JPH0570709B2 - - Google Patents
Info
- Publication number
- JPH0570709B2 JPH0570709B2 JP63312349A JP31234988A JPH0570709B2 JP H0570709 B2 JPH0570709 B2 JP H0570709B2 JP 63312349 A JP63312349 A JP 63312349A JP 31234988 A JP31234988 A JP 31234988A JP H0570709 B2 JPH0570709 B2 JP H0570709B2
- Authority
- JP
- Japan
- Prior art keywords
- furnace
- heater
- resistant
- soot
- anode
- 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 - Lifetime
Links
- 238000005255 carburizing Methods 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 11
- 239000011810 insulating material Substances 0.000 claims description 8
- 230000003647 oxidation Effects 0.000 claims description 7
- 238000007254 oxidation reaction Methods 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 230000005855 radiation Effects 0.000 claims description 3
- 239000004071 soot Substances 0.000 description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 229910002804 graphite Inorganic materials 0.000 description 5
- 239000010439 graphite Substances 0.000 description 5
- 239000000919 ceramic Substances 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は、イオン浸炭炉に関するものである。[Detailed description of the invention] (Industrial application field) The present invention relates to an ion carburizing furnace.
（従来の技術）
従来、前記イオン浸炭炉は、第２図に示すよう
に、耐真空二重水冷構造の炉本体１０内にグラフ
アイト製のインナーチヤンバー１１を設け、その
内側壁および天井部に陽極としても機能するグラ
フアイトヒータ１２を、また底部に陰極としても
機能する処理材載置用グラフアイト炉床１３を配
設した構成となつている。なお、前記路床１３は
炉本体１０にセラミツク等の絶縁材からなる脚部
１３ａおよび保持部材１４を介して支持されてい
る。(Prior Art) Conventionally, as shown in FIG. 2, the ion carburizing furnace has an inner chamber 11 made of graphite provided in a furnace body 10 having a vacuum-resistant double water-cooled structure, and an inner chamber 11 made of graphite. A graphite heater 12, which also functions as an anode, is disposed at the bottom, and a graphite hearth 13 for placing a processing material, which also functions as a cathode, is disposed at the bottom. The roadbed 13 is supported by the furnace body 10 via leg portions 13a and holding members 14 made of an insulating material such as ceramic.
そして、処理材Ｗを炉床１３上に載置して、ヒ
ータ１２により処理材Ｗを所定温度に昇温した後
炉内を真空とし、たとえば、メタンガス等の浸炭
ガスを炉内に注入するとともに、前記ヒータ１２
を陽極とする一方、炉床（処理材）１３を陰極と
してグロー放電を行つて封入浸炭ガスをイオン化
して処理材Ｗを浸炭するものである。 Then, the treated material W is placed on the hearth 13, and after the temperature of the treated material W is raised to a predetermined temperature by the heater 12, the inside of the furnace is evacuated, and a carburizing gas such as methane gas is injected into the furnace. , the heater 12
is used as an anode, and the hearth (processing material) 13 is used as a cathode to perform glow discharge to ionize the enclosed carburizing gas and carburize the processing material W.
（発明が解決しようとする課題）
ところで、前記イオン浸炭を続けて行くと、炉
内構造物に煤が付着堆積する。(Problems to be Solved by the Invention) By the way, when the ion carburization is continued, soot adheres and accumulates on the furnace internal structure.
そして、特に、炉床１３の脚部１３ａ及び脚部
１３ａの基部に煤が堆積すると、絶縁機能を失う
ことになり、十分なグロー放電を行うことができ
なくなる。 In particular, if soot accumulates on the legs 13a of the hearth 13 and the base of the legs 13a, the insulating function will be lost, making it impossible to perform sufficient glow discharge.
したがつて、煤を除去する必要がある。 Therefore, it is necessary to remove soot.
