CN111515580A - Abrasion-resistant metal powder core type stainless steel flux-cored wire and application thereof - Google Patents
Abrasion-resistant metal powder core type stainless steel flux-cored wire and application thereof Download PDFInfo
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- CN111515580A CN111515580A CN202010290906.7A CN202010290906A CN111515580A CN 111515580 A CN111515580 A CN 111515580A CN 202010290906 A CN202010290906 A CN 202010290906A CN 111515580 A CN111515580 A CN 111515580A
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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
-
- 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
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- Nonmetallic Welding Materials (AREA)
Abstract
The invention discloses an abrasion-resistant metal powder core type stainless steel flux-cored wire which comprises a stainless steel strip and powder, wherein the powder is wrapped in the stainless steel strip and comprises the following components in parts by weight: 1-5 parts of an arc stabilizer; 2-5 parts of electrolytic manganese; 5-10 parts of ferrosilicon; 1-3 parts of high-carbon ferrochrome; 17-25 parts of chromium powder; 15-30 parts of nickel powder; 10-20 parts of ferroboron; 15-30 parts of ferromolybdenum; 5-20 parts of iron powder, and the invention also discloses an application of the abrasion-resistant metal powder core type stainless steel flux-cored wire, wherein the welding wire has reasonable matching of all alloy elements, can improve the hardness of a welding seam, has good corrosion resistance due to the fact that the welding seam metal mainly takes Cr-Ni-Mo as the main metal, can be applied to cladding of various abrasion-resistant oil cylinders or other surfaces, and has good welding manufacturability due to the adoption of hot wire TIG and high-speed arc welding for cladding, thereby being suitable for popularization.
Description
Technical Field
The invention belongs to the field of metal welding materials, and particularly relates to an abrasion-resistant metal powder core type stainless steel flux-cored wire and application thereof.
Background
With the continuous enhancement of environmental awareness of people, the need for cladding the surfaces of a hydraulic support upright post, a piston rod and the like of a coal mine machine instead of electroplating is increasing, so that a wear-resistant and corrosion-resistant flux-cored wire is urgently needed for cladding operation.
Accordingly, further developments and improvements are still needed in the art.
Disclosure of Invention
In order to solve the above problems, an abrasion-resistant metal powder cored stainless steel flux-cored wire and its application are proposed, which has good abrasion resistance.
In order to achieve the purpose, the invention provides the following technical scheme:
an abrasion-resistant metal powder core type stainless steel flux-cored wire comprises a stainless steel strip and powder, wherein the powder is wrapped in the stainless steel strip and comprises the following components in parts by weight:
1-5 parts of an arc stabilizer;
2-5 parts of electrolytic manganese;
5-10 parts of ferrosilicon;
1-3 parts of high-carbon ferrochrome;
17-25 parts of chromium powder;
15-30 parts of nickel powder;
10-20 parts of ferroboron;
15-30 parts of ferromolybdenum;
5-20 parts of iron powder.
Preferably, the powder accounts for 16-20% of the total weight of the welding wire.
Preferably, the granularity and the mesh number of the medicinal powder are 60-80 meshes.
Preferably, the diameter of the welding wire is 1.0mm-1.6 mm.
Preferably, the stainless steel band is a 430 stainless steel band.
Preferably, the stainless steel strip has a thickness of 0.5mm and a width of 12 mm.
Preferably, the medicinal powder comprises the following components in parts by weight: 2 parts of an arc stabilizer; 3 parts of electrolytic manganese; 9 parts of ferrosilicon; 1.5 parts of high-carbon ferrochrome; 19 parts of chromium powder; 24.5 parts of nickel powder; 12 parts of ferroboron; 23 parts of ferromolybdenum; 6 parts of iron powder, wherein the powder accounts for 16.5 percent of the total weight of the welding wire.
