Hot runner composition and scope of application
Temperature control of plastics; Plastic temperature control is extremely important in Toho hot runner mold applications. Many processing and product quality problems in the production process directly stem from the poor temperature control of the hot runner system. For example, the problem of poor gate quality when using needle valve hot runner injection molding, the difficulty of valve needle closing during needle valve molding, and the inconsistency of parts filling time and quality in multi-cavity molds. If possible, a hot runner system with multi-zone temperature control should be selected as far as possible to increase the flexibility and adaptability of use.
2022-09-19
What details should be paid attention to in the maintenance process of hot runner mold
The protection of special-shaped molds in hot runner molds, the maintenance of gates, the inspection of guide parts, and the adjustment of mold distance, etc. 1. Maintenance of special-shaped molds When disassembling the special-shaped mold, you should pay attention to the original condition of the mold, so that it can be easily restored during subsequent mold installation. If there is padding or displacement, the thickness of the gasket should be engraved on the part and recorded. Whether the new parts need to be stolen, whether there is enough material to be stolen, and whether the mold needs to be locked tightly. Pay attention to the locking confirmation of the stripper plate screw. When locking, it should be locked from the inside to the outside, and the balance force should be cross-locked. Do not lock one screw first and then another screw, so as not to cause the stripper plate to tilt and cause the special-shaped mold to break or break. The precision of the mold is reduced.
2022-09-19
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