JPS6168535A - Vacuum environment tester - Google Patents

Vacuum environment tester

Info

Publication number
JPS6168535A
JPS6168535A JP18952184A JP18952184A JPS6168535A JP S6168535 A JPS6168535 A JP S6168535A JP 18952184 A JP18952184 A JP 18952184A JP 18952184 A JP18952184 A JP 18952184A JP S6168535 A JPS6168535 A JP S6168535A
Authority
JP
Japan
Prior art keywords
vacuum
container
sample
flange
vacuum environment
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
Application number
JP18952184A
Other languages
Japanese (ja)
Other versions
JPH0215812B2 (en
Inventor
Eiichi Hazaki
栄市 羽崎
Masaya Imai
正也 今井
Toshio Hatada
畑田 敏夫
Mitsuaki Haneda
光明 羽田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP18952184A priority Critical patent/JPS6168535A/en
Publication of JPS6168535A publication Critical patent/JPS6168535A/en
Publication of JPH0215812B2 publication Critical patent/JPH0215812B2/ja
Granted legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/08Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
    • G01N3/18Performing tests at high or low temperatures

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

PURPOSE:To elevate the general applicability of a tester, by providing a vacuum flange on a vacuum container to enable the detaching of at least one or more of load imparting elements or measuring elements in order to make possible various vacuum environment tests with one vacuum device. CONSTITUTION:A vacuum container 1 made up of an upper container 1a and a lower container 1b is mounted on the top of a frame 3 with casters 2. A rotation introducer 5 is mounted on a vacuum flange 4 on a bottom late, a rotating shaft 7 thereof has a sample receiver at the upper end thereof and a friction sample 10 is placed thereon in such a manner as to be unable to rotate. A subject sample 11 is connected to an external load lever 17 through a holder 12, a friction force measuring device 13, a load measuring device 14, an internal load lever 15 and a berrows 16. A cryopanel 19 is inserted into the vacuum container and a light source 30 for heating friction sample is provided. As a vacuum flange 18 is provided to insert at least one or more of test devices, samples and the like on the lower container of the vacuum container 1, other testings can be done.

Description

【発明の詳細な説明】 〔発明の利用分野〕 本発明は真空環境試験装置に係り、特に真空環境下での
種々の試験を行なうのに好適な真空環境試験装置に関す
る。
DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a vacuum environment test device, and particularly to a vacuum environment test device suitable for conducting various tests in a vacuum environment.

〔発明の背景〕[Background of the invention]

近年、宇宙開発に伴ない、宇宙環境すなわち高真空雰囲
気中での試験装置の要求が高まってきている。現在、こ
の種の試験装置としては、例えば東京大学宇宙航空研究
所報告第17巻第1号における木材等によるパ超高真空
摩擦試験機による二。
In recent years, with space development, there has been an increasing demand for test equipment in the space environment, that is, in a high vacuum atmosphere. At present, this type of testing equipment includes, for example, the Ultra High Vacuum Friction Tester using wood, etc., as described in Report of the Institute of Space and Astronautics, University of Tokyo, Vol. 17, No. 1.

三の実験結果について”と題する文献において論じられ
ている。この種の試験装置は一つの実験目的のためにし
か使用できない。一方、近年では前述した要求にもとづ
いて種々の試験が可能な装置が求められているが、汎用
性を備えることについては配慮されていないのが現状で
ある。
This type of testing equipment can only be used for one experimental purpose.On the other hand, in recent years, equipment that can perform various tests based on the above-mentioned requirements has been developed. Although it is desired, the current situation is that no consideration is given to providing versatility.

〔発明の目的〕[Purpose of the invention]

本発明の目的は、一つの真空環境試験装置で軸受、歯車
、熱試験等の種々の実験ができる装置を提供することに
ある。
An object of the present invention is to provide an apparatus that allows various experiments on bearings, gears, thermal tests, etc. to be carried out using one vacuum environment test apparatus.

