【発明の詳細な説明】本発明はカチオン型粉体電着塗装において、塗装浴中で
の被塗物への粉体の沈積による中膜仕」二り不具合を解
消する方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for solving the problem of "intermediate coating" caused by the deposition of powder on the object to be coated in a coating bath in cationic powder electrodeposition coating.
カチオン型粉体電着塗装は、近年開発された新規な塗装
方法であり、粉体樹脂および顔料等をカチオン型樹脂の
水溶ｌＩｔ中に分散させたカチオン型粉体電着塗料浴液
中に、陽極（対極）および陰極となる被塗物を浸漬１７
、両極間に直流１１Ｌ圧を印加することにより、被塗物
上に塗膜をｊＪＩ’ １．１１さ・５Ｊ−１次いテコノ
塗＃Ｘ、 ヲ４：（：’イ、ｊずルコトニヨり高性能を
有する塗膜を形成する塗：！Ｗ 、ＪＪ法゛Ｃある（特
公昭５１ ４０５８５弓−お１（＜イ）０−［−記カチ
オン型粉体電ｉ”Ｊ ’；Ｎ Ｆｌは１！’１１クーｎ
７効率を発揮するため短時間（秒中位）のＪｌｉｉ
？Ｉじｃ１粉体を含まぬ通常の電６Ｑ装（（−出（７、
（・ｉｌｉめて厚い塗膜が得られるという’Ｉ、’、Ｆ
Ｉ’Ａ ”：＊ ｒｊ Ｉ、こいる。Cationic powder electrodeposition coating is a new coating method developed in recent years, in which powder resin, pigments, etc. are dispersed in an aqueous solution of cationic resin in a cationic powder electrodeposition paint bath solution. Immerse the objects to be coated that will become the anode (counter electrode) and cathode 17
By applying a DC 11L pressure between the two electrodes, a coating film is applied to the object to be coated. Coating that forms a coating film with high performance: !W, JJ method ゛C (Special Publication No. 51 40585) 1!'11 Kuun
7 Jlii for a short time (medium seconds) to demonstrate efficiency
? Normal electric 6Q equipment ((-out(7,
(・'I,', F which is said to be able to obtain the thickest coating film)
I'A ”: * rj I, it's here.
カチオン型粉体電着塗装におりる用り′市方式としては
％ Ｊｌη常の電石中装で行ｆＩ’、 ｆ−＋れＣいる
予めＪ３ｉ電［７た状態で被塗物を電着ｉ？ｉ 、Ｉ＋
’＋ Ｒハ、Ｊ（Ｖｙ： ４１ ／）＋１１電入Ｊｉ・
９方式、および被（１例の４゛休を冶］曹ｊ（１’ ／
Ｉン１゜た後に通１ばする全没仙？ｌｔ方式ともＩｃ
ＪＭ用町１１１２であるが、ｆ’４Ｊ級な外観品質を°
）、！５求される場合、通電入（１１ν方式では前記し
たような抄甲４）’ｒで厚い塗膜が得られる特徴が却っ
て災い、Ｊる。For use in cationic powder electrodeposition coating, the method used is to electrodeposit the object to be coated in a state where the electrodeposition is applied in advance using a regular electric stone. ? i, I+
'+ Rha, J (Vy: 41 /) + 11 Deniri Ji・
9 methods, and (1 case of 4゛ rest) Cao j (1' /
Is it a completely dead immortal who passes 1 after entering 1 °? Both lt method and Ic
Although it is JM Town 1112, it has f'4J class appearance quality.
),! When 5 is required, the characteristic that a thick coating film can be obtained when the current is applied (in the case of the 11ν method, a thick coating film can be obtained as described above) becomes a nuisance.
例えば、仮に長さ１０００ ｍｍ （１）被ｊ、１′ｌ
物を１０咽／秒の入イｌｌｉ！スピードで塗装−１６と
Ｊイ１．１．１’ 、、 ｍ着浴に被塗物が入槽しはじ
めてからン皮塗物全体が入槽してしまうのに１００秒を
要Ｊることになり、この間秒１１位て膜厚か増加Ｌ−（
、いく（ハ（Ｔ′得られる塗１１・：（は全体として不
均一な膜厚となろ。For example, if the length is 1000 mm (1) covered j, 1'l
10 times per second! Painting at speed - 16 and 1.1.1' It took 100 seconds from the time the object to be coated began to enter the bath until the entire skin to be coated entered the bath. During this time, the film thickness increased by about 11 seconds L-(
, (c(T') The resulting coating 11:( has an uneven film thickness as a whole.
