CN112122821B - Wear-resistant and corrosion-resistant flux-cored wire for TIG-P surfacing of hydraulic support component - Google Patents
Wear-resistant and corrosion-resistant flux-cored wire for TIG-P surfacing of hydraulic support component Download PDFInfo
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- CN112122821B CN112122821B CN202011054984.3A CN202011054984A CN112122821B CN 112122821 B CN112122821 B CN 112122821B CN 202011054984 A CN202011054984 A CN 202011054984A CN 112122821 B CN112122821 B CN 112122821B
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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
- B23K35/02—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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- 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
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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
- B23K35/40—Making wire or rods for soldering or welding
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Abstract
The invention provides a wear-resistant and corrosion-resistant flux-cored wire for TIG-P surfacing of a hydraulic support component, which comprises a flux core and a sheath wrapped on the outer side of the flux core, wherein the flux core comprises the following components, by mass, 5% -12% of high-carbon ferrochrome, 2% -8% of high-nitrogen ferrochrome, 15% -26% of metal chromium, 1% -5% of a silicon additive, 1% -4% of a manganese additive, 0.5% -6% of a niobium additive, 0.5% -3% of ferromolybdenum, 0.5% -3% of ferrovanadium, 12% -24% of copper powder, 0.5% -8% of a boron additive, 1% -3% of a titanium additive, 1% -5% of a rare earth additive, 0.5% -3% of an arc stabilizer and the balance of iron powder, wherein the sum of the mass fractions of the components is 100%. According to the invention, the welding wire controls the components of the surfacing metal through the components and the content of the powder, so that small-particle Cu-rich coherent precipitation precipitated phases are generated in the crystal, a matrix structure with martensite as the main structure of the surfacing alloy, a small amount of residual austenite and precipitation hardening precipitated phases are obtained, the hardness and the corrosion resistance of the surfacing metal are effectively improved, and the surfacing metal is suitable for surfacing repair of coal mining hydraulic support components which are in service for coal gangue impact and in a coal mine environment medium corrosion environment for a long time.
Description
Technical Field
The invention belongs to the technical field of welding materials, and particularly relates to a wear-resistant and corrosion-resistant flux-cored wire for TIG-P surfacing of a hydraulic support component.
Background
The hydraulic support for mechanized coal mining is a core component which is concerned with the life safety and effective operation of workers, and a vertical column piston rod, an oil cylinder and the like of the hydraulic support are in service in severe environments of coal gangue impact and coal mine environment medium corrosion for a long time, so that the hydraulic support is easy to cause surface abrasion and corrosion failure after long-time use.
The surface modification technology of the key parts of the hydraulic support comprises the following steps: electroplating, brazing, spraying, overlaying, and the like. The plating layer of the electroplated hard chromium is thin (only 50-70um) and has great environmental pollution, and is basically banned; the binding force of brazing and spraying is low, and the brazing and spraying are easy to fall off; the surfacing welding has the problems of high production efficiency and strong bonding force, but has the problems of quick temperature rise, large heat influence and rough surface. The powder material surface modification technology has low efficiency, high equipment cost investment and low use life; the wire arc surfacing welding technology has low cost and high efficiency, but the thermal deformation generated by welding is large, and the surface flatness is low. At present, no effective deposition modification technology and alloy can solve the problem, the service life and the safety of the hydraulic support are seriously influenced, so that the selection of a high-efficiency high-quality surfacing method, the development and the development of a surfacing layer material with a long service life cycle are the key points for improving the wear resistance and the corrosion resistance of the surface of a key part of the hydraulic support, and the method has practical significance for prolonging the service life of coal equipment and developing the whole industry.
