Problem & Solution

Practical answers to common plastic material challenges

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Q

Product dimensions out of tolerance

A

This problem is a typical manifestation of product dimensions out of tolerance 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 t...

Molds & Tooling dimensional accuracyholding pressuremold temperatureshrinkage ratecheck ring

Q

Excessive product shrinkage

A

This problem is a typical manifestation of excessive product shrinkage 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 ...

Injection Molding shrinkage ratewall thickness designcooling water channelsholding pressuredimensional accuracy

Q

Product warpage deformation

A

Warpage is the macroscopic bending caused by inconsistent shrinkage of various parts of the product. The solution idea is: achieve uniform cooling of all parts during the cooling stage (cooling water channel optimization), adopt symmetrical layout and isotropic design in structural design (wall t...

Molds & Tooling warpage deformationcooling uniformityresidual stressgate symmetryannealing

Q

Product discoloration

A

This problem is a typical manifestation of product discoloration 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 troubl...

Molds & Tooling color deviationbarrel temperatureresidence timecolor masterbatch dispersionthermal degradation

Q

Poor product surface gloss

A

This problem is a typical manifestation of poor product surface gloss 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 surface glossmold polishingmold temperatureholding pressurerelease agent

Q

Product surface flow marks

A

This problem is a typical manifestation of product surface flow marks 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 flow marksmelt temperaturemold temperatureinjection speedripples

Q

Premature curing in the runner

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

Overflow groove design problem

A

This problem is a typical manifestation of overflow groove design problem 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 sta...

Molds & Tooling vent groovegas back pressureoverflow groovevacuum ventingventing depth

Q

Vent groove blockage

A

This problem is a typical manifestation of vent groove blockage 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 curing degreecatalyst dosagemold temperaturecuring timepost-curing

Q

Improper gate position

A

This problem is a typical manifestation of improper gate position 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 insufficient fillingmaterial flowabilitymolding pressuremold temperaturefeeding amount

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