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Zhaoqing OLYM Metal Products Co.,Ltd

Contacts Info.
Yongan Town,Dinghu district Zhaoqing City,Guangdong Province,China

Doing layer is important step in investment casting

In the process of investment casting ,doing layer is the most important step. We usually do four layers and at last immersed in slurry then wait them become dry and can step into the next process .
Notice there is a key step is choose the material when do the surface layer which should ensure the quality of casting itself. We OLYM always use two material,one is compound crystal and the other is corundum. Corundum is much more white than compound crystal and large castings always use corundum in order to avoid crack. Both are very thin.

Second layer is use another mullite sand is still thin but Larger particles third and four layers uses zircon which has larger particles than mullite sand ,at last immerse in slurry(zircon)