CN113564587A - High-temperature oxidation-resistant and press-in nodule-resistant functional layer alloy material for laser composite manufacturing furnace roller and process method - Google Patents
High-temperature oxidation-resistant and press-in nodule-resistant functional layer alloy material for laser composite manufacturing furnace roller and process method Download PDFInfo
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- CN113564587A CN113564587A CN202110948823.7A CN202110948823A CN113564587A CN 113564587 A CN113564587 A CN 113564587A CN 202110948823 A CN202110948823 A CN 202110948823A CN 113564587 A CN113564587 A CN 113564587A
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- 239000002346 layers by function Substances 0.000 title claims abstract description 36
- 230000003647 oxidation Effects 0.000 title claims abstract description 26
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 26
- 239000000956 alloy Substances 0.000 title claims abstract description 24
- 239000002131 composite material Substances 0.000 title claims abstract description 16
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000008569 process Effects 0.000 title claims abstract description 8
- 230000024121 nodulation Effects 0.000 claims abstract description 14
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 12
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 12
- 229910052715 tantalum Inorganic materials 0.000 claims abstract description 9
- 239000010410 layer Substances 0.000 claims description 22
- 238000005253 cladding Methods 0.000 claims description 18
- 239000000843 powder Substances 0.000 claims description 17
- 230000007704 transition Effects 0.000 claims description 13
- 238000004372 laser cladding Methods 0.000 claims description 9
- 239000000835 fiber Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 7
- 238000012545 processing Methods 0.000 claims description 7
- 229910001080 W alloy Inorganic materials 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 229910052748 manganese Inorganic materials 0.000 claims description 3
- 229910052750 molybdenum Inorganic materials 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 239000002356 single layer Substances 0.000 claims description 3
- 229910052721 tungsten Inorganic materials 0.000 claims description 3
- 239000011159 matrix material Substances 0.000 abstract description 2
- 238000004381 surface treatment Methods 0.000 abstract description 2
- 229910000531 Co alloy Inorganic materials 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 abstract 1
- 238000003825 pressing Methods 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 description 6
- 238000000576 coating method Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000010301 surface-oxidation reaction Methods 0.000 description 1
Classifications
-
- 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
- C23C24/00—Coating starting from inorganic powder
- C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
- C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
- C23C24/103—Coating with metallic material, i.e. metals or metal alloys, optionally comprising hard particles, e.g. oxides, carbides or nitrides
- C23C24/106—Coating with metal alloys or metal elements only
-
- 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
- C22C19/07—Alloys based on nickel or cobalt based on cobalt
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention belongs to the technical field of surface treatment, and particularly relates to a high-temperature oxidation resistant and press-in nodule resistant functional layer alloy material for a laser composite manufacturing furnace roller and a process method. The high-temperature oxidation resistant and anti-pressing-in nodulation functional layer alloy material for the laser composite manufacturing furnace roller comprises the following components in percentage by mass: c: 1.5-2.5%, Cr: 20.0% -30.0%, Ta: 5.0% -10.0%, Al: 5.0% -10.0%, Y: 0.5% -1.0%, Si: 0.5% -1.0%, Co: and (4) the balance. The invention provides a high-temperature oxidation resistant and anti-pressing nodule functional layer alloy material for a laser composite manufacturing furnace roller, which takes a cobalt-based alloy as a matrix, adds Ta element, increases C element, forms carbide with higher hardness, increases the high-temperature red hardness of the alloy, simultaneously adds Al element, forms a high-temperature oxidation film, adds a proper amount of Si element to improve the oxidation resistance, adds Y element to refine the structure, and improves the high-temperature corrosion resistance of the surface of the furnace roller by Cr element.
Description
Technical Field
The invention belongs to the technical field of surface treatment, relates to a laser cladding alloy functional layer material, and particularly relates to a high-temperature oxidation resistant and press-in nodule resistant functional layer alloy material for a laser composite manufacturing furnace roller and a process method.
