A cold-rolled double-sided stainless steel composite plate with excellent comprehensive performance and its manufacturing method
A comprehensive performance, stainless steel technology, applied in the direction of metal rolling, etc., can solve the difficulty in controlling the uniformity of the cladding thickness of the cold-rolled stainless steel clad plate, it is difficult for the stainless steel clad plate to meet the elongation technical requirements, and the carbon steel substrate is not uniform in structure. and other problems, to achieve the effect of stable control of structure and grain size, no yield pattern defects, and no orange peel defects
Active Publication Date: 2021-02-19
BAOSTEEL DESHENG STAINLESS STEEL +1
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Problems solved by technology
The inventive method mainly adopts the composite method of solid-liquid combination, the interface bonding force is strong, and it is not easy to delaminate after forming and welding, but it is difficult to control the thickness uniformity of the clad layer of the cold-rolled stainless steel clad plate obtained by this method, and at the same time, due to the carbon steel The carbon content in the base material is high, and there is a lack of stabilizing elements. There will be an obvious decarburization layer on the side of the carbon steel at the interface junction. The structure of the carbon steel base material is uneven, and surface defects are prone to occur after flat
In addition, it is also difficult for the stainless steel clad sheet with Q195~Q235 plain carbon steel as the base material to meet the technical requirement of elongation of 45%.
[0009] In summary, there is currently no economical cold-rolled stainless steel composite coil that can meet the needs of the above users.
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[0040] The present invention will be further described below in conjunction with the embodiments and accompanying drawings.
[0041] Table 1 shows the composition and compounding ratio of the base plate and double plate steel of the embodiment of the present invention and the comparative example, and Table 2 shows the key manufacturing process and performance of the composite plate of the embodiment of the present invention and the comparative example.
[0042] According to the composition in Table 1 and the composite ratio of the total thickness of the composite board accounting for 10-30% of the total thickness of the composite board, select and process the carbon steel substrate and the stainless steel doubler board, and then make double-sided stainless steel by explosion, diffusion welding or vacuum welding. Composite blanks are made by vacuum electron beam welding firstly. After hot rolling, annealing after hot rolling + pickling and cold rolling, they are made into hard-r...
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Abstract
A cold-rolled double-sided stainless steel clad plate with excellent comprehensive performance and its manufacturing method. The clad plate includes a base plate and a clad plate. The upper and lower surfaces of the base plate are integrally and continuously covered with the clad plate. The base plate and the clad plate are bonded by atomic diffusion metallurgy. A cold-rolled double-sided stainless steel clad plate is formed; wherein, the substrate is ultra-low carbon aluminum-killed steel, and the clad plate is 304 type austenitic stainless steel. The cold-rolled double-sided stainless steel composite plate prepared by the invention has good surface quality, uniform structure of carbon steel substrate, room temperature elongation of more than 45%, excellent corrosion resistance, stable material performance, not only has the performance of pure stainless steel, but also can be large The cost is greatly reduced, and it can be used as a substitute for 304 stainless steel. It is widely used in decorative panels and fields with high forming requirements.
Description
technical field [0001] The invention relates to a stainless steel clad plate, in particular to a cold-rolled double-sided stainless steel clad plate with excellent comprehensive performance and a manufacturing method, in particular to an economical double-sided cold-rolled stainless steel clad plate with excellent comprehensive performance and a manufacturing method. Background technique [0002] Stainless steel clad steel plate is a kind of high-efficiency and energy-saving material of two metals, which uses carbon steel or stainless steel as the matrix, and is integrally and continuously coated with stainless steel on one or both sides. It gives full play to the advantages of the characteristics of the two materials. It not only has the corrosion resistance, wear resistance and decoration of stainless steel, but also has the good mechanical and forming properties of carbon steel. It is an extension of stainless steel. At the same time, it can save precious metals such as ...
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IPC IPC(8): C22C38/14C22C38/58C22C38/40C21D8/02B21B1/38
Inventor 王治宇宋红梅许海刚袁向前焦四海张庆峰
Owner BAOSTEEL DESHENG STAINLESS STEEL
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