CN204330472U - A kind of high temperature biaxial stress relaxation testing machine - Google Patents
A kind of high temperature biaxial stress relaxation testing machine Download PDFInfo
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- CN204330472U CN204330472U CN201520020052.5U CN201520020052U CN204330472U CN 204330472 U CN204330472 U CN 204330472U CN 201520020052 U CN201520020052 U CN 201520020052U CN 204330472 U CN204330472 U CN 204330472U
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Abstract
The utility model relates to Metal Materials At High Temperature strength testing facility technical field, be specially a kind of high temperature biaxial stress relaxation testing machine, comprise frame, exemplar clamping device is provided with in frame, electric heater unit is provided with outside exemplar clamping device, exemplar clamping device comprises upper chuck and lower chuck, lower chuck is fixedly connected with rotating disk, lower chuck is connected with the first wire rope, first wire rope is also connected to tensile loads mechanism, the circumferential side portion of rotating disk is provided with groove, groove is connected with the second positive wire rope and the second anti-wire rope, second positive wire rope and the second anti-wire rope are connected to balancing frame, balancing frame is connected with the 3rd wire rope, 3rd wire rope is also connected to torsion load maintainer, this testing machine also comprises eduction rod and lower eduction rod, upper eduction rod and lower eduction rod are also connected to tensile loads mechanism all simultaneously and reverse load maintainer, this testing machine can carry out the compound stress relaxation test of twin shaft high temperature and good stability simultaneously, precision is high, cost is low.
Description
Technical field
the utility model relates to Metal Materials At High Temperature strength testing facility technical field, is specially a kind of high temperature biaxial stress relaxation testing machine.
Background technology
the phenomenon that stress relaxation at high temperature occurs structured material is commonplace, and the fastening force as combustion gas turbine, steam turbine combined rotor or flange bolt at high temperature reduces gradually, and its theoretical and experimental investigations also more and more receives publicity; Traditional high-temperature stress relaxation testing machine generally adopts single shaft tension and compression load mode, and the theoretical research carrying out stress relaxation is also usually supposed based on simple stress, often the multiaxial loading that bears of structured material reality is simplified, its theoretical study results and reality quite different; In multiaxial loading, the most common with tension and torsion, corresponding high temperature compound stress relaxation testing machine waits development; Testing equipment stability of the prior art is good not, and the precision of test is also not high enough.
Utility model content
the purpose of this utility model is to provide a kind ofly can carry out the compound stress relaxation test of twin shaft high temperature and the high temperature biaxial stress relaxation testing machine that good stability, precision are high, cost is low simultaneously.
above-mentioned technical purpose of the present utility model is achieved by the following technical programs: a kind of high temperature biaxial stress relaxation testing machine, comprise frame, exemplar clamping device is provided with in frame, electric heater unit is provided with outside described exemplar clamping device, described exemplar clamping device comprises upper chuck and to be positioned at below described upper chuck and the lower chuck be oppositely arranged with described upper chuck, described upper chuck is fixed in frame, the bottom part of described lower chuck is fixedly connected with the rotating disk of the toroidal that card is arranged towards above-below direction, the bottom of described lower chuck is also connected with the first wire rope extended downward, the other end of described first wire rope is connected to tensile loads mechanism, the circumferential side portion of described rotating disk is provided with groove, described groove is connected with the second positive wire rope and the second anti-wire rope oppositely arranged, described second positive wire rope and described second anti-wire rope respectively by rack-mounted positive fixed pulley and the changed course of anti-fixed pulley backward under be connected to the balancing frame that card arranges towards above-below direction, described balancing frame is connected with the 3rd wire rope extended downward, the other end of described 3rd wire rope is connected to torsion load maintainer, this testing machine also to comprise on the exemplar that acts on and be clamped between described upper chuck and described lower chuck and upper eduction rod setting up and down and lower eduction rod, described upper eduction rod is also connected to described tensile loads mechanism and described torsion load maintainer simultaneously, described lower eduction rod is also connected to described tensile loads mechanism and described torsion load maintainer simultaneously.
