89 results about "6005 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 present invention relates to a minicar engine cylinder cap low-pressure casting aluminium alloy, and its main chemical components are Si, Cu and Mg, in particular Cu and Mg control is better, and its harmful impurity element control is serious, and after said alloy is undergone the processes of modification treatment by means of modification agent and (T6) heat treatment, its tensile strength QbMPa is greater than or equal to 300, HB is about 110, and said alloy has enough strength and rigidity and good size stability, and said alloy can meet the requirements for miniature car engine cylinder cap low-pressure casting process and mechanical working process.

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.

A aluminum alloy material consists of Si 9.5-11.5wt%, Cu 2.0-3.0wt%, Mg 0.3-0.4wt%, mixed rare earth RE 0.1-0.3wt%, Mn is less than or equal to 0.5, Zn is less than or equal to 1.0, Fe is less than or equal to 1.0, Al residue. The mixed rare earth RE consists of La 5-80wt%, Ce 5-40wt%, Nd 1-20wt%, Y 1-20wt%, Pr 1-20wt%. It achieves good flowing, mechanical and cutting machining performance.

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 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 discloses a heat treatment process for a ZL101A aluminium alloy for an automobile wheel hub. The process comprises the following steps of: putting an as-cast blank into a solution treatment furnace for raising temperature, performing solution treatment at a solution temperature, taking the blank out of the solution treatment furnace, quenching the blank, putting the as-cast blank into an ageing treatment furnace for raising the temperature, performing ageing treatment on the blank at an aging treatment temperature; and after taking the blank out of the ageing treatment furnace, cooling the blank in the air medium. The heat treatment process is characterized in that: the solution treatment temperature is 525 to 550 DEG C; the heat maintaining time during the solution treatment is 60 to 120 minutes; the ageing treatment temperature is 165 to 180 DEG C; and the heat maintaining time during the ageing treatment is 90 to 180 minutes. The heat treatment process organically combines the short-time solution treatment and the short-time ageing treatment and fulfils the aim of low energy consumption and high work efficiency. At the same time, compared with the standard T6 heat treatment process, the heat treatment process can shorten the heat treatment time by over one time and guarantee that an alloy microstructure obtained through the solution treatment and the ageing treatment reaches an ideal state of the standard T6 treatment.

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.

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.

The invention provides an Al-Fe-Hf-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 present invention provides one kind of pressure cast aluminum alloy and its application, and belongs to the field of material science. The pressure cast aluminum alloy consists of Si 4-8 wt%, Mg 1-5 wt%, and Al for the rest. The pressure cast aluminum alloy is applied to produce hard anodized oxide film through the following steps: smelting, pressure casting, modifying mechanically, and forming hard anodized oxide film. The pressure cast aluminum alloy has anodized oxide film with great thickness, high hardness and high corrosion resistance.

The invention discloses a scandium and strontium compound microalloyed high zinc 2099 type aluminium alloy and preparation method thereof. The aluminium alloy is mainly composed of the following elements by mass percent: 2.3-2.57% of copper (Cu), 1.86-1.96% of lithium (Li), 1.14-1.31% of zinc (Zn), 0.269-0.420% of magnesium (Mg), 0.219-0.321% of manganese (Mn), 0.0733-0.08% of zirconium (Zr), 0.0643-0.0943% of strontium (Sr) and 0.0433-0.079% of scandium (Sc), the balance is aluminium (Al) and less impurity elements. The preparation method of the alloy adopts the manufacturing method of intermediate alloy. The invention has simple method, the prepared alloy has low density, high rigidity and good corrosion resistance, and the invention can meet the requirement of the national aviation and weaponry fields to high performance aluminium alloy.

