CN101850484A - Flux-cored wire of low-temperature steel - Google Patents
Flux-cored wire of low-temperature steel Download PDFInfo
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- CN101850484A CN101850484A CN201010206649A CN201010206649A CN101850484A CN 101850484 A CN101850484 A CN 101850484A CN 201010206649 A CN201010206649 A CN 201010206649A CN 201010206649 A CN201010206649 A CN 201010206649A CN 101850484 A CN101850484 A CN 101850484A
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Abstract
The invention discloses a flux-cored wire of low-temperature steel. Powder of the flux-cored wire comprises the following chemical components in percentage by weight: 33-35 percent of titanium dioxide, 4-8 percent of silicon dioxide, 10-13 percent of silicon manganese alloy, 10-12 percent of nickel powder, 3-5 percent of ferrotitanium and 14-18 percent of medium carbon ferromanganese. The invention has the advantages of slant acidity slag system, favorable electric arc stability, little splash, easy deslagging, favorable low-temperature impact toughness, favorable low-temperature crack resistance, high efficiency and lower cost.
Description
Technical field:
The invention belongs to the metal solder field, particularly a kind of flux-cored.
Background technology:
In the prior art, to drill with derrick, to produce steel structure, comprise boats and ships such as liquified gas carries, freezing carrier, various steel construction pieces such as the production equipment of cold district, oil pipeline with ocean operations such as platforms, for preventing the brittle break of low temperature, often use low-temperature steel to build.Yet along with offshore oil, gas extraction increase day by day, and producing area expands the deep-sea cold district to by the warm area, shallow sea in past, so offshore structure will use low-temperature steel in a large number.Thereby, the flux-cored demand that makes the welding low-temperature steel use increases, and use at present flux-cored because the low-temperature impact toughness of the flux-cored wire of acid slag system and low-temperature cracking-resistance are all very poor, can't reach requirement greater than 30 joules at-40 ℃ of low-temperature impact work mean values; And the flux-cored wire welding technological properties of basic slag system is relatively poor, arc stability is poor, it is many to splash, take off the slag difficulty, efficient is low and the cost height.
Summary of the invention:
The objective of the invention is in order to overcome above deficiency, provide a kind of slant acidity slag system, arc stability good, splash less, take off that slag is easy, low-temperature impact toughness good, low-temperature cracking-resistance is good, efficient is high and lower-cost flux-cored.
The present invention is achieved through the following technical solutions: a kind of flux-cored, the degree of its medicinal powder chemical composition is: titanium dioxide: 33～35%, and silica: 4～8%, silicomangan 10～13%, nickel powder 10～12%, ferrotianium 3～5%, mid-carbon fe-mn 14～18%.
The present invention compared with prior art has the following advantages:
1, slant acidity is, has good welding technological properties.Use adds the core prescription that is used as medicine with silica, the feldspar of larger proportion, can all-position welding, and arc stability is good, splash few and take off slag easily.
2, have good low-temperature impact toughness and good crack resistance.Add nickel powder, ferrotianium, silicomangan, mid-carbon fe-mn in the composition of medicine core and carry out alloying and be Ni-Ti-B series, deposited metal-40 ℃ low-temperature impact work mean value can reach 80 joules, so low-temperature impact toughness and low-temperature cracking-resistance are all better.
3, welding efficiency height, cost is low.
The specific embodiment:
In order to deepen the understanding of the present invention, the invention will be further described below in conjunction with embodiment, and following examples only are used to explain the present invention, do not constitute the qualification to protection domain of the present invention.
The present invention is a kind of flux-cored, and the degree of the medicinal powder chemical composition of described flux-cored wire is: titanium dioxide: 33～35%, and silica: 4～8%, silicomangan 10～13%, nickel powder 10～12%, ferrotianium 3～5%, mid-carbon fe-mn 14～18%.
Embodiment one: adopt cold rolling SPCC steel band to make flux-cored wire, the chemical composition of its steel band is that carbon is 0.05%, and silicon is 0.35%, manganese is 1.2%, and sulphur is 0.01%, and phosphorus is 0.013%, nickel is 1%, and the filling rate of medicinal powder is 10～20%, and the diameter of welding wire is 1.2mm.The chemical composition that medicinal powder is formed is the titanium dioxide of 33g, the silica of 6g, the silicomangan of 13g, the nickel powder of 12g, the feldspar of 15g, the ferrotianium of 5g, the mid-carbon fe-mn of 16g.
Embodiment two: adopt cold rolling SPCC steel band to make flux-cored wire, the chemical composition of its steel band is that carbon is 0.05%, and silicon is 0.35%, manganese is 1.2%, and sulphur is 0.01%, and phosphorus is 0.013%, nickel is 1%, and the filling rate of medicinal powder is 10～20%, and the diameter of welding wire is 1.2mm.The chemical composition that medicinal powder is formed is the titanium dioxide of 34g, the silica of 5g, the silicomangan of 12g, the nickel powder of 10g, the feldspar of 10g, the ferrotianium of 4g, the mid-carbon fe-mn of 15g.
