CN108106946A - A kind of graphite workpiece high temperature tensile properties detection device and method - Google Patents
A kind of graphite workpiece high temperature tensile properties detection device and method Download PDFInfo
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- CN108106946A CN108106946A CN201711315214.8A CN201711315214A CN108106946A CN 108106946 A CN108106946 A CN 108106946A CN 201711315214 A CN201711315214 A CN 201711315214A CN 108106946 A CN108106946 A CN 108106946A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/18—Performing tests at high or low temperatures
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0017—Tensile
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
- G01N2203/0222—Temperature
- G01N2203/0226—High temperature; Heating means
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- Life Sciences & Earth Sciences (AREA)
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The present invention relates to graphite performance detection fields, it is proposed that a kind of graphite workpiece high temperature tensile properties detection device and method.The equipment includes pedestal, stent, pedestal, pressing means, mobile platform, fixture, connecting rod, incubator, heating tube and slide.The equipment has moveable heating unit, the heating unit is incubator and the heating tube being wrapped on incubator, the heating unit gives the workpiece heat fixed with fixture and keeps the temperature a period of time, then applies pulling force to workpiece, measures the tensile property of workpiece for measurement.The equipment can also measure the compression performance of workpiece, and when measuring compression performance, equipment will not heat workpiece.The tensile property that the present invention can either detect workpiece can also detect the compression performance of workpiece.
Description
Technical field
The present invention relates to graphite performance detection field more particularly to a kind of graphite workpiece high temperature tensile properties detection device and
Method.
Background technology
Graphite is a kind of crystalline carbon, and hexagonal crystal system is iron mass colour to Dark grey, and matter is soft, there is soapy feeling, electrically conductive.Change
Property torpescence is learned, it is corrosion-resistant, it is not easy to react with acid, alkali etc..Strengthen heat in air or oxygen, incendivity simultaneously generates titanium dioxide
Carbon.It can be oxidized to organic acid by strong oxidizer.With good electric conductivity.Graphite may be used as antifriction additive and lubriation material,
It can also be used to make crucible, electrode, dry cell, pencil-lead.High purity graphite can make neutron moderator on nuclear reactor, no
The requirement that same industry applies graphite is different, and on the whole, being of wide application for graphite is general, therefore demand increasingly increases
It is high.
Graphite and carbon product possess excellent performance, and application is increasingly extensive, and production capacity and benefit present a rapidly rising trend.With
The continuous popularization of application, the competition of Chinese graphite and carbon product industry is also growing more intense.It is right under the stimulation of market competition
The quality requirements of graphite also gradually step up, and the graphite of high-quality is on the market more for competitiveness.
Therefore, in order to ensure the quality of graphite, after the shaping of graphite work pieces process, it is necessary to pass through a series of detections.Due to stone
Ink is a kind of fragile material, and hole existing for inside reduces loading end when being subject to external force when being under pressure or pulling force
Product, it is easier to stress concentration occurs, with the increase of graphite hole gap rate, its tensile property can be had an impact, while also to it
Quality has an impact.A kind of detection of the graphite as high-temperature structural material, the at high temperature tensile property of graphite is graphite workpiece
An indispensable link in detection.
The content of the invention
The technical issues of the technical problem to be solved by the present invention is to detect the tensile property of graphite at high temperature.In order to solve
The technical problem, the present invention, which proposes one kind, can detect graphite workpiece tensile property device and method, specifically with as follows
What technical solution was realized：
A kind of graphite workpiece high temperature tensile properties detection device, the graphite workpiece high temperature tensile properties detection device include
Pedestal, stent, pedestal, pressing means, mobile platform, fixture, connecting rod, incubator, heating tube and slide；
For the support vertical in pedestal, the stent includes the first upright bar, the second upright bar and cross bar, first upright bar and
Second upright bar is parallel, and the end of the cross bar connects the top of the first upright bar and the top of the second upright bar respectively；
Mobile platform is equipped between first upright bar and the second upright bar, the mobile platform can move up and down；
The mobile platform is equipped with fixture, the fixture for clamping graphite workpiece, the fixture include clamp base,
Fixed chuck and movable chuck, the fixed chuck are connected with connecting rod, and the connecting rod is connected in the middle part of cross bar；
The mobile platform and connecting sliding rail in the middle part of cross bar, the slide are equipped with incubator, and the incubator is top
The hollow tube-shape of sealing, the incubator can move on slide；
Heating tube is wound on the incubator.
Workpiece for measurement is fixed on collet, is first moved down incubator, covers workpiece for measurement completely, starts heating tube and treats
Workpiece is surveyed fully to be heated, then, it is possible to carry out the stretching detection of workpiece. with haybox cooking for a period of time.
