JP2571434Y2 - Electric furnace for material testing machine - Google Patents
Electric furnace for material testing machineInfo
- Publication number
- JP2571434Y2 JP2571434Y2 JP1992013612U JP1361292U JP2571434Y2 JP 2571434 Y2 JP2571434 Y2 JP 2571434Y2 JP 1992013612 U JP1992013612 U JP 1992013612U JP 1361292 U JP1361292 U JP 1361292U JP 2571434 Y2 JP2571434 Y2 JP 2571434Y2
- Authority
- JP
- Japan
- Prior art keywords
- electric furnace
- test piece
- testing machine
- main body
- material testing
- 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 - Fee Related
Links
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本考案は、アモルファス合金、形
状記憶合金等の線状又は薄板帯状の材料試験片について
加熱引張り試験を行う際に材料を加熱するための材料試
験機用電気炉に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric furnace for a material testing machine for heating a material such as an amorphous alloy, a shape memory alloy or the like in the form of a linear or thin strip in a heat tensile test.
【０００２】[0002]
【従来の技術】近年、新素材が広範な用途に使用され、
高温の環境下にさらされる新素材については、予め材料
試験を行い高温強度等の機械的性質を把握する必要があ
る。また、これらの新素材は、精密部品の材料として使
用される場合も多く、その場合には、線状や極薄の帯状
の試験片として加熱引張り試験を実施することがある。2. Description of the Related Art In recent years, new materials have been used for a wide range of applications,
For new materials exposed to a high temperature environment, it is necessary to conduct a material test in advance to grasp mechanical properties such as high temperature strength. In addition, these new materials are often used as materials for precision parts, and in such a case, a heating or tensile test may be performed as a linear or ultrathin strip-shaped test piece.
【０００３】従来、この種の引張試験機にあっては、試
験片を加熱する手段としては、試験片全体を収容できる
ように高周波誘導加熱炉を二つ割りにしたものや、レー
ザが利用されている。Conventionally, in a tensile tester of this type, as a means for heating a test piece, a high-frequency induction heating furnace divided into two so as to accommodate the entire test piece or a laser is used. .
【０００４】[0004]
【考案が解決しようとする課題】しかしながら、高周波
誘導加熱炉では、試験片の大きさに較べて炉が大きいこ
とから、試験機における占有スペースが大きくなり、ま
た炉自体の価格が高価であるという欠点がある。一方、
レーザを利用して試験片を加熱する場合には、局所的に
高温の部分が生じ全体の温度分布が一様になり難いの
で、得られる試験結果の精度に問題がある。そこで、本
考案は、上記従来技術の有する問題点を解消し、加熱炉
の大きさを小型化し、能率良くしかも精度よく試験片の
加熱引張り試験を実施できるようにした材料試験機用電
気炉を提供することを目的とする。However, in the high-frequency induction heating furnace, since the furnace is large compared to the size of the test piece, the space occupied by the test machine becomes large, and the price of the furnace itself is expensive. There are drawbacks. on the other hand,
When a test piece is heated by using a laser, a high-temperature portion is locally generated, and it is difficult to make the entire temperature distribution uniform. Therefore, there is a problem in the accuracy of the obtained test result. Accordingly, the present invention solves the above-mentioned problems of the prior art, reduces the size of the heating furnace, and provides an electric furnace for a material testing machine that is capable of efficiently and accurately performing a heating tensile test on a test piece. The purpose is to provide.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するため
に、本考案は、伝熱性の高い金属材料を材質に直方体ブ
ロック形状の電気炉本体を形成し、この電気炉本体にそ
の長さ方向に電熱ヒータを挿設するとともに、線状また
は薄板帯状の試験片の被加熱部分を受容するスリットを
前記電気炉本体の先端部から長さ方向に形成したことを
特徴とするものである。In order to achieve the above object, the present invention is to form an electric furnace main body in the shape of a rectangular parallelepiped block made of a metal material having high heat conductivity, and to attach the electric furnace main body in the longitudinal direction thereof. And a slit for receiving a heated portion of the linear or thin strip-shaped test piece is formed in the longitudinal direction from the front end of the electric furnace main body.
