RussianPatents.com
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Plate from titanium or titanium alloy with perfect ratio between stamping capability and strength. RU patent 2463385. |
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FIELD: metallurgy. SUBSTANCE: plate from titanium or a titanium alloy with improved combination of stamping capability and strength includes a basic plate from titanium or a titanium alloy rolled in one direction, and a lubricant film applied onto surface of the basic plate from titanium or a titanium alloy. The lubricating film surface has a friction coefficient during sliding set as less than 0.15. The basic plate from titanium or a titanium alloy extends in rolling direction L (L-El) and Lankford value r in direction T, perpendicular to rolling direction (T-r), besides, L-E1 and T-r satisfy the following expression (1): (T-r)/(L-El)≥0.07 (1). EFFECT: plate has better combination of pressing capability and strength. 10 cl, 5 dwg, 10 tbl, 5 ex
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Method of treatment of steel parts surfaces / 2462517 Cold plastic deformation of the treated surface is carried out during continuous feeding of radical-generating substance to the zone of deformation to achieve a given quantity of material hardening of the surface layer. This is followed by chemical and thermal processing of parts by heating of parts to the temperature of chemical modification of radical-generating substance at which the destruction of its molecules starts, the details are exposed at a given temperature at continuous supply of radical-generating substance within the time required for maximum saturation with radicals of the hardened surface layer. Before heating the parts, vacuum is generated in the chamber or shielding gas nitrogen is injected, and then the parts are heated, and radical-generating substance is a mineral oil. |
Ingredients to produce corrosion-resistant and heat-resistant coatings on parts of structural steels and heat-resistant alloys based on nickel / 2455390 Composition contains the following ingredients wt %: 30-35 of aluminium-chromium-phosphate binder, 12-18 of water, 2-3 of chromic anhydride, 1-3 aluminium hydroxide powder, 10-22 aluminium- silicon powder, and the rest is aluminium powder. Powders of aluminium hydroxide, aluminium - silicon, aluminium, have a fraction of up to 10 microns. |
Cutting tool / 2455149 Invention relates to a cutting tool, in particular, to knives for cutting food products. A cutting tool (1) has a cutting section (13) of a cutting blade with coated surface (7) made of electrode material or a product of reaction of electrode material melted by pulse discharges induced between the cutting section (13) of the blade and the electrode in the engine oil and between the body of the blade and the coating the gradient metallic structure is formed with the depth from 5 micrometres to 30 micrometres. An electrode is a moulded product, moulded from powder of one of the metal or a mixture powder of metals, or the metals, metal compound or metal compounds, of the ceramic material or ceramic materials, heat-treated moulded product, which is a moulded product subjected to heat treatment. The moulded product contains at least one of Ti, Si, cubic BN, TiC, WC, SiC, Cr3C2, Al2O3, ZrC2-Y, TiN and TiB. |
Method for corrosion-resistant covering application to titanium alloy hardware / 2451771 Invention relates to method of applying corrosion-resistant covering to titanium alloy hardware and may be used to protect titanium alloy tubes from corrosion when the tubes are used in marine environment containing up to 20 wt % of chlorides. Hardware surface is covered with thermally unstable ruthenium salt solution Ru(OH)Cl3 with viscosity raising additives. Thermal annealing is done, as a result of which a layer of ruthenium oxide is applied. Corrosion-resistant covering is to be applied to 100% of protected surface. The solution may additionally contain H2IrCl2, TiCl3, HCl. Glycerine in ratio up to 20% of general solution amount may be used as a viscosity raising additive. Thermal annealing may be done in oxidising atmosphere at temperature of 450°C. The hardware surface is pretreated to increase roughness and wettability, particularly, bead blasting treatment is done with degreasing following it. Covering of titanium alloy hardware of any degree of complexity is provided, including covering hardware with weld seams, particularly, inner surface of tubes and double bottom tanks. |
Steel tool or carbide tool treatment method / 2451108 Steel tool or carbide tool treatment method involves application of diffusion coating by saturation of steel or carbide tool in eutectic lead-lithium melt with addition of copper and nickel so that the coating is obtained. After application of coating the tool is strengthened by its being aged on material with hardness of 10 to 18 HRCe at value of contact stresses of 2000 to 5000 MPa during 2-5 minutes. |
