Supercharge Your Innovation With Domain-Expert AI Agents!

Large-thickness structural steel plate for high-rise building and production method thereof

A technology for high-rise buildings and structural steel plates, applied in the production field of the steel plates, can solve the problems affecting the production and use of steel plates, low yield and high price, and achieve the effects of good comprehensive mechanical properties, high metallurgy level, and reduced production costs.

Inactive Publication Date: 2014-05-21
WUYANG IRON & STEEL +1
View PDF21 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As far as the current existing technology is concerned, structural steel plates with a thickness of more than 100 mm are rolled into large steel ingots, which have the disadvantages of low yield, high cost, and high price, which affects the production and use of this type of steel plate

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The large-thickness high-rise building structural steel plate of this embodiment is smelted with the following components by weight percentage: C: 0.17%, Si: 0.33%, Mn: 1.40%, P: 0.008%, S: 0.002%, V: 0.035%, TAl (total aluminum): 0.050%, Nb: 0.020%, the rest is Fe and unavoidable impurities. The thickness of the steel plate in this embodiment is 120 mm.

[0035] The steps of the method for producing a large-thickness high-rise building structural steel plate of this embodiment are as follows:

[0036] (1) Smelting: Take each component according to the above weight percentage to make molten steel. The molten steel is first smelted by an electric furnace. The molten steel weighs 110 tons and is sent to the LF furnace for refining and adjusting the composition. The total refining time is 50 minutes, and the white slag is maintained. The time is 25min and the lime consumption is 15kg / t. When the molten steel temperature reaches or exceeds 1565℃, transfer to the vacuum degassin...

Embodiment 2

[0046] The large-thickness high-rise building structural steel plate of this embodiment is smelted with the following components by weight percentage: C: 0.16%, Si: 0.15%, Mn: 1.55%, P: 0.010%, S: 0.003%, V: 0.040%, TAl (total aluminum): 0.035%, Nb: 0.030%, the rest is Fe and unavoidable impurities. The thickness of the steel plate in this embodiment is 110 mm.

[0047] The steps of the method for producing a large-thickness high-rise building structural steel plate of this embodiment are as follows:

[0048] (1) Smelting: Take each component according to the above weight percentage to make molten steel. The molten steel is first smelted by an electric furnace. The molten steel weighs 115 tons and is sent to the LF furnace for refining and adjusting the composition. The total refining time is 68 minutes, and the white slag is maintained. The time is 40min and the amount of lime is 15.8kg / t. When the molten steel temperature reaches or exceeds 1570℃, it is transferred to the vacuum...

Embodiment 3

[0058] The large-thickness high-rise building structural steel plate of this embodiment is smelted with the following components by weight percentage: C: 0.19%, Si: 0.35%, Mn: 1.49%, P: 0.011%, S: 0.001%, V: 0.050%, TAl (total aluminum): 0.020%, Nb: 0.025%, the rest is Fe and unavoidable impurities. The thickness of the steel plate in this embodiment is 120 mm.

[0059] The steps of the method for producing a large-thickness high-rise building structural steel plate of this embodiment are as follows:

[0060] (1) Smelting: Take each component according to the above weight percentage to make molten steel. The molten steel is first smelted in an electric furnace. The molten steel weighs 109 tons and is sent to the LF furnace for refining and adjusting the composition. The total refining time is 61 minutes, and the white slag is kept. The time is 38min and the lime consumption is 16.2kg / t. When the molten steel temperature reaches or exceeds 1550℃, it is transferred to the vacuum deg...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
yield strengthaaaaaaaaaa
Login to View More

Abstract

The invention relates to a large-thickness structural steel plate for a high-rise building and further relates to a production method of the steel plate at the same time. The steel plate is formed by melting the following component percentages by weight: 0.16-0.19% of C, not more than 0.55% of Si, 1.40-1.55% of Mn, not more than 0.012% of P, not more than 0.003% of S, 0.020-0.050% of TAl (total aluminum), 0.020-0.30% of Nb, 0.035-0.050% of V, not more than 0.30% of Ni, not more than 0.30% of Cr, not more than 0.05% of Ti, and the balance of Fe and inevitable impurities. The production method comprises the steps as follows: smelting; refining; continuously casting; stacking; heating; rolling; stacking and slowly cooling; detecting defects; normalizing; and obtaining the finished steel plate. The shop sign of the steel plate is Q390GJC / Z35, the delivery state of the steel plate is normalization, continuous casting blanks with cross sections of 330 mm * 2400 mm are adopted to form the steel plate, the maximum thickness of the steel plate is 120 mm, and the requirements of the level II in the JB / T4730.3-2005 detection standard are met; and the steel plate has the characteristics of capability of being formed by the continuous casting blanks, larger thickness, higher strength and toughness, good lamellar tearing resistance and the like, and is suitable for manufacturing structural members for the high-rise building.

Description

Technical field [0001] The invention relates to a large-thickness structural steel plate for high-rise buildings, and also relates to a production method of the steel plate. Background technique [0002] The maximum thickness of steel plates specified in GB / T19879-2005 "Steel Plates for Building Structures" is 100mm, and the actual market demand for building structural steel plates has reached 120mm, and the internal quality must reach the international level (GB / T2970-2004 or JB / T4730-2005 ) The requirements of level II flaw detection standards. As far as the current existing technology is concerned, structural steel plates for buildings with a thickness of more than 100mm are all rolled into large steel ingots, which have the disadvantages of low yield, high cost and high price, which affect the production and use of this type of steel plate. Summary of the invention [0003] In view of the above problems, the purpose of the present invention is to provide a large-thickness (th...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C22C38/12C22C33/04C21D8/02
Inventor 韦明赵文忠李红文王亚琪刘丹胡丽周
Owner WUYANG IRON & STEEL
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com