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문제 및 해결책

일반적인 플라스틱 재료 문제에 대한 실질적인 답변

11636 질문
Q
Poor Printing Adhesion of LDPE Film
A
Printing adhesion = dyne value + aging.
Extrusion & Post LDPE; film; printing; corona; dyne value
Q
LDPE Film Static Electricity Problem
A
Static electricity = the three-piece set of eliminator + humidity + grounding.
Material Drying LDPE; film; static electricity; antistatic; ambient humidity
Q
LDPE '2079851475616104452 Sink Marks
A
Sink mark = compensation problem.
Injection Molding LDPE; '2079851475616104452; sink mark; holding pressure; thick wall
Q
LDPE '2079851475616104452 Mold Sticking
A
Soft material demolding = draft angle + polishing + ejection area.
Extrusion & Post LDPE; '2079851475616104452; mold sticking; draft angle; ejection
Q
LDPE '2079851475616104452 Flash
A
For soft material flash, reduce pressure first.
Injection Molding LDPE; '2079851475616104452; flash; holding pressure; clamping
Q
LDPE '2079851475616104452 Warpage
A
LDPE injection deformation = cooling balance.
Injection Molding LDPE; '2079851475616104452; warpage; shrinkage; cooling
Q
LDPE Extrusion Coating Pinholes
A
Pinhole = check three: film rupture + substrate contamination + thin layer.
Extrusion & Post LDPE; extrusion coating; pinhole; coating; substrate
Q
LDPE Extrusion Coating Neck-in
A
Neck-in = elastic shrinkage; adjust oppositely to lowering temperature and increasing speed.
Extrusion & Post LDPE; extrusion coating; neck-in; Neck-in; air gap
Q
Uneven Tightness of LDPE Film Rolls
A
Eighty percent of film roll problems come from the film's own thickness.
Extrusion & Post LDPE; film; film roll; tension taper; winding
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