Problema y solución

Respuestas prácticas a los desafíos comunes de los materiales plásticos

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Q

Raw material gelling in the storage tank

A

This problem is a typical manifestation of raw material gelling in the storage tank in the RIM process, and the core of the solution lies in ensuring the precise ratio and sufficient mixing of the two components, while controlling the reaction temperature and curing conditions within the optimal ...

Material Drying raw material gelling in the storage tank temperature

Q

Mold vent hole blockage

A

This problem is a typical manifestation of mold vent hole blockage in the RIM process, and the core of the solution lies in ensuring the precise ratio and sufficient mixing of the two components, while controlling the reaction temperature and curing conditions within the optimal window. It is rec...

Molds & Tooling curing degree catalyst dosage mold temperature curing time post-curing

Q

Low-temperature embrittlement of the product

A

The essence of embrittlement is that the material toughness reserve drops to a level that cannot meet the use requirements. The key to control is the "three temperatures" — processing temperature (avoid excessively high degradation), drying temperature (avoid excessively low residual moisture and...

Material Analysis embrittlement thermal degradation drying conditions recycled material ratio impact strength

Q

Uneven distribution of blowing agent

A

This problem is a typical manifestation of uneven distribution of blowing agent in the RIM process, and the core of the solution lies in ensuring the precise ratio and sufficient mixing of the two components, while controlling the reaction temperature and curing conditions within the optimal wind...

Molds & Tooling mixing uniformity mixing head impingement mixing component viscosity metering accuracy

Q

Static electricity on product surface adsorbing dust

A

This problem is a typical manifestation of static electricity on product surface adsorbing dust in the RIM process, and the core of the solution lies in ensuring the precise ratio and sufficient mixing of the two components, while controlling the reaction temperature and curing conditions within ...

Material Drying draft angle mold polishing holding pressure cooling time release agent

Q

Mixing head self-cleaning plunger stuck

A

RIM mixing quality is the first element determining product consistency. The core control points are: the impingement mixing Reynolds number of the mixing head (ensuring turbulent mixing), the matching of the viscosities of the two components (reducing viscosity differences), the accuracy of the ...

Molds & Tooling curing degree catalyst dosage mold temperature curing time post-curing

Q

Product creep

A

This problem is a typical manifestation of product creep in the RIM process, and the core of the solution lies in ensuring the precise ratio and sufficient mixing of the two components, while controlling the reaction temperature and curing conditions within the optimal window. It is recommended t...

Processing Machinery curing degree catalyst dosage mold temperature curing time post-curing

Q

Isocyanate index deviation

A

This problem is a typical manifestation of isocyanate index deviation in the RIM process, and the core of the solution lies in ensuring the precise ratio and sufficient mixing of the two components, while controlling the reaction temperature and curing conditions within the optimal window. It is ...

Processing Machinery component ratio metering pump viscosity control isocyanate index check valve

Q

Internal microcracks in the product

A

This problem is a typical manifestation of internal microcracks in the product in the RIM process, and the core of the solution lies in ensuring the precise ratio and sufficient mixing of the two components, while controlling the reaction temperature and curing conditions within the optimal windo...

Molds & Tooling shrinkage rate wall thickness design cooling water circuit holding pressure dimensional accuracy

Q

Insert preheating carrying static electricity

A

This problem is a typical manifestation of insert preheating carrying static electricity in '2079851475616104452, and the core of the solution lies in eliminating the root cause of the defect through systematic optimization of process parameters (temperature, pressure, speed) and rationality chec...

Material Drying insert displacement injection pressure insert fixing gate symmetry insert preheating

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