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Precision brass casting process measures
- Sep 03, 2018 -

In the precision brass casting process, in order to ensure the final casting effect, we can take some specific measures. Zinc in cast brass is an important factor affecting the castability of cast brass. Zinc has a vaporization point of about 907 ° C, and cast brass has a melting point of about 900 ° C. Zinc has a tendency to evaporate and oxidize greatly during smelting and casting.

 

Not only that, when the precision brass casting, there is still a problem to be solved: the casting brass has better fluidity, but the manganese brass shrinks more, which is prone to shrinkage, cold cracking and deformation. Therefore, in casting we need to use a well-receiving sand core to reduce casting stress and prevent cracks and deformation. Set the riser and strengthen the feeding.

 

In addition, the casting system of precision brass casting should be reasonably set. On the one hand, it is required to realize directional solidification, and the structure of collecting slag and slag should be set. On the other hand, it is required to make the liquid flow smoothly fill, and the layout of the inner runner should be The casting is evenly cooled. Moreover, the casting process minimizes the casting temperature of the cast brass to reduce liquid shrinkage and prevent vaporization.

 

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