CN108907497B - Build-up welding flux-cored wire suitable for sintered flux for repairing plunger - Google Patents
Build-up welding flux-cored wire suitable for sintered flux for repairing plunger Download PDFInfo
- Publication number
- CN108907497B CN108907497B CN201810852243.6A CN201810852243A CN108907497B CN 108907497 B CN108907497 B CN 108907497B CN 201810852243 A CN201810852243 A CN 201810852243A CN 108907497 B CN108907497 B CN 108907497B
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- carbon
- flux
- powder
- cored wire
- steel strip
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Classifications
-
- 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
-
- 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
- B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
- B23K35/0255—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in welding
- B23K35/0261—Rods, electrodes, wires
- B23K35/0266—Rods, electrodes, wires flux-cored
Abstract
The invention belongs to the technical field of welding materials, and particularly relates to a surfacing flux-cored wire for repairing a plunger, which is suitable for a sintered flux and comprises a steel strip and powder, wherein the steel strip is an SPCC cold-rolled carbon steel strip, and the filling rate of the powder is 35-40%; the medicinal powder comprises the following components in percentage by mass: 10-15% of high-carbon ferrochrome, 10-15% of high-carbon ferromanganese, 55-60% of micro-carbon ferrochrome, 1-3% of rare earth silicon, 0.5-1% of aluminum oxide and 8-15% of one or more of ferrovanadium, ferrotungsten, ferromolybdenum and nickel powder.
Description
(I) technical field
The invention belongs to the technical field of welding materials, and particularly relates to a surfacing flux-cored wire for repairing a plunger of a sintered flux.
(II) background of the invention
The existing plunger repairing method mainly comprises a chromium electroplating method, an oxygen-acetylene flame alloy powder spraying/spray welding method and a laser fusion welding method, wherein the chromium electroplating method has serious pollution and is not suitable for environmental protection requirements; the oxygen-acetylene flame alloy powder spraying/spray welding method melts parent metal and alloy by flame, has shallow fusion depth which is generally not more than 1.5mm, and has poor fusion effect and poor wear resistance; the laser fusion welding method is high in cost and low in efficiency. Therefore, the surfacing method is used as an economical and rapid process method for material surface modification and is more and more widely applied to repairing of the plunger, a surfacing flux-cored welding wire used for surfacing repair is of great importance to the repairing performance of the plunger, and the existing surfacing flux-cored welding wire is poor in corrosion resistance and wear resistance, poor in matching effect with a sintered flux and shallow in ironing depth.
A flux-cored wire is disclosed in patent application with the patent name of precipitation hardening type stainless steel flux-cored wire for continuous casting roller submerged arc surfacing and a preparation method thereof and the publication number of CN108015447A, but the flux-cored wire has poor matching effect with a sintering type flux, and has poor performance of shallow baking depth in repairing a plunger.
Disclosure of the invention
The invention provides a surfacing flux-cored wire for repairing a plunger, which is suitable for a sintered flux, in order to make up for the defects of the prior art.
The invention is realized by the following technical scheme: a build-up welding flux-cored wire for repairing a plunger suitable for a sintered flux is composed of a steel strip and powder, wherein the steel strip is an SPCC cold-rolled carbon steel strip, and the filling rate of the powder is 35-40%; the medicinal powder comprises the following components in percentage by mass: 10-15% of high-carbon ferrochrome, 10-15% of high-carbon ferromanganese, 55-60% of micro-carbon ferrochrome, 1-3% of rare earth silicon, 0.5-1% of aluminum oxide and 8-15% of one or more of ferrovanadium, ferrotungsten, ferromolybdenum and nickel powder.
Preferably, the medicinal powder comprises the following components in percentage by mass: 10% of high-carbon ferrochromium, 12% of high-carbon ferromanganese, 60% of micro-carbon ferrochromium, 3% of rare earth silicon, 1% of aluminum oxide, 14% of ferrovanadium, ferrotungsten, ferromolybdenum and nickel powder alloy.
Preferably, the medicinal powder comprises the following components in percentage by mass: 10% of high-carbon ferrochromium, 12% of high-carbon ferromanganese, 60% of micro-carbon ferrochromium, 2% of rare earth silicon, 1% of aluminum oxide and 15% of ferrovanadium and nickel powder alloy.
The flux-cored wire is used together with a sintered flux, has no pollution, deep fusion which is about 2.5-3.5mm, high deposition efficiency, continuous multilayer surfacing and low cost, and has good corrosion resistance and wear resistance.
(IV) detailed description of the preferred embodiments
Example 1:
a surfacing flux-cored wire suitable for repairing a sintered flux plunger consists of a steel strip and powder, wherein the steel strip is an SPCC cold-rolled carbon steel strip, is rolled into a U shape by equipment, then is added with the powder according to 35-40% of filling rate, is rolled into an O shape, and is finally cold-drawn into a proper diameter by a die.
Wherein the added medicinal powder comprises the following components in percentage by mass: 10% of high-carbon ferrochromium, 12% of high-carbon ferromanganese, 60% of micro-carbon ferrochromium, 3% of rare earth silicon, 1% of aluminum oxide, 14% of ferrovanadium, ferrotungsten, ferromolybdenum and nickel powder alloy; the preferred powder fill rate of this example is 40%.
