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IMPAS Injection Molding Problems And SolutionsInjection molding problems and solutions
1. Shrink
2. Sticky mold. (Stripping difficulties) 3. Sprue stick mode 4. Pores within the products 5. Finished deformation 6. Crazing, gas sores 7. flash 8. Short shot 9. Melting lines 10. Finished surface rough gloss 11 black lines 12. Flow line 13 Broken when ejection Plastic molded products, in principle, are manufactured according to standard specifications, but in any case it is still very wide range of changes, sometimes during very smoothly process but suddenly shrink deformation, cracks, crazing occur or other unacceptable defects occur. We need to found out the problem according to the real defects, This is a specialized technology and experience accumulated
If we including the four main factors to the defects, That is, raw materials, molds, molding machines and molding conditions. Sometimes a little changes in operating conditions, or molds, machinery slightly adjusted, and filter the raw materials used, we can solve the problem. This chapter lists each product problems that may occur, and to explore solutions.
Injection molding conditions on the physical properties of molded products can be broadly considered in four areas:
1 material 2 forming machine 3 mold design 4. Molding conditions
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