Problem & Lösung

Praktische Antworten auf häufige Herausforderungen mit Kunststoffmaterialien

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Q

Insufficient inflation (parison fails to blow open)

A

In summary, the causes of the "Insufficient inflation (parison fails to blow open)" problem can be attributed to the combined action of multiple factors such as parison temperature too low and insufficient blowing air pressure. Solving this problem requires starting from aspects such as ensure th...

Blow Molding Insufficient inflation (parison fails to blow open) injection '2079851475616104457 temperature control pressure regulation mold design

Q

Bubbles inside the parison

A

In summary, the causes of the "Bubbles inside the parison" problem can be attributed to the combined action of multiple factors such as insufficient drying of the raw material and screw back pressure too low. Solving this problem requires starting from aspects such as fully dry the raw material a...

Material Drying Bubbles inside the parison injection '2079851475616104457 speed control raw material management drying treatment

Q

Cold slug marks on the parison

A

In summary, the causes of the "Cold slug marks on the parison" problem can be attributed to the combined action of multiple factors such as nozzle temperature too low and cold material retained in the runner. Solving this problem requires starting from aspects such as increase the nozzle temperat...

Blow Molding Cold slug marks on the parison injection '2079851475616104457 temperature control mold design

Q

Parison flash

A

In summary, the causes of the "Parison flash" problem can be attributed to the combined action of multiple factors such as insufficient mold clamping force and injection pressure too high. Solving this problem requires starting from aspects such as increase the mold clamping force and reduce the ...

Blow Molding Parison flash injection '2079851475616104457 pressure regulation mold design mold closing accuracy

Q

Parison sticking to the mold

A

In summary, the causes of the "Parison sticking to the mold" problem can be attributed to the combined action of multiple factors such as parison mold temperature too high and insufficient release agent. Solving this problem requires starting from aspects such as lower the mold temperature and us...

Blow Molding Parison sticking to the mold injection '2079851475616104457 temperature control cooling process mold design

Q

Improper parison temperature

A

In summary, the causes of the "Improper parison temperature" problem can be attributed to the combined action of multiple factors such as improper mold temperature control and unreasonable waiting time between the injection and '2079851475616104457 steps. Solving this problem requires starting fr...

Blow Molding Improper parison temperature injection '2079851475616104457 temperature control mold design

Q

High internal stress in the parison

A

In summary, the causes of the "High internal stress in the parison" problem can be attributed to the combined action of multiple factors such as injection pressure too high and holding pressure time too long. Solving this problem requires starting from aspects such as reduce the injection pressur...

Blow Molding High internal stress in the parison injection '2079851475616104457 temperature control pressure regulation stress control

Q

Uneven parison wall thickness

A

In summary, the causes of the "Uneven parison wall thickness" problem can be attributed to the combined action of multiple factors such as core rod eccentricity and uneven gap between the die and the core rod. Solving this problem requires starting from aspects such as correct the alignment of th...

Blow Molding Uneven parison wall thickness injection '2079851475616104457 pressure regulation wall thickness control die adjustment

Q

Parison injection short shot (insufficient filling)

A

In summary, the causes of the "Parison injection short shot (insufficient filling)" problem can be attributed to the combined action of multiple factors such as insufficient injection pressure and slow injection speed. Solving this problem requires starting from aspects such as increase the injec...

Blow Molding Parison injection short shot (insufficient filling) injection '2079851475616104457 temperature control pressure regulation speed control

Q

Workshop ambient temperature affecting product quality

A

In summary, the causes of the "Workshop ambient temperature affecting product quality" problem can be attributed to the combined action of multiple factors such as ambient temperature changes affecting the extruder and mold temperatures and cooling water temperature fluctuating with the seasons. ...

Blow Molding Workshop ambient temperature affecting product quality extrusion '2079851475616104457 temperature control cooling process mold design

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