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

Method for local heat treatment on panel

A local heat treatment and plate technology, applied in heat treatment furnaces, heat treatment equipment, furnaces, etc., can solve the problems that the performance of the base metal, the melting zone and the heat affected zone cannot be optimized, and the application of three temperatures can improve the utilization of energy. rate and heating efficiency, ensure the quality of processing, easy and precise control of the effect

Active Publication Date: 2017-01-11
QINGDAO SCAN EQUIP TECH CO LTD
View PDF3 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The overall heat treatment cannot apply three temperatures to the base metal, melting zone and heat-affected zone, so only a compromise temperature can be found, so that the properties of the base metal, melting zone and heat-affected zone cannot be optimal

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
  • Method for local heat treatment on panel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] A method for local heat treatment of plates is characterized in that: the steps of the method;

[0022] Step 1: Divide tailor welded blank 1 into base metal zone I, heat affected zone II, fusion zone III, heat affected zone VI and base metal zone V along the x direction. 1~10mm on both sides of III are heat-affected zone II and heat-affected zone VI respectively, and the rest are base metal zone I and base metal zone V;

[0023] Step 2: Design the position of the heating line 2a in the heat-affected zone II, design the position of the heating line 2b in the melting zone III, and design the position of the heating line 2c in the heat-affected zone VI. The main points are the heating line 2a, 2b and 2c are the centerlines of heat-affected zone II, melting zone III and heat-affected zone VI respectively;

[0024] Step 3: Prepare electrodes A and B with elliptical cross-sections. The ratio of the long and short axis of the ellipse is not more than 10. The cross-sectional a...

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 method for local heat treatment on a panel, and relates to the field of advanced manufacturing. The problem that during local heat treatment on large-breadth spliced and welded plates at present, the mechanical performance cannot reach optimal matching is solved. The method comprises the following steps that firstly, a positive electrode and a negative electrode are arranged on the two sides of a metal plate in the thickness direction correspondingly and communicate with a power source through a wire; secondly, the power source is conducted, current passes through the metal plate through one electrode and then passes through the other electrode to form a loop; thirdly, the panel through which the current passes is heated through resistance heat; fourthly, the electrodes move relative to the metal plate according to a preset heating line; and fifthly, tracking cooling is conducted at the position away from a heating point by a certain distance, and the metal mechanical performance at the heating part is improved.

Description

technical field [0001] The invention relates to the field of advanced manufacturing, in particular to a method for local heat treatment of plates. Background technique [0002] In the automotive and aerospace fields, large-scale panels are generally tailor-welded structures, and there are melting zones and heat-affected zones in the welds, and the performance is greatly reduced compared with the base metal. Heat treatment is required to improve performance. However, at present, heat treatment is completed through a heat treatment furnace, that is, overall heat treatment. It is easy to ensure that the temperature is uniform throughout the overall heat treatment in the furnace, and it has great advantages when used for heat treatment of materials with consistent initial properties. However, it cannot solve the heat treatment of materials with different initial properties like tailor welded blanks. The reason is that the optimal heat treatment temperature is determined by it...

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): C21D9/46C21D1/40
Inventor 初冠南陈钢林艳丽丁名区任冬亮
Owner QINGDAO SCAN EQUIP TECH CO LTD
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