JP2003185344A - Heat-treating furnace - Google Patents
Heat-treating furnaceInfo
- Publication number
- JP2003185344A JP2003185344A JP2001382374A JP2001382374A JP2003185344A JP 2003185344 A JP2003185344 A JP 2003185344A JP 2001382374 A JP2001382374 A JP 2001382374A JP 2001382374 A JP2001382374 A JP 2001382374A JP 2003185344 A JP2003185344 A JP 2003185344A
- Authority
- JP
- Japan
- Prior art keywords
- heating chamber
- heat treatment
- processed
- support base
- supporting base
- 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)
- Muffle Furnaces And Rotary Kilns (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は粉末の成形体を連
続して各種処理し焼結を行う焼結炉、特に真空式の焼結
炉に適用して好適な熱処理炉に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat treatment furnace suitable for application to a sintering furnace, in particular, a vacuum type sintering furnace, in which powder compacts are continuously treated and sintered.
【０００２】[0002]
【従来の技術】従来粉末の焼結体は、粉末を所定形状に
成形して成る被処理物に対して各種の処理、例えば真空
の脱ガス室で被処理物に含まれているバインダを加熱下
で蒸発除去したり、その後に加熱処理を複数段階行った
りして得ており、そのための設備として連続式の真空焼
結炉（熱処理炉）が用いられている。2. Description of the Related Art Conventionally, a sintered body of powder is subjected to various treatments on an object to be treated formed by molding the powder into a predetermined shape, for example, heating a binder contained in the object in a vacuum degassing chamber. It is obtained by evaporating and removing it below, and then performing heat treatment in multiple stages, and a continuous vacuum sintering furnace (heat treatment furnace) is used as equipment therefor.
【０００３】図８は従来用いられている連続式の真空焼
結炉の一例の要部を示したものである。同図において、
２００は焼結炉２０２における炉体で内部に加熱室２０
４が設けられている。加熱室２０４の内部は１０００℃
以上の高温となるため、加熱室２０４の壁２０６は高耐
熱且つ高断熱性の材料で構成されている。通例この壁２
０６はカーボン繊維を成形した比較的軟らかい材料で構
成されている。FIG. 8 shows a main part of an example of a conventional continuous-type vacuum sintering furnace. In the figure,
Reference numeral 200 denotes a furnace body in the sintering furnace 202, which is provided inside the heating chamber 20.
4 are provided. 1000 ° C inside the heating chamber 204
Because of the above high temperature, the wall 206 of the heating chamber 204 is made of a material having high heat resistance and high heat insulation. Usually this wall 2
06 is made of a relatively soft material formed of carbon fiber.
【０００４】加熱室２０４の前後には入口２０８，出口
２１０が設けられており、それらが扉２１２，２１４に
て開閉されるようになっている。ここで扉２１２，２１
４は、それぞれ開閉装置２１６，２１８にて開閉作動さ
せられる。An inlet 208 and an outlet 210 are provided in front of and behind the heating chamber 204, and these are opened and closed by doors 212 and 214. Here the doors 212 and 21
4 is opened / closed by opening / closing devices 216 and 218, respectively.
【０００５】この例の焼結炉２０２の場合、加熱室２０
４の内部が被処理物Ｗの搬送空間も兼ねており、そのた
め加熱室２０４内部には被処理物Ｗを加熱するヒータ２
２２と併せて、被処理物Ｗを載せて自身の回転により搬
送する搬送ローラ（搬送手段）２２０が並設されてい
る。In the case of the sintering furnace 202 of this example, the heating chamber 20
The inside of 4 also serves as a conveyance space for the object to be processed W, and therefore the heater 2 for heating the object to be processed W is provided inside the heating chamber 204.
Along with 22, the conveying rollers (conveying means) 220 for placing the object W and conveying it by its rotation are arranged in parallel.
【０００６】しかしながらこの焼結炉２０２の場合、搬
送ローラ２２０が加熱室２０４内部に配設されていて、
加熱室２０４内で加熱されてしまうため、搬送ローラ２
２０を高耐熱の材料で構成しなければならず、必然的に
搬送ローラ２２０が高価なものとなってしまう。また搬
送ローラ２２０を通じて熱が外部に逃げるため、熱損失
が大きいといった問題もあった。However, in the case of this sintering furnace 202, the conveying roller 220 is disposed inside the heating chamber 204,
Since it is heated in the heating chamber 204, the transport roller 2
20 must be made of a highly heat-resistant material, and the transport roller 220 is inevitably expensive. Further, since heat escapes to the outside through the transport roller 220, there is a problem that heat loss is large.
【０００７】図９の焼結炉２０２はこれを改善すべく案
出されたもので（特公平５−１７４７２）、ここでは搬
送空間２２６を加熱室２０４と分けてその下側に形成
し、そこに搬送ローラ２２０を並設している。The sintering furnace 202 of FIG. 9 was devised to improve this (Japanese Patent Publication No. 5-17472). Here, the transfer space 226 is formed separately from the heating chamber 204 and is formed below the heating chamber 204. The transport rollers 220 are arranged side by side.
【０００８】この例では、被処理物Ｗが３枚のプレート
２３０，２３２，２３６から成る支持基台２３４及びこ
れと一体に構成された受台２３８上に載せられた状態
で、搬送ローラ２２０により搬送空間２２６を搬送さ
れ、そして加熱室２０４の直下の位置から昇降ロッド２
４０の上昇により、加熱室２０４の下壁に形成された出
入口２２８を通じて加熱室２０４内に挿入される。In this example, the object W to be processed is placed on the support base 234 composed of the three plates 230, 232 and 236 and the receiving base 238 formed integrally with the support base 234, and is conveyed by the conveying roller 220. The elevator rod 2 is transferred from the position directly below the heating chamber 204 while being transferred in the transfer space 226.
By the rise of 40, it is inserted into the heating chamber 204 through the inlet / outlet port 228 formed in the lower wall of the heating chamber 204.
【０００９】ここで支持基台２３４におけるプレート２
３６は蓋を兼ねており、被処理物Ｗを加熱室２０４内に
挿入した状態で出入口２２８を閉鎖する機能を有してい
る。そのためこの蓋を兼ねたプレート２３６は、加熱室
２０４の壁２０６と同種の材料で構成されている。Here, the plate 2 on the support base 234
Reference numeral 36 also serves as a lid, and has a function of closing the inlet / outlet 228 in a state where the object W to be processed is inserted into the heating chamber 204. Therefore, the plate 236 also serving as the lid is made of the same material as the wall 206 of the heating chamber 204.
【００１０】尚上記受台２３８もまた、蓋を兼ねたプレ
ート２３６と同じく高耐熱性が要求されるが、この受台
２３８は高耐熱性と併せて被処理物Ｗを支持する機能も
要求されるため、壁２０６の材料とは異なった耐熱材
料、例えばＣＣコンポジットが好適に用いられる。The pedestal 238 is also required to have high heat resistance similarly to the plate 236 which also serves as a lid, but this pedestal 238 is also required to have a function of supporting the object W to be processed in addition to high heat resistance. Therefore, a heat resistant material different from the material of the wall 206, for example, CC composite is preferably used.
【００１１】[0011]
【発明が解決しようとする課題】この焼結炉２０２の場
合、図８に示す焼結炉２０２の上記問題は改善できるも
のの、この図９に示す焼結炉２０２の場合、蓋を兼ねた
プレート２３６の上面、即ち支持基台２３４上面が加熱
室２０４内部に露出した状態で、加熱室２０４内におけ
る加熱処理が行われることとなるため、バインダ等に由
来する油脂類等の蒸気が支持基台２３４上面に付着して
しまう問題が生ずる。In the case of this sintering furnace 202, although the above problems of the sintering furnace 202 shown in FIG. 8 can be solved, in the case of the sintering furnace 202 shown in FIG. 9, a plate which also serves as a lid. Since the heat treatment is performed in the heating chamber 204 with the upper surface of 236, that is, the upper surface of the support base 234 exposed to the inside of the heating chamber 204, vapors of oils and fats derived from the binder and the like are generated in the support base. There is a problem that it adheres to the upper surface of 234.
【００１２】而して支持基台２３４上面にそのような蒸
気が付着すると、次の加熱室で被処理物Ｗを加熱処理す
る際、その付着した油脂類等が再び次の加熱室内で蒸発
して加熱室内を汚したり、或いは被処理物Ｗがその蒸気
によって汚染されてしまうといった問題が生ずる。以上
焼結炉を中心として説明したが同種の問題は他の用途の
熱処理炉においても共通して生じ得る問題である。When such vapor adheres to the upper surface of the support base 234, when the object W to be processed is heat-treated in the next heating chamber, the adhered oils and fats are evaporated again in the next heating chamber. As a result, there arises a problem that the heating chamber is contaminated or the object W is contaminated by the vapor. Although the above description has been centered on the sintering furnace, the same type of problem is a problem that can commonly occur in heat treatment furnaces for other applications.
【００１３】[0013]
【課題を解決するための手段】本発明の熱処理炉はこの
ような課題を解決するために案出されたものである。而
して請求項１のものは、被処理物を加熱する加熱室の下
方に該被処理物を搬送する搬送空間を設けて、該搬送空
間にローラ，チェーン等の搬送手段を設け、支持基台上
に載せた該被処理物を該支持基台ごと該搬送手段にて前
記加熱室の直下まで搬送したのち、昇降部材にて該被処
理物を該加熱室内に持ち上げて加熱処理し、その後搬送
空間に下降させて該搬送手段により該加熱室の直下から
次の工程に向けて搬送するようになした熱処理炉におい
て、前記支持基台とは別途に前記被処理物を受ける、該
支持基台よりも小形状の受台をそれら支持基台と被処理
物との間に介挿して該被処理物を搬送するようになすと
ともに、該支持基台には該受台の直下の位置に貫通の挿
通開口を設けて、該挿通開口を通じて前記昇降部材によ
り前記被処理物を該受台ごと前記支持基台と切り離して
持ち上げ、前記加熱室内に挿入するようになしたことを
特徴とする。The heat treatment furnace of the present invention has been devised to solve such a problem. According to the first aspect of the present invention, there is provided a carrying space for carrying the object to be processed below the heating chamber for heating the object to be processed, and a carrying means such as a roller or a chain is provided in the carrying space to provide a support base. After the object to be processed placed on a table is conveyed together with the support base to just below the heating chamber by the transfer means, the object to be processed is lifted into the heating chamber by the elevating member and heat treated, In a heat treatment furnace which is moved down into a transfer space and is transferred by a transfer means from directly below the heating chamber toward the next step, the support base for receiving the object to be processed separately from the support base. A pedestal having a smaller size than the pedestal is inserted between the supporting base and the object to be processed so that the object to be processed is conveyed, and the supporting base is provided at a position immediately below the pedestal. The object to be processed is provided with a penetrating insertion opening, and is moved by the elevating member through the insertion opening. Lift separately from the receiving base by the support base, characterized in that none to be inserted into the heating chamber.
【００１４】請求項２のものは、請求項１において、前
記加熱室は、下壁に前記被処理物を出し入れする出入口
が設けてあるとともに、該出入口を開閉する扉が前記支
持基台とは別途に設けてあることを特徴とする。According to a second aspect of the present invention, in the first aspect, the heating chamber has a lower wall provided with an inlet / outlet for inserting / removing the object to be treated, and a door for opening / closing the inlet / outlet is not the support base. It is characterized in that it is provided separately.
【００１５】請求項３のものは、請求項２において、前
記扉は２つ若しくはそれ以上の複数に分割してあって、
各分割体が横方向に進退可能となしてあるとともに、該
扉には、上部が前記加熱室内に挿入された状態の前記昇
降部材に対して閉作動時に嵌り合う開口が形成してある
ことを特徴とする。According to a third aspect of the present invention, in the second aspect, the door is divided into a plurality of two or more,
Each of the divided bodies is capable of moving forward and backward, and the door is formed with an opening that fits into the elevating member with the upper part inserted into the heating chamber at the time of closing operation. Characterize.
【００１６】請求項４のものは、請求項１〜３の何れか
において、前記昇降部材と一体若しくは別体に昇降し、
前記被処理物を前記加熱室内で加熱処理中に、前記支持
基台を前記搬送手段から所定距離浮上げて保持する浮上
げ手段が設けてあることを特徴とする。According to a fourth aspect of the present invention, in any one of the first to third aspects, the lifting / lowering member is integrally lifted or lowered,
During the heat treatment of the object to be treated in the heating chamber, a lifting means is provided for lifting and holding the support base by a predetermined distance from the transfer means.
【００１７】請求項５のものは、請求項１〜４の何れか
において、前記昇降部材は昇降ロッドから成っていて、
前記加熱室内に挿入される上部と下部とが別材料で構成
してあり、それら上部と下部との間に断熱材が介挿して
あることを特徴とする。According to a fifth aspect of the present invention, in any one of the first to fourth aspects, the elevating member comprises an elevating rod,
An upper part and a lower part to be inserted into the heating chamber are made of different materials, and a heat insulating material is interposed between the upper part and the lower part.
【００１８】[0018]
【作用及び発明の効果】上記のように本発明は、受台の
直下の位置において支持基台に貫通の挿通開口を設け、
その挿通開口を通じて昇降部材により被処理物を受台ご
と支持基台と切り離して持ち上げ、加熱室内に挿入する
ようになしたもので、この熱処理炉にあっては、加熱室
内で被処理物を加熱処理する際、被処理物から発生した
油脂類等の蒸気が支持基台上面に付着するといったこと
がなく、従って被処理物を支持基台ごと次の工程へ運ん
で、再び被処理物を加熱処理する際、前の加熱室で付着
した蒸気が再びそこで蒸発して次の加熱室を汚染したり
或いは被処理物自体を汚染したりするといった問題を解
決することができる。As described above, according to the present invention, the support base is provided with the through-insertion opening at the position immediately below the pedestal,
Through the insertion opening, the object to be treated is lifted separately from the support base together with the pedestal by the elevating member and inserted into the heating chamber.In this heat treatment furnace, the object to be treated is heated in the heating chamber. During processing, vapor such as oils and fats generated from the object to be processed does not adhere to the upper surface of the support base. Therefore, the object to be processed is carried to the next process together with the support base, and the object is heated again. It is possible to solve the problem that during the processing, the vapor deposited in the previous heating chamber evaporates again there and contaminates the next heating chamber or the object to be treated itself.
【００１９】請求項２のものは、加熱室の下壁に設け
た、被処理物の出し入れのため出入口を開閉する扉を上
記支持基台とは別途に設けたもので、このようになすこ
とで、加熱室を実質的に閉じた状態の下で被処理物に対
し加熱処理を施すことができる。According to a second aspect of the present invention, a door provided on the lower wall of the heating chamber for opening and closing the entrance for loading and unloading the object to be treated is provided separately from the support base. Thus, the object to be processed can be heat-treated under the condition that the heating chamber is substantially closed.
【００２０】またこの扉は被処理物を支持する機能を持
たせる必要がないため、加熱室の壁を構成する材料と同
種の比較的軟らかい材料で構成しておくことができる。Since this door does not need to have a function of supporting the object to be processed, it can be made of a relatively soft material similar to the material of the wall of the heating chamber.
【００２１】一方受台は被処理物と一緒に加熱室内に挿
入され、そのまま再び次の加熱室へと搬入されることと
なるが、この受台は加熱室の扉を兼用させる必要がない
ため、ＣＣコンポジット等蒸気が侵入し難い材料を用い
ることができる。従って受台に蒸気が付着して次の加熱
処理の際に悪影響を及ぼすといった問題は回避できる。On the other hand, the pedestal is inserted into the heating chamber together with the object to be treated, and is carried into the next heating chamber again as it is, but this pedestal does not have to serve as the door of the heating chamber. , A material such as CC composite that vapor hardly penetrates can be used. Therefore, it is possible to avoid the problem that steam adheres to the pedestal and adversely affects the next heat treatment.
