CN113894258A - Surface coating of foot roller of continuous casting crystallizer and preparation method thereof - Google Patents
Surface coating of foot roller of continuous casting crystallizer and preparation method thereof Download PDFInfo
- Publication number
- CN113894258A CN113894258A CN202111116827.5A CN202111116827A CN113894258A CN 113894258 A CN113894258 A CN 113894258A CN 202111116827 A CN202111116827 A CN 202111116827A CN 113894258 A CN113894258 A CN 113894258A
- Authority
- CN
- China
- Prior art keywords
- coating
- roller
- spraying
- foot roller
- continuous casting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/03—Alloys based on nickel or cobalt based on nickel
-
- 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
-
- 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
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Coating By Spraying Or Casting (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
Abstract
The invention discloses a surface coating of a foot roller of a continuous casting crystallizer, which consists of a bottom layer and a surface layer; the bottom layer is nickel-based alloy powder with the thickness of 0.1-0.2 mm; the surface layer is nickel-based tungsten carbide alloy powder with the thickness of 1-3 mm. The base layer comprises the following chemical components in percentage by mass: 0.01-0.03% of C, 0.3-1% of Fe, 2-3% of Si, 1-3% of B and the balance of Ni; the surface layer comprises the following chemical components in percentage by mass: 0.1-0.4% of C, 0.3-1% of Fe, 2-3% of Si, 1-3% of B, 10-30% of W, 5-10% of Cr, 0.5-1% of rare earth elements and the balance of Ni. The invention also discloses a preparation method of the surface coating of the foot roller of the continuous casting crystallizer, which comprises the following specific steps: (1) turning (2), flaw detection (3), thread turning (4), cleaning, activation (5), spraying (6), remelting (7) and fine machining. The foot roller of the continuous casting crystallizer is strengthened by spraying and remelting methods, so that metallurgical bonding is formed between a surface coating and a matrix, the stable performance of the coating can be ensured, the performances of wear resistance, cold and hot fatigue and the like of the coating can be improved, and the service life of the foot roller of the continuous casting crystallizer is prolonged.
Description
Technical Field
The invention relates to the field of material surface modification and metallurgical industry, in particular to a powder material for a continuous casting crystallizer foot roll coating and a coating preparation method.
Background
Continuous casting is one of the advanced technologies in the field of modern metallurgical industry, a crystallizer is called as a heart of a continuous casting production line, a foot roller of the continuous casting crystallizer is an important transmission component at the lower end of the crystallizer, and the quality of the foot roller of the continuous casting crystallizer directly influences the quality of a billet and the production efficiency of a continuous casting machine. Because the steel billet is in a red hot state when passing through the foot roller of the crystallizer, the inside of the billet shell contains a liquid core, so that the foot roller of the crystallizer not only bears friction with the steel billet but also bears high temperature in the transmission process, and simultaneously, the foot roller of the crystallizer is continuously subjected to cold and hot circulation along with the spraying of secondary cold water. Therefore, the failure modes of the foot roller are mainly surface cracks and falling caused by abrasion and fatigue.
In order to solve the problems, the conventional method at present adopts a surfacing method to prepare an iron-based alloy coating on the surface of a foot roller: common alloy welding wires are stainless steel materials such as 430 and 414N. However, the heat input in the surfacing process is large, so that large deformation is easily generated, the dilution rate is large, and large heat input also causes large grains and reduced mechanical properties. However, the thermal spray coating is typically layered and physically bonded to the substrate, and thus is difficult to adapt to a severe environment. Therefore, how to improve the surface performance of the foot roller of the continuous casting crystallizer is very important for reducing cost and improving efficiency of steel enterprises.
