CN205643217U - A permanent magnet test device for magnetic cooling contrast - Google Patents
A permanent magnet test device for magnetic cooling contrast Download PDFInfo
- Publication number
- CN205643217U CN205643217U CN201620114951.6U CN201620114951U CN205643217U CN 205643217 U CN205643217 U CN 205643217U CN 201620114951 U CN201620114951 U CN 201620114951U CN 205643217 U CN205643217 U CN 205643217U
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- permanent magnet
- trepanning
- sample
- tested
- annular
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Abstract
The utility model discloses a permanent magnet test device for magnetic cooling contrast, including holder, annular permanent magnet, the sample that awaits measuring, thermocouple sensor, workstation, the trepanning that switches on about the workstation is equipped with, the annular permanent magnet dress connects the outside of trepanning to make the inboard magnetic field that forms of this trepanning, the sample detachably that awaits measuring dress connect in the holder, the sample that just should await measuring can stretch into the trepanning, thermocouple sensor dress connect in the await measuring surface of sample. The utility model provides a research magnetic annealing effect's test device, through replacement annular permanent magnet, the realization contrasts the speed of the sample drop in temperature under the condition that magnetizes and do not magnetize that awaits measuring.
Description
Technical field
This utility model relates to a kind of permanent magnet assay device for mangneto cooling contrast.
Background technology
Magnetic field secondary process is as carrying out a kind of energy field householder method earlier, and because its processing cost is low, impressed field such as easily removes at the advantage, is widely used.Magnetic field mainly affects the course of processing by magnetic effect, and magnetic effect includes magnetostriction, and mangneto cools down, mangneto phase transformation etc..Magnetic annealing effect is mainly manifested in, there is the confusion of magnetic domain direction in permeability magnetic material during demagnetization, this process can absorb substantial amounts of heat, and this endothermic process occurs at material internal simultaneously, need not diabatic process, therefore cooling effectiveness and rate of cooling are the highest.Magnetic annealing effect has substantially help for the dissipation of heat energy under adiabatic situation, therefore may be magnetized by the continuous print external world (actively magnetize) and heat in metal cutting demagnetization (passive demagnetization), take away the heat of machining area quickly and efficiently, reduce the localized hyperthermia that machining area produces.Warburg in 1881 is initially observed metallic iron heat effect in externally-applied magnetic field, and within 1895, Langeviz is found that magnetothermal effect.Weiss in 1918 finds that ferromagnet adiabatic magnetization can change along with reversible temperature first.Nineteen twenty-six Debye et al. proposes to utilize adiabatic demagnetization cool-down method to obtain low temperature.Giangue in 1933 et al. uses magnetic material as working medium, obtains the low temperature of below 1K by isothermal magnetization and adiabatic demagnetization method.Research magnetic annealing effect needs control sample at the speed declined with or without temperature under conditions of magnetizing, sample temperature drop curve under the conditions of being recorded by experiment under the conditions of magnetizing and not magnetizing, utilize the correlation theory of magnetic energy and heat energy, research magnetic energy and mutual relation of heat energy in magnetic annealing effect.Therefore to research magnetic annealing effect, contrast the speed that under conditions of magnetizing and not magnetizing, temperature declines, need a kind of permanent magnet assay device for mangneto cooling contrast.
Utility model content
The purpose of this utility model is to overcome the deficiency of prior art, it is provided that a kind of assay device for studying magnetic annealing effect, by replacing annular permanent magnet, it is achieved the contrast sample to be tested speed that temperature declines under conditions of magnetizing and not magnetizing.
This utility model solves the technical scheme that its technical problem used:
A kind of permanent magnet assay device for mangneto cooling contrast, including clamper, annular permanent magnet, sample to be tested, thermocouple sensor, workbench；Described workbench is provided with the trepanning turned on up and down, and described annular permanent magnet is installed in the outside of described trepanning, and makes the formation magnetic field, inner side of this trepanning；Described sample to be tested is removably secured to described clamper, by described clamper is matched with described trepanning, can be inserted in the magnetic field in trepanning by described sample to be tested；Described thermocouple sensor is secured to the surface of described sample to be tested.