The welding wire prepared by the embodiment is used with a sintering type flux, such as an SJ102 flux, has no pollution, has the fusion depth of about 2.9-3.5mm, has high deposition efficiency, and can be continuously subjected to multi-layer surfacing. The nickel powder, the ferromolybdenum, the ferrovanadium and the ferrotungsten are added into the deposited metal, so that the corrosion resistance of the welding wire is enhanced, and the rare earth silicon is added, so that the structure is refined, and the wear-resisting effect is enhanced.
Example 2:
the difference from the embodiment 1 is that: the mass percentages of the components in the medicinal powder are as follows: 10% of high-carbon ferrochromium, 12% of high-carbon ferromanganese, 60% of micro-carbon ferrochromium, 2% of rare earth silicon, 1% of aluminum oxide, 15% of ferrovanadium and nickel powder alloy; the filling rate of the medicinal powder is 35 percent. The welding wire prepared by the embodiment has the melting depth of about 2.7-3 mm.
Example 3:
the difference from the embodiment 1 is that: the mass percentages of the components in the medicinal powder are as follows: 15% of high-carbon ferrochromium, 15% of high-carbon ferromanganese, 55% of micro-carbon ferrochromium, 1% of rare earth silicon, 1% of aluminum oxide and 13% of nickel powder; the filling rate of the medicinal powder is 37 percent. The welding wire prepared by the embodiment has the melting depth of about 2.5-2.8 mm.
Example 4:
the difference from the embodiment 1 is that: the mass percentages of the components in the medicinal powder are as follows: 15% of high-carbon ferrochromium, 14% of high-carbon ferromanganese, 60% of micro-carbon ferrochromium, 2.5% of rare earth silicon, 0.5% of aluminum oxide, 8% of ferrovanadium, ferrotungsten, ferromolybdenum and nickel powder alloy; the filling rate of the medicinal powder is 40 percent. The welding wire prepared by the embodiment has the melting depth of about 2.5-2.7 mm.
Claims (3)
1. A build-up welding flux-cored wire for repairing a plunger applicable to a sintered flux is composed of a steel strip and powder, and is characterized in that: the SPCC cold-rolled carbon steel strip is adopted, and the filling rate of the medicinal powder is 35-40%; the medicinal powder comprises the following components in percentage by mass: 10-15% of high-carbon ferrochrome, 10-15% of high-carbon ferromanganese, 55-60% of micro-carbon ferrochrome, 1-3% of rare earth silicon, 0.5-1% of aluminum oxide and 8-15% of one or more of ferrovanadium, ferrotungsten, ferromolybdenum and nickel powder.
2. The hardfacing flux-cored wire adapted for use with sintered fluxes according to claim 1 characterized by: the mass percentages of the components in the medicinal powder are as follows: 10% of high-carbon ferrochromium, 12% of high-carbon ferromanganese, 60% of micro-carbon ferrochromium, 3% of rare earth silicon, 1% of aluminum oxide, 14% of ferrovanadium, ferrotungsten, ferromolybdenum and nickel powder alloy.
3. The hardfacing flux-cored wire adapted for use with sintered fluxes according to claim 1 characterized by: the mass percentages of the components in the medicinal powder are as follows: 10% of high-carbon ferrochromium, 12% of high-carbon ferromanganese, 60% of micro-carbon ferrochromium, 2% of rare earth silicon, 1% of aluminum oxide and 15% of ferrovanadium and nickel powder alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810852243.6A CN108907497B (en) | 2018-07-30 | 2018-07-30 | Build-up welding flux-cored wire suitable for sintered flux for repairing plunger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810852243.6A CN108907497B (en) | 2018-07-30 | 2018-07-30 | Build-up welding flux-cored wire suitable for sintered flux for repairing plunger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108907497A CN108907497A (en) | 2018-11-30 |
| CN108907497B true CN108907497B (en) | 2020-11-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810852243.6A Active CN108907497B (en) | 2018-07-30 | 2018-07-30 | Build-up welding flux-cored wire suitable for sintered flux for repairing plunger |
Country Status (1)
| Country | Link |
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| CN (1) | CN108907497B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN101767256A (en) * | 2010-03-29 | 2010-07-07 | 刘西昆 | Hard-face alloy flux-cored wire material |
| CN101780609A (en) * | 2009-01-15 | 2010-07-21 | 山东聚力焊接材料有限公司 | Slag-free flux-cored wire |
| CN104690451A (en) * | 2015-02-27 | 2015-06-10 | 首钢总公司 | High-hardness self-protecting flux-cored welding wire for overlaying repair of continuous casting roller |
-
2018
- 2018-07-30 CN CN201810852243.6A patent/CN108907497B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN101780609A (en) * | 2009-01-15 | 2010-07-21 | 山东聚力焊接材料有限公司 | Slag-free flux-cored wire |
| CN101767256A (en) * | 2010-03-29 | 2010-07-07 | 刘西昆 | Hard-face alloy flux-cored wire material |
| CN104690451A (en) * | 2015-02-27 | 2015-06-10 | 首钢总公司 | High-hardness self-protecting flux-cored welding wire for overlaying repair of continuous casting roller |
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| Publication number | Publication date |
|---|---|
| CN108907497A (en) | 2018-11-30 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A heap welding flux cored wire for plunger repair suitable for sintered flux Effective date of registration: 20211229 Granted publication date: 20201117 Pledgee: Shandong Shanghe Rural Commercial Bank Co.,Ltd. Pledgor: Jinan Farina Welding Equipment Co.,Ltd. Registration number: Y2021980017014 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |