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Problema e solução

Respostas práticas para os desafios comuns dos materiais plásticos

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11636 perguntas
Q
CEF creep deformation large
A
Large creep is caused by the elastomer nature; slight crosslinking and rigid fillers are the key
Material Analysis CEFcreepslight crosslinkinghigh molecular weightrigid filler
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Q
CEF antistatic effect poor
A
Poor antistatic effect is caused by insufficient addition; increasing the antistatic agent is the key
Molding Process CEFantistaticantistatic agentsurface resistancemigration rate
16 visualizações
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Q
CEF processing temperature fluctuation
A
Temperature fluctuation is caused by improper temperature control system; PID adjustment and heating ring replacement are the key
Material Analysis CEFtemperature fluctuationPID adjustmentheating ringthermocouple
16 visualizações
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Q
CEF tensile strength insufficient
A
Insufficient tensile strength is caused by molecular weight and poor interface; selecting high MW grades is the key
Material Analysis CEFtensile strengthmolecular weightcoupling agentorientation control
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Q
CEF screw slipping
A
Screw slipping is caused by premature melting; reducing the feeding section temperature is the key
Extrusion & Post CEFscrew slippingfeeding section temperaturepremature meltingthread deepening
15 visualizações
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Q
CEF size changes greatly with temperature
A
Dimensional temperature sensitivity is caused by the large thermal expansion coefficient; adding fillers and annealing are the key
Extrusion & Post CEFdimensional temperature sensitivitythermal expansion coefficientrigid fillerannealing treatment
15 visualizações
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Q
CEF hardness too high
A
High hardness is caused by crystallization and fillers; adjusting cooling and fillers is the key
Material Analysis CEFhardness too highcrystallinityfiller amountplasticizer
16 visualizações
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Q
CEF surface tiger stripes
A
Tiger stripes are caused by unstable injection front; multi-stage injection and high mold temperature are the key
Injection Molding CEFtiger stripeinjection speedmulti-stage injectionmold temperature control
15 visualizações
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Q
CEF elongation at break low
A
Low elongation at break is caused by low molecular weight and orientation; selecting high MW and reducing orientation are the key
Material Analysis CEFelongation at breakmolecular weightorientation controlcrosslinking degree
16 visualizações
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Q
CEF compression set large
A
Large compression set is caused by insufficient crosslinking; increasing the crosslinking degree is the key
Molding Process CEFcompression setcrosslinking degreeelastic recoveryreinforcing filler
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Todos os tópicos 11636 Material Drying 1439 Injection Molding 1506 Molding Process 740 Molds & Tooling 1506 Processing Machinery 2025 Extrusion & Post 2239 Blow Molding 315 Thermoforming 141 Material Analysis 1343 Production & Quality 382
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