Background
The furnace roller is a key part when rolling the steel coil, and because the furnace roller is in contact with the steel coil for a long time at high temperature, the roller surface has a large number of defects such as cracks, oxidation, nodulation, pits and the like, thereby directly influencing the surface quality of the head and the tail of the steel coil rolling plate. Therefore, the furnace roller has good high-temperature red hardness, oxidation resistance and bonding resistance, and has important significance for improving the quality of the product, reducing the rejection rate and developing the steel plate coil rolling technology.
At present, the furnace roller which is off-line and needs to be repaired is mainly repaired in a surfacing mode and also repaired in a spraying mode. However, the roller surface repaired by the surfacing mode has obvious stress cracks, even closed cracks and peeling phenomena, and has poor high-temperature oxidation resistance and high-temperature red hardness, a large amount of oxides and pits appear on the roller surface, and the roller surface reacts with a plate coil at high temperature to form nodules, so that the quality of the plate surface of the plate coil is influenced. The roller surface is repaired by a spraying mode, although some materials with high-temperature oxidation resistance and high-temperature red hardness can be sprayed, the interface bonding force is weak, the coating is thin, the coating is easy to crack and peel under the action of high temperature and plate coil contact, and the rolled plate is scraped to cause roller surface nodulation, rolled plate pits and pockmarks when the coating is peeled off and used.
The laser cladding technology is an efficient and convenient surface modification technology and has the following advantages: (1) the dilution rate of the cladding layer is low; (2) the heat influence on the base material is small; (3) the thickness of the cladding layer is controllable; (4) the interface bonding force is strong; (5) fine and compact structure and excellent performance. The laser cladding process is adopted to clad the functional layer, so that the interface binding force is high, the coating is prevented from peeling off, a compact tissue structure can be obtained, the performance of the functional layer is improved, and the coating is pure. More importantly, the functional layer for resisting high-temperature oxidation and preventing the press-in of the laser composite manufacturing furnace roller can meet the oxidation resistance and red hardness of the furnace roller when the furnace roller is used at a high temperature for a long time, prevent the generation of roller surface pits, reduce the roller surface nodulation probability and further improve the head and tail quality of the rolled plate.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides a functional laminated alloy material for resisting high-temperature oxidation and preventing press-in nodulation for a laser composite manufacturing furnace roller through repeated research and a large number of experiments.
In order to achieve the purpose, the invention adopts the following technical scheme.
The high-temperature oxidation resistant and anti-pressing-in nodulation functional layer alloy material for the laser composite manufacturing furnace roller comprises the following components in percentage by mass: c: 1.5-2.5%, Cr: 20.0% -30.0%, Ta: 5.0% -10.0%, Al: 5.0% -10.0%, Y: 0.5% -1.0%, Si: 0.5% -1.0%, Co: and (4) the balance.
A preparation method of a high-temperature oxidation resistant and anti-pressing-in nodulation functional layer of a laser composite manufacturing furnace roller comprises the following steps:
step 1, presetting a layer of transition layer material with the thickness of 1.2-1.5mm on the surface of a furnace roller in a Co-Cr-W alloy powder presetting mode, selecting a fiber laser to carry out scanning cladding, and then processing to reserve the thickness of the transition layer to be 1.0-1.2 mm.
And 2, selecting a fiber laser, and performing laser cladding on functional layer alloy powder on the transition layer in a powder presetting mode, wherein the cladding process comprises the following steps: power: 2000-: 3.0mm, a focal length of 280-350mm, a scanning speed of 1000-1200mm/min, a single-layer thickness of 0.6-0.8mm, and a lap joint rate of 40-60%.
Further, the components of the Co-Cr-W alloy powder in the step 1 are as follows: c: 1.0% -2.0%, Cr: 25.0% -30.0%, W: 1.0% -5.0%, Mo: 0.5% -1.5%, Al: 0.1% -1.0%, Mn: 0.1% -1.0%, Si: 1.0% -1.5%, Fe: 1.0% -5.0%, Ni: 1.0% -5.0%, Co: and (4) the balance.
Further, the functional layer alloy powder in the step 2 comprises the following components: c: 1.5-2.5%, Cr: 20.0% -30.0%, Ta: 5.0% -10.0%, Al: 5.0% -10.0%, Y: 0.5% -1.0%, Si: 0.5% -1.0%, Co: and (4) the balance.
