CN102645369A - Low-temperature tensile test device - Google Patents
Low-temperature tensile test device Download PDFInfo
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- CN102645369A CN102645369A CN2012101284232A CN201210128423A CN102645369A CN 102645369 A CN102645369 A CN 102645369A CN 2012101284232 A CN2012101284232 A CN 2012101284232A CN 201210128423 A CN201210128423 A CN 201210128423A CN 102645369 A CN102645369 A CN 102645369A
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Abstract
An embodiment of the invention discloses a low-temperature tensile test device, which can conduct low-temperature tensile modulus detection while enabling the temperature to be maintained in a stable environment. The device comprises a tank body, a tank cover and a tensile clamp, wherein both the tank body and the tank cover comprise cold accumulation liners, insulation boards and fiber strengthening reinforcement layers to reduce temperature fluctuation inside the tank body. The tensile clamp comprises a plastic draw bar, a penetrating hole is respectively arranged on the upper lateral face and the lower lateral face of the tank body, and the plastic draw bar penetrates through the tank body through the penetrating holes to block thermal bridge effects and reduce temperature variation inside the tank body. A thermometer is further arranged in the device and penetrates through the tank cover to extend into the tank body to inspect the temperature variation inside the tank body.
Description
Technical field
The present invention relates to a kind of test unit, especially relate to a kind of cryogenic tensile test unit.
Background technology
Along with the development of every profession and trade, at present a lot of materials all are widely used in the low temperature environment, like metal material, construction sealing materials, macromolecular material or the like.
Normally, low temperature environment can adopt volume can hold the stretching device of tension tester, and its temperature is adjustable; Existing this can with cryogenic tensile test unit that common tension tester is used in combination in, the cryogenic tensile test unit of patent document number for providing in the CN10233137A file, it has adopted isocyanurate foam as insulation material; Adopt liquid nitrogen to lower the temperature, practice is found, is not easy realization with the temperature maintenance of liquid nitrogen control stretching device in some small range; As for the silicone building sealant; Because liquid nitrogen cooling is very fast, if very difficult with the temperature of liquid nitrogen control stretching device in (20 ± 2) ℃ this scope, need be by the temperature regulating device of complicacy; Cause device structure complicated, the cost cost is high; Simultaneously, the cryogenic tensile test unit needs frequent the unlatching, needs cooling again after each the unlatching, and the required time is longer, complicated operation; In addition, stretching clamp is not provided with the heat bridge blocking-up, causes loss of refrigeration capacity big, and the waste liquid nitrogen increases cost.
Summary of the invention
The embodiment of the invention provides a kind of cryogenic tensile test unit, and it can carry out the detection of cryogenic tensile modulus with temperature maintenance under stable environment, simple to operate.
In view of this, the embodiment of the invention provides a kind of cryogenic tensile test unit, comprising:
Casing, case lid and stretching clamp;
Said casing and case lid all comprise cold-storage inner bag, warming plate, fiber reinforcement back-up coat;
Said stretching clamp comprises plastic tie, and said casing left and right side is respectively arranged with perforation, and said plastic tie runs through said casing through said perforation;
Also be provided with thermometer in the said device, said thermometer passes case lid, and puts in said box house.
Be provided with the magnetic sealing strip and the steel plate of seal case when being used for the casing sealing between said casing and the case lid, said magnetic sealing strip is arranged at around the case lid, and said steel plate is arranged at around the said casing case mouth.
Said fiber reinforcement back-up coat adopts epoxy resin to become with glass screen cloth complex group.
Said cold-storage inner bag and said warming plate adopt the silicone seal glue bond.
Said stretching clamp also comprises steel matter folder.
Said cold-storage inner bag is the aluminium alloy inner bag.
Said plastic tie is the nylon pull bar.
Said warming plate is extruded sheet, molded plate or polyurethane sheet.
Can find out that from above technical scheme the cryogenic tensile test unit that the embodiment of the invention provides has the following advantages: its casing adopts aluminium alloy cool storage material, warming plate and fiber reinforcement back-up coat, to reduce the temperature fluctuation of box house; The tie-bar of stretching clamp adopts macromolecular materials such as nylon, and with the blocking-up heat bridge, effectively the holdout device internal temperature is stable; Utilize the magnetic action of magnetic sealing strip and steel plate between case lid and the casing, strengthen box sealing property, and be convenient to open and close; Be placed with thermometer in the casing, change so that observe the casing internal temperature, the interior temperature maintenance of convenient control casing is carried out the cryogenic tensile modulus and is detected under stable environment.
Description of drawings
In order to be illustrated more clearly in the technical scheme of the embodiment of the invention; The accompanying drawing do introduction simply of required use will be described embodiment below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The structural representation of a kind of cryogenic tensile test unit that Fig. 1 provides for the embodiment of the invention;
The A-A directional profile figure of a kind of cryogenic tensile test unit that Fig. 2 provides for Fig. 1.
