JPH08136144A - Continuous heat treatment furnace - Google Patents

Continuous heat treatment furnace

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Publication number
JPH08136144A
JPH08136144A JP27368694A JP27368694A JPH08136144A JP H08136144 A JPH08136144 A JP H08136144A JP 27368694 A JP27368694 A JP 27368694A JP 27368694 A JP27368694 A JP 27368694A JP H08136144 A JPH08136144 A JP H08136144A
Authority
JP
Japan
Prior art keywords
furnace
heat treatment
ceramic
shafts
along
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
Application number
JP27368694A
Other languages
Japanese (ja)
Inventor
Koji Mino
浩嗣 三野
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Murata Manufacturing Co Ltd
Original Assignee
Murata Manufacturing Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Murata Manufacturing Co Ltd filed Critical Murata Manufacturing Co Ltd
Priority to JP27368694A priority Critical patent/JPH08136144A/en
Publication of JPH08136144A publication Critical patent/JPH08136144A/en
Pending legal-status Critical Current

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Abstract

PURPOSE: To enable a heat treatment time for a ceramic member to be shortened while performing an effective utilization of heat energy, an entire structure to be made in a small-size, and improve quality of the ceramic member. CONSTITUTION: A continuous heat treatment furnace 1 is comprised of a furnace body 2 mounted to enclose a transporting passage for a ceramic member S of disk-shape, transporting shafts 4 of circular section arranged in side-by-side relation along a width direction of the furnace body 2 and supported along a length of the furnace; and driving means 8 to 10 for rotating these transporting shafts 4 along the same circumferential direction. In addition, each of the transporting shafts 4 is supported in its inclined posture where a feeding end 4a in which ceramic members A are piled up is present at a higher position than that of a discharging end 4b, and the side surfaces of the ceramic members S piled up in a thickness direction are directly piled up between two adjacent installed shafts.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は円板形状とされたセラミ
ック体の熱処理を行う際に用いられる連続式熱処理炉に
係り、特には、その構造に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a continuous heat treatment furnace used for heat treatment of a disk-shaped ceramic body, and more particularly to the structure thereof.

【0002】[0002]

【従来の技術】従来から、サーミスタなどのような電子
部品を製造する際には円板形状のセラミック体を構成要
素として使用することが行われており、これらのセラミ
ック体に対する脱脂や焼成などのような熱処理において
は、図4で示すように、上面のみが開放されたセラミッ
ク製の熱処理用匣20を用意し、かつ、これらの熱処理
用匣20内に熱処理すべきセラミック体Sを厚み方向に
沿って積み上げたうえでの熱処理、つまり予め設定され
た温度プロファイルに従ってセラミック体Sを加熱した
後に冷却するという一連の熱的な操作を施すのが一般的
となっている。そして、このような熱処理にあたっては
大量生産に適した連続式熱処理炉(以下、熱処理炉とい
う)が用いられており、この種の熱処理炉の一例として
は図5で示すような構造を有するプッシャー炉21が知
られている。
2. Description of the Related Art Conventionally, a disk-shaped ceramic body has been used as a constituent element when manufacturing an electronic component such as a thermistor. In such heat treatment, as shown in FIG. 4, a ceramic heat treatment box 20 having only an open upper surface is prepared, and the ceramic body S to be heat treated is placed in the heat treatment box 20 in the thickness direction. It is general to perform a series of thermal operations in which the ceramic bodies S are heated in accordance with a preset temperature profile after being heat-treated after being stacked along them, that is, cooling. For such heat treatment, a continuous heat treatment furnace (hereinafter referred to as heat treatment furnace) suitable for mass production is used. An example of this kind of heat treatment furnace is a pusher furnace having a structure as shown in FIG. 21 is known.

【0003】すなわち、このプッシャー炉21は所定厚
みの断熱材を用いて構成された炉体22を備え、かつ、
この炉体22内にはセラミック体Sを収納したうえで炉
長方向に沿って搬送される熱処理用匣20の搬送路23
が配設されたものであり、この搬送路23を取り囲んで
設けられた炉体22内には加熱用ヒータや雰囲気ガス供
給管(いずれも図示していない)などが配設されてい
る。そして、このプッシャー炉21を用いての熱処理で
は、熱処理用匣20を搬送用の台板24上に多段積み状
態で載置した後、炉体22の搬入側開口の外部位置に設
置されたプッシャーシリンダ(図示していない)を用い
て台板24を順次炉内へと押し込みながら搬送路23上
を搬送していくことが行われている。
That is, the pusher furnace 21 includes a furnace body 22 made of a heat insulating material having a predetermined thickness, and
The ceramic body S is housed in the furnace body 22 and is then conveyed along the furnace length direction in the conveying path 23 of the heat treatment box 20.
Is provided, and a heater for heating, an atmospheric gas supply pipe (neither of which is shown), and the like are provided in the furnace body 22 which is provided so as to surround the transport path 23. Then, in the heat treatment using the pusher furnace 21, the heat treatment boxes 20 are placed in a multi-stacked state on the transfer base plate 24, and then the pusher installed outside the loading side opening of the furnace body 22. It is performed that the base plate 24 is sequentially pushed into the furnace by using a cylinder (not shown) and is transported on the transport path 23.

【0004】[0004]

【発明が解決しようとする課題】ところで、前記従来例
に係るプッシャー炉21を用いての熱処理においては、
つぎのような不都合が生じていた。すなわち、まず、セ
ラミック体Sの熱処理を実行する際の道具であるところ
の熱処理用匣20が必須であり、熱処理用匣20のそれ
ぞれを加熱するための熱エネルギーが必要となる結果、
熱エネルギー損失の増大を招いてしまう。そして、これ
ら熱処理用匣20が大きな熱容量を有しているため、セ
ラミック体Sに対する急速加熱及び急速冷却を行うこと
は難しく、セラミック体Sの熱処理を短時間で行うのは
困難となっていた。また、熱処理に伴ってセラミック体
S及び熱処理用匣20が化学的な反応を起こすこともあ
るため、両者間にジルコニアなどの粉末を予め散布して
おくことによって化学的な反応が起こるのを防止する必
要もあった。
By the way, in the heat treatment using the pusher furnace 21 according to the conventional example,
The following inconveniences have occurred. That is, first, the heat treatment box 20 that is a tool for executing the heat treatment of the ceramic body S is indispensable, and as a result of requiring thermal energy for heating each of the heat treatment boxes 20,
This causes an increase in heat energy loss. Since the heat treatment box 20 has a large heat capacity, it is difficult to rapidly heat and cool the ceramic body S, and it is difficult to heat the ceramic body S in a short time. Further, since the ceramic body S and the heat treatment box 20 may chemically react with the heat treatment, it is possible to prevent the chemical reaction from occurring by spraying powder such as zirconia between them in advance. I also had to do it.

【0005】さらに、多段積みされた熱処理用匣20が
通過するのであるから、通過面積の大きな炉内空間を確
保しておく必要があり、炉体22の大型化を招くことに
なって設置スペースが増大するばかりか、大型化した分
だけ炉体22からの放熱に伴う熱エネルギー損失が増え
ることになっていた。さらにまた、多段積みされた上側
の熱処理用匣20と下側の熱処理用匣20とでは高さ位
置が相違しており、高さ位置によって炉内温度の不均一
が生じることもあるため、高さ位置の異なる熱処理用匣
20それぞれに収納されたうえで熱処理されたセラミッ
ク体S相互の特性が相違することになり、品質のばらつ
きが生じることもあった。
Further, since the heat treatment boxes 20 stacked in multiple stages pass through, it is necessary to secure a space inside the furnace having a large passage area, which leads to an increase in size of the furnace body 22 and an installation space. In addition to the increase in heat dissipation, the heat energy loss due to the heat radiation from the furnace body 22 is increased due to the increase in size. Furthermore, since the height positions of the upper heat treatment box 20 and the lower heat treatment box 20 which are stacked in multiple stages are different, the temperature inside the furnace may be non-uniform depending on the height position. The characteristics of the ceramic bodies S that have been heat-treated after being housed in the heat-treating boxes 20 at different positions are different from each other, which may cause variations in quality.

