How to use silicon slag in steelmaking?

Directly join the bottom of the molten iron bag with ferrosilicon and silicomanganese alloys;Half, together with ferrosilicon and silicomeng, is added to the bottom of the molten iron bag, and the other half is added to one third of the molten steel bag;When the molten steel is injected into one third of the molten iron ladle, it is added in one time.Tons of steel added 3-5 kg.

Silicon slag can be improve furnace temperature,dilute the molteniron，increase thefluidity of the molten iron，promote slag discharge and increase the label.It is widely used in smelting ,casting pig iron and silicon manganese alloy.

Silicon slag is much cheaper product which replace ferrosilicon in steelmaking,so that it can be save cost for customer.

一、What is silicon slag？   
(1)Silicon slag generally refers to the remaining part of the raw ore after extraction, which also contains a certain amount of silicon element. It can significantly improve the strength, hardness, and elasticity of steel, increase its magnetic permeability, reduce the hysteresis loss of transformer steel, and have a high deoxidation rate

(2)Silicon slag, as one of the metallurgical materials purchased in large quantities by production enterprises, has irreplaceable advantages. Due to the different uses of silicon, there are various types of silicon slag, which can be roughly divided into industrial silicon slag, solar silicon slag, semiconductor silicon slag, etc. Silicon slag itself has high utilization value and can be recycled or used as a deoxidizer

二、What are the uses of silicon slag？
(1)Silicon slag alloy can be used for purification and other processes:Silicon slag alloy can participate in the purification process of other ferroalloy products, which can improve the purity of silicon elements in ferroalloy products, making the products better in quality and effect!

(2)Silicon slag alloy has the function of increasing furnace temperature:Adding silicon slag alloy during steelmaking has the effect of increasing furnace temperature, providing a stable high-temperature environment for smelting materials and achieving better smelting results!

(3)The role of silicon slag alloy in other aspects:Silicon slag alloy also has the function of improving steel grades and enhancing manufacturer efficiency. The use of silicon slag alloy in casting can also improve the gradual toughness and cutting ability!

(4)Silicon slag alloy has the effect of improving the fluidity of steel water flow:During steelmaking, oxides will be generated due to the reaction between molten steel and oxygen. If not eliminated in a timely manner, it will block the opening. Silicon slag alloy can aggregate and filter the oxides, making it easier!

(5)Silicon slag alloy can be used for steel slag recycling process:Silicon slag alloy can also be applied in the steel slag recycling process, allowing the steel slag generated during steelmaking to be re refined to produce raw iron or steel, greatly improving the yield of steelmaking and reducing waste!

(6)Silicon slag alloy can be used for furnace recrystallization:Silicon slag alloy can be remelted to allow it to crystallize again, in response to the current shortage of silicon materials and rising prices, which has improved the efficiency of ferroalloy manufacturers!

(7)Silicon slag can also be used for steel slag recycling of pig iron, ordinary casting, etc. Silicon slag can effectively increase furnace temperature, increase the fluidity of molten iron, achieve high-quality slag removal, increase labeling, and update the toughness and cutting ability of iterative castings. Stainless steel manufacturers use silicon slag as a reducing agent in the process of electric furnace refining stainless steel to upgrade efficiency and output.

三、How to distinguish the quality of silicon slag?
(1)Quickly select high-quality silicon slag through the color of silicon slag. Silicon slag is mainly a carbonized iron alloy product, with more internal elements of silicon slag (Sic). Generally, products with higher silicon slag content will have a greener color, while products with lower silicon slag content will have a gray color. Silicon slag with a silicon slag content of 50%~90% will have a black color. This way, when selecting silicon slag, we can look at the color of the silicon slag product, Quickly select high-quality silicon slag through its color.

(2)Quickly select high-quality silicon slag through silicon slag qualification. In order to gain the trust of customers, silicon slag manufacturers usually conduct quality certification for their silicon slag products. When purchasing silicon slag, they can check the manufacturer's silicon slag qualification.