JP2000130953A - Heat treating furnace - Google Patents
Heat treating furnaceInfo
- Publication number
- JP2000130953A JP2000130953A JP10302956A JP30295698A JP2000130953A JP 2000130953 A JP2000130953 A JP 2000130953A JP 10302956 A JP10302956 A JP 10302956A JP 30295698 A JP30295698 A JP 30295698A JP 2000130953 A JP2000130953 A JP 2000130953A
- Authority
- JP
- Japan
- Prior art keywords
- heat
- heat insulating
- roller
- processing chamber
- furnace
- 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
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は熱処理炉、特に被処
理材を複数のローラで搬送するようにした熱処理炉に関
する。被処理材として金属材料を焼入れ、焼鈍、焼結或
は浸炭したり、更にはセラミックス材料を焼成するよう
な場合、それらの搬送手段として複数のローラを敷設し
た熱処理炉が使用される。本発明はかかる熱処理炉の改
良に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat treatment furnace, and more particularly to a heat treatment furnace in which a material to be processed is transported by a plurality of rollers. In the case of quenching, annealing, sintering or carburizing a metal material as a material to be processed, or firing a ceramic material, a heat treatment furnace having a plurality of rollers laid thereon is used as a means for transporting the material. The present invention relates to the improvement of such a heat treatment furnace.
【０００２】[0002]
【従来の技術】従来、上記のような熱処理炉として、雰
囲気炉、真空炉、これらのバッチ炉或は連続炉等、各種
の形態のものが使用されている（特開昭６１−２７２５
８６、実開平２−４４６９３）。これらの熱処理炉は、
被処理材の搬送手段として複数のローラを備えており、
また一つ又は二つ以上の断熱扉を備えている。断熱扉は
熱処理炉の装入扉、装出扉或は中間扉として使用され、
これらで被処理材の処理条件に応じた雰囲気の処理室を
区画するようになっている。2. Description of the Related Art Conventionally, various types of heat treatment furnaces, such as atmosphere furnaces, vacuum furnaces, batch furnaces or continuous furnaces, have been used as the above-mentioned heat treatment furnaces (JP-A-61-2725).
86, Japanese Utility Model Laid-Open No. 2-44693). These heat treatment furnaces
Equipped with a plurality of rollers as a conveying means of the material to be processed,
It also has one or more insulated doors. Insulated doors are used as loading doors, loading doors or intermediate doors of heat treatment furnaces,
With these, a processing chamber having an atmosphere corresponding to the processing conditions of the material to be processed is partitioned.
【０００３】ところが、かかる従来の熱処理炉には、次
のような問題がある。 １）一般にローラのピッチは、被処理材を円滑に搬送す
るため、該被処理材の長さの１／３以下に設定されてい
る。一方、処理室における熱損失を少なくするために
は、処理室を区画する断熱扉を相応に厚くする必要があ
る。しかし、断熱扉を厚くすると、その前後でローラの
ピッチがそれだけ広がるため、被処理材を円滑に搬送で
きなくなる。そこで従来は、断熱扉の前後でも被処理材
を円滑に搬送するため、該断熱扉の厚みをあえて抑えて
いるのが実情であるが、これでは熱損失が大きい。 ２）断熱扉を厚くし、相応に熱損失を少なくする一方
で、該断熱扉の前後でも被処理材を円滑に搬送するた
め、該断熱扉の前後に亘り別の搬送手段、例えばハンガ
を設けて、被処理材をローラ→ハンガ→ローラで搬送す
ることも試みられているが、これでは炉内構造が著しく
複雑になり、製作費も嵩む。 ３）断熱扉を厚くし、相応に熱損失を少なくする一方
で、該断熱扉の前後でも被処理材を円滑に搬送するた
め、被処理材を長尺なトレイに載置して搬送することも
試みられているが、これでは長尺なトレイが必要である
だけでなく、必然的に炉長も長くなり、雰囲気ガスも多
量に必要となるので、結局は熱損失が大きく、製作費や
運転費も嵩む。However, such a conventional heat treatment furnace has the following problems. 