JPH08313161A - Continuous type heat treatment furnace and housing container for material to be treated - Google Patents
Continuous type heat treatment furnace and housing container for material to be treatedInfo
- Publication number
- JPH08313161A JPH08313161A JP12174395A JP12174395A JPH08313161A JP H08313161 A JPH08313161 A JP H08313161A JP 12174395 A JP12174395 A JP 12174395A JP 12174395 A JP12174395 A JP 12174395A JP H08313161 A JPH08313161 A JP H08313161A
- Authority
- JP
- Japan
- Prior art keywords
- heat treatment
- lid member
- atmospheric gas
- side wall
- storage container
- 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
Landscapes
- Furnace Charging Or Discharging (AREA)
- Tunnel Furnaces (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、例えば、セラミックス
部品などの被処理物を熱処理する際に用いられる連続式
熱処理炉、および被処理物を熱処理する際に被処理物を
収納する被処理物収納容器に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to, for example, a continuous heat treatment furnace used when heat-treating an article to be treated such as a ceramic part, and an article to be treated which accommodates the article to be heat-treated. Regarding storage containers.
【０００２】[0002]
【従来の技術】従来から、被処理物として、セラミック
電子部品などのセラミック製品に対する脱脂、本焼成な
どの熱処理を実行するに際しては、図４で横断面構造を
示すような、一般にローラハース形熱処理炉と呼ばれて
いる連続式熱処理炉（以下、ＲＨ炉という）が用いられ
ている。すなわち、このＲＨ炉は、所定厚みの断熱材か
らなる炉本体２１と、炉内の熱処理空間内を横切る水平
方向に沿って配設され、かつ、炉本体２１の長手方向
（紙面とは垂直の方向）に沿って並列配置された多数本
の筒状のハースローラ２２と、炉本体２１外にまで両端
部が突出した各ハースローラ２２を回転駆動する電動機
などの回転駆動装置２３とを備えて構成されたものであ
る。そして、これらの回転駆動装置２３はハースローラ
２２それぞれの駆動側端部に連結される一方、各ハース
ローラ２２の反駆動側端部は軸受２４によって回転自在
に支持されており、セラミック製品を収容した処理用匣
やプレートなどの被処理物収納容器Ｓはハースローラ２
２の回転動作に伴って熱処理空間内を搬送されていくこ
とになっている。なお、この際、炉本体２１と各ハース
ローラ２２との間には、熱処理空間内を気密封止するた
めの不定形な断熱ファイバー２５などが詰め込まれてい
る。2. Description of the Related Art Conventionally, when performing heat treatment such as degreasing and main firing on a ceramic product such as a ceramic electronic component as an object to be treated, generally, a roller hearth type heat treatment furnace having a cross-sectional structure shown in FIG. 4 is used. A continuous heat treatment furnace called RH furnace is used. That is, this RH furnace is arranged along a furnace body 21 made of a heat insulating material having a predetermined thickness and a horizontal direction that traverses a heat treatment space in the furnace, and the longitudinal direction of the furnace body 21 (perpendicular to the paper surface). Direction) and a plurality of cylindrical hearth rollers 22 arranged in parallel, and a rotary drive device 23 such as an electric motor for rotationally driving each hearth roller 22 having both ends protruding outside the furnace body 21. It is a thing. The rotary drive devices 23 are connected to the drive-side end portions of the hearth rollers 22, respectively, while the anti-drive-side end portions of the hearth rollers 22 are rotatably supported by bearings 24. The object storage container S such as a jar and a plate is a hearth roller 2
It is supposed to be transported in the heat treatment space with the rotation operation of 2. At this time, an amorphous heat insulating fiber 25 for hermetically sealing the heat treatment space is packed between the furnace body 21 and each hearth roller 22.
【０００３】また、このＲＨ炉は、熱処理空間内に雰囲
気ガス（または冷却ガス）Ｇを導入するためのガス導入
管２６と、搬送中の被処理物Ｓを加熱するための電熱ヒ
ータ２７とが、炉本体２１の長手方向（紙面とは垂直の
方向）に沿って、複数個が並列配置されており、炉本体
２１を貫通して熱処理空間内に突出した各ガス導入管２
６の内端は熱処理空間内に向かって開口させられてい
る。されにまた、各電熱ヒータ２７は、ハースローラ２
２の上下位置それぞれに配置されたうえで熱処理空間内
を横切る水平方向に沿って配設されており、熱処理空間
内に導入された雰囲気ガスＧを介しての対流伝熱もしく
は直接的な輻射伝熱によって被処理物収納容器Ｓを加熱
するものとなっている。Further, in this RH furnace, a gas introduction pipe 26 for introducing an atmospheric gas (or a cooling gas) G into the heat treatment space, and an electric heater 27 for heating an object to be processed S being conveyed are provided. A plurality of gas introduction pipes 2 are arranged in parallel along the longitudinal direction of the furnace body 21 (direction perpendicular to the paper surface) and penetrate the furnace body 21 and project into the heat treatment space 2.
The inner end of 6 is opened toward the heat treatment space. In addition, each electric heater 27 is connected to the hearth roller 2
2 are respectively arranged at the upper and lower positions and along the horizontal direction that traverses the heat treatment space, and convective heat transfer or direct radiation transfer via the atmospheric gas G introduced into the heat treatment space. The object storage container S is heated by the heat.
【０００４】[0004]
【発明が解決しようとする課題】このようなＲＨ炉によ
り、セラミック製品を熱処理するには、熱処理空間が脱
脂、本焼成などの各熱処理段階に応じた所望のガス雰囲
気となるよう熱処理空間を、その長手方向に沿って、各
熱処理段階ごとにゾーン分けしなければならないが、前
記従来構造のＲＨ炉においては、熱処理空間全域をガス
雰囲気とする方式であるため、特定のゾーンに供給され
た雰囲気ガスＧが、隣接するゾーンに入り込み、したが
って各ゾーン毎に、ガス雰囲気を精密に制御することが
困難であった。In order to heat-treat a ceramic product in such an RH furnace, the heat-treating space is set so that the heat-treating space has a desired gas atmosphere according to each heat-treating step such as degreasing and main firing. The zones must be divided along the longitudinal direction for each heat treatment step. In the conventional RH furnace, the gas atmosphere is used throughout the heat treatment space. The gas G enters the adjacent zones, and thus it was difficult to precisely control the gas atmosphere in each zone.
【０００５】また、ＲＨ炉は、被熱処理物Ｓの搬送手段
としてハースローラ２２を用いる構造上、熱処理空間が
必然的に大きくなることに加え、ハースローラ２２の熱
膨張に伴って断熱ファイバー２５が変形すると、変形し
た断熱ファイバー２５を通じて雰囲気ガスＧが炉体２１
外へ漏れ出すため、従来構造のＲＨ炉のように、炉内空
間全域をガス雰囲気とする方式では、多量の雰囲気ガス
Ｇが必要となり、コストアップの原因となるという問題
があった。Further, in the RH furnace, since the heat treatment space is inevitably large due to the structure in which the hearth roller 22 is used as a conveying means for the object S to be heat treated, when the heat insulating fiber 25 is deformed due to the thermal expansion of the hearth roller 22. , The atmosphere gas G passes through the deformed heat insulating fiber 25,
Since the gas leaks to the outside, a method of using a gas atmosphere in the entire furnace space as in the conventional RH furnace requires a large amount of atmosphere gas G, which causes a problem of cost increase.
【０００６】本発明は、これらの不都合に鑑みて創案さ
れたものであって、雰囲気ガスの濃度を精密に制御する
ことができるとともに、雰囲気ガスの投入量を抑え、コ
ストダウンを図ることが可能な連続式熱処理炉および被
処理物収納容器を提供することを目的としている。The present invention was devised in view of these inconveniences, and it is possible to precisely control the concentration of the atmospheric gas, suppress the input amount of the atmospheric gas, and reduce the cost. It is an object of the present invention to provide a continuous heat treatment furnace and a storage container for an object to be processed.
【０００７】[0007]
【課題を解決するための手段】本発明の連続式熱処理炉
は、内部に熱処理空間を有する炉本体と、被処理物を加
熱する加熱手段と、前記熱処理空間の長手方向に沿って
直交するように、互いに並列配置されているとともに、
被処理物が収納された被処理物収納容器を搬送する複数
本の筒状ローラとを備え、前記筒状ローラの少なくとも
一端は雰囲気ガス供給源に接続されているとともに、前
記筒状ローラの周面には、前記雰囲気ガス供給源がら供
給された雰囲気ガスを、前記被処理物収納容器に設けら
れた開口部へ向けて噴出するためのガス噴出口が設けら
れていることを特徴とする。In a continuous heat treatment furnace of the present invention, a furnace body having a heat treatment space therein, a heating means for heating an object to be treated, and a heat treatment space orthogonal to each other along the longitudinal direction of the heat treatment space. In addition to being arranged in parallel with each other,
A plurality of cylindrical rollers for transporting an object-to-be-processed container in which an object to be processed is accommodated, at least one end of the cylindrical roller being connected to an atmosphere gas supply source, and the circumference of the cylindrical roller. The surface is provided with a gas ejection port for ejecting the atmospheric gas supplied from the atmospheric gas supply source toward an opening provided in the object storage container.
【０００８】また、本発明の連続式熱処理炉は、被処理
物が載置される底面部と、底面部の周縁より直立する側
壁部とによって、被処理物を収納する収納空間を形成す
る匣と、前記底面部に対向する位置に前記収納空間を覆
うように設けられた蓋部材とからなり、前記側壁部は前
記蓋部材との接触部に切欠部を有する被処理物収納容器
を備えることを特徴とする。Further, in the continuous heat treatment furnace of the present invention, the bottom part on which the object to be processed is placed and the side wall part standing upright from the peripheral edge of the bottom part form a housing space for accommodating the object to be processed. And a lid member provided at a position facing the bottom face portion so as to cover the storage space, and the side wall portion is provided with a processing object storage container having a cutout portion at a contact portion with the lid member. Is characterized by.
【０００９】また、本発明の連続式熱処理炉は、蓋部材
が、側壁部に設けられた切欠部を水平方向外側へ越えて
前記収納空間を覆うように前記底面部よりも大きな寸法
を有することを特徴とする。Further, in the continuous heat treatment furnace of the present invention, the lid member has a size larger than that of the bottom face portion so as to horizontally extend over the notch portion provided in the side wall portion to cover the storage space. Is characterized by.
【００１０】また、本発明の被処理物収納容器は、被処
理物が載置される底面部、および底面部の周縁より直立
する側壁部とによって、被処理物を収納する収納空間を
形成する匣と、前記底面部に対向する位置に、前記収納
空間を覆うように設けられた蓋部材とからなり、前記側
壁部は前記蓋部材との接触部に切欠部を有するととも
に、前記蓋部材は前記開口部を水平方向外側へ越えて前
記収納空間を覆うように、前記底面部よりも大きな寸法
を有することを特徴とする。Further, the object storage container of the present invention forms a storage space for accommodating the object to be processed by the bottom surface part on which the object to be processed is placed and the side wall part standing upright from the peripheral edge of the bottom surface part. It comprises a box and a lid member provided to cover the storage space at a position facing the bottom surface portion, the side wall portion has a cutout portion at a contact portion with the lid member, and the lid member is It is characterized in that it has a size larger than that of the bottom face portion so as to cover the storage space by crossing the opening portion to the outside in the horizontal direction.
