200408724 玖、發明說明： 【發明所屬之技術領域】 本發明關於一種將一金屬條帶熔浸鍍覆的方法，特別 是用於將鋼帶熔浸鍍覆者，其中該金屬條帶垂直通過一個 容納該熔融鍍覆金屬的容器及一條接在前面的導引通道， 其中利用至少二個設在金屬條帶兩側的電感器產生一股電 磁％ ’以將谷器中的鍵覆金屬保持在導引通道的區域中。 此外本發明關於一種將一金屬條帶溶浸鍍覆的方法。 【先前技術】 傳統的金屬帶的金屬熔浸鍍覆的設備有一需密集維修 的邛为，亦即鍍覆容器（它具有位在其中的設備）。所要 鍍覆的金屬帶的表面在鍍覆前要清洗除去氧化物剩餘物， 並作活化以與鑛覆金屬接合。因此之故，該金屬帶表面在 鍍覆前要在-還原性的大氣中用熱程序處理。由於氧化物 層先前用化學方式或用刮磨方式除去，因此利用這種還原 性熱程序可將表面活化，使它在熱程序之後變成純金屬元 素性。 但隨著鋼帶表面活化，此鋼帶表面對周圍空氣中的氧 的親和力卻會上升。為了防止线巾的氧在鍍覆程序前會 再跑到鋼帶表面’故將這些鋼帶在—浸人f(T咖㈣ 英·· dipping trunk)中從上放入兮读雜她+ 屬…n 槽中。由於「鍍覆金 ’人們會利用重力配合吹離裝置調整铲層厚 度，但隨後的程序-直到鍍覆金屬完全凝固為止鋼帶^有 200408724 接觸，因此鋼帶在鍍覆容器中須轉向到垂直方向。這點係 利用一滾子達成，該滾子在液態金屬中跑動。此滾子受到 液心鍍復金屬作用而有很属害的磨損。因此會造成生產作 業中的停止運轉及全面停擺的情事。 藉著使鍍覆金屬的有所要的小的施覆厚度（這種厚度 係會在微米範圍内變動），可符合鋼帶表面品質的要求^ 這表不，泫用於導引鋼帶的滾子的表面也要有高品質。在 這些滾子表面的瑕疵一般會造成鋼帶表面損壞，這點也是 忒设備常常要停止運轉的另一原因。 為了避免此一問題（它係與該在液態鍍覆金屬中跑動 的滾子的問題一起存在），故使用下方開口的鍍覆容器， 其下方區域有一導引通道以供鋼帶垂直向上通過，並使用 :電磁封閉件以作密封。在此該封閉件係一電磁電感器， 忒電感器利用推回（zuriickdrangen)、泵動式、或箍縮 (emschntiren ’英：pinching)的電磁式交流場或漂移場工作 ，這種電磁場將鍍覆容器下方密封住。 這種解決方案的一個例子見於歐洲專利Ep 〇 444 依國際專利WO 96/03533或日本專利jp_5〇86446的 解決方案也使用一電磁封閉件將鍍覆容器下方密封。 歐洲專利EPO 659 897 B1也在一錢覆設備中使用一電 兹封閉件。在，亥案中另設有保持手段，藉之可將鍍覆容器 中的炼融鍍覆金屬的位面狀態保持恆定。 :攻些解決方案的缺點在於··該電磁封閉件在熔融鍍覆 金屬中會造成一股液流，此液流在密封作用的磁場很強的 200408724 %合會在槽液表面產生波狀運動。這點在製造高品質之鍍 覆金屬帶時會有不利的影響。 【發明内容】 因此本發明的目的在提供一種將一金屬條帶熔浸鍍覆 的方法及相關的裝£ ’藉之可避it上述缺點。特別是儘管 在―種下方開口的鑛覆容器使用電磁式封閉#，槽液表面 仍可儘可能地平靜’這點可產生高品質的鍍覆金屬條帶。 依本發明，這種目的達成之道，係依容器之熔融鍍覆 籲 金屬的液面的液面狀‘態而確u電感_產生之磁場強度值200408724 发明 Description of the invention: [Technical field to which the invention belongs] The present invention relates to a method for hot-dip plating of a metal strip, especially for a hot-dip plating of a steel strip, wherein the metal strip passes vertically through a A container containing the molten plated metal and a guide channel connected to the front, in which at least two inductors provided on both sides of the metal strip are used to generate an electromagnetic force% to keep the keyed metal in the valley device at In the area of the guide channel. In addition, the present invention relates to a method for dip plating a metal strip. [Prior art] Conventional metal immersion plating equipment for metal strips has an operation that requires intensive maintenance, that is, a plating container (which has equipment in it). The surface of the metal strip to be plated is cleaned to remove oxide residues before plating and activated to join the cladding metal. For this reason, the surface of the metal strip is subjected to a thermal process in a reducing atmosphere before plating. Since the oxide layer was previously removed chemically or by scraping, the surface can be activated using this reductive thermal process, making it pure metallic after the thermal process. However, as the surface of the steel strip is activated, the affinity of the surface of the steel strip for oxygen in the surrounding air increases. In order to prevent the oxygen of the scarf from running to the surface of the steel strip before the plating process, so these steel strips are placed in the dipping trunk (dipping trunk). Read her + … N slot. Because "plated gold" people will use gravity to cooperate with the blow off device to adjust the thickness of the shovel layer, but the subsequent procedure-until the plated metal is completely solidified, the steel strip has 200408724 contact, so the steel strip must be turned vertically in the plating container. This is achieved using a roller that runs in the liquid metal. This roller is subject to harmful wear due to the action of the liquid-core plated metal. As a result, the production operation can be stopped and stopped completely. By making the coated metal with a small required coating thickness (this thickness will vary in the micrometer range), it can meet the requirements for the surface quality of the steel strip ^ This is not used for guiding steel The surface of the rollers must also be of high quality. Defects on the surface of these rollers will generally cause damage to the surface of the steel strip. This is also another reason why equipment often stops. To avoid this problem (it is Coexisting with the problem of rollers running in liquid plated metal), so the plating container opened below is used, and a guide channel is provided in the lower area for the steel strip to pass vertically upward, and : An electromagnetic closure is used for sealing. Here the closure is an electromagnetic inductor. The inductor uses an electromagnetic AC field or drift that is pushed back (zuriickdrangen), pumped, or pinched (emschntiren). This electromagnetic field will seal the bottom of the plating container. An example of this solution is found in the European patent Ep 〇444 according to the international patent WO 96/03533 or the Japanese patent jp_5〇86446 solution also uses an electromagnetic closure The bottom of the plating container is sealed. The European patent EPO 659 897 B1 also uses an electric seal in a coating device. In the case, a holding means is additionally provided by which the melting and melting plating in the plating container can be performed. The plane state of the metal remains constant .: The disadvantage of some solutions is that the electromagnetic seal will cause a liquid flow in the molten plated metal. This liquid flow has a strong sealing magnetic field of 200408724%. Wave-like motion occurs on the surface of the bath. This has an adverse effect on the manufacture of high-quality plated metal strips. SUMMARY OF THE INVENTION The object of the present invention is to provide a metal strip. The method of immersion plating and the related equipment can be used to avoid the above disadvantages. In particular, although the ore-covered container opened below the type uses an electromagnetic closure #, the surface of the bath can still be as calm as possible. Can produce high-quality plated metal strips. According to the present invention, this purpose is achieved by determining the level of the magnetic field generated by the inductance according to the liquid state of the liquid surface of the molten metal plating of the container.
—因此本發明的構想，係依鍍覆容器中的充滿程度而 疋電感之作岔封所需的磁場強度。因此造成一種耦 其中電磁场正好正大使得不會有炫融鑛覆金屬通過導』 通道向下流出，但該電磁場仍保持夠小，使槽液表面充, 平靜。在此，本發明係利用一種觀念，即：用於封閉⑹ 的底開Π的電磁場強度和錢覆容器中㈣㈣覆金乂 的充滿程度很有關。但上述的進行方式造成之密封作用6 磁場強度不會太強，故可造成平靜的槽液表面。 在此該電磁場可為-種多相漂移場，它係藉著施加一 固頻率在2赫〜2仟赫間的交流電而產生。如不用此方3 2可使用單相交流場，它係藉施加_個頻率在2 1 〇仟赫間的交流電產生。-Therefore, the idea of the present invention is based on the fullness of the plating container, and the magnetic field strength required for the choke of the inductor. As a result, there is a coupling in which the electromagnetic field is just large enough that no dazzling molten metal will flow down through the channel, but the electromagnetic field is still small enough to make the surface of the bath filled and calm. Here, the present invention makes use of the idea that the strength of the electromagnetic field of the bottom opening Π used to close ⑹ is related to the degree of filling of ㈣㈣㈣㈣ in the money container. However, the sealing effect caused by the above-mentioned method 6 will not cause the magnetic field strength to be too strong, so it can cause a calm surface of the bath fluid. Here, the electromagnetic field may be a kind of multi-phase drift field, which is generated by applying an alternating current having a solid frequency between 2 Hz and 2 GHz. If you do not use this method, you can use a single-phase AC field, which is generated by applying AC power with a frequency between 2 10 MHz.
