JPS647302Y2 - - Google Patents
Info
- Publication number
- JPS647302Y2 JPS647302Y2 JP3411983U JP3411983U JPS647302Y2 JP S647302 Y2 JPS647302 Y2 JP S647302Y2 JP 3411983 U JP3411983 U JP 3411983U JP 3411983 U JP3411983 U JP 3411983U JP S647302 Y2 JPS647302 Y2 JP S647302Y2
- Authority
- JP
- Japan
- Prior art keywords
- heater
- sample
- electric furnace
- gold layer
- outside
- 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
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 8
- 239000010931 gold Substances 0.000 claims description 8
- 229910052737 gold Inorganic materials 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 7
- 238000001259 photo etching Methods 0.000 claims description 5
- 238000002076 thermal analysis method Methods 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 239000011810 insulating material Substances 0.000 description 3
- RZVAJINKPMORJF-UHFFFAOYSA-N Acetaminophen Chemical compound CC(=O)NC1=CC=C(O)C=C1 RZVAJINKPMORJF-UHFFFAOYSA-N 0.000 description 1
- 229910000599 Cr alloy Inorganic materials 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 239000000788 chromium alloy Substances 0.000 description 1
- UPHIPHFJVNKLMR-UHFFFAOYSA-N chromium iron Chemical compound [Cr].[Fe] UPHIPHFJVNKLMR-UHFFFAOYSA-N 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000005297 pyrex Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Landscapes
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Description
【考案の詳細な説明】
本考案は、試料の状態を観察できる観察窓つき
熱分析用電気炉に関する。[Detailed Description of the Invention] The present invention relates to an electric furnace for thermal analysis with an observation window that allows observation of the state of a sample.
従来、この種の電気炉として、素線ヒータを基
材の上に巻回し、その外周を耐火練瓦等の断熱材
で囲繞させたものが知られるが、合成樹脂等温度
に対して変形、変色等をする試料を外部から観察
しようとしても、ヒータの支持基材及び断熱材に
遮られるために仔細に見ることが困難である。 Conventionally, as this type of electric furnace, one is known in which a wire heater is wound around a base material and its outer periphery is surrounded by a heat insulating material such as refractory brick, but synthetic resin deforms due to constant temperature, Even if you try to observe a sample that has changed color etc. from the outside, it is difficult to see it in detail because it is blocked by the support base material of the heater and the heat insulating material.
本考案はかかる不都合を無くすと共に、試料を
急速に昇温し且つ温度分布を均一にすることがで
きる熱分析用電気炉を提供することをその目的と
するもので、ホトエツチングにより網目状に形成
された帯状ヒータを試料を囲繞して自己支持さ
せ、その外側に、内面に透視可能な厚さの金層が
被着された透光性筒状基材から成るレフレクタを
配設したことを特徴とする。 The purpose of the present invention is to eliminate such inconveniences, and to provide an electric furnace for thermal analysis that can rapidly raise the temperature of a sample and make the temperature distribution uniform. A strip-shaped heater is made to surround the sample and support itself, and a reflector made of a translucent cylindrical base material whose inner surface is coated with a gold layer thick enough to be seen through is disposed on the outside of the heater. do.