〔発明の概要〕[Summary of the invention]

本発明は上記の目的を達成するために、真空環境下で試
験を行う装置において、真空環境空間を形成する真空容
器に、試料装着部と、試料に対する負荷系要素、加熱要
素あるいは測定要素の少なくとも1つ以上の要素を脱着
するための脱着部とを設け、実験目的に応じて、種々の
要素を取付けて、一つの装置により種々の真空環境下で
の実験を行えるようにしたものである。
In order to achieve the above object, the present invention provides an apparatus for conducting tests in a vacuum environment, in which a vacuum container forming a vacuum environment space is provided with at least a sample mounting section, a loading system element for the sample, a heating element, or a measuring element. The device is equipped with a detachable section for attaching and detaching one or more elements, and various elements can be attached depending on the purpose of the experiment, so that experiments can be performed under various vacuum environments with one device.

〔発明の実施例〕[Embodiments of the invention]

以下、本発明の実施例を図面により説明する。 Embodiments of the present invention will be described below with reference to the drawings.

第1図は本発明の装置の一実施例を示すもので、この図
において、真空容器1は車輪2のついた架台3の上部に
取りつけられている。これにより真空容器1を所望の位
置に移動させることができる。
FIG. 1 shows an embodiment of the apparatus of the present invention, in which a vacuum container 1 is mounted on a pedestal 3 with wheels 2. This allows the vacuum container 1 to be moved to a desired position.

真空容器1は上容器1aと、下容器1bとで構成され、
そのフランジlc、ldによって一体化され、シール材
1eによってシールされている。この真空容器1の内部
空間が真空環境試験空間となる。真空容器1の底板1f
には真空フランジ4が溶接されている。この真空フラン
ジ4には回転溝人権5が取りつけられている。この回転
導入機5の回転軸7は真空容器]内に導入されている。
The vacuum container 1 is composed of an upper container 1a and a lower container 1b,
They are integrated by flanges lc and ld, and sealed by sealing material 1e. The internal space of this vacuum container 1 becomes a vacuum environment test space. Bottom plate 1f of vacuum container 1
A vacuum flange 4 is welded to. A rotary groove human body 5 is attached to this vacuum flange 4. The rotating shaft 7 of this rotation introduction device 5 is introduced into a vacuum container.

回転導入機5は架台3上の電動機6に連結している。The rotation introducing machine 5 is connected to an electric motor 6 on the pedestal 3.

電動機6の回転動力は回転軸7に伝えられる。回転軸7
の上端には試料受け8がネジ結合されている。その試料
受け8上にはビン9により摩擦試料10が試料受け8に
対して回転不可能に載置されている。摩擦試料10に対
向する相手試料11はホルダ12、摩擦力測定器13、
荷重測定器14、内部負荷レバー15、ベローズ]6を
介して外部負荷レバー17に連結している。このため、
このレバー17に荷重Wを加えることにより、摩擦試料
10と相手試料]1との間の摩擦および摩耗の測定実験
をすることができる。ベローズ16は真空フランジ4の
中心線と交り、かつ直交する中心線を持ち、真空容器1
bの胴部に溶接された真空フランジ18に取りつけられ
ている。
The rotational power of the electric motor 6 is transmitted to the rotating shaft 7. Rotating shaft 7
A sample holder 8 is screwed to the upper end of the holder. A friction sample 10 is placed on the sample receiver 8 by a bottle 9 so as to be non-rotatable with respect to the sample receiver 8 . A counterpart sample 11 facing the friction sample 10 includes a holder 12, a friction force measuring device 13,
It is connected to an external load lever 17 via a load measuring device 14, an internal load lever 15, and a bellows]6. For this reason,
By applying a load W to this lever 17, it is possible to perform an experiment to measure the friction and wear between the friction sample 10 and the mating sample]1. The bellows 16 has a center line that intersects and is perpendicular to the center line of the vacuum flange 4, and
It is attached to a vacuum flange 18 welded to the body of b.