【００１１】さらに、本発明の被処理物収納容器は、前
記底面部および前記蓋部材は、方形平板状であるととも
に、前記蓋部材の水平方向に対向する少なくとも１組の
辺の寸法は、これらに対し上下方向に対向する前記底面
部の１組の辺の寸法よりも大きく、前記底面部の各辺よ
り直立する側壁部には切欠部がそれぞれ形成されている
ことを特徴とする。Further, in the object storage container of the present invention, the bottom surface portion and the lid member are rectangular flat plates, and at least one set of sides of the lid member facing in the horizontal direction has these dimensions. On the other hand, a notch is formed in each of side wall portions that are larger than a pair of sides of the bottom surface portion that face each other in the vertical direction and that are upright from each side of the bottom surface portion.
【００１２】[0012]
【作用】本発明の連続式熱処理炉によれば、筒状ローラ
の周面に設けられた雰囲気ガス噴出口より、被処理物収
納容器に設けれた開口部へ向けて、雰囲気ガスを噴出す
ることが可能である。したがって、炉内の熱処理空間を
搬送される被処理物収納容器の内部へは、被処理物収納
容器の近傍にある筒状ローラより常にその熱処理段階に
適した量の雰囲気ガスが供給されることとなる。According to the continuous heat treatment furnace of the present invention, the atmospheric gas is jetted from the atmospheric gas jet port provided on the peripheral surface of the cylindrical roller toward the opening provided in the object storage container. It is possible. Therefore, the amount of atmospheric gas suitable for the heat treatment step is always supplied to the inside of the object storage container that is transported through the heat treatment space in the furnace from the cylindrical roller near the object storage container. Becomes
【００１３】また、本発明の連続式熱処理炉によれば、
筒状ローラの周面に設けられた雰囲気ガス噴出口より、
被処理物収納容器の内部へ雰囲気ガスを直接的に噴出す
ることが可能であるので、被処理物収納容器内を適当な
濃度の雰囲気ガスで満たせばよく、炉内の熱処理空間の
全域を雰囲気ガスで満たす必要がない。According to the continuous heat treatment furnace of the present invention,
From the atmospheric gas ejection port provided on the peripheral surface of the cylindrical roller,
Since it is possible to directly eject the atmospheric gas into the processing object storage container, it is sufficient to fill the inside of the processing object storage container with an atmospheric gas of an appropriate concentration, and the entire heat treatment space in the furnace is exposed to the atmosphere. No need to fill with gas.
【００１４】また、本発明の連続式熱処理炉において、
被処理物が載置される底面部と、底面部の周縁より直立
する側壁部とによって、被処理物を収納する収納空間を
形成する匣と、前記底面部に対向する位置に前記収納空
間を覆うよう設けられた蓋部材とからなり、前記側壁部
は前記蓋部材との接触部に切欠部を有する被処理物収納
容器を備える場合には、筒状ローラの周面に設けられた
雰囲気ガス噴出口より、噴出された雰囲気ガスは、匣の
側壁部に設けられた切欠部より、被処理物収納容器の収
納空間に侵入し、収納容器は常に適当な濃度の雰囲気ガ
スにより満たされることとなる。In the continuous heat treatment furnace of the present invention,
The bottom part on which the object to be processed is placed, and the side wall part which stands upright from the peripheral edge of the bottom part form a box which forms a housing space for housing the object to be processed, and the housing space at a position facing the bottom part. In the case where the side wall portion is provided with an object storage container having a notch at the contact portion with the lid member, the side wall portion is provided with an atmospheric gas provided on the peripheral surface of the cylindrical roller. The atmospheric gas ejected from the ejection port enters the storage space of the object storage container through the notch provided on the side wall of the box, and the storage container is always filled with the atmospheric gas of an appropriate concentration. Become.
【００１５】また、本発明の連続式熱処理炉において、
蓋部材が側壁部に設けられた切欠部を水平方向外側へ越
えて前記収納空間を覆うように底面部よりも大きな寸法
を有している場合には、筒状ローラの周面に設けられた
雰囲気ガス噴出口より噴出された雰囲気ガスは、蓋部材
の裏面に沿って、切欠部より、被処理物収納容器の収納
空間へ侵入することとなる。In the continuous heat treatment furnace of the present invention,
When the lid member has a size larger than the bottom face portion so as to cover the storage space by horizontally extending over the notch portion provided in the side wall portion, the lid member is provided on the peripheral surface of the cylindrical roller. The atmospheric gas ejected from the atmospheric gas ejection port enters the storage space of the object storage container through the notch along the back surface of the lid member.
【００１６】また、本発明の被処理物収納容器によれ
ば、外部より供給される雰囲気ガスは、蓋部材の裏面に
沿って、切欠部より、被処理物収納容器の収納空間へ侵
入するとともに、収納空間は、これを覆う蓋部材によ
り、半密閉状態とされているので、雰囲気ガスの供給量
に応じて適当な雰囲気ガスの濃度を維持することが可能
である。Further, according to the object-to-be-processed container of the present invention, the atmospheric gas supplied from the outside enters the accommodation space of the object-to-be-processed container through the notch along the back surface of the lid member. Since the storage space is in a semi-sealed state by the lid member that covers the storage space, it is possible to maintain an appropriate concentration of the ambient gas according to the supply amount of the ambient gas.
