CN114480906A - Tungsten carbide particle composite wear-resistant steel plate and manufacturing process thereof - Google Patents
Tungsten carbide particle composite wear-resistant steel plate and manufacturing process thereof Download PDFInfo
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- CN114480906A CN114480906A CN202210120103.6A CN202210120103A CN114480906A CN 114480906 A CN114480906 A CN 114480906A CN 202210120103 A CN202210120103 A CN 202210120103A CN 114480906 A CN114480906 A CN 114480906A
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- tungsten carbide
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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
- 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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/02—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite layers
- B22F7/04—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite layers with one or more layers not made from powder, e.g. made from solid metal
-
- 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
- B23K9/00—Arc welding or cutting
- B23K9/18—Submerged-arc welding
-
- 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
- B23K9/00—Arc welding or cutting
- B23K9/235—Preliminary treatment
-
- 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
-
- 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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Composite Materials (AREA)
- Manufacturing & Machinery (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention discloses a tungsten carbide particle composite wear-resistant steel plate which comprises a substrate and an alloy composite layer, wherein the alloy composite layer comprises tungsten carbide particles, atomized iron powder, high-carbon ferrochrome powder, ferrovanadium, ferronickel, ferrocolumbium, ferromanganese, ferromolybdenum and yttrium-based rare earth, the substrate is a steel plate, and the diameter of the tungsten carbide particles is controlled to be 1.5-3.5 mm. The alloy steel plate prepared by the invention has the advantages of high hardness, smooth surface, no crack, no air hole, high tensile strength, high impact toughness and low abrasion degree, is suitable for crushers of massive ores such as large iron ores and copper ores, grab buckets of ore wharf ship unloaders, impact hoppers, protection discs of cutter discs of shield machines and the like, has the service life of 20-30 times that of common steel plates and 3-5 times that of common wear-resisting plates, greatly reduces the production cost and the maintenance cost, and has excellent economic benefit.
Description
Technical Field
The invention relates to the technical field of alloy metal, in particular to a tungsten carbide particle composite wear-resistant steel plate and a manufacturing process thereof.
Background
Tungsten carbide is a compound consisting of tungsten and carbon, and alloy steel prepared by using tungsten carbide can make the steel excellent in performance, and the alloy steel is processed by using a submerged arc welding technology to make the steel better in performance, and a submerged arc welding machine is a welding machine for welding by burning an electric arc under a flux layer. The welding machine has the advantages of stable welding quality, high welding productivity, no arc light, little smoke and the like, and is a main welding machine in the manufacture of pressure vessels, pipe sections, box beam column steel structures and the like. In recent years, although a plurality of efficient and high-quality novel welding machines appear successively, the application field of the submerged arc welding machine is still not influenced at all. Submerged arc welding machines account for about 10% in terms of the share of the weight of the metal deposited by the various fusion welding machines, and have not changed much over the years.
The traditional alloy steel process is formed by powder metallurgy vacuum sintering, so that the performance of an alloy material cannot be improved, the alloy material is influenced by composition elements, the hardness of a generated alloy steel plate is small, the surface is not flat, cracks and air holes can exist, the tensile strength is low, the impact toughness is weak, and the alloy steel plate is easy to wear.
Therefore, we propose a tungsten carbide particle composite wear-resistant steel plate and a manufacturing process thereof to solve the problems.
Disclosure of Invention
The invention aims to provide a tungsten carbide particle composite wear-resistant steel plate and a manufacturing process thereof, and aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the tungsten carbide particle composite wear-resistant steel plate consists of a substrate and an alloy composite layer.
The alloy composite layer is composed of tungsten carbide particles, atomized iron powder, high-carbon ferrochrome powder, ferrovanadium, ferronickel, ferrocolumbium, ferromanganese, ferromolybdenum and yttrium-based rare earth.
The substrate is a steel plate.
Preferably, the steel plate is one of the front and back 235 steel plates or the front and back 345 steel plates.
The diameter of the tungsten carbide particles is controlled to be 1.5-3.5 mm.