Disclosure of Invention
The invention aims to provide a surface coating of a foot roller of a continuous casting crystallizer and a preparation method thereof. The foot roller of the continuous casting crystallizer is strengthened by spraying and remelting methods, so that metallurgical bonding is formed between a surface coating and a matrix, the stable performance of the coating can be ensured, the performances of wear resistance, cold and hot fatigue and the like of the coating can be improved, and the service life of the foot roller of the continuous casting crystallizer is prolonged.
The invention relates to a surface coating of a foot roller of a continuous casting crystallizer, which consists of a bottom layer and a surface layer; the bottom layer is nickel-based alloy powder with the thickness of 0.1-0.2 mm; the surface layer is nickel-based tungsten carbide alloy powder with the thickness of 1-3 mm.
Further, the chemical components and mass percentages of the bottom layer are as follows: 0.01-0.03% of C, 0.3-1% of Fe, 2-3% of Si, 1-3% of B and the balance of Ni; the surface layer comprises the following chemical components in percentage by mass: 0.1-0.4% of C, 0.3-1% of Fe, 2-3% of Si, 1-3% of B, 10-30% of W, 5-10% of Cr, 0.5-1% of rare earth elements and the balance of Ni.
The invention relates to a preparation method of a surface coating of a foot roller of a continuous casting crystallizer, which comprises the following specific steps:
(1) turning: turning the foot roller blank of the crystallizer, wherein the outer diameter of the turning is 1-2mm smaller than the final size of the roller; turning the inner hole to be 2-5mm smaller than the final inner hole of the roller; turning the length to be 3-5mm larger than the final size of the roller;
(2) flaw detection: flaw detection is carried out on the turned foot roller of the crystallizer, so that the turned foot roller has no defects such as cracks, air holes and the like;
(3) threading: processing by adopting a threading tool to form right-angled threads on the surface of the roller;
(4) cleaning and activating: cleaning oil stains, and activating the thread surface by adopting a sand blasting method;
(5) spraying: preparing a coating on the right-angle thread surface by adopting a flame spraying method, wherein the bottom layer is 0.1-0.2mm, and the surface layer is 1-3 mm;
(6) remelting: feeding the mixture into a furnace for integral remelting;
(7) finish machining: and (4) processing the foot roller of the crystallizer to meet the size requirement.
Further, turning in the step (1): the blank processing is to reserve corresponding allowance according to the product specification and the size of a finished product, the outer diameter is processed according to the size of the finished product without the coating thickness, and the inner hole is processed according to the minimum inner diameter of the finished product with the processing allowance of 2-5 mm.
Further, step (3) threading: the thread pitch of the thread is 2-4mm, and the thread depth is 0.3-0.5 mm.
Further, step (4) cleaning and activating: and completely activating the roll surface by adopting diamond iron sand.
Furthermore, the granularity of the surface layer powder and the bottom layer powder is 53-150 um.
Further, spraying in the step (5): bottom layer process parameters: the linear velocity of the workpiece is 30-35m/min, the spraying distance is 150-200mm, the spraying step distance is 6-10mm/r, the acetylene is 20-30NLPM, the oxygen is 20-40NLPM, and the powder feeding rate is 80-100 g/min; surface layer process parameters: the linear velocity of the workpiece is 10-15m/min, the spraying distance is 150-200mm, the spraying step distance is 6-10mm/r, the acetylene is 20-30NLPM, the oxygen is 20-40NLPM, and the powder feeding rate is 80-100 g/min.
Further, remelting in step (6): the whole body is remelted by a vacuum furnace, and the vacuum degree in the remelting process is less than 10-2Pa, 900 ℃ and 1100 ℃, and the heat preservation time is 30-60 min.
