Method for production of aluminium-zirconium ligature (versions) |
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IPC classes for russian patent Method for production of aluminium-zirconium ligature (versions) (RU 2482209):
Alloy combination for production of castings from high-strength cast-iron (versions) / 2480530
As per Version 1, alloy combination contains the following, wt %: silicon 22.0-30.0, magnesium 9.0-12.0, cerium 0.4-0.6, copper is the rest; as per Version 2, alloy combination contains the following, wt %: silicon 22.0-30.0; magnesium 9.0-12.0, misch metal 0.8-1.2, and copper is the rest.
Method for obtaining nitrogen-containing alloy for alloying of steel and cast iron, and nitrogen-containing alloy for steel and cast iron alloying / 2479659
Bearing titanium-chrome ferroalloy is crushed to powder with particle size of less than 0.2 mm. Titanium-chrome ferroalloy contains the following, wt %: chrome - 5.0-35.0, titanium - 15.0-30.0, aluminium - 5.0-10.0, silicon - 5.0-8.0, and iron is the rest. Total amount of Ti, Cr, Si, Al is 30.0-82.0 wt %. Powder is loaded to the container that is moved to a SHS reactor; an exothermic burning reaction is initiated in a layer-by-layer mode at nitrogen pressure of 1.0-15.0 MPa.
 Method for obtaining aluminium-titanium alloy combination (versions) / 2477759
Invention refers to non-ferrous metallurgy and can be used for obtaining alloys based on aluminium. In order to obtain aluminium-titanium alloy combination, alumino-thermal reduction of titanium from its compounds is performed in the environment of molten halogenides of metals. Titanium is reduced from its fluoride or oxide, as well as from fluorotitanate or oxyfluorotitanate of alkali or alkali-earth metal in presence of potassium chloride, sodium fluoride and aluminium fluoride, which are introduced to molten metal or formed during aluminothermic process. The temperature of the process is 850-1150°C. Reduction is performed under the layer of covering flux chloride, which contains potassium and sodium chlorides at the following ratio of components in the mixture, wt %: potassium chloride 42-45, sodium chloride is the rest. Molten metal is exposed during 15-30 minutes and poured into billets. The invention allows obtaining billets of the alloy combination with homogeneous structure with intermetallides with the size of up to 15-30 mcm, reducing non-collectable titanium scrap to 7-9% and improving environmental characteristics of the process.
Foundry alloy for casting heat-resistant titanium alloy and method of its making / 2470084
Invention relates to metallurgy of nonferrous metals, particularly, to production of foundry alloy for alloying refractory titanium-base alloys. Proposed composition contains the following substances, in wt %: tungsten 48.0-52.0, titanium 10.0-20.0, hafnium 0.08-0.1, aluminium making the rest. Charge is smelted in vacuum arc furnace with nonconsumable tungsten electrode. Note here that at first step, titanium placed on bottom of copper water-cooled casting mould and tungsten of higher density is placed there above. Titanium and tungsten are dissolved and melted in proportion corresponding to their content in foundry alloy to make integral ingot at arc current between charge and electrode of 750-1100 A and melting time of 3-10 min. To average ingot chemical composition, ingot is removed from casing mould to subject it to remelting at temperature higher than liquidus temperature of the alloy of titanium and tungsten. Then, required amount of aluminium and hafnium is added to remelted ingot to be placed under aforesaid ingot to proceed with melting at 1750-1900°C.
 New generation nanomodifier (ngnm) / 2468110
Complex modifier contains the following components, wt %: fullerenes 0.1-27, nanosized composite particles of metal carbides selected from the following group: cobalt, iron, nickel 1-43, nanosized composite particles of cobalt 0.2-20, nanosized particles of lanthanum 0.1-29, nanosized composite particles of tungsten 0.5-42, nanosized composite particles of cerium 0.7-33, nanosized composite particles of iron 1-41, nanosized composite particles of nickel 0.6-36, nitrides or silicides or borides or oxides or carbonitrides of metals - balance.
Method of producing aluminium alloys with transition metals / 2467086
Invention relates to nonferrous metallurgy and may be used in production of foundry alloys based on aluminium with transition metals. It comprises making aluminium melt overheated to above alloy liquidus temperature and adding alloying components into melt by fusing the wire. Note here that electric current flows between wire and aluminium melt. Layer of fused flux is produced on aluminium melt surface while said wire is fused by heat released in flux layer at electric current existing therein. Note also that said flux contains cryolite - 40-45 wt %, aluminium oxide - 10-20 wt %, and magnesium fluoride - 35-40 wt %.