【００１７】また、本発明の被処理物収納容器におい
て、底面部および蓋部材が、方形平板状であるととも
に、蓋部材の水平方向に対向する少なくとも１組の辺の
寸法は、これらに対し上下方向に対向する底面部の１組
の辺の寸法よりも大きく、前記底面部の各辺より直立す
る側壁部には切欠部がそれぞれ形成されている場合に
は、上下方向に対向する底面部の辺の寸法よりも、大き
な寸法を有する蓋部材の辺が、被処理物収納容器の進行
方向に対し、垂直となるように被処理物収納容器を連続
式熱処理炉の熱処理空間内に配置することにより、外部
から供給される雰囲気ガスは被処理物収納容器の進行方
向に対し、平行となる側壁部に設けられた切欠部より、
蓋部材の裏面に沿って、収納空間内に侵入するととも
に、被処理物収納容器の進行方向に対し、垂直となる側
壁部に設けられた開口部より、収納空間外へ流出するこ
ととなる。Further, in the object storage container of the present invention, the bottom surface portion and the lid member are rectangular flat plates, and at least one set of sides of the lid member facing in the horizontal direction has a dimension above and below them. When the notch is formed in each of the side wall portions that are larger than a pair of sides of the bottom face portion facing each other in the direction and upright from each side of the bottom face portion, the bottom face portion that faces the up and down direction is formed. Arranging the object storage container in the heat treatment space of the continuous heat treatment furnace such that the side of the lid member having a size larger than the side is perpendicular to the traveling direction of the object storage container. Thus, the ambient gas supplied from the outside is cut in the side wall portion parallel to the traveling direction of the object storage container,
Along with the back surface of the lid member, it enters the storage space and flows out of the storage space through the opening provided in the side wall portion that is perpendicular to the traveling direction of the object storage container.
【００１８】[0018]
【実施例の説明】以下、本発明の実施例を図面に基づい
て説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.
【００１９】図１は、本発明の連続式熱処理炉の一実施
例である、ローラーハース炉（以下、ＲＨ炉）１の横断
面構造を示す概略断面図である。このＲＨ炉１は、内部
に熱処理空間を有する炉本体２と、セラミック製品３な
どの被処理物を加熱する加熱手段である電熱ヒータ４
と、熱処理空間の長手方向（紙面とは垂直の方向）に沿
って並列配置されているとともに、セラミック製品３が
収納された被処理物収納容器５を搬送する複数本の筒状
のハースローラ６とを備えている。FIG. 1 is a schematic cross-sectional view showing a cross-sectional structure of a roller hearth furnace (hereinafter, RH furnace) 1 which is an embodiment of a continuous heat treatment furnace of the present invention. This RH furnace 1 includes a furnace body 2 having a heat treatment space inside, and an electric heater 4 as a heating means for heating an object to be processed such as a ceramic product 3.
And a plurality of cylindrical hearth rollers 6 that are arranged in parallel along the longitudinal direction of the heat treatment space (direction perpendicular to the paper surface) and that convey the object storage container 5 in which the ceramic product 3 is stored. Is equipped with.
【００２０】炉本体２は、所定厚みの断熱材からなり、
その内部に熱処理空間を形成している。The furnace body 2 is made of a heat insulating material having a predetermined thickness,
A heat treatment space is formed inside it.
【００２１】電熱ヒータ４は、炉本体２の上端付近およ
び下端付近において、炉本体２を貫通するように、熱処
理空間の長手方向（紙面とは垂直の方向）に沿って、複
数本が並列配置されている。A plurality of electric heaters 4 are arranged in parallel along the longitudinal direction of the heat treatment space (perpendicular to the paper surface) so as to penetrate the furnace body 2 near the upper end and the lower end of the furnace body 2. Has been done.
【００２２】筒状のハースローラ６の両端は、炉本体２
の外部へ突出しており、ハースローラ６の一端は、ハー
スローラ６を回転駆動させる電動機などの回転駆動装置
７に連結され、ハースローラ６の他端は、軸受８によっ
て回転自在に支持されている。また、炉本体２と各ハー
スローラ６との間には、熱処理空間内を気密封止するた
めの不定形な断熱ファイバー９などが詰め込まれてい
る。Both ends of the cylindrical hearth roller 6 are connected to the furnace body 2
Of the hearth roller 6 is connected to a rotary drive device 7 such as an electric motor that rotationally drives the hearth roller 6, and the other end of the hearth roller 6 is rotatably supported by a bearing 8. Further, between the furnace body 2 and each hearth roller 6, an amorphous heat insulating fiber 9 for hermetically sealing the heat treatment space is packed.
【００２３】また、ハースローラ６は、その両端におい
て、図示しない雰囲気ガス供給源に、チューブ１０を介
して、接続され、気密封止されている。Further, the hearth roller 6 is connected at both ends thereof to an atmosphere gas supply source (not shown) through a tube 10 and hermetically sealed.
