CN202256075U - Constant temperature device for Hopkinson pressure bar test - Google Patents
Constant temperature device for Hopkinson pressure bar test Download PDFInfo
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- CN202256075U CN202256075U CN 201120238993 CN201120238993U CN202256075U CN 202256075 U CN202256075 U CN 202256075U CN 201120238993 CN201120238993 CN 201120238993 CN 201120238993 U CN201120238993 U CN 201120238993U CN 202256075 U CN202256075 U CN 202256075U
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Abstract
The utility model discloses a constant temperature device for Hopkinson pressure bar test. The constant temperature device comprises a movable supporting platform, a tubular heating furnace and an electric control box, wherein the tubular heating furnace is placed on a sliding plate of the movable supporting platform; two groups of sliding rails and a plurality of fixed sliding balls are arranged on an upper surface of the sliding plate; two corundum tubes are symmetrically sleeved at two ends of a heat-resisting steel tube; heat-resisting bricks are respectively laid around an outer surface of a joint part of the two corundum tubes and the heat-resisting steel tube; through holes in which silicon carbide rods are arranged are formed in the heat-resisting bricks; a heat-preserving liner is sleeved on the outer surfaces of a hearth and the heat-resisting bricks; installation holes of the silicon carbide rods are formed in positions, corresponding to those of the through holes in the heat-resisting bricks, in an inner cavity of the heat-preserving liner; an alumina silicate fiber blanket is coated on the outer surface of the heat-preserving liner; a furnace shell is coated on the outer surfaces of the alumina silicate fiber blanket and the heat-preserving liner; a base is fixed on the furnace shell; two heat-preserving covers are respectively filled into the hearth from the two ends of the hearth; and end cover bolts are fixed at the two ends of the furnace shell. According to the constant temperature device for the Hopkinson pressure bar test, the tubular heating furnace can move in the up-down direction, left-right direction and front-back direction of the movable supporting platform. The constant temperature device for the Hopkinson pressure bar test has the characteristics of high heat-preserving performance and convenience for maintenance.
Description
Technical field
The invention belongs to material dynamic test and Dynamic Signal technical field of measurement and test, be specifically related to a kind of thermostat that material temperature is the Hopkinson pressure bar test of normal temperature～1200 ℃ that is used for.
Background technology
Generally speaking, utilize the Hopkinson pressure bar experimental technique that material is carried out the test of dynamic mechanical under the different temperatures, must heat test specimen in advance; Test specimen is between incident bar and transmission bar in the process of the test; Closely contact, the test specimen axis will with the axial alignment of depression bar, and keep steady temperature; So must use thermostat heats test specimen; And use the insulation locating device test specimen is incubated and trial position, present high-temperature Hopkinson pressure bar test method has two kinds, and is also different with the requirement of insulation locating device to thermostat.
A kind of is the test method that test specimen and depression bar are heated simultaneously; This method requires thermostat to heat test specimen and fraction depression bar simultaneously; Thermostat will have insulation and test specimen positioning function; Allow that there is thermograde in depression bar, the thermostat of having used has simple and easy constant temperature thermostat (being made up of thermocouple probe, power supply, relay, simple and easy heating furnace) and simple and easy electric furnace heat riser.The high temperature dynamic test of utilizing this method to carry out when data processing, come measured signal is revised through the influence that propagate the corresponding Reeb of thermograde in the depression bar; Need the Temperature Distribution in the test depression bar; Test specimen temperature range and rate of strain scope are less, because the part depression bar also is heated, its elasticity and yield strength generally rise with temperature and descend; In order to keep the elastic stage of depression bar; The heating-up temperature of depression bar and the stroke speed of bullet all should have bigger restriction, and depression bar is heated in process of the test, the repetitive process of isothermal treatment for short time and cooling can change the micromechanism of depression bar, and then influence the mechanical property of depression bar.Therefore; How protecting depression bar in this test method, how obtaining in the depression bar accurately Temperature Distribution, how corresponding depression bar size is revised and how to be designed to measured signal all is the problems that are worth further investigation; The security and the validity of test are relatively poor, and data processing is difficulty comparatively.
