how to judge the quality of ferrosilicon 75

Ferrosilicon 75 is a traditional steel-making material, so the most frequent purchase in the ferroalloy market is ferrosilicon 75. But on the market all kinds of ferrosilicon 75 dazzling how to judge the quality of ferrosilicon 75 quality has become the most headache of many manufacturers under the professional ferrosilicon 75 manufacturers tell us the good way to distinguish!

Check the quality of ferrosilicon 75 from the raw material

Silica is the most basic raw material for the production of ferrosilicon 75, so the quality of silica also determines the quality of ferrosilicon 75, so how to judge the quality of silica? The requirement is that the content of silicon in silica should be greater than 97%, and the element of aluminium trioxide is often formed in smelting of silica, which will not only affect the slagging problem in steelmaking, but also increase the aluminum element in ferrosilicon greatly. The quality of ferrosilicon is affected.

Effect of content of calcium oxide and magnesium oxide on the quality of ferrosilicon 75

Generally, the content of calcium oxide and magnesium oxide in ferrosilicon should be less than 1. If it is larger than this range, the amount of slag will be increased during steelmaking, and the quality of ferrosilicon 75 will be greatly affected by the erosion of iron mouth.

The grain size of silica is also the factor influencing the quality of ferrosilicon 75.

The grain size of silica is also the factor that affects the quality of ferrosilicon 75. If the size of silica is too large, the reaction speed will slow down, and when too small, the powder will affect the permeability of ferrosilicon 75 surface, so how much particle size is appropriate? Here it is required that the grain size of silica used in the production of ferrosilicon 75 should be 60,120 mm, and the size of silica larger than 80 mm should be more than 50% in small silicon iron furnaces, and the grain size of silica should be 2580 mm, of which 50 mm should be more than 40 mm.

Through the analysis of the factors affecting the quality of ferrosilicon 75, we can quickly judge the quality of ferrosilicon 75 in the ferroalloy market, and select the ferrosilicon 75 products suitable for ourselves. If you want to know more about ferrosilicon 75 knowledge can contact the professional ferrosilicon 75 manufacturers Huatuo Metallurgical we will be dedicated to your service!