Information on silicon powders and other metallurgical materials
There are many kinds of silicon metal powder, but also have a lot of functions, can be applied in different fields, and play a different role in different fields. Metal silicon powder as one of the main products of our company, not only can according to the needs of users, recommend and provide qualified metal silicon powder, at the same time with the understanding of metal silicon powder, but also for the majority of users to answer questions, provide more information about metal silicon powder. In order to deepen the information of silicon metal powder, it will mainly focus on the deoxidation of silicon metal powder in the foundry industry.
In the realization of production, by adding a proper amount of silicon metal powder, it can play a certain role. Metal silicon powder can replace ferrosilicon, effectively reduce the production cost and improve the quality of casting. The silicon metal powder reacts with the oxygen in the liquid slag phase or the liquid metal and strongly releases a large amount of combustion heat, because the SiO2 formed in this case quickly escapes, strengthening the kinetic conditions of the reaction. This characteristic is very helpful for the deoxidation process. SiC contains Si and C have the potential to be oxidized, when the temperature is the same when the potential of both approximately the same, so SiC is not only for cold air cupola, but also for hot air cupola is an excellent deoxidizing agent.
The deoxidizing effect of SiC in the induction furnace, SISIC, CSIC is determined by the amount of scrap and its quality, between 85% and more than 95%. For cupola, its significance is small, and the deoxidization effect can only be generalized. The smelting process (including cold air, use of secondary air, oxygen enrichment, hot air, acid, alkaline, lineless) and the factors temporarily adopted during the melting process can have an important effect.
In fact, metal silicon powder can not only be applied to the foundry industry, but also can be applied to other industries. If you are interested in silicon metal powder, want to know the application of silicon metal powder in other industries, you can contact with our company. In addition to silicon metal powder and other metallurgical materials, the company GmbH offers you more information about silicon metal powder and other metallurgical materials. In short, we will try our best to meet your needs.
Whether silicon metal powder, or silicon metal, its main components are silicon, so and silicon has similar properties. Silicon has two allotropes: amorphous silicon and crystalline silicon. Amorphous silicon is a grayish-black powder that is actually a microcrystal. Crystal silicon has the crystal structure and semiconductor properties of diamond, melting point 1410℃, boiling point 2355℃, Mos hardness 7, brittle.
Amorphous silicides are active and can burn violently in oxygen. It reacts with non-metals such as halogens, nitrogen and carbon at high temperatures, and can also react with metals such as magnesium, calcium and iron to produce silicides. Amorphous silicon is almost insoluble in all inorganic and organic acids, including hydrofluoric acid, but soluble in the mixture of nitric acid and hydrofluoric acid. The concentrated sodium hydroxide solution dissolves amorphous silicon and gives off hydrogen gas. Crystal silicon is less reactive and does not combine with oxygen even at high temperatures. It is also insoluble in either inorganic or organic acids, but soluble in a mixture of nitric and hydrofluoric acids as well as in concentrated sodium hydroxide solutions.
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