真空容器1の内部にはフィンチューブ形の上クライオパ
ネル19が挿入されている。この−上クライオパネル1
9には、チューブ20、真空フランジ21a、21b、
チューブ22を通して液体窒素が供給され、チューブ2
3、真空フランジ24a。
A fin tube-shaped upper cryopanel 19 is inserted into the vacuum chamber 1 . This - upper cryopanel 1
9 includes a tube 20, vacuum flanges 21a, 21b,
Liquid nitrogen is supplied through tube 22, and
3. Vacuum flange 24a.

24b、チューブ25を通して排出される。チューブ2
0.25は真空フランジ26に溶接されており、真空フ
ランジ21a、21b、24a。
24b and is discharged through tube 25. tube 2
0.25 are welded to the vacuum flange 26, and the vacuum flanges 21a, 21b, 24a.

24bを取りはずすことにより上容器1aから取りはず
すことができる。下クライオパネル27は上クライオパ
ネル19と同じ方法で液体窒素を供給、排出し、また下
容器1bから取り外すことができる。上、下クライオパ
ネル19.27によって真空容器1内あるいは摩擦試料
10を冷却することができる。加熱に関しては真空容器
1の天板1gに真空フランジ28、のぞき窓29、を通
して光源30の光を真空容器1内に導入し、摩擦試料1
0を加熱する。真空容器1にはターボ分子ポンプ31と
ロータリポンプ32が接続しており、これらの排気によ
り真空容器1内は真空試験環境雰囲気に設定されている
By removing 24b, it can be removed from the upper container 1a. The lower cryopanel 27 can supply and discharge liquid nitrogen in the same manner as the upper cryopanel 19, and can also be removed from the lower container 1b. The inside of the vacuum container 1 or the friction sample 10 can be cooled by the upper and lower cryopanels 19 and 27. Regarding heating, light from a light source 30 is introduced into the vacuum container 1 through the vacuum flange 28 and the observation window 29 on the top plate 1g of the vacuum container 1, and the friction sample 1 is heated.
Heat 0. A turbo molecular pump 31 and a rotary pump 32 are connected to the vacuum container 1, and the interior of the vacuum container 1 is set to a vacuum test environment atmosphere by exhausting these pumps.

この実施例によれば、真空容器1の下容器に少なくとも
1つ以上の試験器具、試料等の挿入用の真空フランジ1
8を設けたので、この真空フランジ18により他の試験
も可能である。
According to this embodiment, a vacuum flange 1 for inserting at least one test instrument, sample, etc. is provided in the lower container of the vacuum container 1.
8, other tests are also possible with this vacuum flange 18.

この他の試験の例を第2図によって説明する。An example of this other test will be explained with reference to FIG.

この図において第1図と同符号のものは同一部分である
。この実施例は軸受33で支持された回転導入機6の回
転軸7の先端に被試験体となる歯車34を取りつける。
In this figure, the same reference numerals as in FIG. 1 are the same parts. In this embodiment, a gear 34 to be tested is attached to the tip of a rotating shaft 7 of a rotation introduction device 6 supported by a bearing 33.

軸受33はハウジング35を介して底板1fに取りつけ
られる。一方、真空容器1の下容器1bの胴部に接続さ
れた真空フランジ18から第1図に示す実施例で取りつ
けたベローズ16、内部負荷レバー15等をはずしたの
ち、真空フランジ18に回転導入機36を取りつける。
The bearing 33 is attached to the bottom plate 1f via the housing 35. On the other hand, after removing the bellows 16, internal load lever 15, etc. attached in the embodiment shown in FIG. 1 from the vacuum flange 18 connected to the body of the lower container 1b of the vacuum container 1, Attach 36.

また回転導入機36の回転軸37を軸受38で支持する
。軸受38はハウジング39を介して底板1fに固定さ
れている。回転軸37の先端には被試験体の歯車34と
かみあう被試験体の歯車40が取りつけられている。回
転導入機36の一端はカップリング41を介してブレー
キ42に結合される。
Further, a rotating shaft 37 of the rotation introduction device 36 is supported by a bearing 38. The bearing 38 is fixed to the bottom plate 1f via a housing 39. A gear 40 of the test object that meshes with the gear 34 of the test object is attached to the tip of the rotating shaft 37. One end of the rotation introducer 36 is coupled to a brake 42 via a coupling 41.

このように構成することにより電動機6によつて互にか
み合う歯車34..40が回転され、ブレーキ42によ
って負荷が与えられた状態において真空中での歯車の性
能試験ができる。そしてこの試験は第1図に示す実施例
の摩擦、摩耗試験における真空フランジ18に取りつけ
た部品を交換することに簡単にできる。
With this configuration, the gears 34 are meshed with each other by the electric motor 6. .. 40 is rotated and a load is applied by the brake 42, and the performance of the gear can be tested in a vacuum. This test can be easily carried out by replacing the parts attached to the vacuum flange 18 in the friction and wear test of the embodiment shown in FIG.

第3図は本発明の装置のさらに他の実施例を示すもので
、この図において第1図および第2図と同符号のものは
同一部分である。この実施例はピン・ブツシュ形の摩擦
、摩耗試験の例である。回転導入機5の回転軸7に試験
軸43がネジ結合されている。回転軸7は軸受33で支
持されている。
FIG. 3 shows still another embodiment of the apparatus of the present invention, in which the same reference numerals as in FIGS. 1 and 2 are the same parts. This example is an example of a pin-button type friction and wear test. A test shaft 43 is screwed to the rotation shaft 7 of the rotation introduction device 5 . The rotating shaft 7 is supported by a bearing 33.

軸受33はハウジング35を介して底板1fに取りつけ
られる。試験ブツシュ44は試験軸43にはめ込まれ、
ピアノ線45、内部負荷レバー15、真空フランジ18
に取りつけられたベローズ16、外部負荷レバー17を
介して荷重Wが加えられる。
The bearing 33 is attached to the bottom plate 1f via the housing 35. The test bushing 44 is fitted into the test shaft 43,
Piano wire 45, internal load lever 15, vacuum flange 18
A load W is applied via a bellows 16 attached to and an external load lever 17.

外部負荷レバー17は案内軸受46で軸方向に案内され
る。案内軸受46はハウジング48を介して架台3に固
定される。試験ブツシュ44には負荷重と反対側にトル
クレバー49、トルク受け50、摩擦力測定器51.レ
バー52、真空メクテフランジ53を介して、真空容器
1の下容器1bの胴部に溶接された真空フランジ54に
取りつけられている。真空フランジ54は真空フランジ
18に対して180°の位置に設けられている。
The external load lever 17 is guided in the axial direction by a guide bearing 46. The guide bearing 46 is fixed to the pedestal 3 via a housing 48. The test bushing 44 has a torque lever 49, a torque receiver 50, and a friction force measuring device 51 on the side opposite to the load. It is attached via a lever 52 and a vacuum flange 53 to a vacuum flange 54 welded to the body of the lower container 1b of the vacuum container 1. Vacuum flange 54 is provided at a position of 180° with respect to vacuum flange 18.

この実施例は真空容器1の下容器に、負荷力付加用の試
験要素と測定要素とを設けるための2つの真空フランジ
部1.8.54を設け、ビン・ブツシュの摩擦、摩耗試
験が可能である。
In this embodiment, two vacuum flanges 1.8.54 are provided on the lower container of the vacuum container 1 to provide a test element and a measurement element for applying a load force, making it possible to perform friction and wear tests on bottles and bushes. It is.

第4図は本発明の装置の他の実施例を示すもので、この
実施例は真空中での熱試験の例である。
FIG. 4 shows another embodiment of the apparatus of the present invention, and this embodiment is an example of a thermal test in vacuum.