【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、熱エネルギーの有効利用を図りつつ
セラミック体の熱処理時間を短縮化することができ、全
体構造の小型化とともに、セラミック体の品質向上をも
実現することが可能な熱処理炉の提供を目的としてい
る。
The present invention was devised in view of these inconveniences, and the heat treatment time of the ceramic body can be shortened while making effective use of thermal energy, and the overall structure can be made smaller and the ceramic body can be made smaller. The purpose of the present invention is to provide a heat treatment furnace capable of improving the quality of the body.

【0007】[0007]

【課題を解決するための手段】本発明に係る熱処理炉
は、このような目的を達成するために、円板形状とされ
たセラミック体の搬送経路を取り囲んで設置された炉体
と、この炉体の炉幅方向に沿って並列配置されたうえで
炉長方向に沿って支持された断面円形状の搬送用軸体
と、これら搬送用軸体を同一の周方向に沿って回転させ
る駆動手段とを備えており、搬送用軸体のそれぞれはセ
ラミック体の積み込まれる搬入側端部の方が搬出側端部
よりも高い位置にある傾斜姿勢として支持され、かつ、
隣接配置された2本ずつの間には厚み方向に重ね合わさ
れたセラミック体の側面が直接的に載置されるものであ
ることを特徴としている。
In order to achieve such an object, a heat treatment furnace according to the present invention is provided with a furnace body which is installed so as to surround a transfer path of a disk-shaped ceramic body, and the furnace body. Body arranged in parallel in the furnace width direction and supported in the furnace length direction and having a circular cross section, and a drive means for rotating these carrier shaft bodies in the same circumferential direction Each of the transport shafts is supported in an inclined posture in which the loading-side end portion on which the ceramic body is loaded is higher than the unloading-side end portion, and,
It is characterized in that the side surfaces of the ceramic bodies which are superposed in the thickness direction are directly placed between the two adjacently arranged pieces.

【0008】[0008]

【作用】上記構成によれば、傾斜支持された2本ずつの
搬送用軸体間に載置されたセラミック体に対しては傾斜
方向に沿う重力の作用と搬送用軸体の回転に伴う作用と
が相乗して加わることになり、これらのセラミック体は
搬送用軸体上を滑りつつ回転しながら炉長方向に沿って
搬送されていくことになる。
According to the above construction, the action of gravity along the inclination direction and the action associated with the rotation of the transport shaft body are exerted on the ceramic body mounted between the two transport shaft bodies which are tilted and supported. And will be synergistically added, and these ceramic bodies will be transported along the furnace length direction while rotating while sliding on the transport shaft body.

【0009】[0009]

【実施例】以下、本発明の実施例を図面に基づいて説明
する。
Embodiments of the present invention will be described below with reference to the drawings.

【0010】図1は本実施例に係る熱処理炉の全体構造
を示す縦断側面図、図2は熱処理炉の一端側を上側から
見た状態を示す外観斜視図、図3は熱処理炉の要部を拡
大して示す動作説明図であり、これらの図における符号
1は熱処理炉である。
FIG. 1 is a vertical sectional side view showing the entire structure of a heat treatment furnace according to this embodiment, FIG. 2 is an external perspective view showing one end side of the heat treatment furnace as seen from above, and FIG. 3 is a main part of the heat treatment furnace. FIG. 3 is an operation explanatory view showing in an enlarged manner, and reference numeral 1 in these drawings is a heat treatment furnace.