Further, the pedestal is equipped with pedestal, and the mobile platform bottom is equipped with pressing means, the pressing means and base
Seat can measure the compression performance of workpiece.Workpiece for measurement is placed on pedestal, adjusts mobile platform, pressing means is driven to transport downwards
It is dynamic, squeeze workpiece for measurement, it becomes possible to measure the compression performance of workpiece for measurement.When the stress limit of test piece, workpiece has can
It can rupture, it is therefore desirable to which emergency braking apparatus terminates compression in time when workpiece occurs broken.
Further, the fixed chuck and movable chuck have the groove of convex shape, the fixed chuck and mobile folder
Head side openings, workpiece for measurement can be put into from collet side.Workpiece for measurement is the thick intermediate thin workpiece in both ends, is put into fixture
Afterwards, thicker end is just stuck in the part that upper end is thinner in the groove of convex shape, plays fixation.Side openings
Collet, but also can just be put into workpiece for measurement without removing fixture.
Further, the upright bar is equipped with handle, and the cross bar is equipped with pulley bracket, and the handle is mounted on first
On pulley, it is connected in the first pulley with one end of connecting line, the other end of the connecting line bypasses second pulley and the 3rd
Pulley is connected on incubator, and the second pulley and the 3rd pulley are mounted on pulley bracket, and shake handle can control guarantor
Incubator moves up and down.Connecting line can be that steel wire rope etc. has some strength and the line of toughness.The structure of pulley causes control to protect
It is laborsaving and easy when incubator moves up and down.
Further, the upright bar of the mobile platform hypomere is equipped with scale.The tensile elongation of workpiece can be manually read,
It can also connect devices to on processor, DATA REASONING is carried out by sensor.
Further, a through hole is equipped at the top of the incubator, the connecting rod passes through through hole, is fixed in the middle part of cross bar.
Connecting rod is used for the fixed chuck in stationary fixture, and the incubator does not connect with connecting rod, and incubator can be along connection
Bar moves up and down.
Further, thermal insulation material is wound outside the incubator, heating tube, the heating tube are wound outside the thermal insulation material
Connect heating equipment.
Further, the graphite workpiece high temperature tensile properties detection device connecting detection unit, the detection unit are used
In setting detection parameters.Detection parameters include the size for the power that setting applies and the translational speed of mobile platform etc., thus can
To control detection process.
A kind of graphite workpiece high temperature tensile properties detection method, the described method includes：
Workpiece for measurement is clamped using fixture, adjusts collet spacing, fixed workpiece for measurement；
Shake handle control incubator moves down, and covers workpiece for measurement；
Start heating tube, heat workpiece for measurement and keep the temperature a period of time；
Control mobile platform moves down, and stretches workpiece for measurement；
Detection data are collected, detect the tensile property of workpiece for measurement.
After the translational speed of pulling force that mobile platform applies workpiece for measurement and mobile platform is set, movement can be allowed
Platform moves down, and starts to stretch workpiece for measurement.
When collecting the data of the tensile property of workpiece for measurement, sensor etc. can be used real to the tensile property of workpiece for measurement
When measure, tensile elongation can also be read by scale under mobile platform, after measurement so as to the drawing to workpiece for measurement
Stretching performance, there are one preliminary understanding.The section of workpiece for measurement, can further obtain workpiece for measurement after further analysis stretches
Tensile property related data.
Further, the equipment can also detect the compression performance of graphite workpiece, and specific detection method is as follows；
Workpiece for measurement is placed on pedestal, pedestal is made to face pressing means；
Control mobile platform moves down, and presses to workpiece for measurement；
Detection data are collected, detect the compression performance of workpiece for measurement.
Graphite workpiece heat need not be given in advance during the compression performance for measuring graphite workpiece.It is treated setting mobile platform
After surveying the pressure of workpiece application and the translational speed of mobile platform, control mobile platform moves down, and applies pressure to workpiece for measurement.
When collecting the data of the compression performance of workpiece for measurement, sensor etc. can be used real to the compression performance of workpiece for measurement
When measure, reduction length can also be read by scale under mobile platform, after measurement so as to the pressure to workpiece for measurement
There are one preliminary understanding for contracting performance.
It is of the present invention using above-mentioned technical proposal, it has the advantages that：
1) tensile property of the invention that can either detect workpiece can also detect the compression performance of workpiece；
2) the configuration of the present invention is simple is widely used, and the step of workpiece heating and detection is combined on the same device, is shortened
Technological process.
