CN203367230U - Hollow cathode lamp device, - Google Patents
Hollow cathode lamp device, Download PDFInfo
- Publication number
- CN203367230U CN203367230U CN 201320320845 CN201320320845U CN203367230U CN 203367230 U CN203367230 U CN 203367230U CN 201320320845 CN201320320845 CN 201320320845 CN 201320320845 U CN201320320845 U CN 201320320845U CN 203367230 U CN203367230 U CN 203367230U
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- CN
- China
- Prior art keywords
- glass tube
- cushion block
- top end
- cathode lamp
- hollow cathode
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Abstract
The utility model provides a hollow cathode lamp device, wherein an external spectrograph can be combined in a hollow cathode lamp to directly detect the content of low-melting-point impurities in an alloy to be detected, and the precision can reach 0.00001% to 0.0001%, so that the detection precision is high. The hollow cathode lamp device comprises a glass tube, a top end cover, a cushion block and a rear fixing block, wherein the top end cover is arranged at the front end of the glass tube, the cushion block is arranged at the rear end of the glass tube, and the cushion block is fixedly connected with the rear fixing block at the rear thereof. The hollow cathode lamp device is characterized in that a graphite electrode is arranged in the glass tube, the graphite electrode is connected with the front end part of the glass tube through a connecting rod, a tungsten bar is arranged at the rear of the glass tube, a nickel piece structure is welded at the front end of the tungsten bar, the rear end of the tungsten bar is inserted into the cushion block, a hollow storage cavity is arranged at the end facing to the tungsten bar of the graphite electrode, and the alloy to be detected is placed in the hollow storage cavity.
Description
Technical field
The utility model relates to the technical field of metal spectrum analysis, is specially the hollow cathode lamp device.
Background technology
Blade in the market, the main material of axle are all to consist of dystectic alloy, but in manufacturing process, some low-melting-point metal impurity such as tin, lead, bismuth can be sneaked in the inside of material, cause in blade, axle run up process, these low-melting-point metal impurity first melt, and then form crack on blade, axle, cause the working life of these mechanical structures short.
So-called plasma source in spectrum analysis, be often referred to a class charging source of similar flame in appearance.At present the most frequently used have three classes: i.e. induction coupled plasma torch (ICP), direct-current plasma bright eruption (DCP) and the microwave plasma torch (MIP) of inducting.For MIP, although allow micro-sampling, air consumption is little, and power is low, it is nonmetal easily to measure, poor to most metal detection limits, Interelement interference serious, need helium, so is mainly used in the detector of chromatography.This two classes plasma source of ICP and DCP has analytical performance preferably, all has been applied to Atomic Emission Spectrometer AES.But this two classes plasma source of existing ICP and DCP detects the detection limit that is limited to 0.001%, for the foreign metal of low content more, it can't be detected.And, in existing spectrometer, hollow cathode lamp only plays luminous effect, its effect is single.
Summary of the invention
For the problems referred to above, the utility model provides the hollow cathode lamp device, its can by hollow cathode lamp inside in conjunction with external spectrometer, direct-detection goes out the content of the low melting point impurity in alloy to be detected, and its precision can reach 0.00001%～0.0001%, its accuracy of detection is high.
The hollow cathode lamp device, its technical scheme is such: it comprises glass tube, top end cover, cushion block, the rear portion fixed block, the front end of described glass tube is provided with described top end cover, the rear end of described glass tube is provided with described cushion block, described cushion block is fastenedly connected the described rear portion fixed block at its rear portion, it is characterized in that: described glass tube inside is provided with graphite electrode, described graphite electrode connects the leading section of described glass tube by connecting rod, the rear portion of described glass tube is provided with tungsten bar, the front end of described tungsten bar has been welded to connect the nickel chip architecture, the rear end of described tungsten bar is plugged in described cushion block inside, an end towards described tungsten bar of described graphite electrode is provided with hollow object placing cavity, place alloy to be detected in described hollow object placing cavity, the inside of described glass tube is full of inert gas.
It is further characterized in that: the outer ring surface arranged outside of described glass tube has fixed lever, and the two ends of every described fixed lever connect respectively described top end cover, cushion block, and is fastenedly connected by hold-down screw;
Be provided with silicagel pad between the contact-making surface of described glass tube and described top end cover;
The front end of described connecting rod runs through described silicagel pad, top end cover, and plug cover is loaded in the suit hole, front portion of described top end cover, and described plug blocks the front portion of described connecting rod.