【００２４】ハースローラ６の周面には、ハースローラ
６の内部に雰囲気ガス供給源より、チューブ１０を介し
て供給される雰囲気ガスを、ハースローラ６上に配置さ
れる被処理物収納容器５に設けられた開口部１１へ向け
て噴出するための雰囲気ガス噴出口１２が形成されてい
る。この雰囲気ガス噴出口１２は、ハースローラ６の長
手方向において、被処理物収納容器５が配置される部分
の外側近傍の２箇所において、ハースローラ６の周方向
に連続して、適当な間隔をおいて、複数個が形成されて
いる。また、これらの雰囲気ガス噴出口１２は、ハース
ローラ６の端部側から供給される雰囲気ガスを、被処理
物収納容器５に設けられた開口部１１へ向かわせるた
め、ハースローラ６の内周面側から外周面側へ向かうに
従い、ハースローラ６の長手方向の中央部側へ傾斜して
いる。On the peripheral surface of the hearth roller 6, the atmospheric gas supplied from the atmospheric gas supply source to the inside of the hearth roller 6 through the tube 10 is provided in the object storage container 5 arranged on the hearth roller 6. An atmospheric gas ejection port 12 for ejecting toward the opening 11 is formed. The atmospheric gas ejection ports 12 are continuous in the circumferential direction of the hearth roller 6 at appropriate intervals at two locations in the longitudinal direction of the hearth roller 6 near the outside of the portion where the object storage container 5 is arranged. , A plurality of them are formed. Further, these atmospheric gas ejection ports 12 direct the atmospheric gas supplied from the end portion side of the hearth roller 6 toward the opening 11 provided in the object-to-be-processed container 5, so that the inner peripheral surface side of the hearth roller 6 is closed. From the outer peripheral surface side to the central portion side in the longitudinal direction of the hearth roller 6.
【００２５】次にハースローラ６上に設けられる被処理
物収納容器５について詳述する。Next, the object storage container 5 provided on the hearth roller 6 will be described in detail.
【００２６】図２および図３は、本発明の被処理物収納
容器５の一実施例を示す概略斜視図である。この被処理
物収納容器５は、被処理物が載置される正方形状または
長方形状の底面部１３およびこの底面部１３の周縁より
直立する側壁部１４によって、被処理物を収納する収納
空間を形成する匣１５と、底面部１３に対向する位置
に、匣１５の収納空間を覆うように設けられた長方形平
板状の蓋部材１６とからなる。図２は、匣１５と蓋部材
１６とを組み合わせた状態を示す概略斜視図であり、図
３は匣１５と蓋部材１６とを分離した状態を示す概略斜
視図である。ＲＨ炉１の熱処理空間内で、脱脂や本焼成
等の熱処理を行なう際には、図２に示す状態で使用し、
熱処理前において被処理物の匣詰めを行なう際および熱
処理後に熱処理物を取り出す際には図３に示す状態で使
用する。2 and 3 are schematic perspective views showing an embodiment of the object storage container 5 of the present invention. The object storage container 5 has a storage space for storing an object to be processed by a square-shaped or rectangular-shaped bottom surface portion 13 on which the processing object is placed and a side wall portion 14 which stands upright from a peripheral edge of the bottom surface portion 13. It comprises a box 15 to be formed and a rectangular flat plate-like lid member 16 provided at a position facing the bottom surface portion 13 so as to cover the storage space of the box 15. FIG. 2 is a schematic perspective view showing a state in which the box 15 and the lid member 16 are combined, and FIG. 3 is a schematic perspective view showing a state in which the box 15 and the lid member 16 are separated. When performing heat treatment such as degreasing and main firing in the heat treatment space of the RH furnace 1, use the state shown in FIG.
When the object to be treated is packed in a box before the heat treatment and when the heat-treated article is taken out after the heat treatment, the state shown in FIG. 3 is used.
【００２７】底面部１３の各辺より直立する側壁部１４
には、蓋部材１６と接触する部分にそれぞれ切欠部１７
が形成されている。A side wall portion 14 which stands upright from each side of the bottom surface portion 13.
The notch 17 is formed in each of the portions that come into contact with the lid member 16.
Are formed.
【００２８】蓋部材１６の、水平方向に対向する１組の
辺１６ａ、１６ｂの寸法は、これらに対し上下方向にお
いて対向する匣１５の底面部１３の１組の辺１３ａ、１
３ｂの寸法と略同一である。また、蓋部材１６の水平方
向に対向する他の１組の辺１６ｃ、１６ｄの寸法は、こ
れらに対し上下方向において対向する匣１５の底面部１
３の１組の辺１３ｃ、１３ｄの寸法よりも大きい。した
がって、蓋部材１６は、匣１５ａの水平方向に対向する
１組の側壁部にそれぞれ形成された１組の切欠部１７
ａ、１７ｂを水平方向外側へ越えて匣１５の収納空間を
覆うこととなる。The dimension of the pair of sides 16a and 16b of the lid member 16 which are opposed to each other in the horizontal direction is the same as the pair of sides 13a and 1b of the bottom surface 13 of the box 15 which are opposed to them in the vertical direction.
It is almost the same as the size of 3b. Further, the size of the other pair of sides 16c, 16d facing horizontally of the lid member 16 is the same as the bottom portion 1 of the box 15 facing them in the vertical direction.
3 is larger than the size of the pair of sides 13c and 13d. Therefore, the lid member 16 includes a pair of notches 17 formed in the pair of side wall portions facing each other in the horizontal direction of the box 15a.
The space for housing the box 15 is covered by crossing a and 17b outward in the horizontal direction.
【００２９】次に、本発明の連続式熱処理炉および被処
理物収納容器を用いての、被処理物の熱処理方法につい
て説明する。Next, the heat treatment method for the object to be treated using the continuous heat treatment furnace and the object container of the present invention will be explained.
【００３０】まず、被処理物３が収納された被処理物収
納容器５を熱処理空間の始端部に設けられたハースロー
ラ６上に載置する。このとき、被処理物収納容器５を、
ハースローラ６の長手方向の２ヵ所に設けられた雰囲気
ガス噴出口１２の間に載置するとともに、匣１５の底面
部１３の１組の辺１３ｃ、１３ｄよりも大きい寸法を有
する蓋部材１６の１組の辺１６ｃ、１６ｄが、ハースロ
ーラ６の長手方向と平行になるように載置する。First, the object storage container 5 in which the object 3 is stored is placed on the hearth roller 6 provided at the starting end of the heat treatment space. At this time, the object storage container 5 is
The lid member 16 is placed between the atmospheric gas outlets 12 provided at two positions in the longitudinal direction of the hearth roller 6 and has a size larger than the pair of sides 13c and 13d of the bottom surface portion 13 of the box 15. The sides 16c and 16d of the set are placed so as to be parallel to the longitudinal direction of the hearth roller 6.
