CN202661340U - Low-temperature tensile test device - Google Patents
Low-temperature tensile test device Download PDFInfo
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- CN202661340U CN202661340U CN 201220186830 CN201220186830U CN202661340U CN 202661340 U CN202661340 U CN 202661340U CN 201220186830 CN201220186830 CN 201220186830 CN 201220186830 U CN201220186830 U CN 201220186830U CN 202661340 U CN202661340 U CN 202661340U
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- temperature
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- box body
- case lid
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Abstract
The embodiment of the utility model discloses a low-temperature tensile test device, which can maintain a stable temperature environment for carrying out low-temperature tensile modulus detection. The low-temperature tensile test device comprises a box body, a box cover and a tensile clamp, wherein the box body and the box cover respectively comprise a cold accumulation inner liner, a heat insulation plate and a fiber enhanced reinforcement layer for reducing the fluctuation of the temperature inside the box body, the tensile clamp comprises a plastic pull rod, the upper side surface and the lower side surface of the box body are respectively provided with through holes, the plastic pull rod passes through the through holes to penetrate through the box body so that the heat bridge effect is blocked, and the change of the temperature inside the box body is reduced, and a temperature indicator is also arranged in the device, passes through the box cover and extends into the inside of the box body, so the change of the temperature inside the box body can be observed.
Description
Technical field
The utility model relates to a kind of test unit, especially relates to a kind of low-temperature tensile test device.
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, such as metal material, construction sealing materials, macromolecular material etc.
Normally, low temperature environment can adopt volume can hold the stretching device of tension tester, and its temperature is adjustable; Existing this can with low-temperature tensile test device that common tension tester is combined with in, the low-temperature tensile test device 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, maintaining some less scopes with the temperature of liquid nitrogen restrained stretching device is not easy to realize, as for the silicone building sealant, because liquid nitrogen cooling is very fast, if the temperature with liquid nitrogen restrained stretching device is very difficult in (20 ± 2) ℃ this scope, need to cause device structure complicated by the temperature regulating device of complexity, cost be high; Simultaneously, low-temperature tensile test device needs frequent the unlatching, needs again to lower the temperature after each the unlatching, and the required time is longer, complicated operation; In addition, stretching clamp does not arrange the heat bridge blocking-up, causes loss of refrigeration capacity large, and the waste liquid nitrogen increases cost.
The utility model content
The utility model embodiment provides a kind of low-temperature tensile test device, and it can maintain temperature and carry out the detection of cryogenic tensile modulus under the stable environment, and is simple to operate.
In view of this, the utility model embodiment provides a kind of low-temperature tensile test device, comprising:
Casing, case lid and stretching clamp;
Described casing and case lid all comprise cold-storage inner bag, warming plate, fiber reinforcement back-up coat;
Described stretching clamp comprises plastic tie, and described casing left and right side is respectively arranged with perforation, and described plastic tie runs through described casing by described perforation;
Also be provided with thermometer in the described device, described thermometer passes case lid, and puts in described box house.
Be provided with magnetic sealing strip and the steel plate of seal case when sealing for casing between described casing and the case lid, described magnetic sealing strip is arranged at around the case lid, and described steel plate is arranged at around the described casing case mouth.
Described fiber reinforcement back-up coat adopts epoxy resin to become with glass screen cloth complex group.
Described cold-storage inner bag and described warming plate adopt the silicone seal glue bond.
Described stretching clamp also comprises steel matter folder.
Described cold-storage inner bag is aluminium alloy inner container.
Described plastic tie is the nylon pull bar.
Described warming plate is extruded sheet, molded plate or polyurethane sheet.
As can be seen from the above technical solutions, the low-temperature tensile test device that the utility model embodiment 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 the 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 body tightness, and be convenient to open and close; Be placed with thermometer in the casing, so that observation casing internal temperature changes, temperature maintains and carries out the detection of cryogenic tensile modulus under the stable environment in the convenient control casing.
Description of drawings
In order to be illustrated more clearly in the technical scheme of the utility model embodiment, the below will describe to embodiment the simply introduction of accompanying drawing do of required use, apparently, accompanying drawing in the following describes only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The structural representation of a kind of low-temperature tensile test device that Fig. 1 provides for the utility model embodiment;
The A-A directional profile figure of a kind of low-temperature tensile test device that Fig. 2 provides for Fig. 1.
Embodiment
The utility model embodiment provides a kind of low-temperature tensile test device, and it can maintain temperature and carry out the detection of cryogenic tensile modulus under the stable environment, and is simple to operate.
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making all other embodiment that obtain under the creative work prerequisite, all belong to the scope of the utility model protection.
Below be elaborated respectively.
Please in the lump with reference to figure 1 and Fig. 2, the structural representation of a kind of low-temperature tensile test device that Fig. 1 provides for the utility model embodiment, Fig. 2 is the A-A directional profile figure of described low-temperature tensile test device, wherein, this device comprises:
Alternatively, such as 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, similarly, 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 and case lid 2 are used in conjunction with, and case lid 2 is used for covering at casing 1 of sealing.
Be 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 restriction.
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 temperature fluctuation of casing 1 inside;
Preferably, cold-storage inner bag 11 and warming plate 12 can adopt the silicone seal glue bond, and this cold-storage inner bag 11 can be aluminium alloy inner container, 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 with glass screen cloth complex group, be understandable that, 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 restriction herein.
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 by perforation, with the blocking-up heat bridge effect, reduces the temperature variation of casing 1 inside, keeps the box house temperature.
Wherein, plastic tie 31 can adopt the material of nylon or other heat bridges capable of blocking to make, and does not do concrete restriction herein.
Be understandable that, so-called heat bridge effect, namely heat conducting physical influence in this embodiment, is in order to prevent that casing 1 internal temperature is subject to 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.
