JP3098108B2 - Method and apparatus for cleaning metal objects - Google Patents
Method and apparatus for cleaning metal objectsInfo
- Publication number
- JP3098108B2 JP3098108B2 JP04174377A JP17437792A JP3098108B2 JP 3098108 B2 JP3098108 B2 JP 3098108B2 JP 04174377 A JP04174377 A JP 04174377A JP 17437792 A JP17437792 A JP 17437792A JP 3098108 B2 JP3098108 B2 JP 3098108B2
- Authority
- JP
- Japan
- Prior art keywords
- cleaning
- cleaned
- immersion
- cleaning liquid
- vaporization chamber
- 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 - Fee Related
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Landscapes
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、金属材料、金属製品等
を洗浄するための洗浄方法及び洗浄装置に関し、これら
の熱処理や加工において利用できる。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaning method and a cleaning apparatus for cleaning a metal material, a metal product, and the like, and can be used in heat treatment and processing thereof.
【０００２】[0002]
【背景技術】例えば、炭素鋼の製造において、鋼の機械
的、物理的又は化学的性質を改善するために、焼なま
し、焼ならし、焼入れ、焼戻し等の熱処理を施してい
る。このような熱処理の前又は後において、鋼の表面に
付着した異物を除去するため、鋼を洗浄している。2. Description of the Related Art In the production of carbon steel, for example, heat treatment such as annealing, normalizing, quenching, and tempering is performed to improve the mechanical, physical or chemical properties of the steel. Before or after such a heat treatment, the steel is washed to remove foreign substances adhering to the surface of the steel.
【０００３】従来の洗浄方法では、洗浄液が容れられた
浸漬洗浄槽及び加熱装置と凝縮器が備えられた蒸気洗浄
槽を用い、熱処理前又は後の金属被洗浄物を浸漬洗浄槽
に浸漬して洗浄した後、引き続きこの金属被洗浄物を蒸
気洗浄槽において洗浄液の蒸気で洗浄している。このよ
うな洗浄液としては、通常、トリクロロエタンのような
塩素化炭化水素系溶剤を使用している。In a conventional cleaning method, a metal cleaning object before or after heat treatment is immersed in a immersion cleaning tank using a immersion cleaning tank containing a cleaning liquid and a steam cleaning tank provided with a heating device and a condenser. After the cleaning, the object to be cleaned is subsequently cleaned with the vapor of the cleaning liquid in the vapor cleaning tank. As such a cleaning liquid, a chlorinated hydrocarbon solvent such as trichloroethane is usually used.
【０００４】[0004]
【発明が解決しようとする課題】上述したように、従来
の金属被洗浄物の洗浄方法によれば、使用している洗浄
液は、トリクロロエタンのような有害な塩素化炭化水素
系溶剤であり、しかも蒸気洗浄槽が開放系であるため、
洗浄液の蒸気が外部に漏出して、作業者の健康に悪影響
を与え、また大気中に拡散して環境破壊の一因ともなっ
ていた。As described above, according to the conventional method for cleaning an object to be cleaned, the cleaning liquid used is a harmful chlorinated hydrocarbon solvent such as trichloroethane, and Since the steam cleaning tank is an open system,
The vapor of the cleaning liquid leaked to the outside, adversely affected the health of workers, and diffused into the atmosphere, causing environmental damage.
【０００５】一方、塩素化炭化水素系溶剤以外の溶剤を
使用した場合、このような問題はなくなるが、洗浄力に
問題が生じる。そこで、本発明は、有害な洗浄液を使用
しないで、金属被洗浄物の効率的な洗浄を可能とする洗
浄方法及び洗浄装置を提供することを目的とする。[0005] On the other hand, when a solvent other than the chlorinated hydrocarbon solvent is used, such a problem is eliminated, but a problem occurs in the detergency. Therefore, an object of the present invention is to provide a cleaning method and a cleaning apparatus that enable efficient cleaning of an object to be cleaned without using a harmful cleaning liquid.
【０００６】[0006]
【課題を解決するための手段及び作用】本発明に係る金
属被洗浄物の洗浄方法は、減圧下で鉱油系又は合成油系
洗浄液を沸騰させ、この洗浄液中で金属被洗浄物を浸漬
洗浄した後、洗浄した前記金属被洗浄物を減圧下に置い
て、この金属被洗浄物に付着した洗浄液を気化除去する
ことを特徴とする。According to the present invention, a method for cleaning a metal object to be cleaned according to the present invention comprises boiling a mineral or synthetic oil-based cleaning solution under reduced pressure, and immersing and cleaning the metal object in the cleaning solution. Thereafter, the washed object to be cleaned is placed under reduced pressure, and a cleaning liquid attached to the object to be cleaned is vaporized and removed.
【０００７】前記金属被洗浄物とは、焼入れ処理等の熱
処理後の金属材料や機械加工後の金属製品であり、後工
程で洗浄処理されるものである。前記浸漬洗浄工程で使
用する鉱油系又は合成油系洗浄液としては、任意のもの
を使用することができるが、初留温度が 100〜 350℃
（１atm ）程度のものが好ましい。鉱油系又は合成油系
洗浄液で初留温度が 100℃未満のものは、非常に軽質で
ある。従って、この浸漬洗浄工程においてこのような洗
浄液を使用すると、引火性が強く、危険である。The metal object to be cleaned is a metal material after a heat treatment such as a quenching process or a metal product after machining, and is a cleaning process in a later step. As the mineral oil-based or synthetic oil-based cleaning liquid used in the immersion cleaning step, any liquid can be used, but the initial distillation temperature is 100 to 350 ° C.
(1 atm) is preferred. Mineral or synthetic oil-based cleaning liquids with an initial distillation temperature of less than 100 ° C are very light. Therefore, if such a cleaning liquid is used in the immersion cleaning step, it is highly flammable and dangerous.
【０００８】具体的には、鉱油では特にパラフィン系鉱
油が好ましい。また、合成油ではポリブテン、ポリアル
ファオレフィン、アルキルベンゼン、アルキルナフタレ
ン等を使用できる。なお、前記浸漬洗浄工程で使用する
鉱油系又は合成油系洗浄液は、前記初留温度の条件を満
たすものであれば問題はないが、この条件に加えてこの
初留温度と90％留出温度との差が比較的小さいものが良
好な結果を示す場合がある。この温度差は、 150℃以
下、好ましくは 100℃以下、より好ましくは50℃以下で
ある。Specifically, paraffinic mineral oil is particularly preferred as the mineral oil. For synthetic oils, polybutene, polyalphaolefin, alkylbenzene, alkylnaphthalene and the like can be used. The mineral oil-based or synthetic oil-based cleaning liquid used in the immersion cleaning step is not problematic as long as it satisfies the above-mentioned initial distillation temperature conditions. Those having a relatively small difference from the above may show good results. This temperature difference is 150 ° C or less, preferably 100 ° C or less, more preferably 50 ° C or less.
【０００９】前記浸漬洗浄工程で使用する鉱油系又は合
成油系洗浄液には、酸化防止剤を添加しておいてもよ
い。このために使用する酸化防止剤としては、沸点の高
い酸化防止剤、好ましくは沸点が 100℃以上、より好ま
しくは沸点が 200℃以上のものを使用する。具体的に
は、フェノール系〔例えば、４，４′−メチレンビス
（２，６−ジ−ｔ−ブチルフェノール）〕、金属系〔例
えば、ＺｎＤＴＰ（ジチオリン酸亜鉛）〕、アミン系等
の酸化防止剤を使用することができる。An antioxidant may be added to the mineral or synthetic oil-based cleaning liquid used in the immersion cleaning step. As the antioxidant used for this purpose, an antioxidant having a high boiling point, preferably having a boiling point of 100 ° C. or more, more preferably having a boiling point of 200 ° C. or more, is used. Specifically, antioxidants such as phenol-based (for example, 4,4'-methylenebis (2,6-di-t-butylphenol)), metal-based (for example, ZnDTP (zinc dithiophosphate)), and amine-based antioxidants are used. Can be used.
