It is used in many industries. Adding petroleum coke recarburizer to steel can effectively improve the hardness and wear resistance of steel. However, if improper use leads to excessive carbon content in steel, it will also affect the quality of steel. The use of recarburizers in castings can greatly increase the amount of scrap, reduce the amount of pig iron or not use pig iron. In the electric furnace smelting feeding mode, the recarburizer should be put into the furnace together with the scrap steel and other ingredients. The addition of small doses can be added on the surface of the molten iron. However, a large amount of molten iron should be avoided to avoid excessive oxidation, resulting in insignificant recarburization effects and insufficient carbon content in castings. Medium temperature asphalt

Petroleum coke recarburizer

Under normal circumstances, do not add carbon agent, add in batches. After melting, add a part, put a part of the molten iron (about one bag) into the bag, and then return to the furnace to add the carbon agent 1-2 times, then slag and add the alloy. The adding method is wrong, and the layer-adding carbon agent is used. Avoid adding too much slag to the molten iron mirror, and try not to use too much rust material. The foundry made a mistake in choosing the recarburizer. For example, there is confusion between the fixed carbon content and the carbon content of the carbonizer. The fixed carbon value is calculated based on the moisture, volatile content, ash and sulfur content of the sample, and the carbon content can be obtained by a direct carbon meter. Some recarburizers have high ash content and large carbon content, but their fixed carbon content is not ideal. There are also some foundry workers who judge whether the fixed recarburizer is qualified unilaterally from the carbon content of the fixed recarburizer and its material properties. The result may be biased, making the choice of recarburizer unworthy.

Graphite powder should be infrequent for everyone. Graphite powder has a wide range of uses, such as lubrication, electrical conductivity, etc., so can graphite powder be used to prevent rust? The following graphite powder manufacturers will give you a detailed introduction. Apply graphite powder to a solid and put it in water. We will find that the solid coated with graphite powder will not get wet by water, even if it is soaked in water. Graphite powder in the water is like a protective film that separates the solid from the water. This is enough to show that graphite powder is not soluble in water. Using this characteristic of graphite, it can be used as a good anti-rust paint. Coated on metal chimneys, roofs, bridges, pipes, can effectively protect the metal surface from the corrosion of the atmosphere, sea water, etc., good corrosion and rust prevention. We often encounter this situation: the connecting bolts of the cleaning equipment or steam pipe flanges are very easy to rust, which brings great trouble to maintenance and disassembly, which not only increases the maintenance workload, but also directly affects the production schedule. We can make graphite powder into a paste.