該用於在電感器中激發電磁場的密封作用的阻感器 9 200408724 (Reduktor)的電流的振幅係有利 π 〜一 jg ,, ^ (各器内的溶融錢覆今 屬的液面狀態而定作確定。如 . ^ # ^ . π , +知用延種方式，或者除了 坆種方式外同時另外還可依容 狀態而定確定該用於在電容鑛屬的液面 ^亥用於在電…激發磁場的電流的頻率。 取後一點，如不用此方式，或者 _ _ 4你了沒種方式外同時另外 還可依容器内的熔融鍍覆金屬的 荀幻/夜面狀態而定，確定 於在電感器中激發該磁場的電流的函數走冑。 以The resistor 9 200408724 (Reduktor) for the purpose of encouraging the sealing effect of the electromagnetic field in the inductor 9 The amplitude of the current is favorable π ~ -jg ,, ^ (The melting money in each device depends on the liquid state Make sure. For example, ^ # ^. Π, + Known to use the extended method, or in addition to the 坆 method, at the same time, it can also be determined according to the capacity state. … The frequency of the current that excites the magnetic field. Take the latter point, if you do n’t use this method, or _ _ 4 you do n’t have a method, but also depending on the magic / night surface state of the molten plated metal in the container A function of the current that excites the magnetic field in the inductor.
>用於將金屬條帶熔浸鍍覆的裝置具有至少二個電感器 :設在導引通道的區域在金屬條帶兩㈣，以產生一股電磁 場，以將祕覆金屬保持在容器+，其特徵在具有測量手 段，以測量容器中的熔融金屬的液 J，促曲狀恶，並具有調節手 段，以依該測量手段所測量的液面肤 狀心而疋调卽該電感器 產生的磁場強度值。 該調節手段可有利地作用到在電感器中激發磁場用的 電流的頻率’及/或作用到在電感器中激發磁場用的電流 的振幅，及/或作用到電感器中激發該磁場用的電流的函> The device for the immersion plating of metal strips has at least two inductors: two areas of the metal strips are provided in the area of the guide channel to generate an electromagnetic field to keep the clad metal in the container + It is characterized by having a measuring means to measure the liquid J of the molten metal in the container, and to promote the bending-like evil, and has an adjusting means to adjust the inductor production according to the skin-like heart of the liquid surface measured by the measuring means. Magnetic field strength value. The adjusting means can advantageously act on the frequency of the current for exciting the magnetic field in the inductor and / or the amplitude of the current for exciting the magnetic field in the inductor, and / or the amplitude of the current for exciting the magnetic field in the inductor. Function of current
數走勢。 該裝置有一調節系統，以 本發明的進一步特點係為 最後一點，該調節 器，一個將熔融鍍 一條使熔融鍍覆金 ，以及一個調節器 調節容器中熔融鐘覆金屬的液面高度。 糸統可具有一個溶融錢覆金屬的預置容 覆金屬從預置容器送入該容器中的泵， 屬從容器放出到該預置容器中的流出道 〇 茲配合圖式說明本發明。 10 200408724 【實施方式】 該裝置有一容器（3)，充以熔融鍍覆金屬（2)，舉例而古 ，它可為鋅或鋁。所要鍍覆的金屬條帶（1)(呈一鋼帶形式 )沿運送方向R垂直向上通過該容器（3)。 在此可看出-·點··基本上也可使金屬條帶（1)從上向下 通過容器（3)。 為了要使金屬條帶（1)通過容器（3)，故該容器（3)的底 區域係開放者；此處有一導引通道(4)。為了使熔融鍍覆金 屬（2)不致通過導引通道⑷向下流出，故在金屬條帶⑴兩 側有電感器（5)，它們產生一股磁場，在熔融金屬的體積中 產生立體力量，與該鍍金屬（2)的重力抗衡，因此使導引通 道（4)下方密封。 該電感器（5)係二個對立設置的交流場（Wechselfeid)或 漂移場（Wanderfeld)式電感器，它們在2Hz〜1〇kHz的頻域 操作且構成版垂直於運送方向R的橫向電磁場。單相系 統（交流場雷感器）的較佳頻域在2仟赫〜1〇仟赫之間 ，多相系統用者（例如漂移場電感器）則在2赫〜2仟赫 間。 施覆裝置設有測量手段（6)以測量容器（3)中的熔融鍍覆 金屬⑺的液面狀態高度h。藉由這種測量手段⑹可以將液 面的實際狀態值檢出並送到—調節手段⑺。該調節手段⑺ 控制電感器（5) ’其中該電感器的感應電流的電流大小正好 預設成使得在容器（3)中的鑛覆金屬⑺的現有的液面狀態高 200408724 度h時，產生充分的電磁保持力，使鑛覆金屬⑺不會經導 2道w流出。因此，在鍍覆槽中由於有電感器(5)的電磁 里’因此所引起的液流只小到將鍍覆金屬（2)保持在容器 )中所需者。如此，容器（3)中的鍍覆金屬（2)的槽液表面 較平靜。 上泵（1〇)、一受控制的流出道（U)及一調節器（12)構成， :亥=置容器(9)用於容納熔融鍍覆金屬，該泵用於將鍍覆金 ^預置容器（9)泵人該容器（3)中，該流出道⑴）用於將錢 覆：屬從容器(3)放出到預置容器(9)中，該調節器(12)根據 測ΐ手段(6)所測的液面高度h控制該泵(1〇)及該流出道 依谷态（3)中的鍍覆金屬（2)的液面狀態高度h而定用於 =發電感器（5则的電流，其函數走勢係儲存在該調節手 攸(7)中。因此用於確定感應電流的調節手段（7)的輸入參數 係為液面狀態高度h。這種液面狀態高度利用一調節系統 周t在所要的位面。此調節系統（8)由一預置容器（9)Count the trend. The device has an adjustment system, taking the further feature of the present invention as the last point, the adjuster, one for hot-dip gold plating, and one for adjusting the liquid level of the molten bell-clad metal in the container. The system may have a pump that melts the metal-clad pre-set metal into the container from the pre-set container, which is an outflow channel discharged from the container into the pre-set container. The invention is described with reference to the drawings. 10 200408724 [Embodiment] The device has a container (3), which is filled with melt-plated metal (2). For example, it can be zinc or aluminum. The metal strip (1) (in the form of a steel strip) to be plated passes vertically through the container (3) in the transport direction R. It can be seen here that the-point-basically allows the metal strip (1) to pass through the container (3) from top to bottom. In order for the metal strip (1) to pass through the container (3), the bottom area of the container (3) is an opener; there is a guide channel (4) here. In order to prevent the molten plated metal (2) from flowing downward through the guide channel ⑷, there are inductors (5) on both sides of the metal strip ⑴, which generate a magnetic field and generate a three-dimensional force in the volume of the molten metal. Competing with the gravity of the metal plating (2), the bottom of the guide channel (4) is sealed. The inductor (5) is two oppositely arranged alternating-current (Wechselfeid) or drift-field (Wanderfeld) type inductors, which operate in a frequency range of 2 Hz to 10 kHz and constitute a transverse electromagnetic field whose version is perpendicular to the transport direction R. The preferred frequency domain for single-phase systems (AC field lightning sensors) is between 2 仟 Hz and 10 仟 Hz, and users of multiphase systems (such as drift field inductors) are between 2Hz ~ 2 仟 Hz. The coating device is provided with a measuring means (6) for measuring the height h of the liquid surface state of the hot-dip metal rhenium in the container (3). With this measurement method, the actual state value of the liquid level can be detected and sent to the -adjustment method. The adjustment means ⑺ controls the inductor (5) 'wherein the magnitude of the induced current of the inductor is just preset so that when the existing liquid state of the ore-coated metal ⑺ in the container (3) is higher than 200408724 degrees h, Sufficient electromagnetic holding force, so that the ore-coated metal grate will not flow out through the two channels. Therefore, the liquid flow caused by the electromagnetic field of the inductor (5) in the plating tank is small enough to hold the plating metal (2) in the container). In this way, the surface of the bath of the plated metal (2) in the container (3) is relatively calm. The upper pump (10), a controlled outflow channel (U), and a regulator (12) are composed of: a container (9) for containing molten plated metal, and the pump is used to deposit plated gold ^ The preset container (9) is pumped into the container (3), and the outflow channel (⑴) is used to cover the money: it is discharged from the container (3) into the preset container (9), and the regulator (12) ΐThe level of liquid level h measured by means (6) controls the pump (10) and the outflow channel according to the height of liquid level state h of the plated metal (2) in valley state (3). The current of the device (5), its function trend is stored in the adjusting hand (7). Therefore, the input parameter of the adjusting means (7) for determining the induced current is the height of the liquid surface state h. This liquid surface state The height uses an adjustment system to t at the desired level. The adjustment system (8) consists of a preset container (9)
因此，容器（3)中的液面高度h保持在一所要之預設值 。圖中用不意方式顯示該液面狀態高& h在正常操作時係 在一所要的最小值、與-最大值hmax之間移動。 因此，由谷器（3)中鍍覆金屬（2)的液面高度h的一個有 子在勺值著手，利用該調節手段（？），只將剛好需要的電 :預。又給電感裔⑺，因此產生的磁場可確保錢覆金屬⑺確 貝保持在令σσ (3)中。如此在鍍覆金屬（2)中只造成最小的液 流，因此槽液表面較平靜，故利用此鍍覆裝置可製造較高 12 200408724 品質的鍍覆鋼帶。 【圖式簡單說明】 (一） 圖式部分 第一圖係本發明的一熔浸鍍覆裝置的一實施例的示意 圖，有一條金屬條帶通過該裝置。 (二） 元件代表符號 (1) 金 屬 條帶 ( 鋼 帶 ) (2) 鍍 覆 金屬 (3) 容 器 (4) 導 引 通道 (5) 電 感 器 (6) 測 量 手段 ( 用 於 測 量 液 面狀 態 高 度） ⑺ 調 々/r 即 手段 (8) 用 於調節 液 面 狀 態 高 度 的調 即 系 統 (9) 預 置 容器 (10) 泵 (11) 流 出 道 (12) 調 々/r 即 器 h 容 器 中熔i 融 鍍 覆 金 屬 的 液面 狀 態 高度 hmin 最 小 適用： 狀 態 高 度 h m a x 最 大液面; 狀 態 度 R 運 送 方向Therefore, the height h of the liquid surface in the container (3) is maintained at a desired preset value. In the figure, the liquid level state & h is shown in an unintended manner during normal operation, moving between a desired minimum and -maximum hmax. Therefore, one of the seeds of the liquid surface height h of the plated metal (2) in the trough (3) starts at the value of the spoon, and using this adjustment means (?), Only the electricity that is exactly needed is pre-determined. The inductance is given again, so the generated magnetic field can ensure that the metal clad metal is kept in the order σσ (3). In this way, only the smallest liquid flow is caused in the plated metal (2), so the surface of the bath is relatively calm, so using this plating device can produce a plated steel strip with a higher quality of 12 200408724. [Brief description of the drawings] (I) Schematic part The first drawing is a schematic view of an embodiment of a hot-dip plating device of the present invention, and a metal strip passes through the device. (2) Symbols of components (1) Metal strips (steel strips) (2) Plated metal (3) Containers (4) Guide channels (5) Inductors (6) Measuring methods (for measuring the height of liquid level) ) ⑺ 々 / r is the means (8) The tuned system (9) for adjusting the height of the liquid surface state (9) Preset container (10) Pump (11) Outflow channel (12) 々 / r is the melting point in the container i The height of the liquid surface state hmin of the molten metal is the smallest applicable: the state height hmax the maximum liquid level; the state degree R Conveying direction
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