General situation of production of heat-resistant steel electric heating alloy in China
In the early 1950s, China began to produce nickel-chromium ferroelectric heating alloy products. At that time, the induction furnace smelting process was used. In the 1960s, with the development of industrial production, the demand for electric heating alloys continued to grow. Due to the lack of nickel chromium resources, the development of iron-chromium-aluminum-based electric heating alloys began. Production technology. After nearly 40 years of continuous development improvement, the electrothermal alloy system with Chinese characteristics has been established. Now can produce all kinds of nickel-chromium, nickel-chromium iron, iron-chromium aluminum electric heating alloy wire, strip flat wire. The high service temperature of the alloy reaches 1400 ° C. China is currently one of the countries with a complete range of electrothermal alloys in the world.
1. Output of electric heating alloy
China produced about 7000t of electric heating alloy in 1966, the output in 2006 can reach 10,000t. Among them, nickel chromium nickel chromium iron alloy account for about 8%, iron chromium aluminum alloy accounts for more than 90%. China's electric heating alloy is based on iron-chromium-aluminum alloy, which is the characteristic of China. The electric heating alloys in Sweden, the United States, Japan, Russia other countries are dominated by nickel chromium nickel chromium iron alloys, their proportions are between 50% 70%. At present, China's electrothermal alloy output is second only to Sweden, ranking second in the world.
2. Product structure of electric heating alloy
China's electric heating alloys need to be continuously adjusted in product structure. At present, wire rod accounts for 60% ~ 65%. The proportion of strip is low, strip is widely used in large industrial furnaces. Because the investment in strip production is greater than wire rod, the technical difficulty is great. So far the variety specifications are complete, the product quality needs to be improved.
Address: Kangmin Road, Economic Development Zone, Xinghua, Jiangsu, China
Mobile:0086 186 0523 8772