Preferably, the medicinal powder comprises the following components in parts by weight: 3.5 parts of arc stabilizer, 2.5 parts of electrolytic manganese, 7 parts of ferrosilicon, 2.5 parts of high-carbon ferrochrome, 18.5 parts of chromium powder, 21.5 parts of nickel powder, 12.5 parts of ferroboron, 26 parts of ferromolybdenum and 6 parts of iron powder, wherein the powder accounts for 18.5 percent of the total weight of the welding wire.
Preferably, the medicinal powder comprises the following components in parts by weight: 2.5 parts of arc stabilizer, 2.5 parts of electrolytic manganese, 5.5 parts of ferrosilicon, 1.8 parts of high-carbon ferrochrome, 27 parts of chromium powder, 18.5 parts of nickel powder, 19 parts of ferroboron, 18 parts of ferromolybdenum and 5.2 parts of iron powder, wherein the powder accounts for 19.5 percent of the total weight of the welding wire.
An application of an abrasion-resistant metal powder core type stainless steel flux-cored wire is to adopt hot wire TIG or high-speed arc welding under the protection of pure Ar for welding or surfacing on the surface of a workpiece.
Has the advantages that:
the invention provides an abrasion-resistant metal flux-cored stainless steel flux-cored wire, which has the advantages that the alloy elements are reasonably matched, the hardness of a welding line can be improved, the metal of the welding line is mainly Cr-Ni-Mo, the welding line has good corrosion resistance, can be applied to cladding of various abrasion-resistant oil cylinders or other surfaces, and can be clad by adopting hot wire TIG and high-speed arc welding, so that the welding process is good, and the welding wire is suitable for popularization.
Detailed Description
In order to make the technical solutions of the present invention better understood, the following description is provided clearly and completely, and other similar embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present application based on the embodiments in the present application.
An abrasion-resistant metal powder core type stainless steel flux-cored wire comprises a stainless steel strip and powder, wherein the powder is wrapped in the stainless steel strip and comprises the following components in parts by weight:
1-5 parts of arc stabilizer, which can improve the stability of electric arc and reduce splashing;
2-5 parts of electrolytic manganese, which is mainly used for deoxidation;
5-10 parts of ferrosilicon, which belongs to a deoxidizer and provides alloy elements at the same time;
1-3 parts of high-carbon ferrochrome, which mainly provides Cr element for a welding seam, improves the corrosion resistance and simultaneously ensures the carbon content in the welding seam;
17-25 parts of chromium powder, which provides Cr element for a welding line and improves corrosion resistance;
15-30 parts of nickel powder, which provides Ni element for welding seams and improves corrosion resistance;
10-20 parts of ferroboron, which provides Cr element for welding seams and improves corrosion resistance;
15-30 parts of ferromolybdenum, which provides Mo element for welding seams and improves corrosion resistance;
5-20 parts of iron powder for adjusting the content of Fe element in the holding component.
Specifically, the powder accounts for 16-20% of the total weight of the welding wire.
Specifically, the granularity and the mesh number of the medicinal powder are 60-80 meshes.
Specifically, the diameter of the welding wire is 1.0mm-1.6 mm.
Specifically, the stainless steel strip is a 430 stainless steel strip.
Specifically, the specification of the stainless steel strip is 0.5mm in thickness and 12mm in width.
When the abrasion-resistant metal flux-cored stainless steel flux-cored wire is welded by hot wire TIG or high-speed arc welding under the protection of pure Ar or a welding seam is formed on the surface of a workpiece through surfacing, the welding seam comprises the following components in percentage by mass: 0.07-0.2% of C; 0.5 to 1.5 percent of Si; 0.3 to 1.0 percent of Mn; 0 to 0.03 percent of S; 0 to 0.03 percent of P; 15.5 to 19.0 percent of Cr; 2.5 to 5 percent of Ni; 1% -3% of Mo; b, 0.2% -1.0%; 70 to 79 percent of Fe.
The reasons for setting the action and mass percentage of each element in the weld are as follows:
c: c has a great influence on the hardness and corrosion resistance of stainless steel. C is an important element for improving the hardness of the stainless steel; the C has high affinity with Cr and can form a series of complex carbides with Cr, the higher the carbon content is, the more carbides are formed, the larger the consumption of Cr is, and the poorer the intergranular corrosion performance is. Therefore, the mass ratio of C is set to 0.07-0.2%.
Si: si is advantageous to the chloride ion corrosion resistance of stainless steel; however, the larger the Si content, the more the precipitation of chromium carbide is promoted, and the formation of a chromium-deficient region is promoted. Therefore, the mass ratio of Si is set to 0.5 to 1.5%.
Mn: mn can improve the strength of steel, but easily combines with S in steel to form MnS inclusions. The dissolution rate of MnS in an acid solution is high, and the MnS is a sensitive point of pitting corrosion. The corrosion rate of the alloy increases with increasing Mn content, and the pitting potential decreases. Therefore, increasing the Mn content of the alloy is disadvantageous against pitting corrosion. Therefore, the mass ratio of Mn is set to 0.3% to 1.0%.
S and P: s and P often have impurity elements in common stainless steel, and both reduce the corrosion performance of the stainless steel. Therefore, the mass ratio of S to P is set to 0.03% or less.
Cr: cr is one of the basic elements for improving the corrosion resistance of stainless steel, and is used for improving the repair capability or regeneration capability of a passive film of the steel and improving the pitting corrosion resistance of the stainless steel. The increase of the Cr content is beneficial to the balance of the chromium content in the chromium-poor area and the chromium-rich area, and reduces the sensitivity of intergranular corrosion. Therefore, the mass ratio of Cr is set to 15.5% to 19.0%.
Ni: ni is an excellent corrosion-resistant material, and is one of main elements of stainless steel, so that the austenite content is increased, and the corrosion resistance of the steel is improved. Therefore, the mass ratio of Ni is set to 15.5% to 19.0%.
Mo: mo can reduce the defect concentration in the passive film on the surface of the stainless steel, so that a very compact and firm passive film is generated on the surface of the stainless steel, and the corrosion resistance of the stainless steel in various acids, especially the resistance to chloride ion pitting corrosion, is obviously improved. Therefore, the mass ratio of Mo is set to 1% to 3%.
B: b significantly increases the hardness and strength of stainless steel, but too much B leads to a tendency to crack. Therefore, the mass ratio of B is set to 0.2% to 1%.
The technical scheme of the invention is explained in detail by the following specific examples:
example 1:
an abrasion-resistant metal powder core type stainless steel flux-cored wire comprises a stainless steel strip and powder, wherein the powder is wrapped in the stainless steel strip and comprises the following components in parts by weight: 2 parts of arc stabilizer, 3 parts of electrolytic manganese, 9 parts of ferrosilicon, 1.5 parts of high-carbon ferrochrome, 19 parts of chromium powder, 24.5 parts of nickel powder, 12 parts of ferroboron, 23 parts of ferromolybdenum and 6 parts of iron powder, wherein the powder accounts for 16.5 percent of the total weight of the welding wire.
Example 2:
an abrasion-resistant metal powder core type stainless steel flux-cored wire comprises a stainless steel strip and powder, wherein the powder is wrapped in the stainless steel strip and comprises the following components in parts by weight: 1.5 parts of arc stabilizer, 4 parts of electrolytic manganese, 6 parts of ferrosilicon, 1.2 parts of high-carbon ferrochrome, 20 parts of chromium powder, 25 parts of nickel powder, 15 parts of ferroboron, 20 parts of ferromolybdenum and 7.3 parts of iron powder, wherein the medicinal powder accounts for 17.5 percent of the total weight of the welding wire.
