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Praktische Antworten auf häufige Herausforderungen mit Kunststoffmaterialien

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Q

TPU product air traps

A

The air trap position is where vents should be added; special attention must be paid to venting for high-speed filling of elastomers; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Molds & Tooling TPU；air trap；burnt；venting；end；speed

Q

TPU product release agent residue

A

Release agent is an auxiliary means rather than the main solution; excessive use brings secondary processing problems; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Extrusion & Post TPU；release agent；residue；coating；cleaning；dosage

Q

TPU product discoloration

A

Discoloration must distinguish degradation yellowing from masterbatch problems; temperature management and masterbatch verification are equally important; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Processing Machinery TPU；discoloration；yellowing；color masterbatch；degradation；color difference

Q

TPU product hardness deviation

A

For hardness abnormality check the material first and then the process; batch management is the foundation of stability; 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 r...

Processing Machinery TPU；hardness；deviation；batch；material mixing；testing

Q

TPU product wear resistance not up to standard

A

Wear resistance is a core performance of TPU; grade and process protection are equally important; 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 pr...

Processing Machinery TPU；wear resistance；grade；degradation；hardness；testing

Q

TPU product surface oil gloss

A

Oil gloss points to additive exudation; temperature control and formulation confirmation are the solution path; 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 ...

Processing Machinery TPU；oil gloss；exudation；additive；temperature；formulation

Q

TPU product dimension instability

A

TPU dimension judgment must allow sufficient aging time; dimensional management of elastic materials relies more on process stability; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Molds & Tooling TPU；dimension；stability；aging；SPC；batch

Q

TPU product warpage

A

TPU warpage should be addressed from cooling and holding pressure; elastomer deformation is also affected by stress release after demolding; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Molds & Tooling TPU；warpage；cooling；holding pressure；stress；gate

Q

TPU film thickness unevenness

A

The thickness control points of TPU film are similar to those of other elastomer films; die lip precision is the core; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Extrusion & Post TPU；film；thickness；die lip；die temperature；thickness measurement

Q

TPU cable sheath bubbles

A

Cable sheath bubbles affect insulation performance; drying and temperature stability are the quality foundation; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Material Drying TPU；cable；sheath；bubble；drying；temperature

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