回転導入機5の回転軸7には断熱部材55を介し、試料
56が取りつけられている。この試F456は真空容器
1の上容器1aの天板1gに設けた光源系30で加熱さ
れる。
A sample 56 is attached to the rotation shaft 7 of the rotation introduction device 5 via a heat insulating member 55. This sample F456 is heated by the light source system 30 provided on the top plate 1g of the upper container 1a of the vacuum container 1.

そのときの光が当る試料56上面の温度は上容器1aの
天板1gに溶接された真空フランジ57に取りつけたの
ぞき窓58を介して赤外線温度計59で測定する。真空
フランジ18にはのぞき窓60を介し赤外線温度計61
で試料56の側面の温度を測定する。回転軸7を回転す
ることにより、どの角度の側面の温度を測定することが
できる。
The temperature of the upper surface of the sample 56, which is illuminated by the light, is measured with an infrared thermometer 59 through a viewing window 58 attached to a vacuum flange 57 welded to the top plate 1g of the upper container 1a. An infrared thermometer 61 is connected to the vacuum flange 18 through a viewing window 60.
The temperature of the side surface of the sample 56 is measured. By rotating the rotating shaft 7, the temperature of the side surface at any angle can be measured.

この実施例は真空容器1に負荷要素を取付けるための1
つの真空フランジ28と測定要素を取付けるための真空
フランジ18.57を設けたので、試験機能をさらに向
上させることができる。
In this embodiment, a 1 for attaching a load element to a vacuum vessel 1
The provision of two vacuum flanges 28 and a vacuum flange 18.57 for mounting measuring elements allows the testing capability to be further improved.

第5図は本発明の装置のさらに他の実施例を示すもので
、この実施例は熱試験の他の例であり、第4図に示す実
施例における光源系30を真空フランジ18に取りつけ
、赤外線温度計61を真空フランジ18に取りつけたも
のである。この実施例によれば、試料56における光源
系3oと反対側の面の温度を赤外線温度計61で測定す
ることができる。
FIG. 5 shows still another embodiment of the apparatus of the present invention, and this embodiment is another example of thermal testing, in which the light source system 30 in the embodiment shown in FIG. 4 is attached to the vacuum flange 18, An infrared thermometer 61 is attached to the vacuum flange 18. According to this embodiment, the temperature of the surface of the sample 56 opposite to the light source system 3o can be measured with the infrared thermometer 61.

以上説明したように、本発明の実施例によれば、真空容
器1に少なくとも1つ以上の負荷付与要素または測定要
素を脱着可能にするための真空フランジを設けたので、
この真空フランジを用いることにより、真空環境下での
種々の試験が可能となる。その結果、試験装置の汎用性
が向上すると共に、使用性も向上するものである。
As explained above, according to the embodiment of the present invention, the vacuum vessel 1 is provided with a vacuum flange for making at least one load applying element or measuring element detachable.
By using this vacuum flange, various tests can be performed in a vacuum environment. As a result, the versatility of the testing device is improved and its usability is also improved.

〔発明の効果〕〔Effect of the invention〕

本発明によれば一つの真空装置で種々の真空環境試験が
できるので効率が良く、経済的に実験できる効果がある
According to the present invention, various vacuum environment tests can be performed with one vacuum device, which is effective in making experiments efficient and economical.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明の試験装置の一例を示す縦断面図、第2
図〜第5図はそれぞれ本発明の試験装置の種々の試験例
を示す図である。 1・・・真空容器、2・・・車軸、3・・・架台、5・
・・回転導入機、6・・・電動機、7・・・回転軸、8
・・・試料受け、10・・・摩擦試料、11・・・相手
試料、19.27・・・クライオパネル、31・・・タ
ーボ分子ポンプ、32・・・ロータリポンプ。 オ 1 圀 才27 オ 3 口 第4 口
Fig. 1 is a longitudinal cross-sectional view showing an example of the test device of the present invention;
5 to 5 are diagrams showing various test examples of the test apparatus of the present invention, respectively. 1... Vacuum container, 2... Axle, 3... Frame, 5...
...Rotation introduction machine, 6...Electric motor, 7...Rotating shaft, 8
... Sample receiver, 10... Friction sample, 11... Opposite sample, 19.27... Cryopanel, 31... Turbo molecular pump, 32... Rotary pump. O 1 Kousai 27 O 3 Mouth 4th mouth

