CN102909488A - Niobium-bearing stainless steel flux-cored wire high in slag detachability - Google Patents

Niobium-bearing stainless steel flux-cored wire high in slag detachability Download PDF

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Publication number
CN102909488A
CN102909488A CN2012104207350A CN201210420735A CN102909488A CN 102909488 A CN102909488 A CN 102909488A CN 2012104207350 A CN2012104207350 A CN 2012104207350A CN 201210420735 A CN201210420735 A CN 201210420735A CN 102909488 A CN102909488 A CN 102909488A
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China
Prior art keywords
powder
cored wire
flux
content
slag
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CN2012104207350A
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CN102909488B (en
Inventor
冯纪东
孙仲宝
丁志国
张键
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SHANDONG FEIYUE WELDING INDUSTRY Co Ltd
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SHANDONG FEIYUE WELDING INDUSTRY Co Ltd
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Abstract

The invention relates to a flux-cored wire, in particular to a niobium-bearing stainless steel flux-cored wire high in slag detachability. The flux-cored wire comprises a flux core. The flux core comprises 0.5-2.5% of fluorite, 3.0-7.0% of wollastonite, 2.0-5.0% of aluminum powder, 1.0-3.0% of ferrosilicon 75, 2.0-4.0% of potassium sodium titanate, 28.0-32.0% of rutile, 3.0-6.0% of potassium fluosilicate, 1.0-3.0% of cryolite, 2.0-5.0% of potassium feldspar, 1.0-3.0% of magnesium powder, 21.0-25.0% of chromium powder, 6.0-10.0% of nickel powder, 5.0-9.0% of ferroniobium, 2.0-5.0% of electrolytic manganese powder, and 8.0-13.0% of reduced iron powder. The niobium-bearing stainless steel flux-cored wire is high in slag detachability, has the advantages of easiness in slag detaching, stable arc, low spattering and attractive formed welds and has excellent weldability, and weld metal has fine corrosion resistance and toughness effect.

Description

Easily take off the Nb-containing stainless flux-cored wire of slag
Technical field
The present invention relates to a kind of flux-cored wire, be specifically related to a kind of Nb-containing stainless flux-cored wire that easily takes off slag.
Background technology
Stainless flux-cored wire coats the medicine core through rolling by stainless steel belt, and draw becomes product.Serious, the explosive slag of Nb-containing stainless flux-cored wire dry slag of the prior art, scarfing cinder difficulty, the easy slag inclusion of weld seam causes the reduction of production efficiency.
Summary of the invention
The object of the present invention is to provide a kind of Nb-containing stainless flux-cored wire that easily takes off slag, have take off slag easily, arc stability, the characteristics little, that appearance of weld is attractive in appearance of splashing, weld metal has good corrosion resistance and excellent plasticity and toughness.
The slag Nb-containing stainless flux-cored wire that easily takes off of the present invention, comprise the medicine core, by percentage to the quality, medicine core composition is: fluorite 0.5-2.5%, wollastonite 3.0-7.0%, aluminium powder 2.0-5.0%, 75# ferrosilicon 1.0-3.0%, potassium titanate sodium 2.0-4.0%, rutile 28.0-32.0%, potassium fluosilicate 3.0-6.0%, ice crystal 1.0-3.0%, potassic feldspar 2.0-5.0%, magnesium powder 1.0-3.0%, hafnium metal powfer 21.0-25.0%, metal nickel powder 6.0-10.0%, ferro-niobium 5.0-9.0%, electrolytic manganese powder 2.0-5.0% and reduced iron powder 8.0-13.0%.
Described medicine core accounts for the 19.0-21.0% of flux-cored wire gross mass.
Each component granularity of described medicine core is 60 order all-pass mistakes, and granularity is not more than 5wt.% less than 80 purposes, is not more than 15wt.% greater than 180 purposes.
The used steel band of flux-cored wire of the present invention is austenitic stainless steel strip 304L, phosphorus content＜0.02wt.%.
Each component composition requires as followsly in the medicine core, and content of material is all by percentage to the quality in each component:
(1) fluorite: CaF 2Content〉96%;
(2) wollastonite: CaO content〉47%, SiO 2Content〉50%;
(3) aluminium powder: AL content〉99%;
(4) 75# ferrosilicon: Si content 73-77%, C content＜0.3%;
(5) potassium titanate sodium: K 2O content 5-10%, K 2O+Na 2O:18-22%, Ti 2O content 73-77%; Potassium titanate sodium is the mixture of potassium titanate and sodium titanate;
(6) rutile: TiO 2Content〉95%;
(7) potassium fluosilicate: K 2SiF 6Content〉95%;
(8) ice crystal: Na 3AlF 6Content〉97%;
(9) potassic feldspar: K 2O+Na 2O content〉14%, SiO 2Content 64-69%, AL 2O 3Content 16-19%;
(10) magnesium powder: Mg content〉99.5%;
(11) hafnium metal powfer: Cr content〉99%, C content＜0.05%;
(12) metal nickel powder: Ni content〉99%;
(13) ferro-niobium: Nb content〉60%, C content＜0.15%;
(14) electrolytic manganese powder: Mn content〉99%, C content＜0.1%;
(15) reduced iron powder: Fe content is〉98%, C content is＜0.04%.
Used protective gas is carbon dioxide during welding, and its purity is CO 2Content〉99.5wt.%, H 2O content＜0.3wt.%.
Compared with prior art, beneficial effect of the present invention is as follows:
The slag Nb-containing stainless flux-cored wire that easily takes off provided by the invention, deslag performance is good, not only have take off slag easily, arc stability, the characteristics little, that appearance of weld is attractive in appearance of splashing, and have fabulous welding procedure, weld metal has good corrosion resistance and excellent plasticity and toughness.
The specific embodiment
The invention will be further described below in conjunction with embodiment.
Embodiment 1
The slag Nb-containing stainless flux-cored wire that easily takes off of the present invention, by percentage to the quality, medicine core composition is: fluorite 2.0%, wollastonite 3.7%, aluminium powder 2.1%, 75# ferrosilicon 1.2%, potassium titanate sodium 2.1%, rutile 28.1%, potassium fluosilicate 3.0%, ice crystal 1.2%, potassic feldspar 4.6%, magnesium powder 2.0%, hafnium metal powfer 21.5%, metal nickel powder 8.1%, ferro-niobium 5.8%, electrolytic manganese powder 2.0%, reduced iron powder 12.6%; The medicine core accounts for 19.5% of flux-cored wire gross mass; Each component granularity of medicine core is 60 order all-pass mistakes, and granularity is 5wt.% less than 80 purposes, is 10wt.% greater than 180 purposes.
Embodiment 2
The slag Nb-containing stainless flux-cored wire that easily takes off of the present invention, by percentage to the quality, medicine core composition is: fluorite 0.6%, wollastonite 5.8%, aluminium powder 3.6%, 75# ferrosilicon 1.8%, potassium titanate sodium 3.0%, rutile 29.0%, potassium fluosilicate 3.9%, ice crystal 1.5%, potassic feldspar 2.0%, magnesium powder 1.0%, hafnium metal powfer 23.0%, metal nickel powder 7.0%, ferro-niobium 5.0%, electrolytic manganese powder 3.0%, reduced iron powder 9.8%; The medicine core accounts for 20.2% of flux-cored wire gross mass; Each component granularity of medicine core is 60 order all-pass mistakes, and granularity is 4wt.% less than 80 purposes, is 12wt.% greater than 180 purposes.
Embodiment 3
The slag Nb-containing stainless flux-cored wire that easily takes off of the present invention, by percentage to the quality, medicine core composition is: fluorite 2.5%, wollastonite 3.0%, aluminium powder 4.6%, 75# ferrosilicon 2.6%, potassium titanate sodium 2.2%, rutile 28.7%, potassium fluosilicate 3.0%, ice crystal 3.0%, potassic feldspar 3.0%, magnesium powder 1.1%, hafnium metal powfer 21.0%, metal nickel powder 6.0%, ferro-niobium 8.0%, electrolytic manganese powder 2.5%, reduced iron powder 8.8%; The medicine core accounts for 20.6% of flux-cored wire gross mass; Each component granularity of medicine core is 60 order all-pass mistakes, and granularity is 4.5wt.% less than 80 purposes, is 11wt.% greater than 180 purposes.
Used material is the commercially available prod among the embodiment 1-3, each content of material all by percentage to the quality:
(1) fluorite: CaF 2Content 96.0%; The prosperous grand mining industry of Fenyi County's official seal Co., Ltd product.
(2) wollastonite: CaO content 47.2%, SiO 2Content 51.8%; Xinyu City south wollastonite Co., Ltd product.
(3) aluminium powder: AL content 99.3%; Shanghai Jiuding Powder Materials Co., Ltd's product.
(4) 75# ferrosilicon: Si content is 76.2%, C content is 0.26%; Jinzhou Yun Hai metal dust processing Co., Ltd product.
(5) potassium titanate sodium: K 2O content 8.0%, K 2O+Na 2O:18.6%, Ti 2O content 73.6%; Potassium titanate sodium is the mixture of potassium titanate and sodium titanate; Nantong new electronics technology Co., Ltd difficult to understand product.
(6) rutile: TiO 2Content 95.6%; Gold city, Wanning mining industry Co., Ltd product.
(7) potassium fluosilicate: K 2SiF 6Content 98.5%, Yunnan fluorine aluminium industry and trade Co., Ltd product.
(8) ice crystal: Na 3AlF 6Content 98.2%, Zibo Korea S chemical plant product.
(9) potassic feldspar: K 2O+Na 2O content 14.2%, SiO 2Content 68.0%, AL 2O 3Content 17.2%; Mineral powder factory of Linxiang City three strongest ones product.
(10) magnesium powder: Mg content 99.8%; Nanyang Jin Geli magnesium industry product.
(11) hafnium metal powfer: Cr content 99.2%, C content 0.005%; Jinzhou Yun Hai metal dust processing Co., Ltd product.
(12) metal nickel powder: Ni content 99.8%; Jinzhou Yun Hai metal dust processing Co., Ltd product.
(13) ferro-niobium: trade mark FeNb60-A, Nb content 65.0%, C content 0.04%; Jiangsu Province new resources material Science and Technology Ltd. product.
(14) electrolytic manganese powder: Mn content 99.8%, C content 0.02%; Jinzhou Yun Hai metal dust processing Co., Ltd product.
(15) reduced iron powder: Fe content is 98.3%, C content is 0.02%; Powder metallurgy company of Wuhan Iron and Steel Plant group product.

Claims (3)

1. one kind is easily taken off the slag Nb-containing stainless flux-cored wire, comprise the medicine core, it is characterized in that: by percentage to the quality, medicine core composition is: fluorite 0.5-2.5%, wollastonite 3.0-7.0%, aluminium powder 2.0-5.0%, 75# ferrosilicon 1.0-3.0%, potassium titanate sodium 2.0-4.0%, rutile 28.0-32.0%, potassium fluosilicate 3.0-6.0%, ice crystal 1.0-3.0%, potassic feldspar 2.0-5.0%, magnesium powder 1.0-3.0%, hafnium metal powfer 21.0-25.0%, metal nickel powder 6.0-10.0%, ferro-niobium 5.0-9.0%, electrolytic manganese powder 2.0-5.0% and reduced iron powder 8.0-13.0%.
2. the slag Nb-containing stainless flux-cored wire that easily takes off according to claim 1, it is characterized in that: described medicine core accounts for the 19.0-21.0% of flux-cored wire gross mass.
3. the slag Nb-containing stainless flux-cored wire that easily takes off according to claim 1 and 2, it is characterized in that: each component granularity of described medicine core is 60 order all-pass mistakes, and granularity is not more than 5wt.% less than 80 purposes, is not more than 15wt.% greater than 180 purposes.
CN201210420735.0A 2012-10-29 2012-10-29 Niobium-bearing stainless steel flux-cored wire high in slag detachability Expired - Fee Related CN102909488B (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105269177A (en) * 2015-11-24 2016-01-27 天津市金桥焊材集团有限公司 Stainless steel flux-cored wire achieving purpose that surface of welding joint is free of oxidation tint
CN103480981B (en) * 2013-09-22 2016-04-06 北京工业大学 A kind of 347 stainless flux-cored wires of low Cr VI discharge
CN105945451A (en) * 2016-04-22 2016-09-21 郑州机械研究所 High-strength high-toughness self-protection alkaline flux-cored wire applicable to all-position welding
CN106903456A (en) * 2017-03-07 2017-06-30 安徽升鸿电子有限公司 A kind of potassium titanate sodium preparation method with height flowing moisture resistance
CN107931887A (en) * 2017-11-16 2018-04-20 天津大桥焊材集团有限公司 A kind of end socket special stainless steel gas shielded arc welding flux-cored wire and preparation method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3221136A (en) * 1956-05-29 1965-11-30 British Oxygen Co Ltd Method and electrode for electric arc welding
CN1765565A (en) * 2005-12-02 2006-05-03 北京工业大学 Nb-containing stainless flux-cored wire with favorite detachability
CN101690996A (en) * 2009-10-16 2010-04-07 河北翼辰实业集团有限公司 All-position niobium -contained stainless steel flux-cored wire
EP2174746A1 (en) * 2008-10-11 2010-04-14 Kabushiki Kaisha Kobe Seiko Sho Low-Hydrogen coated electrode

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3221136A (en) * 1956-05-29 1965-11-30 British Oxygen Co Ltd Method and electrode for electric arc welding
CN1765565A (en) * 2005-12-02 2006-05-03 北京工业大学 Nb-containing stainless flux-cored wire with favorite detachability
EP2174746A1 (en) * 2008-10-11 2010-04-14 Kabushiki Kaisha Kobe Seiko Sho Low-Hydrogen coated electrode
CN101690996A (en) * 2009-10-16 2010-04-07 河北翼辰实业集团有限公司 All-position niobium -contained stainless steel flux-cored wire

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103480981B (en) * 2013-09-22 2016-04-06 北京工业大学 A kind of 347 stainless flux-cored wires of low Cr VI discharge
CN105269177A (en) * 2015-11-24 2016-01-27 天津市金桥焊材集团有限公司 Stainless steel flux-cored wire achieving purpose that surface of welding joint is free of oxidation tint
CN105945451A (en) * 2016-04-22 2016-09-21 郑州机械研究所 High-strength high-toughness self-protection alkaline flux-cored wire applicable to all-position welding
CN105945451B (en) * 2016-04-22 2018-05-08 郑州机械研究所有限公司 One kind can be used for all position welding high-strength and high ductility self-shield alkaline flux-cored wire
CN106903456A (en) * 2017-03-07 2017-06-30 安徽升鸿电子有限公司 A kind of potassium titanate sodium preparation method with height flowing moisture resistance
CN107931887A (en) * 2017-11-16 2018-04-20 天津大桥焊材集团有限公司 A kind of end socket special stainless steel gas shielded arc welding flux-cored wire and preparation method thereof

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