JPH02254184A - Method for degreasing surface of metal pipe - Google Patents
Method for degreasing surface of metal pipeInfo
- Publication number
- JPH02254184A JPH02254184A JP7561989A JP7561989A JPH02254184A JP H02254184 A JPH02254184 A JP H02254184A JP 7561989 A JP7561989 A JP 7561989A JP 7561989 A JP7561989 A JP 7561989A JP H02254184 A JPH02254184 A JP H02254184A
- Authority
- JP
- Japan
- Prior art keywords
- degreasing
- pipe
- metal tube
- head
- nozzle
- 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
Links
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 65
- 239000002184 metal Substances 0.000 title claims abstract description 65
- 238000005238 degreasing Methods 0.000 title claims abstract description 62
- 238000000034 method Methods 0.000 title claims description 17
- 239000007788 liquid Substances 0.000 claims description 41
- 238000009415 formwork Methods 0.000 description 6
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 239000010687 lubricating oil Substances 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- UOCLXMDMGBRAIB-UHFFFAOYSA-N 1,1,1-trichloroethane Chemical compound CC(Cl)(Cl)Cl UOCLXMDMGBRAIB-UHFFFAOYSA-N 0.000 description 3
- 239000004809 Teflon Substances 0.000 description 3
- 229920006362 Teflon® Polymers 0.000 description 3
- 239000013527 degreasing agent Substances 0.000 description 3
- 238000005237 degreasing agent Methods 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 238000005253 cladding Methods 0.000 description 2
- 238000010622 cold drawing Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- WSLDOOZREJYCGB-UHFFFAOYSA-N 1,2-Dichloroethane Chemical compound ClCCCl WSLDOOZREJYCGB-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- 229910001093 Zr alloy Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003758 nuclear fuel Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Landscapes
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は長尺で内径が小さく、しかも肉厚の薄い金属管
に好適な表面脱脂方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a surface degreasing method suitable for long metal tubes with small inner diameters and thin walls.
〔従来の技術］
製管工程における冷間抽伸等においては、その加工で使
用された潤滑油を除去するために、加工後に金属管表面
の脱脂が行われる。この脱脂作業では従来は、まず手作
業で金属管内面の油分を除去した後、さらに金属管全体
を有機溶剤や塩基性脱脂剤（以下、脱脂液と言う）に一
定の時間浸漬して油分を除去するという２段階の方法が
取られていた。[Prior Art] In cold drawing and the like in the pipe manufacturing process, the surface of the metal tube is degreased after the processing in order to remove the lubricating oil used in the processing. Conventionally, in this degreasing process, the oil content on the inner surface of the metal pipe is first removed manually, and then the entire metal pipe is immersed in an organic solvent or basic degreasing agent (hereinafter referred to as degreasing liquid) for a certain period of time to remove the oil content. A two-step method of removal was used.
これは、金属管全体を脱脂液に浸漬しただけでは管内面
の油分が十分に除去されないからである。This is because the oil content on the inner surface of the tube cannot be sufficiently removed just by immersing the entire metal tube in the degreasing liquid.
しかるに、このような手作業を含む脱脂方法は、多大な
作業工数を必要とするため、経済的な面で効率のよい方
法であるとは言えない。However, such a degreasing method that involves manual labor requires a large number of man-hours, and therefore cannot be said to be an economically efficient method.
そこで、脱脂液槽に浸漬された金属管の一方の端部から
金属管の内部に脱脂液を圧入し、その脱脂液が金属管の
他方の端部から排出される時の脱脂液の流動により金属
管内面も同時に効率よく脱脂する方法が一部では試のら
れている。Therefore, degreasing liquid is forced into the metal tube from one end of the metal tube immersed in the degreasing liquid tank, and when the degreasing liquid is discharged from the other end of the metal tube, the flow of the degreasing liquid causes Some attempts are being made to efficiently degrease the inner surface of metal pipes at the same time.
