CN113061885A - Laser cladding repair method for circular cooler bend - Google Patents
Laser cladding repair method for circular cooler bend Download PDFInfo
- Publication number
- CN113061885A CN113061885A CN202110314274.8A CN202110314274A CN113061885A CN 113061885 A CN113061885 A CN 113061885A CN 202110314274 A CN202110314274 A CN 202110314274A CN 113061885 A CN113061885 A CN 113061885A
- Authority
- CN
- China
- Prior art keywords
- bend
- laser cladding
- laser
- repair method
- circular cooler
- 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.)
- Pending
Links
- 238000004372 laser cladding Methods 0.000 title claims abstract description 88
- 238000000034 method Methods 0.000 title claims abstract description 28
- 230000008439 repair process Effects 0.000 title claims abstract description 27
- 239000000843 powder Substances 0.000 claims abstract description 38
- 239000000956 alloy Substances 0.000 claims abstract description 23
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 23
- 238000004321 preservation Methods 0.000 claims abstract description 23
- 238000007781 pre-processing Methods 0.000 claims abstract description 3
- 238000005253 cladding Methods 0.000 claims description 24
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 10
- 238000001514 detection method Methods 0.000 claims description 10
- 238000002844 melting Methods 0.000 claims description 10
- 230000008018 melting Effects 0.000 claims description 10
- 239000007789 gas Substances 0.000 claims description 8
- 239000012535 impurity Substances 0.000 claims description 8
- 238000004140 cleaning Methods 0.000 claims description 7
- 238000005245 sintering Methods 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 6
- 229910052786 argon Inorganic materials 0.000 claims description 5
- 230000001681 protective effect Effects 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 8
- 229910000831 Steel Inorganic materials 0.000 abstract description 4
- 239000010959 steel Substances 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000007547 defect Effects 0.000 description 7
- 238000001816 cooling Methods 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
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
-
- 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
- B23P6/00—Restoring or reconditioning objects
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/10—Ferrous alloys, e.g. steel alloys containing cobalt
- C22C38/105—Ferrous alloys, e.g. steel alloys containing cobalt containing Co and Ni
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
Abstract
A laser cladding repair method for a circular cooler bend belongs to the technical field of circular cooler bend repair, and comprises the steps of preprocessing the bend; preparing high-temperature-resistant and wear-resistant alloy powder; scanning to obtain three-dimensional data information of the curved track, and determining a scanning path of laser cladding; carrying out laser cladding on the surface of the bend according to the determined scanning path; carrying out heat preservation treatment on the laser-clad bend; the invention has the beneficial effects that the laser cladding is carried out on the surface of the bend, so that the hardness of the bend is improved, the service life of the bend is prolonged, the times of disassembling and assembling the bend are reduced, the unloading stability of a skip is improved, and a large amount of time and economic cost are saved for a steel mill.
Description
Technical Field
The invention relates to the technical field of sintered ring cooling machine bend repair, in particular to a laser cladding repair method for a sintered ring cooling machine bend.
Background
The curved rail is a section of rail where wheels travel when the circular cooler trolley is tipped to unload ores, and the cross section of the curved rail is circular and is divided into an inner rail and an outer rail. In order to ensure that the trolley runs stably and reliably without the phenomena of interference, collision, clamping and the like, the curved rail has a complex three-dimensional space shape.
In the running process of the circular cooler, the bend bears great impact load and extrusion friction load, the bend is easy to wear under the repeated action of the skip, the worn bend changes the running track due to the shape change, accidents such as derailment and blocking of the trolley are often caused, and the production is seriously influenced. Therefore, the bend needs to be periodically detected and replaced.
If a set of bend is newly made, a set of complex tooling system is needed to ensure the shape correctness of the bend, which is time-consuming and extremely high in cost. Therefore, at present, the replacement of the bend is mostly carried out by a repair method.
