CN109207992A - A kind of method of stainless steel material laser melting coating Ni60A abrasion-proof corrosion-proof erosion resisting coating - Google Patents
A kind of method of stainless steel material laser melting coating Ni60A abrasion-proof corrosion-proof erosion resisting coating Download PDFInfo
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- CN109207992A CN109207992A CN201811068415.7A CN201811068415A CN109207992A CN 109207992 A CN109207992 A CN 109207992A CN 201811068415 A CN201811068415 A CN 201811068415A CN 109207992 A CN109207992 A CN 109207992A
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- China
- Prior art keywords
- stainless steel
- ni60a
- proof
- laser melting
- coating
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Classifications
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- 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
-
- 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
- C22C19/05—Alloys based on nickel or cobalt based on nickel with chromium
- C22C19/058—Alloys based on nickel or cobalt based on nickel with chromium without Mo and W
Abstract
The present invention provides a kind of method of stainless steel material laser melting coating Ni60A abrasion-proof corrosion-proof erosion resisting coating, the preparation method includes: surface treatment step, there is metallic luster including use sand paper polishing stainless steel surface to stainless steel surface, then clean stainless steel surface with solvent, is then dried up with hair dryer；Ni60A powder under vacuum baking step, including Ni60A powder is subjected to vacuum drying processing；Laser melting coating step, the Ni60A powder laser cladding including that will complete vacuum drying obtain cladding in the abrasion-proof corrosion-proof erosion resisting coating of surface of stainless steel in the stainless steel surface for completing surface treatment.Prepared laser melting coating Ni60A coating hardness with higher and preferable wear-corrosion resistance.
Description
Technical field
The present invention relates to material surface modifying technology field, in particular to a kind of stainless steel material laser melting coating Ni60A is resistance to
The method for grinding corrosion-resistant finishes.
Background technique
Laser surface modification is studied to have obtained swift and violent development at present, while the focus studied has had turned to laser melting coating
Technology brings very big economic benefit to daily production and practice.
Laser melting and coating technique is a kind of new surface risen with the development of high power laser the 1970s
Modification technology refers to and alloy powder or ceramic powders heats and melted rapidly with matrix surface under laser beam effect, light beam
It removes rear self-excitation and is cooled into that dilution rate is extremely low, be in the surface covering of metallurgical bonding with basis material, to significantly improve matrix
A kind of surface reinforcing method of surface abrasion resistance, anti-corrosion, heat-resisting, anti-oxidant and electrical characteristic etc..
Laser melting and coating technique is a kind of very high new technology of economic benefit, it can prepare height on cheap metal substrate
Property of the alloy surface of performance without influencing matrix, reduces cost, saves valuable Rare Metals Materials, but answering in life
With less, especially modified there are no the surface carried out using laser melting and coating technique to stainless steel used in everyday method.
Therefore, the method for how using laser melting coating forms preferable wear resistant corrosion resistant figure layer on common stainless steel surface,
As current problem to be solved.
Summary of the invention
Problems solved by the invention is to provide a kind of side of stainless steel material laser melting coating Ni60A abrasion-proof corrosion-proof erosion resisting coating
Method, comprising the following steps:
A) surface treatment step, including there is metallic luster using sand paper polishing stainless steel surface to stainless steel surface, then
Stainless steel surface is cleaned with solvent, is then dried up with hair dryer；
B) Ni60A powder under vacuum baking step, including Ni60A powder is subjected to vacuum drying processing；
C) surface treatment is completed in laser melting coating step, the Ni60A powder laser cladding including that will complete vacuum drying
Stainless steel surface obtains cladding in the abrasion-proof corrosion-proof erosion resisting coating of surface of stainless steel.
Optionally, sand paper described in step a) is the sand paper of a variety of different models of the model between 240#-1200#；Institute
Stating solvent is acetone.
Optionally, Ni60A powder described in step b) is Co-based alloy powder, and granularity is within the scope of -140+320 mesh.