Description of the drawings
It in order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention, for those of ordinary skill in the art, without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is a kind of schematic diagram of graphite workpiece high temperature tensile properties detection device provided in an embodiment of the present invention；
Fig. 2 is a kind of fixture schematic diagram of graphite workpiece high temperature tensile properties detection device provided in an embodiment of the present invention；
Fig. 3 is a kind of incubator control group of graphite workpiece high temperature tensile properties detection device provided in an embodiment of the present invention
Part schematic diagram；
Fig. 4 is a kind of flow chart of graphite workpiece high temperature tensile properties detection method provided in an embodiment of the present invention；
Fig. 5 is a kind of flow chart of graphite workpiece compression performance detection method provided in an embodiment of the present invention；
It remarks additionally below to attached drawing：
1- stents, 2- slides, 3- connecting rods, 4- fixtures, 5- incubators, 6- handles, 7- heating tubes, 8- mobile platforms, 9-
Pressing means, 10- pedestals, 11- pedestals.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes.Obviously, described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art obtained on the premise of creative work is not made it is all its
His embodiment, belongs to the scope of protection of the invention.
In the description of the present invention, it is necessary to explanation, term " " center ", " on ", " under ", "left", "right", " vertical ",
The orientation or position relationship of the instructions such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, merely to
Convenient for the description present invention and simplify description rather than instruction or imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" the 3rd " is only used for description purpose, and it is not intended that instruction or hint relative importance.
In the description of the present invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or be integrally connected；It can
To be mechanical connection or be electrically connected；It can be directly connected, can also be indirectly connected by intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
An embodiment of the present invention provides a kind of graphite workpiece high temperature tensile properties detection device, the graphite workpiece high temperature is drawn
Stretching performance detection apparatus includes pedestal 11, stent 1, pedestal 10, pressing means 9, mobile platform 8, fixture 4, connecting rod 3, incubator
5th, heating tube 7 and slide 2；
For the support vertical in pedestal 11, the stent 1 includes the first upright bar, the second upright bar and cross bar, and described first is vertical
Bar and the second upright bar are parallel, and the end of the cross bar connects the top of the first upright bar and the top of the second upright bar respectively；
Mobile platform 8 is equipped between first upright bar and the second upright bar, the mobile platform 8 can move up and down；
The mobile platform 8 is equipped with fixture 4, and for the fixture 4 for clamping graphite workpiece, the fixture 4 includes fixture
Pedestal, fixed chuck and movable chuck, the fixed chuck and connecting rod 3 connect, and the connecting rod 3 is connected in the middle part of cross bar；
The mobile platform 8 and connecting sliding rail 2 in the middle part of cross bar, the slide 2 are equipped with incubator 5, and the incubator 5 is
The hollow tube-shape of top closure, the incubator 5 can move on slide 2；
Heating tube 7 is wound on the incubator 5.
Workpiece for measurement is fixed on collet, is first moved down incubator 5, covers workpiece for measurement completely, it is right to start heating tube 7
Workpiece for measurement is fully heated, then keeps the temperature a period of time with incubator 5, it is possible to carry out the stretching detection of workpiece.
Further, the pedestal 11 is equipped with pedestal 10, and 8 bottom of mobile platform is equipped with pressing means 9, the pressurization
Part 9 and pedestal 10 can measure the compression performance of workpiece.Workpiece for measurement is placed on pedestal 10, adjusts mobile platform 8, is driven
Pressing means 9 move downward, and squeeze workpiece for measurement, it becomes possible to measure the compression performance of workpiece for measurement.When the stress pole of test piece
In limited time, workpiece is likely to occur rupture, it is therefore desirable to which emergency braking apparatus terminates compression in time when workpiece occurs broken.
Further, the fixed chuck and movable chuck have the groove of convex shape, the fixed chuck and mobile folder
Head side openings, workpiece for measurement can be put into from collet side.Workpiece for measurement is the thick intermediate thin workpiece in both ends, is put into fixture
Afterwards, thicker end is just stuck in the part that upper end is thinner in the groove of convex shape, plays fixation.Side openings
Collet, but also can just be put into workpiece for measurement without removing fixture.
Further, the upright bar is equipped with handle 6, and the cross bar is equipped with pulley bracket, and the handle 6 is mounted on the
On one pulley, it is connected in the first pulley with one end of connecting line, the other end of the connecting line is around second pulley and the
Three pulleys are connected on incubator 5, and the second pulley and the 3rd pulley are mounted on pulley bracket, and shake handle 6 can be controlled
Incubator 5 processed moves up and down.Connecting line can be that steel wire rope etc. has some strength and the line of toughness.The structure of pulley to control
Incubator processed is laborsaving and easy when moving up and down.
Further, the upright bar of 8 hypomere of mobile platform is equipped with scale.The stretching that workpiece can manually be read is grown
Degree, can also connect devices on data processor, and the real-time measurement of data is carried out by sensor, then is recorded by processor
Handling result.
Further, 5 top of incubator is equipped with a through hole, and the connecting rod 3 passes through through hole, is fixed in cross bar
Portion.Connecting rod is used for the fixed chuck in stationary fixture, and the incubator 5 does not connect with connecting rod 3, and incubator 5 being capable of edge
Connecting rod 3 to move up and down.
Further, thermal insulation material is wound outside the incubator 5, heating tube 7, the heating are wound outside the thermal insulation material
Pipe 7 connects heating equipment.
Further, the graphite workpiece high temperature tensile properties detection device connecting detection unit, the detection unit are used
In setting detection parameters.Detection parameters include the size for the power that setting applies and the translational speed of mobile platform etc., thus can
To control detection process.
An embodiment of the present invention provides a kind of graphite workpiece high temperature tensile properties detection method, the described method includes：
S1. workpiece for measurement is clamped using fixture 4, adjusts collet spacing, fixed workpiece for measurement.
When fixture 4 is used to clamp workpiece for measurement, the collet of fixture 4 is therefore side openings need not take out fixture 4
Workpiece for measurement can be just put into.Mobile platform can slightly be adjusted so that workpiece for measurement can be just stuck in fixture 4, fixed
Firmly workpiece for measurement.
S2. shake handle control incubator 5 moves down, and covers workpiece for measurement.
Shake handle, the connecting line that will be involved in are released, and incubator 5 can be caused to move down, since incubator 5 is arranged on slide
On 2, therefore incubator 5 can be moved down along slide 2, until covering workpiece for measurement completely.Incubator 5 is surrounded by heat preservation
Material is wrapped heating tube 7 on thermal insulation material.After heating tube 7 stops heating, incubator 5 can just start to workpiece for measurement
Heat preservation.
S3. start heating tube 7, heat workpiece for measurement and keep the temperature a period of time.
Start heating tube 7, heating tube 7 is wrapped in outside incubator 5, workpiece for measurement is heated.When being heated to need
Temperature when, stop heating, the position of incubator 5 need not be moved, incubator 5 can immediately begin to protect workpiece for measurement
Temperature.
S4. control mobile platform 8 moves down, and stretches workpiece for measurement.
After the translational speed of pulling force that mobile platform 8 applies workpiece for measurement and mobile platform 8 is set, shifting can be allowed
Moving platform 8 moves down, and starts to stretch workpiece for measurement.
S5. detection data are collected, detect the tensile property of workpiece for measurement.
When collecting the data of the tensile property of workpiece for measurement, sensor etc. can be used real to the tensile property of workpiece for measurement
When measure, tensile elongation can also be read by scale under mobile platform, after measurement so as to the drawing to workpiece for measurement
Stretching performance, there are one preliminary understanding.The section of workpiece for measurement, can further obtain workpiece for measurement after further analysis stretches
Tensile property related data.
The embodiment of the present invention additionally provides a kind of method for detecting graphite workpiece compression performance, and the equipment can also detect
The compression performance of graphite workpiece, specific detection method are as follows；
S01. workpiece for measurement is placed on pedestal 10, pedestal 10 is made to face pressing means 9.
Pedestal can be set to movable base, and add fixing piece, fixed workpiece for measurement and pedestal 10.Base can be adjusted
Seat enables pedestal to be just directed at pressing means 9, prevents from being not allowed because offset causes the compression performance of workpiece for measurement to measure, even
It is that workpiece for measurement such as flies out at the consequences in pressure process.
S02. control mobile platform 8 moves down, and presses to workpiece for measurement；
Graphite workpiece heat need not be given in advance during the compression performance for measuring graphite workpiece.Setting, mobile platform 8 is right
After pressure and the translational speed of mobile platform that workpiece for measurement applies, control mobile platform 8 moves down, and workpiece for measurement is applied and is pressed
Power.
S03. detection data are collected, detect the compression performance of workpiece for measurement.
When collecting the data of the compression performance of workpiece for measurement, sensor etc. can be used real to the compression performance of workpiece for measurement
When measure, reduction length can also be read by scale under mobile platform, after measurement so as to the pressure to workpiece for measurement
There are one preliminary understanding for contracting performance.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention spirit and
Within principle, any modifications, equivalent replacements and improvements are made should all be included in the protection scope of the present invention.
