Vacuum packaging method for symmetric hot rolling manufactured stainless steel clad plates
A technology of vacuum packaging and stainless steel plate, which is applied in metal rolling, manufacturing tools, metal rolling, etc. It can solve the problems such as the influence of bonding strength and the inability to meet the technical requirements of stainless steel clad plate, so as to improve production efficiency and achieve good separation effect Effect
Active Publication Date: 2014-03-19
CHINA FIRST HEAVY IND
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Problems solved by technology
The encapsulation method of the stainless steel clad plate determines the encapsulation quality and the degree of vacuum in the composite blank. Since the degree of vacuum determines the oxidation degree and bonding rate of the c
Method used
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Embodiment 1
[0020] Such as figure 1 As shown, the outer surface of the seal 2 is flush with the outer surface of the low-carbon steel plate 1 , the weld of the seal 2 is provided with a groove, and the weld 5 is welded between the groove and the low-carbon steel plate 1 .
Embodiment 2
[0022] Such as figure 2 As shown, the outer surface of the seal 2 is lower than the outer surface of the low carbon steel plate 1, and the weld seam 5 is welded between the outer surface of the seal 2 and the inner surface of the low carbon steel plate 1.
[0023] Example 2
[0024] Such as image 3 As shown, the outer surface of the seal 2 is higher than the outer surface of the low carbon steel plate 1, and the weld seam 5 is welded between the inner surface of the seal 2 and the outer surface of the low carbon steel plate 1.
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The invention discloses a vacuum packaging method for symmetric hot rolling manufactured stainless steel clad plates and belongs to the technical field of steel rolling technologies. The method comprises cleaning stainless steel plates with acetone or ethyl alcohol and drying the stainless steel plates after removing oxide layers on the two surfaces of the two stainless steel plates; removing oxide layers on the low-carbon steel surfaces attached to the stainless steel plates, and then performing cleaning with acetone or ethyl alcohol and drying; painting isolating coatings between binding surfaces of the two dried stainless steel plates and then superposing the two stainless steel plates, and welding and fixing the peripheries together; putting the welded and fixed stainless steel plates between surfaces to be combined of two low-carbon steel plates. A through hole is drilled in the middle of one seal strip, the peripheries of the inner surfaces of the seal strips around the two low-carbon steel plates are welded, a negative-pressure machine is communicated with the through hole in the seal strip to pump air between the two low-carbon steel plates, vacuum pumping is performed till the air press is between 0.01 Pa and 1.0 Pa, and the hole is welded and sealed, accordingly, sealing of combined interfaces between the stainless steel plates and the low-carbon steel plates is completed.
Description
technical field [0001] The invention relates to a vacuum encapsulation method for manufacturing stainless steel clad plates by symmetrical hot rolling, and belongs to the technical field of steel rolling. Background technique [0002] Stainless steel clad plate refers to the metallurgical compounding of a thinner layer of stainless steel on a thicker low-carbon steel or low-alloy steel plate, which has both the corrosion resistance of stainless steel and the excellent mechanical properties of low-carbon steel. Hot-rolled stainless steel clad plates can meet the dual performance requirements of various structural materials for high strength and high corrosion resistance. has broad practical prospects. The weight of stainless steel in the stainless steel composite plate accounts for about 1 / 10-1 / 5, which is 70-80% less than the amount of alloy elements such as Cr and Ni in the single-layer stainless steel plate, and the overall cost is reduced by 30-50%. The production and a...
Claims
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Inventor 李龙张心金刘会云祝志超
Owner CHINA FIRST HEAVY IND
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