Recently, the unveiling ceremony of the "Chinese auto parts (filter) manufacturing base" was held in Handan City, Anhui Province. According to reports, in the 50s of last century, Handan Tractor Accessories Factory was the first company specialized in producing automotive filters in China. Handan City has thus become one of the birthplaces of China's filter industry. After years of development, the city now has more than 130 filter manufacturers and more than 12,000 employees; the products cover nearly a thousand varieties, including 10 kinds of diesel filters, fuel filters and air filters. There are 1 state-level leading enterprises, 1 Chinese famous brand, and 1 national torch project. In 2010, sales of the filter industry reached 4 billion yuan. At present, Handan City has become the largest sales and export base of the filter industry in China. It is expected that during the “Twelfth Five-Year Plan†period, through the combination of the combination of imported technology and independent development, adjustment of the structure, and expansion of scale, the total annual production of automotive filters in Handan will reach 400 million, and the total industrial output value will be close to 10 billion yuan.
Teflon is Polytetrafluoroetylene, referred to as Teflon, PTFE, F4, etc.It is also known as Teflon, Teflon, Teflon, Teflon and so on because of its pronunciation.Polytetrafluoroethylene (ptfe) is a kind of plastic, which is used to manufacture heaters. It has been successfully used in chemical equipment heating. It has the characteristics of multi-layer and three-dimensional heating.
The working pressure, working temperature, heat transfer coefficient and installation method of the teflon heater vary greatly according to different types, different shell materials and different thermal media.The chemical properties of teflon are very stable and the corrosion resistance is especially good.The surface of the teflon tube is smooth and moderately flexible, so it is not easy to scale due to the slight vibration when using it.The teflon heater is small in size and compact in structure. The heat transfer area per unit volume of the equipment is more than 4 times of that of the shell heater.Flexible teflon tubes work safely under shock and vibration of fluids, and the tubes can be made into special shapes as needed.Teflon has low thermal conductivity, poor mechanical properties than metal, and is not resistant to high temperature.The use of small diameter, thin wall, although the thermal conductivity and mechanical properties of compensation, but can only be used in the case of low pressure and low temperature.The production of teflon steam heater and teflon hot water heater has become more and more mature, and widely used in chemical industry, medicine, pickling and other corrosive industries.
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