On June 29th, 2011, at the Seminar on Auxiliary Machine Mixing Technology under the Enhanced Internal Mixing Machine held by the Tire Branch of the China Rubber Industry Association, Triangle Group Co., Ltd., Airsoft Co., Ltd., Yiyang Rubber & Plastics Machinery Group Co., Ltd., and The low-temperature first-stage smelting technology developed by companies such as Tuo (Qingdao) Tire Technology Co., Ltd. and Guangzhou Huagong Baichuan Technology Co., Ltd. has received extensive attention from tire companies and has been promoted. This technology achieves a 20% reduction in electricity consumption per ton of plastic and an increase of more than 200% in production efficiency. This brings a revolutionary technological breakthrough for energy saving and emission reduction in China's tire industry.
The rubber refining process is one of the most energy-intensive processes for tire production, accounting for approximately 40% of the energy consumption of the entire tire production process. The low-temperature one-step refining process changes the traditional multi-stage mixing to one-time mixing. After the mixture is high-temperature-blended with an internal mixer, it is cooled by the first open mill and distributed symmetrically through the central delivery system. Multiple cold mills are continuously mixed around the open mill to obtain the final rubber directly. The entire process enhances the mixing of the auxiliary machine, and the entire process is automatically controlled. The new process reduces the intermediate transfer link of the rubber compound, thereby reducing the amount of space occupied by the rotary rubber compound and saving an area of ​​1/2 or more; it greatly saves the time for mixing plastics, shortening the time for converting raw materials into rubber compound from 12 hours to 30 minutes, greatly saving the cost of raw materials for the company. Because only one temperature increase process, rubber compounding is completed at a low temperature, so the process of plastic consumption of this process is reduced by about 20%.
According to Wang Baojiang, a technician from Delta Group, the process has reduced the number of plastic mixing, prolonged the mixing time at low temperatures, and increased the mixing time of the mixture, which can greatly improve the physical properties of the rubber, the dispersion properties of carbon black, and the dynamic mechanical properties. And so on, effectively improve the rubber material performance by more than 15%. The tires manufactured through this process have undergone a road test for on-the-spot loading, significantly improving wear performance and increasing wear mileage by 7.2%. After this process was applied, the energy consumption in the triangle was reduced to 870 kg/standard ton of coal/ton, which was much lower than the current industry average of 1100 kg/standard ton/ton of plastic, reaching the world's advanced level.
Professor Chen Zhihong of the Beijing Rubber Industry Research and Design Institute recommends that enterprises further improve a mixing process, and equipment manufacturers cooperate with the development of corresponding equipment that is both practical and affordable and that auxiliaries should actively develop granulation products such as coated sulfur. . He also suggested that the radial tire production enterprises should implement the transformation as soon as possible on the basis of the traditional rubber mixing technology, and the new construction enterprises should adopt new techniques to build according to regulations.
The powerlifting barbell bar is designed for athletes to perform heavy squats, bench presses and deadlifts. It feels hard and does not store elastic energy. The diameter is also thicker (29mm) than the Weightlifting Barbell Bar.
Powerlifting Competition Bar / Powerlifting Training Bar / Best Powerlifting Bar / Powerlifting Bar 20 Kg
SHANDONG LE REN SPECIAL STEEL CO., LTD. , https://www.sdthreadedrods.com