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Method for casting molten iron using induction melting furnace and scrap iron filings
A method for casting molten iron using induction melting furnace and scrap iron filings
The method is characterized in that: the scrap iron is charged into the induction melting furnace, and at the same time, the recarburizer is added into the induction melting furnace, and the ferrosilicon and ferromanganese are added into the induction melting furnace 10-30 minutes before the molten iron is discharged to improve the cast iron. Medium silicon and manganese content.
The carbon equivalent, carbon content, silicon content and temperature of the molten iron are tested when the molten iron is discharged.
The above-mentioned recarburizer adopts coke powder.
The mixing ratio of the iron filings, ferrosilicon and ferromanganese is 1:0.07:0.04.
The present invention has the following advantages and positive effects:
1. Since scrap iron filings are used as raw materials and coke foam is used as recarburizer, the production cost of castings can be greatly reduced. Each ton of castings can reduce the cost by 20%.
2. During the production process, there is no dust, no carbon dioxide and other waste gas, no slag, therefore, it protects the environment and the health of workers.
3. It can reduce energy consumption by 38.7%.
4. The quality of the product is high, and the rejection rate can be reduced to 5%.
5. It can produce ductile iron castings, steel castings and other products.
6. The process is simple.
detailed description:
A method for casting molten iron using an induction melting furnace and scrap iron filings. I00Kg of scrap iron filings with a carbon content of 2.7% is charged into the induction melting furnace. At the same time, 0.14Kg of recarburizer (coke powder) is added to the induction melting furnace. Smelt for 60 minutes (the amount of recarburizer added is inversely proportional to the carbon content of scrap iron filings). Add 0.07Kg of ferrosilicon and 0.04Kg of ferromanganese into the induction melting furnace 15 minutes before the molten iron is released to increase the content of silicon and manganese in the cast iron. When the molten iron is discharged, the carbon equivalent, carbon content, silicon content and molten iron temperature need to be tested. The carbon equivalent should be between 3.05% and 3.6%, the carbon content between 3.0-3.5%, and the silicon content between 1.8- 2.3%, the molten iron temperature is 1500
A method for casting molten iron using induction melting furnace and scrap iron filings
The method is characterized in that: the scrap iron is charged into the induction melting furnace, and at the same time, the recarburizer is added into the induction melting furnace, and the ferrosilicon and ferromanganese are added into the induction melting furnace 10-30 minutes before the molten iron is discharged to improve the cast iron. Medium silicon and manganese content.
The carbon equivalent, carbon content, silicon content and temperature of the molten iron are tested when the molten iron is discharged.
The above-mentioned recarburizer adopts coke powder.
The mixing ratio of the iron filings, ferrosilicon and ferromanganese is 1:0.07:0.04.
The present invention has the following advantages and positive effects:
1. Since scrap iron filings are used as raw materials and coke foam is used as recarburizer, the production cost of castings can be greatly reduced. Each ton of castings can reduce the cost by 20%.
2. During the production process, there is no dust, no carbon dioxide and other waste gas, no slag, therefore, it protects the environment and the health of workers.
3. It can reduce energy consumption by 38.7%.
4. The quality of the product is high, and the rejection rate can be reduced to 5%.
5. It can produce ductile iron castings, steel castings and other products.
6. The process is simple.
detailed description:
A method for casting molten iron using an induction melting furnace and scrap iron filings. I00Kg of scrap iron filings with a carbon content of 2.7% is charged into the induction melting furnace. At the same time, 0.14Kg of recarburizer (coke powder) is added to the induction melting furnace. Smelt for 60 minutes (the amount of recarburizer added is inversely proportional to the carbon content of scrap iron filings). Add 0.07Kg of ferrosilicon and 0.04Kg of ferromanganese into the induction melting furnace 15 minutes before the molten iron is released to increase the content of silicon and manganese in the cast iron. When the molten iron is discharged, the carbon equivalent, carbon content, silicon content and molten iron temperature need to be tested. The carbon equivalent should be between 3.05% and 3.6%, the carbon content between 3.0-3.5%, and the silicon content between 1.8- 2.3%, the molten iron temperature is 1500
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