JP2619771B2 - High quality, high coating weight galvanizing method - Google Patents
High quality, high coating weight galvanizing methodInfo
- Publication number
- JP2619771B2 JP2619771B2 JP26055692A JP26055692A JP2619771B2 JP 2619771 B2 JP2619771 B2 JP 2619771B2 JP 26055692 A JP26055692 A JP 26055692A JP 26055692 A JP26055692 A JP 26055692A JP 2619771 B2 JP2619771 B2 JP 2619771B2
- Authority
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- Japan
- Prior art keywords
- plating
- water
- linear material
- cooling device
- hot
- 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.)
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Description
【０００１】[0001]
【産業上の利用分野】本発明は線状材の高品質高付着量
溶融亜鉛めっき方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for hot-dip galvanizing of a linear material.
【０００２】[0002]
【従来の技術】線状材、たとえばＡＣＳＲ用鋼線、電話
線用吊り線、ケーブルなどの支持線、鉄道トロリー線の
メッセンジャーケーブル、ロープ用素線などにおいては
良好な耐食性が要求されるため、溶融亜鉛めっきが施さ
れることが多く、特に高い耐食性を要求される場合に
は、めっき付着量が２００g/m2以上の高付着量溶融亜鉛
めっきが施されている。このような高付着量溶融亜鉛め
っきにあたって、従来では一般に、めっき槽に配した自
由回転型のシンカーロールを介して、図４のように、線
状材を垂直に引き上げることによってめっき層の偏心を
防ぐようにし、めっき浴９０から引き出す部分に木炭や
不活性ガスなどからなる絞り部１１を配し、めっき槽表
面を被酸化性または還元雰囲気にすることでめっき表面
に酸化物等の付着するのを防止している。そして、めっ
き槽から線状材を引き上げた直後、すなわち絞り部１１
の直上で水冷ノズル１２０により水冷を行って溶融状態
のめっき層を凝固させている。2. Description of the Related Art Good corrosion resistance is required for wires such as steel wires for ACSR, suspension wires for telephone wires, support wires such as cables, messenger cables for railway trolley wires, and wires for ropes. Hot-dip galvanizing is often performed, and particularly when high corrosion resistance is required, hot-dip galvanizing with a coating weight of 200 g / m 2 or more is performed. Conventionally, in such a high coating weight hot-dip galvanizing, the eccentricity of the plating layer is generally raised by vertically pulling up the linear material as shown in FIG. 4 through a free-rotating sinker roll arranged in a plating tank. In order to prevent such a situation, a narrowing portion 11 made of charcoal or an inert gas is arranged at a portion drawn from the plating bath 90, and the surface of the plating tank is made to be oxidizable or reduced so that oxides and the like adhere to the plating surface. Has been prevented. Immediately after the linear material is pulled up from the plating tank, that is,
The water-cooled nozzle 120 cools the water just above the water-cooled nozzle 120 to solidify the molten plating layer.
【０００３】[0003]
【発明が解決しようとする課題】この際に水冷部分から
水滴がめっき槽に落下すると、めっき浴９０の表面に酸
化物が生成し、品質上問題となる。そこで、水冷ノズル
１２０の下側に水受け１３０，１４０を設けるととも
に、上下の水受け部１３０，１４０の間に送風手段１５
を設け、これによってエアを吹付け、水滴を絞り部１１
に落下させないようにしている。しかしこの方法では、
線状材の引き上げ方向が垂直であり、水冷ノズル１２０
から吹き付けられた水滴がめっき表面に添って垂直状に
落下するため、水受け１３０，１４０をめっき面に接近
させる必要がある。しかし、線状材は送風手段１５から
吹き付けられるエアによる外力で振動されるため、水受
け１３０，１４０が線状材と接触、干渉を起こすため、
十分に接近させることが困難である。このため、水冷部
分からの水滴の落下を完全に防止することは不可能で、
めっき表面への酸化物の付着による品質低下を避けられ
なかった。この対策として、送風エア圧を高くすると、
エアがめっき層に対する外力として作用するため、こと
に高付着量のめっきではめっき層の偏心が発生しやす
い。すなわち、めっき層の偏心とは周方向のめっき偏り
比（最大厚み／最小厚み）であり、このめっき偏り比が
３以上になりやすいという問題があった。At this time, if water drops fall from the water-cooled portion into the plating bath, an oxide is formed on the surface of the plating bath 90, which causes a quality problem. Therefore, the water receivers 130 and 140 are provided below the water cooling nozzle 120, and the blowing means 15 is provided between the upper and lower water receivers 130 and 140.
