CN102233498A - CO2 gas protection flux-cored wire for matching welding of low-alloy steel with strength of 490 MPa - Google Patents
CO2 gas protection flux-cored wire for matching welding of low-alloy steel with strength of 490 MPa Download PDFInfo
- Publication number
- CN102233498A CN102233498A CN2010101573125A CN201010157312A CN102233498A CN 102233498 A CN102233498 A CN 102233498A CN 2010101573125 A CN2010101573125 A CN 2010101573125A CN 201010157312 A CN201010157312 A CN 201010157312A CN 102233498 A CN102233498 A CN 102233498A
- Authority
- CN
- China
- Prior art keywords
- flux
- cored wire
- welding
- gas protection
- low
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Nonmetallic Welding Materials (AREA)
Abstract
The invention relates to a CO2 gas protection flux-cored wire for matching welding of low-alloy steel with the strength of 490 MPa. The CO2 gas protection flux-cored wire is made of a steel belt and flux-cored powder, wherein the flux-cored powder comprises the following components in parts by weight: 4-10 parts of sintering powder, 0.1-0.7 part of Fe3O4, 0-1.0 part of TiO2, 0.1-0.5 part of Al, 0-0.4 part of Ti, 0.1-0.5 part of Si, 2.0-2.5 parts of Mn and 1.0-2.0 parts of Fe. The CO2 gas protection flux-cored wire has the beneficial effects that the mechanical property of the weld metal of the produced flux-cored wire can meet the technical index requirements; the moisture absorption capability of the produced flux-cored wire is greatly improved, so that the pore resistance of the flux-cored wire is enhanced, and i.e., no pore is generated in welding after the unpacked CO2 gas protection flux-cored wire is placed for seven days under the environment with 80% relative moisture.
Description
Technical field
The present invention relates to welding material, relate in particular to the supporting welding CO of a kind of intensity 490MPa low-alloy steel
2The gas shield flux-cored wire
Background technology
In recent years, in the shipbuilding field, the CO of the full position of wide popularization and application titania-type flux-cored welding wire
2Automatic and the semi-automatic welding of gas shield.The application of flux-cored wire makes production efficiency improve greatly, and welding deformation greatly reduces, and makes the duration shorten, and production cost reduces.Yet in energy construction particularly in the power plant construction engineering, CO
2The full position of gas shield titania-type flux-cored welding wire does not still satisfy its specification requirement, mainly shows: 1) mechanical property and power station do not match with the specification requirement of low-alloy steel welding point: as CO
2The deposited metal intensity of the full position of gas shield titania-type flux-cored welding wire is commonly 3y rank peculiar to vessel, and promptly tensile strength 〉=490MPa, summer of-20 ℃ are than impact absorbing energy 〉=47J.The power station then requires-30 ℃ summer of its weld seam than impact absorbing energy 〉=27J (toughness does not match) with the low-alloy steel (as the 16Mn steel) of tensile strength 〉=490MPa; The power station then requires-20 ℃ summer of its weld seam than impact absorbing energy 〉=47J (intensity does not match) with the low-alloy steel (as 6062 steel) of tensile strength 〉=590MPa; 2) anti-gas porosity is relatively poor etc.
Summary of the invention
The purpose of this invention is to provide the supporting welding CO of a kind of intensity 490MPa low-alloy steel
2The gas shield flux-cored wire can be at CO
2Weld under the condition of gas shield, satisfy power plant construction with the deposited metal mechanical property of the low-alloy steel of intensity rank 490MPa welding, have stronger specification requirements such as anti-pore performance.
The objective of the invention is to be achieved through the following technical solutions:
The supporting welding CO of a kind of intensity 490MPa low-alloy steel
2The gas shield flux-cored wire is made by steel band and medicine core powder, and medicine core powder comprises following compositions in portion by weight: agglomerated powder 4-10, Fe
3O
40.1-0.7, TiO
20-1.0, Al 0.1-0.5, Ti 0-0.4, Si 0.1-0.5, Mn 2.0-2.5, Fe 1.0-2.0.
Described agglomerated powder is made by the raw material of following parts by weight: TiO
230-80, SiO
28-15, MgO 1-7, fluoride 1-7, ZrO
21-7, Al
2O
32-10, K
2O+Na
2O 0~5.Fully puddle after joining powder by above-mentioned prescription, then through 900 ℃ of high temperature dewater, sintering; Be crushed to behind the certain granules degree compound behind the sintering standby.
Described fluoride is by MgF
2+ NaF forms, wherein MgF
2Weight≤40%.
