JPH041469Y2 - - Google Patents
Info
- Publication number
- JPH041469Y2 JPH041469Y2 JP13614885U JP13614885U JPH041469Y2 JP H041469 Y2 JPH041469 Y2 JP H041469Y2 JP 13614885 U JP13614885 U JP 13614885U JP 13614885 U JP13614885 U JP 13614885U JP H041469 Y2 JPH041469 Y2 JP H041469Y2
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- measuring
- container
- molten metal
- section
- 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
- 239000002184 metal Substances 0.000 claims description 19
- 229910052751 metal Inorganic materials 0.000 claims description 19
- 230000001681 protective effect Effects 0.000 claims description 3
- 238000012806 monitoring device Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 description 11
- 239000012212 insulator Substances 0.000 description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 238000005259 measurement Methods 0.000 description 6
- 238000009529 body temperature measurement Methods 0.000 description 5
- 229910000805 Pig iron Inorganic materials 0.000 description 4
- 239000004568 cement Substances 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 230000005496 eutectics Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 229910000809 Alumel Inorganic materials 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910001179 chromel Inorganic materials 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Landscapes
- Measuring Temperature Or Quantity Of Heat (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Description
【考案の詳細な説明】
技術分野
本考案は、溶融銑鉄、溶融鋼の如き溶融金属の
温度測定具に関し、特に、容器内に比較的少量の
溶融金属を注入してその温度を容器内に設けた熱
電対を用いて測定する温度測定具の改良に関す
る。[Detailed Description of the Invention] Technical Field The present invention relates to a device for measuring the temperature of molten metal such as molten pig iron and molten steel, and in particular, a device for measuring the temperature of molten metal by pouring a relatively small amount of molten metal into a container and setting the temperature in the container. This invention relates to improvements in temperature measuring instruments that measure temperature using thermocouples.
従来技術及びその問題点
従来のこの種の温度測定具は、熱電対を収容す
る容器に固定され、１回の温度測定にのみ供せら
れる所謂消耗型である。Prior Art and its Problems Conventional temperature measuring instruments of this type are of the so-called expendable type, which are fixed to a container containing a thermocouple and used for only one temperature measurement.
第４図は、現在一般的に使用されている消耗型
の温度測定具４０を示している。溶融金属を収容
するために、例えばシエルモールドで形成される
容器４１は、その底部にプラグ部を構成する２つ
の突起４２ａ，４２ｂと、貫通孔４３と、を備え
ている。貫通孔４３には、２つ穴碍管４４が挿入
され、例えばセメントによつて固定される。適当
な長さに切断され、先端部を溶接又は捩つて形成
される温接点４５を有する、クロメル・アルメル
熱電対線の如き熱電対線４６は、２つ穴碍管４４
に挿通され、２つの突起４２ａ，４２ｂに沿つて
それぞれ曲折される。熱電対線４６の曲折された
２本の先端部は、温接点４５によつて検出される
測定温度信号を取り出す電気接点４７ａ，４７ｂ
を構成する。 FIG. 4 shows a consumable temperature measuring device 40 that is currently commonly used. To accommodate molten metal, a container 41 formed by, for example, a shell mold is provided with two protrusions 42a and 42b constituting a plug portion and a through hole 43 at its bottom. A two-hole insulator tube 44 is inserted into the through hole 43 and fixed with, for example, cement. A thermocouple wire 46 such as a chromel-alumel thermocouple wire, which has a hot junction 45 formed by cutting an appropriate length and welding or twisting the tip, is inserted into a two-hole insulator tube 44.
and is bent along the two protrusions 42a and 42b. The two bent ends of the thermocouple wire 46 serve as electrical contacts 47a and 47b from which the measured temperature signal detected by the hot junction 45 is taken out.
Configure.
このように第４図に示された消耗型の温度測定
具４０は、周知のように、また第３図に関連して
後述するように、適当な測定用スタンドのレセプ
タクル部に嵌め込まれ、これによつて熱電対線４
６は、電気接点４７ａ，４７ｂ、測定用スタンド
内の補償導線を介して、温度指示記録計に接続さ
れる。従つて、容器４１内に注入された、例えば
炭素分を有する溶融銑鉄又は溶融鋼のような溶融
金属が凝固に至るまでの温度経過を連続的に測定
することができる。 The consumable temperature measuring device 40 shown in FIG. 4 is thus inserted into the receptacle portion of a suitable measuring stand, as is well known and will be described below in connection with FIG. By thermocouple wire 4
6 is connected to a temperature indicating recorder via electrical contacts 47a, 47b and a compensating lead wire in the measuring stand. Therefore, it is possible to continuously measure the temperature progress of the molten metal, such as molten pig iron or molten steel containing carbon, poured into the container 41 until it solidifies.
