JPH0156512B2 - - Google Patents
Info
- Publication number
- JPH0156512B2 JPH0156512B2 JP24914487A JP24914487A JPH0156512B2 JP H0156512 B2 JPH0156512 B2 JP H0156512B2 JP 24914487 A JP24914487 A JP 24914487A JP 24914487 A JP24914487 A JP 24914487A JP H0156512 B2 JPH0156512 B2 JP H0156512B2
- Authority
- JP
- Japan
- Prior art keywords
- furnace wall
- induction heating
- cermet
- silicide
- heated
- 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
- 238000010438 heat treatment Methods 0.000 claims description 29
- 230000006698 induction Effects 0.000 claims description 25
- 239000011195 cermet Substances 0.000 claims description 16
- 229910021332 silicide Inorganic materials 0.000 claims description 15
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 claims description 15
- 239000000919 ceramic Substances 0.000 claims description 8
- YXTPWUNVHCYOSP-UHFFFAOYSA-N bis($l^{2}-silanylidene)molybdenum Chemical compound [Si]=[Mo]=[Si] YXTPWUNVHCYOSP-UHFFFAOYSA-N 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 229910021343 molybdenum disilicide Inorganic materials 0.000 claims description 5
- 239000000523 sample Substances 0.000 claims description 4
- 229910000953 kanthal Inorganic materials 0.000 description 9
- 238000012360 testing method Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910010293 ceramic material Inorganic materials 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 238000004663 powder metallurgy Methods 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910016006 MoSi Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 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
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Furnace Details (AREA)
- General Induction Heating (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は珪化物サーメツトを主材とする炉壁を
誘導加熱により加熱して炉の熱源とした誘導加熱
炉に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to an induction heating furnace which uses a furnace wall mainly made of silicide cermet as a heat source by heating it by induction heating.
（従来の技術）
高温度雰囲気における諸材料の試験のために、
高い温度を提供する炉が要求されている。(Prior art) For testing various materials in a high temperature atmosphere,
Furnaces that provide high temperatures are required.
近時、新しいセラミツクス材料の物理的な特性
を高温（例えば1600℃以上）雰囲気内で簡単に測
定したいという要請が高まつている。 Recently, there has been an increasing demand for the ability to easily measure the physical properties of new ceramic materials in high-temperature (for example, 1600°C or higher) atmospheres.
セラミツクス材料を加熱する場合、電気抵抗熱
炉や赤外線加熱炉等が考えられていた。 When heating ceramic materials, electric resistance heating furnaces, infrared heating furnaces, etc. have been considered.
炉の材料として、一般的に考えられる耐熱合金
でも1200℃の雰囲気は酸化および軟化が発生す
る。 Even heat-resistant alloys commonly considered as materials for furnaces oxidize and soften in an atmosphere of 1200°C.
代表的な珪化物サーメツトである２珪化モリブ
デンを主材としてこれに金属を添加したサーメツ
トは直接通電の発熱体（セラミツクスヒータ：例
えば特開昭59―14392、同146184，219887号公
報））として使用されている。 Cermets made by adding metals to molybdenum disilicide, which is a typical silicide cermet, are used as heating elements that are directly energized (ceramic heaters: for example, Japanese Patent Application Laid-open Nos. 59-14392, 146184, and 219887). has been done.
２珪化モリブデンを主材としてこれに金属を添
加したサーメツトの発熱体はカンタルと言う商品
名（ハルスタハーマー・スウエーデン・カンタ
ル・エレクトロ・ヒート社の商品名）で販売され
ている。 A cermet heating element made of molybdenum disilicide as its main material with metal added thereto is sold under the trade name Kanthal (a trade name of Halsterhamer Sweden Kanthal Electro-Heat).
そして、カンタルそれ自体は1800℃程度の温度
を提供することができ、その状態においても、良
好な物理的な特性と耐化学性を備えている。 And kanthal itself can provide temperatures of around 1800°C, and even in that state it has good physical properties and chemical resistance.
