CN105699169A - Quick heating device for high-temperature SHPB dynamic impact experiment - Google Patents
Quick heating device for high-temperature SHPB dynamic impact experiment Download PDFInfo
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- CN105699169A CN105699169A CN201610260511.6A CN201610260511A CN105699169A CN 105699169 A CN105699169 A CN 105699169A CN 201610260511 A CN201610260511 A CN 201610260511A CN 105699169 A CN105699169 A CN 105699169A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/44—Sample treatment involving radiation, e.g. heat
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Abstract
The invention discloses a quick heating device for a high-temperature SHPB dynamic impact experiment. The device comprises an upper box, a lower box, a temperature sensor, a heating channel, a guide rail, an electric-thermal conversion device, a hinge, a wire, a temperature measurement hole, a heating tile, heat insulation cotton, a wall, a handle, a ring, a fastener and a heat insulation plate, wherein the temperature sensor is connected with a temperature control device to regulate the temperature inside the heating device in real time, temperature is displayed through the temperature control device, and precise control of heating temperature is achieved; by arranging the heat insulation plate, dissipation of temperature does not occur easily, temperature inside a test piece and temperature outside the test piece can be made consistent, and the situation that the temperature of the test piece is uneven is avoided. The device not only can heat test pieces independently but also can quickly installing and heating test pieces, heating and impacting can be conducted at the same position, test pieces can be positioned accurately, the structure is simple and compact, operation is easy, working efficiency is high, capital input is low, and the device is economical and convenient to popularize.
Description
Technical field
The present invention relates to SHPB experiment auxiliary device field, particularly relate to a kind of nonstorage calorifier for high temperature SHPB impact experiment。
Background technology
SHPB dynamic experiment is widely used in the research of material property, but is mostly stop material experiment at normal temperatures, but worst hot case equally exists, so the research of material under high temperature performance is needed also exist for。Current SHPB high temperature experimental technique is broadly divided into two kinds of types: one is that test specimen and part guided wave bar are put in sweat box and be heated simultaneously, name is called the article (Xia Kaiwen etc. of " research that SHPB device is applied to measure dynamic property of material under high temperature ", Experimental Mechanics, 1998, Vol.13,3rd phase, PP.307-313) thermostatic oven is adopted, utilize one-dimensional stress theory of wave propagation and heat transfer theory, revising the temperature gradient field impact on waveform measurement, its difficult point is in that Data Processing in Experiment is more complicated。Name is called that the patent of invention of " nonstorage calorifier for high-temperature Hopkinson pressure bar experiment " describes a kind of quick mode of heating of test specimen, heating furnace and thermogenic action to incident bar and transmission bar when contacting is entered with high temperature test specimen in order to solve incident bar, incident bar and transmission bar devise the ceramic bar of same external diameter, have ignored the diversity of stress wave propagation in different medium, also have ignored the error that incident bar does not have direct impact test piece to bring, have impact on the accuracy of experimental data。Another kind is first individually test specimen to be heated, quickly test specimen is installed in systems before experiment, name is called the article (Zhang Fangju etc. of " SHPB system high temperature experiment auto-assembling technique ", Experimental Mechanics, 2005, Vol.20, 2nd phase, PP.281-284) and name be called that the patent of invention (patent No.: ZL200610021096.5) of " double-air path bidirectional automatic assembling device for high-temperature Hopkinson pressure bar experiment " describes a kind of Hopkinson and tests double-air path bidirectional automatic assembling device, it has the drawback that the quasistatic being difficult to realize system is docked with Tong Bu, requirement has very high-precision experimental provision。
Summary of the invention
For above-mentioned situation, it is an object of the invention to provide a kind of nonstorage calorifier for high temperature SHPB impact experiment, it can individually heat test specimen, again can Fast Installation, heating test specimen, enable test specimen can also make heating and impact carry out at same position, test specimen accurate positioning, simple in construction, compact, processing ease, work efficiency is high, capital input is few, economical and practical and be easy to penetration and promotion。
