JPH0520389B2 - - Google Patents
Info
- Publication number
- JPH0520389B2 JPH0520389B2 JP60239427A JP23942785A JPH0520389B2 JP H0520389 B2 JPH0520389 B2 JP H0520389B2 JP 60239427 A JP60239427 A JP 60239427A JP 23942785 A JP23942785 A JP 23942785A JP H0520389 B2 JPH0520389 B2 JP H0520389B2
- Authority
- JP
- Japan
- Prior art keywords
- furnace
- pressure
- degreasing
- carts
- temperature
- 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.)
- Expired - Lifetime
Links
- 238000005238 degreasing Methods 0.000 claims description 31
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 239000000919 ceramic Substances 0.000 description 6
- 229910052581 Si3N4 Inorganic materials 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- SOGAXMICEFXMKE-UHFFFAOYSA-N Butylmethacrylate Chemical compound CCCCOC(=O)C(C)=C SOGAXMICEFXMKE-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229920001490 poly(butyl methacrylate) polymer Polymers 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
Landscapes
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明はフアインセラミツクス等のセラミツ
クス成形体の脱脂工程に使用される脱脂炉に関す
る。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a degreasing furnace used in the degreasing process of ceramic molded bodies such as fine ceramics.
フアインセラミツクス製品の製造には成形、脱
脂、焼成工程を欠くことが出来ない。
Molding, degreasing, and firing processes are essential to manufacturing fine ceramic products.
従来フアインセラミツクス製品等のセラミツク
ス成形体の脱脂工程は成形体中に多量の成形助
剤、例えばND−793ワツクス、PBMAアクリル
系樹脂、EVAUE633結合剤などが入つているた
め、乾燥（脱脂）に長時間かけていたが、これを
短縮させるために加圧脱脂炉が用いられつつあ
る。上記加圧脱脂炉は圧力容器内に所定の圧力を
かけながら温度を上げ、成形体から揮発する成形
助剤等の揮発量を調整しながら脱脂するための炉
で従来はバツチ形の炉を用いて所定の温度プロフ
イールになるようプログラム温度調節計で調節、
コントロールしていた。 Conventionally, in the degreasing process of ceramic molded bodies such as fine ceramic products, the molded body contains a large amount of molding aids, such as ND-793 wax, PBMA acrylic resin, and EVAUE633 binder, so drying (degreasing) is difficult. It used to take a long time, but pressurized degreasing furnaces are being used to shorten this time. The above-mentioned pressure degreasing furnace is a furnace for degreasing while applying a predetermined pressure in a pressure vessel while raising the temperature and adjusting the amount of volatilization of molding aids etc. from the molded product. Conventionally, a batch-shaped furnace was used. Adjust the temperature using a programmed temperature controller to achieve the desired temperature profile.
I was in control.
一般に加圧脱脂法は例えば射出成形法で成形さ
れた処理品を３〜５Kg／cm2に加圧された容器の中
で極くゆつくりとした昇温プロフイール例えば12
℃／hrといつた速度で加熱して処理品の中に含ま
れる成形助剤を徐々に揮発させて脱脂させるもの
である。 Generally, in the pressure degreasing method, a processed product molded by injection molding is placed in a container pressurized to 3 to 5 kg/cm 2 with a very gradual temperature rise profile, for example 12
The molding aid contained in the treated product is gradually evaporated and degreased by heating at a rate of ℃/hr.
現在、用いられている加圧脱脂炉はバツチ式の
電気炉の中に圧力容器を内蔵させ一回毎に温度プ
ログラム調節計で所定のプログラムを組んで昇温
と加圧圧力のコントロールをしているため次の欠
点があつた。
The pressure degreasing furnaces currently in use have a pressure vessel built into a batch-type electric furnace, and each time a predetermined program is set using a temperature program controller to control temperature rise and pressurization pressure. This resulted in the following drawbacks.
炉の利用効率が悪い。即ち、一回毎に炉温を
上げ下げするので作業効率、エネルギー効率が
悪い。 Furnace usage efficiency is poor. That is, since the furnace temperature is raised and lowered each time, work efficiency and energy efficiency are poor.
大量生産が出来ない。即ち、圧力容器を内蔵
した電気炉であるため、大形のものを製作する
ことが困難で大量生産が出来ず生産用には不向
きである。 Mass production is not possible. That is, since it is an electric furnace with a built-in pressure vessel, it is difficult to manufacture a large-sized one, and mass production is not possible, making it unsuitable for production use.
