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Plastic Injection Molding Is Adaptable


Plastic injection molding is the most important processing method of thermoplastic plastic workpiece. By using this method to process the molded plastic workpiece, its variety and style are incomparable with other moulding methods. The process is the use of the screw with the thrust of the plastic mold design and implementation, Custom Injection Molding And Plastic Molding plastic melt into the closed mold cavity, after the cooling and solidification molding mold to get plastic parts. Rob said that the formation of plastic injection molding requires three of the necessary conditions: first, the plastic parts must melt into the mold cavity, the second is the plastic solution must have enough pressure and flow rate to ensure that the full mold in a timely manner to fill all corners; The third is the need to meet the shape and size of the workpiece and the requirements of molding process mold. ROB analysis, plastic injection molding technology compared with other molding technology has its unique advantages, performance in the following aspects: The first is the molding materials melting and plasticizing and flow molding is in the plastic cylinder and mold cavity Two, Custom Injection Molding And Plastic Molding the mould can always be in the condition that dissolve quickly condenses or cross-linking, thus it is advantageous to shorten the molding period; the second is to lock the mold before the plastic solution is injected, coupled with a good fluidity of the solution to the mold cavity wear is very small, So you can use a set of molds to form complex parts in large quantities, products with clear surface and high precision of marking, the third is the molding process of the mold, feeding, plasticizing, injection molding, starting and ejection products, Custom Injection Molding And Plastic Molding such as all molding operations are automatically completed by injection molding machine, so that the injection molding process is easy to fully automate and realize program control. But we also need to see the inadequacy of plastic injection molding, due to the limitations of the cooling conditions, it is difficult to use this technology without defects, wall thickness changes and larger thermoplastic products, in addition because the injection molding machine and injection mold cost is very high, forming equipment start-up investment, so injection molding technology is not suitable for the production of small batches of products.

Plastic injection molding is an important method of plastic molding, Custom Injection Molding And Plastic Molding which has been widely used in production. It has the following characteristics:

① Molding cycle is short, can be formed in a complex shape, accurate size, with metal or non-metallic inserts plastic parts.

② is adaptable to forming various plastics. At present, in addition to fluorine plastics, Custom Injection Molding And Plastic Molding almost all thermoplastic can be used in this way, some thermosetting plastics can also be used plastic injection molding.

③ production efficiency is high, easy to automate production.

④ Plastic injection molding requires expensive equipment, mold structure is more complex, high manufacturing costs, so plastic injection molding is particularly suitable for high-volume production.

Plastic Injection Molding Type: A injection molding: plastic material first in the heating cylinder of the injection molding machine heated melt, and then from the reciprocating screw to push the melt into a closed mold cavity in the mold forming a method. It is not only in high productivity to produce high-precision, Custom Injection Molding And Plastic Molding high-quality products, but also machinable plastic varieties, large production (about 1/3 plastic total) and wide use, therefore, injection molding is one of the important molding methods in plastic processing. B Extrusion: Extrusion is in the extruder through the heating, pressure and plastic in the flow state continuous through the mouth molding method. Generally used for plate. Pipe。 Monofilament。 Flat wire. Film。 Wire and cable cladding, such as the formation of a wide range of uses. High yield. Therefore, it is one of the important molding methods in plastic addition. C Foaming Molding: Refers to the foaming material to add the appropriate foaming agent, the production of porous or foam products of the add-way foam products with relatively small density, higher than the strength, Custom Injection Molding And Plastic Molding less raw materials and noise, insulation, such as volts, foam materials have PVC, PE and PS. Products are: Film, sheet, pipe, and profiles. Foaming can be divided into chemical foaming and physical foaming. E Blow molding: blowing (bulging film) plastic (or hollow blow molding) refers to the use of fluid (compressed air) pressure will be closed die hot thermoplastic parison or sheet blown into a hollow product of a molding method. Custom Injection Molding And Plastic Molding A plastic container produced in this way. such as a variety of bottles, square, round or flat barrels, petrol tanks have been widely used, the new development of a variety of industrial parts and products, such as double wall box-shaped products, l-ring round barrels. Pallet. Surf board. Seat backrest and desk, as well as car used front spoiler. Belt Hood. Dashboard. Air conditioning and ventilation pipe, etc., has been applied in practice, the processing materials from the daily plastic to engineering plastics development. Now blow molding method has become one of the important molding methods in plastic processing. But the basic steps of the blow molding process are: 1. Melting material. 2. The molten resin is formed into tubular or parison. 3. Melt the hollow parison into the molding mold. 4. Blow the mold parison. 5. Cooling blow Molding products. 6. Remove the product from the mold. 7. Trimming. F Injection Blow Moulding: Injection blow molding is a blow molding method. The plastic is made into a bottom-shaped billet by injection molding, and then moved into a blow moulding mould to make a hollow product. This method can be produced for daily use. Cosmetics。 Medicine。 Custom Injection Molding And Plastic Molding Food and other packaging containers. But its volume should not exceed 1L. Commonly used plastics have polyethylene. Polystyrene and polyvinyl chloride. G Extrusion blow Molding: Extrusion blow moulding is a blow molding method. Different from injection blow molding. Its parison is made of extruded method. H Tensile blow molding: Tensile blow molding is a blow molding method. It is extruded. Injection molding and other methods made of Parison. The Parison is then heated to the tensile temperature. Longitudinal stretching is performed by internal (e.g., mandrel) or external (e.g., fixture) mechanical force. At the same time or later compressed air blown up and transverse stretching.


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