High-strength abrasion-proof cast steel lining board and manufacturing method thereof
A manufacturing method and high-strength technology, applied in the field of metal wear-resistant materials, can solve the problems of high carbon content and easy cracking, and achieve the effects of less inclusions, simple production process and low production cost
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Embodiment 1
[0020] Melting molten steel with a 500 kg medium frequency induction furnace, the manufacturing process steps are:
[0021] ①Steel scrap, recarburizer and ferrochrome are mixed, heated and melted, and ferrosilicon and ferromanganese are added after molten steel is melted;
[0022] ② After adjusting the composition before the furnace, the temperature is raised to 1634°C, first adding aluminum deoxidizer, then adding a composite deoxidizer containing silicon, calcium, barium and aluminum, and then out of the furnace;
[0023] ③Crush ferrotitanium, ferroboron, and lanthanum-cerium mixed rare earth into small pieces with a particle size of less than 12mm. After drying at a temperature below 200°C, place them at the bottom of the ladle, and use the method of pouring into the ladle to carry out composite modification of molten steel;
[0024] ④ Cast the liner with a sand mold, and the pouring temperature is 1528°C;
[0025] ⑤ After pouring for 4 hours, open the box and air-cool the...
Embodiment 2
[0032] Melting molten steel with a 1000 kg medium frequency induction furnace, the manufacturing process steps are:
[0033] ①Steel scrap, recarburizer and ferrochrome are mixed, heated and melted, and ferrosilicon and ferromanganese are added after molten steel is melted;
[0034] ② After adjusting the ingredients before the furnace, the temperature is raised to 1624°C, first adding aluminum deoxidizer, then adding a composite deoxidizer containing silicon, calcium, barium and aluminum, and then out of the furnace;
[0035] ③Crush ferrotitanium, ferroboron, and lanthanum-cerium mixed rare earth into small pieces with a particle size of less than 12mm. After drying at a temperature below 200°C, place them at the bottom of the ladle, and use the method of pouring into the ladle to carry out composite modification of molten steel;
[0036] ④ Cast the liner with sand mold, and the pouring temperature is 1517°C;
[0037] ⑤ After pouring for 3 hours, open the box and air-cool the ...
Embodiment 3
[0044] Melting molten steel with a 750 kg medium frequency induction furnace, the manufacturing process steps are:
[0045] ①Steel scrap, recarburizer and ferrochrome are mixed, heated and melted, and ferrosilicon and ferromanganese are added after molten steel is melted;
[0046] ② After adjusting the ingredients before the furnace, raise the temperature to 1638°C, add aluminum for deoxidation first, then add a composite deoxidizer containing silicon, calcium, barium and aluminum, and then take it out of the furnace;
[0047] ③Crush ferrotitanium, ferroboron, and lanthanum-cerium mixed rare earth into small pieces with a particle size of less than 12mm, and after drying below 200°C, place it at the bottom of the ladle, and perform composite modification of molten steel by the method of pouring into the ladle;
[0048] ④ Cast the liner with sand mold, the pouring temperature is 1536°C;
[0049] ⑤ After pouring for 6 hours, unpack the air-cooled liner, remove the pouring riser, ...
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