炉の損傷が激しい。即ち、電気炉を一回毎に
上げ下げするので炉に使用されているヒータ
ー、断熱材の寿命が短かい。 The furnace is severely damaged. That is, since the electric furnace is raised and lowered every time, the life of the heater and insulation material used in the furnace is short.
再現性が余りよくない。即ち、一回毎に処理
品をセツトするので位置等が狂いやすい。 Reproducibility is not very good. That is, since the items to be processed are set each time, their positions are likely to be misaligned.
本発明の目的は従来の脱脂炉のもつ、上記の欠
点を取り除いた連続式加圧脱脂炉を提供するもの
である。 An object of the present invention is to provide a continuous pressurized degreasing furnace that eliminates the above-mentioned drawbacks of conventional degreasing furnaces.
即ち、本発明は所定の温度プロフイールに設定
することができるトンネル炉と、被処理物を内蔵
するための圧力容器を搭載した第１台車と、該圧
力容器に連通された加圧用ガスタンクを搭載した
第２台車と、該第１及び第２台車を該炉の中に順
次連続的に送り込む手段となるから連続式加圧脱
脂炉である。
That is, the present invention is equipped with a tunnel furnace that can be set to a predetermined temperature profile, a first truck equipped with a pressure vessel for containing the object to be treated, and a pressurizing gas tank connected to the pressure vessel. It is a continuous pressurized degreasing furnace because it serves as a means for sequentially and continuously feeding the second truck and the first and second trucks into the furnace.
本発明の連続式加圧脱脂炉においては、第１及
び第２台車の軌条（すなわちライン）が上下並列
に設置され、第１及び第２台車が同調して移動で
きるように配置されていることが好ましい。ま
た、第１及び第２台車を送り込む手段がループ状
に配置された台車軌条を有し、該台車軌条の台車
返送ライン上に被処理物搭載取り出しステーシヨ
ンが設置されていることが好ましい。このように
被処理物搭載取り出しステーシヨンを設けること
により作業性、生産性を更に向上させることがで
きる。 In the continuous pressurized degreasing furnace of the present invention, the rails (i.e., lines) of the first and second carts are installed vertically in parallel, and the first and second carts are arranged so that they can move in synchrony. is preferred. Further, it is preferable that the means for feeding the first and second carts has a cart rail arranged in a loop, and a workpiece loading/unloading station is installed on the cart return line of the cart rail. By providing the processing object loading and unloading station in this manner, workability and productivity can be further improved.
次に本発明を図面により説明する。 Next, the present invention will be explained with reference to the drawings.
第１図は、本発明の一実施例の連続式加圧脱脂
炉のレイアウトを示す正面図で、第２図は、本発
明の炉体の縦断面図を示す。また、第３図は、従
来のバツチ式加圧脱脂炉の横断面図を示す。トン
ネル式加圧脱脂炉本体１は長手方向を所定の長さ
に分割されており、各セクシヨン毎に電気加熱出
来るようになつている。各セクシヨンを所定の温
度に設定することにより、脱脂に必要な温度プロ
フイールになるように温度設定され、温度コント
ロールは、高性能のデジタル式温度調節計で行な
われている。該炉本体１の中へ所定速度で、処理
品の入つた圧力容器３を搭載した台車２を順次送
り込むことによつて連続式加圧脱脂が可能にな
る。 FIG. 1 is a front view showing the layout of a continuous pressurized degreasing furnace according to an embodiment of the present invention, and FIG. 2 is a longitudinal sectional view of the furnace body according to the present invention. Further, FIG. 3 shows a cross-sectional view of a conventional batch type pressure degreasing furnace. The tunnel type pressurized degreasing furnace main body 1 is divided into predetermined lengths in the longitudinal direction, and each section can be electrically heated. By setting each section to a predetermined temperature, the temperature is set to achieve the temperature profile required for degreasing, and temperature control is performed using a high-performance digital temperature controller. Continuous pressurized degreasing is made possible by sequentially feeding carts 2 carrying pressure vessels 3 containing processed products into the furnace body 1 at a predetermined speed.
また、圧力容器３の圧力は温度の変化と共に圧
力を変化させる場合があるため、圧力容器３を搭
載した台車２，３〜５台に対して高圧空気或いは
高圧窒素ボンベを積んだ台車５が上記台車２と上
下並列に同調し移動できるように構成されてい
る。 In addition, since the pressure in the pressure vessel 3 may change with changes in temperature, the above-mentioned carriages 5 loaded with high-pressure air or high-pressure nitrogen cylinders are mounted on the carriages 2, 3 to 5 carrying the pressure vessels 3. It is configured so that it can move in synchronization with the trolley 2 vertically and in parallel.