Embodiment
The embodiment of the invention provides a kind of cryogenic tensile test unit, and it can carry out the detection of cryogenic tensile modulus with temperature maintenance under stable environment, simple to operate.
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making all other embodiment that obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
Below be elaborated respectively.
Please in the lump with reference to figure 1 and Fig. 2, the structural representation of a kind of cryogenic tensile test unit that Fig. 1 provides for the embodiment of the invention, Fig. 2 is the A-A directional profile figure of said cryogenic tensile test unit, wherein, this device comprises:
Alternatively; Like Fig. 1 or shown in Figure 2, cold-storage inner bag 11, warming plate 12, fiber reinforcement back-up coat 13 are wrapped to form casing 1 successively from inside to outside layer by layer, likewise; Cold-storage inner bag 11, warming plate 12, fiber reinforcement back-up coat 13 are successively from inside to outside; Thereby form case lid 2, casing 1 is used with case lid 2, and what case lid 2 was used to seal covers at casing 1.
It is understandable that in the present embodiment, casing 1 can be square, rectangular parallelepiped or right cylinder setting, and its face shaping is not done concrete qualification.
Wherein, casing 1 outer wall adopts warming plate 12 and 13 pairs of casings 1 of fiber reinforcement back-up coat to be incubated, and casing 1 inside is to adopt cool storage material as inner bag, can reduce the fluctuation of casing 1 temperature inside;
Preferably, cold-storage inner bag 11 can adopt the silicone seal glue bond with warming plate 12, and this cold-storage inner bag 11 can be the aluminium alloy inner bag, and warming plate 12 can be extruded sheet, molded plate or polyurethane sheet; Fiber reinforcement back-up coat 13 can be fibre-reinforced epoxy coating; Particularly, can adopt epoxy resin to become, it is understandable that with glass screen cloth complex group; Silicone sealant can replace to other fluid sealants; Epoxy resin can replace with epoxy steel bonding glue, and the glass screen cloth can replace with gauze, does not do concrete qualification here.
As shown in Figure 1, stretching clamp 3 comprises plastic tie 31, and casing is respectively arranged with perforation in the side about in the of 1, and plastic tie 31 runs through casing 1 through perforation, with the blocking-up heat bridge effect, reduces casing 1 temperature inside and changes, and keeps the box house temperature.
Wherein, plastic tie 31 can adopt the material of nylon or other heat bridges capable of blocking, does not do concrete qualification here.
It is understandable that, so-called heat bridge effect, i.e. the physical influence of heat conduction in this embodiment, is in order to prevent that casing 1 internal temperature from receiving casing 1 externalities, to keep casing 1 internal temperature.
Alternatively, stretching clamp 3 can also comprise steel matter folder 32, and this steel matter folder 32 is used for the clamping test specimen.
Like Fig. 1 or shown in Figure 2; Be provided with magnetic sealing strip 41 and steel plate 42 between casing 1 and the case lid 2, magnetic sealing strip 41 is arranged at around the case lid 2, and steel plate 42 is arranged at around 1 case mouth of casing; When casing 1 sealing, magnetic action seal case 1 takes place with steel plate 42 in magnetic sealing strip 41.
It is understandable that, owing to the magnetic action that has utilized 42 of magnetic sealing strip 41 and steel plates between casing 1 and the case lid 2, so its good airproof performance.
Alternatively, also be provided with thermometer 5 in the device, can monitor the temperature in the casing 1 in real time; Wherein, thermometer 5 passes case lid 2, puts in casing 1 inside; Change for observing the casing temperature inside, guarantee in tension test process casing 1 temperature inside maintain in the scope that will control.
In practical operation, can carry out the low temperature environment of cryogenic tensile test according to test specimen, go to be provided with the temperature of refrigeration case; It is understandable that; Thermometer 5 is the thermometers with low-temperature measurement scope, for example, if to silicone sealant; Then the temperature range of low-temperature refrigeration box can transfer to (20 ± 2) ℃, and the measurable range of thermometer also comprises (20 ± 2) ℃.
In order to understand the cryogenic tensile test unit that the embodiment of the invention provides better, below be silicone sealant with the test specimen, the use of cryogenic tensile test unit is described:
At first, brief account is carried out in the requirement of silicone sealant and cryogenic tensile thereof: in fields such as building curtain wall,, so be widely used because silicone sealant has good low temperature flexibility, uses characteristics such as simple and convenient, long service life and compatibility are good.Fluid sealant is of a great variety in the market; Quality is uneven; Fluid sealant inferior can have a strong impact on the security and the serviceable life of curtain wall, adds owing to fluid sealant inferior cohesive strength and the obvious deterioration of deformation performance meeting under low temperature environment, therefore; The low temperature detection technique of fluid sealant has very important realistic meaning to the quality of distinguishing fluid sealant.
