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

A kind of preparation method of aluminum alloy welding material

A technology for aluminum alloys and welding materials, applied in welding equipment, metal processing equipment, welding/cutting media/materials, etc., can solve the problems of poor plastic formability of welding materials, difficult matching of process parameters, uneven plasticity of materials, etc., to achieve performance Uniform, excellent overall performance, the effect of reducing or eliminating the formation of pores

Active Publication Date: 2022-04-19
CHINA WEAPON SCI ACADEMY NINGBO BRANCH
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the aluminum alloy welding wire with rare earth and transition group elements has a complex structure. Due to the composition segregation and structure difference of the ingot, when the welding material is drawn from Φ9.5mm to about Φ3.0mm, it is difficult to match the process parameters, resulting in the welding material processing. It may lead to uneven plasticity of the material, easy wire breakage, cracking and severe work hardening, resulting in poor plasticity and low yield of welding materials.
[0004] Therefore, using the current extrusion-drawing processing method to prepare rare earth and transition element microalloyed welding consumables will still have many technical bottlenecks, and the processing technology needs to be designed and optimized according to the composition characteristics of the welding consumables

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
  • A kind of preparation method of aluminum alloy welding material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The mass percentage of the aluminum alloy welding material in this example is Mg: 4.5%, Mn: 1%, Zn: 1.2%, Ti: 0.12%, Sc: 0.02%, Zr: 0.35%, Fe≤0.2%, Si≤0.15% , the balance being Al.

[0030] The preparation of this welding material comprises the following steps:

[0031] 1) Melt the prepared raw materials in the vacuum melting equipment, vacuumize to 9Pa and start to heat up and melt. After the temperature in the melting furnace rises to 400°C, fill the vacuum furnace with inert gas to a vacuum value of 800Pa; continue to heat up the melt To 850°C, after the alloy is completely melted, inert gas is introduced into the bottom of the melt, and mechanically stirred for 10 minutes; after the stirring, the inert gas is stopped, and after standing for 10 minutes, cast to obtain a Φ100mm aluminum alloy round ingot.

[0032] 2) Perform homogenization annealing treatment on the ingot, homogenization heat treatment system: 350°C / 3h+450°C / 15h, and then cut to length to remove surf...

Embodiment 2

[0037]The mass percentage of the aluminum alloy welding material in this example is Mg: 5.5%, Mn: 0.8%, Zn: 0.8%, Ti: 0.08%, Sc: 0.2%, Zr: 0.2%, Fe≤0.2%, Si≤0.15% , the balance being Al.

[0038] The preparation of this welding material comprises the following steps:

[0039] 1) Melt the prepared raw materials in the vacuum melting equipment, vacuumize to 8Pa and start to heat up and melt. After the temperature in the melting furnace rises to 450°C, fill the vacuum furnace with inert gas to a vacuum value of 1000Pa; continue to heat up to 850°C After the alloy is completely melted, an inert gas is introduced into the bottom of the melt, and mechanically stirred for 15 minutes; after the stirring, the inert gas is stopped, and after standing for 5 minutes, cast to obtain a Φ300mm aluminum alloy round ingot.

[0040] 2) Perform homogenization annealing treatment on the ingot, homogenization heat treatment system: 400°C / 5h+480°C / 18h, and then cut to length to remove surface defe...

Embodiment 3

[0045] The mass percentage of the aluminum alloy welding material in this example is Mg: 6.5%, Mn: 0.5%, Zn: 0.4%, Ti: 0.05%, Sc: 0.4%, Zr: 0.1%, Fe≤0.2%, Si≤0.15% , the balance being Al.

[0046] The preparation of this welding material comprises the following steps:

[0047] 1) Melt the prepared raw materials in the vacuum melting equipment, vacuumize to 5Pa and start to heat up and melt. After the temperature in the melting furnace rises to 500°C, fill the vacuum furnace with inert gas to a vacuum value of 1200Pa; continue to heat up to 900°C After the alloy is completely melted, an inert gas is introduced into the bottom of the melt, and mechanically stirred for 10 minutes; after the stirring, the inert gas is stopped, and after standing for 10 minutes, cast to obtain a Φ300mm aluminum alloy round ingot.

[0048] 2) Perform homogenization annealing treatment on the ingot, homogenization heat treatment system: 400°C / 3h+480°C / 15h, and then cut to length to remove surface de...

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
tensile strengthaaaaaaaaaa
tensile strengthaaaaaaaaaa
elongationaaaaaaaaaa
Login to View More

Abstract

The invention discloses a method for preparing an aluminum alloy welding material, which is characterized in that: the welding material is composed of Mg: 4.5-7.5%, Mn: 0.1-1%, Zn: 0.2-1.2%, Ti: 0.01- 0.12%, Sc: 0.02-0.6%, Zr: 0.02-0.35%, Fe≤0.2%, Si≤0.15%, and the balance is Al; the preparation of the welding consumables includes the following steps: 1) Obtain the aluminum alloy circular casting by melting and casting Ingot, ingot specification Φ100~Φ400mm. The invention utilizes the continuous extrusion method to continuously extrude the Φ9.0-Φ9.5mm wire billet to Φ3.0-Φ3.5mm at one time, without the need for multi-pass drawing and intermediate annealing, and there is no problem of broken wires, continuous Extrusion can greatly simplify the production process of welding consumables, shorten the production cycle, increase the rate of finished products, and reduce the processing cost of welding consumables. Using continuous extrusion, the extrusion ratio of a single pass is increased, so that the welding material can obtain finer grains and the properties of the material are more uniform.

Description

technical field [0001] The invention belongs to the field of alloy materials, and in particular relates to a preparation method of aluminum alloy welding materials. Background technique [0002] At present, the industrial production of domestic mature aluminum alloy welding wire basically adopts the method of casting-extrusion-drawing. With the development of welding material processing technology, continuous casting and rolling method and horizontal continuous casting and drawing method are also applied to the field of welding material preparation and processing. But it is still difficult to replace extrusion and drawing technology. The casting-extrusion-drawing method for preparing aluminum alloy welding consumables has mature technology and stable product quality, and is widely used in the production of aluminum alloy welding consumables. Aluminum alloy extrusion can obtain more intense and uniform three-dimensional stress than rolling and forging. The coarse and brittle...

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): C22C21/06C22C21/08C22C1/02C22F1/047B23K35/28B23K35/02
CPCC22C21/06C22C21/08C22F1/047C22C1/026B23K35/288B23K35/0227
Inventor 周古昕郎玉婧王生毛华杜秀征李金宝乔丽韩峰
Owner CHINA WEAPON SCI ACADEMY NINGBO BRANCH
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