更に、圧力容器３を積んだ台車２と、ボンベ４
を積んだ台車５は駆動用スプロケツト８をかいし
てループ状に張られ、かつエンドレスに駆動する
駆動チエーン６に接続されている。台車２，５の
リターン側には１対以上の処理品取り出し搭載ス
テーシヨン７が設けられており該ステーシヨン７
にて処理品の積み替え、ボンベ４の積み替えが行
なわれる。該ステーシヨン７には常に準備を完了
した予備の台車が準備されており、該ステーシヨ
ン７には炉本体１から出てきた台車が到着すると
駆動チエーン６からはずされ、準備を完了した台
車と交換される。 Furthermore, a truck 2 loaded with a pressure vessel 3 and a cylinder 4
The trolley 5 loaded with is stretched in a loop shape through a drive sprocket 8 and connected to a drive chain 6 that drives endlessly. On the return side of the carts 2 and 5, one or more pairs of processing product take-out and loading stations 7 are provided.
The processed products are transshipped and the cylinders 4 are transshipped. A spare cart is always prepared at the station 7, and when the cart coming out of the furnace body 1 arrives at the station 7, it is removed from the drive chain 6 and replaced with a prepared cart. Ru.
上述のように本発明に係る加圧脱脂炉は、連続
的に処理できる構造を有している。 As described above, the pressure degreasing furnace according to the present invention has a structure that allows continuous processing.
第１図に示すような加圧脱脂炉本体の長さ
14m、電気容量50KW、台車の送り速度200mm／
hr、使用台車21台、圧力容器内の有効積載容量20
の本考案に係る連続式加圧脱脂炉において、ア
ルミナ射出成形体及び窒化珪素射出成形体の脱脂
処理を行なつた。
The length of the pressurized degreasing furnace body as shown in Figure 1
14m, electric capacity 50KW, trolley feed speed 200mm/
hr, 21 trolleys used, effective loading capacity in pressure vessel 20
In the continuous pressure degreasing furnace according to the present invention, an alumina injection molded article and a silicon nitride injection molded article were degreased.
脱脂条件としては、昇温速度11℃／hr，500℃
で２時間保持、冷却速度約40℃／hr合計約60時間
とし、アルミナ射出成形体の場合は圧力容器には
高圧空気でゲージ圧５Kg／cm2のガス圧をかけ、窒
化珪素射出成形体の場合は、高圧窒素ガスでゲー
ジ圧７Kg／cm2のガス圧であつた。また、冷却過程
では、アルミナの場合も窒化珪素の場合も２段階
に供給ガス圧を自動的に変え、炉の出口ではほぼ
常圧にした。 The degreasing conditions are: temperature increase rate of 11℃/hr, 500℃
The cooling rate was approximately 40°C/hr for a total of approximately 60 hours. In the case of alumina injection molded products, a gas pressure of 5 kg/cm 2 gauge pressure was applied to the pressure vessel using high pressure air, and the silicon nitride injection molded products were cooled for 2 hours. In this case, high pressure nitrogen gas was used at a gauge pressure of 7 kg/cm 2 . In addition, during the cooling process, the supply gas pressure was automatically changed in two stages for both alumina and silicon nitride, and the pressure was maintained at approximately normal pressure at the exit of the furnace.
該脱脂炉では、約３時間ごとに１台車の割合で
処理品を搭載した台車が炉本体から排出されるの
に対し、従来のバツチ式加圧脱脂炉の場合１サイ
クルに60〜70時間必要であつた。即ち、従来に比
べ20倍以上の処理ができるようになつた。尚、処
理された製品は、従来のバツチ式加圧脱脂炉で処
理されたものと比べてそん色はなかつた。 In this degreasing furnace, the cart loaded with processed products is discharged from the furnace body at a rate of one cart every three hours, whereas in the case of a conventional batch-type pressurized degreasing furnace, one cycle requires 60 to 70 hours. It was hot. In other words, it has become possible to process more than 20 times more than before. In addition, the treated product had no color difference compared to that treated in a conventional batch-type pressure degreasing furnace.
本発明の効果は次のようなものである。 The effects of the present invention are as follows.
１ 実施例のように大量生産が可能で、炉長を長
くすることにより生産量の増加がはかれる。1 As in the example, mass production is possible, and the production volume can be increased by lengthening the furnace length.
２ 常に炉内温度が均一に保たれているので、均
一な処理品が得られる。2. Because the temperature inside the furnace is always kept uniform, uniformly processed products can be obtained.
