JPH0213816A - Temperature measuring apparatus for molten metal - Google Patents
Temperature measuring apparatus for molten metalInfo
- Publication number
- JPH0213816A JPH0213816A JP16384088A JP16384088A JPH0213816A JP H0213816 A JPH0213816 A JP H0213816A JP 16384088 A JP16384088 A JP 16384088A JP 16384088 A JP16384088 A JP 16384088A JP H0213816 A JPH0213816 A JP H0213816A
- Authority
- JP
- Japan
- Prior art keywords
- molten metal
- temperature measuring
- protective tube
- temperature
- tube
- 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
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 48
- 239000002184 metal Substances 0.000 title claims abstract description 48
- 230000001681 protective effect Effects 0.000 claims abstract description 32
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims abstract description 19
- 238000003780 insertion Methods 0.000 claims abstract description 12
- 230000037431 insertion Effects 0.000 claims abstract description 12
- 229910052582 BN Inorganic materials 0.000 abstract description 16
- 238000009749 continuous casting Methods 0.000 abstract description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000010453 quartz Substances 0.000 description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- 238000009529 body temperature measurement Methods 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 239000004570 mortar (masonry) Substances 0.000 description 3
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 3
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- 229910001928 zirconium oxide Inorganic materials 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- PXXKQOPKNFECSZ-UHFFFAOYSA-N platinum rhodium Chemical compound [Rh].[Pt] PXXKQOPKNFECSZ-UHFFFAOYSA-N 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 229910010271 silicon carbide Inorganic materials 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910052726 zirconium Inorganic materials 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910001006 Constantan Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000000615 nonconductor Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、電気炉、取鍋、タンディシェ等の各種金属溶
湯容器に配設し２着脱及び加工容易で耐熱性及び耐久性
に優れた金属溶湯の温度測定装置に関する。[Detailed Description of the Invention] [Field of Industrial Application] The present invention provides a metal that is easy to attach and detach, is easy to process, and has excellent heat resistance and durability. This invention relates to a molten metal temperature measuring device.
金属溶湯の温度測定装置は、一般に電気炉、取鍋等の各
種金属溶湯容器内に配設され ３ｇ容器中の金属溶湯の
温度を測定するものである。A molten metal temperature measuring device is generally installed in various types of molten metal containers such as electric furnaces and ladles, and measures the temperature of molten metal in a 3 g container.
また、上記温度測定装置は金属溶湯等の高温測定物の温
度を測定するため、熱電対を利用した熱電高温度針であ
ることが多い。Further, the temperature measuring device is often a thermoelectric high temperature needle using a thermocouple in order to measure the temperature of a high temperature object such as molten metal.
該熱電高温度針は、熱電対の一端を一定の温度に保持し
、また他端を金属溶湯等の被測定物の近傍に配設する。The thermoelectric high temperature needle maintains one end of the thermocouple at a constant temperature, and the other end is placed near the object to be measured, such as molten metal.
これにより１両者の温度差で生じた電力を測定して、金
属溶湯等の高温測定物の温度を測定することができる。With this, it is possible to measure the temperature of a high temperature object such as molten metal by measuring the electric power generated due to the temperature difference between the two.
ところで、上記温度測定装置は高温測定物の温度を測定
するため、従来、保護管は炭化珪素（ＳｔＣ）、ホウ化
ジルコニウム（ＺｒＢｔ）等からなる耐熱セラミック材
料により構成することが知られている。By the way, since the above-mentioned temperature measuring device measures the temperature of a high-temperature measurement object, it is conventionally known that the protective tube is made of a heat-resistant ceramic material such as silicon carbide (StC) or zirconium boride (ZrBt).
また、第５図に示すごとく、従来の温度測定装置９は容
器８の上方より金属溶湯７中に挿入して温度を測定する
ものである。Further, as shown in FIG. 5, a conventional temperature measuring device 9 is inserted into the molten metal 7 from above the container 8 to measure the temperature.
しかしながら、上記炭化珪素及びホウ化ジルコニウムか
らなる保護管は、一般に熱衝撃性等の耐熱性に優れない
、そのため、使用に際して、該保護管を急熱することは
避けなければならない。これは、ヒートシボツクによる
亀裂発生等を防止するためである。そこで、これらの材
料からなる保護管は、一般に使用に際し長時間予熱して
おき。However, the protective tube made of silicon carbide and zirconium boride generally does not have excellent heat resistance such as thermal shock resistance, and therefore, it is necessary to avoid heating the protective tube rapidly during use. This is to prevent cracks from occurring due to heat shrinkage. Therefore, protective tubes made of these materials are generally preheated for a long time before use.
一定の温度に保ちつつ使用されている。しかし。It is used while maintaining a constant temperature. but.
これでは手間を要し、その作業は煩わしい。This requires time and effort, and the work is troublesome.
また、上記従来の温度測定装置は、一般に容器の上方よ
り金属溶湯中に挿入しているが、これでは金属溶湯表面
に浮遊するノロ等で保護管が溶損する場合があり、耐久
性に優れない。In addition, the conventional temperature measuring device described above is generally inserted into the molten metal from above the container, but in this case, the protective tube may be eroded by slag etc. floating on the surface of the molten metal, resulting in poor durability. .
本発明は、かかる従来技術の問題点に鑑みてなされたも
ので２着脱及び加工容易で耐熱性及び耐久性に優れた金
属溶湯の温度測定装置を提供しようとするものである。The present invention has been made in view of the problems of the prior art, and it is an object of the present invention to provide a temperature measuring device for molten metal that is easy to attach and detach, is easy to process, and has excellent heat resistance and durability.
本発明は、金属溶湯を入れる容器内の金属溶湯の温度を
測定するための温度測定装置において。The present invention relates to a temperature measuring device for measuring the temperature of molten metal in a container containing molten metal.
該温度測定装置は窒化ホウ素（ＢＮ）からなる保護管と
、該保護管内に挿置した熱電対等の温度センサーとから
なると共に、また上記保護管は上記容器の側壁に配設し
た保護管嵌挿孔内に嵌挿してなることを特徴とする金属
溶湯の温度測定装置にある。The temperature measurement device consists of a protection tube made of boron nitride (BN) and a temperature sensor such as a thermocouple inserted into the protection tube. A temperature measuring device for molten metal characterized by being fitted into a hole.
本発明において、上記金属溶湯は２例えば鉄（Ｆｅ）、
アルミニウム（Ａｊり 、 Ｗ４ （Ｃｕ） 。In the present invention, the molten metal is 2, for example iron (Fe),
Aluminum (Ajri, W4 (Cu).
チタン（Ｔｉ）等の各種の金属を溶解したものである。It is made by melting various metals such as titanium (Ti).
また、上記容器は９例えば電気炉、取鍋、タンデイシュ
等の上記金属溶湯を入れるものである。Further, the container is a container for storing the molten metal, such as an electric furnace, a ladle, or a tundish.
特に、該タンデイシュは取鍋から注入された金属溶湯を
一旦受は入れる容器である。また、タンデイシュは金属
溶湯の流量を調整し、また金属溶湯中のノロ等を分離浮
上して金属溶湯を清浄化するものである。そのため、タ
ンデイシュは金属溶湯の温度管理を必要とし、スライデ
ィングノズルを底部に有する（第４図参照）、それ故、
温度測定装置は、該タンデイシュのスライディングノズ
ル近傍の、流動する金属溶湯の温度を測定できる位置に
配設することが好ましい。In particular, the tundish is a container that temporarily receives molten metal poured from a ladle. Further, the tundish adjusts the flow rate of the molten metal, and also separates and floats slag etc. in the molten metal to clean the molten metal. Therefore, the tundish requires temperature control of the molten metal and has a sliding nozzle at the bottom (see Figure 4), therefore,
The temperature measuring device is preferably disposed near the sliding nozzle of the tundish at a position where it can measure the temperature of the flowing molten metal.
また、上記保護管は上記熱電対を内蔵し保護するための
ケースである０本発明においては、該保護管は窒化ホウ
素（ＢＮ）により構成する。かかる保護管は、ＢＮ粉末
を所望の保護管形状に成形し、高温に加熱焼結すること
により作製する。Further, in the present invention, the protective tube is a case for housing and protecting the thermocouple, and the protective tube is made of boron nitride (BN). Such a protective tube is produced by molding BN powder into a desired protective tube shape and heating and sintering it at a high temperature.