1) In general, the pitch of the rollers is set to 1/3 or less of the length of the material to be processed in order to smoothly transport the material. On the other hand, in order to reduce the heat loss in the processing chamber, it is necessary to make the heat-insulating door dividing the processing chamber thicker. However, if the heat-insulating door is made thicker, the pitch of the rollers before and after it becomes wider, so that the material to be processed cannot be transported smoothly. Therefore, conventionally, in order to smoothly transport the material to be processed before and after the heat insulating door, the thickness of the heat insulating door is intentionally suppressed, but this causes a large heat loss. 2) To increase the thickness of the heat-insulating door and reduce the heat loss accordingly, another conveying means, for example, a hanger is provided before and after the heat-insulating door in order to smoothly convey the material to be processed before and after the heat-insulating door. Attempts have been made to transport the material to be processed by a roller → a hanger → a roller. However, this requires an extremely complicated structure in the furnace and increases production costs. 3) To increase the thickness of the heat-insulating door and reduce the heat loss accordingly, and to transport the material to be processed smoothly before and after the heat-insulating door, place the material to be processed on a long tray and transport it. However, this requires not only a long tray, but also a long furnace length and a large amount of atmospheric gas, which results in a large heat loss, Operating costs also increase.
【０００４】[0004]
【発明が解決しようとする課題】本発明が解決しようと
する課題は、被処理材をローラ搬送する従来の熱処理炉
では、結局のところは熱損失が大きく、製作費や運転費
が嵩む点である。The problem to be solved by the present invention is that the conventional heat treatment furnace which conveys the material to be processed by rollers consequently has a large heat loss and increases the production and operation costs. is there.
【０００５】[0005]
【課題を解決するための手段】上記の課題を解決する本
発明は、被処理材を複数のローラで搬送するようにした
熱処理炉において、被処理材の処理室を区画する部分に
もローラを設け、該ローラを該処理室を区画する断熱扉
及び／又は該断熱扉と相対する断熱壁で覆うようにして
成ることを特徴とする熱処理炉に係る。SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a heat treatment furnace in which a material to be processed is transported by a plurality of rollers. A heat treatment furnace, wherein the roller is covered with a heat insulating door that partitions the processing chamber and / or a heat insulating wall facing the heat insulating door.
【０００６】本発明に係る熱処理炉でも、炉内から炉外
に亘って、被処理材を搬送する複数のローラが敷設され
ている。本発明に係る熱処理炉では、被処理材の処理室
を区画する部分にもローラが設けられており、該ローラ
は該処理室を区画する断熱扉及び／又は該断熱扉と相対
する断熱壁で覆うように成っている。このようにローラ
を覆う手段としては、１）断熱扉の端面に溝を設け、こ
の溝と断熱壁との間でローラを覆う手段、２）断熱壁の
端面に溝を設け、この溝でローラを覆う手段、３）断熱
扉及び断熱壁の双方の端面に溝を設け、これらの溝でロ
ーラを覆う手段がある。In the heat treatment furnace according to the present invention, a plurality of rollers for transporting the material to be processed are laid from inside the furnace to outside the furnace. In the heat treatment furnace according to the present invention, a roller is also provided in a portion that partitions the processing chamber of the material to be processed, and the roller is a heat insulating door that partitions the processing chamber and / or a heat insulating wall that faces the heat insulating door. It is made to cover. As means for covering the roller in this way, 1) means for providing a groove on the end face of the heat insulating door, and means for covering the roller between the groove and the heat insulating wall, and 2) providing a groove on the end face of the heat insulating wall. 3) There are means for providing grooves on both end surfaces of the heat insulating door and the heat insulating wall, and covering the rollers with these grooves.
