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Problema y solución

Respuestas prácticas a los desafíos comunes de los materiales plásticos

11636 preguntas
Q
DSTDP periodic surface ripples
A
Ripples are caused by unstable injection; equipment overhaul and PID control are key
Injection Molding DSTDPsurface ripplesinjection stabilityequipment overhaulPID control
Q
DSTDP poor plasticization
A
Poor plasticization is caused by improper screw design; optimizing the screw and raising temperature are key
Processing Machinery DSTDPpoor plasticizationscrew compression ratioshear rateprocessing temperature
Q
DSTDP low flexural modulus
A
Low flexural modulus is caused by material softness and insufficient filler; adding rigid filler is key
Material Analysis DSTDPflexural modulusrigid fillernucleating agentcrystallinity
Q
DSTDP internal inclusions
A
Inclusions are caused by raw material and environmental contamination; filtration and environment control are key
Production & Quality DSTDPinclusionsraw material filtrationenvironmental cleanlinessrecycled material sorting
Q
DSTDP hydrolysis aging
A
Hydrolysis aging is caused by polar groups being water sensitive; selecting low-polarity grades is key
Material Drying DSTDPhydrolysis agingpolar groupsanti-hydrolysis stabilizerwaterproof coating
Q
DSTDP large processing smoke
A
Large smoke is caused by volatiles evaporation; temperature reduction and exhaust are key
Material Analysis DSTDPprocessing smokevolatilesexhaust systemtemperature reduction
Q
DSTDP hardness too low
A
Low hardness is caused by material softness and excessive plasticization; adding filler is key
Molding Process DSTDPhardness too lowrigid fillerplasticizercrystallization control
Q
DSTDP insufficient flatness
A
Insufficient flatness is caused by shrinkage difference and stress; uniform cooling and annealing are key
Molds & Tooling DSTDPflatnessshrinkage differenceuniform mold temperatureannealing treatment
Q
DSTDP internal unmelted particles
A
Unmelted particles are caused by insufficient plasticization; raising temperature and reducing feeding are key
Processing Machinery DSTDPunmelted particlesplasticizing capacityprocessing temperaturescrew mixing
Q
DSTDP internal shrinkage void
A
Shrinkage void is caused by thick-wall shrinkage and insufficient holding; extending holding is key
Molds & Tooling DSTDPshrinkage voidthick wallholding timegate freezing
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