![]() Reason: When this kind of situation occurs, it may be that the temperature of the dissatisfied preforms is too high, the coldness of the preforms is not satisfied, the air pressure and air volume are insufficient, the blow mold exhaust is poor, the temperature of the blow mold is too high, The wall is too thin, and the bottle's longitudinal stretch ratio is insufficient. ![]() Can solve this phenomenon of bending.Ĥ.The bottle body is not full in the vertical direction In addition, reduce the holding pressure, increase the injection speed, extend the cooling, clean the water channel, and increase the cooling water pressure. When the gate hole is eccentric, the mold can be corrected. Solution: When this situation occurs, some measures need to be taken. Reason: Eccentricity of the gate hole and uneven cooling will cause the preform to bend after demolding. In addition, correcting the mold and the gate can solve this problem. Solution: When the gate area is too hot, you should strengthen the insulation of the gate. In addition, the misalignment of the hot runner gate and the gate can also cause this situation. Reason: This kind of situation is basically caused by the undercut of the gate and the gate area is too hot. It is necessary to ensure that the raw material is dried at 165 degrees to less than 0.02% moisture content and it must be dried for more than four hours during manufacture Increase the speed of the screw. Solution: Check whether the temperature of the dry material is too low or the injection volume does not match. ![]() Reasons: It may be because the raw materials are insufficiently dried and plasticized or mixed with other plastics, the purity is not high and the temperature of the material is too low, which makes the PET bottle embryo opaque. We would like to share the reasons and solutions of pet preform mold broblems as following, Causes and Solutions of PET Preform Mould Problems ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |