CN106112311B - A kind of flux-cored wire with excellent toughness - Google Patents
A kind of flux-cored wire with excellent toughness Download PDFInfo
- Publication number
- CN106112311B CN106112311B CN201610634841.7A CN201610634841A CN106112311B CN 106112311 B CN106112311 B CN 106112311B CN 201610634841 A CN201610634841 A CN 201610634841A CN 106112311 B CN106112311 B CN 106112311B
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- China
- Prior art keywords
- flux
- cored wire
- excellent toughness
- medicine core
- weight ratio
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
- B23K35/3053—Fe as the principal constituent
- B23K35/308—Fe as the principal constituent with Cr as next major constituent
- B23K35/3086—Fe as the principal constituent with Cr as next major constituent containing Ni or Mn
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Nonmetallic Welding Materials (AREA)
Abstract
The invention discloses a kind of flux-cored wire with excellent toughness, including stainless steel crust and medicine core, the component of the medicine core includes: Cr:22-24% by weight percentage, Ni:5-12%, Si:0.95-1.25%, La:0.1-0.14%, Nb:0.1-0.18%, Mn:0.8-1.3%, C:0.55-0.9%, B:0.45-0.65%, Ti:0.25-0.78%, S :≤0.008%, P :≤0.008%, surplus is Fe and inevitable impurity.Hardness of the present invention is high, and wearability is good.
Description
Technical field
The present invention relates to flux-cored wire technical field more particularly to a kind of flux-cored wires with excellent toughness.
Background technique
Hot forging pressing mold later will repair mold cavity using thousands of times.Mold after reparation can achieve even
More than the pervious service life of reparation.Domestic progress hot-forging mould, which is repaired, at present mainly uses surfacing welding, and efficiency is lower.It adopts
It with flux-cored wire reparation, may be implemented continuously to weld, improve production efficiency.The welding slag of flux-cored wire is far less than the weldering of welding rod
Slag improves deposition rate, reduces the workload of scarfing cinder.But hardness, the wearability of current flux-cored wire also can not meet demand,
It is in urgent need to be improved.
Summary of the invention
Technical problems based on background technology, the invention proposes a kind of flux-cored wire with excellent toughness, systems
Product hardness is high, and wearability is good.
A kind of flux-cored wire with excellent toughness proposed by the present invention, including stainless steel crust and medicine core, the medicine core
Component by weight percentage include: Cr:22-24%, Ni:5-12%, Si:0.95-1.25%, La:0.1-0.14%, Nb:
0.1-0.18%, Mn:0.8-1.3%, C:0.55-0.9%, B:0.45-0.65%, Ti:0.25-0.78%, S :≤
0.008%, P :≤0.008%, surplus is Fe and inevitable impurity.
Preferably, the content of Ti, B, C meet functional relation: nC=1.48 × nB 2+0.62×nTi+ 0.096%；nC、
nB、nTiRespectively indicate C, B, Ti shared weight percent in component.
Preferably, the weight ratio of C, B and Ti are 0.6-0.68:0.5-0.58:0.4-0.5.
Preferably, the weight ratio of Mn and Si is 1-1.2:1-1.2.
Preferably, the weight ratio of La and Cr is 0.11-0.12:22.5-23.
Preferably, the weight ratio of Ni and Nb is 6-8:0.12-0.16.
Preferably, the flux-cored wire with excellent toughness, the component of the medicine core include: by weight percentage
Cr:22.5-23%, Ni:6-8%, Si:1-1.2%, La:0.11-0.12%, Nb:0.12-0.16%, Mn:1-1.2%, C:
0.6-0.68%, B:0.5-0.58%, Ti:0.4-0.5%, S :≤0.008%, P :≤0.008%, surplus is Fe and can not keep away
The impurity exempted from.
Drawing welding wire function admirable of the present invention meets continuous welding technique requirement.Strength of welded joint is high, malleability is good,
And there is good corrosion resistance.Wherein medicine core reasonable mixture ratio of components, welding effect is good, and weld strength is high, wearability is good, welding layer
Hardness reaches HRC68.4, and wearability can be improved 20%.
