Problema e solução

Respostas práticas para os desafios comuns dos materiais plásticos

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Q

LDPE Melt Temperature 160-240℃

A

LDPE's wide temperature window reflects its process friendliness; film wet marks are the characteristic signal of excessive temperature; After confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Production & Quality LDPE; melt temperature; 160-240℃; wet mark; flowability

Q

LDPE Non-hygroscopic Drying

A

LDPE drying is moisture prevention rather than dehydration; sealed storage is the main measure, and moisture-affected material recovers at 80℃×1-2h; After confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Material Drying LDPE; drying; non-hygroscopic; 80℃; silver streak

Q

Insufficient LDPE Film ESCR

A

ESCR is a mandatory test item for medium-contact packaging; advancing material selection verification can avoid batch failure.; After confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Processing Machinery LDPE; film; ESCR; stress cracking; medium; material selection

Q

LDPE Film Low-temperature Brittleness

A

Low-temperature applications require dedicated verification; formulation and thickness are the two elements of cold-resistant design.; After confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Processing Machinery LDPE; film; low temperature; brittle cracking; formulation; cold resistance

Q

LDPE Film Screw L/D Ratio

A

Screw configuration is the hardware foundation of plasticizing quality; film production should not save cost on the screw.; After confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Processing Machinery LDPE; film; screw; L/D ratio; plasticizing; configuration

Q

LDPE Film Raw Material Melt Index Selection

A

Melt index is the first parameter in material selection; the process must be recalibrated with the melt index.; After confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence; Incorporate this case into the defect archive as a troubleshooting...

Processing Machinery LDPE; film; melt index; material selection; process; window

Q

LDPE Film Odor Problem

A

Off-odor of food contact film is a hard indicator; source material and temperature management are the keys.; After confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Processing Machinery LDPE; film; odor; degradation; additive; food

Q

LDPE Film Storage Deformation

A

Storage conditions are an extended link of film quality; temperature-humidity and stacking management cannot be ignored.; After confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Processing Machinery LDPE; film; storage; deformation; blocking; inventory

Q

LDPE Film Roll End Face Taper

A

Tapered rolls are the cumulative manifestation of thickness deviation; the fundamental cure is improving transverse uniformity.; After confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Extrusion & Post LDPE; film; winding; taper; correction; thickness

Q

LDPE Film Static Electricity Dust Attraction

A

Static management relies on both equipment and material means; antistatic masterbatch suits long-term storage scenarios.; After confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Extrusion & Post LDPE; film; static electricity; dust attraction; antistatic; ionized air

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