Problema e solução

Respostas práticas para os desafios comuns dos materiais plásticos

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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

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

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

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

Residual stress concentration inside the product

A

This problem is a typical manifestation of residual stress concentration inside the product 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 c...

Molds & Tooling insert displacement injection pressure insert fixing gate symmetry insert preheating

Q

Stress whitening

A

This problem is a typical manifestation of stress whitening 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 checks of mold design. It is reco...

Molds & Tooling silver streak raw '2079851475616104451 barrel temperature back pressure screw speed

Q

Abnormal glass fiber orientation

A

This problem is a typical manifestation of abnormal glass fiber orientation 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 checks of mold de...

Molds & Tooling transfer pressure plunger wear barrel gate size runner balance

Q

Mold vent groove carbonization

A

This problem is a typical manifestation of mold vent groove carbonization 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 checks of mold desi...

Molds & Tooling vent groove gas back pressure overflow groove vacuum venting venting depth

Q

Nozzle heater band short circuit

A

This problem is a typical manifestation of nozzle heater band short circuit 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 checks of mold de...

Molds & Tooling cooling water circuit mold temperature cooling time water circuit blockage beryllium copper insert

Q

Mold cooling water scaling

A

This problem is a typical manifestation of mold cooling water scaling 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 checks of mold design. ...

Molds & Tooling cooling water circuit mold temperature cooling time water circuit blockage beryllium copper insert

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