CN203350129U - Polymer environment stress cracking experiment combined device - Google Patents
Polymer environment stress cracking experiment combined device Download PDFInfo
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- CN203350129U CN203350129U CN 201320417401 CN201320417401U CN203350129U CN 203350129 U CN203350129 U CN 203350129U CN 201320417401 CN201320417401 CN 201320417401 CN 201320417401 U CN201320417401 U CN 201320417401U CN 203350129 U CN203350129 U CN 203350129U
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Abstract
The utility model discloses a polymer environment stress cracking experiment combined device. The polymer environment stress cracking experiment combined device comprises two loading devices including a four-point bending creep experiment device and a four-point bending stress relaxation experiment device, wherein the four-point bending creep experiment device comprises a base; one side of the base is provided with a cross load device support, and the other side of the base is provided with a fixing support; the upper top surface of the fixing support is horizontally provided with a top plate; an environment box is fixed on the upper surface of the top plate; concentric shooting holes are respectively formed in the bottom surface of the environment box and the top plate; the bottom surface of the environment box is fixedly provided with a lower pressing head; the lower pressing head is provided with an upper pressing head; a pressure sensor is fixed on the upper end of the upper pressing head. The polymer environment stress cracking experiment combined device disclosed by the utility model is simple in structure, is convenient to use, can be used for accurately measuring each datum of the four-point bending creep and stress relaxation experiments under a liquid medium environment, is low in processing and manufacturing costs, and is beneficial to further popularization in the field.
Description
Technical field
The utility model relates to experiment appliance processing and manufacturing field, is specifically related to a kind of polymkeric substance environment stress cracking experiment combined device.
Background technology
Environmental stress cracking (ESC) refer to that polymkeric substance exposes in chemical mediator (solvent or surface reactive material) and the stress acting in conjunction lower than yield strength under, the brittle cracking breakoff phenomenon of generation.ESC is the one of the main reasons (accounting for 30%) that causes plastic products to be on active service and to lose efficacy, carry out relevant experimental study for promoting goods environmental stress crack resistance, development quality of item diagnostic means for ESC influence factor and failure mechanism, significant.At present, the ESC experiment for plastic products, still lack the special-purpose Mechanical loading experimental provision under airtight solvent environment.
The utility model content
The utility model purpose is to provide a kind of experiment combined device that detects polymkeric substance environment stress cracking, and it can detect and solve existing problem in background technology effectively.
A kind of polymkeric substance environment stress cracking experiment combined device, it is divided into four-point bending creep test device and two kinds of chargers of four-point bending stress relaxation experimental provision.
Four-point bending creep test device, it comprises base 1, one side of this base 1 is equipped with horizontal load device support 2, its other side is equipped with fixed support 3, the upper end face of described fixed support 3 is horizontally installed with top board 4, be fixed with environmental cabinet 5 above this top board 4, the bottom surface of described environmental cabinet 5 offers respectively concentric shooting hole with top board 4, be installed with push-down head 6 on the bottom surface of this environmental cabinet 5, described push-down head 6 is provided with seaming chuck 7, the upper end of this seaming chuck 7 is fixed with pressure transducer 8, the upper end of described pressure transducer 8 is fixed with compression leg 9, the upper end of described compression leg 9 is passed environmental cabinet 5 and is connected with link 10 by roller bearing, described compression leg 9 is equipped with compression leg sleeve 11 with environmental cabinet 5, the external diameter pull of the internal diameter laminating compression leg 9 of this compression leg sleeve 11 coordinates, the one side offers winding displacement hole 24, the output terminal of described pressure transducer 8 is connected with dynamic strain indicator 12, the input end of the other side of this dynamic strain indicator 12 is connected with displacement transducer 13, described displacement transducer 13 is arranged on environmental cabinet 5 and with compression leg 9 and contacts, the output terminal of described dynamic strain indicator 12 is connected with the input end of data-analyzing machine 14, the output terminal of described data-analyzing machine 14 is connected with pc computer 15, be provided with camera recording device in described fixed support 3, described camera recording device comprises the horizontal position adjustable board 16 be fixed on base 1, one side of described horizontal position adjustable board 16 is equipped with vertical position adjustable board 17, on this vertical position adjustable board 17, camera 18 is installed, the camera of described camera 18 is corresponding with the shooting hole on top board 4 and environmental cabinet 5, the upper end of described horizontal load device support 2 is rotationally connected by pin 19 and balance stem 20, one end of described balance stem 20 extends outward balance screw mandrel 21, this balance screw mandrel 21 is provided with and its counterbalance weight 22 that spins and coordinate, the other end of described balance stem 20 is through link 10, and with scale pan 23, be connected by lifting rope in its end.