【０００７】本発明が適用される熱処理炉は、雰囲気
炉、真空炉、これらのバッチ炉或は連続炉である。いず
れも、炉内には断熱扉で処理室が区画されている。バッ
チ炉の場合、断熱扉は装入扉或は装出扉として使用さ
れ、また連続炉の場合、更に中間扉としても使用され
る。連続炉には、一つの炉内に複数の処理室が区画され
たものと、形態としては独立して存在する複数の処理室
が搬送ローラで連係されたものとが含まれる。通常、前
者の連続炉の場合、断熱扉は装入扉、装出扉及び前後に
連なる各処理室を区画する中間扉として使用され、また
後者の連続炉の場合、独立して存在する各処理室を形成
する装入扉及び装出扉として使用される。The heat treatment furnace to which the present invention is applied is an atmosphere furnace, a vacuum furnace, a batch furnace or a continuous furnace thereof. In each case, the processing chamber is partitioned by a heat insulating door in the furnace. In the case of a batch furnace, the insulated door is used as a loading or unloading door, and in the case of a continuous furnace, it is also used as an intermediate door. The continuous furnace includes a furnace in which a plurality of processing chambers are partitioned in one furnace, and a furnace in which a plurality of processing chambers that exist independently in form are linked by a transport roller. Usually, in the case of the former continuous furnace, the heat-insulating door is used as a loading door, a loading door, and an intermediate door that partitions each processing chamber connected to the front and rear. Used as loading and unloading doors to form a chamber.
【０００８】本発明に係る熱処理炉では、前述したよう
に、上記のような断熱扉を臨む部分にもローラが設けら
れており、このローラを断熱扉及び／又は該断熱扉と相
対する断熱壁で覆うように成っている。したがって本発
明によると、断熱扉を厚くし、相応に熱損失を少なくで
きると同時に、該断熱扉の前後でも被処理材を円滑に搬
送できる。ハンガのような別の搬送手段は必要でなく、
また長尺なトレイも必要でないので、炉内構造をいたず
らに複雑化せず、製作費及び運転費も嵩まない。バッチ
炉に比べて連続炉は、断熱扉の前後に亘って被処理材を
搬送する機会が多いため、また雰囲気炉に比べて真空炉
は、断熱扉の直前或は直後に真空扉が設けられることも
あってそれらの前後に亘る間隔が広いため、かかる断熱
扉を臨む部分にもローラを設けてこれを覆う本発明は、
連続炉に適用する場合に効果の発現が高く、とりわけ真
空炉に適用する場合に効果の発現が高い。In the heat treatment furnace according to the present invention, as described above, a roller is also provided at a portion facing the above-mentioned heat-insulating door, and the roller is provided with the heat-insulating door and / or a heat-insulating wall opposed to the heat-insulating door. It is made to cover with. Therefore, according to the present invention, the heat-insulating door can be made thick and the heat loss can be reduced accordingly, and at the same time, the material to be processed can be smoothly transported before and after the heat-insulating door. No separate transport means like hangers are needed,
In addition, since a long tray is not required, the internal structure of the furnace is not unnecessarily complicated, and the production cost and operation cost are not increased. A continuous furnace has a greater chance of transporting the material to be processed before and after a heat insulating door than a batch furnace, and a vacuum furnace is provided with a vacuum door immediately before or immediately after the heat insulating door as compared with an atmosphere furnace. Due to the large distance between them, the present invention covers the roller by providing a roller facing the heat-insulating door,
The effect is high when applied to a continuous furnace, and the effect is high especially when applied to a vacuum furnace.
【０００９】[0009]
【発明の実施の形態】図１は本発明に係る熱処理炉を例
示する炉長方向の部分縦断面図、図２は図１の熱処理炉
において断熱扉が開いた状態を示す図である。図１及び
図２は連続式の雰囲気炉を示している。炉殻１１の内側
に断熱壁２１が取り付けられており、下側の一部の断熱
壁２１ａは立設されている。断熱壁２１ａを直下に臨ん
で断熱扉３１が昇降可能に装備されており、断熱扉３１
が下降してその端面が断熱壁２１ａの端面に当接したと
きに、炉内には左側の処理室４１と右側の処理室４２と
が区画されるようになっている。したがって断熱扉３１
は中間扉として使用される。FIG. 1 is a partial longitudinal sectional view of a heat treatment furnace according to the present invention, which illustrates a heat treatment furnace, and FIG. 2 is a view showing a state in which a heat insulating door is opened in the heat treatment furnace of FIG. 1 and 2 show a continuous atmosphere furnace. A heat insulating wall 21 is attached inside the furnace shell 11, and a part of the heat insulating wall 21a on the lower side is erected. The heat insulating door 31 is provided so as to be able to move up and down with the heat insulating wall 21a facing directly below.