Compared with the prior art, the invention has the advantages that: the surface coating is divided into a priming layer and a surface layer, the autolysis property and the wettability of the nickel-based alloy and the wear resistance and the thermal fatigue resistance of the nickel-based WC coating are fully utilized, and the wear resistance and the thermal fatigue resistance of the nickel-based WC coating are consideredThe bonding strength and the wear resistance and thermal fatigue performance required by the coating; secondly, the nickel-based WC composite coating has high wear resistance and thermal fatigue resistance, the powder contains 2-3% of Si and 1-3% of B, on one hand, the melting point of the powder is reduced, the feasibility of a remelting process is ensured, and on the other hand, the formation of fine eutectic compounds Cr in the remelting process is ensured7C3、Ni3B and the like are dispersed in the solid solution, so that the structure and the performance of the coating are effectively improved; thirdly, rare earth elements in the nickel-based WC alloy powder play roles in refining crystal grains and purifying crystal boundaries in the remelting process, so that the oxidation resistance and the ductility of the alloy are enhanced, and the powder has excellent wear resistance and toughness; and fourthly, the integral vacuum heating remelting is adopted, so that the metallurgical bonding between the coating and the matrix is ensured, meanwhile, the oxidation phenomenon between the coatings in the remelting process is avoided, and the intergranular oxidation between the coatings is avoided. In a word, the continuous casting crystallizer foot roll obtained by the preparation method effectively considers the bonding strength of the coating and the matrix and the wear resistance and thermal fatigue performance of the coating, the hardness of the coating is HRC45 or so, and the service life of the coating is prolonged by more than 5 times compared with that of a surfacing welding foot roll.
Detailed Description
Example 1
The invention relates to a surface coating of a foot roller of a continuous casting crystallizer, which consists of a bottom layer and a surface layer; the bottom layer is nickel-based alloy powder with the thickness of 0.1-0.2 mm; the surface layer is nickel-based tungsten carbide alloy powder with the thickness of 1-3 mm.
The base layer comprises the following chemical components in percentage by mass: 0.01-0.03% of C, 0.3-1% of Fe, 2-3% of Si, 1-3% of B and the balance of Ni; the surface layer comprises the following chemical components in percentage by mass: 0.1-0.4% of C, 0.3-1% of Fe, 2-3% of Si, 1-3% of B, 10-30% of W, 5-10% of Cr, 0.5-1% of rare earth elements and the balance of Ni.
Example 2
The invention relates to a preparation method of a continuous casting crystallizer foot roller surface coating, which comprises the following specific steps:
(1) turning: turning the foot roller blank of the crystallizer, wherein the outer diameter of the turning is 1-2mm smaller than the final size of the roller; turning the inner hole to be 2-5mm smaller than the final inner hole of the roller; turning the length to be 3-5mm larger than the final size of the roller;
(2) flaw detection: flaw detection is carried out on the turned foot roller of the crystallizer, so that the turned foot roller has no defects such as cracks, air holes and the like;
(3) threading: processing by adopting a threading tool to form right-angled threads on the surface of the roller;
(4) cleaning and activating: cleaning oil stains, and activating the thread surface by adopting a sand blasting method;
(5) spraying: preparing a coating on the right-angle thread surface by adopting a flame spraying method, wherein the bottom layer is 0.1-0.2mm, and the surface layer is 1-3 mm;
(6) remelting: feeding the mixture into a furnace for integral remelting;
(7) finish machining: and (4) processing the foot roller of the crystallizer to meet the size requirement.
Wherein: turning: the blank processing is to reserve corresponding allowance according to the product specification and the size of a finished product, the outer diameter is processed according to the size of the finished product without the coating thickness, and the inner hole is processed according to the minimum inner diameter of the finished product with the processing allowance of 2-5 mm.
Wherein, step (3) threading: the thread pitch of the thread is 2-4mm, and the thread depth is 0.3-0.5 mm. The purpose of the thread turning is to increase the bonding strength between the coating and the substrate in the spraying and remelting processes.
Wherein, the step (4) of cleaning and activating: and completely activating the roll surface by adopting diamond iron sand.
Wherein, the step (5) is spraying: the granularity of the surface layer powder and the bottom layer powder is 53-150 um.
Wherein, the step (5) is spraying: bottom layer process parameters: the linear velocity of the workpiece is 30-35m/min, the spraying distance is 150-200mm, the spraying step distance is 6-10mm/r, the acetylene is 20-30NLPM, the oxygen is 20-40NLPM, and the powder feeding rate is 80-100 g/min; surface layer process parameters: the linear velocity of the workpiece is 10-15m/min, the spraying distance is 150-200mm, the spraying step distance is 6-10mm/r, the acetylene is 20-30NLPM, the oxygen is 20-40NLPM, and the powder feeding rate is 80-100 g/min.
Wherein, the remelting in the step (6): the whole body is remelted by a vacuum furnace, and the vacuum degree in the remelting process is less than 10-2Pa, 900 ℃ and 1100 ℃, and the heat preservation time is 30-60 min. The remelting improves the bonding strength of the coating and the matrix and the internal quality of the coating, and improvesThe coating has service performance.
When the foot roll matrix of the continuous casting crystallizer adopts 42CrMo, the performances of a surfacing layer obtained by adopting the traditional surfacing process and a coating obtained by adopting the process are compared:
thermal shock test: test sample (specification)
) Placing into 500 deg.C muffle furnace, keeping the temperature for 15min, taking out, rapidly placing into room temperature clear water, and repeating the above steps. The number of macrocracks found for the first time is defined as the crack initiation number. The performance pair ratios are shown in table 1.
TABLE 1
| Kind of coating | Number of cracks | Surface state |
| Build-up welding coating | 50 | Micro-cracks are visible |
| Coatings of the invention | 100 | Without cracks |
(II) abrasion test: the method is carried out on a high-temperature end face friction wear testing machine, the testing temperature is 500 ℃, and the adopted friction pair is quenched grinding tool steel. And (5) comparing the weightlessness conditions under the same working condition and time. The performance pair ratios are shown in table 2.
TABLE 2
The experimental data show that the continuous casting crystallizer foot roll coating has good fatigue resistance and wear resistance.
The continuous casting crystallizer foot roll prepared by the preparation method effectively considers the bonding strength of the coating and the matrix and the wear resistance and thermal fatigue performance of the coating, and the hardness of the coating is about HRC 45. The steel is used on line in a continuous casting medium plate factory of a steel mill, the steel excess amount is more than 60 ten thousand tons, obvious abrasion and cracks do not occur, and the service life is prolonged by more than 5 times compared with the service life of surfacing.
Claims (9)
1. The surface coating of the foot roller of the continuous casting crystallizer is characterized in that: it consists of a bottom layer and a surface layer; the bottom layer is nickel-based alloy powder with the thickness of 0.1-0.2 mm; the surface layer is nickel-based tungsten carbide alloy powder with the thickness of 1-3 mm.
2. The surface coating of claim 1, wherein: the bottom layer comprises the following chemical components in percentage by mass: 0.01-0.03% of C, 0.3-1% of Fe, 2-3% of Si, 1-3% of B and the balance of Ni; the surface layer comprises the following chemical components in percentage by mass: 0.1-0.4% of C, 0.3-1% of Fe, 2-3% of Si, 1-3% of B, 10-30% of W, 5-10% of Cr, 0.5-1% of rare earth elements and the balance of Ni.
3. The preparation method of the surface coating of the foot roller of the continuous casting crystallizer comprises the following specific steps:
(1) turning: turning the foot roller blank of the crystallizer, wherein the outer diameter of the turning is 1-2mm smaller than the final size of the roller; turning the inner hole to be 2-5mm smaller than the final inner hole of the roller; turning the length to be 3-5mm larger than the final size of the roller;
(2) flaw detection: flaw detection is carried out on the turned foot roller of the crystallizer, so that the turned foot roller has no defects such as cracks, air holes and the like;
(3) threading: processing by adopting a threading tool to form right-angled threads on the surface of the roller;
(4) cleaning and activating: cleaning oil stains, and activating the thread surface by adopting a sand blasting method;
(5) spraying: preparing a coating on the right-angle thread surface by adopting a flame spraying method, wherein the bottom layer is 0.1-0.2mm, and the surface layer is 1-3 mm;
(6) remelting: feeding the mixture into a furnace for integral remelting;
(7) finish machining: and (4) processing the foot roller of the crystallizer to meet the size requirement.