【０００６】[0006]
【作用】本考案によれば、電気炉本体に切り込んだスリ
ットに被加熱部分が位置するように試験片を差し入れる
と、伝熱ヒータによって加熱された電気炉本体の熱を受
けた試験片が加熱されるようにしているので、当該試験
片の被加熱部分全体が一様にかつ均一に加熱される。According to the present invention, when the test piece is inserted into the slit cut into the electric furnace body so that the heated portion is located, the test piece that has received the heat of the electric furnace body heated by the heat transfer heater is formed. Since the test piece is heated, the entire heated portion of the test piece is uniformly and uniformly heated.
【０００７】[0007]
【実施例】以下、本考案による材料試験機用電気炉の一
実施例について添付の図面を参照して説明する。図１に
おいて、符号１は線状または極薄板帯状の試験片につい
て加熱引張り試験を実施するための材料試験機の全体を
示す。この材料試験機１は、上下一対のグリップ２、３
で挟持される試験片Ｓに引張り荷重を与えるようになっ
ている。この場合、下部グリップ２はシリンダ４に連結
され、上部グリップ３はロードセル５に連結されてい
る。従って、シリンダ４の引張り作用のもとでそのとき
の荷重がロードセル５によって検出され、このロードセ
ル５にて変換された荷重に比例する電気信号は図示しな
い計測演算装置に出力される。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the electric furnace for a material testing machine according to the present invention will be described below with reference to the accompanying drawings. In FIG. 1, reference numeral 1 indicates the entirety of a material testing machine for performing a heating tensile test on a linear or ultrathin strip test piece. The material testing machine 1 includes a pair of upper and lower grips 2, 3
A tensile load is applied to the test piece S to be clamped. In this case, the lower grip 2 is connected to the cylinder 4 and the upper grip 3 is connected to the load cell 5. Accordingly, the load at that time is detected by the load cell 5 under the pulling action of the cylinder 4, and an electric signal proportional to the load converted by the load cell 5 is output to a measuring and calculating device (not shown).
【０００８】次に、符号６は本実施例による電気炉であ
って、この実施例では、材料試験機１の内部において水
平方向（矢印Ａ、Ｂ方向）、鉛直方向（矢印Ｃ、Ｄ方
向）に移動自在なように組み込まれている。すなわち、
電気炉６の下面にはスライダ７が固着され、このスライ
ダ７は凸条８を介してスライド台９に摺動自在に係合し
ている。従って、スライド台９に案内されて電気炉６
は、下部グリップ２、上部グリップ３の間で水平な矢印
Ａ、Ｂ方向に進退自在なように構成されている。また、
上記スライド台９は、昇降ガイド１０にそって鉛直な矢
印Ｃ、Ｄ方向に移動可能なように取り付けられており、
これによって、電気炉６の高さを調整できるようになっ
ている。Reference numeral 6 denotes an electric furnace according to this embodiment. In this embodiment, a horizontal direction (directions of arrows A and B) and a vertical direction (directions of arrows C and D) are inside the material testing machine 1. It is incorporated so that it can move freely. That is,
A slider 7 is fixed to the lower surface of the electric furnace 6, and the slider 7 is slidably engaged with a slide base 9 via a ridge 8. Therefore, the electric furnace 6 is guided by the slide table 9.
Is configured to be able to advance and retreat in horizontal arrows A and B between the lower grip 2 and the upper grip 3. Also,
The slide table 9 is attached so as to be movable in vertical arrows C and D along an elevating guide 10.
Thereby, the height of the electric furnace 6 can be adjusted.
【０００９】次に、図２および図３に上記電気炉６の構
成の詳細を示す。この電気炉６は、その本体１２が銅等
の伝熱性の良好な金属を材料として図に示すような直方
体のブロック形状で少なくともその高さｈが試験片中央
部の被加熱部分をカバーする寸法に製作され、この本体
１２の内部には、複数本の電熱ヒータ１３が挿設されて
いる。そして、本体１２の先端側からは長さ方向にそっ
て試験片中央部の被加熱部分を受容するスリット１４が
深く形成されている。このスリット１４の幅ｄは、引張
り試験に供される試験片Ｓの太さまたは厚さよりも若干
大きく設定されており、試験片Ｓの被加熱部分がこのス
リット１４に容易に入り込むるようになっている。な
お、図２において、符号１５は、当該電気炉６の温度を
測定するために所要数だけ埋め込まれた熱電対を示して
いる。Next, FIG. 2 and FIG. 3 show details of the configuration of the electric furnace 6. The electric furnace 6 has a main body 12 made of a metal having good heat conductivity such as copper as a material and a rectangular parallelepiped block shape as shown in the figure, and at least a height h of which covers a heated portion at the center of the test piece. The main body 12 has a plurality of electric heaters 13 inserted therein. A slit 14 for receiving a heated portion at the center of the test piece is formed deep from the tip side of the main body 12 along the length direction. The width d of the slit 14 is set to be slightly larger than the thickness or thickness of the test piece S to be subjected to the tensile test, and the heated portion of the test piece S can easily enter the slit 14. ing. In FIG. 2, reference numeral 15 indicates a thermocouple embedded in a required number for measuring the temperature of the electric furnace 6.
【００１０】しかして、図１において、例えば、厚さの
薄い帯状のアモルファス合金の試験片Ｓについて実施す
る加熱引張り試験との関連において、電気炉６の作用に
ついて説明する。まず、下部グリップ２と上部グリップ
３とで試験片Ｓの両端を挟持して引張り試験を実施す
る。この時は電気炉６は図に示す後退位置にあり、試験
片Ｓを加熱せずに常温下での引張り強度に係るデータを
採取する。The operation of the electric furnace 6 will be described with reference to FIG. 1, for example, in relation to a heating tensile test performed on a strip-shaped amorphous alloy test piece S having a small thickness. First, the lower grip 2 and the upper grip 3 sandwich both ends of the test piece S and perform a tensile test. At this time, the electric furnace 6 is at the retracted position shown in the figure, and data on the tensile strength at room temperature is collected without heating the test piece S.
【００１１】次に、別の試験片Ｓについて加熱引張り試
験を実施する場合には、電気炉６をスライド台９上にお
いて矢印Ｂ方向に移動させ、下部グリップ２と上部グリ
ップ３との間に挟持されている試験片Ｓが電気炉６のス
リット１４に挿入される位置で位置決めする。なお、電
気炉６の電熱ヒータ１３には予め通電してこの時の試験
条件の温度に設定しておく。試験片Ｓは、その被加熱部
分が電気炉６によって加熱される。この場合、電気炉６
を熱伝導性の高い材質でブロック状に成形し、深く切り
込んだスリット１４に当該試験片Ｓを受容して加熱する
ようにしているので、当該試験片Ｓの被加熱部分全体が
一様にかつ均一に加熱される。しかも、電気炉６の大き
さをコンパクトにまとめることができ、試験機１に占め
る占有スペースを小さくすることができる。Next, when performing a heating tensile test on another test piece S, the electric furnace 6 is moved in the direction of arrow B on the slide table 9 so as to be clamped between the lower grip 2 and the upper grip 3. The test piece S is positioned at a position where it is inserted into the slit 14 of the electric furnace 6. It should be noted that the electric heater 13 of the electric furnace 6 is energized in advance and set to the temperature under the test conditions at this time. The heated portion of the test piece S is heated by the electric furnace 6. In this case, the electric furnace 6
Is formed in a block shape from a material having high thermal conductivity, and the test piece S is received and heated by the slit 14 cut deep, so that the entire heated portion of the test piece S is uniform and Heated uniformly. Moreover, the size of the electric furnace 6 can be made compact, and the space occupied by the test machine 1 can be reduced.
【００１２】そして、このような加熱状態を維持したま
まシリンダ４の引張り作用のもとで荷重をロードセル５
を介して検出し、当該試験片Ｓが破断するに至るまで荷
重データを採取記録する。しかる後、電気炉６を矢印Ａ
方向に後退させるとともに、下部グリップ２、上部グリ
ップ３に次の試験片Ｓを取り付け、以後同様にして試験
を連続して行うことができる。The load is applied to the load cell 5 under the tension of the cylinder 4 while maintaining such a heated state.
The load data is collected and recorded until the test piece S is broken. Then, move the electric furnace 6 to the arrow A
Then, the test piece S is attached to the lower grip 2 and the upper grip 3, and the test can be continuously performed in the same manner.
【００１３】[0013]
【考案の効果】以上の説明から明らかなように、本考案
によれば、伝熱性の高い金属材料を材質に電気炉本体を
形成し、この電気炉本体に伝熱ヒータを挿設するととも
に、線状または薄板帯状の試験片の被加熱部分を受容す
るスリットを形成しているので、当該試験片Ｓ被加熱部
分全体が一様にかつ均一に加熱されて試験結果の精度が
高まるとともに、構成が簡略化し電気炉自体の大きさを
コンパクトにまとめて試験機に占める占有スペースを小
さくすることができる。As is clear from the above description, according to the present invention, the electric furnace main body is formed of a metal material having high heat conductivity, and the heat transfer heater is inserted into the electric furnace main body. Since the slit for receiving the heated portion of the linear or thin strip-shaped test piece is formed, the entire heated portion of the test piece S is uniformly and uniformly heated, so that the accuracy of the test result is increased and the configuration is improved. Therefore, the size of the electric furnace itself can be made compact and the space occupied by the test machine can be reduced.
【図１】本考案による材料試験機用電気炉が適用される
試験機の構成を示す側面図。FIG. 1 is a side view showing a configuration of a testing machine to which an electric furnace for a material testing machine according to the present invention is applied.
【図２】本考案による材料試験機用電気炉の一実施例の
平面図。FIG. 2 is a plan view of an embodiment of an electric furnace for a material testing machine according to the present invention.
【図３】材料試験機用電気炉で試験片を加熱している状
態を表した斜視図。FIG. 3 is a perspective view showing a state where a test piece is heated by an electric furnace for a material testing machine.
１ 材料試験機 ２ 下部グリップ ３ 上部グリップ ４ シリンダ ５ ロードセル ６ 電気炉 １２ 電気炉本体 １３ 伝熱ヒータ １４ スリット １５ 熱電対 Ｓ 試験片 DESCRIPTION OF SYMBOLS 1 Material testing machine 2 Lower grip 3 Upper grip 4 Cylinder 5 Load cell 6 Electric furnace 12 Electric furnace main body 13 Heat transfer heater 14 Slit 15 Thermocouple S Test piece
Claims (1)
ック形状の電気炉本体を形成し、この電気炉本体にその
長さ方向に電熱ヒータを挿設するとともに、線状または
薄板帯状の試験片の被加熱部分を受容するスリットを前
記電気炉本体の先端部から長さ方向に形成したことを特
徴とする材料試験機用電気炉。1. A rectangular parallelepiped block-shaped electric furnace main body made of a metal material having a high heat conductivity, an electric heater is inserted into the electric furnace main body in its length direction, and a linear or thin strip test is performed. An electric furnace for a material testing machine, wherein a slit for receiving a heated portion of the piece is formed in a longitudinal direction from a front end of the electric furnace main body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1992013612U JP2571434Y2 (en) | 1992-03-16 | 1992-03-16 | Electric furnace for material testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1992013612U JP2571434Y2 (en) | 1992-03-16 | 1992-03-16 | Electric furnace for material testing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0575649U JPH0575649U (en) | 1993-10-15 |
| JP2571434Y2 true JP2571434Y2 (en) | 1998-05-18 |
Family
ID=11838055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1992013612U Expired - Fee Related JP2571434Y2 (en) | 1992-03-16 | 1992-03-16 | Electric furnace for material testing machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2571434Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6665624B2 (en) * | 2015-03-27 | 2020-03-13 | 日本製鉄株式会社 | Test apparatus and electron microscope equipped with the same |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4861880U (en) * | 1971-11-15 | 1973-08-06 | ||
| FR2628209B1 (en) * | 1988-03-01 | 1993-09-17 | Instron Corp | HEATING DEVICE FOR OBLONG SAMPLES SUBJECT TO TESTS |
-
1992
- 1992-03-16 JP JP1992013612U patent/JP2571434Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0575649U (en) | 1993-10-15 |
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