CN102642102A - Welding rod capable of improving low-temperature welding property of 9Cr1Mo heat resistant steel - Google Patents
Welding rod capable of improving low-temperature welding property of 9Cr1Mo heat resistant steel Download PDFInfo
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- CN102642102A CN102642102A CN2012101217897A CN201210121789A CN102642102A CN 102642102 A CN102642102 A CN 102642102A CN 2012101217897 A CN2012101217897 A CN 2012101217897A CN 201210121789 A CN201210121789 A CN 201210121789A CN 102642102 A CN102642102 A CN 102642102A
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- welding
- welding rod
- coating
- temperature
- core wire
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- 238000003466 welding Methods 0.000 title claims abstract description 42
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 10
- 239000010959 steel Substances 0.000 title claims abstract description 10
- 239000011248 coating agent Substances 0.000 claims abstract description 21
- 238000000576 coating method Methods 0.000 claims abstract description 21
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910000592 Ferroniobium Inorganic materials 0.000 claims abstract description 10
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 10
- ZFGFKQDDQUAJQP-UHFFFAOYSA-N iron niobium Chemical compound [Fe].[Fe].[Nb] ZFGFKQDDQUAJQP-UHFFFAOYSA-N 0.000 claims abstract description 10
- PNXOJQQRXBVKEX-UHFFFAOYSA-N iron vanadium Chemical compound [V].[Fe] PNXOJQQRXBVKEX-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910000616 Ferromanganese Inorganic materials 0.000 claims abstract description 9
- 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 9
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 claims abstract description 9
- 239000010436 fluorite Substances 0.000 claims abstract description 9
- DALUDRGQOYMVLD-UHFFFAOYSA-N iron manganese Chemical compound [Mn].[Fe] DALUDRGQOYMVLD-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000004579 marble Substances 0.000 claims abstract description 9
- 239000002994 raw material Substances 0.000 claims abstract description 9
- 229910021487 silica fume Inorganic materials 0.000 claims abstract description 9
- 239000000843 powder Substances 0.000 claims description 15
- 229910000519 Ferrosilicon Inorganic materials 0.000 claims description 9
- 235000010215 titanium dioxide Nutrition 0.000 claims description 8
- 238000010276 construction Methods 0.000 abstract description 3
- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical compound O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 abstract description 2
- 229910001200 Ferrotitanium Inorganic materials 0.000 abstract 1
- 229910000628 Ferrovanadium Inorganic materials 0.000 abstract 1
- XWHPIFXRKKHEKR-UHFFFAOYSA-N iron silicon Chemical compound [Si].[Fe] XWHPIFXRKKHEKR-UHFFFAOYSA-N 0.000 abstract 1
- 239000004408 titanium dioxide Substances 0.000 abstract 1
- 238000001125 extrusion Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008676 import Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 235000019353 potassium silicate Nutrition 0.000 description 3
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 3
- 208000037656 Respiratory Sounds Diseases 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- BITYAPCSNKJESK-UHFFFAOYSA-N potassiosodium Chemical compound [Na].[K] BITYAPCSNKJESK-UHFFFAOYSA-N 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000005491 wire drawing Methods 0.000 description 1
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- Nonmetallic Welding Materials (AREA)
Abstract
The invention relates to a welding rod capable of improving a low-temperature welding property of 9Cr1Mo heat resistant steel, belonging to a welding rod. The welding rod comprises a welding core and a coating, wherein the welding rod is selected from an H08GX type welding rod, and the welding rod is characterized in that the coating is prepared by the following raw materials in percentages by weight: 30-40% of marble, 10-20% of fluorite, 0.5-2% of synthetic mica, 0.5-2% of titanium dioxide, 1-3% of rutile, 1.5-4% of silica fume, 1-3% of ferromanganese, 7-11% of ferrotitanium, 1-3% of silicon iron, 0.5-2.0% of ferrovanadium, 0.5-1.5% of ferroniobium, 20-30% of Cr, 1-3% of Mo, 1-4% of nickel powder and 0.3-1.5% of yttrium oxide. According to the invention, the low-temperature welding property of the steel is effectively improved, the low-temperature toughness of the welding joint is improved, the properties of the welding joint under the working parameters are ensured, and the welding rod is suitable for construction requirements under low-temperature environment in a northern area.
