CN101598648A - Double space material cold-heat simulation experiment device - Google Patents

Double space material cold-heat simulation experiment device Download PDF

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Publication number
CN101598648A
CN101598648A CNA2009101038734A CN200910103873A CN101598648A CN 101598648 A CN101598648 A CN 101598648A CN A2009101038734 A CNA2009101038734 A CN A2009101038734A CN 200910103873 A CN200910103873 A CN 200910103873A CN 101598648 A CN101598648 A CN 101598648A
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China
Prior art keywords
clamping
lifting frame
lifting
heat
cold
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CNA2009101038734A
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Chinese (zh)
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CN101598648B (en
Inventor
孙智富
罗静
张微
王春欢
詹捷
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Chongqing University of Technology
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Chongqing University of Technology
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Priority to CN2009101038734A priority Critical patent/CN101598648B/en
Publication of CN101598648A publication Critical patent/CN101598648A/en
Application granted granted Critical
Publication of CN101598648B publication Critical patent/CN101598648B/en
Expired - Fee Related legal-status Critical Current
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Abstract

The invention discloses double space material cold-heat simulation experiment device, the experimental provision body is provided with clamping device, lifting boosting mechanism, heating and heat-insulating device, fixed station and lifting frame, clamping device is made up of clamping device upper body and clamping device lower body, the clamping device upper body is arranged on the lifting frame, move up and down in company with the lifting frame, the clamping device lower body is arranged on the fixed station; The lower end of lifting frame is connected with the lifting boosting mechanism, moves up and down under the lifting boosting mechanism drives, and the lifting frame passes fixed station, and the lifting frame platform that is fixed is separated into work space and following work space; Several power that is connected with signal processing system and displacement transducers are set on the experimental provision body.Experimental provision of the present invention has advantages such as simple in structure, easy to operate, that cost is lower, can be widely used in research institutions, institution of higher learning and industrial and mining enterprises and carry out metal especially light alloy material heat, cold forming Mechanical Properties.

