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Petroleum carburizing manufacturer

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Petroleum carburizing manufacturer

Date:2017-08-25 Author: Click:

Petroleum carburizer V in real life if the production of different castings, carburizing this step is necessary, along with the development of technology, graphitized carburizer began to get the advantage, then what is the castings in the production of when he is suitable to add? Here I want to share with you. 1. Casting steel, cast iron, non-ferrous alloy castings, wear-resistant castings (precision casting, pressure casting, lost foam casting, centrifugal casting, low pressure casting, etc.).

The same chemical composition, different smelting process, different proportioning and proportioning ratio, the metallurgical quality of molten iron is completely different. In order to obtain good carburizing effect, electric furnace adopts carburizing technology, cupola adopts high temperature melting technology. The influence of graphitized carburizing agent on smelting is mainly in three aspects.

1. the technology of molten iron carburizing can increase graphite nucleation in smelting process, especially in electric furnace melting. Adding silicon carbide to cupola smelting can also increase the long-acting Graphite Nucleus of molten iron and reduce the oxidation of molten iron.

2. carbon enrichment is the best way to prevent or reduce the tendency of contraction. Due to the expansion of graphitization during solidification, good graphitization can reduce the shrinkage tendency of molten iron.

3. In order to obtain high strength gray cast iron castings with high carbon content, the whole scrap steel and graphitizing carburizing agent were used in the smelting process to make the molten iron more pure and the casting materials produced have high properties.

The same chemical composition, different smelting process, different proportioning and proportioning ratio, the metallurgical quality of molten iron is completely different. In order to obtain good carburizing effect, electric furnace adopts carburizing technology, cupola adopts high temperature melting technology. The influence of graphitized carburizing agent on smelting is mainly in three aspects.

1. the technology of molten iron carburizing can increase graphite nucleation in smelting process, especially in electric furnace melting. Adding silicon carbide to cupola smelting can also increase the long-acting Graphite Nucleus of molten iron and reduce the oxidation of molten iron.

2. carbon enrichment is the best way to prevent or reduce the tendency of contraction. Due to the expansion of graphitization during solidification, good graphitization can reduce the shrinkage tendency of molten iron.

3. In order to obtain high strength gray cast iron castings with high carbon content, the whole scrap steel and graphitizing carburizing agent were used in the smelting process, which made the molten iron more pure and the casting materials produced had high properties. Petroleum carburizing agent

Petroleum carburizing agent

Among all series of petroleum carburizers, petroleum carburizer is one of the best carburizers in quality. Its main characteristics are: high fixed carbon content, the lowest sulfur content, when properly used, the absorption rate can reach more than 95%. In addition, metallurgical materials that best reduce production costs of manufacturers.

In recent years, the use of cylindrical carburizer is increasing, mainly used in foundry enterprises, the production of ordinary cast iron, gray iron more, these advantages are many other carburizers do not have, so it can be in many carburizers stand out.

1. The raw material used for columnar carburizer is secondary graphite product. The cost of raw material is low, which makes the cost of carburizer production.

2, the effect of columnar carburizing agent is good, and the carbon absorption rate of cast iron steelmaking can be over 90%.

3, low processing cost and no need of high temperature smelting can reduce the production cost of many carburizing agents.

4, the appearance is beautiful, in the smelting process, the dissolution rate is fast, in line with the needs of the majority of ordinary foundry manufacturers. The emergence of carbon and graphitized petroleum coke is a matter of recent years. Although it is not a new product, it belongs to one of the existing graphite materials. Because of its simple survival method and low cost of survival, its emergence has expanded new uses.

Petroleum carburant is the best carbon carburizing agent for smelting. In the steel-making industry, to produce good steel, must have good raw materials, including good carburizer, and graphitized petroleum coke is the best carburizer. In the absence of graphitized petroleum coke, graphitized petroleum coke emerged, breaking the bottleneck, because the edge material of graphite electrode was less and the price was higher, which not only increased the cost of steelmaking, but also restricted the development of steel industry. With the rapid development of China's steel industry, the output of steel has become the first in the world. In 2011, China's steel output was 683 million tons, and in 2012, 713 million tons. In the past, low-end non-graphitized carburant was generally used in domestic smelting industry. With the improvement of product quality and the need of upgrading, more and more graphitized Coke will be used in China. Conservative calculation of smelting steel according to 0.05% graphitization coke, the annual dosage is 350 thousand tons.

In recent years, the demand for energy saving and emission reduction is becoming higher and higher. Industrial furnaces and kilns are developing towards large-scale, super-large-scale and scientific and technological type. Therefore, the performance requirements of large cathode blocks, large carbon electrodes, graphitized electrodes and electrode pastes for industrial furnaces are getting higher and higher. In order to manufacture large cathode blocks, large carbon electrodes, graphitized electrodes and electrode pastes, more graphite crushes with good performance (by-products of graphite electrode processing) should be added. Graphite fossil oil coke can partly replace graphite crushing, and the market demand increases year by year. The cumulative output of graphite and carbon products in China from January to December 2012 was 28.668 million tons (of which, if graphite petroleum coke was added 10% on average to produce graphite and carbon products, it would be 2.86million tons per year). In 2012, the output of graphite electrode which can produce graphite crushing was 648,000 tons, and 45.36 million tons of graphite crushing produced 7%. Graphite is small in quantity, high in cost and high in price. Therefore, graphite fossil oil coke has good business prospects.


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