CN101450431B - Coated electrode for anti-sulphur dew point corrosion steel - Google Patents
Coated electrode for anti-sulphur dew point corrosion steel Download PDFInfo
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- CN101450431B CN101450431B CN2007101718495A CN200710171849A CN101450431B CN 101450431 B CN101450431 B CN 101450431B CN 2007101718495 A CN2007101718495 A CN 2007101718495A CN 200710171849 A CN200710171849 A CN 200710171849A CN 101450431 B CN101450431 B CN 101450431B
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Abstract
The invention relates to a welding rod material for sulfur resisting dew point corrosion steel, in particular to an electrode covering for sulfur resisting dew point corrosion steel. The electrode covering mainly comprises the following components by weight percentage: 30 to 40 percent of CaO, 20 to 30 percent of CaF2, 10 to 20 percent of SiO2, 5 to 15 percent of TiO2, and 10 to 15 percent of iron alloy; and the powder of the components is evenly mixed to prepare the electrode covering. With the adoption of the technical solution, the electrode covering completely solves the welding material problems of the 10CrMnCu sulfur resisting dew point corrosion steel; the sulfur resisting dew point property of the weld metal is similar to that of base metal; the mechanical property of a welding joint of deposited metal is matched with the base metal; the weld metal has excellent cracking resistance; and the welding rod has good welding process properties.
Description
Technical field
The present invention relates to the welding rod material of anti-sulphur dew point corrosion steel, particularly a kind of electrode coating that is used for anti-sulphur dew point corrosion steel.
Background technology
Steel such as 10CrMnCu are anti-sulphur dew point corrosion steel grades, need the special welding material that matches, the present domestic manufacturer production that do not have.Should satisfy with the special welding material of 10CrMnCu coupling: the anti-sulphur dew point performance of weld metal is suitable with parent metal, the mechanical property and the parent metal of deposited metal and welding point are complementary, weld metal has excellent cracking resistance, and welding rod has good welding technological properties.
Summary of the invention
The objective of the invention is to solve the welding material problem of the anti-sulphur dew point corrosion of 10CrMnCu steel grade, welding material a kind of and the anti-sulphur dew point corrosion of 10CrMnCu steel grade coupling is provided.
Realize that the object of the invention technical scheme is: a kind of electrode coating that is used for anti-sulphur dew point corrosion steel, basic composition is of this electrode coating:
CaO：30～40％，
CaF2：20～30％，
SiO2：10～20％，
TiO2：5～15％，
Ferroalloy: 10～15%,
Above percentage is weight percentage, and the material powder of said components is mixed make electrode coating.
Preferably, described ferroalloy contains Cr, Mn, Cu element.
Owing to adopted above-mentioned technical solution, solved the welding material problem of the anti-sulphur dew point corrosion of 10CrMnCu steel grade fully, and the anti-sulphur dew point performance of weld metal is suitable with parent metal, the mechanical property and the parent metal of deposited metal and welding point are complementary, weld metal has excellent cracking resistance, and welding rod has good welding technological properties.
The specific embodiment
The present invention is described in further detail below in conjunction with embodiment.
A kind of electrode coating that is used for anti-sulphur dew point corrosion steel, basic composition is of this electrode coating:
CaO：30～40％，
CaF2：20～30％，
SiO2：10～20％，
TiO2：5～15％，
Ferroalloy: 10～15%,
Above percentage is weight percentage, and the material powder of said components is mixed make electrode coating.
Further, described ferroalloy contains Cr, Mn, Cu element.
Embodiment 1
A kind of electrode coating that is used for anti-sulphur dew point corrosion steel, basic composition is of this electrode coating:
CaO：30％，
CaF2：30％，
SiO2：20％，
TiO2：10％，
Ferroalloy: 10%,
Above percentage is weight percentage, and the material powder of said components is mixed make electrode coating.
Embodiment 2
A kind of electrode coating that is used for anti-sulphur dew point corrosion steel, basic composition is of this electrode coating:
CaO：35％，
CaF2：20％，
SiO2：15％，
TiO2：15％，
Ferroalloy: 15%,
Above percentage is weight percentage, and the material powder of said components is mixed make electrode coating.
Embodiment 3
A kind of electrode coating that is used for anti-sulphur dew point corrosion steel, basic composition is of this electrode coating:
CaO：40％，
CaF2：25％，
SiO2：10％，
TiO2：10％，
Ferroalloy: 15%,
Above percentage is weight percentage, and the material powder of said components is mixed make electrode coating.
Embodiment 4
A kind of electrode coating that is used for anti-sulphur dew point corrosion steel, basic composition is of this electrode coating:
CaO：40％，
CaF2：30％，
SiO2：12.5％，
TiO2：5％，
The ferroalloy that contains Cr, Mn, Cu element: 12.5%,
Above percentage is weight percentage, and the material powder of said components is mixed make electrode coating.
Embodiment 5
A kind of electrode coating that is used for anti-sulphur dew point corrosion steel, basic composition is of this electrode coating:
CaO：30％，
CaF2：30％，
SiO2：20％，
TiO2：10％，
The ferroalloy that contains Cr, Mn, Cu element: 10%,
Above percentage is weight percentage, and the material powder of said components is mixed make electrode coating.
