Plastic processing technology
Also called plastic molding processing. Is the conversion of synthetic resin or plastic to the floorboard of the various process of plastic products, is a major production department in plastic industry. Plastics processing generally includes ingredients, molding, mechanical processing, joint, modification and assembly, etc. After four working procedure is in the plastic molded products or semi-product, also known as the plastic secondary processing.

ingredients
Raw materials used in the plastic processing, in addition to the polymer, general to join all kinds of plastic additives (such as stabilizer, plasticizer, colorants, lubricants, strengthening agent and packing, etc.), to improve the molding process and products using performance or reduce the cost of products. Additives and polymer by mixing evenly dispersed to powder, also known as dry mixing. Sometimes powder still need classics plasticate processed into aggregate. This batch of powder and granular materials referred or molding compound.

The molding
The key link of plastic processing. Will be in the form of various plastic (powder, granular materials, solution or dispersion) made from the shape of the products or parts is required. As many as 30 kinds of forming methods. It mainly depends on the choice of the type of plastic (thermoplastic or thermosetting), starting form and shape and size of products. Commonly used methods for processing thermoplastic extrusion, injection molding, calendering, blow molding and thermoforming, processing commonly used thermosetting plastic moulding, transfer molding, injection molding are also employed. Laminating, molding and thermoforming is made of plastic forming on the plane. The plastic processing method, all can be used in rubber processing. In addition, there is in a liquid monomers or polymers as raw materials of casting, etc. In these methods, in order to extrusion and injection molding used most frequently, is also the most basic method of forming.


joint
There are three methods for the plastic joint up welding and adhesive. Welding is the use of hot air welding electrode, using hot very hot melt welding, as well as the high frequency welding, friction welding, induction welding, ultrasonic welding, etc. Bonding method can be used in adhesives, divided into the solvent, resin solution and hot melt adhesive.

Surface modification
Purpose is to beautify the plastic products surface, usually include: mechanical modification, file, grinding and polishing process, remove burrs on the parts, burrs, and the correct size, etc.; Finishing, including coating coated on the surface of parts, solvent increase surface bright, with decorative pattern film on the surface of the products; ShiCai, including painting, printing and hot stamping; Metallized, including vacuum coating, electroplating and chemical plating silver, etc. Under which hot stamping is in heat, pressure, hot stamping film on the color of the aluminum foil layer (or other decorative pattern membrane layer) transferred to the parts. Many household appliances and daily necessities, such as building products are using this method for metallic luster or pattern such as wood.

assembly
With bonding, welding and mechanical connection method, make plastic parts assembled into complete products made of homework. For example: plastic material, after cutting, welding, drilling, steps such as assemble into plastic window frames and plastic door