Aluminum-coated plate strip for kitchen ware and production method of aluminum-coated plate strip

Abstract

The invention relates to an aluminum-coated plate strip for kitchen ware and a production method thereof, the aluminum-coated plate strip comprises at least one layer of aluminum strip and at least two layers of steel strips, the upper and lower surfaces of the aluminum strip are coated with the steel strips, and the steel strips comprise the following chemical components in percentage by weight: 0.0015-0.005% of C, 0.001-0.005% of Si, 0.25-0.50% of Mn, less than or equal to 0.012% of P, less than or equal to 0.006% of S, 0.001-0.005% of Al, 0.004-0.012% of N, 0.0005-0.002% of B, 0.01-0.05% of O, 0.01-0.03% of V, 0.01-0.03% of Mo and the balance of Fe and inevitable impurities; and meanwhile, N is greater than or equal to 1.4 B + 0.6 Al, and V-1. 93 (N-1. 4B-0.6 Al) is greater than or equal to 3.65 C. The aluminum-coated plate strip not only has the strength of steel, but also has the characteristics of good heat dissipation and portability of aluminum, and also has good aluminum coating and drawing properties, the tensile strength of the aluminum-coated plate strip is greater than or equal to 320 MPa, the elongation is greater than or equal to 28%, the strength is not obviously reduced after nitriding treatment, the nitriding treatment requirement in kitchen ware production is met, and the aluminum-coated plate strip can be used for producing and processing novel kitchen ware such as a frying pan.

Description

technical field [0001] The invention belongs to the field of low-alloy steel manufacturing, and in particular relates to an aluminum-clad strip for kitchen utensils and a production method thereof. Background technique [0002] With the improvement of use requirements, it is difficult for a single material to meet the requirements of various performances in the actual use process. Composite plates prepared by selecting a variety of metal materials through various processes combine the advantages of a variety of metals to meet the needs of engineering applications. Aluminum-clad strip is a composite strip with aluminum on the surface of the strip by rolling at room temperature to form a composite strip with aluminum on the surface and steel as the matrix. It has the strength of steel and has good heat dissipation, corrosion resistance, and Lightweight and aesthetically pleasing, especially in greatly reducing costs, it has been widely used in radiator fins, corrosion-resista...

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Problems solved by technology

[0005] Chinese patent CN107881410A "an aluminum-clad strip with excellent heat dissipation effect and its production method" (patent number) and Chinese patent CN108796384A "a high-surface-quality aluminum-clad strip and its production method that is easy to be stamped and processed" are involved in the two patents The aluminum-clad materials are mainly used in the production of radiator fins and home appliance panels, and nitriding treatment is not involved in the production process

The steel-aluminum-steel structure aluminum-clad strips used in the manufacture of frying pans not only require good aluminum-clad properties, but also meet the nitriding requirements. After nitriding at 580°C, they still have sufficient strength. However, the current aluminum-clad The product is difficult to do

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