（発明が解決しようとする課題］
この方法では、脱脂液槽に浸漬された金属管の一方の端
部から、ポンプによって加圧された脱脂液が噴流として
強制的に注入されるために、槽内に金属管を固定するこ
とが必要になる。特に、原子力発電設備の核燃料被覆管
用に用いられるジルカロイ管、ステンレス鋼管では長さ
が数ｍに達するのに重さは１００〜２００ｇ程度しかな
く、槽内に浸漬するだけでは脱脂液の噴流によって簡単
に吹き飛んでしまうので、金属管のり１面を適正な圧力
で締め付けて金属管を槽内に固定する機構が重要になる
。(Problems to be Solved by the Invention) In this method, degreasing liquid pressurized by a pump is forcibly injected as a jet from one end of a metal pipe immersed in a degreasing liquid tank. In particular, Zircaloy tubes and stainless steel tubes used for nuclear fuel cladding tubes in nuclear power generation equipment are several meters long but weigh only about 100 to 200 g. If the metal tube is simply immersed in the tank, it will be easily blown away by the jet of degreasing liquid, so a mechanism for fixing the metal tube in the tank by tightening one side of the metal tube with appropriate pressure is important.
ところが、このような要求を満足するチャ、りは、機構
が複雑であり、装置規模が大掛かりなものになるだけで
なく、金属管を着脱する際ｔこ丁７間がかかり、作業能
率を低下さ一ロる。特に上述した被覆管用の管の如き長
尺小径薄肉金属管では金属管を締め伺ける圧力が過大で
あると金属管は塑性変形する危険があり、締め付ける圧
力が弱いと金属管を１−分に把持できずに、脱脂液の圧
力によりチャ・ツクから抜は出る。したがって、適正な
圧力で金属管を締め付けな（ではならず、作業性は著し
く低下する。However, the mechanism that satisfies these requirements is not only complex and large-scale, but also takes 7 hours to attach and detach the metal tube, reducing work efficiency. Saichiroru. In particular, with long, small-diameter, thin-walled metal tubes such as those for cladding tubes mentioned above, if the pressure applied to tighten the metal tube is too high, there is a risk that the metal tube will undergo plastic deformation. Unable to grasp it, it comes out of the chuck due to the pressure of the degreasing liquid. Therefore, the metal tube must be tightened to the appropriate pressure (it must not be done, and work efficiency will be significantly reduced).
そし２て何よりも、金属管の外面をチャックで把持した
場合には、その外面部分で脱脂液の接触が断たれ、脱脂
むらを生じる。Second, above all, when the outer surface of the metal tube is gripped with a chuck, contact with the degreasing liquid is cut off at that outer surface portion, resulting in uneven degreasing.
本発明は、これらの問題点を全て解決するもので、簡単
な機構で長尺小径薄肉金属管の場合にも槽内に簡単に固
定し得、しかもその内外面をむらなく効率的に脱脂でき
る脱脂方法を提供することを目的とする。The present invention solves all of these problems, and uses a simple mechanism to easily fix long, small-diameter, thin-walled metal tubes in the tank, and to degrease the inner and outer surfaces evenly and efficiently. The purpose is to provide a degreasing method.
本発明の脱脂方法は、脱脂液中に浸漬された金属管の−
・方の端部に外嵌するノズル−・ノドを介して管内の脱
脂液をノズルへ、ト側に吸引流動させることを特徴とし
てなる。The degreasing method of the present invention is characterized in that a metal tube immersed in a degreasing solution is
The feature is that the degreasing liquid inside the tube is sucked into the nozzle through a nozzle fitted on the outer end of the pipe and flows toward the other end.
金属管の一端から管内の脱脂液を吸引すると、管内が脱
脂液流動によって強制的に脱脂されると共に、その吸引
によって金属管の一端がノズルへ・７トに吸着固定され
る。したがって、外面クランプ機構は不必要になり、外
面クランプ機構なしでも金属管は液中に確実に固定され
る。その結果、金属管の脱着作業も簡単になり、且つ外
面に脱脂むらを生じるのが防止される。また、吸引にと
もなう管外の脱脂液流動により管外面ば効果的に脱脂さ
れる。When the degreasing liquid inside the tube is suctioned from one end of the metal tube, the inside of the tube is forcibly degreased by the flow of the degreasing liquid, and the one end of the metal tube is suctioned and fixed to the nozzle by the suction. Therefore, an external clamping mechanism is not required, and the metal tube is securely fixed in the liquid even without the external clamping mechanism. As a result, the work of attaching and detaching the metal tube becomes easier, and uneven degreasing on the outer surface is prevented. Furthermore, the outer surface of the tube is effectively degreased by the flow of the degreasing liquid outside the tube as a result of suction.
