Power Tools Die Casting Part Manufacturers Introduces The Produ

  • The advantages of zinc alloy are low melting point, slower melting and heat preservation, and less heating of the pressure chamber and die casting mold wall. Power Tools Die Casting Part Manufacturers introduces how to reduce defects and manufacture zinc alloy die castings that meet the requirements.

    1. Choose the right die casting machine

    Die casting machine is the key equipment for die casting production, and its performance objectively determines the quality of die castings. The correct choice of die-casting machine is essential to ensure product quality, improve production efficiency, and reduce production costs. The performance of the die-casting machine depends on two aspects.
    (1) Sufficient clamping force: to prevent the highest peak of molten metal flow pressure, flash and fly material.

    (2) Sufficient injection capacity: ensure that the die does not cause overheating or a large amount of overflow during die casting, and at the same time ensure that the machine has sufficient capacity to transport enough molten metal, and fill the cavity at the required speed in a short time.

    1. Die casting mold runner design
      Since the zinc alloy must fill the cavity in a short time, the design and manufacture of the die casting mold and its runner system are much more demanding than the plastic mold. The runner system is to guide the molten metal to fill the cavity in a certain way. It plays an important role in the flow direction of the molten metal, pressure transmission, filling time, exhaust conditions, and mold temperature distribution. It is also an important factor that determines the quality of die castings. The design principle of the runner system of the die-casting mold should be from the gooseneck to the gate to avoid sharp bends, and the flow path surface should be smooth to reduce resistance and maintain the flow speed of the liquid zinc alloy.
    2. Die casting mold temperature
      The control of the surface temperature of the zinc alloy die-casting mold is very important for the production of high-quality zinc alloy die-casting parts. Inappropriate mold temperature will cause the size of zinc alloy die castings to be unstable, and the ejection castings will deform during the production process, resulting in defects such as thermal pressure, mold sticking, surface depression, internal shrinkage and hot bubbles. When the mold temperature difference is large, the variables in the production cycle, such as filling time, cooling time, and spraying time, will be affected to varying degrees. Therefore, zinc alloy is an important tool to improve the quality of zinc alloy die castings. Die-casting mold temperature controller can improve product quality and production efficiency, and reduce the damage of high-temperature metal alloy liquid to the mold.
    3. Zinc alloy material
      The main components and impurities in zinc alloy have a greater impact on the quality of die castings, and should be strictly controlled and mastered. The content of aluminum, copper, magnesium, and iron should be appropriate, and there should be no other impurities that may cause intergranular corrosion. Therefore, reasonable control of alloy composition and prevention of impurities from mixing are also the key to zinc alloy die casting.
    4. Correct operation and maintenance of the machine
      Even if there are zinc alloy die-casting machines with excellent performance, molds with reasonable runners, die-casting mold temperature controllers with high temperature control accuracy, and good zinc alloy materials, it is impossible to produce high-quality products with high efficiency if poor management and improper operation of. Therefore, operators need to be properly trained and familiar with the performance and operation methods of various equipment.


    Through the above introduction, Power Generating Tools Manufacturers hopes that you can simply refer to the content of this article in future use.