CN100398250C - High-strength weather-resistant welding rod - Google Patents
High-strength weather-resistant welding rod Download PDFInfo
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- CN100398250C CN100398250C CNB2004100541278A CN200410054127A CN100398250C CN 100398250 C CN100398250 C CN 100398250C CN B2004100541278 A CNB2004100541278 A CN B2004100541278A CN 200410054127 A CN200410054127 A CN 200410054127A CN 100398250 C CN100398250 C CN 100398250C
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- Prior art keywords
- welding rod
- powder
- larger
- equal
- strength
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- 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.)
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- 238000003466 welding Methods 0.000 title claims abstract description 46
- 229910052751 metal Inorganic materials 0.000 claims abstract description 28
- 239000002184 metal Substances 0.000 claims abstract description 28
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 11
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 7
- RJDOZRNNYVAULJ-UHFFFAOYSA-L [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[F-].[F-].[Mg++].[Mg++].[Mg++].[Al+3].[Si+4].[Si+4].[Si+4].[K+] Chemical compound [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[F-].[F-].[Mg++].[Mg++].[Mg++].[Al+3].[Si+4].[Si+4].[Si+4].[K+] RJDOZRNNYVAULJ-UHFFFAOYSA-L 0.000 claims abstract description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910001200 Ferrotitanium Inorganic materials 0.000 claims abstract description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 5
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 claims abstract description 5
- 239000011248 coating agent Substances 0.000 claims abstract description 5
- 238000000576 coating method Methods 0.000 claims abstract description 5
- 239000010436 fluorite Substances 0.000 claims abstract description 5
- 239000004579 marble Substances 0.000 claims abstract description 5
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 4
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 3
- 239000010703 silicon Substances 0.000 claims abstract description 3
- 229910000519 Ferrosilicon Inorganic materials 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 5
- 239000004408 titanium dioxide Substances 0.000 claims description 5
- 229910021487 silica fume Inorganic materials 0.000 claims description 4
- 229910052618 mica group Inorganic materials 0.000 claims 1
- 229910052804 chromium Inorganic materials 0.000 abstract description 4
- 230000002349 favourable effect Effects 0.000 abstract 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 abstract 1
- 229910000616 Ferromanganese Inorganic materials 0.000 abstract 1
- 239000011651 chromium Substances 0.000 abstract 1
- DALUDRGQOYMVLD-UHFFFAOYSA-N iron manganese Chemical compound [Mn].[Fe] DALUDRGQOYMVLD-UHFFFAOYSA-N 0.000 abstract 1
- 239000000843 powder Substances 0.000 abstract 1
- 239000011863 silicon-based powder Substances 0.000 abstract 1
- 235000010215 titanium dioxide Nutrition 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 description 10
- 238000005260 corrosion Methods 0.000 description 10
- 229910000870 Weathering steel Inorganic materials 0.000 description 7
- 229910018054 Ni-Cu Inorganic materials 0.000 description 6
- 229910018481 Ni—Cu Inorganic materials 0.000 description 6
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000004580 weight loss Effects 0.000 description 3
- 229910000881 Cu alloy Inorganic materials 0.000 description 2
- 229910017888 Cu—P Inorganic materials 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 229910001021 Ferroalloy Inorganic materials 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910000617 Mangalloy Inorganic materials 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- QFGIVKNKFPCKAW-UHFFFAOYSA-N [Mn].[C] Chemical compound [Mn].[C] QFGIVKNKFPCKAW-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 235000000396 iron Nutrition 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
Landscapes
- Nonmetallic Welding Materials (AREA)
- Arc Welding In General (AREA)
Abstract
The present invention relates to a high-strength weather-resistance welding rod. The coating of the welding rod comprises the following components with the mass percentage: 35 to 40% of marble, 15 to 20% of fluorite, 8 to 11% of ferrotitanium, 3 to 8% of ferromanganese medium carbon, 1 to 3% of ferric silicon, 2 to 3% of synthetic mica with 40 meshes, 2 to 4% of micro silicon powder, 12 to 20% of iron powder, 1 to 2% of metal chromium, 0.5 to 1% copper powder, 1 to 2% of nickel powder and 4 to 8% of titanium white powder. The deposited metal and welding joints obtained by the welding rod of the present invention have favorable weather-resistance properties and favorable combination properties; particularly, the impact toughness is favorable at the low temperature of-40 DEG C; the yield strength of the welding rod is larger than or equal to 450MPa; the tensile strength is larger than or equal to 550MPa, the elongation rate is larger than or equal to 22%, and the Akv is larger than or equal to 100 J at the temperature of-40 DEG C.