本発明の脱脂方法には、第１図に示すように脱脂液６を
満たした脱脂液槽１と、金属管７を吸上固定するための
ノズルヘッド２と、金属管７をノズルヘッド２とともに
収容するバレット３と、バレンｌ−３内に金属管７とと
もに積層される輪木４と、ノズルヘッド２に接続される
ポンプ５とが使用される。As shown in FIG. 1, the degreasing method of the present invention includes a degreasing liquid tank 1 filled with a degreasing liquid 6, a nozzle head 2 for suctioning and fixing the metal tube 7, and the metal tube 7 together with the nozzle head 2. A housing bullet 3, a hoop 4 stacked together with a metal tube 7 inside the barrel l-3, and a pump 5 connected to the nozzle head 2 are used.
脱脂液槽１は、トリクロルエタンやエチレンクロライｌ
”のような有機溶剤やケイ酸ナトリウム水溶液のような
塩基性脱脂剤からなる脱脂液６を満たした槽で、脱脂液
６に対して耐食性のある材料で製作されている。The degreasing liquid tank 1 contains trichloroethane and ethylene chloride.
This is a tank filled with a degreasing liquid 6 made of an organic solvent such as ``10'' or a basic degreasing agent such as an aqueous sodium silicate solution, and is made of a material that is resistant to corrosion by the degreasing liquid 6.
ノズルヘン１２は、第２図および第３図に示すように、
テフロン樹脂製の直方体ブロックからなるヘッド本体８
を備えている。ヘッド本体８には、その長手方向に延在
する１本の本孔１０と、それに直交する８本の枝孔１１
とが設けられており、各枝孔１１の中心間隔は一定であ
る。本孔ｌＯと枝孔１１とは互いに連通し、本孔１０の
一端は閉塞しているが、他端は開放してホースジヨイン
ト１２に接続されている。枝孔１１はヘッド本体８の正
面側に開口し、その間Ｌ］部よりテフロン樹脂製のシー
ルリング１３が挿入されており、その内周面は開口側に
向かって順次拡径したテーバ周面になっている。As shown in FIGS. 2 and 3, the nozzle head 12 has a
Head body 8 consisting of a rectangular parallelepiped block made of Teflon resin
It is equipped with The head body 8 has one main hole 10 extending in the longitudinal direction and eight branch holes 11 perpendicular to the main hole 10.
are provided, and the center spacing of each branch hole 11 is constant. The main hole IO and the branch hole 11 communicate with each other, and one end of the main hole 10 is closed, but the other end is open and connected to the hose joint 12. The branch hole 11 opens on the front side of the head body 8, and a seal ring 13 made of Teflon resin is inserted from the L part between the holes, and the inner circumferential surface thereof is connected to the tapered circumferential surface whose diameter gradually increases toward the opening side. It has become.
ヘッド本体８の正面にはテフロン樹脂からなる直方形状
の押え板９がねし２１により接合されている。押え板９
は枝孔１１の開Ｌ］部に対応して開設された８個の透孔
を有している。押え板９の各透孔は、ヘッド本体８の枝
孔１１より僅かに小さく、これによりシールリング１３
は押え十反９によりヘッド本体８内部に保持される。金
属管７は、その一端が押え板９の側からシールリング■
３のテーバ周面内に挿入される。A rectangular pressing plate 9 made of Teflon resin is bonded to the front surface of the head body 8 with screws 21. Presser plate 9
has eight through holes opened corresponding to the opening L of the branch hole 11. Each through hole in the holding plate 9 is slightly smaller than the branch hole 11 in the head body 8, so that the seal ring 13
is held inside the head body 8 by a presser foot 9. The metal tube 7 has one end attached to the seal ring ■ from the presser plate 9 side.
It is inserted into the circumferential surface of the taper of No. 3.