The traditional bend repair is surfacing repair, and has the following defects:
1. the curved rail repaired by overlaying has higher heat deformation due to higher welding heat.
2. If the overlaying layer is too hard, the bonding strength with the curved rail is not high, so that the overlaying layer is easy to peel off, the overlaying layer is too soft and not wear-resistant, the use requirement cannot be met, and the service life of the overlaying repair is only 3 months at present.
3. After surfacing, the bend needs to be processed, but the bend is in a complex three-dimensional space shape, and the processing difficulty is very high due to the arc-shaped surface of the processing surface.
Disclosure of Invention
In order to solve the technical problems, the invention provides a laser cladding repair method for a circular cooler bend, which comprises the steps of carrying out 3D scanning on the bend, transmitting three-dimensional data information to laser cladding equipment, determining a scanning path of laser cladding, conveying alloy powder to the surface of the bend according to the scanning path to carry out laser cladding, carrying out heat preservation treatment, and then cleaning and polishing, thus obtaining the bend with high wear resistance, corrosion resistance and long service life.
In order to achieve the purpose, the technical scheme adopted by the invention for solving the technical problems is as follows: the laser cladding repair method for the circular cooler bend comprises the following steps:
1) preprocessing the bend: turning along the surface of the curved rail, cleaning the turned surface, and removing oxide skin, impurities and oil stains;
2) preparing high-temperature-resistant and wear-resistant alloy powder;
3) scanning to obtain three-dimensional data information of the bend, and determining a scanning path of laser cladding: 3D scanning the bend to be repaired by using a three-dimensional scanner to obtain three-dimensional data information of the bend, inputting the obtained three-dimensional data information into laser cladding equipment, and determining a laser cladding reinforced scanning path by the laser cladding equipment;
4) carrying out laser cladding on the surface of the bend according to the determined scanning path: the laser cladding equipment synchronously conveys alloy powder through laser scanning according to the determined scanning path, and the alloy powder is used for carrying out laser cladding on the surface to be strengthened of the curved rail in a segmented axial direction;
5) carrying out heat preservation treatment on the laser-clad bend;
6) carrying out post-treatment on the laser-clad bend: and carrying out nondestructive flaw detection and related dimension detection on the laser cladding layer, and cleaning and polishing the surface of the bend to make the surface smooth.
The unilateral turning amount of the turning in the step 1) is 3 mm.
The alloy powder comprises the following components in percentage by mass: co: 9-11%, Ni: 15-17%, Ti: 1.5-3.5%, Fe: 70.5-52.5%, and the particle size of the powder is 53-150 um.
The specific process parameters in the step 3) are as follows: the power of the laser cladding equipment is 2200-2600W, the length of the rectangular light spot is 3-20 mm, the width of the rectangular light spot is 0.2-1 mm, the overlapping rate is 50-80%, the scanning speed is 10-12 mm/s, the protective gas is argon, the powder feeding speed is 13.2-22.6 g/min, the powder feeding gas flow is 3-5L/min, and the thickness of the laser cladding layer is 1.8-2.3 mm.
After the bend is processed in the step 4), the hardness of a laser cladding layer of the bend is HRC 45-50.
The specific process parameters of the step 4) are as follows: the temperature for heat preservation of the laser-clad bend is set to be 350-400 ℃, and the time is 120-180 min.
After the bend is processed in the step 5), the hardness of a cladding layer on the surface of the bend is HRC 50-55, a melting zone is formed between the cladding layer and the surface of the bend, and the thickness of the melting zone is 2-3 mm.
The invention has the beneficial effects that:
1. according to the invention, the three-dimensional data information is transmitted to the laser cladding equipment after the 3D scanning is carried out on the curved rail, so that the scanning path of the laser cladding is determined, alloy powder is conveyed to the surface to be reinforced of the curved rail according to the scanning path to carry out the laser cladding, the seriously worn area is repaired on line, the automation of the reinforcing process is realized, the quality of the laser cladding is ensured, and the curved rail after the laser cladding is cleaned and polished after heat preservation treatment, so that the hardness of the curved rail is improved, the service life of the curved rail is prolonged, the times of disassembling and assembling the curved rail are reduced, the stability of unloading of a skip is greatly improved, and a large amount of time and economic cost are saved for a steel mill.
