History of metal extruder

History of metal extruder

In 1931, Germany used a mixture of graphite and mineral oil as a lubricant in the mechanical extrusion press hot extrusion steel tube success. However, the use of graphite in high temperature carburizing, can only produce carbon steel pipe, thus hindering the development of the process. In 1938, French Comptoird Etirage company began to use glass lubricant to do the test of hot extrusion steel pipe, in 1942 obtained the patent, this patent was soon bought by the United States, Britain, Japan, Spain, Austria, Germany, Sweden and other countries. In 1951, the world's first hot extrusion workshop for steel with glass as lubricant was built and put into operation in Babcock-Wilcox Company in the United States. The extruder is horizontal hydraulic transmission, and the extrusion pressure is 27MN. In the following 10 ~ 15 years, the construction of steel hot extrusion workshop has been developed rapidly. The extrusion pressure of the early built hydraulic extruder is generally 10 ~ 20MN, most of them are 30 ~ 50MN, and the maximum extrusion pressure of the hydraulic extruder has reached 100 ~ 350MN. China built 31.5MN horizontal hydraulic extruder in 1973 in Great Wall special steel mill, mainly producing stainless steel pipe and thick wall alloy structure steel pipe, bearing steel pipe. The 16MN and 15MN horizontal hydraulic extruder, designed and manufactured in China, were built in the mid-1970s in Great Wall Special Steel Works and Shanghai special-shaped steel Tube Works respectively to produce special-shaped stainless steel tubes and carbon steel tubes. In 2007, 125MN oil pressure double acting aluminum extrusion line was successfully developed by China Heavy Machinery Research Institute affiliated to China National Machinery Group, and put into operation in Liaoning Zhongwang Group. In 1999, Taiyuan Heavy Machinery Group company successfully developed 75MN aluminum extruder, and in 2003 successfully developed 75MN "short stroke" single acting horizontal aluminum extruder, since then, 50MN, 36MN, 27.5Mn single acting horizontal aluminum extruder have come out. In 2009, 100MN double-action horizontal short stroke pre-feeding aluminum extruder was successfully manufactured in Hehei Group And delivered to Qinghai Guoxin Aluminum Alloy Tube Bar Profile Co., LTD. In July 2009, China north industries group corporation jointly developed tsinghua university and other research institutes with 36000 tons of ferrous metals vertical extrusion machine has completed the first thermal debugging, successfully extruded 200 mm 700 mm outside diameter, wall thickness of seamless steel tube, marked the large diameter thick wall seamless steel tube manufacturing technology in our country every break the foreign monopoly, and reach the world advanced level