What are the common pouring methods for stainless steel precision casting?

What are the common pouring methods for precision casting of stainless steel plates?

Stainless steel plate precision casting has the advantages of high specification accuracy and good surface quality. Moreover, investment casting is an advanced process that is widely used with little drilling. This processing process is simple and simple. One of the key processes in investment casting is to use fusible raw materials to make a fusible solid model. What are the common pouring methods for stainless steel plate precision casting?

1. Fixed term crystallization

"Some sand mold castings, such as turbine engine leaves, magnetic pads, etc., can improve their working characteristics significantly if their crystallization mechanism is a columnar crystal arranged in a certain direction. Therefore, investment casting fixed term crystallization technology is rapidly gaining a development trend.".

Crystallization under working pressure

Place the mold shell into the working pressure tank for pouring. After completion, immediately close the pressure tank and enter high pressure gas or rare gas into the tank to condense the casting under working pressure to expand the relative density of the casting.

3. Vacuum pump breathing pouring

Put the mold shell into the vacuum pump pouring box, and extract the vapor from the mold cavity according to the fine porosity in the mold shell, enabling shape memory alloys to better fill the mold cavity, copy the appearance of the mold cavity, improve the precision of the casting, and avoid the shortcomings of air holes and insufficient pouring.

4. Intermittent thermal force pouring

This is also a commonly used pouring method, in which the mold shell is removed from the calciner and poured at high temperatures.