Auto mold
2008-08-20

Automotive molding (car body molding) are decorative and protective moldings on the car body. The term applies both to the detail and the material. Auto moldings include side body molding, lower body molding, door moldings, window moldings, footrest molding, etc. Various car moldings must have high scratch resistance, weather resistance and gloss matching that of the car body. A common material which provides these is polyvinyl chloride. The condition of auto mold material Auto industry is a representative of a national industrial level, and automotive mold industry is the basis of automobile industry processing. Automobile manufacture has the characters of fast-paced, high efficiency, so it requires that the mold must ensure parts of the die size is stable, reliable, and also meet the requirements of life. Otherwise, if a set of sub-module has some problems on punching production line, it may cause the entire production line stop working. So it requires that die design to be reasonable, die steel we choose must meet the technical indicators. Some car parts not only have large size, but also complicated shape, which make heat treatment of mold be very difficult, such as stamping mold need to have a hardened treatment and a big capacity Vacuum Furnace quenching. In addition to steel metallurgical factory, the general professional heat treatment enterprises do not have this equipment. In addition, the large size engineering plastics parts of mold cavity and core which automobile used, also exist this problem, so some large-scale Die hardware mostly use inlay structure to resolve . At present, many steel companies produce mold steel in china, some brand steel such as cold-worked steel Cr12Mo1V1 of the Great Wall Steel Factory, mold steel 3Cr2NiMo of Fushun Special Steel Factory, hot-worked steel 4Cr5MoSiV1 of Daye Steel Factory. Although some domestic steel factories accept all kinds of foreign steel orders, the kind of domestic mold steel market is not complete. Take the auto mold steel as an example, we should smelt and forge 6Cr5NiMoV flame hardened steel to resolve the problem which is difficult to quench by large-scale mold, the hardness of this steel is 290 ~ 320 HB. For stamping dies, after heating up to 900 ¡æ by neutral flame in work surface, then cool down by air, its hardness up to 60 HRC, hard-layer 3 ~ 4 mm. This kind of steel is also used to make mold core and cavity for large-scale plastic mold. We can use flame-hardened technology if you want to increase the hardness. Auto mold fair The 12th China International mold technology and equipment exhibition had hold in May 12, 2008 in Shanghai New International Export Center which is the largest scale in Asia. It’s about thirty thousand square meters, and many molds were showed home and abroad. Italy mold companies showed their Europe mold manufacturing technology that was the first time in Asia. World-level auto mold enterprises-General Mold Company, Korean mold companies had showed the advanced manufacturing technology of punching continuous mold, casting mold, plastic mold. Auto mold main force in our country including FAW die manufacturing Co.,Ltd, Dongfeng Motor Co,.Ltd, Tianjin Automobile Co., Sichuan-fly integration Technology Co., Ltd., SiChuan Yibing Pushi Co,.Ltd, Hafei Motor die manufacturing Co,.Ltd, The Great Wall Mold Co, Rui Hu car Co., Beijing auto Futian Automobile Co., Ltd. Weifang Die Factory, Beijing BYD Co., Shanghai Yi Feng Group Dies, which will show our whole force. Haier Corporation Die representative of plastic mold enterprises, Wuxi GuoSheng Precision Mould Manufacturing Co., Ltd. Representative of precision punching mold enterprises, Guangdong Julun mold group Co,.Ltd. representative of tire mold enterprises, Ningbo Beilun die casting and Ningbo Heli Die Co,.Ltd. representative of die casting enterprises, Tongling Sanjia Die group Co,.Ltd. representative of extrusion mold enterprises, they had showed their mold represents in the exhibition, and showed the new face of our mold industry. Machine tool industry of mold manufacturing equipment was a good year in 2007, its output value was up to £¤2000 billion. Machine tool expenditure in our country is up to $160 billion, among these, the output value of machine tool was $90 billion, and import was $71 billion. We are the largest machine tool expenditure country and import country six year in a row, and the total import of processing center, grinding machine, special processing machine tool, lathe was more than a half of meter processing machine tool¡£The import of cutter was $9 billion, increased 15% than last year. Most of numerical machine tools what mold industry need were high-tech numerical equipment and cutter, and the imported products was more than half of the total. The mold processing equipment exhibition area was up to 55 thousand square meters which was the important aspect in this international exhibition. This exhibition collected many international well-known mold processing equipment factories, for example, Makino , Okuma, Yamazaki Mazak, Mori Seiki, Mitsubishi, Toshiba in Japan, DMG, Silaifulin in German, Haas in America, FIDIA in Italy, Nicolas in Spanish, ANCA in Australia and so on. The world famous factories of other cutting equipment, precise electrical processing equipment, cutter, material and soft also participate this exhibition actively, for example, actspark company, sodick company, hexagon company, sandvik company, Israel Iscar cutter, Japanese Toshiba tool company, BIG, and Hitachi company, German Zeiss company, England LK company, COORD3, Delcam company, HongKong Longji company and so on. Beside, Beijing Machine Tool institute, Hangzhou Machine Tool Group Co., Ltd., Suzhou Machine Tool Institute, Shanghai cutting tool factory, Shanghai Baosteel Group Corporation, these factories would show their newest products in this exhibition. The 12th China International Mold Exhibition will hold several high-level conferences and forums in 2008 continually, it will be more connotative, content, Multidimensional, comprehensive and colorful. Portugal, Malaysia, Korean, Philippines, Iran will attend this exhibition.