The invention relates to a 2xxx aluminium alloy for aviation and a processing method thereof; in the alloy, Mg is 1.3-1.5wt%, Cu is 3.5-4.05wt%, Si is less than or equal to 0.10wt%, Fe is less than or equal to 0.10wt%, Mn is 0.5-0.7wt%, Cr is less than or equal to 0.10wt%, Ti is less than or equal to 0.15wt%, Zr is 0.10-0.15wt%, and Al is the balance; the ratio between Cu and Mg is 2.50-2.70:1.The processing technology is as follows: carrying out homogenized annealing on alloy ingot, namely heating the alloy ingot from room temperature to 490-500 DEG C with the heating rate of 40-50 DEG C / h, preserving heat for 10-30h, then air cooling; carrying out extruding at the temperature of 400-490 DEG C after the homogenized annealing of the alloy ingot to obtain alloy sheet; naturally placing the extruded alloy sheet for above 100h after solutionizing for 495 DEG C / h. The technical proposal of the invention controls the contents of surplus phases in the structure by reasonably adjusting the contents of Cu and Mg in the 2xxx aluminium alloy, and ensures the content of main reinforced phase Al2CuMg, thus providing the materials with better strength and plasticity; scientific technical measures ensure the materials to be provided with better comprehensive mechanical property, thus being the ideal materials for manufacturing aviation parts.

The invention provides an Al-Si-Mg cast aluminium alloy for pressure casting and a preparation method thereof. The Al-Si-Mg cast aluminium alloy for pressure casting comprises the following components according to mass fraction: Si, Mg, Mn, Ti, B, Sb, Re, Fe, V, C, r, Zr, P, Be and the balance of Al. The Al-Si-Mg cast aluminium alloy for pressure casting has high-strength and high-toughness mechanical properties, and the mechanical property of a pressure casting test bar can reach the followings: casting state tensile strength (Sigma): 230-310 MPa, the yield strength (Sigma<0.2>): 115 to 160 MPa, and the percentage of elongation (Delta): 5.5 to 14.5. The Al-Si-Mg cast aluminium alloy for pressure casting has an excellent comprehensive mechanical property, particularly an elongation percentage, which is 1.5 times of the maximum value 3.5 percent stipulated in all material standards. Further, the Al-Si-Mg cast aluminium alloy is also excellent in welding performance and suitable for combined welding of castings.

In order to improve the defect that the interface of a Zn-Al brazing filler metal and an Al matrix has no reaction or the reaction is not uniform (limited to a corrosion section and part crystal boundary), the invention discloses an aluminium matrix composite, a low-melting-point Zn-Al-Mg ternary active brazing filler metal (comprising 3-10% of Al, 2-7% of Mg and the balance of Zn, wherein the corresponding melting range is 337-475 DEG C) and a low-frequency low-amplitude reciprocating friction assistant low-temperature active soft brazing method. The low-temperature active soft brazing method is used as the other auxiliary method under the low-temperature working condition, when the low-frequency low-amplitude friction is applied, and the improvements on the liquid-phase liquidity, the striping effect and the wetting property are more notable. The low-frequency low-amplitude friction assistant low-temperature active soft brazing method comprises the following steps of: presetting brazing filler metal, then pressurizing and heating, canceling the pressure until the temperature is 330 DEG C, sequentially heating until the temperature is 400-550 DEG C, performing heat preservation and leading in the low-frequency low-amplitude friction. According to the method, a soldering flux is not needed, the brazing filler metal prematurity loss is avoided, and no obvious corrosion and / or ceramic grain prejudiced collection is caused; and the brazing filler metal uniformly infiltrate, the diffusion required time is shortened, and protected gas is not essential.

The invention provides an aluminium alloy material. The aluminium alloy material is composed of, by mass, 5.5 to 8.5% of silicon, 0.1 to 0.4% of magnesium, 0.01 to 0.2% of boron, chromium<0.05%, 0.05 to 0.5% of iron, strontium<0.1%, and aluminium and inevitable impurities, wherein the content of each impurity element is less than 0.05%. The aluminium alloy possesses high heat-conducting properties, and excellent forming properties, and mechanical properties; thermal conductivity is higher than 140W / m.k under common pressure casting conditions; thermal conductivity is even higher than 150W / m.k under gravity casting or extrusion casting conditions; the aluminium alloy can be applied to the field of mobile phone product and communication product, can be used for solving problems in the prior art that thermal conductivity properties of materials used in mobile phone products and communication products are poor, product heat dissipation performance is poor, and severe heating phenomenon is caused. The invention also provides an aluminium alloy shaped part prepared from the aluminium alloy, and a preparation method of the aluminium alloy shaped part.

