CN106076451A - Nanometer press fit instrument liquid nitrogen refrigerating platform - Google Patents
Nanometer press fit instrument liquid nitrogen refrigerating platform Download PDFInfo
- Publication number
- CN106076451A CN106076451A CN201610642104.1A CN201610642104A CN106076451A CN 106076451 A CN106076451 A CN 106076451A CN 201610642104 A CN201610642104 A CN 201610642104A CN 106076451 A CN106076451 A CN 106076451A
- Authority
- CN
- China
- Prior art keywords
- heat
- insulated cavity
- lifting platform
- base
- liquid nitrogen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L9/00—Supporting devices; Holding devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L7/00—Heating or cooling apparatus; Heat insulating devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D3/00—Devices using other cold materials; Devices using cold-storage bodies
- F25D3/10—Devices using other cold materials; Devices using cold-storage bodies using liquefied gases, e.g. liquid air
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/40—Investigating hardness or rebound hardness
- G01N3/42—Investigating hardness or rebound hardness by performing impressions under a steady load by indentors, e.g. sphere, pyramid
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
- G01N2203/0222—Temperature
- G01N2203/0228—Low temperature; Cooling means
Abstract
Nanometer press fit instrument liquid nitrogen refrigerating platform, including base, lifting platform embeds in base, the front opening of base；Heat-insulated cavity is the cavity of the upper end open of hollow, heat-insulated cavity hollow inner-layer filling with insulation material, and through hole offered by lifting platform, and heat-insulated cavity snaps in the through hole of lifting platform；The atomizer being connected with liquid nitrogen stream siphunculus is arranged on inside heat-insulated cavity, and pressure valve is arranged on bottom heat-insulated cavity, and pressure valve is connected with the external world by air vent；Temperature sensor embeds in object stage, and object stage is fixedly connected to form a seal with the upper end open of heat-insulated cavity；Base is offered the wire casing for placing temperature sensor lead.The present invention solves the problem that reduced size sample enters the test of nanometer press fit instrument under stable low temperature environment.
Description
Technical field
The present invention relates to a kind of assay device, particularly to nanometer press fit instrument liquid nitrogen refrigerating platform.
Background technology
It is a kind of new technique risen in recent years that nanometer press-in is measured, and is widely used in many scientific domains.It is by continuously
Load and the degree of depth of record press-in measure the relevant parameters such as consistency and elasticity modulus.This technology can be from load and depth survey
In indirectly converse contact area, it is to avoid find Indentation position and measure participate in the area of indentation loaded down with trivial details work, be substantially reduced survey
Amount error.Compared with traditional Material Testing Machine, this technology need not destroy material, and the precision simultaneously measured also improves, and surveys
The scope of amount is the most extensive.Along with preparation and the development of process technology of nano material, the feature chi of increasing material
Little progress enters micro-nano-scale, and in life, a lot of mechanical parts or even raw material are required for working under extremely low temperature simultaneously, then
Assessment temperature is to parts, and the influence degree of material just seems particularly necessary, and to ensure parts, material is sent out in actual use
Wave due function and reliable stability.But a kind of nanometer press fit instrument refrigeration platform, it is possible in pole
End low temperature gets off the performance of research material.
Summary of the invention
For solving the deficiencies in the prior art, it is provided that a kind of nanometer press fit instrument liquid nitrogen refrigerating platform, this refrigeration platform is tied
Structure is reasonable, can effectively carry out material carries out under cryogenic conditions nanometer press-in performance test.
For achieving the above object, the present invention is by the following technical solutions:
Nanometer press fit instrument liquid nitrogen refrigerating platform, including base, lifting platform embeds in base, the front opening of base；Incubation cavity
Body is the cavity of the upper end open of hollow, heat-insulated cavity hollow inner-layer filling with insulation material, and lifting platform offers through hole, heat-insulated cavity
Snap in the through hole of lifting platform；The atomizer being connected with liquid nitrogen stream siphunculus is arranged on inside heat-insulated cavity, and pressure valve is installed
Bottom heat-insulated cavity, pressure valve is connected with the external world by air vent；Temperature sensor embeds in object stage, object stage and guarantor
The upper end open of temperature cavity is fixedly connected to form a seal；Base is offered the line for placing temperature sensor lead
Groove.
Above-mentioned nanometer press fit instrument liquid nitrogen refrigerating platform, the front end face of lifting platform is coordinated by corner structure with base.
Above-mentioned nanometer press fit instrument liquid nitrogen refrigerating platform, offers waist-shaped hole at base side wall, is provided with spiral shell at lifting platform sidewall
Pit, regulation bolt is threadeded through mounting hole with the screwed hole of lifting platform.
