JPH02297816A - Cleaning method for electric equipment member - Google Patents

Cleaning method for electric equipment member

Info

Publication number
JPH02297816A
JPH02297816A JP3453089A JP3453089A JPH02297816A JP H02297816 A JPH02297816 A JP H02297816A JP 3453089 A JP3453089 A JP 3453089A JP 3453089 A JP3453089 A JP 3453089A JP H02297816 A JPH02297816 A JP H02297816A
Authority
JP
Japan
Prior art keywords
sublimate
nozzle
cleaning
contact piece
particles
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
JP3453089A
Other languages
Japanese (ja)
Inventor
Yoshitoshi Sunakawa
佳敬 砂川
Masatoshi Oba
正利 大場
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.)
Omron Corp
Original Assignee
Omron Corp
Omron Tateisi Electronics Co
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 Omron Corp, Omron Tateisi Electronics Co filed Critical Omron Corp
Priority to JP3453089A priority Critical patent/JPH02297816A/en
Publication of JPH02297816A publication Critical patent/JPH02297816A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To effectively perform cleaning for removing organic attachments, burrs of a resin molding member and molding powder by spraying particles of sublimate at high speed on the surface of a contact piece or a resin molding member of an electric equipment. CONSTITUTION:A nozzle 4 is communicated with a tank 5 storing a sublimate, e.g. liquid CO2 through a hose 6, and the sublimate in the tank 5 is sent to the nozzle 4 through the hose 6 at a flow rate corresponding to the opening of a main valve 7, and then, sprayed from the nozzle 4 at high speed to a member 1 at a flow rate and a flow velocity controlled by a sub-valve 8. Organic attachments and inorganic attachments on the surface of an electric equipment contact piece member are scatteredly removed by energy which sprays particles of sublimate such as Dry Ice at high speed, and burrs of a resin molding member are broken off and also scatteredly removed together with molding powder.

Description

【発明の詳細な説明】 (イ)産業上の利用分野 この発明は電気機器部材の清浄方法に関し、さらに詳し
くは、電気機器部材の接点片の表面の付着物、もしくは
樹脂成形品からなる電気機器部材のパリ、成形粉等の付
着物を除去する清浄方法に関する。
Detailed Description of the Invention (a) Industrial Application Field The present invention relates to a method for cleaning electrical equipment members, and more particularly, to cleaning of deposits on the surface of contact pieces of electrical equipment members or electrical equipment made of resin molded products. This invention relates to a cleaning method for removing deposits such as dust and molding powder from parts.

(ロ)従来の技術 一般に、リレー、スイッチなどの電気機器において、そ
の接点端子等に固着した接点片の表面に有機物質等から
なる付着物が付いていると、初期接触抵抗が上昇し、接
触不良を生じやすくなる。
(b) Conventional technology In general, in electrical equipment such as relays and switches, if the surface of the contact piece fixed to the contact terminal etc. has deposits made of organic substances, etc., the initial contact resistance increases and the contact Defects are more likely to occur.

特に信号用リレーやスイッチ等に使用される電気接点に
あっては、接点開閉時における信号電圧、電流が微弱な
ため、接点片の表面に有機物質がわずかでも付着してい
ると接触不良が発生する。ために信号用リレー等の接点
片の表面には、大電力を開閉するリレーよりも高い清浄
度が要求された。
Especially for electrical contacts used in signal relays and switches, the signal voltage and current when opening and closing the contacts are weak, so if even a small amount of organic material adheres to the surface of the contact piece, contact failure will occur. do. For this reason, the surfaces of contact pieces such as signal relays are required to have a higher level of cleanliness than relays that open and close large amounts of power.

かかる要求を満たそうとする従来の清浄法は次のように
大別される。
Conventional cleaning methods that attempt to meet such requirements can be broadly classified as follows.

■ 湿式洗浄法 たとえばフレオンなどの有機溶剤で接点片を洗浄する方
法。
■ Wet cleaning method For example, a method of cleaning contact pieces with an organic solvent such as Freon.