Disclosure of Invention
In view of the above, the invention aims to provide a wear-resistant and corrosion-resistant flux-cored wire for TIG-P surfacing of a hydraulic support component, wherein the content of C, B, Nb, Cr, V, Mo, Ti and other alloys in final surfacing metal is controlled by adjusting the content of powder components in the wire, so that a martensite + residual austenite + multi-element alloy composite carborundum compound structure is obtained, the hard phase form and distribution are improved, the wear resistance of an extrusion roller wear-resistant particle is improved, welding material selection is provided for actual surfacing repair work, meanwhile, the technological performance of an open arc self-protection surfacing flux-cored wire is optimized, and surfacing spatter and smoke are reduced.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
the wear-resistant and corrosion-resistant flux-cored wire for the surfacing welding of the hydraulic support component TIG-P (pulse TIG, tungsten electrode pulse argon arc welding) comprises a flux core and a sheath wrapped on the outer side of the flux core, wherein the flux core comprises the following components, by mass, 5% -12% of high-carbon ferrochrome, 2% -8% of high-nitrogen ferrochrome, 15% -26% of metal chromium, 1% -5% of a silicon additive, 1% -4% of a manganese additive, 0.5% -6% of a niobium additive, 0.5% -3% of ferromolybdenum, 0.5% -3% of ferrovanadium, 12% -24% of copper powder, 0.5% -8% of a boron additive, 1% -3% of a titanium additive, 1% -5% of rare earth, 0.5% -3% of an arc stabilizer and the balance iron powder, wherein the sum of the mass fractions of the components is 100%.
Preferably, in the high-carbon ferrochrome, the carbon content is 8.0-9.0 wt%, the chromium content is 60.0-70.0 wt%, and the balance is iron; the high-nitrogen ferrochrome contains 8-9 wt% of nitrogen, 60.0-70.0 wt% of chromium and the balance of iron. More preferably, the high-carbon ferrochrome contains 9.0 wt% of carbon, 60.0 wt% of chromium and the balance of iron; the high-nitrogen ferrochrome contains 8.7 wt% of nitrogen, 62.5 wt% of chromium and the balance of iron.
Preferably, in the medicine core, the granularity of each component is 60 meshes to 200 meshes; the sheath is a 304 stainless steel band.
Preferably, the silicon additive is 75#One or more of ferrosilicon, rare earth ferrosilicon, silicon carbide and silicon-manganese alloy; the manganese additive is one or more than two of electrolytic manganese, silicon-manganese alloy and high-carbon ferromanganese.
Preferably, the niobium additive is one or more of niobium powder, ferrocolumbium and niobium carbide; the boron additive is one or more than two of ferroboron, boron carbide and titanium boron alloy.
Preferably, the titanium additive is one or more of ferrotitanium, titanium carbide and titanium boron alloy; the rare earth additive is one or more of rare earth oxide, rare earth fluoride and rare earth ferrosilicon; wherein the rare earth element is lanthanum or cerium.
Preferably, the arc stabilizer is one of potassium fluoride and sodium fluoride.
Preferably, the diameter of the flux-cored wire is 1.2 mm; the flux core accounts for 16-22% of the total weight of the welding wire.
The welding wire is obtained by rolling a 304 stainless steel strip to form a U-shaped groove, uniformly mixing and baking medicinal powder, adding the medicinal powder, and rolling, drawing and reducing the diameter.
The invention also provides application of the wear-resistant and corrosion-resistant flux-cored wire in TIG-P surfacing of a hydraulic support component.
The invention also provides application of the wear-resistant and corrosion-resistant flux-cored wire on the Q235 base metal.
Wherein, the action effects of the elements in the invention are as follows:
c: forming carbide with alloy elements such as Cr, Mo, Nb, V and the like, and increasing the hardness and wear resistance of the surfacing metal along with the increase of the addition amount of the powder; however, too high C content increases brittleness of the alloy layer and decreases impact toughness, and the carbide is a strong cathode phase of the matrix structure, which accelerates electrochemical corrosion of the weld metal and the base metal.
N: the nitrogen is used as interstitial atoms, can be dissolved in a matrix in a solid mode, can also interact with alloy elements such as Ti, V, Nb, Cr and the like to generate a large amount of fine and dispersed nitrides or carbonitrides, and effectively improves the hardness, creep resistance, toughness, wear resistance and corrosion resistance of the surfacing alloy.
B: forming a low-melting-point compound, enlarging a liquid-phase temperature area, and reducing the integral melting point of the medicinal powder; meanwhile, slagging is carried out, the content of alloy impurities is reduced, and good combination with the parent metal is promoted. In addition, boron exists as interstitial atoms and can directly form boride through interaction with alloying elements, and the high-hardness boride can strengthen a matrix.
Si and Mn: silicon and manganese are the most commonly used alloying elements of the iron-based wear-resistant material and are dissolved in a matrix to improve the strength of the matrix; the deoxidizer has high affinity with O, is a good deoxidizer, is favorable for reducing the oxygen content in a welding line, and prevents CO pores from being generated.
