CN101234459A - 80 kilogram-scale low welding crack sensibility high-strength steel plate special-purpose welding stick - Google Patents
80 kilogram-scale low welding crack sensibility high-strength steel plate special-purpose welding stick Download PDFInfo
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- CN101234459A CN101234459A CNA2008100839020A CN200810083902A CN101234459A CN 101234459 A CN101234459 A CN 101234459A CN A2008100839020 A CNA2008100839020 A CN A2008100839020A CN 200810083902 A CN200810083902 A CN 200810083902A CN 101234459 A CN101234459 A CN 101234459A
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Abstract
The invention belongs to a technical field of welding wire and discloses a special welding wire for 80kg grade of low welding crack-sensitive high-strength steel plates. The technical scheme is that the welding wire comprises the elements with the following weight percentages: 0.06 to 0.12 of carbon, 0.40 to 1.00 of silicon, 1.40 to 2.10 of manganese, 0.02 to 0.20 of titanium, 0.001 to 0.01 of boron, 0.05 to 1.50 of nickel, less than 1.20 of chromium, less than 0.10 of niobium, less than 0.10 of vanadium, less than 0.10 of sulfur, less than 0.10 of phosphorus and the rest of iron and inevitable impurities. According to the experience, when the welding wire is not preheated and the working environment temperature of the welded joint of the welding crack-sensitive high-strength steel plates is between minus 20 DEG C and minus 50 DEG C, cold crack on the welding seam can be avoided.
Description
Technical field
The invention belongs to the welding wire technology field, relate in particular to a kind of 80 kilogram-scale low welding crack sensibility high-strength steel plate special-purpose welding sticks.
Background technology
Low welding crack sensibility high-strength steel plate is a kind of steel plate that can not weld crackle under the situation of not preheating or low preheating, the main feature of this class steel plate is, have low P cm value, low-carbon-equivalent, good weldability, have the characteristics of low C content, high cleanliness, high strength and high tenacity simultaneously.Because this kind steel are a kind of novel steel grades, be not specifically designed to the special welding wire of this steel grade welding so far, more be not used in the special welding wire of welding under the lower temperature.When welding this steel grade, adopt common high strength welding wire to make substitute more.In order to improve weld strength, adopt valuable alloy compositions such as in the high strength welding wire, adding a large amount of Ni, Cr, Mo in (as ER76-1, ER83-1) simultaneously or content to substitute welding wire.Utilize this to substitute low welding crack sensibility high-strength steel plate that welding wire welds, because the weld seam alloying element content is too high, thereby cause welding under the too high situation that can not be implemented in not preheating or low preheating of P cm value, low-carbon-equivalent, make this steel plate can not embody its exclusive excellent properties, and therefore improved the production cost of welding wire greatly.Also be not specifically designed between subzero 20 ℃ to subzero 50 ℃ in the environment not only economy, welding performance but also the good special welding wire of welding low welding crack sensibility high-strength steel at present.
Summary of the invention
Purpose of the present invention just provides to be used in specially and welds 80 kilogram-scale low welding crack sensibility high-strength steel plate special-purpose welding sticks between subzero 20 ℃ to subzero 50 ℃ in the temperature environment.
First technical scheme that realizes the object of the invention is:
80 kilogram-scale low welding crack sensibility high-strength steel plate special-purpose welding sticks, basic element by following percentage by weight: carbon C:0.06-0.12, silicon Si:0.40-1.00, manganese Mn:1.40-2.10, titanium Ti:0.02-0.20, boron: 0.001-0.01, nickel: 0.001-1.50, vanadium V≤0.10, sulphur S≤0.10, phosphorus P≤0.10, surplus are that iron and unavoidable impurities thereof constitute.
In addition, constitute the chromium Cr element that contains in the described welding wire less than 1.20%; Constitute the copper that contains in the described welding wire less than 0.50%.
