CN113136517A - Double-layer wear-resistant roller way material and preparation method and application thereof - Google Patents
Double-layer wear-resistant roller way material and preparation method and application thereof Download PDFInfo
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- CN113136517A CN113136517A CN202110399441.3A CN202110399441A CN113136517A CN 113136517 A CN113136517 A CN 113136517A CN 202110399441 A CN202110399441 A CN 202110399441A CN 113136517 A CN113136517 A CN 113136517A
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/02—Shape or construction of rolls
-
- 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
-
- 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
- C22C29/005—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides comprising a particular metallic binder
Abstract
A double-layer wear-resistant roller bed material comprises an inner layer and an outer layer, wherein the inner layer is a base layer, the outer layer is a wear-resistant layer, the wear-resistant layer is loaded on the base layer in a brazing mode, and the wear-resistant layer comprises 82-85 parts of WC, 12-14 parts of TiC, 5-8 parts of TaC, 3-5 parts of TiN and 3-5 parts of Ta in parts by weight3N52-5 parts of nano Co particles, 2-5 parts of nano Ni particles, 1-3 parts of nano Fe particles and 10-12 parts of self-fluxing brazing alloy powder NiCrBSi. The invention also discloses a preparation method of the double-layer wear-resistant roller way material and application of the double-layer wear-resistant roller way material in a steel rolling bar wire cooling bed input roller way. The double-layer wear-resistant roller way material disclosed by the invention has strong bonding property between the inner layer and the outer layer, the outer layer is not easy to fall off, and the double-layer wear-resistant roller way material can be applied to impacted scenes.
Description
Technical Field
The invention belongs to the technical field of wear-resistant materials, and particularly relates to a double-layer wear-resistant roller bed material and a preparation method and application thereof.
Background
The steel rolling bar line cooling bed input roller way is important transmission transition equipment between a rolled line deformed steel product and a cooling bed surface, and the input roller way is divided into three sections for speed control to pull apart two sections of adjacent multiple lengths in the roller way and convert the two sections of adjacent multiple lengths to the cooling bed surface through a movable wall. The fact that two sections of double-length pieces cannot be pulled open due to abrasion of the roller surface in the production process is the main reason for the cold bed to play dragon, and therefore, the reduction of the abrasion of the roller surface of the input roller is an important technical measure for ensuring the stable production.
Chinese patent No. CN201510357146.6 (patent name "a brazing process for brazing clad material for metal surface") discloses a method for covering a metal surface with a brazing clad material, comprising the steps of: the method comprises the steps of cleaning the metal surface, attaching the brazing clad material and performing high-temperature heat treatment, wherein the brazing clad material can be effectively clad on the metal surface, the physical and chemical properties of the outer surface are improved through the clad material, but the brazing clad material is only attached to the metal surface before sintering, the bonding force is poor, and the brazing clad material is easy to fall off when being subjected to impact force, so that a double-layer material with strong bonding force needs to be developed.
Disclosure of Invention
The invention provides a double-layer wear-resistant roller way material and a preparation method and application thereof, aiming at solving the problem that a brazing layer is easy to fall off in the prior art.
The invention adopts the following technical scheme:
a double-layer wear-resistant roller bed material comprises an inner layer and an outer layer, wherein the inner layer is a base layer, the outer layer is a wear-resistant layer, the wear-resistant layer is loaded on the base layer in a brazing mode, and the wear-resistant layer comprises 82-85 parts of WC, 12-14 parts of TiC, 5-8 parts of TaC, 3-5 parts of TiN and 3-5 parts of Ta in parts by weight3N52-5 parts of nano Co particles, 2-5 parts of nano Ni particles, 1-3 parts of nano Fe particles and 10-12 parts of self-fluxing brazing alloy powder NiCrBSi.
Further, the base layer is austenitic heat-resistant steel, ferritic heat-resistant steel, or pearlitic heat-resistant steel.
Further, the particle size of the self-fluxing brazing alloy powder NiCrBSi is 100-120 μm.
