CN113290337A - Hard alloy wear-resistant sintered welding rod and preparation method thereof - Google Patents
Hard alloy wear-resistant sintered welding rod and preparation method thereof Download PDFInfo
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- CN113290337A CN113290337A CN202110527914.3A CN202110527914A CN113290337A CN 113290337 A CN113290337 A CN 113290337A CN 202110527914 A CN202110527914 A CN 202110527914A CN 113290337 A CN113290337 A CN 113290337A
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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
- B23K35/32—Selection of soldering or welding materials proper with the principal constituent melting at more than 1550 degrees C
- B23K35/327—Selection of soldering or welding materials proper with the principal constituent melting at more than 1550 degrees C comprising refractory compounds, e.g. carbides
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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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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/05—Mixtures of metal powder with non-metallic powder
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/05—Mixtures of metal powder with non-metallic powder
- C22C1/051—Making hard metals based on borides, carbides, nitrides, oxides or silicides; Preparation of the powder mixture used as the starting material therefor
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C19/00—Alloys based on nickel or cobalt
- C22C19/03—Alloys based on nickel or cobalt based on nickel
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C26/00—Alloys containing diamond or cubic or wurtzitic boron nitride, fullerenes or carbon nanotubes
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
- C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
- C22C29/06—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
- C22C29/067—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds comprising a particular metallic binder
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
- C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
- C22C29/06—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
- C22C29/08—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
- C23C4/06—Metallic material
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
- C23C4/129—Flame spraying
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Abstract
The invention discloses a hard alloy wear-resistant sintered welding rod and a preparation method thereof, wherein the hard alloy wear-resistant sintered welding rod comprises the following raw materials in parts by weight: 0.2-3.0 parts of diamond particles, 15-50 parts of tungsten carbide hard alloy spherulites, 10-50 parts of spherical cast tungsten carbide particles and 30-60 parts of nickel-based alloy powder; mixing all the raw materials and sintering to obtain the product. The hard alloy wear-resistant sintered welding rod provided by the invention has good welding performance and wear resistance.
Description
Technical Field
The invention relates to the technical field of wear-resistant materials, in particular to a hard alloy wear-resistant sintered welding rod and a preparation method thereof.
Background
The steel body drill bit and roller bit are well drilling tools widely used in stratum well drilling engineering, the matrix of the drill bit is high-quality structural steel, the steel body drill bit is composed of a bit body, cutting teeth, a wear-resistant layer, a gauge protection structure, a hydraulic structure and the like, and the cutting teeth of the steel body drill bit contact stratum rocks to extrude the stratum rocks and shear the stratum rocks to break the rocks. In order to prevent the diameter reduction of the drill bit caused by the abrasion of stratum rocks during the operation of the steel body drill bit, namely the diameter reduction, the prior art is to inlay a certain amount of hard alloy at the positions of the gauge of the drill bit, the blades and the like or weld a layer of wear-resistant material, so that the service life of the gauge of the drill bit is prolonged, and the blade parts are protected.
The blade and gauge surface of steel body drill bits are often enhanced by oxyacetylene flame cladding with a wear resistant welding rod. The types of wear-resistant welding rods include tubular welding rods, flexible welding ropes and sintered welding rods. The cutter wing and the gauge protection part of the steel body drill bit are subjected to full-face surfacing welding, so that the wear resistance of the gauge protection and the cutter wing is improved, but the surfacing welding process is high in operation difficulty and is limited by the operation level of a welder, and higher requirements are provided for the welding manufacturability of a welding rod. Compared with the three types of welding rods, the tubular welding rod has the best cost performance, but has poor welding performance, and the welding layer has the problems of easy occurrence of pores, uneven surface and the like; although the flexible welding rope has better welding process performance, the flexible welding rope has the defects of high storage condition and easy influence on welding performance due to moisture; the sintered electrode has the advantages of good welding process, simple storage condition and excellent wear resistance, and is favored by users. However, with the development of modern drilling technology, higher requirements are put on the footage and the mechanical drilling speed of a drill bit, and the improvement of the performance of a sintered electrode to improve the wear resistance of the tooth surface of the drill bit is one of the key problems to meet the higher requirements.
Disclosure of Invention
The invention solves the technical problem of providing a hard alloy wear-resistant sintered welding rod and a preparation method thereof, the sintered welding rod has high hardness and good wear resistance, can be used for welding a wear-resistant layer and reinforcing the surfaces of other steel materials, and is particularly suitable for reinforcing the surfaces of steel body drill bits and roller bit bits.
In order to solve the technical problems, the invention adopts the technical scheme that:
the hard alloy wear-resistant sintered welding rod comprises the following raw materials in parts by weight: 0.2-3.0 parts of diamond particles, 15-50 parts of tungsten carbide hard alloy spherulites, 10-50 parts of spherical cast tungsten carbide particles and 30-60 parts of nickel-based alloy powder.
Further, the raw materials comprise the following components in parts by weight: 0.5-2 parts of diamond particles, 20-40 parts of tungsten carbide hard alloy spherulites, 10-40 parts of spherical cast tungsten carbide particles and 35-50 parts of nickel-based alloy powder.
Further, the raw materials comprise the following components in parts by weight: 0.5-1.5 parts of diamond particles, 20-40 parts of tungsten carbide hard alloy spherulites, 20-25 parts of spherical cast tungsten carbide particles and 35-45 parts of nickel-based alloy powder.
The sintered welding rod of the invention introduces the superhard material diamond particles, and the inventor finds that the diamond and the common metal have high interface energy and are difficult to weld; the diamond is coated with W, Ti, Ni and Cr, so that the interface of the diamond superhard abrasive particles can form chemical metallurgical bonding at the metal brazing filler metal, the holding strength of the diamond abrasive particles can be improved, and the welding performance of a sintering material is improved; further, the metal powder is selected from one or more of W, Ti, Ni and Cr;
further, the granularity of the diamond particles is 20-60 meshes.
In one embodiment of the invention, the tungsten carbide hard alloy spherical particle contains 5-8% of cobalt, 5.2-5.9% of carbon and 86-89% of tungsten;
the granularity of the tungsten carbide hard alloy spherulites is 10-40 meshes.
In a specific embodiment of the invention, the tungsten content in the spherical cast tungsten carbide particles is more than or equal to 95.0%, and the carbon content is 3.8-4.1%;
the granularity of the spherical casting tungsten carbide particles is 40-200 meshes.
In a specific embodiment of the invention, the nickel-based alloy powder is Ni-Cr-B-Si self-fluxing alloy powder; the Ni-Cr-B-Si system self-fluxing alloy powder is selected from one of FZNi-25, FZNi-35, FZNi-45, FZNi-55 and FZNi-60; in order to ensure the wear resistance, the Ni-Cr-B-Si self-fluxing alloy powder is FZNi-60.
In a specific embodiment of the invention, the nickel-based alloy powder comprises the following chemical components in percentage by mass: 70-85% of nickel, 5-15% of chromium, 1-5% of boron, 1-5% of silicon and 1-5% of iron;
preferably comprises the following chemical components in percentage by mass: 81% of nickel, 10% of chromium, 2.5% of boron, 3.5% of silicon and 3% of iron.
The invention also provides a preparation method of the hard alloy wear-resistant sintered welding rod, which comprises the following steps: mixing all the raw materials, and sintering.
In a specific embodiment of the present invention, the sintering is vacuum sintering; further, the sintering temperature is 800-1500 ℃, and the sintering time is 20-100 min;
furthermore, the sintering temperature is 1000-1200 ℃, and the sintering time is 30-60 min.
In the present invention, "%" is mass%.
The granularity of the raw materials in the invention is screened according to ISO standard.
Compared with the prior art, the invention has the following beneficial effects:
the outline dimension of the hard alloy wear-resistant sintered welding rod is related to the used mould, the section of the hard alloy wear-resistant sintered welding rod can be cylindrical, square and the like, the dimension phi 2-phi 6, the length: 100 mm-700 mm, the interior is solid material, the hard phase is hard alloy tungsten carbide particles, the binder phase is nickel-based self-fluxing alloy, the melting point is low, about 900-1100 ℃, and the wettability with steel is good, so that the sintered welding rod has good welding performance, the hardness of a surfacing welding layer is high, the wear resistance is good, and the surfacing welding layer can be used for surface coating and surface reinforcement of steel materials, and is particularly suitable for surface reinforcement of steel body drill bits and roller cone drill bits.
Drawings
FIG. 1 is an external view of a product of the present invention;
FIG. 2 is a graph showing the wear of sintered electrodes obtained with different composition ratios.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings and embodiments, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The granularity of the invention is screened according to ISO standard.
Example 1
The material proportion of the sintered welding rod is as follows by weight percent: 1% of diamond particles (the surface of the diamond particles is coated with W, Ti, Ni or Cr, the mass of the coated metal accounts for 1% -5%), the granularity is 40-60 meshes, 30% of tungsten carbide hard alloy spherulites, the granularity of the tungsten carbide hard alloy spherulites is 16-40 meshes, 24% of spherical cast tungsten carbide particles are 40-200 meshes, 45% of nickel-based alloy powder is prepared from the following components in percentage by weight: 81% of nickel, 10% of chromium, 2.5% of boron, 3.5% of silicon and 3% of iron, mixing all the raw materials, then sintering in vacuum at the sintering temperature of 1100 ℃ for 50min, and obtaining the solid sintered welding rod with the diameter of phi 5 after sintering.
Example 2
The material proportion of the sintered welding rod is as follows by weight percent: 0.5% of diamond particles (the surface of the diamond particles is coated with W, Ti, Ni or Cr, the mass of the coated metal accounts for 1% -5%), 40-60 meshes of granularity, 39.5% of tungsten carbide hard alloy spherulites, 16-40 meshes of granularity of the tungsten carbide hard alloy spherulites, 20% of spherical cast tungsten carbide particles, 40-200 meshes of granularity of the spherical cast tungsten carbide particles, 40% of nickel-based alloy powder, and the nickel-based alloy powder comprises the following components in percentage by weight: 81% of nickel, 10% of chromium, 2.5% of boron, 3.5% of silicon and 3% of iron, mixing all the raw materials, then sintering in vacuum at the sintering temperature of 1200 ℃ for 30min, and obtaining the solid sintered welding rod with the diameter of phi 6 after sintering.
Example 3
The material proportion of the sintered welding rod is as follows by weight percent: 1.5% of diamond particles (the surface of the diamond particles is coated with W, Ti, Ni or Cr, the mass of the coated metal accounts for 1% -5%), 40-60 meshes of granularity, 38.5% of tungsten carbide hard alloy spherulites, 16-40 meshes of granularity of the tungsten carbide hard alloy spherulites, 25% of spherical cast tungsten carbide particles, 40-200 meshes of granularity of the spherical cast tungsten carbide particles, 35% of nickel-based alloy powder, and the nickel-based alloy powder comprises the following components in percentage by weight: 81% of nickel, 10% of chromium, 2.5% of boron, 3.5% of silicon and 3% of iron, mixing all the raw materials, then sintering in vacuum at the sintering temperature of 1000 ℃ for 60min, and obtaining the solid sintered welding rod with the diameter of phi 5 after sintering.
The outline dimension of the hard alloy wear-resistant sintered welding rod is related to the used mould, the section of the hard alloy wear-resistant sintered welding rod can be cylindrical, square and the like, the dimension phi 2-phi 6, the length: 100 mm-700 mm; the welding rod of the invention has the advantages that the interior of the welding rod is made of solid materials, the hard phase is hard alloy tungsten carbide particles, the binding phase is nickel-based self-fluxing alloy, the melting point is low, the temperature is about 900-1100 ℃, and the wettability with steel is good, so that the sintered welding rod has good welding performance.
Comparative example 1
The material proportion of the sintered welding rod is as follows by weight percent: 0.5% of diamond particles (the surface of the diamond particles is coated with W or Ti or Ni or Cr), the granularity is 40-60 meshes, 25% of tungsten carbide hard alloy particles are 16-40 meshes, 24.5% of spherical cast tungsten carbide particles are 40-200 meshes, 50% of nickel-based alloy powder is prepared from the following components in percentage by weight: 81% of nickel, 10% of chromium, 2.5% of boron, 3.5% of silicon and 3% of iron, mixing all the raw materials, then sintering in vacuum at the sintering temperature of 1100 ℃ for 50min, and obtaining the solid sintered welding rod with the diameter of phi 5 after sintering.
Comparative example 2
The material proportion of the sintered welding rod is as follows by weight percent: 25% of tungsten carbide hard alloy spherulites, the granularity of the tungsten carbide hard alloy spherulites is 16-40 meshes, 20% of spherical cast tungsten carbide particles, the granularity of the spherical cast tungsten carbide particles is 40-200 meshes, 55% of nickel-based alloy powder, and the nickel-based alloy powder comprises the following components in percentage by weight: 81% of nickel, 10% of chromium, 2.5% of boron, 3.5% of silicon and 3% of iron, mixing all the raw materials, then sintering in vacuum at the sintering temperature of 1100 ℃ for 50min, and obtaining the solid sintered welding rod with the diameter of phi 5 after sintering.
Comparative example 3
The material proportion of the sintered welding rod is as follows by weight percent: 1% of diamond particles (the surface of the diamond particles is coated with W, Ti, Ni or Cr, the mass of the coated metal accounts for 1% -5%), the granularity is 40-60 meshes, 30% of tungsten carbide hard alloy spherulites, the granularity of the tungsten carbide hard alloy spherulites is 16-40 meshes, 24% of spherical cast tungsten carbide particles are 40-200 meshes, 45% of nickel-based alloy powder is prepared from the following components in percentage by weight: 81% of nickel, 10% of chromium, 2.5% of boron, 3.5% of silicon and 3% of iron, mixing all the raw materials, then sintering in vacuum at the sintering temperature of 800 ℃ for 20min, and obtaining the solid sintered welding rod with the diameter of phi 5 after sintering.
Comparative example 4
The material proportion of the sintered welding rod is as follows by weight percent: 1% of diamond particles (the surface of the diamond particles is coated with W, Ti, Ni or Cr, the mass of the coated metal accounts for 1% -5%), the granularity is 40-60 meshes, 30% of tungsten carbide hard alloy spherulites, the granularity of the tungsten carbide hard alloy spherulites is 16-40 meshes, 24% of spherical cast tungsten carbide particles are 40-200 meshes, 45% of nickel-based alloy powder is prepared from the following components in percentage by weight: 81% of nickel, 10% of chromium, 2.5% of boron, 3.5% of silicon and 3% of iron, mixing all the raw materials, then sintering in vacuum at 1300 ℃ for 70min to obtain the solid sintered welding rod with the diameter phi 5 after sintering.
The sintered electrodes obtained in example 1 and comparative examples 1 and 2 were cut to 57mm × 26mm for an abrasive wear test, an abrasive wear test according to ASTM B611 standard. The wear evaluation of the abrasive grains of the sample piece was determined by weight loss before and after wear, and the results are shown in fig. 2 and table 1:
TABLE 1
As can be seen from table 1, fig. 1 and 2, the sintered electrode layer of example 1 of the present invention is superior to those of comparative examples 1 to 4 in terms of wear resistance of abrasive grains, welding performance and degree of removal of mold.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The hard alloy wear-resistant sintered welding rod is characterized by comprising the following raw materials in parts by weight: 0.2-3 parts of diamond particles, 15-50 parts of tungsten carbide hard alloy spherulites, 10-50 parts of spherical cast tungsten carbide particles and 30-60 parts of nickel-based alloy powder.
2. The cemented carbide wear-resistant sintered electrode according to claim 1, characterized in that its raw materials comprise the following components in parts by weight: 0.5-2 parts of diamond particles, 20-40 parts of tungsten carbide hard alloy spherulites, 10-40 parts of spherical cast tungsten carbide particles and 35-50 parts of nickel-based alloy powder.
3. The cemented carbide wear-resistant sintered electrode according to claim 1, characterized in that its raw materials comprise the following components in parts by weight: 0.5-1.5 parts of diamond particles, 20-40 parts of tungsten carbide hard alloy spherulites, 20-25 parts of spherical cast tungsten carbide particles and 35-45 parts of nickel-based alloy powder.
4. The hard alloy wear-resistant sintered electrode according to any one of claims 1 to 3, wherein the surface of the diamond particles is coated with a metal powder; further, the metal powder is selected from one or more of W, Ti, Ni and Cr;
further, the granularity of the diamond particles is 20-60 meshes.
5. The cemented carbide wear resistant sintered electrode according to any one of claims 1 to 3, characterized in that the tungsten carbide cemented carbide pellet has a cobalt content of 5 to 8%, a carbon content of 5.2 to 5.9%, and a tungsten content of 86 to 89%;
the granularity of the tungsten carbide hard alloy spherulites is 10-40 meshes.
6. The hard alloy wear-resistant sintered welding rod according to any one of claims 1 to 3, wherein the tungsten content in the spherical cast tungsten carbide particles is not less than 95.0%, and the carbon content is 3.8 to 4.1%;
the granularity of the spherical casting tungsten carbide particles is 40-200 meshes.
7. The hard alloy wear-resistant sintered welding rod according to any one of claims 1 to 3, wherein the nickel-based alloy powder is a Ni-Cr-B-Si based self-fluxing alloy powder; the Ni-Cr-B-Si system self-fluxing alloy powder is one selected from FZNi-25, FZNi-35, FZNi-45, FZNi-55 and FZNi-60, and is preferably FZNi-60.
8. The cemented carbide wear-resistant sintered electrode according to claim 7, characterized in that the nickel-based alloy powder comprises the following chemical composition in mass percent: 70-85% of nickel, 5-15% of chromium, 1-5% of boron, 1-5% of silicon and 1-5% of iron;
preferably comprises the following chemical components in percentage by mass: 81% of nickel, 10% of chromium, 2.5% of boron, 3.5% of silicon and 3% of iron.
9. The method for preparing the hard alloy wear-resistant sintered welding rod according to any one of claims 1 to 8, characterized by comprising the following steps: mixing all the raw materials, and sintering.
10. The production method according to claim 9, wherein the sintering is vacuum sintering; further, the sintering temperature is 800-1500 ℃, and the sintering time is 20-100 min;
furthermore, the sintering temperature is 1000-1200 ℃, and the sintering time is 30-60 min.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114083175A (en) * | 2021-11-18 | 2022-02-25 | 郑州机械研究所有限公司 | Strip-shaped solder and preparation method thereof |
| CN115948679A (en) * | 2022-10-26 | 2023-04-11 | 合肥工业大学 | Nickel-based composite material based on diamonds with different qualities and preparation method thereof |
| CN115971495A (en) * | 2022-12-27 | 2023-04-18 | 天津立林钻头有限公司 | Manufacturing method of high-wear-resistance roller bit |
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| CN114083175A (en) * | 2021-11-18 | 2022-02-25 | 郑州机械研究所有限公司 | Strip-shaped solder and preparation method thereof |
| CN115948679A (en) * | 2022-10-26 | 2023-04-11 | 合肥工业大学 | Nickel-based composite material based on diamonds with different qualities and preparation method thereof |
| CN115948679B (en) * | 2022-10-26 | 2024-08-06 | 合肥工业大学 | Nickel-based composite material based on diamonds with different qualities and preparation method thereof |
| CN115971495A (en) * | 2022-12-27 | 2023-04-18 | 天津立林钻头有限公司 | Manufacturing method of high-wear-resistance roller bit |
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| CN113290337B (en) | 2022-08-16 |
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