Environment friendly AC-DC alkaline low-hydrogen welding rod

An AC-DC dual-purpose, low-hydrogen electrode technology, applied in welding equipment, welding media, welding/cutting media/materials, etc., can solve problems such as environmental pollution, and achieve reduced spatter, reduced surface tension, and good process performance. Effect

Inactive Publication Date: 2011-05-25
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] Environment-friendly AC and DC dual-purpose alkaline low-hydrogen electrode, its composition includes: coating, welding core. The composition of the drug skin includes: marble, fluorite, iron powder, barium carbonate, artificial rutile, feldspar, medium-carbon ferromanganese, ferrotitanium, 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 ferro-titanium, and No. 45 atomized ferrosilicon 4 parts, 1 part of synthetic mica, 1 part of titanium dioxide, 0.5 parts of soda ash, using welding core H08A to make an environmentally friendly AC and DC dual-purpose alkaline low-hydrogen electrode.

Embodiment 2

[0176] Environment-friendly AC and DC dual-purpose alkaline low-hydrogen electrode, its composition includes: coating, welding core. The composition of the drug skin includes: marble, fluorite, iron powder, barium carbonate, artificial rutile, feldspar, medium-carbon ferromanganese, ferrotitanium, 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 ferro-titanium, No. 45 atomized ferrosilicon 7 parts, 2 parts of synthetic mica, 3 parts of titanium dioxide, 1.5 parts of soda ash, and use welding core H08A to make an environmentally friendly AC and DC dual-purpose alkaline low-hydrogen electrode.

Embodiment 3

[0178] Environment-friendly AC and DC dual-purpose alkaline low-hydrogen electrode, its composition includes: coating, welding core. The composition of the drug skin includes: marble, fluorite, iron powder, barium carbonate, artificial rutile, feldspar, medium-carbon ferromanganese, ferrotitanium, 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 column of full arrangement, and find out the excellent drug skin formula, as shown in Table 5.

[0179] Table 5 Example of search formula results in full array of optimized process performance indexes

[0180]

[0181]

[0182] According to Table 5, the parts by weight of the electrode coating components are selected as follows: 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 me...

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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 and DC dual-purpose alkaline low-hydrogen welding rod. Background technique: [0002] Welding technology is widely used in aerospace, ships, pressure vessels, boilers, petrochemicals, bridges, vehicles, construction, heavy machinery and other fields. It is one of the advanced manufacturing methods in modern times and occupies a pivotal position in national economic construction. Welding has developed from a single processing technology into an industry with a scientific basis and a wide range of applications. [0003] Since most welding processes have the special property of "generating joint melting of the metal to be welded and the welding material" in the application, the welding materials will produce and release certain smoke and harmful gases to varying degrees during the welding process. Among them, the welding electrode is manufactured by coating a layer of drug skin composed of a large amou...

Claims

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Application Information

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Patent Type & Authority Applications(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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