Another kind is the test method that only test specimen is heated, and this method requires thermostat only test specimen to be heated, and can utilize thermostat to be incubated simultaneously and the test specimen location, requires the thermostat conveniently moving, to the accurate positioning of test specimen; Also can heat with thermostat earlier, use separately the insulation locating device to be incubated again and the test specimen location, require insulation locating device conveniently moving, the accurate positioning of test specimen.The thermostat of having used has simple and easy heating furnace of ring-type and microwave oven; The simple and easy heating furnace of ring-type utilizes heating wire to heat; Be incubated with heat insulation tile and asbestos; Maximum heating temperature is 1200 ℃, and microwave oven adopts microwave heating principle, can realize the Fast Heating to the thermal inertia material; Mostly existing attemperator is simple and easy attemperator, and it is box-like to utilize metal or thick paper to make, the two ends perforate, and inner mast asbestos and alumina silicate fibre blanket are incubated, and perhaps utilize asbestos parcels test specimen, support and parcel is incubated with thick paper.The advantage of this method is when foil gauge institute tracer signal is handled on the depression bar, only needs handle according to common Data Processing Method.This method can be divided into two types again.One type is only test specimen to be heated earlier, just test specimen is installed in the system then to make an experiment, and the shortcoming of this type way is that (1) only is applicable to the Hopkinson pressure bar pilot system; (2) owing to should guarantee that the test specimen temperature does not have greatly changed; The heat of test specimen passes to depression bar hardly in the warranty test process again; What this just required that test specimen is heated to behind the predetermined temperature that test accomplishes during this period of time must be very short; This has brought bigger difficulty to Testing System Design, and these class methods can be ignored the heating to depression bar, but how to guarantee that test specimen its temperature distribution evenness after Fast Heating will be the problem that needs solve.The another kind of experimental technique that only test specimen is heated is respectively to increase by a protection piece at the test specimen two ends; The elastic constant of protection block of material is to temperature-insensitive; In heating process; Have only the interface portion of test specimen and test specimen and protection piece to be heated, depression bar then is in room temperature state, and the key factor of using protection piece technology to carry out the test of MATERIALS ' DYNAMIC mechanical behavior under high temperature is choosing of protection piece; Require the protection block of material to temperature-insensitive, the use of protection piece does not bring additional effect to foil gauge test signal on the depression bar.
The above two kinds of methods of comprehensive contrast are to the requirement of thermostat and the relative merits of two kinds of methods; It is generally acknowledged; Utilize thermostat only the method for test specimen heating to be prone to implement, test reliability is higher relatively, and this method also is many a kind of methods that adopts in the research of present material at high temperature dynamic test simultaneously; But existing the thermostat that test specimen is heated is all comparatively simple and easy with the insulation locating device; Inconvenience is regulated in easy thermostat location, test specimen is located inaccurate shortcoming, can bring than mistake to test, and simple and easy insulation locating device can only use temporarily; Can cause test specimen temperature loss and non-uniform temperature, also can bring than mistake to test findings.Use a key that the method for test specimen heating is made an experiment and be test specimen thermostat and appropriate design that is incubated locating device and accurate the use; Arrive the necessary during this period of time enough short of test completion after requiring test specimen to be heated to predetermined temperature; The even property of temperature distributing disproportionation of guaranteeing the test specimen that heat conduction caused between test specimen and the depression bar is enough little to the influence that test findings produces, and can ignore.