Claims (10)
- A kind of 1. graphite workpiece high temperature tensile properties detection device, which is characterized in that the graphite workpiece high temperature tensile properties inspection Measurement equipment includes pedestal (11), stent (1), pedestal (10), pressing means, mobile platform (8), fixture (4), connecting rod (3), heat preservation Case (5), heating tube (7) and slide (2)；The support vertical is set in pedestal (11), and the stent (1) includes the first upright bar, the second upright bar and cross bar, and described the One upright bar is parallel with the second upright bar, and the end of the cross bar connects the top of the first upright bar and the top of the second upright bar respectively；Mobile platform (8) is equipped between first upright bar and the second upright bar, the mobile platform (8) can move up and down；The mobile platform (8) is equipped with fixture (4), and for clamping graphite workpiece, the fixture (4) includes the fixture (4) Clamp base, fixed chuck and movable chuck, the fixed chuck and connecting rod (3) connection, the connecting rod (3) are connected to horizontal stroke In the middle part of bar；The mobile platform (8) is equipped with incubator (5), the heat preservation with connecting sliding rail (2) in the middle part of cross bar, the slide (2) Case (5) is the hollow tube-shape of top closure, and the incubator (5) can move on slide (2)；Heating tube (7) is wound on the incubator (5).
- A kind of 2. graphite workpiece high temperature tensile properties detection device according to claim 1, which is characterized in that the pedestal (11) pedestal (10) is equipped with, mobile platform (8) bottom is equipped with pressing means (9), the pressing means (9) and pedestal (10) energy Enough measure the compression performance of workpiece.
- A kind of 3. graphite workpiece high temperature tensile properties detection device according to claim 1, which is characterized in that the fixation Collet and movable chuck have the groove of convex shape, the fixed chuck and a movable chuck side openings, and workpiece for measurement can be from Collet side is put into.
- A kind of 4. graphite workpiece high temperature tensile properties detection device according to claim 1, which is characterized in that the upright bar Handle (6) is equipped with, the cross bar is equipped with pulley bracket, and the handle (6) is mounted in first pulley, the first pulley Upper to be connected with one end of connecting line, the other end of the connecting line is connected to incubator (5) around second pulley and the 3rd pulley On, the second pulley and the 3rd pulley are mounted on pulley bracket, and shake handle (6) can control to be moved down on incubator (5) It is dynamic.
- A kind of 5. graphite workpiece high temperature tensile properties detection device according to claim 1, which is characterized in that the movement The upright bar of platform (8) hypomere is equipped with scale.
- A kind of 6. graphite workpiece high temperature tensile properties detection device according to claim 1, which is characterized in that the heat preservation A through hole is equipped at the top of case (5), the connecting rod (3) passes through through hole, is fixed in the middle part of cross bar.
- A kind of 7. graphite workpiece high temperature tensile properties detection device according to claim 1, which is characterized in that the heat preservation Case (5) winds thermal insulation material outside, and heating tube (7) is wound outside the thermal insulation material, and the heating tube (7) connects heating equipment.
- 8. a kind of graphite workpiece high temperature tensile properties detection device according to claim 1 to 7 any one, feature exist In the graphite workpiece high temperature tensile properties detection device connecting detection unit, the detection unit is used to set detection parameters.
- 9. a kind of graphite workpiece high temperature tensile properties detection method, which is characterized in that the described method includes：Workpiece for measurement is clamped using fixture (4), adjusts collet spacing, fixed workpiece for measurement；Shake handle control incubator (5) moves down, and covers workpiece for measurement；Start heating tube (7), heat workpiece for measurement and keep the temperature a period of time；Control mobile platform (8) moves down, and stretches workpiece for measurement；Detection data are collected, detect the tensile property of workpiece for measurement.
- 10. a kind of detection method of graphite workpiece compression performance, which is characterized in thatWorkpiece for measurement is placed on pedestal (10), pedestal (10) is made to face pressing means (9)；Control mobile platform (8) moves down, and presses to workpiece for measurement；Detection data are collected, detect the compression performance of workpiece for measurement.
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| CN109855981A (en) * | 2019-01-28 | 2019-06-07 | 辽宁科技大学 | A kind of covering slag calorific intensity test device and test method |
| CN110553932A (en) * | 2019-08-22 | 2019-12-10 | 华中科技大学 | A low strain rate tensile test device for a composite material plate |
| CN110779816A (en) * | 2019-11-12 | 2020-02-11 | 磐翼信息科技(上海)有限公司 | Detection device for detecting flexible pipeline |
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Application publication date: 20180601 |