（発明が解決しようとする問題点）
しかし、前記カンタルを直接通電の発熱体とし
て炉を形成しようとすると、カンタルへの給電手
段や炉壁その他の構成部分を含めて装置が極めて
大掛りになる。(Problem to be Solved by the Invention) However, if a furnace is constructed using the Kanthal as a heating element that is directly energized, the equipment will be extremely large, including the power supply means for the Kanthal, the furnace wall, and other components. .
また炉壁自体をカンタルで形成しこれに直接通
電しようとしても同様である。 The same problem occurs even if the furnace wall itself is made of Kanthal and an attempt is made to directly apply electricity to it.
本発明の目的は、炉壁自体を珪化物サーメツト
で形成しこれを誘導加熱することにより発熱体と
し、炉心の温度を極めて高い温度にすることがで
きる誘導加熱炉を提供することにある。 An object of the present invention is to provide an induction heating furnace in which the furnace wall itself is made of silicide cermet, which is used as a heating element by induction heating, and which can raise the temperature of the core to an extremely high temperature.
（問題点を解決するための手段）
前記目的を達成するために、本発明による誘導
加熱炉は、中心部に被加熱物が配置される珪化物
サーメツトの円筒状の炉壁と、前記円筒状の炉壁
の外周に配置された誘導コイルをもつ誘導加熱手
段から構成されている。(Means for Solving the Problems) In order to achieve the above object, an induction heating furnace according to the present invention has a cylindrical furnace wall made of silicide cermet in which an object to be heated is arranged in the center, and It consists of an induction heating means with an induction coil placed around the outer periphery of the furnace wall.
前記珪化物サーメツトとしては２珪化モリブデ
ンに金属を添加し粉末治金法で製造されたものが
適している。 As the silicide cermet, one manufactured by adding a metal to molybdenum disilicide by a powder metallurgy method is suitable.
前記珪化物サーメツトの円筒状の炉壁には中心
に挿入された被加熱物の表面温度を測定するため
の窓を設けておくと放射温度計等による被加熱物
の表面温度の測定が可能である。 If a window is provided in the cylindrical furnace wall of the silicide cermet to measure the surface temperature of the heated object inserted in the center, it is possible to measure the surface temperature of the heated object with a radiation thermometer or the like. be.
前記珪化物サーメツトの円筒状の炉壁には中心
に挿入された被加熱物の形状の変形を検出するた
めの触子を挿入するための窓を設けておき、被加
熱物の形状の変形を測定することができる。 The cylindrical furnace wall of the silicide cermet is provided with a window for inserting a probe into the center to detect the deformation of the shape of the object to be heated. can be measured.
（実施例）
以下、図面等を参照して、本発明をさらに詳し
く説明する。(Example) The present invention will be described in more detail below with reference to the drawings and the like.
第１図は、本発明による誘導加熱炉の実施例を
示す断面図である。 FIG. 1 is a sectional view showing an embodiment of an induction heating furnace according to the present invention.
第２図、第３図および第４図はそれぞれ前記誘
導炉の炉壁の平面図、正面図および側面図であ
る。円筒状の炉壁１０は前述したカンタル社のカ
ンタル・スーパーを用いる。 FIG. 2, FIG. 3, and FIG. 4 are a plan view, a front view, and a side view of the furnace wall of the induction furnace, respectively. The cylindrical furnace wall 10 is made of the aforementioned Kanthal Super from Kanthal.
カンタル・スーパーは、２珪化モリブデン
（MoSi2）に鉄・クロム・アルミを添加し、粉末
治金法で製造した珪化物サーメツトであり、金属
抵抗発熱体として極めて優れた特性を示す。 Kanthal Super is a silicide cermet made by adding iron, chromium, and aluminum to molybdenum disilicide (MoSi 2 ) using a powder metallurgy method, and exhibits extremely excellent properties as a metal resistance heating element.
本発明では前記珪化物サーメツトの円筒状の炉
壁１０に直接通電することなく誘導加熱される炉
壁として使用する。 In the present invention, the silicide cermet cylindrical furnace wall 10 is used as a furnace wall that is heated by induction without directly applying electricity.
