Galvanized steel sheet coating material and its production method

A technology of galvanized steel sheet and production method, applied in the direction of metal material coating process, coating, etc., can solve the problems of low bonding force between coating materials and basic materials, general durable corrosion resistance, and lack of rare earths.

Inactive Publication Date: 2006-07-26
JIANGSU LINLONG NEW MATERIALS
View PDF0 Cites 23 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to the lack of aluminum (Al), silicon (Si), and rare earth (Re) elements in the existing coating material structure, there is a certain gap between its performance and the requirements of the coated steel sheet (strip) for the coating material, mainly in The following aspects: 1. Due to the lack of aluminum (Al), its long-lasting corrosion resistance is average, and the service life of the steel plate (strip) after plating is about ten years; and the high temperature (300 ° C) corrosion resistance is poor, and its steel plate ( Belt) has a service life of

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

[0012] Formula: aluminum Al 50%, zinc Zn 47%, silicon SI 2.8%, rare earth Re 0.2%. When feeding, first add aluminum Al, then heat up to 800°C, add silicon Si, and stir evenly, then heat up to 850°C, add rare earth Re, stir evenly, then heat up to 880°C, add zinc Zn, stir well Set aside for 35 minutes, then refining, degassing, heat preservation at 780°C, and casting into ingots. The method of re-refining and degassing is the same as above.

Embodiment 2

[0014] Formula: aluminum Al 60%, zinc Zn 38%, silicon Si 1.9%, rare earth Re 0.1%. When feeding, first add aluminum Al, then heat up to 800°C, add silicon Si, and stir evenly, then heat up to 850°C, add rare earth Re, stir evenly, then heat up to 860°C, add zinc Zn, stir well Set aside for 30 minutes, then refining, degassing, heat preservation at 760°C, and casting into ingots. The method of re-refining and degassing is the same as above.

Embodiment 3

[0016] Formula: aluminum Al 55.4%, zinc Zn 44%, silicon Si 0.5%, rare earth Re 0.1%. When feeding, first add aluminum Al, then heat up to 800°C, add silicon Si, and stir evenly, then raise the temperature to 850°C, add rare earth Re, stir evenly, then heat up to 860°C-880°C, then add zinc Zn, After stirring evenly, place it for 30-35 minutes, then refine, degas, keep warm at 760°C-780°C, and cast into ingots. The method of re-refining and degassing is the same as above.

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

No PUM Login to view more

Abstract

The invention discloses a coating material and producing method of galvanized steel sheet, which comprises the following elements: Al 50%-60%, Zn 38%-47%, SiO 5%-3%, RE 0. 05%-0. 3%, wherein the producing method comprises the following steps: adding 50%-60%Al in founding furnace; heating-up to 795-805deg. c; adding in 0. 5-3 percent Si; mixing equably; heating-up to 845-855deg. c and joining 0. 05-0. 3% RE; stirring equably; heating-up to 860-880deg. c and adding in 38-47 percent Zn; mixing evenly and placing for 35min. The invention improves corrosion resistance and fire resistant property of coated rolled steel.

Description

technical field [0001] The invention relates to a metal material, in particular to a coating material for special galvanized steel sheets. Background technique [0002] In the prior art, the galvanized sheet used is mainly a hot-dip galvanized steel sheet or a hot-dip galvanized steel strip. The coating material of this product is usually 100% metal zinc Zn, and the metal zinc Zn is plated as the coating material on the The role of the steel surface is: 1. Improve the corrosion resistance of the steel and prolong the service life of the steel. 2. Improve the high temperature resistance (300°C) and corrosion performance of steel to expand the application range of steel plates (strips). 3. The coating composed of plating materials is not damaged under the conditions of stretching and deformation processing, so as to improve the mechanical processing performance of the steel plate (strip). 4. The coating composed of plating materials has a strong bonding force with the basic ...

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): C22C21/10C22C1/03C23C30/00
Inventor 冯立新严锦山
Owner JIANGSU LINLONG NEW MATERIALS
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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