CN201773083U - Quick detection device for resistivity of molten metals - Google Patents
Quick detection device for resistivity of molten metals Download PDFInfo
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- CN201773083U CN201773083U CN2010200447169U CN201020044716U CN201773083U CN 201773083 U CN201773083 U CN 201773083U CN 2010200447169 U CN2010200447169 U CN 2010200447169U CN 201020044716 U CN201020044716 U CN 201020044716U CN 201773083 U CN201773083 U CN 201773083U
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- probe
- resistivity
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- detection device
- vacuum pump
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Abstract
The utility model relates to a quick detection device for the resistivity of molten metals. The research on the physical property of liquid metals is a hot subject of scientific research all the time, much research work has been done by scientists of all countries, and some encouraging research achievements have been obtained in China in recent years. The quick detection device for the resistivity of the molten metals comprises a probe (1); a computer circuit connected with the probe is connected with a lifting mechanism (7) and a vacuum pump (8), the cap of the probe is filled with a high-temperature resistant material and high temperature resistant sealant for sealing the opening; and the probe comprises a thermocouple (13) passing through the probe, two straight tubular double quartz tube conductance cells (14) and two electrodes (15) connected with the quartz tubes. The utility model is used for the field of casting and metallurgy.
Description
Technical field:
The present invention relates to metallurgy and casting field, be specifically related to a kind of metal bath resistivity device for fast detecting and detection method.
Background technology:
The Study on Physical of liquid metal is the heat subject of scientific research always, and the various countries scientist has done number of research projects for this reason, has also obtained some gratifying achievements in research in China in recent years.Resistivity is one of very important physical parameter of liquid metal, except because resistivity can be undergone mutation during the metal liquid-solid-phase changeable, find also that in high temperature section the structural change of liquid metal also can be reflected delicately by the variation of resistivity far above liquidus curve.Therefore, by the research of resistivity-temperature curve, can obtain the many useful informations of the institutional framework of solid-state and liquid metal with the temperature evolution.No matter be that its resistivity of solid metallic or liquid metal is less usually, in order accurately to measure its resistance value.In the metal bath resistivity measurement, normally four electrodes are embedded in and have in the conductance cell capillaceous, conductance cell can be single immersion pipe, also can be two " U " pipe.When metal bath reached predetermined temperature in the crucible, the conductance cell that will have electrode immerses melt made metal bath filling conductance cell, forms the power circuit of test.Because melt resistance and specimen shape are in close relations, therefore conductance cell is had high requirements, and special-shaped conductance cell is difficult to guarantee the accurate dimensions precision.And special-shaped conductance cell will guarantee that the accurate dimensions precision is difficult to.
Summary of the invention:
The purpose of this invention is to provide a kind of metal bath conductivity pick-up unit that aspirating with conductance cell simple shape, negative pressure of high value of practical taken a sample, contact electrode is measured as principal character that has.
The purpose of foregoing invention realizes by following technical scheme:
Metal bath resistivity device for fast detecting, its composition comprises: probe, the computer circuits that described probe connects connect elevating mechanism and negative pressure suction sampling vacuum pump simultaneously, the exotic material of filling and the refractory seals glue that seals are arranged in the described probe cap, and described probe comprises the electroheat pair that passes wherein, two electrodes that straight-cylindrical biquartz pipe conductance cell is connected with described quartz ampoule.
Described metal bath resistivity device for fast detecting, described vacuum pump connects probe by surge tank, described probe has probe cap, described computer circuits comprise power supply and filtering circuit, described filtering circuit connects data amplifier, described data amplifier connects signals collecting integrated circuit board, described signal acquiring board card connection computing machine.
Beneficial effect:
1. probe processing and fabricating of the present invention is simple, adopt biquartz pipe conductance cell, two straight-cylindrical quartz ampoules can make parameters such as the length, internal diameter of conductance cell all measure very accurately and fast, measurement result is most important accurately for obtaining for this, is to improve the most basic, the effective measures of alloy melt resistivity measurements precision.
