Preparation method of martensitic stainless steel having broad-spectrum antimicrobial effects

A technology of martensitic stainless steel and antibacterial effect, which is applied in the field of iron and steel metallurgy, can solve the problems of unexplained antibacterial performance, rapidity, durability, broad-spectrum antibacterial performance, antibacterial rate decline, disappearance, etc., to inhibit and kill bacteria, The effect of long-lasting effect, excellent mechanical properties and corrosion resistance
CN102560281AInactive Publication Date: 2012-07-11HAIMEN HAIZHEN VACUUM EQUIP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HAIMEN HAIZHEN VACUUM EQUIP
Publication Date
2012-07-11
Estimated Expiration
Not applicable · inactive patent
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Abstract

The invention discloses a preparation method of martensitic stainless steel having broad-spectrum antimicrobial effects. The preparation method provided by the invention is characterized by comprising the following steps of 1, before smelting, melting Ag and Cu into an intermediate alloy according to ratios and adding the intermediate alloy as an auxiliary material into raw metals, 2, carrying out smelting by an electric furnace-AOD-VOD and carrying out pouring, 3, carrying out hot rolling, carrying out annealing at a temperature of 860 to 880 DEG C, carrying out cold rolling, carrying out annealing at a temperature of 1030 to 1050 DEG C, and carrying out acid-washing and polishing, and 4, carrying out antibacterial treatment through carrying out heat preservation at a temperature of 1160to 1180 DEG C for 1 to 2 hours and cooling in air to a room temperature, and carrying out aging treatment through carrying out heat preservation at a temperature of 530 to 550 DEG C for 8 to 10 hoursfor aging treatment and cooling in air.
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Description

technical field

[0001] The invention relates to the field of iron and steel metallurgy, in particular to a preparation method of martensitic stainless steel. Background technique

[0002] Stainless steel has a history of more than 90 years since it came out in the last century. The invention of stainless steel is a major achievement in the history of metallurgy in the world. The production of stainless steel has laid an important material and technological foundation for industrial and technological progress. In the course of its development, it has gradually formed four categories: ferritic stainless steel, martensitic stainless steel, austenitic stainless steel, and austenitic-ferritic duplex stainless steel.

[0003] It is well known that silver and copper can inhibit the growth of bacteria, and they were used as drinking water containers and medical appliances as early as 1000 AD. The incomparable superiority of stainless steel itself has led to the rise of research on...

Claims

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