Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

High-strength corrosion-resistant cold-resistant hot rolled steel coil as well as production method and application thereof

A technology of hot-rolled steel coils and production methods, applied in the field of hot-rolled steel coils, can solve problems such as cold resistance and corrosion resistance that cannot meet environmental requirements, and poor deformation performance of solar brackets, so as to avoid deformation, improve welding performance, and improve shape Effect

Active Publication Date: 2021-11-16
HEBEI IRON AND STEEL
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of the poor deformation performance of the existing solar support and the cold and corrosion resistance that cannot meet the environmental requirements, the present invention provides a high-strength, corrosion-resistant and cold-resistant hot-rolled steel coil

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • High-strength corrosion-resistant cold-resistant hot rolled steel coil as well as production method and application thereof
  • High-strength corrosion-resistant cold-resistant hot rolled steel coil as well as production method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] This embodiment provides a high-strength, corrosion-resistant and cold-resistant hot-rolled steel coil, which includes the following components in terms of weight percentage: C: 0.15%, Si: 0.1%, Mn: 0.025%, P: 0.020%, S: 0.010%, ALs: 0.02%, Ti: 0.025%, Cu: 0.1%, Cr: 0.3%, V: 0.01%, and the rest are iron and unavoidable impurities.

[0032] The production method of the above-mentioned high-strength corrosion-resistant and cold-resistant hot-rolled steel coil comprises the following steps:

[0033] 150-ton converter vanadium extraction, 150-ton converter smelting, LF refining, and continuous casting to obtain a slab with a thickness of 200mm;

[0034] Place the slab in a heating furnace for heating, the heating time is 120min, and the heating temperature is 1200°C;

[0035] After the slab is released from the heating furnace, it is descaled by high-pressure water with a pressure of 20MPa;

[0036] Then the above-mentioned slab is rolled through the rough rolling mill fo...

Embodiment 2

[0039] This embodiment provides a high-strength, corrosion-resistant and cold-resistant hot-rolled steel coil, which includes the following components in terms of weight percentage: C: 0.20%, Si: 0.08%, Mn: 0.055%, P: 0.018%, S: 0.008%, ALs: 0.06%, Ti: 0.050%, Cu: 0.2%, Cr: 0.6%, V: 0.03%, and the rest are iron and unavoidable impurities.

[0040] The production method of the above-mentioned high-strength corrosion-resistant and cold-resistant hot-rolled steel coil comprises the following steps:

[0041] 150-ton converter vanadium extraction, 150-ton converter smelting, LF refining, and continuous casting to obtain a slab with a thickness of 200mm;

[0042] Place the slab in a heating furnace for heating, the heating time is 200min, and the heating temperature is 1260°C;

[0043] After the slab is released from the heating furnace, it is descaled by high-pressure water with a pressure of 20MPa;

[0044] Then the above-mentioned slab is rolled through 5 passes of the rough ro...

Embodiment 3

[0047] This embodiment provides a high-strength corrosion-resistant and cold-resistant hot-rolled steel coil, which includes the following components in terms of weight percentage: C: 0.18%, Si: 0.05%, Mn: 0.040%, P: 0.015%, S: 0.007%, ALs: 0.05%, Ti: 0.040%, Cu: 0.2%, Cr: 0.5%, V: 0.02%, and the rest are iron and unavoidable impurities.

[0048] The production method of the above-mentioned high-strength corrosion-resistant and cold-resistant hot-rolled steel coil comprises the following steps:

[0049] 150-ton converter vanadium extraction, 150-ton converter smelting, LF refining, and continuous casting to obtain a slab with a thickness of 200mm;

[0050] Place the slab in a heating furnace for heating, the heating time is 130min, and the heating temperature is 1240°C;

[0051] After the slab is released from the heating furnace, it is descaled by high-pressure water with a pressure of 20MPa;

[0052] Then the above-mentioned slab is rolled through the rough rolling mill for ...

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
Widthaaaaaaaaaa
Thicknessaaaaaaaaaa
Login to View More

Abstract

The invention relates to the technical field of hot rolled steel coils, and particularly discloses a high-strength corrosion-resistant cold-resistant hot rolled steel coil as well as a production method and application thereof. The high-strength corrosion-resistant cold-resistant hot rolled steel coil comprises the following components in percentage by weight: 0.15% to 0.20% of C, less than or equal to 0.1% of Si, 0.025% to 0.055% of Mn, less than or equal to 0.020% of P, less than or equal to 0.010% of S, 0.02% to 0.06% of ALs, 0.025% to 0.050% of Ti, 0.10% to 0.20% of Cu, 0.30% to 0.60% of Cr, 0.01% to 0.03% of V and the balance of iron and inevitable impurities. According to the high-strength corrosion-resistant cold-resistant hot rolled steel coil as well as the production method and application thereof, titanium, copper, vanadium, chromium, manganese and other elements are added into steel, so that the hot rolled steel coil has excellent deformation performance and also has high-strength, corrosion-resistant and cold-resistant effects.

Description

technical field [0001] The invention relates to the technical field of hot-rolled steel coils, in particular to a high-strength corrosion-resistant and cold-resistant hot-rolled steel coil and its production method and application. Background technique [0002] Photovoltaic power generation, as a new way of electric energy production, shows an extremely broad development space and application prospect due to its characteristics of no pollution, no noise, and simple maintenance. It is the most potential green energy. At present, in the photovoltaic power generation industry, carbon structural steel Q235B, SS400, etc. are mainly used for solar brackets, which are prone to cracking due to poor plasticity during processing and deformation, which in turn affects the yield of solar brackets. Due to the large-scale construction of photovoltaic power generation, the number of photovoltaic supports used is large, and the environment of photovoltaic power generation is generally harsh...

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
IPC IPC(8): C22C38/02C22C38/04C22C38/06C22C38/20C22C38/24C22C38/28C22C33/04C21D8/02
CPCC22C38/02C22C38/04C22C38/06C22C38/28C22C38/20C22C38/24C22C33/04C21D8/0205C21D8/0226C21D8/0247
Inventor 梁静召刘道孟张超校军立张之晓刘景辉沙毅王志磊
Owner HEBEI IRON AND STEEL
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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