A preparation method of a double-layer wear-resistant roller way material comprises the following steps:
A. mixing WC, TiC, TaC, TiN and Ta according to the mass part ratio3N5Nano CoBall-milling the particles, the nano Ni particles, the nano Fe particles and the self-fluxing brazing alloy powder NiCrBSi for 8-10h, and adding cyclohexane of which the total mass is 1-2 times that of the raw materials as a solvent during ball-milling;
B. drying at 50-60 deg.C, grinding, and sieving with 60-90 mesh sieve;
C. b, performing sand blasting treatment on the upper surface of the substrate layer, putting the substrate layer into a Cr12MoV steel mold after the treatment is finished, coating 30-50 parts of NiCrBSi, covering the powder obtained in the step B on the upper surface of the substrate layer, and performing pressure sizing;
D. and transferring the shaped blank into a high-temperature furnace, heating to 1120-1250 ℃, preserving heat for 6-10h, then reducing the temperature to 700-900 ℃ at the speed of 2-3 ℃/min, reducing the temperature to 400-600 ℃ at the speed of 5-6 ℃/min, and then cooling to room temperature along with the furnace to obtain the double-layer wear-resistant roller way material.
An application of a double-layer wear-resistant roller way material in a steel rolling bar line cooling bed input roller way.
Compared with the prior art, the invention has the beneficial effects that:
(1) the double-layer wear-resistant roller way material disclosed by the invention has strong bonding property between the inner layer and the outer layer, the outer layer is not easy to fall off, and the double-layer wear-resistant roller way material can be applied to impacted scenes;
(2) the NiCrBSi is additionally arranged between the inner layer and the outer layer to serve as a buffer layer, so that the inner layer and the outer layer can be better combined, in addition, sand blasting is carried out on the surface of the inner layer, the contact area of the NiCrBSi and the inner layer is increased, the binding property is improved, and falling off is prevented to the greatest extent.
Detailed Description
The present invention is further described with reference to the following examples, which are provided for illustration only and are not to be construed as limiting the scope of the claims, and other alternatives which may occur to those skilled in the art are also within the scope of the claims.
Example 1
A double-layer wear-resistant roller way material comprises an inner layer and an outer layer, wherein the inner layer is a substrate layer, the outer layer is a wear-resistant layer, the wear-resistant layer is loaded on the substrate layer in a brazing mode, and the wear-resistant layer comprises 82 parts of WC and 12 parts of Ti in parts by weightC. 5 parts of TaC, 3 parts of TiN and 3 parts of Ta3N52 parts of nano Co particles, 2 parts of nano Ni particles, 1 part of nano Fe particles and 10 parts of self-fluxing brazing alloy powder NiCrBSi.
Further, the matrix layer is austenitic heat-resistant steel.
Further, the particle size of the self-fluxing brazing alloy powder NiCrBSi is 100-120 μm.
The preparation method of the double-layer wear-resistant roller way material comprises the following steps:
A. mixing WC, TiC, TaC, TiN and Ta according to the mass part ratio3N5Ball-milling the nano Co particles, the nano Ni particles, the nano Fe particles and the self-fluxing brazing alloy powder NiCrBSi for 8 hours, and adding cyclohexane of which the total mass is 1 time of that of the raw materials as a solvent during ball-milling;
B. drying at 50 deg.C, grinding and sieving with 60 mesh sieve;
C. b, performing sand blasting treatment on the upper surface of the substrate layer, putting the substrate layer into a Cr12MoV steel mold after the treatment is finished, coating 30 parts of NiCrBSi, covering the powder obtained in the step B on the upper surface of the substrate layer, and performing pressure sizing;
D. and transferring the shaped blank into a high-temperature furnace, heating to 1120 ℃, preserving heat for 6h, reducing the temperature to 700 ℃ at the speed of 2 ℃/min, reducing the temperature to 400 ℃ at the speed of 5 ℃/min, and cooling to room temperature along with the furnace to obtain the double-layer wear-resistant roller way material.
The double-layer wear-resistant roller way material is applied to a steel rolling bar wire cooling bed input roller way, so that the wear resistance is improved, and the service life of an input roller is prolonged.
Metallographic analysis is carried out on the double-layer wear-resistant roller way material prepared by the preparation method, the outer layer and the inner layer are tightly combined, multipoint tests are carried out on the surface to calculate the average value, and the hardness is HRC59.7, and the bonding strength is 215 MPa.