【００１０】この洗浄方法で使用する金属被洗浄物の洗
浄装置は、減圧手段を有する気化室と、減圧手段及び加
熱手段を有する浸漬洗浄槽とを備え、前記気化室と浸漬
洗浄槽とを開閉自在で、かつ金属被洗浄物が通る大きさ
の通路を介して連結したことを特徴とする。The apparatus for cleaning an object to be cleaned used in this cleaning method includes a vaporization chamber having a decompression means, and an immersion cleaning tank having a decompression means and a heating means, and opens and closes the vaporization chamber and the immersion cleaning tank. It is characterized in that it is connected via a passage that is free and large enough to pass through the metal object to be cleaned.
【００１１】前記通路は、蓋のような開閉手段を有し、
かつ金属被洗浄物を装置外に露出させないで気化室と浸
漬洗浄槽間を移動させることができるものであれば任意
である。例えば、側面部を一部共通にしてここに金属被
洗浄物が通る大きさの開口部を形成し、この部分を通路
にしてもよく、又は金属被洗浄物が通る大きさの筒状の
連結部分を両者間に設置し、これを通路にしてもよい。The passage has opening / closing means such as a lid,
In addition, any material can be used as long as it can be moved between the vaporization chamber and the immersion cleaning tank without exposing the metal workpiece to the outside of the apparatus. For example, the side portion may be partially common to form an opening having a size through which the metal object to be washed passes, and this portion may be used as a passage, or a cylindrical connection having a size through which the metal object to be washed passes. The part may be installed between them, and this may be used as a passage.
【００１２】また、前記気化室と浸漬洗浄槽には、それ
ぞれ減圧手段を設けてもよいが、開閉弁等の切り換え手
段を介して共通の減圧手段を接続し、この切り換え手段
の切り換えによって気化室又は浸漬洗浄槽のいずれかを
選択的に減圧できるようにしてもよい。The vaporization chamber and the immersion cleaning tank may be provided with a decompression means, respectively. A common decompression means is connected through switching means such as an on-off valve or the like, and the vaporization chamber is switched by switching the switching means. Alternatively, the pressure in one of the immersion cleaning tanks may be selectively reduced.
【００１３】[0013]
【実施例】図１を参照して本発明の一実施例を説明す
る。先ず、本実施例で使用する金属被洗浄物の洗浄装置
の構成を説明する。図１に示すように、この洗浄装置
は、気化室11と浸漬洗浄槽12とが連結されて構成され
る。前記気化室11は、側面部13、上面部14及び底面部15
を有し、これらが一体として密閉状態で構成され、この
側面部13には開閉自在の第１の蓋16が設けられている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to FIG. First, the structure of the apparatus for cleaning an object to be cleaned used in the present embodiment will be described. As shown in FIG. 1, the cleaning apparatus is configured by connecting a vaporizing chamber 11 and an immersion cleaning tank 12 to each other. The vaporization chamber 11 has a side portion 13, an upper portion 14, and a bottom portion 15
These are integrally formed in a sealed state, and a side cover 13 is provided with a first lid 16 that can be freely opened and closed.
【００１４】前記浸漬洗浄槽12は、気化室11の側面部13
の一部13A を共有した側面部17、上面部18及び底面部19
有し、これらが一体として密閉状態で構成され、この共
有の側面部13A を介して両者11,12 が連結されている。
この共有の側面部13A には、開閉自在の第２の蓋21が設
けられ、この蓋21が開けられた際の開口部が通路となっ
て両者11,12 間の金属被洗浄物22の移動が行われる。ま
た、この浸漬洗浄槽12の下部には、洗浄液23の加熱手段
であるヒータ24が設けられている。The immersion washing tank 12 is provided with a side portion 13 of the vaporizing chamber 11.
Side portion 17, top portion 18 and bottom portion 19 that share part 13A of
These are integrally formed in a hermetically sealed state, and the two 11 and 12 are connected to each other via the common side surface 13A.
An openable and closable second lid 21 is provided on the common side surface portion 13A, and an opening when the lid 21 is opened serves as a passage to move the metal object 22 between the two. Is performed. Further, a heater 24 as a heating means for the cleaning liquid 23 is provided below the immersion cleaning tank 12.
