CN1528554A - Surfacing welding electrode with anti liquid zinc and aluminium-containing zinc-base alloy corrosion - Google Patents
Surfacing welding electrode with anti liquid zinc and aluminium-containing zinc-base alloy corrosion Download PDFInfo
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- CN1528554A CN1528554A CNA031433200A CN03143320A CN1528554A CN 1528554 A CN1528554 A CN 1528554A CN A031433200 A CNA031433200 A CN A031433200A CN 03143320 A CN03143320 A CN 03143320A CN 1528554 A CN1528554 A CN 1528554A
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Abstract
The invention discloses a build-up welding rod resistant to the corrosion of liquid state Zn and Al-Zn based alloy, composed of rutile, marble, fluorite, feldspar, mica, Cr powder, silicon iron, ferromanganese, molybdenum-iron, aluminium iron, Ni powder, titanium pigment, ferrotitanium and rare earth. It heightens Si content (Si>2%), and adds in Cr to prohibit zinc-iron alloying reaction, increases Mn content to reduce the soakage of Zn liquid to steel base, and increases Ni and Cr to effectively reduce Al-Zn liquid containing zinc-iron alloying reaction. It reasonably selects Si, Mn, Ni, Cr, Mo, etc in the deposited metal to make the deposited metal have good Zn liquid corrosion resistance. It is applied to the corrosion resisting of 0-7% Al containing Zn liquid and liquid Zn based alloy. Its life of built-up welding layer is 3-50 times of low-carbon (C<0.03%), low silicon (Si<0.03%) steels.
Description
Technical field
The present invention relates to a kind of tolerance of liquid zinc and contain the surfacing welding that aluminum zn-based alloys corrodes.
Background technology
As everyone knows, when steel contact with zinc liquid, liquid Zn and steel matrix generation physics chemical action.In the steel in each element and the zinc liquid alloying element to zinc-iron reaction speed and product---zinc-iron alloy composition mutually has crucial influence.Elements such as carbon, silicon, phosphorus are very big to the influence of zinc-iron reaction in the galvanizing classical theory proposition steel, generally speaking, carbon, silicon, phosphorus content are high more, the zinc-iron reaction is fierce more, zinc is just big more to the corrosion weight loss of iron, in order to reduce the corrosion of zinc liquid to iron, general low silicon, mild steel or the ingot iron of adopting made zinc pot and structural member.Aluminium is topmost alloying element in the galvanizing, adds aluminium in the zinc liquid and can increase coating adhesion, coating gloss, the corrosion resistance of coating in environment for use.The element that reaction has the greatest impact to zinc-iron in the zinc liquid alloying element also is an aluminium, and liquid aluminium is very serious to steel corrosion.Magnesium, nickel, rare earth, plumbous zinc-iron is reacted have no adverse effects in the zinc liquid.Increase along with aluminium content in the zinc, after incubation period, zinc liquid also increases greatly to the corrosion weight loss of iron, with the zinc pot is example, the zinc pot of the low-carbon (LC) that 50mm is thick, low-silicon steel weldering system, and can reach 3-5 the service life in pure zinc, when aluminium content reaches 0.1-0.2% in the zinc, be about 1 year service life, and aluminium content reaches at 5% o'clock in the zinc, and only be one month service life.Galfan alloy (Zn-5%Al-RE) puts it in China in recent years, and the pot body of hot dip Galfan alloy and pot inner structure part can not be used carbon steel.In order to improve the service life of zinc pot and pot inner structure part, repairing need be used resurfacing welding material by zinc liquid and the surface that contains the aluminum zn-based alloys corrosion, China does not still have anti-Zn solution and the welding rod special for special that contains the aluminium liquid zinc corrosion at present, generally adopts J422 low-carbon (LC) welding rod, and its stability in containing aluminium zinc liquid is very undesirable.
Summary of the invention
For solving the problems of the technologies described above, the purpose of this invention is to provide a kind of built-up welding deposited metal that makes has good chemical stability at zinc with containing in the aluminum zn-based alloys, make welding material have the tolerance of liquid zinc and the surfacing welding that contains the aluminum zn-based alloys corrosion of good welding technological properties simultaneously.
The technical scheme that the present invention solves the problems of the technologies described above employing is: it is that steel wire with H08 or Cr25Al5 is a core wire, and its coating is formed (ratio of weight and number) by following component: rutile 1-8 part, marble 8-25 part, fluorite 9-30 part, feldspar 5-16 part, mica 1-5 part, chromium powder 0.1-25 part, ferrosilicon 10-30 part, ferromanganese 10-15 part, molybdenum-iron 8-16 part, ferro-aluminum 0.1-15 part, nickel powder 0.1-25 part, iron white powder 1-10 part, ferrotianium 5-20 part, rare earth 0.1-5 part.
Coating bonds with potassium-sodium water glass, and gravity coefficient of coating is 0.6-1.2.
The chemical composition of surfacing welding overlay cladding of the present invention is (percentage by weight): C:0.2-2.0, Si:2.0-5.0, and Mn:1.0-5.0, Cr:5.0-30.0, Ni:0-20, Mo:0-4.0, Al:0-7.0, RE:0-0.7, surplus is Fe.
The technological progress that the present invention obtains is: use prescription of the present invention, using the chemical analysis of back deposited metal is (percentage by weight): C:0.2-2.0, Si:2.0-5.0, Mn:1.0-5.0, Cr:5.0-30.0, Ni:0-20, Mo:0-4.0, Al:0-7.0, RE:0-0.7, surplus is Fe.The present invention passes through to improve Si content (Si＞2%), and adds the Cr element and can suppress the zinc-iron alloy reaction, increases Mn content and can reduce the wellability of zinc liquid to base steel, and increase Ni, Cr element can reduce the zinc-iron alloy reaction that contains aluminium zinc liquid effectively.By elements such as the silicon in the choose reasonable deposited metal, manganese, nickel, chromium, molybdenums, optimize the content of each element, make deposited metal that good liquid zinc corrosion resistant be arranged; The present invention is applicable to that the content of anti-aluminium is the corrosion of 0-7% zinc liquid and liquid zinc-containing alloy, and the life-span of its overlay cladding is low-carbon (LC) (C＜0.03%), low silicon (Si＜0.03%) steel 3-50 a times.
The specific embodiment
Implement one: get nickel powder 0.5Kg, chromium powder 3Kg, molybdenum-iron 10Kg, ferro-aluminum 10Kg, ferromanganese 10Kg, ferrosilicon 25Kg, ferrotianium 7Kg, rare earth 2Kg, fluorite 15Kg, marble 15Kg, feldspar 5Kg, rutile 3Kg, titanium dioxide 3Kg, mica 2Kg.
Preparation method: the ferroalloy of above-mentioned weight proportion is crossed 60 mesh sieves, nonmetallic substance is crossed 40 mesh sieves, mix back adding potassium-sodium water glass and stir, be applied to through extrusion press and make the semi-finished product welding rod on the FeCr25Al5 silk, after room temperature is dried, dried 3 hours through 250 ℃ again.The chemical analysis of this welding rod deposited metal is (percentage by weight): Cr:22.2, Si:3.8, Mn:1.4, Mo:1.6, C:0.25, Al:1.1, all the other are Fe, being welded into sample and low-silicon low-carbon steel, to put into temperature simultaneously be 500 ℃, and aluminium content is to soak 72 hours in 5% the zinc liquid, and corrosion weight loss is 1/50th of a low-carbon low-silicon steel.
Embodiment two: get rutile 1Kg, marble 8Kg part, fluorite 9Kg, feldspar 5Kg, mica 1Kg, chromium powder 0.1Kg, ferrosilicon 10Kg, ferromanganese 10Kg, molybdenum-iron 8Kg, ferro-aluminum 0.1Kg, nickel powder 0.1Kg, titanium dioxide 1Kg, ferrotianium 5Kg, rare earth 0.1Kg.The preparation method is with embodiment one.
Embodiment three: get chromium powder 8Kg, marble 25Kg, fluorite 30Kg, feldspar 16Kg, mica 5Kg, chromium powder 25Kg, ferrosilicon 30Kg, ferromanganese 15Kg, molybdenum-iron 16Kg, ferro-aluminum 15Kg, nickel powder 25Kg, titanium dioxide 10Kg, ferrotianium 20Kg, rare earth 5Kg.The preparation method is with embodiment one.
