Problema e solução

Respostas práticas para os desafios comuns dos materiais plásticos

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Q

PP Material Batch Switching

A

For PP material change, quick-check MFI first; recalibrate for supplier changes; 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

Processing Machinery batch switching MFI supplier calibration

Q

PP Semi-Crystalline Management Logic

A

PP is a semi-crystalline material; mold temperature manages crystallization strength; 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

Molds & Tooling semi-crystalline crystallinity mold temperature shrinkage

Q

PP Hot Runner Temperature

A

PP hot runner 220-260°C; drool prevention is the focus; 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

Molds & Tooling hot runner temperature control drooling gate

Q

PP Multi-Stage Injection Application

A

PP multi-stage injection: slow entry, fast middle, slow finish; 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

Injection Molding multi-stage injection jetting venting staging

Q

PP Cooling Time Setting

A

PP cooling is calculated by wall thickness; post-crystallization deformation must be prevented; 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 futu...

Molds & Tooling cooling time crystallization demolding cycle

Q

PP Fiber Spinning Temperature

A

PP spinning 250-280°C; drawing and cooling determine strength; 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

Extrusion & Post spinning fiber drawing cooling

Q

PP Extrusion Temperature Setting

A

PP extrusion 200-260°C; die temperature determines the surface; 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

Extrusion & Post extrusion temperature die surface screen pack

Q

PP FDM Printing Temperature

A

PP printing adhesion is the difficulty; dedicated glue plus insulation; 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

Extrusion & Post FDM printing adhesion warpage

Q

PP Material Change Cleaning

A

Thorough cleaning for PP material changes; double for dark-to-light; 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

Processing Machinery material change cleaning PE purging compound color change

Q

PP MFI and Processing Matching

A

PP MFI is selected by wall thickness and strength; high MFI for thin walls, low MFI for structure; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Injection Molding MFI melt index thin wall strength

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