CN100391683C - Nitrogen alloy tube wire used for continuous casting roll embedding arc pile up welding and corollary welding flux - Google Patents

Nitrogen alloy tube wire used for continuous casting roll embedding arc pile up welding and corollary welding flux Download PDF

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Publication number
CN100391683C
CN100391683C CNB2005100254916A CN200510025491A CN100391683C CN 100391683 C CN100391683 C CN 100391683C CN B2005100254916 A CNB2005100254916 A CN B2005100254916A CN 200510025491 A CN200510025491 A CN 200510025491A CN 100391683 C CN100391683 C CN 100391683C
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China
Prior art keywords
welding
continuous casting
wire
nitrogen alloy
alloy tube
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Expired - Fee Related
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CNB2005100254916A
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Chinese (zh)
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CN1686663A (en
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黄权
陈晔
王俊明
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SHANGHAI JINGANG METALLURGICAL MATERIAL CO Ltd
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SHANGHAI JINGANG METALLURGICAL MATERIAL CO Ltd
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Abstract

The present invention relates to a nitrogen alloy pipe wire and matched welding agents thereof for improved continuous casting arc surfacing welding. The pipe wire is divided into two kinds of a face wire and a bottom wire. Compared with some of the existing pipe wires, the present invention improves the proportion of relevant components and components such Mn, Si, etc. are properly added. The surfacing welding component C is less than or equal to 0.06, Cr is more than or equal to 12.0, and N is more than or equal to 0.08 to 0.13. The hardness of a surfacing welding layer reaches HRC42 to 48. The matched welding agents can adopt HJ260 welding agents. The welding wire provided by the present invention has the advantages of small smoke and dust in the process of surfacing welding, good slag detachability and good formation of welding beads. The surfacing welding layer and a slag case has no pore or crack. The welding quality can completely accord with the requirements of engineering.

Description

Nitrogen alloy tube wire and using method thereof that continuous casting roller submerged arc overlay welding is used
Technical field
The invention belongs to welding technology field, be specifically related to welding wire and using method thereof that a kind of continuous casting roller submerged arc overlay welding is used.
Background technology
Tradition is used for the welding wire (or welding) of build-up welding of continuous casting roller, as Japanese 1Cr 13The NiMo welding; (material is 3 Cr to U.S. Lincoln company 420 pipe silks 13); (material is 1Cr to the 320ZA pipe silk of my company 13Ni 4Mo 2), the wild phase of their materials is carbide.The build-up welding of continuous casting roller layer that carbide strengthens, because phosphorus content is higher, the material impact merit is on the low side, the high temperature oxidation corrosion resistance of material is relatively poor, the continuous casting roller in continuous casting production process, the easy oxide etch of roll surface, the roll surface crackle is expanded easily, finally directly influences continuous casting roller service life.For this reason, be engaged in engineering circle of build-up welding of continuous casting roller material development, explore exploitation always and be different from other hard-face overlaying welding materials that carbide strengthens mechanism.The build-up welding of continuous casting roller material that they at first recommend nitride to strengthen, (material is: C 0.04 to recommend the 414N-O of use to manage silk as Austria power Kanggong difficult to understand department; Cr 12.5; Ni 4; N 0.12; Mo 2.0) be a kind of nitrogen alloy tube wire of reputable brand wherein, the nitrogen alloy tube wire of power Kanggong difficult to understand department adopts the open arc welding bead-welding technology, and the weld deposit process flue dust is big, the noise height, and need to adopt the special import welding machine.Carry out welding process, overlay cladding just can prevent to produce pore (producing pore as adopting common welding machine overlay cladding), like this, increases cost to the user, and has added trouble.
In order to overcome above-mentioned drawback, the nitrogen alloy tube wire that the applicant begins to develop, formulate one and be different from external open arc nitrogen alloy tube wire commonly used, but the technology path of unique submerged-arc welding nitrogen alloy tube wire, and determine that following four technical indicators 1. stablize by submerged arc overlay welding electric current, voltage, deslag performance is good, and the welding bead moulding is good, the essentially no pore of roll surface, is mingled with (can suitably allow to occur a small amount of pore).2. overlay cladding composition C≤0.06; Cr 〉=12.0; N 〉=0.08-0.13.3. surfacing hardness HRC42-48.4. the user adopts my company's nitrogen alloy tube wire and coupling solder flux build-up welding continuous-casting roller, and actual steel transportation amount must meet or exceed the continuous casting roller steel transportation amount or the service life of the build-up welding of continuous casting roller material built-up welding of carbide enhancing in the past.In development process, give full play to my company's solder flux, pipe silk coupling, the technical advantage of material and process matching, the formula test of tens of nitrogen alloy tube wires of process and coupling solder flux and pipe silk, solder flux bead-welding technology on roller in kind are tested, captured dry slag, technical barriers such as overlay cladding pore are finally determined a cover face silk, and end silk and solder flux are build-up welding of continuous casting roller nitrogen alloy tube wire auxiliary products.
Summary of the invention
The welding wire and the using method thereof that the object of the present invention is to provide a kind of welding bead forming, continuous casting roller submerged arc overlay welding that layer hardness is high to use.
The continuous casting roller submerged arc overlay welding welding wire that the present invention proposes is a kind of nitrogen alloy tube wire, is divided into two kinds of face silk and end silks.Wherein the weight percentages of face silk (weldering before composition, %) as follows:
C：0.03-0.05，Cr：14.0-16.0，Mn：0.3-1.5，Mo：1.5-2.5，
Ni:4.0-5.0, Si:0.3-1.0, N:0.2-0.3, P and S:0-0.03,
Other aluminium and vanadium sum: 0-1.5, all the other are matrix: Fe;
The weight percentages of end silk (composition before the weldering, %) as follows:
C：0.03-0.05，Cr：17.0-19.0，Mn：0.1-0.5，Si：0.1-0.5，
P and S:0-0.03, all the other are matrix: Fe.
Remember that above-mentioned silk is Diamond 320ZB-N, end silk is Diamond 320ZB-E.
Can adopt the HJ260 solder flux with the matching used solder flux of above-mentioned welding wire.
Composition, hardness and mechanical property behind the Diamond 320ZB-N pipe wire bond:
1. bead-welding technology performance
Join weldering HJ-260 solder flux, bead-welding technology process flue dust is few, and the removability of slag is good, forming, overlay cladding and skull pore-free, crackle.
2. overlay cladding composition and hardness
A, our company's assay determination value (at certain batch products)
Overlay cladding composition (%)
C Cr Mn Mo Ni Si N P S
0.05 14.5 1.19 1.45 4.4 0.63 0.11 0.028 0.014
Surfacing hardness (HRC)
46.6；46.3；45.6；47.3；45.9
B, China's certain weight equipment Co., Ltd assay determination value (piling three layers)
Overlay cladding composition (%)
C Cr Mn Mo Si N P S
0.056 14.81 0.84 1.17 0.79 0.11 0.028 0.014
