CN109881194A - One kind remanufacturing pipeline and preparation method thereof based on inner wall thermal spraying and laser melting coating - Google Patents
One kind remanufacturing pipeline and preparation method thereof based on inner wall thermal spraying and laser melting coating Download PDFInfo
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- CN109881194A CN109881194A CN201910143400.0A CN201910143400A CN109881194A CN 109881194 A CN109881194 A CN 109881194A CN 201910143400 A CN201910143400 A CN 201910143400A CN 109881194 A CN109881194 A CN 109881194A
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Abstract
The present invention relates to one kind to remanufacture pipeline and preparation method thereof based on inner wall thermal spraying and laser melting coating, using small-bore pipeline as matrix, using laser melting coating in inner surface of pipeline fray fusing and coating wear-resistant coating, after surface roughening treatment, carry out inner wall plasma thermal sprayed, laser remolten technique finally is used in pipe ends mouth, coating and matrix are subjected to the remelting of groove chamfering, to enhance the binding force of port coating and matrix.
Description
Technical field
The present invention relates to one kind to remanufacture pipeline and preparation method thereof based on inner wall thermal spraying and laser melting coating, more particularly to
A method of using laser melting coating and the reparation of inner wall hot-spraying technique and laser remolten pipe end being used, enhancing, which is repaired, to be applied
The binding force of layer and matrix.
Background technique
Industry and many pipelines of national defence, such as engine cylinder, engine jet pipe, gun tube, hydraulic cylinder, petroleum pipeline
Deng inner wall often faces the operating conditions such as high temperature, abrasion, erosion, these harsh environment easily cause the failure of pipeline and report
It is useless, and therefore considerably increase production cost.And the reparation of pipeline remanufactures and can save a large amount of cost for enterprise.
Common pipe repairing method industrial at present has filling internal lining pipe, such as Motor Engine Cylinder, due to bearing
High temperature, impacting with high pressure close the reciprocating friction of piston, are that the more serious components of abrasion can reduce cylinder sleeve using cast steel set
The abrasion of inner wall mitigates the weight of engine, extends the service life of engine.It has been equivalent to additional one zero using internal lining pipe
Component, while guaranteeing that internal lining pipe is bonded with original pipeline again, application range is very limited.In addition, industrial also utilize steel
Healant first strikes multiple shrinkage pools on inner wall, after smearing steel healant, and carries out the method for airtight heating heat preservation for repairing
Multiple cylinder barrel, such as repair jack outer shell.Steel healant is suitable for the pipeline of a small amount of and dotted abrasion.Industrially also using heat
Spraying technology, which repair, remanufactures pipeline, but since there are coatings and basal body binding force difference etc. to lack for single hot-spraying technique
It falls into, and pipeline end face is easy to the abrasion for occurring new due to the disengaging of interior mill part.
Therefore, a kind of coating binding force height is developed, the relatively wide inner wall duct repairing reproduction method of applicable surface will very
There is engineering significance.
Summary of the invention
In order to avoid the shortcomings of the prior art, the present invention proposes that one kind is made again based on inner wall thermal spraying and laser melting coating
Tubing road and preparation method thereof may be implemented to inner wall of the pipe reparation, while improve the binding force of pipeline end face coating and matrix.
The technical scheme is that a kind of remanufacture pipeline and its preparation side based on inner wall thermal spraying and laser melting coating
Method, using small-bore pipeline as matrix, after the processing of pipe ends end chamfer, inner surface roughening, the pre-heat treatment, using laser
Cladding is in inner surface of pipeline fray fusing and coating wear-resistant coating, after surface roughening treatment, carries out inner wall plasma thermal sprayed, finally
Laser remolten technique is used in pipe ends mouth, coating and matrix are subjected to the remelting of groove chamfering, to enhance port coating and base
The binding force of body.
It is of the present invention remanufacture pipeline and preparation method thereof the following steps are included:
(1) using pipeline as matrix, chamfering or fillet is carried out to pipe ends mouth and handled, to base inner surface roughening treatment,
The pre-heat treatment is carried out to pipeline；
(2) cladding reparation is carried out in fray using laser melting coating；
(3) using inner wall hot-spraying technique in base inner surface spray metal or composite powder coatings；
(4) laser remolten method is used, carries out laser remolten, at pipe ends mouth chamfering to enhance port coating and base
The binding force of body.
Described one kind is based on inner wall thermal spraying and laser melting coating remanufactures pipeline and preparation method thereof, it is characterised in that step
Suddenly 45 ° of -75 ° of angles are fallen to pipe ends mouth in (1), chamfering distance is 2mm-10mm or fillet is handled, radius of corner 2mm-
10mm。
Described one kind is based on inner wall thermal spraying and laser melting coating remanufactures pipeline and preparation method thereof, it is characterised in that step
Suddenly roughing in surface is mainly sandblasting in (1), and inside surface roughness is in 0.8 μm of -3 μ m after roughening.
Described one kind is based on inner wall thermal spraying and laser melting coating remanufactures pipeline and preparation method thereof, it is characterised in that step
Suddenly 100 DEG C -200 DEG C of the pre-heat treatment is carried out in (1) to pipeline, processing time range is 30min-60min.
Described one kind is based on inner wall thermal spraying and laser melting coating remanufactures pipeline and preparation method thereof, it is characterised in that step
Suddenly the laser power range of laser melting coating is 1KW-4KW, multi-track overlapping, overlapping rate 20%-50% in (2).
Described one kind is based on inner wall thermal spraying and laser melting coating remanufactures pipeline and preparation method thereof, it is characterised in that step
Suddenly laser cladding powder is Fe base self-fluxing alloyed powder in (2)
Described one kind is based on inner wall thermal spraying and laser melting coating remanufactures pipeline and preparation method thereof, it is characterised in that step
Suddenly inner wall hot-spraying technique can be supersonic speed thermal spraying, plasma thermal sprayed technique, coating thickness 0.2mm- in (3)
0.8mm。
Described one kind is based on inner wall thermal spraying and laser melting coating remanufactures pipeline and preparation method thereof, it is characterised in that step
Suddenly inner wall heat spray coating layer material is iron-based and Co-based alloy powder in (3).
Described one kind is based on inner wall thermal spraying and laser melting coating remanufactures pipeline and preparation method thereof, it is characterised in that step
Suddenly laser remolten power is 1KW-3KW in (4), and spot diameter 3mm-8mm, beam spot scans speed is 100mm/min-900mm/
Min, overlapping rate 30%-70%.
Described one kind is based on inner wall thermal spraying and laser melting coating remanufactures pipeline and preparation method thereof, it is characterised in that step
Suddenly in (4) laser beam and pipeline end face chamfer plane at 65 ° -90 °.
It is of the present invention that pipeline and preparation method thereof is remanufactured based on inner wall thermal spraying and laser melting coating, first using sharp
The method inner surface fray of light cladding is repaired, and forms one layer in inner wall surface in combination with the method for inner wall thermal spraying
Uniform coating, and laser remolten is carried out to pipe ends endface, so that coating and matrix is formed metallurgical bonding.
The present invention solves small diameter metal pipeline inner wall reparation and remanufactures iron-based or Ni-based coating, tubular member cladding and
Spraying length is generally higher than 500mm, inside diameter ranges 70mm-300mm, and binding force is not less than 80MPa, and coating consistency is less than
0.5%, meanwhile, laser remolten pipe ends end chamfer, so that the binding force of coating and matrix is not less than 60MPa, to make
Part is recycled.
Specific embodiment
Below by embodiment, the invention will be further described.
Example 1
It is 70mm by internal diameter, fall 45° angle respectively for the cylinder both ends end face that length is 420mm, and chamfering distance is 3mm, interior table
Face carries out sandblasting roughening, and obtaining inside surface roughness is 1.3 μm, is put into heating furnace and preheats 30min, and setting temperature is 100 DEG C.
Cladding processing is carried out using the laser power of 2KW first, is protected using argon gas, multi-track overlapping, overlapping rate 33%.Laser
The powder of cladding selects the Fe45 powder trade mark.After laser melting coating fills fray, rough honing is carried out, and then use plasma thermal jet
Coating method selects Ni35 trade mark powder, Ar flow 35L/min, H2 flow 20L/min, powder feeding rate 20g/min, coating thickness
0.4mm.At chamfering, using the laser of 2KW, beam orthogonal irradiates chamfering, and spot diameter is adjusted to 5mm, beam spot scans speed
Degree is 500mm/min, overlapping rate 30%.By detecting to cylinder sample, laser cladding coating binding force 105MPa is applied
Layer consistency 0.3%, both ends end chamfer coating and matrix have carried out metallurgy, binding force 83MPa.