4. The method for preparing a coating according to claim 3, wherein: turning: the blank processing is to reserve corresponding allowance according to the product specification and the size of a finished product, the outer diameter is processed according to the size of the finished product without the coating thickness, and the inner hole is processed according to the minimum inner diameter of the finished product with the processing allowance of 2-5 mm.
5. The method for preparing a coating according to claim 3, wherein: step (3), threading: the thread pitch of the thread is 2-4mm, and the thread depth is 0.3-0.5 mm.
6. The method of claim 3, wherein: and (4) cleaning and activating: and completely activating the roll surface by adopting diamond iron sand.
7. The method of claim 3, wherein: the granularity of the surface layer powder and the bottom layer powder is 53-150 um.
8. The method of claim 3, wherein: step (5), spraying: bottom layer process parameters: the linear velocity of the workpiece is 30-35m/min, the spraying distance is 150-200mm, the spraying step distance is 6-10mm/r, the acetylene is 20-30NLPM, the oxygen is 20-40NLPM, and the powder feeding rate is 80-100 g/min; surface layer process parameters: the linear velocity of the workpiece is 10-15m/min, the spraying distance is 150-200mm, the spraying step distance is 6-10mm/r, the acetylene is 20-30NLPM, the oxygen is 20-40NLPM, and the powder feeding rate is 80-100 g/min.
9. The method of claim 3, wherein: step (6)Remelting: the whole body is remelted by a vacuum furnace, and the vacuum degree in the remelting process is less than 10-2Pa, 900 ℃ and 1100 ℃, and the heat preservation time is 30-60 min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111116827.5A CN113894258B (en) | 2021-09-23 | 2021-09-23 | Surface coating of foot roller of continuous casting crystallizer and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111116827.5A CN113894258B (en) | 2021-09-23 | 2021-09-23 | Surface coating of foot roller of continuous casting crystallizer and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113894258A true CN113894258A (en) | 2022-01-07 |
| CN113894258B CN113894258B (en) | 2023-05-12 |
Family
ID=79029064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111116827.5A Active CN113894258B (en) | 2021-09-23 | 2021-09-23 | Surface coating of foot roller of continuous casting crystallizer and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113894258B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114921743A (en) * | 2022-05-23 | 2022-08-19 | 广东粤科新材料科技有限公司 | Method for prolonging service life of pressure chamber and injection head of die-casting machine by using composite coating |
| CN116117435A (en) * | 2022-09-30 | 2023-05-16 | 江苏先锋精密科技股份有限公司 | Processing method of power interface panel |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5387471A (en) * | 1992-08-27 | 1995-02-07 | European Gas Turbines Sa | Wear-resistant coating for a nickel alloy part |
| US5499672A (en) * | 1994-06-01 | 1996-03-19 | Chuetsu Metal Works Co., Ltd. | Mold for continuous casting which comprises a flame sprayed coating layer of a tungsten carbide-based wear-resistant material |
| JP2003320441A (en) * | 2002-05-09 | 2003-11-11 | Nippon Steel Corp | Coating method for continuous casting mold |
| CN101020998A (en) * | 2007-03-21 | 2007-08-22 | 山东大学 | Process of flame spray coating heat resistant antiwear alloy onto red copper surface |
| CN101532133A (en) * | 2009-04-21 | 2009-09-16 | 广州有色金属研究院 | Copper-base crystallizer surface laser cladding method |
| CN201338080Y (en) * | 2008-10-27 | 2009-11-04 | 上海宝钢设备检修有限公司 | Continuous casting mold copper plate or copper tube |