 Method for obtaining aluminium-titanium-boron alloy combination / 2466202
Method involves melting of primary aluminium, batch introduction to molten aluminium of titanium-containing and boron-containing components, mixing of molten metal and its pouring, cooling and heat treatment. As titanium-containing component there used is potassium hexafluorotitanate K2TiF6 in quantity of 10÷35 wt %, and as boron-containing component there used is crystalline boric acid H3BO3 in quantity of 4÷10 wt %. Titanium-containing and boron-containing components are pre-mixed and packed into cover from technical aluminium with weight of 0.2÷0.6 kg; packed components are added in portions to molten aluminium with temperature of 950÷1050°C; after that, molten metal is mixed and exposed during 0.2÷0.5 hours, and pouring of alloy combination is performed at molten metal temperature of 800÷850°C to water-cooled moulds with ratio of dimensions of length of casting to height and width of 15÷25:1÷1.5:1.5÷2 and weight of casting of 1.5÷2.5 kg; at that, cooling of molten metal in moulds is performed at the rate of 200÷250°C/min.
Aluminium alloy combination obtaining method / 2464337
Aluminium molten metal is prepared and heated over temperature of 950-1000°C. Liquid flux layer of the following composition, wt %, is induced on aluminium molten metal: cryolite 80-85 and aluminium oxide 15-20. Liquid flux is heated over solution temperature of alloying component with electroslag process and alloying component is added in the required quantity.
 Method to obtain nitrogen-containing ligature / 2462526
To obtain the ligature the source alloy containing 40-85% vanadium, 2-57% of iron and one or more elements selected from a number of calcium, aluminium, silicon, carbon and manganese in an amount of 1.0-21.0%, the powder is milled with a particle size of less than 1.5 mm, the powder is placed in an atmosphere of nitrogen with a purity not less than 99.0% at pressures above 0.1 MPa, an exothermic reaction of creation of vanadium nitride is initiated by local heating of the part of surface layer of the powder; the powder is saturated with nitrogen in so-called self-propagating high-temperature mode of synthesis (SHS) to obtain a composite alloy based on vanadium nitride with the density of 4.0-7.0 g/cm3, which consists of vanadium nitride in an amount of 44-92% and a binder alloy, which is an iron-based alloy comprising at least two elements selected from a number of calcium, aluminium, silicon, carbon, manganese and vanadium in an amount 1.0-20.0% and having a start of melting temperature less than 1500°C.
 Modifying mixture for cast-iron / 2459001
Mixture contains the following components, wt %: magnesium 12-17, graphite 15-20, boric anhydride 12-15, calcium hydride 7-11, boron nitride 10-20, ferrophosphorus 8-12, and ferrosilicium is the rest.
Wear-resistant composite material with eutectic infiltrate / 2482202
Composition material comprises a frame from titanium carbide and an infiltrate - an alloy of eutectic composition with a wetting angle of less than 90°, containing: cobalt 12-20%; chrome 17-20%; aluminium 9.5-10.5%; nickel - balance.
Thermite mixture / 2480531
Thermite mixture contains iron scale, aluminium and graphite chips at the following component ratio, wt %: iron scale 69-73, aluminium 26-29, and graphite chips 1-2.
 Method of producing open-pore nanostructured metal / 2480310
Invention relates to powder metallurgy, particularly, to production of open-pore nano-structured metal. Mix is prepared on the basis of metal nitrate powder and liquid organic compound in the form of polyatomic alcohol at the following molar ratio of said mix: liquid organic compound: metal nitrate = 1 : (2-3). Metal nitrate is pre-dried at 130-150°C. Note here that metal nitrate comprises metal selected from auxiliary subgroup of metals of the 1st group of periodic table or metal from group of iron. Prepared mix is placed in cell to initiate local combustion and self-propagating high-temperature synthesis at continuous diversion of gaseous products formed in combustion.
 Manufacturing method of hard alloy with control of distribution and quantity of carbon in its volume / 2479653
Charging and grinding of a mixture of powders of high-melting compounds and cobalt are performed for manufacture of hard alloy with controlled distribution and quantity of carbon in its volume. At grinding, nanodisperse powder of tungsten with grain size of 30-100 nm in the quantity determined as per the below formula is added in addition to the charge: Pwh=3.88×K/6.12, where PWh - quantity of tungsten quantity; 93.88 -quantity of tungsten in WC; 6.12 - quantity of carbon in WC; K - total carbon potential. The obtained mixture of powders is pressed and sintered.
 Method of producing ti-al-c-based materials / 2479384
Invention relates to powder metallurgy, particularly to producing Ti-Al-C-based materials by high-temperature self-propagating synthesis. It may be used for application of heat-resistant coatings in aircraft engineering, metallurgy, woodwork, machine building and engine production. Initial components are taken on the following ratio, wt %: Ti - 59.2-71.5, Al - 24.0-33.4, C - 4.5-7.4. After combustion in self-propagating high-temperature synthesis, hot plastic forming via mould die with outlet diameter of 1-20 mm at 1350-1500°C.
 Method of making panels from foam aluminium / 2479383
Invention relates to powder metallurgy, particularly, to materials intended for production of foamed aluminium sheets. It may be used in civil engineering, nuclear power engineering, ship building, aircraft engineering, etc. Blank of compacted powder mix sheet with clad top and bottom is placed at foaming die. Said blank is fed horizontally into foaming die inclined toward blank as far as it goes to lifted side inner surface. Thereafter, down side is lifted. Now, powder mix is foamed in furnace to cool foam aluminium panel and to withdraw foamed panel by vertical displacement of die relative to foamed panel from top to bottom.
Method for obtaining aluminium-titanium alloy combination (versions) / 2477759
Invention refers to non-ferrous metallurgy and can be used for obtaining alloys based on aluminium. In order to obtain aluminium-titanium alloy combination, alumino-thermal reduction of titanium from its compounds is performed in the environment of molten halogenides of metals. Titanium is reduced from its fluoride or oxide, as well as from fluorotitanate or oxyfluorotitanate of alkali or alkali-earth metal in presence of potassium chloride, sodium fluoride and aluminium fluoride, which are introduced to molten metal or formed during aluminothermic process. The temperature of the process is 850-1150°C. Reduction is performed under the layer of covering flux chloride, which contains potassium and sodium chlorides at the following ratio of components in the mixture, wt %: potassium chloride 42-45, sodium chloride is the rest. Molten metal is exposed during 15-30 minutes and poured into billets. The invention allows obtaining billets of the alloy combination with homogeneous structure with intermetallides with the size of up to 15-30 mcm, reducing non-collectable titanium scrap to 7-9% and improving environmental characteristics of the process.
 Method of making articles from granulated refractory nickel alloys / 2477670
Invention relates to powder metallurgy, particularly, to production of articles from granulated refractory nickel alloys by isostatic pressing. Capsule is filled with pellets to be subjected to isostatic pressing to make blank in shell. Shell is removed from entire surface of said blank to produce semi-finished product to be machined to volume exceeding that of finished product by, at least, 5%. Angles of transition between thin and bulky zones of semi-finished product are rounded to radius of, at least, 3 mm. Metal layers left on outer surfaces of said thin and bulky zones for machining allowance are related as, at least, 1.4. Heat treatment and final machining are carried out to sizes of finished product.
 Modification method of aluminium-silicon alloys / 2475550
According to the proposed method, aluminium-silicon alloy is first subject to modification by supplying the mixture consisting of chloric and fluoric salts to the molten metal heel; then, after cleaning of molten metal heel from products of their interaction with liquid alloy, which is treated with direct current.
Method of making conditioning agent for hypoeutectic aluminium-silicon alloys / 2475334
Invention relates to metallurgy, particularly, to conditioning castable aluminium-silicon alloys of hypoeutectic composition. Rod-like modifying agent is made by mixing aluminium powder with particle size of 0.5-0.7 mm and superdispersed powder of titanium nitride with mean particle size of 40 nm in planetary-type mill for fine minutes at 400 rpm, and compacting produced composition into rod.
Method of manufacturing products from tungsten/copper pseudoalloy / 2243855
Parts of devices protecting against radioactive emission or electric contacts are proposed to be manufactured from tungsten/copper pseudoalloy. Tungsten powder is mixed with binder containing 0.5-1.5% colophony and 0.05-0.15% ammonium formate or citrate. Resulting mixture is compacted and resulting porous blanc is brought into contact with copper. The total is thermally treated by gradually raising temperature: first in vacuum to remove binder and to melt copper and then in argon atmosphere to 1360-1410оС.
