In our daily life, zinc die casting is a very popular die casting product, but the products are naturally good and bad. Some die castings will have some unavoidable defects. Let's take a look at them today.
Since the boundary marks between the regions of different metal materials are significant, the defects of the water surface are very easy to be found under the optical microscope. When an area condenses rapidly, the dendritic structure in the early stage of injection is much more detailed than the post-condensed surface. Generally, very cat-like currents are very easy to confuse with the defects of the water surface. The difference can be observed with an optical microscope. If there are many patterns on the surface of the casting, it is generally all water flow. If the return rate of the two areas on the surface of the casting is not the same, it is generally a defect of the water surface.
Of course, lead die casting may also have the same problem, so we need to be extra careful whether it is processing or post-production. chinaweilong.cn