Unlock instant, AI-driven research and patent intelligence for your innovation.

Flux-cored welding wire and preparation method for in-situ synthesis of WC particle reinforced iron-based composite coating

A technology of flux-cored welding wire and particle reinforcement, applied in the field of metal surfacing materials, can solve the problems of low bonding strength, poor coating surface quality, difficult control, etc., and achieve high coating surface quality, uniform particle distribution, and high bonding strength. Effect

Active Publication Date: 2017-07-21
湖南湘工环保科技开发有限公司
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a flux-cored wire for in-situ synthesis of WC particle-reinforced iron-based composite coatings, which solves the problems of low bonding strength with the substrate, poor coating surface quality and difficult control in existing methods

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

[0029] Embodiment 1: The outer sheath of the welding wire is H08A steel strip, the width of the steel strip is 16 mm, and the thickness is 0.35 mm. The proportion of welding wire powder core is 44 parts of blue tungsten oxide, 8.5 parts of muddy graphite, 19 parts of high-carbon ferrochrome, 2.5 parts of nickel powder, 2.5 parts of ferroboron, 1.5 parts of ferrosilicon, and 13 parts of reduced iron powder. 51%, the wire outer diameter is Submerged arc surfacing is adopted, the welding current is 380A, the flux is 260, the welding test plate is ordinary low-carbon steel, the size is 200×100×20mm, the surfacing welding single-pass welding is 150mm, and the surfacing layer has no visible cracks. Wear resistance test was carried out by MLS-23 wet sand rubber friction and wear testing machine. Under the conditions that the weight is 2.5kg, the abrasive is 40-60 mesh quartz sand, and the mortar ratio is 1.5kg quartz sand mixed with 1kg water, the sample is pre-ground for 1000r, an...

Embodiment 2

[0030] Embodiment 2: The outer sheath of the welding wire is an H08A steel strip with a width of 16 mm and a thickness of 0.35 mm. The proportion of welding wire powder core is 44 parts of blue tungsten oxide, 8.5 parts of muddy graphite, 19 parts of high carbon ferrochrome, 3.5 parts of nickel powder, 2.8 parts of ferroboron, 2.2 parts of ferrosilicon, 13 parts of reduced iron powder, and the filling rate is 52 %, the wire outer diameter is Submerged arc welding is used for surfacing welding, the welding current is 380A, the flux is 260, the welding test plate is ordinary low carbon steel, the size is 200×100×20mm, the surfacing welding single-pass welding is 150mm, and the surfacing layer has no visible cracks. Wear resistance test was carried out by MLS-23 wet sand rubber friction and wear testing machine. Under the conditions that the weight is 2.5kg, the abrasive is 40-60 mesh quartz sand, and the mortar ratio is 1.5kg quartz sand mixed with 1kg water, the sample is pre...

Embodiment 3

[0031] Embodiment 3: The outer sheath of the welding wire is H08A steel strip, the width of the steel strip is 16 mm, and the thickness is 0.35 mm. The proportion of welding wire powder core is 42.4 parts of blue tungsten oxide, 8.0 parts of muddy graphite, 17.4 parts of high-carbon ferrochrome, 2.0 parts of nickel powder, 2.0 parts of ferroboron, 1.0 parts of ferrosilicon, and 12.8 parts of reduced iron powder. 50%, the wire outer diameter is Submerged arc welding is used for surfacing welding, the welding current is 380A, the flux is 260, the welding test plate is ordinary low carbon steel, the size is 200×100×20mm, the surfacing welding single-pass welding is 150mm, and the surfacing layer has no visible cracks. Wear resistance test was carried out by MLS-23 wet sand rubber friction and wear testing machine. Under the conditions that the weight is 2.5kg, the abrasive is 40-60 mesh quartz sand, and the mortar ratio is 1.5kg quartz sand mixed with 1kg water, the sample is p...

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
sizeaaaaaaaaaa
Login to View More

Abstract

The invention discloses a flux-cored wire for the in-situ synthesis of a WC (wolfram carbide) particle reinforced iron-based composite coating and a preparation method for the flux-cored wire. Low-carbon steel is taken as an outer-layer sheath, and a powdery core formed by multi-component alloy powder is arranged in the outer-layer sheath, wherein the powdery core comprises the following components in parts by mass: 42.4 to 48 parts of blue tungsten, 8.0 to 9.5 parts of muddy graphite, 17.4 to 20.6 parts of high-carbon ferrochromium, 2.0 to 3.5 parts of nickel powder, 2.0 to 2.8 parts of ferro-boron, 1.0 to 2.2 parts of ferrosilicon and 12.8 to 23.6 parts of reduced iron powder. The flux-cored wire and the preparation method have the beneficial effects that the bonding strength of WC particles generated by reaction under an arc reaction condition and a substrate is stronger, and the particles are more uniform in distribution and high in coating surface quality.

Description

technical field [0001] The invention belongs to the technical field of metal surfacing materials, and relates to a flux-cored welding wire for in-situ synthesis of WC particle-reinforced iron-based composite coatings and a preparation method. Background technique [0002] Tungsten carbide particles have attracted widespread attention due to their excellent mechanical properties, high hardness, ductility, Young's modulus, and good wettability with iron group elements. In industry, WC is used as the matrix, and Fe, Co or Ni metal is used as the binder phase material. The cemented carbide produced by powder metallurgy has excellent wear resistance and has been widely used. However, WC cemented carbide has high hardness and poor toughness, it is difficult to use cemented carbide as a whole for wear-resistant components, the production process is complicated, and the equipment investment is large, which leads to the high cost of material preparation, which restricts the use of su...

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 Patents(China)
IPC IPC(8): B23K35/30B23K35/40
CPCB23K35/368B23K35/406
Inventor 肖逸锋李雪丰何文远曾凡检杨燕龚建勋
Owner 湖南湘工环保科技开发有限公司
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com