また、上記保護管嵌挿孔は、上記保護管を嵌着自在に配
設する。これにより、容器中の金属溶湯の温度を正確に
測定することができる。なお、該嵌挿孔の内壁には、保
護管の装着、取出しを容易にするため１石英管等の耐熱
性パイプを介設することが好ましい、しかして、前記嵌
挿孔と保護管との間隙、或いはこれらと石英管との間の
間隙には、酸化ジルコニウム等の耐熱性モルタルを充填
し、これらの間隙を塞ぐ。Moreover, the protection tube is disposed in the protection tube insertion hole so that the protection tube can be freely fitted therein. Thereby, the temperature of the molten metal in the container can be accurately measured. In addition, it is preferable to insert a heat-resistant pipe such as a quartz tube on the inner wall of the insertion hole to facilitate attachment and removal of the protection tube. The gaps or the gaps between these and the quartz tube are filled with heat-resistant mortar such as zirconium oxide to close these gaps.
また、上記温度センサーとしては２例えば熱電対、放射
温度計、測温センサーがある。該熱電対は、２つの異な
る金属９例えば銅とコンスタンタン、白金と白金ロジウ
ム等を環状に連結し、２接点間の温度差により温度を知
り得るものである。Further, the above-mentioned temperature sensors include, for example, a thermocouple, a radiation thermometer, and a temperature sensor. The thermocouple is a device in which two different metals 9, such as copper and constantan, platinum and platinum-rhodium, are connected in a ring, and the temperature can be determined by the temperature difference between the two contacts.
また、上記放射温度計は高温測定物からの放射熱を熱電
対に当て９発生する起電力により温度を測る高温計であ
る。また、上記測温センサーは１例えば測温抵抗体を使
用したものがある。これは。The radiation thermometer is a pyrometer that measures temperature by applying radiant heat from a high-temperature measurement object to a thermocouple and generating an electromotive force. Further, some of the above-mentioned temperature sensors use, for example, a resistance temperature sensor. this is.
電気抵抗が温度によって変化する性質を利用した測温用
抵抗体である。This is a temperature measuring resistor that utilizes the property that electrical resistance changes with temperature.
また、上記とは別に、前記保護管嵌挿孔と保護管との間
に、もう１つの温度センサーを配設することが好ましい
、これにより、万一上記嵌挿孔内に金属溶湯が浸入して
来た場合には、それを検出し、冷却、溶湯の早急排出等
の安全措置を行うことができる。In addition to the above, it is preferable to arrange another temperature sensor between the protection tube insertion hole and the protection tube, so that in case molten metal intrudes into the protection tube insertion hole, If this occurs, it can be detected and safety measures such as cooling and immediate discharge of the molten metal can be taken.
〔作用及び効果〕
本発明にかかる金属溶湯の温度測定装置は、保護管が窒
化ホウ素からなる。そのため、該窒化ホウ素は電気的に
絶縁体であり、熱電対等を内蔵する熱電高温度針のケー
スとしては好ましい、また。[Function and Effect] In the molten metal temperature measuring device according to the present invention, the protective tube is made of boron nitride. Therefore, boron nitride is an electrical insulator and is preferred as a case for a thermoelectric high-temperature needle containing a thermocouple or the like.
窒化ホウ素は結晶構造が安定しているため、耐熱性、耐
食性、耐久性に優れる。Boron nitride has a stable crystal structure, so it has excellent heat resistance, corrosion resistance, and durability.
それ故、上記保護管は温度測定装置の使用に当リ、予熱
する必要がない。また、使用中にノロ等で溶損すること
がなく、耐熱性、耐久性、経済性及び安全性に優れる。Therefore, the protective tube does not need to be preheated for use with the temperature measuring device. In addition, it does not get eroded by slag or the like during use, and has excellent heat resistance, durability, economic efficiency, and safety.
なお、窒化ホウ素は高純度のものが好ましく、高純度の
ものは、約２０００℃以上の温度に耐えるものである。Note that boron nitride preferably has high purity, and high purity boron nitride can withstand temperatures of about 2000° C. or higher.
また、窒化ホウ素は不純物ガス等に対しても耐久性を有
する。Further, boron nitride has durability against impurity gases and the like.
そして、窒化ホウ素は加工性が良い。Moreover, boron nitride has good workability.
また、温度測定装置は容器の側壁に配設した保護管嵌挿
孔内に保護管を嵌挿してなるものである。Further, the temperature measuring device is constructed by inserting a protection tube into a protection tube insertion hole provided in the side wall of the container.
そのため、該保護管の着脱は容易であり、また該保護管
は加工が比較的容易である。Therefore, the protective tube is easy to attach and detach, and the protective tube is relatively easy to process.
したがって２本発明によれば２着脱及び加工が容易で、
耐熱性、耐久性、経済性及び安全性に優れた金属溶湯の
温度測定装置を提供することができる。Therefore, according to the present invention, attachment and detachment and processing are easy;
It is possible to provide a temperature measuring device for molten metal that has excellent heat resistance, durability, economic efficiency, and safety.
本発明にかかる温度測定装置を、第１図〜第４図を用い
て説明する。The temperature measuring device according to the present invention will be explained using FIGS. 1 to 4.
即ち９本例の温度測定装置は、第１図及び第２図に示す
ごとく、窒化ホウ素からなる保護管１と。That is, as shown in FIGS. 1 and 2, the temperature measuring device of this example includes a protection tube 1 made of boron nitride.
該保護管１に内蔵した熱電対２と、該熱電対２を保護管
１内で固着させ保護するために充填したアルミナ焼結体
のチューブ３よりなる。なお、符号２１は熱電対のリー
ド線である。It consists of a thermocouple 2 built into the protective tube 1 and a tube 3 made of alumina sintered body filled to secure and protect the thermocouple 2 within the protective tube 1. In addition, the code|symbol 21 is a lead wire of a thermocouple.
上記保護管１は、本体１１の先端部１２を略半球状とし
た円筒状の窒化ホウ素焼結体よりなる。The protective tube 1 is made of a cylindrical boron nitride sintered body with a main body 11 having a substantially hemispherical distal end 12.
該窒化ホウ素焼結体は、窒化ホウ素粉末を黒鉛炉を用い
て約２１００″Ｃで焼結し、酸化物等の不純物を除去し
て製造したものである。The boron nitride sintered body is produced by sintering boron nitride powder at about 2100''C using a graphite furnace and removing impurities such as oxides.
また、上記熱電対２は白金と白金ロジウムとの２つの異
なる金属を環状に連結したものである。Further, the thermocouple 2 is made by connecting two different metals, platinum and platinum-rhodium, in a ring shape.
また、上記チューブ３はアルミナ焼結体からなる耐熱絶
縁材料よりなる。これにより、該チューブ３は上記熱電
対を高温ガス等から保護し、熱電対の耐食性及び耐久性
を向上させる。Further, the tube 3 is made of a heat-resistant insulating material made of alumina sintered body. Thereby, the tube 3 protects the thermocouple from high-temperature gas, etc., and improves the corrosion resistance and durability of the thermocouple.
また９本例の温度測定装置は連続鋳造機６におけるタン
デイシュ６２の側壁６２１に配設する。Further, the temperature measuring device of this embodiment is disposed on the side wall 621 of the tundish 62 in the continuous casting machine 6.
該連続鋳造機６は、第３図に示すごとく、取ＭＩ４６１
と、タンデイシュ６２と、鋳型６３と、ガイドロール６
４と矯正ロール６５とピンチロール６６と切断機６７よ
りなる。なお、符号７は金属溶湯。The continuous casting machine 6, as shown in FIG.
, tundish 62 , mold 63 , and guide roll 6
4, a straightening roll 65, a pinch roll 66, and a cutting machine 67. In addition, code 7 is a molten metal.
また符号７１は鋳片である。Further, reference numeral 71 is a slab.
また、上記タンデイシュ６２は、第４図に示すごとく、
取ｗ４６１から注入された金属溶湯７を一旦受は入れ、
鋳型６３へ金属溶湯７を送る容器である。該タンデイシ
ュ６２は、その側壁６２１に温度測定装置の保護管ｌを
嵌挿するための嵌挿孔６２２を有する。In addition, the tundish 62, as shown in FIG.
Once the molten metal 7 injected from the drawer w461 is placed in the receiver,
This is a container for sending the molten metal 7 to the mold 63. The tundish 62 has a fitting hole 622 in its side wall 621 into which the protective tube l of the temperature measuring device is fitted.
上記側壁６２１は、第１図及び第２図に示すごとく、キ
ャスタブル炉壁５よりなる。該キャスタブル炉壁５はマ
グネシアコーティングＪｉ５１を炉壁内側に有する。The side wall 621 is made of a castable furnace wall 5, as shown in FIGS. 1 and 2. The castable furnace wall 5 has a magnesia coating Ji51 on the inside thereof.
また、上記保護管ｌは、キャスタブル炉壁５に形設され
た嵌挿孔５ｑに嵌挿する。そして、保護管１は、その先
端部１２を炉壁内側へ約６０ｍ突出させる。また、保護
管ｌは、キャスタブル炉壁５との間に石英管５２を介在
させている。これにより、保護管１の嵌挿を容易にする
と共に、保護管１の破損等を防止する。Further, the protection tube 1 is fitted into a fitting hole 5q formed in the castable furnace wall 5. The protective tube 1 has its tip portion 12 protruding approximately 60 m into the furnace wall. Further, a quartz tube 52 is interposed between the protective tube l and the castable furnace wall 5. This facilitates the insertion and insertion of the protective tube 1 and prevents the protective tube 1 from being damaged.
