Silicon carbon alloy is suitable for deoxidation of various ordinary steels and castings. It has fast deoxidation, rapid slagging and strong recovery atmosphere. Silicon carbon alloy can effectively improve the element recovery rate and greatly reduce smelting costs. High carbon silicon can stabilize the quality of molten iron, refine the grains. At the same time, remove harmful impurities in the molten iron, and increase the casting temperature of the molten iron. The steel billet produced by using HC silicon instead of Ferrosilicon for deoxidation is of good quality and low cost.
Silicon and carbon are the main element components of silicon carbon alloy. Silicon enters the molten iron during the melting process, and most of the carbon burns and generates heat. It is worth noting that due to silicon carbide, the main element of the composite additive is high silicon carbide scrap (sic) particles, which play a core foundation role in castings. The finer the silicon carbide particles, the stronger the nucleation ability. It was observed that there were high-density dislocations around the silicon carbide particles, and the number of eutectic clusters and pearlite changed significantly.
Advantages of Si-C Alloy
At high temperatures, the silicon carbide in the si-carbon alloy decomposes, and the ionic carbon easily reacts with oxygen. They first reduce the oxidation of the molten iron, and then become the crystallization core of graphite. Therefore, the graphite structure of gray iron castings smelted with silicon carbon alloys becomes very good. Because HC Silicon has strong nucleation ability, it can change the shape of graphite and refine the structure, thereby improving mechanical properties and preventing leakage, reducing the scrap rate.
High Carbon Silicon Supplier
Common silicon carbon alloy models include 68/18, 65/18 and 60/15. After processing by silicon carbon manufacturer, it can provide three sizes: lumps, powders, and briquette. Among them, the higher the silicon content, the higher the price. As a professional high carbon silicon manufacturer and supplier, Highrise Metal Material provide various grades and sizes for customers. The quality have always been good as well as stable capacity.
Model No. | Chemical Composition (%) | |||||||
Si | C | Al | S | P | ||||
≥ | ≤ | |||||||
Si68C18 | 68 | 18 | 1.0 | 0.05 | 0.05 | |||
Si65C15 | 65 | 15 | 1.5 | 0.05 | 0.05 | |||
Si60C20 | 60 | 15 | 2.0 | 0.05 | 0.05 |
All in all, silicon carbon alloy can replace ferro silicon, silicon carbide, carburizer, reduce the amount of deoxidizer, and be used for converter training deoxidation alloying technology. The effect is stable, and the chemical composition, mechanical properties and internal control quality of the steel are superior to traditional technologies.