Self-lubricating hot-dip galvanized steel sheet for steel-wood composite floor and manufacturing method of self-lubricating hot-dip galvanized steel sheet

Abstract

The invention discloses a self-lubricating hot-dip galvanized steel sheet for a steel-wood composite floor and a manufacturing method of the self-lubricating hot-dip galvanized steel sheet. The self-lubricating hot-dip galvanized steel sheet for the steel-wood composite floor and the manufacturing method of the self-lubricating hot-dip galvanized steel sheet are mainly used for solving the technical problems of poor bonding performance and high manufacturing cost of an existing self-lubricating hot-dip galvanized steel sheet in the prior art. According to the self-lubricating hot-dip galvanized steel sheet for the steel-wood composite floor, a base plate of the self-lubricating hot-dip galvanized steel sheet comprises the following chemical components of, by weight: 0.02% to 0.06% of C, less than or equal to 0.04% of Si, 0.2% to 0.4% of Mn, less than or equal to 0.02% of P, less than or equal to 0.017% of S, 0.025% to 0.050% of Alt, 0.001% to 0.003% of B and the balance Fe and inevitable inclusion elements. According to the the hot-dip galvanized steel sheet, the dynamic friction coefficient is smaller than or equal to 0.12, the surface energy is larger than or equal to 38 dyn/cm,the white rust area is smaller than or equal to 5% in a 120 hour salt spray test. The hot-dip galvanized steel sheet is good in bonding performance, good in lubricating performance, easy to machine and low in production cost.

Description

technical field [0001] The invention relates to a cold-rolled hot-dip galvanized steel sheet, in particular to a self-lubricating hot-dip galvanized steel sheet for a steel-wood composite floor and a manufacturing method thereof, belonging to the technical field of iron-based alloys. Background technique [0002] With the continuous development of the construction industry, the new floor for indoor construction has broad prospects. Different from the traditional floor, the new floor adopts the steel-wood composite method, and a thin steel plate is bonded and coated around the wooden board, which has the characteristics of low cost and beautiful appearance. At present, the new type of floor has been used in the Japanese Olympic venues and the World Expo. The manufacture of new flooring needs to go through processes such as stamping, steel-wood bonding, etc., and it is required to have load-bearing, corrosion-resistant, and friction-resistant properties during subsequent use. ...

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a self-lubricating hot-dip galvanized steel sheet for steel-wood composite flooring and its manufacturing method, which mainly solves the technical problems of poor bonding performance and high manufacturing cost of the existing self-lubricating hot-dip galvanized steel sheet in the prior art , to meet the processing needs of steel-wood composite flooring in the construction industry

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