JPS5839796A - Hard anodizing method for inside surface of pipe - Google Patents
Hard anodizing method for inside surface of pipeInfo
- Publication number
- JPS5839796A JPS5839796A JP13891481A JP13891481A JPS5839796A JP S5839796 A JPS5839796 A JP S5839796A JP 13891481 A JP13891481 A JP 13891481A JP 13891481 A JP13891481 A JP 13891481A JP S5839796 A JPS5839796 A JP S5839796A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- pipes
- electrolyte
- tank
- inside surfaces
- 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
Landscapes
- Electrochemical Coating By Surface Reaction (AREA)
Abstract
Description
【発明の詳細な説明】
本発明はアルミニウム合金製パイプの内面へ硬質の陽極
酸化皮膜層を均一の厚みで形成せしめるための硬質陽極
酸化処理法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a hard anodic oxidation treatment method for forming a hard anodic oxide film layer of uniform thickness on the inner surface of an aluminum alloy pipe.
従来においては此種の陽極酸化処理の場合、陽極酸化処
理中に発生した電解熱を除去する方法としては、陽極酸
化処理用電解液を陽極酸化処理槽外に導いて冷却した後
、再び該処理槽内へ流入するように循環流動せしめるか
、或は処理槽内へ空気を吹き込んで電解液を撹拌する等
の方法が採られていたが、いずれの場合も処理せんとす
るパイプの内面においては、発生した電解熱が十分に除
去されないために介在する電解液温度が略23〜25°
Cとなり、所望する温度略10°Cには保持し得ず、結
果として硬質の、且均一の厚みの陽極酸化皮膜層をパイ
プ内面に対して形成せしめることにおいては満足が得ら
れぬことであった。Conventionally, in the case of this type of anodizing treatment, the method of removing the electrolytic heat generated during the anodizing treatment was to lead the electrolytic solution for anodizing treatment outside the anodizing treatment tank, cool it, and then restart the anodizing treatment. Methods such as circulating the electrolyte so that it flows into the tank or stirring the electrolyte by blowing air into the treatment tank have been adopted, but in either case, the inner surface of the pipe to be treated is , because the generated electrolytic heat is not removed sufficiently, the temperature of the electrolytic solution is approximately 23 to 25 degrees.
C, it was not possible to maintain the desired temperature of approximately 10°C, and as a result, it was not satisfactory to form a hard and uniformly thick anodic oxide film layer on the inner surface of the pipe. Ta.
本発明は、かかる従来の欠点を補ってパイプ内面に介在
する電解液温度が前記所望温度に保持されるようになし
て、一般的に得られる陽極酸化皮膜層の硬度(略HV2
00)を遥かに上回った極めて硬質(HV450〜55
0)の、且均一の厚みの陽極酸化皮膜層がパイプ内面に
おいて形成せしめられうようになしたことを特徴とする
ものである。The present invention compensates for such conventional drawbacks and maintains the temperature of the electrolytic solution present on the inner surface of the pipe at the desired temperature, so that the hardness of the generally obtained anodic oxide film layer (approximately HV2
Extremely hard (HV450-55) far exceeding
0), and is characterized in that an anodic oxide film layer of uniform thickness is formed on the inner surface of the pipe.
以下、本発明の一実施例を図面に基いて説明する。Tは
陽極酸化処理槽、Lは該処理槽T内に蓄えた陽極酸化処
理用電解液、Hは処理槽T外に設置した熱交換器である
。また、Wは処理せんとするアルミニウム合金製パイプ
で、電解液L中において複数本を直立並列状に浸漬配置
せしめ、そして極棒Eを各々該パイプWの内面に貫装せ
しめると共に夫々端部を電源(図示せず)に接続する。Hereinafter, one embodiment of the present invention will be described based on the drawings. T is an anodizing treatment tank, L is an anodizing electrolyte stored in the treatment tank T, and H is a heat exchanger installed outside the treatment tank T. Further, W is an aluminum alloy pipe to be treated, and a plurality of pipes are immersed in an electrolytic solution L in an upright parallel arrangement, and pole rods E are respectively inserted into the inner surface of the pipe W, and the ends of each pipe are Connect to power source (not shown).
