Smelting Zinc Alloy Correctly
Strictly control the composition of zinc alloy. The smelting of die-casting zinc alloy is an important part of die-casting alloy. Manufacturers who have the conditions should preferably use a centralized melting furnace to melt the zinc alloy, so that the alloy ingot and the return material are evenly mixed, and the flux can be used more effectively, so that the composition and temperature can be maintained. Uniform and stable. If the material is directly charged in the hot room machine melting pot, the ground and the return material should be kept clean. Zinc alloy products mixed with impurities will cause severe intergranular corrosion. The main components and impurities in zinc alloy have a great influence on die casting products, and should be strictly controlled and mastered. Aluminum is its main component, which can reduce the melting point, improve casting properties, and increase alloy strength. Copper can increase hardness and strength, and magnesium can inhibit Intergranular corrosion of zinc alloy due to impurities, the specific content of iron has little effect on the alloy, while other impurities are harmful and may cause intergranular corrosion. Therefore, the alloy composition is reasonably controlled to prevent impurities from being mixed into zinc alloy die-casting. one of the keys.