【００２２】ここで上記扉は二つ若しくはそれ以上の複
数に分割した形態で構成し、各分割体を横方向に進退さ
せることで出入口を開閉するようになすことができる
（請求項３）。その際、扉には閉作動時に昇降部材に対
して嵌り合う開口を形成しておくことができる。このよ
うにすることで、昇降部材の上部を加熱室内に挿入した
状態の下で出入口を実質的に閉鎖することができる。Here, the door may be constructed in a form of being divided into a plurality of two or more pieces, and the doorway may be opened and closed by moving each divided body forward and backward (claim 3). At that time, the door may be formed with an opening that fits into the elevating member during the closing operation. By doing so, the entrance / exit can be substantially closed while the upper part of the elevating member is inserted into the heating chamber.
【００２３】ところで、本発明に従って被処理物を受台
とともに支持基台から切り離して持ち上げるようにした
場合、加熱室での被処理物の加熱処理中に、支持基台が
ローラ等の搬送手段上に残ってしまうことになる。この
場合ローラ等搬送手段を停止しておけばよいが、但しそ
のようにすると加熱室から発生した蒸気等がローラ軸受
等に付着してローラが固着してしまい、次にローラを回
転させようとしたときにローラが円滑に回転しない不具
合の発生することが判明した。By the way, according to the present invention, when the object to be treated is separated from the support base together with the pedestal and lifted, the support base is placed on the conveying means such as rollers during the heat treatment of the object to be treated in the heating chamber. Will be left in. In this case, it suffices to stop the transportation means such as the rollers. However, if this is done, steam or the like generated from the heating chamber will adhere to the roller bearings and the like, and the rollers will be fixed, and the rollers will be rotated next. It was found that the roller did not rotate smoothly when it did.
【００２４】ここにおいて請求項４のものは、加熱処理
中に支持基台を搬送手段から所定距離浮き上げて保持す
る浮上げ手段を、昇降部材と一体若しくは別体に昇降す
るように設けたもので、このようになしておくことで、
ローラ等の搬送手段の搬送動作を継続しながら、支持基
台が加熱処理中に移動してしまうのを防止することがで
きる。According to a fourth aspect of the present invention, the lifting means for lifting and holding the support base by a predetermined distance from the carrying means during the heat treatment is provided so as to move up and down integrally with the lifting member or separately. By doing this,
It is possible to prevent the support base from moving during the heat treatment while continuing the carrying operation of the carrying means such as rollers.
【００２５】次に請求項５のものは、昇降部材を昇降ロ
ッドにて構成し、そして加熱室内に挿入される上部と加
熱室外に位置する下部とを別材料で構成し且つそれらの
間に断熱材を介挿したもので、このようになしておけ
ば、高温に加熱された上部から低温状態の下部への熱の
伝達を良好に遮断することができ、熱ロスを少なく抑え
ることができる。Next, in the fifth aspect of the present invention, the elevating member is composed of an elevating rod, and the upper part inserted into the heating chamber and the lower part located outside the heating chamber are composed of different materials, and heat insulation is provided between them. By inserting the material in this way, it is possible to satisfactorily block the transfer of heat from the upper portion heated to a high temperature to the lower portion in a low temperature state, and to suppress the heat loss.
【００２６】[0026]
【実施例】次に本発明の実施例を図面に基づいて詳しく
説明する。図１及び図２において、１０は連続式の真空
焼結炉（熱処理炉）で、炉体１２を有しており、その内
部に加熱室１４が設けられている。またその加熱室１４
の下側には搬送空間を成す下室１６が形成されている。Embodiments of the present invention will now be described in detail with reference to the drawings. 1 and 2, reference numeral 10 denotes a continuous vacuum sintering furnace (heat treatment furnace) having a furnace body 12 in which a heating chamber 14 is provided. Also, the heating chamber 14
A lower chamber 16 that forms a transfer space is formed on the lower side.
【００２７】加熱室１４の内部には、ヒータ１８がその
側周壁の内面に沿って実質的に全周に配設されている。
また加熱室１４の壁１５の下壁には、被処理物Ｗの出入
口２０が設けられており、その出入口２０が、扉２２に
て開閉されるようになっている。ここで扉２２は、図４
に示しているように２分割されており、それぞれの半体
２２Ａ，２２Ａに半円形状の凹所２４が形成されてい
る。この凹所２４，２４は、半体２２Ａ，２２Ａを閉じ
合せたときに円形の開口を形成し、その開口において後
述の昇降ロッド４６に所定の隙間をもって嵌り合うよう
になっている。Inside the heating chamber 14, a heater 18 is disposed substantially all around the inner surface of the side peripheral wall thereof.
An inlet / outlet port 20 for the workpiece W is provided on the lower wall of the wall 15 of the heating chamber 14, and the inlet / outlet port 20 is opened and closed by a door 22. Here, the door 22 is shown in FIG.
As shown in FIG. 3, the two halves 22A, 22A are each formed with a semicircular recess 24. The recesses 24, 24 form a circular opening when the halves 22A, 22A are closed together, and are fitted in the opening rod 46, which will be described later, with a predetermined gap in the opening.
