Injection molding refers to the plastic box seat of the electronic connector by injecting the molten plastic into the metal tire film, and then rapidly cooling and forming it. The plastic box seat of the electronic connector is made in the injection molding stage.
The factors that should be paid attention to during injection molding of the material are: drying, material temperature, mold temperature, control of injection rate, back pressure setting, etc. If there is insufficient preparation before injection molding or injection molding conditions are not set well, many defects will occur:
1) Flash: The material has good fluidity, slow cooling, improper product or mold design, resulting in burrs. Or the clamping force of the mold is not enough, causing the mold to fail to close well, and a lot of burrs appear on the edge of the product, which is called flash.
2) Warpage: The thermal stress of the material is too large, the thickness of the product is uneven, and the shrinkage is inconsistent, resulting in warping or bending. The pressure and temperature settings are unreasonable, and the residual stress of the product in the flow direction is too large. It will also cause warpage.
3) Dissatisfaction: The thin part of the product is too thin, which makes the flow stagnate and cannot fill the mold. Or the material fluidity is not good enough, and the exhaust is not good, which can also cause problems.
4) Black spots or variegated colors: The plastic pellets are contaminated by foreign matter, the on-site 5S management is not in place, and the screw problem is likely to cause poor product appearance.
The connector manufacturer TXGA production line covers proofing, stamping, electroplating, injection molding, assembly and final inspection processes. A complete production line and strict production requirements can implement product quality control to the extreme and provide customers with a truly one-stop worry-free service. Original authentic products, complete models, online purchase, and fast delivery. If you need a connector, click to enter TXGA [Product Center] to purchase.
