CN108344636A - A kind of detection method and device of the compression failure temperature of material - Google Patents
A kind of detection method and device of the compression failure temperature of material Download PDFInfo
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- CN108344636A CN108344636A CN201810116075.4A CN201810116075A CN108344636A CN 108344636 A CN108344636 A CN 108344636A CN 201810116075 A CN201810116075 A CN 201810116075A CN 108344636 A CN108344636 A CN 108344636A
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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
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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
- G01N2203/0019—Compressive
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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
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
- G01N2203/0222—Temperature
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
A kind of detection method and device of the compression failure temperature of material, method are：(1) it by installation heating ring on multiple and different positions of material to be detected, heats and thermal insulation layer is set between ring and material to be detected；It is then placed in compression performance test machine, fixes to clamp；(2) it is heated to heating ring energization, the difference part of material to be detected is made to be heated to different temperatures；(3) compression test is carried out to material to be detected by compression performance test machine, according to destruction position occurs first, determines compression failure temperature.Device includes fixture, temperature-controlled cabinet and heating device, and wherein heating device is made of multiple heating rings, thermocouple and thermal insulation layer, and each heating is equipped with resistance wire and is connect with temperature-controlled cabinet.The device of the invention and method quickly detect temperature when material compression failure using a workpiece, improve detection efficiency.
Description
Technical field
The invention belongs to measuring for materials field, more particularly to the detection method of the compression failure temperature of a kind of material and
Device.
Background technology
There are a large amount of composite material classes or laminated material class workpiece in aerospace field, due to by its internal performance
Limitation, generally existing is affected by temperature larger disadvantage；However in workpiece process, necessarily influenced by heating power,
And the cutting heat generated in process may make its performance failure.
With the continuous improvement of processing temperature, performance of the workpiece at Working position continuously decreases, at this time in cutting masterpiece
It is easy to cause under at Working position and layering equivalent damage occurs, to seriously reduce the processing quality of workpiece；Therefore it needs stringent
Processing temperature is controlled, the fail temperature of material is made it below.
In order to detect the temperature of material damage, it usually needs the method for using compression test, it is specific as follows：
(1) it by after workpiece heat to certain temperature, then is fixed on compression performance detection experimental rig and is tested,
Repeatedly obtain the fail temperature of material；
(2) workpiece is fixed on compression performance detection experimental rig, then by workpiece heat to certain temperature and kept the temperature, so
After carry out compression test, repeatedly obtain the fail temperature of material.
But two methods only to a workpiece heat to certain temperature when, measure material compression failure temperature, test
The multiple workpiece of early-stage preparations are needed to be tested respectively in the process.Not only cause in this way human and material resources, financial resources a large amount of waves
Take, also increase workload, reduce efficiency, especially in some cases, piece count is limited or the price is very expensive, leads
Cause experiment is difficult to carry out or cost is excessively high.
Invention content
To solve the above-mentioned problems, the present invention provides a kind of detection method and device of the compression failure temperature of material,
Its feature is that a substantially temperature when workpiece quickly detects material compression failure may be used, has both saved resource, reduced
Cost, and improve efficiency.
The method of the present invention carries out according to the following steps：
(1) standard size sample is made in material to be detected, pacified on axial multiple and different positions of material to be detected
Dress heating ring, is arranged thermal insulation layer between heating ring and material to be detected；It is then placed in compression performance test machine, passes through positioning
Clamping device makes material both ends to be detected fix to clamp；
(2) it is heated to heating ring energization, is heated up after so that each part of material to be detected is heated, adjust heating circumstance temperature
Degree makes the difference part of material to be detected be heated to different temperatures；
(3) after the difference part of material to be detected respectively reaches different set temperatures, pass through compression performance test machine
Compression test is carried out to material to be detected, according to the position that material to be detected destroys first, the heating ring of the corresponding position
Set temperature when heated, as the compression failure temperature of the material to be detected.
In the above method, the material to be detected is composite material, titanium alloy, high temperature alloy or stainless steel.
In the above method, the standard size, which is subject to, coordinates compression performance test machine.
Above-mentioned thermal insulation layer is fiber enhanced plastic plate, is pasted onto on material to be detected.
It is copper that above-mentioned heating ring, which selects material, and the inner passage size for heating ring is measured and monitored the growth of standing timber with the to be checked of thermal insulation layer is pasted with
Material external dimensions matches.
Setting heating loop resistance silk, heats resistance of the loop resistance silk by conducting wire and temperature-controlled cabinet on above-mentioned heating ring
Silk connection carries out electrified regulation to heating ring by temperature-controlled cabinet, and then controls the local temperature of material to be detected.
The detection device of the compression failure temperature of the material of the present invention includes fixture 7, temperature-controlled cabinet 6 and heating device,
By multiple heating rings 1, multiple thermocouples and multiple thermal insulation layers 8 form wherein heating device, it is each heat ring 1 be sleeved on one it is heat-insulated
On layer 8, each thermal insulation layer 8 is wrapped in outside material 2 to be detected, and 5 heating rings 1 and thermal insulation layer 8 are distributed in material 2 to be detected
Axial 5 different locations, and one thermocouple of assembly is used to measure 2 local temperature of material to be detected on each position；Respectively plus
Hot ring 1 is equipped with heating loop resistance silk 3, and heating loop resistance silk 3 is connect by conducting wire 4 with the resistance wire 5 of temperature-controlled cabinet, temperature control
The resistance wire 5 of case processed is assemblied on temperature-controlled cabinet 6；Fixture 7 is assemblied in the both ends of material 2 to be detected.
In above-mentioned apparatus, thermocouple is assembled together by conducting wire and temperature-controlled cabinet 6,1 position of control heating ring
Material to be detected 2 local temperature.
In the prior art, a kind of detection method of the compression failure temperature of material is tested, needs early-stage preparations multiple
Workpiece, and need to be respectively heated, repeat test of many times；The device of the invention and method can be by workpiece
Different parts are heated to different temperatures, i.e., temperature when material compression failure are quickly detected using a workpiece, so not only
The time is substantially reduced, and saves material, improves efficiency；The present invention can install the same workpiece multiple add simultaneously
Hot ring, and the size of heating ring and temperature can change, and can more easily control the temperature of workpiece each section in this way,
Mixing temperature field is formed, so as to carry out the research of a variety of mixing temperatures rupture process of material or destructive characteristics off field.
Description of the drawings
Fig. 1 is a kind of structure of the detecting device schematic diagram of the compression failure temperature of material in the embodiment of the present invention；
Fig. 2 is the schematic diagram of heating device figure in the embodiment of the present invention；
Fig. 3 is the upward view of Fig. 2；
Fig. 4 is the cross-sectional view of Fig. 2；
In figure, 1- heats ring, 2- materials to be detected, and 3- heats the resistance wire of ring, 4- conducting wires, the resistance of 5- temperature-controlled cabinets
Silk, 6- temperature-controlled cabinets, 7- fixtures, 8- thermal insulation layers.
Specific implementation mode
The positioning clamping device used in the embodiment of the present invention is fixture.
Material to be detected in the embodiment of the present invention is carbon fibre composite, successively by carbon fiber and epoxide resin material
It is laid with.
In carbon fibre composite in the embodiment of the present invention, the fiber ply sequence of carbon fiber sheet is：[+45°/-
45 °] 2S, the average diameter of every carbon fiber is 5 μm, and carbon fiber volume ratio is 60 ± 5%.
Plays size of the embodiment of the present invention is 250 × 25 × 2.0mm.
Compression test is with reference to GB7559-1987 fiber reinforcement type laminate compressive strength test methods in the embodiment of the present invention
It carries out；And being required in being tested with reference to ASTM--D5961 standard specifications.
In the embodiment of the present invention after compression test, the obtained test data of record, according to the side of GB7559-1987
Method calculates the data obtained, and the changing rule of curve is depicted according to load-displacement diagram, passes through from initial data
Formula calculating acquires maximum value load and maximum value compression stress.
The load amount of feeding in the embodiment of the present invention when compression test is 25mm/min, and compression performance test machine uses
CSS88100 electronic universal testers, range are 0~100KN, and initial temperature is 20 DEG C.
Ring is respectively heated in the embodiment of the present invention to be uniformly distributed in the axial direction of material to be detected.
Respectively heated in the embodiment of the present invention set temperature of ring by the temperature difference of two neighboring heating ring be 5~30 DEG C (when
Temperature is omitted when being room temperature).
In the method for the present invention, the temperature difference of adjacent heating ring is designed according to actual needs, when needing gradual exact value,
Temperature difference higher value is first set, the mode of temperature difference is then gradually reduced with same material, until the required accuracy.