In a further embodiment, the weight ratio of tungsten carbide particles, atomized iron powder, high carbon ferrochrome powder, ferrovanadium, ferronickel, ferrocolumbium, ferromanganese, ferromolybdenum, and yttrium-based rare earth is 5.5: 2: 1.5: 0.2: 0.3: 0.15: 0.1: 0.15: 0.1.
in a further embodiment, the alloy composite layer contains the following raw materials per hundred kilograms:
55 kilograms of tungsten carbide granule, 20 kilograms of atomizing iron powder, 15 kilograms of high carbon ferrochrome powder, 2 kilograms of ferrovanadium, 3 kilograms of ferronickel, 1.5 kilograms of ferroniobium, 1 kilogram of ferromanganese, 1.5 kilograms of ferromolybdenum, 1 kilogram of yttrium base rare earth.
The manufacturing process of the tungsten carbide particle composite wear-resistant steel plate comprises the following steps:
the method comprises the following steps: and laying an alloy composite layer on the substrate, and then covering the substrate with a welding flux.
Step two: carrying out submerged arc welding process treatment and cladding by using an arc welding gun, namely flattening and arranging 8 copper arc welding guns, respectively preparing current and voltage, controlling the current to be between 430 and 550A, controlling the voltage to be between 38 and 45V, and controlling the gun distance to be 185 cm.
Step three: and (5) cooling the plate.
Step four: and (4) releasing the protective welding flux.
Compared with the prior art, the invention has the beneficial effects that:
the alloy steel plate prepared by the invention has the advantages of high hardness, smooth surface, no crack, no air hole, high tensile strength, high impact toughness and low abrasion degree, is suitable for crushers of massive ores such as large iron ores and copper ores, grab buckets of ore wharf ship unloaders, impact hoppers, protection discs of cutter discs of shield machines and the like, has the service life of 20-30 times that of common steel plates and 3-5 times that of common wear-resisting plates, greatly reduces the production cost and the maintenance cost, and has excellent economic benefit.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all 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.
The tungsten carbide particle composite wear-resistant steel plate consists of a substrate and an alloy composite layer, wherein the alloy composite layer consists of tungsten carbide particles, atomized iron powder, high-carbon ferrochrome powder, ferrovanadium, ferronickel, ferrocolumbium, ferromanganese, ferromolybdenum and yttrium-based rare earth, the substrate is a steel plate, the alloy composite layer is arranged on the steel plate, welding flux is laid, finally, a submerged arc welding gun is adopted for cladding, the diameter of the tungsten carbide particles is controlled to be 1.5-3.5 mm, and the integrity of the tungsten carbide particles must be kept in the cladding process.
Wherein, the weight ratio of tungsten carbide particles, atomized iron powder, high-carbon ferrochrome powder, ferrovanadium, ferronickel, ferrocolumbium, ferromanganese, ferromolybdenum and yttrium-based rare earth is 5.5: 2: 1.5: 0.2: 0.3: 0.15: 0.1: 0.15: 0.1.
one of the examples
Selecting one of the front and back 235 steel plates or the front and back 345 steel plates as a substrate, wherein the size of the substrate is 3000 x 1500mm, laying an alloy composite layer with the thickness of 6-20mm on the steel plate, and covering a welding flux after the laying is finished so as to play a role in protection;
8 copper submerged arc welding guns are adopted, 8 welding guns are flatly and evenly arranged, the distance between every two welding guns is 185cm, the control speed is 1000mm/min, the current of every welding gun is 430-550A, the voltage is controlled to be 38-45V, 8 welding guns are started simultaneously, arc striking is carried out instantly, heat is generated for cladding, the fusion depth with a substrate is 1.5-3mm, the thickness is 6-20mm, an alloy composite layer cannot be sprayed by flame, the thickness of common laser and flame spraying alloy cannot exceed 3mm, the diameter of tungsten carbide particles is 1.5-3mm, tungsten carbide powder can only be used for flame laser spraying, and the using effect of original tungsten carbide particles cannot be shown;
after cladding, the steel plate is air-cooled for 2-3 hours, the protective welding flux is separated, the tungsten carbide particles on the surface are uniformly distributed, and the surface is flat.
The invention is characterized in that tungsten carbide particles can not be melted in the fusion process, the burn rate is less than or equal to 10 percent, and each tungsten carbide particle in the alloy layer is uniformly distributed.