Is provided, whereby air is blown, and water droplets are drawn
Not to fall. But with this method,
The pulling direction of the linear material is vertical, and the water cooling nozzle 120
Since the water droplets sprayed from above fall vertically along the plating surface, it is necessary to bring the water receivers 130 and 140 closer to the plating surface. However, since the linear material is vibrated by the external force of the air blown from the blowing means 15, the water receivers 130 and 140 come into contact with and interfere with the linear material.
It is difficult to get close enough. For this reason, it is impossible to completely prevent water drops from falling from the water-cooled part,
Deterioration in quality due to the adhesion of oxides to the plating surface was unavoidable. As a countermeasure, increasing the air pressure
Since air acts as an external force on the plating layer, eccentricity of the plating layer is likely to occur particularly in plating with a high adhesion amount. That is, the eccentricity of the plating layer is the ratio of the plating deviation in the circumferential direction (maximum thickness / minimum thickness), and there is a problem that the plating deviation ratio is likely to be 3 or more.
【０００４】本発明は前記のような問題点を解消するた
めに創案されたもので、その目的とするところは、めっ
きの偏心を避けつつ冷却部からのめっき浴への水滴落下
による品質低下を効果的に防止し、高品質の高付着量溶
融亜鉛めっきを実現できる方法を提供することにある。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to avoid the eccentricity of plating and to reduce the quality deterioration due to the drop of water drops from a cooling unit onto a plating bath. It is an object of the present invention to provide a method capable of effectively preventing the problem and realizing high-quality hot-dip galvanizing of high quality.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するため
本発明は、めっき槽の溶融亜鉛めっき浴上に設けた絞り
部から線状材を引き上げ、該絞り部よりも上方に設けた
ノズルからなる冷却装置からの水を線状材に吹き当て、
該冷却装置よりも下方に設けた水受けで水を回収するこ
とにより溶融状態のめっき層を凝固させ、めっき付着量
２００ｇ／ｍ2以上の溶融亜鉛めつきを施す方法であっ
て、めっき槽からの線状材の引き上げ角度αを垂直から
１〜６度の範囲で傾斜させ、この傾斜角度に対応して水
受けを冷却装置からの水の落下線上に配して行う構成と
したものである。本発明において「溶融亜鉛めっき」と
は、溶融純亜鉛めっきのほか、亜鉛をベースとしこれに
Ａｌ、Ｓｎ、Ｎｉ、Ｍｇなどの１種以上を添加した溶融
亜鉛合金めっきを含む。また、「線状材」は素線および
撚り線を含むものである。In order to achieve the above-mentioned object, the present invention provides a method in which a linear material is pulled up from a narrowed portion provided on a hot-dip galvanizing bath of a plating tank, and a wire provided from a nozzle provided above the narrowed portion. Water from the cooling device
A method in which a molten plating layer is solidified by collecting water with a water receiver provided below the cooling device to apply a hot-dip zinc coating with a plating adhesion amount of 200 g / m 2 or more. Of the linear material is inclined in the range of 1 to 6 degrees from the vertical, and the water receiver is arranged on the falling line of water from the cooling device in accordance with the inclination angle. . In the present invention, the term "hot-dip galvanizing" includes hot-dip galvanizing, as well as hot-dip galvanized alloy, which is based on zinc and to which one or more of Al, Sn, Ni, Mg and the like are added. The “linear material” includes a strand and a stranded wire.
