CN203772747U - ARL spark emission spectrometer excitation stabilizing device - Google Patents
ARL spark emission spectrometer excitation stabilizing device Download PDFInfo
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- CN203772747U CN203772747U CN201420042478.6U CN201420042478U CN203772747U CN 203772747 U CN203772747 U CN 203772747U CN 201420042478 U CN201420042478 U CN 201420042478U CN 203772747 U CN203772747 U CN 203772747U
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- tungsten carbide
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- carbide chip
- excitation bench
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Abstract
The utility model discloses an ARL spark emission spectrometer excitation stabilizing device which belongs to chemical analysis instruments, and particularly relates to a multi-element spark emission spectrum analysis device. The ARL spark emission spectrometer excitation stabilizing device is characterized in that the upper surface of an excitation platform is smooth and provided with screw holes; a tungsten carbide sheet which has a smooth surface is embedded in a groove of the excitation platform and the upper surfaces of the tungsten carbide sheet and the groove are level; a rectangular sample positioning plate is arranged on the excitation platform and the tungsten carbide sheet; a V-shaped opening, a strip-shaped adjusting slotted hole, a front contact foot and a rear contact foot are symmetrically arranged on the positioning plate relative to the longitudinal axle wire of the positioning plate; the positioning plate is fixed on the excitation platform through compression bolts and a soft washer; the front contact foot is pressed on the tungsten carbide sheet and the rear contact foot is pressed on the excitation platform to form another electric conduction channel of the tungsten carbide sheet and the excitation platform. The ARL spark emission spectrometer excitation stabilizing device has the advantages that the conception is novel, the structure is simple and compact, the contact resistance of the tungsten carbide sheet and the excitation platform is stabilized to ensure that the resistance value is less than 1 omega, the cleaning work of the excitation platform is convenient, the maintenance efficiency of the device is improved, the consumption of spare parts is decreased and the utilization rate of the spectrometer is increased.
Description
Technical field
The utility model belongs to chemical analysis instrument, relates in particular to the spark emission analytical equipment of multielement.
Background technology
Spark emission spectrometry is widely used in metallurgy industry, is the common instrument of molten steel composition express-analysis, in steelmaking process control and steel products quality analysis judgement, plays a significant role.The sample excitation apparatus of ARL 4460 Spark emission spectrometries of current use is made up of excitation bench, tungsten carbide chip, electrode, insulating bowl and associated electronic circuits.On the excitation bench of ground connection, establish and be with reeded circular hole, center to have the tungsten carbide chip of circular small through hole to be embedded on groove; Tungsten carbide chip underlying insulating bowl, electrode head stretches in insulating bowl, be positioned at tungsten carbide chip round tube hole under, form spark chamber, it is relative with sample shot point (needing the zonule of analysis) that electrode sees through tungsten carbide chip round tube hole, under perfect condition, sample, tungsten carbide chip and excitation bench touching position are in identical, stable zero potential; Under excitation bench, be also provided with the light path and the argon purge passage that are full of argon gas.When electrode adds high pressure, between sample shot point and electrode, produce spark discharge, electric discharge is limited in spark chamber, in sample, the characteristic spectral line of each element enters the incidence window of instrument spectrum chamber through light path, carry out again light splitting and ionization meter, draw analysis data, the granule dust that spark discharge produces is discharged by argon purge passage.Because tungsten carbide chip is expensive and the thin property of sheet is crisp, when cleaning sample excitation apparatus, easily come off and smash, therefore in the actual use of instrument, often tungsten carbide chip is binded in the groove of excitation bench with glue, the position that when bonding, extruding has both bond areas is full of glue, some positions directly contact, and tungsten carbide chip utilizes just with this contact of excitation bench and is grounded.The defect existing is: spectrometer used after a period of time, the granule dust that spark discharge produces is clogged in the gap of excitation bench and tungsten carbide chip surface of contact, removing is wasted time and energy, be difficult to remove clean, also fragile tungsten carbide chip, particularly cause the contact resistance variation between tungsten carbide chip and excitation bench indefinite, spark chamber internal electric field distributes unstable, the spark shakiness that moves swiftly when sample excites, affect sample stimulation effect and line strength, make the somehow or other fluctuation often of instrumental analysis data, RSD is up to 10%, particularly sulphur, P elements strength fluctuation is larger, directly affecting steelmaking process control and the quantitative analysis of steel products matter judges.
