1307725 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 磁場,以將容器中的鍍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熔浸鍍覆的方法。 【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 的部分,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, 並作活化以與鍍覆金屬接合。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到磨方式除去,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 但隨著鋼帶表面活化,此鋼帶表面對周圍空氣中的氧 :親和力卻會上升。為了防止空氣中的氧在鑛覆程序前合 再跑到鋼帶表面’故將這些鋼帶在__浸人管㈣咖 —k)中從上放入該浸鍍槽中。由於「錄覆金 」呈液I,且人們會利用重力配合吹離装置調整鍛層厚 又 後的程序—直⑽覆金屬完全凝固為止鋼帶會有 1307725 接觸,因此鋼帶在鍍覆容器中須轉向到垂直方向。這點係 利用滾子達成’該/衰子在液態金屬中跑動。此滾子受到 液態鍵覆金屬作用而有很厲害的磨損。因此會造成生產作 業中的停止運轉及全面停擺的情事。 藉著使鑛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。 =表示’該用於導引鋼帶的滾子的表面也要有高品質。在 這些滾子表面的瑕疲-般會造成鋼帶表面損壞,這點也是 S亥設備常常要停止運轉的另一原因。 為了避免此-問題(它係與該在液態鍵覆金屬中跑動 的滚子的問題一起存在),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, 該電感器利用推回(zurtickdrangen)、系動式、或箍縮 (hntiren ’英.plnchlng)的電磁式交流場或漂移場工作 ’這種電磁場將鑛覆容器下方密封住。 廷種解決方案的一個例子見於歐洲專利EP 〇 673 444 。依國際專利w〇㈣3533或日本專利Jp_5_446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EP G 659 897 B1也在-鐘覆設備中使用一電 磁封閉件。在該案中另設有保持手段’藉之可將鍍覆容器 中的熔融鍍復金屬的位面狀態保持恆定。 这些解决方案的缺點在於:該電磁封閉件在熔融鍍覆 中會k成股液流,此液流在密封作用的磁場很強的 1307725 場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 的枝及相關的裝置,藉之可避免上述缺點。特別是儘管 在—種下方開口的鑛覆容器使用電磁式封閉件,槽液表面 仍可儘可能地平靜,這點可產生高品質的鑛覆金屬條帶。 依本發明,這種目的達成之道,係依容器之炫融㈣ 參 金屬的液面的液面狀態而確定由電感器產生之磁場強度值 因此本發明的構想,係依鍍覆容器中的充滿程度而 確定電感器之作密封所需的磁場強度。因此造成—種搞 ’其中電磁場正好正大使得不會有炼融鍍覆金屬通過導; 通道向下流出’但該電磁場仍保持夠小,使槽液表面充彳 ::。在此’本發明係利用一種觀念,即:用於封閉鍍彳 谷益的底開口的電磁場強度和鍍覆容器中的熔融鍍覆金」 的充滿程度很㈣。但上述的進行方式造成之密封作^ 磁場強度不會太強,故可造成平靜的槽液表面。 在此該電磁場可為一種多相漂移場,它係藉著施加· 個頻率在2赫^ 2 ^千絲pq认*** >2^ — 赫間的父 '机電而產生。如不用此方j ,也可使用單相交流場,它係藉施加_個頻率在2什赫, 1 〇仟赫間的交流電產生。 該用於在電感器中激發電磁場的密封作用的 9 1307725 (Reduktor)的電流的振幅係有 μ ΛΛ 力巧地依谷态内的熔融鍍覆金 屬的液面狀態而定作確定。如 t +刼用延種方式,或者除了 知·裡方式外同時另外還可佑空 狀能依今益中的熔融鍍覆金屬的液面 狀態而疋確定該用於在電容 乒a 牡电谷為中激發磁場的電流的頻率。 敢後一點,如不用此方式,或 Λ者除了廷種方式外同時另外 還可依容器内的熔融鍍覆金屬 ^ Α ^ ^ ^ , 97履面狀態而疋,確定該用 、電感IS令激發該磁場的電流的函數走勢。 用於將金屬條帶熔浸鍍覆的 …… 復的裝置具有至少二個電感器 〇X導引通道的區域在金屬停帶)¾ ^ . 碉俅帶兩側,以產生一股電磁 7以將該鑛覆金屬保持在容器中,其特徵在具有測量手 ;’以測量容器中的溶融金屬的液面狀態,並具有調節手 i又生測量手段所測量的液面狀態而定調節該電感器 產生的磁場強度值。 該調節手段可有利地作用到在電感器BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a method for immersing a metal strip by immersion plating, in particular for immersing a steel strip with a metal strip that passes vertically through a a container for accommodating the molten metal and a guiding channel connected to the front, wherein at least two inductors disposed on both sides of the metal strip generate an electromagnetic field to keep the plated metal in the container in the guide In the area of the channel. Furthermore, the invention relates to a method of immersing a metal strip. [Prior Art] A conventional metal strip metal immersion plating apparatus has a portion requiring intensive maintenance, that is, a plating container (which has a device in which it is located). The surface of the metal strip to be plated is cleaned to remove oxide residues prior to plating and activated to bond with the plated metal. For this reason, the surface of the metal strip is treated with a thermal process in a reducing atmosphere prior to plating. Since the oxide layer was previously removed chemically or by grinding, the surface can be activated by this reductive thermal procedure to make it a pure metal element after the thermal process but with the surface of the steel strip activated, the surface of the strip For the oxygen in the surrounding air: the affinity will rise. In order to prevent the oxygen in the air from running back to the surface of the steel strip before the ore-covering process, these steel strips are placed in the immersion plating tank from above in the __ dip tube (four) coffee-k). Since the "recording gold" is in liquid I, and people will use gravity to match the blow-off device to adjust the forging thickness and then the procedure - straight (10) the metal is completely solidified until the steel strip has 1307725 contact, so the steel strip must be in the plating container Turn to the vertical