■ 乾式洗浄法 CD2レーザー光を接点片の表面に照射して付着物を飛
散させたり、微細で硬い粒子(たとえばガラス玉)を高
速度で当てたり(ドライホーニング)、その他セサノオ
ゾン、プラズマ、イオンを用いて洗浄する方法。
■ Dry cleaning method CD2 laser light is irradiated onto the surface of the contact piece to scatter deposits, fine hard particles (e.g. glass beads) are applied at high speed (dry honing), and other methods such as sesano ozone, plasma, and ions are used. How to clean using

また、上記接点片を備えるような電気機器部材であって
、PPSやPBTなどの樹脂材から成形された部材では
、その成形品部材のエツジ部やコーナ一部あるいはパー
ティング・ライン部にパリが生じたり、微細な成形粉が
付着することが知られているが、これらが部品輸送中や
製品に組み込まれて使用されている段階で取れて、スイ
ッチやリレーの接点片の表面に付着すると、前記と同様
に接触抵抗の増大あるいは導通不足などの接触不良が生
じる。
In addition, in the case of electrical equipment parts that are equipped with the above-mentioned contact pieces and are molded from resin materials such as PPS or PBT, there may be a break at the edges, corners, or parting lines of the molded parts. It is known that fine molding powder may form or adhere to the surface of the contact piece of a switch or relay, but if it comes off during the transportation of parts or when it is used after being incorporated into a product, and it adheres to the surface of the contact piece of a switch or relay, Similarly to the above, contact failures such as increased contact resistance or insufficient conduction occur.

ために、スイッチやリレーなどの樹脂材製ケース、カバ
ーの成形品部材にもパリ取り、洗浄を施す必要があり、
従来では超音波洗浄のような湿式洗浄、バレル洗浄、エ
ア洗浄が採用されていた。
Therefore, it is necessary to deburr and clean molded parts such as resin cases and covers such as switches and relays.
Conventionally, wet cleaning such as ultrasonic cleaning, barrel cleaning, and air cleaning were used.

(ハ)発明が解決しようとする問題点 しかるに、前記従来の有機物質等付着物除去方法のうち
、湿式洗浄では、除去した付着物が再付着する、溶剤液
管理が要求される、洗浄槽等の大型の設備を備えねばな
らない、有機溶剤の種類によっては特定組成の有機物質
付着物が溶は難い、無機物質の付着物は溶は難いので除
去し難い、等の問題があった。
(c) Problems to be Solved by the Invention However, among the conventional methods for removing deposits such as organic substances, in wet cleaning, removed deposits re-deposit, solvent solution management is required, cleaning tanks, etc. However, depending on the type of organic solvent, it is difficult to dissolve organic substance deposits of a specific composition, and inorganic substance deposits are difficult to dissolve and therefore difficult to remove.

また、乾式洗浄でも、CD2レーザー法は無機物質に効
果がほとんどな(、As5y状態では洗浄できず、装置
が高価である難点があり、ドライホーニング法は粒子が
新たな付着物となって残り、接触不良の原因となりやす
かった。またその他の方法では連続処理が困難で、As
5y状態では洗浄できなかった。
In addition, even in dry cleaning, the CD2 laser method has little effect on inorganic substances (it cannot be cleaned in the As5y state, and the equipment is expensive), and the dry honing method leaves particles as new deposits. It was easy to cause poor contact.Also, continuous processing was difficult with other methods, and As
Washing could not be performed in the 5y state.

さらに、樹脂成形品部材の前記従来洗浄方法では湿式洗
浄はパリ取り効果がうずく、微細な成形粉が取り難く、
バレル洗浄では湿式等の再洗浄が必要で、バレル材付着
の問題があった。またエア洗浄によれば微細な成形粉が
取れ難く、かつ静電気の発生がある点で、いずれの洗浄
法にも問題が残っていた。
Furthermore, in the conventional cleaning method for resin molded parts, wet cleaning has a poor deburring effect and is difficult to remove fine molding powder.
Barrel cleaning required re-cleaning using a wet method, and there was a problem with barrel material adhesion. In addition, air cleaning has problems in that it is difficult to remove fine molding powder and static electricity is generated.

この発明は上記問題に鑑み、有機物質付着物、樹脂成形
品部材のパリ取り、成形粉除去のいずれにも効果的な洗
浄が実行できる電気機器部材の洗浄方法の提供を目的と
する。
SUMMARY OF THE INVENTION In view of the above-mentioned problems, the present invention aims to provide a method for cleaning electrical equipment parts that is effective in removing organic deposits, flakes from resin molded parts, and molding powder.

(ニ)問題点を解決するための手段 この発明は、電気機器の接点片部材または樹脂成形品部
材の表面に昇華物の粒子を高速度で吹付ける電気機器部
材の洗浄方法を特徴とする。
(d) Means for Solving the Problems The present invention is characterized by a method for cleaning electrical equipment parts, in which sublimate particles are sprayed at high velocity onto the surface of a contact piece member or a resin molded part member of an electrical equipment.

(ホ)作用 この発明によれば、たとえばドライアイスのような昇華
物粒子を高速度で吹付けたエネルギーにより、電気機器
接点片部材の表面の有機物質付着物および無機物質付着
物が飛散除去され、樹脂成形品部材ではパリが折り取ら
れると共に、成形粉と一緒に飛散除去される。
(E) Effect According to the present invention, the organic and inorganic deposits on the surface of the electrical equipment contact piece member are scattered and removed by the energy of spraying sublimate particles such as dry ice at high speed. In the resin molded product member, the edges are broken off and removed together with the molding powder.

(へ)発明の効果 この発明は有機物質付着物および無機物質付着物の除去
、パリ取り、成形粉の除去にドライアイスのような昇華
物粒子を用いるから、次のような効果を奏するに至る。
(F) Effects of the Invention This invention uses sublimate particles such as dry ice to remove organic and inorganic deposits, deburr, and remove molding powder, resulting in the following effects. .

O吹付けた昇華物粒子が昇華すれば電気機器部材表面に
は何も残らないから、新たな付着物の発生がなく、溶剤
洗浄のような付着物の再付着もない。
Once the O-sprayed sublimate particles sublimate, nothing remains on the surface of the electrical equipment member, so no new deposits are generated, and there is no re-deposition of deposits as would be the case with solvent cleaning.

O高速度吹付けによるブラスト作用にて、接点片表面の
付着物の除去が確実となり、成形品部材の場合はパリ取
りとそのパリの吹飛ばしく成形粉除去を含む)が同時に
行なえる。
The blasting action of high-speed O spraying ensures the removal of deposits on the surface of the contact piece, and in the case of molded parts, it is possible to simultaneously remove burrs (including removing molding powder by blowing away the burrs).

O昇華物は常温で昇華するので乾燥工程がいらず、洗浄
装置も大型化せず、しかも連続処理が可能である。
Since the O sublimate sublimates at room temperature, there is no need for a drying process, the cleaning equipment does not need to be large, and continuous processing is possible.

O昇華物は毒性がないので取扱いが容易であると共に、
As5y状態でも洗浄が行なえる。
Since O sublimate is non-toxic, it is easy to handle, and
Cleaning can be performed even in the As5y state.

(ト)実施例 以下、この発明の実施例を図面を用いて説明する。(g) Examples Embodiments of the present invention will be described below with reference to the drawings.

第1図は第2図のような接点片を有するフープ材1をこ
の発明方法で洗浄処理する場合の説明図で、洗浄処理さ
れるフープ材1は複数の可動接触片2を所定間隔で平行
に配列したリン青銅製のものからなり、可動接触片2は
幅方向に2分割してなる先端部に接点片3.3を溶接で
それぞれ固着したツイン接点構造を有している。
FIG. 1 is an explanatory diagram when a hoop material 1 having contact pieces as shown in FIG. 2 is cleaned by the method of the present invention. The movable contact piece 2 is made of phosphor bronze and has a twin contact structure in which the movable contact piece 2 is divided into two in the width direction and a contact piece 3.3 is fixed to each end by welding.

また、第2図のフープ材1は接点片3・・・が該材の−
面側に露呈しており、従って第1図の洗浄処理ではフー
プ材1に対し、その−面側から昇華物粒子Aをノズル4
により高速度で吹付けるように構成されている。即ち、
フープ材1・・・が第1図の矢印方向にたとえばベルト
コンベヤにて接点片3を上面側にして連続的に搬送され
る時、ノズル4は搬送路の上方から昇華物粒子へを吹付
ける。
In addition, the hoop material 1 in FIG. 2 has contact pieces 3... of the material.
Therefore, in the cleaning process shown in FIG.
It is configured to spray at high speed. That is,
When the hoop material 1 is continuously conveyed in the direction of the arrow in FIG. 1, for example, by a belt conveyor, with the contact piece 3 facing upward, the nozzle 4 sprays the sublimate particles from above the conveyance path. .