Utility model content
The defect existing in order to overcome prior art, the purpose of this utility model is to provide a kind of ARL Spark emission spectrometry and excites stabilising arrangement, the definite contact resistance that effectively reduces tungsten carbide chip and excitation bench, ground connection situation and the spark chamber space electric field of stablizing tungsten carbide chip distribute, and then make sample obtain stable exciting, improve the accuracy of analyzing data, be conducive to the judgement of steelmaking process control and product quality, facilitate the cleaning maintenance work of sample excitation apparatus, reduce the consumption of standby redundancy.
ARL Spark emission spectrometry excites stabilising arrangement, formed by excitation bench, tungsten carbide chip, electrode and insulating bowl, circular tungsten carbide chip is embedded on the excitation bench of ground connection, excitation bench is divided into spark chamber, light path and argon purge passage, and electrode head is placed in spark chamber, see through tungsten carbide chip center small sircle hole relative with sample shot point, be characterized in that described excitation bench upper surface is smooth and establish screw hole, the tungsten carbide chip of surfacing is embedded in the groove of excitation bench, and the two upper surface maintains an equal level; On excitation bench and tungsten carbide chip, establish rectangular specimen location-plate, location-plate with its longitudinal central axis line symmetry establish " V " shape gap, bar shaped regulate slotted eye, front contact foot with after contact enough, location-plate is fixed on excitation bench by housing screw and soft packing ring, keep the flexibility of sample location-plate pressure holding tungsten carbide chip, improve electrical pickoff contact condition, protection tungsten carbide chip; Before location-plate, contact foot is pressed on tungsten carbide chip, rear contact foot is pressed on excitation bench, form another conductive channel of tungsten carbide chip and excitation bench, the impact of particle on the two contact of avoiding spark discharge to produce, maintain contact resistance stable, make sample, tungsten carbide chip and excitation bench in identical earth potential.When analysis, according to specimen shape and positioning requirements, regioselective plate " V " shape gap towards, and utilize bar shaped to regulate slotted eye to regulate location-plate position, when general analysis circular specimen, sample location-plate " V " shape gap is towards tungsten carbide chip center pit, sample is pushed " V " shape gap, location-plate while analyzing square sample " V " shape gap tungsten carbide chip center pit dorsad, and sample leans against on location-plate straight flange.Electrode adds high pressure, between sample shot point and electrode, produces spark discharge at spark chamber, after analytical element is excited, launches characteristic spectral line, carries out the mensuration of sample constituents by detecting its intensity.
The utility model further improves, and described location-plate regulates slotted eye elongated, and two ends are rounded, split in " V " shape gap both sides, and with longitudinal central axis line parallel, two adjustment hole length and widths are consistent, between two adjustment holes, width equates with the screw hole pitch-row of establishing on excitation bench.
The utility model further improves, on described location-plate, at least establish a pair of front contact foot and a pair of after contact foot, every pair of sufficient line of contact is vertical with axis, two front contacts are sufficient parallel with axis with the sufficient line of rear contact, support steady, stressed even; Contact foot is highly equal, and foot end is smooth flat, and keep in touch foot and be face with tungsten carbide chip, excitation bench and contact, minimizing contact resistance, its resistance value is lower than 1 Ω.
The utility model further improves, the upper and lower surface of described location-plate at least respectively establish a pair of front contact foot and after contact foot, be convenient to the front-back two-sided use of location-plate, adapt to the location of difformity sample, increase location-plate serviceable life.
When work, tungsten carbide chip is embedded on the excitation bench of ground connection, sample is positioned on tungsten carbide chip, it is relative with electrode that sample shot point sees through the middle circular hole of tungsten carbide chip, housing screw and soft packing ring are fixed on location-plate on excitation bench, before location-plate, contact foot contacts with tungsten carbide is unilateral, location-plate contacts with exciting table top by rear contact foot again, make to form between tungsten carbide chip and excitation bench a conductive path, the spark chamber space electric field distributional stability of spark spectrum instrument, between sample shot point and electrode, produce spark discharge, after being excited, analytical element launches characteristic spectral line, by measuring the intensity of each element spectral line, determine the content of element to be analyzed in sample.
Compared with prior art, advantage is novel, simple in structure, compact; Stablize the contact resistance of tungsten carbide chip and excitation bench, its resistance value is less than 1 Ω; Improve accuracy, the reliability of instrumental analysis data, improve the validity of steel quality control while smelting, ensure carrying out smoothly of production; By the resistance value between monitoring tungsten carbide chip and excitation bench, realize with quantitative standard, the particular state that precognition and control spectrometer are associated with analysis data stability, coaching device is safeguarded, facilitate the cleaning maintenance work of sample excitation apparatus, increase work efficiency, reduce standby redundancy consumption, improve spectrometer utilization factor.
