JPS625631Y2 - - Google Patents
Info
- Publication number
- JPS625631Y2 JPS625631Y2 JP4124783U JP4124783U JPS625631Y2 JP S625631 Y2 JPS625631 Y2 JP S625631Y2 JP 4124783 U JP4124783 U JP 4124783U JP 4124783 U JP4124783 U JP 4124783U JP S625631 Y2 JPS625631 Y2 JP S625631Y2
- Authority
- JP
- Japan
- Prior art keywords
- detection rod
- test piece
- displacement
- magnetic core
- test
- 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.)
- Expired
Links
- 238000012360 testing method Methods 0.000 claims description 41
- 238000001514 detection method Methods 0.000 claims description 24
- 238000006073 displacement reaction Methods 0.000 claims description 13
- 238000004154 testing of material Methods 0.000 claims description 9
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 238000005260 corrosion Methods 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 6
- 239000007788 liquid Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000005336 cracking Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は材料試験機に関し、更に詳細には高圧
環境下又は減圧環境下において材料に負荷を与
え、その変形と負荷との関係等を変化させること
により材料試験を行なう材料試験機に関する。[Detailed description of the invention] [Field of industrial application] The present invention relates to a material testing machine, and more specifically, it applies a load to a material in a high-pressure environment or a reduced-pressure environment, and changes the relationship between its deformation and the load. This invention relates to a material testing machine that performs material testing by
従来、材料試験を行うにあたつては、第３図に
示すように試験片５１の標点間に伸び測定器５４
を取り付けＡ，Ｂ間の伸びを検出しその伸びをサ
ーボモーターＭの回転を制御することにより行
う。この場合伸びの検知には１個の差動トランス
５２と１個の磁性コア５３を使用している。この
ような装置では常温大気圧下での試験を行なうこ
とはできるが密封容器内及び特殊雰囲気下では伸
びの検知が困難であり、そのため使用できなかつ
た。そのため高圧環境下又は減圧環境下で材料試
験を行う際には第４図のような材料試験機を用い
ていた。第４図は、密閉形腐食槽５５内の試験片
５１に負荷（伸びの変形）を与える場合、プルロ
ツト５６の速度を本体フレーム５７に固定した差
動トランス５２にて検出し、サーボモーターＭを
制御して行う。
Conventionally, when performing a material test, an elongation measuring device 54 is inserted between the gauge points of a test piece 51 as shown in FIG.
The extension between A and B is detected and the extension is controlled by controlling the rotation of the servo motor M. In this case, one differential transformer 52 and one magnetic core 53 are used to detect the extension. Although such a device can perform tests at room temperature and atmospheric pressure, it is difficult to detect the extension in a sealed container or in a special atmosphere, and therefore it cannot be used. Therefore, when performing material tests in a high-pressure or low-pressure environment, a material testing machine as shown in Figure 4 has been used. In Figure 4, when a load (deformation of extension) is applied to a test piece 51 in a sealed corrosion tank 55, the speed of a pull rod 56 is detected by a differential transformer 52 fixed to a main frame 57 and the servo motor M is controlled.
この方法では、求める試験片標点間の距離の測
定の際、実際の距離測定値ではなくプルロツトと
本体下部間５８の伸びが合計されてしまうため正
確な負荷（伸び）を与えることが困難であつた。
With this method, when measuring the desired distance between the specimen gauges, the elongation between the pull rod and the lower part of the main body 58 is summed up instead of the actual distance measurement value, making it difficult to apply an accurate load (elongation). It was hot.
本考案は、上記問題点を解決するため試験片の
測定すべき標点を密封容器内に設定し、かつ、そ
の標点の変位をトランスと磁性コアの組合せによ
り密封容器外より測定可能にすることにより、高
圧環境下、又は減圧環境下における正確な材料試
験を可能にしたものである。
In order to solve the above problems, the present invention sets the gauge point to be measured on the test piece inside the sealed container, and makes it possible to measure the displacement of the gauge point from outside the sealed container using a combination of a transformer and a magnetic core. This enables accurate material testing under high pressure or reduced pressure environments.
