CN87207445U - Gas laser tube sealing connector - Google Patents
Gas laser tube sealing connector Download PDFInfo
- Publication number
- CN87207445U CN87207445U CN 87207445 CN87207445U CN87207445U CN 87207445 U CN87207445 U CN 87207445U CN 87207445 CN87207445 CN 87207445 CN 87207445 U CN87207445 U CN 87207445U CN 87207445 U CN87207445 U CN 87207445U
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- China
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- laser tube
- diaphragm
- millimeters
- pipe
- sealing joint
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- 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.)
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Abstract
The utility model provides a new structural gas laser tube sealing connector, which has compact and reasonable structure and simple fetching material. The gas laser tube sealing connector simplifies the manufacture technology of the gas laser sealing connector sealing connecting with the diaphragm, realizes primary high-temperature melting sealing, in particular can be applied to the technological equipment existing currently in the inland glass instrument manufacture business, and produces the gas laser tube with high quality, long lifetime and low cost.
Description
The utility model relates to a kind of Gas LASER Tube sealing joint.
Common Gas LASER Tube is a kind of vacuum unit that is filled with He-Ne gas of making body with glass tube.Because the needs of laser-tube cavity starting of oscillation, requirement is positioned at the sealing joint at laser tube two ends, i.e. sealing-in to diaphragm and sealing joint must seal air tight, guarantee the perpendicularity of diaphragm minute surface and laser tube body, to realize depositing and this important techniques quality requirement in useful life of Gas LASER Tube, for reaching this purpose, it is reported and generally adopt following sealing joint at present both at home and abroad:
1. epoxy resin sealing joint.Adopt epoxy resin sealing-in laser tube sealing joint and diaphragm easier, but, cause laser tube generation chronic leakage, have a strong impact on laser tube life-span and quality because of this binding agent is subject to that temperature contrast changes and the influence of the moisture absorption produces agingly.This laser tube was only promptly scrapped for using in the laboratory in 1 or two years.
2. can cut down the material sealing joint.Adopt known iron nickel cobalt ternary-alloy material can cut down material, with the laser tube body sealing by fusing of making of coefficient of expansion analog material, again with the sealing-in of transitional glass material realization with diaphragm, cut down the perpendicularity that header structure guarantees diaphragm minute surface and laser tube body by adjustable, so need solution can cut down fine finishining, the heat treatment of header structure, can cut down material, transitional material and corresponding production equipment.
3. frit seal head.Adopt transitional glass material repeatedly to realize to the sealing joint diaphragm of laser tube and the sealing-in of body, its last transitional material is frit seal, with the perpendicularity of grinding sealing joint assurance diaphragm and laser tube body, this just need provide a series of transitional glass material and glass powder with low melting point to mix a whole set of clamping apparatus as seal, sealing materials And, the manufacturing process flow complexity.
The purpose of this utility model provides the new construction of the Totally-enclosed-type of a kind of Gas LASER Tube sealing joint and the direct sealing-in of diaphragm, adopt present glass apparatus manufacturing industry technique known, realize the high temperature sealing by fusing of laser tube sealing joint to diaphragm, the advantage that made Gas LASER Tube has is air tight, the life-span is long, the selection of material advantages of simple, do not need a series of transitional glass, the easy cost of clamping apparatus and technology is lower, the efficient height.