【０００６】以下本発明添付図面に基いて詳細に説明す
る。図１と図２は本発明によるめっき方法を概略的に示
している。ａは冷間引き抜き加工された線状材、１は線
状材ａの供給スイフト、２は溶融鉛浴であり、４００℃
前後の温度に保持され、前工程の伸線潤滑剤などをバー
ンアウトし、鋼線状材表面の脱脂を行い、次の水冷槽３
において冷却する。５は塩酸浴、６は水洗槽であり、線
状材ａは溶融鉛浴２による処理で生成した薄い酸化膜な
どの異物が除去され、水洗される。Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. 1 and 2 schematically show a plating method according to the present invention. a is a cold-drawn linear material, 1 is a supply swift for supplying the linear material a, 2 is a molten lead bath, and 400 ° C.
The temperature is maintained before and after, and the wire drawing lubricant in the previous process is burned out, the surface of the steel wire material is degreased, and the next water cooling tank 3
Cool in. Reference numeral 5 denotes a hydrochloric acid bath, 6 denotes a washing tank, and the linear material a is washed with water by removing foreign substances such as a thin oxide film generated by the treatment with the molten lead bath 2.
【０００７】次に線状材ａはフラックス槽７を通過する
ことによってフラックス処理が行われる。そして、この
ようにフラックス処理された線状材ａは、乾燥炉８を通
過することによってフラックス中の水分が乾燥され、次
いでめっき浴９０を満たしためっき槽９に導入され、め
っき浴９０内に配したシンカーロール１０を経由するこ
とによって溶融亜鉛めっきされる。Next, the wire material a is subjected to a flux treatment by passing through the flux tank 7. Then, the linear material a thus subjected to the flux treatment is dried in the flux by passing through the drying furnace 8, and then introduced into the plating tank 9 filled with the plating bath 90, and is introduced into the plating bath 90. Hot dip galvanization is performed by passing through the provided sinker roll 10.
【０００８】上記のようにめっきの付着された線状材ａ
はシンカーロール１０を経て上方に導かれ、めっき浴上
に設けられている絞り部１１で付着量が調整されたの
ち、水冷ノズルなどの冷却装置１２によってめっきが凝
固冷却される。溶融めっきの絞りは、木炭、アスベス
ト、あるいはガスグラベルなどの固体絞りでもよいが、
非酸化性ガスによる絞りでもよい。めっき付着量は２０
０ｇ／ｍ2が下限として必要である。それは亜鉛めっき
の耐食性はめっき層の厚さ（付着量）に比例するからで
あり、たとえば鉄線では直径が２ｍｍ以上において最少
限１９０ｇ／ｍ2が必要とされ、線径に応じて付着量の
下限は増加する。したがつて、本発明においてもめっき
付着量を２００ｇ／ｍ2以上としているのである。[0008] The linear material a to which plating is applied as described above
Is guided upward through a sinker roll 10 and the amount of adhesion is adjusted by a squeezing section 11 provided on the plating bath. Then, the plating is solidified and cooled by a cooling device 12 such as a water cooling nozzle. The drawing of hot-dip plating may be a solid drawing such as charcoal, asbestos, or gas gravel,
A throttle using a non-oxidizing gas may be used. The coating weight is 20
0 g / m 2 is required as the lower limit. This is because the corrosion resistance of zinc plating is proportional to the thickness (adhesion amount) of the plating layer. For example, iron wire requires a minimum of 190 g / m 2 when the diameter is 2 mm or more, and the lower limit of the adhesion amount depends on the wire diameter. Increases. Therefore, in the present invention, the coating weight is 200 g / m 2 or more.
【０００９】かかる工程は従来の方法と同様であるが、
本発明は、線状材ａのめっき槽９からの引き上げを垂直
から傾斜した角度αにとって行うものである。図２はそ
の詳細を示しており、(a)は線状材ａの引き上げ角度を
めっき浴に対し反時計方向側に角度αだけ傾斜させ、冷
却装置１２のやや下方の線状材ａを挾んで反対側に第１
水受け１３を配し、第１水受け１３よりも下位で冷却装
置１２の下側に第２水受け１４を配したものである。
(b)は線状材ａの引き上げ角度をめっき浴に対し時計方
向側に角度αだけ傾斜させ、冷却装置１２のやや下方の
線状材ａを挾んで反対側に第１水受け１３を配し、第１
水受け１３と同じ側でこれよりも下位に第２水受け１４
を配したものである。This process is the same as the conventional method,
In the present invention, the linear material a is lifted from the plating tank 9 at an angle α inclined from the vertical. FIG. 2 shows the details thereof. FIG. 2 (a) shows that the lifting angle of the linear material a is inclined counterclockwise with respect to the plating bath by an angle α, and the linear material a slightly below the cooling device 12 is sandwiched. And the first on the other side
A water receiver 13 is provided, and a second water receiver 14 is provided below the cooling device 12 below the first water receiver 13.
(b) shows a state in which the lifting angle of the linear material a is inclined clockwise with respect to the plating bath by an angle α, and the first water receiver 13 is disposed on the opposite side of the linear material a slightly below the cooling device 12. And the first
On the same side as the water receiver 13 and below it, a second water receiver 14
Is arranged.
【００１０】上記のように線状材ａの引き上げ角度が垂
直でなく傾斜しているため、冷却装置１２から線状材ａ
に吹き当てられた水滴ｗは、落下方向が絞り部１１から
離間した関係となる。そして、図２(a)では第２水受け
１４が水滴ｗの落下線上に位置され、図２(ｂ)では第１
水受け１３と第２水受け１４が水滴ｗの落下線上に位置
される。このため、水滴ｗがめっき浴９０の表面に達す
る前に第１、第２水受け１３，１４によって完全に回収
することができ、絞り部１１やその付近のめっき浴表面
に落下しなくなる。ここで、前記線状材ａの引き上げ傾
斜角度αは、垂直から１〜６度傾斜角度範囲とすべきで
ある。下限を１度としたのは、引き上げ傾斜角度αが垂
直に近いほど落下する水滴ｗの落下位置が引き上げ部に
近づく。このため、水受け１３，１４が線状材ａと干渉
し、めっき浴９０への水滴落下を防止することができ
ず、めっきの表面性状が劣化してしまうからである。し
たがって、引き上げ傾斜角度αは少なくとも１度以上は
必要である。As described above, since the lifting angle of the linear material a is not vertical but inclined, the cooling device 12
Has a relationship in which the falling direction is separated from the throttle unit 11. In FIG. 2A, the second water receiver 14 is positioned on the drop line of the water droplet w, and in FIG.
The water receiver 13 and the second water receiver 14 are positioned on the drop line of the water droplet w. For this reason, before the water droplet w reaches the surface of the plating bath 90, it can be completely collected by the first and second water receivers 13 and 14, and does not drop onto the narrowing portion 11 or the plating bath surface in the vicinity thereof. Here, the lifting inclination angle α of the linear material a should be in a range of 1 to 6 degrees from the vertical. The reason why the lower limit is set to 1 degree is that the falling position of the water droplet w that falls is closer to the lifting portion as the lifting inclination angle α is closer to vertical. For this reason, the water receivers 13 and 14 interfere with the linear material a, so that it is impossible to prevent water drops from falling into the plating bath 90, and the surface properties of the plating deteriorate. Therefore, the raising inclination angle α is required to be at least 1 degree.