【００２８】下室１６には、入口２６と出口２８とが設
けられており、それぞれが扉３０によって開閉されるよ
うになっている。ここで扉３０は開閉装置３２によって
開閉される。この開閉装置３２は駆動シリンダ３４を有
しており、そのロッド３５に対し扉３０が平行リンク３
６を介して連結されている。搬送室１６には、搬送ロー
ラ３８が所定間隔ごとに水平方向に並設されている。The lower chamber 16 is provided with an inlet 26 and an outlet 28, each of which is opened and closed by a door 30. Here, the door 30 is opened and closed by the opening / closing device 32. The opening / closing device 32 has a driving cylinder 34, and the door 30 is parallel to the rod 35 of the driving cylinder 34.
It is connected via 6. In the transfer chamber 16, transfer rollers 38 are arranged in parallel in the horizontal direction at predetermined intervals.
【００２９】上記被処理物Ｗは、この搬送ローラ３８に
よって支持基台（この例ではプレート状）４０とともに
図中左から右に向けて搬送される。この支持基台４０と
被処理物Ｗとの間には、支持基台４０よりも小形状の受
台４２が介挿されており、被処理物Ｗはこの受台４２ご
と、後述する昇降ロッド４６にて加熱室１４内に持ち上
げられ挿入される。The object W to be processed is carried by the carrying roller 38 from the left side to the right side in the drawing together with the support base (plate-shaped in this example) 40. A pedestal 42 having a smaller shape than the support pedestal 40 is interposed between the support base 40 and the object W to be processed. At 46, the heating chamber 14 is lifted and inserted.
【００３０】ここで受台４２は、被処理物Ｗを支持する
機能が要求されることから、また被処理物Ｗとともに加
熱室１４内に挿入されることから高耐熱材料且つ比較的
硬い材料、ここではＣＣコンポジットにて構成されてい
る。Since the pedestal 42 is required to have a function of supporting the object W to be processed and is inserted into the heating chamber 14 together with the object W to be processed, it is a high heat resistant material and a relatively hard material. Here, it is composed of a CC composite.
【００３１】一方上記扉２２は被処理物Ｗを支持する機
能が要求されず、加熱室１４の壁１５と同種の材料、こ
こではカーボン繊維の成形体にて構成されている。On the other hand, the door 22 is not required to have a function of supporting the object W to be processed, and is made of the same material as that of the wall 15 of the heating chamber 14, that is, a molded body of carbon fiber in this case.
【００３２】上記支持基台４０には受台４２の直下の位
置において昇降ロッド４６の大径の頭部５４を通過させ
る貫通の挿通開口４４が形成されている。被処理物Ｗ
は、この受台４２とともに挿通開口４４を挿通して上昇
する昇降ロッド４６の大径の頭部５４にて支持され、加
熱室１４へと挿入される。The support base 40 is formed with an insertion opening 44 through which a large-diameter head portion 54 of the elevating rod 46 passes at a position immediately below the receiving base 42. Workpiece W
Is supported by a large-diameter head portion 54 of an elevating rod 46 that rises through the insertion opening 44 together with the pedestal 42, and is inserted into the heating chamber 14.
【００３３】被処理物Ｗを昇降させる上記昇降ロッド
（昇降部材）４６は、加熱室１４内部に挿入される上部
４８とその下側の下部５０とが別々の材料で構成されて
いる。具体的には上部４８が耐熱性のＣＣコンポジット
で、また下部５０が金属にて構成されている。この金属
から成る下部５０は水冷構造とされている。In the elevating rod (elevating member) 46 for elevating the object W to be processed, the upper part 48 inserted into the heating chamber 14 and the lower part 50 below the upper part 48 are made of different materials. Specifically, the upper part 48 is made of heat resistant CC composite, and the lower part 50 is made of metal. The lower part 50 made of this metal has a water cooling structure.
【００３４】而してこれら上部４８と下部５０との間に
は、図５に拡大して示すようにセラミック等から成る断
熱材５２が介挿されており、上部４８から下部５０への
熱の伝達がここで遮断されるようになっている。尚上部
４８の上端には、上記のように大径の頭部５４が設けら
れている。昇降ロッド４６にはまた、下部５０において
支持基台４０を搬送ローラ３８から所定距離浮き上げる
ための大径の浮上げ部５６が一体に形成されている。こ
の浮上げ部５６の上面には、支持基台４０の下面に当接
する突起５８が複数箇所に設けられている。A heat insulating material 52 made of ceramic or the like is interposed between the upper portion 48 and the lower portion 50 as shown in an enlarged view in FIG. Transmission is now blocked. A large-diameter head portion 54 is provided on the upper end of the upper portion 48 as described above. The lifting rod 46 is also integrally formed with a large-diameter lifting portion 56 for lifting the support base 40 from the transport roller 38 at a lower portion 50 by a predetermined distance. On the upper surface of the floating portion 56, projections 58 that come into contact with the lower surface of the support base 40 are provided at a plurality of locations.
【００３５】図２において、６０は昇降ロッド４６を昇
降駆動する昇降装置で、駆動シリンダ６２のロッド６４
と昇降ロッド４６とを連結する連結体６６とを有してい
る。昇降ロッド４６は、この駆動シリンダ６２の伸縮動
作によって昇降作動させられる。In FIG. 2, reference numeral 60 denotes an elevating device for vertically moving the elevating rod 46, which is a rod 64 of the drive cylinder 62.
