Vermiculizer for disposing high sulfur melted iron in vermicular cast iron production
A technology of vermicular graphite cast iron and vermicularizing agent, which is applied in the field of processing molten iron with high sulfur content, can solve the problems of restricting the production and use of vermicular graphite iron, difficult casting production, and large fluctuation of production, and achieves strong anti-recession ability, Stable creeping effect and stable response
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[0029] Example 1:
[0030] The chemical composition of the creeping agent: magnesium (Mg): 3%, rare earth (RE): 20%, silicon (Si): 42.5%, calcium (Ca): 2.5%, zinc (Zn): 1.5%, barium (Ba ): 1.0%, aluminum (Al): 1.0%, the remainder is iron (Fe).
[0031] Preparation method: Put 11% silicon calcium alloy (SiCa), 5% silicon barium alloy (SiBa) and 42% rare earth ferrosilicon alloy (RESiFe) into the bottom of the crucible, and then add 3% magnesium ingot, 1.0% aluminum ingot, and 1.5% zinc Then put the remaining 30% rare earth ferrosilicon alloy (RESiFe) and 6.5% ferrosilicon alloy (SiFe) on top of magnesium, aluminum, and zinc ingots, tamping and smelting. When the furnace temperature reaches about 1250~1300℃, the charge When it is completely liquid, stir it evenly and pour it into a metal ingot mold, and then crush it into a certain particle size after cooling.
Example Embodiment
[0032] Example 2:
[0033] The chemical composition of the vermicular agent: magnesium (Mg): 4%, rare earth (RE): 18%, silicon (Si): 43.5%, calcium (Ca): 2.0%, zinc (Zn): 1.0%, barium (Ba ): 1.5%, aluminum (Al): 1.5%, the remainder is iron (Fe).
[0034] Preparation method: Put 8.5% silicon calcium alloy (SiCa), 7.5% silicon barium alloy (SiBa) and 35% rare earth ferrosilicon alloy (RESiFe) into the bottom of the crucible, and then add 4% magnesium ingot, 1.5% aluminum ingot and 1.0% zinc Then put the remaining 30% rare earth ferrosilicon alloy (RESiFe) and 12.5% ferrosilicon alloy (SiFe) on top of the magnesium, aluminum, and zinc ingots, tamping and smelting. When the furnace temperature reaches about 1250~1300℃, the charge When it is completely liquid, stir it evenly and pour it into a metal ingot mold, and then crush it into a certain particle size after cooling.
[0035] Example 1 of the effect of the present invention:
[0036] The RDS (Reciprocating Duplicate Systeem) nat...
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