【００１１】しかし、線状材ａの引き上げ傾斜角度αを
あまり大きくすることは、重力の影響によりめっき層の
偏心が大きくなり、品質上の悪影響が生ずる。すなわ
ち、引き上げ傾斜角度αを増加するにつれ重力の影響で
めっき厚みの偏りが大きくなるためやはり不可であり、
上限は６度である。これは本発明者の知見によるもの
で、すなわち、適正傾斜角を見出すべく線径やめっき付
着量を種々にして引き上げ角度とめっき偏り比の関係を
検討して知見したのである。その例として、線状材とし
て３．８７mmφのワイヤを使用し、めっき付着量５００
ｇ／ｍ2での垂直からの引き上げ角度とめっき偏り比と
の関係を示すと図３のとおりである。この図３から明ら
かなように、引き上げ角度とめっき偏り比の関係は放物
線状となり、引き上げ角度の傾きが小さい範囲でめっき
偏り比の変化が小さい。この傾向は線径やめっき付着量
を異にしても同様であった。従来一般に、垂直引き上げ
方式において、めっき偏り比は３以下が要求されてお
り、このめっき偏り比３以下を満足するためには、図３
から引き上げ傾斜角度αの上限は約６度であることがわ
かる。そこで本発明は、引き上げ傾斜角度αを垂直から
１〜６度の範囲としたものであり、この範囲であれば、
めっき浴への水滴の落下を防止できるとともに、めっき
の偏り比を３以下の適正範囲内に留めることができる。However, if the pulling-up inclination angle α of the linear material a is made too large, the eccentricity of the plating layer becomes large due to the influence of gravity, resulting in an adverse effect on quality. In other words, as the pulling inclination angle α is increased, the bias of the plating thickness becomes larger due to the influence of gravity, which is also impossible.
The upper limit is 6 degrees. This is based on the knowledge of the present inventor, that is, the relationship between the pulling angle and the plating bias ratio was studied by varying the wire diameter and the amount of plating adhesion to find an appropriate inclination angle. As an example, a wire of 3.87 mmφ is used as the linear material, and the plating adhesion amount is 500
FIG. 3 shows the relationship between the lifting angle from the vertical at g / m 2 and the plating bias ratio. As is apparent from FIG. 3, the relationship between the lifting angle and the plating bias ratio is parabolic, and the change in the plating bias ratio is small within a range where the inclination of the lifting angle is small. This tendency was the same even when the wire diameter and the plating adhesion amount were changed. Conventionally, in the vertical pull-up method, the plating deviation ratio is required to be 3 or less, and in order to satisfy the plating deviation ratio of 3 or less, as shown in FIG.
From this, it can be seen that the upper limit of the pulling inclination angle α is about 6 degrees. Therefore, in the present invention, the lifting inclination angle α is set in a range of 1 to 6 degrees from the vertical, and in this range,
It is possible to prevent water droplets from falling into the plating bath and to keep the bias ratio of plating within an appropriate range of 3 or less.
【００１２】[0012]
【実施例】次に本発明の実施例を示す。線径が２.６０
〜３.８７mmφの鋼線に４００℃の溶融鉛浴での脱脂、
濃度１５％の塩酸による酸洗後、水洗し、ZnCl2・NH4Cl
の混合フラックス処理を施し、表１に示すように、線速
３０〜３５m/minのめっき条件、めっき浴組成を亜鉛、
亜鉛−アルミニウム合金の２種とし、装置として図２
（ａ）を使用し、めっき浴からの引き上げ傾斜角度αを
種々にとってめっきを行った。得られた亜鉛めっき線の
表面状態、めっき付着量、めっき偏り比を従来の垂直引
き上げによる結果と比較して表１に示す。なお、表面状
態は目視によって評価し、◎は極めて良好、Ｏは良好、
△は一部不良、×は不良をそれぞれ示す。Next, examples of the present invention will be described. 2.60 wire diameter
Degreasing in a molten lead bath at 400 ° C on a steel wire of ~ 3.87 mmφ,
After pickling with hydrochloric acid having a concentration of 15%, washing with water is performed, and ZnCl 2 .NH 4 Cl
And a plating flux of 30 to 35 m / min and a plating bath composition of zinc,
Figure 2 shows two types of zinc-aluminum alloys.
Using (a), plating was carried out with various inclination angles α raised from the plating bath. Table 1 shows the surface state, the amount of plating applied, and the plating bias ratio of the obtained galvanized wire in comparison with the results obtained by conventional vertical pulling. In addition, the surface state was evaluated visually, 、 was extremely good, O was good,
Δ indicates partial failure and X indicates failure.
【００１３】[0013]
【表１】 [Table 1]
【００１４】表１から明らかなように、めっき浴からの
引き上げ傾斜角度αが１〜６度の範囲内にあるＮｏ．４
〜１０(本発明)はいずれも表面状態が良好で、かつ、め
っきの偏り比も小さく、品質が優れていることがわか
る。これに対して、Ｎｏ．１〜３の従来例は、垂直引き
上げであるため、水滴の落下によってめっきの表面状態
が著しく劣化している。Ｎｏ．１１〜１３の比較例は、
めっき浴からの引き上げ傾斜角度αが大きいため、めっ
きの偏心が大きくなり品質が悪い。またＮｏ．１４の比
較例はめっき浴からの引き上げ傾斜角度αが小さすぎる
ことにより水冷のズルから供給された水の水滴がめっき
浴表面へ落下がしたため、めっき表面状態が悪くなって
いる。As is clear from Table 1, when the pulling-up inclination angle α from the plating bath is in the range of 1 to 6 degrees, No. 1 is used. 4
It can be seen that all of Nos. To 10 (the present invention) have good surface conditions, a small bias ratio of plating, and excellent quality. On the other hand, no. In the conventional examples of Nos. 1 to 3, the surface condition of the plating is remarkably deteriorated due to the drop of water droplets because of the vertical pulling. No. Comparative examples 11 to 13 are:
Since the pulling inclination angle α from the plating bath is large, the eccentricity of plating is large and the quality is poor. No. In the comparative example of No. 14, the water droplets supplied from the water-cooled water drops dropped on the surface of the plating bath because the inclination angle α pulled up from the plating bath was too small, so that the plating surface condition was poor.
【００１５】[0015]
【発明の効果】以上説明した本発明によるときには、め
っき槽の溶融亜鉛めっき浴上に設けた絞り部１１から線
状材を引き上げ、該絞り部１１よりも上方に設けたノズ
ルからなる冷却装置１２からの水を線状材に吹き当て、
該冷却装置１２よりも下方に設けた水受け１３，１４で
水を回収することにより溶融状態のめっき層を凝固さ
せ、めっき付着量２００ｇ／ｍ2以上の溶融亜鉛めつき
を施す方法であって、めっき槽からの線状材の引き上げ
角度αを垂直から１〜６度の範囲で傾斜させ、この傾斜
角度に対応して水受け１３，１４を冷却装置１２からの
水の落下線上に配して行うので、冷却装置１２から噴出
されて線状材ａに接触した水の水滴をほぼ完全に回収す
ることができ、絞り部１１やその付近のめっき浴表面へ
の水滴の落下を防止することができ、それによりめっき
の表面性状を良くすることができる。かつ、引き上げ角
度αの上限を垂直に対して６度とし、線状材が過大な傾
斜角度で引き上げられないため、めっきの偏り比も規定
範囲にすることができ、これにより高付着量かつ高品質
の溶融亜鉛めっきを施すことができる。さらに、線状材
の引き上げ角度αを前記範囲とすることにより、水滴落
下防止のためのエアの送風を省略することも可能にな
り、電力費の節減も図ることができ、装置構造も簡単で
比較的安価に実施することができるなどのすぐれた効果
が得られる。According to the present invention described above, the linear material is pulled up from the constricted portion 11 provided on the hot-dip galvanizing bath of the plating tank, and the cooling device 12 comprising a nozzle provided above the constricted portion 11 is provided. Sprays water from the
A method in which the molten plating layer is solidified by collecting water in water receivers 13 and 14 provided below the cooling device 12 to apply molten zinc with a plating adhesion amount of 200 g / m 2 or more. The angle α at which the linear material is lifted from the plating tank is inclined in the range of 1 to 6 degrees from the vertical, and the water receivers 13 and 14 are arranged on the falling line of water from the cooling device 12 in accordance with the inclination angle. Therefore, it is possible to almost completely collect water droplets ejected from the cooling device 12 and coming into contact with the linear material a, thereby preventing the water droplets from dropping onto the narrowing portion 11 and the plating bath surface in the vicinity thereof. And thereby improve the surface properties of the plating. In addition, the upper limit of the lifting angle α is set to 6 degrees with respect to the vertical, and since the linear material is not lifted at an excessive inclination angle, the bias ratio of plating can be set within a specified range, thereby providing a high deposition amount and a high deposition rate. High quality hot dip galvanizing can be applied. Further, by setting the pulling angle α of the linear material within the above range, it is possible to omit the blowing of air for preventing water droplets from dropping, it is possible to reduce power consumption, and the apparatus structure is simple. Excellent effects such as relatively low cost can be obtained.
【図１】本発明によるめっき法の工程の一例を示す説明
図である。FIG. 1 is an explanatory diagram showing an example of steps of a plating method according to the present invention.
【図２】（ａ）（ｂ）は本発明における線状材の引き上
げ状態を示す説明図である。FIGS. 2 (a) and 2 (b) are explanatory views showing a state of pulling up a linear material in the present invention.
【図３】線状材の引き上げ角度とめっき偏り比の関係を
示す線図である。FIG. 3 is a diagram showing a relationship between a lifting angle of a linear material and a plating bias ratio.
【図４】従来のめっき法における線状材の引き上げ状態
を示す説明図である。FIG. 4 is an explanatory view showing a state of pulling up a linear material in a conventional plating method.
９ めっき槽 １１ 絞り部 １２ 冷却装置 １３，１４ 水受け α 線状材の引き上げ角度 9 Plating tank 11 Narrowing part 12 Cooling device 13, 14 Water receiver α Pull-up angle of linear material
Claims (1)
り部１１から線状材を引き上げ、該絞り部１１よりも上
方に設けたノズルからなる冷却装置１２からの水を線状
材に吹き当て、該冷却装置１２よりも下方に設けた水受
け１３，１４で水を回収することにより溶融状態のめっ
き層を凝固させ、めっき付着量２００ｇ／ｍ2以上の溶
融亜鉛めつきを施す方法であって、めっき槽からの線状
材の引き上げ角度αを垂直から１〜６度の範囲で傾斜さ
せ、この傾斜角度に対応して水受け１３，１４を冷却装
置１２からの水の落下線上に配して行うことを特徴とす
る高品質高付着量溶融亜鉛めっき方法。1. A linear material is pulled up from a narrowed portion 11 provided on a hot-dip galvanizing bath of a plating tank, and water from a cooling device 12 comprising a nozzle provided above the narrowed portion 11 is converted into a linear material. A method in which the molten coating layer is solidified by spraying and collecting water in water receivers 13 and 14 provided below the cooling device 12 to apply hot-dip zinc plating with a plating adhesion amount of 200 g / m 2 or more. And the angle α at which the linear material is lifted from the plating tank is inclined in the range of 1 to 6 degrees from the vertical, and the water receivers 13 and 14 are placed on the falling line of water from the cooling device 12 in accordance with the inclination angle. High quality, high coating weight hot-dip galvanizing method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26055692A JP2619771B2 (en) | 1992-09-04 | 1992-09-04 | High quality, high coating weight galvanizing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26055692A JP2619771B2 (en) | 1992-09-04 | 1992-09-04 | High quality, high coating weight galvanizing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0688189A JPH0688189A (en) | 1994-03-29 |
| JP2619771B2 true JP2619771B2 (en) | 1997-06-11 |
Family
ID=17349601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26055692A Expired - Lifetime JP2619771B2 (en) | 1992-09-04 | 1992-09-04 | High quality, high coating weight galvanizing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2619771B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5509870B2 (en) * | 2010-01-22 | 2014-06-04 | 横浜ゴム株式会社 | Galvanized steel cord for rubber reinforcement |
-
1992
- 1992-09-04 JP JP26055692A patent/JP2619771B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0688189A (en) | 1994-03-29 |
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