The technical solution adopted for the present invention to solve the technical problems is:
A kind of nonstorage calorifier for high temperature SHPB impact experiment, including upper box (1), lower box (2), temperature sensor (3), add the passage of heat (4), guide rail (5), electricity-heat converter (6), hinge (7), electric wire (8), thermometer hole (9), heating watt (10), heat-preservation cotton (11), outer wall (12), handle (13), annulus (14), securing member (15), warming plate (16), described upper box (1) is connected by hinge (7) with lower box, described upper box (1) and lower box (2) are engraved two semicircles and can be combined into a full circle add the passage of heat (4), described upper box (1) is connected to temperature sensor (3), described lower box (2) is connected with guide rail (5), described upper box (1) and lower box (2) are provided above with electricity-heat converter (6), described electricity-heat converter (6) connects electric wire (8) above, described lower box (2) is provided above with securing member (15), heat-preservation cotton (11) it is filled with between described heating watt (10) and outer wall (12), described upper box (1) also sets up handle (13)。
In order to improve the combination property of the present invention, it is achieved structure, effect optimization, its further step is:
The diameter adding the passage of heat (4) is that 100mm is the same with the external diameter of annulus (14), and the internal diameter of annulus (14) is divided into 75mm and 50mm two kinds, and annulus (14) is to be made up of two identical semicircular ring。
Heating watt (10) and annulus (14) are thermostable heat-conductive ceramic material, and critesistor is laid in heating watt (10) below, and is connected with electricity-heat converter (6)。
The diameter of warming plate (16) is the same with the diameter adding the passage of heat (4), and warming plate (16) wraps up one layer of heat preservation cotton above。
The thickness of the heat-preservation cotton (11) filled between outer wall (12) and heating watt (10) is 3～5mm。
Compared with prior art, the invention have the advantage that
(1) present invention utilizes temperature sensor (3) and attemperating unit to connect together, it is possible to regulates the temperature within heater in real time, and by attemperating unit displays temperature, reaches accurately to control the effect of heating-up temperature。
(2) present invention utilizes guide rail (5) to be connected with the SHPB workbench tested, arbitrarily can slide at workbench, so conveniently inside heater, take, put test specimen, avoid and take, put test specimen and easily interfere with SHPB incident bar and transmission bar, convenient operation, make heating test specimen more convenient, rapidly。
(3) present invention setting by warming plate (16), warming plate (16) is tipped in bottoming hole passage (4) when heating or insulation, temperature is made to be not susceptible to dissipate, such test specimen can reach temperature required more uniformly inside heater, by being incubated, the test specimen internal and external temperature can be allowed, it is to avoid the situation of non-uniform temperature occurs in test specimen consistent。
(4) present invention setting adding the passage of heat (4) and two identical semicircular ring by diameter 100mm, it is possible not only to the cylinder test specimen that heating diameter is 100mm, and the test specimen of diameter 75mm and 50mm can be heated, make the multi-size of heating test specimen, test specimen position inside heater also can be fixed simultaneously, makes dynamic impact test to efficiently accomplish。
Accompanying drawing explanation
Fig. 1 is the perspective view of a kind of nonstorage calorifier for high temperature SHPB impact experiment of the present invention；
Fig. 2 is the structural representation after a kind of nonstorage calorifier for high temperature SHPB impact experiment of the present invention is opened；
Fig. 3 is the circular ring structure schematic diagram of a kind of nonstorage calorifier for high temperature SHPB impact experiment of the present invention；
Fig. 4 is the fundamental diagram of a kind of nonstorage calorifier for high temperature SHPB impact experiment of the present invention；
Fig. 5 is the present invention a kind of nonstorage calorifier for high temperature SHPB impact experiment schematic diagram of normal operating conditions in SHPB pilot system；
Signal number in the figure: 1, upper box；2, lower box；3, temperature sensor；4, the passage of heat is added；5, guide rail；6, electricity-heat converter；7, hinge；8, electric wire；9, thermometer hole；10, heating watt；11, heat-preservation cotton；12, outer wall；13, handle；14, annulus；15, securing member；16, warming plate。
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, the present invention is described in further detail:
A kind of nonstorage calorifier for high temperature SHPB impact experiment, including upper box (1), lower box (2), temperature sensor (3), add the passage of heat (4), guide rail (5), electricity-heat converter (6), hinge (7), electric wire (8), thermometer hole (9), heating watt (10), heat-preservation cotton (11), outer wall (12), handle (13), annulus (14), securing member (15), warming plate (16), described upper box (1) is connected by hinge (7) with lower box, described upper box (1) and lower box (2) are engraved two semicircles and can be combined into a full circle add the passage of heat (4), described upper box (1) is connected to temperature sensor (3), described lower box (2) is connected with guide rail (5), described upper box (1) and lower box (2) are provided above with electricity-heat converter (6), described electricity-heat converter (6) connects electric wire (8) above, described lower box (2) is provided above with securing member (15), heat-preservation cotton (11) it is filled with between described heating watt (10) and outer wall (12), described upper box (1) also sets up handle (13)。
In the present embodiment, a kind of nonstorage calorifier for high temperature SHPB impact experiment of design, when deployed test specimen is put on annulus (14), it is placed on together again and adds in the passage of heat (4), upper box (1) is shut by handle (13), clasps fastener (15) again, buckle warming plate (16), then electric wire (8) is connected with attemperating unit, connect with the mains, required temperature is regulated by attemperating unit, then test specimen is heated, when temperature reaches temperature required, temperature sensor (3) meeting feedback temperature information is to attemperating unit, then attemperating unit can enter automatic heat preserving state, after some hours, test after all reaching inside and outside test specimen to control temperature。During test, warming plate (16) is taken off, make the incident bar of SHPB and transmission bar all be directed at test specimen, then carry out dynamic impact test。
In the present embodiment by the setting of warming plate (16), being tipped in by warming plate (16) when heating or insulation adds in the passage of heat (4), temperature is made to be not susceptible to dissipate, such test specimen can reach temperature required more uniformly inside heater, by being incubated, the test specimen internal and external temperature can be allowed, it is to avoid the situation of non-uniform temperature occurs in test specimen consistent。
The setting of the passage of heat (16) and two identical semicircular ring is added in the present embodiment by diameter 100mm, it is possible not only to the cylinder test specimen that heating diameter is 100mm, and the test specimen of diameter 75mm and 50mm can be heated, make the multi-size of heating test specimen, test specimen position inside heater also can be fixed simultaneously, makes dynamic impact test to efficiently accomplish。
It is pointed out that above example is a part of the present invention, the data used in example and chart are merely to illustrate the concrete thought of this method。For a person skilled in the art, all within the spirit and principles in the present invention, the change that can readily occur in or equal replacement, improvement etc., should be included within protection scope of the present invention。Therefore, protection scope of the present invention should be as the criterion with described scope of the claims。
Claims (5)
1. for a nonstorage calorifier for high temperature SHPB impact experiment, including upper box (1), lower box (2), temperature sensor (3), add the passage of heat (4), guide rail (5), electricity-heat converter (6), hinge (7), electric wire (8), thermometer hole (9), heating watt (10), heat-preservation cotton (11), outer wall (12), handle (13), annulus (14), securing member (15), warming plate (16), described upper box (1) is connected by hinge (7) with lower box, described upper box (1) and lower box (2) are engraved two semicircles and can be combined into a full circle add the passage of heat (4), described upper box (1) is connected to temperature sensor (3), described lower box (2) is connected with guide rail (5), described upper box (1) and lower box (2) are provided above with electricity-heat converter (6), described electricity-heat converter (6) connects electric wire (8) above, described lower box (2) is provided above with securing member (15), heat-preservation cotton (11) it is filled with between described heating watt (10) and outer wall (12), described upper box (1) also sets up handle (13)。
2. a kind of nonstorage calorifier for high temperature SHPB impact experiment according to claim 1, it is characterized in that: described in add the diameter of the passage of heat (4) be that 100mm is the same with the external diameter of annulus (14), the internal diameter of annulus (14) is divided into 75mm and 50mm two kinds, and annulus (14) is to be made up of two identical semicircular ring。