Test examples
The alloy steel plate is tested, and the test results are as follows:
1. spectral analysis: mn is more than or equal to 0.8, Nb is more than or equal to 0.15, V is more than or equal to 0.15, Cr is more than or equal to 25, Si is more than or equal to 0.7, W is more than or equal to 12, and C is more than or equal to 3.5.
2. Hardness: HRC is more than or equal to 70, and the surface is flat, has no cracks, no air holes and no slag inclusion.
3. The tensile strength is more than or equal to 1600MPa, the impact toughness is more than or equal to 50J, the weight loss in a sliding wear test is less than 0.09 g, and the weight loss in an impact wear test is less than 0.05 g.
Comparative example
The wear-resistant steel plate is prepared from tungsten carbide particles consisting of a substrate and an alloy composite layer, wherein the alloy composite layer still consists of tungsten carbide particles, atomized iron powder, high-carbon ferrochromium powder, ferrovanadium, ferronickel, ferrocolumbium, ferromanganese, ferromolybdenum and yttrium-based rare earth, and the substrate still is a steel plate.
And similarly, a 45# steel plate is selected as a substrate, the size of the substrate is 3000 x 1500mm, an alloy composite layer with the thickness of 6-20mm is paved on the steel plate, then the steel plate is treated by adopting a flame spraying process, and finally the steel plate is cooled.
The alloy steel plate is tested, and the test results are as follows:
1. spectral analysis: mn is less than or equal to 0.6, Nb is less than or equal to 0.13, V is less than or equal to 0.11, Cr is less than or equal to 3.7, Si is less than or equal to 0.8, W is less than or equal to 2.3, and C is less than or equal to 3.0.
2. Hardness: HRC is less than or equal to 54, certain air holes exist on the surface, particles are protruded, and the flatness is poor.
3. The tensile strength is less than or equal to 1400MPa, the impact toughness is less than or equal to 46J, the weight loss in a sliding wear test is more than 0.09 g, and the weight loss in an impact wear test is more than 0.05 g.
Therefore, the alloy steel plate prepared by the invention has the advantages of high hardness, smooth surface, no crack, no air hole, high tensile strength, high impact toughness and low abrasion degree, is suitable for crushers of massive ores such as large iron ores and copper ores, grab buckets of ore wharf ship unloaders, impact hoppers, protective discs of cutter discs of shield machines and the like, has the service life of 20-30 times that of common steel plates, greatly reduces the production cost and the maintenance cost, and has excellent economic benefit.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. Tungsten carbide granule composite wear-resisting steel sheet material, its characterized in that: the plate consists of a substrate and an alloy composite layer;
the alloy composite layer consists of tungsten carbide particles, atomized iron powder, high-carbon ferrochrome powder, ferrovanadium, ferronickel, ferrocolumbium, ferromanganese, ferromolybdenum and yttrium-based rare earth;
the substrate is a steel plate;
the diameter of the tungsten carbide particles is controlled to be 1.5-3.5 mm.
2. The tungsten carbide particle composite wear-resistant steel plate as claimed in claim 1, wherein:
the weight ratio of the tungsten carbide particles, the atomized iron powder, the high-carbon ferrochrome powder, the ferrovanadium, the ferronickel, the ferroniobium, the ferromanganese, the ferromolybdenum and the yttrium-based rare earth is 5.5: 2: 1.5: 0.2: 0.3: 0.15: 0.1: 0.15: 0.1.
3. the tungsten carbide particle composite wear-resistant steel plate as claimed in claim 1, wherein the alloy composite layer comprises the following raw materials per hundred kilograms:
55 kg of tungsten carbide particles;
20 kg of atomized iron powder;
15 kg of high-carbon ferrochrome powder;
2 kg of ferrovanadium;
3 kilograms of ferronickel;
1.5 kilograms of ferroniobium;
1 kg of ferromanganese;
1.5 kilograms of ferromolybdenum;
1 kg of yttrium-based rare earth.
4. The process for manufacturing the tungsten carbide particle composite wear-resistant steel plate according to any one of claims 1 to 2, comprising the following steps:
the method comprises the following steps: laying an alloy composite layer on the substrate, and then covering a welding flux;
step two: carrying out submerged arc welding process treatment and cladding by using an arc welding gun;
step three: cooling the plate;
step four: and (4) releasing the protective flux.