Wherein Ti, B, C mating reaction, and rationally control three constituent contents and meet certain relationship, in obtained article substrate
It is dispersed with the primary carbide and tiny eutectic carbide of hexagon, there is black particle at primary carbide center, is TiC-
TiB2 complex chemical compound, TiC-TiB2 complex chemical compound are the nucleating centers of primary carbide as heterogeneous granular, are conducive to just
Raw carbide nucleation, the microhardness of TiC-TiB2 is high, and Dispersed precipitate forms high rigidity in primary carbide and matrix
Wear-resisting particle improves the hardness and wearability of hardfacing alloy.
And the effect of C is to maintain the intensity of welding metal, and oxidized byproduct is inhibited to penetrate into inside welding metal, ensures welding
The quality at position.It can also increase is arc resistance, make welding slag from the drawbacks of point fusing into, avoid insufficient (incomplete) penetration.
Si is deoxidier, and effect is the oxygen content reduced in deposited metal, and increases the viscosity of welding slag, improves deposition gold
The mobility of category.
Mn is deoxidier and desulfurizing agent, can be chemically reacted with S, and MnS is generated, to prevent from generating FeS, passes through separation
S can inhibit the generation of low-melting compound and the generation of hot cracking phenomenon.
Ni becomes stable welding metal tissue in welding under the conditions of high heat inputs temperature between weldering and high level, ensures
The toughness and intensity of welding metal.
Specific embodiment
In the following, technical solution of the present invention is described in detail by specific embodiment.
Embodiment 1
A kind of flux-cored wire with excellent toughness, including stainless steel crust and medicine core, the component of the medicine core is by weight
Percentage includes: Cr:22%, Ni:12%, Si:0.95%, La:0.14%, Nb:0.1%, Mn:1.3%, C:0.876%, B:
0.65%, Ti:0.25%, S :≤0.008%, P :≤0.008%, surplus is Fe and inevitable impurity.
Embodiment 2
A kind of flux-cored wire with excellent toughness, including stainless steel crust and medicine core, the component of the medicine core is by weight
Percentage includes: Cr:24%, Ni:5%, Si:1.25%, La:0.1%, Nb:0.18%, Mn:0.8%, C:0.84%, B:
0.45%, Ti:0.78%, S :≤0.008%, P :≤0.008%, surplus is Fe and inevitable impurity.
Embodiment 3
A kind of flux-cored wire with excellent toughness, including stainless steel crust and medicine core, the component of the medicine core is by weight
Percentage includes: Cr:22.5%, Ni:8%, Si:1%, La:0.12%, Nb:0.12%, Mn:1.2%, C:0.6%, B:
0.58%, Ti:0.4%, S :≤0.008%, P :≤0.008%, surplus is Fe and inevitable impurity.
Embodiment 4
A kind of flux-cored wire with excellent toughness, including stainless steel crust and medicine core, the component of the medicine core is by weight
Percentage includes: Cr:23%, Ni:6%, Si:1.2%, La:0.11%, Nb:0.16%, Mn:1%, C:0.68%, B:
0.5%, Ti:0.5%, S :≤0.008%, P :≤0.008%, surplus is Fe and inevitable impurity.
Embodiment 5
A kind of flux-cored wire with excellent toughness, including stainless steel crust and medicine core, the component of the medicine core is by weight
Percentage includes: Cr:22.8%, Ni:7%, Si:1.1%, La:0.115%, Nb:0.15%, Mn:1.1%, C:0.64%,
B:0.56%, Ti:0.445%, S :≤0.008%, P :≤0.008%, surplus is Fe and inevitable impurity.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (5)
1. a kind of flux-cored wire with excellent toughness, which is characterized in that including stainless steel crust and medicine core, the group of the medicine core
Divide includes: Cr:22-24%, Ni:5-12%, Si:0.95-1.25%, La:0.1-0.14%, Nb:0.1- by weight percentage
0.18%, Mn:0.8-1.3%, C:0.55-0.9%, B:0.5-0.65%, Ti:0.5-0.78%, S :≤0.008%, P :≤
0.008%, surplus is Fe and inevitable impurity；
The content of Ti, B, C meet functional relation: nC=1.48 × nB 2+0.62×nTi+ 0.096%；nC、nB、nTiIt respectively indicates
C, B, Ti shared weight percent in component.