【００３１】ハースローラ６上の被処理物収納容器５
は、回転駆動装置７によるハースローラ６の回転によっ
て、ＲＨ炉１の熱処理空間内をその終端部まで搬送され
る。ハースローラ６によって搬送される被処理収納容器
５内の被処理物３は、熱処理空間の長手方向に沿って設
けられた複数本の電熱ヒータ４によって、所定のプロフ
ァイルで脱脂、本焼成等の熱処理が行なわれる。また、
熱処理空間の長手方向に沿って設けられたハースローラ
６の、周面に設けられた雰囲気ガス噴出口１２より噴出
される雰囲気ガスは、蓋部材１６の裏面に沿って、ハー
スローラ６の長手方向とは垂直（被処理物収納容器５の
進行方向と平行）となる側壁部１４に設けられた切欠部
１７ａ、１７ｂより収納空間内に侵入し、一定時間滞留
した後、ハースローラ６の長手方向とは平行（被処理物
収納容器５の進行方向と垂直）となる側壁部１４に設け
られた切欠部１７ｃ、１７ｄより流出することになる。
したがって、搬送中の被処理収納容器の収納空間内は、
常に脱脂、本焼成などの各熱処理段階に応じた所望のガ
ス雰囲気で満たされていることとなる。The object storage container 5 on the hearth roller 6
Is transported by the rotation of the hearth roller 6 by the rotary drive device 7 to the end portion in the heat treatment space of the RH furnace 1. The object 3 to be processed in the container 5 to be processed conveyed by the hearth roller 6 is subjected to heat treatment such as degreasing and main baking with a predetermined profile by a plurality of electric heaters 4 provided along the longitudinal direction of the heat treatment space. Done. Also,
The atmospheric gas ejected from the atmospheric gas ejection ports 12 provided on the peripheral surface of the hearth roller 6 provided along the longitudinal direction of the heat treatment space is along the back surface of the lid member 16 and is different from the longitudinal direction of the hearth roller 6. After entering into the storage space through the notches 17a and 17b provided in the side wall portion 14 which is vertical (parallel to the traveling direction of the object storage container 5) and stays for a certain time, it is parallel to the longitudinal direction of the hearth roller 6. It will flow out from the notches 17c and 17d provided in the side wall portion 14 (perpendicular to the traveling direction of the object storage container 5).
Therefore, the inside of the storage space of the storage container being processed is
It is always filled with a desired gas atmosphere according to each heat treatment stage such as degreasing and main firing.
【００３２】以上のように、本発明の連続式熱処理炉及
び被処理物収納容器について、一実施例に基づいて詳述
したが、本発明はこのような一実施例に限定されるもの
ではなく、本発明の趣旨の範囲内で種々の変更が可能で
ある。As described above, the continuous heat treatment furnace and the object storage container of the present invention have been described in detail based on an embodiment, but the present invention is not limited to such an embodiment. Various modifications are possible within the scope of the present invention.
【００３３】例えば、上記実施例においては、雰囲気ガ
ス噴出口１２は、ハースローラ６の長手方向において、
被処理物収納容器５が載置される部分の両側２ヵ所に設
けることとしたが、本発明はこれに限定されるものでは
なく、両側４ヵ所、６ヵ所、８ヵ所 ・・・であってもよ
い。この場合、雰囲気ガス噴出口１２のそれぞれから噴
出された雰囲気ガスを、被処理物収納容器５の開口部１
１に向わせるためには、各雰囲気ガス噴出口１２の傾斜
角を調整すればよい。For example, in the above-mentioned embodiment, the atmospheric gas ejection port 12 is arranged in the longitudinal direction of the hearth roller 6.
Although it has been decided to provide the treatment object storage container 5 at two places on both sides of the portion to be placed, the present invention is not limited to this, and there are four places, six places, eight places on both sides. Good. In this case, the atmospheric gas spouted from each of the atmospheric gas spouts 12 is supplied to the opening 1 of the object storage container 5.
In order to bring the pressure toward 1, the inclination angle of each atmospheric gas ejection port 12 may be adjusted.
【００３４】また、必ずしも複数のハースローラ６の全
てに、雰囲気ガス噴出口１２を設ける必要はなく、一定
の間隔おきに設けてもよい。Further, it is not always necessary to provide the atmospheric gas jet ports 12 on all of the plurality of hearth rollers 6, and they may be provided at regular intervals.
【００３５】また、上記実施例においては、蓋部材１６
の１組の辺１６ｃ、１６ｄの寸法が、これに対向する匣
１５の底面部の１組の辺１３ｃ、１３ｄの寸法より大き
いとしたが、２組の辺の寸法がいずれも、これに対向す
る底面部の辺の寸法よりも大きくてもよい。In the above embodiment, the lid member 16
The size of the pair of sides 16c and 16d is larger than the size of the pair of sides 13c and 13d of the bottom face of the box 15 facing the same. It may be larger than the dimension of the side of the bottom portion.
【００３６】また、匣１５の側壁部１４に設ける切欠部
１７の形状や形成ヵ所についても、適宜設定することが
できる。The shape and location of the notch 17 provided on the side wall 14 of the box 15 can be set appropriately.
