How to make glass in dewaxing casting

Dewaxing casting is one of the glass manufacturing processes, and its main process is to heat the glass to a high temperature, and fluidly enter the prefabricated mold to form. Because the mold shell is made by removing the wax mold after heating, it is called dewaxing casting. In the late Neolithic period more than 5,000 years ago, the craftsmen in ancient China used dewaxing casting techniques to make bronze. At that time, the craftsmen first carved the beeswax into a wax mold of the required shape according to the plasticity and thermal volatilization characteristics of the beeswax, then wrapped the clay, and then wrapped it in the wax mold. A small hole was reserved, dried and baked to make The wax mold is vaporized and volatilized, and then made into a ceramic shell, which is melted to form a small hole.

The dewaxing casting process is developed from the ancient casting technology. In the late Neolithic period more than 5,000 years ago, the craftsmen in ancient China used dewaxing casting techniques to make bronze. At that time, the craftsmen first carved the beeswax into a wax mold of the required shape according to the plasticity and thermal volatilization characteristics of the beeswax, then wrapped the clay, and then wrapped it in the wax mold. A small hole was reserved, dried and baked to make The wax mold is vaporized and volatilized, and then made into a ceramic shell, which is melted to form a small hole. In this process, the molten metal is injected into the shell along the small hole, and after cooling, the shell is broken to obtain the required metal casting billet. The basic principles of contemporary dewaxing casting process are no different, just more complicated and precise. This situation is mainly reflected in the stricter requirements for wax mold modeling accuracy. In modern technology, the acquisition of wax mold is not only the direct engraving of wax, but also the female mold can be obtained by molding the metal original mold (plate) with silica gel, and then the wax mold can be obtained by injecting wax with the silicone female mold. The cast material is no longer clay, but cast plaster. This product is far more exquisite than ancient casting.