CN201762443U - Double-laser coating device - Google Patents
Double-laser coating device Download PDFInfo
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- CN201762443U CN201762443U CN201020256393XU CN201020256393U CN201762443U CN 201762443 U CN201762443 U CN 201762443U CN 201020256393X U CN201020256393X U CN 201020256393XU CN 201020256393 U CN201020256393 U CN 201020256393U CN 201762443 U CN201762443 U CN 201762443U
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- transparent form
- laser
- transparent window
- speculum
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Abstract
The utility model relates to a double-laser coating device. The traditional equipment has low working efficiency. In the utility model, a spherical seal chamber is provided with two transparent windows which are a first transparent window and a second transparent window respectively; a light path which corresponds to the first transparent window is provided with a pulse laser device, a reflecting transmitting mirror and a focusing mirror from far to near in sequence; a first reflecting mirror is arranged right above the reflecting transmitting mirror; a second reflecting mirror is arranged right above the second transparent window; the first reflecting mirror and the second reflecting mirror are arranged on the same horizontal line; the first transparent window and the axis on which the second transparent window is arranged are vertical with each other; the vacuum pump of one side of the seal chamber is used for pumping gas in the chamber; a material rack and a target rack are arranged in the seal chamber; the material rack corresponds to laser emitted by the first transparent window; and the target rack corresponds to the laser emitted by the second transparent window. The utility model has simple structure and high work efficiency.
Description
Technical field
The utility model belongs to optical technical field, is specifically related to a kind of pair of laser coating unit.
Background technology
The implantation prosthese of metallic substance is mainly used in the position (as artificial four limbs and artificial joint) that human body needs antigravity load, and bioactive composite material, stupalith have its development prospect (as tooth, facial orthomorphia etc.) at the lighter position of load.Hydroxyapatite [Ca
10(PO
4)
6(OH)
2] (Hydroxyapatite be called for short HAp or HA) be the inanimate matter that constitutes skeleton, tooth, has excellent biological compatibility.In common synthetic biomaterial, add hydroxyapatite and can significantly improve material and stick and multiplication capacity, promote new osteogenesis osteoblastic.This specific character needing in the prosthese property the implanted operation of quick acting to be highly suitable for.Though hydroxyapatite has significant bio-compatibility, its ceramic performance, particularly low strength, low resistance property and fragility have restricted the hydroxyapatite application of material as a whole.And titanium alloy has remedied this defective just, utilizes its high strength and high tenacity characteristics, and such material has been widely used in orthopaedic surgery, even comprises the heart property implanted support, pacemaker and valve etc.But the sclerotin adhesion of titanium alloy material is very poor, the aseptic loosening phenomenon of joint prosthesis or other prostheses usually can occur.Titanium alloy hydroxyapatite coating layer material also possesses the good biological activity of hydroxyapatite in high strength that possesses metallic substance and high tenacity.
Titanium alloy hydroxyapatite coating layer method commonly used at present has ion beam sputtering spraying method, coating-sintering process, sol-gel method, electrochemical reaction method, plasma spraying method, laser sintered molten method, the laser excitation precipitator method etc. covered.Wherein the laser coatings method is causing concern day by day because it is controlled and simple operation and other advantages easily.Applicant's preposition applying for a patent " the new pattern laser coating process of hydroxyapatite powder is carried out on a kind of titanium-based metal surface " (application for a patent for invention CN200810121880.2) carried out coating by be laid in the in advance hydroxyapatite of titanium alloy surface of near-infrared laser direct irradiation.Technology is simple though this method has, the good characteristics of ratio controllability of coat-thickness and hydroxyapatite, if but it is too thick to exist pre-coating uniformity coefficient to be difficult to the pre-coating of control in actually operating, defective such as hydroxyapatite and body material bonding strength be not enough after the laser scanning.
Summary of the invention
The purpose of this utility model is at the deficiencies in the prior art, and a kind of two laser coating units that are used for coating for metal surfaces are provided.
The utility model comprises pulsed laser, reflection and transmission mirror, first speculum, second speculum, condensing lens, enclosed housing, vacuum pump, first transparent form and second transparent form.
Have two transparent forms on the spheric enclosed housing, be respectively first transparent form and second transparent form, be disposed with pulsed laser, reflection and transmission mirror and condensing lens from far near on the pairing light path of first transparent form, be provided with first speculum directly over the reflection and transmission mirror, be provided with second speculum directly over second transparent form, first speculum and second speculum are on same sea line.The axis at first transparent form and the second transparent form place is vertical mutually, the vacuum pump of enclosed housing one side is used for the gas in the extracting cavity, be provided with material frame and target frame in the enclosed housing, the material frame is with corresponding through the first transparent form emitting laser, and the target frame is with corresponding through the second transparent form emitting laser.
