1274085 玖、發明說明： 【發明戶斤屬之技術領域】 發明領域 本發明係有關於一種使帶狀鋼板連續地浸潰於金屬電 5 鍍浴而電鍍熔融金屬之連續熔融金屬電鍍設備。 習知技術 以往，連續設置於加熱帶、氣體強制對流式之冷卻帶 之連續熔融金屬電鍍設備是公知的。又，眾所皆知，藉使 10 帶狀鋼板連續地浸潰於金屬電鍍浴而於帶狀鋼板進行連續 熔融金屬電鍍時，係以將進入金屬電鍍浴内之帶狀鋼板高 精度地調節成大致金屬電鍍浴溫度為佳。又，有關於該連 續進入金屬電鍍浴内之帶狀鋼板長向之溫度之不均一性、 及寬度方向之溫度之不均一性，一般皆以± 5°c左右為金屬 15 電鍍於品質上、溫度精度上之上限。 前述冷卻帶中，例如，欲於帶狀不鏽鋼板電鍍Zn時， 為了使該鋼板冷卻至約46(TC，喷射100〜150°C之氣體至帶 狀鋼板，由於該帶狀鋼板與喷射氣體兩者之温差大，因此， 該帶狀鋼板之長向及寬度方向上溫度之不均一性容易超過 20 前述溫度精度上之上限。 因此，已有為了縮小前述溫度之不均一性，而設置了 連接於前述冷卻帶之輻射式之板溫保持室的連續熔融金屬 電鍍設備。 發明欲解決之課題 1274085 前述習知之設置有輻射式之板溫保持室之連續炼融金 屬電鑛設備中，由於该板溫保持室為輕射式，因此，與帶 狀鋼板之溫度控制有關的反應性不佳，且，欲使帶狀鋼板 具有所需之溫度精度時，該板溫保持室過長，需要大之設 5 置空間。 【發明内容】 發明概要 本發明係以解決前述習知問題為課題而製成者，且， 係提供一種連續熔融金屬電鍍設備，該連續熔融金屬電鍍 1〇設備係長度短，有關於帶狀鋼板之溫度控制方面，反應性 良好，可使帶狀鋼板於溫度不均一性小之狀態下維持於預 疋溫度。 解決課題之手段 為了解決别述課題，本發明係包含有電艘浴槽及板溫 保持至，4述電鍍浴槽係收容有加熱保持於設定溫度之金 屬電鍍浴者，而前述板溫保持室，係朝冷卻至可進行熔融 金屬電鍍之溫度而進入之帶狀鋼板噴射氣體，且使前述帶 狀鋼板通過該氣體強制對流之環境氣體中，並朝前述金屬 加電錢办連續地送出，同時前述噴射之氣體係調整成使前述 20讀鋼板保持在適於浸潰在前述金屬電鍵浴後進行溶融金 屬電鑛之溫度。 【實施方式】 發明之實施形態 接著’依圖示說明本發明之實施形態。 a^/4〇8s 續炉第1圖係顯不本發明之連續熔融金屬電鍍設備1，該連 後各一金屬電錢設備1，例如，係連續設置於退火爐之加熱 t、；人浴卩帶 、 ^ ^ ’且具有帶狀鋼板S，諸如冷軋鋼板連續地依序 σ之板酿保持室11、電鍍浴槽導入空間部12、管嘴部13 及電鍍浴槽14。 板溫保持室11内部中，多數朝橫向間隔地整列配置之 、 ’係於鋼板S上下2列保持距離地對向配置，以可噴 、、氣體至帶狀鋼板s，且使氣體於板溫保持室11内強制對 〇 1〇 15 :又’自板溫保持室延伸出氣體循環通路22，該氣體循 长通路22係具有加熱機構之加熱器或燃燒器，且係經過具 有、部機構之冷卻機之加熱冷卻部23、壓力控制閥24及送 風機25，連接於前述各個喷嘴21。且，前述加熱機構係藉 使用閘流電晶體或流量調節閥之加熱調節機構26進行加熱 強度之调郎，而前述冷卻機構係藉例如使用冷氣機之冷卻 調節機構27進行冷卻強度之調節。 於電鍍浴槽導入空間部12内建導輥28，藉導輥28使由 板溫保持室11進入之帶狀鋼板S轉換方向，朝接續之管嘴部 13送出。 管嘴部13，其前端部係位於溶融有Zn、A1等金屬之電 20鑛浴槽14内之金屬電鍵浴29内，係使通過板溫保持室η及 電錢浴槽導入空間部12之帶狀鋼板S浸潰於金屬電鏟浴29。 電鍍浴槽14内，設置有同步輥31，以使浸潰於金屬電 鍵浴29中，且經過電鍵處理之f狀鋼板S透過同步輕31朝上 方引導而送出，進入下一步驟。 7 1274085 另外，於電鍍浴槽導入空間部u設置板溫檢測器Μ， 於電鑛浴槽顺置電㈣溫度㈣的，於加埶冷卻仰 與Μ力氣體循環通路22之部分設置氣體溫 度檢測器53 ’及料風機25與板溫保持室u之狀氣體循 5 10 15 環通路22之部分設置氣壓檢測㈣。板溫檢測㈣檢測正 要進入金屬電鍍浴29之帶狀鋼板s之溫度，並將表示測出之 鋼板溫度1之溫度信號輸人溫度指示調節計55。又，金厲 電鍍浴29係藉圖未示 之電鑛浴加熱機構設定溫度，例如，BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a continuous molten metal plating apparatus for continuously immersing a strip-shaped steel sheet in a metal electroplating bath to electrolyze molten metal. Conventional Technology Conventionally, a continuous molten metal plating apparatus which is continuously provided in a heating belt or a gas forced convection type cooling belt is known. Further, it is well known that when a strip of steel strip is continuously immersed in a metal plating bath and continuous molten metal plating is performed on a strip-shaped steel sheet, the strip-shaped steel sheet which enters the metal plating bath is precisely adjusted to The temperature of the metal plating bath is generally good. Further, regarding the temperature non-uniformity of the strip-shaped steel sheet continuously entering the metal plating bath and the