CN101450427A - Metal powder type flux-cored wire for primer steel-plate corner welding - Google Patents
Metal powder type flux-cored wire for primer steel-plate corner welding Download PDFInfo
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- CN101450427A CN101450427A CNA200810164233XA CN200810164233A CN101450427A CN 101450427 A CN101450427 A CN 101450427A CN A200810164233X A CNA200810164233X A CN A200810164233XA CN 200810164233 A CN200810164233 A CN 200810164233A CN 101450427 A CN101450427 A CN 101450427A
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Abstract
The invention discloses a metal powder flux cored wire for corner welding of a primer coating steel plate. Flux cored powder of the flux cored wire is formed by the following components by weight percentage: 5 to 8 percent of rutile, 28 to 31 percent of silicon-manganese alloy, 30 to 41 percent of ferrous powder, 1 to 2 percent of nickel powder, 7 to 9 percent of cryolite, 9 to 11 percent of mid-carbon ferromanganese, 5 to 7 percent of aluminum-magnesium alloy and a to 2 percent of ferrotitanium. During the welding, weldments of the flux cored wire has no pits and air holes, and the welding speed is not necessary to be reduced; in addition, during use, the flux cored wire has the advantages of less generation quality of welding seam surface slag, small welding splash, namely good welding seam forming, and less welding dust.
Description
Technical field
The present invention relates to a kind of welding material of metal, particularly a kind of metal powder type flux-cored wire for primer steel-plate corner welding.
Background technology
In recent years, along with the extensive use of flux-cored wire, in the fillet-welded joint of welded unit, adopt flux-cored wire to carry out the very extensive of semi-automatic welding in industries such as boats and ships, bridges.But, being generally and preventing that steel plate from getting rusty, need at the steel plate shop primer, wherein is inorganic zinc primer and phosphoric acid priming paint mostly.When using general rutile slag type flux-cored wire to carry out the horizontal fillet welding of priming paint steel plate, weld defect such as pit, air holes are arranged all, the deposition rate and the deposition efficiency of flux-cored wire are on the low side.
In order to prevent the generation of these weld defects, be necessary when welding, to remove priming paint or reduce speed of welding, yet these methods reduce labor productivity, improve production cost, and many, the spatter of the generation of face of weld slag causes greatly that appearance of weld is poor, weld fumes is many in use.
Summary of the invention
The technical problem to be solved in the present invention is, at above-mentioned the deficiencies in the prior art, weldment did not have pit, pore when a kind of welding was provided, do not need to reduce speed of welding again, and the metal powder type flux-cored wire for primer steel-plate corner welding that generation is few, the little appearance of weld of spatter is good, weld fumes is few of face of weld slag when using.
In order to solve the problems of the technologies described above, technical scheme of the present invention is: a kind of metal powder type flux-cored wire for primer steel-plate corner welding, its medicine core powder is mixed by each component of following percentage by weight: rutile 5%～8%, silicomangan 28%～31%, iron powder 30%～41%, nickel powder 1%～2%, ice crystal 7%～9%, mid-carbon fe-mn 9%～11%, almag 5%～7%, ferrotianium 1%～2%.
As preferably, the percentage by weight of each component of above-mentioned medicine core powder is a rutile 6.7%, silicomangan 30%, iron powder 36.3%, nickel powder 1.6%, ice crystal 8.3%, mid-carbon fe-mn 9.8%, almag 5.7%, ferrotianium 1.6%.
Rutile: it contains TiO
2Greater than 95%, to use as slag former, the addition of strict control slag former can attenuate postwelding skull, helps the effusion of gas in the molten bath, reduces pore quantity, improves the deposition rate of welding wire.
Silicomangan: its silicon content is 20%～25%, adds an amount of element silicon in the prescription and helps to improve appearance of weld.
Iron powder: it contains Fe amount and is not less than 98%, and the addition of iron powder increases can help to improve deposition efficiency, the pore that occurs when reducing on band priming paint steel plate high speed fillet welding and the quantity of pit.
Nickel powder: its nickel content is not less than 99%, to the excessive alloying element of weld metal.
Ice crystal: it contains the cryolite amount and is not less than 98%, and the adding of fluoride can reduce the dividing potential drop of hydrogen in the arc zone, the appearance of opposing pore, and the existence of sodium element can also the stable arc burning.
Mid-carbon fe-mn: the content of its manganese is 79%～85%, adds an amount of mid-carbon fe-mn in the prescription and helps to improve toughness and plasticity.
The magnalium magnesium alloy: the percentage by weight of its aluminium is 48%～51%, and an amount of magnadure of adding helps to reduce the oxygen content in the weld metal in the prescription, is beneficial to the improvement of weld metal toughness.
Ferrotianium: the percentage by weight of its titanium is 20%～22%, and an amount of titanium elements of adding helps to reduce the oxygen content in the weld metal in the prescription, is beneficial to the improvement of weld metal toughness.
The particle size of above-mentioned each component of medicine core powder all satisfies whole mistake 60～70 mesh sieves, and suitable medicine core powder particles helps composition and mixes, and it is little to splash during welding.
Preparation method of the present invention adopts prior art, and its manufacturing process and step are as follows:
1. press formula rate preparation medicinal powder of the present invention;
2. steel band is rolled into U-shaped, in U-lag, add the medicinal powder of the present invention that accounts for welding wire gross weight 16%～18%;
3. adopt forming machine that U-lag is healed up, make the medicinal powder parcel wherein, pursue road drawing, tube reducing through wire drawing machine then, make its diameter reach 1.2mm at last, obtain final products.
The present invention compared with prior art has following advantage:
1. flux-cored wire of the present invention has higher deposition rate and bigger deposition efficiency, and when welding weldment do not have pit, pore.
2. flux-cored wire of the present invention in use, the generation of face of weld slag is few, spatter is little, appearance of weld is good and weld fumes is few.
3. flux-cored wire of the present invention in use can continuous welding, does not need to reduce speed of welding and has improved welding efficiency, can also adjust each set of dispense ratio of medicine core powder according to the welding needs flexibly, uses more convenient.
The specific embodiment
Further describe the present invention below by specific embodiment, but the present invention not only is confined to following examples:
Embodiment 1
Select the mild steel steel band of 0.8 * 12mm (thick * wide) for use, by forming machine it is rolled into U-shaped, get rutile 65 grams (6.7wt%) then, silicomangan 290 grams (30wt%), iron powder 350 grams (36.3wt%), nickel powder 15 grams (1.6wt%), ice crystal 80 grams (8.3wt%), mid-carbon fe-mn 95 grams (9.8wt%), almag 55 grams (5.7wt%), ferrotianium 15 grams (1.6wt%) (granularity of the powder of getting is for passing through 60 purpose sieves); The various powder of get are put into mixed powder machine mixed 40 minutes, then mixed-powder is added in the U-lag of mild-carbon steel strip, filling rate is 17%; U-lag is healed up, make the medicinal powder parcel wherein; Pursue road drawing, tube reducing by wire drawing machine from diameter 2.35mm then, make its diameter reach 1.2mm at last and make flux-cored wire of the present invention.
With flux-cored wire of the present invention at CO
2Weld use under the gas shield, welding current 180～220A, weldingvoltage 28～30V, speed of welding 0.6m/min, throughput 191/min, this welding wire is good at primer steel-plate fillet welding test welding effect.
Embodiment 2
Select the mild steel steel band of 0.8 * 12mm (thick * wide) for use, by forming machine it is rolled into U-shaped, get rutile 55 grams (5.5wt%) then, silicomangan 280 grams (28wt%), iron powder 400 grams (40wt%), nickel powder 15 grams (1.5wt%), ice crystal 72 grams (7.2wt%), mid-carbon fe-mn 100 grams (10wt%), almag 58 grams (5.8wt%), ferrotianium 20 grams (2wt%) (granularity of the powder of getting is for passing through 60 purpose sieves); The various powders of get are put into mixed powder machine mixed 40 minutes, then mixed-powder is added in the U-lag of mild-carbon steel strip, filling rate is 16%; U-lag is healed up, make the medicinal powder parcel wherein; Pursue road drawing, tube reducing by wire drawing machine from diameter 2.35mm then, make its diameter reach 1.2mm at last and make flux-cored wire of the present invention.
With flux-cored wire of the present invention at CO
2Weld use under the gas shield, welding current 180～220A, weldingvoltage 28～30V, speed of welding 0.6m/min, throughput 191/min, this welding wire is good at primer steel-plate fillet welding test welding effect.
Embodiment 3
Select the mild steel steel band of 0.8 * 12mm (thick * wide) for use, by forming machine it is rolled into U-shaped, get rutile 80 grams (8wt%) then, silicomangan 290 grams (29wt%), iron powder 340 grams (34wt%), nickel powder 20 grams (2wt%), ice crystal 90 grams (9wt%), mid-carbon fe-mn 90 grams (9wt%), almag 70 grams (7wt%), ferrotianium 20 grams (2wt%) (granularity of the powder of getting is for passing through 60 purpose sieves); The various powder of get are put into mixed powder machine mixed 40 minutes, then mixed-powder is added in the U-lag of mild-carbon steel strip, filling rate is 18%; U-lag is healed up, make the medicinal powder parcel wherein; Pursue road drawing, tube reducing by wire drawing machine from diameter 2.35mm then, make its diameter reach 1.2mm at last and make flux-cored wire of the present invention.
With flux-cored wire of the present invention at CO
2Weld use under the gas shield, welding current 180～220A, weldingvoltage 28～30V, speed of welding 0.6m/min, throughput 191/min, this welding wire is good at primer steel-plate fillet welding test welding effect.
