China's plastic machinery urgently needs to improve core technology

China's plastic machinery urgently needs to improve core technology At present, the gap between China's plastics machinery industry and foreign countries in high-end models is still very obvious, especially in precision machinery. Compared with industrialized countries such as Germany, Japan, and Italy, there is a big gap between them. High consumption, low control level, and unstable performance. The development of the electronic information industry places extremely high demands on the refinement of plastic parts. The control accuracy and the level of repeatability of products made by domestic presses are more than half lower than the world’s advanced level. 60% of the presses imported from China each year are Precision injection molding machine equipment. In addition, the energy consumption level of China's plastic machinery is more than double the advanced level in foreign countries; the measurement and control technology is 10 to 15 years behind the foreign countries; the service life is half lower than that in foreign countries; the average noise level is more than 10 dB higher than that of foreign countries. .

It is impracticable to rely solely on the introduction of foreign technologies to bring our country's presses standards into line with the world as quickly as possible. We must start from the independent research and development of cutting-edge technologies to change the backwardness of China's plastics machinery and enhance its competitiveness in the international market.

The development of the core technologies of domestic plastics machinery and the improvement of its technological level require the joint efforts of all parties. The industry lacks sophisticated large-scale injection molding machines, composite and large-scale hollow molding machines, and lacks the development of microelectronics technology in plastics machinery. These high-end products and control technologies all require breakthroughs in core technologies. Therefore, domestic plastics machinery enterprises can continue to learn from foreign advanced products and processes and equipment through various methods, including joint ventures and cooperation, to develop our country's presses and improve the technological level. This will not only help improve the overall level of the industry, but also help the industry to develop in the direction of social specialization and enhance international competitiveness.

Galvalume Steel Coil

Galvalume steel is also called Aluminum-Zinc Alloy Coated Steel, Zincalume steel, aluminized zinc steel (aluzinc steel), SGLC. The galvalume metal is composed of 55% aluminium, 43.4% zinc and 1.6% silicon solidified at a high temperature of 600 ° C. Its whole structure consists of aluminium-iron-silicon-zinc, forming a dense quaternary crystal of an alloy.From the point of view of the degree of coating, the Galvanized Steel Coil is mainly the zinc plated on the coating, while the coating of the galvalume Steel Coil not only has zinc, but also has an extra part of aluminum.Galvalume steel sheet (coil) has better atmospheric corrosion resistance.

Galvalume Steel Sheet has excellent characteristics: strong corrosion resistance, 3 times that of pure Galvanized Steel Sheet; the surface has beautiful spangles, which can be used as building exterior panels.

The corrosion resistance of "Galvalume Steel Coil" is mainly because of aluminum, the protective function of aluminum. When the zinc is worn away, the aluminum forms a dense layer of aluminum oxide, preventing corrosion-resistant substances from further corroding the interior.

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Shandong Guanzhou Iron and Steel Group Co., Ltd , https://www.shansteelsupply.com