Basic design of the present utility model is according to known glass sealing theory and technology, and when glass and glass welding, but the coefficient of expansion difference allowed band between them is 5～7 * 10
-7, so the utility model is taked following new design: 1. the glass material that adopts the coefficient of expansion with the glass material of Gas LASER Tube body to be complementary, make laser tube sealing joint and diaphragm, and diaphragm can carry out vacuum coating processing earlier; 2. change the shape and the structure of the Gas LASER Tube sealing joint of continuing to use.Because the sealing-in of Gas LASER Tube sealing joint and diaphragm needs heating, but no matter be high temperature or low-temperature heat, the end face of sealing joint all can be heated and be out of shape, and the perpendicularity between diaphragm minute surface and the laser tube body is departed from, once the sealing joint cooling then can produce the explosion phenomenon.In order to ensure perpendicularity, avoid the explosion phenomenon, the utility model is made the structure of laser tube sealing joint
The circular mouth of pipe of shape, it is to be socketed to form by two adjacent glass tubes, this
The circular mouth of pipe of shape has two annulus and a spill annular groove, the end face of the annulus glass mouth of pipe is as the support and the datum level of diaphragm in one of them, the end face of another outer toroid glass mouth of pipe contacts with the diaphragm outer circular edge and accepts the high temperature sealing by fusing, and heat-blocking action is played in the space that the spill annular groove between two annulus glass tubes forms.When the outer toroid glass mouth of pipe during at the high temperature sealing by fusing, the datum level and the diaphragm minute surface of the interior annulus glass mouth of pipe are all unaffected, this is because the space of spill annular groove is heat insulation, the end face of the interior annulus glass mouth of pipe is heated low, as supporting and benchmark, can not melt distortion simultaneously, so just keep perpendicularity between diaphragm minute surface and the laser tube body basically, therefore realize one time the high temperature sealing by fusing with the outer toroid glass mouth of pipe.
Fig. 1 is the known formula laser tube sealing joint structure of cutting down, and its critical piece is a set screw 1, can cut down sealing joint crossette 2, diaphragm 4, and diaphragm minute surface 5 can cut down head process shoulder thin-walled 3, can cut down sealing joint and diaphragm sealing-in place 6, laser tube body 7.From shown in Fig. 1 as can be known, after can cutting down sealing joint and diaphragm sealing-in 6, its perpendicularity departs from, can adopt set screw 1 to adjust, because at the head process cut down shoulder thin-walled 3 places that can cut down between the sealing joint crossette, than near the thickness of pipe wall it, easily deformation after heating reaches and corrects the purpose that perpendicularity departs from.
Fig. 2 is a laser tube sealing joint new construction provided by the utility model, and its critical piece is interior annulus glass tube 1, outer toroid glass tube 2, spill annular groove 3, the sealing-in pin 4 of laser tube sealing joint, the sealing-in pin 5 of laser tube body, diaphragm 6, diaphragm minute surface 7.The sealing joint structure of laser tube two ends provided by the utility model is identical, and diagrammatic sketch omits.
Embodiment of the present utility model is as follows:
1. be 30～32 * 10 with the coefficient of expansion
-7The high temperature borosilicate glass to make external diameter be 20 millimeters, wall thickness is 1.5 millimeters, the glass tube that pipe range is 15 millimeters, i.e. the cylindrical glass tube 2 of laser tube sealing joint and to make internal diameter be 12 millimeters, wall thickness is 1.5 millimeters, the glass tube that pipe range is 30 millimeters, promptly the interior annulus glass tube 1 of laser tube sealing joint is processed on gas lamp flame, with inside and outside annulus glass tube 1 and 2, be fired into
The circular glass mouth of pipe of shape as shown in Figure 2.
2. making external diameter with aforementioned high temperature borosilicate glass is 20 millimeters, and thickness is the diaphragm substrate of 1.5 millimeter, uses known vacuum coating technology plated film then, makes the diaphragm 6 of laser tube, as shown in Figure 2.
3. with the sealing-in pin 4 of laser tube sealing joint and the sealing-in pin 5 of laser tube body, high temperature is fused into state shown in Figure 2, finishes the laser tube blank and makes as shown in Figure 3.
4. laser tube blank and parallel light tube are placed same horizontal center, be fixed on the workbench, regulating parallel light tube makes in the laser tube body before the capillary rear end all by the cross difference line quartering of parallel light tube, take off the laser tube blank then, grind the circular glass tube mouth of pipe (i.e. two annulus) end face with diamond dust and so on, after diaphragm 6 is placed on the end face through grinding, reach the cross difference line in the parallel light tube and the reflection cross difference of diaphragm minute surface 7 and coincide, so just guaranteed the perpendicularity between laser tube body and the diaphragm.
5. laser tube body blank is vertically fixed on the vertical lathe, diaphragm 6 is placed on the end face of the circular glass tube mouth of pipe through grinding calibration, add on the outerplanar that quartzy packing ring is pressed on diaphragm 6 with iron ball, open lathe then, the headstock main shaft is with the speed rotation of 18～20 rev/mins of rotating speeds, with the about temperature of tip-like gas burner head about 1000 ℃, aim at the outer circular edge of diaphragm 6 and the seam crossing of the circular glass tube mouth of pipe, the circumference of the outer circumferential edge of flame and diaphragm is oriented in a tangential direction, a heat little position of sintering seam crossing ragged edge is till complete sealing by fusing jail.
