Problema e solução

Respostas práticas para os desafios comuns dos materiais plásticos

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Q

Abnormal melt temperature in extruder zone

A

In summary, the causes of the "Abnormal melt temperature in extruder zone" problem can be attributed to the combined action of multiple factors such as thermocouple failure and improper PID parameters of the temperature controller. Solving this problem requires starting from aspects such as repla...

Blow Molding Abnormal melt temperature in extruder zone extrusion '2079851475616104457 temperature control heating process

Q

Parison extrusion pulsation

A

In summary, the causes of the "Parison extrusion pulsation" problem can be attributed to the combined action of multiple factors such as unstable screw rotation speed and die head pressure fluctuation. Solving this problem requires starting from aspects such as stabilize the screw rotation speed ...

Blow Molding Parison extrusion pulsation extrusion '2079851475616104457 pressure regulation screw maintenance

Q

Flash at the mold parting line

A

In summary, the causes of the "Flash at the mold parting line" problem can be attributed to the combined action of multiple factors such as insufficient mold clamping force and wear of the mold parting surface. Solving this problem requires starting from aspects such as increase the mold clamping...

Blow Molding Flash at the mold parting line extrusion '2079851475616104457 mold design mold closing accuracy

Q

Poor cutter (flash trimming) performance

A

In summary, the causes of the "Poor cutter (flash trimming) performance" problem can be attributed to the combined action of multiple factors such as cutter wear and improper adjustment of the cutter gap. Solving this problem requires starting from aspects such as replace or regrind the cutter an...

Blow Molding Poor cutter (flash trimming) performance extrusion '2079851475616104457 pressure regulation

Q

Improper mold temperature

A

In summary, the causes of the "Improper mold temperature" problem can be attributed to the combined action of multiple factors such as insufficient cooling water flow or improper water temperature control and scaling and clogging of the water channels. Solving this problem requires starting from ...

Blow Molding Improper mold temperature extrusion '2079851475616104457 temperature control cooling process mold design

Q

Improper blowing time

A

In summary, the causes of the "Improper blowing time" problem can be attributed to the combined action of multiple factors such as improper setting of blowing sequence parameters and delayed sensor response. Solving this problem requires starting from aspects such as optimize the blowing delay pa...

Blow Molding Improper blowing time extrusion '2079851475616104457 blowing parameters

Q

Insufficient blowing air pressure (fluctuation)

A

In summary, the causes of the "Insufficient blowing air pressure (fluctuation)" problem can be attributed to the combined action of multiple factors such as insufficient air supply from the air compressor and air line leakage. Solving this problem requires starting from aspects such as increase t...

Blow Molding Insufficient blowing air pressure (fluctuation) extrusion '2079851475616104457 pressure regulation blowing parameters

Q

Clogging of the blow pin (blow rod)

A

In summary, the causes of the "Clogging of the blow pin (blow rod)" problem can be attributed to the combined action of multiple factors such as flash or scrap entering the blow rod hole and poor filtration of the compressed air. Solving this problem requires starting from aspects such as clean t...

Blow Molding Clogging of the blow pin (blow rod) extrusion '2079851475616104457 blowing parameters

Q

Uneven parison temperature

A

In summary, the causes of the "Uneven parison temperature" problem can be attributed to the combined action of multiple factors such as damaged or unevenly distributed die head heater bands and unreasonable design of the internal flow channel of the die. Solving this problem requires starting fro...

Blow Molding Uneven parison temperature extrusion '2079851475616104457 temperature control die adjustment heating process

Q

Discoloration (black specks, burnt)

A

In summary, the causes of the "Discoloration (black specks, burnt)" problem can be attributed to the combined action of multiple factors such as melt temperature too high and residence time too long. Solving this problem requires starting from aspects such as lower the processing temperature and ...

Blow Molding discoloration (black specks burnt) extrusion '2079851475616104457 temperature control screw maintenance

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