Silicon chromium is a new type of alloy additive used in the steelmaking industry. Silicon chromium is also called SiCr. Its main components are silicon and chromium, as well as a small amount of carbon, sulfur, phosphorus and other impurities. The main forms of silicon chromium are block and granular.
Silicon chrome uses
- Steel production
In the steelmaking process, silicon chromium can be used as a deoxidizer and alloying agent. It removes oxygen from steel and improves its quality and performance.Adding silicon chromium can adjust the chemical composition of steel and increase its strength, hardness, wear resistance and corrosion resistance.
- Foundry industry
Used to produce various alloy steel castings and improve the mechanical properties of castings.
Silicon Chrome Features
- High melting point
Silicon chromium has a higher melting point, allowing it to maintain stable performance at high temperatures.
- Good antioxidant properties
Can resist oxidation in high temperature environments and extend service life.
- Chemical stability
Has certain resistance to chemicals such as acids and alkalis.
Silicon chrome production process
- One-step method (slag method or ore method): The silicon chromium provided by Zhenxin Metallurgy also uses this method. The raw materials used for smelting are silica, chromium ore, and coke. Due to the large amount of slag, this method loses a lot of chromium in the slag and consumes a lot of energy. However, using one less electric furnace reduces investment, can directly obtain low-carbon products, has a short process flow, and has a high chromium recovery rate and The total power consumption of smelting is low, but the process is difficult to master, mainly because the slag is sticky and it is difficult to discharge the slag.
- Two-step method (slag-free method): First, chrome ore, coke and part of silica are used as flux to make high-carbon ferrochromium and granulated or broken into granules; then the high-carbon ferrochromium particles are mixed with silica and coke in another Silicon chromium alloy is made in an electric furnace. The product contains high carbon content and requires carbon reduction treatment outside the furnace.
- In addition, there are other out-of-furnace carbon reduction treatments such as shaking ladle decarburization and slag washing decarburization to obtain silicon-chromium alloys that meet carbon content requirements.