Method of surface impregnation of steel actuator cutting edge of tiller / 2447194 Method includes saturation of a cutting edge with strengthening elements from a plaster containing 84 or 90 wt % of boron carbide and 16 or 10 wt % of a fused flux for induction fusing P-0.66. The plaster is applied onto the cutting edge and the actuator's tip at the side contacting with soil, saturation is carried out with high-frequency currents with heating of the saturated surface up to the temperature of 1250-1300°C and soaking time of 1-2 min. Subsequent thermal treatment is carried out by heating of the entire tiller up to 850-900°C with subsequent tempering in the oil medium. The fused flux for induction fusing P-0.66 contains modifiers, such as a mixture of a silicocalcium powder 20 wt % and a powder of flux AN-348A 80 wt %. |
Method of processing surface of article made from titanium alloy / 2445406 Proposed method comprises preliminary preparation of article surface, placing article and current conduction titanium material in processing zone, creating vacuum in said zone, feeding negative potential, separately, to article and current conducting material, firing arc on current conducting material that burns in vapors of said material to produce plasma, bombarding, cleaning and diffusing article surface and accumulating ions of current conducting material on article surface at article surface temperature below that strength loss in article material to produce coating. Two current conducting materials are arranged in processing zone, one of titanium and another one of nickel-based alloy. Accumulation and diffusion of titanium material ions are performed at negative potential at article of 120-200 V in atmosphere of inert gas consisting of the mix of oxygen and argon in (1-2):1 ratio at 0.05-0.3 MPa. Thereafter, reaction gas feed is terminated to excite vacuum arc at second nickel-based material and to accumulate its ions at negative potential of 15-20 V. |
Laminar material from metal sheets and polymer / 2440246 Invention relates to laminar material made from metal sheets and polymer layer reinforced by fibers and bonded therewith, to be used in aircraft or aerospace engineering. Laminar material comprises at least one first metal layer of invariable thickness of at least 1.5 mm and at least one second of invariable thickness of at least 1.5 mm. Said first and second layers are bonded together by polymer layer reinforced by fibers, volume content of fibers not exceeding 45%. Aforesaid polymer layer comprises reinforcing fibers laid in polymer matrix and selected from the group including fiber glass, carbon fibers, drawn thermoplastic fibers, natural fibers and combinations thereof. Said fibers are impregnated by polymer matrix in partially hardened state. |
Complicated profile consisiting of metal profile coated with metal foil / 2439201 Invention is referred to a complicated profile (1), consisting of a metal profile (2) coated with metal foil (3), and a method of coating application on production line by means of the metal foil (4). The method includes subsequent transportation of preliminary cut-out sections of shaped profiles (2) made from plastic or metal. The coating of each shaped profile (2) section with metal foil (3) is ensured to couple the said foil (3) with the said profile (2) in any point of surfaces of metal foil. This coating also ensures detection of the first, the lower by downstream, end (6) and/or the second, the upper by downstream, end (7) of each shaped profile (2) section and their cutting at the level of each end of each shaped profile section. The above metal foil (3) is selected so that its surface hardness could be higher than the hardness of the above shaped profile (2). |
Method of surface treatment to protect it / 2439200 Substrate material is coated with a layer containing, at least, one metal for producing the applied layer on the substrate material. In order to produce metal protective layer, the applied layer is then treated thermally in recovering environment at pressure below atmospheric level. |
Method of chemical-thermal treatment of vanadium alloys alloyed with chrome and titanium / 2463377 Method of thermomechanical treatment of semi-finished products from an alloy based on vanadium alloyed with chrome and titanium includes homogenisation baking of semi-finished products at temperature exceeding temperature of secondary phases solubility, multiple thermomechanical treatment, including plastic deformation and baking, and the final stabilising baking at the temperature of 950-1100°C. At the initial stages of multiple thermomechanical treatment, thermodiffusion oxidation is carried out, including thermal treatment on air to produce oxide films, vacuum baking at temperatures T=(450÷700)°C to absorb oxygen contained in an oxide film, by a surface layer of semi-finished products with further thermal treatment in vacuum to provide for homogeneous distribution of oxygen by thickness of semi-finished products. |