バレン（・３は、第４図に示すように、耐酸性に優れた
ステンレス網等から成り、パレット３を移動させるため
の吊具１６が四方に設けられた底枠Ｉ４と、底枠１４の
内周面に溶接されて直立しているヘンド用溝型枠１５Ａ
および輪木用溝型枠１５Ｂとを備えている。As shown in Fig. 4, the baren (3) is made of stainless steel mesh with excellent acid resistance, and includes a bottom frame I4 with hangers 16 on all sides for moving the pallet 3, and a bottom frame I4. Groove formwork 15A for hend which is welded to the inner peripheral surface and stands upright
and a ring groove formwork 15B.
ヘン１゛用溝型枠１５Ａは、ノズルへノド２を収納する
ためのもので、バＩ・ノ１−３の前方に位置し、ノズル
ヘット２を収納し得る平面形状を有している。該−・ノ
ド用溝型枠１５Ａの高さは、ノズルへ７ト２を所定段積
み重ねて更にその上からノズルへ、］・押え１７をイ、
ジ止めできる高さになっており、その側面の長穴１８は
、ノズルヘット２のホスジョイン］・１２を露出させる
だめのものである。The groove formwork 15A for the hem 1 is for storing the nozzle 2 in the nozzle, is located in front of the nozzle 1-3, and has a planar shape that can accommodate the nozzle head 2. - The height of the groove formwork 15A for the gutter is such that 7 pieces 2 are stacked in a predetermined level on the nozzle and then transferred from above to the nozzle.] - The presser foot 17 is
The height is such that it can be screwed in place, and the elongated hole 18 on its side is for exposing the phosphor joint 12 of the nozzle head 2.
輪木４を収納するための輪木用溝型枠１５Ｂはへノド用
溝型枠１５Ａの後方に等間隔で設けられており、所定段
数の輪木４を収納し得る平面形状および高ざをイ４して
いる。The ring groove forms 15B for storing the wheel rings 4 are provided at equal intervals behind the henode groove form 15A, and have a planar shape and height that can accommodate a predetermined number of stages of wheel rings 4. i4.
木製の輪木４は、第２図で示すように、金属管７を保持
安定させるために用いられ、上部輪木４Ａおよび下部輪
木４Ｂからなる。両者を組み合わせた状態でその長手方
向に８箇所の金属管７の挿通孔が等間隔で形成される。As shown in FIG. 2, the wooden hoop 4 is used to hold and stabilize the metal tube 7, and consists of an upper hoop 4A and a lower hoop 4B. When the two are combined, eight insertion holes for the metal tubes 7 are formed at equal intervals in the longitudinal direction.
挿通孔の直径は、金属管７の外径よりも大きく、輪木４
と金属管７との間を脱脂′ａ、６が自由に流通するよう
になっている。The diameter of the insertion hole is larger than the outer diameter of the metal tube 7, and the diameter of the insertion hole is larger than the outer diameter of the metal tube 7.
The degreasing agent 'a, 6 is allowed to freely flow between the metal pipe 7 and the metal tube 7.
ポンプ５は、第１図に示すように、脱脂液６を吸引する
ための装置で、その吸引側は、フレキシブルチューブか
らなる吸引管１９を介してノズルへ７１・２のホースジ
ヨイント１２に接続され、その排出側は同しくフレキツ
ブルナ１．−ブからなる排出管２０を介して脱脂液槽１
に接続されている。As shown in FIG. 1, the pump 5 is a device for suctioning the degreasing liquid 6, and its suction side is connected to a hose joint 12 of 71.2 to a nozzle via a suction pipe 19 made of a flexible tube. The discharge side is also a flexible burner 1. - Degreasing liquid tank 1 through a discharge pipe 20 consisting of a
It is connected to the.
本発明の脱脂方法におｉ、Ｊる作業手順は、以下のとお
りである。The working procedures for the degreasing method of the present invention are as follows.
バレント３のヘンｌ用溝型枠１５Ａ内にノズルヘノＦ’
２を上下に所定段積み重ねる。ノズルへラド２の積み
重ねが終了すると、ヘッド用溝型枠１５Ａ内に上方より
ノズルヘット押え１７を嵌め込め、これをヘット用溝型
枠１５Ａにネジ止めする。Nozzle hem F' in the groove formwork 15A for hem L of Valent 3.
2 are stacked vertically in predetermined stages. When the stacking of the rads 2 onto the nozzle is completed, the nozzle head presser 17 is fitted into the head groove form 15A from above and screwed into the head groove form 15A.