この付着堆積した煤の除去方法としては、炉本
体１０内に空気を導入してバーンアウトするのが
最適である。しかしながら、炉内構造物であるイ
ンナーチヤンバー１１、ヒータ１２、炉床１３が
いずれもグラフアイトからなり、バーンアウトす
るの焼損するためバーンアウトは採用することが
できず、手作業で煤の除去を行つているのが現状
で、非常に生産性が悪いという問題点を有してい
た。また、炉本体１０内にインナーチヤンバー１
１を配設するため、炉の構造が複雑になるという
問題点をも有する。 The best way to remove this deposited soot is to introduce air into the furnace body 10 and burn it out. However, the inner chamber 11, the heater 12, and the hearth 13, which are the internal structures of the furnace, are all made of graphite, and burnout cannot be used because burnout causes burnout, and soot is removed manually. Currently, the company is currently doing this, which has the problem of extremely low productivity. In addition, an inner chamber 1 is provided within the furnace body 10.
1, the structure of the furnace becomes complicated.
本発明は、前記従来の問題点を除去するために
なされたものである。 The present invention has been made to eliminate the above-mentioned conventional problems.
（課題を解決するための手段）
本発明は、前記課題を解決するために、陰極と
なる材料載置部材および陽極兼用ヒータを備えた
イオン浸炭炉において、前記炉の炉殻に耐酸化性
断熱材を内張りするとともに、前記材料載置部材
を耐熱鋼で構成する一方、前記陽極兼用ヒータを
金属製輻射管としたものである。(Means for Solving the Problems) In order to solve the problems described above, the present invention provides an ion carburizing furnace equipped with a material placement member serving as a cathode and a heater that also serves as an anode, in which the furnace shell is provided with oxidation-resistant insulation. The material mounting member is made of heat-resistant steel, and the anode heater is a metal radiant tube.
（実施例）
つぎに、本発明の一実施例を第１図にしたがつ
て説明する。(Example) Next, an example of the present invention will be described with reference to FIG.
図において、１は炉本体で、耐真空性炉殻２の
内面にセラミツクフアイバー等の耐酸化性断熱材
３を内張りしたものである。 In the figure, 1 is a furnace body, which has a vacuum-resistant furnace shell 2 lined with an oxidation-resistant heat insulating material 3 such as ceramic fiber.
４は耐酸化性、耐熱性鋼であるアロイ製の材料
載置部材である炉床で、この炉床４は、前記炉殻
２にセラミツク等の絶縁材からなる脚部４ａおよ
び保持部材５を介して支持されるとともに、その
基部は前記断熱材３中に埋設状態となつている。 Reference numeral 4 denotes a hearth which is a material mounting member made of alloy, which is oxidation-resistant and heat-resistant steel. It is supported through the heat insulating material 3, and its base is embedded in the heat insulating material 3.
６は炉本体１の天井部から下方に垂下するよう
に設けた電熱エレメントを内蔵した金属製輻射管
である。 Reference numeral 6 denotes a metal radiation tube having a built-in electric heating element, which is provided so as to hang downward from the ceiling of the furnace body 1.
前記炉床４は陰極として、ヒータである金属製
輻射管６は陽極としても機能することは従来のも
のと同様である。 As in the conventional case, the hearth 4 functions as a cathode, and the metal radiation tube 6, which is a heater, also functions as an anode.
なお、浸炭方法は従来と同様であるため説明を
省略する。 It should be noted that the carburizing method is the same as the conventional method, so a description thereof will be omitted.
前記構成からなるため、いま、浸炭作業を続け
ているうちに、断熱材３の内面あるいは炉内構造
物の表面に煤が付着堆積し、煤を除去する時期が
来ると、炉本体内に空気を導入し、ヒータ６を加
熱して煤をバーンアウトすることにより効率的に
除去するものである。 Due to the above structure, as the carburizing work continues, soot adheres and accumulates on the inner surface of the heat insulating material 3 or the surface of the furnace internal structure, and when the time comes to remove the soot, air will be trapped inside the furnace body. The soot is efficiently removed by introducing soot and heating the heater 6 to burn out the soot.
（発明の効果）
以上の説明で明らかなように、本発明にかかる
イオン浸炭炉によれば、炉本体内面を耐酸化性の
断熱材で内張りし、炉床を耐酸化性耐熱鋼、ヒー
タを金属性輻射管、すなわち、炉内断熱材を含む
炉内構造物を耐酸化生物質で構成したため、従来
不可能であつたバーンアウトが可能となり、煤を
容易に除去することができる。(Effects of the Invention) As is clear from the above explanation, according to the ion carburizing furnace according to the present invention, the inner surface of the furnace body is lined with an oxidation-resistant heat insulating material, the hearth is made of oxidation-resistant heat-resistant steel, and the heater is Since the metal radiant tube, that is, the furnace internal structure including the furnace insulation material, is made of an oxidation-resistant material, burnout, which was previously impossible, is possible, and soot can be easily removed.
