JP2007240214A - Testing machine with pressure-resistant chamber and test method using same - Google Patents

Testing machine with pressure-resistant chamber and test method using same Download PDF

Info

Publication number
JP2007240214A
JP2007240214A JP2006060056A JP2006060056A JP2007240214A JP 2007240214 A JP2007240214 A JP 2007240214A JP 2006060056 A JP2006060056 A JP 2006060056A JP 2006060056 A JP2006060056 A JP 2006060056A JP 2007240214 A JP2007240214 A JP 2007240214A
Authority
JP
Japan
Prior art keywords
pressure
partition wall
test
test piece
fluid
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
JP2006060056A
Other languages
Japanese (ja)
Other versions
JP4775706B2 (en
Inventor
Toshio Ogata
俊夫 緒形
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.)
National Institute for Materials Science
Original Assignee
National Institute for Materials Science
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 National Institute for Materials Science filed Critical National Institute for Materials Science
Priority to JP2006060056A priority Critical patent/JP4775706B2/en
Publication of JP2007240214A publication Critical patent/JP2007240214A/en
Application granted granted Critical
Publication of JP4775706B2 publication Critical patent/JP4775706B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To prevent the accident caused by a high-pressure fluid by reducing the use amount of a fluid, which constitutes a special environment in a load test under the special environment to the utmost by effectively utilizing a conventional testing machine with a pressure-resistant chamber. <P>SOLUTION: The testing machine with the pressure-resistant chamber is constituted so that a flexible partition wall for isolating the space around a test piece and the space in another pressure-resistant chamber under a hermetic closure is provided and the fluid, which constitutes the special environment, is injected in the space around the test piece within the partition wall. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、耐圧室内に入れた状態で試験片に対する荷重試験を行うことができる耐圧室付き試験機ならびにそれを使用した試験方法に関する。   The present invention relates to a testing machine with a pressure chamber capable of performing a load test on a test piece in a state of being placed in a pressure chamber and a test method using the same.

新しい材料が開発された場合、または既存の材料であっても特殊な環境下で用いられる場合には、その特有の環境雰囲気下での材料の特性を正確に評価することは不可欠である。特に、高度な機械的強度特性や耐環境特性が要求される構造材料である場合には、様々な条件での環境下において優れた特性を有することが求められ、たとえば、その部材の目的、用途、種類に応じて引張特性、疲労特性、疲労亀裂進展特性、クリープ特性、破壊靭性特性、衝撃特性等の機械的強度特性だけでなく、耐酸性、耐アルカリ性、耐酸化性、耐腐食性等の耐環境特性も優れていることが求められる。しかも、構造用材料に対してはこれらの特性は常温や常圧というような温和な環境だけではなく、高温から低温、あるいは高圧から低圧、さらには酸性やアルカリ性等の過酷な環境においても同様に優れた特性を有することが求められる。このため、特有の、そして様々な条件下の環境雰囲気下での材料特性の評価が是非とも必要になる。   When new materials are developed or when existing materials are used in a special environment, it is essential to accurately evaluate the properties of the material under its specific environmental atmosphere. In particular, in the case of a structural material that requires high mechanical strength characteristics and environmental resistance characteristics, it is required to have excellent characteristics under an environment under various conditions. For example, the purpose and use of the member Depending on the type, not only mechanical strength properties such as tensile properties, fatigue properties, fatigue crack growth properties, creep properties, fracture toughness properties, impact properties, but also acid resistance, alkali resistance, oxidation resistance, corrosion resistance, etc. Excellent environmental resistance is also required. Moreover, for structural materials, these characteristics are not limited to mild environments such as normal temperature and normal pressure, but also in harsh environments such as high temperature to low temperature, high pressure to low pressure, and even acidic and alkaline environments. It is required to have excellent characteristics. For this reason, it is necessary to evaluate the characteristics of the material in an environmental atmosphere that is unique and under various conditions.

従来では、特許文献1〜4に示すように、材料の機械的強度特性や耐環境特性の試験を過酷な環境下で行なうに際しては、試験片を温度や圧力が任意に調整できる密閉された空間内に試験装置を設置し、その空間に特殊な環境を構成する流体(例えば、高圧ガス、高圧液、高温ガス、高温液など、これらを総称して環境構成流体という。)を外部から送り込み、試験を行うことしかできなかった。   Conventionally, as shown in Patent Documents 1 to 4, when testing mechanical strength characteristics and environmental resistance characteristics of materials in a harsh environment, a sealed space in which the temperature and pressure of the test piece can be arbitrarily adjusted. A test apparatus is installed in the space, and a fluid that constitutes a special environment in the space (for example, high pressure gas, high pressure liquid, high temperature gas, high temperature liquid, etc., these are collectively referred to as environment constituent fluid) is sent from the outside. I could only do the test.

