Porosity and Shrinkage Holes in Castings

Problem Description:Internal pores or local shrinkage often occur due to the inability of gas to be discharged smoothly during pouring or uneven cooling.

Solution:

  • Optimize the pouring system design and set up good risers and exhaust ducts to ensure smooth gas discharge.
  • Control the pouring speed and temperature to avoid soup flow air entrainment and excessive soup residue formation.
  • Arrange reasonable cooling paths according to product structure to avoid hot spot concentration.
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