CN102773634A - Welding rod for wet underwater welding of low alloy steel - Google Patents
Welding rod for wet underwater welding of low alloy steel Download PDFInfo
- Publication number
- CN102773634A CN102773634A CN2012102452201A CN201210245220A CN102773634A CN 102773634 A CN102773634 A CN 102773634A CN 2012102452201 A CN2012102452201 A CN 2012102452201A CN 201210245220 A CN201210245220 A CN 201210245220A CN 102773634 A CN102773634 A CN 102773634A
- Authority
- CN
- China
- Prior art keywords
- welding
- welding rod
- coating
- alloy steel
- check
- 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.)
- Granted
Links
Landscapes
- Nonmetallic Welding Materials (AREA)
Abstract
The invention introduces a welding rod for wet underwater welding of low alloy steel, which adopts a commercially available H08E steel wire as welding core, adopts coating transition alloy elements, adopts water glass as binder, and has waterproof insulation varnish coated on the surface of the coating. The coating contains the following solid parts (by weight): 40-48% of rutile, 5-8% of marble, 15-20% of potassium feldspar, 5-10% of microcrystalline cellulose, 6-10% of titanium dioxide, 8-12% of high carbon ferromanganese and 6-12% of iron powder. When the inventive welding rod is used for low alloy steel welding, deposited metal tensile strength can reach 460MPa or above; for welding in water, arcing is easy, electric arc burning is stable, arc re-striking performance is good, deslagging is easy, and the welded seam is good in appearance; the waterproof and insulating performance of the coating are good, and the coating is unlikely to deteriorate and fall off in case of long-time soaking; and the welding rod production process is simple and the cost is low.
Description
Technical field
The present invention relates to a kind of field of welding material technology, particularly a kind ofly be used for the welding rod that the low-alloy steel wet method is welded under water.
Background technology
It is indispensable important process means in the installation, maintenance construction of Underwater Engineering structure that wet method is welded under water.They often are used in the work progress of ocean engineerings such as marine salvage, marine energy, marine mining and large-scale underwater facility.During " 12 ", country will continue to strengthen dynamics of investment aspect ocean engineering and port facilities, to wet method under water the demand of welding material also with increasing.The domestic welding electrodes that is used for underwater construction mainly contains TS202, the TS202A that TS203 and middle ship heavy industry 725 are developed at present.Wherein the intensity rank of TS202, TS203 and TS202A welding rod is lower, is applicable to that mainly the welding under water of Q235 and mild steel is used.And weld the domestic suitable welding material that also do not have at present under water for the low-alloy steel of the higher general structure of intensity rank.External wet method welding material under water mainly contains the Hydroweld FS underwater electrode of Britain Hydroweld company development and production; 7018 ' S underwater electrode of U.S.'s development and production; Above welding rod all can be used for the welding under water of low-alloy steel, but price costs an arm and a leg more than 500,000 yuan/ton.The domestic granted patent that relates to has: (application number: 200810141292), the welding rod that this patent is mentioned is made binding agent with phenolic resins to a kind of wet method underwater electrode, and intensity is lower; The external related patent U.S. Patent No. that relates to underwater electrode that do not retrieve.
Summary of the invention
Technical problem to be solved by this invention provides a kind of welding rod that the low-alloy steel wet method is welded that is used under water, and when this welding rod was used for low-alloy steel and welds under water, water resistance and insulating properties were good; Welding technological properties is excellent, deposited metal tensile strength >=460MPa, but all-position welding; Be specially adapted to upright welding downwards; Satisfy requirement of welding under the general constitution water of ocean engineering, and production technology is reasonable, manufacturing cost is lower.
For the purpose that realizes solving the problems of the technologies described above, the present invention has adopted following technical scheme:
A kind of welding rod that the low-alloy steel wet method is welded under water that is used for of the present invention comprises that the H08E steel wire that adopts the commercially available GB/T3429 of satisfying requirement is as core wire; Adopt the coating transition alloy elements; Adopt light water glass as binding agent, use common welding rod extrusion production line extrusion to become welding rod; Last at the commercially available waterproof insulation varnish of coating surface-coated one deck, it is characterized in that: the solid of coating is formed and percentage by weight: rutile 40 ~ 48%, marble 5 ~ 8%; Potassic feldspar 15 ~ 20%, microcrystalline cellulose 5 ~ 10%, titanium white powder 6 ~ 10%; High carbon ferromanganese 8 ~ 12%, iron powder 6 ~ 12%.
Concrete, described microcrystalline cellulose is that native cellulose hydrolysis in acid medium makes molecular weight be reduced to the particulate powder product of certain scope.Microcrystalline cellulose is can the non-fibrous particulate of free-pouring crystallization.
Wherein, described high carbon ferromanganese: Mn>=75%, C≤7.5%, Si≤1.5%.
Further concrete, the specification requirement of described coating raw material is following: rutile: TiO
2>=95%, S≤0.03%, P≤0.03%, 100% several granularities of looking over so as to check are 80 orders; Marble: CaCO
3>=95%, S≤0.03%, P≤0.03%, 100% several granularities of looking over so as to check are 60 orders; Potassic feldspar: SiO
2: 63 ~ 73%, Al
2O
3: 15 ~ 24%, K
2O+Na
2O>=12%, K
2O>=8%, S≤0.04%, P≤0.04%; Microcrystalline cellulose: cellulose>=87%: titanium white powder: TiO
2>=98%, S≤0.05%, P≤0.05%, 100% several granularities of looking over so as to check are 200 orders; High carbon ferromanganese: Mn>=75%, C≤7.5%, Si≤1.5%, S≤0.03%, P≤0.20%, 100% several granularities of looking over so as to check are 40 orders; Iron powder: Fe>=98%, Mn≤0.45%, S≤0.003%, P≤0.013%, 100% several granularities of looking over so as to check are 40 orders.
100% of this patent several granularities of looking over so as to check, be meant raw material can 100% can be through the sieve of this order number.
Among the present invention, rutile is one of main constituent in the coating, and its adding scope is 40%～48%.In this scope, can guarantee welding arc stablility burning under water.When rutile was lower than 40%, the arc stability variation can't be welded in the vertical position of welding.When the rutile addition surpassed 48%, welding arc can be shaken, drift about, and welding fabrication worsens, and the mechanical property of butt welded seam causes adverse effect simultaneously.
Marmorean addition is 5 ~ 8% among the present invention, and marble belongs to gas making, slag former on the one hand, can also heighten the viscosity of slag on the other hand, and is highly beneficial to vertical position welding.Marmorean content is crossed when hanging down, and can't play the effect that improves viscosity coefficient of dross, and content surpasses at 8% o'clock, and speed of welding is slack-off, and appearance of weld is poor.
Have good plasticity and elasticity when a certain amount of potassic feldspar of adding can make the welding rod extrusion among the present invention, potassic feldspar also has the effect of stabilising arc simultaneously.But potassic feldspar content surpasses at 20% o'clock, and viscosity coefficient of dross significantly descends, and the appearance of weld variation is taken off the slag difficulty.In order to improve welding rod extrusion processing performance, consider the adverse effect when potassic feldspar is too much simultaneously, its suitable addition scope is 15 ~ 20%.
Microcrystalline cellulose mainly is gas making, stabilising arc, increases the blow force of arc when welding under water, and can improve the extrusion performance of welding rod.Suitable addition is 5 ~ 10%.
The addition of titanium white powder is controlled at 6 ~ 10% among the present invention, and titanium white powder can make coating have good plasticity, improves welding rod extrusion technology, but consumption is unsuitable too much, otherwise not only cost is high but also can reduce the plasticity of weld seam, causes weld cracking.
High carbon ferromanganese also has certain alloying effect mainly as deoxidier.In addition, the deoxygenation of manganese belongs to exothermic reaction, improves bath temperature, helps metallurgical reaction.When addition was too much, deoxidation property caused the face of weld deterioration excessively by force.Otherwise high carbon ferromanganese is very few, owing to the molten bath heat cause inadequately mobile poor, unfavorable to welding operation and metallurgical reaction, also can cause the reduction of weld seam mechanical performance simultaneously.
The purpose that adds iron powder among the present invention is to improve the underwater restarting property of welding rod and improve welding efficiency.Addition surpasses at 12% o'clock, can make the extrusion property and the welding technological properties variation of welding rod, and the diluting effect to other element also can strengthen simultaneously.
Through adopting technique scheme, of the present inventionly be used for the welding rod that the low-alloy steel wet method welds under water and have following characteristics:
When (1) being used for the low-alloy steel welding, deposited metal tensile strength can reach more than the 460MPa.
When (2) in seawater or fresh water, welding, the starting the arc is easy, arc burning is stable, and restarting is functional, and it is easy to take off slag, and appearance of weld is attractive in appearance, has good welding technological properties under water.
(3) the welding rod waterproof coating has excellent waterproof insulation performance, and after long-time the immersion, coating does not take place rotten and comes off, and still can carry out welding operation in seawater or fresh water, and obtains satisfied seam organization.
(4) the welding rod production technology is simple, and cost is lower.
The specific embodiment
Below in conjunction with embodiment this patent is further explained.But the protection domain of this patent is not limited to concrete embodiment.Each embodiment all adopts the H08E steel wire as core wire; Adopt solid content 25% light water glass as binding agent, use common welding rod extrusion production line extrusion to become welding rod; At last at coating surface-coated waterproof insulation varnish.The coating raw material meets the technical scheme requirement.High carbon ferromanganese: Mn is 79%.
Table 1 embodiment 1-3 coating is formed.
| The raw material title | Rutile | Marble | Potassic feldspar | Microcrystalline cellulose | Titanium white powder | High carbon ferromanganese | Iron powder | Add up to |
| Embodiment 1 | 42% | 8% | 16% | 6% | 10% | 12% | 6% | 100% |
| Embodiment 2 | 40% | 7% | 15% | 10% | 7% | 9% | 12% | 100% |
| Embodiment 3 | 48% | 5% | 20% | 5% | 6% | 8% | 8% | 100% |
Implementation result is shown in table 2 and the table 3.
The deposited metal composition of table 2 embodiment (%)
| Element | C | Mn | Si | S | P |
| Embodiment 1 | 0.106 | 0.387 | 0.316 | 0.014 | 0.026 |
| Embodiment 2 | 0.098 | 0.323 | 0.298 | 0.015 | 0.020 |
| Embodiment 3 | 0.122 | 0.312 | 0.348 | 0.017 | 0.021 |
The deposited metal mechanical property of table 3 embodiment
Claims (3)
1. one kind is used for the welding rod that the low-alloy steel wet method is welded under water, comprises that the H08E steel wire that adopts the commercially available GB/T3429 of satisfying requirement is as core wire; Adopt the coating transition alloy elements; Adopt light water glass as binding agent, use common welding rod extrusion production line extrusion to become welding rod; Last at the commercially available waterproof insulation varnish of coating surface-coated one deck, it is characterized in that: the solid of coating is formed and percentage by weight: rutile 40 ~ 48%, marble 5 ~ 8%; Potassic feldspar 15 ~ 20%, microcrystalline cellulose 5 ~ 10%, titanium white powder 6 ~ 10%; High carbon ferromanganese 8 ~ 12%, iron powder 6 ~ 12%.
2. be used for the welding rod that the low-alloy steel wet method is welded under water according to claim 1 is said, it is characterized in that: described high carbon ferromanganese Mn>=75%, C≤7.5%, Si≤1.5%.