このような方法では、測定に必要な環境を創出して保持するために多大な設備と費用を必要とするだけでなく試験のための荷重や試薬を正確に付与することが難しく、環境によっては未だ有効なデータを得る方法として確立されていないのが実情である。
: 特開平09−196844号公報 : 特開2004−132752号公報 : 特開2001−208675号公報 : 特開2004−077230号公報
Such a method not only requires a large amount of equipment and cost to create and maintain the environment necessary for measurement, but also it is difficult to accurately apply the load and reagent for the test. The fact is that it has not yet been established as a method for obtaining valid data.
: JP 09-196844 A : JP 2004-132752 A : JP 2001-208675 A : JP 2004-072230 A

本発明は、このような実情に鑑み、特殊な環境を構成する流体の使用量を極力押さえるのみならず、高圧状態を耐圧室内において生じさせることで、高圧流体による事故を防止することができるようにすることを目的とする。   In view of such circumstances, the present invention not only suppresses the amount of fluid used in a special environment as much as possible, but also prevents an accident due to a high-pressure fluid by causing a high-pressure state to occur in the pressure-resistant chamber. The purpose is to.

本第一発明の耐圧室付き試験機は、試験片周囲の空間と他の耐圧室内の空間とを密封状態で隔絶する可撓性隔壁を設け、当該隔壁内の試験片周囲の空間に特殊環境を構成する流体を注入してあることを特徴とする構成を採用した。   The testing machine with a pressure chamber according to the first aspect of the present invention is provided with a flexible partition wall that seals the space around the test piece and the other pressure chambers in a sealed state, and a special environment is provided in the space around the test piece in the partition wall. The structure characterized by injecting the fluid that constitutes was adopted.

本第二発明の試験方法は、前記第1発明の試験機を用いた試験方法において、前記隔壁の外側の空間には高圧流体を注入して、前記試験片周囲の空間における圧力を隔壁を通して試験目的に応じた圧力に加圧することを特徴とする構成を採用した。   The test method of the second invention is a test method using the testing machine of the first invention, wherein a high-pressure fluid is injected into a space outside the partition wall, and the pressure in the space around the test piece is tested through the partition wall. A configuration characterized by pressurizing to a pressure according to the purpose was adopted.

前記第一発明によれは、試験片周囲の空間のみに特殊環境を構成する為の流体を貯めておくことができるので、耐圧室内全体に貯留する場合に比べ大幅にこれら流体の使用量を軽減できるので、省資源化に有効である。
さらに、第二発明のようにして試験を行うことで、外部からの環境構成流体の注入においても、高圧である必要が無く、高圧流体を取り扱う機会をへらして試験場の安全を守りやすくした。
According to the first aspect of the present invention, since the fluid for constructing the special environment can be stored only in the space around the test piece, the amount of use of these fluids is greatly reduced compared to storing in the entire pressure-resistant chamber. This is effective for saving resources.
Furthermore, by conducting the test as in the second invention, it is not necessary to use a high pressure even when injecting the environmental constituent fluid from the outside, and the opportunity to handle the high-pressure fluid is reduced, making it easy to protect the safety of the test site.

また、高圧化は耐圧室内で行われ、高圧下での環境試験も可能である。   In addition, the high pressure is performed in a pressure resistant chamber, and an environmental test under high pressure is possible.

本発明は、上記のとおりの特徴を有するものであって、以下にその実施の形態について説明する。   The present invention has the features as described above, and an embodiment thereof will be described below.

本試験機は、引張試験機であって、基盤(10)に立設した柱(11)(11)の途中に、試験機基盤(12)を保持し、その上端にクロスヘッド(13)を保持して、構造体を構成してある。
前記定盤(12)には、プルロッド(15)を前記クロスヘッド(13)には固定側治具(18)を、それぞれ保持してある。
前記プルロッド(15)は、前記定盤(12)に支えてあるアクチュエータ(14)により上下に移動自在に構成してあり、荷重測定用のロードセル(16)(17)が設けてある。
耐圧室(20)は、開閉する扉(21)とこの扉を閉止状態で固定するためのボルト(図外)を通す孔(22)、前記ボルトをねじ込むネジ孔(23)とにより構成してある。
前記耐圧室(20)内の天井部には、前記固定側治具(18)の下端部が突出してあり、床部分には、前記プルロッド(15)の上端がOリング(19)にて耐圧密封して、突出してある。
(24)は、耐圧室(20)内の圧力を測定表示する圧力計、(25)は、耐圧室(20)内の余剰な圧力を逃がすリークバルブである。
前記耐圧室(20)内の温度を制御する温度調節機(30)からの配管(31)に繋がる熱交換器(32)が耐熱室内に設置され、貯留タンク(41)からポンプ(42)を通りバルブ(44)を介して耐熱室内に至る配管(43)が設けてある。
前記ポンプ(42)によりタンク(41)内に貯めた液体(通常は清浄水)を耐圧室(20)内に送り込んで、同室内の圧力を高圧にする。
This testing machine is a tensile testing machine, which holds the testing machine base (12) in the middle of the pillars (11) and (11) erected on the base (10), and has a crosshead (13) at its upper end. The structure is formed by holding.
A pull rod (15) is held on the surface plate (12), and a fixed jig (18) is held on the cross head (13).
The pull rod (15) is configured to be movable up and down by an actuator (14) supported by the surface plate (12), and is provided with load cells (16) and (17) for load measurement.
The pressure chamber (20) includes a door (21) that opens and closes, a hole (22) through which a bolt (not shown) for fixing the door in a closed state, and a screw hole (23) into which the bolt is screwed. is there.
A lower end portion of the fixed side jig (18) protrudes from a ceiling portion in the pressure resistant chamber (20), and an upper end of the pull rod (15) is pressure resistant by an O-ring (19) on the floor portion. Sealed and protruding.
(24) is a pressure gauge that measures and displays the pressure in the pressure-resistant chamber (20), and (25) is a leak valve that releases excess pressure in the pressure-resistant chamber (20).
A heat exchanger (32) connected to a pipe (31) from a temperature controller (30) for controlling the temperature in the pressure-resistant chamber (20) is installed in the heat-resistant chamber, and the pump (42) is supplied from the storage tank (41). A pipe (43) extending into the heat-resistant chamber through a passage valve (44) is provided.
The liquid (usually clean water) stored in the tank (41) is sent into the pressure resistant chamber (20) by the pump (42) to increase the pressure in the chamber.

(1)は前記上部側治具(17)とプルロッド(15)とに保持された棒状試験片である。
試験片(1)は、この隔壁(2)は、締め付けバンド(6)により上下を試験片(1)密着固定してある。
この隔壁(2)は、試験片(1)の端部を通しその周辺に密着する口部(2a)(2a)を上下に形成したボール状であって、ゴム又は弾性のある樹脂シートにより形成してある。
前記バンド(6)は、バンド本体(6a)の両端部に設けたフランジ(6b)(6b)を貫通するボルト(6c)と、このボルト(6c)をネジ込むナット(6d)とにより構成してあり、前記ボルト(6c)の締緩により、バンド本体(6a)の内径を変更できるようにしてある。
このようにして試験片(1)周囲の空間と、他の耐圧室(20)内空間とを密封状に区画してある。
(3)は前記ボール状の隔壁(2)の出入り口で、クリップ(4)により閉止されている。
(1) is a bar-shaped test piece held by the upper jig (17) and the pull rod (15).
In the test piece (1), the upper and lower sides of the partition wall (2) are tightly fixed by the fastening band (6).
The partition wall (2) is formed in a ball shape in which the mouth portions (2a) and (2a) that pass through the end portion of the test piece (1) and are in close contact with the periphery thereof, and are formed of rubber or an elastic resin sheet. It is.
The band (6) is constituted by a bolt (6c) passing through flanges (6b) and (6b) provided at both ends of the band body (6a) and a nut (6d) into which the bolt (6c) is screwed. The inner diameter of the band body (6a) can be changed by tightening or loosening the bolt (6c).
Thus, the space around the test piece (1) and the space in the other pressure-resistant chamber (20) are partitioned in a sealed manner.
(3) is an entrance / exit of the ball-shaped partition wall (2), which is closed by a clip (4).

このようにして構成したので、前記隔壁(2)内に例えば、アルゴン、水素、酸素等の特殊環境を構成する流体を常圧又は少々高圧に注入しておき、次にポンプ(42)により室内を加圧することで、隔壁(2)を介して内部の環境構成流体が加圧され、実験目的に適した高圧状態とすることができた。
この状態で引張試験を行うことで、特殊な環境下での材料の評価を行うことができた。
この場合、環境構成流体の使用量は耐圧室(20)内全体に充満させることからすれば数十分の1以下であった。
また、耐圧室(20)外からの加圧は、環境構成流体を使用しないので、その分安全であった。
Since it is configured in this manner, a fluid constituting a special environment such as argon, hydrogen, oxygen, or the like is injected into the partition wall (2) at normal pressure or slightly high pressure, and then the pump (42) By pressurizing, the internal environmental constituent fluid was pressurized through the partition wall (2), and a high pressure state suitable for the purpose of the experiment could be achieved.
By conducting a tensile test in this state, the material could be evaluated in a special environment.
In this case, the amount of the environmental constituent fluid used was several tenths or less from the viewpoint of filling the entire pressure resistant chamber (20).
In addition, pressurization from the outside of the pressure-resistant chamber (20) is safer because no environmental constituent fluid is used.

