What ultra-high power coal recarburizer and what are its performance indicators?
The development of electric furnace steelmaking technology (large-scale electric furnaces, increase of electric power per furnace capacity, and use of DC electric arc furnaces) continue to put forward new requirements for the variety and performance of coal recarburizers. High-power and ultra-high-power electric furnaces are used to make steel. It can shorten the melting time of the charge, improve the production efficiency, reduce the power consumption and reduce the consumption of the coal recarburizer.
The ultra-high-power coal recarburizer is produced using high-grade needle coke, and its graphitization heat treatment is carried out in an in-line graphitization furnace. The graphitization temperature is as high as 2800 ~ 3000 ℃, so the resistivity is lower and allows more current to pass. Density, linear expansion coefficient is smaller, with excellent thermal shock resistance. The joint quality of the ultra-high power coal recarburizer is particularly important. The resistivity and linear expansion coefficient of the joint blank must be kept at a certain difference with the electrode body. The quality of the joint is better than the quality of the electrode body. The diameter of the ultra-high power coal recarburizer currently produced in our country. my country’s coal recarburizer quality standard (YB/; 2000) defines 6 physical and chemical indicators for the quality evaluation of ultra-high power coal recarburizer (see Table 1-3), including resistivity, flexural strength, elastic modulus, bulk density and The linear expansion coefficient is used as the quality assessment index, and the ash content is used as the reference index.
[Electrode paste, many people choose CGM carbon] CGM was established in 1992 and has developed into a large-scale carbon production enterprise with an annual output of 200,000 tons of electrode paste and 250,000 tons of forged coke. In the development process of CGM Carbon, we have experienced many difficulties and detours. However, with the basic concept of honest management, CGM Carbon has grown stronger. CGM carbon products are not only sold domestically, but also exported to Indonesia, foreign countries and other countries, and are recognized and praised by the international market.
[Electrode paste, why we do it better] There are 500 electrode paste manufacturers nationwide, and there are more than 100 manufacturers with a scale of more than 10,000 tons. In so many electrode paste production plants, why is CGM carbon in the production scale? Do better in terms of word of mouth. This starts with the development history of CGM Carbon. CGM Carbon was established in 1992 and was initially a carbon enterprise with petroleum coke calcination as its main business. In 2006, the CGM carbon electrode paste production line was put into operation. The production of electrode paste requires heat to soften and shape the raw materials. The general electrode paste factory needs a gas generator in this process, and in time, it also needs more expensive natural gas after coal is changed to gas. However, because our calcined coke production line can release a lot of spare heat, and this heat is just used by the electrode paste production line. Therefore, compared to more general electrode paste manufacturers, we have already saved a lot of costs in terms of heat generation.
[Purchase of electrode paste, please be cautious when encountering these problems] The threshold for the production of electrode paste in the leather bag company is relatively high. First of all, environmental issues. Without an environmental assessment report, it is impossible to produce an electrode paste factory; secondly, it is a cost issue. , Even if a non-CNC production line, the cost of an electrode paste processing line is still tens of millions. Not to mention other raw materials and technical costs. So not everyone can afford the electrode paste business casually. Therefore, there are many trading companies on the market that sell electrode paste under the name of the factory, but they have no production capability, let alone after-sales service. The price is also often very low, and when it is sold, it is shoddy. Therefore, when purchasing electrode paste, you must check the strength of the factory and beware of being deceived. Our company has encountered many such customers.
[Physical and chemical indicators of electrode paste] Resistance: <65 Ash content: <5% volatilization: 10.0-15.0 Density: >1.3 Pressure resistance coefficient:> Ductility: 6-20 Shape: egg pill, trapezoid, cylinder. Packing: Ton bag or export packing. According to customer requirements. Note: The parameter is the limit value reached by our factory. Please call us for details.
[Electrode paste, the highest quality raw materials create the highest quality products] The success of CGM carbon electrode paste is that advanced equipment and excellent technology are indispensable factors. Of course, there are other factors that add to the improvement of CGM quality. . As we all know, electric forging coal is the aggregate of electrode paste, and the quality of electric forging coal directly affects the use effect of electrode paste. CGM carbon electrode paste uses authentic Ningxia Taixi coal, which has low volatility, low ash content, high carbon content, low resistance and high hardness. It is a natural raw material for electrode paste. The carbon content of Taixi coal is 20% higher than that of Shanxi anthracite, and the price is 30% higher. Ningxia Taixi Coal has been known as black gold since ancient times.
[Electrode paste, CGM carbon can meet huge orders] This true story happened in a large alloy group factory in Shandong. One day, a dealer came to us and said that 12,000 tons of electrode paste are needed every year. We didn’t believe it at first, but after detailed communication, we learned that he is the owner of a small electrode paste factory in Shandong because he signed a contract with a group company in Shandong for two per year. For a 10,000-ton order, his own factory has a maximum annual output of only 8,000 tons, and the remaining 12,000 tons must be cooperated with the factory. With an annual output of 200,000 tons of electrode paste, CGM Carbon still has a margin of 12,000 tons. Therefore, not all orders can be eaten by the factories on the market, but CGM carbon is different. CGM carbon electrode paste can meet the needs of the group company’s electrode paste.
[Electrode paste, CGM carbon makes the world without submerged arc furnace accidents] According to statistics, in all submerged arc furnace accidents, 20% are electrode paste problems, and 30% are caused by workers. The quality of our electrode paste can allow customers to avoid these 20% of the problems, and the after-sales service of our factory engineers can provide free training to the workers, allowing the factory to avoid the remaining 30% of the problems.