Pay attention to details in the production of metal die casting products

In recent years, there are more and more alloy die-casting manufacturers. In the era of rapid technological development, machinery and equipment are constantly being updated. There are more and more mechanical castings in short supply, so there are so many die-casting manufacturers. At present, the more commonly used Die Casting Products in the industry are Aluminum Die Casting products, Zinc Alloy Die Casting products and Magnesium Die Casting products.

The main defect is the protruding vesicles on the mold surface. After polishing or processing, the fuel injection or electroplating is exposed.

The cause of blistering defects in die castings is that the pores are mainly caused by pores and shrinkage mechanisms, and the pores are often round and irregular. The cause of the porosity is that during the filling and solidification process of the molten metal, the inner surface or inner hole of the Die Casting part is invaded by the volatile gas of the coating produced by the intrusion of gas.

When the gas in the cavity is emitted by the paint, and the gas is solidified by the alloy. When the mold is exhausted, the pores formed in the die casting can remain.

Zinc Alloy Die Casting products are widely used in various aspects such as decoration, furniture accessories, architectural decoration, bathroom accessories, lighting accessories, toys, tie clips, belt buckles, metal buckles, and high-demand casting surface quality, which requires a good surface treatment. A common defect of zinc alloy die casting part is surface blistering.

The reason for the shrinkage is that during the solidification of the molten metal, the liquid shrinks due to the decrease in volume or final solidification position.

The uneven thickness of the die casting part or the local overheating of the die casting part causes the solidification of certain parts to be slow, and the volume shrinks and the surface is sunken.

Since the pores and shrinkage cavities castings are surface treated, the pores can enter the water baking varnish and bake after plating. The quality of the die castings depends on the precision of the processing equipment. Cause blistering on the surface of the casting.

If you want to know about die casting related content or customized die-casting parts, please contact us to: info@sczyltd.com