そして、Pは前記パイプWの直径より積小径のパイプ状
吹出管で、その上部吐出口AをパイプW下端中央に近接
位置せしめて処理槽Tの底部へ直立配設すると共に、そ
の下端流入口Bを前記熱交換器Hの出口0へ連結せしめ
、一方熱交換器Hの入口Iは処理槽T上部に形成した取
出口Cと連結する。なおMは流体ポンプを示す。Further, P is a pipe-shaped blow-off pipe having a diameter smaller than the diameter of the pipe W, and the upper discharge port A thereof is located close to the center of the lower end of the pipe W, and is disposed vertically at the bottom of the processing tank T. B is connected to the outlet 0 of the heat exchanger H, while the inlet I of the heat exchanger H is connected to the outlet C formed at the upper part of the processing tank T. Note that M indicates a fluid pump.
然して、上述した構成によるパイプWに対する一連の陽
極酸化処理施設を稼動せしめると、電解液Lは処理槽T
と熱交換器Hの間を図中矢印で示す方向で循環流動せし
められると共に、その間に処理槽T内で発生した陽極酸
化処理による電解熱で温度上昇を余儀なくせしめられた
電解液Lを冷却して処理槽T内の電解液平均温度をある
所定温度に保持し得ることは公知のことで言うまでもな
い。However, when a series of anodizing treatment facilities for the pipe W having the above-described configuration are operated, the electrolyte L is transferred to the treatment tank T.
and the heat exchanger H in the direction shown by the arrow in the figure, and during this time the electrolytic solution L, which was forced to rise in temperature due to the electrolytic heat generated in the anodizing process in the treatment tank T, is cooled. It goes without saying that it is well known that the average temperature of the electrolyte in the treatment tank T can be maintained at a certain predetermined temperature.
ところで、パイプWと吐出管Pの前述した位置関係から
して、熱交換器Hで冷却された電解液Lは、吐出管Pの
吐出口AからパイプWの下端中央へ直かに吐出されるこ
とは必然的であり、且その後パイプW内面を上方へ向っ
て流動せしめられ、続いてパイプW上端から流出される
のである。そして、その間、パイプWの内面に発生した
電解熱を十二分に除去してパイプW内面に介在する電解
液L温度が常に略所望温度(前述の如く略10°C)に
保持されることが実現するのである。結果としてパイプ
W相面に形成せしめられる陽極酸化皮膜層は前述の如く
HV450〜550の所■硬質のもので、而も均一の厚
みであることが必然的に期待できるのである。By the way, considering the above-mentioned positional relationship between the pipe W and the discharge pipe P, the electrolyte L cooled by the heat exchanger H is directly discharged from the discharge port A of the discharge pipe P to the center of the lower end of the pipe W. This is inevitable, and the liquid then flows upward along the inner surface of the pipe W, and then flows out from the upper end of the pipe W. During that time, the electrolytic heat generated on the inner surface of the pipe W is sufficiently removed so that the temperature of the electrolyte L present on the inner surface of the pipe W is always maintained at approximately the desired temperature (approximately 10° C. as described above). will be realized. As a result, it can be expected that the anodic oxide film layer formed on the phase surface of the pipe W is hard at HV450 to 550 as described above, and has a uniform thickness.
かくの如く、パイプW内面の一側方から他側方へ冷却し
た電解液Lを循環流動せしめることにより、パイプW内
面に介在する電解液L温度を略所望温度に保持し得るこ
とが、本発明の骨子とするところである。As described above, by circulating the cooled electrolyte L from one side of the inner surface of the pipe W to the other, it is possible to maintain the temperature of the electrolyte L present on the inner surface of the pipe W at approximately a desired temperature. This is the gist of the invention.
