JPS6066133A - Bending fatigue testing device - Google Patents
Bending fatigue testing deviceInfo
- Publication number
- JPS6066133A JPS6066133A JP17371883A JP17371883A JPS6066133A JP S6066133 A JPS6066133 A JP S6066133A JP 17371883 A JP17371883 A JP 17371883A JP 17371883 A JP17371883 A JP 17371883A JP S6066133 A JPS6066133 A JP S6066133A
- Authority
- JP
- Japan
- Prior art keywords
- test piece
- heating furnace
- airtight
- bending fatigue
- 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.)
- Pending
Links
Classifications
-
- 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
- G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
-
- 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
- G01N2203/0014—Type of force applied
- G01N2203/0023—Bending
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)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の属する技術分野〕
この発明は固体材料の試料に曲げ繰り返し荷重を連続的
に与えて、材料の曲げ疲労を試験する曲げ疲労試験装置
に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Technical Field to which the Invention Pertains] The present invention relates to a bending fatigue testing device that tests the bending fatigue of a solid material by continuously applying repeated bending loads to the sample.
従来の曲げ疲労試験装置として、常温あるいは高温下に
おいて丸棒試験片のネジリ試験を行なう回転曲げ疲労試
験機や、平面曲げ試験片に対して繰り返し曲げ応力を加
える平面曲げ試験機が実用化されている（シエンク式、
西原式など）。Conventional bending fatigue test equipment has been put into practical use, such as a rotating bending fatigue tester that performs torsion tests on round bar specimens at room or high temperatures, and a plane bending tester that repeatedly applies bending stress to flat bending test specimens. There is (Sienck style,
Nishihara style, etc.)
しかしながら従来の曲げ疲労試験機においては、試料を
加熱した状態での曲げ疲労試験は可能であるが、高温に
よる試料の劣化が発生する問題があった。また、この高
温劣化を防止するために雰囲気ガスを導入したり、ある
いは試料の使用条件に合致した雰囲気ガスを導入して、
試験機内の試料を雰囲気ガスに暴露、しつつ高温中で曲
げ疲労試験を行なうことは、試験片の設置箇所および加
熱部分が密閉状態になっていないため試験機の構造上困
難とされていた。However, in the conventional bending fatigue testing machine, although it is possible to perform a bending fatigue test with a heated sample, there is a problem in that the sample deteriorates due to high temperatures. In addition, in order to prevent this high-temperature deterioration, an atmospheric gas may be introduced, or an atmospheric gas that matches the usage conditions of the sample may be introduced.
Due to the structure of the test machine, it was difficult to perform a bending fatigue test at high temperatures while exposing the sample inside the test machine to atmospheric gas because the test piece installation location and heating section were not sealed.
本発明は上述した問題点を解決すべく、加熱装置を備え
た密閉容器に試料を設置し、試験片に連結した密閉容器
内外を貫通する揺動軸を介して、密閉容器の外部に設け
た揺動機構により、密閉容器内の試料に曲げ繰り返し運
動を伝達することによって、簡単な構造で高温雰囲気ガ
ス中における長時間にわたっての安定した曲げ疲労試験
を行なうことを可能とした装置を提供することを目的と
する。In order to solve the above-mentioned problems, the present invention places a sample in a closed container equipped with a heating device, and connects the sample to the outside of the closed container via a swinging shaft that passes through the inside and outside of the closed container. To provide a device capable of conducting a stable bending fatigue test over a long period of time in a high-temperature atmospheric gas with a simple structure by transmitting repeated bending motion to a sample in a closed container using a swinging mechanism. With the goal.
以下実施例に従って図面を参照しながら本発明を説明す
る〇
第１図は本発明の一実施例を説明するための揺動伝達機
構部１００と、気密揺動軸受機構部２００と、雰囲気ガ
スの流出入口を設けた加熱炉３００とを具備した高温雰
囲気ガス曲げ疲労試験装置の模式説明図である。The present invention will be described below with reference to the drawings in accordance with embodiments. FIG. 1 shows a swing transmission mechanism section 100, an airtight swing bearing mechanism section 200, and an atmospheric gas 1 is a schematic explanatory diagram of a high-temperature atmosphere gas bending fatigue test apparatus equipped with a heating furnace 300 provided with an inlet and an inlet.
揺動可能なベローズ７の両端に、下部端に試験片１を取
付けるための試験片上部取付台２を備えた揺動軸３を挿
入するための孔が設けられた上部シール板６と下部シー
ル板２０とが気密を保持して連結形成されている。下部
シール板２０は試験片下部固定取付台９を備えた取付枠
１０を加熱炉側の面に配置された支点軸受フランジ１１
に取付けられており、この支点軸受フランジ１１には軸
受押え板２１で固定された支点軸受８が設けられ、前記
支点軸受８に揺動軸３を挿入しベローズ部外部に設けら
れた駆動機４との関係寸法を設定するための止め金具２
２を用いて揺動軸３の位置決めをする。上記支点軸受フ
ランジ１１と下部シール板２０とは気密保持用のＯリン
グ２３を介して固着される。上記ベローズ部に設けられ
た上部シール板６と揺動軸３との間にもベローズ部の内
外部の気密を保持するための気密シール５が挿入され、
押え板３５により上部シール板６と揺動軸３を固定する
。ベローズ部の外部に揺動軸３の揺動をガイドするため
の滑り案内板２４を取付け、揺動軸３に設けられたクラ
ンク軸２５をクランク運動させ駆動機４のクランク腕２
６に連結することにより揺動伝達機構部が形成される。An upper seal plate 6 and a lower seal are provided at both ends of a swingable bellows 7 for inserting a swing shaft 3 having a test piece upper mounting base 2 for mounting a test piece 1 at the lower end. The plate 20 is connected to the plate 20 in an airtight manner. The lower seal plate 20 connects a mounting frame 10 with a test piece lower fixing mount 9 to a fulcrum bearing flange 11 arranged on the surface facing the heating furnace.
The fulcrum bearing flange 11 is provided with a fulcrum bearing 8 fixed by a bearing holding plate 21, and a swing shaft 3 is inserted into the fulcrum bearing 8, and a driving machine 4 is installed outside the bellows portion. Fastener 2 for setting the relationship dimensions with
2 to position the swing shaft 3. The fulcrum bearing flange 11 and the lower seal plate 20 are fixed to each other via an O-ring 23 for airtightness. An airtight seal 5 is also inserted between the upper seal plate 6 provided on the bellows part and the swing shaft 3 to keep the inside and outside of the bellows part airtight.
The upper seal plate 6 and the swing shaft 3 are fixed by the holding plate 35. A sliding guide plate 24 for guiding the swinging of the swinging shaft 3 is attached to the outside of the bellows portion, and a crank shaft 25 provided on the swinging shaft 3 is moved by cranking the crank arm 2 of the drive machine 4.
6, a swing transmission mechanism section is formed.
一方、支点軸受フランジ１１の下方には、試験片挿入孔
を備えた加熱炉フランジ１２と、試験片１を加熱するた
めの加熱装置２７が備えられている密閉構造の加熱炉１
３とが気密を保持して連結形成され、加熱炉１３には内
部の試験片を雰囲気ガス中に暴露するためのガス流入口
１５とガス流出口１６を備え、前記加熱炉フランジ１２
と上記支点軸受フランジ１１とは加熱炉気密シール１４
を介して連結され、前記揺動伝達気密軸受部と加熱炉部
が一体に構成されている。On the other hand, below the fulcrum bearing flange 11, a heating furnace 1 of a closed structure is provided with a heating furnace flange 12 having a test piece insertion hole and a heating device 27 for heating the test piece 1.
The heating furnace 13 is provided with a gas inlet 15 and a gas outlet 16 for exposing the test piece inside to atmospheric gas, and the heating furnace flange 12 and
and the above-mentioned fulcrum bearing flange 11 are heating furnace airtight seals 14
The swing transmission airtight bearing section and the heating furnace section are integrally connected to each other.
