Basic process of casting production
There are two basic processes for forming liquid metal: filling the mold and cooling solidification. These two basic processes can be done under the influence of gravity field or other forces. Filling molds (also known as casting) are mainly mechanical processes with varying speeds of motion, and cooling and solidification are heat transfer processes for crystallization and tissue changes.
According to the needs of the castings produced, a liquid metal or alloy of a certain mold and a certain chemical composition is prepared in advance. Then, the liquid alloy material is injected into the mold under the action of gravity or other force, and whether the filling is sufficient and stable has an important influence on the final quality of the casting, especially for some alloys with complicated shapes, large wall thickness differences or easy oxidation. It seems more important.
The crystallization and solidification of liquid alloy materials is the core problem in the formation process of castings. It largely determines the as-cast microstructure of castings and the formation of certain casting defects, because once the material solidifies into a solid, it is processed in the subsequent process. The almost meta-method makes the quality change intrinsically, so the cooling and solidification plays a decisive role in the quality of the casting, especially the as-cast mechanical properties. Controlling the solidification process to improve the quality of the casting and obtain the required structure and properties is an important part of the casting technology.
According to the needs of the castings produced, a liquid metal or alloy of a certain mold and a certain chemical composition is prepared in advance. Then, the liquid alloy material is injected into the mold under the action of gravity or other force, and whether the filling is sufficient and stable has an important influence on the final quality of the casting, especially for some alloys with complicated shapes, large wall thickness differences or easy oxidation. It seems more important.
The crystallization and solidification of liquid alloy materials is the core problem in the formation process of castings. It largely determines the as-cast microstructure of castings and the formation of certain casting defects, because once the material solidifies into a solid, it is processed in the subsequent process. The almost meta-method makes the quality change intrinsically, so the cooling and solidification plays a decisive role in the quality of the casting, especially the as-cast mechanical properties. Controlling the solidification process to improve the quality of the casting and obtain the required structure and properties is an important part of the casting technology.
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