然るに、従来の温度測定具は、前述のように、
容器の内部に熱電対と碍管とが一体構造として固
定されて単に１回の使用にのみ供されるために不
経済であり、特に温度測定される溶融金属量が少
ない場合は、毎回当りの測定費用が割高となるこ
とは明らかである。 However, as mentioned above, conventional temperature measuring instruments
Since the thermocouple and the insulator tube are fixed as an integral structure inside the container and are used only once, it is uneconomical, and especially when the amount of molten metal to be measured is small, it is difficult to measure each time. It is clear that the cost will be relatively high.
考案の目的
本考案は、前述の如き情況に鑑みて、溶融金属
の経済的な温度測定を実現するために、熱電対の
再利用が可能な新規な構造を有する温度測定具を
提供することを目的としている。Purpose of the invention In view of the above-mentioned circumstances, the present invention aims to provide a temperature measuring instrument with a novel structure that allows thermocouples to be reused, in order to realize economical temperature measurement of molten metal. The purpose is
実施例の説明
第１図は、測定用スタンド１０にセツトされた
本考案の温度測定具の具体的構造と使用形態とを
示す断面図であり、第２図及び第３図はそれぞれ
本考案の温度測定具の容器部２０及び計測部３０
の具体的構造を示す断面図である。DESCRIPTION OF EMBODIMENTS FIG. 1 is a cross-sectional view showing the specific structure and usage pattern of the temperature measuring device of the present invention set on a measurement stand 10, and FIGS. Container part 20 and measuring part 30 of temperature measuring tool
FIG.
第２図に示されたように、容器部２０のカツプ
状容器２１は、一定量の溶融金属を収容し、例え
ば、一般に安価に成形できるシエルモールド等の
砂材、或いはセラミツク・フアイバーで形成され
る。また、初晶温度のみで共晶温度を不要とする
場合は、鉄、鋳鉄等の材料でも形成できる。容器
２１の容積、形状、壁厚等は、液相線、即ち目的
とする初晶温度又は共晶温度が得られるように、
容器の材質に合わせて決定すればよい。 As shown in FIG. 2, the cup-shaped container 21 of the container portion 20 accommodates a certain amount of molten metal and is generally made of sand material such as shell mold, which can be molded at low cost, or ceramic fiber. Ru. In addition, if the eutectic temperature is not required with only the primary crystal temperature, materials such as iron and cast iron can also be used. The volume, shape, wall thickness, etc. of the container 21 are determined so that the liquidus line, that is, the desired primary crystal temperature or eutectic temperature can be obtained.
It should be determined according to the material of the container.
容器２１の内底部には、一端封じの保護管２２
が貫通孔２３に耐火セメントの如き接着剤２４に
よつて固定されている。保護管２２は、熱伝達特
性の優れた不透明石英ガラス、バイコール等で作
成される。貫通孔２３は、計測部３０（第３図）
をセツトするために、計測部の形状に合わせて凸
状に形成される。 At the inner bottom of the container 21 is a protective tube 22 with one end sealed.
is fixed in the through hole 23 with an adhesive 24 such as refractory cement. The protection tube 22 is made of opaque quartz glass, Vycor, or the like, which has excellent heat transfer characteristics. The through hole 23 is connected to the measuring section 30 (Fig. 3).
It is formed into a convex shape to match the shape of the measuring section.
第３図に示されたように、シエルモールド、セ
メント、セラミツク等の材質により形成される基
材３１の中央部には貫通孔３２が設けられる。貫
通孔３２の上部には、２つ穴碍管３３が設けら
れ、またその下部には、硬質紙又は樹脂材等で形
成された円筒３４が設けられる。２つ穴碍管３３
及び円筒３４は共に、セメントの如き接着剤によ
つて基材３１に固定され、一体構造とされる。先
端を溶接又は捩つて形成された温接点３５を有す
る、例えば0.2〜0.5mm径のクロメル・アルメル熱
電対の線３６は、２つ穴碍管３３の上部に設けら
れた0.5mm程度の穴を介してその碍管に挿入され、
円筒３４の下部に設けられた切込み３７ａ，３７
ｂに沿つて外側に曲折される。熱電対線３６の曲
折された部分はそれぞれ電気的な接点３８ａ，３
８ｂを構成する。 As shown in FIG. 3, a through hole 32 is provided in the center of a base material 31 made of a material such as shell mold, cement, or ceramic. A two-hole insulator tube 33 is provided at the top of the through hole 32, and a cylinder 34 made of hard paper, resin material, or the like is provided at the bottom thereof. Two hole insulator pipe 33
Both the cylinder 34 and the cylinder 34 are fixed to the base material 31 with an adhesive such as cement to form an integral structure. For example, a wire 36 of a chromel/alumel thermocouple with a diameter of 0.2 to 0.5 mm, which has a hot junction 35 formed by welding or twisting the tip, is inserted through a hole of about 0.5 mm provided in the upper part of the two-hole insulator tube 33. is inserted into the insulator tube,
Cuts 37a, 37 provided at the bottom of the cylinder 34
It is bent outward along b. The bent portions of the thermocouple wire 36 serve as electrical contacts 38a and 3, respectively.
8b.
このように第２図に示された容器部２０及び第
３図に示された計測部３０は、計測時に、第１図
に示されたように組立てられる。即ち、計測部３
０の温接点３５及び２つ穴碍管３３は、容器部２
０の下方から挿入されて保護管２２内に収納さ
れ、計測部３０の基材３１は、容器部２０の貫通
孔２３に嵌め込まれる。尚、温接点３５は、正確
な温度測定を行うために保護管２２の頂部に接す
る程近くに位置決めすることが望ましい。 In this way, the container section 20 shown in FIG. 2 and the measuring section 30 shown in FIG. 3 are assembled as shown in FIG. 1 at the time of measurement. That is, the measuring section 3
0 hot junction 35 and two-hole insulator tube 33 are connected to the container part 2.
0 and is housed in the protective tube 22 , and the base material 31 of the measuring section 30 is fitted into the through hole 23 of the container section 20 . Note that it is desirable that the hot junction 35 be positioned so close that it contacts the top of the protection tube 22 in order to accurately measure the temperature.
組立てられた容器部２０及び計測部３０、即ち
温度測定具は、測定用スタンド１０にセツトされ
る。測定用スタンド１０の主要部は鉄材で形成さ
れ、パイプ状の支柱１１は、フランジ即ち底板１
２の中央部にねじ又は溶接固定されている。支柱
１１の上部には鉄製の支持部材１３が嵌め込ま
れ、例えば止めねじで支柱１１に固定されてい
る。支持部材１３の中央部には、熱電対線３６の
接点３８ａ，３８ｂに対応する接点（図示せず）
を備えたメス型のレセプタクル１４が設けられ、
これらの対応接点は測定信号出力用の端子１５
ａ，１５ｂにそれぞれ接続される。端子１５ａ，
１５ｂは、支柱１１及び枝管１６内に配線された
補償導線（図示せず）を介してソケツト１８に接
続され、このソケツトは更に温度指示記録計等の
適当なモニター装置に接続される。 The assembled container section 20 and measuring section 30, ie, the temperature measuring device, are set on the measuring stand 10. The main part of the measurement stand 10 is made of iron material, and the pipe-shaped support 11 has a flange, that is, a bottom plate 1.
It is fixed to the center part of 2 by screws or welding. A support member 13 made of iron is fitted into the upper part of the column 11, and is fixed to the column 11 with, for example, a set screw. At the center of the support member 13, there are contacts (not shown) corresponding to the contacts 38a and 38b of the thermocouple wire 36.
A female receptacle 14 is provided,
These corresponding contacts are terminals 15 for outputting measurement signals.
a and 15b, respectively. Terminal 15a,
15b is connected to a socket 18 via compensating conductors (not shown) routed within strut 11 and branch pipe 16, which socket is further connected to a suitable monitoring device such as a temperature indicator recorder.
このように測定用スタンド１０に温度測定具を
セツトした状態において、例えば、溶銑（溶融銑
鉄）を柄杓で汲み、スラグ等の不要物を除去した
後にそれを容器２１に充分注ぐと、熱接点３５に
よつて感知された溶銑温度が温度指示記録計によ
つて連続的に記録される。更に、容器２１内の溶
銑温度が下がるにつれて、初晶温度、また必要に
応じて共晶温度が記録され、この記録された温度
に基づいて、炭素当量、％炭素、％珪素等を適当
な数式を用いて求めることができる。 With the temperature measurement device set on the measurement stand 10 in this way, for example, if hot metal (molten pig iron) is scooped up with a ladle and poured sufficiently into the container 21 after removing unnecessary materials such as slag, the hot junction 35 The hot metal temperature sensed by is continuously recorded by a temperature indicator recorder. Furthermore, as the temperature of the hot metal in the vessel 21 decreases, the primary crystal temperature and, if necessary, the eutectic temperature are recorded, and based on this recorded temperature, carbon equivalent, % carbon, % silicon, etc. are calculated using appropriate mathematical formulas. It can be found using
温度測定の完了と共に溶銑は完全に凝固銑とな
り、この状態で容器部２０のみを計測部３０から
取り外す。これにより新たな容器部２０を再び計
測部３０にセツトすると、前述と同じ方法により
別の溶銑の温度測定が可能となり、従つて、計測
部３０の再利用が可能となる。 Upon completion of the temperature measurement, the hot metal completely becomes solidified pig iron, and in this state, only the container section 20 is removed from the measurement section 30. As a result, when a new container section 20 is set in the measuring section 30 again, the temperature of another hot metal can be measured by the same method as described above, and therefore the measuring section 30 can be reused.