Method to produce cold-deformed pipes from double-phase alloys based on titanium / 2463376 Method to manufacture cold-deformed pipes from double-phase alloys based on titanium includes ingot smelting, ingot forging in a β-area or β- and α+β-area with forging completion in the α+β-area into an intermediate blank with the specified forging reduction. The intermediate blank is produced with forging reduction of at least 1.35, a block is made from the intermediate blank, which is pressed into a billet and thermally treated at the temperature that is by 30°-40°C below the temperature of Tint, and them the billet is rolled with intermediate surface treatment, etching and thermal treatment. Drawing in process of rolling is defined using the following formula. |
Method of surface treatment of products of heat resisting alloys / 2462516 Method is implemented by the surface treatment of parts made of heat resisting alloys with high-current pulsed electron beam with a pulse duration of 20-50 mcs, the electron energy of 110-120 keV, the energy density of 18-45 J/cm2 per pulse and number of pulses of 2.5, followed by a stabilising annealing in a vacuum at a pressure not exceeding 10-5 mm Hg for 2-6 hours. |
Method for obtaining high-strength wire from titanium-based alloy of structural purpose / 2460825 Method for obtaining high-strength wire from (α+β)-titanium-based martensite alloy involves obtaining of ingot, its hot deformation so that workpiece for drawing is obtained; drawing at room temperature till final size is obtained, and final heat treatment. After heat treatment is completed, the obtained workpieces are annealed in the air and machined; drawing is performed for many times with intermediate annealings in the air environment; at that, the machining is performed after the first drawing pass, and final heat treatment is performed in the air environment during 60-180 minutes at temperature of (0.5÷0.7)TSL °C with further cooling to room temperature. |
Method of thermomechanical treatment of items from titanium alloys / 2457273 Method of thermomechanical treatment of items from titanium alloys involves thermomechanical treatment which is performed at twelve stages; at that, at the first stage there performed is heating to temperature of (Tpt+200÷Tpt+270)°C, deformation which involves four stages at cooling down to temperature of (Tpt+70÷Tpt-100)°C with change of deformation direction through 90° at alternation of shrinkage and drawing with deformation degree of 30÷60% at each stage; the second stage involves heating to temperature of (Tpt+120÷Tpt+170)°C, four stages of deformation at cooling down to the temperature of (Tpt-50÷Tpt-110)°C with the change of deformation direction through 90°C at alternation of shrinkage and drawing with deformation degree of 30-60% at each stage; the third stage involves heating up to temperature of (Tpt+20÷Tpt+70)°C, four stages of deformation at cooling down to temperature of (Tpt-70÷Tpt-140)°C with the change of deformation direction through 90°C at alternation of shrinkage and drawing with deformation degree of 30÷60% at each stage; the fourth stage involves heating up to temperature of (Tpt-20÷Tpt-40)°C, deformation with degree of 15-60% at cooling down to temperature of (Tpt-100÷Tpt-140)°C; the fifth stage involves heating up to temperature of (Tpt+70÷Tpt+90)°C, deformation with degree of 30-60% at cooling down to temperature of (Tpt-40÷Tpt-90)°C; the sixth stage involves heating up to temperature of (Tpt-20÷Tpt-40)°C, deformation with degree of 20-40% during cooling down to the temperature of (Tpt-60÷Tpt-100)°C; the seventh stage involves heating up to temperature of (Tpt+20÷Tpt+50)°C, deformation with degree of 30-60%) during cooling down to temperature of (Tpt-40÷Tpt-70)°C; the eighth stage involves heating up to temperature of (Tpt-20÷Tpt-40)°C, deformation with degree of 20-60% during cooling down to temperature of (Tpt-60÷Tpt-100)°C; the ninth stage involves heating up to temperature of (Tpt+30÷Tpt+70)°C, deformation at rolling with degree of 40-70% during cooling down to the temperature of (Tpt-70÷Tpt-170)°C; the tenth stage involves heating up to temperature of (Tpt-20÷Tpt-40)°C, rolling deformation with degree of 30-50% during cooling down to the temperature of (Tpt-100÷Tpt-200)°C; the eleventh stage involves heating to temperature of (Tpt-70÷Tpt-170)°C with exposure during 15-60 minutes, air or water cooling; the twelfth stage involves heating up to temperature of (Tpt-270÷Tpt-470)°C with exposure during 5-15 hours, where Tpt - polymorphic transformation temperature; at that, deformation direction through 90° is changed from two to four times starting from the fourth stage and ending with the eighth stage. |
Method of forming ultra-fine-grained structure in billets from metal and alloys / 2456111 Invention relates to metal forming and may be used in machine building, engine production, automotive industry, etc. Proposed method comprises multiple reiteration of upsetting-broaching operations on applying deforming force along three axes of orthogonal coordinate system of the workpiece at a time. Billet is broached to square and upset in die. Die has cylindrical cavity with axis of symmetry aligned with deforming force direction. Forming is executed in several cycles to reach accumulated deformation e>2 so that square diagonal does not exceed die cavity diameter after broaching. Tapered recesses are formed on end surfaces of workpiece being upset. |
