CN104568743A - Testing device for vertical bonding strength of ice layers on surface of material and testing method thereof - Google Patents
Testing device for vertical bonding strength of ice layers on surface of material and testing method thereof Download PDFInfo
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- CN104568743A CN104568743A CN201510018125.1A CN201510018125A CN104568743A CN 104568743 A CN104568743 A CN 104568743A CN 201510018125 A CN201510018125 A CN 201510018125A CN 104568743 A CN104568743 A CN 104568743A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
- G01N19/04—Measuring adhesive force between materials, e.g. of sealing tape, of coating
Abstract
The invention discloses a testing device for the vertical bonding strength of ice layers on the surface of a material and a testing method thereof. The method comprises the following steps: firstly preparing the ice layers with equal volume and equal contact area by utilizing a conical drum in the testing device, and then peeling the ice layers by utilizing a drawing device to lift the conical drum; reading the maximum normal force in the peeling process and representing the vertical bonding strength of the ice layers on the surface of the material by utilizing the ratio of the maximum normal force to the contact area of the ice layers and a sample. The testing device and the testing method disclosed by the invention can be used for testing the vertical bonding strength of the ice layers on the surfaces of multiple materials, coating layers and natural organisms and on the surface of a special wettability sample, provides a simple and effective evaluation method and means for material and coating-layer selection and the surface modification technology in engineering and also provides a good representation means for scientific research simultaneously.
Description
Technical field
The present invention relates to a kind of for metal material, coating, natural biologic material surface and the proving installation of special wettable surfaces's ice sheet intensity, be specifically related to proving installation and the method for testing thereof of the vertical bond strength of a kind of material surface ice sheet.
Background technology
At occurring in nature, freezing is a kind of natural landscape of beauty, can bring visual enjoyment to the mankind, but also can bring inconvenience often to daily life and Practical Project, even disaster.Such as electric system, high voltage overhead naked aluminum conductor of transmitting electricity there will be icing phenomenon under certain atmospheric environment.When transmission pressure icing is serious, line tripping will be there is, conductor galloping, rupture of line, conveying tower collapse, the disaster such as insulator arc-over and communication disruption.Aircraft surfaces different parts freezes and will cause aerodynamic quality variation, aircraft severe vibration, obstruction pilot's line of vision, interfere with communications or cause communication disruption etc., reduce the security performance such as maneuverability, stability of aircraft, directly threaten the flight safety of aircraft.At present, the ice control of every field has a variety of, the wherein comparatively conventional matrix surface that is included in applies antiicing coating, adopts the material less with ice sheet bond strength to carry out special processing as matrix and at material surface, the ice sheet bond strength on its surface is reduced.Therefore research material surface ice sheet bond strength is very important.
The report of the domestic and international method of testing about material surface ice sheet bond strength mainly contains at present: U.S.'s cold district Research And Engineering experiment ASTMD3528-96 (2002) testing standard, devise double-test-piece overlap joint tangential force method of testing, for the bond strength of evaluating material surface with ice; United States Army Corps of Engineers and cold district research engineering laboratory are measured after proposing the hollow drum ice making generally adopted at present and are sheared and normal direction peel strength, utilize normal direction and tangential thrust to peel off the surperficial ice bond strength of power exosyndrome material on ice in coreless cup and surface to be measured; A kind of " test of measuring anchoring strength of coating " method that domestic patent " device of a kind of testing ice cover or anchoring strength of coating " (ZL200920001291.0) proposes based on patent CN1321881A, utilizes the extruding of conical surface cavity volume and blocking and the normal force of tensile test specimens surface and ice; Domestic patent 201110115608.5 devises a kind of proving installation to ice shear adhesive strength, this test unit is at material surface titration water droplet, by the refrigeration unit bottom sample, sample is freezed, after its fully charge, utilize the movement of the sliding cutter above material to be peeled off by convex for surface ice, read the maximum peeling force recorded by dynamometer.Sum up method of testing and the device of the above material surface ice sheet bond strength of report at present, subject matter has: (1) equipment is complicated, and test elements is more, and test error is large; (2) test duration is long, and cost of manufacture is large; (3) test narrow application range, practicality is little.
Summary of the invention
For some problems that above existing surperficial ice sheet adhesion strength testing method and apparatus exists, the object of the present invention is to provide one have easy, quick, repeatable strong, be applicable to the ice sheet of multiple material (or coating) surface and special wetting state material surface vertically in conjunction with strength testing device and method of testing thereof.