The structure of the detecting device of the compression failure temperature of material is as shown in Figure 1, including fixture 7, temperature in the embodiment of the present invention
Control cabinet 6 and heating device, wherein heating device structure are spent as shown in Fig. 2, upward view is as shown in figure 3, cross-section structure such as Fig. 4 institutes
Show and (heats in figure and filled by thermal insulation layer 8 between ring 1 and material to be detected 2), it is heat-insulated by 5 heating 1,5 thermocouples of ring and 5
Layer 8 forms, and each ring 1 that heats is sleeved on a thermal insulation layer 8, and each thermal insulation layer 8 is wrapped in outside material 2 to be detected, 5 heating
Ring 1 and thermal insulation layer 8 are distributed in axial 5 different locations of material 2 to be detected, and one thermocouple of assembly is used on each position
In measurement 2 local temperature of material to be detected；Each heating ring 1 is welded and fixed a heating loop resistance silk 3, and heating loop resistance silk 3 is logical
It crosses conducting wire 4 to connect with the resistance wire 5 of temperature-controlled cabinet, the resistance wire 5 of temperature-controlled cabinet is assemblied on temperature-controlled cabinet 6；Fixture 7
It is assemblied in the both ends of material 2 to be detected；Thermocouple is assembled together by conducting wire and temperature-controlled cabinet 6, where control heating ring 1
The local temperature of the material to be detected of position.
Embodiment 1
Standard size sample is made in material to be detected, heating is installed on the 5 axial positions of material to be detected respectively
Thermal insulation layer is arranged between heating ring and material to be detected in ring；It is then placed in compression performance test machine, dress is clamped by positioning
Setting makes material both ends to be detected fix to clamp；Thermal insulation layer is fiber enhanced plastic plate, is pasted onto on material to be detected；Heat ring material
Matter is copper, and the internal diameter for heating ring is matched with the outer diameter for the material to be detected for being pasted with thermal insulation layer；
Setting heating loop resistance silk, heating loop resistance silk on ring is heated by the resistance wire of conducting wire and temperature-controlled cabinet to connect
It connects, electrified regulation is carried out to heating ring by temperature-controlled cabinet, and then control the local temperature of material to be detected；
It is heated to heating ring energization, is heated up after so that each part of material to be detected is heated, adjust heating circumstance temperature degree,
The temperature of each heating ring position of material to be detected is set to be respectively set as 60 DEG C, 90 DEG C, 120 DEG C, 150 DEG C and 180 DEG C；
After the difference part of material to be detected respectively reaches different set temperatures, treated by compression performance test machine
It detects material and carries out compression test, according to the position that material to be detected destroys first, the heating ring of the corresponding position is adding
Set temperature when hot, as the compression failure temperature of the material to be detected；
When material to be detected is carbon fibre composite, it is known that its glass transition temperature is 156.55 DEG C；Test knot
Fruit finds nearby to be broken at 150 DEG C；
It is individually tested using conventional method：First by test specimen according to 20 DEG C, 60 DEG C, 90 DEG C, 120 DEG C, 150 DEG C of room temperature and
180 DEG C of six groups of temperature class carry out Unified number, and every group of temperature needs two testpieces to be tested, mutually synthermal experiment
Part is distinguished with A, B；Test result is identical as the method for the present invention；The method of the present invention is easy to be high compared with traditional approach
Effect, for data measured within allowable range of error, test result is authentic and valid.
The use scope described above that patent of the present invention cannot be considered as limiting, the protection domain of patent of the present invention by
Claims limited, any change on the basis of Patent right requirement of the present invention are all the protection domains of patent of the present invention.
Claims (7)
1. a kind of detection method of the compression failure temperature of material, it is characterised in that carry out according to the following steps：
(1) standard size sample is made in material to be detected, installs and adds on axial multiple and different positions of material to be detected
Thermal insulation layer is arranged between heating ring and material to be detected in hot ring；It is then placed in compression performance test machine, is clamped by positioning
Device makes material both ends to be detected fix to clamp；
(2) it is heated to heating ring energization, is heated up after so that each part of material to be detected is heated, adjust heating circumstance temperature degree,
The difference part of material to be detected is set to be heated to different temperatures；
(3) it after the difference part of material to be detected respectively reaches different set temperatures, is treated by compression performance test machine
It detects material and carries out compression test, according to the position that material to be detected destroys first, the heating ring of the corresponding position is adding
Set temperature when hot, as the compression failure temperature of the material to be detected.
2. a kind of detection method of the compression failure temperature of material according to claim 1, it is characterised in that described waits for
Detection material is composite material, titanium alloy, high temperature alloy or stainless steel.
3. a kind of detection method of the compression failure temperature of material according to claim 1, it is characterised in that it is described every
Thermosphere is fiber enhanced plastic plate, is pasted onto on material to be detected.
4. a kind of detection method of the compression failure temperature of material according to claim 1, it is characterised in that described adds
It is copper that hot ring, which selects material, heats the inner passage size of ring and is pasted with the material outer matching size to be detected of thermal insulation layer
It closes.
5. a kind of detection method of the compression failure temperature of material according to claim 1, it is characterised in that described adds
Setting heating loop resistance silk, heating loop resistance silk are connected by the resistance wire of conducting wire and temperature-controlled cabinet on hot ring, pass through temperature
Control cabinet carries out electrified regulation to heating ring, and then controls the local temperature of material to be detected.