ノズル4は昇華物、たとえば液体CO2(ドライアイス
)を貯蔵するタンク5にホース(あるいはパイプ)6に
て連通されており、タンク5側にはメインバルブ7が、
ノズル4側にはサブバルブ8が装備される。そしてタン
ク5内の昇華物はメインバルブ7の開度に応じた流量で
ホース6を通しノズル4に送られ、該ノズル4からはサ
ブバルブ8で調整された流量、流速でノズル直下を通過
するフープ材1に高速で吹付けられる。この吹付けによ
り昇華物粒子Aの衝突エネルギー、つまりブラスト作用
で接点片3・・・の表面に付着している有機物質及び無
機物質が吹飛ばされて除去される。
The nozzle 4 is connected via a hose (or pipe) 6 to a tank 5 that stores a sublimate, such as liquid CO2 (dry ice), and a main valve 7 is connected to the tank 5 side.
A sub-valve 8 is installed on the nozzle 4 side. The sublimate in the tank 5 is sent to the nozzle 4 through the hose 6 at a flow rate according to the opening degree of the main valve 7, and from the nozzle 4, a hoop passes directly below the nozzle at a flow rate and flow rate adjusted by the sub-valve 8. Material 1 is sprayed at high speed. By this spraying, the organic and inorganic substances adhering to the surfaces of the contact pieces 3 are blown off and removed by the collision energy of the sublimate particles A, that is, by the blasting action.

当然ながら、ノズル4は前記したツイン接点構造を覆う
ように吹付けるノズル形状とされている。
Naturally, the nozzle 4 is shaped to spray so as to cover the twin contact structure described above.

また、図示していないが、ノズル4の直下にフープ材1
がくる時のみ昇華物粒子吹付けを行うようなフープ材検
出手段を設けてもよい。
Although not shown, a hoop material 1 is placed directly under the nozzle 4.
It is also possible to provide a hoop material detection means that sprays sublimate particles only when the temperature is reached.

第3図は、接点片9・・・が電気機器部材10の表面に
露呈していず、接点端子11が接点片9・・・を内奥に
格納する配置形状と成った成形品部材に対し昇華物粒子
Aを吹付けねばならない時の洗浄処理説明であって、吹
付けられた昇華物粒子Aが接点端子11・・・の間を通
って内奥の接点片9・・・に届くように、一対のノズル
4.4が洗浄処理されるべき電気機器部材10を挾んで
上下に対向装備されている。
FIG. 3 shows a molded product member in which the contact pieces 9 are not exposed on the surface of the electrical equipment member 10 and the contact terminals 11 are arranged so that the contact pieces 9 are stored deep inside. This is an explanation of the cleaning process when it is necessary to spray sublimate particles A, so that the sprayed sublimate particles A pass between the contact terminals 11... and reach the inner contact piece 9... A pair of nozzles 4.4 are disposed vertically facing each other, sandwiching the electrical equipment member 10 to be cleaned.

尚、第3図ではそれぞれのノズル4.4にサブパルプ8
.8が装備され、かつそれぞれのノズル4.4に各別に
ホース6a、6aを介して昇華物粒子が供給されること
は勿論である。
In addition, in Fig. 3, each nozzle 4.4 is filled with sub-pulp 8.
.. 8, and each nozzle 4.4 is of course supplied with sublimate particles via a separate hose 6a, 6a.

この発明方法を第1図の洗浄装置を用いて実験した結果
、第4図及び第5図に示すデータが得られた。
As a result of testing this invention method using the cleaning apparatus shown in FIG. 1, the data shown in FIGS. 4 and 5 were obtained.

即ち、この実験では、機械油をフレオンTFで0.3一
体積パーセント希釈し、これを第2図のフープ材1の接
点片3・・・に塗布してサンプルとし、かつこのフープ
材1から50mm離れた位置におかれたノズル4に対し
30mm/秒で横移動させることを条件とした。
That is, in this experiment, machine oil was diluted by 0.3% by volume with Freon TF, and this was applied to the contact piece 3 of the hoop material 1 shown in Fig. 2 as a sample. The condition was that the nozzle 4 placed at a distance of 50 mm was to be moved laterally at a rate of 30 mm/sec.