第1図は熱天秤に適用された本考案の1実施例
を示す。同図において、1は透光性試料容器で、
該試料容器1はその底部から棒材2を介して天秤
に連なつており、石英ガラス製の均熱筒3内に収
納されている。4は不活性ガス等を流す石英ガラ
スから成る筒体である。該筒体4を囲繞するヒー
タ5は、ホトエツチングにより網目状に形成され
た例えば鉄・クローム合金製の帯状ヒータから成
り、第2図及び第3図に明瞭に示すように、該帯
状ヒータは並列した複数個の帯状片6がそれぞれ
その両端で隣接する他の帯状片6に接続されて直
列接続されたもので、その接続部に設けた爪片7
を上下に固設したデイスク8,8に自己支持され
ている。9は内面にメツキ等で透視可能な厚さの
金層10が被着された石英ガラス等の透光性筒状
基材から成るレフレクタで、該レフレクタ9は、
ヒータ5からの輻射熱を金層10面で反射し、輻
射熱が外部に漏れるのを遮断するものである。 FIG. 1 shows an embodiment of the present invention applied to a thermobalance. In the figure, 1 is a translucent sample container;
The sample container 1 is connected from its bottom to a balance via a bar 2, and is housed in a soaking tube 3 made of quartz glass. 4 is a cylinder made of quartz glass through which an inert gas or the like flows. The heater 5 surrounding the cylindrical body 4 is made of a strip heater made of, for example, an iron-chromium alloy and formed into a mesh shape by photo-etching.As clearly shown in FIGS. 2 and 3, the strip heaters are arranged in parallel. A plurality of strips 6 are connected in series by connecting each of the strips 6 at both ends to adjacent strips 6, and a claw piece 7 provided at the connecting portion
It is self-supported by disks 8, 8 which are fixedly mounted above and below. Reference numeral 9 denotes a reflector made of a transparent cylindrical base material such as quartz glass, the inner surface of which is coated with a gold layer 10 thick enough to be seen through by plating or the like;
The radiant heat from the heater 5 is reflected by the gold layer 10 surface, thereby blocking the radiant heat from leaking to the outside.
第1図において、11はパイレツクス等で作成
された透明な保護筒体、12は本電気炉を載置し
た熱天秤装置部である。 In FIG. 1, 11 is a transparent protective cylinder made of Pyrex or the like, and 12 is a thermobalance unit on which the present electric furnace is mounted.
次に、その作動を説明すると、前記ヒータ5
は、その上下部においてデイスク8,8に固着さ
れて自己支持されると共にホトエツチングにより
網目状に形成されており、またレフレクタ9は金
層10が透視可能な厚さであり且つ透光性筒状基
材を用いているから、レフレクタ9の外側から見
た場合、ヒータ5の赤熱により明るくなつている
雰囲気内に配置された試料をその形状,色等につ
いて仔細に観察することができる。 Next, the operation of the heater 5 will be described.
is fixed at its upper and lower parts to the disks 8, 8 so as to be self-supporting, and is formed into a mesh-like shape by photoetching. The reflector 9 is thick enough that the gold layer 10 can be seen through, and uses a translucent cylindrical base material. Therefore, when viewed from the outside of the reflector 9, the shape, color, etc. of the sample placed in the atmosphere brightened by the red heat of the heater 5 can be closely observed.
前記ヒータ5はホトエツチングにより微細な網
目状に形成されているため熱抵抗が大きいので、
温度勾配が小さく、温度分布がほぼ一様である。
このヒータ5は支持部材上に配設されていず自行
己支持されているので熱容量が小さく、またレフ
レクタ9はヒータ5から外方への輻射熱を金層1
0により反射し外部に対して熱遮断するようにな
つているから熱容量が小さい。かくして試料の温
度を急速に上昇させることができるし、また急速
に下降させることもできる。 The heater 5 has a large thermal resistance because it is formed into a fine mesh shape by photo-etching.
The temperature gradient is small and the temperature distribution is almost uniform.
Since this heater 5 is not disposed on a support member and is self-supporting, its heat capacity is small, and the reflector 9 transfers outward radiant heat from the heater 5 to the gold layer 1.
The heat capacity is small because it is reflected by zero and blocks heat from the outside. In this way, the temperature of the sample can be raised rapidly, and it can also be lowered rapidly.
このヒータ5は、1つの帯状片6と隣接する帯
状片6とに互に逆方向の電流が流れるので、該電
流によつてできる磁束は互に打消し合い無誘導と
なり、かくして磁力線の影響を受けるのが好まし
くない試料にはこのヒータは好適である。第4図
は本考案(実線)と、素線ヒータを用い耐火練瓦
等の断熱材を設けた従来(破線)の電気炉の昇降
温度特性図を示す。従来品は20℃/分であるのに
対し、本考案の電気炉は100℃/分の速昇温特性
が得られた。 In this heater 5, current flows in opposite directions between one strip 6 and the adjacent strip 6, so the magnetic flux generated by the current cancels each other and becomes non-inductive, thus eliminating the influence of magnetic lines of force. This heater is suitable for samples that are undesirably exposed. FIG. 4 shows rising and falling temperature characteristics of the electric furnace of the present invention (solid line) and the conventional electric furnace (dashed line) that uses a wire heater and is provided with a heat insulating material such as refractory tiles. The electric furnace of the present invention achieved a rapid heating rate of 100°C/min, compared to 20°C/min for conventional products.
このように本考案によるときは、ホトエツチン
グにより網目状に形成されたヒータを試料を囲繞
して自己支持させ、その外側に、内面に透光可能
な厚さの金層が被着された透光性筒状基材からな
るレフレクタを配設したので、熱分析中の試料の
形状,色等を外部から仔細に観察できると共に試
料を急速に昇温し且つ温度分布を均一にできる効
果を有する。 In this way, according to the present invention, a heater formed in a mesh shape by photo-etching is made to surround the sample and support itself, and a light-transmitting heater coated with a gold layer thick enough to transmit light on the inner surface is placed on the outside of the heater. Since a reflector made of a flexible cylindrical base material is provided, it is possible to closely observe the shape, color, etc. of the sample during thermal analysis from the outside, and also has the effect of rapidly increasing the temperature of the sample and making the temperature distribution uniform.
第1図は熱天秤に適用された本考案の1実施例
の断面図、第2図は第1図の−線截断面図、
第3図はヒータの一部展開図、第4図は本発明と
従来例の電気炉の昇降温度特性図を示す。
1……試料容器、5……ヒータ、9……レフレ
クタ、10……金層。
Fig. 1 is a sectional view of one embodiment of the present invention applied to a thermobalance, Fig. 2 is a sectional view taken along the line - - of Fig. 1,
FIG. 3 is a partial exploded view of the heater, and FIG. 4 is a rise/fall temperature characteristic diagram of electric furnaces of the present invention and a conventional example. 1...Sample container, 5...Heater, 9...Reflector, 10...Gold layer.
Claims (1)
ヒータを試料を囲繞して自己支持させ、その外側
に、内面に透視可能な厚さの金層が被着された透
光性筒状基材から成るレフレクタを配設したこと
を特徴とする観察窓つき熱分析用電気炉。 A band-shaped heater formed into a mesh shape by photo-etching surrounds the sample and is self-supporting, and a reflector made of a translucent cylindrical base material whose inner surface is coated with a thick gold layer that can be seen through is placed on the outside. An electric furnace for thermal analysis with an observation window.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3411983U JPS59142695U (en) | 1983-03-11 | 1983-03-11 | Electric furnace for thermal analysis with observation window |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3411983U JPS59142695U (en) | 1983-03-11 | 1983-03-11 | Electric furnace for thermal analysis with observation window |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS59142695U JPS59142695U (en) | 1984-09-22 |
JPS647302Y2 true JPS647302Y2 (en) | 1989-02-27 |
Family
ID=30164889
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3411983U Granted JPS59142695U (en) | 1983-03-11 | 1983-03-11 | Electric furnace for thermal analysis with observation window |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS59142695U (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102538461B (en) * | 2011-12-31 | 2013-08-14 | 东北电力大学 | Small-sized burning furnace for on-line analysis of weightless method |
KR101395717B1 (en) * | 2013-01-08 | 2014-06-19 | 한전원자력연료 주식회사 | Vacuum arc melting apparatus for easy-to-the specimen observation and for the convenient electrode movement |
-
1983
- 1983-03-11 JP JP3411983U patent/JPS59142695U/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS59142695U (en) | 1984-09-22 |
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