Example 3:
an abrasion-resistant metal powder core type stainless steel flux-cored wire comprises a stainless steel strip and powder, wherein the powder is wrapped in the stainless steel strip and comprises the following components in parts by weight: 3 parts of arc stabilizer, 3 parts of electrolytic manganese, 8 parts of ferrosilicon, 2 parts of high-carbon ferrochrome, 21 parts of chromium powder, 24 parts of nickel powder, 16 parts of ferroboron, 17.5 parts of ferromolybdenum and 5.5 parts of iron powder, wherein the powder accounts for 18 percent of the total weight of the welding wire.
Example 4:
an abrasion-resistant metal powder core type stainless steel flux-cored wire comprises a stainless steel strip and powder, wherein the powder is wrapped in the stainless steel strip and comprises the following components in parts by weight: 3.5 parts of arc stabilizer, 2.5 parts of electrolytic manganese, 7 parts of ferrosilicon, 2.5 parts of high-carbon ferrochrome, 18.5 parts of chromium powder, 21.5 parts of nickel powder, 12.5 parts of ferroboron, 26 parts of ferromolybdenum and 6 parts of iron powder, wherein the powder accounts for 18.5 percent of the total weight of the welding wire.
Example 5:
an abrasion-resistant metal powder core type stainless steel flux-cored wire comprises a stainless steel strip and powder, wherein the powder is wrapped in the stainless steel strip and comprises the following components in parts by weight: 4 parts of arc stabilizer, 3 parts of electrolytic manganese, 9.5 parts of ferrosilicon, 2.2 parts of high-carbon ferrochrome, 22 parts of chromium powder, 23 parts of nickel powder, 13 parts of ferroboron, 18 parts of ferromolybdenum and 5.3 parts of iron powder, wherein the powder accounts for 19% of the total weight of the welding wire.
Example 6:
an abrasion-resistant metal powder core type stainless steel flux-cored wire comprises a stainless steel strip and powder, wherein the powder is wrapped in the stainless steel strip and comprises the following components in parts by weight: 2.5 parts of arc stabilizer, 2.5 parts of electrolytic manganese, 5.5 parts of ferrosilicon, 1.8 parts of high-carbon ferrochrome, 27 parts of chromium powder, 18.5 parts of nickel powder, 19 parts of ferroboron, 18 parts of ferromolybdenum and 5.2 parts of iron powder, wherein the powder accounts for 19.5 percent of the total weight of the welding wire
Selecting a 27SiMn pipe with the diameter of 100mm and the wall thickness of 25mm, turning the surface, respectively adopting flux-cored wires with the diameter of 1.2mm produced by the powder in the embodiments 1-6, cladding the surface of the pipe by adopting a hot wire TIG process, wherein the parameters of the hot wire TIG process are as follows: welding current is 150-. And after cladding, performing Rockwell hardness test on the cladding layer, and then turning and grinding the surface of the cladding layer.
Carrying out copper accelerated acetate spray test on the surface of the treated cladding workpiece: and (3) proportioning a neutral salt spray test (NSS) solution by adopting a salt spray test box according to the requirements of GB/T10125-2012 (artificial atmosphere corrosion test salt spray test).
And (3) putting the workpiece cladded by the flux-cored wire using the powder in the embodiments 1-6 into the salt spray test box for 96 hours, and observing the corrosion condition of the surface of the workpiece.
The experimental results are shown in table 1:
TABLE 1 results of the related experiments
The test results show that the corrosion test results of the examples 1-6 meet the 10-grade standard of GB/T6461-2002 (the rating of the test sample and the test piece after the corrosion test of the metal and other inorganic coatings on the metal body), and the arc stability, the welding slag, the welding line formation, the splashing and the hardness of the cladding layer can also completely meet the use requirements.
The present invention has been described in detail, and it should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
Claims (10)
1. The abrasion-resistant metal powder core type stainless steel flux-cored wire is characterized by comprising a stainless steel strip and powder, wherein the powder is wrapped in the stainless steel strip and comprises the following components in parts by weight:
1-5 parts of an arc stabilizer;
2-5 parts of electrolytic manganese;
5-10 parts of ferrosilicon;
1-3 parts of high-carbon ferrochrome;
17-25 parts of chromium powder;
15-30 parts of nickel powder;
10-20 parts of ferroboron;
15-30 parts of ferromolybdenum;
5-20 parts of iron powder.
