Problema e solução

Respostas práticas para os desafios comuns dos materiais plásticos

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Q

PPO Ambient Humidity and Storage

A

Low water absorption does not mean no water absorption; PPO opened-bag management follows the rules; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a troubleshooting reference for subsequ...

Material Drying storagemoisture absorptionsealingmoisture regain

Q

PPO Injection Pressure As Low As Possible

A

PPO injection pressure as low as possible; flow problems are compensated with temperature rather than piled up with pressure; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Injection Molding injection pressureinternal stresslow pressureflow

Q

PPO Cushion 4-10mm Management

A

PPO cushion 4-10mm is the lifeline of holding pressure transmission; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a troubleshooting reference for subsequent similar problems

Processing Machinery cushionholding pressuresink markmetering

Q

PPO Injection Speed Grading

A

PPO injection medium to fast; between fast and slow depends on flow length and venting; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a troubleshooting reference for subsequent similar p...

Injection Molding injection speedshort shotjettinggrading

Q

PPO PPX Grade Low-Temperature Process

A

PPX is a PP alloy low-temperature material, 65-75℃ drying and 40-65℃ mold temperature; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Material Drying PPXPPO/PPlow-temperature processdrying

Q

PPO GTX Grade Temperature Characteristics

A

GTX is a PA alloy; process and purging both follow the nylon system; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a troubleshooting reference for subsequent similar problems

Material Drying GTXPPO/PAprocess differencepurging

Q

PPO High-Temperature Grade Temperature Upper Limit

A

High-temperature PPO grades can reach 320℃, but the upper limits of each zone must not be exceeded according to the table; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a troubleshooting...

Processing Machinery high-temperature grademelt temperatureupper limitresidence

Q

PPO Drying Equipment Selection

A

The 0.02% moisture content goal needs a dehumidifying dryer as backup; hot air ovens depend on the weather; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Material Drying dehumidifying dryerdew pointovenrainy season

Q

PPO Molding Cycle Reference

A

PPO cycle has a reference baseline; compressing the cycle must first ensure cooling quality; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a troubleshooting reference for subsequent simi...

Processing Machinery molding cyclecoolingefficiencybaseline

Q

PPO Injection Pressure Range

A

PPO injection pressure 100-140MPa is the baseline window; raising pressure combined with raising temperature achieves balance; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Injection Molding injection pressureshort shotflashwindow

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