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

Steel plate annealing method

An annealing and steel plate technology, applied in heat treatment equipment, furnaces, heat treatment furnaces, etc., can solve the problems of oxidation color, long annealing cycle, poor temperature control, etc., and achieve low production cost, good production controllability, and product consistency Good results

Inactive Publication Date: 2019-01-04
扬州朝辉机械制造有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above method has the technical problems of long annealing period, poor control of the atmosphere and temperature in the furnace, and surface defects such as oxidation color.

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

[0014] A method for annealing a steel plate, comprising the steps of:

[0015] 1. The cold-rolled steel plate enters the heating furnace, and after 110 seconds, the temperature of the heating furnace is raised to 690°C;

[0016] 2. Rapidly raise the temperature of the heating furnace to 760°C, keep the constant temperature for 20 seconds;

[0017] 3. Continue to heat up to 830°C, keep the constant temperature, and the constant temperature lasts for 10 seconds;

[0018] 4. Rapidly lower the steel plate temperature to 260°C within 40 seconds;

[0019] 5. In an environment with a furnace temperature of 260°C, keep a constant temperature for 200 seconds;

[0020] 6. Rapidly drop the steel plate temperature to 80°C within 5 seconds.

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 steel plate annealing method which comprises the following steps: 1, feeding cold-roll steel sheets in a heating furnace, and raising the furnace temperature of the heating furnace to 680-700 DEG C within 100-120 seconds; 2, rapidly raising the furnace temperature of the heating furnace to 750-800 DEG C, and maintaining the constant temperature, wherein the constant temperature duration is 15-20 seconds; 3, continuously raising the temperature to 820-850 DEG C, and maintaining the constant temperature, wherein the constant temperature duration is 10-15 seconds; 4, rapidly reducing the temperature of the steel plate to 250-300 DEG C within 10-60 seconds; 5, maintaining the constant temperature in an environment at the furnace temperature being 250-300 DEG C, wherein the constant temperature duration is 90-300 seconds; and 6, rapidly reducing the temperature of the steel plate to 60-100 DEG C within 1-10 seconds. By adopting the steel plate annealing method disclosed by the invention, batch continuous annealing can be realized, the product consistency is excellent, the manufacturing process implementation difficulty is low, the production controllability isexcellent, and the production cost is low.

Description

technical field [0001] The invention relates to the technical field of metal heat treatment, in particular to an annealing method for a steel plate. Background technique [0002] The rigidity steel plate refers to a steel plate with a yield strength in the range of 210 to 550 MPa. The industrial annealing of high-strength steel plates mainly includes bell furnace annealing and continuous annealing furnace annealing. The above-mentioned method has the technical problems that the annealing cycle is long, and the atmosphere and temperature in the furnace are not well controlled, and surface defects such as oxidized color are prone to occur. Therefore, there is an urgent need to develop a new steel plate annealing method. Contents of the invention [0003] In order to realize the object of the present invention, adopt following technical scheme: [0004] A method for annealing a steel plate, comprising the steps of: [0005] 1. The cold-rolled steel plate enters the heatin...

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 Applications(China)
IPC IPC(8): C21D1/26C21D9/00
CPCC21D1/26C21D9/0081
Inventor 姜小波
Owner 扬州朝辉机械制造有限公司
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