plastic mould and custom injection moulding tips

Mold Structure 1. Before everything else, it will be significant to completely be aware of the specialized specifications of the plastic mold construction, steel, hardness, accuracy, and so on., which includes the shrinking amount of the resin , Three-dimensional measurement, and producing evaluation. 2. Completely think about the shrinking, flow mark, draw direction, weld line and fracture of molded items. 3. Make ease of the mold creation if possible devoid of limiting the perform of the injection product and the structure. 4. Whether or not the choice of parting surface is acceptable needs to be cautiously picked out for die developing, developing overall look and deburring of established parts. 5. Whether or not the ejection strategy is suitable, regardless of whether ejection pins, stripper plate, ejection sleeve and some other approaches are implemented. 6. Whether the slider mechanism is acceptable, the motion is manageable and trustworthy, and there shouldn't be any phe...

Rusting of plastic molds is a normal phenomenon and  caused by special reasons.It is not always due to quality problems of steel products. Melt Decomposition Some plastic raw materials will release volatile gases after being heated, which are corrosive and corrode the mold steel. Therefore, when the injection machine stops , wipe the mold clean with soft rag and close the mold. If the mold downtime is for a long time, anti-rust  spray shall be used in the mold cavity. Butter shall be used to plug the gate when the mold is closed. Cooling Water Cooling water is mostly used in the mold for cooling, so there is more moisture around and inside plastic mold. If the mold is cooled below the dew point, moisture in the air will become water droplets on the surface of the mold, which will easily rust if it is not wiped off in time. Even after the mold stops working for a short time, condensed water will be seen soon. Therefore, when the molding is stopped, the cooling water shoul...