試験を行なう場合には、第１図において、揺動伝達気密
軸受部と加熱炉部とを支点軸受フランジ１１と加熱炉フ
ランジ１２の連結を外すことによって分離し、揺動伝達
気密軸受部の下部に備えられている試験片取付部を加熱
炉の外部へ取り出し、試験片１を試験片上部取付台２と
試験片下部固定取付台９の間に取付け、再び支点軸受フ
ランジ１１と加熱炉フランジ１２とを加熱炉気密シール
１４を介して連結することによって加熱炉内及びベロー
ズ内は外部と気密を保持される。When conducting a test, as shown in FIG. 1, the swing transmission airtight bearing section and the heating furnace section are separated by disconnecting the fulcrum bearing flange 11 and the heating furnace flange 12, and the lower part of the swing transmission airtight bearing section is separated. The test piece mounting section provided in By connecting these through the heating furnace airtight seal 14, the inside of the heating furnace and the inside of the bellows are kept airtight from the outside.
ガス流入口１５より所定の雰囲気ガスを加熱炉内へ流入
させ、ガス流出口１°６より余剰ガスを流出させつつ、
加熱炉１３を所定の温度まで加熱し、加熱炉内の試験片
を高温雰囲気ガス中に暴露する。A predetermined atmospheric gas is allowed to flow into the heating furnace from the gas inlet 15, and surplus gas is allowed to flow out from the gas outlet 1°6.
The heating furnace 13 is heated to a predetermined temperature, and the test piece inside the heating furnace is exposed to high temperature atmospheric gas.
加熱炉にはさらに、熱電対用リード線取出口１７と試験
片破断検出信号を取出すための電線取出口１８と冷却ジ
ャケット１９とが設けられている。The heating furnace is further provided with a thermocouple lead wire outlet 17, an electric wire outlet 18 for extracting a test piece fracture detection signal, and a cooling jacket 19.
クランク運動を行なう駆動機４を動作させることによっ
て、クランク腕２６とクランク軸２５を介して揺動軸３
は滑り案内板２４にガイドされつつ支点軸受８を支点と
した一定の往復運動を行ない、試験片１は試験片下部固
定取付台９を支点として揺動軸３の振巾に応じた繰り返
し往復運動を行なうため、試験片の曲げ繰り返し試験が
可能となる。また、揺動軸３の揺動時に発生する軸芯の
ズレはベローズ７が吸収するので、揺動軸３の軸シール
が可能となっている。かつ、試験片においても揺動時に
おいて上下伸縮作用による引張応力が掛かるため、試販
片１は試験片上部取付台２とは完全固定ではなく、図示
のように上下滑りが可能な状態で連結して引張応力が発
生するのを防止するとともに、加熱時に発生する試験片
の熱膨張による伸縮も逃げられる構造になっている。By operating the drive machine 4 that performs crank motion, the swing shaft 3 is moved through the crank arm 26 and the crank shaft 25.
The test piece 1 performs a constant reciprocating movement using the fulcrum bearing 8 as a fulcrum while being guided by the sliding guide plate 24, and the test piece 1 makes a repeated reciprocating movement according to the swing width of the swing shaft 3 using the test piece lower fixed mount 9 as a fulcrum. This makes it possible to repeatedly test the test piece by bending it. Moreover, since the bellows 7 absorbs the misalignment of the shaft center that occurs when the swing shaft 3 swings, the shaft seal of the swing shaft 3 is possible. In addition, since tensile stress is applied to the test piece due to vertical expansion and contraction during rocking, the test piece 1 is not completely fixed to the upper test piece mount 2, but is connected in a manner that allows it to slide up and down as shown in the figure. The structure is designed to prevent tensile stress from occurring during heating, and also to escape expansion and contraction due to thermal expansion of the test piece during heating.
第２図は本発明の他の実施例を示すもので、第１図と同
一の部分には同一の符号を付しである。FIG. 2 shows another embodiment of the present invention, in which the same parts as in FIG. 1 are given the same reference numerals.
第１図のクランク運動駆動機４はここでは往復運動駆動
機４ａとされている。The crank drive 4 of FIG. 1 is here designated as a reciprocating drive 4a.
