博文

目前显示的是 十月, 2019的博文

Different extrusion and injection molding processes in the production of plastic profiles

图片
Extrusion and injection molding processes are different in plastic profile production Plastic profile production process,  Plastic profile   extrusion  process  and  Plastic profile   injection  molding process  is the most common two kinds of plastic processing process, which steps of their production process, the production process between the two is different? Plastic profile extrusion process: in plastic processing, also known as extrusion molding or extrusion, in rubber processing, also known as pressure out. It refers to a processing method in which the material is made into various cross section products or semi-products continuously through the head of the extruder through the action between the barrel and the screw while being thermoplasticized and pushed forward by the screw. Extrusion is used in the processing of thermoplastic plastics and rubber, which can be used for batching, granulating, rubber material filtering, etc.,...

What are the advantages of antistatic plastic profile products?

图片
What are the advantages of antistatic plastic profile products? Following the China Custom Plastic Injection Factory would like to share with us. Anti-static plastic profile products are made of POM plastic particles which are extruded at high temperature by extruder. It is a kind of high melting point and high crystallization thermoplastic engineering plastics. Due to its excellent properties, POM plates are ideal for machining on automatic lathes, especially for manufacturing precision parts. Antistatic plastic profile products are a smooth, shiny hard and dense material, light yellow or white, can be used in the temperature range of -40-100 °C for a long time. Its wear resistance and self - lubrication than most engineering plastics are superior, and good oil resistance, resistance to peroxide performance. Very resistant to acid, strong alkali and ultraviolet  radiation from moonlight. Anti-static plastic profile product bar is a crystalline plastic, melting poin...

What are the solutions for the appearance of bubbles in plastic profiles?

图片
Plastic profile bubble solution? Here the  plastic extrusion supplier . Bubble often occurs in the plastic profile products at the end of the joint or thicker parts of the product. The product is first cooled on the surface in the model. When the outer surface is cooled, the central part is still in a hot state. The core shrinks as it cools, while the surface of the plastic has cooled, so it contracts on its own to form bubbles. There are many thick pieces that have no bubbles at the time of exit, but after a few seconds, bubbles appear at the center. Plastic profile bubble problem is caused by those reasons, the following to see One: thicker products, surface fat and bulge, saw section has bubbles, the reason may be: 1) the injection speed is too fast to envelop the air and cannot be eliminated, forming bubbles. 2) too much or too little feeding amount and too high injection pressure will also produce this phenomenon. If the feeding amount is appropriately adjusted, ...

Advantages of extensive application of extrusion plastic profile in the building materials industry

图片
Extrusion profile products can replace steel and wood in the building materials industry, and have excellent performance unmatched by some traditional building materials, which can significantly save energy, protect the environment, improve living environment and conditions, and improve building functions. With the continuous improvement of  Extrusion Plastic Profile  building materials technology, its promotion and application will surely develop rapidly. At present, extruded profiles are already in a very important position in modern architecture. Because of its rich color, strong decoration, not afraid of moisture, not afraid of insects, easy to install, disassemble, and clean, it is widely used in the interior decoration industry and is favored by people. 1. Flame resistance: Plastics are generally flammable, which is a weakness when used as a building material. Some plastics are not only flammable but also accompanied by the release of toxic gases and a large amou...

Factors which affect the basic process of plastics

图片
Factors affect the basic process of plastics shared by  Custom PE Plastic Extrusion Profile  supplier. The heating elements We know that extruded plastic is hot plastic, which melts when heated and solidifies again when cooled. Melt plastic heat, mainly feed preheating and cylinder/mold heater from the role. But the motor can also input energy -- the motor can overcome the resistance of the viscous melt, and the friction heat generated in the cylinder when rotating the screw is the most important heat source for all plastics. For all other operations, it should be known that the cylinder heater is insufficient. The main heat source in operation, the temperature of the rear cylinder, is probably still the most important because it affects the speed at which solid material is transported in the gear or feed, and the die head and die temperature should normally be melt temperature or close to it. Therefore, we should keep in mind that the thermal degradation of thermoplas...