367 results about "5005 aluminium alloy" patented technology

The invention opened a high strength and high extensibility 6063 Al alloy which contain the Cu, Mn, chrome, Fe, Zn, Ti, Al. The process is: a, founding: adding the material to the furnace melting stir ring and skimming coving refining skimming and refining thermal retardation casting ingot. b extruding and heat processing: isotroping air cooling, heating extruding quenching cutting cooling stretching straightening aging treatment product. The process has improved the mechanics of the alloy, also the elongation percentage (60%) and the intensity (40%). The tensile strength has been improved to 280-300 MPa, the elongation percentage is improved to 13%. So it satisfy the windows and the curtain wall's need.

The invention provides a refiner of aluminium and aluminium alloy with high efficiency and low cost and a preparation method thereof, belonging to the technical field of a refiner of aluminium and aluminium alloy and solving the problems that in the prior art, the refiner of the aluminium and aluminium alloy has higher requirements for technique equipment, trivial and complex technique, excessive cost, poor product performance and the like. The refiner of aluminium and aluminium alloy with high efficiency and low cost is aluminium-titanium-carbon-rare earth master alloy; the master alloy contains 3% to 10wt% of Ti, 0.02 to 1wt% of C, 0.02 to 1wt% of RE, aluminium and impurity elements; and the preparation method comprises the following steps of: adopting the rare earth compound as a reacting promoter, casting after smelting reaction and obtaining the refiner. The preparation method has low cost, high efficiency and easy industrialization; the raw material has low price and wide source; the preparation can be carried out in a well-type resistance furnace, does not need extra stirring equipment, and has simple technique; and the refiner has the advantages of capability of being used with a modifier simultaneously, stable organization, refining effect and the like.

A heat treatment technology for markedly raising comprehensive performance of aluminium alloy is accomplished by the adoption of the following scheme: carrying out a solid solution treatment on the aluminium alloy, taking the aluminium alloy out of a furnace and carrying out water quenching, and carrying out a pre-aging treatment, cold deformation and a secondary aging treatment. Nanometer-level aging precipitation strengthening phase is formed by the pre-aging treatment, and dislocation configuration generated from the subsequent cold deformation can be changed, so as to improve the strength, ductility and toughness of the alloy; during the cold deformation, nanometer-level atomic clusters will precipitate out from solute atoms precipitated during the pre-aging treatment, or ''pinning'' air mass is formed around the dislocation structure, thus further raising the strength of the alloy. The precipitated precipitation strengthening phase is nanometer level, thus raising the ductility and toughness of the alloy and markedly enhancing the strength of the alloy on the basis of guaranteeing good plasticity. The technological process provided by the invention is simple, is convenient to operate, can be adopted to markedly raise comprehensive performance such as the strength and plasticity of the aluminium alloy and improve the corrosion resistant performance and fatigue resistant performance of the aluminium alloy, and is suitable for industrial application.

The invention discloses a spinning machining method for an aluminium alloy thin-walled revolution body. The spinning machining method comprises the following steps: producing an aluminium alloy spun blank with required dimensions, and carrying out annealing treatment on the aluminium alloy spun blank; carrying out shearing spinning on the aluminium alloy spun blank to obtain a primary conical barrel; carrying out annealing treatment on the primary conical barrel, and cutting a process allowance at a large end to form a secondary conical barrel; carrying out common spinning on the secondary conical barrel on a spinning machine to obtain a pre-spun aluminium alloy thin-walled revolution body; and carrying out annealing treatment and surface polishing treatment on the pre-spun blank, and then cutting process allowances at the two ends of a spun part by using a plasma cutting machine, so as to obtain the aluminium alloy thin-walled revolution body meeting process requirements. According to the invention, the aluminium alloy thin-walled revolution body is machined by virtue of the technologies of shearing spinning and common spinning; the dimension and structural performance requirements of a bullet shell are met; a machining method and a stamping-welding method can be replaced; and a low-cost and efficient machining method is provided for machining for an aluminium alloy shell of a bullet.

The process of making oil cylinder body and cover of aluminum alloy includes the following steps: heating in a smelting furnace the materials comprising Zn 1-8.0 wt%, Mg 1.0-5.0 wt%, Cu 0.8-2.5 wt%, Mn 0.2-1.0 wt%, Cr 0.1-0.3 wt% and Al for the rest; refining; casting in extruding and casting mold through fast closing mold, slowly applying pressure and maintaining pressure for the aluminum alloy to solidify and crystallize; and final solid solution ageing T6 heat treatment on the cast blank to obtain oil cylinder body and cover casting. The process has high material utilizing rate, high production efficiency and low production cost, and the product blank has light weight, compact and homogeneous structure and less faults.

This invention relates to the crystal grain refining agent which is used to produce aluminium alloy and the method of preparation and application thereof. It is composed of intermediate alloy Cu-P and Al-Ti-B and the crystal grain refine reagent has nanometer crystal band, the weight ratio of the alloy Cu-P to alloy Al-Ti-B is 0.35-0.45:0.65-0.55, the average thickness of bank is 0.3-0.6mm, and the average width is 0.4-1.2mm. The bank is made by quickly quenching flailing. It can be applied to the plunger of the combustion engine by melting metal casting. During the production of aluminium alloy by melting metal, the primary crystal silicon and eutectic silicon can be refined by adding into the crystal grain refine reagent, this increases the energy of interface, so it can decrease the flaw of casting, the over-all properties of the aluminium alloy can be increased. At last, the mechanical property of plunger which is made of aluminium alloy, the abrasion of it and the lifetime of it can improve distinctly.

The aluminium titanium carbon intermediate alloy grain thinning agent relates to a AlTiC grain thining agent containing TiC granules for thinning aluminium and aluminium alloy and its preparation method. It is characterized by that said alloy composition contains (wt%) 3%-6% of Ti anjd 0.02%-0.5% of C, the reset is aluminium and inevitable impurity, in which the ratio of Ti:C is 25:1. Its preparation method is characterized by that the carbon powder prepared by using one selected from industrial graphite, natural graphite, amorphous graphite, active carbon and carbon black carbon is introduced into aluminium melt by means of graphite rotor of rotary refining equipment and stirred until the aluminium melt contains no monomer carbon.

A preparation method of a high-quality 6061 aluminium alloy forging for semiconductor equipment comprises the following steps of: (1) blank making by a common semicontinuous casting method; (2) homogenization heat treatment of 6061 aluminium alloy by two-stage homogenization technology, wherein a first-stage temperature range is 540-570 DEG C, heat preservation time is selected to be 12-24 hours, a second-stage temperature range is 570-620 DEG C, and heat preservation time is selected to be 18-24 hours; (3) forging technology, wherein a preheating temperature of a press chopping block is 300-350 DEG C, the maximal forging heating time is not more than 3 when multi-heating forging is employed, an upsetting forging ratio for each heating is controlled to be 4-6 when forging with 2-3 heating times is employed, the forging ratio is controlled to be 7-9 when forging with one heating time is employed, and the final forging temperature is controlled to be 320-360 DEG C; (4) solid solution aging technology, wherein a solid solution temperature is 520-540 DEG C, heat preservation time is on a basis of 45 min, the heat preservation time increases by 1 min when the thickness of the forging increases by 1 mm, an aging temperature is 160-180 DEG C, and heat preservation time is between 16-25 hours. The invention provides the preparation method of a high-quality 6061 aluminium alloy forging for semiconductor equipment, and the method has the advantages of strong operability, high yield, stable product performance, high product added value, and the like, is applicable to production for small-lot supply, and has significant economic benefits.

The invention relates to a preparation method of a 7B04 aluminium alloy section, which solves the problems that a large-sized round cast ingot is difficult to form and mechanical property and electrical conductivity can not meet index requirements at the same time in the traditional preparation process of the 7B04 aluminium alloy section. The preparation method comprises the following steps of: 1, smelting the round cast ingot of a casting alloy; 2, uniformly annealing; 3, extruding into the section; 4, quenching; and 5, aging to obtain the 7B04 aluminium alloy section. The 7B04 aluminium alloy section has properties meeting the index requirements, and achieves the finished product ratio more than 80 percent.

The invention provides a casting method of aluminum alloys. The method comprises four steps of smelting, refining, moulding and pouring. The casting method is characterized by adding specific additive in the casting process and strictly controlling standing time and casting temperature after refining of aluminum pad to enhance purity of aluminum melt and product quality of the aluminum alloys. The tensile strength, pinhole and the like of the castings which are made by the method are obviously enhanced, and defective index of large aluminum alloy castings made by the method is obviously reduced, and the method is applicable to casting of large aluminum castings with high requirements.

The invention relates to a new type strong antifriction anticorrosion aluminum alloy and the method to manufacture that belongs to metal material field. The weight ratio of the constituents is Si 1.0-50%, Fe 0.5-10.0%, Cu 0.1-5.0%, Mg 0.01-5.0%, La 0.01-3.0%, Ce 0.01-3.0% and the rest is Al. The manufacturing method is that: mixing the simple metal substance Al, Si, Fe, Cu, Mg, La, Ce according to the ratio, spraying settling to AlSiFeCuMgLaCe alloy rotundity ingot on the spraying molding device. The alloy rotundity could be processed to molding mechanism components. It could be widely used in motorcar, mechanism, metallurgy, and electric. The combination property is improved.

The invention provides a microemulsified cutting fluid. The microemulsified cutting fluid comprises following ingredients, by weight, 3.00 to 21.00% of a pH value conditioning agent, 0.50 to 4.00% of an antirust agent, 0.50 to 2.00% of a bacteriostatic agent, 6.00 to 18.00% of an anionic surfactant, 1.00 to 5.00% of a nonionic surfactant, 1.00 to 4.00% of a corrosion inhibitor, 4.00 to 15.00% of a base oil, and 40 to 50% of water. The microemulsified cutting fluid possesses excellent rust resistance, lubricating properties, and especially excellent corrosion resistance on aluminium alloy, so that a problem that corrosion resistance of conventional microemulsified cutting fluid on different aluminium alloy processing is poor is solved. The microemulsified cutting fluid is suitable for processing of metal such as aluminium parts and steel parts. The microemulsified cutting fluid contains no toxic chemicals, such as nitrite and hydrozybenzene, which are harmful for human body or the environment, is friendly to the environment, and is high in efficiency.

A aluminium alloy for press casting very thin parts (0.7-1.2 mm) is composed of (by weight) 10.0-14.0 % of silicon, 2.5-4.5 % of copper, 0-2.0 % of nickel, 0-1.5 % of manganese, the total content of nickel and manganese keeps in 0.5-2.0 %. The alloy castability (mold filling ability) increases by more than 20 %. Under high pressure press casting, 0.7-1.2 mm wall casting can be made and can be used as casing of 3C products, also the cost is reduced by more than 20-30 % compared with magnesium alloy.

The invention discloses a high-light anode oxidation and electrophoresis process of aluminium alloy, which is rarely used in the industry of all aluminum material factories and is most suitable for batch production. The high-light anode oxidation and electrophoresis process comprises the following procedures of: (1) high-light treatment of the aluminium alloy; (2) generation of an oxidation film by anode oxidation; (3) coloring; (4) high-temperature hole sealing; and (5) electrophoresis and curing procedures. The high-light anode oxidation and electrophoresis process disclosed by the invention has the advantages that for the aluminium treated by the process, the color is bright without large change, a layer of electrophoresis paint film is coated on the surface, the glossiness is bright, the corrosion resistance and the weather resistance are optimal, the decorative effect is optimal, the aluminum alloy can be arranged outdoors for sunning, the acid and alkali resistance is high, and the process control is easy in the production process.

The invention provides a grain refinement machining process of a hard aluminium alloy cast ingot, belonging to the technical field of aluminum alloy machining. The grain refinement machining process comprises the following steps of: blending, smelting, stirring, temperature measuring, sampling, component and temperature regulating, turning down, refining (namely primary purifying), standing, online adding of Al-Ti-B wires, online degassing and deslagging (namely secondary purifying), two-stage filtering, hot-top casting at a same level, and homogenizing of the cast ingot, thus completing grain refinement machining of the hard aluminium alloy cast ingot. The hard aluminium alloy cast ingot machined by the machining process has a better heat deformation property, is high in strength through online quenching during extruding, has better welding and corrosion resistance properties and a certain stress corrosion resistance property, and especially has a high shock absorption capacity as well as a good folding resistance property.

A production process of aluminium alloy specially used for automobile hubs in salt damage regions. The aluminium alloy comprises the following components by weight: 6.8-7.4% of Si, 0.32-0.40% of Mg, 0.08-0.13% of Ti, not more than 0.13% of Fe, not more than 0.01% of Zn, not more than 0.03% of Ca, not more than 0.01% of Cu, not more than 0.05% of Mn, not more than 0.01% of P, not more than 0.05% of Ni, not more than 0.05% of Cr, not more than 0.01% of Sn, not more than 0.05% of Pb, and the balance of raw aluminum ingots. The process comprises the following steps: melting the components of Si, Ti, Fe, Zn, Ca, Cu, Mn, P, Ni, Cr, Sn, Pb, and raw aluminum ingots in a melting furnace according to the weight ratios, when the temperature reaches 750-820 DEG C, uniformly stirring the melt, adding Mg according to the weight ratio, uniformly stirring, removing slag to obtain aluminium alloy melt; introducing the aluminium alloy melt into a standing furnace, spraying a refining agent with argon or nitrogen into the aluminium alloy melt for refining; when the refining process completes, removing slag, allowing the aluminium alloy melt to stand in the standing furnace for 30 min; performing casting molding of the aluminium alloy melt after standing by an automatic casting machine, stacking and packaging to obtain the aluminium alloy specially used for automobile hubs in salt damage regions.