【0011】本実施例に係る熱処理炉1は、円板形状と
されたセラミック体Sに対する脱脂や焼成などの熱処理
を実行する際に使用されるものである。この熱処理炉1
は、図1で示すように、所定厚みの断熱材を用いて構成
され、かつ、熱処理されるセラミック体Sの搬送経路を
取り囲んで設置された炉体2を備えている。そして、こ
の炉体2は、炉長方向に沿っての傾斜角度が水平面に対
し5ないし10°程度となる傾斜姿勢、すなわち、セラ
ミック体Sが積み込まれる一端側(図1では、左側)が
他端部よりも高くなった傾斜姿勢として床面G上に設置
されている。なお、炉体2が傾斜姿勢とされている必然
性はなく、水平姿勢であっても差し支えないことは勿論
である。また、この炉体2内には熱処理室3が設けられ
ており、熱処理室3内には加熱ヒータや雰囲気ガス供給
管、各種センサ類(いずれも図示していない)などが配
設されている。
The heat treatment furnace 1 according to this embodiment is used when performing heat treatment such as degreasing and firing on a disk-shaped ceramic body S. This heat treatment furnace 1
As shown in FIG. 1, is provided with a furnace body 2 which is configured by using a heat insulating material having a predetermined thickness and which is installed so as to surround a transportation path of the ceramic body S to be heat treated. The furnace body 2 is inclined such that the inclination angle along the furnace length direction is about 5 to 10 degrees with respect to the horizontal plane, that is, one end side (the left side in FIG. 1) on which the ceramic bodies S are loaded is the other. It is installed on the floor surface G in an inclined posture that is higher than the end portion. The furnace body 2 does not necessarily have to be in a tilted posture, and it goes without saying that it may be in a horizontal posture. A heat treatment chamber 3 is provided in the furnace body 2, and a heater, an atmosphere gas supply pipe, various sensors (all not shown), etc. are arranged in the heat treatment chamber 3. .

【0012】一方、この熱処理炉1は、炉体2の炉幅方
向に沿って並列配置され、かつ、その炉長方向に沿って
支持された複数本(図2及び図3では、4本)の搬送用
軸体4を具備しており、これら搬送用軸体4のそれぞれ
は断面円形状、すなわち、所定外径を有する円筒形状の
セラミック素材を用いたうえで作製されている。そし
て、これら搬送用軸体4の各々は、熱処理すべきセラミ
ック体Sの積み込まれる搬入側端部4aの方がその搬出
側端部4bよりも高い位置にある傾斜姿勢、つまり炉長
方向に沿っての傾斜角度が炉体2と同等の5ないし10
°程度になる傾斜姿勢として支持されており、所定間隔
だけ離間して隣接配置された2本ずつの搬送用軸体4間
には、厚み方向に沿って重ね合わされたセラミック体S
の側面が各搬送用軸体4の上側周面に接する状態で直接
的に載置されている。すなわち、これらの搬送用軸体4
は、炉体2が傾斜姿勢であるか水平姿勢であるかに拘わ
ることなく、傾斜姿勢とされているのである。
On the other hand, the heat treatment furnace 1 is arranged in parallel along the furnace width direction of the furnace body 2 and is supported along the furnace length direction (four in FIG. 2 and FIG. 3). The transport shaft body 4 is provided, and each of the transport shaft bodies 4 is manufactured by using a ceramic material having a circular cross section, that is, a cylindrical shape having a predetermined outer diameter. Each of the carrying shafts 4 has an inclined posture in which the loading-side end 4a on which the ceramic bodies S to be heat-treated are loaded is higher than the unloading-side end 4b, that is, along the furnace length direction. 5 to 10 with the same inclination angle as the furnace body 2
The ceramic bodies S are supported in a tilted posture of about 0 °, and between the two transport shaft bodies 4 that are adjacently arranged at a predetermined distance from each other, the ceramic bodies S are stacked in the thickness direction.
Is directly placed with its side surface in contact with the upper peripheral surface of each transport shaft body 4. That is, these transport shafts 4
Is in the inclined posture regardless of whether the furnace body 2 is in the inclined posture or the horizontal posture.

