CN1939649B - High-strength underwater welding electrodes - Google Patents
High-strength underwater welding electrodes Download PDFInfo
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- CN1939649B CN1939649B CN2005100180749A CN200510018074A CN1939649B CN 1939649 B CN1939649 B CN 1939649B CN 2005100180749 A CN2005100180749 A CN 2005100180749A CN 200510018074 A CN200510018074 A CN 200510018074A CN 1939649 B CN1939649 B CN 1939649B
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Abstract
A high-strength wet welding electrode for underwater welding is composed of the core made of H08E steel wire a coated surficial water-proof layer, and a coated sandwich layer containing rutile (42-54 Wt%), potash feldspar (12-20), talc (6-14), cellulose (4-12), ferromanganese (6-14), Ni powder (0-4), Fe powder (3-12) and at least one kind of Nickel powder (2-4) and Al-Mg alloy (2-4).
Description
Technical field
The invention belongs to welding material, relate generally to a kind of high-strength underwater welding electrodes.
Background technology
Wet method welding under water has that equipment is simple, cost is low and plurality of advantages such as efficiency of construction is high, with low cost, has developed multiple welding material both at home and abroad.For adapting to the welding under water of high strength steel, developed accordingly welding material under water abroad, 7018 ' S as the U.S., the HydroweldFS of Britain etc., the HydroweldFS welding rod of Britain is produced by sea God's prestige company, and specification has φ 3.2mm, φ 4.0mm, φ 5.0mm, and model is AWSE6013, welding rod intensity is more than 470Mpa, and welding technological properties is good.And domestic existing welding material under water is on the low side as underwater electrode intensity such as TS203, has only about 400Mpa, is difficult to adapt to the welding requirements under water of high strength steel, generally needs the import materials overseas on the engineering.The major technique difficulty of high-strength underwater welding electrodes is design of alloy and the selection of coating constituent and the proportioning thereof of weld metal, to guarantee to have when welding under water good processing performance and serviceability.
Summary of the invention
Purpose of the present invention promptly is to propose a kind of high-strength underwater welding electrodes, makes its intensity Rm 〉=500Mpa, and plasticity, manufacturability all satisfy offshore engineering structure requirement of welding under water.
The technology of the high-strength underwater welding electrodes that the present invention proposes constitutes: with commercially available H08E steel wire as core wire, adopt coating transition alloy elements mode, coating surface applied waterproof material, technical characterstic of the present invention are that the composition and the percentage by weight of coating is: rutile 42～54, potassic feldspar 12～20, talcum 6～14, cellulose 4～12, ferromanganese 6～14, iron powder 3～12, and nickel powder 2～4, at least a in the almag 2～4.
In the present invention, rutile (TiO
2) be one of main component of coating, it mainly acts on the slag former when being the conduct welding, and another effect is to guarantee the usability of electrode energy, particularly upright technological operation of welding downwards, rutile (TiO
2) content be lower than the upright weldering downwards of 42% o'clock welding rod operating difficulties, if its content surpasses 54%, the mechanical property of butt welded seam is had a negative impact, in the present invention rutile (TiO
2) content (weight) is controlled between 42～54%.
Among the present invention, the addition of potassic feldspar (weight) is between 12～20%, in the present invention, potassic feldspar mainly plays the effect of slag making stabilising arc in coating, be lower than at 12% o'clock at its content, and arc stability is relatively poor, addition surpasses 20%, and the butt welded seam mechanical property has adverse effect.
Among the present invention, the addition of talcum (weight) is between 6～14%, and it mainly acts on is to improve welding rod to produce the extrusion performance, also be slag former simultaneously, its addition is 6% when following, and the welding rod extrusion is poor slightly, but content surpasses at 14% o'clock, and butt welded seam forms adverse effect.
Cellulose also has and improves the extrusion performance and as the effect of gas-forming agent, can guarantee the blow force of arc when welding rod welds under water in the present invention, and its addition is 4～12%.
The adding of nickel powder mainly is in order to improve the metallurgical performance of weld seam, the plasticity and the toughness of weld seam when particularly guaranteeing to weld under water, and its addition is 0～4%.
In the present invention, the purpose one that adds iron powder is to improve the underwater restarting of welding rod, the 2nd, and for suitably improving welding efficiency, addition is between 3～12%.
In the present invention, added the small amount of aluminum magnesium alloy in the coating, purpose is to improve the metallurgical performance of weld seam, is beneficial to prevent to weld pore and crackle, and addition is between 0～4%.
A kind of high-strength underwater welding electrodes that the present invention proposes has the following advantages: high-strength underwater welding electrodes of the present invention, the tensile strength of deposited metal and banjo fixing butt jointing can reach more than the 530Mpa when welding under sea conditions, and banjo fixing butt jointing clod wash angle still remains intact when being 180 °.
When underwater welding electrodes of the present invention welded under water, the starting the arc was easy, and 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.
Welding rod of the present invention has good cost performance, and low cost of manufacture helps reducing engineering cost.
