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The thickness of the wall depends on the external force to be borne by the product, whether it is used as a support for other parts, the number of columns to be borne, the number of projections, and the selection of plastic materials. The wall thickness design of general thermoplastic should be limited to 4mm. From an economic point of view, product design with excessive thickness not only increase...
General specification for plastic mold cooling system. Generally speaking, we should pay attention to the following points.1. Cooling nozzles are all made of copper quick-connect nozzles. The standard of use is coiled JJPS2 quick-connect. If the contract has special requirements, the contract stipulates.2. the cooling nozzle can not extend the surface of the template in principle, and the surface o...
In addition to the original air in the cavity, there are low molecular volatile gases produced by heating or solidification of plastics, which must be considered to be discharged sequentially. Generally speaking, for complex mold, it is difficult to estimate the exact location of gas resistance in advance. Therefore, it is often necessary to confirm its position by trial mode and then open the exha...
What is the production process of plastic mold? What is mold production process? What are the contents of the mold production process? These questions will be asked by many friends who have just contacted the plastic mold industry. Let's answer below.Plastic mold production process refers to: the raw materials through casting, cutting and special processing methods, make it into plastic mold pa...
Many inexperienced plastic mold factory masters have finished the mold after a series of procedures, and then put it aside, waiting for the customer acceptance. Who knows when the customer comes to the acceptance, put on the injection molding machine, found that the product produced has been very different from the sample. What is the situation? This is because many beginners do not know how to sto...
Die is for the parts that are formed products service, so the mold must take the parts (forming products) development trend for their own development trend mold must meet their requirements. The development trend of parts is mainly light, exquisite, fast and efficient production, low cost and high quality, each of which indicates the mold development trend. The following are briefly analyzed:If you...
1. ABS: High fluidity, low cost, suitable for parts with low strength requirements (not directly impacted, not withstanding structural durability components in reliability testing), such as internal support frame (keyboard support, LCD support) and so on. There are also commonly used in electroplated components (such as buttons, side keys, navigation keys, electroplated decorations, etc.). At prese...
1. manufacturing tolerances for molded partsTherefore, the precision of the molding dimension should be higher than the relative accuracy of each dimension of the product. Generally, the mold manufacturing error takes one third or one quarter of the dimensional tolerance of the plastic parts.2. effect of molding shrinkageIt includes the difference between the calculated shrinkage rate and the actua...