Surfacing hardness (HRC)
46.5；45.5；45；43.3；44.1
3. overlay cladding mechanical property
Our company entrusts Shanghai mechanical industry quality of materials inspection center to detect 320ZB-N pipe silk overlay cladding mechanical property, and is analyzed with external 414N-O open arc pipe silk overlay cladding mechanical property.Testing result sees the following form
Project name sample title Tensile strength Rm (Mpa) Yield strength Rp 0.2(Mpa) Percentage elongation A (%)
320ZB-N pipe silk submerged arc overlay welding layer 1390 1210 11
External 414N-O open arc welding overlay cladding 1250-1350 11
The characteristics of welding wire of the present invention:
1, compare with the nitrogen alloy tube wire that power Kanggong difficult to understand department recommends the open arc built-up welding of the 414N-O that uses to use, the 320ZB-N pipe silk submerged arc overlay welding technology of my company, weld deposit process does not have flue dust, noiselessness, and the user can adopt common homemade welding machine to carry out welding process.
2, contain the Cr amount and do not reach 12% problem sometimes in order to solve Si Taili company 414 pipe silk overlay claddings, it is 0Cr that my company develops material specially 18End silk 320ZB-E pipe silk, the user adopts silk 320ZB-E at the bottom of one deck in the welding process, two aspect silk 320ZB-N, build-up welding of continuous casting roller layer contain the Cr amount greater than 12%.
3, all compare greater than (or equaling) 0.1% with the build-up welding of continuous casting roller of carbide enhancing in the past layer C content, a 320ZB-N pipe silk overlay cladding phosphorus content all is lower than 0.06%, the wlding good welding performance, and build-up welding continuous-casting roller corrosion resistance is good.
4, a 320ZB-N pipe silk coupling HJ-260 solder flux, the wlding price is low, can adopt homemade submerged arc welding machine, and post weld heat treatment technology is simple, can directly come into operation without tempering heat treatment generally speaking, satisfies the metallurgical industry requirement that reduces production costs fully.
5, the continuous casting roller of 320ZB-N pipe silk submerged arc overlay welding is examined through actual continuous casting process, and the composition performance is uniform and stable, and steel transportation amount is 1,000,000 tons on a fan-shaped section continuous casting roller, 1,200,000 tons on horizontal segment continuous casting roller, steel transportation amount and service life basic symbols share the family requirement.
The specific embodiment
The invention is further illustrated by the following examples.
(annotate: 320ZB-E beats at the bottom of one deck, and 320ZB-N welds two aspect silks, joins the H260 solder flux)
Embodiment 1:
1, Diamond 320ZB-N pipe silk composition (by weight percentage, base material Fe does not give and marking, down together)
C Cr Mn Mo Ni Si N P S Other
0.03 14.0 0.3 1.5 4.0 0.3 0.2 0.03 0.03 1.5
2, Diamond 320ZB-E pipe silk composition:
C Cr Mn Si P S Other
0.03 17.0 0.5 0.5 0.03 0.03 --
3, overlay cladding composition
C Cr Mn Mo Ni Si N P S
0.04 12.5 0.80 1.4 3.80 0.52 0.08 0.027 0.015
1, postwelding hardness (HRC) is average: 44
2, bead-welding technology performance
Arc stability, the welding bead moulding is good, the weld seam pore-free, is mingled with.
Embodiment 2:
1, Diamond 320ZB-N pipe silk composition:
C Cr Mn Mo Ni Si N P S Other
0.05 16.0 1.5 2.5 5.0 1.0 0.3 0.028 0.029 1.5
2, Diamond 320ZB-E pipe silk composition:
C Cr Mn Si P S Other
0.05 19.0 0.2 0.2 0.025 0.025 --
3, overlay cladding composition
C Cr Mn Mo Ni Si N P S
0.057 14.80 1.6 1.8 4.5 0.8 0.12 0.028 0.015
1, postwelding hardness (HRC) is average: 45
2, bead-welding technology performance
Arc stability, the removability of slag is good, the welding bead moulding is good, the weld seam pore-free, be mingled with, crackle.
Embodiment 3:
1, Diamond 320ZB-N pipe silk composition:
C Cr Mn Mo Ni Si N P S Other
0.04 14.5 0.35 1.65 4.10 0.36 0.22 0.028 0.029 1.5
2, Diamond 320ZB-E pipe silk composition:
C Cr Mn Si P S Other
0.04 17.6 0.45 0.45 0.027 0.029 --
3, overlay cladding composition
C Cr Mn Mo Ni Si N P S
0.05 12.6 0.95 1.55 3.85 0.6 0.09 0.028 0.025
4, postwelding hardness (HRC) is average: 46
5, bead-welding technology performance
Arc stability, the removability of slag is good, the welding bead moulding is good, the weld seam pore-free, be mingled with, crackle.
Embodiment 4:
1, Diamond 320ZB-N pipe silk composition:
C Cr Mn Mo Ni Si N P S Other
0.04 14.8 0.38 1.7 4.20 0.38 0.25 0.028 0.028 1.5
2, Diamond 320ZB-E pipe silk composition:
C Cr Mn Si P S Other
0.04 18.0 0.5 0.46 0.027 0.028 --
3, overlay cladding composition
C Cr Mn Mo Ni Si N P S
0.05 13.0 1.0 1.6 3.90 0.6 0.10 0.029 0.025
4, postwelding hardness (HRC) is average: 46.2
5, bead-welding technology performance
Arc stability, the removability of slag is good, the welding bead moulding is good, the weld seam pore-free, be mingled with, crackle.
Embodiment 5:
1, Diamond 320ZB-N pipe silk composition:
C Cr Mn Mo Ni Si N P S Other
0.04 15.5 1.0 2.0 4.5 0.6 0.23 0.029 0.028 1.5
2, Diamond 320ZB-E pipe silk composition:
C Cr Mn Si P S Other
0.04 18.5 0.45 0.45 0.029 0.028 --
3, overlay cladding composition
C Cr Mn Mo Ni Si N P S
0.05 14.5 1.2 1.8 4.0 0.7 0.09 0.028 0.025
4, postwelding hardness (HRC) is average: 45.2
5, bead-welding technology performance
Arc stability, the removability of slag is good, the welding bead moulding is good, the weld seam pore-free, be mingled with, crackle.

Claims (2)

1. the nitrogen alloy tube wire that continuous casting roller submerged arc overlay welding is used is characterized in that being divided into two kinds of face silk and end silks, and wherein, the weight percentages of face silk is as follows:
C： 0.03-0.05，Cr：14.0-16.0，Mn：0.3-1.5，Mo： 1.5-2.5，
Ni:4.0-5.0, Si:0.3-1.0, N:0.2-0.3, P and S:0-0.03,
Aluminium and vanadium sum: 0-1.5, all the other are matrix: Fe;
The weight percentages of end silk is as follows:
C：0.03-0.05，Cr：17.0-19.0，Mn：0.1-0.5，Si：0.1-0.5，
P and S:0-0.03, all the other are matrix: Fe.
2. the using method of a continuous casting roller submerged arc overlay welding usefulness nitrogen alloy tube wire as claimed in claim 1 is characterized in that adopting the HJ260 solder flux.
CNB2005100254916A 2005-04-28 2005-04-28 Nitrogen alloy tube wire used for continuous casting roll embedding arc pile up welding and corollary welding flux Expired - Fee Related CN100391683C (en)

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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT506674B9 (en) * 2008-04-22 2010-10-15 Siemens Vai Metals Tech Gmbh ROLE FOR SUPPORTING AND TRANSPORTING HOT GOOD, METHOD FOR PRODUCING THE ROLE, METHOD FOR RECONSTRUCTING A PROTECTED ROLE, WELDING ADDITIVE MATERIAL AND WELDING WIRE FOR PRODUCING ORDER WELDING
CN105479038A (en) * 2016-01-20 2016-04-13 江苏星源电站冶金设备制造有限公司 Build up welding layer of continuous casting roller
CN105965174B (en) * 2016-05-05 2018-06-29 江苏星源电站冶金设备制造有限公司 A kind of Continuous Casting Rolls bottom surface resurfacing welding material
CN112916986A (en) * 2021-02-02 2021-06-08 常州本森焊业科技有限公司 Build-up welding method for continuous casting roller
CN114101968B (en) * 2021-12-08 2022-12-09 安徽马钢重型机械制造有限公司 Composite welding flux for reducing and modifying hard surface layer inclusions in surfacing of continuous casting roller and preparation method of composite welding flux

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57154394A (en) * 1981-03-19 1982-09-24 Toshiba Corp Welding rod for build-up welding
CN1314228A (en) * 2000-03-20 2001-09-26 现代综合金属株式会社 Solder core type welding wire with good anti-fragmentation performance for welding ferrite stainless steel
US20020148533A1 (en) * 2000-07-28 2002-10-17 Kim Jong-Won Flux cored wire for dual phase stainless steel
CN1490122A (en) * 2002-09-20 2004-04-21 ������������ʽ���� Solder wire and welding method thereby
CN1562552A (en) * 2004-04-16 2005-01-12 华中科技大学 Soldering wire material containing nitrogen alloyed alloy core in form of hard surface

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57154394A (en) * 1981-03-19 1982-09-24 Toshiba Corp Welding rod for build-up welding
CN1314228A (en) * 2000-03-20 2001-09-26 现代综合金属株式会社 Solder core type welding wire with good anti-fragmentation performance for welding ferrite stainless steel
US20020148533A1 (en) * 2000-07-28 2002-10-17 Kim Jong-Won Flux cored wire for dual phase stainless steel
CN1490122A (en) * 2002-09-20 2004-04-21 ������������ʽ���� Solder wire and welding method thereby
CN1562552A (en) * 2004-04-16 2005-01-12 华中科技大学 Soldering wire material containing nitrogen alloyed alloy core in form of hard surface

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