巴斯夫集团在欧洲、、南北美洲的41个国家拥有**过160家全资子公司或者合资公司。公司总部位于莱茵河畔的路德维希港,它是世界上工厂面积的化学产品基地。
BASF Group has more than 160 wholly owned subsidiaries or joint ventures in 41 countries in Europe, Asia, North and South America. Headquartered in Ludwig harbour on the Rhine River, the company is the largest chemical product base with factory area in the world.
It is characterized by good acid resistance, good salt resistance, high temperature resistance to water and salt, high temperature resistance to water and salt, good resistance to water and salt, good resistance to water and salt, good resistance to water and salt Use, but not resistant to strong acid and alkali. It is resistant to carbon tetrachloride, and swells in dichloroethane, some in aromatic hydrocarbon and acetic acid. Among the modified PBT, 92% is reinforced by glass fiber, and the properties of the modified PBT are outstanding: ① excellent heat resistance, long-term service temperature of 125 ℃, short-term service temperature of 210 ℃; ② high mechanical strength, small deformation under long-term high load; ③ low water absorption, good dimensional stability and excellent friction and wear resistance
PBT加工工艺:PBT快的充填速度,一般会使流程加长,适合填充薄壁型材,并形成叫好的表面光洁度.PBT对于厚壁制品,慢速充填有助于减少空隙.PBT当使用窄浇口时,壁厚段的充填速度应减低,以帮助保压.PBT对于小浇口(针尖形浇口)的制件,建议采用程序,开始时可使用较慢的速度,一减少剪切,漩纹和物料的烧焦.PBT 通常我们建议PBT采用中高速的速度,以便提高表面光光泽度和提高接合线强度.量:建议量为机器容量的35%~85%,对于颜色控制严格的混合牌号,PBT建议量尽可能接近机器容量的63%,以减少滞留时间
The development of PBT: PBT was first developed by German scientist P. Schlick in 1942. Then Celanese company (now Ticona) in the United States carried out industrial development and listed under the trade name of celanex. In 1970, it was put on the market with 30% glass fiber reinforced plastic, the trade name was x-917, and later changed to celanex. In 1971, Eastman company launched a glass fiber reinforced chain and non reinforced products, trade name tenite (ptmt); in the same year, GE company also developed similar products, with three varieties of non reinforced, reinforced and self extinguishing. Subsequently, world famous manufacturers such as BASF, Bayer of Germany, GE and Ticona of the United States, Toray of Japan, Mitsubishi Chemical of Japan, new optical fiber of Taiwan, Changchun artificial resin, South Asia plastics and other companies successively put into production. There are more than 30 global manufacturers.
生产厂家:1970年美国的泰科纳公司将其商品化。**主要的有美国基础创新塑料、美国杜邦的Crastin、日本的、日本三菱工程的Novaduran、日本东丽的Toraycon、德国巴斯夫的Ultradur、德国朗盛的Pocan、美国泰科纳的Celanex,中国主要的生产厂家有闽台长春、闽台新光、闽台南亚等,目前中国使用为广泛的是闽台长春的PBT。
PBT is widely used in electronic and electrical fields, accounting for 50% of the total production of PBT: Computer / electrical connector, contactor, coil framework, connector, relay, fuse, regulator, temperature control switch, temperature control protector, decorative lamp holder, switch socket, induction cooker chassis, heater outlet, radiator fan wing, transformer coil framework, high voltage and high current Voltage break switch framework, computer fan, energy-saving lamp cap, electrical switch, electronic ballast , hair dryer, electric oven, rice cooker, microwave oven, water pump accessories and electric tool accessories, etc.; the application of PBT in automobile field accounts for 30% of the total production of PBT; it is mainly used for distributor cover, rotor, ignition coil cover, wiring terminal and transmission of high-voltage contactless igniter Sensor box, front and rear lamp holder, integrated circuit box, micro motor back cover, air-conditioning fan, etc. the application of PBT communication field accounts for 20% of the total production of PBT. It is mainly used in the integrated module, wiring board, capacitor and antenna sheath of program-controlled telephone
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