2. the flux-cored wire according to claim 1 with excellent toughness, which is characterized in that the weight ratio of C, B and Ti is
0.6-0.68:0.5-0.58:0.5.
3. the flux-cored wire according to claim 1 or 2 with excellent toughness, which is characterized in that the weight ratio of Mn and Si
For 1-1.2:1-1.2.
4. the flux-cored wire according to claim 1 or 2 with excellent toughness, which is characterized in that the weight ratio of La and Cr
For 0.11-0.12:22.5-23.
5. the flux-cored wire according to claim 1 or 2 with excellent toughness, which is characterized in that the weight ratio of Ni and Nb
For 6-8:0.12-0.16.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610634841.7A CN106112311B (en) | 2016-08-05 | 2016-08-05 | A kind of flux-cored wire with excellent toughness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610634841.7A CN106112311B (en) | 2016-08-05 | 2016-08-05 | A kind of flux-cored wire with excellent toughness |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106112311A CN106112311A (en) | 2016-11-16 |
| CN106112311B true CN106112311B (en) | 2019-05-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610634841.7A Active CN106112311B (en) | 2016-08-05 | 2016-08-05 | A kind of flux-cored wire with excellent toughness |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107127478B (en) * | 2017-05-17 | 2020-10-13 | 安徽飞弧焊业股份有限公司 | Flux-cored wire |
| CN110819931B (en) * | 2019-11-29 | 2021-10-12 | 山东交通学院 | Powder-cored welding wire, preparation method and application thereof, porous coating and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102601547A (en) * | 2012-03-15 | 2012-07-25 | 江苏中江焊丝有限公司 | Stainless steel flux cored wire |
| CN102601546A (en) * | 2012-03-15 | 2012-07-25 | 江苏中江焊丝有限公司 | Stainless steel flux cored wire |
| CN102744528A (en) * | 2011-04-22 | 2012-10-24 | 攀钢集团钢铁钒钛股份有限公司 | Flux-cored wire, method for manufacturing coil box bending roller, and coil box bending roller |
| CN102886621A (en) * | 2012-10-29 | 2013-01-23 | 海门市威菱焊材制造有限公司 | Self-protected flux-cored wire |
| CN104668819A (en) * | 2015-02-12 | 2015-06-03 | 西安理工大学 | Metal flux-cored wire for 2205 duplex stainless steel and preparing method thereof |
| CN105397335A (en) * | 2015-12-21 | 2016-03-16 | 四川鸿舰重型机械制造有限责任公司 | Flux-cored wire for overlaying of water-cooled grate plate and scraper plate |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6241241B2 (en) * | 2013-10-30 | 2017-12-06 | 新日鐵住金株式会社 | Welding material for austenitic heat resistant steel, weld metal and welded joint using the same |
-
2016
- 2016-08-05 CN CN201610634841.7A patent/CN106112311B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102744528A (en) * | 2011-04-22 | 2012-10-24 | 攀钢集团钢铁钒钛股份有限公司 | Flux-cored wire, method for manufacturing coil box bending roller, and coil box bending roller |
| CN102601547A (en) * | 2012-03-15 | 2012-07-25 | 江苏中江焊丝有限公司 | Stainless steel flux cored wire |
| CN102601546A (en) * | 2012-03-15 | 2012-07-25 | 江苏中江焊丝有限公司 | Stainless steel flux cored wire |
| CN102886621A (en) * | 2012-10-29 | 2013-01-23 | 海门市威菱焊材制造有限公司 | Self-protected flux-cored wire |
| CN104668819A (en) * | 2015-02-12 | 2015-06-03 | 西安理工大学 | Metal flux-cored wire for 2205 duplex stainless steel and preparing method thereof |
| CN105397335A (en) * | 2015-12-21 | 2016-03-16 | 四川鸿舰重型机械制造有限责任公司 | Flux-cored wire for overlaying of water-cooled grate plate and scraper plate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106112311A (en) | 2016-11-16 |
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