3. a kind of nonstorage calorifier for high temperature SHPB impact experiment according to claim 1, it is characterized in that: described heating watt (10) and annulus (14) are thermostable heat-conductive ceramic material, critesistor is laid in heating watt (10) below, and is connected with electricity-heat converter (6)。
4. a kind of nonstorage calorifier for high temperature SHPB impact experiment according to claim 1, it is characterized in that: the diameter of described warming plate (16) is the same with the diameter adding the passage of heat (4), and warming plate (16) wraps up one layer of heat preservation cotton above。
5. a kind of nonstorage calorifier for high temperature SHPB impact experiment according to claim 1, is characterized in that: the thickness of the heat-preservation cotton (11) filled between described outer wall (12) and heating watt (10) is 3～5mm。
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610260511.6A CN105699169A (en) | 2016-04-21 | 2016-04-21 | Quick heating device for high-temperature SHPB dynamic impact experiment |
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| CN201610260511.6A CN105699169A (en) | 2016-04-21 | 2016-04-21 | Quick heating device for high-temperature SHPB dynamic impact experiment |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106198199A (en) * | 2016-07-04 | 2016-12-07 | 西北工业大学 | Heating furnace based on Hopkinson bar and specimen holder |
| CN106404538A (en) * | 2016-11-16 | 2017-02-15 | 北方工业大学 | Hot double drawing experiment heating apparatus and hot double drawing experiment heating method |
| CN106442166A (en) * | 2016-09-14 | 2017-02-22 | 太原理工大学 | Device and method for high-temperature impact torsion test of hopkinson bar |
| CN106596620A (en) * | 2016-12-14 | 2017-04-26 | 电子科技大学 | Small heating device for high-temperature experiments of metal micro-miniature test samples |
| CN107290232A (en) * | 2017-06-09 | 2017-10-24 | 北京工业大学 | The high temperature test specimen tested for Hopkinson bar cools rapidly chain-type device |
| CN109443958A (en) * | 2019-01-14 | 2019-03-08 | 华东交通大学 | A kind of drop hammer type low velocity impact testing stand |
| CN112082881A (en) * | 2019-06-14 | 2020-12-15 | 中国航发商用航空发动机有限责任公司 | Heating device of Hopkinson bar |
| CN112857965A (en) * | 2021-01-08 | 2021-05-28 | 北京理工大学 | High-temperature heating system for SHPB test |
| CN113029758A (en) * | 2021-03-30 | 2021-06-25 | 哈尔滨工程大学 | Gas heating device capable of realizing accurate temperature control for Hopkinson bar high-temperature experiment |
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| 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 |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106198199A (en) * | 2016-07-04 | 2016-12-07 | 西北工业大学 | Heating furnace based on Hopkinson bar and specimen holder |
| CN106442166A (en) * | 2016-09-14 | 2017-02-22 | 太原理工大学 | Device and method for high-temperature impact torsion test of hopkinson bar |
| CN106404538A (en) * | 2016-11-16 | 2017-02-15 | 北方工业大学 | Hot double drawing experiment heating apparatus and hot double drawing experiment heating method |
| CN106404538B (en) * | 2016-11-16 | 2023-09-12 | 北方工业大学 | Heating device and heating method for thermal double-pull experiment |
| CN106596620A (en) * | 2016-12-14 | 2017-04-26 | 电子科技大学 | Small heating device for high-temperature experiments of metal micro-miniature test samples |
| CN107290232A (en) * | 2017-06-09 | 2017-10-24 | 北京工业大学 | The high temperature test specimen tested for Hopkinson bar cools rapidly chain-type device |
| CN107290232B (en) * | 2017-06-09 | 2020-01-03 | 北京工业大学 | Chain type device for rapidly cooling high-temperature test piece in Hopkinson bar experiment |
| CN109443958A (en) * | 2019-01-14 | 2019-03-08 | 华东交通大学 | A kind of drop hammer type low velocity impact testing stand |
| CN112082881A (en) * | 2019-06-14 | 2020-12-15 | 中国航发商用航空发动机有限责任公司 | Heating device of Hopkinson bar |
| CN112857965A (en) * | 2021-01-08 | 2021-05-28 | 北京理工大学 | High-temperature heating system for SHPB test |
| CN113029758A (en) * | 2021-03-30 | 2021-06-25 | 哈尔滨工程大学 | Gas heating device capable of realizing accurate temperature control for Hopkinson bar high-temperature experiment |
| CN113029758B (en) * | 2021-03-30 | 2022-11-18 | 哈尔滨工程大学 | Gas heating device capable of realizing accurate temperature control for Hopkinson bar high-temperature experiment |
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Inventor after: Xu Ying Inventor after: Shao Binbin Inventor after: Wu Mingjing Inventor after: Zheng Zhitao Inventor after: Wang Mengxiang Inventor before: Shao Binbin Inventor before: Wu Mingjing Inventor before: Xu Ying Inventor before: Zheng Zhitao Inventor before: Wang Mengxiang |
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