Current Status and Development Trend of Aluminum Extrusion Abrasive Tool Technology at Home and Abroad

At present, the world's aluminum processing technology and equipment are developing in the direction of large-scale, modern, precise and production line automation. According to statistics, more than 7,000 extruders of different types, structures, uses and pressures have been equipped in countries all over the world, including more than 600 in the United States, more than 400 in Japan, more than 200 in Germany, more than 400 in Russia, and more than 3,000 in China. , Most of them are small and medium-sized extruders between 1525MN. The development of modern transportation industries such as subways and high-speed trains requires a large number of structural components such as integral wall panels, so the extruder is developing in the direction of large-scale. After decades of development, there are currently more than 20 large-scale extruders with a capacity of over 10,000 tons that have been officially put into use in the world. The countries owned by them are the United States, Russia, China, Japan and Western Europe.

At present, breakthroughs have been made in the technology of large-scale high-quality gardens, flat extrusion cylinders and special abrasive tools. From the perspective of design calculations, structure selection, loading and unloading methods, molding technology, new material development, and improving the life of abrasive tools, the extrusion tool and abrasive tool technology has developed greatly. For example, tongue molds, plane split combined molds, fork frame molds, front chamber molds, flow guide molds, detachable molds, wide spread molds, water-cooled molds, etc. have been developed. At the same time, various forms of movable mold bases and automatic tooling have been developed. The loading and unloading mechanism greatly simplifies the loading and unloading operations of tools and abrasives and saves auxiliary time. In recent years, Russia, the United States, Germany, Japan and other countries have developed large flat extrusion cylinders with specific pressures of 850MMX330MM, 1100MMX330MM, etc., with a specific pressure of more than 600MPa, and the service life is said to be about 10,000 times. my country has developed a large-scale high-quality flat extrusion cylinder of 670MMX2700X1600MM. Great progress has also been made in the automation and rapidization of loading and unloading of large extrusion tools, creating conditions for full automation.