Second technical scheme that realizes the object of the invention is:
80 kilogram-scale low welding crack sensibility high-strength steel plate special-purpose welding sticks, basic element by following percentage by weight: carbon C:0.06-0.12, silicon Si:0.40-1.00, manganese Mn:1.40-2.10, titanium Ti:0.02-0.20, boron: 0.001-0.01, nickel: 0.001-1.50, niobium Nb≤0.10, sulphur S≤0.10, phosphorus P≤0.10, surplus are that iron and unavoidable impurities thereof constitute.
In addition, constitute the chromium Cr element that contains in the described welding wire less than 1.20%; Constitute the copper that contains in the described welding wire less than 0.50%.
The 3rd technical scheme that realizes the object of the invention is:
80 kilogram-scale low welding crack sensibility high-strength steel plate special-purpose welding sticks, basic element by following percentage by weight: carbon C:0.06-0.12, silicon Si:0.40-1.00, manganese Mn:1.40-2.10, titanium Ti:0.02-0.20, boron: 0.001-0.01, nickel: 0.001-1.50, chromium Cr:0.05-1.20, niobium Nb≤0.10, vanadium V≤0.10, sulphur S≤0.10, phosphorus P≤0.10, surplus are that iron and unavoidable impurities thereof constitute.
In addition, constitute the chromium Cr element that contains in the described welding wire less than 1.20%; Constitute the copper that contains in the described welding wire less than 0.50%.
80 kilogram-scale low welding crack sensibility high-strength steel plate special-purpose welding sticks provided by the present invention have the following advantages: one, through experiment, utilize this welding wire to be applicable between subzero 20 ℃ to subzero 50 ℃ welded high-strength structural steel in the temperature environment, therefore, can realize the weld job of high-tensile structural steel under the low temperature environment; Its two, utilize the high-tensile structural steel of this welding wire welding, not only can realize the microalloying of weld seam, therefore the generation that has stoped the weld seam of welding to produce the cold crack phenomenon, and need not preheating during welding has improved welder's operating environment, it is extremely convenient to use; Its three owing in this welding wire, contain an amount of Ti, B or V, make the crystal grain refinement more of weld seam, improved the obdurability of weld seam, the degree of splashing when having reduced welding; Its four owing to constitute in this welding wire for gas shielded arc welding for high-tensile structural steel, do not contain valuable metal molybdenum, production cost per ton reduces more than more than 1000 yuan than common alternative welding wire.
The specific embodiment
First kind is the special welding wire that contains 80 kilogram-scale low welding crack sensibility high-strength steel plates of C, Si, Mn, Ti, B, Ni, Cr and V and copper, and embodiment is:
Embodiment 1
Select for use S and P all to carry out the smelting of welding wire steel less than the steel of 0.10 percetage by weight, its smelting process does not have specific (special) requirements.The Elements C that adds following percentage by weight in the process of smelting: 0.10, Si:0.8, Mn:1.80, Ti:0.10, B:0.001, Ni:0.40, V:0.09, surplus is the iron and the inevitable impurity of the no more than iron composition 0.01 percent of its content thereof.
Embodiment 2
Select for use S and P all to carry out the smelting of welding wire steel less than the steel of 0.025 percetage by weight, its smelting process does not have specific (special) requirements.The Elements C that adds following percentage by weight in the process of smelting: 0.06, Si:1.0, Mn:1.40, Ti:0.02, B:0.008, Ni:0.60, V:0.05, surplus is the iron and the inevitable impurity of the no more than iron composition 0.40 percent of its content thereof.After being drawn into welding wire with coppered welding wire, its copper-plated amount be in the welding wire ferrous components percent 0.5.
Embodiment 3
Select for use S and P all to carry out the smelting of welding wire steel less than the steel of 0.015 percetage by weight, its smelting process does not have specific (special) requirements.The Elements C that adds following percentage by weight in the process of smelting: 0.12, Si:0.4, Mn:2.10, Ti:0.15, B:0.010, Ni:0.20, V:0.01, surplus is the iron and the inevitable impurity of the no more than iron composition 0.10 percent of its content thereof.After being drawn into welding wire with coppered welding wire, its copper-plated amount be in the welding wire ferrous components percent 0.3.