Such as 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 occurs with steel plate 42 in magnetic sealing strip 41.
Be 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 the Real-Time Monitoring casing temperature in 1, wherein, thermometer 5 passes case lid 2, puts in casing 1 inside, for the temperature variation of observing box house, guarantee that the temperature of casing 1 inside in the tension test process maintains in the scope that will control.
In practical operation, can carry out according to test specimen the low temperature environment of cryogenic tensile test, go to arrange the temperature of refrigeration case, be understandable that, thermometer 5 is the thermometers with low-temperature measurement scope, for example, if for 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) ℃.
The low-temperature tensile test device that provides in order to understand better the utility model embodiment, below take test specimen as silicone sealant, the use of low-temperature tensile test device is described:
At first, the requirement of silicone sealant and cryogenic tensile thereof is simply introduced: in the fields such as building curtain wall, because silicone sealant has good low temperature flexibility, uses the characteristics such as simple and convenient, long service life and compatibility are good, so be widely used.Fluid sealant is of a great variety in the market, quality is uneven, fluid sealant inferior can have a strong impact on security and the serviceable life of curtain wall, add since fluid sealant inferior cohesive strength and deformation performance can be obviously deteriorated 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.
Stipulate in standard GB/T/T14683-2003 " silicone building sealant " and GB/T13477.8-2002 " Test method for building sealants the 8th part: the mensuration of tensile propcrties " method: 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) ℃ ".
Be silicone sealant for test specimen, when using this low-temperature tensile test device to carry out the detection of cryogenic tensile modulus, should by the method for national Specification the silicone sealant sample be made test specimen (a group three) first, and the time is in accordance with regulations carried out maintenance.During detection, the case lid 2 of low-temperature tensile test device 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 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 variation of box house temperature; Find through actual test, low-temperature tensile test device can change 1 ℃ in 3 minutes, as rising to-21 ℃ from-22 ℃, facts have proved, can finish the tension test of a test specimen in 3 minutes fully.At this moment, fast above-mentioned two other test specimen is successively changed in this low-temperature tensile test device, still can keep finishing tension test under satisfied (20 ± 2) ℃ condition of test specimen, process operation is simple, and high efficiency.For the unskilled personnel of operation, the low-temperature test device can be put in advance again the low-temperature refrigeration box that mixes up-22 ℃ and be carried out the low temperature adjusting, the time that low temperature is regulated is about half an hour.Then repeat the operations such as first test specimen of above-mentioned installation and link nylon pull bar, just can finish the test to second, third test specimen.
From the foregoing, the low-temperature tensile test device that the utility model embodiment 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 the 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 body tightness, and be convenient to open and close; Be placed with thermometer in the casing, so that observation casing internal temperature changes, temperature maintains and carries out the detection of cryogenic tensile modulus under the stable environment in the convenient control casing.
Above a kind of low-temperature tensile test device provided by the utility model is described in detail, for one of ordinary skill in the art, thought according to the utility model embodiment, all will change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model.
Claims (8)
1. a low-temperature tensile test device is characterized in that, comprising:
Casing, case lid and stretching clamp;
Described casing and case lid all comprise cold-storage inner bag, warming plate, fiber reinforcement back-up coat;
Described stretching clamp comprises plastic tie, and described casing is respectively arranged with perforation in the side up and down, and described plastic tie runs through described casing by described perforation;
Also be provided with thermometer in the described device, described thermometer passes case lid, and puts in described box house.
2. device according to claim 1 is characterized in that, comprising:
Be provided with magnetic sealing strip and the steel plate of seal case when sealing for casing between described casing and the case lid, described magnetic sealing strip is arranged at around the case lid, and described steel plate is arranged at around the described casing case mouth.
3. device according to claim 1 is characterized in that, comprising:
Described 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:
Described cold-storage inner bag and described warming plate adopt the silicone seal glue bond.
5. device according to claim 1 is characterized in that, comprising:
Described stretching clamp also comprises steel matter folder.
6. according to claim 1 to 5 each described devices, it is characterized in that, comprising:
Described cold-storage inner bag is aluminium alloy inner container.
7. according to claim 1 to 5 each described devices, it is characterized in that, comprising:
Described plastic tie is the nylon pull bar.
8. according to claim 1 to 5 each described devices, it is characterized in that, comprising:
Described warming plate is extruded sheet, molded plate or polyurethane sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220186830 CN202661340U (en) | 2012-04-27 | 2012-04-27 | Low-temperature tensile test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220186830 CN202661340U (en) | 2012-04-27 | 2012-04-27 | Low-temperature tensile test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202661340U true CN202661340U (en) | 2013-01-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220186830 Expired - Lifetime CN202661340U (en) | 2012-04-27 | 2012-04-27 | Low-temperature tensile test device |
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| CN (1) | CN202661340U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102645369A (en) * | 2012-04-27 | 2012-08-22 | 深圳市建筑科学研究院有限公司 | Low-temperature tensile test device |
-
2012
- 2012-04-27 CN CN 201220186830 patent/CN202661340U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102645369A (en) * | 2012-04-27 | 2012-08-22 | 深圳市建筑科学研究院有限公司 | Low-temperature tensile test device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHENZHEN INSTITUTE OF BUILDING RESEARCH CO., LTD. Free format text: FORMER NAME: SHENZHEN BUILDING SCIENCE RESEARCH INSTITUTE CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 518049 Guangdong city of Shenzhen province Futian District, Mei Ao Road No. 29 building, building three Patentee after: Shenzhen Institute of Building Research Co., Ltd. Address before: 518049 Guangdong city of Shenzhen province Futian District, Mei Ao Road No. 29 building, building three Patentee before: Shenzhen Building Science Research Institute Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20130109 |
|
| CX01 | Expiry of patent term |