And a connecting body 66 that connects the lifting rod 46 to each other. The elevating rod 46 is moved up and down by the expansion and contraction of the drive cylinder 62.
【００３６】次に本例の焼結炉の作用を図１，図６及び
図７に基づいて説明する。被処理物Ｗは、受台４２によ
り支持された状態で支持基台４０とともに搬送ローラ３
８の回転により加熱室１４の下側の下室１６に搬送され
る。そして被処理物Ｗが加熱室１４の直下に位置したと
ころで、図６に示すように昇降ロッド４６が上昇作動
し、扉２２の開作動により開放された出入口２０を通じ
て被処理物Ｗが加熱室１４内に挿入される。このとき、
昇降ロッド４６は支持基台４０の挿通開口４４を挿通し
て被処理物Ｗを受台４２ごと持ち上げ、加熱室１４内部
に挿入する。その際、図７に示すように昇降ロッド５０
に一体に設けられた浮上げ部５６が支持基台４０の下面
を搬送ローラ３８より所定微小距離浮き上げ、回転を続
ける搬送ローラ３８によって、被処理物Ｗ及び受台４２
から分離された支持基台４０が図１中前方へと送られ移
動してしまうのを防止する。Next, the operation of the sintering furnace of this example will be described with reference to FIGS. 1, 6 and 7. The object W to be processed is supported by the receiving table 42 and the supporting base 40 together with the conveying roller 3
It is conveyed to the lower chamber 16 below the heating chamber 14 by the rotation of 8. Then, when the object W to be processed is located immediately below the heating chamber 14, as shown in FIG. 6, the elevating rod 46 moves upward, and the object W to be processed is passed through the doorway 20 opened by the opening operation of the door 22. Inserted inside. At this time,
The elevating rod 46 is inserted through the insertion opening 44 of the support base 40, lifts the workpiece W together with the pedestal 42, and inserts it into the heating chamber 14. At that time, as shown in FIG.
The floating portion 56 integrally provided on the upper surface lifts the lower surface of the support base 40 from the transport roller 38 by a predetermined minute distance, and the transport roller 38 that continues to rotate causes the workpiece W and the pedestal 42 to move.
The support base 40 separated from the above is prevented from being moved to the front side in FIG.
【００３７】さて図７に示しているように被処理物Ｗが
加熱室１４内に挿入されるとともに扉２２が閉作動し、
この状態で被処理物Ｗは加熱室１４内に所定時間保持さ
れてヒータ１８による加熱を受ける。即ち被処理物Ｗは
加熱室１４内で加熱処理される。尚このとき、加熱室１
４内部は真空状態に保持され、その真空下で加熱処理さ
れる。Now, as shown in FIG. 7, the workpiece W is inserted into the heating chamber 14 and the door 22 is closed,
In this state, the workpiece W is held in the heating chamber 14 for a predetermined time and heated by the heater 18. That is, the workpiece W is heat-treated in the heating chamber 14. At this time, the heating chamber 1
The inside of 4 is maintained in a vacuum state, and is heat-treated under the vacuum.
【００３８】所定時間の加熱処理を終えたところで、図
６に示しているように２分割形態の扉２２が開作動し、
これとともに昇降ロッド４６が下降運動して、加熱処理
後の被処理物Ｗを受台４２ごと再び支持基台４０上に載
せる。尚このとき浮上げ部５６もまた下降しているた
め、支持基台４０は再び搬送ローラ３８の上に載った状
態となって、搬送ローラ３８の継続回転に伴って図１中
右方に送られて行く。When the heat treatment for a predetermined time is completed, the door 22 of the two-part form is opened as shown in FIG.
Along with this, the elevating rod 46 moves downward, and the workpiece W after the heat treatment is placed on the support base 40 again together with the pedestal 42. At this time, since the floating portion 56 is also lowered, the support base 40 is placed on the transport roller 38 again, and is fed to the right in FIG. 1 as the transport roller 38 continues to rotate. Go away.
【００３９】以上のような本例の真空焼結炉１０にあっ
ては、被処理物Ｗが支持基台４０と切り離して持ち上げ
られ、更にまた加熱室１４の出入口２０を開閉する扉２
２が支持基台４０とは別途に設けられているため、加熱
室１４内で被処理物Ｗを加熱処理する際、被処理物Ｗか
ら発生した油脂類等の蒸気が支持基台４０上面に付着す
るといったことがなく、従って被処理物Ｗを支持基台４
０ごと次の工程へ運んで再び被処理物Ｗを加熱処理する
際、前の加熱室１４で付着した蒸気が再びそこで蒸発し
て次の加熱室を汚染したり或いは被処理物Ｗ自体を汚染
したりするといった問題を解決することができる。In the vacuum sintering furnace 10 of the present embodiment as described above, the object W to be processed is lifted off from the support base 40, and the door 2 for opening and closing the entrance 20 of the heating chamber 14 is further opened.
Since 2 is provided separately from the support base 40, when the object W to be processed is heated in the heating chamber 14, vapors of oils and fats generated from the object W to be processed are deposited on the upper surface of the support base 40. There is no sticking, and therefore the workpiece W is supported by the support base 4
When it is carried to the next step by 0 and the object to be processed W is heat-treated again, the vapor adhering in the previous heating chamber 14 evaporates again there to contaminate the next heating chamber or the object to be processed W itself. You can solve problems such as
【００４０】また本例では加熱処理中に支持基台４０を
搬送ローラ３８から所定距離浮き上げて保持する浮上げ
部５６が昇降ロッド４６に設けてあるため、搬送ローラ
３８の搬送動作を継続しながら、支持基台４０が加熱処
理中に移動してしまうといった不都合を防止できる。Further, in this embodiment, since the lifting rod 46 is provided with the lifting portion 56 that lifts and holds the support base 40 from the transport roller 38 by a predetermined distance during the heat treatment, the transport operation of the transport roller 38 is continued. However, the inconvenience that the support base 40 moves during the heat treatment can be prevented.
【００４１】更に本例では昇降ロッドにおける上部４８
と加熱室１４外に位置する下部５０とが別材料で構成さ
れ、そしてそれらの間に断熱材５２が介挿されているた
め、高温に加熱された上部４８から低温状態の下部５０
への熱の伝達が良好に遮断されて熱ロスが少なく抑えら
れる。Further, in this example, the upper portion 48 of the lifting rod is
Since the lower part 50 located outside the heating chamber 14 is made of a different material, and the heat insulating material 52 is interposed between them, the upper part 48 heated to a high temperature to the lower part 50 in a low temperature state.
The heat transfer to the device is well blocked, and the heat loss is suppressed to a small level.
【００４２】以上本発明の実施例を詳述したがこれはあ
くまで一例示である。例えば本発明はバッチ式の熱処理
炉に適用することも可能であるし、或いはまた上例のよ
うな焼結炉以外の他の様々な目的の熱処理炉に適用する
ことも可能であるなど、その主旨を逸脱しない範囲にお
いて種々変更を加えた形態で構成可能である。Although the embodiment of the present invention has been described in detail above, this is merely an example. For example, the present invention can be applied to a batch type heat treatment furnace, or can also be applied to heat treatment furnaces for various purposes other than the sintering furnace as in the above example. It can be configured in a form in which various changes are made without departing from the spirit of the invention.
【図面の簡単な説明】[Brief description of drawings]
【図１】本発明の一実施例である焼結炉の要部正面断面
図である。FIG. 1 is a front sectional view of a main part of a sintering furnace which is an embodiment of the present invention.
【図２】同じ実施例の要部側面断面図である。FIG. 2 is a side sectional view of an essential part of the same embodiment.
【図３】同実施例における被処理物Ｗを受台及び支持基
台にて支持した状態を示す図である。FIG. 3 is a diagram showing a state in which an object W to be processed in the embodiment is supported by a receiving table and a supporting base.
【図４】同実施例における２分割式の扉の要部をその周
辺部とともに示す図である。FIG. 4 is a view showing a main part of a two-part split type door and its peripheral part in the embodiment.
【図５】同実施例における昇降ロッドの要部を示す図で
ある。FIG. 5 is a view showing a main part of an elevating rod according to the embodiment.
【図６】同実施例の一作用状態を示す図である。FIG. 6 is a view showing one operation state of the same embodiment.
【図７】同実施例の図６とは異なる作用状態を示す図で
ある。FIG. 7 is a diagram showing an operation state different from that of FIG. 6 of the same embodiment.
【図８】従来の熱処理炉の一例を示す図である。FIG. 8 is a diagram showing an example of a conventional heat treatment furnace.
【図９】従来の熱処理炉の図８とは異なる例を示す図で
ある。FIG. 9 is a diagram showing an example different from that of FIG. 8 of a conventional heat treatment furnace.
１０ 真空焼結炉（熱処理炉） １４ 加熱室 １６ 下室 ２０ 出入口 ２２ 扉 ２２Ａ 半体 ２４ 凹所 ３８ 搬送ローラ ４０ 支持基台 ４２ 受台 ４４ 挿通開口 ４６ 昇降ロッド ４８ 上部 ５０ 下部 ５６ 浮上げ部 ５８ 突起 ６０ 昇降装置 Ｗ 被処理物 10 Vacuum sintering furnace (heat treatment furnace) 14 heating chamber 16 lower chamber 20 gateway 22 doors 22A half 24 recess 38 Conveyor rollers 40 support base 42 pedestal 44 insertion opening 46 Lifting rod 48 top 50 lower part 56 Lifting part 58 Protrusion 60 Lifting device W to be processed
───────────────────────────────────────────────────── フロントページの続き (72)発明者 松本 則幸 愛知県名古屋市熱田区六野一丁目２番５号 大同特殊鋼株式会社高蔵製作所内 Ｆターム(参考） 4K055 AA06 HA08 HA11 HA29 4K061 AA01 AA05 BA02 CA21 DA05 EA10 FA12 ─────────────────────────────────────────────────── ─── Continued front page (72) Inventor Noriyuki Matsumoto 1-2-5 Rokuno, Atsuta-ku, Nagoya-shi, Aichi Daido Steel Co., Ltd., Kozo Works F-term (reference) 4K055 AA06 HA08 HA11 HA29 4K061 AA01 AA05 BA02 CA21 DA05 EA10 FA12
Claims (5)
処理物を搬送する搬送空間を設けて、該搬送空間にロー
ラ，チェーン等の搬送手段を設け、支持基台上に載せた
該被処理物を該支持基台ごと該搬送手段にて前記加熱室
の直下まで搬送したのち、昇降部材にて該被処理物を該
加熱室内に持ち上げて加熱処理し、その後搬送空間に下
降させて該搬送手段により該加熱室の直下から次の工程
に向けて搬送するようになした熱処理炉において、 前記支持基台とは別途に前記被処理物を受ける、該支持
基台よりも小形状の受台をそれら支持基台と被処理物と
の間に介挿して該被処理物を搬送するようになすととも
に、該支持基台には該受台の直下の位置に貫通の挿通開
口を設けて、該挿通開口を通じて前記昇降部材により前
記被処理物を該受台ごと前記支持基台と切り離して持ち
上げ、前記加熱室内に挿入するようになしたことを特徴