そして、そのため本考案は試験片を高圧又は真
空下で試験するため、その内部に設置する密封型
圧力容器と；
上記試験片の所定の１点の変位に対応して移動
し、第１の磁性コアを有する第１の検出棒と；
上記第１の磁性コアの近傍であつて上記密封型
圧力容器外に設けられ、上記第１の検出棒の移動
変位に対応する信号を出力する第１のトランス
と；
上記試験片の別の所定の１点の変位に対応して
移動し、第２の磁性コアを有する第２の検出棒
と；
上記第２の検出棒の上記第２の磁性コアの近傍
であつて上記密封型圧力容器外に設けられ、上記
第２の検出棒の移動変位に対応する信号を出力す
る第２のトランスと；
上記試験片の両端に接続し、上記試験片を圧縮
又は引張る手段と；
上記圧縮／引張り手段に電気的に接続され上記
第１及び第２のトランスの出力にもとずき上記所
定の２点間の距離を計測し、その計測値にもとず
いて、上記試験片を圧縮又は引張り上記試験片内
に所望の変形を生ぜしめるように上記圧縮／引張
り手段を制御する手段とを含み、上記第１及び第
２の検出棒全体が上記密封型圧力容器内にあり、
上記検出棒の変位を外部に検出することを特徴と
する材料試験機を提供する。 Therefore, in order to test the test piece under high pressure or vacuum, the present invention includes a sealed pressure vessel installed inside the test piece; a first detection rod having a core; a first detection rod that is provided near the first magnetic core and outside the sealed pressure vessel and outputs a signal corresponding to the displacement of the first detection rod; a transformer; a second detection rod that moves in response to the displacement of another predetermined point of the test piece and has a second magnetic core; a second transformer that is provided nearby and outside the sealed pressure vessel and outputs a signal corresponding to the displacement of the second detection rod; connected to both ends of the test piece and compresses the test piece; or a tensioning means; electrically connected to the compression/tensioning means to measure the distance between the two predetermined points based on the outputs of the first and second transformers, and based on the measured value; and means for controlling the compression/tensioning means to compress or tension the test specimen to produce a desired deformation in the test specimen, the entire first and second sensing rods being exposed to the sealed pressure. inside the container,
Provided is a material testing machine characterized by externally detecting the displacement of the detection rod.
以下本考案の好適実施例を添付図面とともに説
明する。
Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.
第１図は本考案による試験機の実施例を示し、
第１図の試験機の腐蝕試験槽が有するものであり
引張応力を加えた場合の定歪速度を与えるように
なつている。しかし試験片に力を加えそれを変形
させることにより、圧縮応力、剪断応力、曲げ力
等の負荷を加える場合にも本発明の試験機を適用
できることは当業者によつて、理解されることで
ありまた、腐蝕試験槽が更に高温・高圧下で行う
場合でも本考案の試験機を用いることもできる。 FIG. 1 shows an embodiment of the testing machine according to the present invention,
This is what the corrosion test tank of the testing machine shown in Figure 1 has, and is designed to give a constant strain rate when tensile stress is applied. However, it will be understood by those skilled in the art that the testing machine of the present invention can be applied to cases in which loads such as compressive stress, shear stress, and bending force are applied by applying force to the test piece to deform it. Furthermore, the testing machine of the present invention can also be used even when the corrosion test chamber is used at higher temperatures and higher pressures.
第１図に示す様に試験片１は容器本体２と容器
蓋３から成る容器４にゴム栓５及びＯリング６に
よつて密封的に取付けられる。容器蓋３は不図示
のボルトによつてＯリング６′を介して本体２に
固着される。試験片標点７，８にはシヨルダ９，
１０が取付けられる。このシヨルダは第２図に示
す様に絶縁材樹脂又は絶縁被覆されている金属製
の取付具１１と２個のシヨルダ部材１２，１３と
から成り、これらは試験片１をはさんでボルト１
４，１５によつて試験片標点部に固定的に取付け
られる。シヨルダ部の形状及び絶縁材は応力腐蝕
割れ試験を目的とする場合でシヨルダと試験片と
を絶縁する必要が有り、正確な応力腐蝕割れのデ
ータを求めるための伸び測定器として考案したも
のである。シヨルダ１０も同様の構成である。 As shown in FIG. 1, the test piece 1 is hermetically attached to a container 4 consisting of a container body 2 and a container lid 3 using a rubber stopper 5 and an O-ring 6. The container lid 3 is fixed to the main body 2 via an O-ring 6' with a bolt (not shown). Shoulder 9 is attached to specimen gauges 7 and 8.
10 is attached. As shown in FIG. 2, this shoulder consists of a metal fitting 11 coated with an insulating resin or an insulating material and two shoulder members 12 and 13, which sandwich a test piece 1 between them and a bolt 1.
4 and 15, it is fixedly attached to the test piece gauge part. The shape and insulation material of the shoulder part is designed for the purpose of stress corrosion cracking tests, where it is necessary to insulate the shoulder and the test piece, and as an elongation measuring device to obtain accurate stress corrosion cracking data. . The shoulder 10 also has a similar configuration.
容器本体２には腐蝕液入口１６及び同出口１７
が設けられ容器内部は試験片の標点間が腐蝕液１
８に接触する様に満たされている。 The container body 2 has a corrosive liquid inlet 16 and a corrosive liquid outlet 17.
is provided, and inside the container, the area between the gauge marks of the test piece is corrosive liquid 1.
It is filled so that it touches 8.
