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Metal magnesium, aluminum extrusion history
- Author:Libo
- Source:wwww.hellobodies.com
- Date:2021-06-11
- Click:0
Taiyuan heavy machinery group company in 1999 successfully developed 75MN aluminum extruder, and in 2003 successfully developed 75MN "short stroke" single action horizontal aluminum extruder, since then, 50MN, 36MN, 27.5Mn single action horizontal aluminum extruder came out. 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 2009, 100MN double action horizontal short stroke pre-feeding aluminum extruder was successfully manufactured in Heavy Group Company and delivered to Qinghai Guoxin Aluminum Alloy Tube Bar Profile Co., LTD. But the use of graphite in high temperature carburizing, can only produce carbon steel pipe, thus hindering the development of the process. 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. In July 2009, the Chinese press industry group company developed joint scientific research institutes such as tsinghua university with 36000 tons of dark look metal 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
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. The 16MN and 15MN horizontal hydraulic extruder, designed and manufactured by China itself, were built in the middle of the 1970s in Great Wall Special Steel Plant and Shanghai special-shaped steel Tube Plant respectively, producing stainless steel tube and carbon steel special-shaped and special-shaped tube. The extruder is horizontal hydraulic transmission, and the extrusion pressure is 27MN. China built 31.5MN horizontal hydraulic extruder in Great Wall special steel Mill in 1973, mainly producing stainless steel pipe and thick wall alloy structure steel pipe, bearing steel pipe. In 2007, 125MN oil pressure double acting aluminum extrusion production line was successfully developed by China Heavy Machinery Research Institute, and put into production in Liaoning Zhongwang group.
In 1931, Germany used a mixture of graphite and mineral oil as a lubricant in the mechanical extrusion press hot extrusion steel tube success.