2. negative pressure suction sampling method of the present invention not only can guarantee the quick filling conductance cell of alloy melt, improve test speed, and can guarantee that alloy melt be difficult for to be detained bubble again when being full of conductance cell fully, and have simple to operately simultaneously, easily be automated the characteristics of on-line measurement.
Description of drawings:
Fig. 1 is a system construction drawing of the present invention.
Fig. 2 is the sonde configuration figure of Fig. 1.
Fig. 3 is the circuit system block diagram of Fig. 1.
Fig. 4 is the system circuit diagram of Fig. 1.
The specific embodiment of the present invention:
Embodiment 1:
Metal bath resistivity device for fast detecting, its composition comprises: probe 1, the computer circuits that described probe 1 connects connect elevating mechanism 7 and vacuum pump 8 simultaneously, exotic material 11 of filling in the described probe and the refractory seals glue 12 that seals, described probe 1 comprise the electroheat pair that passes wherein 13, two electrodes 15 that straight-cylindrical biquartz pipe conductance cell 14 is connected with described quartz ampoule.
Described vacuum pump connects probe 1 by surge tank 9, described probe has probe cap 10, computer circuits comprise that described probe 1 connects power supply 2 and filtering circuit 3 simultaneously, described filtering circuit 3 connects data amplifier 4, described data amplifier 4 connects signals collecting integrated circuit board 5, described signals collecting integrated circuit board 5 connects computing machine 6, and described vacuum pump 8 connects probe 1 by surge tank 9.
Claims (2)
1. metal bath resistivity device for fast detecting, its composition comprises: probe, it is characterized in that: the computer circuits that described probe connects connect elevating mechanism and negative pressure suction sampling vacuum pump simultaneously, the exotic material of filling and the refractory seals glue that seals are arranged in the described probe cap, and described probe comprises the electroheat pair that passes wherein, two electrodes that straight-cylindrical biquartz pipe conductance cell is connected with described quartz ampoule.
2. metal bath resistivity device for fast detecting according to claim 1, it is characterized in that: described vacuum pump connects probe by surge tank, described probe has probe cap, described computer circuits comprise power supply and filtering circuit, described filtering circuit connects data amplifier, described data amplifier connects signals collecting integrated circuit board, described signal acquiring board card connection computing machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200447169U CN201773083U (en) | 2010-01-06 | 2010-01-06 | Quick detection device for resistivity of molten metals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200447169U CN201773083U (en) | 2010-01-06 | 2010-01-06 | Quick detection device for resistivity of molten metals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201773083U true CN201773083U (en) | 2011-03-23 |
Family
ID=43752930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010200447169U Expired - Fee Related CN201773083U (en) | 2010-01-06 | 2010-01-06 | Quick detection device for resistivity of molten metals |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201773083U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102116802B (en) * | 2010-01-06 | 2013-05-15 | 哈尔滨理工大学 | Device and method for rapidly detecting electric resistivity of molten metal |
| CN107144595A (en) * | 2017-06-06 | 2017-09-08 | 南昌大学 | Thermocouple and the repeatable cast aluminium alloy gold Sampling device for thermal analysis utilized of sampling cup |
-
2010
- 2010-01-06 CN CN2010200447169U patent/CN201773083U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102116802B (en) * | 2010-01-06 | 2013-05-15 | 哈尔滨理工大学 | Device and method for rapidly detecting electric resistivity of molten metal |
| CN107144595A (en) * | 2017-06-06 | 2017-09-08 | 南昌大学 | Thermocouple and the repeatable cast aluminium alloy gold Sampling device for thermal analysis utilized of sampling cup |
| CN107144595B (en) * | 2017-06-06 | 2023-09-01 | 南昌大学 | Cast aluminum alloy thermal analysis sampling device with reusable thermocouple and sampling cup |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20110323 Termination date: 20150106 |
|
| EXPY | Termination of patent right or utility model |