Example 2
The double-layer wear-resistant roller bed material comprises an inner layer and an outer layer, wherein the inner layer is a substrate layer, the outer layer is a wear-resistant layer, the wear-resistant layer is loaded on the substrate layer in a brazing mode, and the wear-resistant layer comprises, by mass, 85 parts of WC, 14 parts of TiC, 8 parts of TaC, 5 parts of TiN and 5 parts of Ta3N5The brazing filler metal consists of 5 parts of nano Co particles, 5 parts of nano Ni particles, 3 parts of nano Fe particles and 12 parts of self-fluxing brazing alloy powder NiCrBSi.
Further, the base layer is a ferritic heat-resistant steel.
Further, the particle size of the self-fluxing brazing alloy powder NiCrBSi is 100-120 μm.
The preparation method of the double-layer wear-resistant roller way material comprises the following steps:
A. mixing WC, TiC, TaC, TiN and Ta according to the mass part ratio3N5Ball-milling the nanometer Co particles, the nanometer Ni particles, the nanometer Fe particles and the self-fluxing brazing alloy powder NiCrBSi for 10 hours, and adding cyclohexane of which the total mass is 2 times of that of the raw materials as a solvent during ball-milling;
B. drying at 60 deg.C, grinding and sieving with 90 mesh sieve;
C. b, performing sand blasting treatment on the upper surface of the substrate layer, putting the substrate layer into a Cr12MoV steel mold after the treatment is finished, coating 50 parts of NiCrBSi, covering the powder obtained in the step B on the upper surface of the substrate layer, and performing pressure sizing;
D. and transferring the shaped blank into a high-temperature furnace, heating to 1250 ℃, preserving heat for 10 hours, reducing the temperature to 900 ℃ at the speed of 3 ℃/min, reducing the temperature to 600 ℃ at the speed of 6 ℃/min, and cooling to room temperature along with the furnace to obtain the double-layer wear-resistant roller way material.
The double-layer wear-resistant roller way material is applied to a steel rolling bar wire cooling bed input roller way, so that the wear resistance is improved, and the service life of an input roller is prolonged.
Metallographic analysis is carried out on the double-layer wear-resistant roller way material prepared by the preparation method, the outer layer and the inner layer are tightly combined, multipoint tests are carried out on the surface to calculate the average value, and the hardness is HRC61.8, and the bonding strength is 210 MPa.
Example 3
The double-layer wear-resistant roller bed material comprises an inner layer and an outer layer, wherein the inner layer is a substrate layer, the outer layer is a wear-resistant layer, the wear-resistant layer is loaded on the substrate layer in a brazing mode, and the wear-resistant layer comprises 84 parts of WC, 13 parts of TiC, 6 parts of TaC, 4 parts of TiN and 4 parts of Ta in parts by weight3N53 parts of nano Co particles4 parts of nano Ni particles, 2 parts of nano Fe particles and 11 parts of self-fluxing brazing alloy powder NiCrBSi.
Further, the base layer is a pearlitic heat resistant steel.
Further, the particle size of the self-fluxing brazing alloy powder NiCrBSi is 100-120 μm.
The preparation method of the double-layer wear-resistant roller way material comprises the following steps:
A. mixing WC, TiC, TaC, TiN and Ta according to the mass part ratio3N5Ball-milling the nanometer Co particles, the nanometer Ni particles, the nanometer Fe particles and the self-fluxing brazing alloy powder NiCrBSi for 9 hours, and adding cyclohexane of which the total mass is 1.5 times of that of the raw materials as a solvent during ball-milling;
B. drying at 55 deg.C, grinding and sieving with 80 mesh sieve;
C. b, performing sand blasting treatment on the upper surface of the substrate layer, putting the substrate layer into a Cr12MoV steel mold after the treatment is finished, coating 40 parts of NiCrBSi, covering the powder obtained in the step B on the upper surface of the substrate layer, and performing pressure sizing;
D. and transferring the shaped blank into a high-temperature furnace, heating to 1200 ℃, preserving heat for 8h, reducing the temperature to 800 ℃ at the speed of 2.5 ℃/min, reducing the temperature to 500 ℃ at the speed of 5.5 ℃/min, and cooling to room temperature along with the furnace to obtain the double-layer wear-resistant roller way material.
The double-layer wear-resistant roller way material is applied to a steel rolling bar wire cooling bed input roller way, so that the wear resistance is improved, and the service life of an input roller is prolonged.