Is lowered, and when the end face thereof comes into contact with the end face of the heat insulating wall 21a, a left processing chamber 41 and a right processing chamber 42 are defined in the furnace. Therefore, the heat insulating door 31
Are used as intermediate doors.
【００１０】処理室４１，４２には被処理材Ａを搬送す
るための複数のローラ５１が敷設されており、更に処理
室４１と処理室４２とを区分する部分にも、図１及び図
２の場合には断熱壁２１ａの直上にもローラ５１ａが設
けられている。断熱扉３１の端面には断面方形の溝６１
が設けられており、断熱扉３１が下降してその端面が断
熱壁２１ａの端面に当接したときに、溝６１と断熱壁２
１ａの端面との間でローラ５１ａを覆うようになってい
る。The processing chambers 41 and 42 are provided with a plurality of rollers 51 for transporting the material A to be processed, and the parts for separating the processing chamber 41 from the processing chamber 42 are also shown in FIGS. In the case of (1), the roller 51a is also provided immediately above the heat insulating wall 21a. A groove 61 having a rectangular cross section is provided on the end surface of the heat insulating door 31.
The groove 61 and the heat insulating wall 2 are provided when the heat insulating door 31 descends and its end face contacts the end face of the heat insulating wall 21a.
The roller 51a is covered with the end face of the roller 1a.
【００１１】断熱扉３１を下降させてその端面を断熱壁
２１ａの端面に当接させることにより、処理室４１と処
理室４２を遮断して、処理室４１は処理室４１の雰囲気
を形成させ、また処理室４２は処理室４２の雰囲気を形
成させることができる。そして断熱壁２１及び断熱扉３
１を厚くすることにより、相応に処理室４１，４２にお
ける熱損失を少なくでき、また断熱扉３１を上昇させて
開き、被処理材Ａを処理室４１から処理室４２へ搬送す
るとき、処理室４１と処理室４２とを区画する部分に設
けたローラ５１ａにより、その搬送を円滑に行なうこと
ができる。By lowering the heat insulating door 31 and bringing its end face into contact with the end face of the heat insulating wall 21a, the processing chamber 41 and the processing chamber 42 are shut off, and the processing chamber 41 forms the atmosphere of the processing chamber 41. Further, the processing chamber 42 can form an atmosphere of the processing chamber 42. And the heat insulating wall 21 and the heat insulating door 3
1, the heat loss in the processing chambers 41 and 42 can be reduced accordingly, and when the heat-insulating door 31 is raised and opened to transport the material A to be processed from the processing chamber 41 to the processing chamber 42, The roller 51a provided in a portion that separates the processing chamber 41 from the processing chamber 42 enables the transport to be performed smoothly.
【００１２】図３〜図５は本発明に係るそれぞれ他の熱
処理炉を例示する炉長方向の部分縦断面図である。いず
れも連続式の雰囲気炉を示しており、図示及び説明を省
略する他の構成は図１及び図２について前述した熱処理
炉と同様になっている。これらの図中、２２ａ〜２４ａ
は断熱壁、３２〜３４は断熱扉、５２ａ〜５４ａ，５４
ｂは図示しない左側の処理室と右側の処理室とを区画す
る部分に設けたローラ、６２，６３ａ，６３ｂ，６４
ａ，６４ｂは断熱扉或は断熱壁に設けた溝を示してい
る。3 to 5 are partial longitudinal sectional views in the furnace length direction illustrating other heat treatment furnaces according to the present invention. Each of them shows a continuous atmosphere furnace, and other configurations which are not shown and described are the same as those of the heat treatment furnace described above with reference to FIGS. In these figures, 22a to 24a
Is a heat insulating wall, 32-34 are heat insulating doors, 52a-54a, 54
b denotes a roller provided at a portion that divides a left processing chamber and a right processing chamber (not shown), 62, 63a, 63b, and 64.
Reference numerals a and 64b denote grooves provided on the heat insulating door or the heat insulating wall.
【００１３】図３の場合、断熱壁２２ａの端面に断面ほ
ぼ円形の溝６２が設けられており、ローラ５２ａは溝６
２で覆われるようになっている。図４の場合、断熱壁２
３ａの端面に断面ほぼ半円形の溝６３ａが設けられてお
り、また断熱扉３３の端面にも断面ほぼ半円形の溝６３
ｂが設けられていて、ローラ５３ａは溝６３ａと溝６３
ｂとで覆われるようになっている。図５の場合、図示し
ない左側の処理室と右側の処理室とを区画する部分、こ
の場合には断熱壁２４ａの直上に二つのローラ５４ａ，
５４ｂが設けられており、断熱壁２４ａを直下に臨んで
昇降可能に装備された断熱扉３４の端面に断面方形の二
つの溝６４ａ，６４ｂが設けられていて、ローラ５４
ａ，５４ｂは溝６４ａ，６４ｂと断熱壁２４ａの端面と
の間で覆われるようになっている。In the case of FIG. 3, a groove 62 having a substantially circular cross section is provided on the end face of the heat insulating wall 22a, and the roller 52a is
2 is covered. In the case of FIG.
A groove 63a having a substantially semicircular cross section is provided on an end face of the heat insulating door 33.
b is provided, and the roller 53a is provided with a groove 63a and a groove 63a.
b. In the case of FIG. 5, the two rollers 54a, 52b are disposed just above the heat insulating wall 24a, which divides the left processing chamber and the right processing chamber (not shown).
54b, and two grooves 64a, 64b having a rectangular cross section are provided on the end surface of the heat insulating door 34 which can be moved up and down while facing the heat insulating wall 24a.
a and 54b are covered between the grooves 64a and 64b and the end surface of the heat insulating wall 24a.
【００１４】図６は本発明に係る更に他の熱処理炉を例
示する炉長方向の部分縦断面図である。図６は連続式の
真空炉を示している。炉殻１２内に開閉可能な真空扉７
１，７２で遮断された真空室７３が形成されており、真
空室７３内に筒形の断熱壁２５が装備されていて、下側
の両端部の断熱壁２５ａ，２５ｂは立設されている。真
空室７３には、断熱壁２５ａ，２５ｂを直下に臨んで断
熱扉３５ａ，３５ｂが昇降可能に装備されており、断熱
扉３５ａ，３５ｂが下降してその端面が断熱壁２５ａ，
２５ｂの端面に当接したときに、炉内には左側の処理室
４３及び右側の処理室４４に対して中央の処理室４５が
区画されるようになっている。したがって断熱扉３５
ａ，３５ｂは中間扉として使用される。FIG. 6 is a partial longitudinal sectional view in the furnace length direction illustrating another heat treatment furnace according to the present invention. FIG. 6 shows a continuous vacuum furnace. Vacuum door 7 that can be opened and closed in furnace shell 12
A vacuum chamber 73 is formed, which is cut off by the vacuum chambers 1 and 72. The vacuum chamber 73 is provided with a cylindrical heat insulating wall 25, and the heat insulating walls 25a and 25b at both lower ends are erected. . The vacuum chamber 73 is provided with heat-insulating doors 35a and 35b so as to be able to move up and down with the heat-insulating walls 25a and 25b facing directly below.
When the furnace is in contact with the end surface of the processing chamber 25b, a central processing chamber 45 is defined in the furnace with respect to the left processing chamber 43 and the right processing chamber 44. Therefore, the heat insulating door 35
a and 35b are used as intermediate doors.
