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

A technology of hot-dip galvanized steel sheet and composite floor, applied in hot-dip galvanizing process, coating, metal material coating process, etc. The effect of knotting performance and easy processing

Active Publication Date: 2021-03-26
SHANGHAI MEISHAN IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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

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Embodiment Construction

[0048] Below in conjunction with embodiment 1-6, the present invention will be further described, as shown in table 1-4.

[0049] Table 1 shows the chemical composition (by weight percentage) of the substrate of the hot-dip galvanized steel sheet according to the embodiment of the present invention, and the balance is Fe and unavoidable impurities.

[0050] Table 1 The chemical composition of the substrate of the hot-dip galvanized steel sheet in the embodiment of the present invention, unit: weight percent

[0051]

[0052]

[0053] Through converter smelting, a continuous casting slab meeting the required chemical composition is obtained, with a thickness of 210-240 mm, a width of 800-1300 mm, and a length of 5000-10000 mm.

[0054] The continuous casting slab is heated to 1140-1240°C in a heating furnace and then hot-rolled. The hot-rolling is a two-stage rolling process. The rough rolling is 5-pass continuous rolling, and the finish rolling is 7-pass continuous rolli...

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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. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/02C22C38/04C22C38/06C23C2/06C23C2/40C21D8/02B05D7/14C09D175/04C09D133/04C09D5/08C09D7/65C09D7/63
CPCC22C38/02C22C38/04C22C38/06C22C38/002C22C38/001C21D8/0205C21D8/0226C21D8/0263C23C2/06C23C2/40B05D7/14C09D175/04C09D133/04C09D5/08C09D7/65C09D7/63C21D2211/005C21D2211/009C21D2211/004C08L23/06C08K5/54
Inventor 闫秉昊魏宝民王孝建丁志龙
Owner SHANGHAI MEISHAN IRON & STEEL CO LTD
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