JPH0116914B2 - - Google Patents
Info
- Publication number
- JPH0116914B2 JPH0116914B2 JP19445481A JP19445481A JPH0116914B2 JP H0116914 B2 JPH0116914 B2 JP H0116914B2 JP 19445481 A JP19445481 A JP 19445481A JP 19445481 A JP19445481 A JP 19445481A JP H0116914 B2 JPH0116914 B2 JP H0116914B2
- Authority
- JP
- Japan
- Prior art keywords
- wire
- pickling
- conveyor
- loop
- treatment
- 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
Links
- 238000011282 treatment Methods 0.000 claims description 19
- 239000007788 liquid Substances 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 9
- 238000004381 surface treatment Methods 0.000 claims description 8
- 238000005554 pickling Methods 0.000 description 32
- 238000002347 injection Methods 0.000 description 15
- 239000007924 injection Substances 0.000 description 15
- 238000007747 plating Methods 0.000 description 8
- 239000000243 solution Substances 0.000 description 5
- 238000007796 conventional method Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 3
- 230000035515 penetration Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000005491 wire drawing 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
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G3/00—Apparatus for cleaning or pickling metallic material
- C23G3/02—Apparatus for cleaning or pickling metallic material for cleaning wires, strips, filaments continuously
Description
本発明はループ状にした線材を横置してコンベ
アで搬送しながら、めつき、酸洗等の処理を行う
ループ状線材の表面処理方法に関するものであ
る。
溶接用線材などの線材を非同心の重合リング状
態（ループ状）でコンベア上を搬送しながら、め
つき、酸洗等の表面処理を行う方法はよく知られ
ている。しかし、ループ状線材は密な重合部が存
在するため、その部分に処理液が十分浸透せず、
処理反応が進行しないか、または遅滞して他部分
に比べて処理が不十分になりがちである。その結
果均一な表面処理を行うことができない問題点が
あつた。
このため従来では線材が１つのコンベアから他
のコンベアに移るときにコンベアの速度を変えて
線材の各リングの位置を若干相互にずらせる方
法、又は処理液を循環させ反応速度を調整する方
法などを採用し、線材の重なり部に処理液をゆき
わたらせようとしている。しかしながら、これら
の方法では線材両端の重なり部は処理の間始終ほ
とんど同じ位置、同じ部分であり、酸洗、めつき
前処理、めつきなどの処理においては処理液が重
なり部に十分浸透せず、処理反応が進行しない
か、進行方向前後に比べて処理が不十分になる傾
向がある。特に、酸洗ではスケールが残存し、め
つき処理では不めつきや薄めつき厚などの欠陥が
生じ、線材に錆を発生し易く、さらにめつきむら
によつて色調むらを生じて線材の品質を劣化し、
伸線時にダイスを急速に摩耗し、ダイス荒れを生
じ易い。
さらに従来においてはループ状線材をチエーン
コンベアで搬送しながら処理を行なつているの
で、ループ状線材とチエーンコンベアとの接触部
分は処理の間、同一部分となり、該接触部分が他
の部分に比べて処理されにくい欠点を有してい
る。
本発明はループ状線材の搬送処理方法における
上記のような問題点を解決し、線材の重なりによ
る又線材とコンベアとの接触による処理むらをな
くし均一な表面処理を可能とすると共に、簡便に
実施することができるループ状線材の表面処理方
法を提供することを目的とするものである。
しかして上記目的を達成するための本発明の表
面処理方法は、ループ状にした線材を横置してコ
ンベアで搬送しながら処理液に浸漬させて処理を
行うに際し、線材をローラコンベアで搬送すると
ともに、該ローラコンベアのローラ間隙下方より
線材に噴射流を付与することを特徴とする。
本発明によれば処理液中でループ状線材をロー
ラコンベアにより搬送するので、各ローラ間にお
いてループ状線材とコンベアは非接触となり、処
理の間線材の同一部分がコンベアと接触する従来
方式に比べて均一処理する上で効果的であるし、
さらにローラコンベアのローラ間下方から搬送さ
れるループ状線材に噴射流を当てるため、噴射部
分を順次通過する各線材リングはコンベア上方に
浮き上がり、これによつてリング相互の重なり部
分がほぐれて処理液が全体的に浸透すると共に、
リングの一時的な浮き上がり現象によつて重なり
部がずれることになり均一処理に好都合となる。
以下本発明を実施するための設備例を図面に基
づいて説明する。尚、図示の例は線材酸洗設備を
示しているが、本発明は酸洗以外にめつき、冷却
処理等にも適用し得ることは勿論である。
第１図は酸洗槽の正断面図、第２図は平面図、
第３図は右側断面図であり、図示するように酸洗
槽１は内槽１ａおよび外槽１ｂから構成され、内
槽１ａ内には所望の酸洗液３が充満されている。
該めつき槽１の内槽１ａにはループ状線材搬送用
のローラコンベア２が配設されており、該ローラ
コンベア２の入側および出側は他のコンベアと接
続している。ループ状線材ｗは上記コンベア２に
よつて矢印方向に酸洗液３中を搬送され酸洗処理
される。そしてローラコンベア２の各ローラ間隙
に対応して噴射口４′を配設して噴射用配管４が
コンベア２の下方でかつ線材搬送方向に沿つて設
けられている。該噴射用配管４はポンプ５を介し
て酸洗槽１の内槽１ａと外槽１ｂを連絡する配管
６に接続している。このため、酸洗液３は外槽１
ｂからポンプ５によつて配管６を経て噴射用配管
４に流れ噴射口４′から線材ｗに向けて吐出され
ると共に、内槽１ａからオーバーフローして外槽
１ｂに流下し循環するようになつている。
矢印方向に搬送用ローラコンベア２によつてル
ープ状線材ｗを搬送しながら酸洗槽１内の酸洗液
３中を通過させ、酸洗処理を行わせるにあたり、
ポンプ５により配管６、噴射用配管４を通して噴
射口４′から線材に向つて酸洗液を噴射させる。
噴射口４′位置を通る各線材リングは、下方から
の噴射流によつてコンベア面から上方に浮き上が
ることによつて、隣接リングとの接触が一時的に
なくなり全体にわたつて酸洗液が浸透すると共
に、一時的に浮き上がることによつて前の重なり
部とは異なる位置で重なることから、酸洗液との
接触が不十分であつた個所は新たな酸洗液と接触
するようになる。したがつて、各線材リングは全
体的にほぼ均一に酸洗処理され、酸洗ムラ等の問
題は解消される。
なお酸洗内槽１ａ内におけるループ状線材搬送
用のローラコンベアのローラピツチ（ローラ間
隔）は線材ループ径の１／３〜１／５が適当であ
る。すなわちローラピツチが１／５に満たない
と、線材とコンベアとの接触面積が大になつて効
率よく表面処理を行なえないし、又１／３を超え
ると線材搬送能力が劣る傾向にある。
実施例
溶接用ループ状線材の酸洗処理を第１図に示す
設備（装置）に基づいて下記酸洗条件で行つた場
合、線材の酸洗効果を第１表で示した。なお比較
として同一表に従来法（線材をチエーンコンベア
で搬送した場合）の場合も併せて示した。
〔酸洗条件〕
被酸洗線材 溶接用ループ状鉄鋼線材
線 径 2.4mmφ
ループ径 800mmφ
コンベヤ速度 3.3m／min
ローラ径 80mm
ローラピツチ 200mm
浸漬時間 90sec
酸 洗 液 Hcl16〜20％；60℃
噴射循環液量 800／min
The present invention relates to a method for surface treatment of loop-shaped wire rods, in which the loop-shaped wire rods are placed horizontally and conveyed by a conveyor, and are subjected to treatments such as plating and pickling. A well-known method is to carry out surface treatments such as plating and pickling while conveying wire rods such as welding wire rods on a conveyor in a non-concentric polymerized ring state (loop shape). However, since loop-shaped wire rods have dense polymerized parts, the treatment liquid does not penetrate sufficiently into those parts.
The treatment reaction tends to not proceed or is delayed, resulting in insufficient treatment compared to other parts. As a result, there was a problem that uniform surface treatment could not be performed. For this reason, conventional methods include changing the speed of the conveyor and slightly shifting the positions of the rings of the wire when the wire is transferred from one conveyor to another, or circulating the processing liquid to adjust the reaction speed. The company is trying to spread the treatment liquid to the overlapping parts of the wires. However, in these methods, the overlapping parts at both ends of the wire are in almost the same position and the same part throughout the treatment, and the processing liquid does not sufficiently penetrate into the overlapping parts during treatments such as pickling, pre-plating treatment, and plating. , the treatment reaction tends to not progress or the treatment tends to be insufficient compared to the direction before and after the progress. In particular, scale remains during pickling, and defects such as imperfections and thinning occur during plating, making wire rods prone to rust.Furthermore, uneven plating causes uneven color tone, resulting in poor wire quality. deteriorate,
The die is rapidly worn during wire drawing, and the die is likely to become rough. Furthermore, in the past, the loop-shaped wire was processed while being conveyed by a chain conveyor, so the contact area between the loop-shaped wire and the chain conveyor remained the same during processing, and this contact area was compared to other areas. It has the disadvantage that it is difficult to treat. The present invention solves the above-mentioned problems in the method of conveying loop-shaped wire rods, eliminates uneven processing due to overlapping wire rods or contact between the wire rods and the conveyor, enables uniform surface treatment, and is easy to implement. It is an object of the present invention to provide a method for surface treatment of a loop-shaped wire rod. Therefore, the surface treatment method of the present invention for achieving the above object is to carry out the treatment by immersing a looped wire rod horizontally in a treatment liquid while conveying it on a conveyor, and conveying the wire rod on a roller conveyor. Additionally, a jet stream is applied to the wire from below the roller gap of the roller conveyor. According to the present invention, since the loop-shaped wire rod is conveyed by a roller conveyor in the processing liquid, there is no contact between the loop-shaped wire rod and the conveyor between each roller, compared to the conventional method in which the same part of the wire rod comes into contact with the conveyor during processing. It is effective for uniform processing,
Furthermore, since the jet stream is applied to the loop-shaped wire rod conveyed from below between the rollers of the roller conveyor, each wire rod ring that passes through the jet section one after another floats above the conveyor, thereby loosening the overlapping parts of the rings and causing the processing liquid to flow. As well as permeating throughout the
The temporary lifting of the ring causes the overlapping portion to shift, which is advantageous for uniform processing. Examples of equipment for implementing the present invention will be described below based on the drawings. Although the illustrated example shows wire pickling equipment, it goes without saying that the present invention can be applied to plating, cooling treatment, etc. in addition to pickling. Figure 1 is a front sectional view of the pickling tank, Figure 2 is a plan view,
FIG. 3 is a right sectional view, and as shown, the pickling tank 1 is composed of an inner tank 1a and an outer tank 1b, and the inner tank 1a is filled with a desired pickling liquid 3.
A roller conveyor 2 for conveying the loop-shaped wire is disposed in the inner tank 1a of the plating tank 1, and the inlet and outlet sides of the roller conveyor 2 are connected to other conveyors. The loop-shaped wire w is conveyed in the pickling liquid 3 in the direction of the arrow by the conveyor 2 and is pickled. A jetting port 4' is disposed corresponding to each roller gap of the roller conveyor 2, and a jetting pipe 4 is provided below the conveyor 2 along the wire transport direction. The injection pipe 4 is connected via a pump 5 to a pipe 6 that connects the inner tank 1a and the outer tank 1b of the pickling tank 1. For this reason, the pickling solution 3 is
It flows from b to the injection pipe 4 via the pipe 6 by the pump 5, and is discharged from the injection port 4' toward the wire w, and also overflows from the inner tank 1a and flows down to the outer tank 1b for circulation. ing. When carrying out the pickling treatment by passing the loop-shaped wire w through the pickling liquid 3 in the pickling tank 1 while conveying it in the direction of the arrow by the conveying roller conveyor 2,
The pickling liquid is injected from the injection port 4' toward the wire rod through the piping 6 and the injection piping 4 by the pump 5.
Each wire ring passing through the injection port 4' is lifted upward from the conveyor surface by the jet flow from below, temporarily eliminating contact with the adjacent ring and allowing the pickling solution to permeate throughout. At the same time, by being temporarily lifted up, the parts overlap at a different position from the previous overlapped part, so that the parts that had insufficient contact with the pickling solution come into contact with a new pickling solution. Therefore, each wire ring is generally uniformly pickled throughout, and problems such as uneven pickling are eliminated. The roller pitch (roller spacing) of the roller conveyor for conveying the looped wire in the pickling inner tank 1a is suitably 1/3 to 1/5 of the wire loop diameter. That is, if the roller pitch is less than 1/5, the contact area between the wire and the conveyor becomes large and surface treatment cannot be carried out efficiently, and if it exceeds 1/3, the wire conveying ability tends to be poor. Example When a loop-shaped wire rod for welding was pickled using the equipment (apparatus) shown in FIG. 1 under the following pickling conditions, the pickling effect of the wire rod is shown in Table 1. For comparison, the same table also shows the case of the conventional method (where the wire rod is conveyed by a chain conveyor). [Pickling conditions] Wire to be pickled Loop-shaped steel wire for welding Diameter 2.4mmφ Loop diameter 800mmφ Conveyor speed 3.3m/min Roller diameter 80mm Roller pitch 200mm Immersing time 90sec Pickling liquid Hcl16~20%; 60℃ Amount of injection circulation liquid 800/min
【表】
上記の表から明らかなように従来法では処理が
不完全であるが本発明の方法によつた場合、酸洗
処理のムラは解消され線材の均一処理に非常に効
果を有することがわかる。
上記の具体例においては搬送されるループ状線
材ｗの中央に沿つて噴射口を設けたが、これに限
ることなく噴射口を搬送されるループ状線材の両
端側に設けてもよいし、さらに、ループ状線材ｗ
の進行方向のほぼ中央に噴射口を設けることに加
えて、線材リングの両端側（密な重合部）に対し
ても下方から噴射流を付与することを組合わせて
もよく、より一層処理液の浸透に有効である。又
必ずしも図示のように各ローラ間隙のすべてに対
応して噴射口を設ける必要はなく、いくつかのロ
ーラ間隙ごとに噴射口を設けてもよい。さらにロ
ーラコンベアは図示のように水平に配置すること
に限らず線材搬送可能な範囲で傾斜させてもよ
い。そして噴射流は処理液の噴射によるものに限
らず、線材処理に対して有害でなければエアー噴
射でもよい。
以上説明したように本発明では、線材をローラ
コンベアで搬送するとともに線材下方から線材に
噴射流を付与することによりループ状線材の重な
り部をずらすと共に酸洗液の浸透を計かることが
できるため処理むらを低減し線材品質を大巾に向
上させることができるためその工業的価値は極め
て大である。[Table] As is clear from the above table, the treatment is incomplete in the conventional method, but the method of the present invention eliminates the uneven pickling treatment and is very effective in uniformly treating the wire rod. Recognize. In the above specific example, the injection port was provided along the center of the loop-shaped wire w to be transported, but the injection port is not limited to this, and the injection port may be provided at both ends of the loop-shaped wire to be transported. , loop-shaped wire w
In addition to providing an injection port approximately in the center of the wire ring in the direction of movement, it is also possible to apply a jet flow from below to both ends of the wire ring (densely overlapped areas), thereby making the treatment liquid even more effective. It is effective for the penetration of Furthermore, it is not necessary to provide injection ports for all of the roller gaps as shown in the drawings, and injection ports may be provided for each of several roller gaps. Furthermore, the roller conveyor is not limited to being arranged horizontally as shown in the figure, but may be inclined within a range that allows the wire to be conveyed. The jet stream is not limited to the jet of the processing liquid, and may be air jet as long as it is not harmful to the wire processing. As explained above, in the present invention, by conveying the wire with a roller conveyor and applying a jet flow to the wire from below, it is possible to shift the overlapping portion of the loop-shaped wire and measure the penetration of the pickling solution. Its industrial value is extremely great because it can reduce processing unevenness and greatly improve wire quality.
第１図は本発明法を応用した酸洗処理装置を示
す概略正断面図、第２図は第１図の平面図、第３
図は第１図の右側断面図である。
１…酸洗槽、１ａ…酸洗内槽、１ｂ…酸洗外
槽、２…搬送用ローラーコンベア、３…酸洗液、
４…噴射用配管、４′…噴射口、ｗ…ループ状線
材。
Fig. 1 is a schematic front sectional view showing a pickling treatment apparatus to which the method of the present invention is applied, Fig. 2 is a plan view of Fig. 1, and Fig. 3 is a plan view of Fig. 1.
The figure is a right sectional view of FIG. 1. 1... Pickling tank, 1a... Pickling inner tank, 1b... Pickling outer tank, 2... Transfer roller conveyor, 3... Pickling liquid,
4...Injection piping, 4'...Injection port, w...Loop-shaped wire rod.
Claims (1)
送しながら処理液に浸漬させて処理を行なうに際
し、線材をローラコンベアで搬送するとともに該
ローラコンベアの間隙下方より線材に噴射流を付
与することを特徴とするループ状線材の表面処理
方法。1. When processing a looped wire by placing it horizontally and immersing it in a treatment liquid while conveying it on a conveyor, the wire is conveyed on a roller conveyor and a jet stream is applied to the wire from below the gap between the roller conveyors. A method for surface treatment of a loop-shaped wire, characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19445481A JPS5896883A (en) | 1981-12-04 | 1981-12-04 | Surface treatment of looped wire rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19445481A JPS5896883A (en) | 1981-12-04 | 1981-12-04 | Surface treatment of looped wire rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5896883A JPS5896883A (en) | 1983-06-09 |
| JPH0116914B2 true JPH0116914B2 (en) | 1989-03-28 |
Family
ID=16324831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19445481A Granted JPS5896883A (en) | 1981-12-04 | 1981-12-04 | Surface treatment of looped wire rod |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5896883A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5854803A (en) | 1995-01-12 | 1998-12-29 | Semiconductor Energy Laboratory Co., Ltd. | Laser illumination system |
| JP2005175451A (en) * | 2003-11-20 | 2005-06-30 | Semiconductor Energy Lab Co Ltd | Laser irradiator and process for fabricating semiconductor device |
| US20070117287A1 (en) | 2005-11-23 | 2007-05-24 | Semiconductor Energy Laboratory Co., Ltd. | Laser irradiation apparatus |
| MX2017003104A (en) * | 2014-09-10 | 2017-08-15 | Nakagawa Special Steel Inc | Method for cleaning wire and device therefor. |
-
1981
- 1981-12-04 JP JP19445481A patent/JPS5896883A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5896883A (en) | 1983-06-09 |
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