Molding Process
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PP Automotive Parts Application
Fenómeno do problema
[Problem Phenomenon] Material selection for automotive bumpers, interiors, battery cases requires lightweight, impact resistance, and chemical resistance
Análise das causas
PP (especially impact copolymer and LFT-PP) is lightweight (0.90-0.91), impact-resistant and chemical-resistant, widely used for bumpers, instrument panels, door panels, and battery cases; LFT-PP improves rigidity for structural parts
Solução
Select impact copolymer PP for bumpers; select LFT-PP for structural parts; select flame-retardant chemical-resistant grades for battery cases; after adjustment, take continuous samples to verify the effect, and resume mass production only after confirming stability
Conclusão principal
PP is the main force of automotive lightweighting, covering everything from bumpers to battery cases; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a troubleshooting reference for similar future problems
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