第２図の実施例においては、加熱炉気密シール１４を冷
却するための冷却管１９ａを備えた加熱炉フランジ１２
と気密を保持して連結している中間容器２８と、この中
間容器２８の下部端面に気密を保持して連結されている
下部フランジ２９と、前記中間容器２８の側面に熱電対
用リード線取出口１７と試験片破断検出信号を取り出す
ための電線取出口１８とを備え、前記熱電対用リード線
取出口１７および電線取出口１８を冷却するための冷却
管１９ｂを備えた中間容器部が新たに設けられている。In the embodiment shown in FIG.
an intermediate container 28 that is airtightly connected to the intermediate container 28; a lower flange 29 that is airtightly connected to the lower end surface of the intermediate container 28; and a thermocouple lead wire attachment on the side surface of the intermediate container 28. A new intermediate container section includes an outlet 17 and a wire outlet 18 for taking out a test piece breakage detection signal, and a cooling pipe 19b for cooling the thermocouple lead wire outlet 17 and the wire outlet 18. It is set in.
また前記揺動伝達気密軸受部が挿入可能な孔を有する上
部フランジ板３ｏと気密を保持して連結している炉筒３
１と、この炉筒３１の側面に設けられた雰囲気ガス導入
のためのガス流入口１５およびガス流出口１６と、中間
シール材３２を冷却するための冷却管１９ｃとで下部容
器部が構成されている。Further, the furnace cylinder 3 is airtightly connected to an upper flange plate 3o having a hole into which the swing transmission airtight bearing part can be inserted.
1, a gas inlet 15 and a gas outlet 16 provided on the side surface of the furnace cylinder 31 for introducing atmospheric gas, and a cooling pipe 19c for cooling the intermediate sealing material 32, forming a lower container part. ing.
支点軸受フランジ１１と中間容器部、下部容器部とはそ
れぞれ加熱炉気密シール１４、中間シール３２を介して
気密を保持し連結されており、中間容器部と下部容器部
とは■バンドカップリック′３３によって着脱容易に固
定され、揺動伝達気密軸受部と中間容器部とを下部容器
部より短時間に取外し、試験片１の交換作業を容易にす
る構造になっている。The fulcrum bearing flange 11, the intermediate container portion, and the lower container portion are connected to each other in an airtight manner via the heating furnace airtight seal 14 and the intermediate seal 32, respectively, and the intermediate container portion and the lower container portion are connected to each other through a band cup. 33 for easy attachment and detachment, and the structure is such that the swing transmission airtight bearing part and the intermediate container part can be removed from the lower container part in a short time, making it easy to replace the test piece 1.
第２図において、試験片１を揺動軸３の下部に取付け、
加熱炉１３内に挿入し、揺動軸３の上部を往復運動駆動
機４ａに連結し、駆動機４ａの揺動によって試験片１の
繰り返し曲げ試験を行なう。In FIG. 2, the test piece 1 is attached to the lower part of the swing shaft 3,
The test piece 1 is inserted into the heating furnace 13, the upper part of the swing shaft 3 is connected to a reciprocating motion drive machine 4a, and the test piece 1 is subjected to a repeated bending test by swinging the drive machine 4a.
この過程において、熱電対用リード線取出口１７に接続
された熱電対によって加熱炉１３の温度を制御すると同
時に、電線取出口１８に接続された試験片破断検出器３
４によって自動的に試験片の破断時点を検出する。In this process, the temperature of the heating furnace 13 is controlled by the thermocouple connected to the thermocouple lead wire outlet 17, and at the same time, the test piece breakage detector 3 connected to the wire outlet 18
4 automatically detects the point at which the test piece breaks.
以上のように、本発明の曲げ疲労試験装置は、揺動可能
なベローズを備え気密を保っ揺動伝達気密軸受部と、熱
電対および試験片破断検出器、加熱装置、雰囲気ガスの
流入出口、冷却管を具備した加熱炉から構成され次の効
果が得られる。As described above, the bending fatigue test apparatus of the present invention includes a swingable bellows that maintains airtightness and a swing transmission airtight bearing, a thermocouple and a test piece breakage detector, a heating device, an atmospheric gas inlet and an outlet, It consists of a heating furnace equipped with cooling pipes, and the following effects can be obtained.
１）揺動伝達機構部は高温中あるいは雰囲気ガス中に暴
露されないので、機構部の材料２機構構成上で耐熱性、
耐雰囲気性の配慮を必要とせず、製作が容易で価格的に
安価であり、保守点検が容易である。1) Since the swing transmission mechanism is not exposed to high temperatures or atmospheric gas, the material of the mechanism must be heat resistant,
It does not require consideration of atmospheric resistance, is easy to manufacture, inexpensive, and easy to maintain and inspect.
２）揺動可能なベローズを備え気密を保り揺動伝達気密
軸受部と密閉された加熱炉の構成によって、高温雰囲気
ガス中の試験片の曲げ繰り返し疲労試験が容易に行なえ
る。2) The configuration of the heating furnace, which is equipped with a swingable bellows, maintains airtightness, and is sealed with a swing-transmitting airtight bearing part, makes it possible to easily perform a repeated bending fatigue test on a test piece in a high-temperature atmospheric gas.
３）揺動伝達気密軸受部を加熱炉より取外し分離が可能
であるため、加熱炉を加熱中でも試験片の取付け、取外
しが可能となり作業性は向上する０また、降温のために
加熱炉を冷却する必要がないので熱源としての省エネル
ギーが可能であり経済的に有利である。さらに加熱炉と
は無関係に大気中での曲げ繰り返し試験の目視観察が可
能である。3) Since the rocking transmission airtight bearing part can be removed and separated from the heating furnace, it is possible to install and remove the test piece even while the heating furnace is heating, improving work efficiency.0 Also, the heating furnace can be cooled to lower the temperature. Since there is no need to do so, it is possible to save energy as a heat source, which is economically advantageous. Furthermore, visual observation of repeated bending tests in the atmosphere is possible regardless of the heating furnace.
４）冷却ジャケットを設けたことにより、連結部分の気
密シール材、支点軸受、電線取出口の気密シール材、電
気絶縁材の選定も有利であり安価である。4) By providing the cooling jacket, it is advantageous and inexpensive to select the airtight sealing material for the connecting portion, the fulcrum bearing, the airtight sealing material for the wire outlet, and the electrical insulating material.
５）揺動可能なベローズの構造を採用したことから、簡
単な揺動気密シール構造が可能となり、また、ベローズ
本来の形状からも放熱性が良く、加熱炉から伝達された
熱を大気へ放熱するため気密シール材の選定も有利であ
り安価である。5) By adopting a swingable bellows structure, a simple swinging airtight seal structure is possible, and the original shape of the bellows also has good heat dissipation, allowing the heat transferred from the heating furnace to be dissipated to the atmosphere. Therefore, it is advantageous and inexpensive to select an airtight sealing material.
６）密閉構造の加熱炉にガス流出入口を設けていること
から高圧の雰囲気ガス中、あるいは別に排気系を設けて
真空圧下での曲げ疲労試験が可能であり、密閉容器であ
るためにガス消費量が少なく経済的に有利である。6) Since the heating furnace has a closed structure and has a gas inlet and outlet, it is possible to perform bending fatigue tests in high-pressure atmospheric gas, or under vacuum pressure with a separate exhaust system, and because it is a closed container, gas consumption is reduced. It is economically advantageous because the quantity is small.
第１図は本発明の一実施例の模式説明図、第２図は本発
明の異なる実施例の模式説明図である。
１・・・試験片、２・・・試験片上部取付台、３・・・
揺動軸、４，４ａ・・・駆動機、５・・・気密シール、
６・・・上部シール板、７・・ベローズ、８・・・支点
軸受、９・・・試験片下部固定取付台、１０・・・取付
枠、１１・・・支点軸受フランジ、１２・・・加熱炉フ
ランジ、１３・・・加熱炉、１４・・加熱炉気密シール
、１５・・・ガス流入口、１６・・・ガス流出口、１７
・・・熱電対用リード線取出口、１８・・・電線取出口
、１９・・・冷却ジャケット、１９ａ、１９ｂ、１９ｃ
・・冷却管、２ Ｂ −＝中間容器、２９・・・下部フ
ランジ、３０・・・上部フランジ板、３１・・・炉筒、
３２・・・中間シール、３３・・・Ｖバンドカップリン
グ、３４・・・試験片破断検出器、ヤ２図FIG. 1 is a schematic explanatory diagram of one embodiment of the present invention, and FIG. 2 is a schematic explanatory diagram of a different embodiment of the present invention. 1...Test piece, 2...Test piece upper mounting base, 3...