in technique scheme, maneuverability and the globality of total are better, structure is firm stable more, good stability during test, the precision of test structure and authenticity are all increased substantially, the damage caused itself in machine use procedure is less, cost is also lower, exemplar clamping device can through living exemplar, it is made to be in vertical state, improve stability and the precision of test, on the one hand simultaneously, by the set of system of the first wire rope and tensile loads mechanism, means of constant strain-tensile test can be carried out, on the other hand, pass through rotating disk, second positive wire rope and the second anti-wire rope, positive fixed pulley and anti-fixed pulley, balancing frame, the set of system of the 3rd wire rope and torsion load maintainer, distorting stress relaxation test can be carried out, two tests can be carried out simultaneously, and be knockdown relation each other, test simultaneously and not only can not mutually disturb, and closer to the emulation mode of reality, and two between cover system by the design of lower chuck all structure, compatible better, to the precision measured, stability and authenticity have great help, the automaticity being arranged to test and the precision of upper eduction rod and lower eduction rod can improve further, some automatic control equipments can be set in tensile loads mechanism and torsion load maintainer, robotization is tight again more to form one, complete control system, omnidistance tracking and analysis are carried out to whole process of the test and result.
as to preferably of the present utility model, frame comprises column and crossbeam, and the bottom of described column is fixed on flat bed, and the position, top of upper chuck is fixed on crossbeam.The overall construction intensity of warranty test machine and the stability of operation, promote the authenticity of precision and the test effect measured, reduce the damage of equipment itself.
as to preferably of the present utility model, tensile loads mechanism comprises and being connected and the right transverse axis frame extended to the right with the first wire rope, be fixedly connected with and the right longitudinal axis frame also extended upward perpendicular to described right transverse axis frame with the position of described right transverse axis frame by the first wire rope far-end, the top of described right longitudinal axis frame is provided with the right transverse arm of accumbency, the right-hand member that described right transverse arm is positioned at right longitudinal axis frame is provided with right motor, the output shaft of described right motor is towards left and be connected with right leading screw, the left end described right leading screw being positioned at right longitudinal axis frame is provided with mobile weight, the end that is fixedly connected with of described right transverse axis frame and described right longitudinal axis frame is articulated with on the right support abutment that is arranged on flat bed, described tensile loads mechanism also comprises the right controller that output terminal is electrically connected with described right motor, be electrically connected with the input end of described right controller and the elongation detecting device be all electrically connected with upper eduction rod and lower eduction rod.
in above-mentioned optimal way, right controller can adopt existing custom microprocessor, extend the sensor that detecting device can adopt existing routine, make the Stability Analysis of Structures of whole tensile testing system and intensity higher, convenient operation, measuring accuracy is higher, the authenticity of test structure is stronger, can referential very superior, realize closed-loop control loading system, structural design is more reasonable, cost of manufacture is also low, in process of the test, the upper eduction rod be arranged on exemplar is connected with elongation detecting device respectively with lower eduction rod, right controller controls right electric machine rotation by receiving the signal extending detecting device, when extending displacement and increasing, mobile weight moves under right motor effect, ensure that original strain is constant by alleviating load, and the computing of various test data is carried out by right controller, record, process, display etc., improve the automaticity of test and the validity of test.
as to preferably of the present utility model, reverse load maintainer comprise be connected with the 3rd wire rope and the left transverse axis frame extended to the left, be fixedly connected with and the left longitudinal axis frame also extended upward perpendicular to described left transverse axis frame with the position of described left transverse axis frame by the 3rd wire rope far-end, the top of described left longitudinal axis frame is provided with the left transverse arm of accumbency, the left end that described left transverse arm is positioned at left longitudinal axis frame is provided with left motor, the output shaft of described left motor is towards right and be connected with left leading screw, the right-hand member described left leading screw being positioned at left longitudinal axis frame is also provided with mobile weight, the end that is fixedly connected with of described left transverse axis frame and described left longitudinal axis frame is articulated with on the left support abutment that is arranged on flat bed, described torsion load maintainer also comprises the left controller that output terminal is electrically connected with described left motor, be electrically connected with the input end of described left controller and the roll angle inspection device be all electrically connected with upper eduction rod and lower eduction rod.
in above-mentioned optimal way, left controller can adopt existing custom microprocessor, roll angle inspection device can adopt the sensor of existing routine, make the Stability Analysis of Structures of whole Torsional Experiment System and intensity higher, convenient operation, measuring accuracy is higher, the authenticity of test structure is stronger, can referential very superior, realize closed-loop control loading system, structural design is more reasonable, cost of manufacture is also low, in process of the test, the upper eduction rod be arranged on exemplar is connected with roll angle inspection device respectively with lower eduction rod, left controller controls left electric machine rotation by the signal receiving roll angle inspection device, when corner increases, mobile weight moves under left motor effect, ensure that original strain is constant by alleviating load, and the computing of various test data is carried out by left controller, record, process, display etc., improve the automaticity of test and the validity of test, and this Torsional Experiment System coordinates aforesaid tensile testing system, the profit relaxation test of twin axle can be completed, both amalgamations are better, that equipment can bring up to suitable level for the authenticity of measuring accuracy and test compared to tradition.
