JPS5851950A - Automatic spraying apparatus of cylinder body - Google Patents
Automatic spraying apparatus of cylinder bodyInfo
- Publication number
- JPS5851950A JPS5851950A JP56148740A JP14874081A JPS5851950A JP S5851950 A JPS5851950 A JP S5851950A JP 56148740 A JP56148740 A JP 56148740A JP 14874081 A JP14874081 A JP 14874081A JP S5851950 A JPS5851950 A JP S5851950A
- Authority
- JP
- Japan
- Prior art keywords
- spraying
- nozzle
- spray
- chimney
- sprayed
- 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
- 238000005507 spraying Methods 0.000 title claims description 48
- 239000000463 material Substances 0.000 claims abstract description 14
- 239000011230 binding agent Substances 0.000 claims abstract description 7
- 239000011248 coating agent Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 claims 1
- 239000007921 spray Substances 0.000 abstract description 20
- 238000010276 construction Methods 0.000 description 16
- 230000005484 gravity Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 238000004880 explosion Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Landscapes
- Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
- Spray Control Apparatus (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
Description
【発明の詳細な説明】
この発明は、煙突や高炉や熱風炉等の筒状体の内張り用
の吹付は装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a spraying device for lining cylindrical bodies such as chimneys, blast furnaces, and hot blast furnaces.
従来この種の吹付は技術としては、
（１） 吹付は施工すべき筒状体内にゴンドラを設置
し、これに作業者が乗ってゴンドラを下降させながら吹
付はノズルを手動操作して筒状体上部より下部へ向って
吹付ける方法；
（２） 筒状体内に足場を組み立て、据付け、これに
作業者が乗って上下方向のある範囲を吹付けては足場を
取外す作業を繰返して筒状体上部より下部へ向って吹付
ける方法；
（３）吹付はノズルをワイヤまたはチェーンを用いて吹
付は施工すべき筒状体頂部よりウィンチまたはホイスト
により吊るし、吹付はノズルを回転させガがら施工厚さ
に対応して吹付はノズルを下降または上昇させ吹付ける
方法
が知られている。Conventionally, the techniques for this type of spraying are as follows: (1) In spraying, a gondola is installed inside the cylindrical body to be worked, and a worker rides on it and lowers the gondola while manually operating the nozzle to remove the cylindrical body. Method of spraying from the top to the bottom; (2) Assemble a scaffold inside the cylindrical body, install it, have a worker stand on it, spray a certain area in the vertical direction, and then remove the scaffolding, which is repeated until the cylindrical body Method of spraying from the top to the bottom; (3) For spraying, use a wire or chain to hang the nozzle from the top of the cylindrical body to be sprayed using a winch or hoist, and for spraying, rotate the nozzle to determine the thickness of the workpiece. In response to this, there is a known method of spraying by lowering or raising the nozzle.
しかしながら、これらのいずれの方法も手動操作により
吹付けを行なうため安定した施工体品質を確保できず、
また施工に特殊な技能および熟練を必要とすると共に、
筒状体内で作業するため粉塵による障碍や高所作業の危
険が伴なう等の欠点があり、そして省力化の問題の解決
も望め入かった。However, since all of these methods require manual spraying, stable construction quality cannot be ensured.
In addition, construction requires special skills and expertise,
There were disadvantages such as obstacles caused by dust and the danger of working at heights because the work was carried out inside a cylindrical body, and there was also hope for a solution to the problem of labor saving.
この発明は上述のような従来法に伴なう欠点や問題点を
解消するため吹付は装置特に吹付はノズルの動作を自動
制御できるように柘成した自動吹付は装置を提供するこ
とを目的とする。The purpose of the present invention is to provide an automatic spraying device that can automatically control the operation of a spraying nozzle, in particular, to eliminate the drawbacks and problems associated with the conventional methods as described above. do.
この発明の一つの特徴によれば、定＋Ａ噴射できかつ定
速回転できるようにされた吹付はノズルの昇降速庁は吹
付は施工すべき筒状体の内径および吹付は施工厚さの関
係に基いて設定される。これにより所望の施工厚さを安
宇して得ることができると共に施工体品質も均質なもの
と々る。According to one feature of this invention, the spraying which is capable of constant +A injection and constant speed rotation is controlled by the nozzle's elevation and descent speed depending on the inner diameter of the cylindrical body to be constructed and the spraying thickness. It is set based on As a result, the desired construction thickness can be obtained with ease, and the quality of the construction body is also uniform.
またこの発明の別の特徴によれば、定伯噴射できかつ定
速回転できるようにされた吹付はノズルの移動速度は吹
付は施工すべき筒状体内の温度に応じて制御され、これ
により一回の施工厚さを調整できるようにされる。これ
は、を園に例えば筒状炉体の壁を熱間で補修する場合に
炉体内温度により異なるが吹付は材料に添加した溶液（
例えば水）が吹付けと同時に蒸発し始め雰囲気中に放散
され、そのため吹付は厚さが厚いと蒸気の逃げる通路が
閉鎖され、爆裂やこれに近い現象により施工体を損傷す
る危険がある場合に有利である。すなわち爆裂等を起さ
ない吹付は厚さを保持しながら繰り返し吹付け、所定の
厚さに仕上げることができる。According to another feature of the present invention, the moving speed of the spray nozzle that can be sprayed at a constant rate and rotated at a constant speed is controlled according to the temperature inside the cylindrical body to be sprayed. The construction thickness can be adjusted. For example, when hot repairing the wall of a cylindrical furnace, this will vary depending on the temperature inside the furnace, but spraying will be performed using a solution added to the material (
For example, water) starts to evaporate at the same time as it is sprayed and is dissipated into the atmosphere. Therefore, if the spray is thick, the path for steam to escape will be closed, and there is a risk of damaging the construction body due to explosion or similar phenomenon. It's advantageous. In other words, by spraying without causing explosions or the like, it is possible to repeatedly spray while maintaining the thickness to achieve a predetermined thickness.
このような施工体品質の均雀化、施工厚さの均一化およ
び施工時の爆裂等の発生防止の他に、この発明によれば
、自動制御により施工が可能となるため施工に特殊な技
能や熟練を必要とせず大幅な省力化が達成でき、また筒
状体内に作業者が入る必要がないため粉塵による障碍や
高所作業の危険から作業者を守ることができる。In addition to making the quality of the construction work uniform, making the construction thickness uniform, and preventing the occurrence of explosions during construction, according to the present invention, construction can be performed by automatic control, so special skills are required for construction. Significant labor savings can be achieved without the need for training or skill, and since there is no need for the worker to enter the cylindrical body, the worker can be protected from obstacles caused by dust and the dangers of working at heights.
以下この発明を添附図面を参照して実施例について説明
する。Embodiments of the present invention will be described below with reference to the accompanying drawings.
第７図には煙突の内壁をライニングするためにこの発明
の装置を使用した一例を示す。FIG. 7 shows an example of the use of the device of the invention for lining the inner wall of a chimney.
第１図においてｌＶｉ吹付は施工すべき煙突を示し、こ
の煙突ｌの頂部には支持枠コが取付けられ、この支持枠
コ上に滑車３．ダが設けられ、これらの滑車３，４Ｉを
介してチェーンまたはワイヤ３の一端が煙突ノ内に懸垂
している。このチェーンまたはワイヤ！は案内ローラル
を介して地上に設置したウィンチ７によって巻上げおよ
び巻戻しされる。In FIG. 1, lVi spray indicates a chimney to be constructed, a support frame is attached to the top of this chimney, and a pulley 3. One end of a chain or wire 3 is suspended within the chimney via these pulleys 3, 4I. This chain or wire! is hoisted and rewound by a winch 7 installed on the ground via guide rollers.
ｔは吹付は装置本体で、この本体ｇけ第一図に詳細に示
すように自在継手デにより回転自在に取付けられた吹付
はノズルｉｏ、この吹付はノズルＩＯを歯車伝動装ｆｔ
／／ａを介して実仙的に定速で回転させるモータ／／お
よび吹付はノズル１０Ｋ連接され吹付は装置本体ｔをチ
ェーンｊの先端に連結する回転継手ｌコを備え、そして
この吹付目装置本体ｔけ各々先端に煙突ｌの内壁面上を
滑動する案内ローラ／３を増付けた多数の自己調心腕部
材ＩＱ−によって煙突ｌの中心軸′線に沿って動くよう
にされる。第１．−図に示すノズル機構は煙突ｌの内径
が比較的小さい場合に適している。またｔｒは煙突／内
の温度を検出する温度センサであり、この温度センサ／
Ｎは図示実施例でけ吹付は装置本体ｌに取付けられてい
るが、必要ならば煙突ｌ内の適轟な位置に固定してまた
は可動に設けてもよく、また場合によっては複数個設け
てもよい。／６は煙突／内の状態を捕えるテレビカメラ
で、本体ｇに取付けられている。t is the main body of the spraying device, the spraying nozzle io is rotatably attached by a universal joint as shown in detail in Figure 1, and the nozzle IO is connected to the gear transmission device ft.
A motor that rotates at a constant speed via //a is connected to a nozzle 10K for spraying, and a rotary joint l is provided for connecting the main body t of the spraying device to the tip of the chain j, and this spraying device The main body t is made to move along the central axis of the chimney l by means of a number of self-centering arm members IQ-, each of which has a guide roller /3 added at its tip, which slides on the inner wall surface of the chimney l. 1st. - The nozzle arrangement shown in the figure is suitable when the internal diameter of the chimney l is relatively small. In addition, tr is a temperature sensor that detects the temperature inside the chimney.
N is attached to the main body of the device in the illustrated embodiment, but if necessary, it may be fixed or movable at an appropriate position within the chimney, or in some cases, multiple units may be installed. Good too. /6 is a television camera that captures the conditions inside the chimney /, and is attached to the main body g.
ブロック１７け吹付は材料供給装置で、ホース／７ａを
介して吹付は装置本体ｔへ吹付は材料を予じめ設定した
一定量づつ供給する。ブロック／１はバインダー供給装
置で、吹付は装置本体ざに供給される吹付は材料にホー
スｉｇ：ＩＬを介してバインダーを一宇割合で添加混合
する゛。ブロック１９けコンプレッサでエアホース／９
ａを介して案内ローラ１３およびテレビカメラ エアー
カーテン用のエアーを供給し、これらの要素を粉塵から
保護する。Block 17 is a material supply device that supplies a predetermined amount of material to the device main body t via a hose/7a. Block/1 is a binder supply device, which is supplied to the main body of the device for spraying, and adds and mixes the binder to the material at a ratio of 1 to 1 through a hose (IL). Air hose/9 with block 19 compressor
air for the guide rollers 13 and the television camera air curtain is supplied via a to protect these elements from dust.
ブロック−〇はモニタ装置で、吹付は装装置本体ｔに取
付けたテレビカメラｌ乙にケーブル２０ ａを介して接
続されこのカメラで捕えた煙突／内の壁面状態を表示す
る。またプロックコｌは電源装置で、ケーブルｊ／ａを
介してノズルの回転駆動装置や電磁弁等（図示してない
）に接続される。これらのブロックの各装置はこの発明
の要旨に直接関係しないので、それらの構成についての
詳しい説明は省略する。Block 0 is a monitor device, which is connected via a cable 20a to a television camera 1 attached to the main body t of the equipment, and displays the condition of the walls inside the chimney captured by this camera. Further, the block controller 1 is a power supply device, and is connected to a nozzle rotation drive device, a solenoid valve, etc. (not shown) via a cable j/a. Since each device of these blocks is not directly related to the gist of the present invention, a detailed explanation of their configuration will be omitted.
ブロック２２は温度測定装置で、ケーブル、２．２ ａ
を介して温度センサｌ！ｒに接続され、煙突／内の温度
を測定する。プロシフ２３日吹付は施工すべき筒状体の
内径に関するデータを入力するデータ入力装置であり、
ブロックコ弘は吹付は施工厚さに関するデータを入力す
るデータ人力装盾である。Block 22 is a temperature measuring device, cable, 2.2 a
Temperature sensor via l! r to measure the temperature inside the chimney. Prosif 23rd Shot is a data input device that inputs data regarding the inner diameter of the cylindrical body to be constructed.
Blockco Hiro is a data manual shield that inputs data regarding the construction thickness for spraying.
これら三つの装置ココ、コ３．−グ からの各データは
計算機装置２５へ供給され、この計算機装置２５けこれ
らの入力データに基いて演算処理し、ウィンチ７の動作
制御信号を出力し、煙突ｌ内における吹付は装置本体ｌ
の移動速度、図示例では昇降速度を設定する。計算機装
置２ ！ｒ Ｋよる制御の仕方の一例を第３図に示す。These three devices are here, 3. - Each data from the machine is supplied to the computer device 25, and this computer device 25 performs arithmetic processing based on these input data and outputs an operation control signal for the winch 7.
The moving speed, in the illustrated example, the vertical speed is set. Computer device 2! An example of the control method using rK is shown in FIG.
第３図の表には煙突の内径と吹付は施工厚さとの関係か
ら吹付は装置本体ｔの移動速度がどのように設定される
かを示している。吹付けｔ（能力）は吹付は材料のｆｉ
１７＋（嵩比重）により異る。容積（体積）で見れば材
料の種類が異っても等容積吹付は可能である。しかし々
から、重量で吹付は量（能力）を見ると嵩比重の差によ
り異る。従ってこの関係を第一図で読み取るように考慮
している。−例として煙突内径＝−〇〇〇φ、吹付は施
工厚み＝？Ｏｖａｍとすると吹付は量（能力） ＝ ２
ｑ Ｋｇ／ｍｉｎ （嵩比重／、ＪＪ ）のとき、ノズ
ル昇降速度は３ｇ ７１１１１１ ／ ｍｉｎと方る。The table in FIG. 3 shows how the moving speed of the apparatus main body t is set based on the relationship between the internal diameter of the chimney and the thickness of the spray. Spraying t (ability) is the material's fi
17+ (bulk specific gravity). In terms of volume (volume), equal volume spraying is possible even if the types of materials are different. However, when looking at the amount (ability) of spraying by weight, it differs depending on the difference in bulk specific gravity. Therefore, this relationship is considered to be read in Figure 1. -For example, chimney inner diameter = -〇〇〇φ, construction thickness for spraying =? For Ovam, the amount of spraying (capacity) = 2
When q Kg/min (bulk specific gravity/, JJ), the nozzle lifting speed is 3g 711111/min.
この場合嵩比重へｇ２の材料を使用すると吹付は量は３
ルｂ ／ ｍｘｎとなっても、ノズル昇降速度は、？
ｔｒ ｌＩｍ ／ ｍｉｎでよい。In this case, if a material with a bulk specific gravity of g2 is used, the amount of spraying will be 3
Even if b/mxn, what is the nozzle lifting speed?
It may be tr lIm /min.
また煙突内径＝コ００θグ、吹付は施工厚み＝りθｉｉ
ｓとすると、吹付けｉ ＝ ／ Ａ Ｋｆ／ ｍｉｎ
（嵩比重ハコ３）のとき、ノズル昇降速度はコ、２ｔ＋
１ｍ／ｍｉｎとなる。この場合嵩比重へｇコの材料を使
用すると、吹付は量は２ ｇ Ｋｇ／ ｍｉｎとなって
もノズル昇降速度は、２：ｌ １１１ ／ ｍｉｎでよ
い。Also, chimney inner diameter = 00θg, spraying construction thickness = θii
s, spraying i = / A Kf/ min
(Bulk specific gravity box 3), the nozzle lifting speed is 2t+
The speed becomes 1m/min. In this case, if a material with a bulk specific gravity of g is used, the nozzle lifting speed may be 2:l 111/min even if the spraying amount is 2 g Kg/min.
このように構成した装置の使用においては、チェーンＳ
の先端をウィンチ７を作動して煙突ｌの下部まで下げ、
煙突／内に挿置した吹付は装置本体ｔの懸垂用回転継手
１２に連結する。この際外部装置／り〜−／の接続用ホ
ースおよびケーブルも全て吹付は装置本体ｔに連結する
。その後ウィンチ７を再び作動してチェーンＳを巻上げ
、吹付は装置本体ｊを煙突ｌの頂部まで吊り上げる。そ
して各機器を調整した後、煙突／の頂部より下部へ向っ
て吹付は作業が開始される。この場合、吹付は材料供給
装置１１７からの材料の安定した定椙″吐出と共に、煙
突ｌの内径と施工厚さとの関係から吹付は装置本体ｔの
降下速度が設定され得るので所望の厚さに均質かつ均一
に吹付けを行なうことができる。す々ｂち、計算機装Ｖ
コＳは吹付はノズルの移動速度と経過時間より吹付はノ
ズル１０のレベル（位置）を演算し、そのレベルに対応
した筒状体すなわち煙突ｌの内径を把棚し、その内径に
応じた吹付はノズル移動速度を演算する。When using a device configured in this way, the chain S
Activate winch 7 to lower the tip of the chimney to the bottom of the chimney L,
The spray tube inserted into the chimney/chimney is connected to the suspension rotary joint 12 of the main body t of the device. At this time, all the connection hoses and cables for the external equipment / - - / are also connected to the main body t of the spraying device. Thereafter, the winch 7 is activated again to wind up the chain S, and the spray lifts the main body j of the device to the top of the chimney l. After adjusting each piece of equipment, spraying begins from the top of the chimney to the bottom. In this case, the spraying is carried out with a stable constant discharge of material from the material supply device 117, and the descending speed of the device body t can be set based on the relationship between the inner diameter of the chimney l and the construction thickness, so that the desired thickness can be achieved. It is possible to perform spraying homogeneously and evenly.
KoS calculates the level (position) of the nozzle 10 from the moving speed and elapsed time of the nozzle, calculates the inner diameter of the cylindrical body, that is, the chimney l, corresponding to that level, and sprays according to the inner diameter. calculates the nozzle moving speed.
糖グ図にはノズル機構の別の実施例を示し、この実施例
は特に煙突ｌの内径が比較的大きい場合に適しており、
第１．−図の実施例と対応した部分は同じ符号で示す。The sugar diagram shows another embodiment of the nozzle mechanism, which is particularly suitable when the internal diameter of the chimney l is relatively large.
1st. - Parts corresponding to the illustrated embodiment are designated by the same reference numerals.
この実施例では吹付はノズルＩＯは吹付は装置本体ｔに
内蔵したモータにより駆動される駆動軸コロに回転アー
ム、２７を介して取付けられ、また吹付はノズル１０に
は水添加器コｔが取付けられ、この実施例の場合吹付は
ノズルｌθへの吹付は材料およびバインダー供給用のホ
ース／７ａ、／ＪＢけ煙突の上部に設けたローラコ？、
３θを通って煙突ｌの上部から挿入される。In this embodiment, the spray nozzle IO is attached via a rotary arm 27 to a drive shaft roller driven by a motor built into the device body t, and a water adder t is attached to the spray nozzle 10. In this embodiment, the spraying to the nozzle lθ is carried out by the roller controller installed at the top of the chimney for material and binder supply hoses /7a and /JB. ,
It is inserted from the top of the chimney l through 3θ.
この発明においては筒状体は煙道、熱風管等垂直に設置
されないものも包含する。従って当然この発明による装
置は水平または斜めに設置した筒状体にも等しく適用で
きる。In this invention, the cylindrical body includes those that are not installed vertically, such as a flue and a hot air pipe. Naturally, therefore, the device according to the invention is equally applicable to horizontally or obliquely installed cylindrical bodies.
