CN203557008U - Material surface laser blackening or coloring processing system - Google Patents
Material surface laser blackening or coloring processing system Download PDFInfo
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- CN203557008U CN203557008U CN201320715653.9U CN201320715653U CN203557008U CN 203557008 U CN203557008 U CN 203557008U CN 201320715653 U CN201320715653 U CN 201320715653U CN 203557008 U CN203557008 U CN 203557008U
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Abstract
The utility model discloses a material surface laser blackening or coloring processing system. The material surface laser blackening or coloring processing system comprises a laser, a laser collimation and beam expanding system, a focusing system, a work platform and a control system, and is characterized in that the laser is a pulse optical fiber laser with the wave length of 1.8-2.2 micrometers, the laser collimation and beam expanding system and the focusing system are arranged on a processing arm, the processing arm has motion freedom degrees in the horizontal and vertical directions relative to the work platform, and the focusing system is controlled by the control system to focus a laser beam on the surface of a to-be-machined material arranged on the work platform. Through limitation of the wave length and the pulse width of pulse laser, laser blackening and coloring of non-metal materials, especially plastic materials are achieved. The material surface laser blackening or coloring processing system is higher in reliability compared with a processing method with an ultrafast solid laser, can largely improve laser processing efficiency, and meets the requirement for industrial large-scale production.
Description
Technical field
The utility model relates to a kind of laser material treating apparatus, is specifically related to a kind of material surface be carried out to laser melanism or painted system of processing, especially a kind of nonmetallic materials is carried out to surface-treated device.
Background technology
Along with high power ultrafast laser is in the progress of the micro nano structure formation mechanism study of the material surface processing processing such as metal and material; one is processed directly at particularly metal material surface formation micro nano structure of material based on ultrashort laser pulse; thereby developed greatly in the world [A.Y.Vorobyev and Chunlei Guo in material surface generation melanism and painted technology; Colorizing metals with femtosecond laser pulses; APPLIED PHYSICS LETTERS 92; 041914,2008; Min Huang; Fuli Zhao; Ya Cheng, Ningsheng Xu, Zhizhan Xu; Large area uniform nanostructures fabricated by direct femtosecond laser ablation; 10 November 2008, Vol. 16, No. 23; OPTICS EXPRESS, 19354; A.Y. Vorobyev, Chunlei Guo, Direct creation of black silicon using femtosecond laser pulses, Applied Surface Science 257 (2011) 7291 – 7294].The appearance of the material surface micro-nano structures such as these metals directly causes the very big change of the material surface optical characteristics such as metal.High Power Femtosecond Laser pulse and metal surface interact, metal surface forms and periodically ripple (Ripple) structure of the laser wavelength of incidence equal number utmost point (or being less than laser wavelength of incidence), the periodic surface structure (NDCLDPS) that the laser covering also referred to as micro nano structure causes, in these periodicity ripples (or periodicity micro nano structure), exist the nanometer cavity (nano cavities) of a large amount of equally distributed nano-scales, with the nanometer of ball-type contact, give prominence to the micro-structural of nanostructureds such as (nano protuberance with spherical tip) and micron-scale, when electromagnetic wave irradiation was when these were processed by ultrafast laser the material surface such as metal that forms micro nano structure periodically, the structures such as these metal micro-nano cavitys form strong imprison to incident electromagnetic wave and absorb, thereby make these metal surfaces from electromagnetic wave strong reflector being become to electromagnetic strong absorber, it is sharply increased to from more than nineties percent from tens percent electromagnetic absorptivity, existing experimental study reports that electromagnetic frequency range is from ultraviolet nanometer more than 250 to visible ray to infrared 25000 nanometers, until Terahertz (300 microns), this makes to be become electromagnetic strong absorber (black matrix) by material surfaces such as altra-fast fs laser treatment later whole metal, this material is also referred to as " blacker-than-black " material (Super-black material), this metal surface treatment technology is also referred to as " metal melanism technology ", research is also found when after the parameters such as the polarization direction that changes incident ultrafast laser, incident angle, the light of the material surfaces such as the metal after laser treatment to specific wavelength is (as blue light, green glow, gold-tinted etc.) reflectivity enhancing, thereby the material surfaces such as metal present various colors (as indigo plant, green, gold-tinted etc.), this technology is also referred to as " metal coloring technology ".
The melanism of the material surface formation micro nano structures such as the metal of this employing ultrafast laser processing or colorize technology are compared tradition and are adopted paint (as black paint) to have following advantage to material surface dye technologies such as metals:
1, the material surface such as the metal of whole formation micro nano structure has a superior heat dispersion, and the heat that the material internals such as metal generate can distribute with high efficiency transmission to the external world; And adopt the technology such as paint owing to there being adhesive, will greatly reduce the heat dispersion on the surfaces such as metal;
2, the life-span of the material surface such as metal of whole formation micro nano structure is compared the technology such as paint and greatly extends.The material structures such as the material surface micro nano structures such as metal are parts for the material monolithic structures such as metal, these micro-nano metals are stable, and paint etc. exist the shortcoming of peeling off degeneration in time; And the performance under utmost point low temperature such as paint changes, color occurs greatly to change (as black becomes the silver gray that has some gloss).
3, to compare paint etc. lower to reflection of light rate for the material surface such as metal of whole formation micro nano structure;
4, the material surface such as metal of whole formation micro nano structure has larger repellency to water;
5, compare material surface melanism technology [" NASA Develops Super-Black Material That Absorbs Light Across Multiple Wavelength Bands. " the Last modified 11-08-2011. Accessed July 3 such as the metal of existing employing carbon nanotube technology surface coverage, 2012. http://www.nasa.gov/topics/technology/features/ super-black-material.html], it is more stable that the material melanism of the material surfaces such as this formation micro nano structure metal or colorize technology have performance, technology is more simple.
Owing to processing the material surface melanism such as metal or the colored dye technology that form micro-nano structure surface based on the material surface such as ultrafast laser metal, have above-mentioned advantage, this technology has potential a large amount of application in a lot of fields:
1, in war industry as adopted metal surface blackening to process aircraft and naval vessels absorbing radar wave is reached to stealthy function; The dyeing protection of weapon battlebus tank etc. etc.
2, industrial technology field is as replaced black to spray paint in auto industry, and automobile is rebuild; Black jewelry, highly sensitive photodetector, infrared and bioengineering device;
3, the black of civilian instrument and instrument or colorize protection etc., as high-end mobile phone melanism or painted.
4, the target aircraft in aerospace industry and detector are eliminated the interference of veiling glare to detection instrument as needed in the instruments such as telescope, improve resolution ratio, need extremely black surface to improve instrument decipherment distance simultaneously, need fabulous heat dispersion simultaneously.The development of this melanism technology will be opened a new application for space technology.
But, in prior art, the ultrafast laser that published laser melanism dye technology adopts is mainly 800 nano-solid ultrafast laser of low laser pulse repetition rates (KHz), and reliability, the long-time stability of this laser instrument are poor, is not suitable for heavy industrialization and uses; These technology adopt the form that point-like focuses on conventionally in addition, each point of processed material needs multiple laser pulses irradiate, process velocity is very slow, be not suitable for mass, suitability for industrialized production [Y. Vorobyev and Chunlei Guo, Colorizing Metals with Femtosecond Laser Pulses, Optics and Photonics News (OPN) December 2008,30]; The 3rd important reason is that a lot of materials are as very little to the laser absorption of 800 nano wave lengths in materials such as plastic material, organic material and glass, semiconductors, and therefore the laser melanism dye technology of existing employing 800 nano wave length solid ultrafast laser is painted very difficult to the melanism of the materials such as plastics, organic material and glass, semiconductor.
Still there is no at present high-repetition-rate, the ultrafast optical fiber laser of the high power report for material surface melanism or painted processing.Chinese invention patent application CN101368256A discloses a kind of method of utilizing ultra-short pulse laser to change metal surface color, and its optical maser wavelength of using is 200 nanometers to 1 micron.Therefore, this scheme can not solve the problem of the painted difficulty of melanism to materials such as plastics, organic material and glass, semiconductors.
Summary of the invention
Goal of the invention of the present utility model is to provide a kind of material surface laser melanism or painted system of processing, to realize surperficial melanism to materials such as pigment, organic material, glass, semiconductors or painted.
To achieve the above object of the invention, the technical solution adopted in the utility model is: a kind of material surface laser melanism or painted system of processing, comprise laser instrument, laser alignment system, focusing system, workbench and control system, described laser instrument is that wavelength is the pulse optical fiber of 1.8 microns to 2.2 microns, described laser alignment system, focusing system is arranged in a process arm, described process arm has the freedom of motion with respect to workbench with level and vertical direction, described focusing system focuses on laser beam by control system control and is placed on the material surface to be processed on workbench.
In technique scheme, it is the pulse control circuits of 10 femtoseconds to 900 nanoseconds that described pulse optical fiber has a control impuls width.
Described focusing system consists of high-rate laser scanning galvanometer and heart Laser Focusing field lens far away.
Or described focusing system is lens laser Focused Optical system.
Or described focusing system is reflective laser Focused Optical system.
In technique scheme, described control system is the painted processing of laser melanism and position control system, and described processing platform is the mobile accurate translation stage of the multidimensional (horizontal and vertical) of a fixing material to be processed.High-repetition-rate, high power, short pulse, 2 micron wave length optical fiber laser output short pulse pulse widths, high pulse repetition frequency, high pulse energy laser pulse bunch, the laser beam that these laser pulses form collimation through laser alignment system and expanded, the laser beam after collimator and extender forms the laser facula of vertical incidence, focusing on machined material through focusing system; The movement of the painted processing of laser material melanism precision micro-displacement travelling carriage vertical with position control system control or many micro-mobile apparatus arm locus and direction, and drive the process arm being formed by above-mentioned laser alignment mirror, focusing system on it to move freely on machined material surface of the work, realize the painted processing of laser material melanism.
The color that material surface produces can be black, grey, yellow, green, blueness, or other different color.
Because technique scheme is used, the utility model compared with prior art has following advantages:
1. the utility model swashs the restriction of light wavelength and pulse width by paired pulses, has realized nonmetallic materials, and especially the laser melanism of plastic material is painted.
2. the utility model adopts high-repetition-rate, high power, 2 microns of pulse optical fibers of short pulse as laser treatment light source, compare and adopt the processing method of ultrafast solid state laser to there is higher reliability, can greatly improve laser treatment efficiency, meet the requirement that large-scale industrialization is produced.
Accompanying drawing explanation
Fig. 1 is the system of processing principle schematic of the utility model embodiment mono-;
Fig. 2 is the system of processing principle schematic of the utility model embodiment bis-;
Fig. 3 is the system of processing principle schematic of the utility model embodiment tri-.
Wherein, 1, optical fiber laser; 2, laser alignment system; 3, the painted control system for processing of laser melanism; 4, high-rate laser scanning galvanometer; 5, heart Laser Focusing field lens far away; 6, the accurate translation stage of the horizontal and vertical movement of multidimensional; 7, melanism rapidoprint; 8, laser focusing lens optical system; 9, reflective laser Focused Optical system.
The specific embodiment
Below in conjunction with embodiment, the utility model is further described:
Embodiment mono-:
As shown in Figure 1, a kind of employing 2 micron optical fiber laser instruments the material surfaces such as metal form micro nano structure for material surface melanism and painted laser-processing system, comprise: a high-repetition-rate, high power, output pulse width from 10 femtoseconds to 900 nanosecond short pulse, 2 micron wave length optical fiber lasers 1, a laser alignment system 2, painted processing of laser melanism and position control system 3, a high-rate laser scanning galvanometer 4, a heart Laser Focusing field lens 5 far away, the accurate translation stage 6 of the horizontal and vertical movement of multidimensional and the melanism rapidoprint 7 of a fixing material to be processed.
Concrete annexation is as follows: 2 micron wave length optical fiber lasers 1 export from 10 femtoseconds to 999 nanosecond pulsewidth high repetition frequency laser pulse, these laser pulses form through laser alignment mirror 2 laser beam that collimated light beam has expanded, laser beam after collimator and extender is through a high-rate laser scanning galvanometer 4, and then on melanism rapidoprint 7, form vertical incidence through a heart Laser Focusing field lens 5 far away, the laser facula focusing on, the laser focusing on forms laser scanning district at a high speed on melanism rapidoprint 7 surfaces under the effect of high-rate laser scanning galvanometer 4 internal reflectors, the painted processing of laser material melanism and position control system 3 are controlled the movement of many micro-mobile platform 6 locus and direction, and drive the process arm being formed by above-mentioned laser alignment mirror 2, high-rate laser scanning galvanometer 4, heart laser scanning field lens 5 far away on it to be fixed at melanism rapidoprint 7 how micro-mobile platforms 6 move freely from the teeth outwards, realize the painted processing of laser material melanism.
Embodiment bis-:
As shown in Figure 2, a kind of adopt 2 microns of pulse optical fibers material surface form micro nano structure for metal or other material surface melanism and painted laser-processing system, comprise: a high-repetition-rate, high power, output pulse width from 10 femtoseconds to 900 nanosecond short pulse, 2 micron wave length optical fiber lasers 1, a laser alignment mirror 2, painted processing of laser melanism and position control system 3, a laser focusing lens optical system 8, the compositions such as the accurate translation stage 6 of the horizontal and vertical movement of multidimensional of a fixing material to be processed and melanism rapidoprint 7.Concrete annexation is as follows: concrete annexation is as follows: 2 micron wave length optical fiber lasers 1 export from 10 femtoseconds to 999 nanosecond pulsewidth high repetition frequency laser pulse, these laser pulses form through laser alignment mirror 2 laser beam that collimated light beam has expanded, laser beam after collimator and extender forms vertical incidence through a laser focusing lens optical system 8 on melanism rapidoprint 7 surfaces, the laser facula focusing on, the laser focusing on forms laser scanning district at a high speed on melanism rapidoprint 7 surfaces under the painted processing of laser melanism and position control system 3 control actions, the painted processing of laser material melanism and position control system 3 are controlled the movement of many micro-mobile platform locus and direction, and drive the multidimensional processing platform by above-mentioned laser alignment mirror 2, laser focusing lens optical system 8, the process arm forming and fixing melanism rapidoprint 7 on it to move freely on melanism rapidoprint 7 surfaces, realize the painted processing of laser material melanism.
Embodiment 3:
As shown in Figure 3, a kind of adopt 2 microns of pulse optical fibers material surface form micro nano structure for metal or other material surface melanism and painted laser-processing system, comprise: high-repetition-rate, high power, output pulse width from 10 femtoseconds to 900 nanosecond short pulse, 2 micron wave length optical fiber lasers 1, a laser alignment mirror 2, painted processing of laser material melanism and position control system 3, the compositions such as the accurate translation stage 5 of 9, one horizontal and vertical movements of multidimensional of a reflective laser Focused Optical system and melanism rapidoprint 7.
Concrete annexation is as follows: 2 micron wave length optical fiber lasers 1 export from 10 femtoseconds to 999 nanosecond pulsewidth high repetition frequency laser pulse, these laser pulses form through laser alignment mirror 2 laser beam that collimated light beam has expanded, laser beam after collimator and extender forms the laser facula of vertical incidence, focusing on melanism rapidoprint 7 surfaces through a reflective laser Focused Optical system 9, the laser of focusing forms laser scanning district at a high speed on melanism rapidoprint 7 surfaces under the painted processing of laser melanism and position control system control 3 effects; The movement that the painted processing of laser material melanism and position control system 3 are controlled multidimensional and moved processing platform position and direction, and drive the process arm being formed by above-mentioned laser alignment mirror 2, reflective laser Focused Optical system 9 on it and the multidimensional processing platform of fixing melanism rapidoprint 7 to move freely on melanism rapidoprint surface of the work, realize the painted processing of melanism of laser material.
In the above-described embodiments, the repetition rate of laser pulse be 1 KHz to 50 megahertzes, optical maser wavelength is 1.8 to 2.2 microns.
The described material for the treatment of the painted processing processing of melanism is metal material, Inorganic Non-metallic Materials, plastic material and semi-conducting material etc.
The color that described material surface produces is black, the color that grey is different with other.
The focal length of described Laser Focusing optical system (heart Laser Focusing field lens far away, lens laser Focused Optical system, reflective laser Focused Optical system) is from 2 millimeters to 500 millimeters.
Claims (5)
1. a material surface laser melanism or painted system of processing, comprise laser instrument, laser alignment system, focusing system, workbench and control system, it is characterized in that: described laser instrument is that wavelength is the pulse optical fiber of 1.8 microns to 2.2 microns, described laser alignment system, focusing system are arranged in a process arm, described process arm has the freedom of motion with respect to workbench with level and vertical direction, and described focusing system focuses on laser beam by control system control and is placed on the material surface to be processed on workbench.
2. material surface laser melanism according to claim 1 or painted system of processing, is characterized in that: it is the pulse control circuits of 10 femtoseconds to 900 nanoseconds that described pulse optical fiber has a control impuls width.
3. material surface laser melanism according to claim 1 or painted system of processing, is characterized in that: described focusing system consists of high-rate laser scanning galvanometer and heart Laser Focusing field lens far away.
4. material surface laser melanism according to claim 1 or painted system of processing, is characterized in that: described focusing system is lens laser Focused Optical system.
5. material surface laser melanism according to claim 1 or painted system of processing, is characterized in that: described focusing system is reflective laser Focused Optical system.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320715653.9U CN203557008U (en) | 2013-11-14 | 2013-11-14 | Material surface laser blackening or coloring processing system |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106925895A (en) * | 2017-03-16 | 2017-07-07 | 上海理工大学 | Based on the micro-machined glassy carbon electrode surface coarsening preparation method of ultra-short pulse laser |
| CN107252967A (en) * | 2017-07-26 | 2017-10-17 | 大连理工大学 | The method that ultra-short pulse laser surface texture is modified manufacture high-absorbility ferrous metal |
| CN108436285A (en) * | 2018-06-11 | 2018-08-24 | 佛山方科激光科技有限公司 | A kind of laser marking machine and its stainless steel density bullet marking method |
| CN109652786A (en) * | 2019-01-21 | 2019-04-19 | 南京航空航天大学 | A kind of color method and device based on metal material surface dye technology |
| CN109719823A (en) * | 2019-01-14 | 2019-05-07 | 张建新 | A kind of method of carving characters for realizing coking coloring on hard solid wood |
| CN109807470A (en) * | 2019-03-01 | 2019-05-28 | 海安南京大学高新技术研究院 | A method of 3D stereo-picture is generated in stainless steel surface using digital control laser |
| CN112496569A (en) * | 2020-11-25 | 2021-03-16 | 杭州银湖激光科技有限公司 | Processing method and device of ultrafast laser PCB material |
| CN112705862A (en) * | 2019-10-25 | 2021-04-27 | 大族激光科技产业集团股份有限公司 | Method and system for blackening transparent PC (personal computer) part based on ultrafast laser |
| CN113316496A (en) * | 2018-11-21 | 2021-08-27 | 胡夫技术有限公司 | Method for laser marking metal surfaces |
| CN115431639A (en) * | 2022-09-29 | 2022-12-06 | 镭神泰克科技(苏州)有限公司 | Laser marking device and method |
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2013
- 2013-11-14 CN CN201320715653.9U patent/CN203557008U/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106925895A (en) * | 2017-03-16 | 2017-07-07 | 上海理工大学 | Based on the micro-machined glassy carbon electrode surface coarsening preparation method of ultra-short pulse laser |
| CN107252967A (en) * | 2017-07-26 | 2017-10-17 | 大连理工大学 | The method that ultra-short pulse laser surface texture is modified manufacture high-absorbility ferrous metal |
| CN107252967B (en) * | 2017-07-26 | 2023-06-20 | 大连理工大学 | Method for manufacturing high-absorptivity ferrous metal by modifying ultrashort pulse laser surface structure |
| CN108436285A (en) * | 2018-06-11 | 2018-08-24 | 佛山方科激光科技有限公司 | A kind of laser marking machine and its stainless steel density bullet marking method |
| CN113316496A (en) * | 2018-11-21 | 2021-08-27 | 胡夫技术有限公司 | Method for laser marking metal surfaces |
| CN109719823A (en) * | 2019-01-14 | 2019-05-07 | 张建新 | A kind of method of carving characters for realizing coking coloring on hard solid wood |
| CN109652786A (en) * | 2019-01-21 | 2019-04-19 | 南京航空航天大学 | A kind of color method and device based on metal material surface dye technology |
| CN109807470A (en) * | 2019-03-01 | 2019-05-28 | 海安南京大学高新技术研究院 | A method of 3D stereo-picture is generated in stainless steel surface using digital control laser |
| CN112705862A (en) * | 2019-10-25 | 2021-04-27 | 大族激光科技产业集团股份有限公司 | Method and system for blackening transparent PC (personal computer) part based on ultrafast laser |
| CN112496569A (en) * | 2020-11-25 | 2021-03-16 | 杭州银湖激光科技有限公司 | Processing method and device of ultrafast laser PCB material |
| CN115431639A (en) * | 2022-09-29 | 2022-12-06 | 镭神泰克科技(苏州)有限公司 | Laser marking device and method |
| CN115431639B (en) * | 2022-09-29 | 2023-06-16 | 镭神泰克科技(苏州)有限公司 | Laser marking device and method |
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