After adopting structure of the present utility model, graphite electrode is as the negative electrode of hollow cathode lamp, place alloy to be detected in the hollow object placing cavity of graphite electrode, be welded with the tungsten bar of nickel chip architecture as anode, when between two-stage, applying high voltage, low-melting-point metal elder generation in alloy to be detected is luminous, refractory metal is luminous afterwards, the spectrum luminous according to its metal passes through spectrometer analysis, can analyze the content of the low melting point impurity that draws alloy to be detected, and its precision can reach 0.00001%～0.0001%, and accuracy of detection is high.
The accompanying drawing explanation
Fig. 1 is stereogram structural representation block diagram of the present utility model;
Fig. 2 is front view structural representation of the present utility model.
Embodiment
See Fig. 1, Fig. 2, it comprises glass tube 1, top end cover 2, cushion block 3, rear portion fixed block 4, the front end of glass tube 1 is provided with top end cover 2, the rear end of glass tube 1 is provided with cushion block 3, cushion block 3 is fastenedly connected the rear portion fixed block 4 at its rear portion, glass tube 1 inside is provided with graphite electrode 5, graphite electrode 5 connects the leading section of glass tube 1 by connecting rod 6, the rear portion of glass tube 1 is provided with tungsten bar 7, the front end of tungsten bar 7 has been welded to connect nickel chip architecture 8, the rear end of tungsten bar 7 is plugged in cushion block 3 inside, an end towards tungsten bar 7 of graphite electrode 5 is provided with hollow object placing cavity 9, the interior placement of hollow object placing cavity 9 alloy 14 to be detected, the inside of glass tube 1 is full of inert gas.The outer ring surface arranged outside of glass tube 1 has fixed lever 10, and the two ends of every fixed lever 10 connect respectively top end cover 2, cushion block 3, and is fastenedly connected by hold-down screw 11; Be provided with silicagel pad 12 between the contact-making surface of glass tube 1 and top end cover 2; The front end through-silicon rubber cushion 12 of connecting rod 6, top end cover 2, plug 13 mounts cover in suit hole, the front portion of top end cover 2, and plug 13 blocks the front portion of connecting rod 6.
Claims (4)
1. hollow cathode lamp device, it comprises glass tube, top end cover, cushion block, the rear portion fixed block, the front end of described glass tube is provided with described top end cover, the rear end of described glass tube is provided with described cushion block, described cushion block is fastenedly connected the described rear portion fixed block at its rear portion, it is characterized in that: described glass tube inside is provided with graphite electrode, described graphite electrode connects the leading section of described glass tube by connecting rod, the rear portion of described glass tube is provided with tungsten bar, the front end of described tungsten bar has been welded to connect the nickel chip architecture, the rear end of described tungsten bar is plugged in described cushion block inside, an end towards described tungsten bar of described graphite electrode is provided with hollow object placing cavity, place alloy to be detected in described hollow object placing cavity, the inside of described glass tube is full of inert gas.
2. hollow cathode lamp device according to claim 1, it is characterized in that: the outer ring surface arranged outside of described glass tube has fixed lever, and the two ends of every described fixed lever connect respectively described top end cover, cushion block, and is fastenedly connected by hold-down screw.
3. hollow cathode lamp device according to claim 2, is characterized in that: between the contact-making surface of described glass tube and described top end cover, be provided with silicagel pad.
4. hollow cathode lamp device according to claim 3, it is characterized in that: the front end of described connecting rod runs through described silicagel pad, top end cover, and plug cover is loaded in the suit hole, front portion of described top end cover, and described plug blocks the front portion of described connecting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320320845 CN203367230U (en) | 2013-06-05 | 2013-06-05 | Hollow cathode lamp device, |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320320845 CN203367230U (en) | 2013-06-05 | 2013-06-05 | Hollow cathode lamp device, |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203367230U true CN203367230U (en) | 2013-12-25 |
Family
ID=49814951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320320845 Expired - Lifetime CN203367230U (en) | 2013-06-05 | 2013-06-05 | Hollow cathode lamp device, |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203367230U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103337447A (en) * | 2013-06-05 | 2013-10-02 | 无锡市金义博仪器科技有限公司 | A hollow cathode lamp apparatus |
-
2013
- 2013-06-05 CN CN 201320320845 patent/CN203367230U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103337447A (en) * | 2013-06-05 | 2013-10-02 | 无锡市金义博仪器科技有限公司 | A hollow cathode lamp apparatus |
| CN103337447B (en) * | 2013-06-05 | 2016-12-28 | 无锡市金义博仪器科技有限公司 | Hollow cathode lamp device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |