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Discussion on selection of raw materials for processing graphite products by petroleum coke carburizing agent manufacturers

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Discussion on selection of raw materials for processing graphite products by petroleum coke carburizing agent manufacturers

Date:2018-04-10 Author: Click:

Manufacturers of petroleum coke carburizing agents -- selection of raw materials for processing graphite products


Graphite products are widely used in metallurgical, mechanical, electrical, chemical, textile, national defense and other industrial sectors because of its many excellent properties. How to choose raw materials for processing graphite products?


High-purity carbon materials, such as nuclear graphite, heating of vacuum high-temperature electric furnace, heat-resistant raw materials, high-purity gold mold, fire-reinforcing beak, etc., which require high chemical purity, must have high thermal stability and mechanical strength besides the requirement of purity, so the original science must also have mechanical properties. High strength and easy graphitization. Less ash raw materials include petroleum coke, pitch coke and carbon black. There are many kinds of raw materials for carburizer, and the production process is also different, including woody carbon, coal carbon, coke, graphite and so on. High quality carburizer generally refers to the graphitized carburizer, under high temperature conditions, the arrangement of carbon atoms is graphite micro-morphology, so it is called graphitization. Graphitization can reduce the content of impurities in carburizing agent, increase the carbon content of carburizing agent, and reduce the sulfur content.


When carburizing agent is used in casting, it can greatly increase the amount of scrap steel, reduce the dosage of pig iron or do not use pig iron. At present, most of the Carburants are suitable for electric furnace smelting, and a small number of Carburants with very fast absorption speed are used for cupola. The feeding mode of electric furnace smelting should be that the carburizer should be put in with the scrap and other burden, and small doses of carburizer can be added to the surface of molten iron. However, large quantities of molten iron should be avoided to prevent excessive oxidation and carburization effect is not obvious and the carbon content of the casting is not enough. The amount of carburizing agent is determined according to the ratio of other raw materials and carbon content. Different types of cast iron are selected, and different types of carburizing agents are selected according to needs. Characteristic of carburizer itself choose pure carbon-containing graphitized material, reduce excessive impurities in pig iron, proper choice of carburizer can reduce the cost of casting production. There are many grinding materials in the market, of which silicon carbide is one. Friends who have used silicon carbide will know something about silicon carbide grinding.

Carbon additive for petroleum coke

Today we will talk about the grinding effect of silicon carbide in detail.


Silicon carbide is mainly used for grinding non-metallic, non-ferrous metals, cast iron and cemented carbide, high-carbon steel, high-speed steel parts and tools for finishing and grinding, the choice of silicon carbide material is also more appropriate. With the improvement of technology, many manufacturers began to choose silicon carbide materials.


Application of black silicon carbide: cutting, grinding brittle non-metallic materials, such as glass, ceramics, stone, refractories, grinding cast iron and some non-ferrous metal parts, can choose black silicon carbide abrasive. Because silicon carbide has high chemical stability and heat resistance due to shareholders, silicon carbide can be used in more fields. Black silicon carbide is tougher and cheaper than green silicon carbide. So we should pay attention to their role and characteristics when choosing.


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