Claims (4)
1. metal powder type flux-cored wire for primer steel-plate corner welding, its medicine core powder is mixed by each component of following percentage by weight: rutile 5%～8%, silicomangan 28%～31%, iron powder 30%～41%, nickel powder 1%～2%, ice crystal 7%～9%, mid-carbon fe-mn 9%～11%, almag 5%～7%, ferrotianium 1%～2%.
2. metal powder type flux-cored wire for primer steel-plate corner welding according to claim 1, it is characterized in that: the percentage by weight of each component of described medicine core powder is a rutile 6.7%, silicomangan 30%, iron powder 36.3%, nickel powder 1.6%, ice crystal 8.3%, mid-carbon fe-mn 9.8%, almag 5.7%, ferrotianium 1.6%.
3. metal powder type flux-cored wire for primer steel-plate corner welding according to claim 1 and 2 is characterized in that: described rutile contains TiO
2Greater than 95%; Described silicomangan, the content of silicon are 20～25%; Described iron powder, the content of iron is not less than 98%; Described nickel powder, the content of nickel is not less than 99%; Described ice crystal, the content of cryolite is not less than 98%; Described mid-carbon fe-mn, the content of manganese are 79-85%; Described magnalium magnesium alloy, the content of aluminium are 48%～51%; Described ferrotianium, the content of titanium are 20～22%.
4. metal powder type flux-cored wire for primer steel-plate corner welding according to claim 1 and 2 is characterized in that: the granularity of described each component of medicine core powder is for can pass through 60～70 mesh sieve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810164233XA CN101450427B (en) | 2008-12-31 | 2008-12-31 | Metal powder type flux-cored wire for primer steel-plate corner welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810164233XA CN101450427B (en) | 2008-12-31 | 2008-12-31 | Metal powder type flux-cored wire for primer steel-plate corner welding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101450427A true CN101450427A (en) | 2009-06-10 |
| CN101450427B CN101450427B (en) | 2010-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810164233XA Expired - Fee Related CN101450427B (en) | 2008-12-31 | 2008-12-31 | Metal powder type flux-cored wire for primer steel-plate corner welding |
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| CN (1) | CN101450427B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102601534A (en) * | 2012-03-08 | 2012-07-25 | 中煤北京煤矿机械有限责任公司 | Method for realizing paint welding for metal and corrosion resistance for hydraulic support |
| CN103008911A (en) * | 2012-12-06 | 2013-04-03 | 南京江联焊接技术有限公司 | Self-protecting flux-cored wire for mould surfacing welding |
| CN105057925A (en) * | 2015-07-30 | 2015-11-18 | 洛阳双瑞特种合金材料有限公司 | Metal powder core-type seamless flux-cored wire for angle welding |
| CN108436322A (en) * | 2018-06-15 | 2018-08-24 | 天津市金桥焊材集团有限公司 | A kind of bridge steel high-strength and high ductility iron powder type flux-cored wire and its application |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT295954B (en) * | 1969-07-11 | 1972-01-25 | Boehler & Co Ag Geb | Welding material for electric arc welding of objects made of cold-tough steel |
| CN1093451C (en) * | 1999-04-06 | 2002-10-30 | 河北省电力试验研究所 | Tungsten-pole argon arc-welding power-core weld wire for 9-chromium-molybdenum-niobium-alumen heat resisting steel |
-
2008
- 2008-12-31 CN CN200810164233XA patent/CN101450427B/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102601534A (en) * | 2012-03-08 | 2012-07-25 | 中煤北京煤矿机械有限责任公司 | Method for realizing paint welding for metal and corrosion resistance for hydraulic support |
| CN103008911A (en) * | 2012-12-06 | 2013-04-03 | 南京江联焊接技术有限公司 | Self-protecting flux-cored wire for mould surfacing welding |
| CN103008911B (en) * | 2012-12-06 | 2015-05-27 | 南京江联焊接技术有限公司 | Self-protecting flux-cored wire for mould surfacing welding |
| CN105057925A (en) * | 2015-07-30 | 2015-11-18 | 洛阳双瑞特种合金材料有限公司 | Metal powder core-type seamless flux-cored wire for angle welding |
| CN108436322A (en) * | 2018-06-15 | 2018-08-24 | 天津市金桥焊材集团有限公司 | A kind of bridge steel high-strength and high ductility iron powder type flux-cored wire and its application |
| CN108436322B (en) * | 2018-06-15 | 2021-08-24 | 天津市金桥焊材集团股份有限公司 | High-strength high-toughness iron powder type flux-cored wire for bridge steel and application thereof |
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| Publication number | Publication date |
|---|---|
| CN101450427B (en) | 2010-10-27 |
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Granted publication date: 20101027 Termination date: 20171231 |