Problema e solução

Respostas práticas para os desafios comuns dos materiais plásticos

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Q

Floating glass fibers

A

This problem is a typical manifestation of floating glass fibers 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...

Injection Molding floating glass fibers temperature mold

Q

Uneven filling of multi-cavities

A

This problem is a typical manifestation of uneven filling of multi-cavities 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 s...

Injection Molding 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

Insufficient filling

A

This problem is a typical manifestation of insufficient filling 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...

Injection Molding insufficient fillingmaterial flowabilitymolding pressuremold temperaturefeeding amount

Q

Large product post-shrinkage

A

This problem is a typical manifestation of large product post-shrinkage 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 coordi...

Injection Molding shrinkage ratewall thickness designcooling water channelsholding pressuredimensional accuracy

Q

Uneven shrinkage

A

This problem is a typical manifestation of uneven shrinkage 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 ...

Injection Molding shrinkage ratewall thickness designcooling water channelsholding pressuredimensional accuracy

Q

Insufficient filling/material shortage

A

This problem is a typical manifestation of insufficient filling/material shortage 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 adj...

Injection Molding insufficient fillingmaterial flowabilitymolding pressuremold temperaturefeeding amount

Q

Metering System Pressure Fluctuation

A

This problem is a typical manifestation of metering system pressure fluctuation 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 ...

Injection Molding metering system pressure fluctuationpressure

Q

Poor Mixing Head Cleaning

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...

Injection Molding mixing uniformitymixing headimpingement mixingcomponent viscositymetering accuracy

Q

Flash

A

The root cause of flash is that the mold-opening force generated by the cavity internal pressure exceeds the closing force of the clamping system. The logic chain of the solution is: first reduce the cavity pressure peak through process adjustment, then check and repair the clamping system to ens...

Injection Molding flashclamping forceparting line gapcavity internal pressureburr

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