High-tension/hot-rolled steel sheet having excellent workability, and method for producing same
A technology of hot-rolled steel sheets with excellent workability, applied in the direction of manufacturing tools, chemical instruments and methods, heat treatment furnaces, etc., can solve the problems of insufficient workability, extension flange, etc., and achieve excellent workability and remarkable effects
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0128] (Example 1)
[0129] The molten steel having the composition shown in Table 1 was melted and continuously cast by a generally known method to produce a billet (raw steel) with a wall thickness of 250 mm. After heating these slabs to 1250°C, rough rolling was performed, and finishing rolling set to the finishing temperature shown in Table 2 was implemented. After finishing rolling, the temperature range from the temperature of 880°C to the coiling temperature Cooling was performed at the average cooling rate shown in Table 2, and coiling was performed at the coiling temperature shown in Table 2, to produce a hot-rolled steel sheet having a thickness of 2.3 mm. In addition, some hot-rolled steel sheets (hot-rolled No. 2 of steel No. A) were immersed in a 480°C galvanizing bath (0.1% Al-Zn) to form an adhesion amount of 45g / m 2 After the hot-dip galvanized film, alloying treatment is performed at 520°C to make an alloyed hot-dip galvanized steel sheet.
[0130] [Table 1]
[013...
Example Embodiment
[0155] (Example 2)
[0156] The molten steel of the composition shown in Table 4 was melted and continuously cast by a generally known method to produce a billet (raw steel) with a wall thickness of 250 mm. After heating these slabs to 1250°C, rough rolling was carried out, and finishing rolling set to the finishing temperature shown in Table 5 was implemented. After finishing rolling, the temperature range from the temperature of 880°C to the coiling temperature Cooling was performed at the average cooling rate shown in Table 5, and coiling was performed at the coiling temperature shown in Table 5 to produce a hot-rolled steel sheet having a thickness of 2.3 mm. In addition, some hot-rolled steel sheets (hot-rolled No. 13 for steel No. H and hot-rolled No. 15 for steel No. I) were immersed in a galvanizing bath (0.1% Al-Zn) at 480°C to form adhesion 45g / m 2 The hot-dip galvanized film is made into hot-dip galvanized steel sheet. In addition, for the other part of the hot-rolle...
PUM
Property | Measurement | Unit |
---|---|---|
Tensile strength | aaaaa | aaaaa |
Thickness | aaaaa | aaaaa |
Adhesion | 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.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap