Due to the late start of mold standardization in China, at present, China's mold fasteners have long been a variety of small specifications, small scale of production, circulation is not smooth, more mid- to low-grade products, less high-end products. Some high-grade mold fasteners produced by foreign-funded enterprises have been affected by their popularization due to their high price. For China's die fastener companies, there is too little concentration, too many factories too scattered, product quality can not keep up; for the die fastener market, disorderly competition is the market is more confusing.
From China's "fifteen" mold industry development plan proposed: mold fasteners to expand the variety, improve accuracy and achieve interchangeability. Until now, during the "Twelfth Five-Year Plan" period, the development of mold fasteners in China has not kept pace with the level of developed countries. Many mold fasteners have been used abroad for many years, but China's fastener companies have not yet produced. At present, middle and high-grade fasteners are basically imported from abroad. Self-produced and self-produced products are of lower performance and poorer stability, and are used for molds that require less.
In recent years, with the rapid development of China's mold industry, the standardization, specialization, and commercialization of mold parts have reached a high level and have made great progress. Luo Baihui, secretary-general of the International Association for Modeling, pointed out that those products with high technical content, advanced structure, excellent performance, high quality, and convenient replacement are still lacking in individualized products. Therefore, a considerable amount of mold fasteners are still imported from abroad every year. Domestic mold fasteners should still be developed and breakthrough in terms of technical standards, scientific and technological development, and product quality.
Luo Baihui, secretary-general of the International Modeling Association, stated that China’s mold fasteners will definitely develop toward the high end. Mold fasteners will be used in the future in automobiles, motorcycles, household appliances, electronic communications, construction equipment, instrumentation, plastics and rubber, etc. field. From the perspective of long-term development, with the application of mold fasteners in various fields, mold fasteners will become a very active and rapidly developing product in the future market economy. China's mold fasteners will surely accompany it. With the advent of the technological era, profound changes have taken place. The supply and use of high-end mold fasteners will be an inevitable trend in the future. The prospects for the development of high-end mold fasteners will be very optimistic and beautiful.
Weathering steel, i.e. atmospheric corrosion-resistant steel(Corten Steel), is a series of low-alloy steel between ordinary steel and stainless steel. Weathering steel is made of ordinary carbon steel with a small amount of corrosion-resistant elements such as copper and nickel. It has the characteristics of toughness, plasticity, forming, welding and cutting, abrasion, high temperature and fatigue resistance of high-quality steel. The weathering resistance is 2-8 times of ordinary carbon steel and the coating performance is 1.5-10 times of ordinary carbon steel. At the same time, it has the characteristics of rust resistance, corrosion resistance, life extension, thinning and consumption reduction, labor saving and energy saving. Weathering steel is mainly used in railway, vehicle, bridge, tower, photovoltaic, high-speed engineering and other steel structures exposed to the atmosphere for a long time. It is used to manufacture containers, railway vehicles, oil derricks, seaport buildings, oil production platforms and containers containing hydrogen sulfide corrosive medium in chemical and petroleum equipme.
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