なお、パイプW内面へ冷却した電解液Lを循環流動せし
める方法においては、上記実施例以外の構成、方法によ
るも本発明の範ちゅうに入ることは勿論のことである。In addition, in the method of circulating and flowing the cooled electrolytic solution L to the inner surface of the pipe W, it goes without saying that configurations and methods other than those of the above-mentioned embodiments fall within the scope of the present invention.
以上の如く、本発明は、アルミニウム合金製パイプ内面
に硬質陽極酸化皮膜層を均一に形成せしめる方法として
は極めて簡単な方法、設備によるもので、誠に当を得た
理想的な処理法と言えよう。As described above, the present invention uses an extremely simple method and equipment to uniformly form a hard anodic oxide film layer on the inner surface of an aluminum alloy pipe, and can be said to be an ideal treatment method. .
図面は本発明の実施例の一部縦断端面を示す説明図であ
る。
L・・陽極酸化処理用電解液、T・・陽極酸化処理槽、
W・・アルミニウム合金製パイプ。
特許出願人 三光アルミ株式会社
代表者 長谷川 哲郎The drawing is an explanatory diagram showing a partially vertical end face of an embodiment of the present invention. L... Electrolyte for anodizing treatment, T... Anodizing treatment tank,
W...Aluminum alloy pipe. Patent applicant: Tetsuro Hasegawa, representative of Sanko Aluminum Co., Ltd.
Claims (1)
を形成せしめる場合、陽極酸化処理槽内に蓄えた陽極酸
化処理用電解液中において、該電解液中へ浸漬した前記
パイプの内面に発生する電解熱を常に除去してパイプ内
面に介在する前記電解液の温度が略所望温度に保持され
るように、前記処理槽外において冷却した電解液を、パ
イプの一側端から他側端へ内面を貫通して循環流動せし
めるようになしたことを特徴とするパイプ内面に対する
硬質陽極酸化処理法。When forming a hard anodic oxide film layer on the inner surface of an aluminum alloy pipe, electrolytic heat generated on the inner surface of the pipe immersed in the anodizing electrolyte stored in the anodizing tank The electrolytic solution cooled outside the treatment tank is passed through the inner surface from one end of the pipe to the other end so that the temperature of the electrolytic solution interposed on the inner surface of the pipe is maintained at approximately the desired temperature by constantly removing the electrolytic solution. A hard anodizing treatment method for the inner surface of a pipe, characterized in that the pipe is made to circulate and flow.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13891481A JPS5839796A (en) | 1981-09-03 | 1981-09-03 | Hard anodizing method for inside surface of pipe |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13891481A JPS5839796A (en) | 1981-09-03 | 1981-09-03 | Hard anodizing method for inside surface of pipe |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5839796A true JPS5839796A (en) | 1983-03-08 |
Family
ID=15233089
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13891481A Pending JPS5839796A (en) | 1981-09-03 | 1981-09-03 | Hard anodizing method for inside surface of pipe |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5839796A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1990227A3 (en) * | 2007-05-07 | 2010-06-02 | Ho Soon Jung | Filler tube assembly for vehicles |
ITMI20091593A1 (en) * | 2009-09-18 | 2011-03-19 | Unical A G S P A | METHOD OF ANODIZING METAL ALLOYS, PARTICULARLY FOR HEAT EXCHANGERS IN ALUMINUM ALLOYS AND SIMILAR FOR CONDENSING BOILERS. |
CN106367790A (en) * | 2016-11-11 | 2017-02-01 | 佛山市三水雄鹰铝表面技术创新中心有限公司 | Oxidation tank aluminum ion and sulfuric acid recovery as well as oxidation liquor corrosion inhibition, cooling and energy saving system |
CN106661755A (en) * | 2014-04-30 | 2017-05-10 | 赛峰直升机发动机 | Device intended for implementing an anodization treatment and anodization treatment |
CN106835229A (en) * | 2017-02-14 | 2017-06-13 | 哈尔滨东安发动机(集团)有限公司 | A kind of tube kind part hard anodized method long |