as to preferably of the present utility model, upper chuck comprises the upper erection part of fixing with crossbeam and is connected and bayonet socket upper fastening portion down with the lower end one of described upper erection part, and lower chuck comprises the lower erection part of fixing with rotating disk and is integrally connected with the upper end of described lower erection part and the lower fastening portion that is oppositely arranged upward and with upper fastening portion of bayonet socket.This preferably makes stability and the strength enhancing of structure, for stressed distribution more rationally also more closer to reality, effective precision and authenticity improving test, upper erection part and the link position of upper fastening portion are preferably in the center position of upper fastening portion and relative up and down with bayonet socket position, upper erection part and upper fastening portion entirety are in vertical configuration, lower erection part and the link position of lower fastening portion are preferably in the center position of lower fastening portion and relative up and down with bayonet socket position, and lower erection part and lower fastening portion entirety are in vertical configuration.
as to preferably of the present utility model, upper eduction rod and lower eduction rod are all perpendicular to exemplar.Improve test accuracy and authenticity.
as to preferably of the present utility model, balancing frame is square-shaped, described balancing frame one of them to two of angular direction positions, diagonal angle, wire rope positive with second and the second anti-wire rope are connected respectively, another of described balancing frame is provided with guidepost to two of angular direction positions, diagonal angle, and frame is provided with and supplies guidepost to carry out the orienting sleeve led.Be beneficial to processing, install, and stressed distribution is better more realistic, the stability of structure improves further, and test occurs that the incidence of abnormal situation reduces greatly, tests more smooth, and less to the damage of equipment itself.
as to preferably of the present utility model, electric heater unit is electric furnace and has automatic constant-temperature regulating device.Improve analogue simulation, improve the precision of test and the authenticity of test structure.
as to preferably of the present utility model, lower chuck is fixedly connected with rotating disk the central area that position is positioned at described rotating disk.Further raising structural strength and stability, the simultaneously precision of lifting test and authenticity.
as to preferably of the present utility model, the connecting portion of the 3rd wire rope and balancing frame is positioned at the middle section of described balancing frame.Further raising structural strength and stability, the simultaneously precision of lifting test and authenticity.
the beneficial effects of the utility model: this testing machine achieves the tension and torsion stress relaxation test of twin axle under high temperature, and closed-loop control can be adopted to load, reasonable in design, cost of manufacture is low; The physical property of total is more superior, good operation stability, the precision of test and the authenticity of measurement result quite high, equipment also durable more itself.
Accompanying drawing explanation
fig. 1 is the structural representation of the utility model embodiment;
fig. 2 is the A-A sectional view of Fig. 1;
fig. 3 is the fundamental diagram of the utility model embodiment.
in figure: 1, frame, 8, electric heater unit, 3, upper chuck, 4, lower chuck, 6, rotating disk, 7, first wire rope, 9, tensile loads mechanism, 10, second positive wire rope, 1010, second anti-wire rope, 11, positive fixed pulley, 1111, anti-fixed pulley, 12, balancing frame, 13, 3rd wire rope, 14, reverse load maintainer, 34, exemplar, 15, upper eduction rod, 16, lower eduction rod, 55, column, 5, crossbeam, 2, flat bed, 91, right transverse axis frame, 92, right longitudinal axis frame, 93, right transverse arm, 21, right motor, 23, right leading screw, 230, mobile weight, 200, right support abutment, 19, right controller, 17, extend detecting device, 94, left transverse axis frame, 95, left longitudinal axis frame, 96, left transverse arm, 22, left motor, 2323, left leading screw, 201, left support abutment, 20, left controller, 18, roll angle inspection device, 31, upper erection part, 32, upper fastening portion, 41, lower erection part, 42, lower fastening portion, 24, guidepost, 240, orienting sleeve.