Described environmental cabinet 5 integral body are welded to each other surrounded rectangular parallelepiped rectangular configuration by angle steel 51, be welded with respectively corrosion resistant plate 52 on it on end face and bottom surface, around it, sealing is fixed with side plate 53, the top of the side plate 53 of described environmental cabinet 5 one sides is provided with opening, and described side plate 53 adopts transparent material to be made.
Described seaming chuck 7 is made for aluminium.
Four-point bending stress relaxation experimental provision, it comprises base 25, fixed support 26 is installed above this base 25, the upper end face of described fixed support 26 is horizontally installed with top board 27, be fixed with environmental cabinet 28 above this top board 27, be fixed with Troffer 34 above described environmental cabinet 28, the bottom surface of described environmental cabinet 28 offers respectively concentric shooting hole with top board 27, be installed with push-down head 29 on the bottom surface of this environmental cabinet 28, described push-down head 29 is provided with seaming chuck 30, the upper end of this seaming chuck 30 is fixed with pressure transducer 31, the upper end of described pressure transducer 31 is fixed with compression leg 32, the upper end of described compression leg 32 extends in Troffer 34 through environmental cabinet 28, and contact with screw mandrel 35 by vertical stop means, the other end of described screw mandrel 35 is fixedly connected with handle 36 through Troffer 34, on described compression leg 32, displacement transducer 37 is installed, the data output end of described displacement sensor 37 and pressure transducer 31 is connected with the data input pin of dynamic strain indicator 38, the data output end of described dynamic strain indicator 38 is connected with the data input pin of data analyzer 39, the data output end of described data analyzer 39 is connected with the data input pin of pc computer 40, between described compression leg 32 and environmental cabinet 28, compression leg sleeve 41 is installed, the external diameter pull of the internal diameter laminating compression leg 32 of this compression leg sleeve 41 coordinates, the environmental cabinet 28 of one side offers winding displacement hole 42, this winding displacement hole 42 is positioned at Troffer 34, be provided with camera recording device in described fixed support 26, described camera recording device comprises the horizontal position adjustable board 43 be fixed on base 25, one side of described horizontal position adjustable board 43 is equipped with vertical position adjustable board 44, on this vertical position adjustable board 44, camera 45 is installed, the camera of described camera 45 is corresponding with the shooting hole on top board 27 and environmental cabinet 28.
Described environmental cabinet 28 integral body are welded to each other surrounded rectangular parallelepiped rectangular configuration by angle steel 281, be welded with respectively corrosion resistant plate 282 on it on end face and bottom surface, around it, sealing is fixed with side plate 283, the top of the side plate 283 of described environmental cabinet 28 1 sides is provided with opening, and described side plate 283 adopts transparent material to be made.
Described vertical stop means comprises sleeve 46, these sleeve 46 integral body are the tubular structure of hollow, its upper end is fixed on the upper end of Troffer 34, be provided with the slide block 47 coordinated with its piston-like in its inner tube, be fixed with position-limitting pin 48 on the periphery of described slide block 47, the periphery of described sleeve 46 inwardly axially offers stopper slot, and this stopper slot and position-limitting pin 48 closely are slidably matched.
Owing to having adopted above technical scheme, the utlity model has following beneficial effect: simple in structure, easy to use, can calculate accurately every data of four-point bending creep and stress relaxation experiment under the liquid medium environment, and processing and manufacturing is with low cost, be beneficial to further popularization in the field.
The accompanying drawing explanation
In order to be illustrated more clearly in the utility model, below in conjunction with accompanying drawing, embodiment is briefly described.