Metallographic analysis is carried out on the double-layer wear-resistant roller way material prepared by the preparation method, the outer layer and the inner layer are tightly combined, multipoint tests are carried out on the surface to calculate the average value, and the hardness is HRC60.1, and the bonding strength is 225 MPa.
The above examples are merely illustrative for clarity and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (5)
1. A double-layer wear-resistant roller bed material is characterized in that: the wear-resistant layer is loaded on the base layer in a brazing mode and comprises 82-85 parts of WC, 12-14 parts of TiC, 5-8 parts of TaC, 3-5 parts of TiN and 3-5 parts of Ta in parts by weight3N52-5 parts of nano Co particles, 2-5 parts of nano Ni particles, 1-3 parts of nano Fe particles and 10-12 parts of self-fluxing brazing alloy powder NiCrBSi.
2. The double-layer wear-resistant roller way material according to claim 1, wherein: the substrate layer is made of austenitic heat-resistant steel, ferritic heat-resistant steel or pearlitic heat-resistant steel.
3. The double-layer wear-resistant roller way material according to claim 1, wherein: the particle size of the self-fluxing brazing alloy powder NiCrBSi is 100-120 mu m.
4. The preparation method of the double-layer wear-resistant roller way material of claim 1 is characterized by comprising the following steps: the method comprises the following steps:
A. mixing WC, TiC, TaC, TiN and Ta according to the mass part ratio3N5Ball-milling the nano Co particles, the nano Ni particles, the nano Fe particles and the self-fluxing brazing alloy powder NiCrBSi for 8-10h, and adding cyclohexane of which the total mass is 1-2 times of that of the raw materials as a solvent during ball-milling;
B. drying at 50-60 deg.C, grinding, and sieving with 60-90 mesh sieve;
C. b, performing sand blasting treatment on the upper surface of the substrate layer, putting the substrate layer into a Cr12MoV steel mold after the treatment is finished, coating 30-50 parts of NiCrBSi, covering the powder obtained in the step B on the upper surface of the substrate layer, and performing pressure sizing;
D. and transferring the shaped blank into a high-temperature furnace, heating to 1120-1250 ℃, preserving heat for 6-10h, then reducing the temperature to 700-900 ℃ at the speed of 2-3 ℃/min, reducing the temperature to 400-600 ℃ at the speed of 5-6 ℃/min, and then cooling to room temperature along with the furnace to obtain the double-layer wear-resistant roller way material.
5. The use of the double layer wear resistant roller way material of claim 1 in a cold bed run-in table for rolled steel bar wire.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100215983A1 (en) * | 2009-02-20 | 2010-08-26 | Kennametal Inc. | Brazed Claddings for Cast Iron Substrates |
| CN101869985A (en) * | 2010-05-18 | 2010-10-27 | 齐齐哈尔大学 | Method for preparing metal ceramic coating material with plasma/combustion synthesis/quasistatic pressing process |
| US20110171484A1 (en) * | 2008-09-15 | 2011-07-14 | Igor Yuri Konyashin | Wear Part With Hard Facing |
| CN109692957A (en) * | 2019-01-26 | 2019-04-30 | 淮北市菲美得环保科技有限公司 | A kind of preparation process of wearability stainless steel alloy coating |
-
2021
- 2021-04-14 CN CN202110399441.3A patent/CN113136517A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110171484A1 (en) * | 2008-09-15 | 2011-07-14 | Igor Yuri Konyashin | Wear Part With Hard Facing |
| US20100215983A1 (en) * | 2009-02-20 | 2010-08-26 | Kennametal Inc. | Brazed Claddings for Cast Iron Substrates |
| CN101869985A (en) * | 2010-05-18 | 2010-10-27 | 齐齐哈尔大学 | Method for preparing metal ceramic coating material with plasma/combustion synthesis/quasistatic pressing process |
| CN109692957A (en) * | 2019-01-26 | 2019-04-30 | 淮北市菲美得环保科技有限公司 | A kind of preparation process of wearability stainless steel alloy coating |
Non-Patent Citations (1)
| Title |
|---|
| 丁彰雄等: "《船舶机械修理工艺学》", 28 February 2013, 武汉理工大学出版社 * |
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Application publication date: 20210720 |