There are many kinds of raw materials for carburizing agent, and the production process is also different, including wood carbon, coal, carbon, coke, graphite, etc., among which there are many kinds under small categories. A better carbon agent is often called graphitization by graphitization. At high temperature, carbon atoms are arranged in the micro form of graphite, so it is called graphitization. Graphitization can reduce impurity content in carburizing agent, increase carbon content and reduce sulfur content.
The product is made of high quality taixi smokeless cleaned coal by calcining at 800-1200 ℃ calcining furnace, which is an ideal raw material for steelmaking.
Name | Carbide | |||||
category | grade | Chemical index | Fixed carbon (%) | Total sulfur (%) | ||
Ash (%) | Volatile (%) | Moisture (%) | ||||
Carbide | Premium | ≤4.5 | ≤0.9 | ≤0.3 | ≥95 | ≤0.2 |
First grade | ≤6.5 | ≤1.2 | ≤0.5 | ≥93 | ≤0.3 | |
Second grade | ≤7.0 | ≤1.2 | ≤0.6 | ≥92 | ≤0.3 | |
Third grade | ≤8.5 | ≤1.5 | ≤0.6 | ≥90 | ≤0.3 | |
granularity | 1-4mm, 1-5mm, 0-1mm, 0-4mm or processed into different granularity according to customer requirements. |
Ningxia mingmaiteke industry and Trade Co., Ltd. was established in 2001, is a private joint-stock enterprise. The company is a member of China's five major import and export chambers of Commerce and one of the 15 key export enterprises in Ningxia Hui Autonomous Region. Since 2002, it has been rated as "three a" enterprises of banks, A-class enterprises of Yinchuan customs and enterprises of "valuing contracts and keeping promises" of the administration of industry and Commerce of the autonomous region, and has been awarded the advanced enterprise of export earning foreign exchange by Ningxia Hui Autonomous Region government.
The company is mainly engaged in the import and export business of various kinds of hardware, mineral, chemical products and some local characteristic native animal products and food. The products are mainly sold to Japan, South Korea, India, EU, USA, Australia, Middle East and other countries and regions, and have a stable domestic and export source base. In particular, silicon products, manganese products, carburizers, calcium carbide, etc. have been the backbone of the company for many years to earn foreign exchange and profit, and the export volume has been increasing year by year.
The company has strong economic power, flexible operation mechanism and perfect management system. It not only has a group of sales backbones who are proficient in business and rich in experience, but also has long-term stable sales channels and customer relations. All kinds of commodities have a certain market share in the international market and have formed a certain influence in the same industry.