Above-mentioned purpose of the present invention is achieved through the following technical solutions, a proving installation for the vertical bond strength of material surface ice sheet, primarily of upper cover plate, lower cover, secured adjusted device, locating connector, refrigeration unit, stretching coupling arrangement, coupling arrangement, stretching device, auxiliary gasket ring, tapered cylinder, sample cover plate, sample fixation screw bolt and support bar; It is characterized in that: two pieces of cover plates up and down of described proving installation are connected and fixed by secured adjusted device, and lower cover fixes refrigeration unit by locating connector, and refrigeration unit is provided with sample to be tested; Described stretching coupling arrangement is connected with coupling arrangement, and coupling arrangement is connected with stretching device, and stretching device connects tapered cylinder by auxiliary gasket ring, and tapered cylinder is connected with sample cover plate, and sample cover plate lower end is provided with sample to be tested; Described sample fixation screw bolt is fixedly connected with sample cover plate by upper cover plate, the whole proving installation of they sup-port.
First the method for the invention utilizes the tapered cylinder in measurement mechanism to prepare the ice sheet of the contacts area such as equal-volume, then utilizes stretching device to promote tapered cylinder and is peeled off by ice sheet; Read normal force maximum in stripping process, by this value and the ratio exosyndrome material surface ice sheet vertical bond strength of ice sheet with the contact area of sample.This method adopts the ice sheet of the contacts area such as equal-volume, efficient and controlled refrigeration unit surface temperature, and therefore test repeatability can ensure, and easy to operate, and test rate is fast; A method of testing for the vertical bond strength of material surface ice sheet, is characterized in that method step is as follows:
(1) process sample to be tested, ensure the surperficial depth of parallelism;
(2) sample to be tested processed is placed on refrigeration unit, and adds sample cover plate, fix with sample fixation screw bolt, ensure sample to be tested lower surface close contact refrigeration unit;
(3) regulate relative position between stretching device and tapered cylinder, open cupping machine, after tapered cylinder is slowly risen certain altitude, reset cupping machine force value data, then decline, allow tapered cylinder naturally drop on testing sample surface;
(4) open refrigeration unit, and start timing, after 10s, inject quantitative water to tapered cylinder with syringe, treat that in tapered cylinder, water freezing is complete, forms ice sheet;
(5) after fixing a period of time, open cupping machine, promote tapered cylinder by stretching device, the ice sheet and the sample to be tested that are formed are peeled off, the vertical bond strength of the surperficial ice sheet of ratio exosyndrome material of the maximum normal force shown by dynamometer and tapered cylinder bottom surface inner circle area.
Fix in (5) of the present invention a period of time be in tapered cylinder water formed ice sheet and refrigeration unit reach predetermined cryogenic temperature after certain time point be the time period of terminal.
The ice sheet that sample to be tested surface of the present invention is formed is coniform.
Lower cover of the present invention is connected on cupping machine test platform by support bar.
Stretching device of the present invention is connected on tension test machine power inductor by the coupling arrangement that stretches.
Of the present inventionly promote tapered cylinder by stretching device, the maximum normal force peeling off sample to be tested surface ice sheet can be read by the power inductor of cupping machine.
Refrigeration unit of the present invention is by automatic temperature controller, and the accurately cryogenic temperature of control refrigeration unit upper surface, cryogenic temperature is adjustable between-30 DEG C ~ 0 DEG C.
In (3) of the present invention, after being raised by tapered cylinder, reset digital display pulling force evaluation, get rid of tapered cylinder, assist the gravity of gasket ring, stretching device, coupling arrangement and stretching coupling arrangement on the impact of test result.
In (5) of the present invention, tapered cylinder base area gets tapered cylinder bottom surface inner circle area.
Device tapered cylinder of the present invention and sample cover plate material used are PFTE, have good insulation effect.
Device tapered cylinder of the present invention adopts conical design, and the internal face of low side ice sheet part changes its wetting state by the method that material surface microstructure regulates and controls, aobvious water wettability.
Technique scheme of the present invention, relative to the technology of existing material surface ice sheet bond strength, there is following difference: in (1) experimental provision, refrigeration unit freezes to sample to be tested, take to control refrigeration unit upper surface temperature, be similar to the temperature that controls environment, highlight sample to be tested anti-ice attribute inherently, test more effective, truly, be convenient to scientific research, and refrigerating efficiency is high, test period is short.(2) control of refrigeration unit upper surface temperature adopts mobile equilibrium heat preserving mode, and avoid when carrying out ice sheet vertically in conjunction with strength test, the ice sheet caused because departing from refrigerating environment melts, and produces larger impact to experimental result; (3) in device, tapered cylinder and fixing cover plate all have employed PFTE material, have good insulation effect, overcome the drawback that conventional cylinder ice making metallic cylinder ice making used is easily influenced by ambient temperature.(4) tapered cylinder adopts conical design, ice sheet and sample to be tested is can be good to peel off, and the internal face of tapered cylinder low side ice sheet part changes its wetting state by the method that material surface microstructure regulates and controls, aobvious water wettability, the material surface on different wetting surface can be tested, expand test specification, and test result is more accurate.(5) device utilizes the ice sheet of the contacts area such as tapered cylinder device equal-volume, by the ratio exosyndrome material surface ice sheet vertical bond strength of normal force maximum in record stripping process with tapered cylinder bottom surface inner circle area, error is little, and test data is reliable, can repeat strong.
Advantage of the present invention is: the ice sheet that can be used for multiple material, coating and natural biological surface and special wetting state specimen surface is vertical in conjunction with strength test, for material in engineering, coating selects and process for modifying surface provides simply, effectively evaluating ways and means, while also for scientific research provides good characterization method.
Accompanying drawing explanation
Fig. 1 is the structural representation of proving installation of the present invention.
Fig. 2 is that specimen surface ice sheet of the present invention is vertically in conjunction with strength test schematic diagram.
1, upper cover plate, 2, lower cover, 3, secured adjusted device, 4, locating connector, 5, refrigeration unit, 6, stretching coupling arrangement, 7, coupling arrangement, 8, stretching device, 9, auxiliary gasket ring, 10, tapered cylinder, 11, sample cover plate, 12, sample fixation screw bolt, 13, support bar, 14, sample to be tested, 15, ice sheet.
Embodiment
As shown in Figure 1, a proving installation for the vertical bond strength of material surface ice sheet, primarily of upper cover plate 1, lower cover 2, secured adjusted device 3, locating connector 4, refrigeration unit 5, stretching coupling arrangement 6, coupling arrangement 7, stretching device 8, auxiliary gasket ring 9, tapered cylinder 10, sample cover plate 11, sample fixation screw bolt 12 and support bar 13; It is characterized in that: upper cover plate 1 lower cover 2 of described proving installation is connected and fixed by secured adjusted device 3, and lower cover 2 fixes refrigeration unit 5 by locating connector 4, refrigeration unit 5 is provided with sample to be tested 14; Described stretching coupling arrangement 6 is connected with coupling arrangement 7, and coupling arrangement 7 is connected with stretching device 8, and stretching device 8 connects tapered cylinder 10 by auxiliary gasket ring 9, and tapered cylinder 10 is connected with sample cover plate 11, and sample cover plate 11 lower end is provided with sample to be tested 14; Described sample fixation screw bolt 12 is fixedly connected with sample cover plate 11 by upper cover plate 1, and support bar 13 supports whole proving installation.
As shown in Figure 2, the method for testing of the vertical bond strength of a kind of material surface ice sheet, is characterized in that method step is as follows:
(1) process sample to be tested 14, ensure the surperficial depth of parallelism;
(2) sample to be tested 14 processed is placed on refrigeration unit 5, and adds sample cover plate 11, fix with sample fixation screw bolt 12, ensure sample to be tested 14 lower surface close contact refrigeration unit 5;
(3) regulate relative position between stretching device 8 and tapered cylinder 10, open cupping machine, after tapered cylinder 10 is slowly risen certain altitude, reset cupping machine force value data, then decline, allow tapered cylinder 10 naturally drop on sample to be tested 14 surface;
(4) open refrigeration unit 5, and start timing, after 10s, inject quantitative water to tapered cylinder 10 with syringe, treat that in tapered cylinder 10, water freezing is complete, forms ice sheet 15;
(5) after fixing a period of time, open cupping machine, tapered cylinder 10 is promoted by stretching device 8, the ice sheet 15 of formation and sample to be tested 14 are peeled off, the vertical bond strength of the surperficial ice sheet of ratio exosyndrome material of the maximum normal force shown by dynamometer and tapered cylinder 10 bottom surface inner circle area;
(6), during conversion materials test, close refrigeration unit, change other test specimens to be measured, repeat 1. ~ 5. step.