So far, laser tube sealing joint provided by the utility model completes.
The Gas LASER Tube that adopts new construction laser tube sealing joint provided by the utility model to make, through special equipment test and expert appraisal, it is better to compare effect with present similar products at home and abroad, and its basic mechanical design feature can be as follows referring to contrast table:
New construction pipe important technological parameters and similar products at home and abroad are relatively
The Gas LASER Tube that adopts new construction laser tube sealing joint provided by the utility model to make, compact conformation is reasonable, simplified the manufacture craft of Gas LASER Tube sealing joint with the diaphragm sealing-in, drawn material is simple, particularly can use the existing technical equipment of present domestic glass apparatus manufacturing industry, producing the quality high life grows up to this low Gas LASER Tube, has higher economic results in society.
Claims (5)
1, a kind of Gas LASER Tube sealing joint comprises the circular mouth of pipe, diaphragm and laser tube body, it is characterized in that being positioned at the laser tube sealing joint that the same laser tube body of laser tube two ends connects mutually, is made by two adjacent glass pipe boxes to be
The promptly interior annulus of the circular mouth of pipe of shape, outer toroid and the toroidal cavity that is concave shaped space in the middle of interior annulus and outer toroid are formed, the end face of the outer toroid of the circular mouth of pipe is integral with the diaphragm sealing by fusing, and the other end that the circular mouth of pipe of sealing joint is relative is integral with laser tube body sealing by fusing.
2,, it is characterized in that the circular mouth of pipe is that the employing coefficient of expansion is 30～32 * 10 by the described laser tube sealing joint of claim 1
-7The glass tube made of high temperature resistant borosilicate glass material, the optimum size of its outer toroid glass tube: external diameter is 20 millimeters, wall thickness is 1.5 millimeters, the optimum size of interior annulus glass tube: external diameter is 12 millimeters, wall thickness is 1.5 millimeters, and pipe range is 30 millimeters, and material that diaphragm is used and the used material of the circular mouth of pipe are complementary, the optimum size of diaphragm: external diameter is 20 millimeters, and thickness is 1.5 millimeters.
3, by the described laser tube sealing joint of claim 1, it is characterized in that the toroidal cavity between interior annulus and outer toroid, its optimum size: width is 1.5 millimeters, when the degree of depth is 2 millimeters, can form the space of best effect of heat insulation.
4, by the described laser tube sealing joint of claim 1, the end face of annulus is the benchmark ， And of the support of diaphragm and perpendicularity and matches with the contacted face of diaphragm in it is characterized in that.
5, by the described laser tube sealing joint of claim 1, the end face that it is characterized in that outer toroid is with diaphragm outer circular edge high temperature sealing by fusing, and it is coaxial that diaphragm minute surface and laser tube body keep.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87207445 CN87207445U (en) | 1987-09-01 | 1987-09-01 | Gas laser tube sealing connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87207445 CN87207445U (en) | 1987-09-01 | 1987-09-01 | Gas laser tube sealing connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN87207445U true CN87207445U (en) | 1988-04-27 |
Family
ID=4822884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87207445 Withdrawn CN87207445U (en) | 1987-09-01 | 1987-09-01 | Gas laser tube sealing connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN87207445U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104868348A (en) * | 2015-05-11 | 2015-08-26 | 北京镭海激光科技有限公司 | Carbon dioxide laser tube with new structure |
| WO2015192269A1 (en) * | 2014-06-18 | 2015-12-23 | 徐海军 | Carbon dioxide gas laser tube and preparation method therefor |
-
1987
- 1987-09-01 CN CN 87207445 patent/CN87207445U/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015192269A1 (en) * | 2014-06-18 | 2015-12-23 | 徐海军 | Carbon dioxide gas laser tube and preparation method therefor |
| CN104868348A (en) * | 2015-05-11 | 2015-08-26 | 北京镭海激光科技有限公司 | Carbon dioxide laser tube with new structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| RN01 | Renewal of patent term | ||
| 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 |