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Development history of injection molding machine
time2019/02/28
- In 1932, the German FRANEBRAUN factory manufactured an automatic plunger horizontal injection machine. With the development of the polymer industry, the injection molding process and injection molding machine have also been continuously improved and developed.
In 1932, the German FRANEBRAUN factory manufactured an automatic plunger horizontal injection machine. With the development of the polymer industry, the injection molding process and injection molding machine have also been continuously improved and developed.
In 1948, the screw plasticizing device was used on the injection molding machine, and the world's first reciprocating screw injection machine was manufactured in 1956. This is a major breakthrough in injection molding technology, so that more polymer materials are used for comparison The economical injection molding process has effectively promoted the development of the polymer material processing industry and polymer material processing machinery. It has been more than 50 years since the technical innovation of the 1950s introduced the screw-type plastic injection molding machine. Since the advent of the injection machine, the clamping force is 1000-5000kN, and the injection volume is 50-2000g. most.
In the late 1970s, due to the development of engineering plastics, especially in automobiles, ships, aerospace, machinery and large household appliances, the large-scale injection machine has been rapidly developed. The United States is the most obvious.
In 1980, about 140 large-scale injection molding machines with a clamping force of more than 10,000 kN were put into the towel yard,
and by 1985, it had increased to more than 500. Japan's famous machine company has successfully manufactured the world's largest injection molding machine with a clamping force of 120,000kN and an injection volume of 92,000g.
It has been half a century since the development of the original injection molding machine. At present, 80% of the engineering plastics industry has adopted injection molding. In recent years, due to the growing needs of industries such as automobiles, construction, household appliances, food, and medicine, the development and improvement of injection molding technology has been promoted. At present, plastics produced in China About half of the machinery is injection molding machines, and from the main producing countries such as the United States and Europe, the output of injection molding machines is increasing year by year, accounting for the largest proportion in plastic machinery. At present, 80% of the engineering plastics industry uses injection molding. In recent years, due to the increasing demand for injection products in the automotive, construction, household appliances, food, medicine and other industries, the development and improvement of injection molding technology has been promoted. my country's plastic machinery sales in 2000 were about 7 billion yuan, about 85,000 in number, of which about 40% were injection molding machines. From the perspective of major producing countries such as the United States, Japan, Germany, Italy, and Canada, the output of injection molding machines is increasing year by year, accounting for the largest proportion of plastic machinery. Since the advent of injection machines, small and medium-sized injection machines with clamping force of 1000-5000kN and injection volume of 50-2000g accounted for the vast majority. In the late 1970s, due to the development of engineering plastics, especially in automobiles, ships, aerospace, machinery and large household appliances, the large-scale injection machine has been rapidly developed. The United States is the most obvious. In 1980, about 140 large-scale injection molding machines with a clamping force of more than 10,000 kN were put into the towel yard, and by 1985, it had increased to more than 500. Japan's famous machine company has successfully manufactured the world's largest injection molding machine with a clamping force of 120,000kN and an injection volume of 92,000g. Another important aspect of the development of injection molding machines at present is various special injection molding machines, such as exhaust injection molding machines, foam injection molding machines, multi-color injection molding machines and so on. The preform machine and packaging machine represented by the Canadian company HUSKY embodies the characteristics of high-tech technology. The low-pressure injection molding technology introduced by the company can still ensure high-quality product molding when the clamping force is only one-third of the traditional technology, which greatly reduces the size and weight of the machine, and saves energy and controls product costs. has great significance. Our Haitian company has also actively developed HTC system injection molding machine for thermosetting materials, HTP packaging injection molding machine and exported to the North American market, HTE preform injection molding machine, HTS two-color molding injection molding machine, we will further develop these developments .