Embodiment 4
Select for use S and P all to carry out the smelting of welding wire steel less than the steel of 0.025 percetage by weight, its smelting process does not have specific (special) requirements.The Elements C that adds following percentage by weight in the process of smelting: 0.08, Si:0.6, Mn:2.10, Ti:0.20, B:0.005, Ni:0.50, Cr:1.10, V:0.01, surplus is the iron and the inevitable impurity of the no more than iron composition 0.30 percent of its content thereof.After being drawn into welding wire with coppered welding wire, its copper-plated amount be in the welding wire ferrous components percent 0.5.
Embodiment 5
Select for use S and P all to carry out the smelting of welding wire steel less than the steel of 0.005 percetage by weight, its smelting process does not have specific (special) requirements.The Elements C that adds following percentage by weight in the process of smelting: 0.05, Si:0.5, Mn:2.00, Ti:0.08, B:0.020, Ni:0.03, Cr:0.05, V:0.01, surplus is the iron and the inevitable impurity of the no more than iron composition 0.10 percent of its content thereof.After being drawn into welding wire with coppered welding wire, its copper-plated amount be in the welding wire ferrous components percent 0.3.
Embodiment 6
Select for use S and P all to carry out the smelting of welding wire steel less than the steel of 0.015 percetage by weight, its smelting process does not have specific (special) requirements.The Elements C that adds following percentage by weight in the process of smelting: 0.10, Si:0.7, Mn:1.50, Ti:0.12, B:0.004, Ni:0.050, Cr:0.80, V:0.02, surplus is the iron and the inevitable impurity of the no more than iron composition 0.30 percent of its content thereof.After being drawn into welding wire with coppered welding wire, its copper-plated amount be in the welding wire ferrous components percent 0.4.
In order further to improve the weld strength of welding wire, in the foregoing description 4,5 and 6, added the chromium Cr element that is not higher than 1.20% content.
Add the nickel element that is not higher than 1.50% content in the above-described embodiments, can make welding wire have certain quenching degree.
Second kind is the special welding wire that contains 80 kilogram-scale low welding crack sensibility high-strength steel plates of C, Si, Mn, Ti, B, Ni, Cr and Nb and copper, and embodiment is:
Embodiment 7
Select for use S and P all to carry out the smelting of welding wire steel less than the steel of 0.10 percetage by weight, its smelting process does not have specific (special) requirements.The Elements C that adds following percentage by weight in the process of smelting: 0.10, Si:0.8, Mn:1.80, Ti:0.10, B:0.001, Ni:0.40, Nb:0.09, surplus is the iron and the inevitable impurity of the no more than iron composition 0.01 percent of its content thereof.
Embodiment 8
Select for use S and P all to carry out the smelting of welding wire steel less than the steel of 0.015 percetage by weight, its smelting process does not have specific (special) requirements.The Elements C that adds following percentage by weight in the process of smelting: 0.10, Si:0.7, Mn:1.50, Ti:0.12, B:0.004, Ni:0.050, Nb:0.02, surplus is the iron and the inevitable impurity of the no more than iron composition 0.30 percent of its content thereof.After being drawn into welding wire with coppered welding wire, its copper-plated amount be in the welding wire ferrous components percent 0.4.
Embodiment 9
Select for use S and P all to carry out the smelting of welding wire steel less than the steel of 0.005 percetage by weight, its smelting process does not have specific (special) requirements.The Elements C that adds following percentage by weight in the process of smelting: 0.05, Si:0.5, Mn:2.00, Ti:0.08, B:0.020, Ni:0.07, Nb:0.01, surplus is the iron and the inevitable impurity of the no more than iron composition 0.10 percent of its content thereof.After being drawn into welding wire with coppered welding wire, its copper-plated amount be in the welding wire ferrous components percent 0.3.
Embodiment 10
Select for use S and P all to carry out the smelting of welding wire steel less than the steel of 0.025 percetage by weight, its smelting process does not have specific (special) requirements.The Elements C that adds following percentage by weight in the process of smelting: 0.06, Si:1.0, Mn:1.40, Ti:0.02, B:0.008, Ni:0.009, Cr:0.05, Nb:0.05, surplus is the iron and the inevitable impurity of the no more than iron composition 0.40 percent of its content thereof.After being drawn into welding wire with coppered welding wire, its copper-plated amount be in the welding wire ferrous components percent 0.5.
