New technology solves the valve seat face cracking problem

Dec. 01, 2021

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The engine valve seat face PTA  with stellite alloy, but the alloy often has immediate or delayed cracking. because there is tensile stress on the valve seat face.Our company uses the method of induction heating to eliminate the tensile stress. After PTA weld, the valve is immediately heated to release the stress, and solve the valve seat face cracking problem.


New technology solves the valve seat face cracking problem

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