ノズルヘット押え１７がヘッド用溝型枠１５Ａにネジ止
めされることにより、ヘット用溝型枠１５Ａ内乙こノズ
ルヘット２が固定される。この状態でヘット用溝型枠１
５Ａの側面に開設された長穴１８からは、ノズルヘット
２に接続されたホースジヨイント１２が外部に露出する
。そして、ノズルへ、１−２個面のホースジヨイント１
２には吸引管１９を介してポンプ５の吸引口を接続し、
一方、ポンプ５の吐出口は排出管２０を介して脱脂液槽
１に接続される。By screwing the nozzle head holder 17 to the head groove form 15A, the nozzle head 2 is fixed within the head groove form 15A. In this state, head groove formwork 1
A hose joint 12 connected to the nozzle head 2 is exposed to the outside through an elongated hole 18 formed on the side surface of 5A. Then, connect 1-2 hose joints 1 to the nozzle.
2 is connected to the suction port of the pump 5 via the suction pipe 19,
On the other hand, a discharge port of the pump 5 is connected to the degreasing liquid tank 1 via a discharge pipe 20.
以−１−の準備が終了すると、バレット３の中央部に等
間隔に４ｆんだ３個の輪木用溝型枠１５Ｂ内に下部輪木
４Ｂを敷く。次に、下部輪木４Ｂで金属管７を保持しな
がら、その−・端部をノズルヘット２内のシールリング
１３内に差し込む。同様の手順で更に７本の金属管７を
下部輪木４Ｂ上に載せてノズルヘッド２との接続を終え
た後、下部輪木４Ｂ上に上部輪木４Ａを重ね、更にその
」−に下部軸木４Ｂを積め重ねる。そして、２段目に８
木の金属管７をセ、トシ、上記手順を繰り返して、バレ
ント３内に所定段数の金属管７を輪木４Ａ、４Ｂを挟み
ながら積め重ねる。When the preparations in -1- are completed, the lower hoops 4B are laid in the three hoop groove forms 15B spaced equally apart by 4f in the center of the bullet 3. Next, while holding the metal tube 7 with the lower ring 4B, insert its negative end into the seal ring 13 in the nozzle head 2. Following the same procedure, seven more metal tubes 7 are placed on the lower ring 4B and the connection with the nozzle head 2 is completed, then the upper ring 4A is stacked on the lower ring 4B, and then the lower Stack the shaft wood 4B. And 8 in the second row
The wooden metal tubes 7 are stacked one on top of the other, and the above steps are repeated to stack the metal tubes 7 in a predetermined number of stages in the balent 3 with the hoops 4A and 4B sandwiched between them.
金属管７の積の重ねが終了すると、バレット３の四方に
設けられている吊具１６にフックを掛けて、バレット３
をクレーン等で脱脂液槽１内に浸漬する。When the stacking of the metal tubes 7 is completed, hooks are hung on the hanging tools 16 provided on all sides of the bullet 3, and the bullet 3 is
is immersed in the degreasing liquid tank 1 using a crane or the like.
脱脂７夜槽ｌ内乙こパレノＩ・３が浸漬されると、ポン
プ５を始動する。これによって、各金属管７内の脱脂液
６が、ノズルヘット２の枝孔１１内に吸引され、ノズル
へ７１・２の本孔１０で合流して、ノスルヘノｌ’２外
へ排出される。これに伴って金属管７の他端からは脱脂
液が管内に供給される。When Otsuko Pareno I-3 in the degreasing tank 1 is immersed, the pump 5 is started. As a result, the degreasing liquid 6 in each metal tube 7 is sucked into the branch hole 11 of the nozzle head 2, joins the nozzle at the main hole 10 of 71.2, and is discharged to the outside of the nozzle head 1'2. Along with this, degreasing liquid is supplied from the other end of the metal tube 7 into the tube.