2. After the bend is subjected to laser cladding treatment, the bend is subjected to heat preservation treatment, so that the residual stress of a cladding layer can be effectively relieved, the hardness and structural stability of the cladding layer can be further improved, and the service life of the bend is further prolonged.
In conclusion, the laser cladding is carried out on the surface of the bend, so that the hardness of the bend is improved, the service life of the bend is prolonged, the times of disassembling and assembling the bend are reduced, the unloading stability of a skip is improved, and a large amount of time and economic cost are saved for a steel mill.
Drawings
The contents of the expressions in the various figures of the present specification and the labels in the figures are briefly described as follows:
FIG. 1 is a schematic flow diagram of the present invention;
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The following embodiments all provide a laser cladding repair method for a sintering circular cooler bend, wherein the bend needing laser cladding treatment comprises the following chemical components:
| composition of matter | C | Si | Mn | Cr | Mo | S.P |
| Ratio (%) | 0.38-0.43 | 0.15-0.35 | 0.75-1 | 0.8-1.1 | 0.15-0.25 | Less than 0.04 |
The hardness of the bend is HRC 55-60.
Example one
The embodiment provides a laser cladding repair method for a circular cooler bend, which comprises the following steps:
1) turning along the surface of the curved rail, wherein the single-side turning amount is 3mm, and cleaning the turning surface to remove oxide skin, impurities and oil stains.
2) Preparing high-temperature-resistant and wear-resistant alloy powder, wherein the high-temperature-resistant and wear-resistant alloy powder comprises the following components in percentage by mass: co: 9%, Ni: 15%, Ti: 3.5%, Fe: 72.5 percent, and the granularity of the powder is 53-150 um.
3) The method comprises the steps of positioning the bend on a processing machine tool of laser cladding equipment, carrying out 3D scanning on the bend to be repaired by using a three-dimensional scanner to obtain three-dimensional data information of the bend, inputting the obtained three-dimensional data information into the laser cladding equipment, and determining a laser cladding reinforced scanning path by the laser cladding equipment.
4) The laser cladding equipment synchronously conveys alloy powder through laser scanning according to a determined scanning path, and the alloy powder is used for carrying out laser cladding on the surface to be strengthened of the curved rail in a segmented axial direction, and the specific technological parameters are as follows: the power of the laser cladding equipment is 2200W, the length of the rectangular light spot is 15mm, the width of the rectangular light spot is 1mm, the lap joint rate is 50%, the scanning speed is 10mm/s, the protective gas is argon, the powder feeding speed is 13.2g/min, the powder feeding flow is 3L/min, the thickness of the laser cladding layer is 1.8mm, and the hardness of the laser cladding layer is HRC 45.
5) Putting the laser-clad bend into a heat preservation furnace for heat preservation treatment, wherein the heat preservation temperature is set to be 350 ℃, and preserving heat for 120 min;
6) nondestructive flaw detection and related dimension detection are carried out on the laser cladding layer, the defects of obvious cracks, air holes, impurities, soft belts and the like on the surface of the cladding layer are ensured, and the surface of the curved rail is cleaned and polished to be flat and smooth.
After the laser cladding treatment and the heat preservation treatment, the thickness of the cladding layer on the surface of the bend is 1.8mm, the hardness of the cladding layer is HRC50, the hardness of the cladding layer is improved compared with the hardness before heat preservation, and the hardness of the cladding layer is obviously improved compared with that of the bend, and the joint of the cladding layer and the surface of the bend is observed by adopting a microhardness tester, so that the combination degree of the cladding layer and the surface of the bend is good, a melting zone with the thickness of about 2mm is generated on the surface of the bend, the melting zone and the surface of the bend have a good combination surface and have no defects of inclusion, cracks and the like, and the service life of the bend is prolonged integrally.