In standard GB/T14683-2003 " silicone building sealant " and GB/T13477.8-2002 " Test method for building sealants the 8th part: the mensuration of tensile propcrties " method, stipulate: the cryogenic tensile modulus of fluid sealant is carried out under the environment of (20 ± 2) ℃; Draw speed is (5～6) mm/min; Low temperature environment adopts refrigeration case to realize; Refrigeration case is " volume can hold the tension tester stretching device, and temperature can transfer to (20 ± 2) ℃ ".
For test specimen is silicone sealant, when using this cryogenic tensile test unit to carry out the detection of cryogenic tensile modulus, should by the method for national Specification the silicone sealant sample be processed test specimen (a group three) earlier, and carry out maintenance by official hour.During detection, the case lid 2 of cryogenic tensile test unit shown in the figure is opened, put in advance in the low-temperature refrigeration box that mixes up-22 ℃; And three test specimens are put into low-temperature refrigeration box simultaneously carry out the low temperature adjusting, after 4 hours, one of three test specimens are put into stretching clamp 3; Build case lid 2, and whole device is taken out from low-temperature refrigeration box, above-mentioned nylon pull bar and tension tester are linked; Carry out tension test; In the process of the test, note observing the temperature variation of thermometer 5, guarantee that the interior environment temperature of tensile test apparatus is in (20 ± 2) ℃ this scope.Because cabinet wall and outer wall have thermal and insulating performance, can effectively reduce the box house variation of temperature; Find that through actual test the cryogenic tensile test unit can change 1 ℃ in 3 minutes,, facts have proved, can accomplish the tension test of a test specimen in 3 minutes in the clock time fully as rising to-21 ℃ from-22 ℃.At this moment, fast above-mentioned two other test specimen is successively changed in this cryogenic tensile test unit, still can keep accomplishing tension test under satisfied (20 ± 2) ℃ condition of test specimen, process operation is simple, and high efficiency.For the unskilled personnel of operation, can the low-temperature test device be put in advance the low-temperature refrigeration box that mixes up-22 ℃ once more and carry out the low temperature adjusting, the time that low temperature is regulated is about half an hour.Repeat operations such as first test specimen of above-mentioned installation and binding nylon pull bar then, just can accomplish test second, third test specimen.
Know from above-mentioned, the cryogenic tensile test unit that the embodiment of the invention provides, its casing adopts aluminium alloy cool storage material, warming plate and fiber reinforcement back-up coat, to reduce the temperature fluctuation of box house; The tie-bar of stretching clamp adopts macromolecular materials such as nylon, and with the blocking-up heat bridge, effectively the holdout device internal temperature is stable; Utilize the magnetic action of magnetic sealing strip and steel plate between case lid and the casing, strengthen box sealing property, and be convenient to open and close; Be placed with thermometer in the casing, change so that observe the casing internal temperature, the interior temperature maintenance of convenient control casing is carried out the cryogenic tensile modulus and is detected under stable environment.
More than a kind of cryogenic tensile test unit provided by the present invention has been carried out detailed introduction; For one of ordinary skill in the art; Thought according to the embodiment of the invention; The part that on embodiment and range of application, all can change, in sum, this description should not be construed as limitation of the present invention.
Claims (8)
1. a cryogenic tensile test unit is characterized in that, comprising:
Casing, case lid and stretching clamp;
Said casing and case lid all comprise cold-storage inner bag, warming plate, fiber reinforcement back-up coat;
Said stretching clamp comprises plastic tie, and said casing is respectively arranged with perforation in the side up and down, and said plastic tie runs through said casing through said perforation;
Also be provided with thermometer in the said device, said thermometer passes case lid, and puts in said box house.
2. device according to claim 1 is characterized in that, comprising:
Be provided with the magnetic sealing strip and the steel plate of seal case when being used for the casing sealing between said casing and the case lid, said magnetic sealing strip is arranged at around the case lid, and said steel plate is arranged at around the said casing case mouth.
3. device according to claim 1 is characterized in that, comprising:
Said fiber reinforcement back-up coat adopts epoxy resin to become with glass screen cloth complex group.
4. device according to claim 1 is characterized in that, comprising:
Said cold-storage inner bag and said warming plate adopt the silicone seal glue bond.
5. device according to claim 1 is characterized in that, comprising:
Said stretching clamp also comprises steel matter folder.
6. according to each described device of claim 1 to 5, it is characterized in that, comprising:
Said cold-storage inner bag is the aluminium alloy inner bag.
7. according to each described device of claim 1 to 5, it is characterized in that, comprising:
Said plastic tie is the nylon pull bar.
