JPH02156065A - Ion carburization furnace - Google Patents
Ion carburization furnaceInfo
- Publication number
- JPH02156065A JPH02156065A JP31234988A JP31234988A JPH02156065A JP H02156065 A JPH02156065 A JP H02156065A JP 31234988 A JP31234988 A JP 31234988A JP 31234988 A JP31234988 A JP 31234988A JP H02156065 A JPH02156065 A JP H02156065A
- Authority
- JP
- Japan
- Prior art keywords
- furnace
- soot
- insulating material
- furnace body
- heat insulating
- 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.)
- Granted
Links
- 239000000463 material Substances 0.000 claims abstract description 13
- 239000011810 insulating material Substances 0.000 claims abstract description 11
- 230000003647 oxidation Effects 0.000 claims abstract description 9
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 9
- 239000002184 metal Substances 0.000 claims abstract description 7
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 6
- 239000010959 steel Substances 0.000 claims abstract description 6
- 230000005855 radiation Effects 0.000 claims abstract description 5
- 238000005255 carburizing Methods 0.000 claims description 12
- 239000004071 soot Substances 0.000 abstract description 16
- 239000000919 ceramic Substances 0.000 abstract description 4
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 239000000956 alloy Substances 0.000 abstract description 2
- 229910045601 alloy Inorganic materials 0.000 abstract description 2
- 239000000835 fiber Substances 0.000 abstract description 2
- 230000008021 deposition Effects 0.000 abstract 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910002804 graphite Inorganic materials 0.000 description 4
- 239000010439 graphite Substances 0.000 description 4
- 239000012774 insulation material Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
Landscapes
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
Abstract
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内にグラファイト製のイン
ナーチャンバー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ァイトヒータ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ァイト
炉床１３を配設した構成となっている。なお、前記炉床
１３は炉本体１０にセラミッ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 in a furnace body 10 having a vacuum-resistant double water-cooled structure, and has an anode on its inner wall and ceiling. The structure includes a graphite heater 12 that also functions as a cathode, and a graphite hearth 13 for placing a processing material on the bottom that also functions as a cathode. The hearth 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って封入浸炭ガ
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 the heater 12
After heating the treated material W to a predetermined temperature, the inside of the furnace is evacuated, and a carburizing gas such as methane gas is injected into the furnace.While the heater 12 is used as an anode, the hearth (treated material) 13 is Glow discharge is performed as a cathode to ionize the enclosed carburizing gas and carburize the treated 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.
したがって、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σ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ャンバー１１
、ヒータ１２、炉床１３がいずれもグラファイトからな
り、バーンアウトすると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っているの
が現状で、非常に生産性が悪いという問題点を育してい
た。また、炉本体１０内にインナーチャンバー１１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。As a method for removing the deposited soot σ, it is optimal to introduce air into the furnace body 10 and perform burnout. However, the inner chamber 11, which is a reactor internal structure,
, the heater 12, and the hearth 13 are all made of graphite, and burnout cannot be used because they will be damaged by burnout.Currently, soot is removed by hand, which is extremely inefficient. I was developing the problem of being bad. Furthermore, since the inner chamber 11 is disposed within the furnace body 10, there is also a problem that 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
記陽極酸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 anodic acid heater is a metal radiant tube.
（実施例）
つぎに、本発明の一実施例を第１図にしたがうて説明す
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
ラミックファイバー等の耐酸化性断熱材３を内張すした
ものである。In the figure, reference numeral 1 denotes 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にセラミック
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
状態となっている。Reference numeral 4 denotes a hearth, which is a material mounting member made of alloy, which is oxidation-resistant and heat-resistant steel. The base portion thereof 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
。The hearth 4 serves as a cathode and has a metal radiation tube 6 which is a heater.
As in the conventional case, it 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、本発明にががるイオン浸
炭炉によれば、炉本体内面を耐酸化性の断熱材で内張す
し、炉床を耐酸化性耐熱鋼、ヒータを金属製輻射管、す
なわち、炉内断熱材を含む炉内構造物を耐酸化性物質で
構成したため、従来不可能であっ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, and the hearth is made of oxidation- and heat-resistant steel. Since the heater is made of a metal radiant tube, and the furnace internal structure including the furnace insulation material is made of 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
、従来のインナーチャ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 also 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。
■・・・炉本体、３・・・断熱材、４・・・炉床、４ａ
・・・脚部、６・・・エレクトロチューブヒータ。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. ■... Furnace body, 3... Insulation material, 4... Hearth, 4a
...Legs, 6...Electro tube heater.
Claims (1)
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 in that the anode-cum-heater is a metal radiation tube.
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 true JPH02156065A (en) | 1990-06-15 |
| JPH0570709B2 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) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9926621B2 (en) | 2014-04-23 | 2018-03-27 | Ihi Corporation | Carburizing device |
Citations (7)
| 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 |
| JPS5294423U (en) * | 1976-01-09 | 1977-07-14 | ||
| JPS5294424U (en) * | 1976-01-09 | 1977-07-14 | ||
| JPS5437046A (en) * | 1977-08-29 | 1979-03-19 | Mitsubishi Heavy Ind Ltd | Apparauts for assembling pipe with intermediate flange |
-
1988
- 1988-12-09 JP JP31234988A patent/JPH02156065A/en active Granted
Patent Citations (7)
| 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 |
| JPS5294423U (en) * | 1976-01-09 | 1977-07-14 | ||
| JPS5294424U (en) * | 1976-01-09 | 1977-07-14 | ||
| JPS5437046A (en) * | 1977-08-29 | 1979-03-19 | Mitsubishi Heavy Ind Ltd | Apparauts for assembling pipe with intermediate flange |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9926621B2 (en) | 2014-04-23 | 2018-03-27 | Ihi Corporation | Carburizing device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0570709B2 (en) | 1993-10-05 |
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