Method for producing hot rolled steel coil
A hot-rolled steel coil and production method technology, applied in the direction of improving process efficiency, etc., can solve the problems of poor material comprehensive performance, large strength margin, low elongation, etc., achieve improved welding performance, good surface quality, and simple method Effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0048] 1) After the composition is designed, the molten iron is pretreated, then smelted in a converter, nitrogen and argon are switched, and the molten steel is obtained after tapping; the supplementary blowing is performed once before tapping, and the tapping time is 4.5 minutes; the alloy is added before tapping 4 / 5; Tapping double slag blocking, the slag thickness at the arrival station is 80mm; the whole process of argon blowing at the argon station takes 17 minutes;
[0049] 2) The weight percentages of the components of the above-mentioned molten steel after tapping are as follows: C 0.06%, Si 0.20%, Mn 0.85%, P0.010%, S 0.005%, Nb+Ti+V 0.040%, Als 0.020%, the rest Iron and unavoidable impurities; the molten steel is continuously cast to obtain a slab, wherein the molten steel in the tundish is 25t and the liquid level is 550mm when the tundish is opened in the first continuous casting furnace; the molten steel in the tundish is 15t when the tundish is quickly changed ,...
Embodiment 2
[0053] 1) After the composition is designed, the molten iron is pretreated, then smelted in the converter, nitrogen and argon are switched, and the molten steel is obtained from tapping; 0 times of supplementary blowing before tapping, and the tapping time is 6.0min; the alloy is added before tapping 4 / 5; Tapping double slag blocking, the slag thickness at the arrival station is 60mm; the argon station handles the whole process of blowing argon for 25 minutes;
[0054]2) The weight percentages of the components of the above-mentioned molten steel after tapping are as follows: C 0.07%, Si 0.25%, Mn 0.95%, P 0.015%, S 0.010%, Nb+Ti+V 0.050%, Als 0.025%, the rest It is iron and unavoidable impurities; the molten steel is continuously cast to obtain a slab, wherein the amount of molten steel in the tundish is 30t and the liquid level is 560mm when the tundish is opened in the first furnace of continuous casting; the amount of molten steel in the tundish is 18t when the tundish is q...
Embodiment 3
[0058] 1) After the composition is designed, the molten iron is pretreated, then smelted in the converter, nitrogen and argon are switched, and the molten steel is obtained after tapping; the supplementary blowing is performed once before tapping, and the tapping time is 8.0min; the alloy is added before tapping 4 / 5; Tapping double slag blocking, the slag thickness at the arrival station is 30mm; the whole process of argon blowing at the argon station is 30min;
[0059] 2) The weight percentages of the components of the above-mentioned molten steel after tapping are as follows: C 0.08%, Si 0.30%, Mn 1.10%, P0.020%, S 0.015%, Nb+Ti+V 0.060%, Als 0.030%, the rest Iron and unavoidable impurities; the molten steel is continuously cast to obtain a slab, wherein the molten steel in the tundish is 28t and the liquid level is 580mm when the tundish is opened in the first continuous casting furnace; the molten steel in the tundish is 20t when the tundish is quickly changed , the liquid...
PUM
Property | Measurement | Unit |
---|---|---|
yield strength | aaaaa | aaaaa |
thickness | aaaaa | aaaaa |
yield strength | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com