Description

Double space material cold-heat simulation experiment device
Technical field
The present invention relates to the cold and hot analogue experiment installation of a kind of metal material, be applicable to metal and alloy, particularly the stretching under high temperature and the utmost point cold state and the double space material cold-heat simulation experiment device of Compressive Mechanical Properties at normal temperature.
Background technology
Material under extreme condition of work the mechanical property of (as high temperature and utmost point cold state) owing to be subjected to the influence of particular surroundings factor and can not measure easily, and guarantee that the mechanical property of relevant material under extreme condition of work still can satisfy member mechanics needs, just must under high temperature and utmost point cold state, carry out simulated experiment, with the mechanical property of accurate grasp material under extreme condition of work.At present the widely used equipment in this field is Gleeble series of heat analogue means, and Gleeble series of heat analogue means can carry out the test of aspects such as drawing by high temperature, high temperature compressed, welding heat affected zone simulation, and the accuracy of measurement result is very high.Yet this import equipment costs an arm and a leg at present, and the domestic unit that has this equipment is few, therefore entrusts the required experimental expenses of experiment high, and entrusts the unit that experimentizes more, and what need to wait for is chronic; Especially the required sample number of this field correlative study is a lot, and this has just increased research expenditure and time greatly; In addition, this kind device structure is complicated, operation bothers relatively, in case the maintenance that produces after the fault is a big problem.
Summary of the invention
The present invention is directed to that the cold and hot analogue experiment installation structure of bimetallic material of the prior art is complicated, operation bothers, cost an arm and a leg, the higher deficiency that can not satisfy the needs of correlative study of experimental expenses, a kind of double space material cold-heat simulation experiment device simple in structure, easy to operate, lower-cost is provided.
Double space material cold-heat simulation experiment device of the present invention, comprise the experimental provision body, it is characterized in that: described experimental provision body is provided with clamping device, lifting boosting mechanism, heating and heat-insulating device, fixed station and lifting frame, clamping device is made up of clamping device upper body and clamping device lower body, the clamping device upper body is arranged on the lifting frame, move up and down in company with the lifting frame, the clamping device lower body is arranged on the fixed station; The lower end of lifting frame is connected with the lifting boosting mechanism, moves up and down under the lifting boosting mechanism drives, and the lifting frame passes fixed station, and the lifting frame platform that is fixed is separated into work space and following work space; Several power that is connected with signal processing system and displacement transducers are set on the experimental provision body.
Further feature is: the lower end of lifting frame is provided with push pedal, and push pedal is connected with the lifting boosting mechanism; Form work space down between push pedal and the fixed station.
The cooled with liquid nitrogen device is set on the experimental provision body, and the cooled with liquid nitrogen device cools to being arranged on test specimen on the clamping device or that be arranged on down in the work space.
Double space material cold-heat simulation experiment device of the present invention, have advantages such as simple in structure, easy to operate, that cost is lower, can be widely used in research institutions, institution of higher learning and industrial and mining enterprises and carry out metal especially light alloy material heat, cold forming Mechanical Properties.
Description of drawings
The present invention is further illustrated below in conjunction with accompanying drawing:
Fig. 1 is the double space material cold-heat simulation experiment device structural drawing.
In Fig. 1, work space, 9-temperature controller, 10-signal processing system under 1-test specimen, 2-clamping device, 3-lifting boosting mechanism, 4-heating and heat-insulating device, 5-push pedal, 6-power and displacement transducer, the last work space of 7-, the 8-, 11-experimental provision body, the 12-fixed station, 13-lifting frame, 21-clamping device upper body, 22-clamping device lower body.
Embodiment
Double space material cold-heat simulation experiment device of the present invention, comprise experimental provision body 11, experimental provision body 11 is provided with clamping device 2, lifting boosting mechanism 3, heating and heat-insulating device 4, fixed station 12 and lifting frame 13, clamping device 2 is made up of clamping device upper body 21 and clamping device lower body 22, the upper and lower side of test specimen 1 is connected between clamping device upper body 21 and the clamping device lower body 22, clamping device upper body 21 is arranged on the lifting frame 13, move up and down in company with lifting frame 13, clamping device lower body 22 is arranged on the fixed station 12 and does not move up and down.The lower end of lifting frame 13 is connected with lifting boosting mechanism 3, under driving, lifting boosting mechanism 3 moves up and down, lifting frame 13 passes fixed station 12, lifting frame 13 platform 12 that is fixed is separated into work space 7 and following work space 8, carries out stretching experiment or is descending work space 8 to carry out compression experiment at last work space 7.Clamping device 2, heating and heat-insulating device 4 are arranged in the lifting frame 13, lifting boosting mechanism 3 is arranged on down usually in the work space 8 and (also can be arranged on down above the work space 8 or the outside), heating and heat-insulating device 4 is arranged in clamping device 2 next doors or the following work space 8, heating being arranged on test specimen 1 on the clamping device 2 or that be arranged on following work space 8 under the control action of temperature controller 9, reach the temperature and the insulation of technological requirement, the test specimen 1 that is arranged on work space 7 and following work space 8 is carried out stretching experiment or compression experiment at a certain temperature.For signals such as translational speed, stretching strength size are delivered in the signal processing system 10, with be arranged on the lifting frame 13 on the clamping device 2 or several power of other proper site be connected with signal processing system 10 with displacement transducer 6, power and displacement signal are transported in the signal processing system 10.
Operation is provided with push pedal 5 in the lower end of lifting frame 13 for convenience, and push pedal 5 is connected with lifting boosting mechanism 3; Form work space 8 down between push pedal 5 and the fixed station 12, test specimen 1 carries out compression experiment at following work space 8 at a certain temperature.
In order to make analogue experiment installation of the present invention can produce low temperature, can carry out simulated experiment in utmost point cold deformation condition to material, the cooled with liquid nitrogen device is set on experimental provision body 11, the cooled with liquid nitrogen device is arranged in clamping device 2 next doors or the following work space 8, the cooled with liquid nitrogen device cools to being arranged on test specimens 1 on the clamping device 2 or that be arranged on down in the work space 8, carries out simulated experiment after meeting the requirements of temperature.
Double space material cold-heat simulation experiment device of the present invention, its hot-stretch principle of work is:
(1) clamps sample, utilize the resistance wire heating furnace that sample to be tested is heated (950 ℃ of maximum temperatures), when temperature reaches requirement, be incubated;
(2) by lifting pressure mechanism the lifting frame is exerted pressure, move upward, drive the clamping device upper body and move upward, the sample that is clamped in the clamping device upper and lower body is stretched thereby drive the lifting frame;
(3) utilize sensor that the load that puts on sample and the displacement of pull head are measured, simultaneously the graph of a relation of output load and displacement on display screen;
(4) with the load in the hot-stretch process and displacement input related software, according to the physical length of sample through converting the true stress-true strain curve map of output material.
The principle of work of hot compression experiment is similar to the hot-stretch experiment, is equally to utilize pressure mechanism to promote push pedal to move upward, and just compression experiment carries out in the following space of device.Material is carried out simulated experiment in utmost point cold deformation condition, mainly change the heating furnace in the thermal simulation experiment device into liquid nitrogen plan, to realize the distortion environment of low temperature.Its stretching, compression experiment step are identical with the thermal simulation process.
Measure temperature range: 0~950 ℃;
Maximum load: 20000N;
Adopt the load transducer measuring error: ± 3%;
Adopt the displacement sensor error: ± 3%.
The course of work of experimental provision of the present invention: test specimen 1 is clamped on the clamping device 2, heating and heat-insulating device 4 is opened, test specimen 1 is arranged in work space 7 or the following work space 8, test specimen 1 is clamped between the clamping device upper body 21 and clamping device lower body 22 of clamping device 2 during tension test, the 1 heating back insulation of 4 pairs of test specimens of heating and heat-insulating device, the temperature of temperature controller 9 control test specimens 1 is to setting value, start lifting boosting mechanism 3, carry out stretching experiment or carry out compression experiment at last work space 7 at following work space 8, signal by power and displacement transducer 6 acquisition power and displacement, through signal processing system 10 analyses and demonstration experimental result, the load (power) and the displacement signal of power and 6 collections of displacement display are analyzed and demonstration by signal processing system 10 again, print.
Double space material cold-heat simulation experiment device of the present invention can be widely used in research institutions, institution of higher learning and industrial and mining enterprises and carry out metal especially light alloy material heat, cold forming Mechanical Properties.

Claims (3)

1, double space material cold-heat simulation experiment device, comprise experimental provision body (11), it is characterized in that: described experimental provision body (11) is provided with clamping device (2), lifting boosting mechanism (3), heating and heat-insulating device (4), fixed station (12) and lifting frame (13), clamping device (2) is made up of clamping device upper body (21) and clamping device lower body (22), clamping device upper body (21) is arranged on the lifting frame (13), move up and down in company with lifting frame (13), clamping device lower body (22) is arranged on the fixed station (12); The lower end of lifting frame (13) is connected with lifting boosting mechanism (3), under driving, lifting boosting mechanism (3) moves up and down, lifting frame (13) passes fixed station (12), and lifting frame (13) platform (12) that is fixed is separated into work space (7) and following work space (8); Heating and heat-insulating device (4) carries out heat tracing to being arranged on test specimen (1) on the clamping device (2) or that be arranged on down in the work space (8); Several power that is connected with signal processing system (10) and displacement transducers (6) are set on experimental provision body (11).
2, double space material cold-heat simulation experiment device according to claim 1 is characterized in that: in the lower end of lifting frame (13) push pedal (5) is set, push pedal (5) is connected with lifting boosting mechanism (3); Form work space (8) down between push pedal (5) and the fixed station (12).
3, double space material cold-heat simulation experiment device according to claim 1 and 2, it is characterized in that: on experimental provision body (11) the cooled with liquid nitrogen device is set, the cooled with liquid nitrogen device cools to being arranged on test specimen (1) on the clamping device (2) or that be arranged on down in the work space (8).
CN2009101038734A 2009-05-15 2009-05-15 Double space material cold-heat simulation experiment device Expired - Fee Related CN101598648B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009101038734A CN101598648B (en) 2009-05-15 2009-05-15 Double space material cold-heat simulation experiment device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009101038734A CN101598648B (en) 2009-05-15 2009-05-15 Double space material cold-heat simulation experiment device

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CN101598648A true CN101598648A (en) 2009-12-09
CN101598648B CN101598648B (en) 2011-05-04

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN105651638A (en) * 2016-03-21 2016-06-08 重庆微世特机电设备有限公司 Fatigue testing device of material under thermal-mechanical coupling effect
CN105651617A (en) * 2015-12-31 2016-06-08 内蒙古科技大学 Treatment method for preventing fracture melting of tensile sample

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN105651617A (en) * 2015-12-31 2016-06-08 内蒙古科技大学 Treatment method for preventing fracture melting of tensile sample
CN105651617B (en) * 2015-12-31 2018-07-24 内蒙古科技大学 A kind of processing method for preventing tensile sample fracture from melting
CN105651638A (en) * 2016-03-21 2016-06-08 重庆微世特机电设备有限公司 Fatigue testing device of material under thermal-mechanical coupling effect

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