Molds & Tooling
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PI compression molding and sintering product cracks
Problem Phenomenon
PI compression molded and sintered parts crack
Cause Analysis
Uneven density of the preformed green body; internal-external temperature difference during sintering causes stress; demolding temperature too high
Solution
Optimize preforming pressure uniformity; reduce the heating rate; control the cooling rate
Key Takeaway
The heating and cooling control of PI sintering is the key to preventing cracking
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