【0013】また、この際、炉体2の一端側から炉外に
まで突出した各搬送用軸体4の搬入端部4aには回転駆
動軸5が連結されており、各回転駆動軸5は搬入側の架
台6上に並列配置された軸受7の各々でもって回転自在
に位置決め支持されている。さらに、回転駆動軸5の各
々に対してはスプロケットホイール8が取り付けられて
おり、これらのスプロケットホイール8を互いに連結し
て架け渡されたチェーン9は架台6上に配設された電動
機10と減速機(図示していない)を介したうえで、あ
るいは、直接的に連結されている。さらにまた、各搬送
用軸体4の搬出側端部4b、つまり熱処理済みとなった
セラミック体Sが積み降ろされる搬出側端部4bは炉体
2の他端側(図1では、右側)から炉外に突出したう
え、搬出側の架台11上に並列配置された軸受12でも
って保持された支持ローラ13の各々によって回転自在
に位置決め支持されている。
At this time, the rotary drive shafts 5 are connected to the carry-in end portions 4a of the respective transfer shaft bodies 4 projecting from one end side of the furnace body 2 to the outside of the furnace, and the rotary drive shafts 5 are connected to each other. It is rotatably positioned and supported by each of the bearings 7 arranged in parallel on the carrying-in side pedestal 6. Further, a sprocket wheel 8 is attached to each of the rotary drive shafts 5, and a chain 9 connected and connected with these sprocket wheels 8 is decelerated with an electric motor 10 arranged on a frame 6. Via a machine (not shown) or directly. Furthermore, the carry-out side end 4b of each transport shaft body 4, that is, the carry-out side end 4b on which the heat-treated ceramic body S is loaded and unloaded is from the other end side (right side in FIG. 1) of the furnace body 2. In addition to projecting out of the furnace, it is rotatably positioned and supported by each of support rollers 13 held by bearings 12 arranged in parallel on the gantry 11 on the unloading side.

【0014】そこで、この際におけるスプロケットホイ
ール8及びチェーン9,電動機10などによっては、熱
処理炉1を構成する搬送用軸体4のそれぞれを回転させ
るための駆動手段が構成されていることになり、この駆
動手段によって搬送用軸体4のそれぞれは互いに同一の
周方向に沿って回転させられている。なお、図1中の符
号14は、熱処理済みとなったセラミック体Sを次工程
へと搬送すべく炉体2の他端側に設置されたベルトコン
べアである。
Therefore, at this time, the sprocket wheel 8, the chain 9, the electric motor 10, etc. constitute driving means for rotating each of the transfer shafts 4 constituting the heat treatment furnace 1, By this driving means, each of the transport shaft bodies 4 is rotated along the same circumferential direction. Reference numeral 14 in FIG. 1 is a belt conveyer installed on the other end side of the furnace body 2 to convey the heat-treated ceramic body S to the next step.

【0015】つぎに、本実施例に係る熱処理炉1の動作
及び作用を説明する。
Next, the operation and action of the heat treatment furnace 1 according to this embodiment will be described.

【0016】まず、熱処理すべきセラミック体Sは前工
程におけるプレス(打ち抜き)成形もしくは押し出し成
形によって作製された後、所定枚数ずつが互いの厚み方
向に重ね合わされることにより丸棒状として整列させら
れる。そして、整列済みとなった複数枚のセラミック体
Sはチャックハンドなどのような掴持機構(図示してい
ない)によって保持されたうえ、炉体2の一端側から突
出した2本ずつの搬送用軸体4それぞれの搬入側端部4
a間に上側から立設状態で載置される。
First, the ceramic bodies S to be heat-treated are manufactured by press (punch) molding or extrusion molding in the previous step, and then a predetermined number of sheets are piled up in the thickness direction of each other so as to be arranged in a round bar shape. Then, the plurality of aligned ceramic bodies S are held by a gripping mechanism (not shown) such as a chuck hand or the like, and the ceramic bodies S are transported by two protruding from one end side of the furnace body 2. Loading-side end 4 of each shaft 4
It is placed between a and upright from above.