本実施例は、前記実施例1においては、前記隔壁(2)が加圧により内部の試験片(1)に密着するおそれがある場合に実施する形態の例を示す。
風船型の予備貯留体(62)と前記隔壁(2)とをホース(51)を介して接続し、実質的に隔壁(2)の容量を増加した。
前記予備貯留体(62)は、隔壁(2)と同様な柔軟な材質で構成されていて、その出入り口(63)は隔壁(2)の出入り口(3)と同様にクリップにて開閉出来るようにしてある。
その他は、前記実施例1と同様なので詳しい説明を省略する。
このようにして、予め前記予備貯留体(62)と隔壁(2)内とに同じ環境構成流体を貯めておくことで、加圧比率(隔壁内の初期圧力と試験時の圧力の比率)を実施例1に比べ2倍近くに高めたとしても、隔壁(2)が試験片(1)に密着するような問題を生じないようにした。
The present embodiment shows an example of the embodiment that is implemented in the first embodiment when the partition wall (2) may be in close contact with the internal test piece (1) due to pressurization.
The balloon-shaped preliminary storage body (62) and the partition wall (2) were connected via a hose (51) to substantially increase the capacity of the partition wall (2).
The preliminary storage body (62) is made of a flexible material similar to that of the partition wall (2), and its doorway (63) can be opened and closed with a clip in the same manner as the doorway (3) of the partition wall (2). It is.
The rest is the same as in the first embodiment, and a detailed description thereof will be omitted.
In this way, by storing the same environmental constituent fluid in the preliminary reservoir (62) and the partition wall (2) in advance, the pressurization ratio (ratio between the initial pressure in the partition wall and the pressure during the test) can be set. Even when the height was increased nearly twice that of Example 1, the problem that the partition wall (2) was in close contact with the test piece (1) was prevented.

本実施例は、さらに特殊な条件における試験を行えるようにした例である。
ガスボンベ(80)からのメイン流路(81)の出口(70)を前記耐圧室(20)内に設け、この出口(70)と前記隔壁(2)の出入り口(3)とをパイプ(52)で結合し、前記ガスボンベ(80)から高圧のガスを隔壁(2)内に直接供給できるようにしたものである。
前記メイン流路(81)には、余剰ガス排気管(86)が分岐されている。
また、配管内の気体を置換するための真空タンク(89)へ繋がる流路も分岐され、いずれの分岐流路にも、開閉弁(83)(85)が設けてある。
また、メイン流路(81)中の前記分岐箇所の上手と下手にも開閉弁(82)(84)が設けてある。
下手側の開閉弁(84)は、その近くに設けた圧力センサー(90)による圧力測定の結果が、急速な減圧を示したとき、自動的に閉止するように設定してある。
さらに、下手には、手元開閉弁(91)が設けてある。
このようにして、開閉弁(82)(84)(91)を開くことにより、ガスボンベ(80)に詰められたガス(例えば、高圧水素、高圧酸素など)を出口(70)から前記隔壁(2)内に注入するようにしてある。
The present embodiment is an example in which a test under a more specific condition can be performed.
An outlet (70) of the main channel (81) from the gas cylinder (80) is provided in the pressure-resistant chamber (20), and the outlet (70) and the inlet / outlet (3) of the partition wall (2) are connected to the pipe (52). The high-pressure gas can be directly supplied from the gas cylinder (80) into the partition wall (2).
An excess gas exhaust pipe (86) is branched into the main flow path (81).
Moreover, the flow path connected to the vacuum tank (89) for substituting the gas in the piping is also branched, and an open / close valve (83) (85) is provided in any branch flow path.
In addition, on-off valves (82) and (84) are also provided on the upper and lower sides of the branch portion in the main flow path (81).
The lower-side on-off valve (84) is set to automatically close when the result of pressure measurement by the pressure sensor (90) provided nearby indicates a rapid pressure reduction.
Further, a hand opening / closing valve (91) is provided on the lower side.
Thus, by opening the on-off valves (82), (84), (91), gas (for example, high-pressure hydrogen, high-pressure oxygen, etc.) packed in the gas cylinder (80) is discharged from the outlet (70) to the partition wall (2 ).

本実施例は、隔壁(2)の別例を示す。
本実施例では、柔軟性はあるが弾力性に乏しい例えば布に気密性の樹脂をコーティングしたような素材を使用して隔壁を構成する場合に、圧力に応じた拡縮が行えるようにしたもので、全体をラクビーボール状に形成し、その側面に凹凸(2c)(2d)を形成したものである。
このようにして、生地の弾力によらずに内部空間の大小に対応できるようにした。
A present Example shows another example of a partition (2).
In this embodiment, when a partition is formed using a material that is flexible but has low elasticity, such as a cloth coated with an airtight resin, it can be scaled according to pressure. The whole is formed in the shape of a rugby ball, and irregularities (2c) and (2d) are formed on the side surfaces thereof.
In this way, the internal space can be accommodated regardless of the elasticity of the fabric.

本実施例は、破壊靱性・疲労亀裂進展試験用の試験片に適用した場合の例を示す。
試験片(411)は、破壊靱性・疲労亀裂進展試験用の試験片であって、その亀裂起点用溝(412)からの亀裂の発生状態を試験するものである。
本実施例では、亀裂発生予測箇所を隔壁(2)で覆うようにしたものである。
具体的には、亀裂発生予測箇所の断面と同じ形状の口部(2a)を上下に形成した袋状の隔壁(2)をバンド(6)により取り付けたものである。
その他は前記実施例1と同様なので詳しい説明を省略する。
This example shows an example in which the present invention is applied to a specimen for fracture toughness / fatigue crack growth test.
The test piece (411) is a test piece for fracture toughness / fatigue crack propagation test, and tests the occurrence of cracks from the crack starting groove (412).
In this embodiment, the crack occurrence predicted portion is covered with the partition wall (2).
Specifically, a bag-like partition wall (2) in which a mouth portion (2a) having the same shape as the cross section of the crack occurrence predicted portion is vertically attached is attached by a band (6).
Other details are the same as in the first embodiment, and a detailed description thereof will be omitted.

本実施例は、隔壁(2)に口部を設けず、試験片(1)に前記隔壁(2)内に通じる入口(3a)を設けた例を示す。
試験片(1)一端部に、端面から中間部に至る細い入口(3a)を形成してある。
そして、この入口(3a)にUの字状のチューブ(3b)の一端を接続する。このチューブ(3b)の他端は管継手(110)を介してガス供給経路に繋ぐ。
なお、前記チューブ(3b)には、これより小径の熱溶融性金属棒(3c)を入れてある。
このようにして、管継手(110)を介して環境構成流体を供給すると、隔壁(2)内にこれが貯められることになる。
所定の状態になるまで環境構成流体を供給したら、前記チューブ(3b)の屈曲部分をバーナ(35)にて加熱して前記熱溶融金属棒(3c)を溶融し、この屈曲部分に流して冷やし、当該部分を封止する。
その後、前記チューブ(3b)を切断して、試験には不要な部分を排除する。
このようにして、隔壁(2)内に所望の環境構成流体を封入してから、耐圧室(20)内に試験片(1)をセットする。
なお、チューブ(3b)の先端が試験片(1)の端面より突出したものでも試験機の試験片取付構造により本発明の実施に適用可能である。
また、熱溶融に限らず、チューブ(3b)を圧迫機により圧迫して入口(3a)を閉じるようにしても良い。
This example shows an example in which an opening (3a) leading to the inside of the partition wall (2) is provided in the test piece (1) without providing a mouth portion in the partition wall (2).
A thin inlet (3a) extending from the end surface to the intermediate portion is formed at one end of the test piece (1).
Then, one end of a U-shaped tube (3b) is connected to the inlet (3a). The other end of the tube (3b) is connected to a gas supply path via a pipe joint (110).
The tube (3b) contains a hot-melt metal rod (3c) having a smaller diameter.
In this way, when the environmental constituent fluid is supplied via the pipe joint (110), it is stored in the partition wall (2).
When the environmental constituent fluid is supplied until a predetermined state is obtained, the bent portion of the tube (3b) is heated by the burner (35) to melt the hot-melt metal rod (3c), and is then poured into the bent portion to be cooled. , The part is sealed.
Thereafter, the tube (3b) is cut to eliminate unnecessary portions for the test.
In this way, after the desired environmental constituent fluid is sealed in the partition wall (2), the test piece (1) is set in the pressure-resistant chamber (20).
Even if the tip of the tube (3b) protrudes from the end face of the test piece (1), it can be applied to the implementation of the present invention by the test piece mounting structure of the tester.
In addition, the inlet (3a) may be closed by pressing the tube (3b) with a pressing machine, not limited to heat melting.

圧迫にて変形させられるチューブ(3b)の材質としては、以下のようなものが、高圧に耐えながら、圧迫機による圧迫により容易に変形することができる点で適当である。
SUS304またはSUS316のステンレス鋼管、銅管、真鍮管あるいは、硬質の樹脂管など。
As the material of the tube (3b) that can be deformed by compression, the following materials are suitable in that they can be easily deformed by compression with a compression machine while withstanding high pressure.
SUS304 or SUS316 stainless steel pipe, copper pipe, brass pipe or hard resin pipe.

また、前記チューブ(3b)内に入れる加圧塑性材(3c)としては、以下のようなものが適当である。
インジウム、軟銅、銀または鉛など。
Further, as the pressure plastic material (3c) put in the tube (3b), the following is suitable.
Indium, annealed copper, silver or lead.

加熱に耐える耐熱性を有するチューブ(3b)の材質としては、以下のようなものが適当である。
SUS304またはSUS316ステンレス鋼管、鋼管、銅管、真鍮管、アルミ管など。
The following materials are suitable as the material of the heat-resistant tube (3b) that can withstand heating.
SUS304 or SUS316 stainless steel pipe, steel pipe, copper pipe, brass pipe, aluminum pipe, etc.

また、前記チューブ(3b)内に入れる熱溶融性材(3c)としては、以下のようなものが適当である。
ハンダ合金、ウッドメタル、銀ろうあるいは熱溶融性の樹脂など。
Further, as the heat-meltable material (3c) put in the tube (3b), the following is suitable.
Solder alloy, wood metal, silver solder or heat-meltable resin.