Example two:
the embodiment provides a laser cladding repair method for a circular cooler bend, which comprises the following steps:
1) turning along the surface of the curved rail, wherein the single-side turning amount is 3mm, and cleaning the turning surface to remove oxide skin, impurities and oil stains.
2) Preparing high-temperature-resistant and wear-resistant alloy powder, wherein the high-temperature-resistant and wear-resistant alloy powder comprises the following components in percentage by mass: co: 10%, Ni: 16%, Ti: 2.5%, Fe: 71.5 percent, and the granularity of the powder is 53-150 um.
3) The method comprises the steps of positioning the bend on a processing machine tool of laser cladding equipment, carrying out 3D scanning on the bend to be repaired by using a three-dimensional scanner to obtain three-dimensional data information of the bend, inputting the obtained three-dimensional data information into the laser cladding equipment, and determining a laser cladding reinforced scanning path by the laser cladding equipment.
4) The laser cladding equipment synchronously conveys alloy powder through laser scanning according to a determined scanning path, and the alloy powder is used for carrying out laser cladding on the surface to be strengthened of the curved rail in a segmented axial direction, and the specific technological parameters are as follows: the power of the laser cladding equipment is 2400W, the length of the rectangular light spot is 15mm, the width of the rectangular light spot is 1mm, the lap joint rate is 60%, the scanning speed is 11mm/s, the protective gas is argon, the powder feeding speed is 16g/m, the powder feeding flow rate is 4L/min, the thickness of the laser cladding layer is 2mm, and the hardness of the laser cladding layer is HRC 48.
5) Putting the laser-clad bend into a heat preservation furnace for heat preservation treatment, wherein the heat preservation temperature is set to be 370 ℃, and preserving heat for 160 min;
6) nondestructive flaw detection and related dimension detection are carried out on the laser cladding layer, the defects of obvious cracks, air holes, impurities, soft belts and the like on the surface of the cladding layer are ensured, and the surface of the curved rail is cleaned and polished to be flat and smooth.
After the laser cladding treatment and the heat preservation treatment, the thickness of the cladding layer on the surface of the bend is 2mm, the hardness of the cladding layer is HRC52, the hardness of the cladding layer is improved compared with the hardness before heat preservation and is obviously improved compared with the hardness of the bend, and a microhardness tester is adopted to observe the joint of the cladding layer and the surface of the bend, so that the combination degree of the cladding layer and the surface of the bend is good, a melting zone with the thickness of about 2.5mm is generated on the surface of the bend, the melting zone and the surface of the bend have a good combination surface and have no defects of inclusion, cracks and the like, and the service life of the bend is prolonged integrally.
Example three:
the embodiment provides a laser cladding repair method for a circular cooler bend, which comprises the following steps:
1) turning along the surface of the curved rail, wherein the single-side turning amount is 3mm, and cleaning the turning surface to remove oxide skin, impurities and oil stains.
2) Preparing high-temperature-resistant and wear-resistant alloy powder, wherein the high-temperature-resistant and wear-resistant alloy powder comprises the following components in percentage by mass: co: 11%, Ni: 17%, Ti: 1.5%, Fe: 70.5 percent, and the granularity of the powder is 53-150 um.
3) The method comprises the steps of positioning the bend on a processing machine tool of laser cladding equipment, carrying out 3D scanning on the bend to be repaired by using a three-dimensional scanner to obtain three-dimensional data information of the bend, inputting the obtained three-dimensional data information into the laser cladding equipment, and determining a laser cladding reinforced scanning path by the laser cladding equipment.
