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Problema y solución

Respuestas prácticas a los desafíos comunes de los materiales plásticos

11636 preguntas
Q
Glass Fibre internal density uneven
A
Uneven density is caused by uneven holding; optimizing gate design is key
Molds & Tooling Glass Fibreuneven densityholding transmissiongate designcrystallization difference
Q
Glass Fibre internal delamination cracking
A
Internal delamination is caused by poor interface and shrinkage difference; compatibilizer and uniform cooling are key
Extrusion & Post Glass Fibreinternal delaminationinterfacial adhesioncompatibilizeruniform cooling
Q
Glass Fibre internal black specks carbonization
A
Black specks are caused by thermal carbonization and carbon deposit; cooling and regular cleaning are key
Processing Machinery Glass Fibreinternal black specksthermal carbonizationscrew cleaningtemperature control
Q
Glass Fibre internal shrinkage void
A
Shrinkage void is caused by thick-wall shrinkage and insufficient holding; extending holding is key
Molds & Tooling Glass Fibreshrinkage voidthick wallholding timegate freezing
Q
Glass fiber uneven dispersion
A
Glass fiber dispersion is caused by insufficient shear; high shear and side feeding are key
Processing Machinery glass fiber dispersiontwin-screw shearside feedingmasterbatch methodkneading blocks
Q
Glass Fibre flexural modulus too low
A
Low flexural modulus is caused by material softness and insufficient filler; adding rigid filler is key
Material Analysis Glass Fibreflexural modulusrigid fillernucleating agentcrystallinity
Q
Glass Fibre hydrolysis aging
A
Hydrolysis aging is caused by polar groups' sensitivity to water; selecting low-polarity grade is key
Material Drying Glass Fibrehydrolysis agingpolar groupsanti-hydrolysis stabilizerwaterproof coating
Q
Glass Fibre processing temperature fluctuation
A
Temperature fluctuation is caused by improper temperature control system; PID tuning and heater band replacement are key
Molding Process Glass Fibretemperature fluctuationPID tuningheater bandthermocouple
Q
Glass Fibre processing large smoke
A
Large smoke is caused by volatiles evaporation; cooling and exhaust are key
Material Analysis Glass Fibreprocessing smokevolatilesexhaust systemcooling
Q
Glass Fibre hardness too low
A
Low hardness is caused by material softness and excessive plasticization; adding filler is key
Molding Process Glass Fibrelow hardnessrigid fillerplasticizercrystallization control
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