【0017】そして、この際における搬送用軸体4のそ
れぞれは炉体2の炉長方向に沿う傾斜姿勢となったうえ
で回転させられているから、図3で示すように、これら
の搬入側端部4a間に載置された個々のセラミック体S
に対しては、傾斜方向に沿う重力の作用と搬送用軸体4
の回転に伴う作用とが相乗して加わる。そこで、これら
のセラミック体Sは搬送用軸体4上を滑りつつ回転しな
がら搬送用軸体4それぞれの搬出側端部4bへと向かっ
て搬送されていくことになり、炉体2内を通過するセラ
ミック体Sに対しては所要の温度プロファイルに従った
脱脂や焼成などの熱処理が施される。
At this time, since each of the transfer shafts 4 is rotated after being in an inclined posture along the furnace length direction of the furnace body 2, as shown in FIG. Individual ceramic bodies S mounted between the ends 4a
With respect to, the action of gravity along the inclination direction and the transport shaft body 4
The effect of rotation is added synergistically. Therefore, these ceramic bodies S are to be transported toward the unloading-side end 4b of each of the transport shaft bodies 4 while rotating while sliding on the transport shaft body 4, and pass through the furnace body 2. The ceramic body S to be subjected to heat treatment such as degreasing and firing according to a required temperature profile.

【0018】ところで、本発明の発明者が実験したとこ
ろによれば、搬送用軸体4の傾斜角度が8.8°で回転
数が60rpmである場合には0.66mm/secの
搬送速度となり、同じ傾斜角度で回転数が120rpm
である場合の搬送速度は1.43mm/secとなるこ
とが確認されている。なお、この実験における搬送用軸
体4は直径が13mmとされ、かつ、外周面上にラッピ
ングシートが貼り付けられたものであり、セラミック体
Sは直径が15.6mmで厚みが2.56mmとされた
ものである。
According to experiments conducted by the inventor of the present invention, when the transport shaft 4 has an inclination angle of 8.8 ° and a rotation speed of 60 rpm, the transport speed is 0.66 mm / sec. , Rotation speed is 120 rpm with the same tilt angle
It has been confirmed that the transport speed is 1.43 mm / sec. The transport shaft 4 in this experiment had a diameter of 13 mm, and a wrapping sheet was attached to the outer peripheral surface thereof. The ceramic body S had a diameter of 15.6 mm and a thickness of 2.56 mm. It was done.

【0019】さらにまた、炉体2内を通過しながらの熱
処理が施されたセラミック体Sは、炉体2の他端側から
放出されてベルトコンべア14上に落下したうえで次工
程へと搬送されていくことになる。なお、図2及び図3
においては本実施例に係る熱処理炉1が4本の搬送用軸
体4を具備するとしているが、4本に限られることはな
く、少なくとも2本以上の搬送用軸体4を具備していれ
ばよいことは勿論である。但し、これら搬送用軸体4の
本数が多いほどセラミック体Sの処理量が増えるのは当
然であり、必要な処理量に見合った本数の搬送用軸体4
が設けられることになる。
Further, the ceramic body S which has been subjected to the heat treatment while passing through the furnace body 2 is discharged from the other end side of the furnace body 2 and dropped onto the belt conveyor 14, and then to the next step. It will be transported. 2 and 3
In the above, the heat treatment furnace 1 according to the present embodiment is provided with four transfer shafts 4, but the number is not limited to four, and at least two transfer shafts 4 may be provided. Of course, it is good. However, it goes without saying that the processing amount of the ceramic body S increases as the number of the transporting shafts 4 increases, and the number of the transporting shafts 4 corresponding to the required processing amount is increased.
Will be provided.