| CN101798669A (en) * | 2009-02-06 | 2010-08-11 | 上海宝钢设备检修有限公司 | Method for thermally spraying protective coating on surface of copper plate of continuous casting crystallizer |
| CN102851632A (en) * | 2012-10-11 | 2013-01-02 | 江苏科技大学 | Method for preparing high-temperature wear-resistant coating on continuous casting crystallizer copper alloy plate surface |
| CN103834896A (en) * | 2012-11-21 | 2014-06-04 | 上海宝钢工业技术服务有限公司 | Continuous casting crystallizer long-side copper plate coating thermal spraying method |
| CN106077618A (en) * | 2016-08-22 | 2016-11-09 | 兰州工业学院 | The nichrome dusty material containing rare earth and application thereof for abrasive wear resistance |
| CN106381488A (en) * | 2015-07-31 | 2017-02-08 | 上海宝钢工业技术服务有限公司 | Preparation method of foot roller coating layer for continuous casting crystallizer |
| CN109576628A (en) * | 2017-09-25 | 2019-04-05 | 上海宝钢工业技术服务有限公司 | The preparation method of continuous cast mold long side copper sheet composite coating |
| CN112680634A (en) * | 2020-12-11 | 2021-04-20 | 泰尔(安徽)工业科技服务有限公司 | Nickel-based alloy powder material for repairing foot roller of crystallizer and repairing method |
| CN113308662A (en) * | 2021-05-26 | 2021-08-27 | 泰尔(安徽)工业科技服务有限公司 | Spraying repair method for short-edge copper plate side surface of continuous casting crystallizer |
-
2021
- 2021-09-23 CN CN202111116827.5A patent/CN113894258B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5387471A (en) * | 1992-08-27 | 1995-02-07 | European Gas Turbines Sa | Wear-resistant coating for a nickel alloy part |
| US5499672A (en) * | 1994-06-01 | 1996-03-19 | Chuetsu Metal Works Co., Ltd. | Mold for continuous casting which comprises a flame sprayed coating layer of a tungsten carbide-based wear-resistant material |
| JP2003320441A (en) * | 2002-05-09 | 2003-11-11 | Nippon Steel Corp | Coating method for continuous casting mold |
| CN101020998A (en) * | 2007-03-21 | 2007-08-22 | 山东大学 | Process of flame spray coating heat resistant antiwear alloy onto red copper surface |
| CN201338080Y (en) * | 2008-10-27 | 2009-11-04 | 上海宝钢设备检修有限公司 | Continuous casting mold copper plate or copper tube |
| CN101798669A (en) * | 2009-02-06 | 2010-08-11 | 上海宝钢设备检修有限公司 | Method for thermally spraying protective coating on surface of copper plate of continuous casting crystallizer |
| CN101532133A (en) * | 2009-04-21 | 2009-09-16 | 广州有色金属研究院 | Copper-base crystallizer surface laser cladding method |
| CN102851632A (en) * | 2012-10-11 | 2013-01-02 | 江苏科技大学 | Method for preparing high-temperature wear-resistant coating on continuous casting crystallizer copper alloy plate surface |
| CN103834896A (en) * | 2012-11-21 | 2014-06-04 | 上海宝钢工业技术服务有限公司 | Continuous casting crystallizer long-side copper plate coating thermal spraying method |
| CN106381488A (en) * | 2015-07-31 | 2017-02-08 | 上海宝钢工业技术服务有限公司 | Preparation method of foot roller coating layer for continuous casting crystallizer |
| CN106077618A (en) * | 2016-08-22 | 2016-11-09 | 兰州工业学院 | The nichrome dusty material containing rare earth and application thereof for abrasive wear resistance |
| CN109576628A (en) * | 2017-09-25 | 2019-04-05 | 上海宝钢工业技术服务有限公司 | The preparation method of continuous cast mold long side copper sheet composite coating |
| CN112680634A (en) * | 2020-12-11 | 2021-04-20 | 泰尔(安徽)工业科技服务有限公司 | Nickel-based alloy powder material for repairing foot roller of crystallizer and repairing method |
