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A kind of vanadium-containing hot-rolled pickling plate and its pickling method

A hot-rolled pickling and pickling technology, applied in the field of metallurgy, can solve problems such as lack of research, and achieve the effects of avoiding production line shutdown, ensuring strength and plasticity, and increasing nucleation rate

Active Publication Date: 2021-11-19
承德承钢钒钛冷轧薄板有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In view of how to improve the surface quality of vanadium-containing pickling boards, how to control various process parameters in the production process is the key to producing qualified products, but there is currently a lack of research on related production aspects

Method used

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  • A kind of vanadium-containing hot-rolled pickling plate and its pickling method
  • A kind of vanadium-containing hot-rolled pickling plate and its pickling method
  • A kind of vanadium-containing hot-rolled pickling plate and its pickling method

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Embodiment Construction

[0019] Specific embodiments of the present invention in conjunction with the following in further detail below.

[0020] 1) of the present invention, the vanadium-containing pickling hot plate, and its chemical composition has a mass percentage: C: 0.180 ~ 0.250%, Mn: 0.150 ~ 0.250%, Si≤0.10%, P≤0.025%, S ≤0.015%, V: 0.035 ~ 0.060%, N≤0.0060%, Cr≤0.30%, Ni≤0.30%, Cu≤0.30%, the balance being Fe and unavoidable impurities.

[0021] Chemical composition of Examples 1-12 pickling hot-rolled sheet and the mass percentage of the embodiment shown in Table 1.

[0022] 2) the pickling method according to the present invention, the vanadium-containing pickling hot-rolled sheet, including welding, scale breaking, pickling, rinsing, flat, oiled, coiling process, the specific production process is as follows:

[0023] (1) breaking scale, pickling, rinsing, drying, smooth, winding tension control step, the step scales break tension scale breaker 120 ~ 180KN, the pickling step, the total tension...

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Abstract

A vanadium-containing hot-rolled pickling plate and its pickling method, its chemical composition and mass percentage are: C: 0.180-0.250%, Mn: 0.150-0.250%, Si≤0.10%, P≤0.025%, S≤0.015%, V: 0.035~0.060%, N≤0.0060%, Cr≤0.30%, Ni≤0.30%, Cu≤0.30%, the balance is Fe and unavoidable impurities. Pickling methods include welding, scale breaking, pickling, rinsing, drying, smoothing, oiling, and coiling. The invention adopts reasonable composition design and efficient pickling process, and the obtained hot-rolled pickling plate has high strength and good welding performance, and is suitable for girders, seat slide rails, structural parts, etc. of new energy vehicles, and is ideal for lightweight vehicles Material.

Description

Technical field [0001] The present invention belongs to the technical field of metallurgy, in particular to a pickling hot-rolled sheet and vanadium-containing pickling. Background technique [0002] Pickling hot-rolled sheet is increasingly recognized by the market, not only because the cost of production is lower than cold-rolled sheet, but also because of its mechanical properties and surface quality in the continuous development of technology, has been effectively protected under production control capabilities continue to improve the background, so pickling the hot rolled sheet in some areas of buildings, appliances, cars, etc. can completely replace cold-rolled sheet. Vanadium-containing hot-rolled sheet has two advantages: First, effectively enhance the strength of steel, and second, to enhance the weldability of products, it can be used as the material of choice for new energy lightweight vehicles. [0003] Vanadium-containing acid in the production process of different p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C38/02C22C38/04C22C38/42C22C38/46C23G3/02C23G1/08
CPCC22C38/001C22C38/002C22C38/02C22C38/04C22C38/42C22C38/46C23G1/08C23G3/027
Inventor 马占军王猛唐嘉悦孔德新郭志王广英
Owner 承德承钢钒钛冷轧薄板有限公司
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