding it to solutions of inorganic acids in the amount of 0.5 wt % of the solution.EFFECT: new method of preparing a compound has been developed, characterized by the simplicity and high yield of the desired product.2 cl, 1 tbl, 1 ex
Solution for the chemical silvering of copper alloys and a method of its production // 2625149
FIELD: chemistry.SUBSTANCE: solution for chemical silvering of copper alloys contains: silver chloride (in terms of metal) 4-5 g/l, thiourea 70-80 g/l, hydrochloric acid 55-65 ml/l, wetting agent OP-7 6-8 ml/l, ethyl alcohol or isopropyl alcohol 5-10 ml/l. The method of solution preparation involves mixing thiourea with hydrochloric acid with the following ratio of components: thiourea 70-80 g/l, hydrochloric acid 55-65 ml/l. Afterwards, the OP-7 wetting agent is added to the solution in an amount of 6-8 ml/l and ethyl or isopropyl alcohol in an amount of 5-10 ml/l, and this solution is passed through a silver chloride precipitate.EFFECT: reducing the impact of toxic compounds on the environment and process equipment, improving working conditions, the possibility of multiple regeneration of the working solution for chemical silvering of copper alloys.2 cl

Aluminium-titanium nitride cating with adapted morphology for increased wear resistance during machining operations and corresponding method // 2624876
FIELD: tools.SUBSTANCE: present invention relates to coating from (Al,Ti)N, substrate with such coating and to said coating application by physical vapor deposition (PVD) and can be used for machine parts and tools coating. Coating from (Al,Ti)N has two different parts A and B of coating with different nanometric grain size, wherein part B of coating is applied on part A of coating, and part A of coating has grain size, gzA, at least, in 1.25 times larger, than grain size, gzB, of part B of coating and higher modulus of elasticity, than part B of coating. Substrate has, at leasts partially, said coating from (Al,Ti)N. During implementation of said coating application method part A of coating is applied using plasma, having lower electronic temperature and/or lower reactive gas ionization in comparison with plasma, which is used during part B of coating application.EFFECT: providing coating for high-quality cutting tools, enabling improved tribological properties of surfaces, subject to tribological contact, such as hardness, wear resistance, oxidation resistance, improved cutting properties and higher efficiency compared to prior art of cutting tool.21 cl, 3 dwg
ethod for creating doped delta-layers in cvd diamond // 2624754
FIELD: physics.SUBSTANCE: diamond substrate is placed in a CVD reactor. First, a layer of undoped CVD diamond is deposited on the substrate in a stream of a gas mixture containing H2+CH4, then a dopant is introduced into the flow of the said gas mixture to deposit the doped diamond delta-layer over the undoped CVD diamond layer, then the gas mixture, not containing carbon and the said dopant, is formed in the reaction chamber of the CVD reactor for a time exceeding the time of the said dopant, with the getter of the said dopant, then a gas mixture stream containing carbon is formed. All streams of the said gas mixtures are maintained laminar and vortex-free, not creating stagnant zones, through the reaction chamber of the CVD reactor. In a particular embodiment of the invention, boron, nitrogen or phosphorus is used as a dopant. When a layer of undoped CVD diamond is deposited, a boron getter material, for example sulfur, is added to the said gas mixture. In the reaction chamber, in the formation of the said gas mixture without carbon and the dopant, a boron getter is used as the getter. The said gas mixture contains H2 and sulfur or oxygen, and when forming the flow of the gas mixture containing carbon, a gas mixture containing H2+CH4 is used. In the reaction chamber, in the formation of the said gas mixture without carbon and the dopant, a boron getter is used as the getter. The said gas mixture contains H2 and sulfur or oxygen, and when forming the flow of the gas mixture containing carbon, a gas mixture containing H2+CH4 and a boron getter that is sulfur or oxygen. In a CVD diamond, more than one delta-layer can be deposited.EFFECT: creating a thin layer of diamond with an alloying impurity in the undoped CVD diamond.8 cl, 2 ex
ethod for laser cladding // 2624747
FIELD: physics.SUBSTANCE: alloy powder on the hydraulic strut surface, is melted with a laser beam emitted from the semiconductor laser, so that the layer cladded by the laser, is formed. The semiconductor laser is a laser that operates with the semiconductor material as an active medium and emitting through the semiconductor material transition between the energy bands.EFFECT: increasing the efficiency of the laser beam energy absorption, that reduces the energy consumption during processing.7 cl
ethod of phosphatory of magnetic-aluminium alloys of type permalloy (versions) // 2624566
FIELD: chemistry.SUBSTANCE: first version of the method involves applying a galvanic zinc coating from a zincate electrolyte containing ZnO-6-14 g/dm3 and NaOH is 80-140 g/dm3, at a current density of 3-4 A/dm2, the ratio of the anode and cathode surface 1:2 and temperature 15-30°C for 5-7 minutes. After that, a layer of zinc is applied to the phosphate layer at a temperature of 95-98°C for 2-3 minutes with a solution containing, g/dm3: P2O5 - 7.4-9.8, Mn2+ - 2.1-2.8, Zn2+ - 11.0-13.0, NO3- - 21.0-25.0, NO2- - 0.3-0.5. In the second version of the method, a galvanic zinc coating is applied to the surface of the alloy from a cyanide electrolyte containing ZnO-15-45 g/dm3, NaCN - 30-120 g/dm3, NaOH 35-100 g/dm3, with a current density of 1-5 A/dm2, the ratio of anode and cathode surface 1:1 and temperature 15-30°C for 14-17 minutes, after which the phosphate layer is applied in the first version.EFFECT: obtaining a dense, fine-crystalline homogeneous phosphate film with a thickness of 8-15 mcm, having a breakdown voltage not lower than 70 V.4 cl, 2 ex

