METHOD OF MAKING STAINLESS STEEL
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United States of America Patent
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Sep 17, 2020
app pub date -
Apr 1, 2019
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Mar 14, 2019
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Abstract
A method of making stainless steel includes smelting metal material and atomizing and powdering the smelted metal material to obtain a first alloy powder, detecting a mass fraction of manganese in the first alloy powder, heating and kneading the first alloy powder with plastic, and granulating, injection molding, and sintering the first alloy powder kneaded with plastic to obtain stainless steel. If the mass fraction of manganese in the first alloy powder is less than 12%, before heating and kneading with plastic, a predetermined amount of manganese-containing material is added to the first alloy powder to obtain a second alloy powder having a mass fraction of manganese of 12-15%.
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