Embodiment
following specific embodiment is only to explanation of the present utility model; it is not to restriction of the present utility model; those skilled in the art can make to the present embodiment the amendment not having creative contribution as required after reading this instructions, as long as but be all subject to the protection of Patent Law in right of the present utility model.
embodiment, as Fig. 1, 2, shown in 3, a kind of high temperature biaxial stress relaxation testing machine, comprise frame 1, exemplar clamping device is provided with in frame 1, electric heater unit 8 is provided with outside described exemplar clamping device, described exemplar clamping device comprises upper chuck 3 and to be positioned at below described upper chuck 3 and the lower chuck 4 be oppositely arranged with described upper chuck 3, described upper chuck 3 is fixed in frame 1, the bottom part of described lower chuck 4 is fixedly connected with the rotating disk 6 of the toroidal that card is arranged towards above-below direction, described lower chuck 4 can preferably adopt key to be connected with described rotating disk 6 or weld, the bottom of described lower chuck 4 is also connected with the first wire rope 7 extended downward, the other end of described first wire rope 7 is connected to tensile loads mechanism 9, the circumferential side portion of described rotating disk 6 is provided with groove, described groove is connected with the second positive wire rope 10 and the second anti-wire rope 1010 oppositely arranged, described second positive wire rope 10 and described second anti-wire rope 1010 respectively by the positive fixed pulley 11 be arranged in frame 1 and anti-fixed pulley 1111 alter course backward under be connected to the balancing frame 12 that card arranges towards above-below direction, described balancing frame 12 is connected with the 3rd wire rope 13 extended downward, the other end of described 3rd wire rope 13 is connected to and reverses load maintainer 14, this testing machine also to comprise on the exemplar 34 that acts on and be clamped between described upper chuck 3 and described lower chuck 4 and upper eduction rod 15 setting up and down and lower eduction rod 16, described upper eduction rod 15 is also connected to described tensile loads mechanism 9 and described torsion load maintainer 14 simultaneously, described lower eduction rod 16 is also connected to described tensile loads mechanism 9 and described torsion load maintainer 14 simultaneously.Frame 1 comprises column 55 and crossbeam 5, and the bottom of described column 55 is fixed on flat bed 2, and the position, top of upper chuck 3 is fixed on crossbeam 5.Upper chuck 3 comprises the upper erection part 31 fixing with crossbeam 5 and is connected and bayonet socket upper fastening portion 32 down with the lower end one of described upper erection part 31, and lower chuck 4 comprises the lower erection part 41 fixing with rotating disk 6 and is integrally connected with the upper end of described lower erection part 41 and the lower fastening portion 42 that is oppositely arranged upward and with upper fastening portion 32 of bayonet socket.Upper eduction rod 15 and lower eduction rod 16 are all perpendicular to exemplar 34.Balancing frame 12 is square-shaped, described balancing frame 12 one of them to two of angular direction positions, diagonal angle, wire rope 10 positive with second and the second anti-wire rope 1010 are connected respectively, another of described balancing frame 12 is provided with guidepost 24 to two of angular direction positions, diagonal angle, and frame 1 is provided with and supplies guidepost 24 to carry out the orienting sleeve 240 led.Electric heater unit 8 is electric furnace and has automatic constant-temperature regulating device.Lower chuck 4 is fixedly connected with rotating disk 6 the central area that position is positioned at described rotating disk 6.3rd wire rope 13 and the connecting portion of balancing frame 12 are positioned at the middle section of described balancing frame 12.
tensile loads mechanism 9 comprises and being connected and the right transverse axis frame 91 extended to the right with the first wire rope 7, be fixedly connected with and the right longitudinal axis frame 92 also extended upward perpendicular to described right transverse axis frame 91 with the position of described right transverse axis frame 91 by the first wire rope 7 far-end, the top of described right longitudinal axis frame 92 is provided with the right transverse arm 93 of accumbency, the right-hand member that described right transverse arm 93 is positioned at right longitudinal axis frame 92 is provided with right motor 21, the output shaft of described right motor 21 is towards left and be connected with right leading screw 23, the left end described right leading screw 23 being positioned at right longitudinal axis frame 92 is provided with mobile weight 230, the end that is fixedly connected with of described right transverse axis frame 91 and described right longitudinal axis frame 92 is articulated with on the right support abutment 200 that is arranged on flat bed 2, described tensile loads mechanism 9 also comprises the right controller 19 that output terminal is electrically connected with described right motor 21, be electrically connected with the input end of described right controller 19 and the elongation detecting device 17 be all electrically connected with upper eduction rod 15 and lower eduction rod 16.Reverse load maintainer 14 comprise be connected with the 3rd wire rope 13 and the left transverse axis frame 94 extended to the left, be fixedly connected with and the left longitudinal axis frame 95 also extended upward perpendicular to described left transverse axis frame 94 with the position of described left transverse axis frame 94 by the 3rd wire rope 13 far-end, the top of described left longitudinal axis frame 95 is provided with the left transverse arm 96 of accumbency, the left end that described left transverse arm 96 is positioned at left longitudinal axis frame 95 is provided with left motor 22, the output shaft of described left motor 222 is towards right and be connected with left leading screw 2323, the right-hand member described left leading screw 2323 being positioned at left longitudinal axis frame 95 is also provided with mobile weight 230, the end that is fixedly connected with of described left transverse axis frame 94 and described left longitudinal axis frame 95 is articulated with on the left support abutment 201 that is arranged on flat bed 2, described torsion load maintainer 14 also comprises the left controller 20 that output terminal is electrically connected with described left motor 22, be electrically connected with the input end of described left controller 20 and the roll angle inspection device 18 be all electrically connected with upper eduction rod 15 and lower eduction rod 16.
Claims (10)
1. a high temperature biaxial stress relaxation testing machine, comprise frame (1), it is characterized in that: frame is provided with exemplar clamping device in (1), electric heater unit (8) is provided with outside described exemplar clamping device, described exemplar clamping device comprises upper chuck (3) and is positioned at described upper chuck (3) below and the lower chuck (4) be oppositely arranged with described upper chuck (3), described upper chuck (3) is fixed in frame (1), the bottom part of described lower chuck (4) is fixedly connected with the rotating disk (6) of the toroidal that card is arranged towards above-below direction, the bottom of described lower chuck (4) is also connected with the first wire rope (7) extended downward, the other end of described first wire rope (7) is connected to tensile loads mechanism (9), the circumferential side portion of described rotating disk (6) is provided with groove, described groove is connected with the second positive wire rope (10) and the second anti-wire rope (1010) that oppositely arrange, described second positive wire rope (10) and described second anti-wire rope (1010) respectively by the positive fixed pulley (11) be arranged in frame (1) and anti-fixed pulley (1111) alter course backward under be connected to the balancing frame (12) that card arranges towards above-below direction, described balancing frame (12) is connected with the 3rd wire rope (13) extended downward, the other end of described 3rd wire rope (13) is connected to and reverses load maintainer (14), this testing machine also comprises acting on and is clamped in exemplar (34) between described upper chuck (3) and described lower chuck (4) upper and upper eduction rod (15) setting up and down and lower eduction rod (16), described upper eduction rod (15) is also connected to described tensile loads mechanism (9) and described torsion load maintainer (14) simultaneously, described lower eduction rod (16) is also connected to described tensile loads mechanism (9) and described torsion load maintainer (14) simultaneously.
2. a kind of high temperature biaxial stress relaxation testing machine according to claim 1, it is characterized in that: frame (1) comprises column (55) and crossbeam (5), the bottom of described column (55) is fixed on flat bed (2), and the position, top of upper chuck (3) is fixed on crossbeam (5).
3. a kind of high temperature biaxial stress relaxation testing machine according to claim 2, it is characterized in that: tensile loads mechanism (9) comprises and being connected and the right transverse axis frame (91) extended to the right with the first wire rope (7), to be fixedly connected with by the position of the first wire rope (7) far-end with described right transverse axis frame (91) and perpendicular to described right transverse axis frame (91) and the right longitudinal axis frame (92) extended upward, the top of described right longitudinal axis frame (92) is provided with the right transverse arm (93) of accumbency, the right-hand member that described right transverse arm (93) is positioned at right longitudinal axis frame (92) is provided with right motor (21), the output shaft of described right motor (21) is towards left and be connected with right leading screw (23), the left end described right leading screw (23) being positioned at right longitudinal axis frame (92) is provided with mobile weight (230), the end that is fixedly connected with of described right transverse axis frame (91) and described right longitudinal axis frame (92) is articulated with on the right support abutment (200) that is arranged on flat bed (2), described tensile loads mechanism (9) also comprises the right controller (19) that output terminal is electrically connected with described right motor (21), be electrically connected with the input end of described right controller (19) and the elongation detecting device (17) be all electrically connected with upper eduction rod (15) and lower eduction rod (16).
4. a kind of high temperature biaxial stress relaxation testing machine according to claim 3, it is characterized in that: reverse load maintainer (14) comprise be connected with the 3rd wire rope (13) and the left transverse axis frame (94) extended to the left, to be fixedly connected with by the position of the 3rd wire rope (13) far-end with described left transverse axis frame (94) and perpendicular to described left transverse axis frame (94) and the left longitudinal axis frame (95) extended upward, the top of described left longitudinal axis frame (95) is provided with the left transverse arm (96) of accumbency, the left end that described left transverse arm (96) is positioned at left longitudinal axis frame (95) is provided with left motor (22), the output shaft of described left motor (222) is towards right and be connected with left leading screw (2323), the right-hand member described left leading screw (2323) being positioned at left longitudinal axis frame (95) is also provided with mobile weight (230), the end that is fixedly connected with of described left transverse axis frame (94) and described left longitudinal axis frame (95) is articulated with on the left support abutment (201) that is arranged on flat bed (2), described torsion load maintainer (14) also comprises the left controller (20) that output terminal is electrically connected with described left motor (22), be electrically connected with the input end of described left controller (20) and the roll angle inspection device (18) be all electrically connected with upper eduction rod (15) and lower eduction rod (16).
5. a kind of high temperature biaxial stress relaxation testing machine according to claim 1 or 2 or 3 or 4, it is characterized in that: upper chuck (3) comprises the upper erection part (31) fixing with crossbeam (5) and is connected and bayonet socket upper fastening portion down (32) with the lower end one of described upper erection part (31), lower chuck (4) comprises the lower erection part (41) fixing with rotating disk (6) and is integrally connected with the upper end of described lower erection part (41) and the lower fastening portion (42) that is oppositely arranged upward and with upper fastening portion (32) of bayonet socket.
6. a kind of high temperature biaxial stress relaxation testing machine according to claim 5, is characterized in that: upper eduction rod (15) and lower eduction rod (16) are all perpendicular to exemplar (34).
7. a kind of high temperature biaxial stress relaxation testing machine according to claim 1 or 2 or 3 or 4, it is characterized in that: balancing frame (12) is square-shaped, described balancing frame (12) one of them to two of angular direction positions, diagonal angle, wire rope (10) positive with second and the second anti-wire rope (1010) are connected respectively, another of described balancing frame (12) is provided with guidepost (24) to two of angular direction positions, diagonal angle, and frame (1) is provided with and supplies guidepost (24) to carry out the orienting sleeve (240) led.
8. a kind of high temperature biaxial stress relaxation testing machine according to claim 1 or 2 or 3 or 4, is characterized in that: electric heater unit (8) is for electric furnace and have automatic constant-temperature regulating device.
9. a kind of high temperature biaxial stress relaxation testing machine according to claim 1 or 2 or 3 or 4, is characterized in that: lower chuck (4) is fixedly connected with rotating disk (6) the central area that position is positioned at described rotating disk (6).
10. a kind of high temperature biaxial stress relaxation testing machine according to claim 1 or 2 or 3 or 4, is characterized in that: the 3rd wire rope (13) is positioned at the middle section of described balancing frame (12) with the connecting portion of balancing frame (12).
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| CN201520020052.5U CN204330472U (en) | 2015-01-13 | 2015-01-13 | A kind of high temperature biaxial stress relaxation testing machine |
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| CN201520020052.5U CN204330472U (en) | 2015-01-13 | 2015-01-13 | A kind of high temperature biaxial stress relaxation testing machine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104568569A (en) * | 2015-01-13 | 2015-04-29 | 湖州职业技术学院 | High-temperature biaxial stress relaxation testing machine |
| CN106248505A (en) * | 2016-10-05 | 2016-12-21 | 宁波兴业盛泰集团有限公司 | A kind of stress relaxation test device and test method |
-
2015
- 2015-01-13 CN CN201520020052.5U patent/CN204330472U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104568569A (en) * | 2015-01-13 | 2015-04-29 | 湖州职业技术学院 | High-temperature biaxial stress relaxation testing machine |
| CN106248505A (en) * | 2016-10-05 | 2016-12-21 | 宁波兴业盛泰集团有限公司 | A kind of stress relaxation test device and test method |
| CN106248505B (en) * | 2016-10-05 | 2018-03-27 | 宁波兴业盛泰集团有限公司 | A kind of stress relaxation test device and test method |
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| CF01 | Termination of patent right due to non-payment of annual fee |