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FIELD: metallurgy. SUBSTANCE: for production of aluminium-zirconium ligature, aluminothermal recovery of zirconium is carried out from its compounds in the environment of melted metal halogenides. Zirconium is recovered from its fluoride or oxide, and also from fluozirconate or oxifluozirconate of alkaline or alkaline-earth metal in presence of potassium chloride, sodium fluoride and aluminium fluoride, introduced into the melt or formed in the process of aluminothermy. The temperature of the process amounts to 850-1150°C. Recovery is carried out under the layer of chloride cover flux, containing potassium and sodium chlorides at the following ratio of components, in the mixture, wt %: potassium chloride 42-45, sodium chloride - balance. The melt is soaked for 15-30 minutes, and bars are poured. The invention makes it possible to produce bars of ligature with homogeneous structure with dimensions of intermetallides of up to 15-30 mcm, at the same time non-return losses of zirconium are reduced down to 7-9%, environmental characteristics of the process are improved. EFFECT: aluminium alloys produced using proposed ligature are characterised by high quality with reduced amount of ligature. 12 cl, 15 ex, 4 tbl
The invention relates to ferrous metallurgy and can be used, in particular, to obtain alloys to produce alloys of aluminum. Modifying and simultaneously alloying elements in aluminum alloys, usually administered in the form of ligature - intermediate aluminum alloys with these elements. Ligatures should be well soluble in liquid aluminum, to have a homogeneous chemical composition and sufficiently dispersed inclusions of primary intermetallics. To obtain aluminum alloys, in particular 1557, PC, 1201, AMG, AMG use the ligature aluminium zirconium. A method of obtaining ligature aluminium zirconium, including metallothermic recovery of zirconium from its halides are mixed with chlorides of alkali metals, when the content in the mixture 35-50% zirconium tetrachloride and 65-50% of the chlorides of sodium and potassium. The resulting alloy contains up to 5 wt.% zirconium (USSR Author's certificate No. 254090, SS 1/02, 07.10.1969). The disadvantage of this method is obtaining poor in zirconium alloys, and high deadweight losses Zirconia. A method of obtaining ligature aluminium zirconium, including metallothermic recovery of zirconium from porcelanato potassium by introducing the above-mentioned porcelanato in two steps: first, throw salt on Ernest molten aluminum at a temperature of 1100-1200°C and knead the salt into the melt, and before the second additive salt re-heat the melt to 1200°C (B. I. Bondarev and other Modifications wrought aluminium alloys. Moscow, metallurgy, 1979, p.134-135). The disadvantages of this method include high temperature process, causing a frenzy of zirconium, leading to high deadweight losses Zirconia. The objective of the invention is to obtain a homogeneous ingots with dimensions of intermetallics up to 15-30 μm, the reduction of the deadweight loss of zirconium to 7-9%, improving the environmental performance of the process. The technical result of the invention is to improve the quality of the alloys based on aluminium by reducing the number of ligatures. The technical result for the first variant embodiment of the invention is achieved in that in the method of producing alloys aluminum-zirconium including aluminothermic recovery of zirconium from its compounds in the environment of molten halides of the metals and casting into ingots, molten aluminum is injected mixture containing zirconium fluoride, potassium chloride and sodium fluoride, the recovery is carried out at temperatures of 850-1150°C, With the following ratio of components in the mixture, wt.%:
The technical result for the second variant implementation of the invention is achieved in that in the method of producing alloys aluminum-zirconium including aluminothermic recovery of zirconium from its compounds in the environment of molten halides of the metals and casting into ingots, molten aluminum is injected mixture containing zirconium oxide, aluminum fluoride, sodium fluoride and potassium chloride, the recovery is carried out at temperatures of 850-1150°C, With the following ratio of components in the mixture, wt.%:
The technical result for the third variant embodiment of the invention is achieved in that in the method of producing alloys aluminum-zirconium including aluminothermic recovery of zirconium from its compounds in the environment of molten halides of the metals and casting into ingots, molten aluminum is injected mixture containing FORCIMAT and the and oxypertine alkali or alkaline earth metal chloride is sodium or potassium, the restoration is carried out at a temperature of 800-1050°C, With the following ratio of components in the mixture, wt.%:
For protection from oxidation and hydrogen saturation, as well as intensification of the process in each of the variants of the restoration carried out under a layer of chloride coating flux shutter melt lead in 15-30 minutes, and as a covering chloride flux using the flux containing the chlorides of potassium and sodium in the following ratio of components in the mixture, wt.%:
Introduction in the molten aluminum halides of alkali metals (sodium fluoride and potassium chloride), as well as the introduction or education in the recovery process porcelanato alkali or alkaline earth metal is aluminum fluoride accelerates the dissolution of the formed zirconium in aluminum, simplifying technology. The stated ratio of the components of the mixture introduced into the molten aluminum to restore, provide rich in zirconium alloys. The content of zirconium in the alloy is 10 wt.%. The invention is illustrated by the following examples. Example 1 In a blender for 1 ton of molten aluminum at 850°C napravlyayut 0.02 ton of cover flux, consisting of 43 wt.% potassium chloride and 57 wt.% sodium chloride, after deposition of a coating of flux to the melt load 560 kg of a mixture containing, wt.%:
After melting the mixture temperature is reduced to 800°Crashplan incubated for 20 minutes at the same temperature, and then heated to the initial temperature and poured into ingots. Receive a 10% ligature Al-Zr with removing the last 93%. Examples 2-6 were carried out analogously to example 1. The data in table 1.
