Zhenan Metallurgy Co., Ltd
ZHENAN METALLURGY CO., LTD
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Medium, low and micro-carbon ferrochrome generally uses silicon-chromium alloy, chromite and lime as raw materials, and is refined and desiliconized in 1,500~6,000 kVA electric furnaces, using high-basicity slag operation (CaO/SiO2 is 1.6~1.8). Low and micro-carbon ferrochrome is also produced on a large scale by hot exchange. Two electric furnaces are used in production, one for smelting silicon-chromium alloy and the other for melting slag composed of chrome ore and lime. The refining reaction is carried out in two stages in two buckets: ① After the slag from the slag furnace is injected into the first bucket, the silicon-chromium alloy that has been preliminarily desiliconized in the other bucket is added. Since the excess amount of oxidant in the slag is large and the desiliconization is sufficient, a micro-carbon ferrochrome with a silicon content of less than 0.8% and a carbon content of as low as 0.02% can be obtained. ② After the slag (containing about 15% Cr2O3) after the reaction in the first bucket is moved to the second bucket, the silicon-chromium alloy (containing 45% silicon) smelted in the silicon-chromium electric furnace is hot exchanged into the slag. After the reaction, the silicon-chromium alloy (containing about 25% silicon) with preliminarily desiliconized is obtained, which is added to the first bucket for further desiliconization. The slag containing less than 2~3% Cr2O3 can be discarded.
Specifications ferro chrome
| Grade | Chemical Compositions(%) | ||||
| Cr | C | Si | P | S | |
| ≥(Min) | ≤(Max) | ||||
| LC-Cr65V3 | 65.0 | 0.03 | 1.0 | 0.03 | 0.03 |
| LC-Cr65V6 | 65.0 | 0.06 | |||
| LC-Cr65V10 | 65.0 | 0.10 | |||
| LC-Cr60V3 | 60.0 | 0.03 | |||
| LC-Cr60V6 | 60.0 | 0.06 | |||
| LC-Cr60V10 | 60.0 | 0.10 | |||
| LC-Cr60D25 | 60.0 | 0.25 | |||
| LC-Cr60D50 | 60.0 | 0.50 | |||
Packing & Delivery
Packing: 1 ton big bag, 20-25mt in 20' container
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