In above-mentioned medicine core powder (containing agglomerated powder) constituent, the effect of each component is as follows: TiO
2Play slag making and stabilising arc; K
2O, Na
2O mainly plays stabilising arc; The main effect of fluoride is the anti-gas porosity that improves welding wire; MgO keeps the certain basicity of slag with fluoride, so that weld metal obtains enough toughness; SiO
2, Al
2O
3, ZrO
2Deng effect be slag making and the performance effect that improves slag; The effect of Al, Ti, Si is strong deoxidation, with Fe
3O
4Deng reaction, bring addition reaction heat to improve the physical property that arc performance and product are improved slag thus; The main effect of Mn is deoxidation and alloying weld metal; The effect of powder sintering is the ability of removing wherein each class moisture and improving its anti-moisture absorption
Beneficial effect of the present invention is: the deposited metal mechanical property of the flux-cored wire of production reaches technical requirement (CO2 gas shield); Anti-moisture absorption ability significantly improves, thereby has strengthened the anti-pore ability of welding wire, show out bag after, the hole holds one's breath in welding (CO2 gas shield) after placing 7 days under the environment of relative humidity 80%.
The specific embodiment
The supporting welding CO of the described intensity 490MPa low-alloy steel of the embodiment of the invention
2The gas shield flux-cored wire is made by steel band and medicine core powder, and medicine core powder comprises following compositions in portion by weight: agglomerated powder 4-10, Fe
3O
40.1-0.7, TiO
20-1.0, Al 0.1-0.5, Ti 0-0.4, Si 0.1-0.5, Mn 2.0-2.5, Fe 1.0-2.0.Described agglomerated powder is made by the raw material of following parts by weight: TiO
230-80, SiO
28-15, MgO 1-7, fluoride 1-7, ZrO
21-7, Al
2O
32-10, K
2O+Na
2O 0~5.Described fluoride is by MgF
2+ NaF forms, wherein MgF
2Weight≤40%.
According to the composition of flux-cored wire medicine core powder of the present invention, making three batches of trades mark is the NY490 flux-cored wire, and the composition of the three batches of steel bands that welding wire adopted and medicine core powder is as shown in table 1.The three batches of mother metals that welding wire welded and welding process parameter are as shown in table 2.Mechanics Performance Testing and pore detection have been carried out to the deposited metal of gained in the welding back, and test result is as shown in table 3.
Table 1 embodiment NY490 flux-cored wire steel band composition and medicine core composition (weight, %)
Table 2 embodiment NY490 flux-cored wire welding mother metal and welding condition
Table 3 embodiment NY490 flux-cored wire deposited metal mechanical property and pore detect
-30 ℃ of Charpy-V impact powers (Akv, J ,-30 ℃) are the mean value of three samples.
Claims (2)
1. supporting welding CO of intensity 490MPa low-alloy steel
2The gas shield flux-cored wire is made by steel band and medicine core powder, it is characterized in that: described medicine core powder comprises following compositions in portion by weight: agglomerated powder 4-10, Fe
3O
40.1-0.7, TiO
20-1.0, Al 0.1-0.5, Ti 0-0.4, Si 0.1-0.5, Mn 2.0-2.5, Fe 1.0-2.0; Wherein said agglomerated powder is made by the raw material of following parts by weight: TiO
230-80, SiO
28-15, MgO 1-7, fluoride 1-7, ZrO
21-7, Al
2O
32-10, K
2O+Na
2O 0~5.