第１図はこの発明による装置の一実施例を示す概略図、
第一図は第１図のノズル機構の拡大図、第３図は筒状体
の内径と施工厚さとノズル移動速度との関係を示す表、
第亨図はノズル機構の別の実施例を示す図である。
図中、 ｌ：煙突（筒状体）、 Ｓ：チェーンまたはワ
イヤ、 り：ウインチ、 ｇ：吹付は装置本体、 １
０：吹付はノズル、 ／ｊ−：温度センサ、 ココ：
温度測定装置、 ２３．コｌＩ：データ入力装置、 −
３：計算機装置。
馬１図FIG. 1 is a schematic diagram showing an embodiment of the device according to the present invention;
Figure 1 is an enlarged view of the nozzle mechanism in Figure 1, Figure 3 is a table showing the relationship between the inner diameter of the cylindrical body, the construction thickness, and the nozzle movement speed.
Fig. 5 is a diagram showing another embodiment of the nozzle mechanism. In the figure, l: chimney (cylindrical body), S: chain or wire, ri: winch, g: spraying device body, 1
0: Spraying from nozzle, /j-: Temperature sensor, here:
temperature measuring device, 23. Coll: data input device, −
3: Computer device. horse 1 diagram
Claims (1)
線方向に昇降可能に案内され、吹付は材料供給装置から
予じめ設定した一定量づつ供給される吹付は材料にバイ
ンダー供給装置からのバインダーを一定割合で添加混合
して筒状体内壁の吹付は施工を行なう回転吹付はノズル
を備えた吹付は装置において、吹付は施工すべき筒状体
の内径および吹付は施工厚さに応じて上記吹付は装置の
吹付はノズルの移動速度を設定する制御回路を有するこ
とを特徴とする筒状体の自動吹付は装置。 ユ 吹付はノズルの昇降速度を設定する制御回路が、筒
状体の吹付は施工すべき部分の温度を測定する温度セン
サから測定温度に従って吹付はノズルの昇降速度を制御
して施工厚さを調整できるようにした特許請求の範囲第
１項に１載の装置。[Scope of Claims] / The sprayer is guided removably into the cylindrical body to be worked and can be raised and lowered in the axial direction, and the sprayer is supplied with a preset amount from the material supply device. The binder from the binder supply device is added and mixed at a fixed ratio and sprayed on the inner wall of the cylindrical body.Rotary spraying is carried out using a spraying device equipped with a nozzle, and the inner diameter of the cylindrical body to be applied and the spraying are An automatic spraying device for a cylindrical body, characterized in that the spraying device has a control circuit that sets a moving speed of a nozzle of the spraying device according to the applied thickness. For spraying, a control circuit sets the nozzle's lifting speed, and for cylindrical object spraying, a temperature sensor measures the temperature of the area to be coated.According to the measured temperature, spraying controls the nozzle's lifting speed and adjusts the coating thickness. The device according to claim 1, which is adapted to perform the following functions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56148740A JPS5851950A (en) | 1981-09-22 | 1981-09-22 | Automatic spraying apparatus of cylinder body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56148740A JPS5851950A (en) | 1981-09-22 | 1981-09-22 | Automatic spraying apparatus of cylinder body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5851950A true JPS5851950A (en) | 1983-03-26 |
| JPS6151947B2 JPS6151947B2 (en) | 1986-11-11 |
Family
ID=15459555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56148740A Granted JPS5851950A (en) | 1981-09-22 | 1981-09-22 | Automatic spraying apparatus of cylinder body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5851950A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH037967U (en) * | 1989-06-06 | 1991-01-25 |
-
1981
- 1981-09-22 JP JP56148740A patent/JPS5851950A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH037967U (en) * | 1989-06-06 | 1991-01-25 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6151947B2 (en) | 1986-11-11 |
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