Example 2
It is 110mm by internal diameter, rounded corner is distinguished in the jack outer shell both ends end face that length is 350mm, and chamfering distance is
2mm, inner surface carry out sandblasting roughening, and obtaining inside surface roughness is 0.6 μm, is put into heating furnace and preheats 40min, and temperature is arranged
It is 120 DEG C.Cladding is carried out using the laser power of 3KW first, using argon gas as protective gas, multi-track overlapping, overlapping rate is
40%.The powder of laser melting coating selects the 30%Fe35+70%Ni45 powder trade mark.After laser melting coating fills fray, carry out thick
Honing, and then plasma thermal sprayed method is used, selection Ni455 trade mark powder, Ar flow 40L/min, H2 flow 25L/min,
Powder feeding rate 30g/min, coating thickness 0.6mm.At chamfering, using the laser of 3KW, beam orthogonal irradiates chamfering, and hot spot is straight
Diameter is adjusted to 7mm, and beam spot scans speed is 600mm/min, overlapping rate 40%.By being examined to jack outer shell sample
It surveys, laser cladding coating binding force 120MPa, coating consistency 0.4%, both ends end chamfer coating and matrix have carried out metallurgy,
Binding force is 95MPa.
Claims (10)
1. one kind remanufactures pipeline and preparation method thereof based on inner wall thermal spraying and laser melting coating, which is characterized in that this method is adopted
With following steps:
(1) using pipeline as matrix, chamfering is carried out to pipe ends mouth or fillet is handled, to base inner surface roughening treatment, to pipe
Road carries out the pre-heat treatment；
(2) cladding reparation is carried out in fray using laser melting coating；
(3) using inner wall hot-spraying technique in base inner surface spray metal or composite powder coatings；
(4) laser remolten method is used, laser remolten is carried out at pipe ends mouth chamfering, to enhance port coating and matrix
Binding force.
2. one kind according to claim 1 remanufactures pipeline and preparation method thereof based on inner wall thermal spraying and laser melting coating,
It is characterized in that, falling 45 ° of -75 ° of angles to pipe ends mouth described in step (1), chamfering distance is at 2mm-10mm or fillet
Reason, radius of corner 2mm-10mm.
3. one kind according to claim 1 remanufactures pipeline and preparation method thereof based on inner wall thermal spraying and laser melting coating,
It is characterized in that, roughing in surface described in step (1) is mainly sandblasting, inside surface roughness is in 0.8 μm of -3 μ m after roughening.
4. one kind according to claim 1 remanufactures pipeline and preparation method thereof based on inner wall thermal spraying and laser melting coating,
It is characterized in that, carrying out 100 DEG C -200 DEG C of the pre-heat treatment described in step (1) to pipeline, processing time range is 30min-
60min。
5. one kind according to claim 1 remanufactures pipeline and preparation method thereof based on inner wall thermal spraying and laser melting coating,
It is characterized in that, the laser power range of laser melting coating described in step (2) is 1KW-4KW, multi-track overlapping, overlapping rate is
20%-50%.
6. one kind according to claim 1 remanufactures pipeline and preparation method thereof based on inner wall thermal spraying and laser melting coating,
It is characterized in that, laser cladding powder described in step (2) is Fe base self-fluxing alloyed powder.
7. one kind according to claim 1 remanufactures pipeline and preparation method thereof based on inner wall thermal spraying and laser melting coating,
It is characterized in that, inner wall hot-spraying technique described in step (3) can be supersonic speed thermal spraying, plasma thermal sprayed technique, spray
It applies with a thickness of 0.2mm-0.8mm.
8. one kind according to claim 1 remanufactures pipeline and preparation method thereof based on inner wall thermal spraying and laser melting coating,
It is characterized in that, inner wall heat spray coating layer material described in step (3) is iron-based and Co-based alloy powder.
9. one kind according to claim 1 remanufactures pipeline and preparation method thereof based on inner wall thermal spraying and laser melting coating,
It is characterized in that, laser remolten power described in step (4) is 1KW-3KW, spot diameter 3mm-8mm, beam spot scans speed
For 100mm/min-900mm/min, overlapping rate 30%-70%.
10. one kind according to claim 1 remanufactures pipeline and preparation method thereof based on inner wall thermal spraying and laser melting coating,
It is characterized in that, laser beam described in step (4) and pipeline end face chamfer plane are at 65 ° -90 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910143400.0A CN109881194A (en) | 2019-02-26 | 2019-02-26 | One kind remanufacturing pipeline and preparation method thereof based on inner wall thermal spraying and laser melting coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910143400.0A CN109881194A (en) | 2019-02-26 | 2019-02-26 | One kind remanufacturing pipeline and preparation method thereof based on inner wall thermal spraying and laser melting coating |
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| CN109881194A true CN109881194A (en) | 2019-06-14 |
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| CN201910143400.0A Pending CN109881194A (en) | 2019-02-26 | 2019-02-26 | One kind remanufacturing pipeline and preparation method thereof based on inner wall thermal spraying and laser melting coating |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110144490A (en) * | 2019-06-21 | 2019-08-20 | 燕山大学 | A kind of compound copper bush of base steel and preparation method thereof |
| CN111155088A (en) * | 2020-01-15 | 2020-05-15 | 江苏科环新材料有限公司 | Method for remanufacturing water-cooled wall of waste incineration power generation boiler |
| CN112695318A (en) * | 2020-12-22 | 2021-04-23 | 天津修船技术研究所(中国船舶重工集团公司第六三一三研究所) | Maintenance method for nozzle flow channel of rotary drum in disc type separator |
| CN115522194A (en) * | 2021-06-25 | 2022-12-27 | 宝山钢铁股份有限公司 | Manufacturing method of bimetal metallurgy composite oil casing pipe and bimetal metallurgy composite oil casing pipe |
| WO2023152252A1 (en) * | 2022-02-11 | 2023-08-17 | Sms Group Gmbh | Pipe section, pipe assembly, method for manufacturing a pipe section and a pipe arrangement, and use of a pipe assembly |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101112701A (en) * | 2007-09-05 | 2008-01-30 | 南京航空航天大学 | Processing method of hot sprayed gradient coatings based on time after time laser refusing |
| US20100279023A1 (en) * | 2009-04-30 | 2010-11-04 | Grzegorz Jan Kusinski | Surface Treatment of Amorphous Coatings |
| CN102277552A (en) * | 2010-06-09 | 2011-12-14 | 上海工程技术大学 | Metal surface treatment method employing arc-plasma spraying-laser remelting |
| CN105256309A (en) * | 2015-11-15 | 2016-01-20 | 山东能源重装集团大族再制造有限公司 | Fusion covering method for pipeline inner wall |
| CN108950540A (en) * | 2018-07-24 | 2018-12-07 | 亚琛联合科技（天津）有限公司 | A kind of combined machining method of ultrahigh speed laser melting coating and surface remelting |
| CN109207994A (en) * | 2018-09-21 | 2019-01-15 | 湖南工业大学 | Three sections of reciprocating laser cladding apparatus of one kind and method |
-
2019
- 2019-02-26 CN CN201910143400.0A patent/CN109881194A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101112701A (en) * | 2007-09-05 | 2008-01-30 | 南京航空航天大学 | Processing method of hot sprayed gradient coatings based on time after time laser refusing |
| US20100279023A1 (en) * | 2009-04-30 | 2010-11-04 | Grzegorz Jan Kusinski | Surface Treatment of Amorphous Coatings |
| CN102277552A (en) * | 2010-06-09 | 2011-12-14 | 上海工程技术大学 | Metal surface treatment method employing arc-plasma spraying-laser remelting |
| CN105256309A (en) * | 2015-11-15 | 2016-01-20 | 山东能源重装集团大族再制造有限公司 | Fusion covering method for pipeline inner wall |
| CN108950540A (en) * | 2018-07-24 | 2018-12-07 | 亚琛联合科技（天津）有限公司 | A kind of combined machining method of ultrahigh speed laser melting coating and surface remelting |
| CN109207994A (en) * | 2018-09-21 | 2019-01-15 | 湖南工业大学 | Three sections of reciprocating laser cladding apparatus of one kind and method |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110144490A (en) * | 2019-06-21 | 2019-08-20 | 燕山大学 | A kind of compound copper bush of base steel and preparation method thereof |
| CN111155088A (en) * | 2020-01-15 | 2020-05-15 | 江苏科环新材料有限公司 | Method for remanufacturing water-cooled wall of waste incineration power generation boiler |
| CN111155088B (en) * | 2020-01-15 | 2022-05-27 | 江苏科环新材料有限公司 | Method for remanufacturing water-cooled wall of waste incineration power generation boiler |
| CN112695318A (en) * | 2020-12-22 | 2021-04-23 | 天津修船技术研究所(中国船舶重工集团公司第六三一三研究所) | Maintenance method for nozzle flow channel of rotary drum in disc type separator |
| CN115522194A (en) * | 2021-06-25 | 2022-12-27 | 宝山钢铁股份有限公司 | Manufacturing method of bimetal metallurgy composite oil casing pipe and bimetal metallurgy composite oil casing pipe |
| WO2023152252A1 (en) * | 2022-02-11 | 2023-08-17 | Sms Group Gmbh | Pipe section, pipe assembly, method for manufacturing a pipe section and a pipe arrangement, and use of a pipe assembly |
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Application publication date: 20190614 |
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