2. The abrasion resistant metal powder cored stainless steel flux cored welding wire of claim 1, wherein the powder comprises 16-20% of the total weight of the wire.
3. The abrasion resistant metal powder cored stainless steel flux cored wire of claim 1, wherein the powder size mesh is 60-80 mesh.
4. The abrasion resistant metal powder cored stainless steel flux cored wire of claim 1, wherein the wire diameter is 1.0mm to 1.6 mm.
5. The abrasion resistant metal powder cored stainless steel flux cored wire of claim 1, wherein the stainless steel strip is a 430 stainless steel strip.
6. The abrasion resistant metal powder cored stainless steel flux cored wire of claim 1, wherein the stainless steel strip gauge is 0.5mm thick and 12mm wide.
7. The abrasion-resistant metal powder cored stainless steel flux-cored wire of claim 2, wherein the powder comprises the following components in parts by weight: 2 parts of an arc stabilizer; 3 parts of electrolytic manganese; 9 parts of ferrosilicon; 1.5 parts of high-carbon ferrochrome; 19 parts of chromium powder; 24.5 parts of nickel powder; 12 parts of ferroboron; 23 parts of ferromolybdenum; 6 parts of iron powder, wherein the powder accounts for 16.5 percent of the total weight of the welding wire.
8. The abrasion-resistant metal powder cored stainless steel flux-cored wire of claim 2, wherein the powder comprises the following components in parts by weight: 3.5 parts of arc stabilizer, 2.5 parts of electrolytic manganese, 7 parts of ferrosilicon, 2.5 parts of high-carbon ferrochrome, 18.5 parts of chromium powder, 21.5 parts of nickel powder, 12.5 parts of ferroboron, 26 parts of ferromolybdenum and 6 parts of iron powder, wherein the powder accounts for 18.5 percent of the total weight of the welding wire.
9. The abrasion-resistant metal powder cored stainless steel flux-cored wire of claim 2, wherein the powder comprises the following components in parts by weight: 2.5 parts of arc stabilizer, 2.5 parts of electrolytic manganese, 5.5 parts of ferrosilicon, 1.8 parts of high-carbon ferrochrome, 27 parts of chromium powder, 18.5 parts of nickel powder, 19 parts of ferroboron, 18 parts of ferromolybdenum and 5.2 parts of iron powder, wherein the powder accounts for 19.5 percent of the total weight of the welding wire.
10. The application of the abrasion-resistant metal powder core type stainless steel flux-cored wire is characterized in that hot wire TIG or high-speed arc welding under pure Ar protection is adopted for welding or workpiece surface overlaying.
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Cited By (3)
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CN112301304A (en) * | 2020-09-24 | 2021-02-02 | 山东鲁银新材料科技有限公司 | Preparation method and application of near-spherical metal powder for anticorrosive repair spraying |
CN115890061A (en) * | 2022-12-27 | 2023-04-04 | 西安智能再制造研究院有限公司 | TiC and VC reinforced laser surfacing layer and preparation method thereof |
CN115922149A (en) * | 2022-12-27 | 2023-04-07 | 西安智能再制造研究院有限公司 | High-wear-resistance corrosion-resistant laser cladding flux-cored wire and preparation method thereof |
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CN115890061A (en) * | 2022-12-27 | 2023-04-04 | 西安智能再制造研究院有限公司 | TiC and VC reinforced laser surfacing layer and preparation method thereof |
CN115922149A (en) * | 2022-12-27 | 2023-04-07 | 西安智能再制造研究院有限公司 | High-wear-resistance corrosion-resistant laser cladding flux-cored wire and preparation method thereof |
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Application publication date: 20200811 |