In order to study the low temperature impact on material mechanical performance, help nanometer by being placed in sample under the low temperature environment of pole to relend
Press fit instrument studies the mechanical property of sample, and the problem that may be only available for reduced size sample.The present invention proposes one
The simple efficient apparatus of energy stability contorting low temperature.Utilize low boiling (-196 ° of C) characteristic of liquid nitrogen, control the heat exchange of liquid nitrogen, will
Low temperature is delivered on object stage, detects object stage temperature in real time, when heat exchange tends towards stability so that experimental sample is in surely
In fixed low temperature environment, object stage also has the function of regulation height simultaneously.
Accompanying drawing explanation
The present invention is further described with embodiment below in conjunction with the accompanying drawings.
Fig. 1 is the overall structure exploded perspective view of apparatus of the present invention.
Fig. 2 is apparatus of the present invention overall structure schematic diagrams.
Fig. 3 is the structural representation of heat-insulated cavity of the present invention.
Being labeled as in figure: 1 base, the vertical boss in pan frontward end face, 12 wire casings, 2 lifting platforms in 11 corner structures, 21 turn
The breach coordinated with boss offered on lifting platform in corner structure, 3 waist-shaped holes, 31 regulation bolts, 4 heat-insulated cavities, 41 atomization sprays
Mouth, 42 pressure valve, 5 object stages, 6 temperature sensors.
Detailed description of the invention
Referring to the drawings, nanometer press fit instrument liquid nitrogen refrigerating platform, including base 1, lifting platform 2 embeds in base, base
Front opening；Heat-insulated cavity 4 is the cavity of the upper end open of hollow, heat-insulated cavity hollow inner-layer filling with insulation material, lifting platform
Offering through hole, heat-insulated cavity snaps in the through hole of lifting platform；The atomizer 41 being connected with liquid nitrogen stream siphunculus is arranged on insulation
Inside cavity, pressure valve 42 is arranged on bottom heat-insulated cavity, and pressure valve is connected with the external world by air vent；Temperature sensor 6
Embedding in object stage 5, object stage is fixedly connected to form a seal with the upper end open of heat-insulated cavity；Base is offered for
Place the wire casing 12 of temperature sensor lead.Offer waist-shaped hole 3 at base side wall, be provided with screwed hole at lifting platform sidewall, regulation
Bolt is threadeded through mounting hole with the screwed hole of lifting platform
The one end open structure of base, for the installation of liquid nitrogen stream siphunculus parts.
The front end face of lifting platform is coordinated by corner structure with base.The design of corner structure so that lifting platform and base
Between coordinated with the conflict of rear end face by turning, make both will not occur front and back to topple, it is ensured that lifting platform is vertical with base
Altitude mixture control.Corner structure i.e. arranges a vertical boss 11 at the front end face of base, offers and coordinate with boss on lifting platform
Breach 12, make the front end face that breach is vertical coordinate with the perpendicular end surface of boss, in conjunction with the hanging down of rear end face of lifting platform and base
The cooperation of straight plane, topples before and after preventing lifting platform.
The setting of waist-shaped hole, can be conveniently adjusted lifting platform height on base, such that it is able to the height of regulation object stage
Degree.
Air vent is arranged at below heat-insulated cavity, and heat-insulated cavity embeds in the through hole of lifting platform, and between lifting platform and base
There is certain space, so nitrogen can be smoothly discharged heat-insulated cavity and enter the external world, i.e. enter in test box body, due to nitrogen
It is noble gas, sample is had certain protective effect.
The operation principle of the present invention: rotate regulation bolt, regulates the relative altitude between lifting platform and base, the most external
Nitrogen storage tank, and control to enter pressure and the flow of liquid nitrogen stream siphunculus by pressure valve and flow valve, thus through installing
Atomizer in heat-insulated cavity, makes liquid nitrogen be evenly distributed in the inside of heat-insulated cavity, carries out heat exchange by object stage,
Making laboratory sample temperature decline, detected temperature by temperature sensor in real time, the feeding of regulation liquid nitrogen, such that it is able to control temperature
Degree.Along with the carrying out of experiment, heat-insulated cavity interior section liquid nitrogen vaporization becomes nitrogen, and heat-insulated cavity internal pressure can be made to increase,
When pressure reaches setting value, the gas being automatically drained out in heat-insulated cavity by pressure valve, is reduced pressure, it is ensured that the peace of experiment
Entirely.
