CN110426146A - A kind of heating device for marmem constraint restoring force test - Google Patents
A kind of heating device for marmem constraint restoring force test Download PDFInfo
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- CN110426146A CN110426146A CN201910696426.8A CN201910696426A CN110426146A CN 110426146 A CN110426146 A CN 110426146A CN 201910696426 A CN201910696426 A CN 201910696426A CN 110426146 A CN110426146 A CN 110426146A
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- insulating layer
- marmem
- cylinder
- heating wire
- combined type
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 95
- 238000012360 testing method Methods 0.000 title claims abstract description 33
- 239000000463 material Substances 0.000 claims abstract description 44
- 238000003756 stirring Methods 0.000 claims abstract description 31
- 230000002093 peripheral effect Effects 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims description 3
- 230000013011 mating Effects 0.000 claims description 2
- 238000012545 processing Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 9
- 238000011084 recovery Methods 0.000 description 4
- 238000004321 preservation Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229910010380 TiNi Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 229910000734 martensite Inorganic materials 0.000 description 1
- 230000003446 memory effect Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229910001285 shape-memory alloy Inorganic materials 0.000 description 1
- 210000003518 stress fiber Anatomy 0.000 description 1
- 238000004154 testing of material Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Devices For Use In Laboratory Experiments (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The invention discloses a kind of heating devices for marmem constraint restoring force test, the one side of first insulating layer is connected with an end face of an end face of Gas Stirring equipment and insulating heat-conductive cylinder, the one side of second insulating layer is connected with the other end of the other end of Gas Stirring equipment and insulating heat-conductive cylinder, the outer peripheral surface of the outer peripheral surface of first insulating layer and the second insulating layer is tightly connected with the inner wall of heating wire fixed cylinder, first combined type silk material anchorage is fixed on the another side of the first insulating layer, second combined type silk material anchorage is fixed on the another side of the second insulating layer, temperature sensor is located at the inside of insulating heat-conductive cylinder, external power supply is connected with heating wire, the output end of controller and temperature sensor, the control terminal of Gas Stirring equipment and the control terminal of external power supply are connected；The device can be realized the heating to marmem, and have the advantages that structure is simple, processing and fabricating cost is low and the controllable rate of heat addition.
Description
Technical field
The invention belongs to marmem mechanics performance testing technology fields, are related to one kind and are used for marmem about
The heating device of beam restoring force test.
Background technique
Marmem as novel intelligent drive material, because it is distinctive can reverse martensitic transformation, heating power load make
Shape memory effect is shown under.When constraint there are the marmem both ends of plastic pre-strain, and it is heated to certain spy
Determine on temperature, inside will generate recovery stress.In recent years, marmem is as intelligent driver in concrete active
The engineering structures fields such as restrained reinforcement, intelligent prestress structure, pre-stress fibre and active/semi- active control have obtained extensively
Application.
The constraint resilience of marmem is its mostly important mechanics parameter in practical engineering applications.Mesh
Before, marmem constrains restoring force and tests there are mainly three types of hot triggering methods: (1) document " marmem and its intelligence
Can concrete structure research " employed in hot gas to the universal testing machine that blows carry the hot triggering method heated in temperature control box；(2)
The hot triggering method of electrified regulation employed in document " TiNi marmem is studied in the driveability under current excitation "；
(3) remember employed in document " shape-memory alloy wire actuator new electrically heating method and its modeling and experimental study " in shape
The mode for recalling alloy wire surface wrap heating wire (enameled wire) heats；But the equal existing defects of above-mentioned three kinds of modes, for method 1,
The silk material collet and metal connecting tube expanded by heating protruded into temperature control box will affect marmem constraint restoring force test essence
Degree, and this method heating and cooling efficiency are all very low.Previous work shows: when target temperature is set as 100 DEG C, considering temperature
The influence of silk material collet and metal connecting tube in case is spent, primary completely heated up cooling cycle spends the time to be up to 4h or more.For
Method 2, electrified regulation can not directly control silk material surface temperature, and different electric currents applies scheme and replys marmem
Power-temperature hysteresis curve shape influences very big.For method 3, artificial winding heating wire will cause silk material surface temperature unevenness, and
And the heating wire heating rate directly contacted with marmem test specimen is too fast, this all can generate biggish shadow to measuring accuracy
It rings.
Summary of the invention
It is an object of the invention to overcome the above-mentioned prior art, provide a kind of for marmem constraint
The heating device of restoring force test, the device can be realized the heating to marmem, and, processing system simple with structure
The advantages of making the at low cost and controllable rate of heat addition.
In order to achieve the above objectives, the heating device packet of the present invention for marmem constraint restoring force test
Include heating equipment, the first insulating layer, the second insulating layer, the first combined type silk material anchorage, the second combined type silk material anchorage, external electrical
Source, controller and temperature sensor, the heating equipment include Gas Stirring equipment, insulating heat-conductive cylinder, heating wire fixed cylinder, absolutely
Edge heat-preservation cylinder and heating wire；
Gas Stirring equipment, insulating heat-conductive cylinder, heating wire fixed cylinder and thermal insulating cylinder are hollow structure, Gas Stirring
Equipment, insulating heat-conductive cylinder, heating wire fixed cylinder and thermal insulating cylinder set gradually fixation from inside to outside, wherein heating wire is located at
In heating wire fixed cylinder；
The one side of first insulating layer is connected with an end face of an end face of Gas Stirring equipment and insulating heat-conductive cylinder, the
The one side of two insulating layers is connected with the other end of the other end of Gas Stirring equipment and insulating heat-conductive cylinder, the first heat preservation
The outer peripheral surface of layer and the outer peripheral surface of the second insulating layer are tightly connected with the inner wall of heating wire fixed cylinder, the first combined type silk material anchor
Tool is fixed on the another side of the first insulating layer, and the second combined type silk material anchorage is fixed on the another side of the second insulating layer
On, temperature sensor is located at the inside of insulating heat-conductive cylinder, and external power supply is connected with heating wire, controller and temperature sensor
The control terminal of output end, the control terminal of Gas Stirring equipment and external power supply is connected；
One end of marmem is fixed on the first combined type silk material anchorage, and the other end of marmem is successively
It is fixed on the second combined type silk material anchorage across the first insulating layer, Gas Stirring equipment and the second insulating layer.
The first combined type silk material anchorage and the second combined type silk material anchorage include postive stop baffle, fixing seat, press
Nut, truncated cone-shaped intermediate plate and anchor cup, wherein press nut and be fixed in fixing seat, anchor cup be socketed on press in nut and with it is tight
Nut thread connection is pressed, the end of marmem is connected with truncated cone-shaped intermediate plate, and truncated cone-shaped intermediate plate matches company with anchor cup
It connects, the end face for pressing nut is in contact with the one side of postive stop baffle, and postive stop baffle is another in the first combined type silk material anchorage
Side is connected with the end face of the lateral surface of the first insulating layer and heating wire fixed cylinder, limiting block in the second combined type silk material anchorage
The another side of plate is connected with the inner wall of the lateral surface of the second insulating layer and heating wire fixed cylinder.
Pass through card between thermal insulating cylinder and heating wire fixed cylinder and between insulating heat-conductive cylinder and heating wire fixed cylinder
Button is connected.
Heating wire is evenly spaced in heating wire fixed cylinder in lattice-shaped.
Gas Stirring equipment is fixed by the bracket on the inner wall of insulating heat-conductive cylinder.
It is provided with the sensor for placing temperature sensor on the side wall of insulating heat-conductive cylinder and places mouth.
Slide opening is provided on the lateral surface of second insulating layer, the second insulating layer and postive stop baffle connected to it surround sealing
Inner space.
The engaging lug for being connected with external universal testing machine upper grip is provided in fixing seat.
The invention has the following advantages:
Heating device of the present invention for marmem constraint restoring force test passes through when specific operation
Controller, temperature sensor and heating wire match the heating for realizing marmem, reply for marmem constraint
Power test provides constant hot environment, while realizing the controllable of heating rate, solves common Material Testing Machine and does not have
The problem of hot environment, in addition, being carried out in the present invention by air of the Gas Stirring equipment to marmem heating environment
Stirring, so that the uniform temperature fields of marmem heating environment are distributed, and structure is simple and convenient to operate, processing cost
It is low, it is practical flexible.
Detailed description of the invention
Fig. 1 is elevation of the invention；
Fig. 2 is sectional view of the invention；
Fig. 3 is the structural schematic diagram of the first combined type silk material anchorage 02；
Fig. 4 is that universal testing machine cooperates the heating equipment 01 to use figure；
Fig. 5 is to test the change curve of the present invention that marmem 002 constrains recovery stress using equipment shown in Fig. 4
Figure.
Wherein, 1 it is thermal insulating cylinder, 2 be heating wire fixed cylinder, 3 be insulating heat-conductive cylinder, 4 be Gas Stirring equipment, 5 is
Buckle, 6 be heating wire, 7 be bracket, 8 be sensor placement mouth, 9 be temperature sensor, 10 be the first insulating layer, 11 be limit
Baffle, 12 be slide opening, 13 be electric wire entrance, 14 be engaging lug, 15 be truncated cone-shaped intermediate plate, 16 be anchor cup, 17 for press nut,
01 it is heating equipment, 02 be the first combined type silk material anchorage, 03 be displacement sensor, 04 be 200kg load sensor, 05 is folder
Head, 06 be controller, 07 be computer, 001 be marmem heating device, 002 be marmem.
Specific embodiment
The invention will be described in further detail with reference to the accompanying drawing:
With reference to Fig. 1, the heating device of the present invention for marmem constraint restoring force test includes heating
Equipment 01, the first insulating layer 10, the second insulating layer, the first combined type silk material anchorage 02, the second combined type silk material anchorage, external electrical
Source, controller 06 and temperature sensor 9, the heating equipment 01 are solid including Gas Stirring equipment 4, insulating heat-conductive cylinder 3, heating wire
Safety barrel 2, thermal insulating cylinder 1 and heating wire 6；Gas Stirring equipment 4, insulating heat-conductive cylinder 3, heating wire fixed cylinder 2 and thermal insulating
Cylinder 1 is hollow structure, and Gas Stirring equipment 4, insulating heat-conductive cylinder 3, heating wire fixed cylinder 2 and thermal insulating cylinder 1 are from inside to outside
Set gradually fixation, wherein heating wire 6 is located in heating wire fixed cylinder 2；The one side of first insulating layer 10 is set with Gas Stirring
Standby 4 end face and an end face of insulating heat-conductive cylinder 3 are connected, and the one side of the second insulating layer is another with Gas Stirring equipment 4
One end face and the other end of insulating heat-conductive cylinder 3 are connected, the outer peripheral surface of the first insulating layer 10 and the outer peripheral surface of the second insulating layer
It is tightly connected with the inner wall of heating wire fixed cylinder 2, the first combined type silk material anchorage 02 is fixed on the another of the first insulating layer 10
On side, the second combined type silk material anchorage is fixed on the another side of the second insulating layer, and temperature sensor 9 is located at insulating heat-conductive
The inside of cylinder 3, external power supply are connected with heating wire 6, the output end of controller 06 and temperature sensor 9, Gas Stirring equipment 4
Control terminal and the control terminal of external power supply be connected；The first combined type silk material anchor is fixed in one end of marmem 002
On tool 02, the other end of marmem 002 sequentially passes through the first insulating layer 10, Gas Stirring equipment 4 and the second insulating layer
It is fixed on the second combined type silk material anchorage.
Specifically, the first combined type silk material anchorage 02 and the second combined type silk material anchorage include limit with reference to Fig. 3
Baffle 11, fixing seat press nut 17, truncated cone-shaped intermediate plate 15 and anchor cup 16, wherein and press nut 17 and is fixed in fixing seat,
Anchor cup 16, which is socketed on, to be pressed in nut 17 and is threadedly coupled with nut 17 is pressed, the end of marmem 002 and truncated cone-shaped
Intermediate plate 15 is connected, and truncated cone-shaped intermediate plate 15 and anchor cup 16 are in mating connection, presses the end face and the one of postive stop baffle 11 of nut 17
Side is in contact, in the first combined type silk material anchorage 02 another side of postive stop baffle 11 and the lateral surface of the first insulating layer 10 and
The end face of heating wire fixed cylinder 2 is connected, the another side of postive stop baffle 11 and the second heat preservation in the second combined type silk material anchorage
The lateral surface of layer and the inner wall of heating wire fixed cylinder 2 are connected；Slide opening 12 is provided on the lateral surface of second insulating layer, second protects
Warm layer and postive stop baffle 11 connected to it surround the inner space of sealing；Be provided in fixing seat for external universal material
The engaging lug 14 that testing machine upper grip 05 is connected.
It should be noted that between thermal insulating cylinder 1 and heating wire fixed cylinder 2 and insulating heat-conductive cylinder 3 and heating wire are solid
It is connected by buckle 5 between safety barrel 2；Heating wire 6 is evenly spaced in heating wire fixed cylinder 2 in lattice-shaped；Gas Stirring
Equipment 4 is fixed on the inner wall of insulating heat-conductive cylinder 3 by bracket 7；It is provided on the side wall of insulating heat-conductive cylinder 3 for placing temperature
The sensor of sensor 9 places mouth 8.
In addition, first insulating layer 10, the second insulating layer, the first combined type silk material anchorage 02, the 2nd combined type silk
Be all provided with hole at the center of material anchorage and postive stop baffle 11, for marmem 002 fixation and pass through；Thermal insulating
Cylinder 1, insulating heat-conductive cylinder 3, heating wire fixed cylinder 2 are all provided with live wire entrance 13, stir for external equipment and sensor and gas
Mixing equipment 4 is connected.
The temperature sensor 9 is used to test the temperature inside insulating heat-conductive cylinder 3, temperature sensor 9 and 06 phase of controller
Even, the heating power of heating wire 6 is controlled by the temperature information of its acquisition, and then controls marmem of the present invention
The heating rate of heating device 001.
The position contacted on truncated cone-shaped intermediate plate 15 with marmem 002 is coated with heat-barrier material, to prevent combined type
Silk material anchorage thermally expands the influence to restoring force measuring accuracy.
Fig. 4 is the use figure that universal testing machine cooperates the heating equipment 01, illustrates the heating device in conjunction with Fig. 4
Cooperate the course of work of the test constraint restoring force of marmem 002 with universal testing machine:
1) simple tension is carried out to marmem 002 at room temperature, be stretched at default elongation strain value；
2) after being stretched to default strain value, unloading tensile stress to 5MPa and keeps collet 05 motionless, constant to obtain
Deflection；
3) starting heating device heats marmem 002, stops heating after reaching target temperature, natural
It is cooled to room temperature, to obtain constraint recovery stress-humid test curve；
06 temperature collection information of whole opening controller is tested, Fig. 5 is using the marmem at the device to test
002 constraint recovery stress change curve.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, those skilled in the art
Member can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as at this
All by the protection of Patent Law in the scope of the claims of invention.
Claims (8)
1. a kind of heating device for marmem constraint restoring force test, which is characterized in that including heating equipment
(01), the first insulating layer (10), the second insulating layer, the first combined type silk material anchorage (02), the second combined type silk material anchorage, outside
Power supply, controller (06) and temperature sensor (9), the heating equipment (01) include Gas Stirring equipment (4), insulating heat-conductive cylinder
(3), heating wire fixed cylinder (2), thermal insulating cylinder (1) and heating wire (6)；
Gas Stirring equipment (4), insulating heat-conductive cylinder (3), heating wire fixed cylinder (2) and thermal insulating cylinder (1) are hollow structure,
Gas Stirring equipment (4), insulating heat-conductive cylinder (3), heating wire fixed cylinder (2) and thermal insulating cylinder (1) are set gradually from inside to outside
It is fixed, wherein heating wire (6) is located in heating wire fixed cylinder (2)；
The one side of first insulating layer (10) and an end face of Gas Stirring equipment (4) and an end face phase of insulating heat-conductive cylinder (3)
Connection, the other end phase of the one side of the second insulating layer and the other end of Gas Stirring equipment (4) and insulating heat-conductive cylinder (3)
Connection, the outer peripheral surface of the first insulating layer (10) and the outer peripheral surface of the second insulating layer are sealed with the inner wall of heating wire fixed cylinder (2)
Connection, the first combined type silk material anchorage (02) are fixed on the another side of the first insulating layer (10), the second combined type silk material anchor
Tool is fixed on the another side of the second insulating layer, and temperature sensor (9) is located at the inside of insulating heat-conductive cylinder (3), external power supply
Be connected with heating wire (6), the output end of controller (06) and temperature sensor (9), the control terminal of Gas Stirring equipment (4) and
The control terminal of external power supply is connected；
One end of marmem (002) is fixed on the first combined type silk material anchorage (02), marmem (002)
The other end sequentially passes through the first insulating layer (10), Gas Stirring equipment (4) and the second insulating layer and is fixed on the second combined type silk material
On anchorage.
2. the heating device according to claim 1 for marmem constraint restoring force test, which is characterized in that
The first combined type silk material anchorage (02) and the second combined type silk material anchorage include postive stop baffle (11), fixing seat, press
Nut (17), truncated cone-shaped intermediate plate (15) and anchor cup (16), wherein press nut (17) and is fixed in fixing seat, anchor cup (16) set
It is connected to and presses in nut (17) and be threadedly coupled with nut (17) is pressed, the end of marmem (002) and rotary table clevis
Piece (15) is connected, and truncated cone-shaped intermediate plate (15) and anchor cup (16) are in mating connection, presses end face and the postive stop baffle of nut (17)
(11) one side is in contact, the another side of postive stop baffle (11) and the first insulating layer in the first combined type silk material anchorage (02)
(10) end face of lateral surface and heating wire fixed cylinder (2) is connected, postive stop baffle (11) in the second combined type silk material anchorage
Another side is connected with the inner wall of the lateral surface of the second insulating layer and heating wire fixed cylinder (2).
3. the heating device according to claim 1 for marmem constraint restoring force test, which is characterized in that
Lead between thermal insulating cylinder (1) and heating wire fixed cylinder (2) and between insulating heat-conductive cylinder (3) and heating wire fixed cylinder (2)
Buckle (5) is crossed to be connected.
4. the heating device according to claim 1 for marmem constraint restoring force test, which is characterized in that
Heating wire (6) is evenly spaced in heating wire fixed cylinder (2) in lattice-shaped.
5. the heating device according to claim 1 for marmem constraint restoring force test, which is characterized in that
Gas Stirring equipment (4) is fixed on the inner wall of insulating heat-conductive cylinder (3) by bracket (7).
6. the heating device according to claim 1 for marmem constraint restoring force test, which is characterized in that
It is provided with the sensor for placing temperature sensor (9) on the side wall of insulating heat-conductive cylinder (3) and places mouth (8).
7. the heating device according to claim 2 for marmem constraint restoring force test, which is characterized in that
It is provided on the lateral surface of second insulating layer slide opening (12), the second insulating layer and postive stop baffle connected to it (11) surround sealing
Inner space.
8. the heating device according to claim 2 for marmem constraint restoring force test, which is characterized in that
The engaging lug (14) for being connected with external universal testing machine upper grip (05) is provided in fixing seat.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN2019211153757 | 2019-07-16 | ||
| CN201921115375 | 2019-07-16 |
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| CN201910696426.8A Pending CN110426146A (en) | 2019-07-16 | 2019-07-30 | A kind of heating device for marmem constraint restoring force test |
| CN201921217877.0U Active CN210108579U (en) | 2019-07-16 | 2019-07-30 | Heating device for testing restraining restoring force of shape memory alloy |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112697834A (en) * | 2020-12-06 | 2021-04-23 | 西安长峰机电研究所 | Method and system for testing restoring force performance of shape memory alloy |
| CN113202870A (en) * | 2021-05-06 | 2021-08-03 | 吉林大学 | Solid lubricating material supply device for oil shortage protection of sliding bearing |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110426146A (en) * | 2019-07-16 | 2019-11-08 | 西安建筑科技大学 | A kind of heating device for marmem constraint restoring force test |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113202870A (en) * | 2021-05-06 | 2021-08-03 | 吉林大学 | Solid lubricating material supply device for oil shortage protection of sliding bearing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN210108579U (en) | 2020-02-21 |
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