Menu
Materiais Máquinas
Perspetivas
Artigos Vídeos Problema e solução
About
Sobre a Chembull Parceiros de média
Contacte-nos
Idioma
EnglishالعربيةPortuguêsEspañolDeutschTürkçe한국어

Problema e solução

Respostas práticas para os desafios comuns dos materiais plásticos

Explorar artigos →
1506 perguntas
Q
Ejector whitening on EVA injection molded products
A
Ejector whitening is caused by excessive ejection force and insufficient cooling; increasing ejector pin area and extending cooling time are key
Injection Molding EVA injection ejector whitening ejector pin area cooling time demolding draft
1 visualizações
Ler a resposta completa →
Q
Uneven color of EVA mixed with color masterbatch
A
Color masterbatch carrier matching and sufficient dispersion are key to color uniformity
Injection Molding EVA coloring color masterbatch carrier compatibility pigment dispersion color streaks
1 visualizações
Ler a resposta completa →
Q
Oil spots on EVA injection molded products
A
Oil spots are caused by external sources of release agent and lubricant; reducing release agent and sealing mold lubrication are key
Injection Molding EVA injection oil spots mold release agent lubricant exudation mold sealing
1 visualizações
Ler a resposta completa →
Q
Low weld line strength in EVA '2079851475616104452
A
Low weld line strength is caused by insufficient molecular entanglement; high temperature high speed injection and overflow well are effective countermeasures
Injection Molding EVA injection weld line insufficient entanglement injection temperature overflow well
1 visualizações
Ler a resposta completa →
Q
Insufficient flow length ratio in EVA '2079851475616104452
A
Insufficient flow length ratio is caused by EVA high viscosity; high temperature, high pressure and large gate are key
Injection Molding EVA injection flow length ratio melt viscosity injection temperature flow aid
1 visualizações
Ler a resposta completa →
Q
Severe flash in EVA '2079851475616104452
A
Flash is caused by high pressure injection and mold gap; reducing pressure and improving mold fitting are key
Injection Molding EVA injection flash clamping force parting line injection pressure
1 visualizações
Ler a resposta completa →
Q
Warpage deformation in EVA '2079851475616104452
A
Warpage is caused by shrinkage differences and orientation stress; uniform mold temperature and holding pressure are key
Injection Molding EVA injection warpage shrinkage rate holding pressure annealing treatment
1 visualizações
Ler a resposta completa →
Q
Premature gate freezing in EVA '2079851475616104452
A
Premature gate freezing is caused by small gate and low temperature; enlarging gate and raising temperature are fundamental measures
Injection Molding EVA injection gate freezing holding pressure transmission gate size mold temperature
1 visualizações
Ler a resposta completa →
Q
Burning from mold venting in EVA '2079851475616104452
A
Burning is caused by insufficient venting and high speed injection compressing air; increasing venting and reducing speed are key
Injection Molding EVA injection mold burning vent grooves injection speed air compression
1 visualizações
Ler a resposta completa →
Q
Difficult demolding of EVA '2079851475616104452
A
Difficult demolding is caused by adhesion and insufficient mold design; increasing demolding draft is the fundamental measure
Injection Molding EVA injection difficult demolding demolding draft adhesion ejection design
1 visualizações
Ler a resposta completa →
Anterior 1 ... 84 85 86 87 88 89 90 ... 151 Seguinte

Categorias

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
ChemAI