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Plastic products with high dimensional accuracy and strong mold durability

The dimensional accuracy of the plastic products is high, and the durability of the mold is stronger than the molding range of the fully automatic high-speed plastic molding machine is about 66X110cm, so whether it is a plaster mold, a copper mold or an aluminum mold, it is necessary to put together a single mold to achieve molding. In terms of size, we all call this process an imposition, and we need to fight on the aluminum plate or wood board that has blown holes. We call it the bottom mold after the completed mold.


The use of plastic aluminum mold production, mold production requires the use of computer design drawings, and then CNC milling machine processing, the advantage is that the production cycle is moderate, the latter mold processing time is short (drilling air eye work completed in the CNC machining), plastic product size High precision, strong mold durability.


The use of plaster mold production, mold production process is similar to the blister proofing, the advantage is that the production cycle is short, the cost is lowest, the production of a full version (60X110cm) mold takes only one or two days, the deficiencies are the rough surface of plastic products, production The molds are easily broken and the durability is poor, so that products with large depth, high complexity, and thick sheets cannot be formed.


For a product with a large depth of plastic molding, an upper die is also required. While the bottom die vacuum-forms the sheet, pressure is applied from above the sheet and the sheet is evenly stretched to each part, otherwise it will cause partial The thickness is too thin. The entire production cycle of the production mold should be 5 to 7 days.


Using electroplating copper mold, the process is to spray a good layer of conductive agent on the surface of the foam shell, and then put thick copper layer in the electrolytic bath, the plating process takes 72 hours, then the copper mold is to be filled Gypsum (increased hardness), polishing, air eye treatment, the advantages of using electroplated copper mold production is the smooth surface of the plastic products, the cost is moderate, strong durability, the disadvantage is that the mold production cycle is long, can not complete the production of precision plastic products.


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