The invention provides an Al-Fe-Os-RE aluminium alloy and a preparation method thereof. The preparation method comprises the following steps of: a) casting an aluminium alloy cast ingot; b) homogenizing the aluminium alloy cast ingot and rolling the homogenized aluminium alloy cast ingot to obtain an aluminium alloy rod material; c) intermittently annealing the aluminium alloy rod material obtained in the step b); and d) aging the aluminium alloy rod material obtained in the step c), thus obtaining the aluminium alloy. The invention also provides a power cable. The aluminium alloy has better overall performances by selecting and controlling the added elements and adopting a reasonable preparation process.

The invention relates to an aluminium alloy with high strength and excellent cutting property and a preparation method thereof, and belongs to the technical field of alloys. The product, namely the aluminium alloy with high strength and excellent cutting property, is obtained through slagging-off, alloy preparing, refining, standing, casting, homogenizing, extruding and carrying out artificial aging after melting an aluminium ingot. According to the invention, by means of proportioning alloy composition, controlling a production process and the like, the alloy bar can achieve the tensile strength of greater than or equal to 280MPa, the regulated non-proportional extension strength of greater than or equal to 250MPa, the elongation A of greater than or equal to 10 percent and the HV hardness of 98 to 108; the cutting property of the material is greatly improved.

The invention discloses a low porosity closed cell foam aluminum alloy preparation method comprising the steps of, (1) heating aluminium alloy to melting, (2) charging 0.5-5% thickener, stirring the aluminium alloy to increase thickness, (3) charging foaming agent 0.2-5.0 wt% of aluminium alloy, stirring homogeneously, (4) stirring 10s-180s again, (5) extracting the stirring paddle, (6) subjecting the thermal insulated foam aluminium alloy flux to simultaneous cooling. The invention also discloses a closed cell foam aluminium alloy with low factor of porosity.

The invention provides an Al-Fe-Rh-RE aluminium alloy and a preparation method thereof. The preparation method comprises the following steps of: a) casting an aluminium alloy cast ingot; b) homogenizing the aluminium alloy cast ingot and rolling the homogenized aluminium alloy cast ingot to obtain an aluminium alloy rod material; c) intermittently annealing the aluminium alloy rod material obtained in the step b); and d) aging the aluminium alloy rod material obtained in the step c), thus obtaining the aluminium alloy. The invention also provides a power cable. The aluminium alloy has better overall performances by selecting and controlling the added elements and adopting a reasonable preparation process.

The invention provides a method for preparing an aerospace-level vanadium-aluminium alloy. The method comprises the following steps: uniformly mixing vanadium pentoxide, metallic aluminium and a coolant, putting into a smelting furnace, igniting and smelting to obtain a vanadium-aluminium alloy with the vanadium content of 75-85wt% and slag; adding the vanadium-aluminium alloy obtained through the smelting into a vacuum induction furnace, adding aluminum, remelting and refining to obtain the aerospace-level vanadium-aluminium alloy with the vanadium content of 45-55wt%, wherein the mass ratio of the added aluminum to the added vanadium-aluminium alloy is 0.45-0.77. The method provided by the invention has the advantages that the aerospace-level vanadium-aluminium alloy can be obtained; the smelting furnace does not need to be knotted and only simple filling is carried out by using corundum fine powder with the particle size less than 5mm, the furnace body can be protected and the requirements for smelting the vanadium-aluminium alloy through aluminothermy are satisfied, so that the production cost is reduced and the method is simple in operation.

A thermal bend actuator, having a plurality of elongate cantilever beams, is provided. The actuator comprises: a first active beam for connection to drive circuitry, the first beam being defined by a tortuous beam element, the tortuous beam element having a plurality of contiguous beam members; and a second passive beam mechanically cooperating with the first beam. When a current is passed through the first beam, the first beam expands relative to the second beam, resulting in bending of the actuator. The plurality of contiguous beam members comprises a plurality of longer beam members extending along a longitudinal axis of the first beam, and at least one shorter beam member extending across a transverse axis of the first beam and interconnecting longer beam members.

Aluminum alloy in the form of a sheet, plate or extrusion, having a composition in the range (in weight %):and said aluminum alloy is provided in an aged condition.

A method for forming an article by metal injection moudling of aluminium or an aluminium alloy. The method comprises the steps of forming a mixture containing an aluminium powder or an aluminum alloy powder or both and optionally ceramic particles, a binder, and a sintering aid comprising a low melting point metal. The mixture is injection moulded and the binder is removed to form a green body. The green body is sintered. The sintering is conducted in an atmosphere containing nitrogen and in the presence of an oxygen getter.

This invention provides a method for molding aluminum alloy. The method comprises: applying more than 1% processing tension on 6000 series aluminum alloy, and heating at 50-150 deg.C for aging and hardening reclamation treatment. Since the moldability of aluminum alloy is reclaimed, thus the aluminum alloy can be molded at ambient conditions. By using this method, the moldability of 6000 series aluminum alloy after aging and hardening at room temperature can be reclaimed.