How can die casting plants improve the quality of zinc alloy die casting?
Release time:2024-01-06
How can die casting plants improve the quality of zinc alloy die casting?
1, choose the right die casting machine
Die casting machine is the key equipment of die casting production, its performance determines the quality of die casting objectively. The correct choice of die casting machine is crucial to ensure product quality, improve production efficiency and reduce production costs. The performance of die casting machine depends on two aspects.
Sufficient clamping force: prevent the peak of metal flow pressure, flash, flying material.
Sufficient injection capacity: ensure that the die casting does not cause overheating or a large amount of overflow, while ensuring that the machine has sufficient capacity to transport enough molten metal, and in a short time at the required speed, fill the cavity.
2, die casting mold flow path design
Because the zinc alloy must be filled in the cavity in a short time, the design and production of the die casting mold and its runner system are much more demanding than the plastic mold. The flow channel system is to guide the metal solution to fill the cavity in a certain way, which plays an important role in the flow direction of the metal liquid, pressure transfer, filling time, exhaust conditions and mold temperature distribution. At the same time, it is also an important factor to determine the quality of the die casting, the flow channel system design principle of the die casting mold should be polymerization from the gooseneck pipe to the gate, avoid sharp corners, and the process diameter surface should be smooth in order to reduce the resistance and maintain the flow speed of the liquid zinc alloy.
3, die casting mold temperature
It is very important to control the surface temperature of zinc alloy die casting for the production of high quality zinc alloy die casting. Improper mold temperature will lead to zinc alloy die casting size instability, in the production process of casting deformation, thermal pressure, sticky mold, surface depression, internal shrinkage and hot bubbles and other defects. When the mold temperature difference is large, it has different degrees of influence on the variables in the production cycle, such as filling time, cooling time and spraying time, so the zinc alloy die casting die temperature machine is an important tool to improve the quality of zinc alloy die casting. Die casting mold temperature machine can improve product quality and production efficiency, and reduce the damage of high temperature metal alloy liquid to the mold.
4, zinc alloy material
The main components and impurities in zinc alloy have great influence on the quality of die casting parts, 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 produce intergranular corrosion. Therefore, reasonable control of alloy composition to prevent impurities from mixing is also the key to zinc alloy die casting.
5, correct operation and maintenance of the machine
Even if there is a zinc alloy casting machine with excellent performance, a reasonable mold, a high temperature control precision, a good zinc alloy material, such as poor management and improper operation, it is impossible to produce high-quality products efficiently. Therefore, operators need to be properly trained and familiar with the performance and operation methods of various equipment.
To sum up, we can improve the quality of zinc alloy die casting mold from the above five aspects. Huayin Die casting has 18 years of experience in zinc alloy die casting, providing customers with high-quality die casting parts to meet the needs of consumers