3. be used for the welding rod that the low-alloy steel wet method is welded under water according to claim 1 is said, it is characterized in that: the specification requirement of described coating raw material is following: rutile: TiO
2>=95%, S≤0.03%, P≤0.03%, 100% several granularities of looking over so as to check are 80 orders; Marble: CaCO
3>=95%, S≤0.03%, P≤0.03%, 100% several granularities of looking over so as to check are 60 orders; Potassic feldspar: SiO
2: 63 ~ 73%, Al
2O
3: 15 ~ 24%, K
2O+Na
2O>=12%, K
2O>=8%, S≤0.04%, P≤0.04%; Microcrystalline cellulose: cellulose>=87%: titanium white powder: TiO
2>=98%, S≤0.05%, P≤0.05%, 100% several granularities of looking over so as to check are 200 orders; High carbon ferromanganese: Mn>=75%, C≤7.5%, Si≤1.5%, S≤0.03%, P≤0.20%, 100% several granularities of looking over so as to check are 40 orders; Iron powder: Fe>=98%, Mn≤0.45%, S≤0.003%, P≤0.013%, 100% several granularities of looking over so as to check are 40 orders.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210245220.1A CN102773634B (en) | 2012-07-16 | 2012-07-16 | Welding rod for wet underwater welding of low alloy steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210245220.1A CN102773634B (en) | 2012-07-16 | 2012-07-16 | Welding rod for wet underwater welding of low alloy steel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102773634A true CN102773634A (en) | 2012-11-14 |
| CN102773634B CN102773634B (en) | 2014-10-15 |
Family
ID=47118858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210245220.1A Expired - Fee Related CN102773634B (en) | 2012-07-16 | 2012-07-16 | Welding rod for wet underwater welding of low alloy steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102773634B (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103240545A (en) * | 2013-05-30 | 2013-08-14 | 湖南工业大学 | Special A101 stainless steel welding electrode for decoration |
| CN103317261A (en) * | 2013-06-04 | 2013-09-25 | 华南理工大学 | Low hydrogen type deep water wet welding electrode |
| CN103447717A (en) * | 2013-07-30 | 2013-12-18 | 中国船舶重工集团公司第七二五研究所 | Low-alloy steel covered electrode for low-temperature steel welding |
| CN104002060A (en) * | 2014-06-18 | 2014-08-27 | 营口公牛机械设备有限公司 | Welding electrode |
| CN106514051A (en) * | 2016-12-08 | 2017-03-22 | 河海大学常州校区 | Underwater welding rod and manufacturing method thereof |
| CN106583884A (en) * | 2016-11-18 | 2017-04-26 | 中车齐齐哈尔车辆有限公司 | Repair welding method |
| CN108213760A (en) * | 2018-01-23 | 2018-06-29 | 刘希福 | Oxygen imderwater cutting item is exempted from a kind of manual metal-arc welding |
| CN109434323A (en) * | 2018-11-16 | 2019-03-08 | 山东省科学院海洋仪器仪表研究所 | A kind of low-alloy steel underwater wet welding welding rod |
| CN109530974A (en) * | 2018-12-29 | 2019-03-29 | 天津市金桥焊材集团有限公司 | A kind of high performance rutile-type carbon steel |
| CN115625449A (en) * | 2022-12-08 | 2023-01-20 | 山东聚力焊接材料有限公司 | High-cellulose welding rod and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1939649A (en) * | 2005-09-30 | 2007-04-04 | 中国船舶重工集团公司第七二五研究所 | High-strength underwater welding electrodes |
| CN101081466A (en) * | 2006-06-01 | 2007-12-05 | 天津市雅联科技发展有限公司 | Novel welding material |
| CN101347873A (en) * | 2008-09-05 | 2009-01-21 | 中国船舶重工集团公司第七二五研究所 | Low-cost wet method underwater welding rods |
| CN101817130A (en) * | 2010-04-06 | 2010-09-01 | 天津大桥焊材集团有限公司 | Fire and weather resistant steel welding rod at the level of 50 kilograms and preparation method thereof |
-
2012
- 2012-07-16 CN CN201210245220.1A patent/CN102773634B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1939649A (en) * | 2005-09-30 | 2007-04-04 | 中国船舶重工集团公司第七二五研究所 | High-strength underwater welding electrodes |
| CN101081466A (en) * | 2006-06-01 | 2007-12-05 | 天津市雅联科技发展有限公司 | Novel welding material |
| CN101347873A (en) * | 2008-09-05 | 2009-01-21 | 中国船舶重工集团公司第七二五研究所 | Low-cost wet method underwater welding rods |
| CN101817130A (en) * | 2010-04-06 | 2010-09-01 | 天津大桥焊材集团有限公司 | Fire and weather resistant steel welding rod at the level of 50 kilograms and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 吴安如等: "湿法水下焊接的冶金特点及水下焊条设计", 《西安工业学院学报》 * |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103240545A (en) * | 2013-05-30 | 2013-08-14 | 湖南工业大学 | Special A101 stainless steel welding electrode for decoration |