direction. This is achieved by the use of rollers to achieve "the / faint in the liquid metal. This roller is subjected to a metal bond with a liquid bond and is very abrasive. This will result in a cessation of operation and a complete shutdown in the production process. By making the required thickness of the ore-coated metal small (the thickness will vary in the micrometer range), it can meet the surface quality requirements of the steel strip. = indicates that the surface of the roller used to guide the steel strip is also of high quality. The fatigue on the surface of these rollers can cause damage to the surface of the steel strip, which is another reason why the Shai equipment often stops running. In order to avoid this problem (which is associated with the problem of the roller running in the liquid key metal), the plating container with the lower opening is used, and a lower guide region has a guiding passage for the steel strip to pass vertically upward. And use - electromagnetic closure for sealing. Here, the closure is an electromagnetic inductor that utilizes an electromagnetic field or a drift field that is pushed back, tuned, or pinched (the httiren's electromagnetic field) Sealed under the container. An example of a tanning solution can be found in the European patent EP 673 673 444. The solution of the international patent w〇(4)3533 or Japanese patent Jp_5_446 also uses an electromagnetic closure to seal the underside of the plating vessel. The European patent EP G 659 897 B1 also uses an electromagnetic closure in the bell-cladding apparatus. In this case, a holding means is additionally provided, whereby the state of the plane of the molten plated metal in the plating container can be kept constant. The disadvantage of these solutions is that the electromagnetic closure will form a stream of liquid during the melt plating, which will cause a wavy motion on the surface of the bath at a strong magnetic field of 1307725. This has a detrimental effect in the manufacture of high quality coated metal strips. SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a branch and associated apparatus for immersing a metal strip, thereby avoiding the above disadvantages. In particular, the surface of the bath can be as calm as possible, even though the electromagnetic closure is used in the underlying open-mouth container, which results in a high quality metallized strip. According to the present invention, the object is achieved by determining the magnetic field strength value generated by the inductor according to the liquid level state of the liquid surface of the container (4), and thus the concept of the present invention is based on the plating container. The degree of fullness determines the strength of the magnetic field required for the inductor to seal. Therefore, it is caused that the electromagnetic field is just right so that no refractory plating metal passes through the channel; the channel flows downwards' but the electromagnetic field remains small enough to fill the surface of the bath. Here, the present invention utilizes the concept that the electromagnetic field strength for closing the bottom opening of the rhodium-plated grain and the molten gold plating in the plating container are very high (four). However, the above-mentioned method of making the seal does not make the magnetic field strength too strong, so it can cause a calm bath surface. Here, the electromagnetic field can be a multi-phase drift field, which is generated by applying a frequency of 2 Hz ^ 2 ^ kilograms of pq *** > 2 ^ - 赫 parental electromechanical. If this side j is not used, a single-phase AC field can also be used, which is generated by applying an alternating current of 2 Hz to 1 Hz. The amplitude of the current of 9 1307725 (Reduktor) used for the sealing action of the electromagnetic field in the inductor is determined by the liquid state of the molten plated metal in the valley state. For example, if t + 刼 is used in