Description
Technical field
The present invention relates to field of welding material; Be particularly related to the supporting welding rod of the weathering steel that is used for yield strength 450MPa.
Background technology
Also do not find yield strength 〉=450MPa in the market, tensile strength 〉=550MPa, the weather-proof welding rod of high-strength and high ductility of CVN impact flexibility Akv 〉=100J in the time of-40 ℃.
Common weathering steel welding rod has: Cu-P, Cr-Cu, Ni-Cu, W-Cu, Cr-Ni-Cu alloy system.Cu-P be welding rod because of containing the P height, toughness and weldability are relatively poor, use less.On the one hand, Cr, Ni element be comparatively expensive, need rationally and economic content; On the other hand, Cr-Cu, Ni-Cu, W-Cu alloy system can not well match with high-strength weathering steel Q450NQR1.Regular tenacity level other weathering steel welding rod such as high-efficiency weather proof irons steel welding rod, but it is the W-Cu alloy system, and its change chemical composition can not better be mated with the Q450NQR1 steel, thereby finally can influence the performance of welding point.
Summary of the invention
The object of the present invention is to provide a kind of high-tensile weather-proof welding rod, can solve the supporting stick electrode problem of railway with the weathering steel Q450NQR1 of yield strength 450MPa.
Technical scheme of the present invention is: high-strength weathering welding rod, its coating component are (mass percent): marble 35-40%; Fluorite 15-20%; Ferro-titanium 8-11%; Mid-carbon fe-mn 3-8%; The mass percentage content of silicon is 45% ferrosilicon 1-3%; Synthetic mica 40 order 2-3%; SILICA FUME 2-4%; Iron powder 12-20%; Crome metal 1-2%; Copper powder 0.5-1%; Nickel powder 1-2%; Titanium dioxide 4-8%.
The factor of decision welding rod performance mainly is the prescription design of welding rod.The present invention is by accurately adjusting CaCO
3-CaF
2-SiO
2Slag system adds an amount of ferroalloy, appropriate design welding rod prescription in slag system.The welding rod of development has good atmospheric corrosion resistance and good all-position welding processing performance, and mechanical property satisfies instructions for use fully, has good cracking resistance and good plasticity and toughness, A
KV(40 ℃) are greater than 100J.
Because designed welding rod will have atmospheric corrosion resistance, and is complementary with weathering steel Q450NQR1.Therefore requiring the welding rod deposited metal is the Cr-Ni-Cu system, but the content of these three elements is wanted strict control, and at first comparatively expensive because of Cr, Ni element, Cr, Cu element can worsen the mechanical property of deposited metal simultaneously, make its low-temperature impact toughness obviously descend A
KV(40 ℃) can not reach the steel instructions for use.
Deposited metal of the present invention adopts the Cr-Ni-Cu alloy system, wherein, and crome metal 1-2%; Copper powder 0.5-1%; Nickel powder 1-2% guarantees the mechanical property and the weatherability of welding rod deposited metal, reaches the optimum Match of chemical composition and mother metal simultaneously.
Ferro-titanium, titanium dioxide can guarantee to contain certain Ti in the deposited metal, thereby guarantee that deposited metal has good comprehensive mechanical property and high low-temperature impact toughness.
Medium carbon manganese steel, ferrosilicon, SILICA FUME, marble, fluorite and synthetic mica, titanium dioxide are to guarantee processing property of electrode, extrusion performance and low hydrogen type etc.
Iron powder is to guarantee that weather-proof welding rod has suitable deposition efficiency.
Beneficial effect of the present invention
Welding rod of the present invention compared with prior art has following advantage:
1. manual welding rod gained deposited metal of the present invention and welding point have good atmospheric corrosion resistance, have good comprehensive performances simultaneously, and especially-40 ℃ low-temperature impact toughness is fine.
2. the combination property of manual welding rod gained deposited metal of the present invention is: yield strength 〉=450MPa; Tensile strength 〉=550MPa; Percentage elongation 〉=22%; Akv 〉=the 100J of (40 ℃ condition under).
3. an amount of, rational Cr-Ni-Cu alloy system proportioning has economy.
The specific embodiment
Coating recipe embodiment sees Table 1, and core wire is H08A; Table 2 is depicted as the chemical composition of welding rod deposited metal.
