Ferro Silicon standard range of silicon content in Ferro Silicon. The sampling method of Ferro Silicon is correct or not, that is how to represent the sample, determine directly related to product quality.
Practice shows that the Ferro Silicon should be sampled in the casting process, with the content of silicon was representative, and the segregation degree of small. Not from the taphole specimen or by ladle sampling.
Large capacity furnace smelting Ferro Silicon 75, generally two times pouring. The first cast, in the middle of the two modules each take a sample; second times, also in the middle of the two modules to take a sample. These samples are mixed together, as the total sample of the furnace. This sampling of its composition is representative, because the first sample is exactly the upper part of the molten iron ladle in the middle of the molten iron, the second sample is exactly in the lower part of the molten iron ladle in the middle of the molten iron.
Take a Ferro Silicon 45 smelting, casting, can take liquid sample in the middle of the ingot mold.
Sampling should be like spoon and sample model by charcoal, so that the liquid molten Ferro Silicon ladle, the analysis accuracy influence.
If can't take liquid, at the midpoint of the diagonal of the ingot three or four bisectrix take column specimens, the weight of each point to roughly equal, mixed together, as the iron furnace of the total sample.
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