5. The manufacturing process of the tungsten carbide particle composite wear-resistant steel plate according to claim 4, wherein the second step is specific:
copper arc welding guns are flatly and regularly arranged by adopting 8, and are respectively provided with current voltage, the current is controlled between 430 and 550A, the voltage is controlled between 38 and 45V, and the gun distance is controlled to be 185 cm.
6. The manufacturing process of the tungsten carbide particle composite wear-resistant steel plate according to claim 1, characterized in that: the base plate is one of the steel plate in the middle and 235 steel plates or in the middle and 345 steel plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210120103.6A CN114480906A (en) | 2022-02-09 | 2022-02-09 | Tungsten carbide particle composite wear-resistant steel plate and manufacturing process thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210120103.6A CN114480906A (en) | 2022-02-09 | 2022-02-09 | Tungsten carbide particle composite wear-resistant steel plate and manufacturing process thereof |
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| CN202210120103.6A Pending CN114480906A (en) | 2022-02-09 | 2022-02-09 | Tungsten carbide particle composite wear-resistant steel plate and manufacturing process thereof |
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Citations (8)
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| US5755299A (en) * | 1995-08-03 | 1998-05-26 | Dresser Industries, Inc. | Hardfacing with coated diamond particles |
| CN1221661A (en) * | 1998-12-21 | 1999-07-07 | 赵志显 | Welding rod prescription material capable of welding lower than or equal to 1000 deg.C abrasion resistance steel and its mfg. method |
| CN101078084A (en) * | 2007-06-27 | 2007-11-28 | 西安建筑科技大学 | Tungsten carbide particle enhanced steel/iron-base composite wearable plate and preparation technique thereof |
| CN105154788A (en) * | 2015-09-09 | 2015-12-16 | 南京工程学院 | Heat-resistant alloy steel component having trans-scale multiphase in-situ enhancement effect and microstructure control process thereof |
| US20150360311A1 (en) * | 2014-06-12 | 2015-12-17 | Kennametal Inc. | Composite wear pad and methods of making the same |
| US20180178283A1 (en) * | 2016-01-19 | 2018-06-28 | Wenhui Jiang | Hardfacing Containing Tungsten Carbide Particles with Barrier Coating and Methods of Making the Same |
| CN108359978A (en) * | 2018-04-13 | 2018-08-03 | 贵州大学 | A kind of Fe-based shape memory alloy laser melting coating composite coating powder and its preparation and application |
| CN111702294A (en) * | 2020-07-17 | 2020-09-25 | 江苏硕展精密机械有限公司 | High-chromium alloy composite wear-resistant steel plate and production process thereof |
-
2022
- 2022-02-09 CN CN202210120103.6A patent/CN114480906A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5755299A (en) * | 1995-08-03 | 1998-05-26 | Dresser Industries, Inc. | Hardfacing with coated diamond particles |
| CN1221661A (en) * | 1998-12-21 | 1999-07-07 | 赵志显 | Welding rod prescription material capable of welding lower than or equal to 1000 deg.C abrasion resistance steel and its mfg. method |
| CN101078084A (en) * | 2007-06-27 | 2007-11-28 | 西安建筑科技大学 | Tungsten carbide particle enhanced steel/iron-base composite wearable plate and preparation technique thereof |
| US20150360311A1 (en) * | 2014-06-12 | 2015-12-17 | Kennametal Inc. | Composite wear pad and methods of making the same |
| CN105154788A (en) * | 2015-09-09 | 2015-12-16 | 南京工程学院 | Heat-resistant alloy steel component having trans-scale multiphase in-situ enhancement effect and microstructure control process thereof |
| US20180178283A1 (en) * | 2016-01-19 | 2018-06-28 | Wenhui Jiang | Hardfacing Containing Tungsten Carbide Particles with Barrier Coating and Methods of Making the Same |
| CN108359978A (en) * | 2018-04-13 | 2018-08-03 | 贵州大学 | A kind of Fe-based shape memory alloy laser melting coating composite coating powder and its preparation and application |
| CN111702294A (en) * | 2020-07-17 | 2020-09-25 | 江苏硕展精密机械有限公司 | High-chromium alloy composite wear-resistant steel plate and production process thereof |
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Application publication date: 20220513 |