Fig. 1 is the structural representation of four-point bending creep test device in the utility model;
Fig. 2 is the partial structurtes schematic diagram of environmental cabinet in Fig. 1;
Fig. 3 is the structural representation of four-point bending stress relaxation experimental provision in the utility model;
Fig. 4 is the partial structurtes schematic diagram of Fig. 3;
Fig. 5 is the partial structurtes schematic diagram of environmental cabinet in Fig. 3.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, the accompanying drawing below in conjunction with in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment.
This embodiment is divided into four-point bending creep test device and two kinds of chargers of four-point bending stress relaxation experimental provision.
Referring to Fig. 1, four-point bending creep test device, it comprises base 1, one side of this base 1 is equipped with horizontal load device support 2, its other side is equipped with fixed support 3, the upper end face of described fixed support 3 is horizontally installed with top board 4, be fixed with environmental cabinet 5 above this top board 4, the bottom surface of described environmental cabinet 5 offers respectively concentric shooting hole with top board 4, be installed with push-down head 6 on the bottom surface of this environmental cabinet 5, described push-down head 6 is provided with seaming chuck 7, the upper end of this seaming chuck 7 is fixed with pressure transducer 8, the upper end of described pressure transducer 8 is fixed with compression leg 9, the upper end of described compression leg 9 is passed environmental cabinet 5 and is connected with link 10 by roller bearing, described compression leg 9 is equipped with compression leg sleeve 11 with environmental cabinet 5, the external diameter pull of the internal diameter laminating compression leg 9 of this compression leg sleeve 11 coordinates, the one side offers winding displacement hole 24, the output terminal of described pressure transducer 8 is connected with dynamic strain indicator 12, the input end of the other side of this dynamic strain indicator 12 is connected with displacement transducer 13, described displacement transducer 13 is arranged on environmental cabinet 5 and with compression leg 9 and contacts, the output terminal of described dynamic strain indicator 12 is connected with the input end of data-analyzing machine 14, the output terminal of described data-analyzing machine 14 is connected with pc computer 15, be provided with camera recording device in described fixed support 3, described camera recording device comprises the horizontal position adjustable board 16 be fixed on base 1, one side of described horizontal position adjustable board 16 is equipped with vertical position adjustable board 17, on this vertical position adjustable board 17, camera 18 is installed, the camera of described camera 18 is corresponding with the shooting hole on top board 4 and environmental cabinet 5, the upper end of described horizontal load device support 2 is rotationally connected by pin 19 and balance stem 20, one end of described balance stem 20 extends outward balance screw mandrel 21, this balance screw mandrel 21 is provided with and its counterbalance weight 22 that spins and coordinate, the other end of described balance stem 20 is through link 10, and with scale pan 23, be connected by lifting rope in its end.
Referring to Fig. 2, described environmental cabinet 5 integral body are welded to each other surrounded rectangular parallelepiped rectangular configuration by angle steel 51, be welded with respectively corrosion resistant plate 52 on it on end face and bottom surface, around it, sealing is fixed with side plate 53, the top of the side plate 53 of described environmental cabinet 5 one sides is provided with opening, and described side plate 53 adopts transparent material to be made.
Described seaming chuck 7 is made for aluminium.
