At present, the world's aluminum processing technology equipment is developing in the direction of large-scale, modernization, precision and production line automation. According to statistics, there are more than 7,000 extruders of different types, structures, uses and pressures that have been equipped in various countries in 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 15 and 25 MN. The development of modern transportation industries such as underground railways and high-speed trains requires a large number of structural components such as integral siding, so the extruder is developing in the direction of large-scale. After several decades of development, there are about 20 large-scale extruders of more than 10,000 tons that have been officially put into production in the world. The countries that are owned are the United States, Russia, China, Japan and Western Europe.
At present, breakthroughs have been made in large-scale high-quality gardens, flat extrusion cylinders and special abrasive tools. From the aspects of design calculation, structure selection, loading and unloading method, mold making technology, new material development to improving the life of grinding tools, the extrusion tool technology has been greatly developed. For example, tongue molds, plane split combination molds, fork frame molds, front chamber molds, flow guide molds, removable molds, wide expansion molds, water-cooled molds, etc. have been developed, and various forms of movable mold bases and tools have appeared automatically. The loading and unloading mechanism greatly simplifies the loading and unloading operation of the grinding tool and saves the auxiliary time. In recent years, Russia, the United States, Germany, Japan and other countries have developed large-scale flat extrusion cylinders with a specific pressure of 600 MPa or more, such as 850MMX330MM and 1100MMX330MM, which are said to have a service life of about 10,000 times. China has developed a large-scale high-quality flat extrusion tube of 670MMX2700X1600MM. Great progress has been made in the automation and rapidization of loading and unloading of large-scale extrusion tools, creating conditions for full automation.
At present, breakthroughs have been made in large-scale high-quality gardens, flat extrusion cylinders and special abrasive tools. From the aspects of design calculation, structure selection, loading and unloading method, mold making technology, new material development to improving the life of grinding tools, the extrusion tool technology has been greatly developed. For example, tongue molds, plane split combination molds, fork frame molds, front chamber molds, flow guide molds, removable molds, wide expansion molds, water-cooled molds, etc. have been developed, and various forms of movable mold bases and tools have appeared automatically. The loading and unloading mechanism greatly simplifies the loading and unloading operation of the grinding tool and saves the auxiliary time. In recent years, Russia, the United States, Germany, Japan and other countries have developed large-scale flat extrusion cylinders with a specific pressure of 600 MPa or more, such as 850MMX330MM and 1100MMX330MM, which are said to have a service life of about 10,000 times. China has developed a large-scale high-quality flat extrusion tube of 670MMX2700X1600MM. Great progress has been made in the automation and rapidization of loading and unloading of large-scale extrusion tools, creating conditions for full automation.
Hebei Xinteli hexagonal wire netting produced with superior quality of low carbon iron wire, normally galvanized or plastic coated for long life. The mesh is firm in structure and has flat surface. Hexagonal wire netting is extensively used in industrial and agricultural constructions. Also it can be used as fence for poultry cage, fishing, garden, children playground and Christmas decorations.
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