the cultivating mode, or in addition to the knowledge and the lining method, it can also be used to determine the liquid state of the molten metal to be coated in the current state. The frequency of the current that excites the magnetic field. If you don't need this method, you can use the method of the inductor, the inductor, and the inductor, depending on the state of the molten metal, 除了 ^ ^ ^ , 97 in the container. The function of the current of the magnetic field. The device for immersing the metal strip is immersed in a device having at least two inductors 〇X guiding channels on the metal stop band 3⁄4 ^ . Holding the metallized metal in a container, which is characterized by having a measuring hand; 'to measure the liquid level state of the molten metal in the container, and adjusting the inductance by adjusting the liquid level measured by the measuring means and measuring means The value of the magnetic field strength produced by the device. The adjustment means can advantageously act on the inductor
電流的頻率,及/赤从田+ m J 乍用到在電感器中激發磁場用的電流 、 虽’及/或作用到電感中泡 I q +Θ m 數走勢。 電感器中激發该磁场用的電流的函 本發明的進一舟姓& & 步特點係為:該裝置有-調節系統,以 调節容器中熔融鍍覆全凰从、六二^ — 金屬的液面尚度。最後一點,該調節 系統可具有一個熔融鍍覆 復生屬的預置谷器,—個將溶融鍍 覆金屬從預置容器误…。[ΐ 以谷益中的泵,一條使熔融鍍覆金 到該預置容器中的流出道,以及一個調節器 〇 明 茲配合圖式說明本發 10 1307725 【實施方式】 一該裝置有一容器(3) ’充以熔融鍍覆金屬⑺,舉例而言 ’它可為鋅或銘。所要鑛覆的金屬條帶⑴(呈一鋼帶形式 )沿運送方向R垂直向上通過該容器(3)。 在此可看出一點:基本上也可使金屬條帶(丨)從上向下 通過容器(3)。 為了要使金屬條帶⑴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⑷。為了使炫融鍵覆纟 參 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(Wechselfeld)或 漂移場(Wanderfeld)式電感器,它們在2Hz〜1〇kHz的頻域 操作且構成一股垂直於運送方向R的橫向電磁場。單相系 統(交流場雷感器)用的較佳頻域在2仟赫〜1〇仟赫之間 籲 ,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(2)的液面狀態高度h。藉由這種測量手段可以將液 面的實際狀態值檢出並送到一調節手段(7)。該調節手段(7) 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)中的鍍覆金屬(2)的現有的液面狀態高 11 1307725 jc h時產生充分的電磁保持力,使鑛覆金屬(2)不會經導 弓丨通道(4)流出。因此,在鍍覆槽中由於有電感器(5)的電磁 力量,因此所引起的液流只小到將鍍覆金屬(2)保持在容器 ㈠)中所需者。如此,容器(3)中的鍍覆金屬(2)的槽液表面 較平靜。 依容器(3)中的鍍覆金屬(2)的液面狀態高度11而定用於 激發電感器(5)所用的電流,其函數走勢係儲存在該調節手 奴(7)中。因此用於確定感應電流的調節手段(乃的輸入參數 係為液面狀態高度h。這種液面狀態高度利用一調節系統 (8)调整在一所要的位面。此調節系統由一預置容器(9) 泵(1〇)、一受控制的流出道(11)及一調節器(12)構成, 預置谷器(9)用於谷納熔融鍵覆金屬,該泵用於將鑛覆金 屬從預置谷态(9)泵入該容器(3)中,該流出道(11)用於將鍍 覆金屬從容器(3)放出到預置容器(9)中,該調節器(12)根據 、·!里手奴(6)所測的液面高度h控制該泵(1〇)及該流出 (11)。 各器(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度h在正常操作時係 在所要的最小值hmin與-最大值h—之間移動。 匕由各器(3)中鍍覆金屬(2)的液面高度h的一個有 效存在的信基主 ., 、 者手,利用該調節手段(7),只將剛好需要的電 洁·預設給電4 @ r ςm .., 级器(5) ’因此產生的磁場可確保鍍覆金屬(2)確 實保持在宏 15 (3)中。如此在鍍覆金屬(2)中只造成最小的液 流,因此、浪± 曰收表面較平靜,故利用此鍍覆裝置可製造較高 12 1307725 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)The frequency of the current, and / 赤 from the field + m J 乍 used to inductive magnetic field in the inductor, although 'and / or act on the inductor bubble I q + Θ m number trend. The function of the current in the inductor for exciting the magnetic field is characterized by: the device has an adjustment system for adjusting the molten plating of the container in the container, the six-two metal The liquid level is still good. Finally, the conditioning system can have a pre-paste of a molten-plated regenerative genus, which will confuse the molten metal from the preset container. [ΐ 谷 谷 益 泵 泵 泵 泵 泵 泵 泵 泵 泵 泵 泵 泵 泵 泵 泵 泵 泵 泵 泵 泵 泵 泵 泵 泵 泵 泵 泵 泵 泵 泵 泵 泵 泵 泵 泵 泵 泵 泵 泵 泵 泵 泵 泵 泵 泵 泵 泵 泵 泵' Filled with molten metal (7), for example 'it can be zinc or Ming. The metal strip (1) to be ore-covered (in the form of a steel strip) passes vertically through the container (3) in the transport direction R. One point can be seen here: basically the metal strip (丨) can also pass through the container (3) from top to bottom. In order to pass the metal strip (1) through the container (3), the bottom area of the container (3) is open; there is a guiding channel (4). In order to make the glare bond cover (2) not flow downward through the guide channel (4), there are inductors (5) on both sides of the metal strip (1), which generate a magnetic field, which is generated in the volume of the molten metal. The three-dimensional