문제 및 해결책

일반적인 플라스틱 재료 문제에 대한 실질적인 답변

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Dense surface pits of PU

Extrusion & Post PU surface pits impurity particles mold repair raw material purity

Slow curing of PU coating

PU coating curing speed is determined by NCO/OH ratio and humidity

Extrusion & Post PU coating curing speed NCO/OH ratio drier ambient humidity

Ovality of PU extruded pipe exceeding standard

Extrusion & Post PU pipe ovality annular cooling vacuum sizing uniform haul-off

Large current fluctuation of PU extruder

Extrusion & Post PU extrusion current fluctuation temperature control precision screw design feeding stability

Gel particles in PU extruded film

Extrusion & Post PU film gel particles melting temperature mixing section high molecular weight components

Transverse corrugations in PU extruded film

Extrusion & Post PU film transverse corrugation haul-off vibration cooling roller eccentricity pressure stabilizing device

Frequent screen clogging in PU extrusion

Extrusion & Post PU extrusion screen clogging gel particles stepped screen automatic screen changing

Unstable feeding in PU extrusion

Extrusion & Post PU feeding bridging loss-in-weight feeder granulation feed screw

Poor printing adhesion of PU film

Extrusion & Post PU film printing adhesion corona treatment special ink surface tension

Wrinkling of PU extruded film after winding

Extrusion & Post PU film winding wrinkling tension control thickness uniformity guide roller parallelism

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