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What Is The Shrinkage Rate Of Die Casting

Views: 11     Author: Site Editor     Publish Time: 2020-07-20      Origin: Site

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  • Shrinkage rate of die casting refers to the relative change rate of die forming size and actual size of die casting at room temperature

  • The shrinkage rate of die casting includes liquid volume shrinkage of metal liquid, solidification phase transformation shrinkage and solid volume shrinkage

  • The more complex the casting structure is, the more core number is, and the more factors hindering shrinkage are, so the shrinkage rate is small, and vice versa.

  • The higher the casting temperature, the higher the shrinkage rate, and vice versa.

  • The shorter the stay time in the mold, the higher the demulsification temperature, the higher the shrinkage rate of the casting, and vice versa.

  • The free shrinkage of al - si alloys is usually 0.7-0.9%

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