【００１５】処理室４３，４４，４５には被処理材Ｂを
搬送するための複数のローラ５５が敷設されており、更
に処理室４３，４４と処理室４５とを区分する部分に
も、図６の場合には断熱壁２５ａ，２５ｂの直上にもロ
ーラ５５ａ，５５ｂが設けられている。断熱扉３５ａ，
３５ｂの端面には断面方形の溝６５ａ，６５ｂが設けら
れており、断熱扉３５ａ，３５ｂが下降してその端面が
断熱壁２５ａ，２５ｂの端面に当接したときに、溝６５
ａ，６５ｂと断熱壁２５ａ，２５ｂの端面との間でロー
ラ５５ａ，５５ｂを覆うようになっている。The processing chambers 43, 44, and 45 are provided with a plurality of rollers 55 for transporting the material B to be processed, and the parts for separating the processing chambers 43, 44 and the processing chamber 45 are also shown in FIG. In the case of No. 6, rollers 55a and 55b are also provided immediately above the heat insulating walls 25a and 25b. Insulated door 35a,
Grooves 65a and 65b each having a rectangular cross section are provided on the end face of the heat insulating door 35b.
The rollers 55a and 55b are arranged to cover the rollers 55a and 55b between the end faces of the heat insulating walls 25a and 25b.
【００１６】真空扉７１，７２を閉じ、断熱扉３５ａ，
３５ｂを下降させてその端面を断熱壁２５ａ，２５ｂの
端面に当接させることにより、処理室４５を遮断して、
処理室４５に所定の真空雰囲気を形成させることができ
る。そして断熱壁２５及び断熱扉３５ａ，３５ｂを厚く
することにより、相応に処理室４５における熱損失を少
なくでき、また真空扉７１及び断熱扉３５ａを開き、被
処理材Ｂを処理室４３から処理室４５へ搬送するとき、
或は真空扉７２及び断熱扉３５ｂを開き、被処理材Ｂを
処理室４５から処理室４４へ搬送するとき、各処理室を
区画する部分に設けたローラ５５ａ，５５ｂにより、そ
の搬送を円滑に行なうことができる。The vacuum doors 71, 72 are closed, and the heat insulating doors 35a,
By lowering 35b and bringing its end surface into contact with the end surfaces of the heat insulating walls 25a and 25b, the processing chamber 45 is shut off.
A predetermined vacuum atmosphere can be formed in the processing chamber 45. By increasing the thickness of the heat insulating wall 25 and the heat insulating doors 35a and 35b, the heat loss in the processing chamber 45 can be reduced accordingly, and the vacuum door 71 and the heat insulating door 35a are opened, and the workpiece B is moved from the processing chamber 43 to the processing chamber 43. When transporting to 45
Alternatively, when the vacuum door 72 and the heat-insulating door 35b are opened and the workpiece B is transported from the processing chamber 45 to the processing chamber 44, the transport is smoothly performed by the rollers 55a and 55b provided in portions that divide the processing chambers. Can do it.
【００１７】[0017]
【発明の効果】既に明らかなように、以上説明した本発
明には、炉内構造を著しく複雑にすることなく、安価な
製作費及び運転費の下に、被処理材の円滑なローラ搬送
を促し、熱損失を少なくできるという効果がある。As is apparent from the above description, the present invention as described above allows smooth roller conveyance of a material to be processed without significantly complicating the inner structure of the furnace and at low production and operation costs. This has the effect of reducing heat loss.
【図１】本発明に係る熱処理炉を例示する炉長方向の部
分縦断面図。FIG. 1 is a partial longitudinal sectional view in the furnace length direction illustrating a heat treatment furnace according to the present invention.
【図２】図１の熱処理炉において断熱扉が開いた状態を
示す図。FIG. 2 is a view showing a state in which a heat insulating door is opened in the heat treatment furnace of FIG. 1;
【図３】本発明に係る他の熱処理炉を例示する炉長方向
の部分縦断面図。FIG. 3 is a partial longitudinal sectional view in the furnace length direction illustrating another heat treatment furnace according to the present invention.