とする熱処理炉。1. A transfer space for transferring the object to be processed is provided below a heating chamber for heating the object to be processed, and a transfer means such as a roller or a chain is provided in the transfer space and placed on a support base. After the object to be processed is transferred together with the support base to just below the heating chamber by the transfer means, the object to be processed is lifted into the heating chamber by the elevating member for heat treatment, and then lowered to the transfer space. In a heat treatment furnace configured to convey the material from directly below the heating chamber to the next step by the conveying means, the object to be treated is received separately from the supporting base and has a smaller shape than the supporting base. The pedestal is inserted between the supporting base and the object to be processed so that the object to be processed is conveyed, and the supporting base is provided with a penetrating insertion opening at a position immediately below the pedestal. The elevating member is provided with the object to be processed through the insertion opening. The lifting separately from the support base, a heat treatment furnace, characterized in that none to be inserted into the heating chamber.
に前記被処理物を出し入れする出入口が設けてあるとと
もに、該出入口を開閉する扉が前記支持基台とは別途に
設けてあることを特徴とする熱処理炉。2. The heating chamber according to claim 1, wherein the heating chamber has a lower wall provided with an entrance for taking in and out the object to be treated, and a door for opening and closing the entrance is provided separately from the support base. A heat treatment furnace characterized by that.
はそれ以上の複数に分割してあって、各分割体が横方向
に進退可能となしてあるとともに、該扉には、上部が前
記加熱室内に挿入された状態の前記昇降部材に対して閉
作動時に嵌り合う開口が形成してあることを特徴とする
熱処理炉。3. The door according to claim 2, wherein the door is divided into two or more, and each divided body is capable of advancing and retracting in a lateral direction, and the door has an upper portion. A heat treatment furnace, characterized in that an opening is formed which is fitted into the elevating member inserted into the heating chamber during a closing operation.
降部材と一体若しくは別体に昇降し、前記被処理物を前
記加熱室内で加熱処理中に、前記支持基台を前記搬送手
段から所定距離浮上げて保持する浮上げ手段が設けてあ
ることを特徴とする熱処理炉。4. The support base according to claim 1, wherein the support base is moved from the transfer means during the heat treatment of the workpiece in the heating chamber by raising or lowering the lift member integrally or separately. A heat treatment furnace, characterized in that it is provided with lifting means for lifting and holding a predetermined distance.
降部材は昇降ロッドから成っていて、前記加熱室内に挿
入される上部と下部とが別材料で構成してあり、それら
上部と下部との間に断熱材が介挿してあることを特徴と
する熱処理炉。5. The elevating member according to claim 1, wherein the elevating member comprises an elevating rod, and an upper part and a lower part to be inserted into the heating chamber are made of different materials. A heat treatment furnace having a heat insulating material interposed between the heat treatment furnace and the heat treatment material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001382374A JP2003185344A (en) | 2001-12-14 | 2001-12-14 | Heat-treating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001382374A JP2003185344A (en) | 2001-12-14 | 2001-12-14 | Heat-treating furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003185344A true JP2003185344A (en) | 2003-07-03 |
Family
ID=27592734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001382374A Pending JP2003185344A (en) | 2001-12-14 | 2001-12-14 | Heat-treating furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003185344A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011208842A (en) * | 2010-03-29 | 2011-10-20 | Finesinter Co Ltd | Continuous sintering furnace |
| CN103105054A (en) * | 2012-12-24 | 2013-05-15 | 苏州工业园区杰士通真空技术有限公司 | Vacuum sintering furnace trapping system |
| CN105067657A (en) * | 2015-08-27 | 2015-11-18 | 马鞍山钢铁股份有限公司 | Iron ore sintering high-temperature characteristic detection device and detection method thereof |
| KR101833039B1 (en) * | 2016-11-29 | 2018-03-02 | 아진산업(주) | Prepreg preheating system |
-
2001
- 2001-12-14 JP JP2001382374A patent/JP2003185344A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011208842A (en) * | 2010-03-29 | 2011-10-20 | Finesinter Co Ltd | Continuous sintering furnace |
| CN103105054A (en) * | 2012-12-24 | 2013-05-15 | 苏州工业园区杰士通真空技术有限公司 | Vacuum sintering furnace trapping system |
| CN105067657A (en) * | 2015-08-27 | 2015-11-18 | 马鞍山钢铁股份有限公司 | Iron ore sintering high-temperature characteristic detection device and detection method thereof |
| KR101833039B1 (en) * | 2016-11-29 | 2018-03-02 | 아진산업(주) | Prepreg preheating system |
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