JPH03129900U - - Google Patents
Info
- Publication number
- JPH03129900U JPH03129900U JP3882190U JP3882190U JPH03129900U JP H03129900 U JPH03129900 U JP H03129900U JP 3882190 U JP3882190 U JP 3882190U JP 3882190 U JP3882190 U JP 3882190U JP H03129900 U JPH03129900 U JP H03129900U
- Authority
- JP
- Japan
- Prior art keywords
- furnace
- stud pin
- heating element
- coil spring
- shape memory
- 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
- 238000010438 heat treatment Methods 0.000 claims description 6
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims description 5
- 229910001566 austenite Inorganic materials 0.000 claims 1
- 230000009466 transformation Effects 0.000 claims 1
- 238000009434 installation Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 1
Landscapes
- Resistance Heating (AREA)
- Furnace Details (AREA)
Description
第１図は本考案による電気炉用スタツドピンを
示す図で、第１図ａは発熱体に通電せず、常温状
態にある時の電気炉の発熱体、形状記憶合金のコ
イルばね、スタツドピンの取付け状態を示す断面
図、第１図ｂは発熱体が発熱し、炉内が高温にあ
り、形状記憶合金のコイルばねが伸長した時の状
態を示す断面図。第２図は従来の電気炉用スタツ
ドピンを示す図で、第２図ａは取付け当初の新し
いスタツドピンである時の断面図、第２図ｂは炉
内温度の昇温降温が繰り返し、スタツドピンの先
端が炉内に垂れ下がつた状態を示す断面図。
１……スタツドピン、２……発熱体、３……礙
子、４……炉体、５……炉枠、６……形状記憶合
金のコイルばね、６ａ，６ｂ……コイル保持枠、
７……点検口。
Figure 1 shows the stud pin for an electric furnace according to the present invention, and Figure 1a shows the installation of the electric furnace heating element, shape memory alloy coil spring, and stud pin when the heating element is not energized and is at room temperature. Fig. 1b is a sectional view showing the state when the heating element generates heat, the inside of the furnace is at a high temperature, and the shape memory alloy coil spring is expanded. Figure 2 shows a conventional stud pin for electric furnaces. Figure 2a is a cross-sectional view of the stud pin when it is new at the time of installation, and Figure 2b is a cross-sectional view of the stud pin when the temperature inside the furnace is repeatedly raised and lowered. FIG. DESCRIPTION OF SYMBOLS 1... Stud pin, 2... Heating element, 3... Heater, 4... Furnace body, 5... Furnace frame, 6... Shape memory alloy coil spring, 6a, 6b... Coil holding frame,
7...Inspection port.
Claims (1)
保持されているスタツドピンにおいて、炉体に保
持されたスタツドピンの発熱体の反対位置のスタ
ツドピンに連結して、炉壁と炉枠の間に室温以上
のマルテンサイト・オーステナイト変態温度の動
作温度特性を持つ形状記憶合金のコイルばねを取
付け、炉内が昇温時にスタツドピンを炉枠方向に
引つ張る様に構成したことを特徴とする電気炉用
スタツドピン。 The stud pin that holds the heating element of the electric furnace is fixed and is held in the furnace body, and the stud pin held in the furnace body is connected to the stud pin at the opposite position of the heating element, and the stud pin is connected between the furnace wall and the furnace frame. A shape memory alloy coil spring having an operating temperature characteristic of a martensite-austenite transformation temperature above room temperature is attached to the coil spring of a shape memory alloy, and the stud pin is configured to be pulled in the direction of the furnace frame when the temperature inside the furnace rises. Stud pin for furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3882190U JPH03129900U (en) | 1990-04-10 | 1990-04-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3882190U JPH03129900U (en) | 1990-04-10 | 1990-04-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03129900U true JPH03129900U (en) | 1991-12-26 |
Family
ID=31547175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3882190U Pending JPH03129900U (en) | 1990-04-10 | 1990-04-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03129900U (en) |
-
1990
- 1990-04-10 JP JP3882190U patent/JPH03129900U/ja active Pending
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