Spacer grid for positioning of fuel rods / 2454480 Method for obtaining metal sheet (1) from zirconium-based alloy with Kerns factor close to 0.33 in the direction perpendicular to rolling direction, for manufacture of spacer grid. Metal sheet (1) has longitudinal axis A, transverse axis B, which determine the sheet plane (BA). Method involves a stage for obtaining sheet (2) from zirconium-based alloy; at that, sheet (2) is subject at least to one preparatory cold rolling and final cold rolling, which are carried out in one direction along longitudinal axis (A). Heat treatment of sheet (2) is performed between preparatory and final rolling so that partial recrystallisation of zirconium-based alloy with degree of not more than 90% is performed. Method for obtaining spacer grid (3) which restricts grid (5) cells for fuel rods. Cutting of sheet (1) into strips (4) is performed so that their longitudinal axes (B) are perpendicular to rolling direction. Strips (4) are arranged so that spacer grid (3) can be formed and so that longitudinal axes (B) of metal strips (4) are perpendicular to longitudinal direction (6) of grid cells (5). |
Treatment method of semi-finished products from th-1 titanium nickelide / 2451106 Treatment method of semi-finished products from TH-1 titanium nickelide by preliminary heat cycling at intervals of martensitic conversions in twisting mode is proposed. Heat cycling at intervals of martensic conversions is repeated until steady-state values of deformation responses are obtained; at that, semi-finished product is heated from martensitic state T= 295 K to austenitic state T= 500 K and cooled back to martensitic state. |
Treatment method of vanadium-based alloys of v-4ti-4cr system / 2445400 Treatment method of vanadium-based alloys of V-4Ti-4Cr system is proposed. Method involves homogenisation, thermal mechanical treatment and final stabilising annealing. After homogenisation is completed, ingots are heated to 850-1000°C with exposure at this temperature during 1.5-2 hours; extrusion with elongation ratio of 2-5 with further annealing at temperature exceeding the solubility temperature of secondary phases in vacuum of 10-4 Pa. First, thermal mechanical treatment is performed by means of deformation with deformation degree of 30% at room temperature with further annealing at temperature of 500-600°C, and then, by means of multiple pressing with change of deformation axis along three axes with deformation value of not less than 30% per pass, and final stabilising annealing is performed at 800-900°C. |
Method of producing deformed parts from pseudo-beta-titanium alloys / 2441097 Ingot is first produced to be subjected to thermomechanical treatment by heating at temperature some 150÷380°C higher than Tcp and to deformation to 40÷70%, heating to temperature some 60÷220°C higher than Tcp and deformation to 30÷60%, heating to some 20÷60°C below Tcp and deformation to 30÷60%. Then recrystallisation is performed by heating the ingot to temperature some 70÷140°C higher than Tcp and deformation to 20÷60% and cooling to room temperature. After heating to temperature some 20÷60°C below Tcp the billet is deformed to 30÷70% and subjected to additional recrystallisation by heating to temperature some 30÷110°C higher than Tcp and deformation to 15÷50% and cooling to room temperature. After heating to temperature some 20÷60°C below Tcp the billet is deformed to 50÷90% and subjected to final deformation. |
Valve of internal combustion engine, method of its manufacture, and heat resistant titanium alloy used for its manufacture / 2244135 Invention relates to valve of internal combustion engine, method of its manufacture and heat-resistant titanium alloy used for manufacture of valve consisting of following components, mass %: aluminum 7.5-12.5; molybdenum 1.6-2.6; zirconium 1.4-2.4; silicon 0.1-0.2' yttrium 0.005-0.1; titanium - the rest. It has α+α2+β phase composition with intermetallide α2 phase on Ti3Al base dispersed in α phase. Proposed method includes forming of valve from cylindrical blank by deformation machining with preliminary heating and subsequent heat treatment. Preliminary heating of part of blank related to rod done to temperature 5-20oC lower than temperature of complete polymorphic transformation of alloy, and its deformation machining is carrying out by wedge cross rolling. Deformation machining of part of blank related to head is done by forging with preliminary heating to temperature 5-50oC higher than temperature of complete polymorphic transformation of alloy corresponding to beginning of forging, and forging is finished at temperature lower than complete polymorphic transformation of alloy to form plate head of valve and transition section provided smooth changing of head into rod. Invention provides designing of valve, method of its manufacture and heat-resistant alloy used in manufacture of valve making it possible to operate valve within operating temperature range owing to increased long-term strength and creep resistant of valve head material and increased strength, modulus of elasticity and hardness of valve rod material. |
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