Analysis of calcium silica alloy is not a deoxidizer
Sep 27, 2021
Analysis of calcium silica alloy is not a deoxidizer
Calcium silica alloy is actually a deoxidizer, why are you not familiar with this deoxidizer, it is because there are many types of deoxidizers, and basically are compound deoxidizers so that calcium silica alloy deoxidizer is not known by many people. And deoxidizer and block and powder, please see the following detailed information.
What is a deoxidizer? Is it only used to deoxidize? What are its characteristics? Calcium silica powder manufacturers for your analysis are as follows. Deoxidizer, electric furnace steelmaking commonly used in many types of deoxidizer, can be broadly divided into two categories: one is a block deoxidizer, the other is a powder deoxidizer. Block deoxidizer is generally used for precipitation deoxidation, powder deoxidizer is generally used for diffusion deoxidation. Block deoxidizer mainly includes: ferromanganese, ferrosilicon, aluminum, silicomanganese alloy, silicomanganese aluminum alloy, silicon-calcium alloy, etc. Powder deoxidizer mainly includes carbon powder, ferrosilicon powder, aluminum powder, calcium silica powder, calcium carbide, etc.
The basic requirements for a deoxidizer are.
① iron oxide precipitation in the solidification process, reducing the toughness and plasticity of steel.
② carbon and oxygen segregation generates carbon dioxide bubbles causing defects such as internal porosity or subcutaneous bubbles in steel ingots.
③ the formation of iron oxide ions and iron sulfide ions eutectic, distributed on the grain boundaries, the formation of steel cracking defects during hot working.
Therefore, in the smelting into the reduction period until the steel casting, to take a series of deoxidation process measures to ensure adequate deoxidation.
The content of deoxidizing elements in the calcium silica alloy deoxidizer is very high, so the content of harmful impurities is very small, then the block size of the deoxidizer and particle size should be appropriate, and the use of deoxidizers need to be dried before, otherwise, the introduction of moisture will have an impact on the deoxidation work