| CN113308662A (en) * | 2021-05-26 | 2021-08-27 | 泰尔(安徽)工业科技服务有限公司 | Spraying repair method for short-edge copper plate side surface of continuous casting crystallizer |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114921743A (en) * | 2022-05-23 | 2022-08-19 | 广东粤科新材料科技有限公司 | Method for prolonging service life of pressure chamber and injection head of die-casting machine by using composite coating |
| CN116117435A (en) * | 2022-09-30 | 2023-05-16 | 江苏先锋精密科技股份有限公司 | Processing method of power interface panel |
| CN116117435B (en) * | 2022-09-30 | 2023-11-21 | 江苏先锋精密科技股份有限公司 | Processing method of power interface panel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113894258B (en) | 2023-05-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113894258B (en) | Surface coating of foot roller of continuous casting crystallizer and preparation method thereof | |
| CN103451551B (en) | Preparation method of cast steel perforator top tip with high-temperature resistance and corrosion resistance | |
| CN113319272B (en) | Metal ceramic powder material for wear-resistant layer of section steel conveying roller and manufacturing method of wear-resistant layer | |
| CN113913813A (en) | Method for repairing performance of nano-reinforced Inconel718 laser coating of chromium-molybdenum alloy | |
| CN104988452A (en) | Manufacturing method of wear-resisting lining plate for rolling mill inlet guide | |
| CN111961974B (en) | Preparation method of drill rod tail shaft of tapping machine | |
| CN115466951B (en) | Heat-resistant wear-resistant perforating plug and preparation method thereof | |
| CN100507067C (en) | High temperature, wear-resistant and anti-noclulation for roller coating and spray coating to inside of furnace | |
| CN114250414A (en) | Seamless steel pipe for pipeline and preparation method thereof | |
| CN109868469B (en) | Powder material for laser manufacturing mill housing and roller bearing seat composite lining plate and manufacturing method thereof | |
| CN114055092A (en) | Method for manufacturing air-hole ultrahigh-pressure pipe fitting by high-nickel alloy structural steel | |
| CN113789469A (en) | Metal powder for repairing continuous casting crystallizer foot roller through laser cladding and preparation method thereof | |
| CN104785895A (en) | Submerged arc surfacing manufacturing technology of looper roll for rolling mill | |
| CN112795916A (en) | Laser cladding alloy powder and laser cladding method for roller step pad | |
| CN115125457B (en) | Steel for-50 ℃ low-temperature-resistant petrochemical heat exchanger tube plate produced by continuous casting large round billets and manufacturing method thereof | |
| CN115323272A (en) | Ferritic steel alloy powder for laser additive repair of shaft parts and application method thereof | |
| CN113913722A (en) | Surface composite coating of mandrel for rolling seamless steel tube and preparation method thereof | |
| CN112496216B (en) | Forging production process of 30Cr15MoN high-nitrogen martensitic stainless steel bar | |
| CN115961206A (en) | Laser cladding rolling mill sliding plate and machining method thereof | |
| CN112301345A (en) | Laser cladding alloy powder for cast steel roller and laser cladding method thereof | |
| CN112941410A (en) | Method for controlling alpha phase content in austenitic stainless steel | |
| CN112795914A (en) | Method for preparing in-situ synthesized TiC/NiCrBSi composite coating on surface of die steel | |
| CN113186422B (en) | Laser cladding inner hole copper-based alloy powder | |
| CN112342469B (en) | High-strength and high-toughness steel for petroleum hoisting ring and preparation method thereof | |
| CN113430359B (en) | High-strength and high-toughness rolling method for large-size gun steel bar |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |