1. It has a wide range of applications and is not subject to the complex restrictions of the size, thickness and shape of the castings. Flexible production mode.

2. A wide range of materials are used, scrap metal and renewable resources can be used in large quantities, and compared with forgings, it consumes less energy.

3. The castings have a certain dimensional accuracy and a small machining allowance, which can save metal and processing time.

4. Low cost, high comprehensive economic benefit, low energy consumption, consumables and cost. Investment casting is a relatively common casting method, also known as lost wax casting, that is, selecting suitable investment materials (such as paraffin) to make investment molds, and repeatedly painting and sprinkling refractory sand on the investment mold to make The hard shell and the shell are completely dry, and then the investment mold in the shell is melted to obtain a cavity, so that the firing mold shell has sufficient strength, and the remaining investment materials are burned out, the required metal materials are poured, and cooled and solidified , To make the shell fade, so as to obtain a high-precision finished product. According to product requirements for cold, heat treatment and surface treatment.