シヨルダ９には検出棒１９の端部が接触する。
検出棒１９は検出管２０の内部に摺動可能に設け
られている。容器蓋３には管台２１が溶接によつ
て取付けられこの管台は内部にねじ２２および肩
部２３が設けられている。検出管２０は中央に開
口２４を有するボルト部材２５によつてガスケツ
ト２６を介して容器蓋３に固着される。検出棒１
９の上方には磁性のコア２７が取付けられ、さら
にその上方には端部材２８が設けられている。端
部材２８はばね２９によつて下方に偏倚されてい
る。検出管２０の上方は閉鎖端であり、ばね２９
の他端が突接する。検出管２０の外部にはコア２
７に対応する位置においてトランス３０が取付部
材３１によつて検出管２０に取付けられている。 The end of the detection rod 19 comes into contact with the shoulder 9 .
The detection rod 19 is slidably provided inside the detection tube 20. A nozzle holder 21 is attached to the container lid 3 by welding, and this nozzle holder is provided with a screw 22 and a shoulder portion 23 inside. The detection tube 20 is fixed to the container lid 3 via a gasket 26 by a bolt member 25 having an opening 24 in the center. Detection rod 1
A magnetic core 27 is attached above the magnetic core 9, and an end member 28 is further provided above the magnetic core 27. End member 28 is biased downwardly by spring 29. The upper part of the detection tube 20 is a closed end, and the spring 29
The other ends of the two abut against each other. A core 2 is provided outside the detection tube 20.
A transformer 30 is attached to the detection tube 20 by a mounting member 31 at a position corresponding to 7.
トランス３０は演算器３２に電気的に接続さ
れ、コア２７とトランス３０間の相対的移動量△
laを電気信号に変換して２位置演算変位測定器ア
ンプ３２に送る。 The transformer 30 is electrically connected to the computing unit 32, and the relative movement amount △ between the core 27 and the transformer 30 is
la is converted into an electrical signal and sent to the two-position calculation displacement measuring instrument amplifier 32.
以上述べた変位検出構造は標点７についてのも
のであるが、標点８についても全く同様であり、
相当する部材の符号にａを付すことによつて説明
を省略する。 The displacement detection structure described above is for gauge point 7, but it is exactly the same for gauge point 8.
Explanation will be omitted by adding a to the reference numerals of corresponding members.
２位置演算変位測定器アンプ３２に送られたΔ
laおよびΔlbに対応する信号は、該２位置演算変
位測定器アンプ３２によつて減算され、標点７，
８間の変形量Δｌに相当する信号が出力される。
Δｌに相当する信号は制御器３３に入力され、制
御器３３は、出力をサーボアンプ３５に送りプル
ロツド３４を介して試験片１に引張荷重を加える
モータＭを制御して、歪速度が一定となる様にす
る。 Δ sent to the two-position calculation displacement measuring instrument amplifier 32
The signals corresponding to la and Δlb are subtracted by the two-position calculation displacement measuring device amplifier 32, and the signals corresponding to the gauge points 7,
A signal corresponding to the deformation amount Δl between 8 and 8 is output.
The signal corresponding to Δl is input to the controller 33, and the controller 33 controls the motor M that sends the output to the servo amplifier 35 and applies a tensile load to the test piece 1 via the pull rod 34, so that the strain rate is constant. make it happen.
第５図は装置全体の実施例を示す。第１，２図
と共に説明された部分は概略的に示されている下
部固定台６１には第１、２図と共に説明された差
動トランス３０，３０ａ、試験片１、腐蝕槽４を
含む装置部分の下部が固定されている。下部固定
台の下方には伝達ギヤ６２，６３が設けられこれ
らのギヤは減速機６４を介してサーボモータＭに
より駆動される。ギヤ６２は送りねじ６５を回転
させて移動クロスヘツド６６に上方移動を与え
る。移動クロスヘツド６６には、ロードセル６７
が設けられ、これらを介して試験片１には引張力
が加えられる。尚、第５図に示す様に制御器３３
は速度比較回路３３１及び速度設定発信器３３２
より成る。 FIG. 5 shows an embodiment of the entire device. The parts explained in conjunction with FIGS. 1 and 2 are schematically shown. The lower fixing table 61 includes the differential transformers 30, 30a, the test piece 1, and the corrosion tank 4 explained in conjunction with FIGS. 1 and 2. The lower part of the part is fixed. Transmission gears 62 and 63 are provided below the lower fixed base, and these gears are driven by a servo motor M via a reduction gear 64. Gear 62 rotates lead screw 65 to provide upward movement to moving crosshead 66. The moving crosshead 66 includes a load cell 67.
are provided, and a tensile force is applied to the test piece 1 through these. In addition, as shown in FIG.
are speed comparison circuit 33 1 and speed setting transmitter 33 2
Consists of.
