CN1013899B - Orientation for crystal face of natural diamond - Google Patents
Orientation for crystal face of natural diamondInfo
- Publication number
- CN1013899B CN1013899B CN 87102712 CN87102712A CN1013899B CN 1013899 B CN1013899 B CN 1013899B CN 87102712 CN87102712 CN 87102712 CN 87102712 A CN87102712 A CN 87102712A CN 1013899 B CN1013899 B CN 1013899B
- Authority
- CN
- China
- Prior art keywords
- diamond
- veil
- natural diamond
- orientation
- laser beam
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Images
Landscapes
- Analysing Materials By The Use Of Radiation (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
The present invention uses laser as a light source to determine the lattice of a crystal plane of natural diamond crystal. Therefore, the crystal plane net of the diamond can be found out. The present invention has the characteristics of less investment, no harm to human body, accuracy, convenience, etc.
Description
The invention belongs to the diamond machined field.
Now in the orientation method of natural diamond crystal, the X-ray diffraction method has apparatus expensive (direction finder 25.000 yuan), uses extremely inconvenience, and human body is had infringement, though the visual orientation method is easy to use, precision is relatively poor.Therefore press for a kind of small investment, precision height, easy to use, harmless diamond crystal orientation method.
The natural diamond crystalline anisotropy, thereby in design, manufacturing and the use of diamond tool, must be according to its crystal orientation, choose reasonable, make diamond machined easy and durable, purpose of the present invention just is to use a kind of new method-laser, and natural diamond crystal structure veil is determined work.
The ultimate principle of laser diamond crystal orientation method is: when laser beam irradiation in diamond crystal when surface because there is small intercrystalline corrosion in diamond surface, make the coherence preferably laser beam produce at diamond surface and interfere, anti-diffraction phenomena takes place.Its diffraction spot can show on screen.When the angle of each crystallization veil of laser beam and natural diamond crystal not simultaneously, also there is tangible difference in its anti-diffraction pattern, according to this difference, can record the angle between each veil of laser beam and adamas, thereby realize the crystallization veil problem identificatioin of natural diamond crystal.It is adamantine crystal orientation.Its principle is as figure (1), laser tube a gives off laser beam, by a screen b that the center is porose, be radiated on the diamond crystal C surface, constantly adjust adamantine position, can on screen, obtain different anti-diffraction patterns, when the pattern on the screen with obtained the standard pattern in advance when consistent, then laser beam and adamantine a certain veil have definite angle, thereby can determine the locus of required veil.
Embodiment:
Three main veils of natural diamond (100), (110), determining (111), when laser beam and (111) when veil is vertical, anti-diffraction pattern such as Fig. 2 on screen, when with (110) when face is vertical, its figure such as Fig. 3, when with (100) when face is vertical, its figure such as Fig. 4, in view of the above, directed problem that can more convenient each veil of solution.
Claims (1)
1, a kind of orientation method of natural diamond crystal structure veil, adopt laser tube (a) to give off laser beam, screen (b) by a center pit, be radiated on diamond crystal (c) surface, it is characterized in that utilizing the small intercrystalline corrosion of diamond surface existence, laser beam is produced at diamond surface interfere, anti-diffraction phenomena takes place, the reflective device that observation obtains on screen, thereby the locus of definite required diamond crystalline veil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87102712 CN1013899B (en) | 1987-04-09 | 1987-04-09 | Orientation for crystal face of natural diamond |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87102712 CN1013899B (en) | 1987-04-09 | 1987-04-09 | Orientation for crystal face of natural diamond |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN87102712A CN87102712A (en) | 1988-04-06 |
| CN1013899B true CN1013899B (en) | 1991-09-11 |
Family
ID=4814078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87102712 Expired CN1013899B (en) | 1987-04-09 | 1987-04-09 | Orientation for crystal face of natural diamond |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1013899B (en) |
-
1987
- 1987-04-09 CN CN 87102712 patent/CN1013899B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CN87102712A (en) | 1988-04-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |