Problem & Lösung

Praktische Antworten auf häufige Herausforderungen mit Kunststoffmaterialien

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Q

LCP Anisotropic Warpage

A

The root of LCP warpage is the anisotropy of molecular orientation; filled grades can significantly reduce anisotropy (contrary to ordinary resins), and gate design is the first means.

Processing Machinery LCP;anisotropy;warpage;orientation;filling;gate

Q

LCP Weld Line Strength Extremely Low

A

Weld line is the Achilles' heel of LCP; gate position is more critical for LCP than for any other engineering plastic, and design avoidance is far better than process remedy.; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Material Analysis LCP;weld line;strength;gate;molecular orientation;confluence

Q

HDPE Opening Property

A

Film opening relies on anti-blocking agent and tension management; 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

Extrusion & Post HDPEopening propertyblockinganti-blocking agent

Q

HDPE Dimensional Drift

A

HDPE dimensions are based on inspection after aging; 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 HDPEdimensional driftpost-crystallizationaging

Q

HDPE Black Speck

A

Black speck radical cure relies on disassembly cleaning and monitoring; 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 HDPEblack speckdead spotdisassembly cleaning

Q

HDPE Yellowing

A

For yellowing, check temperature, residence, and antioxidant system; 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 HDPEyellowingoxidationantioxidant

Q

HDPE Glass Fiber Floating

A

Floating fibers are improved by mold temperature, speed, and grade; 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 HDPEglass fiberfloating fibermold temperature

Q

HDPE Regrind Specks

A

Regrind specks are controlled by sieving and ratio; 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 HDPEregrindspeckssieving

Q

HDPE Flow Mark

A

Jetting marks are controlled by gate and speed curve; 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

Molds & Tooling HDPEflow markjettinggate

Q

HDPE Bubble

A

Bubbles are treated by type according to thick or thin position; 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

Material Drying HDPEbubblevacuum voidholding pressure

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