| CN103317261A (en) * | 2013-06-04 | 2013-09-25 | 华南理工大学 | Low hydrogen type deep water wet welding electrode |
| CN103317261B (en) * | 2013-06-04 | 2015-07-29 | 华南理工大学 | A kind of low hydrogen type deep water welding electrodes |
| CN103447717A (en) * | 2013-07-30 | 2013-12-18 | 中国船舶重工集团公司第七二五研究所 | Low-alloy steel covered electrode for low-temperature steel welding |
| CN103447717B (en) * | 2013-07-30 | 2016-03-09 | 中国船舶重工集团公司第七二五研究所 | A kind of low-temperature steel welding low-alloy steel electrode |
| CN104002060A (en) * | 2014-06-18 | 2014-08-27 | 营口公牛机械设备有限公司 | Welding electrode |
| CN106583884B (en) * | 2016-11-18 | 2020-02-04 | 中车齐齐哈尔车辆有限公司 | Repair welding method |
| CN106583884A (en) * | 2016-11-18 | 2017-04-26 | 中车齐齐哈尔车辆有限公司 | Repair welding method |
| CN106514051A (en) * | 2016-12-08 | 2017-03-22 | 河海大学常州校区 | Underwater welding rod and manufacturing method thereof |
| CN108213760A (en) * | 2018-01-23 | 2018-06-29 | 刘希福 | Oxygen imderwater cutting item is exempted from a kind of manual metal-arc welding |
| CN109434323A (en) * | 2018-11-16 | 2019-03-08 | 山东省科学院海洋仪器仪表研究所 | A kind of low-alloy steel underwater wet welding welding rod |
| CN109530974A (en) * | 2018-12-29 | 2019-03-29 | 天津市金桥焊材集团有限公司 | A kind of high performance rutile-type carbon steel |
| CN109530974B (en) * | 2018-12-29 | 2021-01-26 | 天津市金桥焊材集团股份有限公司 | High-performance rutile type carbon steel welding rod |
| CN115625449A (en) * | 2022-12-08 | 2023-01-20 | 山东聚力焊接材料有限公司 | High-cellulose welding rod and application thereof |
| CN115625449B (en) * | 2022-12-08 | 2023-03-10 | 山东聚力焊接材料有限公司 | High-cellulose welding rod and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102773634B (en) | 2014-10-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102773634B (en) | Welding rod for wet underwater welding of low alloy steel | |
| CN103056549B (en) | Alkaline CO2 gas protection dilute alloy heat resistant steel flux-cored wire | |
| CN107803608B (en) | Martensite precipitation hardening stainless steel welding rod and preparation method and application thereof | |
| CN104526188B (en) | A kind of can the seamless flux-cored wire of postwelding stress-removal heat treatment | |
| CN103934592B (en) | A core wire for up to 55kg weathering steel welding rod, coating and welding rod thereof and preparation method | |
| CN103737198B (en) | A kind of stainless steel welded gas-shielded flux-cored wire | |
| CN108971795B (en) | Electric welding rod for high-manganese austenite low-temperature steel | |
| CN110653518B (en) | Seamless flux-cored wire for high-manganese low-temperature steel of LNG storage tank and preparation method | |
| CN101323058A (en) | Acidic coating super two-phase stainless steel electrode | |
| CN103692110A (en) | Gas-shielded flux-cored wire for maritime engineering | |
| CN110293332B (en) | High-strength weather-proof and fire-resistant steel welding alkaline flux-cored wire | |
| CN106624460B (en) | Marine low-temperature steel submerged-arc welding sintered flux | |
| CN107283084B (en) | A kind of marine atmosphere corrosion-resisting steel submerged arc flux-cored wire | |
| CN105033503A (en) | Welding rod for welding corrosion-resisting steel | |
| CN102554499A (en) | Ultralow-temperature high-corrosion-resistance welding rod | |
| CN103273216B (en) | A kind of Cellulose-Congo red medium | |
| CN113414519B (en) | ENi6620 nickel-based welding rod for alternating current and preparation method and welding method thereof | |
| CN103878500A (en) | Submerged-arc welding solid-core welding wire with excellent low-temperature toughness and for high heat input welding | |
| CN103273213A (en) | High-strength high-toughness submerged arc welding wires | |
| CN112975208A (en) | Metal-cored welding wire for heat-resistant stainless steel submerged arc welding for magnesium smelting reduction tank | |
| CN106695170B (en) | Stainless steel welded gas-shielded flux-cored wire | |
| CN113579549B (en) | Metal powder core type flux-cored wire | |
| CN102974958B (en) | Welding rod matched with steel for hot galvanizing pot | |
| CN106181128A (en) | A kind of seamless without copper plated flux-cored wires | |
| CN110202290B (en) | Flux-cored wire for high-strength weathering steel and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141015 Termination date: 20210716 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |