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2021-06-24 23:31
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Related knowledge of aluminum alloy die-casting mold:
1. Excellent machining performance: fast-cutting extruded zinc-aluminum alloy is easy to be cut (turned, milled, drawn, planed, drilled, etc.), and its comprehensive performance is close to lead brass, which is known as "white brass". The alloy can be cut with a higher cutting speed and a deeper amount of cutting, the chips are easy to break, the tool wear is equivalent to 60/40 brass, the finish and precision of the processed parts are high, and the processing efficiency reaches that of lead brass. More than 75%, parallel and unobstructed with the existing brass processing technology. The blank parts do not need special treatment, and can be directly electroplated or passivated.
2. The surface treatment effect of Qingdao aluminum alloy castings is good: zinc aluminum alloy die-casting is suitable for a variety of electroplating processes, such as copper plating, nickel plating, chromium, tin, silver and ternary alloys, etc. The finished parts have no pits, bubbles, and surface smoothness. It is very similar to the finished copper plating. There is no obvious corrosion in the neutral salt spray test for 48 hours, and the plating yield can reach more than 98%.
3. Good electrical conductivity: electrical conductivity is similar to H62, electrical conductivity> 28% (IACS), more than ordinary lead brass such as H59, zinc aluminum alloy die casting has broad application prospects in electronics, electrical, electrical and other industries.
4. High cost performance: The material price is only about 60% of HPb59-1, and the material proportion is only about 70% of HPb59-1. Using fast-cutting extruded zinc-aluminum alloy materials, the cost of the same finished workpiece is only 40% of the cost of lead brass. In the harsh economic environment in 2009, the large-scale promotion and application of free-cutting extruded zinc-aluminum alloys will greatly alleviate the financial pressure on enterprises and enhance comprehensive product competition.
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