Problema y solución

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Q

Uneven thickness of EVA film extrusion

A

The key points of EVA film thickness control are similar to those of PE film; die lip precision and temperature uniformity are the core.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Extrusion & Post EVA; film; thickness; die lip; die temperature; thickness measurement

Q

Excessively long EVA photovoltaic lamination time

A

Longer lamination time is not better; following the material supplier's process window is a basic principle.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Extrusion & Post EVA; photovoltaic; lamination time; peroxide; bubbles; process window

Q

Uneven EVA photovoltaic lamination temperature

A

Lamination temperature uniformity directly affects module consistency; high-temperature cloth is a simple and effective temperature equalization means.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Extrusion & Post EVA; photovoltaic; lamination; temperature unevenness; high-temperature cloth; heating plate

Q

EVA adhesive film moisture absorption during storage

A

Adhesive film storage management is the source of module quality; first-in-first-out and sealing are basic requirements.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Material Drying EVA; adhesive film; moisture absorption; storage; bubbles; inventory

Q

EVA foaming decomposition temperature management

A

Foaming timing relies on precise temperature management; the temperature division of labor between the mixing and foaming stages must be clear.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Processing Machinery EVA; foaming; decomposition temperature; AC foaming agent; temperature control; timing

Q

Incomplete crosslinking of EVA foaming

A

Crosslinking sufficiency determines the dimensional stability and performance of foamed products; the three elements of temperature, time, and accelerator work in synergy.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Molds & Tooling EVA; foaming; crosslinking; vulcanization; accelerator; shrinkage

Q

EVA foaming mold temperature unevenness

A

Mold temperature uniformity is the hardware foundation of foaming consistency; regular heat distribution testing should be included in maintenance.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Molds & Tooling EVA; foaming; mold temperature; heating channel; temperature control; testing

Q

EVA '2079851475616104452 mold sticking

A

EVA tack is a material characteristic; the release agent and mold surface condition are the main countermeasures.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Injection Molding EVA; '2079851475616104452; mold sticking; release agent; mold temperature; polishing

Q

EVA '2079851475616104452 Fluidity Management

A

EVA fluidity varies with VA content; the process should be adjusted with the grade characteristics.; After confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Injection Molding EVA; '2079851475616104452; fluidity; VA content; temperature; melt index

Q

EVA Shoe Sole Hardness Deviation

A

Hardness is a comprehensive indicator of foaming process stability; batch management is the key to control.; After confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Processing Machinery EVA; shoe sole; hardness; foaming; crosslinking; batch

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