Embodiment 11
Select for use S and P all to carry out the smelting of welding wire steel less than the steel of 0.015 percetage by weight, its smelting process does not have specific (special) requirements.The Elements C that adds following percentage by weight in the process of smelting: 0.12, Si:0.4, Mn:2.10, Ti:0.15, B:0.010, Ni:0.002, Cr:0.50, Nb:0.01, surplus is the iron and the inevitable impurity of the no more than iron composition 0.10 percent of its content thereof.After being drawn into welding wire with coppered welding wire, its copper-plated amount be in the welding wire ferrous components percent 0.3.
Embodiment 12
Select for use S and P all to carry out the smelting of welding wire steel less than the steel of 0.025 percetage by weight, its smelting process does not have specific (special) requirements.The Elements C that adds following percentage by weight in the process of smelting: 0.08, Si:0.6, Mn:2.10, Ti:0.20, B:0.005, Ni:0.50, Cr:1.5, Nb:0.01, surplus is the iron and the inevitable impurity of the no more than iron composition 0.30 percent of its content thereof.After being drawn into welding wire with coppered welding wire, its copper-plated amount be in the welding wire ferrous components percent 0.5.
In order further to improve the weld strength of welding wire, in the foregoing description 10,11 and 12, added the chromium Cr element that is not higher than 1.20% content.
Add the nickel element that is not higher than 1.50% content in the above-described embodiments, can make welding wire have certain quenching degree.
The third is the special welding wire that contains 80 kilogram-scale low welding crack sensibility high-strength steel plates of C, Si, Mn, Ti, B, Ni, Cr, Nb and V or copper, and embodiment is:
Embodiment 13
Select for use S and P all to carry out the smelting of welding wire steel less than the steel of 0.025 percetage by weight, its smelting process does not have specific (special) requirements.The Elements C that adds following percentage by weight in the process of smelting: 0.06, Si:1.0, Mn:1.40, Ti:0.02, B:0.008, Ni:0.60, Nb:0.05, V:0.01, surplus is the iron and the inevitable impurity of the no more than iron composition 0.40 percent of its content thereof.
Embodiment 14
Select for use S and P all to carry out the smelting of welding wire steel less than the steel of 0.025 percetage by weight, its smelting process does not have specific (special) requirements.The Elements C that adds following percentage by weight in the process of smelting: 0.08, Si:0.6, Mn:2.10, Ti:0.20, B:0.005, Ni:0.50, Nb:0.01, V:0.09, surplus is the iron and the inevitable impurity of the no more than iron composition 0.30 percent of its content thereof.After being drawn into welding wire with coppered welding wire, its copper-plated amount be in the welding wire ferrous components percent 0.5.
Embodiment 15
Select for use S and P all to carry out the smelting of welding wire steel less than the steel of 0.015 percetage by weight, its smelting process does not have specific (special) requirements.The Elements C that adds following percentage by weight in the process of smelting: 0.10, Si:0.7, Mn:1.50, Ti:0.12, B:0.004, Ni:0.050, Nb:0.02, V:0.02, surplus is the iron and the inevitable impurity of the no more than iron composition 0.30 percent of its content thereof.After being drawn into welding wire with coppered welding wire, its copper-plated amount be in the welding wire ferrous components percent 0.4.
Embodiment 16
Select for use S and P all to carry out the smelting of welding wire steel less than the steel of 0.10 percetage by weight, its smelting process does not have specific (special) requirements.The Elements C that adds following percentage by weight in the process of smelting: 0.10, Si:0.8, Mn:1.80, Ti:0.10, B:0.001, Ni:0.40, Cr:1.0, Nb:0.09, V:0.01, surplus is the iron and the inevitable impurity of the no more than iron composition 0.01 percent of its content thereof.After being drawn into welding wire with coppered welding wire, its copper-plated amount be in the welding wire ferrous components percent 0.2.