Target for dispenser cathode based on barium scande // 2624264
FIELD: chemistry.SUBSTANCE: invention relates to the field of manufacturing dispenser cathodes based on barium scandate or other materials based on barium scandate, namely, to the target material and target for physical deposition of thin films, to a dispersed cathode based on barium scandate and the method of its preparation and method of obtaining the target. The target (66) contains a mixture or consists of a mixture of barium oxide BaO, calcium oxide CaO, aluminium oxide Al2O3 and scandium oxide Sc2O3. Molar ratio of BaO:CaO:Al2O3:Sc2O3 is "b:c:x:y" while 2≤b≤5, 1≤c≤3, 2≤x+y≤b+c and 0,1≤y≤1. Way of getting the cathode includes formation of porous shell, impregnated with barium compound and scandium, obtaining intermediate layer of BaO, CaO, Al2O3 and Sc2O3. Way of getting the target includes getting a mixture of BaO, CaO, Al2O3 and Sc2O3 and sintering or melting the mixture with the formation of the target.EFFECT: destabilizing effect reactions BaO and CaO oppose using more inert components Sc2O3 and also Al2O3, with high content of scandium oxide not only stabilizes material but with increased content of aluminium oxide improves stability.13 cl, 3 dwg

ethod for manufacturing of steel sheet with black coating and method for manufacturing of moulded product of sheet steel with black coating // 2623963
FIELD: metallurgy.SUBSTANCE: zinc coating layer is obtained by immersion into a zinc melt with aluminium and magnesium, containing from 1.0 or more to 22.0 or less wt % of aluminium, from 1.5 or more to 10.0 or less wt %. of magnesium, zinc is the rest. Said steel sheet with said zinc coating is contacted with steam within a closed vessel, wherein an oxygen concentration in the closed vessel is 13% or less, to obtain a steel sheet with blackened zinc coating. In an embodiment, before or after steel sheet contacting with steam, steel sheet forming is carried out.EFFECT: steel sheet with durable blackened coating with excellent design, formability and corrosion resistance.10 cl, 4 dwg, 19 tbl, 209 ex

Alloy production method from metal powders with fusing temperatures difference // 2623959
FIELD: metallurgy.SUBSTANCE: powder mixture is prepared from modifying, wetting and fluxing components with the following components ratio, wt %: modifying component 36-48, wetting component 12-24, fluxing component - the rest. Then the powder mixture is applied to the metal substrate. The substrate with the applied powder mixture layer on it is placed under the scanning beam of the relativistic electrons. The mass thickness of the powder layer (σ) Is determined from relation σ=K⋅(E-b), where K=(0.2-0.4) [g⋅cm-2⋅MeV-1], E is the electron energy in MeV, b=0.21 MeV. The substrate each point processing is carried out for 0.5-2.0 seconds to obtain the pad weld. Niobium powder is used as the modifying component.EFFECT: alloy production with the specified element composition and structure, mainly, of medical purpose.4 cl, 1 dwg, 2 ex, 2 tbl
ethod for producing iron powder from lubrication oil // 2623946
FIELD: metallurgy.SUBSTANCE: method involves heating the lubricating oil, which contains dispersion iron powder particles up to a temperature of 65-90°C and subsequent magnetic separation by feeding the heated lubricating oil to the magnetic separator in the opposite direction to the magnet rotation, followed by separation and collection of dispersion iron powder particles coated with an oil film. The dispersion particles are washed with a 3-8% aqueous solution of industrial detergent heated up to 80-90°C for 15-20 minutes at constant stirring, left to stand for 30-40 minutes, washed with hot water at a temperature of 80-90°C and dried at a temperature of 90-110°C to obtain an iron powder in the form of dispersion particles.EFFECT: method provides a reduction in the energy intensity of the process, reducing the labour intensity of the process of obtaining iron powder.2 ex
ethod of obtaining composite porous bioactive coating // 2623944
FIELD: chemistry.SUBSTANCE: method of producing a composite porous bioactive coating includes spraying a substrate on a first stage of a metal coating layer at an angle to the substrate greater than 45°, deposition on it in the second stage of a layer of the same metallic material at an angle to the substrate less than 45° and spraying onto the layers obtained in the third stage of the bioactive ceramic layer. The layers are sprayed on all three stages at a substrate temperature of 200-900°C, and the bioactive ceramic layer is sprayed in the third stage at angles of 45-90° to the surface of the metal coating layer formed in the second sputtering stage.EFFECT: increase in the shear strength of the composite coating while maintaining its porosity of 10-60 percent and a pore size of 10-600 mcm.3 ex

Cutting tool with coating and method for its production // 2623937
FIELD: technological processes.SUBSTANCE: invention relates to a cutting tool having a wear-resistant multilayer coating for machining metals with chip removal and a method for manufacturing said cutting tool. This coating comprises a multilayer structure consisting of alternating layer A of Zr1-xAlxN, where 0<x<1, and a layer B of TiN, and an intermediate layer C between said alternating layers A and B forming the sequence A/C/B/C/A/C/B… with the thickness of the individual layer A and layer B from 1 to 30 nm. The layer C comprises one or more metal elements from each of the layers A and B and differs in composition and structure from said alternating layers A and B. The method for manufacturing said cutting tool comprises depositing a multilayer structure consisting of the above alternating layers A and B forming a sequence A/B/A/B/A… to form at least a portion of the coating, and heat treating said coating to form an intermediate layer C between said alternating layers A and B to form a sequence A/C/B/C/A/C/B.EFFECT: cutting tool with a wear-resistant thermally stable coating with a high hardness under the influence of temperatures equal to 1100 degrees, and improved performance in machining is obtained.17 cl, 1 dwg, 1 tbl, 11 ex
ethod of thermal processing of products with metallic coating // 2623929
FIELD: machine engineering.SUBSTANCE: pre-hardening, tempering and coating the product with a vacuum spraying method, cryogenic treatment of the product in a nitrogen gas environment at a temperature of -153 to -196°C for more than 24 hours followed with heating in it to room temperature are carried out, then a low temper is carried out at a temperature of 150 to 180°C followed by air cooling.EFFECT: increase of products wear resistance and increase of operational durability.2 cl, 2 tbl

ethod of manufacture of film material based on mixture of vox phases, where x = 1,5-2,02 // 2623573
FIELD: chemistry.SUBSTANCE: method involves thermovacuum spraying of vanadium onto a substrate at room temperature, followed by oxidation in air to form an oxide film. Vanadium coating, thickness 30≤d≤40 nm, doped with impurities W, Si, Al, produced from the evaporator is located inside the vacuum installation by doing one of the following: , where H=60 mm -specifies the line size of the substrate, l=280-380 mm - distance between the evaporator and the substrate during deposition speed 0.5-1 nm/s Then carry out oxidation in air at a temperature of 300-480°C to the formation of vanadium oxide film on a substrate with controlled quantities of surface resistance in the range⋅ 1-2,4⋅106 Ohm/cm2. Invention allows to get the loop thermal hysteresis width 22-24°C, shifted by ~ 10°C in the direction of room temperature, with a jump of resistance inside the loop and a half orders of magnitude that when thermostating provides internal memory mode.EFFECT: improved properties.5 dwg, 1 ex, 2 tbl

ethod of applying electroerosion-resistant coatings based on chrome, chromium carbides and cuprum on cuprous electric contacts // 2623548
FIELD: chemistry.SUBSTANCE: method of applying the electroerosion coating of the cuprum-chrome system, containing chromium carbides, on the cuprous electrical contacts comprises electrical explosion of electrically explodable composite conductor consisting of a two-layer flat cuprous shell with mass of 60-360 mg and a core in the form of chromium and graphite powders in the ratio of 5: 1 with mass equal to 0.5-2.0 mass of the shell, formation of impulse polyphase plasma jet from explosion products, melting of the cuprous electrical contact surface with plasma jet with the absorbed power density of 4.5-6.5 GW/m2, depostion on the explosion products surface, the formation thereon of the composite coating of the Cr-C-Cu system and subsequent impulse-periodic electron-beam coating surface treatment with the absorbed energy density of 40-60 J/cm2, pulse duration of 150-200 ms and pulse number of 10-30.EFFECT: invention provides electroerosion-resistant coatings with high adhesion with base at the level of cohesion.8 dwg, 2 ex
 
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