Example 7 In a blender for 1 ton of molten aluminum at 850°C napravlyayut 0.02 ton of cover flux, consisting of 44 wt.% potassium chloride and 56 wt.% sodium chloride, after deposition of a coating of flux to the melt load 560 kg of a mixture containing, wt.%:
After melting the mixture temperature is reduced to 810°C. the Melt was incubated for 20 minutes at the same temperature, and then heated to the initial temperature and poured into ingots. Receive a 10% ligature A1 - Zr with removing the last 93%. Examples 8-12 was carried out analogously to example 7. The data in table 2. 1150
Example 13 In a blender for 1 ton of molten aluminum at 840°C napravlyayut 0.02 ton of cover flux, consisting of 44 wt.% potassium chloride and 56 wt.% sodium chloride, after deposition of a coating of flux to the melt load 560 kg of a mixture containing, wt.%:
After melting the mixture temperature is reduced to 790°C. the Melt was incubated for 25 minutes at the same temperature, and then heated to the initial temperature and poured into ingots. Receive a 10% ligature Al-Zr with removing the last 91%. Examples 14-15 were carried out analogously to example 13. The data in table 3.
Received the ligature used to obtain aluminum alloy. The number of ligatures to obtain the corresponding alloy are presented in table 4.
1. A method of obtaining a ligature aluminium zirconium, including aluminothermic recovery of zirconium from its compounds in the environment of molten halides of the metals and casting into ingots, characterized in that the molten aluminum is injected mixture of zirconium fluoride, potassium chloride and sodium fluoride, and recovering the mixture is carried out at temperatures of 850-1150°C in the following ratio of components in the mixture, wt.%:
2. The method according to claim 1, characterized in that the restore carried out under a layer of chloride coating of flux. 3. The method according to claim 1 or 2, characterized in that the melt was incubated for 15-30 minutes 4. The method according to claim 2, characterized in that as the cover chloride flux using the flux containing the chlorides of potassium and sodium in the following ratio of components in the mixture, wt.%:
5. A method of obtaining a ligature aluminium zirconium, including aluminothermic recovery of zirconium from its compounds in the environment of molten halides of the metals and casting into ingots, characterized in that the molten aluminum is injected mixture containing zirconium oxide, aluminum fluoride, sodium fluoride and potassium chloride, and recovery is carried out at temperatures of 850-1150°C in the following ratio of components in the mixture, wt.%:
6. The method according to claim 5, characterized in that vosstanovlenie is carried out under a layer of chloride coating of flux. 7. The method according to claim 5 or 6, characterized in that the melt was incubated for 15-30 minutes 8. The method according to claim 6, characterized in that as the cover chloride flux using the flux containing the chlorides of potassium and sodium in the following ratio of components in the mixture, wt.%:
9. A method of obtaining a ligature aluminium zirconium, including aluminothermic recovery of zirconium from its compounds in the environment of molten halides of the metals and casting into ingots, characterized in that the molten aluminum is injected mixture containing FORCIMAT or acceptanceand alkali or alkaline earth metal chloride is sodium or potassium, and the recovery is carried out at a temperature of 800-1050°C in the following ratio of components in the mixture, wt.%:
10. The method according to claim 9, characterized in that the restoration carried out under a layer of chloride coating of flux. 11. The method according to claim 8 or 9, characterized in that the melt was incubated for 15-30 minutes 12. The method according to claim 10, characterized in that as the cover chloride flux using the flux containing the chlorides of potassium and sodium in the following ratio of components in the mixture, wt.%:
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