Preferred as one, also include the annular metalwork identical with described annular permanent magnet shape, described annular metalwork is removably installed in the outside of described trepanning.
Preferred as one, the surface of described sample to be tested is provided with groove, for installing temperature-sensing probe.
Preferred as one, also include annular fixing member, this annular fixing member be provided with the intercommunicating pore can being conducted with described trepanning；Described annular permanent magnet is installed in the outer rear flank of described annular fixing member, is installed in the outside of described trepanning；Described annular metalwork is installed in the outer rear flank of described annular fixing member, is installed in the outside of described trepanning.
Preferred as one, described annular fixing member and clamper are diamagnetic material.Described diamagnetic material is aluminum, titanium alloy etc..
Preferred as one, described sample to be tested is provided with threaded joints, described sample to be tested by this threaded joints interlocking in described clamper.
The beneficial effects of the utility model are: this utility model provides a kind of assay device for studying magnetic annealing effect, by replacing annular permanent magnet, realizing the contrast sample to be tested speed that temperature declines under conditions of magnetizing and not magnetizing, apparatus structure is simple, and measurement effect is good；Also provide a kind of new measuring method and Research Thinking to research worker simultaneously.
Below in conjunction with drawings and Examples, this utility model is described in further detail；But a kind of permanent magnet assay device for mangneto cooling contrast of the present utility model is not limited to embodiment.
Accompanying drawing explanation
Fig. 1 is exploded perspective view of the present utility model；
Fig. 2 is top view of the present utility model；
Fig. 3 is the structural representation of sample to be tested of the present utility model；
Fig. 4 is the temperature drop curve chart of DT4C pure iron temperature drop contrast experiment of the present utility model.
Detailed description of the invention
Embodiment
Referring to shown in Fig. 1 to Fig. 3, a kind of permanent magnet assay device for mangneto cooling contrast of the present utility model, including clamper 6, annular permanent magnet 1, sample to be tested 5, thermocouple sensor, workbench 4；Described workbench 4 is provided with the trepanning 41 turned on up and down, and described annular permanent magnet 1 is installed in the outside of described trepanning 41, and makes the formation magnetic field, inner side of this trepanning 41；Described sample to be tested 5 is removably secured to described clamper 6, by described clamper 6 is matched with described trepanning 41, can be put in 5 magnetic fields entered in trepanning 41 by described sample to be tested；Described thermocouple sensor is secured to the surface of described sample to be tested 5.
Further, also including the annular metalwork 2 identical with described annular permanent magnet 1 shape, described annular metalwork 2 is removably installed in the outside of described trepanning 41.
Further, the surface of described sample to be tested 5 is provided with groove 52, for installing temperature-sensing probe.
Further, also include annular fixing member 3, this annular fixing member 3 be provided with the intercommunicating pore 31 can being conducted with described trepanning 41；Described annular permanent magnet 1 is installed in the described outer rear flank of annular fixing member 3 and is installed in the outside of described trepanning 41；Described annular metalwork 2 is connected in the described outer rear flank of annular fixing member 3 and is installed in the outside of described trepanning 41.
Further, described annular fixing member 3 and clamper 6 are diamagnetic material.Described diamagnetic material is aluminum, titanium alloy etc..
Further, described sample to be tested 5 is provided with threaded joints 51, described sample to be tested 5 by this threaded joints 51 interlocking in described clamper 6.
The measuring method of the permanent magnet assay device of mangneto of the present utility model cooling contrast, comprises the following steps:
(1) described annular permanent magnet 1 is installed in the outside of described trepanning 41；
(2) sample to be tested 5 being heated to preset temperature T and be incubated, temperature retention time is t1, afterwards sample to be tested 5 is secured to described clamper 6, and stretches into described trepanning 41；
(3) described thermocouple sensor is secured to the surface of described sample to be tested 5, and is measuring time t2The temperature variations of interior measurement sample to be tested 5；
(4) annular permanent magnet 1 is taken off, annular metalwork 2 is installed in the outside of described trepanning 41, repeat step (2), (3).
Further, preset temperature T is for being not less than 300 DEG C.
Further, temperature retention time t1It is not less than 10min.
