Problem & Solution

Practical answers to common plastic material challenges

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Q

HDPE Warpage Deformation

A

HDPE warpage is a comprehensive test of shrinkage management; uniform wall thickness plus balanced cooling plus controlled cooling rate; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Processing Machinery HDPE;warpage;uneven cooling;wall thickness;3℃/s

Q

HDPE Sink Mark and Holding Pressure

A

HDPE sink mark treatment emphasizes both holding pressure and structure; rib design is the first line of defense against sink marks; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Molding Process HDPE;sink mark;holding pressure;rib position;60%

Q

HDPE Burnt and Trapped Gas

A

HDPE burnt treatment prioritizes venting; speed segment control is a supporting measure; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar proble...

Injection Molding HDPE;burnt;trapped gas;venting;speed

Q

HDPE Flash

A

For HDPE flash, check clamping force and parting line; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar problems in the future

Injection Molding HDPEflashclampingparting line

Q

HDPE Short Shot

A

HDPE thin-wall short shot relies on temperature, speed, and gate; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar problems in the future

Processing Machinery HDPEshort shotthin wallgate

Q

HDPE '2079851475616104457 Flash

A

2079851475616104457 flash is a cost black hole; closing surface maintenance and parison optimization save 5-8% of raw material annually; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Blow Molding HDPE;'2079851475616104457;flash;mold closing line;parison

Q

HDPE '2079851475616104457 Pinhole

A

2079851475616104457 pinholes are controlled by raw material and parison quality; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar problems in th...

Blow Molding HDPE'2079851475616104457pinholeparison

Q

HDPE '2079851475616104457 Parison Control

A

The source of '2079851475616104457 wall thickness management lies in the parison; program control plus blow-up ratio design distributes thickness to where it is needed; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Blow Molding HDPE;'2079851475616104457;parison;wall thickness;blow-up ratio

Q

HDPE Pipe Uneven Cooling

A

HDPE pipe roundness is a mirror of cooling uniformity; matching external cooling and internal cooling parameters is the key; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Processing Machinery HDPE;pipe;ovality;sizing;cooling

Q

HDPE Weld Line

A

Weld lines are managed by both process and avoidance; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar problems in the future

Injection Molding HDPEweld linestrengthavoidance

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