Material surface ice sheet of the present invention is vertically in conjunction with strength testing device and method of testing, not only can be used for the vertical bond strength of multiple material sample to be tested surface ice sheet, but also it is vertical in conjunction with strength test with the ice sheet of natural biological and special wetting state material surface to may be used for carrying out various coating, is undertaken testing by above-mentioned steps.Obviously; according to content disclosed by the invention and specific embodiment explanation; one of ordinary skill in the art can make other multi-form variations; all embodiments cannot be enumerated in publication instructions, but the apparent variation be derived thus still belongs among protection scope of the present invention.
Claims (10)
1. a proving installation for the vertical bond strength of material surface ice sheet, primarily of upper cover plate, lower cover, secured adjusted device, locating connector, refrigeration unit, stretching coupling arrangement, coupling arrangement, stretching device, auxiliary gasket ring, tapered cylinder, sample cover plate, sample fixation screw bolt and support bar; It is characterized in that: two pieces of cover plates up and down of described proving installation are connected and fixed by secured adjusted device, and lower cover fixes refrigeration unit by locating connector, and refrigeration unit is provided with sample to be tested; Described stretching coupling arrangement is connected with coupling arrangement, and coupling arrangement is connected with stretching device, and stretching device connects tapered cylinder by auxiliary gasket ring, and tapered cylinder is connected with sample cover plate, and sample cover plate lower end is provided with sample to be tested; Described sample fixation screw bolt is fixedly connected with sample cover plate by upper cover plate, the whole proving installation of they sup-port.
2. a method of testing for the vertical bond strength of material surface ice sheet according to claim 1, is characterized in that method step is as follows:
(1) process sample to be tested, ensure the surperficial depth of parallelism;
(2) sample to be tested processed is placed on refrigeration unit, and adds sample cover plate, fix with sample fixation screw bolt, ensure sample to be tested lower surface close contact refrigeration unit;
(3) regulate relative position between stretching device and tapered cylinder, open cupping machine, after tapered cylinder is slowly risen certain altitude, reset cupping machine force value data, then decline, allow tapered cylinder naturally drop on testing sample surface;
(4) open refrigeration unit, and start timing, after 10s, inject quantitative water to tapered cylinder with syringe, treat that in tapered cylinder, water freezing is complete, forms ice sheet;
(5) after fixing a period of time, open cupping machine, promote tapered cylinder by stretching device, the ice sheet and the sample to be tested that are formed are peeled off, the vertical bond strength of the surperficial ice sheet of ratio exosyndrome material of the maximum normal force shown by dynamometer and tapered cylinder bottom surface inner circle area.
3. the method for testing of the vertical bond strength of a kind of material surface ice sheet according to claim 2, described refrigeration unit is by temperature controller, and accurately control the temperature of refrigeration unit upper surface, temperature regulating range is-30 DEG C ~ 0 DEG C.
4. the method for testing of the vertical bond strength of a kind of material surface ice sheet according to claim 2, fix in described (5) a period of time be in tapered cylinder water formed ice sheet and refrigeration unit reach predetermined cryogenic temperature after certain time point be the time period of terminal.
5. the method for testing of the vertical bond strength of a kind of material surface ice sheet according to claim 2, the ice sheet that described sample to be tested surface is formed is coniform.
6. the method for testing of the vertical bond strength of a kind of material surface ice sheet according to claim 1, described lower cover is connected on cupping machine test platform by support bar.
7. the method for testing of the vertical bond strength of a kind of material surface ice sheet according to claim 1, stretching device is connected on tension test machine power inductor by the coupling arrangement that stretches.
8. the method for testing of the vertical bond strength of a kind of material surface ice sheet according to claim 2, describedly promotes tapered cylinder by stretching device, and the maximum normal force peeling off sample to be tested surface ice sheet can be read by the power inductor of cupping machine.
9. the method for testing of the vertical bond strength of a kind of material surface ice sheet according to claim 2, described tapered cylinder and sample cover plate adopt PFTE material.
10. the method for testing of the vertical bond strength of a kind of material surface ice sheet according to claim 1, described tapered cylinder adopts conical design.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510018125.1A CN104568743B (en) | 2015-01-14 | 2015-01-14 | Testing device for vertical bonding strength of ice layers on surface of material and testing method thereof |
| PCT/CN2015/094760 WO2016112739A1 (en) | 2015-01-14 | 2015-11-17 | Material surface ice layer vertical bonding strength testing device and testing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510018125.1A CN104568743B (en) | 2015-01-14 | 2015-01-14 | Testing device for vertical bonding strength of ice layers on surface of material and testing method thereof |
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| CN104568743A true CN104568743A (en) | 2015-04-29 |
| CN104568743B CN104568743B (en) | 2017-04-19 |
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| CN201510018125.1A Expired - Fee Related CN104568743B (en) | 2015-01-14 | 2015-01-14 | Testing device for vertical bonding strength of ice layers on surface of material and testing method thereof |
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| CN (1) | CN104568743B (en) |
| WO (1) | WO2016112739A1 (en) |
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| CN104897565A (en) * | 2015-06-09 | 2015-09-09 | 哈尔滨工程大学 | Ice adhesion shearing strength measuring device |
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| CN106950176A (en) * | 2017-04-27 | 2017-07-14 | 国网山西省电力公司经济技术研究院 | It is a kind of to test coated by ice of overhead power transmission line and the apparatus and method of wire interface normal direction bond strength |
| CN106970021A (en) * | 2017-04-27 | 2017-07-21 | 国网山西省电力公司经济技术研究院 | It is a kind of to test ice covering on transmission lines and the apparatus and method of the tangential bond strength in power transmission line interface |
| CN108645791A (en) * | 2018-08-03 | 2018-10-12 | 中车青岛四方机车车辆股份有限公司 | A kind of icing adhesion strength test device |
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| WO2016112739A1 (en) * | 2015-01-14 | 2016-07-21 | 南昌航空大学 | Material surface ice layer vertical bonding strength testing device and testing method thereof |
| CN104897565A (en) * | 2015-06-09 | 2015-09-09 | 哈尔滨工程大学 | Ice adhesion shearing strength measuring device |
| CN104897565B (en) * | 2015-06-09 | 2017-05-24 | 哈尔滨工程大学 | Ice adhesion shearing strength measuring device |
| CN106950176A (en) * | 2017-04-27 | 2017-07-14 | 国网山西省电力公司经济技术研究院 | It is a kind of to test coated by ice of overhead power transmission line and the apparatus and method of wire interface normal direction bond strength |
| CN106970021A (en) * | 2017-04-27 | 2017-07-21 | 国网山西省电力公司经济技术研究院 | It is a kind of to test ice covering on transmission lines and the apparatus and method of the tangential bond strength in power transmission line interface |
| CN106950176B (en) * | 2017-04-27 | 2023-04-28 | 国网山西省电力公司经济技术研究院 | Device and method for testing normal bonding strength of icing and wire interface of overhead transmission line |
| CN108872065A (en) * | 2018-05-09 | 2018-11-23 | 青岛大学 | A kind of electrospinning micro nanometer fiber film adhesion test method and its device |
| CN108645791A (en) * | 2018-08-03 | 2018-10-12 | 中车青岛四方机车车辆股份有限公司 | A kind of icing adhesion strength test device |
| CN109765175A (en) * | 2019-01-29 | 2019-05-17 | 南京航空航天大学 | A kind of ice adherency normal direction force test method and device |
| WO2021196296A1 (en) * | 2020-04-03 | 2021-10-07 | 南京航空航天大学 | Device and method for testing fracture toughness of solid-ice interface on surface of coating material in a large-area icing status |
| CN113218860A (en) * | 2021-03-31 | 2021-08-06 | 华北理工大学 | Static ice adhesion testing device |
| CN114878457A (en) * | 2022-04-20 | 2022-08-09 | 北京理工大学 | Test device and method for measuring tangential ice adhesion strength of solid material surface |
| CN114878457B (en) * | 2022-04-20 | 2023-12-01 | 北京理工大学 | Test device and method for measuring tangential ice adhesion strength of solid material surface |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016112739A1 (en) | 2016-07-21 |
| CN104568743B (en) | 2017-04-19 |
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