Further, described measurement time t2Determine according to initial temperature and rate of temperature fall.
Fig. 4 is that DT4C pure iron takes 500 DEG C, temperature retention time t at preset temperature T by measured by hot-wire coil assay device of the present utility model1Take 20min, measure time t2The temperature drop curve chart obtained when taking 1000s；By the curve of Fig. 3, magnetizing under state, the temperature drop speed of DT4C pure iron has substantially quickening.
Above-described embodiment is only used for further illustrating a kind of permanent magnet assay device for mangneto cooling contrast of the present utility model; but this utility model is not limited to embodiment; every any simple modification, equivalent variations and modification made above example according to technical spirit of the present utility model, each falls within the protection domain of technical solutions of the utility model.
Claims (6)
1. the permanent magnet assay device for mangneto cooling contrast, it is characterised in that include clamper, annular permanent magnet, sample to be tested, thermocouple sensor, workbench；Described workbench is provided with the trepanning turned on up and down, and described annular permanent magnet is removably installed in the outside of described trepanning, and makes the formation magnetic field, inner side of this trepanning；Described sample to be tested is removably secured to described clamper, by described clamper is matched with described trepanning, can be inserted in the magnetic field in trepanning by described sample to be tested；Described thermocouple sensor is secured to the surface of described sample to be tested.
A kind of permanent magnet assay device for mangneto cooling contrast the most according to claim 1, it is characterised in that: also including the annular metalwork identical with described annular permanent magnet shape, described annular metalwork is removably installed in the outside of described trepanning.
A kind of permanent magnet assay device for mangneto cooling contrast the most according to claim 1, it is characterised in that: the surface of described sample to be tested is provided with groove.
The most according to claim 2 a kind of for mangneto cooling contrast permanent magnet assay device, it is characterised in that: also include annular fixing member, this annular fixing member be provided with the intercommunicating pore can being conducted with described trepanning；Described annular permanent magnet is installed in the outer rear flank of described annular fixing member, is installed in the outside of described trepanning；Described annular metalwork is installed in the outer rear flank of described annular fixing member, is installed in the outside of described trepanning.
A kind of permanent magnet assay device for mangneto cooling contrast the most according to claim 4, it is characterised in that: described annular fixing member and clamper are diamagnetic material.
The most according to claim 1 a kind of for mangneto cooling contrast permanent magnet assay device, it is characterised in that: described sample to be tested is provided with threaded joints, described sample to be tested by this threaded joints interlocking in described clamper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620114951.6U CN205643217U (en) | 2016-02-04 | 2016-02-04 | A permanent magnet test device for magnetic cooling contrast |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620114951.6U CN205643217U (en) | 2016-02-04 | 2016-02-04 | A permanent magnet test device for magnetic cooling contrast |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205643217U true CN205643217U (en) | 2016-10-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620114951.6U Expired - Fee Related CN205643217U (en) | 2016-02-04 | 2016-02-04 | A permanent magnet test device for magnetic cooling contrast |
Country Status (1)
| Country | Link |
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| CN (1) | CN205643217U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105572164A (en) * | 2016-02-04 | 2016-05-11 | 华侨大学 | Permanent magnet test device and measuring method for magnetic annealing comparison |
| CN110618334A (en) * | 2019-10-12 | 2019-12-27 | 重庆工商大学 | Fault diagnosis device with anti-magnetic field signal interference structure |
-
2016
- 2016-02-04 CN CN201620114951.6U patent/CN205643217U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105572164A (en) * | 2016-02-04 | 2016-05-11 | 华侨大学 | Permanent magnet test device and measuring method for magnetic annealing comparison |
| CN105572164B (en) * | 2016-02-04 | 2019-07-09 | 华侨大学 | Permanent magnet experimental rig and measurement method for the cooling comparison of mangneto |
| CN110618334A (en) * | 2019-10-12 | 2019-12-27 | 重庆工商大学 | Fault diagnosis device with anti-magnetic field signal interference structure |
| CN110618334B (en) * | 2019-10-12 | 2021-06-15 | 重庆工商大学 | Fault diagnosis device with anti-magnetic field signal interference structure |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161012 Termination date: 20220204 |