Claims (3)
1. nanometer press fit instrument liquid nitrogen refrigerating platform, including base, it is characterised in that lifting platform embeds in base, the front end of base
Opening；Heat-insulated cavity is the cavity of the upper end open of hollow, and heat-insulated cavity hollow inner-layer filling with insulation material, lifting platform is offered logical
Hole, heat-insulated cavity snaps in the through hole of lifting platform；The atomizer being connected with liquid nitrogen stream siphunculus is arranged on inside heat-insulated cavity,
Pressure valve is arranged on bottom heat-insulated cavity, and pressure valve is connected with the external world by air vent；Temperature sensor embeds in object stage,
Object stage is fixedly connected to form a seal with the upper end open of heat-insulated cavity；Base is offered for placing temperature sensor
The wire casing of wire.
2. nanometer press fit instrument liquid nitrogen refrigerating platform as claimed in claim 1, it is characterised in that the front end face of lifting platform and the end
Seat is coordinated by corner structure.
3. nanometer press fit instrument liquid nitrogen refrigerating platform as claimed in claim 1, it is characterised in that offer waist type at base side wall
Hole, is provided with screwed hole at lifting platform sidewall, and regulation bolt is threadeded through mounting hole with the screwed hole of lifting platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610642104.1A CN106076451B (en) | 2016-08-08 | 2016-08-08 | Nanometer press fit instrument liquid nitrogen refrigerating platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610642104.1A CN106076451B (en) | 2016-08-08 | 2016-08-08 | Nanometer press fit instrument liquid nitrogen refrigerating platform |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106076451A true CN106076451A (en) | 2016-11-09 |
| CN106076451B CN106076451B (en) | 2018-03-16 |
Family
ID=57453588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610642104.1A Active CN106076451B (en) | 2016-08-08 | 2016-08-08 | Nanometer press fit instrument liquid nitrogen refrigerating platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106076451B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107063844A (en) * | 2017-03-30 | 2017-08-18 | 广西玉柴机器股份有限公司 | The auxiliary mould of hardness determination |
| CN108535129A (en) * | 2018-04-16 | 2018-09-14 | 吉林大学 | The micro-nano impression test system of low temperature that large journey low-temperature floats under micro- component |
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| US20070039969A1 (en) * | 2005-08-22 | 2007-02-22 | Elizabeth Pittis-Moffitt | Straight-sided thermos |
| CN103868789A (en) * | 2012-12-18 | 2014-06-18 | 青岛瑞丰气体有限公司 | Ultralow-temperature impact test device |
| CN104511336A (en) * | 2013-09-30 | 2015-04-15 | 大连民族学院 | Ultraclean work bench |
| CN103543065B (en) * | 2013-10-14 | 2016-01-20 | 北京工业大学 | A kind of ice body nano impress sample bench and related experimental methods |
| CN105290468A (en) * | 2014-07-31 | 2016-02-03 | 上海交通大学 | Device and method for preparing structure-controllable prefabricated part |
| CN205850909U (en) * | 2016-08-08 | 2017-01-04 | 浙江工业大学 | Nanometer press fit instrument liquid nitrogen refrigerating platform |
-
2016
- 2016-08-08 CN CN201610642104.1A patent/CN106076451B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070039969A1 (en) * | 2005-08-22 | 2007-02-22 | Elizabeth Pittis-Moffitt | Straight-sided thermos |
| CN103868789A (en) * | 2012-12-18 | 2014-06-18 | 青岛瑞丰气体有限公司 | Ultralow-temperature impact test device |
| CN104511336A (en) * | 2013-09-30 | 2015-04-15 | 大连民族学院 | Ultraclean work bench |
| CN103543065B (en) * | 2013-10-14 | 2016-01-20 | 北京工业大学 | A kind of ice body nano impress sample bench and related experimental methods |
| CN105290468A (en) * | 2014-07-31 | 2016-02-03 | 上海交通大学 | Device and method for preparing structure-controllable prefabricated part |
| CN205850909U (en) * | 2016-08-08 | 2017-01-04 | 浙江工业大学 | Nanometer press fit instrument liquid nitrogen refrigerating platform |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107063844A (en) * | 2017-03-30 | 2017-08-18 | 广西玉柴机器股份有限公司 | The auxiliary mould of hardness determination |
| CN108535129A (en) * | 2018-04-16 | 2018-09-14 | 吉林大学 | The micro-nano impression test system of low temperature that large journey low-temperature floats under micro- component |
| CN108535129B (en) * | 2018-04-16 | 2022-04-01 | 吉林大学 | Low-temperature micro-nano indentation testing system with large stroke and low temperature drift under microscopic assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106076451B (en) | 2018-03-16 |
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