force counterbalances the gravity of the metallization (2), thus sealing the guide channel (4) below. The inductor (5) is a two-sided alternating field (Wechselfeld) or drift field (Wanderfeld) inductor operating in the frequency domain of 2 Hz to 1 〇 kHz and forming a transverse electromagnetic field perpendicular to the transport direction R. . The preferred frequency domain for single-phase systems (AC field lightning sensors) is between 2 kHz and 1 〇仟, and the multiphase system users (such as drift field inductors) are between 2 Hz and 2 kHz. . The coating device is provided with a measuring means (6) for measuring the liquid level state height h of the molten plating metal (2) in the vessel (3). By means of this measurement, the actual state value of the liquid level can be detected and sent to an adjustment means (7). The adjusting means (7) controls the inductor (5), wherein the current of the induced current of the inductor is exactly preset such that the existing liquid level of the plated metal (2) in the container (3) is high 11 1307725 When jc h, sufficient electromagnetic holding force is generated, so that the ore-covered metal (2) does not flow out through the guide bow channel (4). Therefore, due to the electromagnetic force of the inductor (5) in the plating tank, the resulting flow is only small enough to hold the plated metal (2) in the container (1). Thus, the surface of the bath metal (2) in the vessel (3) is relatively calm. The current used to excite the inductor (5) is determined by the level of the liquid state of the plated metal (2) in the vessel (3), and its function is stored in the regulator slave (7). Therefore, the adjustment means for determining the induced current (the input parameter is the liquid level state height h. This liquid level state is adjusted by a regulating system (8) at a desired plane. This adjustment system is preset by a preset The container (9) is composed of a pump (1), a controlled outflow channel (11) and a regulator (12), and the preset grainer (9) is used for the glutamate fused metal, the pump is used for the mine. The metal coating is pumped from the preset valley state (9) into the vessel (3) for discharging the plated metal from the vessel (3) into the preset vessel (9), the regulator ( 12) Control the pump (1〇) and the outflow (11) according to the liquid level h measured by the hand slave (6). The liquid level h in each unit (3) is maintained at a predetermined level. In the set value diagram, the liquid level state height h is displayed between the desired minimum value hmin and the maximum value h during normal operation. 镀 The metal (2) is plated by each device (3) An effective existing base of the liquid level h, the hand, using this adjustment means (7), only the just needed electric cleaning · preset power 4 @ r ςm .., class (5) The resulting magnetic field ensures that the plated metal (2) does remain in the macro 15 (3). This results in only a minimum of liquid flow in the plated metal (2), so the wave ± 曰 surface is calmer, so use The plating device can produce a plated steel strip with a higher quality of 12 1307725. [Simple description of the drawings] (1) The first part of the drawing is a schematic view of an embodiment of a melt-dip coating device of the present invention, A metal strip passes through the device. (2) Component symbol (1) Metal strip (steel strip)
(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) (7) 調節手段 (8) 用於調節液面狀態高度的調節系統 (9) 預置容器(2) Plated metal (3) Container (4) Guide channel (5) Inductor (6) Measuring means (for measuring the liquid level height) (7) Adjustment means (8) For adjusting the liquid level height Adjustment system (9) preset container
(10) 泵 (11) 流出道 (12) 調節器 h 容器中熔融鍍覆金屬的液面狀態高度 hmin 最小適用狀態高度 hmax 最大液面狀態高度 R 運送方向 13(10) Pump (11) Outflow path (12) Regulator h Level of liquid level of molten metal in the container hmin Minimum applicable height hmax Maximum level of liquid state R Direction of transport 13