12results about How to "Good castability" patented technology

The invention provides a preparation method of a high-strength and high-toughness aluminum alloy, which comprises the following steps: S1) proportioning according to the components of the aluminum alloy, and smelting to obtain an initial melt; s2) carrying out melt purification on the initial melt; s3) carrying out on-line two-stage filtration on the melt obtained in the step S2), and then carrying out grain refinement; s4) casting the melt obtained in the step S3); s5) performing soaking treatment on the cast ingot obtained in the step S4); and (S6) the aluminum alloy obtained in the step (S4) is subjected to aftertreatment, and the high-strength and high-toughness aluminum alloy is obtained. In the process of preparing the high-strength and high-toughness aluminum alloy, through raw material control, melt purification, grain refinement, matching of a proper casting process and specific soaking treatment, a cast ingot with a high-purity melt, excellent casting performance and a uniform and fine structure is obtained; and therefore, the aluminum alloy material with high strength, high toughness, excellent corrosion resistance and low cost is obtained.

The invention belongs to the field of cement pouring, and particularly relates to cement pouring equipment for cement product production, which comprises a base, a supporting column is fixedly connected to the top of the base, a top plate is fixedly connected to the top of the supporting column, a pouring structure is arranged on the top plate, a through groove is formed in the top plate, and the pouring structure comprises a motor I; a first motor is fixedly connected to the outer wall of the top plate, a threaded rod is fixedly connected to the output end of the first motor, a movable block is in threaded connection to the outer wall of the threaded rod, and a stirring box is fixedly connected to the top of the movable block. According to the cement pouring equipment for cement product production, a bidirectional threaded rod is driven by a third motor to rotate, so that two sets of clamping plates move oppositely, pouring molds of different sizes can be rapidly clamped, then the bidirectional threaded rod rotates reversely through reverse rotation of the third motor, clamping of the pouring molds is conveniently and rapidly relieved, and the production efficiency is improved. The working efficiency is improved, and the stability in the pouring process is ensured.

The invention discloses a preparation method of a near-net forming refrigerant runner plate, which comprises the following steps: A, aiming at a refrigerant runner plate with a complex structure, designing a mold, a salt core structure and a combination mode of the mold and the salt core structure on the basis of a casting method; b, preparing an alloy raw material, a mold and a salt core, preheating and assembling the mold and the salt core, and casting a melt obtained by melting the alloy raw material to obtain a blank; and C, the blank is subjected to aftertreatment, and the refrigerant runner plate is obtained. According to the invention, the casting process of the runner plate is effectively improved, so that the near-net forming of the runner plate is realized, the machining workload is obviously reduced, the preparation process is shortened, and the cost is reduced.

This invention belongs to the field of aluminum alloy technology, specifically a modified ZL303 aluminum alloy and its manufacturing method. The ZL303 aluminum alloy is modified using a Zr-based amorphous nanocrystalline alloy modifier. By modifying the ZL303 aluminum alloy, its hardness and toughness are improved while maintaining its good corrosion resistance and casting performance. The modified ZL303 aluminum alloy obtained by this invention has an average grain size of 8.0–8.5 μm, a Vickers hardness ≥75 HV, a tensile strength ≥220 MPa, and a fracture toughness ≥70 kg·mm². ‑3 / 2 .

The invention discloses a high-toughness and high-corrosion-resistance extrusion casting aluminum alloy material which comprises the following components in percentage by weight: 6%-10% of Si, 0.4%-0.6% of Mg, 0.8%-1.4% of Cu, 0.08%-0.15% of Fe, 0.04%-0.12% of Ti, 0.015%-0.030% of Sr, 0.02%-0.15% of Cr, 0.02%-0.09% of Zr, less than or equal to 0.1% of impurities and the balance of Al, and the weight ratio of Ti to Zr is Ti + Zr < lt >. 0.18%, 0.1% lt; cr + Zr [lt]; and 0.2%. According to the aluminum alloy material, the strength and toughness are improved by reasonably proportioning Cu and Mg elements, the structure compactness is optimized by combining an extrusion casting process, an oxidation film is thickened by accurately adding low-content Cr and Zr elements, the strength and the corrosion resistance are synergistically improved, the blank in the aspect of optimizing the comprehensive performance of AlSiMg alloy in the prior art is filled up, and the aluminum alloy material is suitable for being used in the field of aluminum alloy production. And the harsh requirements on materials in the high-end manufacturing field are met.

The application relates to an aluminum-silicon-strontium-titanium-zirconium alloy and an aluminum-silicon-strontium-titanium-zirconium alloy welding wire prepared from the same and belongs to the technical field of aluminum alloy welding wires. The alloy components and the weight percentages are as follows: Si: 4.50-5.50%; Mg: 0.01-0.05%; Sr: 0.02-0.50%; Ti: 0.01-0.15%; Zr: 0.01-0.20%; La: 0.01-0.10%; Ce: 0.01-0.15%; C: <0.0010%; the balance is Al and inevitable impurity elements, and the content of the inevitable impurity elements is less than 1.0 wt%. The application further discloses an aluminum-silicon-strontium-titanium-zirconium alloy welding wire prepared from the aluminum-silicon-strontium-titanium-zirconium alloy. Through control of the alloy components and the content of each component, the welding wire formed by the application has excellent performance in alloy mechanical properties, casting performance, grain refinement and welding quality.