The invention relates to a high-strength easy-cutting aluminium alloy. The invention is characterized in that the aluminium alloy is an aluminium-base alloy, containing bismuth, tin, copper, silicon and chromium as alloying elements, and other unavoidable impurity elements. A product produced by the alloy has good easy-cutting capability, excellent mechanical property, excellent corrosion resistance and excellent solderability. The aluminium alloy has low production cost and is equivalent to the prior leady aluminium alloy, so the aluminium has competitive advantages in domestic and foreign markets; The aluminium alloy product can replace partial leady aluminium alloys, thereby not only facilitating the reclamation when the product is consumed completely so as to reduce lead pollution, but also facilitating the expansion of the application field of aluminium alloy products. The aluminium alloy also can replace partial leady easy-cutting aluminium alloys, such as 2011 or 6262 leady aluminium alloy and so on.

The invention provides an Al-Fe-Cr-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.

Disclosed is a 6410 aluminium alloy for bright anodic oxidation. The 6410 aluminium alloy is prepared by smelting 99.99wt. % of high purity refined aluminum, silicon (Si), copper (Cu), magnesium (Mg), titanium (Ti) and carbon (C), wherein by weight, the Si is 0.35wt. %-0.55wt. %, the Cu is 0.08wt. %-0.14wt. %, the Mg is 0.35wt. %-0.70wt. %, the Ti is 0.006wt. %-0.012wt. %, and a trace of the C is equivalent to one twentieth of the content of the Ti; and ferrum (Fe) is equal to or smaller than 0.04wt. %, other impurities are equal to or smaller than 0.01wt. %, the balance is aluminum, the Si, the Cu, the Mg and the Ti are active ingredients, the Fe is a main impurity element, and the weight of the Fe is required to be limited. The preparation method of the 6410 aluminium alloy includes that high purity refined aluminum ingots are subjected to heating and smelting to obtain an aluminum liquid, the Si, the Cu and the Mg are added, flow quantity of the aluminum liquid is set when the aluminum liquid flows through a runner, the aluminum liquid is led to a casting furnace, the Ti and the C are continuously added into the aluminum liquid runner according to the requirement, the aluminum liquid is subjected to refining and filtering by means of on-line argon, and standard aluminum bars are obtained after hot-top casting. The 6410 aluminum alloy can be used for manufacturing bright anodic oxidation automobile exterior trimming parts.

A liquid die forging aluminium alloy and a preparing method thereof are disclosed. Raw materials of the aluminum alloy include 45-50% by mass of waste automobile aluminum wheels, 25-30% by mass of waste automobile aluminum gearbox shells, 10-12% by mass of waste aluminum pop cans and 5-8% by mass of waste aluminum electric wires and cables, with the balance being aluminium ingots. Waste aluminum is adopted as the main raw material. The liquid die forging aluminium alloy having high performance is directly regenerated through optimizing composition of the waste aluminum raw materials, thus increasing the using value of the waste aluminum and reducing the production cost of the liquid die forging aluminium alloy. The produced liquid die forging aluminium alloy has advantages of high strength and good plasticity, can be used as load-bearing structure parts of automobiles, electronic products, mechanical equipment, aviation and spaceflight, weapon equipment, and the like, and has a wide application prospect.

The invention provides an aluminium alloy casting manufacturing process, which has high working efficiency, high product percent of pass and good casting mechanical property. The aluminium alloy casting manufacturing process is characterized by comprising the following steps: melting, insulation, casting, finishing, thermal treatment and abrasive blasting. Dry nitrogen is blown into aluminium alloy liquid by a carbon rod, the nitrogen directly enters the aluminium alloy liquid so as to be capable of better taking away gas of the aluminium alloy liquid and removing the gaseous impurities in the aluminium alloy liquid and reducing the possibility that castings manufactured have air holes; and a holding furnace can control the temperature of the alloy liquid to maintain stable, thus further leading the temperature of the alloy liquid to maintain stable, avoiding the defects that the castings have air holes and sink holes, can not be insufficiently cast, or are unclear in outline, and the like, and improving the product percent of pass.

The aluminum alloy sheet is composed of aluminum alloy containing, by mass%, 0.9-1.5% Mn, >0.50-1.0% Cu, 0.2-0.6% Mg, 0.05-0.50% Si, 0.05-0.60% Fe, Zn regulated to <=0.10% and the balance Al with inevitable impurities. In this manner, this invention provides an aluminum alloy sheet for a battery case which is excellent in strength, formability, laser weldability, stress relaxation property and pressure resistance (bulging resistance) even when the sheet thickness is reduced, and to provide a production method therefor.