その他の実施例Other examples

以上の実施例の他、平板試験片、曲げ試験片などの試験片においても、同様な構成を採用することで、特殊環境下での試験を行えるようにすることができる。   In addition to the above-described embodiments, test pieces such as flat plate test pieces and bending test pieces can be used in a special environment by adopting the same configuration.

前記環境構成流体としては、技術試験片に対しての腐蝕、脆化、劣化等の作用を及ぼしかねないものとして考慮される。たとえば、気体では、水素、酸素、ハロゲン(フッ素、塩素、臭素、ヨウ素)ガス、酸性気体、塩基性気体、水蒸気、SF6、硫黄化合物、あるいはこれらの混合物等が例示される。また、液体では、酸、アルカリ、塩化物、海水、体液、水、液体と気体との各種の混合物(ミスト)が例示される。
このような環境構成流体に与える温度範囲としては、たとえば−269℃〜1000℃の範囲が、圧力範囲は、300MPa〜10−10Paの範囲が例示される。
もちろん以上の例示に限定されることはない。
The environmental constituent fluid is considered as a material that may exert effects such as corrosion, embrittlement, and deterioration on the technical test piece. Examples of the gas include hydrogen, oxygen, halogen (fluorine, chlorine, bromine, iodine) gas, acidic gas, basic gas, water vapor, SF6, sulfur compound, or a mixture thereof. Examples of the liquid include acids, alkalis, chlorides, seawater, body fluids, water, and various mixtures (mists) of liquid and gas.
As a temperature range given to such an environmental constituent fluid, for example, a range of −269 ° C. to 1000 ° C. and a pressure range of 300 MPa to 10 −10 Pa are exemplified.
Of course, the present invention is not limited to the above examples.

そして、材料試験片に対しては外部より、力学的な試験荷重、たとえば引張力、圧縮力、曲げ、衝撃等が加えられるようにする。   A mechanical test load such as tensile force, compressive force, bending, impact, etc. is applied to the material test piece from the outside.

また、耐圧室(20)内において加圧するための流体としては、水の他、オイル等が使用可能である。   In addition to water, oil or the like can be used as a fluid for pressurization in the pressure resistant chamber (20).

本発明は、特殊環境下での荷重試験を従来ある耐圧室(20)付き試験機を有効に利用して、安全でかつ省資源を達成しながら行えるようにした点で、材料試験の分野で有効に利用されるものである。   In the field of material testing, the present invention enables a load test under a special environment to be effectively performed using a conventional testing machine with a pressure-resistant chamber (20), while achieving safety and resource saving. It is used effectively.

実施例1の全体を示す一部切り欠き概略正面図Partially cutout schematic front view showing the entirety of Example 1 実施例1の要部を示す一部切り欠き拡大正面図Partially cut away enlarged front view showing the main part of Example 1 バンドの要部を拡大正面図Enlarged front view of the main part of the band 実施例2の要部を示す一部切り欠き拡大正面図Partially cut away enlarged front view showing the main part of Example 2 実施例3の概要を示す一部切り欠き概略正面図Partially cutout schematic front view showing an outline of Example 3 実施例4の隔壁を示す一部切り欠き平面図Partially cutaway plan view showing a partition wall of Example 4 実施例4の隔壁を示す正面図The front view which shows the partition of Example 4 実施例5の要部を示す一部切り欠き正面図Partially cutaway front view showing the main part of Example 5 図8のA―A断面図AA sectional view of FIG. 実施例6の環境構成流体の注入を示す縦断正面図Longitudinal front view showing injection of environmental constituent fluid of Example 6 図10のA―A断面図AA sectional view of FIG. 実施例6のガス封じ込めを示す縦断正面図Longitudinal front view showing gas containment of Example 6 実施例6の完成した試験片要部を示す縦断正面図Longitudinal front view showing the main part of the completed test piece of Example 6

符号の説明Explanation of symbols

(10) 基盤
(11) 柱
(12) 定盤
(13) クロスヘッド
(14) プルロッド
(15) アクチュエータ
(16)(17) ロードセル
(18) 固定側治具
(19) Oリング
(1)(411) 試験片
(412) 亀裂起点用溝
(20) 耐圧室
(21) 扉
(22) 孔
(23) ネジ孔
(30) 温度調節機
(31)(44) 配管
(32) 熱交換器
(35) バーナ
(2) 隔壁
(2a) 口部
(3a) 入口
(2c)(2d) 凹凸
(3)(63) 出入り口
(3b) チューブ
(3c) 溶融金属棒(熱溶融性材・加圧塑性材)
(4) クリップ
(6) バンド
(6a) バンド本体
(6b) フランジ
(6c) ボルト
(6d) ナット
(41) 貯留タンク
(42) ポンプ
(43) 配管
(44) バルブ
(51) ホース
(52) パイプ
(62) 予備貯留体
(70) 出口
(80) ガスボンベ
(81) メイン流路
(82)(84)(83)(85) 開閉弁
(86) 余剰ガス排気管
(89) 真空タンク
(90) 圧力センサー
(91) 手元開閉弁
(110) 管継手
(10) Base (11) Pillar (12) Surface plate (13) Cross head (14) Pull rod (15) Actuator (16) (17) Load cell (18) Fixing side jig (19) O-ring (1) (411 ) Test piece (412) Crack initiation groove (20) Pressure chamber (21) Door (22) Hole (23) Screw hole (30) Temperature controller (31) (44) Pipe (32) Heat exchanger (35) Burner (2) Bulkhead (2a) Mouth (3a) Inlet (2c) (2d) Concavity and convexity (3) (63) Entrance / exit (3b) Tube (3c) Molten metal rod (heat-meltable material / pressure plastic material)
(4) Clip (6) Band (6a) Band body (6b) Flange (6c) Bolt (6d) Nut (41) Storage tank (42) Pump (43) Pipe (44) Valve (51) Hose (52) Pipe (62) Preliminary reservoir (70) Outlet (80) Gas cylinder (81) Main flow path (82) (84) (83) (85) On-off valve (86) Excess gas exhaust pipe (89) Vacuum tank (90) Pressure Sensor (91) Hand on-off valve (110) Pipe fitting