Embodiment 6
A kind of electrode coating that is used for anti-sulphur dew point corrosion steel, basic composition is of this electrode coating:
CaO：35％，
CaF2：20％，
SiO2：15％，
TiO2：15％，
The ferroalloy that contains Cr, Mn, Cu element: 15%,
Above percentage is weight percentage, and the material powder of said components is mixed make electrode coating.
Embodiment 7
A kind of electrode coating that is used for anti-sulphur dew point corrosion steel, basic composition is of this electrode coating:
CaO：40％，
CaF2：25％，
SiO2：10％，
TiO2：10％，
The ferroalloy that contains Cr, Mn, Cu element: 15%,
Above percentage is weight percentage, and the material powder of said components is mixed make electrode coating.
Embodiment 8
A kind of low hydrogen type J427CrCu welding rod, in coating component, suitably add elements such as Cr, Mn, Cu, the one, for guaranteeing deposited metal satisfied comprehensive mechanical property is arranged, the 2nd, strengthen the ability of the anti-sulphur dew point of weld metal, and will guarantee that weld metal has good crack resistance.
SH.J427CrCu welding rod technical indicator:
1) deposited metal composition (%)
| C | Si | Mn | Cr | Cu | P | S | |
| The 10CrMnCu steel | ≤ 0.13 | 0.20~0 .80 | ≤ 1.40 | 1.00~ 1.50 | 0.25~ 0.35 | ≤ 0.025 | 0.015 ~0.03 0 |
| SH.J427Cr Cu | 0.06 | 0.36 | 0.56 | 0.88 | 0.30 | 0.012 | 0.009 |
2) deposited metal mechanical property:
| R p0.2 (Mpa) | R m (Mpa) | A (％) | KV(-20℃) (J) | |
| The 10CrMnCu steel | - | 400～510 | 19~22 | - |
| SH.J427CrCu | 375 | 520 | 31 | 140 |
*The intensity of deposited metal is higher than base aluminum, its plasticity and matrix close.
3) welding joint mechanical property:
| The trade mark | Tension | Clod wash (D=3a, 180 °) | |
| SH.J427CrCu | Fracture position | Positive | Reverse side |
| Matrix | Intact | Intact | |
Welding point breaks at the matrix place, illustrates that weld seam is stronger than matrix; Do not find crackle during clod wash, crooked plasticity is satisfied.
Above embodiment is only for the usefulness that the present invention is described, but not limitation of the present invention, person skilled in the relevant technique, under the situation that does not break away from the spirit and scope of the present invention, can also make various conversion or modification, therefore all technical schemes that are equal to also should belong to category of the present invention, should be limited by each claim.
Claims (1)
1. electrode coating that is used for anti-sulphur dew point corrosion steel is characterized in that: basic composition is of this electrode coating:
CaO：30～40％，
CaF2：20～30％，
SiO2：10～20％，
TiO2：5～15％，
Ferroalloy: 10～15%,
Above percentage is weight percentage, and the material powder of said components is mixed make electrode coating;
Described ferroalloy contains Cr, Mn, Cu element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101718495A CN101450431B (en) | 2007-12-06 | 2007-12-06 | Coated electrode for anti-sulphur dew point corrosion steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101718495A CN101450431B (en) | 2007-12-06 | 2007-12-06 | Coated electrode for anti-sulphur dew point corrosion steel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101450431A CN101450431A (en) | 2009-06-10 |
| CN101450431B true CN101450431B (en) | 2010-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101718495A Active CN101450431B (en) | 2007-12-06 | 2007-12-06 | Coated electrode for anti-sulphur dew point corrosion steel |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105689922A (en) * | 2014-11-28 | 2016-06-22 | 成都创客之家科技有限公司 | Corrosion-resisting welding rod |
| CN104858568A (en) * | 2015-03-31 | 2015-08-26 | 上海焊接器材有限公司 | Gas shielded flux cored welding wire resistant to sulfuric acid dew point corrosion, and preparation method thereof |
| CN113913647A (en) * | 2021-09-18 | 2022-01-11 | 温州瑞银不锈钢制造有限公司 | Low-carbon nickel-chromium-molybdenum-niobium alloy material, welding rod and preparation method of welding rod |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1415452A (en) * | 2002-10-11 | 2003-05-07 | 束润涛 | Welding rod utilized for the steel bearing the hydrogen sulfide decays |
| CN1846927A (en) * | 2005-04-05 | 2006-10-18 | 林肯环球公司 | Modified flux system in cored electrode |
-
2007
- 2007-12-06 CN CN2007101718495A patent/CN101450431B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1415452A (en) * | 2002-10-11 | 2003-05-07 | 束润涛 | Welding rod utilized for the steel bearing the hydrogen sulfide decays |
| CN1846927A (en) * | 2005-04-05 | 2006-10-18 | 林肯环球公司 | Modified flux system in cored electrode |
Non-Patent Citations (2)
| Title |
|---|
| JP昭5597898A 1980.07.25 |
| 于镇洋.10CrMnCu抗硫酸露点腐蚀钢的焊接.焊接研究与生产.1994,3(1), * |
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| CN101450431A (en) | 2009-06-10 |
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