Control Technology of Plastic Injection Mold Size
1. First of all, it is necessary to fully understand the technical requirements of users in many aspects, such as mold structure, material, hardness and accuracy, including whether the shrinkage rate of the formed plastic material is correct, and whether the 3D dimensional modeling of the product is complete, and reasonable processing and analysis are carried out.
2 Full consideration should be given to the various places where the appearance of the injection molding products, such as shrinkage, flow mark, mold deviation, weld line and crack, has an impact.
3. Simplify the mold processing method as much as possible without prejudice to the product function and pattern shaping.
4. Whether the selection of parting surface is appropriate or not, the mold processing, forming appearance and burr removal of forming parts should be carefully selected. 5. Whether the pushing way is appropriate or not, using push rod, unloading plate, pushing casing or other ways, whether the position of push rod and unloading plate is appropriate.
6, side core-pulling mechanism is appropriate, flexible and reliable action, should not be stuck.
7. What kind of temperature control method is more suitable for plastic products, which kind of structure circulation system is used for temperature control oil, temperature control water and coolant, and whether the size, number and location of coolant hole are appropriate.
8. The gate form, the size of feed channel and feed port, gate location and size are appropriate.
9. The influence of heat treatment deformation of various modules and die core and the selection of standard parts are appropriate.
10. Whether the injection volume, injection pressure and clamping force of the injection molding machine are adequate, whether the nozzle R and the hole diameter of the gate sleeve are suitable.
