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Talk about the characteristics and precautions of precision die casting
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Features of precision die castings:Dimensional accuracy, surface accuracy, thin wall: castings have high dimensional accuracy, generally equivalent to grade 6 ~ 7, even up to grade 4; surface finish is good, generally equivalent to grade 5-8; strength and hardness are higher, and the strength is generally higher than sand type Casting is increased by 25 ~ 30%, but the elongation is reduced by about 70%; the size is stable and the interchangeability is good; thin-walled complex castings can be die cast. For example, the minimum wall thickness of current zinc alloy die castings can reach 0.3mm; aluminum alloy castings can reach 0.5mm; the minimum cast hole diameter is 0.7mm; the minimum pitch is 0.75mm.
Mass production: The machine has high productivity and can be multi-cavity. For example, the domestic JⅢ3 horizontal cold air die-casting machine can die-cast 600 to 700 times in an average of eight hours, and the small hot-chamber die-casting machine can die in an average of 3000 to 7000 times every eight hours; The die-casting model has a long service life. Once die-casting model and die-casting alloy, the service life can reach hundreds of thousands of times, even millions of times; easy to realize mechanization and automation.
Economic benefits: Due to the precise dimensions of the die-casting parts, the surface is smooth and so on. Generally, it is used directly without mechanical processing, or the processing volume is very small, so it not only improves the metal utilization rate, but also reduces a lot of processing equipment and working hours; the casting price is easy; the combination of die casting can be used to other metal or non-metal materials . It saves both assembly time and metal.
Surface treatment: easy to do various surface treatments, such as electroplating, plastic spraying, etc.
Precautions for precision die castings:
Due to the high speed of the liquid metal filling cavity and the unstable flow state during die casting, the general die casting method is used. Zinc alloy die castings are prone to air holes and cannot be heat treated;
For castings with complex recesses, die casting is more difficult;
It is not suitable for small batch production, the main reason is that the manufacturing cost of die casting mold is high, the production efficiency of the die casting machine is high, and the small batch production is not economical.
I believe that each die-casting industry must first know what material is used for die-casting products. Only by selecting the appropriate material can the die-casting product reach its own quality.
After reading the above, you should be clear about "Characteristics and Precautions of Precision Die Castings". Desso Hardware Electronics is a die-casting factory that has made precision die-casting parts for 13 years. When we produce precision die-casting products, we will encounter various problems. The problem, rich experience, is a good manufacturer trusted by the majority of users.
At present, thousands of precision die-casting related products have been displayed on our official website for users to check. Each product is carefully cast by Desso people. The product has passed ISO certification and meets international environmental protection requirements. Hurry up and contact us to place an order. Accept the mass customization service of precision die-casting products. We will do our best to meet your needs.
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