Claims (2)
1, a kind of tolerance of liquid zinc and contain the surfacing welding of aluminum zn-based alloys corrosion, be that steel wire with H08 or Cr25Al5 is a core wire, its coating is formed (ratio of weight and number) by following component: rutile 1-8 part, marble 8-25 part, fluorite 9-30 part, feldspar 5-16 part, mica 1-5 part, chromium powder 0.1-25 part, ferrosilicon 10-30 part, ferromanganese 10-15 part, molybdenum-iron 8-16 part, ferro-aluminum 0.1-15 part, nickel powder 0.1-25 part, titanium dioxide 1-10 part, ferrotianium 5-20 part, rare earth 0.1-5 part.
Coating bonds with potassium-sodium water glass, and gravity coefficient of coating is 0.6-1.2.
2, tolerance of liquid zinc according to claim 1 and contain the surfacing welding of aluminum zn-based alloys corrosion, the chemical composition that it is characterized in that overlay cladding is (percentage by weight): C:0.2-2.0, Si:2.0-5.0, Mn:1.0-5.0, Cr:5.0-30.0, Ni:0-20, Mo:0-4.0, Al:0-7.0, RE:0-0.7, surplus is Fe.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03143320 CN1264641C (en) | 2003-09-28 | 2003-09-28 | Surfacing welding electrode with anti liquid zinc and aluminium-containing zinc-base alloy corrosion |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03143320 CN1264641C (en) | 2003-09-28 | 2003-09-28 | Surfacing welding electrode with anti liquid zinc and aluminium-containing zinc-base alloy corrosion |
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| CN1528554A true CN1528554A (en) | 2004-09-15 |
| CN1264641C CN1264641C (en) | 2006-07-19 |
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| CN 03143320 Expired - Fee Related CN1264641C (en) | 2003-09-28 | 2003-09-28 | Surfacing welding electrode with anti liquid zinc and aluminium-containing zinc-base alloy corrosion |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100553855C (en) * | 2007-05-23 | 2009-10-28 | 山东大学 | A kind of sandwiched alloy powder block used for built-up welding and preparation method thereof and application |
| CN101301708B (en) * | 2008-06-27 | 2010-04-07 | 陈冬 | Improved welding material with tolerance of liquid zinc and aluminiferous zinc-base alloy |
| CN101537544B (en) * | 2009-04-28 | 2011-03-23 | 天津市金桥焊材集团有限公司 | Electric welding rod for welding large scale low temperature spherical tank steel |
| CN102892550A (en) * | 2010-08-02 | 2013-01-23 | 韩元男 | Cold cast iron welding rod with nickelless steel wire for removing tendency of destruction of haz (heat affected zone) and eliminating blowholes from weld metal |
| CN103447704A (en) * | 2013-01-10 | 2013-12-18 | 芜湖新兴铸管有限责任公司 | Sintering machine head curve repair technology |
| CN108907506A (en) * | 2018-09-06 | 2018-11-30 | 四川大西洋焊接材料股份有限公司 | Input-energy steel special welding wire and preparation method |
-
2003
- 2003-09-28 CN CN 03143320 patent/CN1264641C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100553855C (en) * | 2007-05-23 | 2009-10-28 | 山东大学 | A kind of sandwiched alloy powder block used for built-up welding and preparation method thereof and application |
| CN101301708B (en) * | 2008-06-27 | 2010-04-07 | 陈冬 | Improved welding material with tolerance of liquid zinc and aluminiferous zinc-base alloy |
| CN101537544B (en) * | 2009-04-28 | 2011-03-23 | 天津市金桥焊材集团有限公司 | Electric welding rod for welding large scale low temperature spherical tank steel |
| CN102892550A (en) * | 2010-08-02 | 2013-01-23 | 韩元男 | Cold cast iron welding rod with nickelless steel wire for removing tendency of destruction of haz (heat affected zone) and eliminating blowholes from weld metal |
| CN103447704A (en) * | 2013-01-10 | 2013-12-18 | 芜湖新兴铸管有限责任公司 | Sintering machine head curve repair technology |
| CN103447704B (en) * | 2013-01-10 | 2016-03-16 | 芜湖新兴铸管有限责任公司 | A kind of sintering machine head bend renovation technique |
| CN108907506A (en) * | 2018-09-06 | 2018-11-30 | 四川大西洋焊接材料股份有限公司 | Input-energy steel special welding wire and preparation method |
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| Publication number | Publication date |
|---|---|
| CN1264641C (en) | 2006-07-19 |
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