Plastic mold industry development four major constraints

Plastic mold development faces opportunities and challenges

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. According to Luo Baihui, head of the International Mould and Metals and Plastics Industry Suppliers Association, China’s booming demand for molds includes industries such as aerospace, defense, rail locomotives and construction machinery, especially the Beijing-Shanghai high-speed rail project with a total investment of RMB 220 billion. Large-scale aircraft projects with a scale of more than 30 billion yuan will bring new challenges and opportunities to the plastic mold industry. Luo Baihui said that the development of China's plastic mold industry must rely on national key construction projects, and vigorously develop precision injection molds, cover molds and large 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's plastic mold industry continues to develop healthily.

Four factors <br> <br> mold industry in recent years, the rapid development of China's plastic mold industry, reflected in the technological content of products continue to improve, continue to shorten the manufacturing cycle. However, compared with the advanced level of foreign plastic molds, there is still a small gap.

1, subject to mold steel product upgrades International Die and Hardware & Plastics Industry Suppliers Association Executive Secretary Luo Baihui said recently that with the global economy rebounded, the rapid development of the mold industry, the mold industry can achieve higher growth this year, the mold industry in 2011 Will be in a stable development, is expected to have more than 18% growth, so the mold industry's total demand for steel will continue to rise.

Luo Baihui pointed out that the mold industry is a stable user in the iron and steel industry, and it is a major promoter of upgrading steel products. The upgrade of the mold industry is to a certain extent subject to the varieties, quality, and services of high-grade steel products.

More than 80% of the production of foreign mold steel is produced by vacuum refining and electroslag remelting. The purity and isotropy of steel are high, and the share of mold steel produced by domestic electroslag remelting is very small, about 1/10. The rate of finished products of die steel in developed countries is 85% to 90%, while the domestic finished product rate is only 70%. China's inclusion of national standards in the plastic mold steel is only 3Cr2Mo and 3Cr2MnNi. Plastic mold steel commonly used in foreign countries has formed a more complete series, such as the United States plastic mold steel has 7 steel, forming a complete P series; Japan Hitachi Metal Company has 15 steel. 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 used in the annealed, normalized or tempered state processing, so life is only 1/10 to 1/2 of similar foreign molds. Most of the domestic automotive plastic mold companies are willing to use three series of mold steels from Germany, Japan and Sweden. However, the price of European mold steel products is usually higher by 30% to 40%, which seriously affects the competitiveness of domestic molds.

The first is to speed up the development of high-quality special steels for high-end molds. Such as supercritical and ultra-supercritical thermal power equipment required for high-temperature high-pressure steel, high-strength steel materials required for large-scale mold machine tool equipment, high-grade bearing equipment required for high-quality bearing steel, high-grade stamping mold required for high-quality mold steel.

The second is to improve the quality of steel products. In recent years, the steel industry has stepped up the pace of independent innovation and developed some new products, such as high-quality silicon steel sheets that are urgently needed for motors and blades. However, it must be ensured that its performance consistency and quality stability, otherwise the relevant companies dare not use.

The third is to jointly build a win-win customer relationship. Mould enterprises and iron and steel enterprises are upstream and downstream, and they share common experience and feelings in independent innovation. It is hoped that the two sides will be able to change their thinking, position themselves for the sake of the other side, and have a long-term perspective. They will support each other and make joint efforts for autonomy of high-end equipment in China as soon as possible, and for autonomy of high-end steel products in China as soon as possible.

2. Constrained by the standardization degree of the mold The automobile mold has entered the specialization and standardization stage. The automotive mold is basically provided by a professional mold manufacturer. The commercialization rate of the mold is above 70%. There are also many companies specializing in the production of mold standard parts. There are as many as hundreds of standard automotive mold parts, such as the standardization rate of molds in Germany and Japan. Up to 85%. The standardization degree of large molds in the domestic mold enterprises is about 25% to 30%. The degree of standardization of molds has become one of the bottlenecks restricting the manufacturing cycle of domestic molds, and has also affected the competitiveness of domestic molds.

3, subject to mold accuracy, longevity and manufacturing cycle Japan's auto mold precision up to 0.02mm, plastic mold mold surface accuracy is controlled at 0.01mm, while the domestic automotive mold brand enterprises, auto mold precision control in 0.03 ~ 0.05mm Plastic mold parting mold surface accuracy is about 0.03mm. Germany's mold manufacturing cycle is from 2 weeks to 20 days. It is stocked for 4 to 5 days and the mold is tested for 2 to 3 days. Japan, South Korea's mold cycle requires two weeks, because they have a special mold fittings city, sliders, mandrels, sprue sets of components can be purchased, domestic parts can not be standardized, some parts of the processing accuracy Not required.

4. Subject to the level of enterprise management innovation The overall quality of the company's employees is that the majority of the employees of the die companies in Germany and Japan are university graduates or have been specially trained, and have at least 10 years of work experience. The proportion of die-casting company technical personnel is high, most companies Above 25%, some are above 50%, many employees of the company can often be interchanged in technology and production positions. The employees of the domestic mold companies lacked training in high-tech processing technology and training in the operation skills of high-end CNC machine tools, which to a certain extent also affected the utilization of high-end equipment. The proportion of technical personnel in mold enterprises is low, with most companies between 15% and 20%, and their comprehensive development capabilities are low. In addition, German and Japanese companies attach great importance to the development of new products. The mold factory often develops together with material manufacturers and product manufacturers. The injection molding machine factory and material manufacturers jointly develop new models; the brand-name plastic supplier association is jointly developed with the famous brand automobile company. Plastic new steel products. This strong cooperation enables companies to have strong R&D capabilities. Chinese enterprises have a greater gap in their innovation and R&D capabilities.