In the middle and late 1940s, there were only a few imported die-casting machines at present, including: British small pneumatic hot chamber machine (Shanghai), Czech Polak 600 (clamping force 76 t) vertical cold chamber die casting Machine (Kunming) and a horizontal cold chamber die casting machine (Chongqing) with a clamping force of 100 t from KUX, USA.
In the 1950s, my country designed and manufactured a fully hydraulic 50-type horizontal cold-chamber die-casting machine with clamping force of 500 kN and 1000 kN. At that time, Polak vertical cold chamber die casting machines from the Czech Republic were also imported in batches. There were 4 specifications, the maximum clamping force was 2 200 kN, the horizontal cold chamber die casting machines of the former Soviet Union, toggle clamping, Three specifications, the maximum clamping force is 5 300 kN. In the early 1960s, we started to manufacture vertical cold chamber die casting machines and horizontal cold chamber die casting machines, namely model 900 (clamping force 1 150 kN) and J 1113 (clamping force 1 250 kN). In the 1970s, in order to develop serialized products, the Jinan Institute of Casting and Forging Machinery was organized, with the participation of Shanghai Technology Research Institute and Shanghai Die Casting Machine Factory, to jointly carry out some related technical work: the series of previous die casting machines Designed and trial-produced J 1125, J 1140 and J1163 full hydraulic horizontal cold chamber die casting machines; designed and manufactured a full hydraulic horizontal cold chamber die casting machine with a clamping force of 4 000 kN (Shanghai Forging Machine Tool Works Manufacturing); to the 1980s and early 1990s, relevant units continued to complete the development of a series of horizontal cold chamber die-casting machines with a clamping force below 16,000 kN; vertical cold-chamber die-casting machines also formed a clamping force Series products below 2 500kN; In 1986, the first domestic J1163 A automatic die-casting unit was trial-produced; the first domestic flexible die-casting unit was developed in 1990, with a clamping force of 4 000 kN; in terms of die-casting machine design work, In the 1980s, the designed injection performance of the die-casting machine was close to the foreign level at that time; in the following years, the auxiliary device and the parameter detection device were aligned and finalized and the product was formed. The clamping mechanism is all hydraulically driven, and the toggle mechanical extension force structure replaces the full hydraulic pressure. At that time, the hot chamber die casting machine also formed a series of products with a clamping force of less than 1,500 kN, and the full vertical die casting machine also had a series of products with a clamping force of 3 150 kN.
In order to further promote the development of high-pressure die-casting machine production, the first die-casting machine parameter standard was formulated in 1980. In 1990, while the die-casting machine parameter standard was revised and converted, the first die-casting machine accuracy and technical condition standard was formulated. Make the design, manufacture and acceptance of die casting machine have a followable (or reference) basis.
