CN102101360B - Method for coating by laser - Google Patents
Method for coating by laser Download PDFInfo
- Publication number
- CN102101360B CN102101360B CN 201010603627 CN201010603627A CN102101360B CN 102101360 B CN102101360 B CN 102101360B CN 201010603627 CN201010603627 CN 201010603627 CN 201010603627 A CN201010603627 A CN 201010603627A CN 102101360 B CN102101360 B CN 102101360B
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- laser
- cleaning
- welding
- light beam
- substrate
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- Lining Or Joining Of Plastics Or The Like (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention provides a method for coating by laser, which belongs to the field of laser technology application. The method comprises the following steps of: performing laser washing on the surface of a substrate to be coated by using a linear laser light spot, and thermally melting the surface, contacting the surface of the substrate, of a laminating film by using a linear laser light spot simultaneously; compressing the laminating film on the washed surface of the substrate by using a pressure wheel; and welding the laminating film and the surface of the substrate after the laminating film is condensed. The laminating film is made of thermoplastic or resin; and the substrate is made of metal, ceramic, a transistor chip and the like. The method is applicable to coating various thermoplastics or resin layers on the surfaces of various substrates, and has the advantages of simplicity, high bonding strength and high applicability.
Description
Technical field
A kind of method of laser coating belongs to the laser technology application, is particularly useful for various thermoplastic plastic layers of plated surface such as metal, pottery and timber.
Background technology
Along with the development of laser technology, laser plastic welding has been widely used in the fields such as automobile, medical science, electronics.Present laser plastic welding is mainly the welding between plastics and plastics, its characteristics are must satisfy in two layers of plastic: one deck is to laser beam transmission, one deck produces laser and absorbs, and laser beam is beaten on the interface of two layers of plastic from the one side incident of transmission plastics, being absorbed plastics absorbs, absorb the frosting temperature and raise and hot melt occurs, in this process, plastics are applied certain pressure, then cooling, two layers of plastic just welds together, and this kind welding manner is also referred to as the transmission-type welding manner.
Laser plastic welding is applied to the welding of plastics and the materials such as metal, pottery and timber, can expands the application of laser plastic welding.Germany fraunhofer research institute at cavernous coarse ceramic surface, is used for the research of biomedical aspect with Plastic Welding.Germany HaoMai Co., Ltd on timber, is used for the edge sealing manufacturing of furniture with Plastic Welding.Domestic do not have a relevant application study report.
Before welding, substrate surface first cleans and can weld.General cleaning way as Ultrasonic Cleaning, needs to add corresponding equipment, also needs simultaneously independent matting, and is just inadvisable from cost and technique itself.Simultaneously, common cleaning way is all to clean for the whole surface of substrate, be separated by a very long time again to the Plastic Welding of reality after cleaning, substrate surface probably covers some dusts again during this period, and ensuing Plastic Welding is had a negative impact.
Summary of the invention
Just substrate surface generally needs certain interval of time can carry out plated film after cleaning, and may again cover some dusts therebetween, plated film is had a negative impact, in order to address the above problem a kind of method that the invention provides laser coating.
A kind of method of laser coating, the method is realized by following steps:
Step 1: adopt spectroscope to be divided into a linear beam and clean light beam and welding light beam;
Step 2: utilize the described cleaning light beam of step 1 by cleaning total reflective mirror, substrate surface to be plated to be cleaned;
Step 3: hot melt is carried out on the contacted overlay film of the substrate surface surface after utilizing the described welding light beam of step 1 by cleaning in welding total reflective mirror pair and step 2;
Step 4: the rolling that utilizes pressure wheel is pressed on substrate surface after cleaning with the overlay film of hot melt in step 3;
Step 5: the described overlay film of step 4 is carried out condensation, complete laser coating.
Beneficial effect of the present invention:
1, can realize Plastic Welding at various substrate surfaces, as metal, pottery and timber etc., can produce a lot of new applications, expand the application of Plastic Welding;
2, before Plastic Welding, employing laser cleaning surface to be welded, effectively removed the impact of the dirt welding qualities such as dust, grease, carry out immediately the plastics weldering after cleaning, not can as method in, may just can carry out Plastic Welding and cause face of weld again to deposit pollution and the impact of effects on surface welding quality every a very long time after cleaning, so this kind method can make the bond strength of plastics and substrate surface improve;
3, laser cleaning and weldedization to the independent cleaning process of face of weld, make the whole course of work more smooth before no longer needing to weld, and are convenient to large-scale production, pipelining, and also the object of laser cleaning is more extensive;
4, adopt laser cleaning, do not need extra cleaning equipment.Cleaning the laser beam of use and the laser beam of welding use exports from a cover semiconductor laser, the Line beam length of beating at working surface also all equates with the plastic tape width that welds, therefore the beam shaping system in the middle of only needs a cover to get final product, this keeps the uniformity on length highly beneficial to two light beams, has also facilitated adjusting simultaneously; In this kind method, the Route maintenance that cleans light beam, welding light beam and plastic tape is consistent, cleans light beam and only the substrate surface position of needs welding is cleaned, and the position of not welding is not cleaned, so the utilization rate of laser energy is very high.