Embodiment three: adopt cold rolling SPCC steel band to make flux-cored wire, the chemical composition of its steel band is that carbon is 0.05%, and silicon is 0.35%, manganese is 1.2%, and sulphur is 0.01%, and phosphorus is 0.013%, nickel is 1%, and the filling rate of medicinal powder is 10～20%, and the diameter of welding wire is 1.2mm.The chemical composition that medicinal powder is formed is the titanium dioxide of 35g, the silica of 8g, the silicomangan of 10g, the nickel powder of 11g, the feldspar of 13g, the ferrotianium of 5g, the mid-carbon fe-mn of 18g.
When adopting this welding wire to weld, not only welding technological properties is good, arc stability, and it is few to splash, and it is easy to take off slag, and low-temperature impact toughness is good, and low-temperature cracking-resistance is good, can comprise the all-position welding in being welded in downwards.
Claims (1)
- One kind flux-cored, it is characterized in that: the degree of the medicinal powder chemical composition of described flux-cored wire is: titanium dioxide: 33～35%, silica: 4～8%, silicomangan 10～13%, nickel powder 10～12%, ferrotianium 3～5%, mid-carbon fe-mn 14～18%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010206649A CN101850484A (en) | 2010-06-23 | 2010-06-23 | Flux-cored wire of low-temperature steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010206649A CN101850484A (en) | 2010-06-23 | 2010-06-23 | Flux-cored wire of low-temperature steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101850484A true CN101850484A (en) | 2010-10-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010206649A Pending CN101850484A (en) | 2010-06-23 | 2010-06-23 | Flux-cored wire of low-temperature steel |
Country Status (1)
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| CN (1) | CN101850484A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102198575A (en) * | 2011-05-20 | 2011-09-28 | 常州九通焊材有限公司 | Acidic flux cored wire for ultralow-hydrogen low-temperature steel |
| CN102528332A (en) * | 2010-12-20 | 2012-07-04 | 昆山京群焊材科技有限公司 | High-strength low-temperature-resistant TiO2-series CO2 gas-shielded low-hydrogen type flux-cored wire |
| CN104400250A (en) * | 2014-10-13 | 2015-03-11 | 武汉铁锚焊接材料股份有限公司 | Low-temperature steel flux-cored wire |
| CN104439760A (en) * | 2014-11-21 | 2015-03-25 | 宁波隆兴焊割科技股份有限公司 | Flux-cored wire for welding low-temperature steel and preparation method thereof |
| CN104772582A (en) * | 2015-04-10 | 2015-07-15 | 河北京锐焊接材料有限公司 | High-strength low-hydrogen self-shielded flux-core wire applicable to petroleum pipeline |
| CN109719427A (en) * | 2019-03-12 | 2019-05-07 | 江苏南通瑞舶莱焊业科技有限公司 | A kind of low temperature resistant steel flux-cored wire |
-
2010
- 2010-06-23 CN CN201010206649A patent/CN101850484A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102528332A (en) * | 2010-12-20 | 2012-07-04 | 昆山京群焊材科技有限公司 | High-strength low-temperature-resistant TiO2-series CO2 gas-shielded low-hydrogen type flux-cored wire |
| CN102528332B (en) * | 2010-12-20 | 2015-02-04 | 昆山京群焊材科技有限公司 | High-strength low-temperature-resistant TiO2-series CO2 gas-shielded low-hydrogen type flux-cored wire |
| CN102198575A (en) * | 2011-05-20 | 2011-09-28 | 常州九通焊材有限公司 | Acidic flux cored wire for ultralow-hydrogen low-temperature steel |
| CN104400250A (en) * | 2014-10-13 | 2015-03-11 | 武汉铁锚焊接材料股份有限公司 | Low-temperature steel flux-cored wire |
| CN104400250B (en) * | 2014-10-13 | 2016-12-07 | 武汉铁锚焊接材料股份有限公司 | A kind of flux-cored |
| CN104439760A (en) * | 2014-11-21 | 2015-03-25 | 宁波隆兴焊割科技股份有限公司 | Flux-cored wire for welding low-temperature steel and preparation method thereof |
| CN104439760B (en) * | 2014-11-21 | 2016-08-24 | 宁波隆兴焊割科技股份有限公司 | A kind of for flux-cored wire welding low-temperature steel and preparation method thereof |
| CN104772582A (en) * | 2015-04-10 | 2015-07-15 | 河北京锐焊接材料有限公司 | High-strength low-hydrogen self-shielded flux-core wire applicable to petroleum pipeline |
| CN104772582B (en) * | 2015-04-10 | 2017-09-05 | 河北京锐焊接材料有限公司 | A kind of high intensity low hydrogen self-protection flux-cored wire suitable for petroleum pipeline |
| CN109719427A (en) * | 2019-03-12 | 2019-05-07 | 江苏南通瑞舶莱焊业科技有限公司 | A kind of low temperature resistant steel flux-cored wire |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20101006 |