EP3960908A1 (en) * | 2020-08-27 | 2022-03-02 | Carrier Corporation | Methods of anodizing the internal surface of heat transfer tubes |
-
1981
- 1981-09-03 JP JP13891481A patent/JPS5839796A/en active Pending
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1990227A3 (en) * | 2007-05-07 | 2010-06-02 | Ho Soon Jung | Filler tube assembly for vehicles |
ITMI20091593A1 (en) * | 2009-09-18 | 2011-03-19 | Unical A G S P A | METHOD OF ANODIZING METAL ALLOYS, PARTICULARLY FOR HEAT EXCHANGERS IN ALUMINUM ALLOYS AND SIMILAR FOR CONDENSING BOILERS. |
EP2298967A1 (en) * | 2009-09-18 | 2011-03-23 | UNICAL AG S.p.A. | Method for anodizing metallic alloys, particularly for heat exchangers made of aluminum alloys and the like for condensing boilers |
CN106661755A (en) * | 2014-04-30 | 2017-05-10 | 赛峰直升机发动机 | Device intended for implementing an anodization treatment and anodization treatment |
CN106661755B (en) * | 2014-04-30 | 2019-01-18 | 赛峰直升机发动机 | Device and anode processing for realizing anode processing |
CN106367790A (en) * | 2016-11-11 | 2017-02-01 | 佛山市三水雄鹰铝表面技术创新中心有限公司 | Oxidation tank aluminum ion and sulfuric acid recovery as well as oxidation liquor corrosion inhibition, cooling and energy saving system |
CN106835229A (en) * | 2017-02-14 | 2017-06-13 | 哈尔滨东安发动机(集团)有限公司 | A kind of tube kind part hard anodized method long |
EP3960908A1 (en) * | 2020-08-27 | 2022-03-02 | Carrier Corporation | Methods of anodizing the internal surface of heat transfer tubes |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US6322689B1 (en) | Anodizing method and apparatus for performing the same | |
US2549678A (en) | Method of and apparatus for electroforming metal articles | |
JPS5839796A (en) | Hard anodizing method for inside surface of pipe | |
JP2014009379A (en) | Partial anode oxidation device and anode oxidation treatment method using the same | |
CN106011902A (en) | Pickling tank | |
JP4595830B2 (en) | Anodized processing method and apparatus, and anodized processing system | |
JP2004043873A (en) | Method for surface treatment of aluminum alloy | |
JP2937467B2 (en) | Electropolishing, electrolytic deburring method and apparatus | |
CN211284588U (en) | Composite low-temperature anodic oxidation device | |
KR100382177B1 (en) | Anodizing method and apparatus for performing the same | |
US1866701A (en) | Method and apparatus for recovering silver from fixing solutions | |
JP2010071557A (en) | Heat exchanger for fuel cell and method for manufacturing the same | |
JP2004059936A (en) | Surface treatment apparatus for aluminum alloy | |
JPS59219498A (en) | Electrolytic treatment device | |
JP4071713B2 (en) | Method for anodizing aluminum structure anode body and anodizing apparatus therefor | |
JPH0211680B2 (en) | ||
JPH0632814B2 (en) | Cleaning method for multi-stage flash evaporator | |
JP2004294017A (en) | Manufacturing method of heat exchanger | |
US541146A (en) | blaokman | |
CN211261875U (en) | Spent acid is handled and is used cooler with real-time supervision function | |
JPS5937358B2 (en) | Liquid circulation method for electrolytic treatment equipment | |
JP2523686Y2 (en) | Water-soluble quenching liquid separation and recovery device | |
JPS6333970Y2 (en) | ||
RU2139594C1 (en) | Chemical surface cleaning unit for parts, primarily semiconductor plates | |
JPS61236426A (en) | Electrochemically polishing method and its device for inside metal pipe |