JPH01306547A - Method for controlling hot dip galvanizing spangle - Google Patents
Method for controlling hot dip galvanizing spangleInfo
- Publication number
- JPH01306547A JPH01306547A JP63137451A JP13745188A JPH01306547A JP H01306547 A JPH01306547 A JP H01306547A JP 63137451 A JP63137451 A JP 63137451A JP 13745188 A JP13745188 A JP 13745188A JP H01306547 A JPH01306547 A JP H01306547A
- Authority
- JP
- Japan
- Prior art keywords
- steel strip
- spangle
- spangles
- hot dip
- powder
- 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
- 238000005246 galvanizing Methods 0.000 title claims abstract description 11
- 238000000034 method Methods 0.000 title claims description 8
- 238000005507 spraying Methods 0.000 claims abstract description 20
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 11
- 239000010959 steel Substances 0.000 claims abstract description 11
- 238000009826 distribution Methods 0.000 claims abstract description 8
- 229910001335 Galvanized steel Inorganic materials 0.000 claims abstract description 5
- 239000008397 galvanized steel Substances 0.000 claims abstract description 5
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 23
- 238000007711 solidification Methods 0.000 claims description 3
- 230000008023 solidification Effects 0.000 claims description 3
- 239000011701 zinc Substances 0.000 claims description 2
- 229910052725 zinc Inorganic materials 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 abstract 4
- 239000000843 powder Substances 0.000 abstract 3
- 230000008018 melting Effects 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- 238000007747 plating Methods 0.000 description 8
- 239000007921 spray Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000007 visual effect Effects 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
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/26—After-treatment
- C23C2/265—After-treatment by applying solid particles to the molten coating
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Coating With Molten Metal (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、溶融亜鉛メッキスパングルの制御方法に関
する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] This invention relates to a method of controlling hot-dip galvanized spangles.
溶融亜鉛メッキラインにおいて鋼帯表面のスパングルを
消去しようとする場合、メッキ面に亜鉛粉を吹付ける方
式が有効とされている。When attempting to eliminate spangles on the surface of a steel strip in a hot-dip galvanizing line, it is considered effective to spray zinc powder onto the galvanized surface.
第２図は亜鉛粉吹付けによるスパングル消去の従来例を
示しており、オペレータはメッキ表面のスパングルの大
きさを観察しながら、スパングル調整装置（１０）を上
下に動かすことにより、該装置（１０）による亜鉛粉の
吹付は位置の調整を行なっていた。Figure 2 shows a conventional example of removing spangles by spraying zinc powder.The operator moves the spangle adjusting device (10) up and down while observing the size of the spangles on the plating surface. ) was used to adjust the position of zinc powder spraying.
しかし、メッキ表面が凝固する以前又は凝固した後に亜
鉛粉の吹付けを行なってもスパングルの消去に有効では
なく、その凝固直前に亜鉛粉を吹付ける必要がある。そ
のためオペレータの目視観察に依存する従来の方法では
、亜鉛粉吹付は位置が果たしてメッキ表面凝固以前にあ
るのか、又はそわ以後に位置しているのかを判断するこ
とは難しい。その結果、スパングル調整装置（１０）を
最適位置に移動させるまでに時間を要し、それまでの間
に格落品が多計に発生して製品歩留りを著しく低下せし
めている。However, spraying zinc powder before or after the plating surface solidifies is not effective in eliminating spangles, and it is necessary to spray zinc powder immediately before solidification. Therefore, with conventional methods that rely on visual observation by an operator, it is difficult to determine whether the zinc powder is sprayed before the plating surface solidifies or after the plating surface has stiffened. As a result, it takes time to move the spangle adjustment device (10) to the optimum position, and in the meantime, a large number of rejected products occur, significantly reducing product yield.
本発明は以上のような問題に鑑み創案されたもので、亜
鉛粉吹付は位置を速やかに最適位置にｖ！Ｊ＊できるス
パングル制御方法を提供せんとするものである。The present invention was devised in view of the above-mentioned problems, and the zinc powder spraying can be quickly adjusted to the optimum position. The purpose of this invention is to provide a spangle control method that can achieve J*.
そのため本発明は、亜ｔ（ｌ粉吹付は位置の前後におけ
る鋼帯幅方向の温度分布をＪｌ’！定し、測定された幅
方向温度分布から該鋼帯の温度が全幅に亘り亜鉛の凝固
温度よりわずかに高くなるライン位置を算出し、前記亜
鉛粉吹付は位置がそのライン位置に−・致するように調
整することを基本的特徴としている。Therefore, in the present invention, the temperature distribution in the width direction of the steel strip is determined before and after the position of the zinc powder spraying, and from the measured temperature distribution in the width direction, the temperature of the steel strip is determined over the entire width. The basic feature is that the line position where the temperature is slightly higher is calculated, and the zinc powder spraying is adjusted so that the position matches the line position.
このように温度分布のＢｌ’ｌ定及び判定に括づいて亜
鉛粉吹付は位置の調整を行なうので、短時間で最適位置
に７Ａ整することができることになる。In this way, the position of zinc powder spraying is adjusted based on the Bl'l determination and determination of the temperature distribution, so that the optimum position of 7A can be adjusted in a short time.
以下、添付図面に基づいて本発明の実施例につき説明す
る。Embodiments of the present invention will be described below based on the accompanying drawings.
第１図は溶融亜鉛メッキラインに適用された本発明法の
実施設備の一例を示しており、（１）はスパングル調整
装置、（２） （３）は温度計、（４）はスパングル調
整装置（１）用の位置コン（−ローラを示している。Figure 1 shows an example of equipment for implementing the method of the present invention applied to a hot-dip galvanizing line, where (1) is a spangle adjustment device, (2), (3) is a thermometer, and (4) is a spangle adjustment device. Position control for (1) (- shows roller.
スパングル調整装置（１）は溶融亜鉛メッキラインの亜
鉛メッキ鋼帯（１００）のメッキ表面に亜鉛粉を吹付け
るもので、この装置はメッキライン方向に移動可能であ
り、後述する位置コントローラ（４）の制御により移動
してその位置調整ができることになる。The spangle adjustment device (1) sprays zinc powder onto the plating surface of the galvanized steel strip (100) on the hot-dip galvanizing line.This device is movable in the direction of the plating line, and is controlled by a position controller (4) to be described later. It is possible to move and adjust its position under the control of
又、温度計（２） （３）はスパングル調整装置（１）
の入側と出側に夫々設置されて、１１帯（１００）表面
の幅方向の温度を測定するもので、その１ｌｌｉ定結果
は、Ａ／Ｄ変換器（２ａ） （３ａ）でデジタル信号に
変換されて位置コントローラ（４）に向けて出力される
。Also, the thermometers (2) and (3) are the spangle adjustment device (1)
These devices are installed on the inlet and outlet sides of the 11 zone (100) to measure the temperature in the width direction of the surface of the 11 zone (100). It is converted and output to the position controller (4).
更に位置コントローラ（４）は温度計（２） （３）か
らＡ／Ｄ変換器（２ａ）（３ａ）を経て出力されてきた
信号に基づいて鋼帯幅方向の温度分布を求め。Further, the position controller (4) determines the temperature distribution in the width direction of the steel strip based on the signals output from the thermometers (2) and (3) via the A/D converters (2a) and (3a).
その温度分布から該銅帯（１００）の温度が全幅に亘っ
て亜鉛の凝固温度よりわずかに高（なる温度（約４１９
℃）のライン位置を予想・算出する。From the temperature distribution, the temperature of the copper strip (100) is slightly higher than the solidification temperature of zinc (approximately 419
Predict/calculate the line position of ℃).
そして前記スパングル調整装置（１）による亜鉛粉吹付
は位置がこのライン位置と−ｍするようにスパングル調
１１装置（１）をメッキライン方向に移動せしめるよう
に作動する。The zinc powder spraying by the spangle adjusting device (1) is operated to move the spangle adjusting device (1) in the direction of the plating line so that its position is -m from this line position.
この位置コントローラ（４）によるスパングル調整装置
（１）の位置制御に一ノいて詳述すると、亜鉛粉吹付は
位置が上記ライン位置より高温側にある場合、該位置コ
ントローラ（４）はスパングル調整装置（１）を啄鉛メ
ッキ４！（１０１）より遠ざかる方向（低温側方向）へ
移動させ、又、亜鉛粉吹付は位置がライン位置より低温
側にある場合は該装置（１）を亜鉛メッキ槽（１０１）
側方向（高温側方向）へ移動せしめる。このような操作
が短時間のうちに自動的に繰返され、前記ライン位置と
亜鉛粉吹付は位置とが一致することになる。To explain in detail the position control of the spangle adjustment device (1) by the position controller (4), when the zinc powder spraying position is on the high temperature side than the above line position, the position controller (4) controls the spangle adjustment device (1) Plated with lead 4! (101) in the direction farther away (toward the low temperature side), and if the zinc powder spraying position is on the low temperature side from the line position, move the device (1) to the galvanizing tank (101).
Move it to the side (toward the high temperature side). Such operations are automatically repeated within a short period of time, and the line position and the zinc powder spraying position match.
従ってスパンクル調ＩＩ ”Ａ ｉｉ’ｔ、 （１）か
ら噴出される亜鉛粉はｍ帯（１００）表面の亜鉛メッキ
凝固１ｊγ前にそのメッキ面に吹付けられ、スパングル
の消去が短時間のうちに確実になされることになる。Therefore, the zinc powder spouted from Spangle-like II ``A ii't, (1) is sprayed onto the plating surface of the m-band (100) surface before the galvanizing solidifies 1jγ, and the spangles are erased in a short time. It will definitely be done.
以上詳述したように本発明の溶融亜鉛メッキスパングル
の制御方法によれば、スパングル消去のために最適な位
置に亜鉛粉吹付は位Ｅｆを短時間のうちに移動せしめる
ことができることになり、格落品の発生量が少なくなる
等の製品歩留りが向上し、更にオペレータの作業負荷も
軽減されることになるという優れた効果を有している。As described in detail above, according to the method for controlling hot-dip galvanized spangles of the present invention, the zinc powder spraying position Ef can be moved to the optimal position for erasing spangles in a short time. This has the excellent effect of improving product yield, such as reducing the amount of dropped items, and further reducing the operator's workload.
第１図は本発明法の実施設備の一例を示す説明図、第２
図は亜鉛粉吹付けによるスパングル消去の従来例を示す
説明図である。
図中、（１）（ｔｏ）はスパングル調整装置、（２）（
３）は温度計、（２ａ）（：３ａ）はＡ／Ｄ変換器、（
４）は位置コントローラ、（１００）は鋼帯、（ｔｏｉ
）は亜鉛メッキ槽を各示す。Figure 1 is an explanatory diagram showing an example of equipment for implementing the method of the present invention;
The figure is an explanatory view showing a conventional example of removing spangles by spraying zinc powder. In the figure, (1) (to) is a spangle adjustment device, (2) (
3) is a thermometer, (2a) (:3a) is an A/D converter, (
4) is a position controller, (100) is a steel strip, (toi
) indicates each galvanizing tank.
Claims (1)
ることにより溶融亜鉛メッキラインにおけるスパングル
を消去する溶融亜鉛メッキスパングルの制御方法におい
て、亜鉛粉吹付け位置の前後における鋼帯幅方向の温度
分布を測定し、測定された幅方向温度分布から該鋼帯の
温度が全幅に亘り亜鉛の凝固温度よりわずかに高くなる
ライン位置を算出し、前記亜鉛粉吹付け位置がそのライ
ン位置に一致するように調整することを特徴とする溶融
亜鉛メッキスパングルの制御方法。In a hot-dip galvanizing spangle control method that eliminates spangles in a hot-dip galvanizing line by spraying zinc powder onto the surface of a galvanized steel strip immediately after galvanizing, temperature distribution in the width direction of the steel strip before and after the zinc powder spraying position. From the measured temperature distribution in the width direction, calculate the line position where the temperature of the steel strip is slightly higher than the solidification temperature of zinc over the entire width, and make sure that the zinc powder spraying position coincides with that line position. A method for controlling hot-dip galvanized spangles, which is characterized by adjusting the spangles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63137451A JPH01306547A (en) | 1988-06-06 | 1988-06-06 | Method for controlling hot dip galvanizing spangle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63137451A JPH01306547A (en) | 1988-06-06 | 1988-06-06 | Method for controlling hot dip galvanizing spangle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01306547A true JPH01306547A (en) | 1989-12-11 |
Family
ID=15198916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63137451A Pending JPH01306547A (en) | 1988-06-06 | 1988-06-06 | Method for controlling hot dip galvanizing spangle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01306547A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT405770B (en) * | 1997-09-24 | 1999-11-25 | Voest Alpine Ind Anlagen | METHOD FOR CONTROLLING A '' GALVANNEALING '' PROCESS |
| KR100616737B1 (en) * | 2004-12-28 | 2006-08-28 | 동부제강주식회사 | The method and equipment for spangle control of the Hot-Dip Aluminized Steel Sheet |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6115956A (en) * | 1984-06-22 | 1986-01-24 | ユニオン・シリデユルジク・デユ・ノール・エ・ド・レス・ド・ラ・フランス・パル・アブルビエーシヨン・“ユジノル” | Method and apparatus for diminishing crystal size of zinc-plated steel sheet |
-
1988
- 1988-06-06 JP JP63137451A patent/JPH01306547A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6115956A (en) * | 1984-06-22 | 1986-01-24 | ユニオン・シリデユルジク・デユ・ノール・エ・ド・レス・ド・ラ・フランス・パル・アブルビエーシヨン・“ユジノル” | Method and apparatus for diminishing crystal size of zinc-plated steel sheet |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT405770B (en) * | 1997-09-24 | 1999-11-25 | Voest Alpine Ind Anlagen | METHOD FOR CONTROLLING A '' GALVANNEALING '' PROCESS |
| KR100616737B1 (en) * | 2004-12-28 | 2006-08-28 | 동부제강주식회사 | The method and equipment for spangle control of the Hot-Dip Aluminized Steel Sheet |
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