There are two basic processes for liquid metal forming in precision steel casting: mold filling and cooling solidification. These two basic processes can be completed re-fielded under the action of other forces. Filling the mold (also known as casting) is a major change in the velocity of mechanical processes, cooling and solidification crystallization and organizational changes, compared with the heat transfer process.
According to the needs of the production of precision steel casting, prepare the cast and the certain composition of chemical liquid metal.
Then under the force of gravity or other power, you pour liquid alloy material into the mold.
Whether the filling, smooth have an impact on the precision steel casting parts, especially in the some with complex beginning or thick wall or easily oxidized.
The alloy is even more important.
Liquid crystal and the solidification of alloys is the core of the precision steel casting formation, which largely determine the casting formation of the cast and some of the casting defect. Because the material once becomes the solid, the other in the subsequent precision steel casting processing is almost impossible to make a fundamental change in the quality. So the cooling and solidification of the precision steel casting quality, in particular for cast mechanical properties, plays a decisive role. Control the solidification process to improve precision steel casting quality, and obtain the required microstructure and properties, is an important part of precision steel casting technology.