4) The laser cladding equipment synchronously conveys alloy powder through laser scanning according to a determined scanning path, and the alloy powder is used for carrying out laser cladding on the surface to be strengthened of the curved rail in a segmented axial direction, and the specific technological parameters are as follows: the power of the laser cladding equipment is 2600W, the length of the rectangular light spot is 15mm, the width of the rectangular light spot is 1mm, the lap joint rate is 80%, the scanning speed is 12mm/s, the protective gas is argon, the powder feeding speed is 22.6g/m, the powder feeding gas flow is 5L/min, the thickness of the laser cladding layer is 2.3mm, and the hardness of the laser cladding layer is HRC 50.
5) Putting the laser-clad bend into a heat preservation furnace for heat preservation treatment, wherein the heat preservation temperature is set to be 400 ℃, and preserving heat for 180 min;
6) nondestructive flaw detection and related dimension detection are carried out on the laser cladding layer, the defects of obvious cracks, air holes, impurities, soft belts and the like on the surface of the cladding layer are ensured, and the surface of the curved rail is cleaned and polished to be flat and smooth.
After the laser cladding treatment and the heat preservation treatment, the thickness of the cladding layer on the surface of the bend is 2.3mm, the hardness is HRC55, the hardness of the cladding layer is improved compared with the hardness before heat preservation and is obviously improved compared with the hardness of the bend, and a microscopic hardness tester is adopted to observe the joint of the cladding layer and the surface of the bend, so that the combination degree of the cladding layer and the surface of the bend is good, a melting zone with the thickness of about 3mm is generated on the surface of the bend, the melting zone and the surface of the bend have a good combination surface and have no defects of inclusion, cracks and the like, and the service life of the bend is prolonged integrally.
The method can repair the bend, and can save the following cost: each set of the bent rail has the weight of 7350kg, the original repair price is 35000 yuan, and the original repair service life is 3 months. The laser cladding repair cost is 55000 yuan, and the service life is 12 months. The total of 2 sets of the bent rails can save cost per year: 2 (35000 12/3-55000) ═ 170000 yuan.
In conclusion, the laser cladding is carried out on the surface of the bend, so that the hardness of the bend is improved, the service life of the bend is prolonged, the times of disassembling and assembling the bend are reduced, the unloading stability of a skip is improved, and a large amount of time and economic cost are saved for a steel mill.
While the foregoing is directed to the principles of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.
Claims (7)
1. A laser cladding repair method for a circular cooler bend is characterized by comprising the following steps:
1) preprocessing the bend: turning along the surface of the curved rail, cleaning the turned surface, and removing oxide skin, impurities and oil stains;
2) preparing high-temperature-resistant and wear-resistant alloy powder;
3) scanning to obtain three-dimensional data information of the bend, and determining a scanning path of laser cladding: 3D scanning the bend to be repaired by using a three-dimensional scanner to obtain three-dimensional data information of the bend, inputting the obtained three-dimensional data information into laser cladding equipment, and determining a laser cladding reinforced scanning path by the laser cladding equipment;
4) carrying out laser cladding on the surface of the bend according to the determined scanning path: the laser cladding equipment synchronously conveys alloy powder through laser scanning according to the determined scanning path, and the alloy powder is used for carrying out laser cladding on the surface to be strengthened of the curved rail in a segmented axial direction;
5) carrying out heat preservation treatment on the laser-clad bend;
6) carrying out post-treatment on the laser-clad bend: after nondestructive flaw detection and related dimension detection are carried out on the laser cladding layer, the surface of the bend is cleaned and polished to be flat and smooth.
2. The laser cladding repair method for the circular cooler bend of the sintering machine as claimed in claim 1, characterized in that: the unilateral turning amount of the turning in the step 1) is 3 mm.
3. The laser cladding repair method for the circular cooler bend of the sintering machine as claimed in claim 1, characterized in that: the alloy powder comprises the following components in percentage by mass: co: 9-11%, Ni: 15-17%, Ti: 1.5-3.5%, Fe: 70.5-52.5%, and the particle size of the powder is 53-150 um.