6. a kind of detection device of the compression failure temperature of material that implementing method described in claim 1, it is characterised in that packet
Include fixture 7, temperature-controlled cabinet 6 and heating device, wherein heating device is by multiple heating rings 1, multiple thermocouples and multiple heat-insulated
Layer 8 forms, and each ring 1 that heats is sleeved on a thermal insulation layer 8, and each thermal insulation layer 8 is wrapped in outside material 2 to be detected, 5 heating
Ring 1 and thermal insulation layer 8 are distributed in axial 5 different locations of material 2 to be detected, and one thermocouple of assembly is used on each position
In measurement 2 local temperature of material to be detected；Each heating ring 1 is equipped with heating loop resistance silk 3, heating loop resistance silk 3 by conducting wire 4 with
The resistance wire 5 of temperature-controlled cabinet connects, and the resistance wire 5 of temperature-controlled cabinet is assemblied on temperature-controlled cabinet 6；Fixture 7, which is assemblied in, to be waited for
Detect the both ends of material 2.
7. the detection device of the compression failure temperature of material according to claim 6, it is characterised in that the thermocouple
It is assembled together by conducting wire and temperature-controlled cabinet 6, the local temperature of the material to be detected 2 of 1 position of control heating ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810116075.4A CN108344636B (en) | 2018-02-06 | 2018-02-06 | Method and device for detecting compression failure temperature of material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810116075.4A CN108344636B (en) | 2018-02-06 | 2018-02-06 | Method and device for detecting compression failure temperature of material |
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| Publication Number | Publication Date |
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| CN108344636A true CN108344636A (en) | 2018-07-31 |
| CN108344636B CN108344636B (en) | 2020-05-12 |
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| CN201810116075.4A Active CN108344636B (en) | 2018-02-06 | 2018-02-06 | Method and device for detecting compression failure temperature of material |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102798576A (en) * | 2011-05-26 | 2012-11-28 | 燕山大学 | Method for simulating and detecting thermal fatigue life of surface of casting-rolling working roller of continuous casting billet |
| WO2014098296A1 (en) * | 2012-12-21 | 2014-06-26 | 강원대학교 산학협력단 | Horizontal arrangement type tension-compression tester |
| EP2866010A1 (en) * | 2013-10-25 | 2015-04-29 | Rolls-Royce plc | Temperature indicator |
| CN204594788U (en) * | 2015-05-27 | 2015-08-26 | 大连海事大学 | A kind of temperature-controllable Damage Detection of Rock Materials device |
| CN205538493U (en) * | 2015-12-31 | 2016-08-31 | 西南交通大学 | Polymeric material room high temperature multiaxis circulation test device |
| CN205642999U (en) * | 2016-02-04 | 2016-10-12 | 长春工业大学 | A cramping utensil for testing alloy material high temperature compression performance |
| CN107607411A (en) * | 2017-10-26 | 2018-01-19 | 新疆大学 | A kind of high-temperature tensile testing machine |
| CN206930526U (en) * | 2017-07-10 | 2018-01-26 | 象山益精高分子材料有限公司 | A kind of plastics detection puller system |
-
2018
- 2018-02-06 CN CN201810116075.4A patent/CN108344636B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102798576A (en) * | 2011-05-26 | 2012-11-28 | 燕山大学 | Method for simulating and detecting thermal fatigue life of surface of casting-rolling working roller of continuous casting billet |
| WO2014098296A1 (en) * | 2012-12-21 | 2014-06-26 | 강원대학교 산학협력단 | Horizontal arrangement type tension-compression tester |
| EP2866010A1 (en) * | 2013-10-25 | 2015-04-29 | Rolls-Royce plc | Temperature indicator |
| CN204594788U (en) * | 2015-05-27 | 2015-08-26 | 大连海事大学 | A kind of temperature-controllable Damage Detection of Rock Materials device |
| CN205538493U (en) * | 2015-12-31 | 2016-08-31 | 西南交通大学 | Polymeric material room high temperature multiaxis circulation test device |
| CN205642999U (en) * | 2016-02-04 | 2016-10-12 | 长春工业大学 | A cramping utensil for testing alloy material high temperature compression performance |
| CN206930526U (en) * | 2017-07-10 | 2018-01-26 | 象山益精高分子材料有限公司 | A kind of plastics detection puller system |
| CN107607411A (en) * | 2017-10-26 | 2018-01-19 | 新疆大学 | A kind of high-temperature tensile testing machine |
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| CN108344636B (en) | 2020-05-12 |
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