Claims (2)

耐圧室内に入れた状態で試験片に対する荷重試験を行うことができる耐圧室付き試験機において、前記試験片周囲の空間と他の耐圧室内の空間とを密封状態で隔絶する可撓性隔壁を設け、当該隔壁内の試験片周囲の空間に特殊環境を構成する流体を注入してあることを特徴とする耐圧室付き試験機 In a testing machine with a pressure chamber capable of performing a load test on a test piece in a pressure chamber, a flexible partition is provided to isolate the space around the test piece and the space in another pressure chamber in a sealed state. A test machine with a pressure-resistant chamber, wherein a fluid constituting a special environment is injected into the space around the test piece in the partition wall 請求項1に記載の耐圧室付き試験機を用いた試験方法において、前記隔壁の外側の空間には高圧流体を注入して、前記試験片周囲の空間における圧力を隔壁を通して試験目的に応じた圧力に加圧することを特徴とする試験方法 The test method using the testing machine with a pressure chamber according to claim 1, wherein a high-pressure fluid is injected into a space outside the partition wall, and the pressure in the space around the test piece is a pressure corresponding to the test purpose through the partition wall. Test method characterized by pressurizing
JP2006060056A 2006-03-06 2006-03-06 Environmental resistance characteristic evaluation tester with pressure chamber and test method using the same Expired - Fee Related JP4775706B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2006060056A JP4775706B2 (en) 2006-03-06 2006-03-06 Environmental resistance characteristic evaluation tester with pressure chamber and test method using the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006060056A JP4775706B2 (en) 2006-03-06 2006-03-06 Environmental resistance characteristic evaluation tester with pressure chamber and test method using the same

Publications (2)

Publication Number Publication Date
JP2007240214A true JP2007240214A (en) 2007-09-20
JP4775706B2 JP4775706B2 (en) 2011-09-21

Family

ID=38585903

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2006060056A Expired - Fee Related JP4775706B2 (en) 2006-03-06 2006-03-06 Environmental resistance characteristic evaluation tester with pressure chamber and test method using the same

Country Status (1)

Country Link
JP (1) JP4775706B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014181600A1 (en) * 2013-05-10 2014-11-13 株式会社島津製作所 Material-odor-assaying device, assaying retainer used therein, and material-odor-testing method used with said material-odor-assaying device
CN105043965A (en) * 2015-07-27 2015-11-11 武汉钢铁(集团)公司 Seawater seal circulating device
CN105466842A (en) * 2015-11-19 2016-04-06 华北水利水电大学 An acid-alkali resistance detecting device for concrete
CN108732010A (en) * 2017-04-24 2018-11-02 中国石油天然气股份有限公司 Simulation and evaluation device and method for fracturing crack

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110646292A (en) * 2019-09-29 2020-01-03 东北大学 Brazil disc splitting test device and method under simulated hydrostatic pressure condition

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58163853U (en) * 1982-04-27 1983-10-31 三菱重工業株式会社 High cycle corrosion fatigue test equipment
JPS6125037A (en) * 1984-07-16 1986-02-03 Toshiba Corp Testing apparatus of fatigue caused by rotary bending and corrosion
JPH06138007A (en) * 1992-10-27 1994-05-20 Ohbayashi Corp Method and device for triaxial compression test
JPH09196844A (en) * 1996-01-18 1997-07-31 Kubota Corp Method and device for testing high temperature oxidation/corrosion
JPH10318895A (en) * 1997-05-21 1998-12-04 Ishikawajima Harima Heavy Ind Co Ltd Clevis device used for stress corrosion test
JPH11258132A (en) * 1998-03-16 1999-09-24 Mitsubishi Heavy Ind Ltd Creep test apparatus
JP2001208675A (en) * 2000-01-26 2001-08-03 Toyota Central Res & Dev Lab Inc Accelerated exposure testing method and apparatus
JP2004077230A (en) * 2002-08-14 2004-03-11 Hitachi Zosen Corp Corrosion fatigue test apparatus
JP2004132752A (en) * 2002-10-09 2004-04-30 National Institute For Materials Science Actual environmental simulation atmospheric corrosion testing device