【0020】[0020]

【発明の効果】以上説明したように、本発明に係る熱処
理炉においては、セラミック体のそれぞれが搬送用軸体
間に直接的に載置されたうえ、傾斜姿勢で支持された搬
送用軸体上を滑りつつ回転しながら炉長方向に沿って搬
送されることになる。そこで、従来例では必須であった
熱処理用匣が不要となり、これら熱処理用匣の加熱に要
していた熱エネルギーの無駄をなくすことができるばか
りか、セラミック体の熱処理に要する時間の短縮を図る
ことが可能となる。また、回転しているセラミック体と
搬送用軸体とは常時異なる部位で接触することを繰り返
しており、化学的な反応を起こすまでに至ることがなく
なるから、反応を防止するための手立てをわざわざ講じ
ておく必要はないことになる。
As described above, in the heat treatment furnace according to the present invention, each of the ceramic bodies is directly placed between the transport shaft bodies and is supported in an inclined posture. It will be transported along the furnace length direction while rotating while sliding on top. Therefore, the heat-treating jars, which were indispensable in the conventional example, are no longer required, and it is possible not only to eliminate the waste of heat energy required for heating these heat-treating jars, but also to shorten the time required for the heat treatment of the ceramic body. It becomes possible. In addition, the rotating ceramic body and the transport shaft are constantly in contact with each other at different parts, and it is possible to prevent a chemical reaction from occurring. You don't have to take it.

【0021】さらに、本発明によれば、従来例のような
多段積みされた熱処理匣ではなくて搬送用軸体上に載置
されたセラミック体のみが通過するのであるから、熱処
理用匣を使用した場合に比べると、炉内空間における通
過面積が少なくて済むことになる結果、全体構造の小型
化及び熱エネルギー損失の低減を図ることができる。さ
らにまた、熱処理時におけるセラミック体の高さ位置が
一致していることになるため、熱処理済みとなったセラ
ミック体の特性が均一となり、品質向上を図ることもで
きるという効果が得られる。
Further, according to the present invention, only the ceramic bodies placed on the carrying shaft body pass through instead of the heat treatment boxes stacked in multiple stages as in the conventional example. Therefore, the heat treatment box is used. As compared with the above case, the passing area in the furnace space can be reduced, and as a result, the overall structure can be downsized and thermal energy loss can be reduced. Furthermore, since the height positions of the ceramic bodies during the heat treatment are the same, the characteristics of the heat-treated ceramic bodies are uniform, and the quality can be improved.

【図面の簡単な説明】[Brief description of drawings]

【図1】本実施例に係る熱処理炉の全体構造を簡略化し
て示す縦断側面図である。
FIG. 1 is a vertical cross-sectional side view showing a simplified overall structure of a heat treatment furnace according to an embodiment.

【図2】熱処理炉の一端側を上側から見た状態を一部省
略して示す外観斜視図である。
FIG. 2 is an external perspective view showing a state in which one end side of the heat treatment furnace is viewed from above with a part of it omitted.

【図3】熱処理炉の要部を拡大して示す動作説明図であ
る。
FIG. 3 is an operation explanatory view showing an enlarged main part of the heat treatment furnace.

【図4】従来例に係る熱処理用匣の構造を一部破断して
示す外観斜視図である。
FIG. 4 is an external perspective view showing a partially broken structure of a heat treatment box according to a conventional example.

【図5】従来例に係る熱処理炉の全体構造を簡略化して
示す縦断側面図である。
FIG. 5 is a vertical sectional side view showing a simplified overall structure of a heat treatment furnace according to a conventional example.

