Problem & Solution

Practical answers to common plastic material challenges

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Q

Mold parting line wear

A

This problem is a typical manifestation of mold parting line wear in transfer molding; the core of the solution lies in the rational design of the runner and gate system, the effective transmission of transfer pressure, and the uniform control of mold temperature. It is recommended to start troub...

Molds & Tooling flashclamping forceparting line gapcavity internal pressureburr

Q

Runner solidified material difficult to remove

A

This problem is a typical manifestation of runner solidified material difficult to remove in transfer molding; the core of the solution lies in the rational design of the runner and gate system, the effective transmission of transfer pressure, and the uniform control of mold temperature. It is re...

Molds & Tooling draft anglemold polishingholding pressurecooling timerelease agent

Q

Poor plunger sealing

A

This problem is a typical manifestation of poor plunger sealing in transfer molding; the core of the solution lies in the rational design of the runner and gate system, the effective transmission of transfer pressure, and the uniform control of mold temperature. It is recommended to start trouble...

Molds & Tooling poor plunger sealing

Q

Material pre-curing in the feeding chamber

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

Q

Poor mold venting

A

This problem is a typical manifestation of poor mold venting in transfer molding; the core of the solution lies in the rational design of the runner and gate system, the effective transmission of transfer pressure, and the uniform control of mold temperature. It is recommended to start troublesho...

Molds & Tooling vent groovegas back pressureoverflow groovevacuum ventingventing depth

Q

Residual stress in product

A

This problem is a typical manifestation of residual stress in product in transfer molding; the core of the solution lies in the rational design of the runner and gate system, the effective transmission of transfer pressure, and the uniform control of mold temperature. It is recommended to start t...

Molds & Tooling shrinkage ratewall thickness designcooling water channelsholding pressuredimensional accuracy

Q

Uneven product wall thickness

A

This problem is a typical manifestation of uneven product wall thickness in transfer molding; the core of the solution lies in the rational design of the runner and gate system, the effective transmission of transfer pressure, and the uniform control of mold temperature. It is recommended to star...

Molds & Tooling runner designgate sizepressure losscold slug wellrunner temperature

Q

Sprue solidified material sticking to the mold

A

This problem is a typical manifestation of sprue solidified material sticking to the mold in transfer molding; the core of the solution lies in the rational design of the runner and gate system, the effective transmission of transfer pressure, and the uniform control of mold temperature. It is re...

Molds & Tooling draft anglemold polishingholding pressurecooling timerelease agent

Q

Mold cavity scoring

A

This problem is a typical manifestation of mold cavity scoring in transfer molding; the core of the solution lies in the rational design of the runner and gate system, the effective transmission of transfer pressure, and the uniform control of mold temperature. It is recommended to start troubles...

Molds & Tooling draft anglemold polishingholding pressurecooling timerelease agent

Q

Insufficient clamping force

A

This problem is a typical manifestation of insufficient clamping force in transfer molding; the core of the solution lies in the rational design of the runner and gate system, the effective transmission of transfer pressure, and the uniform control of mold temperature. It is recommended to start ...

Molds & Tooling transfer pressureplunger wearbarrelgate sizerunner balance

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