Basic requirements for die-casting alloys - Quotation

The performance of alloys includes two aspects: usage performance and process performance. Performance refers to the general requirements of the casting's usage conditions for alloys, including physical, mechanical, and chemical properties. As for the process performance, for die-casting, according to the process characteristics of die-casting, the alloy used for die-casting should have the following properties:

(1) Good liquid fluidity facilitates the filling of complex cavities to obtain die castings with good surface quality.

(2) Having sufficient strength and plasticity at high temperatures.

(3) The shrinkage rate is relatively small to avoid deformation and cracking of the casting during demolding, and to help ensure the dimensional accuracy of the die casting.

(4) The crystallization temperature range is small to prevent excessive shrinkage and porosity in die castings.

(5) The corrosion to the mold cavity should be minimal.