Cr: chromium can interact with carbon and boron to generate carbide (Cr) with higher hardness3(C,B)，Cr7(C,B)3And Cr23(C,B)6) The carbides can play a role of a wear-resistant phase, so that the wear resistance of the surfacing layer is obviously improved; moreover, chromium can be dissolved in the matrix in a solid manner, and the hardenability, hardness, wear resistance and corrosion resistance of the matrix structure are improved.
Mo and V: the content of molybdenum and vanadium is increased, so that the grain of the surfacing metal is refined, and the hardenability and the heat strength are improved; meanwhile, the alloy is a strong carbide forming element, so that the carbon concentration distribution of the melt can be changed, and the toughness of the alloy is improved.
Ti can preferentially precipitate TiC phase particles with the melting point as high as 3150 ℃ and the microhardness of 3200HV in situ in a liquid phase; fixing free C atoms in the weld overlay metal reduces the probability of brittle eutectic formation. However, when the Ti is excessively added, the primary wear-resistant phase of primary M2B in the alloy structure is reduced or even disappears, and the wear resistance of the surfacing alloy is further reduced.
Nb: niobium is dissolved in surfacing metal to delay the transformation from A to F in the cooling process and refine crystal grains; in addition, the appropriate ratio of Nb to B has a significant influence on the solid solution amount of Nb, and the comprehensive performance of the surfacing layer can be optimized.
Cu: the increase of the Cu content promotes the generation of small-particle Cu-rich coherent precipitation precipitated phases in the crystal, enhances the component density and the fatigue resistance of the surfacing metal alloy, and is beneficial to improving the wear resistance in sulfur, acid and salt environments.
Rare earth elements: a small amount of RE has the functions of refining crystal grains, purifying impurities S and P and improving the high-temperature oxidation resistance of surfacing metal; however, when the amount of the rare earth added is too large, the weld overlay is easy to loose and the hardness is reduced.
Compared with the prior art, the wear-resistant and corrosion-resistant flux-cored wire for TIG-P surfacing of the hydraulic support component has the following advantages:
(1) the wear-resistant and corrosion-resistant flux-cored wire for TIG-P surfacing of the hydraulic support component is prepared by adding carbide, nitride and boride into the components and improving the crystalline phase composition of a cladding alloy, so that the high-wear-resistant carbon, nitrogen and boron compound is uniformly dispersed in the alloy structure, the synergistic effect is realized, and the wear resistance and hardness of the surfacing layer are greatly improved.
(2) According to the wear-resistant and corrosion-resistant flux-cored wire for TIG-P surfacing of the pressure support component, the rare earth elements cerium and lanthanum play roles in purifying grain boundaries and refining grains, and are beneficial to eliminating crystal cracks and improving the toughness of weld metal.
(3) The wear-resistant and corrosion-resistant flux-cored wire for TIG-P surfacing of the hydraulic support component can allow multi-element alloy powder to participate in the alloying process of surfacing metal, has the effect of solid solution strengthening, improves the hardness and corrosion resistance of a welding joint, and has better synergistic effect with Cr in the components.
(4) The wear-resistant and corrosion-resistant flux-cored wire for TIG-P surfacing of the hydraulic support component has the advantages that the dosage ratio of each component in the flux is reasonable, and the melting temperature and the solidification point of the powder are close to those of the outer skin; the flux-cored wire has no large amount of slag-making substances required to be added by a common flux-cored wire, improves the deposition efficiency, reduces smoke dust and splash, and has good adaptability of a surfacing process.
(5) According to the invention, the welding wire controls the components of the surfacing metal through the components and the content of the powder, so that small-particle Cu-rich coherent precipitation precipitated phases are generated in the crystal, a matrix structure with martensite as the main structure of the surfacing alloy, a small amount of residual austenite and precipitation hardening precipitated phases are obtained, the hardness and the corrosion resistance of the surfacing metal are effectively improved, and the surfacing metal is suitable for surfacing repair of coal mining hydraulic support components (such as upright post piston rods, oil cylinders and the like) which are in service for a long time in coal gangue impact and coal mine environment medium corrosion environments.
(6) The invention is suitable for surfacing manufacture and repair of parts and equipment with high requirements on wear resistance and corrosion resistance, and is particularly suitable for parts such as upright post piston rods, oil cylinders and the like of hydraulic supports.
Detailed Description
Unless defined otherwise, technical terms used in the following examples have the same meanings as commonly understood by one of ordinary skill in the art to which the present invention belongs. The test reagents used in the following examples, unless otherwise specified, are all conventional biochemical reagents; the experimental methods are conventional methods unless otherwise specified.