ノズルヘッド２、吸引管１９を通してポンプ５の吸引側
に吸引された脱脂液６は、排出管２０を介して脱脂液槽
１に還流する。このような液循環にともなって管外面側
でも脱脂液６が流動する。かくして、金属管７はその外
面および内面が効果的に脱脂される。The degreasing liquid 6 sucked into the suction side of the pump 5 through the nozzle head 2 and the suction pipe 19 flows back into the degreasing liquid tank 1 via the discharge pipe 20. With such liquid circulation, the degreasing liquid 6 also flows on the outer surface of the tube. In this way, the outer and inner surfaces of the metal tube 7 are effectively degreased.
而して、ポンプ５の始動によって脱脂液６の吸引が始ま
ると脱脂液６と共に金属管７もノズルヘノ１”２内部に
向かって吸引される。金属管７の端部が挿入されている
シールリング１３ば、その挿入部内周面が金属管７の吸
引される方向に向かってテーパ状に縮径しているので、
ポンプ５による脱脂液６の吸引が始まると、金属管７の
一端はノズルヘット２の内部の枝孔１１に挿入されたシ
ルリング１３のテーバ内周面に密着してノズルヘット２
に固定される。かくして金属管７は、その外周面をクラ
ンプＵ７なくても脱脂液槽１内で固定される。When the pump 5 is started and suction of the degreasing liquid 6 begins, the metal tube 7 is also sucked together with the degreasing liquid 6 toward the inside of the nozzle hem 1''2.The end of the metal tube 7 is inserted into the seal ring. 13, since the inner circumferential surface of the insertion portion is tapered in diameter toward the direction in which the metal tube 7 is sucked,
When the pump 5 starts suctioning the degreasing liquid 6, one end of the metal tube 7 comes into close contact with the tapered inner peripheral surface of the sill ring 13 inserted into the branch hole 11 inside the nozzle head 2.
Fixed. In this way, the metal tube 7 is fixed in the degreasing liquid tank 1 even without the clamp U7 on its outer peripheral surface.
脱脂が終了するとポンプ５を停止し７、バレン１３を脱
脂？Ｐ！、槽１外−・引き上げ、シールリング１３に密
着した金属管７をノズルヘッド２から引き抜く。金属管
７をテーバ内周面で保持すれば、脱脂液６の吸引力が金
属管７の固定に効果的に利用され、内径が小さく肉厚の
薄い長尺管でも確実な保持が可能になる。また管径変化
にも対応でき、透孔の直径の異なったシールリング１３
を用意しておけば、−層広い範囲で管径変化に対応でき
る。When degreasing is completed, stop pump 5 and degrease valve 13? P! , outside the tank 1 - Pull up and pull out the metal tube 7 that is in close contact with the seal ring 13 from the nozzle head 2. If the metal tube 7 is held on the inner peripheral surface of Taber, the suction force of the degreasing liquid 6 is effectively used to fix the metal tube 7, and even a long tube with a small inner diameter and thin wall can be held securely. . In addition, it can accommodate changes in pipe diameter, and the seal ring 13 has different through-hole diameters.
By preparing the following, it is possible to accommodate changes in pipe diameter over a wide range of layers.
冷間抽伸用潤滑油が付着しまた外径６．５ ｍｍ、肉厚
０．５＋＋＋ｍ、内径５．５ｍ３長さ３０００ｍｍの、
Ｊ ｌ ５ＳＵＳ３１６製の金属管８０本を８列１０段
でバレンＩ・−トに乗セて上記方法によりトリクロルエ
タン中に１５分間浸漬した。ポンプによる脱脂液の吸引
量は管１本当り２ｆｆ／ｍｉｎとした。トリクロルエタ
ンから引きセげた金属管の脱脂の程度は外面、内面共に
良好であった。ちなみＧこ、［・リクＩコルエタンの静
止液中に１５分間浸漬したたりの金属管では、外面、内
面に手作業で除去する必要があるほどの潤滑油が（”Ｊ
ｒｉしていた。It is coated with cold drawing lubricating oil and has an outer diameter of 6.5 mm, a wall thickness of 0.5+++ m, an inner diameter of 5.5 m, and a length of 3000 mm.
80 metal tubes made of J15SUS316 were mounted on a ballet in 8 rows and 10 stages and immersed in trichloroethane for 15 minutes according to the above method. The amount of degreasing liquid sucked by the pump was 2 ff/min per tube. The degree of degreasing of the metal tube removed from trichloroethane was good on both the outer and inner surfaces. By the way, [・RikuI] A metal tube that has been immersed in a stationary solution of Corethane for 15 minutes has so much lubricating oil on its outer and inner surfaces that it must be removed manually ("J
I was ri.
なお、シールリングのテーパ内周面と接する金属管の管
端外縁部では、潤滑油が残る危険性があるが、この程度
の油付着は手作業でも簡単に除去できるし、管端部が最
終的に切除される場合は放置しておいてもよい。Note that there is a risk that lubricating oil may remain on the outer edge of the metal tube end, which is in contact with the tapered inner circumferential surface of the seal ring, but this amount of oil can be easily removed by hand, and the final If it is to be removed, it may be left alone.
〔発明の効果］
本発明の脱脂方法は、ノズルへ／ｌに対する金属管の着
脱が節中で、しかもそのノズルへ７Ｆ（７）利用により
長尺で内径が小さく肉厚の薄い金属管でも外面クランプ
なし７に確実とこ固定でき、金属管の内外面を能率よく
効果的に脱脂することができろ。[Effects of the Invention] The degreasing method of the present invention allows the attachment and detachment of the metal tube to/l from the nozzle to be performed at the same time, and by using 7F (7) for the nozzle, even a long metal tube with a small inner diameter and a thin wall can be easily removed from the outer surface. It can be securely fixed to the clampless 7, and the inner and outer surfaces of the metal pipe can be efficiently and effectively degreased.
第１図は本発明の脱脂方法に用いる装置を模式的に表わ
した断面図、第２図および第４図はその分解斜視図、第
３し］は第２図に示したノズルへ・７ＦのＸ−Ｙ線断面
矢視図である。
図中、１：脱脂液槽、２：ノズルヘッド、３；ノぐレッ
ト、４：輪木、５；ポンプ、６：脱脂液、７：金属管。Fig. 1 is a cross-sectional view schematically showing the device used in the degreasing method of the present invention, Figs. 2 and 4 are exploded perspective views thereof, and Fig. 3 shows the nozzle 7F shown in Fig. 2. It is a cross-sectional view taken along the X-Y line. In the figure, 1: degreasing liquid tank, 2: nozzle head, 3: noglet, 4: wheel, 5: pump, 6: degreasing liquid, 7: metal tube.
Claims (1)
るノズルヘッドを介して管内の脱脂液をノズルヘッド側
へ吸引流動させることを特徴とする金属管表面の脱脂方
法。1. A method for degreasing the surface of a metal tube, which comprises sucking and flowing the degreasing liquid inside the tube toward the nozzle head through a nozzle head that fits over one end of the metal tube immersed in the degreasing liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7561989A JPH02254184A (en) | 1989-03-27 | 1989-03-27 | Method for degreasing surface of metal pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7561989A JPH02254184A (en) | 1989-03-27 | 1989-03-27 | Method for degreasing surface of metal pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02254184A true JPH02254184A (en) | 1990-10-12 |
Family
ID=13581408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7561989A Pending JPH02254184A (en) | 1989-03-27 | 1989-03-27 | Method for degreasing surface of metal pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02254184A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5921256A (en) * | 1997-04-14 | 1999-07-13 | Charles J. DePaolo | Apparatus and method for cleaning elongated hollow instruments |
| CN103614737A (en) * | 2013-10-29 | 2014-03-05 | 南京南车浦镇城轨车辆有限责任公司 | Degreasing method suitable for phosphorized and rust preventative oil-coated carbon steel tubes |
| CN112536273A (en) * | 2020-11-19 | 2021-03-23 | 贵溪市正鑫铜业有限公司 | Copper product surface degreasing equipment |
-
1989
- 1989-03-27 JP JP7561989A patent/JPH02254184A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5921256A (en) * | 1997-04-14 | 1999-07-13 | Charles J. DePaolo | Apparatus and method for cleaning elongated hollow instruments |
| CN103614737A (en) * | 2013-10-29 | 2014-03-05 | 南京南车浦镇城轨车辆有限责任公司 | Degreasing method suitable for phosphorized and rust preventative oil-coated carbon steel tubes |
| CN112536273A (en) * | 2020-11-19 | 2021-03-23 | 贵溪市正鑫铜业有限公司 | Copper product surface degreasing equipment |
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