Embodiment 17
Select for use S and P all to carry out the smelting of welding wire steel less than the steel of 0.015 percetage by weight, its smelting process does not have specific (special) requirements.The Elements C that adds following percentage by weight in the process of smelting: 0.12, Si:0.4, Mn:2.10, Ti:0.15, B:0.010, Ni:0.20, Cr:0.50, Nb:0.01, V:0.09, surplus is the iron and the inevitable impurity of the no more than iron composition 0.10 percent of its content thereof.After being drawn into welding wire with coppered welding wire, its copper-plated amount be in the welding wire ferrous components percent 0.3.
Embodiment 18
Select for use S and P all to carry out the smelting of welding wire steel less than the steel of 0.005 percetage by weight, its smelting process does not have specific (special) requirements.The Elements C that adds following percentage by weight in the process of smelting: 0.05, Si:0.5, Mn:2.00, Ti:0.08, B:0.020, Ni:0.03, Cr:0.10, Nb:0.07, V:0.01, surplus is the iron and the inevitable impurity of the no more than iron composition 0.10 percent of its content thereof.After being drawn into welding wire with coppered welding wire, its copper-plated amount be in the welding wire ferrous components percent 0.3.
In order further to improve the weld strength of welding wire, in the foregoing description 16,17 and 18, added the chromium Cr element that is not higher than 1.20% content.
Add the nickel element that is not higher than 1.50% content in the above-described embodiments, can make welding wire have certain quenching degree.
More than the special welding wire of 80 kilogram-scale low welding crack sensibility high-strength steel plates of three kinds of compositions all can realize purpose of the present invention, and owing in welding wire, contain an amount of Ti, V, B and/or Nb, can improve the obdurability of weld seam greatly, thereby reduced the carbon equivalent exponential sum cold crack index of commissure, heat treatment step after preheating procedure in the time of can saving welding and the welding is simplified the technological requirement of welding.
According to experiment, the welding wire (specification is that diameter is 1.6 millimeters) that utilizes the foregoing description to prepare, 80 kilogram-scale low welding crack sensibility high-strength steel plates deposited metal mechanical property parameters of welded seam under subzero 50 ℃ temperature to the Q690 model is: tensile strength (Rm) 〉=800Mpa, yield strength (Rr0.2) 〉=690Mpa, V-type impact absorbing energy (AKv) 〉=80J.
Claims (9)
1,80 kilogram-scale low welding crack sensibility high-strength steel plate special-purpose welding sticks, it is characterized in that: basic element by following percentage by weight: carbon C:0.06-0.12, silicon Si:0.40-1.00, manganese Mn:1.40-2.10, titanium Ti:0.02-0.20, boron: 0.001-0.01, nickel: 0.001-1.50, vanadium V≤0.10, sulphur S≤0.10, phosphorus P≤0.10, surplus are that iron and unavoidable impurities thereof constitute.
2,80 kilogram-scale low welding crack sensibility high-strength steel plate special-purpose welding sticks according to claim 1 is characterized in that: constitute the chromium Cr element that contains in the described welding wire less than 1.20%.
3,80 kilogram-scale low welding crack sensibility high-strength steel plate special-purpose welding sticks according to claim 1 and 2 is characterized in that: constitute the copper that contains in the described welding wire less than 0.50%.
4,80 kilogram-scale low welding crack sensibility high-strength steel plate special-purpose welding sticks, it is characterized in that: basic element by following percentage by weight: carbon C:0.06-0.12, silicon Si:0.40-1.00, manganese Mn:1.40-2.10, titanium Ti:0.02-0.20, boron: 0.001-0.01, nickel: 0.001-1.50, niobium Nb≤0.10, sulphur S≤0.10, phosphorus P≤0.10, surplus are that iron and unavoidable impurities thereof constitute.
5,80 kilogram-scale low welding crack sensibility high-strength steel plate special-purpose welding sticks according to claim 4 is characterized in that: constitute the chromium Cr element that contains in the described welding wire less than 1.20%.
