Recarburizer for foundry has good effect but should be used correctly

In casting, a certain amount of carbon is often lost due to the high furnace temperature. At this time, professional smelting materials are needed to supplement carbon. The recarburizer for casting is a special carbon supplement material specially developed for the foundry industry. It has better fixed carbon content than traditional recarburizers, and its internal sulfur, nitrogen and other elements that are harmful to casting are lower, and the recarburization effect is better, and the absorption rate is higher when used, but if the recarburizer for casting is not used correctly It is impossible to guarantee the use effect of the recarburizer for foundry, so we should also be familiar with its use effect!

The particle size of the recarburizer for foundry is generally 0~10mm. If you have special requirements, you can inform the manufacturer to customize it. The general dosage is the amount of molten iron × the required amount of recarburization/recovery rate of 75%. The carbon content should be adjusted when batching, according to the carbon content It is required to add the casting recarburizer to the lower part of the electric furnace along with the metal charge in the molten iron, and the carbon absorption rate can reach 85%-90%. Do not slag when the casting recarburizer is melted, otherwise it will be easily wrapped in Inside the waste residue, it affects the absorption of carbon.

After the molten iron is melted during casting, the carbon content can be adjusted. The recarburizer for casting can be added to the surface of the molten iron. The vortex stirring or manual stirring of the molten iron during electric furnace melting can dissolve and absorb the carbon, which can absorb the recarburizer for casting. The rate is around 85%.

Through the above explanation of the correct use method of recarburizer for casting, I believe that everyone can correct the previous wrong use method to make the effect of recarburizer for casting better. The advantage of this is that it not only guarantees the use effect of recarburizer for casting, but also At the same time, it can also save costs with less usage, which is really killing two birds with one stone!