【符号の説明】[Explanation of symbols]

1 熱処理炉(連続式熱処理炉) 2 炉体 4 搬送用軸体 4a 搬入側端部 4b 搬出側端部 8 スプロケットホイール(駆動手段) 9 チェーン(駆動手段) 10 電動機(駆動手段) S セラミック体 1 Heat Treatment Furnace (Continuous Heat Treatment Furnace) 2 Furnace Body 4 Conveying Shaft Body 4a Carrying Side End 4b Carrying Out Side End 8 Sprocket Wheel (Drive Means) 9 Chain (Drive Means) 10 Electric Motor (Drive Means) S Ceramic Body

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 円板形状とされたセラミック体(S)の
搬送経路を取り囲んで設置された炉体(2)と、この炉
体(2)の炉幅方向に沿って並列配置されたうえで炉長
方向に沿って支持された断面円形状の搬送用軸体(4)
と、これら搬送用軸体(4)を同一の周方向に沿って回
転させる駆動手段(8〜10)とを備えており、 搬送用軸体(4)のそれぞれはセラミック体(S)の積
み込まれる搬入側端部(4a)の方が搬出側端部(4
b)よりも高い位置にある傾斜姿勢として支持され、か
つ、隣接配置された2本ずつの間には厚み方向に重ね合
わされたセラミック体(S)の側面が直接的に載置され
るものであることを特徴とする連続式熱処理炉。
1. A furnace body (2) installed so as to surround a transportation path of a disk-shaped ceramic body (S), and arranged in parallel along the furnace width direction of the furnace body (2). Conveyor shaft (4) with a circular cross section supported along the furnace length direction
And driving means (8 to 10) for rotating these transport shafts (4) along the same circumferential direction, and each of the transport shafts (4) is loaded with a ceramic body (S). The carrying-in side end (4a) is closer to the carrying-out side end (4a).
The side surfaces of the ceramic bodies (S) that are supported in a tilted position higher than that of b) and that are superposed in the thickness direction are directly placed between two adjacently arranged pieces. A continuous heat treatment furnace characterized in that
JP27368694A 1994-11-08 1994-11-08 Continuous heat treatment furnace Pending JPH08136144A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP27368694A JPH08136144A (en) 1994-11-08 1994-11-08 Continuous heat treatment furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP27368694A JPH08136144A (en) 1994-11-08 1994-11-08 Continuous heat treatment furnace

Publications (1)

Publication Number Publication Date
JPH08136144A true JPH08136144A (en) 1996-05-31

Family

ID=17531143

Family Applications (1)

Application Number Title Priority Date Filing Date
JP27368694A Pending JPH08136144A (en) 1994-11-08 1994-11-08 Continuous heat treatment furnace

Country Status (1)

Country Link
JP (1) JPH08136144A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1312298C (en) * 2004-12-16 2007-04-25 上海交通大学 Push rod type resistor furnace for heat treatment
WO2016208615A1 (en) * 2015-06-23 2016-12-29 株式会社村田製作所 Continuous heat treatment furnace and manufacturing method for ceramic electronic component using same
CN114951654A (en) * 2022-06-02 2022-08-30 株洲金佰利硬质合金有限公司 Vacuum sintering furnace is used in production of high performance carbide

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1312298C (en) * 2004-12-16 2007-04-25 上海交通大学 Push rod type resistor furnace for heat treatment
WO2016208615A1 (en) * 2015-06-23 2016-12-29 株式会社村田製作所 Continuous heat treatment furnace and manufacturing method for ceramic electronic component using same
KR20180009787A (en) * 2015-06-23 2018-01-29 가부시키가이샤 무라타 세이사쿠쇼 Continuous heat treatment furnace and manufacturing method of ceramic electronic component using same
JPWO2016208615A1 (en) * 2015-06-23 2018-03-29 株式会社村田製作所 Continuous heat treatment furnace and method for manufacturing ceramic electronic components using the same
CN114951654A (en) * 2022-06-02 2022-08-30 株洲金佰利硬质合金有限公司 Vacuum sintering furnace is used in production of high performance carbide

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