2. the supporting welding CO of intensity 490MPa low-alloy steel according to claim 1
2The gas shielded arc welding flux-cored wire is characterized in that: described fluoride comprises MgF
2Form with NaF, wherein MgF
2Weight≤40%.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2010101573125A CN102233498A (en) | 2010-04-21 | 2010-04-21 | CO2 gas protection flux-cored wire for matching welding of low-alloy steel with strength of 490 MPa |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2010101573125A CN102233498A (en) | 2010-04-21 | 2010-04-21 | CO2 gas protection flux-cored wire for matching welding of low-alloy steel with strength of 490 MPa |
Publications (1)
Publication Number | Publication Date |
---|---|
CN102233498A true CN102233498A (en) | 2011-11-09 |
Family
ID=44884878
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2010101573125A Pending CN102233498A (en) | 2010-04-21 | 2010-04-21 | CO2 gas protection flux-cored wire for matching welding of low-alloy steel with strength of 490 MPa |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN102233498A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102233497A (en) * | 2010-04-21 | 2011-11-09 | 广东福维德焊接股份有限公司 | CO2 gas shielded flux cored wire for supporting welding of low alloy steel with strength of 590 MPa |
EP2855081A1 (en) * | 2012-05-24 | 2015-04-08 | Hobart Brothers Company | Systems and methods for low-manganese welding wire |
CN106271196A (en) * | 2015-05-26 | 2017-01-04 | 江苏立新焊接材料有限公司 | A kind of Naval Architecture and Ocean Engineering steel alloy supporting welding CO2gas-shielded flux-cored wire |
CN106514036A (en) * | 2015-09-14 | 2017-03-22 | 江苏立新焊接材料有限公司 | Flux-core welding wire for shipping and ocean engineering alloy steel matching welding and preparation method |
CN106514059A (en) * | 2015-09-14 | 2017-03-22 | 江苏立新焊接材料有限公司 | Preparation method of welding wire for shipping and ocean engineering alloy steel supporting welding |
CN106563890A (en) * | 2015-10-10 | 2017-04-19 | 丹阳市华龙特钢有限公司 | Low-cost high-performance nickel based special welding wire |
CN110773905A (en) * | 2019-10-17 | 2020-02-11 | 北京奥邦新材料有限公司 | Steel welding flux-cored wire for high heat input welding, preparation method and welding method thereof |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57146494A (en) * | 1981-03-04 | 1982-09-09 | Kobe Steel Ltd | Covered arc welding rod |
JPS59141397A (en) * | 1983-01-31 | 1984-08-14 | Sumikin Yousetsubou Kk | Composite wire for nongas welding |
KR20010061851A (en) * | 1999-12-29 | 2001-07-07 | 이봉주 | Metal cored wire for high speed gas shield arc pillet welding with Twin-tandem welding method |
CN1068270C (en) * | 1999-01-12 | 2001-07-11 | 冶金工业部钢铁研究总院 | Gas shield cored electrode for high ductility all position welding |
CN1775452A (en) * | 2005-11-24 | 2006-05-24 | 武汉铁锚焊接材料股份有限公司 | Carbon steel cored solder wire for gas-shielded arc welding |
CN1966199A (en) * | 2005-11-17 | 2007-05-23 | 基斯韦尔株式会社 | Flux cored wire for gas protection electrical arc welding |
CN101041215A (en) * | 2007-04-27 | 2007-09-26 | 北京工业大学 | High-alloy martensite type refractory steel air-protecting flux-cored wire |
CN101104232A (en) * | 2007-08-09 | 2008-01-16 | 武汉铁锚焊接材料股份有限公司 | Low alloy steel flux-cored welding wire for carbon dioxide gas protection welding |
CN102233497A (en) * | 2010-04-21 | 2011-11-09 | 广东福维德焊接股份有限公司 | CO2 gas shielded flux cored wire for supporting welding of low alloy steel with strength of 590 MPa |
-
2010
- 2010-04-21 CN CN2010101573125A patent/CN102233498A/en active Pending
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57146494A (en) * | 1981-03-04 | 1982-09-09 | Kobe Steel Ltd | Covered arc welding rod |
JPS59141397A (en) * | 1983-01-31 | 1984-08-14 | Sumikin Yousetsubou Kk | Composite wire for nongas welding |
CN1068270C (en) * | 1999-01-12 | 2001-07-11 | 冶金工业部钢铁研究总院 | Gas shield cored electrode for high ductility all position welding |
KR20010061851A (en) * | 1999-12-29 | 2001-07-07 | 이봉주 | Metal cored wire for high speed gas shield arc pillet welding with Twin-tandem welding method |
CN1966199A (en) * | 2005-11-17 | 2007-05-23 | 基斯韦尔株式会社 | Flux cored wire for gas protection electrical arc welding |
CN1775452A (en) * | 2005-11-24 | 2006-05-24 | 武汉铁锚焊接材料股份有限公司 | Carbon steel cored solder wire for gas-shielded arc welding |
CN101041215A (en) * | 2007-04-27 | 2007-09-26 | 北京工业大学 | High-alloy martensite type refractory steel air-protecting flux-cored wire |