The specific embodiment
Provide the embodiment of the invention, but do not constitute any limitation of the invention:
Embodiment 1:
Adopt commercially available H08E steel wire as core wire, the outer coating of coating waterproof material, waterproof material can adopt green grass or young crops lacquer commonly used, paraffin wax etc., and binding agent can adopt potassium-sodium water glass or sodium silicate etc., and it is the binding agent that generally adopts.Among this embodiment, binding agent adopts blue or green lacquer, makes the coating binding agent with potassium-sodium water glass, and the component of coating and percentage by weight thereof are: rutile 42, potassic feldspar 20, talcum 6, cellulose 8, almag 4, ferromanganese 14, nickel powder 0, iron powder 6.
Embodiment 2:
Adopt commercially available H08E steel wire as core wire, the blue or green lacquer of the outer coating of coating waterproof material is made the coating binding agent with potassium-sodium water glass, and the component of coating and percentage by weight thereof are: rutile 48, potassic feldspar 15, talcum 8, cellulose 12, almag 2, ferromanganese 8, nickel powder 4, iron powder 3.
Embodiment 3:
Adopt commercially available H08E steel wire as core wire, the blue or green lacquer of the outer coating of coating waterproof material is made the coating binding agent with potassium-sodium water glass, and the component of coating and percentage by weight thereof are: rutile 54, potassic feldspar 12, talcum 10, cellulose 4, almag 0, ferromanganese 6, nickel powder 2, iron powder 12.
The embodiment effect
Claims (1)
1. high-strength underwater welding electrodes, adopt commercially available H08E steel wire as core wire, coating surface applied waterproof material is characterized in that: the component of coating and percentage by weight thereof are: rutile 42～54, potassic feldspar 12～20, talcum 6～14, cellulose 4～12, ferromanganese 6～14, iron powder 3～12, and nickel powder 2～4, at least a in the almag 2～4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005100180749A CN1939649B (en) | 2005-09-30 | 2005-09-30 | High-strength underwater welding electrodes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005100180749A CN1939649B (en) | 2005-09-30 | 2005-09-30 | High-strength underwater welding electrodes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1939649A CN1939649A (en) | 2007-04-04 |
| CN1939649B true CN1939649B (en) | 2011-10-12 |
Family
ID=37958315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2005100180749A Expired - Fee Related CN1939649B (en) | 2005-09-30 | 2005-09-30 | High-strength underwater welding electrodes |
Country Status (1)
| Country | Link |
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| CN (1) | CN1939649B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102699559B (en) * | 2012-01-12 | 2015-05-06 | 柳吉兰 | Method for manufacturing underwater manual quick cutting material |
| CN102699578A (en) * | 2012-06-11 | 2012-10-03 | 天津大桥龙兴焊接材料有限公司 | High-toughness high-strength steel welding rod for 50-kilogram grade all-position welding |
| CN102773634B (en) * | 2012-07-16 | 2014-10-15 | 中国船舶重工集团公司第七二五研究所 | Welding rod for wet underwater welding of low alloy steel |
| CN103084759B (en) * | 2013-02-27 | 2015-09-16 | 哈尔滨工业大学（威海） | A kind of underwater wet welding stainless steel 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 |
| CN108687424A (en) * | 2017-04-10 | 2018-10-23 | 中国人民解放军军械工程学院 | A kind of portable underwater wet method is without electricity welding method |
| CN107755855B (en) * | 2017-11-21 | 2020-03-31 | 山东省科学院海洋仪器仪表研究所 | Oxygen-free underwater cutting electrode and underwater steel cutting 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 |
| CN109434323B (en) * | 2018-11-16 | 2021-02-23 | 山东省科学院海洋仪器仪表研究所 | Welding rod for underwater wet welding of low alloy steel |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2006610A1 (en) * | 1970-02-13 | 1971-08-26 | British Oxygen Co Ltd | Coated electrode for arc welding under -water |
| US4203024A (en) * | 1975-07-24 | 1980-05-13 | Institut Elektrosvarki Imeni E.O. Patona Akademii Nauk Ukrainskoi Ssr | Flux-cored electrode for welding steels in carbon dioxide |
| CN1054924A (en) * | 1990-03-22 | 1991-10-02 | 太原工业大学 | Moisture resistant austenitic stainless steel welding electrode |
| WO1996002332A1 (en) * | 1994-07-19 | 1996-02-01 | Metaltone Usa, Inc. | Water resistant welding rod |
-
2005
- 2005-09-30 CN CN2005100180749A patent/CN1939649B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2006610A1 (en) * | 1970-02-13 | 1971-08-26 | British Oxygen Co Ltd | Coated electrode for arc welding under -water |
| US4203024A (en) * | 1975-07-24 | 1980-05-13 | Institut Elektrosvarki Imeni E.O. Patona Akademii Nauk Ukrainskoi Ssr | Flux-cored electrode for welding steels in carbon dioxide |
| CN1054924A (en) * | 1990-03-22 | 1991-10-02 | 太原工业大学 | Moisture resistant austenitic stainless steel welding electrode |
| WO1996002332A1 (en) * | 1994-07-19 | 1996-02-01 | Metaltone Usa, Inc. | Water resistant welding rod |
Non-Patent Citations (4)
| 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22 2.2002,22(2),155-158. |
| 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22 2.2002,22(2),155-158. * |
| 沈晓勤 等.湿法深水焊条的研制.焊接 10.2000,(10),19-23. |
| 沈晓勤 等.湿法深水焊条的研制.焊接 10.2000,(10),19-23. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1939649A (en) | 2007-04-04 |
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