３ 炉内の昇降がないので炉を構成する耐火物、
ヒーター等の損傷が少なく炉の寿命が長い。3. Refractories that make up the furnace, as there is no lifting or lowering inside the furnace.
There is little damage to heaters, etc., and the life of the furnace is long.
４ バツチ形式の脱脂炉に比べて１サイクル毎に
炉温を昇降させないのでエネルギー効率や作業
効率に優れている。4. Compared to batch-type degreasing furnaces, the furnace temperature does not rise or fall in each cycle, so it is superior in energy efficiency and work efficiency.
５ 本連続炉では温度プロフイールを一定にして
圧力容器圧の圧力を変えることで、アルミナ
系、ジルコニア系、窒化珪素系、炭化珪素系の
処理物を交互に処理することも出来る。5 In this continuous furnace, it is also possible to alternately process alumina-based, zirconia-based, silicon nitride-based, and silicon carbide-based materials by keeping the temperature profile constant and changing the pressure of the pressure vessel.
即ち、本発明はフアインセラミツクスブームの
中での産業上の期待は大きく、将来性のあるもの
といえる。 That is, the present invention has great industrial expectations amidst the fine ceramics boom, and can be said to have a promising future.
第１図は、本発明の一実施例の連続式加圧脱脂
炉のレイアウトを示す正面図で、第２図は、本発
明の炉体の縦断面図を示す。また、第３図は、従
来のバツチ式加圧脱脂炉の横断面図を示す。
１……トンネル式加圧脱脂炉本体、２……処理
品搭載台車、３……圧力容器、４……加圧用ボン
ベ、５……ボンベ搭載台車、６……駆動チエー
ン、７……処理物取り出し搭載ステーシヨン、８
……スプロケツト、９……軌条。
FIG. 1 is a front view showing the layout of a continuous pressurized degreasing furnace according to an embodiment of the present invention, and FIG. 2 is a longitudinal sectional view of the furnace body according to the present invention. Further, FIG. 3 shows a cross-sectional view of a conventional batch type pressure degreasing furnace. DESCRIPTION OF SYMBOLS 1...Tunnel type pressure degreasing furnace main body, 2...Processed product loading trolley, 3...Pressure vessel, 4...Pressure cylinder, 5...Cylinder mounting trolley, 6...Drive chain, 7...Processed product Retrieval loading station, 8
...Sprocket, 9...Rail.
Claims (1)
きるトンネル炉と、被処理物を内蔵するための圧
力容器を搭載した第１台車と、該圧力容器に連通
された加圧用ガスタンクを搭載した第２台車と、
該第１及び第２台車を該炉の中に順次連続的に送
り込む手段とからなる連続式加圧脱脂炉。 ２ 第１及び第２台車の軌条が上下並列に設置さ
れている特許請求の範囲第１項記載の連続式加圧
炉。 ３ 第１及び第２台車を送り込む手段が、ループ
状に配置された台車軌条を有し、該台車軌条上に
被処理物搭載取り出しステーシヨンが設置されて
いる特許請求の範囲第１項記載の連続式加圧炉。[Scope of Claims] 1. A tunnel furnace that can be set to a predetermined temperature profile, a first truck equipped with a pressure vessel for containing a workpiece, and a pressurizing gas tank connected to the pressure vessel. The second truck equipped with
a continuous pressurized degreasing furnace comprising means for sequentially and continuously feeding the first and second carts into the furnace. 2. The continuous pressure furnace according to claim 1, wherein the rails of the first and second carts are installed vertically in parallel. 3. The series according to claim 1, wherein the means for feeding the first and second carts has a cart rail arranged in a loop, and a processing object loading/unloading station is installed on the cart rail. Type pressure furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60239427A JPS62100482A (en) | 1985-10-28 | 1985-10-28 | Continuous pressured dewaing furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60239427A JPS62100482A (en) | 1985-10-28 | 1985-10-28 | Continuous pressured dewaing furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62100482A JPS62100482A (en) | 1987-05-09 |
| JPH0520389B2 true JPH0520389B2 (en) | 1993-03-19 |
Family
ID=17044610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60239427A Granted JPS62100482A (en) | 1985-10-28 | 1985-10-28 | Continuous pressured dewaing furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62100482A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040023398A (en) * | 2002-09-11 | 2004-03-18 | 현대모비스 주식회사 | The mobile apparatus of oil removing |
-
1985
- 1985-10-28 JP JP60239427A patent/JPS62100482A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62100482A (en) | 1987-05-09 |
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