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Injection molding processing industry from injection plastic products

by:CSSSLD     2021-02-03
Wen injection tooling/VIP
coating is closely related to our life, make our life colorful. But the coating of voc ( Will produce harmful volatile organic compounds) To be reckoned with, has a free spray plastic products into the line of sight of furniture, home appliances and car companies, as the name implies, & other; Avoid spraying & throughout; Is this product appearance not by spraying with color, obviously the more environmentally friendly.

to achieve free spray specular injection, you first need to choose high gloss plastic material. For the characteristics of the material requirements generally include: materials of liquidity should be higher, in order to better copy mould surface, reduce the shear and improve weld line; Needs to have some scratch resistance, surface hardness is better, general pencil hardness on H above; Thermal stability of the material is better, not easy to produce volatile.

especially for flame retardant material, improve the heat resistance and reducing volatiles can prevent the corrosion of mould and reduce the product surface white mist; Material itself gloss is better; Should have excellent toughness and certain rigidity, through electrical appliances required drop testing and other functional test.

specular injection mold from design, selection of steel to mould processing has higher requirements than ordinary mould. Mold design aspects need to consider the design high temperature resistant, suitable matching waterway design and installation etc. Channel to ensure rapid heating and cooling and uniform mold temperature, close to the cavity of the commonly used with waterway, and heat insulation layer or use of space in the back. Mold gate design to reduce weld line as much as possible, and is advantageous to the exhaust and reduce shear. Of used oil heating mould machine mould, the gate size will bigger, on the other line, want to consider the requirements of high temperature in areas such as the coordination and guidance, and pay attention to heat insulation or cooling and cooperate. Requirements to achieve very high due to the mold surface finish ( Mirror effect) Should choose good polishing, so die steel, high purity, high degree of mirror and the thermal deformation of small high-quality steel, such as Swedish ASSAB S136, Japanese datong NAK80. If flame retardant highlights material, molding die steel still need good corrosion resistance, it is best to S136SUP or with grades of steel. For specular mould maintenance, should pay attention to in the use of timely clean the mold parting surface and exhaust slot, lest cause the venting is not good. In addition, should be clean regularly with a special clean cloth or paper mould mirror part, especially the injection flame retardant highlights material, must be removed adhesion in the mold surface deposition, lest appear white fog and other bad appearance. Injection molding is completed with a special cleaner cavity, and special spray anti-rust oil.


from injection plastic products production process is very simple, add colored metal powder in the plastic raw material, and then to the production processing, the plastic products was born with a color, don't need to be sprayed. Compared with other plastic products, this obviously avoid spraying plastic products more environmentally friendly. Avoid spraying plastic product's biggest advantage is to reduce the production cost of the downstream industry. Though it were 10% more expensive than ordinary products, car companies if the product instead of paint, will make the cost of automobile enterprises fell 20% 30%. Can effectively help enterprises to reduce production cost, it is urgently needed for the downstream enterprises.

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