また、保護管１と石英管５２との間には酸化ジルコニウ
ム（ＺｒＯ２）モルタル５４を充填する。Further, a zirconium oxide (ZrO2) mortar 54 is filled between the protective tube 1 and the quartz tube 52.
これにより９両者の隙間をなくシ、熱の損失等を防止す
る。また、外側には鉄皮５５を取付ける。This eliminates the gap between the two parts and prevents heat loss. Further, an iron skin 55 is attached to the outside.
また、上記モルタル５４と石英管５２との間には上記熱
電対２とは異なる他の熱電対４を配設する。なお、符号
４１はリード線である。これにより、万一炉壁内側へ金
属溶湯が洩れてきた場合においても、その熱を検知し、
警告する。つまり。Furthermore, a thermocouple 4 different from the thermocouple 2 is disposed between the mortar 54 and the quartz tube 52. In addition, the code|symbol 41 is a lead wire. As a result, even if molten metal leaks into the inside of the furnace wall, the heat can be detected and
Warning. In other words.
上記側の熱電対４は湯洩検出温度センサーの機能を有す
る。また、かかる湯洩れの場合には、外方よりアルゴン
又は空気で冷却をし、浸入してくる溶湯を固化させてそ
の浸入を阻止する。また溶湯レベルを下げる。The thermocouple 4 on the above side has the function of a hot water leak detection temperature sensor. In addition, in the case of such a leakage, cooling is performed from the outside with argon or air to solidify the invading molten metal and prevent its infiltration. Also lower the molten metal level.
即ち、上記熱電対４の挿入位置は通常３００〜４００°
Ｃであるが、保護管外周の隙間などがら溶湯が浸入し始
めたときには８００〜１１００’Ｃまで温度が上る。そ
こで、かかる昇温状態を検知したときには、鉄皮５５な
どを上記のごと（冷却する。それでも、溶湯の浸入を防
ぎきれずに。That is, the insertion position of the thermocouple 4 is usually 300 to 400 degrees.
C, but when the molten metal begins to enter the gaps around the outer periphery of the protective tube, the temperature rises to 800-1100'C. Therefore, when such a state of temperature increase is detected, the iron skin 55 and the like are cooled down as described above.However, the intrusion of molten metal cannot be prevented completely.
１３００”Ｃを越える場合には、操業を停止して。If the temperature exceeds 1300"C, stop operation.
溶湯を排出して、溶鋼飛散の事故を防止する。Discharge the molten metal to prevent molten steel scattering accidents.
上記のごとく１本例の温度測定装置は窒化ホウ素からな
る保護管により構成されているため、加工性が容易で、
また耐熱性及び耐久性に優れる。As mentioned above, the temperature measuring device in this example is constructed of a protection tube made of boron nitride, so it is easy to process.
It also has excellent heat resistance and durability.
また１本例の温度測定装置の保護管はタンデイシュの側
壁における嵌挿孔に嵌挿するので１着脱が容易であり、
更に石英管の介在により９着脱は一層容易となる。In addition, the protective tube of the temperature measuring device in this example fits into the insertion hole in the side wall of the tundish, so it is easy to attach and detach.
Furthermore, the presence of the quartz tube makes attachment and detachment of the 9 easier.
したがって３本例によれば１着脱及び加工が容易で耐熱
性及び嵌挿孔に優れた金属溶湯の温度測定装置を提供す
ることができる。Therefore, according to the three embodiments, it is possible to provide a temperature measuring device for molten metal that is easy to attach and detach, is easy to process, and has excellent heat resistance and insertion holes.