【００３７】さらに、上記の実施例においては、ハース
ローラ６の両端より、チューブ１０により雰囲気ガス供
給源に接続することとしたが、設備を簡略化するために
は、ハースローラ６の一端を雰囲気ガス供給源に接続
し、他端を閉塞することも可能である。但、被処理物収
納容器５の進行方向両側より均一に雰囲気ガスを供給す
ることを考慮すると、上記実施例のように設定する方が
好ましい。Further, in the above-mentioned embodiment, the both ends of the hearth roller 6 are connected to the atmospheric gas supply source by the tubes 10. However, in order to simplify the equipment, one end of the hearth roller 6 is supplied with the atmospheric gas. It is also possible to connect to the source and block the other end. However, considering that the atmospheric gas is supplied uniformly from both sides of the object storage container 5 in the traveling direction, the setting as in the above embodiment is preferable.
【００３８】[0038]
【発明の効果】以上説明したように、本発明の連続式熱
処理炉および被処理物収納容器によれば、雰囲気ガスの
濃度を精密に制御することができるとともに、雰囲気ガ
スの投入量を抑え、コストダウンを図ることが可能とな
る。As described above, according to the continuous heat treatment furnace and the object storage container of the present invention, the concentration of the atmospheric gas can be precisely controlled, and the input amount of the atmospheric gas can be suppressed. It is possible to reduce costs.
【００３９】また、本発明の連続式熱処理炉は、被処理
物が載置される底面部と、底面部の周縁より直立する側
壁部とによって、被処理物を収納する収納空間を形成す
る匣と、前記底面分に対向する位置に前記収納空間を覆
うよう設けられた平板状の蓋部材とからなり、前記側壁
部は前記蓋部材との接触部に切欠部を有する被処理物収
納容器を備えていることが望ましい。Further, in the continuous heat treatment furnace of the present invention, the bottom part on which the object to be processed is placed and the side wall part which stands upright from the peripheral edge of the bottom part form a housing space for accommodating the object to be processed. And a flat plate-shaped lid member provided at a position facing the bottom surface so as to cover the storage space, and the side wall portion is a workpiece storage container having a cutout portion in a contact portion with the lid member. It is desirable to have it.
【００４０】また、本発明の連続式熱処理炉は、蓋部材
が側壁部に設けられた開口部を水平方向外側へ越えて前
記収納空間を覆うように底面部よりも大きな寸法を有し
ていることがより望ましい。Further, in the continuous heat treatment furnace of the present invention, the lid member has a size larger than that of the bottom portion so that the lid member extends horizontally outside the opening provided in the side wall to cover the storage space. Is more desirable.
【００４１】また、本発明の被処理物収納容器は、底面
部および蓋部材が、方形平板状であるとともに、蓋部材
の水平方向に対向する少なくとも１組の辺の寸法は、こ
れらに対し上下方向に対向する底面部の１組の辺の寸法
よりも大きく、前記底面部の各辺より直立する側壁部に
は開口部がそれぞれ形成されていることが望ましい。Further, in the object storage container of the present invention, the bottom portion and the lid member are rectangular flat plates, and at least one set of sides of the lid member facing in the horizontal direction has a dimension above and below them. Openings are preferably formed in side wall portions that are larger than a pair of sides of the bottom surface portion facing each other in the direction and upright from the respective sides of the bottom surface portion.
【図１】本発明の一実施例に係るＲＨ炉の横断面構造を
示す概略断面図である。FIG. 1 is a schematic cross-sectional view showing a cross-sectional structure of an RH furnace according to an embodiment of the present invention.
【図２】本発明の一実施例に係る被処理物収納容器であ
って、匣と蓋部材とが組み合わされた状態を示す斜視図
である。FIG. 2 is a perspective view showing a container for processing objects according to an embodiment of the present invention, showing a state in which a box and a lid member are combined.
【図３】本発明の一実施例に係る被処理物収納容器であ
って、匣と蓋部材とが分離された状態を示す斜視図であ
る。FIG. 3 is a perspective view showing a container for storing an object to be processed according to an embodiment of the present invention, showing a state in which a box and a lid member are separated from each other.
【図４】本発明の従来例に係るＲＨ炉の横断面構造を示
す概略断面図である。FIG. 4 is a schematic cross-sectional view showing a cross-sectional structure of an RH furnace according to a conventional example of the present invention.
１ ＲＨ炉 ２ 炉本体 ３ セラミック製品（被処理物） ４ 電熱ヒータ（加熱手段） ５ 被処理物収納容器 ６ ハースローラ（筒状ローラー） ７ 回転駆動装置 １１ 開口部 １２ 雰囲気ガス噴出口 １３ 底面部 １４ 側壁部 １５ 匣 １６ 蓋部材 １７ 切欠部 1 RH Furnace 2 Furnace Main Body 3 Ceramic Product (Processing Object) 4 Electric Heater (Heating Means) 5 Processing Object Storage Container 6 Hearth Roller (Cylindrical Roller) 7 Rotation Driving Device 11 Opening 12 Atmospheric Gas Jet 13 Bottom Bottom 14 Side wall 15 Box 16 Lid member 17 Notch
Claims (5)
いに並列配置されているとともに、被処理物が収納され
た被処理物収納容器を搬送する複数本の筒状ローラとを
備え、 前記筒状ローラの少なくとも一端は雰囲気ガス供給源に
接続されているとともに、前記筒状ローラの周面には、
前記雰囲気ガス供給源から供給された雰囲気ガスを、前
記被処理物収納容器に設けられた開口部へ向けて噴出す
るための雰囲気ガス噴出口が設けられていることを特徴
とする連続式熱処理炉。1. A furnace main body having a heat treatment space therein, a heating means for heating an object to be treated, and the object to be treated are arranged in parallel with each other so as to be orthogonal to each other along the longitudinal direction of the heat treatment space. And a plurality of cylindrical rollers that convey the object storage container that stores therein, at least one end of the cylindrical rollers is connected to an atmosphere gas supply source, and the peripheral surface of the cylindrical rollers is ,
A continuous heat treatment furnace, wherein an atmospheric gas supply port is provided for ejecting the atmospheric gas supplied from the atmospheric gas supply source toward an opening provided in the object storage container. .
する請求項１に記載の連続式熱処理炉であって、 前記被処理物収納容器は、被処理物が載置される底面部
と、底面部の周縁より直立する側壁部とによって、被処
理物を収納する収納空間を形成する匣と、 前記底面部に対向する位置に前記収納空間を覆うように
設けられた蓋部材とからなり、 前記側壁部は前記蓋部材との接触部に切欠部を有する。2. The continuous heat treatment furnace according to claim 1, further comprising a treatment object storage container, wherein the treatment object storage container includes a bottom surface portion on which the treatment object is placed. A box that forms a storage space for storing the object to be processed by the side wall portion that is upright from the periphery of the bottom surface portion, and a lid member that is provided at a position facing the bottom surface portion so as to cover the storage space. The side wall portion has a cutout portion at a contact portion with the lid member.
前記切欠部を水平方向外側へ越えて前記収納空間を覆う
ように前記底面部よりも大きな寸法を有することを特徴
とする請求項２に記載の連続式熱処理炉。3. The lid member has a size larger than that of the bottom surface portion so as to cover the storage space by horizontally extending beyond the cutout portion provided in the side wall portion to the outside in the horizontal direction. The continuous heat treatment furnace according to 2.
理する際に用いられる被処理物収納容器であって、 被処理物が載置される底面部および底面部の周縁より直
立する側壁部とによって、被処理物を収納する収納空間
を形成する匣と、 前記底面部に対向する位置に、前記収納空間を覆うよう
に設けられた蓋部材とからなり、 前記側壁部は前記蓋部材との接触部に切欠部を有すると
ともに、前記蓋部材は前記切欠部を水平方向外側へ越え
て前記収納空間を覆うように、前記底面部よりも大きな
寸法を有することを特徴とする被処理物収納容器。4. A container for storing an object to be processed, which is used when heat-treating an object to be processed by a continuous heat treatment furnace, wherein a bottom surface part on which the object to be processed is placed and a side wall part standing upright from a peripheral edge of the bottom surface part. A box that forms a storage space for storing the object to be processed, and a lid member that is provided at a position facing the bottom surface portion so as to cover the storage space, and the side wall portion includes the lid member. And a lid member having a size larger than that of the bottom face portion so that the lid member covers the storage space by horizontally extending beyond the cutout portion to the outside in the horizontal direction. container.
板状であるとともに、前記蓋部材の水平方向に対向する
少なくとも一組の辺の寸法は、これらに対し上下方向に
対向する前記底面部の一組の辺の寸法よりも大きく、前
記底面部の各辺より直立する側壁部には切欠部がそれぞ
れ形成されていることを特徴とする請求項４に記載の被
処理物収納容器。5. The bottom surface portion and the lid member are rectangular flat plates, and the dimension of at least one set of sides of the lid member facing in the horizontal direction is such that the bottom surface portion facing in the up-down direction. 5. The object storage container according to claim 4, wherein notches are formed in side wall portions that are larger than the size of one set of sides and are upright from each side of the bottom surface portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12174395A JPH08313161A (en) | 1995-05-19 | 1995-05-19 | Continuous type heat treatment furnace and housing container for material to be treated |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12174395A JPH08313161A (en) | 1995-05-19 | 1995-05-19 | Continuous type heat treatment furnace and housing container for material to be treated |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08313161A true JPH08313161A (en) | 1996-11-29 |
Family
ID=14818787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12174395A Pending JPH08313161A (en) | 1995-05-19 | 1995-05-19 | Continuous type heat treatment furnace and housing container for material to be treated |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08313161A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103765144A (en) * | 2011-09-05 | 2014-04-30 | 株式会社Ihi | Continuous heating furnace |
| US10267564B2 (en) | 2010-07-30 | 2019-04-23 | Lg Innotek Co., Ltd. | Heat treatment container for vacuum heat treatment apparatus |
| JP2019178819A (en) * | 2018-03-30 | 2019-10-17 | 日本碍子株式会社 | Setter, sagger, heat treatment furnace and heat treating system |
| US10502487B2 (en) | 2011-09-05 | 2019-12-10 | Ihi Corporation | Heating furnace and continuous heating furnace |
-
1995
- 1995-05-19 JP JP12174395A patent/JPH08313161A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10267564B2 (en) | 2010-07-30 | 2019-04-23 | Lg Innotek Co., Ltd. | Heat treatment container for vacuum heat treatment apparatus |
| CN103765144A (en) * | 2011-09-05 | 2014-04-30 | 株式会社Ihi | Continuous heating furnace |
| CN103765144B (en) * | 2011-09-05 | 2015-11-25 | 株式会社Ihi | Continuous furnace |
| US9869516B2 (en) | 2011-09-05 | 2018-01-16 | Ihi Corporation | Continuous heating furnace |
| US10502487B2 (en) | 2011-09-05 | 2019-12-10 | Ihi Corporation | Heating furnace and continuous heating furnace |
| JP2019178819A (en) * | 2018-03-30 | 2019-10-17 | 日本碍子株式会社 | Setter, sagger, heat treatment furnace and heat treating system |
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