The invention belongs to the technical field of valve rod guide sleeve fixing device manufacturing, and particularly relates to an auxiliary mounting device for valve rod guide sleeve inner hole honing, which comprises a base and a middle block, a first through hole is formed in the center of the base, a second through hole is formed in the middle block, the middle block is fixed on the upper surface of the base through a first bolt, and the first through hole and the second through hole are coaxial; the inner diameter of the first through hole is larger than that of the second through hole, and at least two screw holes are axially formed in the upper surface of the middle block around the second through hole; according to the product characteristic that the four unthreaded holes are formed in the large outer circle of the valve rod guide sleeve, the auxiliary mounting device for honing the inner hole of the valve rod guide sleeve is designed, so that when the auxiliary mounting device is used, the valve rod guide sleeve is locked on the middle block in the mode that second bolts penetrate through at least two unthreaded holes in the valve rod guide sleeve in a penetrating mode; and the valve rod guide sleeve can be honed conveniently through a horizontal turning procedure before honing and a vertical honing machine.

The invention discloses an Al Si7Cu0. 5Mg alloy for high-performance casting of an automobile engine and a production process of the Al Si7Cu0. 5Mg alloy, and relates to the technical field of aluminum alloys. The alloy is composed of, by mass, 6.5%-7.5% of silicon, smaller than or equal to 0.15% of iron, 0.48%-0.55% of copper, 0.05%-0.10% of manganese, 0.37%-0.45% of magnesium, 0.10%-0.15% of titanium, 0.015%-0.020% of strontium, smaller than or equal to 0.07% of zinc and the balance aluminum, and impurities contained in the alloy are smaller than 0.3%. The content of the element magnesium is reduced, and the harmful effect of the element magnesium on the toughness and thermal stability of the alloy is reduced; the content of silicon is adjusted, and the casting performance and the cutting performance of the alloy are improved; through strontium modification, the alloy has high density, and the strength and toughness of the alloy are improved; by adding the titanium element, the alloy strength and the higher high-temperature-resistant effect are improved, and an alloy ingot prepared from the alloy has excellent casting performance, mechanical performance, physical performance, corrosion resistance and machining performance; the production process is simple, the process is simple and efficient, and mass production is facilitated.

The present invention is applicable to various devices such as home appliances, and relates to an aluminum alloy, a method for manufacturing same, and parts using same. The present invention relates to an aluminum alloy for die casting, comprising 2.0 wt% to 6.0 wt% of calcium (Ca), 1.0 wt% to 3.0 wt% of manganese (Mn), 0.1 wt% to 1.0 wt% of silicon (Si), 0.1 wt% to 0.5 wt% of iron (Fe), balance aluminum (Al), and inevitable impurities, wherein the grain size of the aluminum alloy is 10 µm to 50 µm.

The invention provides a high-thermal-conductivity TiB2 / Al-Ce-Ni-Fe alloy and a preparation method and application of the high-thermal-conductivity TiB2 / Al-Ce-Ni-Fe alloy, and in the high-thermal-conductivity TiB2 / Al-Ce-Ni-Fe alloy, the element Ce accounts for 5.0-7.0 wt.%; the content of the element Ni is 0.01 to 2.5 weight percent; the percentage by weight of the element Fe is 0.20 to 0.50 percent; the content of TiB2 is 0.01 to 2.1 wt.%; and the balance of Al. The TiB2 exists in the form of ceramic particles. The invention further discloses a preparation method of the TiB2 / Al-Ce-Ni-Fe alloy. The thermal conductivity of the TiB2 / Al-Ce-Ni-Fe alloy ranges from 186 W / (m.K) to 200 W / (m.K), the requirement for high thermal conductivity of aluminum alloy needed in the heat dissipation field can be met, and the TiB2 / Al-Ce-Ni-Fe alloy has very good application prospects and large-scale popularization potential in the heat dissipation fields of communication base stations, micro-channel radiators and the like.

The application provides a high-casting-performance beryllium aluminum alloy and a preparation method thereof, and belongs to the technical field of alloy materials.The preparation method comprises the following steps: preparing materials according to the weight percentages of Be ingots, Al ingots, Ag ingots, Co sheets, Si and La metals; placing the Ag ingots, the Co sheets, the Si and the La metals at the bottom of a crucible, then sequentially placing the Al ingots and the beryllium ingots into the crucible, refining, and obtaining a melt; uniformly stirring the melt, then gradually cooling the melt to a pouring temperature, then pouring the melt into a prefabricated ceramic mold shell, and standing for 3-5 minutes in a furnace and cooling outside the furnace.The beryllium aluminum alloy has a uniform and dense structure, good fluidity, high casting performance, and is easy to be cast into a shape, and has fewer casting defects.