円筒状の炉壁１０は、第２〜４図に詳細に示さ
れているように、円筒を切断して形成した２つの
半円筒から構成されている。 The cylindrical furnace wall 10 is composed of two semi-cylinders formed by cutting a cylinder, as shown in detail in FIGS. 2-4.
この実施例では、円筒状の炉壁１０は、高さ55
mm、外径32mm、内径18mmの円筒をカツタで切断し
たものである。 In this example, the cylindrical furnace wall 10 has a height of 55
A cylinder with an outer diameter of 32 mm and an inner diameter of 18 mm was cut with a cutter.
切断線に沿つて直径７mm程度の触子挿入用の孔
１０ａ，１０ｂが設けられている。 Holes 10a and 10b for inserting tentacles each having a diameter of about 7 mm are provided along the cutting line.
また一方の半円筒に放射温度計用の直径６mm程
度の孔１０ｃが設けられている。 Further, one half cylinder is provided with a hole 10c having a diameter of about 6 mm for a radiation thermometer.
そしてこれらは、底部中心に貫通孔をもつ炉壁
支持容器２に挿入され、中心に貫通孔をもつ炉壁
支持容器蓋３がかぶせられている。 These are inserted into a furnace wall support container 2 having a through hole in the center of the bottom, and covered with a furnace wall support container lid 3 having a through hole in the center.
炉壁支持容器２の外周には高周波誘導加熱コイ
ル４が６段にわたり設けられている。 Six stages of high-frequency induction heating coils 4 are provided around the outer periphery of the furnace wall support vessel 2 .
この高周波誘導加熱コイル４には図示しない高周
波発生源から、例えば25KHzの高周波10〜20KW
が加えられる。This high frequency induction heating coil 4 receives a high frequency of 10 to 20 KW of 25 KHz from a high frequency generation source (not shown).
is added.
この高周波電力により、金属的な特性を示す前
記炉壁１０が加熱され、中心に配置されているセ
ラミツクステストピース１が前記炉壁１０の放射
熱で加熱される。 This high-frequency power heats the furnace wall 10, which exhibits metallic characteristics, and the ceramic test piece 1 placed at the center is heated by the radiant heat of the furnace wall 10.
なおこの加熱の雰囲気は大気であつても、不活
性ガス雰囲気であつても良い。 Note that the atmosphere for this heating may be the air or an inert gas atmosphere.
セラミツクステストピース１は固定側グリツプ
６と移動側グリツプ７とで炉の中心を貫通するよ
うに支持されており、移動側グリツプ７を移動さ
せてセラミツクステストピース１に引延し力を印
加することができる。 The ceramic test piece 1 is supported by a fixed grip 6 and a moving grip 7 so as to penetrate through the center of the furnace, and the moving grip 7 is moved to apply a stretching force to the ceramic test piece 1. Can be done.
セラミツクステストピース１の表面の温度は、
放射温度計により測定される。 The temperature of the surface of ceramic test piece 1 is
Measured by radiation thermometer.
外形の変形は前記触子挿入用の孔１０ａ，１０
ｂを介して外部から接触させられる図示しない触
子の移動量により測定することができる。 The deformation of the outer shape is caused by the tentacle insertion holes 10a, 10.
It can be measured by the amount of movement of a contactor (not shown) that is brought into contact with the outside via b.
（発明の効果）
以上詳しく説明したように、本発明による誘導
加熱炉は、中心部に被加熱物が配置される珪化物
サーメツトの円筒状の炉壁を前記円筒状の炉壁の
外周に配置された誘導コイルで誘導加熱するよう
に構成されている。(Effects of the Invention) As explained in detail above, the induction heating furnace according to the present invention has a cylindrical furnace wall made of silicide cermet in which the object to be heated is placed in the center, and a cylindrical furnace wall made of silicide cermet is arranged around the outer periphery of the cylindrical furnace wall. It is configured to perform induction heating with an induction coil.