上記条件で接点片3・・・の表面にドライアイスを数秒
高速で吹付けて機械油を除去処理し、処理前後の接点表
面の清浄度をオージェ電子分光法によって測定した結果
が第4図及び第5図のスペクトル図である。
Under the above conditions, dry ice was sprayed at high speed on the surface of contact piece 3 for several seconds to remove machine oil, and the cleanliness of the contact surface before and after the treatment was measured by Auger electron spectroscopy. The results are shown in Figure 4 and FIG. 5 is a spectrum diagram of FIG. 5;

処理前の第4図のスペクトル図から明らかなように炭素
Cの存在が確認でき、機械油が接点片3の表面を被覆し
ていることがわかる。
As is clear from the spectrum diagram in FIG. 4 before treatment, the presence of carbon C can be confirmed, and it can be seen that the surface of the contact piece 3 is coated with machine oil.

一方、処理後の第5図のスペクトル図からは金Au、銀
Agの存在が確認できると共に、炭素Cが減少している
ことが把握できる。これは洗浄処理により接点片3の表
面を被覆していた機械油が消失し、接点片3自体の表面
が露出したことを意味し、この発明の清浄効果の大きさ
が立証されている。
On the other hand, from the spectrum diagram shown in FIG. 5 after the treatment, the presence of gold Au and silver Ag can be confirmed, and it can also be understood that carbon C has decreased. This means that the machine oil that had covered the surface of the contact piece 3 disappeared through the cleaning process, and the surface of the contact piece 3 itself was exposed, proving the great cleaning effect of the present invention.

第6図は樹脂成形品型の電気機器部材12に対しこの発
明方法を用いてパリ取り、成形粉の除去を施す場合の実
施例図である。
FIG. 6 is a diagram showing an example in which deburring and molding powder removal are performed on a resin molded electrical equipment member 12 using the method of the present invention.

第6図ではパーツフィーダ13上を樹脂成形品たる電気
機器部材12が洗浄処理を受けるべき面を下にして矢印
方向に搬送される。一方、ノズル4はパーツフィーダ1
3の直下で、該フィーダの間欠部14に臨んで上向きに
装備され、該ノズル4とタンク5とがホース(またはパ
イプ)6で結ばれ、第1図実施例と同様に、かつ同目的
でメインバルブ7とサブパルプ8とが装備される。
In FIG. 6, an electrical equipment member 12, which is a resin molded product, is conveyed on a parts feeder 13 in the direction of the arrow with the side to be cleaned facing down. On the other hand, the nozzle 4 is connected to the parts feeder 1.
3, the nozzle 4 and the tank 5 are connected by a hose (or pipe) 6, and the nozzle 4 and the tank 5 are connected to each other by a hose (or pipe) 6, which is similar to the embodiment shown in FIG. A main valve 7 and a sub pulp 8 are equipped.

ノズル4はその直上位置に樹脂成形品部材12が到来す
るたびに、これに向かって昇華物粒子Aを高速で吹付け
る。樹脂成形品部材12側では昇華物粒子Aのプラスト
作用でパリが折り取られ、かつ飛散除去され、同時に付
着物たる成形粉も飛散除去される。
The nozzle 4 sprays the sublimate particles A toward the resin molded article member 12 at high speed every time the resin molded article member 12 arrives at the position directly above the nozzle 4. On the side of the resin molded product member 12, the particles are broken off and scattered by the plasto action of the sublimate particles A, and at the same time, the molding powder that is the deposit is also scattered and removed.

以上のような清浄方法によれば、表面洗浄、パリ取に用
いる洗浄材がドライアイスのような昇華物粒子であるた
め、吹付は後、この昇華物粒子が常温下でただちにフー
プ材1あるいは樹脂成形品部材12の表面から自然蒸発
し、したがってフープ材1あるいは樹脂成形品部材12
の表面に残らないので、新たな付着物の形成がなく、ま
た、乾燥工程も不用になる。
According to the cleaning method described above, since the cleaning material used for surface cleaning and deburring is sublimate particles such as dry ice, after spraying, the sublimate particles are immediately transferred to the hoop material 1 or resin at room temperature. Natural evaporation occurs from the surface of the molded product member 12, and therefore the hoop material 1 or the resin molded product member 12
Since no residue remains on the surface, no new deposits are formed, and a drying process is also unnecessary.