Brief description of the drawings
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Fig. 1 is the structural representation that ARL Spark emission spectrometry excites stabilising arrangement;
Fig. 2 is stereographic map of the present utility model;
Fig. 3 is the structural representation of the utility model embodiment 1 location-plate;
Fig. 4 is the structural perspective of the utility model embodiment 1 location-plate;
Fig. 5 is the structural perspective of the utility model embodiment 2 location-plates;
Fig. 6 is working state figure of the present utility model.
In figure: before 1-excitation bench, 2-tungsten carbide chip, 3-location-plate, 3.1-, contact foot, 3.2-contact foot, 3.4-gap, 4-housing screw, the soft packing ring of 5-, 6-sample, 7-spark chamber, 8-electrode, 9-insulating bowl, 10-light path, 11-argon purge passage after regulating slotted eye, 3.3-.
Embodiment
Below in conjunction with embodiment, the utility model will be further described.
Can be found out by Fig. 1,2,3, ARL Spark emission spectrometry excites stabilising arrangement, formed by excitation bench 1, tungsten carbide chip 2, electrode 8 and insulating bowl 9, circular tungsten carbide chip is embedded on the excitation bench of ground connection, excitation bench is divided into spark chamber 7, light path 10 and argon purge passage 11, electrode head is placed in spark chamber, see through tungsten carbide chip center small sircle hole relative with sample 6 shot points, excitation bench upper surface is smooth and establish screw hole, the tungsten carbide chip of surfacing is embedded in the groove of excitation bench, and the two upper surface maintains an equal level; On excitation bench and tungsten carbide chip, establish rectangular specimen location-plate 3, location-plate with its longitudinal central axis line symmetry establish " V " shape gap 3.4, bar shaped regulate slotted eye 3.2, front contact foot 3.1 with after contact enough 3.3, location-plate is fixed on excitation bench by housing screw 4 and soft packing ring 5, keep the flexibility of sample location-plate pressure holding tungsten carbide chip, improve electrical pickoff contact condition, protection tungsten carbide chip; Before location-plate, contact foot is pressed on tungsten carbide chip, rear contact foot is pressed on excitation bench, form another conductive channel of tungsten carbide chip and excitation bench, the impact of particle on the two contact of avoiding spark discharge to produce, maintain contact resistance stable, make sample, tungsten carbide chip and excitation bench in identical earth potential.When analysis, according to specimen shape and positioning requirements, regioselective plate " V " shape gap towards, and utilize bar shaped to regulate slotted eye to regulate location-plate position, when general analysis circular specimen, sample location-plate " V " shape gap is towards tungsten carbide chip center pit, sample is pushed " V " shape gap, location-plate while analyzing square sample " V " shape gap tungsten carbide chip center pit dorsad, and sample leans against on location-plate straight flange.Electrode adds high pressure, between sample shot point and electrode, produces spark discharge at spark chamber, after analytical element is excited, launches characteristic spectral line, carries out the mensuration of sample constituents by detecting its intensity.
Can be found out by Fig. 3,4, regulate slotted eye 3.2 elongated, two ends are rounded, split in " V " shape gap 3.4 both sides, and with longitudinal central axis line parallel, two adjustment hole length and widths are consistent, between two adjustment holes, width equates with the screw hole pitch-row of establishing on excitation bench 1.
Be it can also be seen that by Fig. 3,4, on location-plate 3, establish a pair of front contact foot 3.1 with a pair of after contact foot 3.3, every pair of sufficient line of contact is vertical with axis, two front contacts foots are parallel with axis with the sufficient line of rear contact, support steady, stressed even; Contact foot is highly equal, and foot end is smooth flat, and keep in touch foot and be face with tungsten carbide chip, excitation bench 1 and contact, minimizing contact resistance, its resistance value is lower than 1 Ω.
Can be found out by Fig. 5,6, the upper and lower surface of location-plate 3 respectively establish a pair of front contact foot 3.1 with after contact foot 3.3, be convenient to the front-back two-sided use of location-plate, adapt to the location of difformity sample, increase location-plate serviceable life.
When work, tungsten carbide chip is embedded on the excitation bench of ground connection, sample is positioned on tungsten carbide chip, it is relative with electrode that sample shot point sees through the middle annular distance of tungsten carbide chip, housing screw and soft packing ring are fixed on location-plate on excitation bench, before location-plate, contact foot contacts with tungsten carbide is unilateral, location-plate contacts with exciting table top by rear contact foot again, make to form between tungsten carbide chip and excitation bench a conductive path, the spark chamber space electric field distributional stability of spark spectrum instrument, between sample shot point and electrode, produce spark discharge, measure the intensity of element spectral line in sample, the content of analytical sample element to be measured.
