JPS5881978A - Method and apparatus for chromate treatment of zinc plated wire - Google Patents
Method and apparatus for chromate treatment of zinc plated wireInfo
- Publication number
- JPS5881978A JPS5881978A JP17640981A JP17640981A JPS5881978A JP S5881978 A JPS5881978 A JP S5881978A JP 17640981 A JP17640981 A JP 17640981A JP 17640981 A JP17640981 A JP 17640981A JP S5881978 A JPS5881978 A JP S5881978A
- Authority
- JP
- Japan
- Prior art keywords
- chromate
- zinc plated
- treating liquid
- chromate treatment
- tubular body
- 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.)
- Granted
Links
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims description 7
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 title abstract description 7
- 239000011701 zinc Substances 0.000 title abstract description 7
- 229910052725 zinc Inorganic materials 0.000 title abstract description 7
- 239000007788 liquid Substances 0.000 claims abstract description 20
- 239000000243 solution Substances 0.000 description 7
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/73—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals characterised by the process
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Treatment Of Metals (AREA)
Abstract
Description
【発明の詳細な説明】
この発明は亜鉛めっき線のクロメート処理方法及び装置
に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method and apparatus for chromate treatment of galvanized wire.
亜鉛めっきを施した側条の表面に耐変色、耐食のためク
ロメート皮膜を設けることは既に行われており、従来の
クロメート処理はクロメート液の靜＋ａｔ浴中に亜鉛め
っきを施した線条を浸漬することにより行っている。It has already been done to provide a chromate film on the surface of galvanized side strips to prevent discoloration and corrosion. Conventional chromate treatment involves immersing galvanized strips in a chromate solution + AT bath. This is done by doing.
クロメート皮膜は非常に薄いにも拘らず赤錆びには勿論
白色腐食にも強いが、クロメート皮膜と線条の全域表面
との結合は分子凝集力的に成立嘔れるものとされ、クロ
メート処理液の組成、反応時間、特に乾燥温間によって
は比較的容易にクラックが発生することが知られており
、密着性のよいクロメート皮膜を得るのには組成、濃ｇ
１温度、反応時間、乾燥温度が軍費なファクターである
が、処理液の攪拌条件も大きく影響することが知られて
お９、処理品の揺動、バブリング等外力で攪拌すること
等が採用でれている。Although the chromate film is very thin, it is resistant to both red rust and white corrosion, but it is said that the bond between the chromate film and the entire surface of the striations is established by molecular cohesion, and the chromate treatment solution is It is known that cracks occur relatively easily depending on the composition and reaction time, especially the drying temperature, and in order to obtain a chromate film with good adhesion,
1. Temperature, reaction time, and drying temperature are important factors, but it is known that the stirring conditions of the processing liquid also have a large effect9, and stirring by external force such as shaking or bubbling the processed product can be adopted. It is.
出願人は梗々実験の結果、他の条件が一定の場合クロメ
ート処理液が亜鉛めっきされた線条に衝突する流速がク
ロメート皮膜の密着性に関係があると云う知見を得た。As a result of extensive experiments, the applicant has found that, when other conditions are constant, the flow rate at which the chromate treatment solution impinges on the galvanized wire is related to the adhesion of the chromate film.
この発明は、上記知見に基き想到されたもので亜鉛めっ
き線の表面に密着性のよいクロメート皮膜を作ることの
できるクロメート処理方法及び装置を提供するのをその
目的とする。The present invention was conceived based on the above findings, and an object of the present invention is to provide a chromate treatment method and apparatus capable of forming a chromate film with good adhesion on the surface of a galvanized wire.
第１番目の発明に係る亜鉛めっき線のクロメ−４処理方
法を説明するのに先立ち、この方法を実施するのに直接
使用する、第２番目の発明に係る亜鉛めっき線にクロメ
ート処理を施す装置ｔの構成を、図示の一実施例に基づ
いて説明すると、この装置は一端の屈曲部５の上方がク
ロメート処理液注入口１となり、他端がクロメート処理
液の排出口２となっている筒状体３の中央を、他端の該
排出口２側から進入した亜鉛めっき１１Ｍ４が進み、筒
状体３の屈曲部５の壁６を貫いて外部に出るように設け
たものである。なお７，７′は何れも亜鉛めっき線４の
ピンチロール、８．９はクロメート処理液溜め、１０．
１１次に第゛１番目の発明に係る唾鉛めつきのクロメー
ト処理方法を、図示の装［イにより説明すると、亜鉛め
っき線４を、管状体５の中心軸線０−０上を、排出口２
側よりクロメート処理液注入口１側に向って通過させ、
該管状体３の屈曲部５の壁６の孔６′より管状体３外に
出し、ピンチロール７．７／、７．７’で２０〜１００
ｍ／簡の速さの通過速度で通過させ、クロメート液は管
状体３のクロメート処理液注入口１より注入し、亜鉛め
つｉ線４の通過方向と反対方向に流し、排出口２からク
ロメート処理液溜８に排出させるのである。Prior to explaining the chromate-4 treatment method for galvanized wire according to the first invention, an apparatus for applying chromate treatment to galvanized wire according to the second invention, which is directly used to carry out this method. The configuration of t will be explained based on an example shown in the drawings. This device has a cylinder with a chromate treatment liquid inlet 1 above a bent portion 5 at one end and an outlet 2 for the chromate treatment liquid at the other end. The zinc plating 11M4 that entered the center of the body 3 from the outlet 2 side at the other end advances, penetrates the wall 6 of the bent portion 5 of the cylindrical body 3, and exits to the outside. Note that 7 and 7' are pinch rolls for galvanized wire 4, 8.9 is a chromate treatment liquid reservoir, and 10.
11 Next, the chromate treatment method for salivary lead plating according to the first invention will be explained using the illustrated apparatus [A].
Pass it from the side toward the chromate treatment liquid injection port 1 side,
It is taken out of the tubular body 3 through the hole 6' in the wall 6 of the bent part 5 of the tubular body 3, and rolled with pinch rolls 7.7/, 7.7'.
The chromate solution is injected from the chromate treatment solution inlet 1 of the tubular body 3, flowed in the opposite direction to the passing direction of the galvanized I-wire 4, and the chromate solution is passed from the discharge port 2. It is discharged into the processing liquid reservoir 8.
然る時はクロメート、処理液は注入口１の下部の屈曲部
５で早くも乱流となり、亜鉛めっき線４と反対方向に流
上、管状体５内では殆んど乱流のま＼流れ、特に亜鉛め
つき巌４の通過速度を２０〜１００ｍ／ＩＭ＋に取ると
、クロメート皮膜の密着性は下表に示すように極めて高
い。At this time, the chromate and processing liquids already become turbulent at the bend 5 at the bottom of the injection port 1, flowing up in the opposite direction to the galvanized wire 4, and flowing almost turbulently in the tubular body 5. In particular, when the passing speed of the galvanized rock 4 is set to 20 to 100 m/IM+, the adhesion of the chromate film is extremely high as shown in the table below.
なお、１００ｍ／ｒｒＢを超えると、過度の流速で皮膜
の脱落が生じた〇
（浸漬法による密着性１回 浸漬６４１１０ ｍ ／
ｒｎｉｎ ）なお、クロメート処理液の組成は無水クロ
ム酸６〜１８ｆ／ｌ、硝酸４〜１２１／ｌ、 リン酸
（ＬＯ６〜α１８ｆ／ｌ及びその他鉱酸微量で、亜鉛め
づき線４の直径２．０ｍ、送り速度１００ｍ／＋＋＋ｍ
、筒状体５の直径は１５ｍであった。密着性は自己線径
の５倍の径に巻き付け、屈曲部を布でこすり、皮膜が脱
落するまでのこすり回数で測定した。In addition, when the flow rate exceeded 100 m/rrB, the film fell off due to excessive flow velocity.
The composition of the chromate treatment solution is chromic anhydride 6 to 18 f/l, nitric acid 4 to 121/l, phosphoric acid (LO6 to α18 f/l, and trace amounts of other mineral acids), and the diameter of the galvanized wire 4 is 2. 0m, feed speed 100m/+++m
The diameter of the cylindrical body 5 was 15 m. Adhesion was measured by winding the wire around a diameter 5 times the diameter of the wire itself, rubbing the bent part with a cloth, and counting the number of times the film was rubbed until the film fell off.
この発明は斜上のような構成作用を有するから、簡単な
装置により密着性の高いクロメート皮膜をもった亜鉛め
っき線が連続的に容易に得られる。Since the present invention has a sloping structure, a galvanized wire having a highly adhesive chromate film can be easily obtained continuously using a simple device.
図面はこの発明にか＼る亜鉛めっき線のクロメート処理
装置の縦断正面；ゾを示し、１はクロメート処理液注入
口１．２は排出口、３は筒状体、４は亜鉛めっき線、５
は屈曲部を夫々示す・％計量願人 川鉄鋼線工業株式
会社The drawing shows a vertical front view of a chromate treatment apparatus for galvanized wire according to the present invention, where 1 is a chromate treatment liquid inlet 1, 2 is a discharge port, 3 is a cylindrical body, 4 is a galvanized wire, and 5 is a chromate treatment liquid inlet.
% indicates the bent part / % Measurement Applicant Kawatetsu Steel Wire Industry Co., Ltd.
Claims (2)
ート処理液は該亜鉛めっき線の通過方向とは反対方向に
、且つ亜鉛めっき線に対するクロメート処理液の通過速
度は２０〜１００ｍ／Ｆｌｊ１１となるように、前記管
状体を通過させて、亜鉛めっき線の表面にクロメート皮
膜を形成させることを特徴とす亜鉛めっき線のクロメー
ト処理方法。(1) The galvanized wire is concentrated in the center of the tubular body, the chromate treatment liquid is passed in the opposite direction to the direction of passage of the galvanized wire, and the passage speed of the chromate treatment liquid with respect to the galvanized wire is 20 to 100 m/Flj11 A method for chromate treatment of a galvanized wire, characterized in that the galvanized wire is passed through the tubular body to form a chromate film on the surface of the galvanized wire.
１１となり、他端がクロメート処理液の排出口２となっ
ている筒状体３の中央をクロメート処理液の流れ方向と
は逆方向に亜鉛めっき線４を通過できるようにしたこと
を特徴とする亜鉛めっき線にクロメート処理を施す装：
ｔｌ 。(2) The upper part of the bent part 5 at one end becomes the chromate treatment liquid inlet 11, and the other end becomes the chromate treatment liquid discharge port 2. A device for applying chromate treatment to a galvanized wire, which is characterized by being able to pass through the galvanized wire 4:
tl.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17640981A JPS5881978A (en) | 1981-11-05 | 1981-11-05 | Method and apparatus for chromate treatment of zinc plated wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17640981A JPS5881978A (en) | 1981-11-05 | 1981-11-05 | Method and apparatus for chromate treatment of zinc plated wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5881978A true JPS5881978A (en) | 1983-05-17 |
| JPH0141702B2 JPH0141702B2 (en) | 1989-09-07 |
Family
ID=16013167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17640981A Granted JPS5881978A (en) | 1981-11-05 | 1981-11-05 | Method and apparatus for chromate treatment of zinc plated wire |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5881978A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018216475A1 (en) * | 2017-05-22 | 2018-11-29 | 新日鐵住金株式会社 | Oil-well-pipe screw joint and method for manufacturing oil-well-pipe screw joint |
-
1981
- 1981-11-05 JP JP17640981A patent/JPS5881978A/en active Granted
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018216475A1 (en) * | 2017-05-22 | 2018-11-29 | 新日鐵住金株式会社 | Oil-well-pipe screw joint and method for manufacturing oil-well-pipe screw joint |
| CN110741108A (en) * | 2017-05-22 | 2020-01-31 | 日本制铁株式会社 | Threaded joint for oil well pipe and method for manufacturing threaded joint for oil well pipe |
| CN110741108B (en) * | 2017-05-22 | 2021-10-22 | 日本制铁株式会社 | Threaded joint for oil well tubulars and method for manufacturing the threaded joint for oil well tubulars |
| US11408550B2 (en) | 2017-05-22 | 2022-08-09 | Nippon Steel Corporation | Threaded connection for oil country tubular goods and method for producing threaded connection for oil country tubular goods |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0141702B2 (en) | 1989-09-07 |
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