またこの発明方法を実施する装置は、昇華物タンク5、
ノズル4、バルブ7.8、ホース等だけで済み、充分小
型化できると共に、ベルトコンベヤやパーツフィーダ1
3を用いることで連続処理が可能となる。
Further, the apparatus for carrying out the method of this invention includes a sublimate tank 5,
Only the nozzle 4, valve 7.8, hose, etc. are required, and it can be sufficiently miniaturized, and it can also be installed on a belt conveyor or parts feeder 1.
3 enables continuous processing.

この発明の構成と、上述の実施例との対応において、 この発明の接点片部材は、実施例のフープ材1、電気機
器部材10に対応し、 以下同様に、 接点片は、接点片3,9に対応し、 昇華物粒子を吹付ける手段は、ノズル4に対応し、 樹脂成形品部材は、樹脂成形品部材12に対応し、 昇華物粒子は、昇華物粒子A4こ対応するも、この発明
は上述の実施例の構成のみに限定されるものではない。
In the correspondence between the configuration of the present invention and the above-described embodiments, the contact piece member of the present invention corresponds to the hoop material 1 and the electrical equipment member 10 of the embodiment, and similarly, the contact pieces are the contact piece 3, 9, the means for spraying the sublimate particles corresponds to the nozzle 4, the resin molded product member corresponds to the resin molded product member 12, and the sublimate particles correspond to the sublimate particles A4. The invention is not limited to the configuration of the embodiments described above.

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

図面はこの発明の実施例を示し、 第1図はフープ材の洗浄処理の説明図、第2図はフープ
材の平面図、 第3図は接点片が内奥にある時の洗浄処理の説明図、 第4図はこの発明による処理前の接点表面スペクトル図
、 第5図はこの発明による処理後の接点表面スペクトル図
、 第6図は樹脂成形品部材の洗浄処理の説明図である。 1・・・フープ材     3,9・・・接点片4・・
・ノズル      10・・・電気機器部材第1図 フ−7fff#FJml)E明閏 フープ材f)xF−#1 4・・・ノヌンレ 9・・・長点片 1o・・・電りリ鴬名簿灯ジオ
The drawings show an embodiment of the present invention. Fig. 1 is an explanatory diagram of the cleaning process of the hoop material, Fig. 2 is a plan view of the hoop material, and Fig. 3 is an explanatory diagram of the cleaning process when the contact piece is located deep inside. 4 is a contact surface spectrum diagram before the treatment according to the present invention, FIG. 5 is a contact surface spectrum diagram after the treatment according to the present invention, and FIG. 6 is an explanatory diagram of the cleaning treatment of the resin molded member. 1... Hoop material 3, 9... Contact piece 4...
・Nozzle 10...Electrical equipment parts Figure 1 F-7fff#FJml) E Meijin hoop material f) light geo

Claims (2)

【特許請求の範囲】[Claims] (1)電気機器の接点片部材の表面に昇華物の粒子を高
速度で吹付ける 電気機器部材の清浄方法。
(1) A method of cleaning electrical equipment parts in which sublimate particles are sprayed at high velocity onto the surface of contact piece members of electrical equipment.
(2)電気機器部材を形成する樹脂成形品部材の表面に
昇華物の粒子を高速度で吹付ける 電気機器部材の清浄方法。
(2) A method for cleaning electrical equipment parts, in which sublimate particles are sprayed at high velocity onto the surface of a resin molded part forming the electrical equipment parts.
JP3453089A 1989-02-14 1989-02-14 Cleaning method for electric equipment member Pending JPH02297816A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3453089A JPH02297816A (en) 1989-02-14 1989-02-14 Cleaning method for electric equipment member

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3453089A JPH02297816A (en) 1989-02-14 1989-02-14 Cleaning method for electric equipment member

Publications (1)

Publication Number Publication Date
JPH02297816A true JPH02297816A (en) 1990-12-10

Family

ID=12416829

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3453089A Pending JPH02297816A (en) 1989-02-14 1989-02-14 Cleaning method for electric equipment member

Country Status (1)

Country Link
JP (1) JPH02297816A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07932A (en) * 1993-04-27 1995-01-06 Westinghouse Electric Corp <We> Method and device for cleaning of article surface
JP2016046143A (en) * 2014-08-25 2016-04-04 古河電気工業株式会社 Terminal manufacturing device and method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07932A (en) * 1993-04-27 1995-01-06 Westinghouse Electric Corp <We> Method and device for cleaning of article surface
JP2016046143A (en) * 2014-08-25 2016-04-04 古河電気工業株式会社 Terminal manufacturing device and method

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