Description
Technical field
The invention belongs to a kind of welding rod.
Background technology
Under low temperature environment, utilize existing import or homemade welding material to supercritical unit in the 9Cr1Mo steel weld; Its weldability is relatively poor; Welding point toughness is low, occurs defectives such as crackle easily, especially is not suitable for the requirement of construction under the northern area low temperature environment.
Summary of the invention
The present invention provides a kind of welding rod that can improve 9Cr1Mo heat resisting steel soldered performance, and relatively poor to solve existing such welding rod weldability, welding point toughness is low, occurs the problem of crackle easily.
The technical scheme that the present invention takes is: be made up of core wire and coating two parts, wherein core wire is selected H08GX type core wire for use, and coating is processed by following raw materials by weight percent:
Marble 30-40%, fluorite 10-20%, synthetic mica 0.5-2%, titanium white powder 0.5-2%, rutile 1-3%; SILICA FUME 1.5-4%, ferromanganese 1-3%, ferrotianium 7-11%, ferrosilicon 1-3%, vanadium iron 0.5-2.0%; Ferro-niobium 0.5-1.5%, Cr20-30%, Mo1-3%, nickel powder 1-4%, yittrium oxide 0.3-1.5%.
The present invention adopts conventional welding rod production method to produce.
Welding material among the present invention; Through the adjustment welding rod coating recipe, and add a certain proportion of yittrium oxide, improved the soldered property of such steel effectively; Improved the low-temperature flexibility of welding point; Simultaneously can guarantee the performance under the welding point running parameter, be suitable for the requirement of construction under the northern area low temperature environment, fill up exploitation of 9Cr1Mo steel welding material and the blank of using in the low temperature environment.
Welding point metallographic structure, hardness and normal temperature after utilizing this welding rod to weld, high temperature tensile properties, low temperature impact properties, diffusible hydrogen content etc. meet ASME, AWS and GB5310 " seamless steel tubes and pipes for high pressure boiler " and " DL438/T thermal power plant alloying technology supervision rules " requirement.The weakest heat affected area of property of welded joint particularly is higher than similar import welding rod 69.1% when the welding point heat affected area ballistic work of welding rod weldering system of the present invention is higher than 63.4% ,-20 ℃ of similar import welding rods in the time of 0 ℃.The high-temperature bearing parts of this trial-production welding rod welding move normally with on probation having reached more than the 2000h of Subcritical Units overcritical.
The specific embodiment
Embodiment 1
Be made up of core wire and coating two parts, wherein core wire is selected H08GX type core wire for use, and coating is processed by following raw materials by weight percent:
Marble 40%, fluorite 20%, synthetic mica 0.5%, titanium white powder 0.5%, rutile 1%, SILICA FUME 1.5%, ferromanganese 1%, ferrotianium 7%, ferrosilicon 1%, vanadium iron 0.5%, ferro-niobium 0.5%, Cr24.2%, Mo1%, nickel powder 1%, yittrium oxide 0.3%.
Embodiment 2
Be made up of core wire and coating two parts, wherein core wire is selected H08GX type core wire for use, and coating is processed by following raw materials by weight percent:
Marble 30%, fluorite 15%, synthetic mica 1.25%, titanium white powder 1.25%, rutile 2%, SILICA FUME 2.75%, ferromanganese 2%, ferrotianium 9%, ferrosilicon 2%, vanadium iron 1.25%, ferro-niobium 1%, Cr27.1%, Mo2%, nickel powder 2.5%, yittrium oxide 0.9%.