The invention discloses a preparation method of a high-strength die casting aluminium alloy, relating to the technical field of aluminium alloy preparation. The method comprises the following steps: heating all the components of the alloy to 110-130 DEG C, then melting aluminium at 740-760 DEG C to obtain molten aluminium and then maintaining the temperature for 6-10 minutes; adding Si and Mn to molten aluminium, melting Si and Mn in sequence, then reducing the temperature to 650-660 DEG C and pressing Mg in the alloy liquid entirely; raising the temperature to 720-750 DEG C, removing dross, then adding the remaining alloy components to the alloy liquid in sequence, maintaining the temperature for 20-30 minutes, then raising the temperature to 770-780 DEG C to carry out refining, maintaining the temperature for 10-15 minutes and removing the dross; cooling an obtained melt to 660-680 DEG C and then pressing the melt in a die preheated to 180-220 DEG C to undergo die casting. The problems that the existing die casting aluminium alloys have lower strength and elongation are solved by adopting the preparation method.

The invention discloses an aluminium alloy section and a manufacture method thereof. The aluminium alloy section comprises the following elementary components of 87.5 percent of Al, 0.4 percent of Si, 1.1 percent of Fe, 0.75 percent of Mn, 0.8 percent of Mg, 2.1 percent of Zn, 4.4 percent of Cu, 0.1 percent of Ni and 0.1 percent of Ti. The manufacture method of the aluminium alloy section comprises the following process steps of: (1) melting an aluminium material, and adding metal components including the Si, the Fe, the Cu, the Mn, the Mg, the Zn, the Ni and the Ti; (2) controlling high temperature for casting to form an aluminium-based solid solution; (3) carrying out purification treatment and modification to enable grains to be refined and reduced to 1 / 20 before treatment and enable the total content to be reduced by 30 percent to obtain antirust hard aluminium alloy; and (4) splicing and molding by adopting a mould to obtain the aluminium alloy section. The aluminium alloy section provided by the invention has favorable corrosion resistance and excellent mechanical strength and is superior to a general section for a common laboratory.

The invention relates to a hot dip coating cast aluminium alloy used for antiseptic treatment of various marine climate-resistant engineering components and a preparation method thereof, wherein the cast aluminium alloy is composed of metal of Al, Zn, Si and the like, nanometer oxide particle intensifier and unavoidable impurities; and the nano oxide particle intensifier is selected from one or two of TiO2 and CeO2. The cast aluminium alloy prepared by the invention can be used as a coating which enables the engineering components to have full decay resistance and scour corrosion resistance.

The invention relates to an aluminum alloy strip or sheet with the following composition (% by weight):Si 0.3-1.0; Fe<1.0; Cu 0.3-1.0; Mn 0.3-2.0; Mg 0.3-3.0; Zn<6.0; Ti<0.1; Zr<0.3; Cr<0.3; Ni<2.0; Co<2.0; Bi<0.5; Y<0.5, other elements <0.05 each and 0.15 total, the remainder being aluminum,coated on at least one face with an aluminum brazing alloy containing 4 to 15% of silicon and 0.01 to 0.5% of at least one of the Ag, Be, Bi, Ce, La, Pb, Pd, Sb, Y elements or mischmetal. Sheets and strips according to the invention can be used particularly for fluxless brazing of heat exchangers.

This invention provides a 6063 aluminum alloy made by cryptomere aluminium ingot. It is constituted by Al, Si, Mg, RE, B elements, quality portion is that Si 0.20~0.6%, Mg 0.45~0.9%, REíœ0.35%, Bíœ0.01%. It also provides a method of preparing the 6063 aluminum alloy, aluminum oxide and titanium oxide compound is added into aluminum electrolyte tank, cryptomere aluminium ingot with titanium quality portion is 0.01~0.20% is generated, alloy element is added to cryptomere aluminium ingot directly from electrolyte tank or by cryptomere aluminium ingot melting to melted 6063 aluminum alloy. Because of its special titanium adding mode, production cost is cheap, as-cast grain is little and uniform, its tensile strength is equal to 6063 aluminum alloy thinned by aluminium titanium boron hardner, and extensibility is increased 20% and better surface capability can get. 6063 aluminum alloy after pressure has good ageing characteristic, it can reach high intension in short time and keep high intension long time, it is hard overaging.