Heat treatment method for economical copper-containing antibacterial stainless steel hot rolled plate

Abstract

The invention aims to provide a heat treatment method for an economical copper-containing antibacterial stainless steel hot rolled plate. Copper-containing antibacterial stainless steel is composed of, by weight, 0.01-0.03% of C, 0.1-0.3% of Si, 0.1-0.5% of Mn, less than or equal to 0.02% of S, less than or equal to 0.03% of P, 7.5-8.5% of Ni, 17.0-19.0% of Cr, 4.5-5.5% of Cu and the balance Fe. Antibacterial heat treatment of the copper-containing antibacterial stainless steel hot rolled plate comprises the following steps that firstly, the copper-containing antibacterial stainless steel hotrolled plate subjected to finishing rolling is put into a holding furnace and cooled to the holding temperature with the furnace; and secondly, the copper-containing antibacterial stainless steel hotrolled plate is taken out after being subjected to holding in the holding furnace for certain time. The copper-containing antibacterial stainless steel treated through the method can achieve the antibacterial function to the greatest extent, subsequent solid solution and aging heat treatment do not need to be conducted, thus, the production procedures of the antibacterial stainless steel are reduced, and the production cost is reduced.

Description

technical field [0001] The invention relates to a heat treatment method for copper-containing antibacterial stainless steel, in particular to an economical heat treatment method for copper-containing antibacterial stainless steel hot-rolled plates. Background technique [0002] Copper-containing antibacterial stainless steel is a new type of steel material developed in recent years. It uses the continuous dissolution of trace Cu ions to show a strong, broad-spectrum and long-lasting bactericidal function. This new material with both structure and function has been integrated. Realized industrial production and application. However, in order to achieve better antibacterial performance in the industrial production process of copper-containing antibacterial stainless steel, a series of heat treatment processes such as solid solution and aging are required to precipitate enough nano-copper-rich phases in the matrix, which not only gives copper-containing antibacterial properties...

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Problems solved by technology

However, in order to achieve better antibacterial performance in the industrial production process of copper-containing antibacterial stainless steel, a series of heat treatment processes such as solid solution and aging are required to precipitate enough nano-copper-rich phases in the matrix, which not only gives copper-containing antibacterial properties The industrialized production of stainless steel brings an increase in the production process and increases the cost

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