Claims (4)
1.ARL Spark emission spectrometry excites stabilising arrangement, formed by excitation bench (1), tungsten carbide chip (2), electrode (8) and insulating bowl (9), circular tungsten carbide chip is embedded on the excitation bench of ground connection, excitation bench is divided into spark chamber (7), light path (10) and argon purge passage (11), electrode head is placed in spark chamber, see through tungsten carbide chip center small sircle hole relative with sample (6) shot point, it is characterized in that: described excitation bench upper surface is smooth and establish screw hole, the tungsten carbide chip of surfacing is embedded in the groove of excitation bench, and the two upper surface maintains an equal level; On excitation bench and tungsten carbide chip, establish rectangular specimen location-plate (3), location-plate with its longitudinal central axis line symmetry establish " V " shape gap (3.4), bar shaped regulate slotted eye (3.2), front contact foot (3.1) with after contact (3.3) enough, location-plate is fixed on excitation bench by housing screw (4) and soft packing ring (5), front contact foot is pressed on tungsten carbide chip, rear contact foot is pressed on excitation bench, forms another conductive channel of tungsten carbide chip and excitation bench.
2. ARL Spark emission spectrometry according to claim 1 excites stabilising arrangement, it is characterized in that: described adjusting slotted eye (3.2) is elongated, two ends are rounded, split in " V " shape gap (3.4) both sides, and with longitudinal central axis line parallel, article two, adjustment hole length and width is consistent, and between two adjustment holes, width equates with the screw hole pitch-row of establishing on excitation bench (1).
3. ARL Spark emission spectrometry according to claim 1 excites stabilising arrangement, it is characterized in that: on described location-plate (3), at least establish a pair of front contact foot (3.1) and a pair of after contact (3.3) enough, every pair of sufficient line of contact is vertical with axis, two front contact foots are parallel with axis with the sufficient line of rear contact, supporting steadily, stressed even; Contact foot is highly equal, and foot end, for smooth flat, keeps in touch foot and is face and contacts with tungsten carbide chip, excitation bench (1).
4. ARL Spark emission spectrometry according to claim 1 excites stabilising arrangement, it is characterized in that: the upper and lower surface of described location-plate (3) at least respectively establish a pair of front contact foot (3.1) and after contact (3.3) enough.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420042478.6U CN203772747U (en) | 2014-01-23 | 2014-01-23 | ARL spark emission spectrometer excitation stabilizing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420042478.6U CN203772747U (en) | 2014-01-23 | 2014-01-23 | ARL spark emission spectrometer excitation stabilizing device |
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| Publication Number | Publication Date |
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| CN203772747U true CN203772747U (en) | 2014-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420042478.6U Expired - Fee Related CN203772747U (en) | 2014-01-23 | 2014-01-23 | ARL spark emission spectrometer excitation stabilizing device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105259122A (en) * | 2015-11-04 | 2016-01-20 | 重庆戴卡捷力轮毂制造有限公司 | Spectrum sample backup plate and spectrum sample positioning structure |
| CN107687897A (en) * | 2017-08-12 | 2018-02-13 | 烟台东方分析仪器有限公司 | Integral type spark excitation room cavity body structure |
| CN109341853A (en) * | 2018-10-11 | 2019-02-15 | 上海荣高电子科技有限公司 | A kind of multi-directional airflow flusher of spectrometer |
| CN112088302A (en) * | 2018-05-04 | 2020-12-15 | 德国元素分析系统公司 | Spark emission spectrometer with separable spark chamber |
-
2014
- 2014-01-23 CN CN201420042478.6U patent/CN203772747U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105259122A (en) * | 2015-11-04 | 2016-01-20 | 重庆戴卡捷力轮毂制造有限公司 | Spectrum sample backup plate and spectrum sample positioning structure |
| CN107687897A (en) * | 2017-08-12 | 2018-02-13 | 烟台东方分析仪器有限公司 | Integral type spark excitation room cavity body structure |
| CN112088302A (en) * | 2018-05-04 | 2020-12-15 | 德国元素分析系统公司 | Spark emission spectrometer with separable spark chamber |
| CN112088302B (en) * | 2018-05-04 | 2023-09-15 | 德国元素分析系统公司 | Spark emission spectrometer with separable spark chamber |
| CN109341853A (en) * | 2018-10-11 | 2019-02-15 | 上海荣高电子科技有限公司 | A kind of multi-directional airflow flusher of spectrometer |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140813 Termination date: 20220123 |
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| CF01 | Termination of patent right due to non-payment of annual fee |