Referring to Fig. 3, four-point bending stress relaxation experimental provision, it comprises base 25, fixed support 26 is installed above this base 25, the upper end face of described fixed support 26 is horizontally installed with top board 27, be fixed with environmental cabinet 28 above this top board 27, be fixed with Troffer 34 above described environmental cabinet 28, the bottom surface of described environmental cabinet 28 offers respectively concentric shooting hole with top board 27, be installed with push-down head 29 on the bottom surface of this environmental cabinet 28, described push-down head 29 is provided with seaming chuck 30, the upper end of this seaming chuck 30 is fixed with pressure transducer 31, the upper end of described pressure transducer 31 is fixed with compression leg 32, the upper end of described compression leg 32 extends in Troffer 34 through environmental cabinet 28, and contact with screw mandrel 35 by vertical stop means, the other end of described screw mandrel 35 is fixedly connected with handle 36 through Troffer 34, on described compression leg 32, displacement transducer 37 is installed, the data output end of described displacement sensor 37 and pressure transducer 31 is connected with the data input pin of dynamic strain indicator 38, the data output end of described dynamic strain indicator 38 is connected with the data input pin of data analyzer 39, the data output end of described data analyzer 39 is connected with the data input pin of pc computer 40, between described compression leg 32 and environmental cabinet 28, compression leg sleeve 41 is installed, the external diameter pull of the internal diameter laminating compression leg 32 of this compression leg sleeve 41 coordinates, the environmental cabinet 28 of one side offers winding displacement hole 42, this winding displacement hole 42 is positioned at Troffer 34, be provided with camera recording device in described fixed support 26, described camera recording device comprises the horizontal position adjustable board 43 be fixed on base 25, one side of described horizontal position adjustable board 43 is equipped with vertical position adjustable board 44, on this vertical position adjustable board 44, camera 45 is installed, the camera of described camera 45 is corresponding with the shooting hole on top board 27 and environmental cabinet 28.
Referring to Fig. 5, described environmental cabinet 28 integral body are welded to each other surrounded rectangular parallelepiped rectangular configuration by angle steel 281, be welded with respectively corrosion resistant plate 282 on it on end face and bottom surface, around it, sealing is fixed with side plate 283, the top of the side plate 283 of described environmental cabinet 28 1 sides is provided with opening, and described side plate 283 adopts transparent material to be made.
Referring to Fig. 4, described vertical stop means comprises sleeve 46, these sleeve 46 integral body are the tubular structure of hollow, its upper end is fixed on the upper end of Troffer 34, be provided with the slide block 47 coordinated with its piston-like in its inner tube, the upper surface of described slide block 47 withstands on the bottom surface of screw mandrel 35, its lower end and compression leg 32 are fixed into one, be fixed with position-limitting pin 48 on the periphery of described slide block 47, the periphery of described sleeve 46 inwardly axially offers stopper slot, and this stopper slot and position-limitting pin 48 closely are slidably matched.
Embodiment 1
Inject solvent in the environmental cabinet 5 of four-point bending creep test device, sample a is placed on push-down head 6, and adjusting seaming chuck 7 withstands on sample a it, then displacement transducer 13 is adjusted to and makes zero, open camera 18 and be convenient to real-time monitored and record, then on scale pan 23, add counterweight, the weight of counterweight is sent to pressure transducer 8 by balance stem 20, pressure transducer 8 feeds back to through dynamic strain indicator 12 and data-analyzing machine 14 the weight numerical value measured on pc computer 15, and guarantee sample a is exerted pressure constant, collect strain data by displacement transducer 13, when many Cracks appear in sample a, can stop experiment, accuracy for experimental data, can change sample a, repeated experiments several times, thereby obtain mean value accurately.
Embodiment 2
Inject solvent in the environmental cabinet 28 of four-point bending stress relaxation experimental provision, sample b is placed on push-down head 29, and adjusting seaming chuck 30 withstands on sample a it, then displacement transducer 37 is adjusted to and makes zero, open camera 45 and be convenient to real-time monitored and record, then turning handle 36 is exerted pressure by 35 pairs of slide blocks 47 of screw mandrel, slide block 47 changes into axle pressure vertically downward by the helical pressure of screw mandrel 35, compression leg 32 passes to axle pressure on seaming chuck 30 by pressure transducer 31, pressure transducer 31 feeds back to through dynamic strain indicator 38 and data-analyzing machine 39 the weight numerical value measured on pc computer 40 simultaneously, and guarantee sample b is exerted pressure constant, collect strain data by displacement transducer 37, when many Cracks appear in sample b, can stop experiment, accuracy for experimental data, can change sample b, repeated experiments several times, thereby obtain mean value accurately.
Finally it should be noted that: above embodiment only, in order to the technical solution of the utility model to be described, is not intended to limit; Although with reference to previous embodiment, the utility model is had been described in detail, those of ordinary skill in the art is to be understood that, its technical scheme that still can put down in writing aforementioned each embodiment is modified, or part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of each embodiment technical scheme of the utility model.
