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Q

Rough Surface / Pitted Surface

A

This problem is a typical manifestation of rough surface/pitted surface in the RIM process; the core of the solution lies in ensuring the precise ratio and full mixing of the two components, while controlling the reaction temperature and curing conditions within the optimal window. It is recommen...

Molds & Tooling demolding draft anglemold polishingholding pressurecooling timerelease agent

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Q

Surface Orange Peel

A

This problem is a typical manifestation of surface orange peel in the RIM process; the core of the solution lies in ensuring the precise ratio and full mixing of the two components, while controlling the reaction temperature and curing conditions within the optimal window. It is recommended to st...

Molds & Tooling demolding draft anglemold polishingholding pressurecooling timerelease agent

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Q

Too Slow Curing

A

The core of curing abnormality is that the rate and degree of the crosslinking reaction deviate from the optimal window. The adjustment idea is the "three-element method": formulation (precise metering of catalyst/curing agent), temperature (precise control of mold and material temperature), time...

Molds & Tooling curing degreecatalyst dosagemold temperaturecuring timepost-curing

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Q

Too Fast Curing

A

The core of curing abnormality is that the rate and degree of the crosslinking reaction deviate from the optimal window. The adjustment idea is the "three-element method": formulation (precise metering of catalyst/curing agent), temperature (precise control of mold and material temperature), time...

Molds & Tooling curing degreecatalyst dosagemold temperaturecuring timepost-curing

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Q

Component Ratio Imbalance

A

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

Molds & Tooling component ratiometering pumpviscosity controlisocyanate indexone-way valve

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Q

Uneven Mixing

A

RIM mixing quality is the first element determining part consistency. The core control points are: the impingement mixing Reynolds number of the mixing head (to ensure turbulent mixing), the viscosity matching of the two components (to reduce viscosity difference), the accuracy of the metering pu...

Molds & Tooling mixing uniformitymixing headimpingement mixingcomponent viscositymetering accuracy

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Q

Material Batch Difference

A

This problem is a typical manifestation of material batch difference in '2079851475616104452; 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...

Molds & Tooling material batch differencematerial

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Q

Improper Mixing Ratio

A

This problem is a typical manifestation of improper mixing ratio in '2079851475616104452; 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 rec...

Molds & Tooling improper mixing ratio

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Q

Impurity / Foreign Matter in Material

A

This problem is a typical manifestation of impurity/foreign matter in material in '2079851475616104452; 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 des...

Molds & Tooling charging amountmaterial fluidityweighing accuracyhopper bridgingmaterial distribution

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Q

Recycled Material Influence

A

This problem is a typical manifestation of recycled material influence in '2079851475616104452; 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 ...

Molds & Tooling mixing uniformitymixing headimpingement mixingcomponent viscositymetering accuracy

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