4. The laser cladding repair method for the circular cooler bend of the sintering machine as claimed in claim 1, characterized in that: the specific process parameters in the step 4) are as follows: the power of the laser cladding equipment is 2200-2600W, the length of the rectangular light spot is 3-20 mm, the width of the rectangular light spot is 0.2-1 mm, the overlapping rate is 50-80%, the scanning speed is 10-12 mm/s, the protective gas is argon, the powder feeding speed is 13.2-22.6 g/min, the powder feeding gas flow is 3-5L/min, and the thickness of the laser cladding layer is 1.8-2.3 mm.
5. The laser cladding repair method for the circular cooler bend of the sintering machine as claimed in claim 1, characterized in that: after the bend is processed in the step 4), the hardness of a laser cladding layer of the bend is HRC 45-50.
6. The laser cladding repair method for the circular cooler bend of the sintering machine as claimed in claim 1, characterized in that: the specific process parameters of the step 5) are as follows: the temperature for heat preservation of the laser-clad bend is set to be 350-400 ℃, and the time is 120-180 min.
7. The laser cladding repair method for the circular cooler bend of the sintering machine as claimed in claim 6, characterized in that: after the bend is processed in the step 5), the hardness of a cladding layer on the surface of the bend is HRC 50-55, a melting zone is formed between the cladding layer and the surface of the bend, and the thickness of the melting zone is 2-3 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110314274.8A CN113061885A (en) | 2021-03-24 | 2021-03-24 | Laser cladding repair method for circular cooler bend |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110314274.8A CN113061885A (en) | 2021-03-24 | 2021-03-24 | Laser cladding repair method for circular cooler bend |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113061885A true CN113061885A (en) | 2021-07-02 |
Family
ID=76561690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110314274.8A Pending CN113061885A (en) | 2021-03-24 | 2021-03-24 | Laser cladding repair method for circular cooler bend |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113061885A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104084747A (en) * | 2014-06-13 | 2014-10-08 | 唐山市丰南区天泽科技有限公司 | Repair method for cold drawing internal die |
| CN104862693A (en) * | 2015-04-24 | 2015-08-26 | 燕山大学 | Laser cladding repair method of tower wheel of wire drawing machine |
| CN109385631A (en) * | 2018-12-10 | 2019-02-26 | 山东泰利先进制造研究院有限公司 | A kind of laser melting coating complex repairation manufacturing method and its application |
| CN110102878A (en) * | 2019-06-03 | 2019-08-09 | 燕山大学 | The CMT and laser melting coating combined-repair method of roller mill main axle flat head sleeve inner hole |
| CN110257826A (en) * | 2019-07-19 | 2019-09-20 | 燕山大学 | Grain roll bearing position laser cladding method and laser melting coating alloy powder |
| CN110273155A (en) * | 2019-07-31 | 2019-09-24 | 天津玛斯特车身装备技术有限公司 | A kind of laser cladding reconstructing technique |
| CN110396689A (en) * | 2019-08-02 | 2019-11-01 | 燕山大学 | A kind of laser melting coating strengthens the preparation method of Centrifugal rolling |
| CN111471993A (en) * | 2020-05-29 | 2020-07-31 | 燕山大学 | Laser cladding repair material for four rollers of sintering four-roller crusher and remanufacturing method |
| CN111549342A (en) * | 2020-06-12 | 2020-08-18 | 兰州理工大学白银新材料研究院 | Laser cladding repair method for double-row chain wheel |
| CN111593343A (en) * | 2020-06-10 | 2020-08-28 | 中国航发北京航空材料研究院 | Process method for repairing flap slide rail chromium plating surface chipping defect by laser cladding |
-
2021
- 2021-03-24 CN CN202110314274.8A patent/CN113061885A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104084747A (en) * | 2014-06-13 | 2014-10-08 | 唐山市丰南区天泽科技有限公司 | Repair method for cold drawing internal die |