Table 1 is implemented the welding rod coating recipe example
| Embodiment | Marble | Fluorite | Ferro-titanium | Mid-carbon fe-mn | 45% ferrosilicon | Synthetic mica 40 orders | SILICA FUME | Iron powder | Crome metal | Copper powder | Nickel powder | Titanium dioxide |
| 1 | 36％ | 16％ | 10％ | 5％ | 3％ | 3％ | 3％ | 16％ | 1.3％ | 0.7％ | 1.0％ | 5％ |
| 2 | 40％ | 17％ | 8％ | 6％ | 2％ | 3％ | 2％ | 12％ | 1.8％ | 0.8％ | 1.4％ | 6％ |
| 3 | 38％ | 15％ | 9％ | 8％ | 2％ | 2％ | 3％ | 14％ | 1.9％ | 0.9％ | 1.2％ | 5％ |
| 4 | 35％ | 19％ | 10％ | 6％ | 2％ | 2％ | 2％ | 13％ | 1.0％ | 0.7％ | 1.3％ | 8％ |
| 5 | 35％ | 18％ | 8％ | 4％ | 1％ | 2％ | 3％ | 18％ | 1.5％ | 0.5％ | 2.0％ | 7％ |
Table 2 is implemented the chemical composition (mass percent) of welding rod deposited metal
| Embodiment | C | Mn | Si | S | P | Ni | Cu | Cr |
| 1 | 0.066 | 1.22 | 0.26 | 0.005 | 0.010 | 0.49 | 0.25 | 0.48 |
| 2 | 0.077 | 1.20 | 0.21 | 0.007 | 0.012 | 0.55 | 0.25 | 0.50 |
| 3 | 0.069 | 1.10 | 0.17 | 0.011 | 0.013 | 0.53 | 0.28 | 0.48 |
| 4 | 0.068 | 1.09 | 0.16 | 0.006 | 0.012 | 0.51 | 0.25 | 0.47 |
| 5 | 0.050 | 0.80 | 0.10 | 0.006 | 0.011 | 0.53 | 0.23 | 0.48 |
Table 3 is depicted as the mechanical property of embodiment of the invention welding rod and contrast welding rod deposited metal thereof, and therefrom as can be seen, the performance of welding rod deposited metal of the present invention all can reach high strength, high-elongation and high low-temperature impact toughness.
Table 3 is implemented the mechanical property of welding rod deposited metal
| Embodiment | Tensile strength sigma b (MPa) | Yield strength σ s (MPa) | Percentage elongation δ 5 (%) | V-type impact absorbing energy A KV(J)(-40℃) |
| 1 | 570 | 470 | 26 | 117 |
| 2 | 575 | 485 | 27 | 151 |
| 3 | 585 | 485 | 26 | 109 |
| 4 | 570 | 475 | 28 | 161 |
| 5 | 560 | 455 | 28 | 146 |
| Comparative Examples J506NiCu | ≥490 | ≥390 | ≥22 | ≥27(-30℃) |
What atmospheric exposure test was adopted is indoor accelerate corrosion test (cycle is soaked into corrosion test), all compares with the mother metal Q450NQR1 with high-weatherability, and result of the test sees Table 4.
Table 4 is implemented the corrosive nature of welding rod deposited metal
| Embodiment | Corrosion weight loss amount g/m 2 | Relative rate of corrosion |
| 1 | 72.5 | 1.5％ |
| 2 | 72.0 | 0.8％ |
| 3 | 71.8 | 0.6％ |
| 4 | 71.9 | 0.7％ |
| 5 | 72.2 | 1.1％ |
| Comparative Examples Q450NQR1 | 71.4 | / |
Annotate: relative rate of corrosion=| mother metal weight loss-deposited metal weight loss |/mother metal weight loss; Numerical value is more little, illustrates that weatherability is suitable.
Table 4 is depicted as the corrosive nature of embodiment welding rod deposited metal, and the relative rate of corrosion of embodiment welding rod is far smaller than 10%, and therefore, the atmospheric corrosion resistance ability and the mother metal of table 4 explanation welding rod deposited metal are suitable.
Welding rod of the present invention is suitable for welding other weathering steel of tensile strength 550MPa level, and main application fields has: rail truck, building structure, bridge, engineering machinery, container etc.
Claims (3)
1. high-strength weathering welding rod, the chemical composition of its coating is (mass percent):
Marble 35-40%:
Fluorite 15-20%;
Ferro-titanium 8-11%;
Mid-carbon fe-mn 3-8%;
Ferrosilicon 1-3%;
Synthetic mica 2-3%;
SILICA FUME 2-4%;
Iron powder 12-20%;
Crome metal 1-2%;
Copper powder 0.5-1%;
Nickel powder 1-2%;
Titanium dioxide 4-8%.
2. high-strength weathering welding rod as claimed in claim 1 is characterized in that, described ferrosilicon is that the mass percentage content of silicon is 45% ferrosilicon.