The present invention will be described in detail with reference to examples.
In the following examples, the high carbon ferrochrome contains 9.0 wt% of carbon, 60.0 wt% of chromium, and the balance of iron; the high-nitrogen ferrochrome contains 8.7 wt% of nitrogen, 62.5 wt% of chromium and the balance of iron.
Example 1
A wear-resistant and corrosion-resistant flux-cored wire for TIG-P surfacing of a hydraulic support component comprises a flux core and a 304 stainless steel strip coated on the outer side of the flux core, wherein the flux core accounts for 17% of the total weight of the wire;
the medicine core comprises the following components in percentage by weight:
8 percent of high-carbon ferrochrome,
3 percent of high-nitrogen ferrochrome,
20 percent of metal chromium,
3% of silicon additive: 75#The silicon iron is a mixture of silicon iron,
3% of manganese additive: electrolytic manganese and high-carbon ferromanganese with the mass ratio of 3:1,
3% of niobium additive: the niobium-iron alloy is formed by mixing niobium-iron,
2 percent of ferromolybdenum,
1 percent of ferrovanadium
15 percent of copper powder,
2% of boron additive: the iron and boron compound is a compound of boron,
1% of titanium additive: the iron and the titanium are mixed,
3% of rare earth additive: oxide of rare earth element cerium: the amount of the cerium oxide is such that,
2% of arc stabilizer: potassium titanate
34 percent of iron powder,
the diameter of the welding wire is 1.2 mm.
The welding wire is obtained by rolling 304 stainless steel to form a U-shaped groove, uniformly mixing and baking the medicinal powder, adding the medicinal powder, and rolling, drawing and reducing the diameter.
Example 2
A wear-resistant and corrosion-resistant flux-cored wire for TIG-P surfacing of a hydraulic support component comprises a flux core and a 304 stainless steel strip coated on the outer side of the flux core, wherein the flux core accounts for 19% of the total weight of the wire;
the medicine core comprises the following components in percentage by weight:
12 percent of high-carbon ferrochrome,
2 percent of high-nitrogen ferrochrome,
24 percent of metal chromium,
3% of silicon additive: 75#The silicon iron is a mixture of silicon iron,
3% of manganese additive: electrolytic manganese and high-carbon ferromanganese with the mass ratio of 3:1,
6% of niobium additive: the niobium-iron alloy is formed by mixing niobium-iron,
1 percent of ferromolybdenum,
1 percent of ferrovanadium
The copper powder content is 22%,
4% of boron additive: the iron and boron compound is a compound of boron,
2% of titanium additive: the iron and the titanium are mixed,
3% of rare earth additive: oxide of rare earth element cerium: the amount of the cerium oxide is such that,
2% of arc stabilizer: potassium fluoride
15 percent of iron powder,
the diameter of the welding wire is 1.2 mm.
The welding wire is obtained by rolling 304 stainless steel to form a U-shaped groove, uniformly mixing and baking the medicinal powder, adding the medicinal powder, and rolling, drawing and reducing the diameter.
Example 3
The wear-resistant and corrosion-resistant flux-cored wire for the TIG-P surfacing of the hydraulic support component comprises a flux core and a 304 stainless steel strip coated on the outer side of the flux core, wherein the flux core comprises the following components in parts by weight: the proportion of the core in the total weight of the welding wire is 21 percent;
the medicine core comprises the following components in percentage by weight:
10 percent of high-carbon chromium-iron,
8 percent of high-nitrogen ferrochrome,
the content of the metal chromium is 22 percent,
3% of silicon additive: 75#The silicon iron is a mixture of silicon iron,
3% of manganese additive: electrolytic manganese and high-carbon ferromanganese with the mass ratio of 3:1
2% of niobium additive: the niobium-iron alloy is formed by mixing niobium-iron,
2 percent of ferromolybdenum,
2 percent of ferrovanadium
The content of copper powder is 24%,
6% of boron additive: the iron and boron compound is a compound of boron,
2% of titanium additive: the iron and the titanium are mixed,
5% of rare earth additive: oxide of rare earth element cerium: the amount of the cerium oxide is such that,
2% of arc stabilizer: potassium titanate
9 percent of iron powder,
the diameter of the welding wire is 1.2 mm.
The welding wire is obtained by rolling 304 stainless steel to form a U-shaped groove, uniformly mixing and baking the medicinal powder, adding the medicinal powder, and rolling, drawing and reducing the diameter.
Test of
The flux-cored wires prepared in examples 1 to 3 were subjected to TIG-P bead welding for 10 layers on a Q235 base metal, and the metal component of the bead welding was ensured to be a pure deposited metal. The surfacing specifications are shown in table 1.
TABLE 1 TIG-P surfacing Specification for flux-cored wire
| Pulse current | Pilot arc current | Frequency of pulses | Pulse width ratio | Argon flow | Speed of build-up welding | Diameter of tungsten electrode |
| 120A | 31A | 5 | 0.4 | 14L/min | 200mm/min | 4.0mm |
1. Hardness test
The weld overlay hardness was measured using a Brookfield hardness tester HBRV-187.5, taking 10 hardness points for each weld overlay of the example, and obtaining the average Rockwell hardness values for the weld overlay of the example, as specified in Table 2.
Table 2 examples 1-3 deposited metal hardness table for build-up welding
| Examples | Example 1 | Example 2 | Example 2 |
| HRC (hardness of metal) of surfacing | 45 | 48 | 50 |
2. Abrasive wear resistance test
The abrasion resistance test was carried out on an MLS-23 model wet sand rubber wheel type abrasive abrasion tester. The weld deposit metal layer of each example was cut into 6 wear specimens having dimensions of 57 × 25 × 6 (mm). The wear test parameters were as follows: diameter of the rubber wheel: 178mm, rubber wheel speed: 250r/min, rubber wheel hardness: 60 (shore hardness), load: 250N, rubber wheel revolution: pre-grinding for 500r, rotating for a formal test for 3000r, and grinding: 1500g of 50-70 meshes quartz sand and 1000g of tap water. The wear resistance of the surfacing metal is measured by the weight loss of formal wear. The samples were placed in a beaker with acetone solution before and after each experiment, cleaned in an ultrasonic cleaner for 5-6 minutes, and weighed and recorded after drying. Q235 steel is used as a comparison sample for experiments, the ratio of the weight loss of the comparison piece to the weight loss of the measurement piece is used as the relative wear resistance epsilon of the surfacing sample, and the specific numerical values are shown in Table 3.
TABLE 3 examples 1-3 relative wear resistance to abrasive wear of deposited metal abrasive grains
| Examples | Example 1 | Example 2 | Example 2 |
| Relative abrasion resistance ε (compare with Q235) | 12 | 14 | 18 |
3. Corrosive wear performance test
In the corrosive wear test, an MSH type free abrasive corrosive wear tester was used, and 6 wear test pieces each having a size of 25 × 25 × 25(mm) were cut from the deposited metal layer of each example, and hung on a test stand, and the test pieces were rotated to collide with a corrosive abrasive freely suspended in mortar, thereby generating corrosive wear. The mortar comprises the following components: 800g of quartz sand, 2000mL of distilled water and 0.25mol/L H2SO4 solution; the corrosive wear time is 2 hours; the diameter of the disc is 10cm, and the rotating speed is 4 m/s. The samples were placed in a beaker with acetone solution before and after each experiment, cleaned in an ultrasonic cleaner for 5-6 minutes, and weighed and recorded after drying. The experimental precipitation hardening stainless steel 17-4PH steel is used as a comparison sample, the ratio of the weight loss of the comparison piece to the weight loss of the measurement piece is used as the relative wear resistance epsilon of the surfacing sample, and the specific numerical values are shown in Table 4.
TABLE 4 examples 1-3 deposited metal corrosion wear relative abrasion resistance
| Examples | Example 1 | Example 2 | Example 2 |
| Relative abrasion resistance ε (compare 17-4PH stainless steel) | 2.5 | 2.7 | 3.5 |
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The utility model provides a wear-resisting anticorrosive flux-cored wire for TIG-P build-up welding of hydraulic support part which characterized in that: the flux core comprises the following components, by mass, 5% -12% of high-carbon ferrochrome, 2% -8% of high-nitrogen ferrochrome, 15% -26% of metal chromium, 1% -5% of silicon additive, 1% -4% of manganese additive, 0.5% -6% of niobium additive, 0.5% -3% of ferromolybdenum, 0.5% -3% of ferrovanadium, 12% -24% of copper powder, 0.5% -8% of boron additive, 1% -3% of titanium additive, 1% -5% of rare earth additive, 0.5% -3% of arc stabilizer and the balance iron powder, wherein the sum of the mass fractions of the components is 100%.
2. The wear-resistant and corrosion-resistant flux-cored wire for TIG-P surfacing of hydraulic support components according to claim 1, characterized in that: in the high-carbon ferrochrome, the carbon content is 8.0 to 9.0 weight percent, the chromium content is 60.0 to 70.0 weight percent, and the balance is iron; the high-nitrogen ferrochrome contains 8-9 wt% of nitrogen, 60.0-70.0 wt% of chromium and the balance of iron.
3. The wear-resistant and corrosion-resistant flux-cored wire for TIG-P surfacing of hydraulic support components according to claim 1, characterized in that: in the medicine core, the granularity of each component is 60-200 meshes; the sheath is a 304 stainless steel band.
4. According to the rightThe wear-resistant and corrosion-resistant flux-cored wire for TIG-P surfacing of the hydraulic support component in claim 1 is characterized in that: the silicon addition is 75#One or more of ferrosilicon, rare earth ferrosilicon, silicon carbide and silicon-manganese alloy; the manganese additive is one or more than two of electrolytic manganese, silicon-manganese alloy and high-carbon ferromanganese.
5. The wear-resistant and corrosion-resistant flux-cored wire for TIG-P surfacing of hydraulic support components according to claim 1, characterized in that: the niobium additive is one or more than two of niobium powder, ferrocolumbium and niobium carbide; the boron additive is one or more than two of ferroboron, boron carbide and titanium boron alloy.
6. The wear-resistant and corrosion-resistant flux-cored wire for TIG-P surfacing of hydraulic support components according to claim 1, characterized in that: the titanium additive is one or more than two of ferrotitanium, titanium carbide and titanium boron alloy; the rare earth additive is one or more of rare earth oxide, rare earth fluoride and rare earth ferrosilicon; wherein the rare earth element is lanthanum or cerium.
7. The wear-resistant and corrosion-resistant flux-cored wire for TIG-P surfacing of hydraulic support components according to claim 1, characterized in that: the arc stabilizer is one of potassium fluoride and sodium fluoride.
8. The wear-resistant and corrosion-resistant flux-cored wire for TIG-P surfacing of hydraulic support components according to claim 1, characterized in that: the diameter of the flux-cored wire is 1.2 mm; the flux core accounts for 16-22% of the total weight of the welding wire.
9. Use of a wear and corrosion resistant flux cored welding wire according to any one of claims 1 to 8 in TIG-P surfacing of hydraulic support components.
10. Use of the wear and corrosion resistant flux cored welding wire of any one of claims 1 to 8 on a Q235 base metal.
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| CN113878262B (en) * | 2021-11-09 | 2023-03-21 | 北京工业大学 | High-boron iron-based alloy wear-resistant welding wire and using method thereof |
| CN114248040B (en) * | 2021-12-20 | 2023-03-10 | 武汉铁锚焊接材料股份有限公司 | High-strength anti-crack metal powder cored flux-cored wire for engineering machinery |
| CN115948738A (en) * | 2022-12-27 | 2023-04-11 | 西安智能再制造研究院有限公司 | Application of laser cladding welding wire in hydraulic support stand column |
| CN115815868B (en) * | 2023-02-20 | 2023-06-23 | 天津市金桥焊材科技有限公司 | Fe-based high-temperature surfacing flux-cored wire |
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| CN108994425B (en) * | 2018-07-16 | 2020-12-15 | 中冶建筑研究总院有限公司 | Self-protection flux-cored wire for composite (re) manufacturing continuous casting roller and process |
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| CN100999041A (en) * | 2006-12-28 | 2007-07-18 | 燕山大学 | Series flux cord welding rod used for pile-up welding reparing and remanufacturing large type medium high carbon steel parts |
| CN106475706A (en) * | 2016-10-26 | 2017-03-08 | 四川大西洋焊接材料股份有限公司 | Exempt from application bridge steel weather-proof flux-cored wire and preparation method thereof |
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Effective date of registration: 20230106 Address after: 300300 Liujing Road, development zone, Dongli District, Tianjin Patentee after: TIANJIN YONGCHANG WELDING WIRES Co.,Ltd. Patentee after: Tianjin Jinqiao New Materials Co.,Ltd. Address before: 300300 Liujing Road, development zone, Dongli District, Tianjin Patentee before: TIANJIN YONGCHANG WELDING WIRES Co.,Ltd. |