CN101104232A (en) * | 2007-08-09 | 2008-01-16 | 武汉铁锚焊接材料股份有限公司 | Low alloy steel flux-cored welding wire for carbon dioxide gas protection welding |
CN102233497A (en) * | 2010-04-21 | 2011-11-09 | 广东福维德焊接股份有限公司 | CO2 gas shielded flux cored wire for supporting welding of low alloy steel with strength of 590 MPa |
Non-Patent Citations (1)
Title |
---|
桂亦斌等: "AL对药芯焊丝CO2气体保护焊熔敷金属成分的作用", 《焊接学报》 * |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102233497A (en) * | 2010-04-21 | 2011-11-09 | 广东福维德焊接股份有限公司 | CO2 gas shielded flux cored wire for supporting welding of low alloy steel with strength of 590 MPa |
EP2855081A1 (en) * | 2012-05-24 | 2015-04-08 | Hobart Brothers Company | Systems and methods for low-manganese welding wire |
EP2855081B1 (en) * | 2012-05-24 | 2022-09-21 | Hobart Brothers Company | Flux-cored tubular welding wire |
CN106271196A (en) * | 2015-05-26 | 2017-01-04 | 江苏立新焊接材料有限公司 | A kind of Naval Architecture and Ocean Engineering steel alloy supporting welding CO2gas-shielded flux-cored wire |
CN106514036A (en) * | 2015-09-14 | 2017-03-22 | 江苏立新焊接材料有限公司 | Flux-core welding wire for shipping and ocean engineering alloy steel matching welding and preparation method |
CN106514059A (en) * | 2015-09-14 | 2017-03-22 | 江苏立新焊接材料有限公司 | Preparation method of welding wire for shipping and ocean engineering alloy steel supporting welding |
CN106563890A (en) * | 2015-10-10 | 2017-04-19 | 丹阳市华龙特钢有限公司 | Low-cost high-performance nickel based special welding wire |
CN110773905A (en) * | 2019-10-17 | 2020-02-11 | 北京奥邦新材料有限公司 | Steel welding flux-cored wire for high heat input welding, preparation method and welding method thereof |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN102233497A (en) | CO2 gas shielded flux cored wire for supporting welding of low alloy steel with strength of 590 MPa | |
CN102233498A (en) | CO2 gas protection flux-cored wire for matching welding of low-alloy steel with strength of 490 MPa | |
CN103056549B (en) | Alkaline CO2 gas protection dilute alloy heat resistant steel flux-cored wire | |
CN104400250B (en) | A kind of flux-cored | |
CN105921912B (en) | 1Cr12Ni2W1MoV stainless steel self-protection flux-cored wire and preparation method thereof | |
CN103008918A (en) | Submerged-arc welding flux for high-strength steel with strength not smaller than 780MPa, manufacture method and welding wire | |
CN103008913A (en) | Corrosion-resistance stainless steel electric welding rod used for nuclear power and production method thereof | |
CN103273222B (en) | High-strength high-tenacity sintered flux for afterheat-free welding | |
CN101463423B (en) | Composite spraying agent for iron sintering ore | |
CN102909492A (en) | High-welding-speed sintered flux for submerged-arc welding of X100 pipeline steel and preparation method thereof | |
CN103495817B (en) | C0 2or 80Ar+C0 2gas-shielded basic weldering flux-cored wire | |
CN107322181A (en) | Nonmagnetic steel 20Mn23Al self-protection flux-cored wires and preparation method thereof | |
CN105234590A (en) | SA-508Gr.3Cl.2 steel submerged arc welding agent for nuclear power engineering and special welding wire | |
JP2012161827A (en) | Submerge arc welding method | |
CN104128715B (en) | A kind of gas protecting welding wire for midium-carbon steel containment | |
CN106624460A (en) | Low-temperature steel saw sintered flux used for ships | |
CN101229610A (en) | High strength, tenacity, and high welding speed hidden arc welding material for high class pipeline steel | |
CN105195919A (en) | Steel for gas shielded welding wire for high-strength weathering steel and welding wire | |
CN101559546B (en) | Full-position high-toughness self-protection flux-cored welding wire | |
CN103737192A (en) | Soldering flux for submerged arc horizontal position welding of steel containment, preparation method and welding method | |
CN108637527B (en) | Submerged arc automatic welding and sintering welding flux for 1000MPa high-strength steel and preparation method | |
CN101549442A (en) | High-toughness metal core gas shielded welding wire and manufacturing method thereof | |
CN104708227B (en) | Self-protection flux-cored wire for low-temperature steel 1Ni9 and preparing method for self-protection flux-cored wire | |
CN107442966A (en) | One kind is applied to high-strength steel under-water welding self-protection flux-cored wire | |
CN104816106A (en) | Special submerged arc horizontal welding flux for pressure-bearing storage tank |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111109 |