Affected by the financial crisis, China's southeast coastal enterprises, especially export-oriented enterprises, have been greatly affected. The mold manufacturing enterprises in various regions have not been affected by the financial crisis.
The development of the country's foundry mold industry has experienced a difficult journey until 1976. Since 1977, due to the vigorous development of China's machinery, electronics, light industry, instrumentation, transportation and other industrial sectors, the demand for casting molds is increasing, the quality requirements are getting higher and higher, and the delivery period is getting shorter and shorter. Therefore, it has caused the relevant departments of our country to attach great importance to the foundry mold industry, and listed the mold as a key scientific research project for the “Sixth Five-Year Plan†and “Seventh Five-Year Planâ€, sending people to study and inspect abroad, introducing foreign advanced technology of casting molds, and formulating relevant casting mold countries. standard. Through this series of measures, the casting mold industry has been greatly developed, and some technical breakthroughs have been made. The second automobile manufacturing plant has used the new technology and new materials to manufacture high-quality large-scale casting molds for the Isuzu Plant in Japan, which has won a good international reputation.
In 1980, Shanghai was able to manufacture a 400-cavity large-scale thermosetting plastic packaging mold. This casting mold requires small shape error and surface roughness less than 0.1um. Subsequently, large-scale complex plastic molding and casting molds for household appliances have been successfully trial-produced; the average sharpening life of 4 million punches and burrs of 0.5um or less of cemented carbide progressive die have also been overcome. This 6-station rotor sheet production casting mold It is close to the international advanced level. At the same time, it has also produced more than 10 precision precision progressive die, as well as plastic molding die with high precision and difficulty. Through digesting and introducing technology, it has developed micro-precision multi-station progressive die multi-cavity plastic molding die. In addition, computer-aided design (CAD) computer-aided manufacturing (CAM) technology for foundry molds has also begun research and achieved initial results. During this period, the foundry mold industry really got a big development. The number of foundry mold production plants in the country has reached more than 6,000, the number of employees is about 300,000, the production of casting molds is about 800,000 sets, and the standard mold bases are more than 160,000 sets. China's foundry mold industry has begun to take shape.
In recent years, the introduction of advanced manufacturing technology and advanced equipment, parts mapping, generally no longer use the rubbing method, model method, and the use of three-coordinate measuring instrument laser scanner and other advanced measuring equipment measurement technology, surveying and mapping parts are not only accurate, rapid, Moreover, the measured data pattern can be directly input into the computer, various files can be created, and the two-dimensional model of the three-dimensional model of the part can be displayed. In terms of design, due to the widespread application of CAD, many enterprise factories have already smashed the drawing board or are smashing the drawing board. The three-dimensional modeling software is vigorously promoted, which not only provides guarantee for CNC programming integration, but also can perform assembly interference check during design to ensure The design process is reasonable. In terms of processing, the extensive use of CNC machine tools not only guarantees the processing precision of casting mold parts, but also the processing technology with high cutting speed, high feed speed and high processing quality, which is several times or even ten times higher than the traditional cutting processing efficiency. Some large-scale and upper-level casting mold factories have emerged constantly, and some unskilled, non-standard, and simple equipment workshops have been gradually eliminated, which has made China's foundry mold industry have developed rapidly.
Under such circumstances, we should highlight the production precision of casting molds, promote China's foundry mold industry to enter a new stage of development, and give full play to the important role of the foundry mold industry national economy. Advancing with the times has enabled China's national economy to achieve rapid development, accelerate the realization of four modernizations, and become an economic power and a technological power.
The development of the country's foundry mold industry has experienced a difficult journey until 1976. Since 1977, due to the vigorous development of China's machinery, electronics, light industry, instrumentation, transportation and other industrial sectors, the demand for casting molds is increasing, the quality requirements are getting higher and higher, and the delivery period is getting shorter and shorter. Therefore, it has caused the relevant departments of our country to attach great importance to the foundry mold industry, and listed the mold as a key scientific research project for the “Sixth Five-Year Plan†and “Seventh Five-Year Planâ€, sending people to study and inspect abroad, introducing foreign advanced technology of casting molds, and formulating relevant casting mold countries. standard. Through this series of measures, the casting mold industry has been greatly developed, and some technical breakthroughs have been made. The second automobile manufacturing plant has used the new technology and new materials to manufacture high-quality large-scale casting molds for the Isuzu Plant in Japan, which has won a good international reputation.
In 1980, Shanghai was able to manufacture a 400-cavity large-scale thermosetting plastic packaging mold. This casting mold requires small shape error and surface roughness less than 0.1um. Subsequently, large-scale complex plastic molding and casting molds for household appliances have been successfully trial-produced; the average sharpening life of 4 million punches and burrs of 0.5um or less of cemented carbide progressive die have also been overcome. This 6-station rotor sheet production casting mold It is close to the international advanced level. At the same time, it has also produced more than 10 precision precision progressive die, as well as plastic molding die with high precision and difficulty. Through digesting and introducing technology, it has developed micro-precision multi-station progressive die multi-cavity plastic molding die. In addition, computer-aided design (CAD) computer-aided manufacturing (CAM) technology for foundry molds has also begun research and achieved initial results. During this period, the foundry mold industry really got a big development. The number of foundry mold production plants in the country has reached more than 6,000, the number of employees is about 300,000, the production of casting molds is about 800,000 sets, and the standard mold bases are more than 160,000 sets. China's foundry mold industry has begun to take shape.
In recent years, the introduction of advanced manufacturing technology and advanced equipment, parts mapping, generally no longer use the rubbing method, model method, and the use of three-coordinate measuring instrument laser scanner and other advanced measuring equipment measurement technology, surveying and mapping parts are not only accurate, rapid, Moreover, the measured data pattern can be directly input into the computer, various files can be created, and the two-dimensional model of the three-dimensional model of the part can be displayed. In terms of design, due to the widespread application of CAD, many enterprise factories have already smashed the drawing board or are smashing the drawing board. The three-dimensional modeling software is vigorously promoted, which not only provides guarantee for CNC programming integration, but also can perform assembly interference check during design to ensure The design process is reasonable. In terms of processing, the extensive use of CNC machine tools not only guarantees the processing precision of casting mold parts, but also the processing technology with high cutting speed, high feed speed and high processing quality, which is several times or even ten times higher than the traditional cutting processing efficiency. Some large-scale and upper-level casting mold factories have emerged constantly, and some unskilled, non-standard, and simple equipment workshops have been gradually eliminated, which has made China's foundry mold industry have developed rapidly.
Under such circumstances, we should highlight the production precision of casting molds, promote China's foundry mold industry to enter a new stage of development, and give full play to the important role of the foundry mold industry national economy. Advancing with the times has enabled China's national economy to achieve rapid development, accelerate the realization of four modernizations, and become an economic power and a technological power.
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