また、処理室は、炉本体の炉殻に断熱材を直接
内張して、従来のインナーチヤンバーをなくした
ため、炉構造も簡素なものとすることができる。 In addition, since the processing chamber is directly lined with a heat insulating material on the furnace shell of the furnace body, eliminating the conventional inner chamber, the furnace structure can be simplified.
第１図は本発明にかかるイオン浸炭炉の説明用
断面図で、第２図は従来のイオン浸炭炉の説明用
断面図である。
１……炉本体、３……断熱材、４……炉床、４
ａ……脚部、６……エレクトロチユーブヒータ。
FIG. 1 is an explanatory sectional view of an ion carburizing furnace according to the present invention, and FIG. 2 is an explanatory sectional view of a conventional ion carburizing furnace. 1... Furnace body, 3... Insulation material, 4... Hearth, 4
a...Legs, 6...Electrotube heater.
Claims (1)
タを備えたイオン浸炭炉において、前記炉の炉殻
に耐酸化性断熱材を内張りするとともに、前記材
料載置部材を耐熱鋼で構成する一方、前記陽極兼
用ヒータを金属製輻射管としたことを特徴とする
イオン浸炭炉。1. In an ion carburizing furnace equipped with a material mounting member serving as a cathode and a heater that also serves as an anode, the furnace shell of the furnace is lined with an oxidation-resistant heat insulating material, and the material mounting member is constructed of heat-resistant steel; An ion carburizing furnace characterized by using a metal radiation tube as a heater that also serves as an anode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31234988A JPH02156065A (en) | 1988-12-09 | 1988-12-09 | Ion carburization furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31234988A JPH02156065A (en) | 1988-12-09 | 1988-12-09 | Ion carburization furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02156065A JPH02156065A (en) | 1990-06-15 |
| JPH0570709B2 true JPH0570709B2 (en) | 1993-10-05 |
Family
ID=18028175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31234988A Granted JPH02156065A (en) | 1988-12-09 | 1988-12-09 | Ion carburization furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02156065A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6222878B2 (en) | 2014-04-23 | 2017-11-01 | 株式会社Ihi | Carburizing equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5170135A (en) * | 1974-12-16 | 1976-06-17 | Honda Motor Co Ltd | IONCHITSUKASHORISOCHI |
| JPS527337A (en) * | 1975-07-08 | 1977-01-20 | Fuji Electronics Co Ltd | Ion surface treatment of metal |
| JPS5247532A (en) * | 1975-10-15 | 1977-04-15 | Chubu Denki Seisakushiyo Kk | Improvement in industrial treating means by glow discharge |
| JPS5282641A (en) * | 1975-12-29 | 1977-07-11 | Kawasaki Heavy Ind Ltd | Ionitriding |
| JPS5437046A (en) * | 1977-08-29 | 1979-03-19 | Mitsubishi Heavy Ind Ltd | Apparauts for assembling pipe with intermediate flange |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5294423U (en) * | 1976-01-09 | 1977-07-14 | ||
| JPS5294424U (en) * | 1976-01-09 | 1977-07-14 |
-
1988
- 1988-12-09 JP JP31234988A patent/JPH02156065A/en active Granted
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5170135A (en) * | 1974-12-16 | 1976-06-17 | Honda Motor Co Ltd | IONCHITSUKASHORISOCHI |
| JPS527337A (en) * | 1975-07-08 | 1977-01-20 | Fuji Electronics Co Ltd | Ion surface treatment of metal |
| JPS5247532A (en) * | 1975-10-15 | 1977-04-15 | Chubu Denki Seisakushiyo Kk | Improvement in industrial treating means by glow discharge |
| JPS5282641A (en) * | 1975-12-29 | 1977-07-11 | Kawasaki Heavy Ind Ltd | Ionitriding |
| JPS5437046A (en) * | 1977-08-29 | 1979-03-19 | Mitsubishi Heavy Ind Ltd | Apparauts for assembling pipe with intermediate flange |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02156065A (en) | 1990-06-15 |
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