Domestic and foreign situation of rubber extruder

In the production of rubber industry, the compound extruder is mainly used for the extrusion of tire compound tread, automobile sealant strip, colored bicycle tire tread, rubber hose compound and plastic compound extrusion, and multi-layer co-extrusion of rubber sheet, etc. The composite extrusion production process is an advanced technology in the production of the rubber industry. It can use different formulations and properties of rubber materials according to the different performance requirements of the products. The composite extrusion equipment can produce materials that can save materials and meet a variety of properties. products required.

Since the 1950s, some rubber machinery manufacturers in my country have successively developed hot feed extruders, which are widely used in tires, hoses, plastics and other industries. The development of pin cold feeding extrusion technology in my country began in 1984 and has a history of more than 20 years. After continuous improvement and perfection of thread structure, thread parameters, pin configuration and quantity, temperature control and feeding method, this technology has finally been recognized internationally. Pin-type cold feed extruders have become the dominant product in the extruder market. Because in the production of bias tires and radial tires, the production of tread, sidewall and apex rubber and other components mostly adopts compound extrusion technology. The material extruder also came into being. my country's compound extrusion technology has become more and more mature, and the design and manufacturing level of compound extruders has reached the international advanced level. It can not only provide compound extruders in various combinations, but also export to famous foreign tire companies.

The follow is the list：

• foreign situation

• Domestic status

foreign situation

There are 22 major foreign manufacturers of rubber extruders, mainly Germany Troester, Berstorff, Krupp, A-Z (VMI), Japan Nakata Engineering, Mitsubishi Heavy Industries, Kobe Machinery, Kobe Steel, Jinzhong Machinery, American Farrell, Davis Standard, Italian Pomini, Switzerland RCM, Imterplasti-ca, UK Iddor Brother and other companies.

German Trost Machinery Factory was founded in 1892, which is mainly devoted to the development and production of mechanical equipment such as tires, cables, sealing strips and conveyor belts. The company's screw-type rubber extruders (GS) are used by major rubber processing plants in Europe and other countries, and its rubber extruder output and production quality have been recognized as the industry standard for nearly a century. In the mid-1970s, Troste Company played a role in promoting the development of the QSM (cross-flow mixing) process, and developed the QSM pin-type cold feed extruder. Since then, this ever-evolving process has enabled tire manufacturers and other rubber product processors to process a wide variety of compounds with optimum plasticizing results, high yields, Good quality. As the QSM pin-type cold feed extruder is suitable for all compounds. Therefore, it has been rapidly extended to various industries in the rubber industry. In general, cold-feed rubber extruders have become the mainstream of development in developed countries such as Europe and the United States. By the early 1990s, cold-feed extruders in developed countries such as Europe and the United States had accounted for 95% of the total production. Developed countries such as Europe and the United States are developing and producing MTCD and other high-speed and precise new extrusion equipment.

Domestic status

With the emergence and wide application of cold-feed extruders, the application range of hot-feed extruders is gradually shrinking. rubber extruders have developed from hot feeding to cold feeding, and cold feeding pin-type extruders have become the mainstream of development. Pin-type extruders have been widely used in my country's rubber industry, involving tire treads, radial tire sidewalls, bead rubber, various hoses and inner liner films. The machines used are imported and domestically produced, the screw diameter is 85-250mm, and the length-diameter ratio is 12-16. Pin-type cold-feed extruders have many advantages over hot-feed extruders and ordinary cold-feed extruders. In the past ten years, it has been widely used in the production of my country's rubber industry, and its use has been continuously expanded. The pin-type cold-feed extruder introduced early in China is mainly used for the rubber core and lagging production process in radial tire tread rubber extrusion and rubber hose production. Most semi-steel and all-steel radial tire treads are produced by pin-type cold-feed extruders. In the production process of bias tires and other rubber products, many manufacturers have used pin-type cold feed extruders. In the production of rubber industry, the traditional production process is that the extruder is used as the molding extrusion process equipment. The pin-type cold feed extruder has been widely used in the calendering of steel wire and fiber cord due to its large extrusion volume and good plasticizing effect. Glue supply for machine and inner liner film calendering machine. In recent years, the pin-type cold feed extruder has also been popularized for filter rubber, and has been well received by users.

Seahawk Machinery have Plastic machines include PE Foam Tube/Rod Extrusion line, CF-RTP pipe production equipment, PE high-yield pipe production equipment, PVC water supply and drainage, one-out two-pipe equipment, PP-R single-layer, composite production equipment, PE-RT floor heating pipe production equipment and etc.