6, according to claim 4 or 5 described 80 kilogram-scale low welding crack sensibility high-strength steel plate special-purpose welding sticks, it is characterized in that: constitute the copper that contains in the described welding wire less than 0.50%.
7,80 kilogram-scale low welding crack sensibility high-strength steel plate special-purpose welding sticks, it is characterized in that: basic element by following percentage by weight: carbon C:0.06-0.12, silicon Si:0.40-1.00, manganese Mn:1.40-2.10, titanium Ti:0.02-0.20, boron: 0.001-0.01, nickel: 0.001-1.50, chromium Cr:0.05-1.20, niobium Nb≤0.10, vanadium V≤0.10, sulphur S≤0.10, phosphorus P≤0.10, surplus are that iron and unavoidable impurities thereof constitute.
8,80 kilogram-scale low welding crack sensibility high-strength steel plate special-purpose welding sticks according to claim 7 is characterized in that: constitute the chromium Cr element that contains in the described welding wire less than 1.20%.
9, according to claim 7 or 8 described 80 kilogram-scale low welding crack sensibility high-strength steel plate special-purpose welding sticks, it is characterized in that: constitute the copper that contains in the described welding wire less than 0.50%.
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| CNA2008100839020A CN101234459A (en) | 2007-12-03 | 2008-03-07 | 80 kilogram-scale low welding crack sensibility high-strength steel plate special-purpose welding stick |
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| CN200710195866.2 | 2007-12-03 | ||
| CNA2007101958662A CN101157166A (en) | 2007-12-03 | 2007-12-03 | 80 kilogram grade low welding crack sensibility high-strength steel plate special-purpose welding wire |
| CNA2008100839020A CN101234459A (en) | 2007-12-03 | 2008-03-07 | 80 kilogram-scale low welding crack sensibility high-strength steel plate special-purpose welding stick |
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| CNA2008100839020A Pending CN101234459A (en) | 2007-12-03 | 2008-03-07 | 80 kilogram-scale low welding crack sensibility high-strength steel plate special-purpose welding stick |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106475708A (en) * | 2017-01-03 | 2017-03-08 | 天津大桥焊材集团有限公司 | Gas shielded arc welding solid welding wire for X80 pipe line steel boxing seam welding |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102296251A (en) * | 2010-06-23 | 2011-12-28 | 宝山钢铁股份有限公司 | Alloy constructional steel for weld wire, and manufacturing method of alloy constructional steel |
| CN101905391B (en) * | 2010-08-26 | 2013-01-09 | 宜昌猴王焊丝有限公司 | Submerged arc welding wire of high tensile pipeline steel |
| CN102489859B (en) * | 2011-12-16 | 2013-08-14 | 长春三友汽车部件制造有限公司 | Method for improving mechanical property of advanced high-strength steel spot welding joint |
| CN103495815B (en) * | 2013-09-30 | 2015-10-28 | 中联重科股份有限公司 | Welding material, application thereof and welding method |
| CN105195919A (en) * | 2014-06-11 | 2015-12-30 | 鞍钢股份有限公司 | Steel for gas shielded welding wire for high-strength weathering steel and welding wire |
| CN104801881A (en) * | 2015-04-24 | 2015-07-29 | 柳州金茂机械有限公司 | Welding agent formula for welding process |
| CN104801891A (en) * | 2015-04-24 | 2015-07-29 | 柳州金茂机械有限公司 | Manufacturing method of welding wire for welding process |
| CN107081538A (en) * | 2017-05-12 | 2017-08-22 | 天长市通联焊业有限公司 | A kind of high-strength corrosion-resisting welding wire |
| CN111318833A (en) * | 2020-03-25 | 2020-06-23 | 武汉钢铁有限公司 | High-toughness gas shielded welding wire rod with tensile strength not less than 590MPa and preparation method thereof |
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2007
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106475708A (en) * | 2017-01-03 | 2017-03-08 | 天津大桥焊材集团有限公司 | Gas shielded arc welding solid welding wire for X80 pipe line steel boxing seam welding |
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