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The manufacturing process of plastic products? Who knows?

The manufacturing process of plastic products? Who knows?

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(4) blow molding: hollow blow molding or hollow molding. Blow molding is resin parison with compressed air pressure in the heat of the closed mold blowing for a method of hollow products, including blow molding and blow molding hollow blown film products two methods. By blowing method can produce film products, all kinds of bottles, cans, pots and containers of children's toys.(5) calender is resin processing is expected to close by various additives (kneading, filter etc.) through the calender of two or more in favor of the opposing calender roll gap is processed into a film or sheet, then from the calender roller peeling off, and then by a molding method for cooling and shaping. Calendering is mainly used in the molding process of PVC resin. It can make films, sheets, plates, artificial leather, floor tiles and other products.(7) foaming material (PVC, PE and PS etc.) adding proper foaming agent to make plastic produce microporous structure. Almost all thermosetting and thermoplastic plastics can be made into foam plastics. According to the pore structure is divided into open celled foams (feel most connected with each other and closed cell foam pores) (most pores are separated from each other), which is mainly composed of manufacturing methods (including chemical foaming, physical foaming and foaming machine) decision. I hope it helps, thank you
1. the manufacturing process of plastic products, that is, the processing of plastic bottles, refers to the process of making the final plastic products from polymers made from synthetic resin manufacturing plants. 2., processing methods (and plastic processing), including: plastic (Molding), extrusion (extrusion), injection molding (injection molding), blow molding (hollow forming), rolling and so on. Detailed manufacturing process flow:(1) press molding: molding or pressing forming. Plastic molding is mainly used for molding phenolic resins, urea formaldehyde resins, unsaturated polyester resins and other thermosetting plastics.(2): extrusion, extrusion molding, extrusion machine is used (extruder) will be heated by continuous resin mold, extrusion method of desired shape. The extrusion molding sometimes have to thermosetting plastic, and can be used for foam molding. The advantage of extrusion is that it can extrude various shapes of products. The production efficiency is high, it can be automated and continuous production. The disadvantage is that thermosetting plastics can not be widely used in this process, and the size of products is prone to deviation. (3) injection molding: injection molding. Injection molding is an injection molding machine (or injection machine) that uses thermoplastic melts to be injected into the mold at high pressure to cool and solidify the product. Injection molding can also be used for the formation of thermosetting plastics and foams. Injection molding has the advantages of high production speed, high efficiency, automation in operation, and the ability to form complex parts. It is especially suitable for mass production. The disadvantage is the high cost of equipment and moulds, and the difficulty of cleaning of injection molding machines.
There are 4 categories:1, extrusion molding: in plastic processing, also known as extrusion, in the non rubber extruder processing, the use of hydraulic pressure on the extrusion of the mold itself, said press out. Refers to the material through the extruder, the barrel and the role of the screw, while heating plastic, while the edge is pushed forward by the screw, continuous through the nose and made a variety of cross section products or semi-finished products of a processing method.2, injection molding: also known as injection molding, it is an injection molding method. The advantages of injection molding process is the production of high speed and high efficiency, automation, and more varieties, shaped by the simple, size from big to small, and accurate product size, easy product upgrading, can become a part of complex shape, injection molding is suitable for mass production with complex shape products etc. processing field.3, slush molding: the method is to paste plastic (plastic sol) dumped into the mould is heated to a certain temperature (die or die), close to the cavity wall of the plastic paste is due to heat and gel, and then there will be no cementitious paste plastic and poured out, will be attached to the the cavity wall paste plastic heat treatment (baking), after cooling can be obtained from the mold hollow products.4, blow molding: mainly refers to blow (also called blow molding) refers to the gas pressure in the mold closing type billet hot melt blown to form hollow products, is the third most commonly used plastic processing methods, but also the development of a rapid method of plastic molding. The only female mold mold molding (die), compared with the injection molding equipment, low cost, strong adaptability, capable of forming a good performance (such as low stress), can be formed with complex undulating curves (shape) of the products.

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