Optionally, the ingredient of Ni60A powder described in step b) includes: the C of 0.7-1.0wt%, the B of 3.0-4.5wt%,
The Fe of the Cr of the Si of 3.5-5.5wt%, 15-18wt%, 0-5wt%, remaining as Ni.
Optionally, the power of laser described in step c) is 1500-3500W, spot diameter 4mm, scanning speed 4-
6mm/s。
Optionally, the method that laser melting coating described in step c) uses multiple tracks cladding feeds path as linear reciprocation, overlap joint
Rate is 30%.
Compared with prior art, technical solution provided by the invention has the advantage that
The method that the present invention uses laser melting coating is formed homogeneous effectively by Ni60A cladding and common steel tube surface
Surface covering, laser cladding can make to combine closely after laser cladding layer and stainless steel base cladding, into
Phenomena such as being not in coating shedding during row fretting wear.The method provided through the invention is prepared wear-resisting resistance to
Corrosion resistant coating hardness with higher.
Detailed description of the invention
Fig. 1 is the process of the method for one embodiment of the invention stainless steel material laser melting coating Ni60A abrasion-proof corrosion-proof erosion resisting coating
Schematic diagram；
Fig. 2 is the microhardness figure of laser cladding layer and stainless steel base in one embodiment of the invention；
Fig. 3 is the polishing scratch optical picture of laser cladding layer and stainless steel base in one embodiment of the invention；
Fig. 4 is the electric polarization curve figure of laser cladding layer and stainless steel base in one embodiment of the invention.
Specific embodiment
It can be seen from background technology that Laser Surface Modification Technology is there is presently no stainless steel used in everyday is applied to, especially
It is the method being modified not yet using laser melting and coating technique to the surface that stainless steel used in everyday carries out.
To solve the above-mentioned problems, the present invention provides a kind of stainless steel material laser melting coating Ni60A abrasion-proof corrosion-proof erosion resisting coating
Method, can be improved the hardness and wear-corrosion resistance of surface of stainless steel.
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
The method of stainless steel material laser melting coating Ni60A abrasion-proof corrosion-proof erosion resisting coating of the present invention is shown with reference to Fig. 1, Fig. 1
Flow diagram.Specifically, including following basic step:
A) surface treatment step, including there is metallic luster using sand paper polishing stainless steel surface to stainless steel surface, then
Stainless steel surface is cleaned with solvent, is then dried up with hair dryer；
B) Ni60A powder under vacuum baking step, including Ni60A powder is subjected to vacuum drying processing；
C) surface treatment is completed in laser melting coating step, the Ni60A powder laser cladding including that will complete vacuum drying
Stainless steel surface obtains cladding in the abrasion-proof corrosion-proof erosion resisting coating of surface of stainless steel.
Below in conjunction with attached drawing, the present invention will be further described.
With reference to Fig. 1, step a) is executed, metallic luster occurs using sand paper polishing stainless steel surface to stainless steel surface, then
Stainless steel surface is cleaned with solvent, is then dried up with hair dryer.
In the present invention, the sand paper uses the sand paper for a variety of different models that sand paper is model between 240#-1200#,
The impurity of stainless steel surface can be more rapidly and efficiently disposed using the sand paper of different model thickness unevenness；The solvent is
Acetone can effectively clean up the spots such as the grease on surface.
With reference to Fig. 1, step b) is executed, Ni60A powder is subjected to vacuum drying processing.
In the present invention, the Ni60A powder is Co-based alloy powder, and granularity is within the scope of -140+320 mesh；The Ni60A
The ingredient of powder includes: the C of 0.7-1.0wt%, the Cr of the Si of the B of 3.0-4.5wt%, 3.5-5.5wt%, 15-18wt%, 0-
The Fe of 5wt%, remaining as Ni.Cr element can effectively improve the rub resistance abrasion resistance properties of laser cladding layer.
With reference to Fig. 1, step c) is executed, surface treatment is completed into the Ni60A powder laser cladding for completing vacuum drying
Stainless steel surface obtains cladding in the abrasion-proof corrosion-proof erosion resisting coating of surface of stainless steel.
In the present invention, the power of the laser is 1500-3500W, spot diameter 4mm, scanning speed 4-6mm/s；
The method that the laser melting coating uses multiple tracks cladding, feeds path as linear reciprocation, overlapping rate 30%.Laser cladding can be with
Making to combine closely after cladding layer and stainless steel base cladding, laser cladding layer and stainless steel base faying face are smooth,
Phenomena such as crack is less with stomata, during carrying out fretting wear is not in coating shedding.
Embodiment 1
Surface treatment: choosing having a size of 100mm × 60mm × 8mm stainless steel is matrix, using two kinds of different models
Sand paper polishes to it, until using the spot of acetone clean the surface after its presentation metallic luster, is then dried up using hair dryer.
The drying of Ni60A powder under vacuum: Ni60A Co-based alloy powder is put into vacuum oven and carries out drying and processing.
Laser melting coating: laser melting coating operation, laser power 2000W, hot spot are carried out using YLS-4000 optical fiber laser
Diameter is 4mm, scanning speed 5mm/s, using the method for multiple tracks cladding, is fed path as linear reciprocation, overlapping rate 30%.
Micro-hardness testing and wear resistant corrosion resistant test are carried out to the stainless steel surface for completing laser melting coating:
With reference to Fig. 2, Fig. 2 shows the microhardness figures of laser cladding layer in one embodiment of the invention and stainless steel base.
As shown in Figure 2, the microhardness of stainless steel base part is in 300HV0.2Left and right, the microhardness value of heat affected area is in 650HV0.2
Left and right, the hardness of laser cladding layer is in 900HV0.2Left and right, compares stainless steel base, the hardness of laser cladding layer has significantly
It improves.
The polishing scratch optical picture of laser cladding layer and stainless steel base in one embodiment of the invention is shown with reference to Fig. 3, Fig. 3,
The wear scar width both compared, (31) they are the surface polishing scratch of stainless steel base, and (32) are the surface polishing scratch of laser cladding layer, two
The active force that person applies is 20Kg, and action time is 20min, and as seen from the figure, the scratch width of laser melting coating layer region is bright
It is powerful and influential more much smaller than the scratch width of stainless steel base, it is seen that friction and wear behavior phase of the laser cladding layer with stainless steel base
Than there is significant raising.
The electric polarization curve of laser cladding layer and stainless steel base in one embodiment of the invention is shown with reference to Fig. 4, Fig. 4
Figure.Laser cladding layer is placed in preparatory prepared 3.5wt% sodium chloride electrolysis solution with stainless steel base and is measured,
As a result as described in Figure 4, the corrosion potential on stainless steel base surface is -0.91V, and the corrosion potential of laser cladding layer be -
0.87V, the current potential of laser melting coating layer surface are higher than the surface potential of stainless steel base, illustrate that the corrosion resistance of laser cladding layer is excellent
In the corrosion resistance of stainless steel base.
Although present disclosure is as above, present invention is not limited to this.Anyone skilled in the art are not departing from this
It in the spirit and scope of invention, can make various changes or modifications, therefore protection scope of the present invention should be with claim institute
Subject to the range of restriction.
Claims (6)
1. a kind of method of stainless steel material laser melting coating Ni60A abrasion-proof corrosion-proof erosion resisting coating, which is characterized in that including following step
It is rapid:
A) surface treatment step, including metallic luster occur using sand paper polishing stainless steel surface to stainless steel surface, then with molten
Stainless steel surface is cleaned in agent, is then dried up with hair dryer；
B) Ni60A powder under vacuum baking step, including Ni60A powder is subjected to vacuum drying processing；
C) the stainless of surface treatment is completed in laser melting coating step, the Ni60A powder laser cladding including that will complete vacuum drying
Steel surface obtains cladding in the abrasion-proof corrosion-proof erosion resisting coating of surface of stainless steel.
2. the method for stainless steel material laser melting coating Ni60A abrasion-proof corrosion-proof erosion resisting coating according to claim 1, feature exist
In sand paper described in step a) is the sand paper of a variety of different models of the model between 240#-1200#；The solvent is acetone.
3. the method for stainless steel material laser melting coating Ni60A abrasion-proof corrosion-proof erosion resisting coating according to claim 1, feature exist
In Ni60A powder described in step b) is Co-based alloy powder, and granularity is within the scope of -140+320 mesh.
4. the method for stainless steel material laser melting coating Ni60A abrasion-proof corrosion-proof erosion resisting coating according to claim 1, feature exist
In the ingredient of Ni60A powder described in step b) includes: the C of 0.7-1.0wt%, the B of 3.0-4.5wt%, 3.5-5.5wt%
Si, the Fe of the Cr of 15-18wt%, 0-5wt%, remaining as N i.
5. the method for stainless steel material laser melting coating Ni60A abrasion-proof corrosion-proof erosion resisting coating according to claim 1, feature exist
In the power of laser described in step c) is 1500-3500W, spot diameter 4mm, scanning speed 4-6mm/s.
6. the method for stainless steel material laser melting coating Ni60A abrasion-proof corrosion-proof erosion resisting coating according to claim 1, feature exist
In the method that laser melting coating described in step c) uses multiple tracks cladding feeds path as linear reciprocation, overlapping rate 30%.
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| CN201811068415.7A CN109207992A (en) | 2018-09-13 | 2018-09-13 | A kind of method of stainless steel material laser melting coating Ni60A abrasion-proof corrosion-proof erosion resisting coating |
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| CN201811068415.7A CN109207992A (en) | 2018-09-13 | 2018-09-13 | A kind of method of stainless steel material laser melting coating Ni60A abrasion-proof corrosion-proof erosion resisting coating |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114411145A (en) * | 2021-12-16 | 2022-04-29 | 中北大学 | Method for reducing stainless steel surface cladding coating cracks under high-temperature service |
| CN114411145B (en) * | 2021-12-16 | 2024-04-19 | 中北大学 | Method for reducing cracks of cladding coating on stainless steel surface under high-temperature service |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07228982A (en) * | 1994-02-16 | 1995-08-29 | Sumitomo Osaka Cement Co Ltd | Antibacterial and mildewproofing treatment of stainless steel product |
| CN102465294A (en) * | 2010-11-17 | 2012-05-23 | 杭州中科新松光电有限公司 | Method for carrying out laser-cladding on high-hardness nickel-based alloy material in large area |
| CN104831275A (en) * | 2015-05-09 | 2015-08-12 | 芜湖鼎瀚再制造技术有限公司 | Laser hot cladding process of blade |
-
2018
- 2018-09-13 CN CN201811068415.7A patent/CN109207992A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07228982A (en) * | 1994-02-16 | 1995-08-29 | Sumitomo Osaka Cement Co Ltd | Antibacterial and mildewproofing treatment of stainless steel product |
| CN102465294A (en) * | 2010-11-17 | 2012-05-23 | 杭州中科新松光电有限公司 | Method for carrying out laser-cladding on high-hardness nickel-based alloy material in large area |
| CN104831275A (en) * | 2015-05-09 | 2015-08-12 | 芜湖鼎瀚再制造技术有限公司 | Laser hot cladding process of blade |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114411145A (en) * | 2021-12-16 | 2022-04-29 | 中北大学 | Method for reducing stainless steel surface cladding coating cracks under high-temperature service |
| CN114411145B (en) * | 2021-12-16 | 2024-04-19 | 中北大学 | Method for reducing cracks of cladding coating on stainless steel surface under high-temperature service |
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