Embodiment 3
Be made up of core wire and coating two parts, wherein core wire is selected H08GX type core wire for use, and coating is processed by following raw materials by weight percent:
Marble 30%, fluorite 10%, synthetic mica 2%, titanium white powder 2%, rutile 3%, SILICA FUME 4%, ferromanganese 3%, ferrotianium 11%, ferrosilicon 3%, vanadium iron 2.0%, ferro-niobium 1.5%, Cr20%, Mo3%, nickel powder 4%, yittrium oxide 1.5%.
Embodiment 4
Be made up of core wire and coating two parts, wherein core wire is selected S, H08GX type core wire that P content is lower for use, and coating is processed by following raw materials by weight percent:
Marble 35%, fluorite 15%, synthetic mica 1.5%, titanium white powder 1.5%, rutile 2%, SILICA FUME 3%, ferromanganese 2%, ferrotianium 9%, ferrosilicon 2%, vanadium iron 0.5%, ferro-niobium 0.5%, Cr25%, Mo1%, nickel powder 1%, yittrium oxide 1.0%.
Embodiment 5
Be made up of core wire and coating two parts, wherein core wire is selected S, H08GX type core wire that P content is lower for use, and coating is processed by following raw materials by weight percent:
Marble 40%, fluorite 15%, synthetic mica 1.5%, titanium white powder 1.5%, rutile 2%, SILICA FUME 3%, ferromanganese 2%, ferrotianium 9%, ferrosilicon 2%, vanadium iron 0.5%, ferro-niobium 0.5%, Cr20%, Mo1%, nickel powder 1%, yittrium oxide 1.0%.
Embodiment 6
Be made up of core wire and coating two parts, wherein core wire is selected S, H08GX type core wire that P content is lower for use, and coating is processed by following raw materials by weight percent:
Marble 30%, fluorite 15%, synthetic mica 1.5%, titanium white powder 1.5%, rutile 2%, SILICA FUME 3%, ferromanganese 2%, ferrotianium 9%, ferrosilicon 2%, vanadium iron 0.5%, ferro-niobium 0.5%, Cr30%, Mo1%, nickel powder 1%, yittrium oxide 1.0%.
The present invention adopts conventional welding rod production method to produce.Specifically comprise the inspection of raw and process materials, derust, the preparation of wire drawing, chopping, waterglass, join powder,, carry out accurate weighing by prescription through X luminoscope various medicinal powder after the assay was approved.Yittrium oxide need adopt electronic balance to carry out weighing, quality error is controlled at ± 0.2% in; Breading; Because yittrium oxide density is bigger, evenly distribute in order to ensure shaping coating middle rare earth element, at first yttrium oxide powder and manganese, ferrotianium, ferrosilicon, vanadium iron, ferro-niobium, chromium powder, molybdenum powder, nickel powder etc. are carried out premixed powder; Mix full and uniform after, add mineral powders again and carry out secondary stirring; Potassium sodium mixing water glass is selected in wet-mixing for use, requires water glass solution and medicinal powder to mix, fully, guarantees carrying out smoothly and obtaining good welding rod presentation quality of extrusion.Extrusion carries out extrusion with medicinal powder and iron core and processes the wet welding bar on hydraulic press, in the extrusion process, and strict control extrusion pressure and welding rod core shift degree.Toast, the wet welding bar is sent in the chain furnace dried, the baking temperature and the stoving time of strict control welding rod in bake process, baking temperature is controlled at more than 370 ℃, guarantees to obtain minimum coating water content.