Claims (6)
1. four-point bending creep test device, it is characterized in that it comprises base (1), one side of this base (1) is equipped with horizontal load device support (2), its other side is equipped with fixed support (3), the upper end face of described fixed support (3) is horizontally installed with top board (4), be fixed with environmental cabinet (5) above this top board (4), the bottom surface of described environmental cabinet (5) offers respectively concentric shooting hole with top board (4), be installed with push-down head (6) on the bottom surface of this environmental cabinet (5), described push-down head (6) is provided with seaming chuck (7), the upper end of this seaming chuck (7) is fixed with pressure transducer (8), the upper end of described pressure transducer (8) is fixed with compression leg (9), the upper end of described compression leg (9) is passed environmental cabinet (5) and is connected with link (10) by roller bearing, described compression leg (9) is equipped with compression leg sleeve (11) with environmental cabinet (5), the external diameter pull of the internal diameter laminating compression leg (9) of this compression leg sleeve (11) coordinates, the one side offers winding displacement hole (24), the output terminal of described pressure transducer (8) is connected with dynamic strain indicator (12), the input end of the other side of this dynamic strain indicator (12) is connected with displacement transducer (13), described displacement transducer (13) is arranged on environmental cabinet (5) above and contacts with compression leg (9), the output terminal of described dynamic strain indicator (12) is connected with the input end of data-analyzing machine (14), the output terminal of described data-analyzing machine (14) is connected with pc computer (15), described fixed support is provided with camera recording device in (3), described camera recording device comprises the horizontal position adjustable board (16) be fixed on base (1), one side of described horizontal position adjustable board (16) is equipped with vertical position adjustable board (17), on this vertical position adjustable board (17), camera (18) is installed, the camera of described camera (18) is corresponding with the shooting hole on top board (4) and environmental cabinet (5), the upper end of described horizontal load device support (2) is rotationally connected by pin (19) and balance stem (20), one end of described balance stem (20) extends outward balance screw mandrel (21), this balance screw mandrel (21) is provided with and its counterbalance weight (22) that spins and coordinate, the other end of described balance stem (20) is through link (10), and with scale pan (23), be connected by lifting rope in its end.
2. four-point bending creep test device according to claim 1, it is characterized in that described environmental cabinet (5) integral body is welded to each other surrounded rectangular parallelepiped rectangular configuration by angle steel (51), be welded with respectively corrosion resistant plate (52) on it on end face and bottom surface, around it, sealing is fixed with side plate (53), the top of the side plate (53) of described environmental cabinet (5) one sides is provided with opening, and described side plate (53) adopts transparent material to be made.
3. four-point bending creep test device according to claim 1, is characterized in that described seaming chuck (7) is made for aluminium.
4. four-point bending stress relaxation experimental provision, it is characterized in that it comprises base (25), fixed support (26) is installed above this base (25), the upper end face of described fixed support (26) is horizontally installed with top board (27), be fixed with environmental cabinet (28) above this top board (27), be fixed with Troffer (34) above described environmental cabinet (28), the bottom surface of described environmental cabinet (28) offers respectively concentric shooting hole with top board (27), be installed with push-down head (29) on the bottom surface of this environmental cabinet (28), described push-down head (29) is provided with seaming chuck (30), the upper end of this seaming chuck (30) is fixed with pressure transducer (31), the upper end of described pressure transducer (31) is fixed with compression leg (32), the upper end of described compression leg (32) extends in Troffer (34) through environmental cabinet (28), and contact with screw mandrel (35) by vertical stop means, the other end of described screw mandrel (35) is fixedly connected with handle (36) through Troffer (34), displacement transducer (37) is installed on described compression leg (32), the data output end of described displacement sensor (37) and pressure transducer (31) is connected with the data input pin of dynamic strain indicator (38), the data output end of described dynamic strain indicator (38) is connected with the data input pin of data analyzer (39), the data output end of described data analyzer (39) is connected with the data input pin of pc computer (40), between described compression leg (32) and environmental cabinet (28), compression leg sleeve (41) is installed, the external diameter pull of the internal diameter laminating compression leg (32) of this compression leg sleeve (41) coordinates, the environmental cabinet of one side (28) offers winding displacement hole (42), this winding displacement hole (42) is positioned at Troffer (34), described fixed support is provided with camera recording device in (26), described camera recording device comprises the horizontal position adjustable board (43) be fixed on base (25), one side of described horizontal position adjustable board (43) is equipped with vertical position adjustable board (44), on this vertical position adjustable board (44), camera (45) is installed, the camera of described camera (45) is corresponding with the shooting hole on top board (27) and environmental cabinet (28).
5. four-point bending stress relaxation experimental provision according to claim 4, it is characterized in that described environmental cabinet (28) integral body is welded to each other surrounded rectangular parallelepiped rectangular configuration by angle steel (281), be welded with respectively corrosion resistant plate (282) on it on end face and bottom surface, around it, sealing is fixed with side plate (283), the top of the side plate (283) of described environmental cabinet (28) one sides is provided with opening, and described side plate (283) adopts transparent material to be made.
6. four-point bending stress relaxation experimental provision according to claim 4, it is characterized in that described vertical stop means comprises sleeve (46), this sleeve (46) integral body is the tubular structure of hollow, its upper end is fixed on the upper end of Troffer (34), be provided with the slide block (47) coordinated with its piston-like in its inner tube, be fixed with position-limitting pin (48) on the periphery of described slide block (47), the periphery of described sleeve (46) inwardly axially offers stopper slot, and this stopper slot and position-limitting pin (48) closely are slidably matched.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320417401 CN203350129U (en) | 2013-07-06 | 2013-07-06 | Polymer environment stress cracking experiment combined device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320417401 CN203350129U (en) | 2013-07-06 | 2013-07-06 | Polymer environment stress cracking experiment combined device |
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| CN203350129U true CN203350129U (en) | 2013-12-18 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103364262A (en) * | 2013-07-06 | 2013-10-23 | 郑州大学 | Combined experimental device for polymer environmental stress cracking |
| CN106124337A (en) * | 2016-08-08 | 2016-11-16 | 浙江工业大学 | A kind of for the test of rubber elastomer high-temerature creep and the device of stress relaxation test |
| CN107462406A (en) * | 2016-06-02 | 2017-12-12 | 北京航空航天大学 | The fixture of mechanical-moulded load test |
| CN107607399A (en) * | 2017-08-22 | 2018-01-19 | 西南石油大学 | A kind of passage pressure break support column bar mechanics parameter testing device and its characterizing method |
| EP3901608A1 (en) * | 2020-04-21 | 2021-10-27 | The Boeing Company | Compressive creep flow determination in fluids |
-
2013
- 2013-07-06 CN CN 201320417401 patent/CN203350129U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103364262A (en) * | 2013-07-06 | 2013-10-23 | 郑州大学 | Combined experimental device for polymer environmental stress cracking |
| CN103364262B (en) * | 2013-07-06 | 2016-06-01 | 郑州大学 | A kind of polymkeric substance environmental stress cracking experiment combined device |
| CN107462406A (en) * | 2016-06-02 | 2017-12-12 | 北京航空航天大学 | The fixture of mechanical-moulded load test |
| CN106124337A (en) * | 2016-08-08 | 2016-11-16 | 浙江工业大学 | A kind of for the test of rubber elastomer high-temerature creep and the device of stress relaxation test |
| CN106124337B (en) * | 2016-08-08 | 2023-03-31 | 浙江工业大学 | Device for high-temperature creep test and stress relaxation test of rubber elastomer |
| CN107607399A (en) * | 2017-08-22 | 2018-01-19 | 西南石油大学 | A kind of passage pressure break support column bar mechanics parameter testing device and its characterizing method |
| EP3901608A1 (en) * | 2020-04-21 | 2021-10-27 | The Boeing Company | Compressive creep flow determination in fluids |
| US11668633B2 (en) | 2020-04-21 | 2023-06-06 | The Boeing Company | Compressive creep flow determination in fluids |
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