上記の如き構成をとることにより高圧環境下又
は減圧環境下において、試験片の変形を、直接的
にかつ、高圧、又は減圧環境下において測定でき
るため、正確な測定が不能となるのである。
With the above configuration, the deformation of the test piece can be directly measured in a high-pressure or reduced-pressure environment, which makes accurate measurement impossible.
第１図は本考案に従う材料試験機（定歪速度
用）の側面図を示し一部は断面図；第２図はシヨ
ルダの構造を示し、第１図の−に従つて見た
状態を示した図；第３図、第４図は公知技術によ
る材料試験機の側面図；及び、第５図は、本考案
による定歪速度試験機の全体を示す側面及び試験
用測定制御部のブロツク図である。
主要部分の符号の説明、１９……第１の検出
棒、３０……第１のトランス、１９ａ……第２の
検出棒、３０ａ……第２のトランス、Ｍ……荷重
を与える装置、３２，３３……制御装置。
Fig. 1 shows a side view of the material testing machine (for constant strain rate) according to the present invention, and part of it is a sectional view; Fig. 2 shows the structure of the shoulder, and shows the state seen according to - in Fig. 1. Figures 3 and 4 are side views of a material testing machine according to the known technology; and Figure 5 is a side view showing the entire constant strain rate testing machine according to the present invention and a block diagram of the test measurement control unit. It is. Explanation of symbols of main parts, 19...First detection rod, 30...First transformer, 19a...Second detection rod, 30a...Second transformer, M...Loading device, 32 , 33...control device.
Claims (1)
内部に設置する密封型圧力容器４と； 前記試験片の所定の１点７の変位に対応して移
動し、第１の磁性コア２７を有する第１の検出棒
１９と； 前記第１の磁性コアの近傍であつて前記密封型
圧力容器外に設けられ、前記第１の検出棒の移動
変位に対応する信号を出力する第１のトランス３
０と； 前記試験片の別の所定の１点８の変位に対応し
て移動し、第２の磁性コアを有する第２の検出棒
１９ａと； 前記第２の検出棒の前記第２の磁性コアの近傍
であつて前記密封型圧力容器外に設けられ、前記
第２の検出棒の移動変位に対応する信号を出力す
る第２のトランス３０ａと； 前記試験片の両端に接続し、該試験片を圧縮又
は引張る手段Ｍと； 前記圧縮／引張り手段Ｍに電気的に接続され前
記第１及び第２のトランスの出力にもとずき前記
所定の２点間の距離を計測し、その計測値にもと
ずいて、前記試験片を圧縮又は引張り前記試験片
内に所望の変形を生ぜしめるように前記圧縮／引
張り手段を制御する手段３５，３２，３３とを含
み、前記第１及び第２の検出棒全体が前記密封型
圧力容器内にあり、該検出棒の変位を外部に検出
することを特徴とする材料試験機。[Claims for Utility Model Registration] A sealed pressure vessel 4 installed inside the test piece in order to test the test piece under high pressure or vacuum; a first detection rod 19 having a first magnetic core 27; a signal provided near the first magnetic core and outside the sealed pressure vessel, and corresponding to the displacement of the first detection rod; The first transformer 3 outputs
0; a second detection rod 19a that moves in response to the displacement of another predetermined point 8 of the test piece and has a second magnetic core; and the second magnetic core of the second detection rod. a second transformer 30a that is provided near the core and outside the sealed pressure vessel and outputs a signal corresponding to the movement displacement of the second detection rod; connected to both ends of the test piece and connected to the test piece; means M for compressing or pulling the piece; measuring the distance between the two predetermined points based on the outputs of the first and second transformers electrically connected to the compression/pulling means M; means 35, 32, 33 for controlling the compression/tensioning means to compress or tension the test specimen to produce a desired deformation in the test specimen based on the first and second A material testing machine characterized in that the entire detection rod No. 2 is located within the sealed pressure vessel, and displacement of the detection rod is detected externally.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4124783U JPS58175443U (en) | 1983-03-24 | 1983-03-24 | material testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4124783U JPS58175443U (en) | 1983-03-24 | 1983-03-24 | material testing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58175443U JPS58175443U (en) | 1983-11-24 |
| JPS625631Y2 true JPS625631Y2 (en) | 1987-02-09 |
Family
ID=30052433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4124783U Granted JPS58175443U (en) | 1983-03-24 | 1983-03-24 | material testing machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58175443U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4572001A (en) * | 1984-01-30 | 1986-02-25 | Queen's University At Kingston | Method and apparatus for measuring thermodynamic response |
| KR102354564B1 (en) * | 2020-03-27 | 2022-01-24 | 주식회사 포스코 | Test apparatus |
-
1983
- 1983-03-24 JP JP4124783U patent/JPS58175443U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58175443U (en) | 1983-11-24 |
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