Problem & Solution

Practical answers to common plastic material challenges

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Q

Improper mold closing speed

A

This problem is a typical manifestation of improper mold closing speed in compression molding; the core of the solution lies in proper preheating of the material and assurance of flowability, as well as precise matching of mold temperature and molding pressure. It is recommended to adjust coordin...

Molds & Tooling improper mold closing speedtemperature

Q

Insufficient press pressure

A

This problem is a typical manifestation of insufficient press pressure in compression molding; the core of the solution lies in proper preheating of the material and assurance of flowability, as well as precise matching of mold temperature and molding pressure. It is recommended to adjust coordin...

Processing Machinery insufficient press pressurepressure

Q

Vent groove blockage

A

This problem is a typical manifestation of vent groove blockage in compression molding; the core of the solution lies in proper preheating of the material and assurance of flowability, as well as precise matching of mold temperature and molding pressure. It is recommended to adjust coordinately f...

Molds & Tooling curing degreecatalyst dosagemold temperaturecuring timepost-curing

Q

Uneven mold temperature

A

This problem is a typical manifestation of uneven mold temperature in compression molding; the core of the solution lies in proper preheating of the material and assurance of flowability, as well as precise matching of mold temperature and molding pressure. It is recommended to adjust coordinatel...

Molds & Tooling uneven mold temperaturetemperaturemold

Q

Mold wear

A

This problem is a typical manifestation of mold wear in compression molding; the core of the solution lies in proper preheating of the material and assurance of flowability, as well as precise matching of mold temperature and molding pressure. It is recommended to adjust coordinately from both as...

Molds & Tooling dimensional accuracyholding pressuremold temperatureshrinkage ratecheck ring

Q

Catalyst ratio error

A

This problem is a typical manifestation of catalyst ratio error in compression molding; the core of the solution lies in proper preheating of the material and assurance of flowability, as well as precise matching of mold temperature and molding pressure. It is recommended to adjust coordinately f...

Processing Machinery catalyst ratio errortemperature

Q

Curing agent ratio error

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...

Material Analysis curing degreecatalyst dosagemold temperaturecuring timepost-curing

Q

Prepreg storage deterioration

A

This problem is a typical manifestation of prepreg storage deterioration in compression molding; the core of the solution lies in proper preheating of the material and assurance of flowability, as well as precise matching of mold temperature and molding pressure. It is recommended to adjust coord...

Material Drying curing degreecatalyst dosagemold temperaturecuring timepost-curing

Q

Poor sheet material (SMC/BMC) flowability

A

This problem is a typical manifestation of poor sheet material (SMC/BMC) flowability in compression molding; the core of the solution lies in proper preheating of the material and assurance of flowability, as well as precise matching of mold temperature and molding pressure. It is recommended to ...

Molds & Tooling sheet material (SMCtemperaturepressuremold

Q

Poor powder flowability

A

This problem is a typical manifestation of poor powder flowability in compression molding; the core of the solution lies in proper preheating of the material and assurance of flowability, as well as precise matching of mold temperature and molding pressure. It is recommended to adjust coordinatel...

Material Drying poor powder flowabilitytemperaturepressuremold

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