効 果
容器部と計測部とを溶融金属の温度測定後に分
離可能にした本考案の温度測定具によれば、実際
には、熱電対線を備えた計測部を交換せずに、ま
た熱電対の起電力劣化を生ぜずに、５回の温度測
定が可能であり、更に消耗型の温度測定具による
従来法に比して毎回当りの温度測定比を１／２以
下にすることができた。Effects According to the temperature measuring device of the present invention, which allows the container part and the measuring part to be separated after measuring the temperature of molten metal, it is possible to actually remove the thermocouple without replacing the measuring part equipped with the thermocouple wire. It is possible to measure the temperature five times without causing deterioration of the electromotive force, and the temperature measurement ratio each time can be reduced to less than 1/2 compared to the conventional method using a consumable temperature measuring device. .
また、本考案によれば、消耗部材としての容器
を安価な鉄等の金属で製造すれば、温度測定具の
コストを更に低減させることができる。 Further, according to the present invention, if the container as a consumable member is manufactured from an inexpensive metal such as iron, the cost of the temperature measuring device can be further reduced.
第１図は、測定用スタンドにセツトされた本考
案の溶融金属の温度測定具の具体的構造及び使用
形態を示す断面図である。第２図は、本考案によ
る温度測定具の容器部の具体的構造を示す断面図
である。第３図は、本考案による温度測定具の計
測部の具体的構造を示す断面図である。第４図
は、従来の消耗型温度測定具の具体的構造を示す
断面図である。
符号説明、１０……測定用スタンド、２０……
容器部、２１……容器、２２……保護管、２３…
…貫通孔、３０……計測部、３１……基材、３２
……貫通孔、３３……２つ穴碍管、３４……円
筒、３５……温接点、３６……熱電対線、３７
ａ，３７ｂ……切込み、３８ａ，３８ｂ……接
点。
FIG. 1 is a sectional view showing the specific structure and usage pattern of the molten metal temperature measuring device of the present invention set on a measuring stand. FIG. 2 is a sectional view showing the specific structure of the container portion of the temperature measuring device according to the present invention. FIG. 3 is a sectional view showing the specific structure of the measuring section of the temperature measuring device according to the present invention. FIG. 4 is a sectional view showing the specific structure of a conventional consumable temperature measuring device. Explanation of symbols, 10... Measuring stand, 20...
Container part, 21... Container, 22... Protection tube, 23...
...Through hole, 30...Measuring section, 31...Base material, 32
...Through hole, 33...Two hole insulator tube, 34...Cylinder, 35...Hot junction, 36...Thermocouple wire, 37
a, 37b...notch, 38a, 38b...contact.
Claims (1)
ンドにセツトされる比較的少量の溶融金属のため
の温度測定具において、前記溶融金属の温度を検
出する熱電対を備えた計測部と、前記溶融金属を
収容し且つ前記熱電対を前記溶融金属から保護す
る保護管とを備えた容器部と、から成り、前記計
測部が繰返し使用できるように、前記容器部を前
記計測部から取外し可能に構成したことを特徴と
する温度測定具。 A temperature measuring device for measuring a relatively small amount of molten metal, which is set on a measuring stand electrically connected to a monitoring device, comprising: a measuring section equipped with a thermocouple for detecting the temperature of the molten metal; and a protective tube for accommodating the thermocouple and protecting the thermocouple from the molten metal, and the container section is configured to be removable from the measuring section so that the measuring section can be used repeatedly. A temperature measuring device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13614885U JPH041469Y2 (en) | 1985-09-05 | 1985-09-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13614885U JPH041469Y2 (en) | 1985-09-05 | 1985-09-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6244228U JPS6244228U (en) | 1987-03-17 |
| JPH041469Y2 true JPH041469Y2 (en) | 1992-01-20 |
Family
ID=31038996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13614885U Expired JPH041469Y2 (en) | 1985-09-05 | 1985-09-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH041469Y2 (en) |
-
1985
- 1985-09-05 JP JP13614885U patent/JPH041469Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6244228U (en) | 1987-03-17 |
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