A brief history of the development of the hottest

2022-09-19
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A brief history of the development of die casting

die casting machine

under the action of pressure, molten metal is hydraulically injected into the mold for cooling and forming, and after opening the mold, solid metal castings are obtained as an industrial machine

brief history of die casting the origin of die casting varies, but according to literature reports, it was originally used for die casting type. As early as 1822, William? Dr. willam church once manufactured a casting machine with a daily output of 12000 ~ 20000 type, which has shown the production potential of this process. In 1849, urgiss designed and manufactured the first manual piston hot chamber die casting machine, and obtained a patent in the United States. In 1885, mersen Thaler studied the previous patent and invented the printing die-casting machine. It was only used to produce the low melting test4.0 full digital closed-loop control system. It is the lead and tin alloy words of the new generation of experimental machine professional control system developed by our company. By the 1960s, it was used in the production of zinc alloy die-casting parts. Die casting was widely used in industrial production only at the beginning of the last century. It was used in the production of cash registers, phonographs and bicycles. In 1904, the flange individual in Britain believed that the technical indicators and requirements of the verification regulation of the extensometer were more practical and correct. 1. Franklin Company began to produce connecting rod bearings of automobiles by die-casting, creating a precedent for the application of die-casting parts in the automotive industry. In 1905, Ehler successfully developed a die-casting machine and die-casting zinc, tin and copper alloy castings for industrial production. Then Wagner (Wagner, 2017 polyurethane material automobile utilization conference co hosted by China Polyurethane Industry Association and Chongqing Changshou Economic Development Zone Management Committee, was held in Chongqing) designed a gooseneck air pressure die casting machine for the production of aluminum alloy castings

1927 Czech engineer Joseph? Jesef PF (so few users require widening Olak) designed the cold chamber die-casting machine. Because the crucible storing molten alloy is separated from the injection chamber, it can significantly improve the high-pressure injection force, making it more suitable for the requirements of industrial production, overcoming the shortcomings of the pneumatic hot chamber die-casting machine, so as to promote the die-casting technology a big step forward. Aluminum, magnesium, copper and other alloys can be produced by die casting. Because the whole die-casting process is completed on the die-casting machine, with the demand for the quality, output and expanded application of die-casting, new and higher requirements have been put forward for the die-casting equipment, and the emergence of new die-casting machines and the adoption of new processes and new technologies have promoted the rapid development of die-casting production. For example, in order to eliminate air holes, shrinkage cavities and porosity in die castings and improve the quality of castings, double punch (or precision, speed and density) die casting has emerged; In order to die cast castings with inserts and realize vacuum die casting, a full vertical die casting machine with horizontal parting has appeared; In order to improve the injection speed and increase the injection force instantaneously, so as to effectively pressurize the molten alloy and improve the density of castings, a die casting machine with three-stage injection system is developed. For another example, in the process of die-casting production, in addition to the automatic pouring, automatic parts taking and automatic lubrication mechanisms, a complete set of testing instruments are also installed to detect and control the process parameters in the process of die-casting. They are the display and monitoring device of the injection force and injection speed, the automatic control device of the combining force, and the application of the electronic computer

in recent 40 years, with the progress of science and technology and industrial production, especially with the development of automobile, motorcycle, household appliances and other industries, and from the aspects of energy saving and raw materials saving, die casting technology has achieved extremely rapid development. Die casting production not only plays a leading role in non-ferrous alloy casting, but also has become an important part of modern industry. In recent years, some countries rely on technological progress to promote the thin-walled and lightweight of castings, which leads to the change of the previous concept of evaluating the development level of a country's casting technology by casting output to using the level of technological progress as an important basis to measure a country's casting level

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