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Do you know the cycle of die casting molds?

2021-06-18

      Metal die-casting is an advanced technology with less and no cutting. It has the characteristics of high consumption efficiency, saving original materials, reducing consumption costs, good casting performance, and high precision. It is widely used. Among them, the largest market for die-casting castings is the automotive industry. As humans pay more and more attention to sustainable development and environmental maintenance, automotive lightweighting is the best way to achieve high efficiency, safety, energy saving, warmth and environmental protection.


  Using aluminum alloy instead of traditional steel to make cars can reduce the weight of the whole car by about 30%. Because the die-casting mold is to die-cast molten metal at 400~1,6000C under high pressure (30~150MPa). During the molding process, the mold is periodically heated and cooled, and is scoured and corroded by hot metal sprayed at high speed.


   Mold materials require high thermal fatigue resistance, thermal conductivity, and good wear resistance, corrosion resistance, and high temperature mechanical properties. It is still difficult to meet the ever-increasing performance requirements only by the application of mold materials. Various surface treatment technologies must be applied to the surface treatment of die-casting molds to meet the requirements for high efficiency, high precision and long life of die-casting molds.


   Die-casting mold failure method When the die-casting mold is in contact with high-temperature liquid metal, it not only has a long time of heating, but also the heated temperature is higher than that of forging dies. The temperature of die-casting non-ferrous metals is 300~800℃, and the temperature of die-casting ferrous metals is above 1000℃. It also received a very high pressure of 30-150 MPa, and was subjected to wear and corrosion caused by repeated heating and cooling and high-speed scouring of liquid metal activities.

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