【００１５】そして、減圧手段である真空ポンプ25及び
不活性ガスであるＮ2 ガス26が共通の管路27及びこの管
路27から分岐した管路27A により前記気化室11と浸漬洗
浄槽12に接続されている。これらの管路27,27A途中に
は、減圧やＮ2 ガス26の供給を調整する開閉弁28が４個
所に設けられている。前記真空ポンプ25は、１Torr以下
までの減圧制御が可能となっているものである。A vacuum pump 25 serving as a pressure reducing means and an N 2 gas 26 serving as an inert gas are supplied to the vaporizing chamber 11 and the immersion washing tank 12 by a common pipe 27 and a pipe 27A branched from the pipe 27. It is connected. On the way of these pipes 27, 27A, on-off valves 28 for adjusting the pressure reduction and the supply of N 2 gas 26 are provided at four locations. The vacuum pump 25 is capable of controlling the pressure to 1 Torr or less.
【００１６】また、この浸漬洗浄槽12には、金属被洗浄
物22を槽12内の洗浄液23中に保持するための図示しない
保持手段が設けられている。この槽12内には、洗浄液23
として初留温度が 260℃（１atm ）程度、かつ90％留出
温度が 350℃（１atm ）程度の鉱油が容れられている。
この洗浄液23には、酸化防止剤として４，４′−メチレ
ンビス（２，６−ジ−ｔ−ブチルフェノール）が 0.2 w
t ％添加されている。The immersion cleaning tank 12 is provided with a holding means (not shown) for holding the object to be cleaned 22 in the cleaning liquid 23 in the tank 12. The cleaning liquid 23 is contained in the tank 12.
Mineral oil having an initial distillation temperature of about 260 ° C (1 atm) and a 90% distillation temperature of about 350 ° C (1 atm) is contained.
The cleaning solution 23 contains 0.24 w of 4,4'-methylenebis (2,6-di-t-butylphenol) as an antioxidant.
t% is added.
【００１７】次に、上記洗浄装置を使用した本実施例に
係る金属被洗浄物22の洗浄方法を説明する。先ず、焼入
れ処理後の鋼のような金属被洗浄物22を気化室11に入れ
て、第１の蓋16を閉じる。そして、真空ポンプ25を作動
させ、開閉弁28の調整により気化室11内を真空排気した
後、Ｎ2 ガス26をこの気化室11内に供給して復圧する。
次に、第２の蓋21を開いてこの金属被洗浄物22をＮ2 ガ
ス26が充填された浸漬洗浄槽12に入れた後、加熱された
洗浄液23中に浸漬する。Next, a method of cleaning the object to be cleaned 22 according to the present embodiment using the above-described cleaning apparatus will be described. First, an object to be cleaned 22 such as steel after quenching is put into the vaporization chamber 11 and the first lid 16 is closed. Then, the vacuum pump 25 is operated, the inside of the vaporization chamber 11 is evacuated by adjusting the on-off valve 28, and then the N 2 gas 26 is supplied into the vaporization chamber 11 to recover the pressure.
Next, the second lid 21 is opened to put the metal object 22 into the immersion cleaning tank 12 filled with the N 2 gas 26 and then immersed in the heated cleaning liquid 23.
【００１８】次に、真空ポンプ25を作動させ、開閉弁28
の調整により浸漬洗浄槽12内を減圧（ 500Torr以下）し
た後、ヒータ24で洗浄液23を加熱沸騰させ、この状態で
所定時間金属被洗浄物22を洗浄液23中に浸漬しておく。
次に、金属被洗浄物22の洗浄終了後、この浸漬洗浄槽12
内をＮ2 ガス26で復圧する。Next, the vacuum pump 25 is operated, and the on-off valve 28 is opened.
After the pressure in the immersion cleaning tank 12 is reduced (500 Torr or less) by the adjustment of the above, the cleaning liquid 23 is heated and boiled by the heater 24, and the metal object 22 is immersed in the cleaning liquid 23 for a predetermined time in this state.
Next, after the cleaning of the metal workpiece 22 is completed,
The internal pressure is restored with N 2 gas 26.
【００１９】次に、前記金属被洗浄物22を洗浄液23から
引き上げた後、気化室11に移す。次に、この気化室11内
を減圧し、金属被洗浄物22に付着した洗浄液23を気化さ
せて除去する。次に、この気化室11内をＮ2 ガス26で復
圧した後、第１の蓋16を開いてこの金属被洗浄物22を気
化室11外に取り出す。Next, after the object to be cleaned 22 is pulled up from the cleaning liquid 23, it is transferred to the vaporization chamber 11. Next, the inside of the vaporization chamber 11 is decompressed, and the cleaning liquid 23 attached to the metal workpiece 22 is vaporized and removed. Next, after the inside of the vaporization chamber 11 is restored with N 2 gas 26, the first lid 16 is opened and the metal object 22 is taken out of the vaporization chamber 11.
【００２０】上記実施例によれば、金属被洗浄物22の洗
浄液23として、鉱油を用いているため、従来の有害な塩
素化炭化水素系溶剤を用いた場合の作業者や自然環境へ
の悪影響を回避することができ、安全な洗浄作業が可能
になる。According to the above embodiment, since the mineral oil is used as the cleaning liquid 23 for the metal object 22 to be cleaned, the use of the conventional harmful chlorinated hydrocarbon solvent has an adverse effect on workers and the natural environment. Can be avoided, and a safe washing operation can be performed.
【００２１】また、金属被洗浄物22を浸漬洗浄槽12に入
れる際、この浸漬洗浄槽12と連結された気化室11内を窒
素雰囲気として、この気化室11から浸漬洗浄槽12に入れ
るようにしてあるため、浸漬洗浄槽12内の洗浄液23蒸気
と空気との接触が避けられる。これにより、金属被洗浄
物22を浸漬洗浄槽12に直接入れる場合の発火や爆発を防
ぐことができ、しかも洗浄液23の劣化を抑えることもで
きる。When the object to be cleaned 22 is placed in the immersion cleaning tank 12, the interior of the vaporization chamber 11 connected to the immersion cleaning tank 12 is set to a nitrogen atmosphere, and the metal object 22 is introduced into the immersion cleaning tank 12 from the vaporization chamber 11. Therefore, contact between the vapor of the cleaning liquid 23 in the immersion cleaning tank 12 and air is avoided. Accordingly, it is possible to prevent ignition or explosion when the metal workpiece 22 is directly put into the immersion cleaning tank 12, and it is also possible to suppress the deterioration of the cleaning liquid 23.
【００２２】浸漬洗浄槽12において金属被洗浄物22を洗
浄液23中で浸漬洗浄する際、減圧状態で洗浄液23を加熱
するようにしたので、常圧で加熱する場合と比べて容易
に沸騰し、これにより洗浄液23の洗浄力を高めることが
できる。また、金属被洗浄物22の洗浄後、この金属被洗
浄物22を気化室11に移し、減圧状態で金属被洗浄物22に
付着した洗浄液23を気化除去するようにしたため、常圧
では気化しにくい鉱油であっても容易に除去することが
でき、洗浄液23除去の手間が省ける。When the object to be cleaned 22 is immersed and cleaned in the cleaning liquid 23 in the immersion cleaning tank 12, the cleaning liquid 23 is heated under reduced pressure, so that it boils more easily than when heated at normal pressure. Thereby, the cleaning power of the cleaning liquid 23 can be increased. Further, after cleaning the metal object 22, the metal object 22 is moved to the vaporization chamber 11, and the cleaning liquid 23 attached to the metal object 22 is evaporated and removed under reduced pressure. Even a difficult mineral oil can be easily removed, and the trouble of removing the cleaning liquid 23 can be omitted.
【００２３】更に、気化室11と浸漬洗浄槽12は、いずれ
も密閉可能に構成されているため、洗浄液23蒸気の装置
外への漏出を阻止できる。加えて、気化室11と浸漬洗浄
槽12とを連結して設けているため、金属被洗浄物22を洗
浄した後の洗浄液23の除去工程を連続して行うことがで
き、作業効率が向上する。Further, since both the vaporization chamber 11 and the immersion cleaning tank 12 are configured so as to be able to be sealed, leakage of the cleaning liquid 23 vapor to the outside of the apparatus can be prevented. In addition, since the vaporization chamber 11 and the immersion cleaning tank 12 are connected to each other, the step of removing the cleaning liquid 23 after cleaning the metal object 22 can be continuously performed, thereby improving the working efficiency. .
【００２４】なお、上記実施例では、洗浄液23として、
鉱油を用いたが、鉱油の代わりに合成油を用いても同様
の効果が得られる。また、前記気化室11には、必要に応
じて加熱手段としてのヒータ29を設けてもよい。In the above embodiment, the cleaning liquid 23 is
Although mineral oil was used, a similar effect can be obtained by using synthetic oil instead of mineral oil. Further, the vaporization chamber 11 may be provided with a heater 29 as a heating means as needed.
【００２５】[0025]
【発明の効果】本発明に係る金属被洗浄物の洗浄方法及
び洗浄装置によれば、洗浄液による作業者や自然環境へ
の悪影響を回避することができ、しかも効率的な洗浄が
可能となる。According to the method and apparatus for cleaning a metal object to be cleaned according to the present invention, it is possible to avoid the adverse effect on the operator and the natural environment due to the cleaning liquid, and it is possible to perform efficient cleaning.
【図１】本発明の一実施例において使用する金属被洗浄
物の洗浄装置の概略図である。FIG. 1 is a schematic view of an apparatus for cleaning an object to be cleaned used in one embodiment of the present invention.
11 気化室 12 浸漬洗浄槽 22 金属被洗浄物 23 洗浄液 24 加熱手段であるヒータ 25 減圧手段である真空ポンプ 11 Vaporization chamber 12 Immersion cleaning tank 22 Metal cleaning object 23 Cleaning liquid 24 Heater as heating means 25 Vacuum pump as decompression means
───────────────────────────────────────────────────── フロントページの続き (72)発明者 下里 吉計 大阪府大阪市西区京町堀二丁目４番７号 中外炉工業株式会社内 (56)参考文献 特開 平５−179473（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) C23G 5/00 - 5/04 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Yoshikei Shimozato 2-7-4 Kyomachibori, Nishi-ku, Osaka-shi, Osaka Inside Chugai Furnace Industry Co., Ltd. (56) References JP-A-5-179473 (JP, A (58) Fields surveyed (Int. Cl. 7 , DB name) C23G 5/00-5/04
Claims (2)
騰させ、この洗浄液中で金属被洗浄物を浸漬洗浄した
後、 洗浄した前記金属被洗浄物を減圧下に置いて、この金属
被洗浄物に付着した洗浄液を気化除去することを特徴と
する金属被洗浄物の洗浄方法。1. A method for boiling a mineral oil-based or synthetic oil-based cleaning solution under reduced pressure, immersing and washing a metal object to be washed in the cleaning solution, placing the washed metal object under reduced pressure, A method for cleaning an object to be cleaned, wherein a cleaning liquid attached to the object to be cleaned is vaporized and removed.
び加熱手段を有する浸漬洗浄槽とを備え、前記気化室と
浸漬洗浄槽とを開閉自在で、かつ金属被洗浄物が通る大
きさの通路を介して連結したことを特徴とする金属被洗
浄物の洗浄装置。2. A vaporization chamber having a decompression means, and an immersion cleaning tank having a decompression means and a heating means, wherein the vaporization chamber and the immersion cleaning tank can be freely opened and closed, and have a size such that an object to be cleaned can pass therethrough. An apparatus for cleaning an object to be cleaned, wherein the apparatus is connected via a passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04174377A JP3098108B2 (en) | 1992-07-01 | 1992-07-01 | Method and apparatus for cleaning metal objects |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04174377A JP3098108B2 (en) | 1992-07-01 | 1992-07-01 | Method and apparatus for cleaning metal objects |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0617274A JPH0617274A (en) | 1994-01-25 |
| JP3098108B2 true JP3098108B2 (en) | 2000-10-16 |
Family
ID=15977554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP04174377A Expired - Fee Related JP3098108B2 (en) | 1992-07-01 | 1992-07-01 | Method and apparatus for cleaning metal objects |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3098108B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106119881B (en) * | 2016-07-25 | 2019-01-01 | 广德玉龙泵业有限公司 | A kind of water pump vane cleaning agent |
-
1992
- 1992-07-01 JP JP04174377A patent/JP3098108B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0617274A (en) | 1994-01-25 |
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