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

Welding flux for electroslag surfacing

A technology of electroslag surfacing and flux, applied in arc welding equipment, welding medium, welding equipment, etc., can solve the problems of molten pool flow, inability to carry out surfacing welding of deposited metal thickness, etc., to prevent the deterioration of slag peeling. Effect

Inactive Publication Date: 2008-07-30
KOBE STEEL LTD
View PDF0 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in the above-mentioned conventional flux for overlay welding, when performing electroslag overlay welding using a strip electrode made of stainless steel typified by SUS347 series, the upper limit of the thickness of the deposited metal is 4 mm. Even if the welding current is increased above this, the molten pool will flow, so it is impossible to carry out surfacing welding with a thickness of deposited metal of 5 mm or 6 mm.

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
  • Welding flux for electroslag surfacing
  • Welding flux for electroslag surfacing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] The flux for surfacing welding of the present invention is characterized in that, compared with conventional fluxes, it imparts viscosity to the molten slag and increases SiO as a molten pool flow prevention component. 2 , and will be related to the slag stripping component of CaF 2 , MgF 2 and / or AlF 3 , and the content of MgO is specified in an appropriate range, thus preventing the accompanying SiO 2 The deterioration of the slag detachability brought about by the increase. As a result, it is possible to carry out overlay welding with a deposited metal thickness of 4 mm, which is considered to be a standard deposited metal thickness, and to continue welding at a welding speed of 35 cm / min, which is higher than that of conventional fluxes (currently: 30 cm / min ), and unlike conventional welding fluxes whose upper limit is 4mm in deposited metal thickness, it is possible to perform overlay welding with deposited metal thickness of 5mm and 6mm.

[0015] Hereinafter,...

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

Provided is an electroslag welding flux for welding. With the use of a band electrode, the electroslag welding flux can make bead welding process with a 5mm or 6mm deposited metal thickness, different form the existing welding flux with a 4mm upper deposited metal thickness. The welding flux provided in the invention contains the following components, by weight, CaF2:35 to 50 %, SiO2: 15 to 20 % without 15% involved, Al2O3: 10 to 20%, CaO: no more than 10%, the sum of MgF2 and AlF3: 5 to 10%, MgO: 5 to 15%.

Description

technical field [0001] The present invention relates to a flux for electroslag overlay welding, and relates to a welding flux for electroslag overlay welding using a strip electrode. corrosion function. Background technique [0002] Conventionally, Japanese Patent Publication No. 62-49155 discloses such a flux for electroslag overlay welding (hereinafter simply referred to as flux for overlay welding). This conventional surfacing flux is aimed at improving the slag detachability and sintering resistance during high-speed welding at a welding speed of 30 cm / min. The first surfacing flux contains: CaF 2 : 30 to 60% by weight, Al 2 o 3 : 10 to 30% by weight, SiO 2 : 5 to 15% by weight, CaO: 10% by weight or less, MgF 2 and / or AlF 3 The total of: 3 to 20% by weight, the total of MgO and / or BaO: 2 to 15% by weight, and satisfy (MgF 2 +AlF 3 ) / SiO 2 : The condition of 0.50 or more. In addition, the second flux for build-up welding contains, in addition to the flux compon...

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): B23K35/362B23K25/00
CPCB23K9/04B23K35/3601B23K35/362
Inventor 渡边博久加纳觉
Owner KOBE STEEL 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