Claims (1)
1. the welding rod that can improve 9Cr1Mo heat resisting steel soldered performance is made up of core wire and coating two parts, and wherein core wire is selected H08GX type core wire for use, it is characterized in that: coating is processed by following raw materials by weight percent:
Marble 30-40%, fluorite 10-20%, synthetic mica 0.5-2%, titanium white powder 0.5-2%, rutile 1-3%; SILICA FUME 1.5-4%, ferromanganese 1-3%, ferrotianium 7-11%, ferrosilicon 1-3%, vanadium iron 0.5-2.0%; Ferro-niobium 0.5-1.5%, Cr20-30%, Mo1-3%, nickel powder 1-4%, yittrium oxide 0.3-1.5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101217897A CN102642102A (en) | 2012-04-24 | 2012-04-24 | Welding rod capable of improving low-temperature welding property of 9Cr1Mo heat resistant steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101217897A CN102642102A (en) | 2012-04-24 | 2012-04-24 | Welding rod capable of improving low-temperature welding property of 9Cr1Mo heat resistant steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102642102A true CN102642102A (en) | 2012-08-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101217897A Pending CN102642102A (en) | 2012-04-24 | 2012-04-24 | Welding rod capable of improving low-temperature welding property of 9Cr1Mo heat resistant steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102642102A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102962607A (en) * | 2012-12-11 | 2013-03-13 | 杨文宝 | Soldering flux for cast iron welding and use method of same |
| CN103008917A (en) * | 2012-12-19 | 2013-04-03 | 四川大西洋焊接材料股份有限公司 | Ultra-supercritical novel ferrite heat-resistant steel welding electrode |
| CN103878506A (en) * | 2013-11-29 | 2014-06-25 | 中国船舶重工集团公司第七二五研究所 | Low-strength high-toughness and heat-resistant steel welding rod |
| CN105033507A (en) * | 2015-09-22 | 2015-11-11 | 山东大学 | Special-purpose welding rod for built-up welding of hot work die restoration |
| CN107598410A (en) * | 2017-09-27 | 2018-01-19 | 武汉铁锚焊接材料股份有限公司 | A kind of 90 feather weight high tensile steel electrodes |
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2012
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Patent Citations (6)
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Non-Patent Citations (1)
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102962607A (en) * | 2012-12-11 | 2013-03-13 | 杨文宝 | Soldering flux for cast iron welding and use method of same |
| CN103008917A (en) * | 2012-12-19 | 2013-04-03 | 四川大西洋焊接材料股份有限公司 | Ultra-supercritical novel ferrite heat-resistant steel welding electrode |
| CN103878506A (en) * | 2013-11-29 | 2014-06-25 | 中国船舶重工集团公司第七二五研究所 | Low-strength high-toughness and heat-resistant steel welding rod |
| CN103878506B (en) * | 2013-11-29 | 2016-03-09 | 中国船舶重工集团公司第七二五研究所 | A kind of low-intensity high-tenacity heat-resistant steel electrode |
| CN105033507A (en) * | 2015-09-22 | 2015-11-11 | 山东大学 | Special-purpose welding rod for built-up welding of hot work die restoration |
| CN105033507B (en) * | 2015-09-22 | 2017-03-08 | 山东大学 | A kind of welding rod special for special repairing built-up welding for hot-work die |
| CN107598410A (en) * | 2017-09-27 | 2018-01-19 | 武汉铁锚焊接材料股份有限公司 | A kind of 90 feather weight high tensile steel electrodes |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| ASS | Succession or assignment of patent right |
Owner name: JILIN PROV. POWER SCIENCE INST. CO., LTD. JINQIAO Free format text: FORMER OWNER: JILIN PROV. POWER SCIENCE INST. CO., LTD. JINQIAO WELDING MATERIAL GROUP CO., LTD., TIANJIN JILIN ELECTRIC POWER CO., LTD., BAICHENG POWER GENERATION COMPANY Effective date: 20120824 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20120824 Address after: 130021 Jilin City, Changchun province people's street, No. 4433 Applicant after: Electric Power Research Institute of Jilin Electric Power Company Applicant after: Jilin Academy of Electric Power Science Applicant after: Jinqiao Welding Material Group Co., Ltd., Tianjin Applicant after: Baicheng Power Generation Co., Ltd,Jilin Electric Power Co., Ltd. Applicant after: State Grid Corporation of China Address before: 130021 Jilin City, Changchun province people's street, No. 4433 Applicant before: Electric Power Research Institute of Jilin Electric Power Company Applicant before: Jilin Academy of Electric Power Science Applicant before: Jinqiao Welding Material Group Co., Ltd., Tianjin Applicant before: Baicheng Power Generation Co., Ltd,Jilin Electric Power Co., Ltd. |
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| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120822 |