Sheet extruder head and die: the head by steel and carbon steel inner sleeve jacket structure, built with mold nose. The role of head of the rotary motion of the plastic melt into a parallel linear motion, uniform steady import die sets in, and given the necessary plastic molding pressure. Plastic barrel plastics compaction, neck and head through the porous filter plate mold flow into the nose along a certain runner through the core die sets appropriate with the formation of the annular space section constantly decreasing, the plastic melts forming a continuous dense tubular cladding layer surrounding the core wire. To ensure the plastic flow path within a reasonable head, eliminating the accumulation of plastic corners, often shunt placement sleeve, pressure fluctuations for the elimination of plastic extrusion, also set up the equalizing ring. Machine head is also equipped with mold correction and adjustment device, easy to adjust and correct punch and die sets concentricity. (1) now extruder usually is electric heating, resistance heating and induction heating divided, the heating plate mounted on the body, neck machine, each part of the handpiece. Heated by an external heating means of the plastic tube, so as to heat up, temperature of the process in order to achieve the desired operation. (2) cooling means is in the process of plastic in order to ensure the required temperature range settings. Specifically, in order to remove excess heat generated by friction shear screw rotation to avoid overheating the plastic decomposition, scorch or stereotypes difficulties. Cylinder water-cooled and air-cooled cooling is divided into two kinds, most small and medium extruder using air more appropriate, a large multi-use water or the combination of two types of cooling; water-cooled screw cooling centers mainly aimed at increasing the rate of transport of solid materials stable volume of the plastic, while improving product quality; but in the cooling hopper, one in order to strengthen the role of transport of solid materials, to prevent heating the plastic spout grain sticky jam pc sheet device, the second is to ensure that the transmission part working properly. Second, the auxiliary equipment features: Water resistance: Closed cell structure, non-absorbent, moisture, good water resistance. Corrosion resistance: resistant to water, oil, acid, alkali and other chemicals, corrosion, anti-bacterial, non-toxic, tasteless, non-polluting. Processing: and easy to carry out pressing, cutting, gluing, laminating and other processing. Anti-vibration: high elasticity and tensile strength, toughness, good shock / buffer performance. ? Insulation: Excellent insulation, thermal insulation and cold temperature performance, resistant to cold and exposure. Sound insulation: Closed cell, good sound effects. ? Obviously the main ingredient is EVA, of course, in order to improve the physical properties of the product, you can also add some other materials appropriate ps sheet equipment, such as rubber, POE, masterbatch, etc., also can even add a little to enhance certain TPR physical properties. EVA does, the main indicator is the VA content, which determines the level of almost all properties have a direct relationship with EVA foam products. Of course. Some can only PE foam. What Ingredients to look at the specific requirements of the product used. Fillers, the current general use of calcium carbonate or talc. Its use in and reduce costs, increase product rigidity, etc., but also from the point the thermal effect. Generally the particle size as quality indicators (of course, the water content is on the one hand), for example, 120 mesh, 400 mesh and so on. In principle, the more detailed the better, of course, the price will be higher. The maximum amount have ever seen in my formulation 40Phr (amount based material percentage) blowing agents are generally accustomed to AC series of foaming agent, such as AC-3000H, AC series are high-temperature foaming agent foaming agent, decomposition temperature of over 220 degrees. There are also low temperature blowing agent sheet equipment, such as AD-300, decomposition temperature 140 degrees, as well as temperature and foaming agents. Because the price difference is not large abs sheet devices, and high-temperature foaming agent will be relatively stable, and therefore many old do have to switch to a high temperature of EVA, and also with use. With three presses (Figure) | abs sheet equipment | sheet equipment supplied by the same three-Plastic Machinery Co., Ltd. Qingdao. Plastic Machinery Co., Ltd. Qingdao with three (www.tongsansuji.com) adhere to the "people-oriented" business philosophy, has a professional staff, and strive to provide the best products and services to contribute to the community, and to welcome new and old customers to visit us, sincere cooperation for a better future. With three presses - your trusted friend, Company Address: Shandong Qingdao Jiaozhou Road, the western end of Yangzhou, Contact: Zhaopei Qing.