Compared with the prior art, the invention has the beneficial effects of.
(1) Ta element is added, C element is added, carbide with higher hardness is formed, the high-temperature red hardness of the functional layer alloy can be greatly improved, and oxides and impurities are prevented from being pressed into the surface of the roller.
(2) The Al element is added to form a high-temperature-resistant oxidation film, so that the high-temperature-resistant oxidation performance of the functional layer alloy can be greatly improved, the functional layer crystal grains can be refined by the Y element with a certain content, the adhesion is prevented, and the strength is improved.
(3) The addition of Si element can play a role in deoxidation and slagging during deposition, purify the functional layer and improve the oxidation resistance of the functional layer.
(4) By adopting a laser cladding mode, good metallurgical bonding with a matrix can be formed, the structure is refined, the interface bonding force is improved, and the coating is prevented from peeling off.
Detailed Description
The following describes in detail specific embodiments of the present invention. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
The high-temperature oxidation resistant and anti-pressing-in nodulation functional layer alloy material for the laser composite manufacturing furnace roller comprises the following components in percentage by mass: c: 1.5-2.5%, Cr: 20.0% -30.0%, Ta: 5.0% -10.0%, Al: 5.0% -10.0%, Y: 0.5% -1.0%, Si: 0.5% -1.0%, Co: and (4) the balance.
A preparation method of a high-temperature oxidation resistant and anti-pressing-in nodulation functional layer of a laser composite manufacturing furnace roller comprises the following steps:
step 1, presetting a layer of transition layer material with the thickness of 1.2-1.5mm on the surface of a furnace roller in a Co-Cr-W alloy powder presetting mode, selecting a fiber laser to carry out scanning cladding, and then processing to reserve the thickness of the transition layer to be 1.0-1.2 mm.
And 2, selecting a fiber laser, and performing laser cladding on functional layer alloy powder on the transition layer in a powder presetting mode, wherein the cladding process comprises the following steps: power: 2000-: 3.0mm, a focal length of 280-350mm, a scanning speed of 1000-1200mm/min, a single-layer thickness of 0.6-0.8mm, and a lap joint rate of 40-60%.
Further, the components of the Co-Cr-W alloy powder in the step 1 are as follows: c: 1.0% -2.0%, Cr: 25.0% -30.0%, W: 1.0% -5.0%, Mo: 0.5% -1.5%, Al: 0.1% -1.0%, Mn: 0.1% -1.0%, Si: 1.0% -1.5%, Fe: 1.0% -5.0%, Ni: 1.0% -5.0%, Co: and (4) the balance.
Further, the functional layer alloy powder in the step 2 comprises the following components: c: 1.5-2.5%, Cr: 20.0% -30.0%, Ta: 5.0% -10.0%, Al: 5.0% -10.0%, Y: 0.5% -1.0%, Si: 0.5% -1.0%, Co: and (4) the balance.
Example 1.
1. Removing factors influencing cladding quality such as oil stain, oxides, fatigue layers, surface cracks and the like on the surface of the furnace roller, cladding a layer of transition layer alloy material at a specified position by using a fiber laser, and keeping the thickness of 1.0mm after processing.
2. Scanning and cladding a functional layer on the transition layer by using a laser cladding technology and a powder presetting mode, wherein the functional layer comprises the following alloy components in percentage by mass: c: 2.0%, Cr: 24.0%, Ta: 10.0%, Al: 7.5%, Y: 0.8%, Si: 0.8%, Co: and (4) the balance. Cladding thickness is 0.7 mm.
3. And processing the functional layer after cladding, and keeping the thickness of 0.5 mm.
Example 2.
1. Removing factors influencing cladding quality such as oil stain, oxides, fatigue layers, surface cracks and the like on the surface of the furnace roller, cladding a layer of transition layer alloy material at a specified position by using a fiber laser, and keeping the thickness of 1.0mm after processing.
2. Scanning and cladding a functional layer on the transition layer by using a laser cladding technology and a powder presetting mode, wherein the functional layer comprises the following alloy components in percentage by mass: c: 1.9%, Cr: 25.0%, Ta: 9.0%, Al: 8.0%, Y: 1.0%, Si: 1.0%, Co: and (4) the balance. Cladding thickness is 0.8 mm.
3. And processing the functional layer after cladding, and keeping the thickness of 0.6 mm.
The metallurgical bonding of the surface of the furnace roller coated with the functional layer is good, the surface has no crack defect, and the hardness is higher than that of the original base material. After the roll is used on line, after the roll is used at high temperature for a long time, the surface oxidation resistance is good, the roll surface has no pits, and the nodulation condition is greatly reduced compared with the original roll surface, so that the quality of the head and the tail of the roll is obviously improved, the using effect is more than 3 times that of surfacing repair of the roll surface, and the rejection rate is greatly reduced.
Claims (4)
1. The high-temperature oxidation resistant and anti-pressing-in nodulation functional layer alloy material for the laser composite manufacturing furnace roller is characterized by comprising the following components in percentage by mass: c: 1.5-2.5%, Cr: 20.0% -30.0%, Ta: 5.0% -10.0%, Al: 5.0% -10.0%, Y: 0.5% -1.0%, Si: 0.5% -1.0%, Co: and (4) the balance.
2. The preparation method of the high-temperature oxidation resistant and anti-pressing-in nodulation functional layer of the laser composite manufacturing furnace roller is characterized by comprising the following steps of:
step 1, presetting a layer of transition layer material with the thickness of 1.2-1.5mm on the surface of a furnace roller in a Co-Cr-W alloy powder presetting mode, selecting a fiber laser for scanning cladding, and then processing to reserve the thickness of the transition layer to be 1.0-1.2 mm;
and 2, selecting a fiber laser, and performing laser cladding on functional layer alloy powder on the transition layer in a powder presetting mode, wherein the cladding process comprises the following steps: power: 2000-: 3.0mm, a focal length of 280-350mm, a scanning speed of 1000-1200mm/min, a single-layer thickness of 0.6-0.8mm, and a lap joint rate of 40-60%.
3. The method for preparing the high-temperature oxidation resistant and anti-pressing-in nodulation functional layer of the laser composite manufacturing furnace roller according to claim 2, wherein the Co-Cr-W alloy powder in the step 1 comprises the following components: c: 1.0% -2.0%, Cr: 25.0% -30.0%, W: 1.0% -5.0%, Mo: 0.5% -1.5%, Al: 0.1% -1.0%, Mn: 0.1% -1.0%, Si: 1.0% -1.5%, Fe: 1.0% -5.0%, Ni: 1.0% -5.0%, Co: and (4) the balance.
4. The method for preparing the high-temperature oxidation resistant and anti-pressing-in nodulation functional layer of the laser composite manufacturing furnace roller according to claim 2, wherein the functional layer alloy powder in the step 2 comprises the following components: c: 1.5-2.5%, Cr: 20.0% -30.0%, Ta: 5.0% -10.0%, Al: 5.0% -10.0%, Y: 0.5% -1.0%, Si: 0.5% -1.0%, Co: and (4) the balance.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110948823.7A CN113564587A (en) | 2021-08-18 | 2021-08-18 | High-temperature oxidation-resistant and press-in nodule-resistant functional layer alloy material for laser composite manufacturing furnace roller and process method |
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| CN202110948823.7A CN113564587A (en) | 2021-08-18 | 2021-08-18 | High-temperature oxidation-resistant and press-in nodule-resistant functional layer alloy material for laser composite manufacturing furnace roller and process method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115261678A (en) * | 2022-08-05 | 2022-11-01 | 沈阳大陆激光先进制造技术创新有限公司 | Laser cladding material for high-temperature heating furnace and process method |
| CN115537806A (en) * | 2022-10-19 | 2022-12-30 | 北京赛亿科技有限公司 | Manufacturing process of anti-caking furnace bottom roller |
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2021
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| CN115537806A (en) * | 2022-10-19 | 2022-12-30 | 北京赛亿科技有限公司 | Manufacturing process of anti-caking furnace bottom roller |
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