The utility model adopts two laser structures, guarantees that in melting materials capable the coating work of target object is carried out synchronously, has improved working efficiency.The coating space and the low pressure environment of sealing can make that again coating is even.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1, a kind of pair of laser coating unit comprises pulsed laser 1, reflection and transmission mirror 11, first speculum 2, second speculum 3, condensing lens 10, enclosed housing 8, vacuum pump 5, first transparent form 9 and second transparent form 4.The laser that laser apparatus 1 sends is Nd:YAG laser or ArF (wavelength 193nm) excimer pulsed laser.Laser source in the utility model also can be selected two for use, might not need to isolate two-way from same laser source.
Have two transparent forms on the spherical enclosed housing 8, be respectively first transparent form 9 and second transparent form 4, be disposed with condensing lens 10, reflection and transmission mirror 11 and pulsed laser 1 on first transparent form, the 9 pairing light paths, be provided with first speculum 2 directly over the reflection and transmission mirror 11, it is vertical mutually with the axis at second transparent form, 4 places to be provided with second speculum, 3, the first transparent forms 9 directly over second transparent form 4.Enclosed housing 8 edgewise vacuum pumps 5 are used for the gas in the extracting cavity, are placed with material frame 6 and target frame 7 in the enclosed housing 8, and material frame 6 is with corresponding through first transparent form, 9 emitting lasers, and the target frame is with corresponding through second transparent form, 4 emitting lasers.
It is as follows to utilize said apparatus to carry out the coating method of hydroxylapatite material on metal surface:
At first hydroxyapatite material and matrix titanium metal material are positioned over respectively on material frame and the target frame, material frame and target frame opposing parallel and with the laser optical path of level angle at 45;
Then annular seal space is evacuated (it is following that air pressure is evacuated to 1Pa), charges into water vapor or water vapor and argon gas mixture then, and keep this pressure, whole coating procedure carries out under this pressure;
Pulsed laser sends laser, and laser beam projects the Transflective mirror, and wherein the light beam after the transmission enters enclosed housing by condensing lens, first transparent form successively, projects the hydroxyapatite material that becomes 45 degree with light path.
At Transflective Jing Chu laser light reflected taking place, projects on the matrix titanium metal materials that become 45 degree with light path through second transparent form from the enclosed housing behind first speculum, second speculum.
The pulse laser that focuses on excites the hydroxyapatite material in the enclosed housing, the gas that charges in the hydroapatite particles that excites generation and the cavity mixes and forms the plasma mixture, be full of whole chamber, the part of hydroxyl apatite particle is adsorbed onto on the matrix titanium metal material, unfocused pulse laser heats the matrix titanium metal material in the enclosed housing, make the temperature of facular area on the matrix titanium metal material remain on (promptly more than matrix titanium metal material fusing point) more than 400 ℃, thereby finish the coating of hydroxyapatite material in this facular area.
Adjust the facular area position of matrix titanium metal material again, repetitive operation forms the thick hydroxyapatite coating layer of 1～10 μ m like this on the matrix titanium metal material till the entire exterior surface of matrix titanium metal material is all finished the coating of hydroxyapatite material.
Claims (1)
1. a two laser coating unit comprises pulsed laser, reflection and transmission mirror, first speculum, second speculum, condensing lens, enclosed housing, vacuum pump, first transparent form and second transparent form, it is characterized in that:
Have two transparent forms on the spheric enclosed housing, be respectively first transparent form and second transparent form, be disposed with pulsed laser, reflection and transmission mirror and condensing lens from far near on the pairing light path of first transparent form; Be provided with first speculum directly over the reflection and transmission mirror, be provided with second speculum directly over second transparent form, first speculum and second speculum are on same sea line; The axis at first transparent form and the second transparent form place is vertical mutually, the vacuum pump of enclosed housing one side is used for the gas in the extracting cavity, be provided with material frame and target frame in the enclosed housing, the material frame is with corresponding through the first transparent form emitting laser, and the target frame is with corresponding through the second transparent form emitting laser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020256393XU CN201762443U (en) | 2010-07-09 | 2010-07-09 | Double-laser coating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020256393XU CN201762443U (en) | 2010-07-09 | 2010-07-09 | Double-laser coating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201762443U true CN201762443U (en) | 2011-03-16 |
Family
ID=43715056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020256393XU Expired - Fee Related CN201762443U (en) | 2010-07-09 | 2010-07-09 | Double-laser coating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201762443U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102251078A (en) * | 2011-05-27 | 2011-11-23 | 西安交通大学 | Laser mixed high field device |
-
2010
- 2010-07-09 CN CN201020256393XU patent/CN201762443U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102251078A (en) * | 2011-05-27 | 2011-11-23 | 西安交通大学 | Laser mixed high field device |
| CN102251078B (en) * | 2011-05-27 | 2012-11-28 | 西安交通大学 | Laser mixed high field device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110316 Termination date: 20130709 |