【図４】本発明に係る他の熱処理炉を例示する炉長方向
の部分縦断面図。FIG. 4 is a partial longitudinal sectional view in a furnace length direction illustrating another heat treatment furnace according to the present invention.
【図５】本発明に係る他の熱処理炉を例示する炉長方向
の部分縦断面図。FIG. 5 is a partial longitudinal sectional view in a furnace length direction illustrating another heat treatment furnace according to the present invention.
【図６】本発明に係る更に他の熱処理炉を例示する炉長
方向の部分縦断面図。FIG. 6 is a partial longitudinal sectional view in a furnace length direction illustrating another heat treatment furnace according to the present invention.
１１，１２・・・炉殻、２１，２１ａ，２２ａ，２３
ａ，２４ａ，２５，２５ａ，２５ｂ・・・断熱壁、３１
〜３４，３５ａ，３５ｂ・・・断熱扉、４１〜４５・・
・処理室、５１，５１ａ，５２ａ，５３ａ，５４ａ，５
４ｂ，５５，５５ａ，５５ｂ・・・ローラ、７１，７２
・・・真空扉、Ａ，Ｂ・・・被処理材11, 12, ... furnace shell, 21, 21a, 22a, 23
a, 24a, 25, 25a, 25b ... heat insulating wall, 31
... 34, 35a, 35b ... thermal insulation door, 41-45 ...
Processing chambers 51, 51a, 52a, 53a, 54a, 5
4b, 55, 55a, 55b ... rollers, 71, 72
... Vacuum door, A, B ... Material to be treated
Claims (6)
にした熱処理炉において、被処理材の処理室を区画する
部分にもローラを設け、該ローラを該処理室を区画する
断熱扉及び／又は該断熱扉と相対する断熱壁で覆うよう
にして成ることを特徴とする熱処理炉。In a heat treatment furnace in which a material to be processed is transported by a plurality of rollers, a roller is also provided in a portion that partitions a processing chamber of the material to be processed, and an insulating door that partitions the roller into the processing chamber; A heat treatment furnace characterized by being covered with a heat insulating wall facing the heat insulating door.
でローラを覆う溝を設けたものである請求項１記載の熱
処理炉。2. The heat treatment furnace according to claim 1, wherein the heat insulating door is provided with a groove on an end face thereof to cover the roller between the heat insulating door and the end face of the heat insulating wall.
けたものである請求項１記載の熱処理炉。3. The heat treatment furnace according to claim 1, wherein the heat insulating wall has a groove on its end face to cover the roller.
の間でローラを覆う溝を設けたものである請求項１記載
の熱処理炉。4. The heat-treating furnace according to claim 1, wherein the heat-insulating door and the heat-insulating wall are provided at both end surfaces with grooves for covering the rollers therebetween.
又は４記載の熱処理炉。5. A continuous heat treatment furnace.
Or the heat treatment furnace according to 4.
５記載の熱処理炉。6. The heat treatment furnace according to claim 1, wherein the heat treatment furnace is a vacuum furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30295698A JP4196391B2 (en) | 1998-10-23 | 1998-10-23 | Heat treatment furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30295698A JP4196391B2 (en) | 1998-10-23 | 1998-10-23 | Heat treatment furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000130953A true JP2000130953A (en) | 2000-05-12 |
| JP4196391B2 JP4196391B2 (en) | 2008-12-17 |
Family
ID=17915184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30295698A Expired - Fee Related JP4196391B2 (en) | 1998-10-23 | 1998-10-23 | Heat treatment furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4196391B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016156612A (en) * | 2013-08-26 | 2016-09-01 | 日本碍子株式会社 | Heat treating furnace and heat treating method |
-
1998
- 1998-10-23 JP JP30295698A patent/JP4196391B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016156612A (en) * | 2013-08-26 | 2016-09-01 | 日本碍子株式会社 | Heat treating furnace and heat treating method |
| TWI637141B (en) * | 2013-08-26 | 2018-10-01 | 日商日本碍子股份有限公司 | Heat treatment furnace and heat treatment method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4196391B2 (en) | 2008-12-17 |
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