CN105304432B - Device for grinding graphite cathode surface of electron beam diode - Google Patents
Device for grinding graphite cathode surface of electron beam diode Download PDFInfo
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- CN105304432B CN105304432B CN201510784094.0A CN201510784094A CN105304432B CN 105304432 B CN105304432 B CN 105304432B CN 201510784094 A CN201510784094 A CN 201510784094A CN 105304432 B CN105304432 B CN 105304432B
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- plate
- milling
- graphite cathode
- grinding
- negative electrode
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Abstract
The invention belongs to the technical field of pulse power, and particularly relates to a grinding device for a consistency treatment of graphite cathode surface roughness of an electron beam diode. The grinding device comprises a grinding platform, grinding plates, a motor, positioning plates, positioning wheels and cathode placement cylinders, wherein the grinding plates are located in the middle part of the grinding platform; an abrasive paper is put on each grinding plate; each cathode placement cylinder is put on each abrasive paper; the motor is located in the grinding platform below the grinding plates and is used for driving the grinding plates to rotate; one end of each positioning plate is fixed on the grinding platform; the other end of each positioning plate is suspended above each grinding plate; the suspended end of each positioning plate is provided with a concave arc-shaped end surface; the positioning wheels capable of freely rotating are arranged at two endpoints of the end surfaces and are used for limiting the motion ranges of the cathode placement cylinders; the cathode placement cylinders are in a hollow cylindrical structure; and the inside of each cathode placement cylinder is used for putting a graphite cathode specimen. According to the device, the technical problem of uncontrollable roughness of the graphite cathode surface in manual grinding and wiping is solved.
Description
Technical field
The invention belongs to technical field of pulse power, and in particular to one kind is thick for electron beam diode graphite cathode surface
The milling device of rugosity consistency treatment.
Background technology
In technical field of pulse power, diode is to obtain high power pulse charged particle beam, gamma-rays, X-ray and high power
The critical component of microwave, intense pulse laser etc., its effect is the kinetic energy that pulse electromagnetic energy is converted into electron beam.Diode junction
Structure is mainly constituted and is made up of negative electrode, anode and insulating supporting structure.In the strong current pulsed relativistic electron beam experiment porch of mental retardation
On, diode cathode material selection cylindrical plane or ring-type high purity graphite negative electrode, the roughness of graphite cathode surface and
Even property handling process is one of key factor of impact cathode surface electronics uniform emission, if roughness is uneven, can be affected
The uniform emission of electron beam, or cause cathode surface strong point to launch, cause shorted diode；And after experiment every time, it is cloudy
Pole surface has electron emission vestige or the anode material of gasification is ejected into cathode surface, affects the reuse of cathode material.
In order to reuse cathode material, manual mode is all adopted after test every time, wiping of milling is carried out to cathode surface with abrasive paper for metallograph
Wipe.Adopt in this way, increased many artificial uncontrollable factors, and due to lacking the diagnostic means of surface roughness, this
On the one hand single experiment emission of cathode state is affected, the repeatability of diode operation is on the other hand also affected, to experimental result
Repeatability assessment brings unfavorable factor.In order to solve this problem, need to develop a kind of controllable negative electrode milling device, it is to avoid people
For subjective factorss, the concordance of cathode surface roughness is improved, improve accelerator diode operational efficiency and stability.
The content of the invention
It is an object of the invention to provide a kind of electron beam diode graphite cathode surface milling device, solves and manually mills
Wipe the uncontrollable technical problem of graphite cathode surface roughness.
The present invention technical solution be：The electron beam diode graphite cathode surface milling device for being provided, including
Mill platform, plate of milling, it is characterized in that：Also include that motor, location-plate, locating wheel and negative electrode place cylinder；Mill plate
Positioned at platform middle part of milling, sand paper is placed with plate of milling, negative electrode is placed on sand paper and places cylinder；Motor is located at plate lower section of milling
Platform interior of milling, for drive mill plate rotation；Location-plate one end is fixed on and is milled on platform, and the other end of location-plate hangs
Float on plate top of milling；Two end points that the suspension end of location-plate has the arc-shaped end face of indent, end face are respectively provided with one
Rotatable locating wheel, for limiting the range of movement that negative electrode places cylinder；It is hollow tubular knot that negative electrode places cylinder
Structure, inside is used for placing graphite negative electrode test specimen.
Above-mentioned location-plate is three, is symmetrically distributed in and mills on platform；It is also three that negative electrode places cylinder, with three positioning
Plate correspondence is placed, and three graphite cathode test specimens can be milled simultaneously, improves work efficiency.
Above-mentioned motor is buncher, and milling device also includes the time relay being connected with motor and motor and time
The connected controller of relay, for regulation motor rotary speed and rotational time.
Above-mentioned milling device also includes felt hair and counterweight；Felt hair is positioned on graphite cathode test specimen, and counterweight is positioned over felt hair
On, the frictional force of cathode emissive surface and sand paper can be increased, while avoiding graphite cathode test specimen side from placing cylinder with negative electrode
Collision during the unordered rotation of inwall.
Above-mentioned sand paper is milled sand paper for back of the body floss.
The beneficial effects of the present invention is：
(1) present invention is combined and is realized to graphite cathode by the orderly rotation of plate of milling and the unordered rotation of locating wheel
The unordered of surface of test piece is milled, and improves the concordance of cathode surface roughness, and then ensure that what electron beam diode worked
Stability.
(2) present invention places using cooperatively for cylinder by multiple location-plates and negative electrode, can be simultaneously cloudy to multiple graphite
Pole test specimen is milled, and improves work efficiency.
(3) present invention is by arranging buncher, the time relay and controller, thus it is possible to vary the speed of milling of milling device
Degree and grinding time, adjust degree of milling, macro-control graphite cathode surface roughness.
(4) present invention on graphite cathode test specimen by placing protection felt hair, and places counterweight on protection felt hair, increases
The frictional force of cathode emissive surface and sand paper, while avoiding graphite cathode test specimen side from placing the unordered rotation of cylinder inner wall with negative electrode
When collision.
Description of the drawings
Fig. 1 is present pre-ferred embodiments schematic perspective view；
Fig. 2 is present pre-ferred embodiments top view；
Fig. 3 is present pre-ferred embodiments side sectional view.
Specific embodiment
Milling device provided by the present invention mainly solves strong current pulsed relativistic electron beam accelerator diode operation
The conforming problem of middle graphite cathode surface roughness.By the orderly rotation of plate of milling, graphite cathode test specimen between locating wheel
Unordered rotation, realization the unordered of cathode emissive surface is milled；Milled sand paper granularity by changing back of the body floss, control grinding time
With the technique such as speed of milling, the roughness of macro-control surface of test piece is reached, reach macroscopical concordance of surface roughness.
Referring to Fig. 1,2 and 3, the preferred embodiment of milling device of the present invention includes mill platform 1, motor 2, controller 3, stone roller
Nog plate 4, location-plate 5 and locating wheel 6.Platform of milling is rectangular box body, and box house installs motor 2, and casing center is installed and ground
Nog plate 4.Motor 2 is the buncher with the time relay, drives plate 4 of milling to rotate.Body side installs controller 3, changes
The speed stage for becoming controller is arranged, and motor 2 drives plate 4 of milling to rotate with friction speed, changes the gear of the time relay, control
The rotational time of buncher processed 2.
Platform 1 of milling is installed with three pieces of location-plates 5 in center circumferential, and the main part of location-plate 5 is suspended on stone roller
The top of nog plate 4, the suspension end of location-plate 5 has an arc-shaped end face of indent, and two end points of end face are respectively provided with one can be around
The locating wheel 6 that itself axle is rotated.
Milling device also includes that accessory sand paper 7, negative electrode places cylinder 8, graphite cathode test specimen 9, felt hair 10, counterweight
11.Sand paper 7 is placed on mills on plate 4, and three negative electrode placement cylinders 8 are placed on back of the body floss and mill on sand paper 7, respectively positioned at three positioning
Between two locating wheels 6 of plate 5.It is hollow tubular structure that negative electrode places cylinder 8, and inside is used for placing graphite negative electrode test specimen 9,
Down, installation faces up cathode emissive surface.Felt hair 10 is placed on mounting surface, there is counterweight 11 on felt hair 10, it is cloudy to increase graphite
The frictional force of pole test specimen 9 and sand paper 7.
The unordered rotation of test specimen is the key for realizing cathode surface uniform treatment.During working platform, motor 2 drives plate of milling
4 rotate, and negative electrode places cylinder 8 and graphite cathode test specimen 9 is rotated with plate 4 of milling, and place cylinder 8 when negative electrode and encounter locating wheel
When 6, locating wheel 6 prevents its translation, while locating wheel 6 is rotated around itself axle, makes negative electrode place cylinder 8 and graphite cathode test specimen 9
Rotate between two locating wheels 6, milled the rotation between two locating wheels 6 of translation and graphite cathode test specimen 9 of sand paper 7 by carrying on the back floss
Turn to realize that the unordered of cathode surface is milled.
Locating wheel 6 can be rotated around itself axle, placed when cylinder 8 is collided with locating wheel 6 when negative electrode and produced reverse resistance, cloudy
Pole is placed cylinder 8 and graphite cathode test specimen 9 and is rotated with the opposite direction of locating wheel 6, the different positions of two locating wheels above plate of milling
Put the scope for limiting the unordered rotation of graphite cathode test specimen.
Increase by 4 kilograms of counterweights 11 on graphite cathode test specimen 9, increase graphite cathode test specimen 9 and back of the body floss are milled rubbing between sand paper 7
Resistance is wiped, prevents graphite cathode test specimen 9 and negative electrode from placing the collision of the inwall of cylinder 8.
Using the graphite cathode milling device, the concrete technology step of the process that carries out milling to graphite cathode is：Mill plate
On mill sand paper initially with the back of the body floss of 240 mesh, on test specimen plus 4 kilograms of counterweights, rotating speed control in 2 gears, milling time 40 minutes,
The sand paper milled on plate is then changed, is milled sand paper using the back of the body floss of 400 mesh, on test specimen plus 4 kilograms of counterweights, rotating speed is controlled 3
Gear, milling time 30 minutes；Most back floss mills sand paper using 1000 mesh, adds 4 kilograms of counterweights, rotating speed control to keep off 4 on test specimen,
Milling time 60 minutes.Jing above-mentioned three road mill process after the approximate minute surface of cathode surface, from macroscopically think cathode surface put down
Whole zero defect.Using above-mentioned technique of milling on milling device, the stability of electron beam diode operation is improve.
Claims (7)
1. a kind of electron beam diode graphite cathode surface milling device, including platform of milling, plate of milling, it is characterised in that：Also
Cylinder is placed including motor, location-plate, locating wheel and negative electrode；
The plate of milling is located at platform middle part of milling, and sand paper is placed with plate of milling, and negative electrode is placed on sand paper and places cylinder；
The motor is located at the platform interior of milling below plate of milling, for driving plate rotation of milling；
Described location-plate one end is fixed on and is milled on platform, and the other end of location-plate is suspended in plate top of milling；Location-plate it is outstanding
Floating arc-shaped end face of the end with indent, two end points of end face are respectively provided with a rotatable locating wheel, for limiting
Negative electrode processed places the range of movement of cylinder；
It is hollow tubular structure that the negative electrode places cylinder, and inside is used for placing graphite negative electrode test specimen；
Locating wheel can be rotated around itself axle, place when negative electrode and reverse resistance is produced when cylinder is collided with locating wheel, and negative electrode is placed
Cylinder and graphite cathode test specimen are rotated with locating wheel opposite direction.
2. electron beam diode graphite cathode surface milling device according to claim 1, it is characterised in that：The positioning
Plate is three, is symmetrically distributed in and mills on platform；It is also three that negative electrode places cylinder, placement corresponding with three location-plates.
3. electron beam diode graphite cathode surface milling device according to claim 1 and 2, it is characterised in that：It is described
Motor is buncher.
4. electron beam diode graphite cathode surface milling device according to claim 3, it is characterised in that：It is described to mill
Device also includes the time relay being connected with motor.
5. electron beam diode graphite cathode surface milling device according to claim 4, it is characterised in that：It is described to mill
Device also includes the controller being connected with motor and the time relay, for regulation motor rotary speed and rotational time.
6. electron beam diode graphite cathode surface milling device according to claim 5, it is characterised in that：It is described to mill
Device also includes felt hair and counterweight；Felt hair is positioned on graphite cathode test specimen, and counterweight is positioned on felt hair.
7. electron beam diode graphite cathode surface milling device according to claim 6, it is characterised in that：The sand paper
Mill sand paper to carry on the back floss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510784094.0A CN105304432B (en) | 2015-11-16 | 2015-11-16 | Device for grinding graphite cathode surface of electron beam diode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510784094.0A CN105304432B (en) | 2015-11-16 | 2015-11-16 | Device for grinding graphite cathode surface of electron beam diode |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105304432A CN105304432A (en) | 2016-02-03 |
| CN105304432B true CN105304432B (en) | 2017-04-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510784094.0A Expired - Fee Related CN105304432B (en) | 2015-11-16 | 2015-11-16 | Device for grinding graphite cathode surface of electron beam diode |
Country Status (1)
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| CN (1) | CN105304432B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6817919B1 (en) * | 1999-09-03 | 2004-11-16 | Matsushita Electric Industrial Co., Ltd. | Method and apparatus for manufacturing a frame work for shadow mask |
| CN1684802A (en) * | 2003-01-27 | 2005-10-19 | 珀巴尔兴业株式会社 | Polishing piece, polishing lap, and method of polishing glass panel for CRT |
| DE102009038942B4 (en) * | 2008-10-22 | 2022-06-23 | Peter Wolters Gmbh | Device for machining flat workpieces on both sides and method for machining a plurality of semiconductor wafers simultaneously by removing material from both sides |
| DE102010063179B4 (en) * | 2010-12-15 | 2012-10-04 | Siltronic Ag | Method for simultaneous material-removing machining of both sides of at least three semiconductor wafers |
| CN103317405A (en) * | 2013-05-23 | 2013-09-25 | 大连液压件有限公司 | Double-end grinding machine for single-face machining |
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| Publication number | Publication date |
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| CN105304432A (en) | 2016-02-03 |
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Granted publication date: 20170426 Termination date: 20201116 |