CN102020880B - Light absorption coating for laser heat treatment of surface of metal material and coating method thereof - Google Patents
Light absorption coating for laser heat treatment of surface of metal material and coating method thereof Download PDFInfo
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- CN102020880B CN102020880B CN200910196218A CN200910196218A CN102020880B CN 102020880 B CN102020880 B CN 102020880B CN 200910196218 A CN200910196218 A CN 200910196218A CN 200910196218 A CN200910196218 A CN 200910196218A CN 102020880 B CN102020880 B CN 102020880B
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Abstract
The invention relates to a light absorption coating for the laser heat treatment of the surface of a metal material. Based on 1,000 milliliters, the coating is prepared from 150 to 300 grams of silicon dioxide, 70 to 150 grams of magnesium oxide, 50 to 100 grams of carbon powder, 20 to 50 grams of settling agent and 600 milliliters of distilled water and balance of ethanol. The invention also provides a coating method for the coating. For example, after a martensite material or a martensite precipitation-hardening stainless steel material is coated with the light absorption material and subjected to the laser treatment, the surface hardness Hv of the treated part of the material can be higher than 500 and the depth of a hardened layer can be maximally higher than 10 mm. The light absorption coating is easy to coat and rapidly dried, does not produce pollutions such as odor, smoke and the like in the laser treatment, and is easy to clean and avoids any component permeating a matrix structure after the laser treatment.
Description
Technical field
The present invention relates to a kind of coating and coating method thereof, relate in particular to a kind of Laser Heat Treatment in Metallic Materials Surface extinction coating and coating method thereof of being used for.
Background technology
Most metal, especially presenting the glossy metallic surface through cut is the CO of 10.6mm to wavelength
2Laser reflectivity is all very high, generally can reach 80%～90%.That is to say that the utilization ratio of laser energy has only 10%～20% at most.This is for utilizing high-energy-density laser as thermal source, and it is extremely disadvantageous that metallic substance is carried out LASER HEAT TREATMENT.So before metallic substance carries out LASER HEAT TREATMENT, must implement precoating extinction dope layer to desiring treat surface, to improve to CO
2The receptivity of laser.Usually adopt phosphate coat on the engineering, but this method requires very harshness to component surface cleaning, degreasing etc., work efficiency is low, cost is high.Also have and adopt commercially available other types extinction coating, but actual effect can not meet the demands.
Summary of the invention
The object of the invention provides a kind of Laser Heat Treatment in Metallic Materials Surface extinction coating that is used for to the problems referred to above exactly, and this extinction coating applies easily, and fast drying can meet the demands fully.
Another object of the present invention is to provide a kind of coating method of above-mentioned extinction coating.
The used in order to reach the goal technical scheme of the present invention is:
A kind of Laser Heat Treatment in Metallic Materials Surface extinction coating that is used for, by 600 milliliters of silica 1 50～300 grams, Natural manganese dioxide 70～150 grams, carbon dust 50～100 grams, anti-settling agent 20～50 grams, zero(ppm) water, it is milliliter formulated to add ethanol to 1000.
The above-mentioned Laser Heat Treatment in Metallic Materials Surface extinction coating that is used for, said silicon-dioxide, Natural manganese dioxide and carbon dust are granularity and are narrower than 1000 purpose powder.
The present invention also provides a kind of coating method that is used for Laser Heat Treatment in Metallic Materials Surface extinction coating, may further comprise the steps:
A. clean the metallic surface that is coated with ethanol or acetone;
B. the said Laser Heat Treatment in Metallic Materials Surface extinction coating that is used for evenly is coated on said metallic surface;
C. after the extinction coating drying of treating to apply among the step B, repetitive coatings is one time again, and the total thickness of control coating is 0.035～0.1mm.
With the material is that martensite or martensitic precipitation material are example, applies extinction coating of the present invention, and after implementing laser treatment, the surface hardness of processed part material can reach more than the Hv:500, and case depth reaches as high as more than the 10mm.And has coating easily, fast drying; Pollution such as tasteless in the laser treatment, smokeless; After the laser treatment, the coating cleaning is easy, and coated component does not infiltrate advantages such as matrix.
Embodiment
Table 1
Table 2
| Embodiment | Apply total thickness (mm) | The input laser energy (w * t/mm2) | Surface hardness Hv | Case depth (mm) |
| 1 | 0.035～0.040 | 40 | 485 | 3.0 |
| 2 | 0.040～0.045 | 48 | 494 | 4.2 |
| 3 | 0.055～0.070 | 80 | 535 | 10.2 |
| 4 | 0.080～0.095 | 62 | 516 | 6.8 |
All be that martensite or martensitic precipitation material are example in following examples with the material.
Embodiment 1
At first the component ratio preparation according to embodiment in the table 11 is used for Laser Heat Treatment in Metallic Materials Surface extinction coating; Then with ethanol or acetone cleaning metallic surface to be coated; Above-mentioned coatings formulated in proportion evenly is coated on the metallic surface after the cleaning; Apply after to be dried one time, the total thickness of control coating is 0.035～0.040mm again, treats can carry out laser treatment behind the complete drying.
Embodiment 2
At first the component ratio preparation according to embodiment in the table 12 is used for Laser Heat Treatment in Metallic Materials Surface extinction coating; Then with ethanol or acetone cleaning metallic surface to be coated; Above-mentioned coatings formulated in proportion evenly is coated on the metallic surface after the cleaning; Apply after to be dried one time, the total thickness of control coating is 0.040～0.045mm again, treats can carry out laser treatment behind the complete drying.
Embodiment 3
At first the component ratio preparation according to embodiment in the table 13 is used for Laser Heat Treatment in Metallic Materials Surface extinction coating; Then with ethanol or acetone cleaning metallic surface to be coated; Above-mentioned coatings formulated in proportion evenly is coated on the metallic surface after the cleaning; Apply after to be dried one time, the total thickness of control coating is 0.055～0.070mm again, treats can carry out laser treatment behind the complete drying.
Embodiment 4
At first the component ratio preparation according to embodiment in the table 14 is used for Laser Heat Treatment in Metallic Materials Surface extinction coating; Then with ethanol or acetone cleaning metallic surface to be coated; Above-mentioned coatings formulated in proportion evenly is coated on the metallic surface after the cleaning; Apply after to be dried one time, the total thickness of control coating is 0.080～0.095mm again, treats can carry out laser treatment behind the complete drying.
To having applied the metallic substance of extinction coating of the present invention in the foregoing description 1 to 4; After laser treatment is implemented at the position of painting of coating, owing to after the irradiation of metallic substance Stimulated Light, the material that has certain depth is received lasing; Produce hardening phenomenon; In order to measure the degree of depth of sclerosis (effect), take method that material is carried out hardness test perpendicular to the exposure face, specifically; Measure the hardness of material internal exactly through the microhardness appearance, test result (" input laser energy " laser energy when being laser treatment wherein as shown in table 2; The hardness that " surface hardness " records for material surface; " case depth " is higher than the hardness of material before the laser treatment not for hardness, and apart from the lasing surface distance farthest).
Usually after the laser treatment, the surface hardness Hv of metallic substance need reach more than 400, and case depth reaches more than the 2mm; Just satisfy requirement, visible by the data of table 2, applied coating of the present invention after; Surface hardness Hv is 485～516, and case depth can reach 10mm, meets the demands fully.
Above embodiment only supplies to explain the present invention's usefulness; But not limitation of the present invention; The technician in relevant technologies field under the situation that does not break away from the spirit and scope of the present invention, can also make various conversion or modification; Therefore all technical schemes that are equal to also should belong to category of the present invention, should be limited each claim.
Claims (3)
1. one kind is used for Laser Heat Treatment in Metallic Materials Surface extinction coating; It is characterized in that; By 600 milliliters of silica 1 50～300 grams, Natural manganese dioxide 70～150 grams, carbon dust 50～100 grams, anti-settling agent 20～50 grams, zero(ppm) water, it is milliliter formulated to add ethanol to 1000.
2. be used for Laser Heat Treatment in Metallic Materials Surface extinction coating according to claim 1, it is characterized in that, said silicon-dioxide, Natural manganese dioxide and carbon dust are granularity and are narrower than 1000 purpose powder.
3. coating method that is used for Laser Heat Treatment in Metallic Materials Surface extinction coating according to claim 1 may further comprise the steps:
A. clean the metallic surface that is coated with ethanol or acetone;
B. the said Laser Heat Treatment in Metallic Materials Surface extinction coating that is used for evenly is coated on said metallic surface;
C. after the extinction coating drying of treating to apply among the step B, repetitive coatings is one time again, and the total thickness of control coating is 0.055～0.1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN200910196218A CN102020880B (en) | 2009-09-23 | 2009-09-23 | Light absorption coating for laser heat treatment of surface of metal material and coating method thereof |
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| CN200910196218A CN102020880B (en) | 2009-09-23 | 2009-09-23 | Light absorption coating for laser heat treatment of surface of metal material and coating method thereof |
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| CN102020880A CN102020880A (en) | 2011-04-20 |
| CN102020880B true CN102020880B (en) | 2012-10-24 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103115928A (en) * | 2013-02-05 | 2013-05-22 | 深圳市华星光电技术有限公司 | Device, machine and method for checking foreign substances on surfaces of glass |
| CN103992669B (en) * | 2014-03-16 | 2016-03-23 | 宿州学院 | A kind of Photo-thermal conversion paint prepared based on KAl2 (AlSi3O10) (OH) 2 |
| CN104212957B (en) * | 2014-09-11 | 2016-04-20 | 辽宁工程技术大学 | A kind of metallic substance laser surface hardening absorbing coating and preparation and application thereof |
| CN107629530A (en) * | 2017-09-13 | 2018-01-26 | 徐州万达回转支承有限公司 | A kind of light absorption paint for laser quenching and preparation method thereof |
| CN108085465A (en) * | 2017-12-21 | 2018-05-29 | 马鞍山市国菱机械刃模有限公司 | A kind of laser heat treatment method for the upper die of bending machine tool that bending strip flattens |
| CN113527951B (en) * | 2021-07-05 | 2022-09-20 | 西安理工大学 | Absorption protective layer and coating method for surface of metal part |
| CN113527963B (en) * | 2021-07-29 | 2022-06-17 | 浙江工业大学 | Laser quenching light absorption coating with heat preservation function and preparation method thereof |
| CN113997011B (en) * | 2021-09-28 | 2023-06-06 | 华润电力湖北有限公司 | Method for inhibiting corrosion damage of elliptical bearing of steam turbine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1470578A (en) * | 2003-06-13 | 2004-01-28 | 贵州工业大学 | Light-absorbing coating for laser treatment and its preparing method |
| CN101037771A (en) * | 2007-02-09 | 2007-09-19 | 上海工程技术大学 | Method for preparing TiC-TiB2 nano-micrometre multiple phase ceramic coating |
| CN101109032A (en) * | 2007-08-17 | 2008-01-23 | 沈阳大陆激光成套设备有限公司 | Technique of laser hardening ossifying process of vehicle mold |
| CN101220474A (en) * | 2008-01-25 | 2008-07-16 | 上海工程技术大学 | Method for manufacturing TiB2-WC reinforced Ni base composite coating |
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2009
- 2009-09-23 CN CN200910196218A patent/CN102020880B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1470578A (en) * | 2003-06-13 | 2004-01-28 | 贵州工业大学 | Light-absorbing coating for laser treatment and its preparing method |
| CN101037771A (en) * | 2007-02-09 | 2007-09-19 | 上海工程技术大学 | Method for preparing TiC-TiB2 nano-micrometre multiple phase ceramic coating |
| CN101109032A (en) * | 2007-08-17 | 2008-01-23 | 沈阳大陆激光成套设备有限公司 | Technique of laser hardening ossifying process of vehicle mold |
| CN101220474A (en) * | 2008-01-25 | 2008-07-16 | 上海工程技术大学 | Method for manufacturing TiB2-WC reinforced Ni base composite coating |
Non-Patent Citations (1)
| Title |
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| JP特开2003-268260A 2003.09.25 |
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