Description of drawings
Fig. 1 is the overall schematic of laser coating method;
Fig. 2 is the schematic diagram of laser facula on working surface and plastic tape in the laser coating method;
Fig. 3 is the laser plastic welding schematic diagram that the laser coating method is applied in large profile shaft surface;
In figure: the 1-line-like laser beam flux, the 2-pressure wheel, the 3-plastic tape, the 4-spectroscope, 5-cleans total reflective mirror, and 6-welds total reflective mirror, and 7-cleans light beam, and 8-welds light beam.
The specific embodiment
By reference to the accompanying drawings the present invention is illustrated:
As Figure 1-3, the line-like laser beam flux 1 that semiconductor laser produces, through after spectroscope 4, be divided into two, clean light beam 7 through cleaning total reflective mirror 5 reflections, beat on substrate surface substrate surface is cleaned, another bundle welding light beam 8 is through 6 reflections of welding total reflective mirror, beat on plastic tape 3 surfaces, this surface is the face with the substrate surface solder bond.Hot melt occurs in the plastic tape surface under laser action, then under the effect of pressure wheel 2, weld together with substrate surface.
Linear beam 1 is produced by semiconductor laser, and its wave-length coverage is 700um-1000um; The power density scope of the two bunch shaped laser spots that produce through spectroscope is 10
2W/cm
2-10
4W/cm
2
Overlay film 3, its material are thermoplastic or resin, as: nylon, polyethylene, polypropylene, styrene/acrylonitrile copolymer resins, polystyrene, acrylonitrile-butadiene-styrene (ABS), polymethyl methacrylate, Merlon etc.; Base material is metal, pottery, timber or crystal substrates etc.
Claims (4)
1. the method for a laser coating, the method is realized by following step:
Step 1: adopt spectroscope (4) to be divided into a linear beam (1) and clean light beam (7) and welding light beam (8);
Step 2: utilize the described cleaning light beam of step 1 (7) by cleaning total reflective mirror (5), substrate surface to be plated to be carried out laser cleaning;
Step 3: utilize the described welding light beam of step 1 (8) by welding total reflective mirror (6) to step 2 in the contacted overlay film of substrate surface (3) surface after cleaning carry out hot melt;
Step 4: the rolling that utilizes pressure wheel (2) is pressed on substrate surface after cleaning with the overlay film (3) of hot melt in step 3;
Step 5: the described overlay film of step 4 (3) is carried out condensation, complete laser coating.
2. a kind of method of laser coating according to claim 1, is characterized in that, described linear beam (1) is produced by semiconductor laser, and its wave-length coverage is 700um-1000um; The power density scope of the two bunch shaped laser spots that produce through spectroscope is 102W/cm
2-104W/cm
2
3. a kind of method of laser coating according to claim 1, is characterized in that, the material of described overlay film (3) is thermoplastic or resin.
4. the method for a kind of laser coating according to claim 1, is characterized in that, described base material is metal, pottery, timber or crystal substrates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010603627 CN102101360B (en) | 2010-12-24 | 2010-12-24 | Method for coating by laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010603627 CN102101360B (en) | 2010-12-24 | 2010-12-24 | Method for coating by laser |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102101360A CN102101360A (en) | 2011-06-22 |
| CN102101360B true CN102101360B (en) | 2013-06-19 |
Family
ID=44154509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010603627 Expired - Fee Related CN102101360B (en) | 2010-12-24 | 2010-12-24 | Method for coating by laser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102101360B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110450507B (en) * | 2019-08-12 | 2020-10-30 | 苏州长光华芯光电技术有限公司 | Laser coating method and device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1048339A (en) * | 1989-01-17 | 1991-01-09 | 技术开发地区事务所 | Utilization can be launched the method and the device on the pulse laser cleaning material surface of short pulse |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0699502A (en) * | 1992-05-21 | 1994-04-12 | Nippon Steel Corp | Production of surface-treated steel sheet with resin film lamination |
-
2010
- 2010-12-24 CN CN 201010603627 patent/CN102101360B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1048339A (en) * | 1989-01-17 | 1991-01-09 | 技术开发地区事务所 | Utilization can be launched the method and the device on the pulse laser cleaning material surface of short pulse |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102101360A (en) | 2011-06-22 |
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Effective date of registration: 20160918 Address after: 215000 No. 8 Jinfeng Road, Suzhou hi tech Development Zone, Jiangsu Patentee after: Suzhou Everbright Photonics Technology Co., Ltd. Address before: 130033 southeast Lake Road, Jilin, Changchun, No. 3888 Patentee before: Changchun Inst. of Optics and Fine Mechanics and Physics, Chinese Academy of Sci |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130619 Termination date: 20171224 |