8. according to each described device of claim 1 to 5, it is characterized in that, comprising:
Said warming plate is extruded sheet, molded plate or polyurethane sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101284232A CN102645369A (en) | 2012-04-27 | 2012-04-27 | Low-temperature tensile test device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012101284232A CN102645369A (en) | 2012-04-27 | 2012-04-27 | Low-temperature tensile test device |
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| CN102645369A true CN102645369A (en) | 2012-08-22 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103091176A (en) * | 2012-11-26 | 2013-05-08 | 中国石油大学(华东) | Testing device for testing mechanical property of steel bar under ultralow temperature environment |
| CN103344487A (en) * | 2013-07-10 | 2013-10-09 | 南京钢铁股份有限公司 | Device for low-temperature stretching test of metal material |
| CN103884601A (en) * | 2012-12-20 | 2014-06-25 | 核工业西南物理研究院 | Cylindrical multi-sample continuous stretching testing device in liquid helium temperature zone and method |
| CN104020053A (en) * | 2014-06-18 | 2014-09-03 | 马钢(集团)控股有限公司 | Test device applicable to ultralow temperature reinforcing steel bar tensile test |
| CN105353192A (en) * | 2015-11-19 | 2016-02-24 | 无锡乐尔科技有限公司 | Current sensor |
| CN107831066A (en) * | 2017-10-27 | 2018-03-23 | 燕京啤酒(桂林漓泉)股份有限公司 | One kind judges the whether satisfactory method of corrugated case PUR joint sealing firmness |
| CN107976360A (en) * | 2017-11-15 | 2018-05-01 | 南通耀华建设工程质量检测有限公司 | A kind of structural silicone adhesive pollution test fixture |
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| CN1773192A (en) * | 2005-11-10 | 2006-05-17 | 上海交通大学 | Indoor solar DC cold-storing refrigerating apparatus |
| CN101706395A (en) * | 2009-11-18 | 2010-05-12 | 南京工业大学 | Device for measuring hydrogen embritllement sensitivity of materials in low-temperature environment |
| CN202661340U (en) * | 2012-04-27 | 2013-01-09 | 深圳市建筑科学研究院有限公司 | Low-temperature tensile test device |
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Patent Citations (4)
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| CN2575654Y (en) * | 2002-10-31 | 2003-09-24 | 北京有色金属研究总院 | Double-air chamber & double-measuring range Co2 infrared analyzer |
| CN1773192A (en) * | 2005-11-10 | 2006-05-17 | 上海交通大学 | Indoor solar DC cold-storing refrigerating apparatus |
| CN101706395A (en) * | 2009-11-18 | 2010-05-12 | 南京工业大学 | Device for measuring hydrogen embritllement sensitivity of materials in low-temperature environment |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103091176A (en) * | 2012-11-26 | 2013-05-08 | 中国石油大学(华东) | Testing device for testing mechanical property of steel bar under ultralow temperature environment |
| CN103091176B (en) * | 2012-11-26 | 2015-03-11 | 中国石油大学(华东) | Testing device for testing mechanical property of steel bar under ultralow temperature environment |
| CN103884601A (en) * | 2012-12-20 | 2014-06-25 | 核工业西南物理研究院 | Cylindrical multi-sample continuous stretching testing device in liquid helium temperature zone and method |
| CN103884601B (en) * | 2012-12-20 | 2016-12-28 | 核工业西南物理研究院 | The cylindrical many samples continuously elongated test device and method of a kind of liquid helium region |
| CN103344487A (en) * | 2013-07-10 | 2013-10-09 | 南京钢铁股份有限公司 | Device for low-temperature stretching test of metal material |
| CN103344487B (en) * | 2013-07-10 | 2015-05-27 | 南京钢铁股份有限公司 | Device for low-temperature stretching test of metal material |
| CN104020053A (en) * | 2014-06-18 | 2014-09-03 | 马钢(集团)控股有限公司 | Test device applicable to ultralow temperature reinforcing steel bar tensile test |
| CN105353192A (en) * | 2015-11-19 | 2016-02-24 | 无锡乐尔科技有限公司 | Current sensor |
| CN107831066A (en) * | 2017-10-27 | 2018-03-23 | 燕京啤酒(桂林漓泉)股份有限公司 | One kind judges the whether satisfactory method of corrugated case PUR joint sealing firmness |
| CN107831066B (en) * | 2017-10-27 | 2021-01-12 | 燕京啤酒(桂林漓泉)股份有限公司 | Method for judging whether sealing firmness of hot melt adhesive of corrugated case meets requirements |
| CN107976360A (en) * | 2017-11-15 | 2018-05-01 | 南通耀华建设工程质量检测有限公司 | A kind of structural silicone adhesive pollution test fixture |
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Application publication date: 20120822 |