Claims (1)

【特許請求の範囲】 1、真空環境下で試験を行う装置において、真空環境空
間を形成する真空容器に、試料装着部と、試料に対する
負荷系要素、加熱要素あるいは測定要素の少なくとも1
つ以上の要素を脱着するための脱着部とを設けたことを
特徴とする真空環境試験装置。 2、試料装着部は真空容器の底部に設けたことを特徴と
する特許請求の範囲第1項記載の真空環境試験装置。 3、試料装着部は回転駆動装置に連結したことを特徴と
する特許請求の範囲第2項記載の真空環境試験装置。 4、脱着部は各要素を取付けるための真空フランジであ
ることを特徴とする特許請求の範囲第3項記載の真空環
境試験装置。
[Claims] 1. In an apparatus for testing in a vacuum environment, a vacuum container forming a vacuum environment space includes a sample mounting section and at least one of a loading system element for the sample, a heating element, or a measuring element.
A vacuum environment test device characterized by being provided with a detaching section for attaching and detaching two or more elements. 2. The vacuum environment test apparatus according to claim 1, wherein the sample mounting section is provided at the bottom of the vacuum container. 3. The vacuum environment testing device according to claim 2, wherein the sample mounting section is connected to a rotational drive device. 4. The vacuum environment test apparatus according to claim 3, wherein the attachment/detachment part is a vacuum flange for attaching each element.
JP18952184A 1984-09-12 1984-09-12 Vacuum environment tester Granted JPS6168535A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18952184A JPS6168535A (en) 1984-09-12 1984-09-12 Vacuum environment tester

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18952184A JPS6168535A (en) 1984-09-12 1984-09-12 Vacuum environment tester

Publications (2)

Publication Number Publication Date
JPS6168535A true JPS6168535A (en) 1986-04-08
JPH0215812B2 JPH0215812B2 (en) 1990-04-13

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
JP18952184A Granted JPS6168535A (en) 1984-09-12 1984-09-12 Vacuum environment tester

Country Status (1)

Country Link
JP (1) JPS6168535A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6332349A (en) * 1986-07-25 1988-02-12 Suga Shikenki Kk Vacuum fading testing machine
CN103335769A (en) * 2013-07-03 2013-10-02 中国科学院力学研究所 Weak force measuring device for electric thruster
CN105372142A (en) * 2015-12-15 2016-03-02 济南益华摩擦学测试技术有限公司 High-temperature vacuum fretting corrosion-wear test bed
CN107356524A (en) * 2017-06-20 2017-11-17 西安理工大学 The frictional wear test device of wear extent on-line measurement under a kind of vacuum environment

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0551519U (en) * 1991-12-12 1993-07-09 富士元工業株式会社 Curved device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5631537A (en) * 1979-08-17 1981-03-30 Honda Motor Co Ltd Connecting rod for internal combustion engine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5631537A (en) * 1979-08-17 1981-03-30 Honda Motor Co Ltd Connecting rod for internal combustion engine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6332349A (en) * 1986-07-25 1988-02-12 Suga Shikenki Kk Vacuum fading testing machine
CN103335769A (en) * 2013-07-03 2013-10-02 中国科学院力学研究所 Weak force measuring device for electric thruster
CN105372142A (en) * 2015-12-15 2016-03-02 济南益华摩擦学测试技术有限公司 High-temperature vacuum fretting corrosion-wear test bed
CN107356524A (en) * 2017-06-20 2017-11-17 西安理工大学 The frictional wear test device of wear extent on-line measurement under a kind of vacuum environment

Also Published As

Publication number Publication date
JPH0215812B2 (en) 1990-04-13

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