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Environment friendly AC-DC alkaline low-hydrogen welding rod

An AC-DC dual-purpose, low-hydrogen electrode technology, used in welding equipment, welding media, welding/cutting media/materials, etc., can solve problems such as environmental pollution, reduce spatter, increase melting speed, and improve the effect of transition shape

Inactive Publication Date: 2014-02-26
HARBIN UNIV OF SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the welding operation, a certain amount of harmful gas will be produced, which will be released into the air and pollute the environment.

Method used

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  • Environment friendly AC-DC alkaline low-hydrogen welding rod
  • Environment friendly AC-DC alkaline low-hydrogen welding rod
  • Environment friendly AC-DC alkaline low-hydrogen welding rod

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0174] Environmentally friendly AC and DC dual-purpose alkaline low-hydrogen electrode, its composition includes: coating, welding core. The composition of the coating includes: marble, fluorite, iron powder, barium carbonate, artificial rutile, feldspar, medium carbon ferromanganese, ferro-titanium, atomized ferrosilicon, synthetic mica, titanium dioxide, soda ash, and its parts by weight The numbers are: 24 parts of marble, 21 parts of fluorite, 4 parts of iron powder, 3 parts of barium carbonate, 2 parts of artificial rutile, 1 part of feldspar, 5 parts of medium carbon ferromanganese, 5 parts of titanium iron, and No. 45 atomized ferrosilicon 4 parts, synthetic mica 1 part, titanium dioxide 1 part, soda ash 0.5 part, using welding core H08A, made into environmentally friendly AC / DC dual-purpose alkaline low hydrogen electrode.

Embodiment 2

[0176] Environmentally friendly AC and DC dual-purpose alkaline low-hydrogen electrode, its composition includes: coating, welding core. The composition of the coating includes: marble, fluorite, iron powder, barium carbonate, artificial rutile, feldspar, medium carbon ferromanganese, ferro-titanium, atomized ferrosilicon, synthetic mica, titanium dioxide, soda ash, and its parts by weight The numbers are: 34 parts of marble, 32 parts of fluorite, 16 parts of iron powder, 10 parts of barium carbonate, 7 parts of artificial rutile, 4 parts of feldspar, 9 parts of medium carbon ferromanganese, 12 parts of titanium iron, and No. 45 atomized ferrosilicon 7 parts, synthetic mica 2 parts, titanium dioxide 3 parts, soda ash 1.5 parts, using welding core H08A, made into environmentally friendly AC and DC dual-purpose alkaline low-hydrogen electrode.

Embodiment 3

[0178] Environmentally friendly AC and DC dual-purpose alkaline low-hydrogen electrode, its composition includes: coating, welding core. The composition of the coating includes: marble, fluorite, iron powder, barium carbonate, artificial rutile, feldspar, medium carbon ferromanganese, ferro titanium, atomized ferrosilicon, synthetic mica, titanium dioxide, and soda ash. Use uniformly designed computer software to set the limited range of each process performance index under the fully arranged column, and find an excellent skin formula, as shown in Table 5.

[0179] Table 5 An example of the results of the optimized process performance index search formula

[0180]

[0181]

[0182] According to Table 5, the weight parts of the selected electrode coating components are: 30.2 parts of marble, 28.5 parts of fluorite, 4.7 parts of iron powder, 5.7 parts of barium carbonate, 2.6 parts of artificial rutile, 1 part of feldspar, and 5.9 parts of medium carbon ferromanganese , 7.2 parts of...

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Abstract

The invention relates to an environment friendly AC (alternating current)-DC (direct current) alkaline low-hydrogen welding rod. The welding rod can reduce welding dust, and has a good AC-DC welding technology performance, higher welding rod deposition efficiency and corresponding chemical components and good mechanical properties. So, the invention is conductive to saving energy, reducing emission and reducing environment pollution and is beneficial to the people's livelihood. The welding rod comprises a coating and a welding core, wherein the coating comprises 24-34 parts by weight of marble, 21-32 parts by weight of fluorite, 4-16 parts by weight of iron powder, 3-10 parts by weight of barium carbonate, 2-7 parts by weight of synthetic rutile, 1-4 parts by weight of feldspar, 5-9 parts by weight of medium carbon ferromanganese, 5-12 parts by weight of ferrotitanium, 4-7 parts by weight of No.45 atomized ferrosilicon, 1-2 parts by weight of synthetic mica, 1-3 parts by weight of titanium white and 0.5-1.5 parts by weight of sodium carbonate, and the welding core adopts H08A. The invention is used as a welding rod.

Description

Technical field: [0001] The invention relates to an environment-friendly AC-DC dual-purpose alkaline low-hydrogen electrode. Background technique: [0002] Welding technology is widely used in aerospace, shipbuilding, pressure vessels, boilers, petrochemicals, bridges, vehicles, construction, heavy machinery and other fields. It is one of the modern advanced manufacturing methods and plays a pivotal role in the construction of the national economy. Welding has developed from a single processing technology to an industry with a scientific foundation and a wide range of applications. [0003] Since most welding processes have the special property of "generating welded metal and welding materials to melt together" in applications, welding materials will generate and release certain smoke and harmful gases to varying degrees during the welding process. Among them, the manufacturing of welding electrodes is to coat a layer of coating composed of a large amount of minerals, ferroalloy p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K35/365
Inventor 孟工戈储继君栾敬岳李丹谷丰
Owner HARBIN UNIV OF SCI & TECH
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