Plastic mold industry to do a "tall fine" article

At present, China’s plastic consumption ranks first in the world, but its per capita consumption is only 1/7 of that of industrialized countries, and it is 1/4 of that of industrial middle-class countries. This reflects the gap between us and the other side. Shows China's plastic industry and plastic mold industry a huge space for development.

At present, China’s booming demand for molds includes industries such as aerospace, defense, rail locomotives, and construction machinery, especially Beijing-Shanghai high-speed rail projects with a total investment of 220 billion yuan, and large-scale aircraft projects with a scale of investment of over 30 billion yuan. All bring new challenges and opportunities to the plastic mold industry. Therefore, the development of China's plastic mold industry must rely on national key construction projects, and vigorously develop precision injection molds, cover parts molds and large-scale injection molds; at the same time, through accelerating the merger and reorganization of enterprises and product replacement, reduce the distance with the developed countries, so that China The plastic mold industry continues to develop healthily.

Disparity can not be underestimated In recent years, China's plastic mold industry has developed rapidly, reflected in the continuous improvement of product technology content, and the manufacturing cycle is continuously shortened. However, compared with the advanced level of foreign plastic molds, there is still a small gap.

Take mold materials and standard parts as an example. More than 80% of foreign die steel production is produced by vacuum refining and electroslag remelting. The purity and isotropy of steel products are high, and the share of domestic die steel produced by electroslag remelting is very small, about 1/10. In developed countries, the yield of tool steel is between 85% and 90%, while the domestic product rate is only 70%. China's inclusion of national standards in the plastic mold steel is only 3Cr2Mo and 3Cr2MnNié„„Mo. Foreign commonly used plastic mold steel has formed a more complete series, such as the United States plastic mold steel has 7 steel, forming a complete P series; Japan Hitachi The metal company has 15 steel grades. The arbitrariness of steel used in China's plastic molds is large, 80% use carbon steel and 40Cr steel. For complex, precision molds, in order to avoid heat treatment deformation, generally in the annealed, normalized or tempered state processing and use, so the life is only 1/10 to 1/2 of the same foreign mold. Most domestic auto plastic mold companies are willing to use Germany, Japan, Sweden, the three major series of mold steel, but in the domestic purchase of European mold steel, the price is often higher than 30% to 40%, seriously affecting the competitiveness of the domestic mold.

Internationally, automotive molds have entered the stage of specialization and standardization. Auto molds are basically provided by professional mold manufacturers, and the commercialization rate of molds is above 70%. There are also many companies that specialize in the production of mold standard parts. Hundreds of species, such as Germany, Japan, the standardization rate of up to 85%. The standardization degree of large molds in the domestic mold enterprises is about 25% to 30%. The degree of standardization of the mold has become one of the bottlenecks restricting the manufacturing cycle of domestic molds, and it also affects the competitiveness of domestic molds.