Properly increase section dimension of gate and runner; the position of gate is set at thick walls of the plastic parts and should be as symmetric as possible; improve mold exhausting condition; set cold-slug well with sufficient capacity to avoid cold material’s entering into the cavity and influencing filling and shrinkage compensation; […]
Polishing may facilitate ejection. This applies generally to the finish of the core, including side cores, in cases where the product has projections produced by deep recesses in the cavity or where there is little draft angle specified, the cavity must also be free of any roughness that prevent easy ejection.
Hot runner systems are such a common part of injection molds that hot runner suppliers must adjust component designs in order to meet increasingly stringent requirements in performance and materials, often adding to system complexity. […]
the cores and cavity molds should be separately controlled, generally, cavity molds absorb more heat and contain large heat radiating area, and therefore, require stronger control than cores. […]
the hot and cold medium channel of molds is usually in hole or slot form, […]
Generally, plastic parts can be taken out of the mold cavity by only one ejection, yet due to their special forms, it is still difficult to take out the parts from cavity or the parts can not fall off freely from the mold upon the completion of an ejection movement. […]
During each cycle of the injection and molding, the plastic part must strip from the cavity and core of the mold, […]
today we discuss the working dimension of molding parts. Because it refers to the dimension in direct contact with plastic in cavity and core, […]
furthermore, in first-rate mold solution co, ltd, for cavities which are of complicated shape or are damageable in certain parts, […]
the material is selected for the part molding area according to the surface roughness of the plastic part and the expected number of injection cycles. […]