したがつて、小形で極めて簡単な構造により、
炉心の温度を極めて高い温度、例えば1600℃以
上、にすることができる。 Therefore, due to its small size and extremely simple structure,
The core temperature can be raised to extremely high temperatures, for example 1600°C or higher.
本発明による誘導加熱炉の利用例をセラミツク
スの高温度試験の例を上げて説明したが、他の材
料の高温度試験にも同様に利用できる。 Although an example of the use of the induction heating furnace according to the present invention has been described using an example of high-temperature testing of ceramics, it can be similarly used for high-temperature testing of other materials.
第１図は、本発明による誘導加熱炉の実施例を
示す断面図である。第２図、第３図および第４図
はそれぞれ前記誘導炉の炉壁の平面図、正面図お
よび側面図である。
１…セラミツクステストピース、２…炉壁支持
容器、３…炉壁支持容器蓋、４…高周波コイル、
６…固定側グリツプ、７…移動側グリツプ、１０
…円筒状の炉壁、１０ａ，１０ｂ…触子挿入用の
孔、１０ｃ…放射温度計用の孔。
FIG. 1 is a sectional view showing an embodiment of an induction heating furnace according to the present invention. FIG. 2, FIG. 3, and FIG. 4 are a plan view, a front view, and a side view of the furnace wall of the induction furnace, respectively. 1... Ceramics test piece, 2... Furnace wall support container, 3... Furnace wall support container lid, 4... High frequency coil,
6... Fixed side grip, 7... Moving side grip, 10
...Cylindrical furnace wall, 10a, 10b...hole for inserting a probe, 10c...hole for a radiation thermometer.
Claims (1)
ツトの円筒状の炉壁と、前記円筒状の炉壁の外周
に配置された誘導コイルをもつ誘導加熱手段から
構成した誘導加熱炉。 ２ 前記珪化物サーメツトは２珪化モリブデンに
金属を添加したものである特許請求の範囲第１項
記載の誘導加熱炉。 ３ 前記珪化物サーメツトの円筒状の炉壁には中
心に挿入された被加熱試料の表面温度を測定する
ための窓が設けられている特許請求の範囲第１項
記載の誘導加熱炉。 ４ 前記珪化物サーメツトの円筒状の炉壁には中
心に挿入された被加熱物の形状の変形を検出する
ための触子を挿入するための窓が設けられている
特許請求の範囲第１項記載の誘導加熱炉。 ５ 前記被加熱物はセラミツクスである特許請求
の範囲第１項記載の誘導加熱炉。[Scope of Claims] 1. An induction heating means comprising a cylindrical furnace wall made of silicide cermet in which an object to be heated is arranged in the center, and an induction coil arranged around the outer periphery of the cylindrical furnace wall. Induction heating furnace. 2. The induction heating furnace according to claim 1, wherein the silicide cermet is made by adding a metal to molybdenum disilicide. 3. The induction heating furnace according to claim 1, wherein the cylindrical furnace wall of the silicide cermet is provided with a window for measuring the surface temperature of the sample to be heated inserted into the center. 4. Claim 1, wherein the cylindrical furnace wall of the silicide cermet is provided with a window for inserting a probe for detecting the deformation of the shape of the heated object inserted in the center. The induction heating furnace described. 5. The induction heating furnace according to claim 1, wherein the object to be heated is ceramics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24914487A JPH0193087A (en) | 1987-10-02 | 1987-10-02 | Induction heating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24914487A JPH0193087A (en) | 1987-10-02 | 1987-10-02 | Induction heating furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0193087A JPH0193087A (en) | 1989-04-12 |
| JPH0156512B2 true JPH0156512B2 (en) | 1989-11-30 |
Family
ID=17188576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24914487A Granted JPH0193087A (en) | 1987-10-02 | 1987-10-02 | Induction heating furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0193087A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9874100B2 (en) | 2013-02-22 | 2018-01-23 | Mitsubishi Heavy Industries, Ltd. | Turbine rotor and turbocharger having the turbine rotor |
-
1987
- 1987-10-02 JP JP24914487A patent/JPH0193087A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0193087A (en) | 1989-04-12 |
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