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58163853U (en) * 1982-04-27 1983-10-31 三菱重工業株式会社 High cycle corrosion fatigue test equipment
JPS6125037A (en) * 1984-07-16 1986-02-03 Toshiba Corp Testing apparatus of fatigue caused by rotary bending and corrosion
JPH06138007A (en) * 1992-10-27 1994-05-20 Ohbayashi Corp Method and device for triaxial compression test
JPH09196844A (en) * 1996-01-18 1997-07-31 Kubota Corp Method and device for testing high temperature oxidation/corrosion
JPH10318895A (en) * 1997-05-21 1998-12-04 Ishikawajima Harima Heavy Ind Co Ltd Clevis device used for stress corrosion test
JPH11258132A (en) * 1998-03-16 1999-09-24 Mitsubishi Heavy Ind Ltd Creep test apparatus
JP2001208675A (en) * 2000-01-26 2001-08-03 Toyota Central Res & Dev Lab Inc Accelerated exposure testing method and apparatus
JP2004077230A (en) * 2002-08-14 2004-03-11 Hitachi Zosen Corp Corrosion fatigue test apparatus
JP2004132752A (en) * 2002-10-09 2004-04-30 National Institute For Materials Science Actual environmental simulation atmospheric corrosion testing device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014181600A1 (en) * 2013-05-10 2014-11-13 株式会社島津製作所 Material-odor-assaying device, assaying retainer used therein, and material-odor-testing method used with said material-odor-assaying device
JPWO2014181600A1 (en) * 2013-05-10 2017-02-23 株式会社島津製作所 Material odor test apparatus, and test fixture and material odor inspection method used therefor
CN105043965A (en) * 2015-07-27 2015-11-11 武汉钢铁(集团)公司 Seawater seal circulating device
CN105466842A (en) * 2015-11-19 2016-04-06 华北水利水电大学 An acid-alkali resistance detecting device for concrete
CN108732010A (en) * 2017-04-24 2018-11-02 中国石油天然气股份有限公司 Simulation and evaluation device and method for fracturing crack

Also Published As

Publication number Publication date
JP4775706B2 (en) 2011-09-21

Similar Documents

Publication Publication Date Title
JP4775706B2 (en) Environmental resistance characteristic evaluation tester with pressure chamber and test method using the same
CN104237002B (en) Salt solution corrosion and loading test device
JP2007199024A (en) Method for delayed fracture test on ferrous material, method for delayed fracture of bolt and fixture for delayed fracture test
CN104142271B (en) A kind of assay device for test material tensile property under high temperature and high pressure gas
CN104568727A (en) High temperature and high pressure corrosion hydrogen permeation testing device and method
KR20110037570A (en) A breakage testing equipment for pressure containers
RU2666161C1 (en) Method of testing tube steels on stress corrosion cracking and device for its implementation
JP4696272B2 (en) Material test piece and manufacturing method thereof
JP6953798B2 (en) Material strength test equipment
de Miguel et al. Hydrogen enhanced fatigue in full scale metallic vessel tests–Results from the MATHRYCE project
CN110410619A (en) A kind of expansion joint protection pipe
Hwang et al. Leak behavior of SCC degraded steam generator tubings of nuclear power plant
RU2447001C1 (en) Device for spaceship tank drive filling
KR101874812B1 (en) portable instrument for measuring moisture of shielded metal arc welding electrode
CN205808893U (en) A kind of new type rubber oil resistant test device
CN109114415A (en) A kind of energy-saving emission-reducing apparatus
CN110425919B (en) Liquid chlorine vaporizer
McMaster et al. Sour service corrosion fatigue testing of flowline welds
CN204116199U (en) Device for evaluating corrosion resistance of metal composite pipe
CN211475214U (en) Pipeline fracture leaking stoppage structure and pipeline fracture plugging equipment
CN107798392A (en) The determination method and apparatus in the working service time limit of pipeline corrosion default
JP2010156582A (en) Test tool, testing device and test method
JP5561712B2 (en) Anticorrosion repair method
JP2016078085A (en) Piping residual stress improving method, antifreeze liquid supply method between ice plugs, and piping residual stress improving device
CN114264551B (en) Explosion test method and explosion test system for pressure vessel

Legal Events

Date Code Title Description
A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20081120

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20090305

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20101007

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20101019

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20101109

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20110201

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20110301

A911 Transfer of reconsideration by examiner before appeal (zenchi)

Free format text: JAPANESE INTERMEDIATE CODE: A911

Effective date: 20110405

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20110614

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20110616

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20140708

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20140708

Year of fee payment: 3

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

S533 Written request for registration of change of name

Free format text: JAPANESE INTERMEDIATE CODE: R313533

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

LAPS Cancellation because of no payment of annual fees