従って、塗膜に高級）３「均一な外観晶τｔを９２り１
乏される場合は］１０市人１１”ｌ方式は不適当であり
、このような塗膜ｉ （＋−１−り不具合苓１１−じな
い全没通霜方式が採用されている。Therefore, the coating film has a high grade) 3 "uniform appearance crystal τt of 92" and 1
In cases where the coating film is insufficient, the 10-11 inch method is inappropriate, and the fully immersed frost-through method is adopted.
しかしながら、全没ｉ［）ｉ ’ｉ”＋ｉｌ方式４、採
用した場合〔も、１１ケに被塗物水平１１１≦位に才３
いでは喝所１こよ一つで塗膜の厚さに差異が生じ、やは
り６シ・膜（［： −１１り図観」―の不具合となるこ
とが判った。こねについて種）・検討した結果、次の−
１−・うなことが判明した。However, when the total immersion i[)i 'i'' + il method 4 is adopted, the object to be coated is horizontally 111
Now, it was found that a difference in the thickness of the coating film occurred in just one place, which resulted in a problem with the coating. As a result, the following −
1- It turned out to be an eel.
すなわち、下記第１表からも明らかなようにカナオン型
粉体電着塗料は通常の粉体を含有しないγトを着塗料と
比較し′Ｃ塗料中に含まれる固形物質（通常重着塗料で
は龜１１科、ｈアオンノ（ツ粉体ｔａ着桧料では合成樹
脂ｒ：☆粉体およびｒｒ目［）の４ｉ１が多い。In other words, as is clear from Table 1 below, Kanon-type powder electrodeposition paints are compared with ordinary powder-free γ-coated paints; There are many synthetic resins r:☆powder and 4i1 of the rr order [) in powder ta cypress materials.
ｊ、た、Ｉｉ’１１形物質の油物質関Ｉ Ｙ：’ Ｌｌ
、ｌ’ｅ＋、 ｆＹの点から理論的にはスト−クス、Ｉ
（１が該当）−ろＪ：性メられる。し・ｒノルズ数Ｏ，
（ｉ Ｊ’）、１（（＋１−粒子ｉＹ１ ρ０−液に、
１、る１１に抗、ρ−１゛ｔ’＋ １’ ｂよるｌｉＬ
抗、η＝液の粘度）１）１表数値を１１４（合すれば粒径お、１：び浴中固
形物ｆ′１１１１１ごＪ、り粉体電着ｔｔ料の場合（１
固形１１シη１パ１のベニ１１Ｙがｒｌ」いと考えられ
る。j, T, Ii'11 type substance oil substance I Y:' Ll
, l'e+, fY, theoretically Stokes, I
(1 applies) - RoJ: Being sexually assaulted. s・r Nords number O,
(i J'), 1((+1-particle iY1 ρ0-to the liquid,
1, against ru11, liL due to ρ-1゛t'+1'b
resistance, η = viscosity of liquid) 1) If you add the values in table 1 to 114, the particle size is 1: solids in the bath f'11111.
It is thought that the beni 11Y of the solid 11shi η1pa1 is ``rl''.
一方、実用」−のＳｌｊ着塗装工稈′Ｃ１１、次のよう
なことが考えられる。On the other hand, the following may be considered for practical use.
１ ） 、１１ＹＩ電中ば被塗物から電解ガスが発／Ｉ
：Ｌ、−ｒおり、彼ψ物ｌＩＬ傍はこのガス気と・スに
より合ＩＪＶ、（（’ＩＩ脂微扮体粉体ド降方向と浮上
〕ｊ向に流れを生ずるためストークス式はなり＼ｙノ５
１１１′い。1), Electrolytic gas is generated from the object to be coated during the 11YI electric train/I
:L, -r, and the vicinity of the ψ object lIL is combined by this gas air and s, IJV, ((('II fat fine powder descending direction and floating direction)) Since a flow is generated in the j direction, the Stokes equation is ＼yノ5
111'.
１１）無通↑）１域では被各ρ物の形状、部位、特に水
・１／。11) No communication ↑) In area 1, the shape and part of each ρ object, especially water 1/.
部位てはスト−クス式が成立することがある。The Stokes equation may hold true for some parts.
ｌ１１）電着浴中で合成樹脂截イ１）休の分布が不向−
のまま重着をずれｔｅｌ’不均−１．（塗膜が得られる
。11) Cutting the synthetic resin in an electrodeposition bath 1) Unsuitable distribution of cracks
Shift the heavy clothing while keeping it tel'uneven-1. (A coating film is obtained.
以−１−の結果より、被塗物を入１．．ｊｉｌｊ後、通
電までの間に電着浴中の合成樹脂微粉体のｉＪ％度分布
に差異が生じ、そのまま通′ｉは電ｉ゛１″８Ｉれはｌ
（〒に披Ｑ物水平部位においてＨ・：′！厚に差ｊ′４
が生じ外＆、ｉ１．−１、の仕トリ不具合となることが
あるこ七が判１）た。Based on the results of 1. ．． After applying electricity, a difference occurs in the iJ% distribution of the synthetic resin fine powder in the electrodeposition bath.
(There is a difference in the thickness of H・:′! in the horizontal part of the material
occurs and i1. -1) This may result in a malfunction in the process.
木発明者等は、１″ｉＱ記の１１（１きカナオンを粉体
′１１■ｆ’？■装における浴液中の合成樹脂微粉体の
ｊ、曹度分布の差異を解消する方法として、−１−記第
１）慣の１ｆｆ１重中は被φ物から電解ガスが発’ｆ、
ｔ−”、被・、７′物近傍はこのガス気泡により、微
わ）体についてストークス式はなり立ちう゛・１（いこ
とを逆に利用する方法を発明した。The inventors of the tree proposed a method for eliminating the difference in j and soda content distribution of synthetic resin fine powder in a bath liquid when using 11 (1) of 1''iQ as powder '11 f'?■. -1- Section 1) During the conventional 1ff1 heavy, electrolytic gas is emitted from the object to be φ'f,
We invented a method that takes advantage of the fact that the Stokes equation holds true for the body due to these gas bubbles in the vicinity of the t-'', object, and 7' bodies.
即ち、本発明は被塗物をｌ＠ （＋ｉ＋ｉ （’・ｊ７
、陽］・Ｖ（吉の間に直流１１工圧を印加しでｈデフ（
ン型（１；）体′ｆ１１肯１・′力装を行な・うに当っ
て、十、記ｔＲ、−ｉ’ｉのための７１・７川印加を行
なう前、被塗物に塗１１．；ｌｊか析出Ｌ ｆ、ｃい稈
ＩＵの負の低電圧を印加して？；しパへ１１り１へのｉ
ｉ） 体のｒに Ｉ’＋’１を防ＩＬすることからなる
カチＡンノ（す粉体小管塗装方法を提供する。That is, in the present invention, the object to be coated is l@ (+i+i ('・j7
, positive]・V(by applying DC 11 pressure between positive and negative)
When applying force to the body (1;), apply 11 to the object to be coated before applying the 71. ．． ; lj or precipitate L f, c by applying a low negative voltage of IU? ; Shipa to 11ri 1 to i
i) Provides a powder coating method comprising applying I'+'1 to r of a body.
本発明によれ（」、１ｉｉＪ：記全没Ｊｊｌｌ Ｉｌｉ
力＋（Ｌ Ｃ’ ｌ’１． Ｇ：’（わ）体の１１）＞
車前の無」１０″屯域でのわ）体の沈（６口ξ、Ｉ、す
、被塗物の水平部におりる塗膜の）１□１さ１ζ篤□：
ｌ、’、＋４ノ１することの欠点を改良する。According to the present invention ('', 1iiJ: Completely deceased Jjll Ili
Power + (L C'l'1. G: '(W) body 11)>
Deposition of the body in the 10" area in front of the car (6 mouths ξ, I, Su, the coating film falling on the horizontal part of the object to be coated) 1□1Sa1ζAtsushi:
Improves the disadvantages of adding l,',+4 to 1.
本発明方法で使用Ｊる１記低゛市Ｉｆ： 、’： ＣＩ
、１１市−を塗膜が被ゆ物」二に析出Ｌ ／、４：い稈
バ１の１１ｔｉ＋、１１体的には倫間距ｐ）１［、浴液
比１ｊ（抗に、より１）イ１１低市１１゜は変化するが
、一般には５ Ｖ−１（１０ｖ 、りｆましくは３０Ｖ
〜（３０Ｖである。この１１（、山ｊ１．印加は被塗物
入槽直前に開始し、イのｊ、 ｉｔ： ｉ＋！／・・戸
＋１：＋＋を入イ１νしてもよく、あるいは被塗物弁体
４人槽１゜た直後に開始してもよい。がく［７で低ｊ・
１・Ｃ汁を印加している間は被塗物への粉体の沈澱は防
１１−３＼れる。1 Low city used in the method of the present invention If: , ': CI
, 11 - is precipitated by the coating film L/, 4: 11ti + of the culm bar 1, 11 physically the distance p) 1[, bath liquid ratio 1j (in the direction, more than 1) B11 Low voltage 11° varies, but generally it is 5 V-1 (10 V, preferably 30 V).
~(30V. This 11(, mountain j1. Application may start immediately before entering the object to be coated, j of A, it: i+!/... Door +1: ++ may be input A1ν, or It may be started immediately after the valve body of the object to be coated is 1° in a 4-person tank.
While applying the 1.C liquid, precipitation of powder onto the object to be coated is prevented.
本発明によればＬ記低電圧印加に続いて公知の通常の電
着塗膜析出のための市用苓印力１目、で’ｆ（４着塗膜
を形成せしめ、次いで水洗し、位伺硬化すればよい。According to the present invention, following the application of a low voltage, a 4-coat coating film is formed using a conventional general electric power applied for depositing an electrodeposited coating film, followed by washing with water and positioning. All you have to do is harden it.
以下、実施例および比較例により・本発明を「；Ｙ。Hereinafter, the present invention will be explained by Examples and Comparative Examples.
細に説明する。部および百分率（４仙に特記せぬ限り重
量基準である。Explain in detail. Parts and percentages (unless otherwise specified, parts and percentages are based on weight).
実施例〔１〕力チオン型粉体１ｎ着塗料浴ｙｔｌ ノ１．！ｌ
１ｌｑ４（１）カチオン型樹脂の、；ｌ、ｑ製エピコート１００１（シェル社製エポキシ樹脂）４８８
部、ジェタノールアミン１０５部、イソプロピル゛ｒル
コール２５０ Ｒ１（ヲ８０℃〜８５℃にて３時間還流
下に反応させてｉｔｌ状のアミンエポキシ樹脂を得た。Example [1] Thion-type powder 1N paint bath YTL No.1. ! l
1lq4(1) Cationic resin, ;l,q Epicoat 1001 (epoxy resin manufactured by Shell) 488
105 parts of jetanolamine, 250 parts of isopropyl alcohol (R1) were reacted under reflux at 80°C to 85°C for 3 hours to obtain an itl-like amine epoxy resin.
（２）粉体塗料の調製エピコート１００４（シエルネ１製エボこヤシ樹脂）４
０部、アダクトＢ−１０６５（フエバ社製ブロックイソ
シアネー１− ） ３０部、Ｒ−５５０（石側産業社製
酸化チタン）２９部、ＭＡ −１００（三菱化成社製カ
ーボンブラック）１部を粉体塗料製造の常法によりエク
ストルーダーで溶融混練して）衝撃式粉砕機で粉砕し平
均粒径７．ＩＩの微粉体を得た。(2) Preparation of powder coating Epicoat 1004 (Ebokoyashi resin manufactured by Cierne 1) 4
0 parts, 30 parts of Adduct B-1065 (Block Isocyanate 1- manufactured by Hueva Corporation), 29 parts of R-550 (titanium oxide manufactured by Ishikata Sangyo Co., Ltd.), and 1 part of MA-100 (carbon black manufactured by Mitsubishi Kasei Corporation) were powdered. It was melted and kneaded using an extruder according to the conventional method for manufacturing body paints, and then crushed using an impact crusher to obtain particles with an average particle size of 7. A fine powder of II was obtained.
（３）塗装浴液の調製。(3) Preparation of coating bath liquid.
上記カチオン型樹脂１４３部に氷酢酸６．２部および脱
イオン水５００部を加えて、ディシルバーで充分」夕拌
し、次いで上記粉体塗料２８０部を加え、高速回転ホモ
ジナイザーｒ３０分間混合分散せしめた後、これを固型
分１５％になるまで脱イオン水で稀釈した。6.2 parts of glacial acetic acid and 500 parts of deionized water were added to 143 parts of the above cationic resin, and the mixture was sufficiently stirred using a disilver, and then 280 parts of the above powder coating was added, and the mixture was mixed and dispersed for 30 minutes using a high-speed homogenizer. After that, it was diluted with deionized water to a solids content of 15%.
この浴液のｐＨは５．２、粉体塗料／カチオン性樹脂の
比は２．８／ １ 、ｅｃ温２５℃であった。The pH of this bath liquid was 5.2, the powder coating/cationic resin ratio was 2.8/1, and the EC temperature was 25°C.
〔２〕塗装実験上記の方法で調製したカチオン型粉体電行塗料浴液を電
着槽に移し、第１図に示したリン酸亜鉛処理を施した被
塗物鉄板を陰極に接続し、ステンレス製の陽極を被塗物
Ａ而（第１図参照）と極間距離２０ｃｍとなるように浴
液中に設けた。[2] Painting experiment The cationic powder electrophoretic paint bath prepared by the above method was transferred to an electrodeposition bath, and the zinc phosphate treated iron plate shown in Fig. 1 was connected to the cathode. A stainless steel anode was placed in the bath solution with a distance of 20 cm from the object A to be coated (see Figure 1).
まず、入槽スピード３０ａｎ／分で被塗物を垂直に入１
１１Ｖ Ｌ 、全没後通電を開始した。ナ膜の析出を開
始させるまでの１分間は被塗物に５ｖの負の低電圧を印
加し、次に４００’／、１０秒の直流電圧を印加して電
着中袋した後、無Ｍｎ電で３０−７分のスピードで浴ｌ
（ｋから引き−にげ、常法により水洗焼付した。なお）
槽内の浴液は３℃日常の機械的持拌で常時（宕拌された
状ｊｊＩｊとした。First, the object to be coated is loaded vertically into the tank at a speed of 30 an/min.
11V L, energization was started after the battery had completely subsided. A negative low voltage of 5V was applied to the object to be coated for 1 minute until the deposition of the Mn-free film started, and then a DC voltage of 400'/10 seconds was applied to the object for electrodeposition. Electric bath at a speed of 30-7 minutes
(I pulled it from k, washed it with water and baked it by the usual method.)
The bath liquid in the tank was maintained at 3° C. by regular mechanical stirring.
得られた結果を下表に示す。The results obtained are shown in the table below.
※１ ケラト膜ｊシーｄ（による※２ 表面粗度計（小板ラボラドＩＪ−４１！ｑ）によ
る比較例 １入槽１）１３始から膜厚を得るための電圧（４００ｖ）
を負荷させるまで全＜、電圧を被塗物に印加しない外は
すべて実施例１と同様にして電着塗装し、Ａ、Ｂ、０面
について観察した。*1 Kerato film j seed (according to *2 Comparative example using surface roughness meter (Koita Laborad IJ-41!q) 1 Entering the tank 1) Voltage to obtain film thickness from the beginning of 13 (400v)
Electrodeposition coating was carried out in the same manner as in Example 1, except that no voltage was applied to the object to be coated until the voltage was applied, and surfaces A, B, and 0 were observed.
Ｂ而における塗面凹凸はｌ”Ｉ’ ｌ ＜、’Ｊ’ １
１ｉｌｔ ｌ＋Ｔｌ Ｉ −ｌり劣っていた。The unevenness of the painted surface in B is l"I' l <, 'J' 1
1iltl+TlI-l was inferior.
実施例 ２実施例１と同様の浴液にて、自動中中体塗装実施例浴（１：ｖは容１４ｉ・・１ ：３０もと１７、槽液（
つは機（佐竹式七１１１°機）を用いて］■拌ｊ７、ｊ
；１シト１１吃（７１中体外板に幻し、極比１／１で設
［ビｔ、 Ｌ ７１・。Example 2 Using the same bath liquid as in Example 1, an example bath for automatic intermediate body coating (1:v is the volume 14i...1:30 is 17, the tank liquid (
Using a Tsuha machine (Satake-style 7111° machine)]■ Stir j7, j
; 1 site 11 stouts (71 medium to outer body plate, set at a pole ratio of 1/1 [bit, L 71・.
自動車を割ｌ）ξにより、ハンガーに膚吊し、コンベア
搬送方式て浴液内に投入１７ｋ。コンベ°ｒスピードは
３７＋１． ／分７：液中に投入を開始し、中休をや没
せしめ、１分５０秒間は５０ｖの重圧’５： 車体ヲ９
ｔ トＩ、 −Ｃ印加した後、１１’ｌｉ （１）”（
’ Ｊ−、Ｆ＝１’、’ｉ析出のため６００Ｖの１１÷
［流ｔ１１１圧苓ｔ：ｌｌ Ｉｎ＋さυｌ、゛０この時
間は２０秒であった。中休”’Ｈ１１’ｉｊり出１．）
、薯訃、割法により水沈、焼付ｊ身、６々塗物水・ｌ／
ｒ：ｒ＜ ｔこイ１１当（１１）する虫体のボンネット部について、膜厚Ｎ 外Ｉｔ）、
、表面粗１迂を検Ｎｊ した。After splitting the car, it was hung on a hanger and placed in the bath liquid using a conveyor system for 17k. Conveyor speed is 37+1. / minute 7: Started pouring into the liquid, stopped the intermediate rest, and maintained a heavy pressure of 50V for 1 minute and 50 seconds.'5: Car body 9
After applying tI, -C, 11'li (1)''(
'J-, F=1', 'i 11÷ of 600V for precipitation
[Flow t111 Pressure t:ll In+Sυl,゛0 This time was 20 seconds. Mid-term break"'H11'ij start 1.)
, Japanese yam, submerged in water by splitting method, baked body, 6 times lacquered water/l/
r: r< t11 (11) For the bonnet part of the insect body, the film thickness N (outside It),
, surface roughness was inspected.
ボンネット中心部３０ ｒｍ四方部についての結果は下
記のとおりで良好であった。The results for the 30 rm square area at the center of the bonnet were as follows and were good.
膜厚＝５３ノを外観、＝良好表面粗度＝２〜５μ比較例 ２実施例２において、低電圧を印加さけず、他の条件は同
一にして自Ｑ車をＪ−ｐ ％ シた。結果は下記のとお
りであり、実施例２とけ１較し、ボンネット部の塗膜外
観は大幅に劣り、低電用印加の有用性は明らかであった
。Appearance: Film thickness = 53mm, = Good surface roughness = 2~5μ Comparative Example 2 In Example 2, the vehicle Q was heated by J-p% without applying the low voltage and keeping the other conditions the same. The results are as follows, and compared to Example 2, the appearance of the coating film on the bonnet portion was significantly inferior, and the usefulness of low voltage application was clear.
ルｋ 厚 ＝ ５ ３ ツノ外１硯−不良表面粗度＝５〜３０ノ！Lek Thickness = 5 3 HornOutside 1 inkstone - defectiveSurface roughness = 5~30no!
第１図は実施例１の被塗物を示す図である。Ａ刺よびＣは垂直面、ＢＩＪ水平面を示、ず。FIG. 1 is a diagram showing the object to be coated in Example 1.A and C indicate the vertical plane, and BIJ indicates the horizontal plane.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16441382AJPS5953697A (en) | 1982-09-21 | 1982-09-21 | Method for coating cation type powder by electrodeposition |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16441382AJPS5953697A (en) | 1982-09-21 | 1982-09-21 | Method for coating cation type powder by electrodeposition |
| Publication Number | Publication Date |
|---|---|
| JPS5953697Atrue JPS5953697A (en) | 1984-03-28 |
| JPS6138280B2 JPS6138280B2 (en) | 1986-08-28 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16441382AGrantedJPS5953697A (en) | 1982-09-21 | 1982-09-21 | Method for coating cation type powder by electrodeposition |
| Country | Link |
|---|---|
| JP (1) | JPS5953697A (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4693208A (en)* | 1985-07-15 | 1987-09-15 | Dainippon Screen Mfg. Co., Ltd. | Feeder of oxygen gas containing steam |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4693208A (en)* | 1985-07-15 | 1987-09-15 | Dainippon Screen Mfg. Co., Ltd. | Feeder of oxygen gas containing steam |
| Publication number | Publication date |
|---|---|
| JPS6138280B2 (en) | 1986-08-28 |
| Publication | Publication Date | Title |
|---|---|---|
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