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Metal casting belongs to its own characteristics and application range
- May 21, 2018 -

Casting of non-ferrous metals can also be accomplished by metal mold casting, which is actually a method of casting a molten metal solution by gravity casting into a cast metal mold. Compared to other casting methods, metal casting has its own characteristics and application range.

 

In contrast, the quality and size of castings molded by metal casting are relatively stable, and the precision is high and the surface roughness is also relatively small. This is because the unique casting process makes the casting slope and the machining allowance of the casting can be reduced accordingly, and the casting qualification rate can be improved.

 

At the same time, there are also improvements in the density of the casting structure. Therefore, the mechanical properties of castings made of metal castings are higher than those of sand castings, and the surface layer of the casting contributes to the improvement of the corrosion resistance due to the formation of a dense tissue layer. In addition, the metal mold casting can conveniently adopt more technological measures to control the solidification sequence of the casting in the casting mold and the smoothness of the metal filling so as to ensure high quality castings.

 

In the metal mold casting process, it is not necessary to use sand or a small amount of core sand, which saves modeling materials, correspondingly reduces sand processing and sand transportation equipment, and greatly improves the environment in which casting is performed. Especially in the production of small and medium castings, the use of metal mold casting process is conducive to the realization of mechanization and automation to improve the casting efficiency.

 

However, metal mold casting also has its shortcomings, that is, high manufacturing costs and time-consuming production preparation, so it can not be used to produce large-scale castings, and the casting shape can not be too complicated. More suitable for large-scale, small and medium-sized casting production.

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