3. high-strength weathering welding rod as claimed in claim 1 is characterized in that, described synthetic mica is 40 order synthetic micas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100541278A CN100398250C (en) | 2004-08-30 | 2004-08-30 | High-strength weather-resistant welding rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100541278A CN100398250C (en) | 2004-08-30 | 2004-08-30 | High-strength weather-resistant welding rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1743126A CN1743126A (en) | 2006-03-08 |
| CN100398250C true CN100398250C (en) | 2008-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100541278A Expired - Lifetime CN100398250C (en) | 2004-08-30 | 2004-08-30 | High-strength weather-resistant welding rod |
Country Status (1)
| Country | Link |
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| CN (1) | CN100398250C (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101537544B (en) * | 2009-04-28 | 2011-03-23 | 天津市金桥焊材集团有限公司 | Electric welding rod for welding large scale low temperature spherical tank steel |
| CN102554500B (en) * | 2010-12-28 | 2014-03-19 | 昆山京群焊材科技有限公司 | High-strength and high-toughness low alloy steel electric welding rod |
| CN102528320B (en) * | 2010-12-28 | 2014-03-19 | 昆山京群焊材科技有限公司 | Ultralow-temperature high-toughness austenitic electrode |
| CN102248329B (en) * | 2011-06-27 | 2012-12-26 | 天津市金桥焊材集团有限公司 | High-strength high-tenacity welding rod for E-grade cast steel repair welding |
| CN103817463A (en) * | 2012-11-16 | 2014-05-28 | 李彬 | High-strength welding rod |
| CN103934592B (en) * | 2014-04-18 | 2016-02-10 | 中国电建集团上海能源装备有限公司 | A core wire for up to 55kg weathering steel welding rod, coating and welding rod thereof and preparation method |
| CN108080814A (en) * | 2017-12-22 | 2018-05-29 | 重庆瑜煌电力设备制造有限公司 | A kind of weathering steel welding rod and preparation method thereof |
| CN107984119A (en) * | 2017-12-22 | 2018-05-04 | 重庆瑜煌电力设备制造有限公司 | Preparation method for the welding rod for welding weather-proof angle steel |
| CN110154227B (en) * | 2019-05-05 | 2021-05-25 | 鞍钢建设集团有限公司 | Environment-friendly energy-saving waterproof wall material for prefabricated building and production method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06262390A (en) * | 1993-03-12 | 1994-09-20 | Nippon Steel Corp | Coated electrode for rail enclosed arc welding |
| JPH07185881A (en) * | 1993-12-27 | 1995-07-25 | Nippon Steel Corp | Coated electrode for cr-mo-based rail |
| CN1034560C (en) * | 1994-11-20 | 1997-04-16 | 内蒙古第一机械制造厂 | High-efficiency iron powder weather-resistant steel welding rod |
| CN1481969A (en) * | 2003-07-29 | 2004-03-17 | 沪东中华造船(集团)有限公司 | Welding electrode for high manganese carbon steel rail |
-
2004
- 2004-08-30 CN CNB2004100541278A patent/CN100398250C/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06262390A (en) * | 1993-03-12 | 1994-09-20 | Nippon Steel Corp | Coated electrode for rail enclosed arc welding |
| JPH07185881A (en) * | 1993-12-27 | 1995-07-25 | Nippon Steel Corp | Coated electrode for cr-mo-based rail |
| CN1034560C (en) * | 1994-11-20 | 1997-04-16 | 内蒙古第一机械制造厂 | High-efficiency iron powder weather-resistant steel welding rod |
| CN1481969A (en) * | 2003-07-29 | 2004-03-17 | 沪东中华造船(集团)有限公司 | Welding electrode for high manganese carbon steel rail |
Non-Patent Citations (2)
| Title |
|---|
| 铁道车辆用钛钙型耐候钢焊条的研制. 任德亮，许昌玲，廖波.石家庄铁道学院学报，第16卷第1期. 2003 |
| 铁道车辆用钛钙型耐候钢焊条的研制. 任德亮，许昌玲，廖波.石家庄铁道学院学报，第16卷第1期. 2003 * |
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| CN1743126A (en) | 2006-03-08 |
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Address after: 201900, Fujin Road, Shanghai, Baoshan District orchard Co-patentee after: Tianjin Jinqiao Welding Materials Group Co.,Ltd. Patentee after: BAOSHAN IRON & STEEL Co.,Ltd. Address before: 201900, Fujin Road, Shanghai, Baoshan District orchard Co-patentee before: TIANJIN GOLDEN BRIDGE WELDING MATERIALS GROUP Co.,Ltd. Patentee before: BAOSHAN IRON & STEEL Co.,Ltd. |
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