第１図〜第４図は本発明にかかる実施例を示し。
第１図は温度測定装置の側面断面図、第２図は第１図の
Ａ−Ａ矢視拡大断面図、第３図は連続鋳造機の概要説明
図、第４図はタンデイシュの側面断面図、第５図は従来
の温度測定装置の使用説明断面図である。
１０８．保護管、 １１．、、本体。
１２、、、先端部。
２．４．、、熱電対。
３０１．チューブ。
５・・、キャスタブル炉壁。
５２、、、石英管。
６８１．連続鋳造機。
７００．金属溶湯。1 to 4 show embodiments according to the present invention. Figure 1 is a side sectional view of the temperature measuring device, Figure 2 is an enlarged sectional view taken along the line A-A in Figure 1, Figure 3 is a schematic explanatory diagram of the continuous casting machine, and Figure 4 is a side sectional view of the tundish. , FIG. 5 is a sectional view illustrating the use of a conventional temperature measuring device. 108. Protection tube, 11. ,,Body. 12. Tip. 2.4. ,,thermocouple. 301. tube. 5. Castable furnace wall. 52, Quartz tube. 681. Continuous casting machine. 700. Molten metal.
Claims (1)
めの温度測定装置において、 該温度測定装置は窒化ホウ素（ＢＮ）からなる保護管と
、該保護管内に挿置した熱電対等の温度センサーとから
なると共に、また上記保護管は上記容器の側壁に配設し
た保護管嵌挿孔内に嵌挿してなることを特徴とする金属
溶湯の温度測定装置。[Claims] A temperature measuring device for measuring the temperature of molten metal in a container containing molten metal, the temperature measuring device comprising a protective tube made of boron nitride (BN) and a protective tube inserted into the protective tube. 1. An apparatus for measuring the temperature of molten metal, comprising a temperature sensor such as a thermocouple, and the protection tube being fitted into a protection tube insertion hole provided in a side wall of the container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16384088A JPH0213816A (en) | 1988-06-30 | 1988-06-30 | Temperature measuring apparatus for molten metal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16384088A JPH0213816A (en) | 1988-06-30 | 1988-06-30 | Temperature measuring apparatus for molten metal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0213816A true JPH0213816A (en) | 1990-01-18 |
Family
ID=15781750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16384088A Pending JPH0213816A (en) | 1988-06-30 | 1988-06-30 | Temperature measuring apparatus for molten metal |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0213816A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100988551B1 (en) * | 2010-01-15 | 2010-10-20 | 임광현 | Liquid metal temperature for measured temperature unit for the tundish |
| US9983053B2 (en) | 2011-05-20 | 2018-05-29 | Murata Manufacturing Co., Ltd. | Optical sensor device |
-
1988
- 1988-06-30 JP JP16384088A patent/JPH0213816A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100988551B1 (en) * | 2010-01-15 | 2010-10-20 | 임광현 | Liquid metal temperature for measured temperature unit for the tundish |
| US9983053B2 (en) | 2011-05-20 | 2018-05-29 | Murata Manufacturing Co., Ltd. | Optical sensor device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2399106B1 (en) | Temperature measuring device | |
| EP0454846B1 (en) | Thermocouple-type temperature sensor and method of measuring temperature of molten steel | |
| CN1721106B (en) | Container for melting metal, its use and method for determining interlayer | |
| US3610045A (en) | Thermocouples | |
| CN109996622B (en) | Method and device for detecting a variable in a spout of a metallurgical vessel | |
| JPH0333212B2 (en) | ||
| US5232286A (en) | Long lasting thermocouple for high temperature measurements of liquid metals, mattes and slags | |
| JPH0213816A (en) | Temperature measuring apparatus for molten metal | |
| US4355907A (en) | Apparatus for picking up a molten test sample of metal or metal alloys and measuring the cooling curve of said sample | |
| JP2000035364A (en) | Device for continuous temperature-measurement of melted metal device | |
| JP2013015488A (en) | Thermo couple | |
| JPH01299423A (en) | Protective-tube type meter for continuous temperature measurement | |
| JPH07190749A (en) | Residual thickness detecting structure of refractory for gas blowing-in | |
| JPH054928Y2 (en) | ||
| JP7342626B2 (en) | Temperature measurement equipment | |
| JPS6239300Y2 (en) | ||
| JP5082035B2 (en) | Molten metal temperature measuring device and temperature measuring method | |
| JPH01299424A (en) | Damage preventing method of protective-tube type meter for continuous temperature measurement | |
| JPH0638320Y2 (en) | Temperature sensor for molten metal | |
| JPS6160365B2 (en) | ||
| KR100988551B1 (en) | Liquid metal temperature for measured temperature unit for the tundish | |
| EP1716945A1 (en) | Immersed pour tube, installation comprising it, process of manufacture and use thereof. | |
| JPH0629789B2 (en) | Thermocouple protection tube | |
| KR910005493Y1 (en) | Protector of thermocouple against errusion gas | |
| JPH037065Y2 (en) |