Molding Process
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Circumferential cracks in welds
Fenómeno do problema
Circumferential cracks in hot-melt welds and low pressure bearing
Análise das causas
The heating time is short and melting is insufficient; the pressure is large and the weld is thin
Solução
Extend the heating time, reduce the pressure to 0.15MPa, heat preservation, NDT testing
Conclusão principal
Circumferential cracks are a major hidden danger of welds
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