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Yaygın plastik malzeme zorluklarına pratik yanıtlar

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Insufficient long-term hydrostatic strength of general-purpose polyethylene PPR pipes

Insufficient long-term hydrostatic strength is caused by material selection and processing quality, and needs to be comprehensively controlled from raw materials, processes, and welding.

Extrusion & Post hydrostatic strength PPR molecular weight pipe wall thickness crystallinity

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Uneven wall thickness of general-purpose polyethylene blow molded products

Uneven wall thickness is caused by parison sag and uneven inflation, and needs to be solved through parison control and process optimization.

Blow Molding uneven wall thickness parison sag blow-up ratio parison control blowing air pressure

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Insufficient elongation at break of general-purpose polyethylene injection molded products

Insufficient elongation at break reflects poor material toughness, and the plastic deformation ability needs to be improved by optimizing temperature parameters and reducing defects.

Injection Molding elongation at break molecular orientation crystallization quality residual stress material toughness

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Sharkskin appears on the surface of general-purpose polyethylene extruded products

Sharkskin is the result of stick-slip flow of the melt at the die exit, and is improved by raising the die temperature and reducing the extrusion speed.

Extrusion & Post sharkskin melt fracture die temperature extrusion speed die polishing

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Barrel temperature control failure of general-purpose polyethylene '2079851475616104452 machine

Temperature control failure is caused by sensor or heater faults, and the thermocouple, heater band, and temperature controller need to be systematically checked.

Injection Molding temperature control failure thermocouple heater band temperature controller PID parameters

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Low hardness of general-purpose polyethylene injection molded products

Low hardness is mainly caused by insufficient crystallinity or material degradation, and needs to be improved by increasing the mold temperature and holding pressure.

Injection Molding low hardness crystallinity mold temperature holding pressure nucleating agent

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Welding joint leakage of general-purpose polyethylene PPR pipes

PPR welding joint leakage is caused by improper welding parameters or welding surface contamination, and the welding temperature, time, and cleanliness need to be strictly controlled.

Material Analysis PPR welding hot melt welding welding temperature welding time fitting matching

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Nozzle drooling in general-purpose polyethylene '2079851475616104452

Drooling is caused by high nozzle temperature and residual pressure, and is solved by lowering the temperature, adjusting the back pressure, and increasing the suck-back amount.

Injection Molding drooling nozzle temperature back pressure suck-back amount needle valve nozzle

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Gate freezes too fast in general-purpose polyethylene injection mold

Gate freezing too fast is caused by small gate size or low temperature, and the freezing time needs to be extended by enlarging the gate and raising the temperature.

Injection Molding gate freezing gate size mold temperature melt temperature holding pressure

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Unstable mold temperature control in general-purpose polyethylene '2079851475616104452

Unstable mold temperature is caused by improper cooling system design or maintenance, and needs to be solved from the mold temperature controller, water channel design, and maintenance.

Injection Molding unstable mold temperature mold temperature controller cooling water channel scale uniform temperature

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Tüm Konular 11636 Material Drying 1439 Injection Molding 1506 Molding Process 740 Molds & Tooling 1506 Processing Machinery 2025 Extrusion & Post 2239 Blow Molding 315 Thermoforming 141 Material Analysis 1343 Production & Quality 382

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