| CN104862693A (en) * | 2015-04-24 | 2015-08-26 | 燕山大学 | Laser cladding repair method of tower wheel of wire drawing machine |
| CN109385631A (en) * | 2018-12-10 | 2019-02-26 | 山东泰利先进制造研究院有限公司 | A kind of laser melting coating complex repairation manufacturing method and its application |
| CN110102878A (en) * | 2019-06-03 | 2019-08-09 | 燕山大学 | The CMT and laser melting coating combined-repair method of roller mill main axle flat head sleeve inner hole |
| CN110257826A (en) * | 2019-07-19 | 2019-09-20 | 燕山大学 | Grain roll bearing position laser cladding method and laser melting coating alloy powder |
| CN110273155A (en) * | 2019-07-31 | 2019-09-24 | 天津玛斯特车身装备技术有限公司 | A kind of laser cladding reconstructing technique |
| CN110396689A (en) * | 2019-08-02 | 2019-11-01 | 燕山大学 | A kind of laser melting coating strengthens the preparation method of Centrifugal rolling |
| CN111471993A (en) * | 2020-05-29 | 2020-07-31 | 燕山大学 | Laser cladding repair material for four rollers of sintering four-roller crusher and remanufacturing method |
| CN111593343A (en) * | 2020-06-10 | 2020-08-28 | 中国航发北京航空材料研究院 | Process method for repairing flap slide rail chromium plating surface chipping defect by laser cladding |
| CN111549342A (en) * | 2020-06-12 | 2020-08-18 | 兰州理工大学白银新材料研究院 | Laser cladding repair method for double-row chain wheel |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102732831B (en) | Laser repairing process for automobile mold | |
| CN102560478B (en) | Laser cladding method | |
| CN102189316B (en) | Submerged-arc welding overlaying repairing method for stainless steel hot rolled delivery roll | |
| AU2016253557B2 (en) | A method for repairing a sprocket wheel by 3d printing | |
| CN110273155A (en) | A kind of laser cladding reconstructing technique | |
| CN102373468A (en) | Wide-band laser-induced hybrid cladding restoration and surface strengthening method for dies | |
| CN104357834A (en) | Remanufacturing method for continuous casting roller | |
| CN106544671A (en) | A kind of renovation technique of automobile die | |
| CN105297009A (en) | Laser-cladding repairing process for centering roller | |
| CN102357778A (en) | Manufacturing method of pulling straightening roller | |
| CN110284134B (en) | Laser cladding repair process for disc shear blade | |
| CN110052610B (en) | Additive manufacturing method of cast iron roller | |
| CN101225463A (en) | Method for restoring and improving service life of hot roller and cold rolling subsidiary roller | |
| CN109722664A (en) | A kind of novel steel rail reparation alloy powder and the method for Rail Surface Abrasion reparation | |
| CN106334900A (en) | Overlaying welding repair method used for worn middle plate of middle slot of scraper conveyer | |
| CN113061885A (en) | Laser cladding repair method for circular cooler bend | |
| CN114473371A (en) | Preparation method of blade material on shearing machine and shearing test equipment | |
| CN104148874B (en) | Manual arc welding restorative procedure after the wearing and tearing of universal rolling mill vertical roll axle box bearing seat | |
| CN111001992A (en) | Method for compositing rail beam blank-opening roller into semi-high-speed steel roller through overlaying welding | |
| Qamar et al. | Analysis of product defects in a typical aluminum extrusion facility | |
| CN103658929A (en) | Method for repairing and manufacturing bending roll in surfacing mode | |
| CN103668180B (en) | With the laser repairing process of the compact vehicle mould in die wear position | |
| CN108165983A (en) | A kind of laser repair method of mobile cross head | |
| CN103192225B (en) | Metallurgical vehicle wheel set repairing method | |
| CN108453467A (en) | A method of manufacturing bending roll using technology for repairing surfacing |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210702 |