Swing shaft, 4, 4a...driver, 5...airtight seal,
6... Upper seal plate, 7... Bellows, 8... Fulcrum bearing, 9... Test piece lower fixing mount, 10... Mounting frame, 11... Fulcrum bearing flange, 12... Heating furnace flange, 13... Heating furnace, 14... Heating furnace airtight seal, 15... Gas inlet, 16... Gas outlet, 17
... Lead wire outlet for thermocouple, 18... Electric wire outlet, 19... Cooling jacket, 19a, 19b, 19c
... Cooling pipe, 2 B - = intermediate container, 29 ... Lower flange, 30 ... Upper flange plate, 31 ... Furnace tube,
32... Intermediate seal, 33... V-band coupling, 34... Test piece breakage detector, Figure 2
Claims (1)
有し試験片を揺動する揺動軸と前記揺動軸の上部を揺動
させる駆動機とが具備された揺動伝達機構部；揺動軸を
挿入するための孔を有し、前記孔と揺動軸との間に気密
シールが設けられた上部シール板と、前記上部シール板
と気密を保たれて連結しかつ揺動可能なベローズと、前
記ベローズの上部シール板と反対側に位置する端部に気
密を保たれて連結し、内部には上記揺動伝達機構部から
伝達された揺動を試験片に伝えるための揺動軸の支点軸
受を持ちさらに試験片の下部を固定するための試験片下
部固定取付台に連結された取付枠を備えた支点軸受フラ
ンジとが具備された気密揺動軸受機構部；試験片を挿入
するための孔を有した加熱炉フランジを備え前記加熱炉
フランジと気密を保たれて連結し、気密性を有した構造
の加熱炉；とを具備し、前記揺動伝達機構部を気密揺動
軸受機構部に挿入設置し、気密揺動軸受機構部に設けら
れた支点軸受フランジと加熱炉に設けられた加熱炉フラ
ンジとを加熱炉気密シール材を介して連結し、加熱炉内
に挿入さイ′した試験片上部取付台と試験片下部固定取
付台の間の試験片を揺動させることにより、試験片の曲
げ繰り返し試験を可能としたことを特徴とする曲げ疲労
試験装置。 ２、特許請求の範囲第１項記載の曲げ疲労試験装置にお
いて、加熱炉にガスを封じ込めるためのガス流入口と、
ガスを排出するためのガス流出口とを備え、高温雰囲気
ガス中における試験片の曲げ繰り返し試験を可能とした
ことを特徴とする曲げ疲労試験装置。 ３）特許請求の範囲第１項記載の曲げ疲労試験装置にお
いて、加熱炉に熱電対用リード線取出口と試験片破断検
出信号を外部に取り出すための電線取出口が具備されて
いることを特徴とする曲げ疲労試験装置０ ４）特許請求の範囲第１項記載の曲げ疲労試験装置にお
いて、支点軸受・気密シール・電線取出口を高温から保
獲する目的で冷却ジャケットが具備されていることを特
徴とする曲げ疲労試験装置。[Scope of Claims] 1) A swing shaft that has a test piece upper mounting base at the lower end for mounting the test piece and swings the test piece, and a drive machine that swings the upper part of the swing shaft. a swing transmission mechanism; an upper seal plate having a hole for inserting a swing shaft and an airtight seal provided between the hole and the swing shaft; and an upper seal plate that is airtight with the upper seal plate; A bellows is connected to the bellows and is swingable, and the bellows is airtightly connected to the end located on the opposite side of the upper seal plate, and the inside thereof receives the swinging motion transmitted from the swinging transmission mechanism. An airtight rocking device having a fulcrum bearing for a rocking axis for transmitting information to the test piece, and a fulcrum bearing flange with a mounting frame connected to a test piece lower fixing mount for fixing the lower part of the test piece. a bearing mechanism section; a heating furnace having an airtight structure, the heating furnace having a heating furnace flange having a hole for inserting a test piece and connected to the heating furnace flange in an airtight manner; The dynamic transmission mechanism is inserted into the airtight rocking bearing mechanism, and the fulcrum bearing flange provided in the airtight rocking bearing mechanism is connected to the heating furnace flange provided in the heating furnace via the heating furnace airtight sealing material. The test piece is characterized by being able to perform repeated bending tests on the test piece by swinging the test piece between the upper test piece mount and the lower test piece fixed mount inserted into the heating furnace. Bending fatigue test equipment. 2. In the bending fatigue testing apparatus according to claim 1, a gas inlet for sealing gas in the heating furnace;
A bending fatigue testing device characterized in that it is equipped with a gas outlet for discharging gas, and is capable of repeated bending tests on test pieces in high-temperature atmospheric gas. 3) The bending fatigue testing apparatus according to claim 1, characterized in that the heating furnace is equipped with a thermocouple lead wire outlet and an electric wire outlet for extracting the test piece fracture detection signal to the outside. 4) The bending fatigue test device according to claim 1 is provided with a cooling jacket for the purpose of protecting the fulcrum bearing, airtight seal, and wire outlet from high temperatures. Characteristic bending fatigue test equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17371883A JPS6066133A (en) | 1983-09-20 | 1983-09-20 | Bending fatigue testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17371883A JPS6066133A (en) | 1983-09-20 | 1983-09-20 | Bending fatigue testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6066133A true JPS6066133A (en) | 1985-04-16 |
Family
ID=15965851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17371883A Pending JPS6066133A (en) | 1983-09-20 | 1983-09-20 | Bending fatigue testing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6066133A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102141492A (en) * | 2011-02-18 | 2011-08-03 | 中山榄菊日化实业有限公司 | Playing card bending testing machine and testing method |
| JP2011169852A (en) * | 2010-02-22 | 2011-09-01 | Nakamura Tome Precision Ind Co Ltd | Device and method for testing wear of artificial joint |
| JP2012047510A (en) * | 2010-08-25 | 2012-03-08 | Nakashima Medical Co Ltd | Sterile environment wear test apparatus |
| JP2012078106A (en) * | 2010-09-30 | 2012-04-19 | Yamamoto Kinzoku Seisakusho:Kk | Corrosion fatigue testing instrument |
| CN103278406A (en) * | 2013-06-14 | 2013-09-04 | 哈尔滨工业大学 | Testing device and testing method for evaluating rutting resistance of asphalt mixture |
| JP2018049025A (en) * | 2015-08-28 | 2018-03-29 | ザ・ボーイング・カンパニーＴｈｅ Ｂｏｅｉｎｇ Ｃｏｍｐａｎｙ | Periodic bending salt water spray chamber and method |
-
1983
- 1983-09-20 JP JP17371883A patent/JPS6066133A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011169852A (en) * | 2010-02-22 | 2011-09-01 | Nakamura Tome Precision Ind Co Ltd | Device and method for testing wear of artificial joint |
| JP2012047510A (en) * | 2010-08-25 | 2012-03-08 | Nakashima Medical Co Ltd | Sterile environment wear test apparatus |
| JP2012078106A (en) * | 2010-09-30 | 2012-04-19 | Yamamoto Kinzoku Seisakusho:Kk | Corrosion fatigue testing instrument |
| CN102141492A (en) * | 2011-02-18 | 2011-08-03 | 中山榄菊日化实业有限公司 | Playing card bending testing machine and testing method |
| CN103278406A (en) * | 2013-06-14 | 2013-09-04 | 哈尔滨工业大学 | Testing device and testing method for evaluating rutting resistance of asphalt mixture |
| JP2018049025A (en) * | 2015-08-28 | 2018-03-29 | ザ・ボーイング・カンパニーＴｈｅ Ｂｏｅｉｎｇ Ｃｏｍｐａｎｙ | Periodic bending salt water spray chamber and method |
| JP2019144274A (en) * | 2015-08-28 | 2019-08-29 | ザ・ボーイング・カンパニーＴｈｅ Ｂｏｅｉｎｇ Ｃｏｍｐａｎｙ | Cyclic flexing salt-spray chamber and methods |
| US10436703B2 (en) | 2015-08-28 | 2019-10-08 | The Boeing Company | Cyclic flexing salt-spray chamber and methods |
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