Name is called: the patent of " double-air path bidirectional automatic assembling device that is used for high-temperature Hopkinson pressure bar experiment " (application number 200610021096.5 and 200620034468.3) discloses a kind of double-air path bidirectional automatic assembling device that is used for the high-temperature Hopkinson pressure bar test; This device is claimed can the assurance device assembling and the synchronism of stress wave arrival test specimen; And avoid test specimen because of leaving rapidly cooling of thermal source, shortened test specimen and be heated to behind the predetermined temperature, stability that can the assurance device assembling to the test deadline; Improve and be assembled into power; The cold joint that reduces bar and test specimen touches the time, alleviates the non-uniform temperature in the test specimen, and the bulk temperature that reduces test specimen descends.But the disclosed double-air path bidirectional automatic assembling device of this patent has following shortcoming: the one, and device is comparatively complicated, need set up source of the gas and gas circuit and auxiliary device, on normal temperature Hopkinson pressure bar device, carries out the improvement cost height; The 2nd, the key of success of the test is to control the synchronism that air pressure is guaranteed sample assembling and stress wave arrival sample through regulating, and before official test, needs gas big gun air pressure and promotion air pressure are carried out control test, draws the table of comparisons; How the assembling of precise monitoring sample is a problem with the synchronism that stress wave arrives sample, and the process of drawing the table of comparisons is cumbersome, even drawn well; Same pressure is also different in the excitation rate that different time produces, and still can have error, in brief; Accurate synchronism is difficult to guarantee that two kinds of situation are arranged this moment, and a kind of is sample assembling earlier; Arrive behind the stress wave, exist assembling earlier can produce the problem of prestrain, second kind is that sample is unassembled good; Stress wave arrives, test failure.The key of success of the test is the precise synchronization property of assembling, and coarse synchronism can cause the problem of prestrain, even test failure, yet in fact, accurate synchronism is to be difficult to guarantee that the success of the test rate is low.This patent has also been mentioned a kind of simple and easy heating furnace, when being used to carry out hot test test specimen is heated, but and undeclared its composition, structure and principle of work; And in fact, easy heating furnace is not enough to make an experiment, and heating furnace must be according to the testing requirements appropriate design; And be aided with the proper supporting platform and carry out position adjustments; Could carry out elevated temperature impact test accurately and effectively, prior art simply utilizes the simple and easy heating furnace of other object support to make an experiment, and is accurate inadequately; Can cause error to test findings, can not satisfy testing requirements.The appropriate design of heating furnace and support platform and accurate the use for elevated temperature impact test are very important.
The patent that name is called " low temperature Hopkinson pressure bar test controllable constant-temperature test unit " (application number 200920181057.0) discloses a kind of controllable constant-temperature test unit that is used for the test of low temperature Hopkinson pressure bar; The casing that this device comprises the input and output bar and has the heat insulation layer of preserving moisture; Bottom half is equipped with underframe; Can regulate casing to suitable position through the leveling bolt and the deflecting roller of underframe bottom; But this device is applicable to cryogenic conditions, can not be used for carrying out the high-temperature Hopkinson pressure bar test.
Name is called " concrete high temperature Dynamic Compressive Mechanical Properties " (Tao Junlin, blast and impact, 2011; Vol.31, the 1st phase) article discloses a kind of microwave oven and simple and easy insulation locating device that is used for elevated temperature impact test, and simple and easy insulation locating device is made with thick paper and asbestos; Utilize microwave oven that test specimen is heated earlier, then test specimen is put into simple and easy attemperator insulation and test, can cause temperature loss; Cause that the test specimen temperature is uneven, bring than mistake to test findings.
Summary of the invention
Plant modification is complicated when carrying out the high-temperature Hopkinson pressure bar impulse test in order to overcome in the prior art; Cost is higher; The success of the test rate is low; Simple and easy thermostat is regulated inconvenience, the test specimen location is inaccurate, and the big deficiency of simple and easy insulation locating device error the present invention proposes a kind of thermostat that is used for the Hopkinson pressure bar test.
The present invention includes and move support platform and tubular heater.Described mobile support platform is made up of slide plate and support, and described tubular heater comprises end cap, alundum tube, insulation cover, insulation lining, alumina silicate fibre blanket, furnace shell, Elema, pad, heat resisting pipe, heat resisting brick and base.Tubular heater is placed on the slide plate that moves support platform.
Upper surface at slide plate has two groups of slide rails and a plurality of fixing sliding pearl.A plurality of fixing sliding pearls are the upper surface that " Γ " shape is arranged in slide plate.A pair of short slide rail in two groups of slide rails is orthogonal to be fixed on by two minor faces of " Γ " shape unfilled corner that the buphthalmos bearing arranges.A pair of long track is orthogonal to be fixed on by two long limits of " Γ " shape that the buphthalmos bearing arranges.
The two ends that are enclosed within heat resisting pipe of two alundum tube symmetries; Encircle the outside surface at two alundum tubes and heat resisting pipe junction surface and built heat resisting brick respectively; The through hole that Elema is installed is arranged on heat resisting brick; The insulation lining is at the outside surface of burner hearth and heat resisting brick; All there is the mounting hole of Elema the corresponding position of through hole on insulation lining inner chamber and heat resisting brick; Alumina silicate fibre blanket is wrapped in insulation lining outside surface; Furnace shell is wrapped in the outside surface of alumina silicate fibre blanket and insulation lining; Base is fixed on the furnace shell; In two insulation covers are packed burner hearth into from the two ends burner hearth respectively; End cap is fixed on the two ends of furnace shell.
The length of alundum tube is from end cap inside surface to heat resisting brick bore area; The endoporus of alundum tube is a shoulder hole, and wherein stomidium footpath is identical with the external diameter of insulation cover, and other end aperture is identical with the external diameter of heat resisting pipe; Heat resisting pipe is a thin walled cylinder body; The internal diameter of heat resisting pipe is identical with the minimum diameter of alundum tube; The external diameter at heat resisting pipe two ends is identical with the maximum inner diameter of alundum tube; The external diameter at heat resisting pipe middle part is identical with the external diameter of alundum tube.
The external diameter of insulation cover is identical with the minimum diameter of alundum tube; Insulation cover one end has joint flange.
Among the present invention, slide plate is provided with guide rail, fixing sliding pearl and screw rod, make tubular heater can about the platform, about and before and after three directions move, easy to adjust.
The burner hearth of tubular heater is made up of alundum tube and heat resisting pipe, and heat-insulation layer adopts the good alumina silicate fibre blanket of heat-insulating property, and body of heater inside is spherical hearth, and heating element and alundum tube are placed on wherein, wherein adopts heat resisting pipe with the workpiece contact portion; End cap is made up of steel plate and the flame retardant coating of inlaying above that.Abovementioned technology makes the present invention have good heat insulating, characteristics easy to maintenance.
The present invention only adopts the mode of test specimen heating is carried out the high-temperature Hopkinson pressure bar test; The thermostat of being made up of support platform and tubular heater is fixed on the ground between incident bar and the transmission bar; Support platform is used for tubular heater is regulated and located, and tubular heater is used for test specimen is heated, is incubated and locatees.The beneficial effect that the thermostat of invention is used for the test of high temperature Hope gold depression bar is; During test, cost is little, and adjusted is convenient; Can satisfy heating, insulation and the location requirement of test specimen simultaneously; Can guarantee the stability, uniformity of test specimen temperature, guarantee the accuracy of test specimen location, improve success of the test rate and test accuracy.
During test, earlier test specimen is heated, make it reach predetermined temperature and be incubated certain hour, impact the moment before loading; For preventing the test specimen cooling, test specimen is continued heating, and the end cap on both sides is opened; Promote moving incident bar and transmission bar to the precalculated position, excite bullet simultaneously, accomplish test.Because test specimen is positioned at thermostat all the time; And before loading moment, through continuing to heat the compensation temperature loss, cold joint touched the temperature non in the test specimen that causes very little; The temperature homogeneity of test specimen is guaranteed; Because the local temperature rise on the guide rod does not influence the elastic performance of guide rod, and its influence to test findings can be ignored, the reliability of test findings is guaranteed simultaneously.
Among the present invention, form the support platform and the tubular heater collaborative work of thermostat, make that the adjusted of test is very convenient; The test specimen accurate positioning; Temperature control is accurate, and the success of the test rate is high, does not need again test specimen to be put into the insulation locating device and is incubated and trial position; Avoid temperature loss and temperature uneven, reduced test error.The present invention can be widely used in having good heat insulating, the easy to maintenance and low characteristics of cost in the indoor high-temperature Hopkinson pressure bar test of field solid materials such as protection works, Geotechnical Engineering, underground works.
Description of drawings
Below in conjunction with accompanying drawing the present invention is described further.
The original waveform that Fig. 1 records for elevated temperature impact test;
Fig. 2 is a concrete dynamic stress strain curve under the high temperature;
Fig. 3 is the structural representation of thermostat;
Fig. 4 is the side view of Fig. 3;
Fig. 5 is that the structure of tubular heater is formed synoptic diagram;
Fig. 6 is the side view of Fig. 5;
Fig. 7 is the structural representation of insulation cover.
Fig. 8 is the structural representation of alundum tube.
Fig. 9 is the structural representation of heat resisting pipe.
Figure 10 is the structural representation of slide plate.
Figure 11 is the vertical view of Figure 10;
Figure 12 is thermostat and depression bar assembling synoptic diagram.In the accompanying drawing:
1. tubular heater 2. bolts 3. slide plates 4. supports 5. end caps
6. 8. insulations of alundum tube 7. insulation covers serve as a contrast 9. alumina silicate fibre blankets, 10. furnace shells
11. heating element 12. pads 13. heat resisting pipes 14. heat resisting bricks 15. test specimens
16. base 17. buphthalmos bearings 18. guide rails 19. incident depression bars 20. transmission depression bars
Embodiment
Present embodiment is a kind of thermostat that is used for the Hopkinson pressure bar test, comprises mobile support platform, tubular heater and electric control box.Moving support platform is made up of slide plate 3 and support 4; Tubular heater is a monoblock type; Comprise end cap 5, alundum tube 6, insulation cover 7, insulation lining 8, alumina silicate fibre blanket 9, furnace shell 10, heating element 11, pad 12, heat resisting pipe 13, heat resisting brick 14 and base 16; Electric control box is connected with heating furnace with a thermometric lead through two heating wires, and the two ends of heating wires connect the heating element in electric control box and the heating furnace respectively, are used for test specimen is heated; The two ends of thermometric lead connect electric control box and the thermopair of putting into stove respectively, are used for implementing temperature in the monitoring stove.
Shown in accompanying drawing 3, tubular heater is placed on the slide plate 3 that moves support platform, through the guide rail on the slide plate 3 18, ball and screw rod, can about the platform, about and before and after three directions move, conveniently pick and place test specimen.Slide plate 3 is positioned at the upper surface of support 4.Support 4 is a rectangular frame, can be fixed in ground through unequal angle.
Shown in figure 10, slide plate 3 is irregular rectangular steel plates platform.Upper surface at slide plate 3 has slide rail and fixing sliding pearl.The quantity of fixing sliding pearl confirms that according to the size of slide plate 3 and the spacing of fixing sliding pearl in the present embodiment, fixing sliding pearl has 31, is the upper surface that " Γ " shape is arranged in slide plate 3; Spacing between the center of the sliding pearl 17 of adjacent fixed is 10 centimetres.Described fixing sliding pearl is fixed on the buphthalmos bearing on the slide plate with two Cross Recess Head Screws and forms.Described slide rail has two groups, all processes with angle steel.Two groups of slide rails comprise a pair of short slide rail and a pair of long track.A pair of short slide rail is orthogonal to be fixed on by two minor faces of " Γ " shape unfilled corner that the buphthalmos bearing arranges; A pair of long track is orthogonal to be fixed on by two long limits of " Γ " shape that the buphthalmos bearing arranges, and is positioned at the edge of slide plate.Tubular heater places on the fixing sliding pearl 17, and the base of tubular heater moves along the slide rail left-right and front-back through fixing sliding pearl, conveniently picks and places test specimen.
As shown in Figure 5, tubular heater is a monoblock type.End cap 5 is made up of steel plate and the flame retardant coating that is embedded on the steel plate, through being bolted to the two ends of furnace shell 10.Alundum tube 6 has two, is thin walled cylinder body; The structure of two alundum tubes 6 is identical.The length of alundum tube 6 is from end cap 5 inside surfaces to heat resisting brick 14 bore areas.The endoporus of alundum tube 6 is a shoulder hole, and wherein stomidium footpath is identical with the external diameter of insulation cover 7, and other end aperture is identical with the external diameter of heat resisting pipe 13.Heat resisting pipe 13 is a thin walled cylinder body.The internal diameter of heat resisting pipe 13 is identical with the minimum diameter of alundum tube 6; The external diameter at heat resisting pipe 13 two ends is identical with the maximum inner diameter of alundum tube 6.The external diameter at heat resisting pipe 13 middle parts is identical with the external diameter of alundum tube 6.
By two alundum tubes 6 and the circular burner hearth of heat resisting pipe 13 mutual group; Specifically be the two ends that are enclosed within heat resisting pipe 13 with two alundum tubes, 6 symmetries; Make heat resisting pipe 13 be in described burner hearth middle part and workpiece position contacting, prevent to test the fragment damage burner hearth of generation through heat resisting pipe 13.Encircle two alundum tubes 6 and built heat resisting brick 14 respectively with the outside surface at heat resisting pipe 13 junction surfaces.The through hole that heating element 11 is installed is arranged on heat resisting brick 14.
Insulation lining 8 is enclosed within the outside surface of burner hearth and heat resisting brick 14.All there is blind hole the corresponding position of through hole on insulation lining 8 inner chambers and heat resisting brick 14, and heating element 11 is packed on the heat resisting brick 14 behind the through hole, and two ends all are positioned at insulation and serve as a contrast the blind hole on 8.Alumina silicate fibre blanket 9 is wrapped in insulation lining 8 outside surfaces.Furnace shell 10 is wrapped in the outside surface of alumina silicate fibre blanket 9 and insulation lining 8.Base 16 is fixed on the furnace shell 10.In two insulation covers 7 are packed burner hearth into from the two ends burner hearth respectively.
Described insulation cover 7 is circular, is made up of steel plate and the insulation material that sticks on the steel plate.The external diameter of insulation cover 7 is identical with the minimum diameter of the alundum tube 6 that constitutes burner hearth.Insulation cover 7 one ends have joint flange.
Heating element adopts the high temperature resistant silicon carbon-point, and maximum operating temperature can reach 1200 ℃.Heating element is evenly arranged along circumference, adopts special-purpose connection clamp to be connected with switch board with stainless steel foil, is positioned at workpiece wherein through the heat resisting pipe heating.Thermopair is fixed on directly over the body of heater, is connected with temperature control instrument through compensating wire, is used to control the temperature of burner hearth.
Electric control box adopts prior art, comprises casing, control box panel, isolating switch, temperature controller, pilot lamp, volometer, auxiliary reclay, A.C. contactor and solid-state relay module.Electric control box is connected with heating furnace with a thermometric lead through two heating wires; The two ends of heating wires connect the heating element in electric control box and the heating furnace respectively; Be used for test specimen is heated; The two ends of thermometric lead connect electric control box and the thermopair of putting into stove respectively, are used for implementing temperature in the monitoring stove.
During heating, cover insulation cover, realize the sealing heating.During test, open insulation cover, make things convenient for incident bar and transmission bar along burner hearth direction impact test piece.Insulation lining 8 is processed by corundum, and it forms insulating linings with alumina silicate fibre blanket 9, and alumina silicate fibre blanket 9 is at outermost layer, and insulation lining 8 is at internal layer.Furnace shell 10 is welded by shaped steel and steel plate, all adopts the 3mm steel plate, and wherein high temperature resistant part adopts stainless-steel sheet.Heating element 11 is heating elements, evenly places the hole of perforaled tile 14 along circumference, and maximum operating temperature can reach 1200 ℃, and it is connected with switch board with stainless steel foil through special-purpose connection clamp, can be positioned at test specimen wherein through the heat resisting pipe heating.Pad 12 is for the location test specimen is provided with, and is positioned in the workpiece below, and circular arc adopts resistant to elevated temperatures alumina silicate volume felt material processing and fabricating, the highest high temperature that bears 1200 ℃.Heat resisting brick 14 with holes can make its stable and uniform heating test specimen along circumferential registration heating element 11 between insulating lining and burner hearth.
Claims (3)
1. a thermostat that is used for the Hopkinson pressure bar test is characterized in that, comprises moving support platform and tubular heater; Described mobile support platform is made up of slide plate and support, and described tubular heater comprises end cap, alundum tube, insulation cover, insulation lining, alumina silicate fibre blanket, furnace shell, Elema, pad, heat resisting pipe, heat resisting brick and base; Tubular heater is placed on the slide plate that moves support platform;
Upper surface at slide plate has two groups of slide rails and a plurality of fixing sliding pearl; A plurality of fixing sliding pearls are the upper surface that " Γ " shape is arranged in slide plate; A pair of short slide rail in two groups of slide rails is orthogonal to be fixed on by two minor faces of " Γ " shape unfilled corner that the buphthalmos bearing arranges; A pair of long track is orthogonal to be fixed on by two long limits of " Γ " shape that the buphthalmos bearing arranges;
The two ends that are enclosed within heat resisting pipe of two alundum tube symmetries; Encircle the outside surface at two alundum tubes and heat resisting pipe junction surface and built heat resisting brick respectively; The through hole that Elema is installed is arranged on heat resisting brick; The insulation lining is at the outside surface of burner hearth and heat resisting brick; All there is the mounting hole of Elema the corresponding position of through hole on insulation lining inner chamber and heat resisting brick; Alumina silicate fibre blanket is wrapped in insulation lining outside surface; Furnace shell is wrapped in the outside surface of alumina silicate fibre blanket and insulation lining; Base is fixed on the furnace shell; In two insulation covers are packed burner hearth into from the two ends burner hearth respectively; End cap is fixed on the two ends of furnace shell.
2. a kind of according to claim 1 thermostat that is used for the Hopkinson pressure bar test is characterized in that the length of alundum tube is from end cap inside surface to heat resisting brick bore area; The endoporus of alundum tube is a shoulder hole, and wherein stomidium footpath is identical with the external diameter of insulation cover, and other end aperture is identical with the external diameter of heat resisting pipe; Heat resisting pipe is a thin walled cylinder body; The internal diameter of heat resisting pipe is identical with the minimum diameter of alundum tube; The external diameter at heat resisting pipe two ends is identical with the maximum inner diameter of alundum tube; The external diameter at heat resisting pipe middle part is identical with the external diameter of alundum tube.
3. a kind of according to claim 1 thermostat that is used for the Hopkinson pressure bar test is characterized in that the external diameter of insulation cover is identical with the minimum diameter of alundum tube; Insulation cover one end has joint flange.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120238993 CN202256075U (en) | 2011-07-07 | 2011-07-07 | Constant temperature device for Hopkinson pressure bar test |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201120238993 CN202256075U (en) | 2011-07-07 | 2011-07-07 | Constant temperature device for Hopkinson pressure bar test |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102288497A (en) * | 2011-07-07 | 2011-12-21 | 中国人民解放军空军工程大学 | Heating device for Hopkinson pressure bar test |
| CN103868806A (en) * | 2014-04-01 | 2014-06-18 | 湖南大学 | Hopkinson pressure bar experimental apparatus |
| CN103954128A (en) * | 2013-12-12 | 2014-07-30 | 清华大学 | Heating furnace |
| CN109357951A (en) * | 2018-10-26 | 2019-02-19 | 济南大学 | The method and device of material property extension test under a kind of low temperature |
| CN109708956A (en) * | 2019-01-17 | 2019-05-03 | 浙江大学 | A kind of positioning device for dynamic splitting test |
| CN109708955A (en) * | 2019-01-17 | 2019-05-03 | 浙江大学 | A kind of positioning device for Hopkinson pressure bar |
| CN115436153A (en) * | 2022-08-15 | 2022-12-06 | 中国人民解放军空军工程大学 | Heating-constant temperature integrated device for Hopkinson pressure bar and operation method |
| CN116519500A (en) * | 2023-04-19 | 2023-08-01 | 山东科技大学 | Method for acquiring dynamic temperature cloud picture of Hopkinson pressure bar sample |
-
2011
- 2011-07-07 CN CN 201120238993 patent/CN202256075U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102288497A (en) * | 2011-07-07 | 2011-12-21 | 中国人民解放军空军工程大学 | Heating device for Hopkinson pressure bar test |
| CN102288497B (en) * | 2011-07-07 | 2014-06-04 | 中国人民解放军空军工程大学 | Heating device for Hopkinson pressure bar test |
| CN103954128A (en) * | 2013-12-12 | 2014-07-30 | 清华大学 | Heating furnace |
| CN103954128B (en) * | 2013-12-12 | 2015-10-28 | 清华大学 | Heating furnace |
| CN103868806A (en) * | 2014-04-01 | 2014-06-18 | 湖南大学 | Hopkinson pressure bar experimental apparatus |
| CN103868806B (en) * | 2014-04-01 | 2015-11-18 | 湖南大学 | A kind of Hopkinson pressure bar experiment device |
| CN109357951A (en) * | 2018-10-26 | 2019-02-19 | 济南大学 | The method and device of material property extension test under a kind of low temperature |
| CN109708956A (en) * | 2019-01-17 | 2019-05-03 | 浙江大学 | A kind of positioning device for dynamic splitting test |
| CN109708955A (en) * | 2019-01-17 | 2019-05-03 | 浙江大学 | A kind of positioning device for Hopkinson pressure bar |
| CN115436153A (en) * | 2022-08-15 | 2022-12-06 | 中国人民解放军空军工程大学 | Heating-constant temperature integrated device for Hopkinson pressure bar and operation method |
| CN115436153B (en) * | 2022-08-15 | 2023-08-18 | 中国人民解放军空军工程大学 | Heating-constant temperature integrated device for Hopkinson pressure bar and operation method |
| CN116519500A (en) * | 2023-04-19 | 2023-08-01 | 山东科技大学 | Method for acquiring dynamic temperature cloud picture of Hopkinson pressure bar sample |
| CN116519500B (en) * | 2023-04-19 | 2024-03-12 | 山东科技大学 | Method for acquiring dynamic temperature cloud picture of Hopkinson pressure bar sample |
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