temperature non-uniformity in the width direction, the metal 15 is generally plated on the quality at about ±5 ° C. The upper limit of temperature accuracy. In the cooling belt, for example, when Zn is to be plated on a strip-shaped stainless steel plate, in order to cool the steel sheet to about 46 (TC, a gas of 100 to 150 ° C is sprayed to the strip-shaped steel sheet, since the strip-shaped steel sheet and the jet gas are both Since the temperature difference is large, the temperature unevenness in the longitudinal direction and the width direction of the strip-shaped steel sheet easily exceeds the upper limit of the temperature accuracy of 20. Therefore, in order to reduce the unevenness of the temperature, a connection is provided. The continuous molten metal plating apparatus of the radiant type plate temperature maintaining chamber of the aforementioned cooling belt. The problem to be solved by the invention is 1274085. The above-mentioned conventional continuous smelting metal electric ore equipment provided with a radiant type plate temperature maintaining chamber, due to the board The temperature maintaining chamber is of a light-emitting type, and therefore, the reactivity associated with the temperature control of the strip-shaped steel sheet is not good, and if the strip-shaped steel sheet is to have a desired temperature accuracy, the sheet temperature maintaining chamber is too long, and the need for the large SUMMARY OF THE INVENTION The present invention has been made in order to solve the aforementioned problems, and provides a continuous molten metal plating apparatus, which is continuous. The molten metal plating 1〇 equipment has a short length, and has good reactivity with respect to the temperature control of the strip steel plate, so that the strip steel plate can be maintained at the pre-twisting temperature in a state where the temperature unevenness is small. In another aspect, the present invention includes a battery bath and a panel temperature, wherein the plating bath contains a metal plating bath that is heated and maintained at a set temperature, and the plate temperature holding chamber is cooled to be meltable. a strip-shaped steel sheet that enters at a temperature of metal plating, injects a gas, and the strip-shaped steel sheet is forcedly convected by the gas, and is continuously sent to the metal charging device, and the gas system of the jet is adjusted so that The 20-read steel sheet is maintained at a temperature suitable for melting the metal ore after being immersed in the metal key bath. [Embodiment] Embodiments of the invention Next, an embodiment of the invention will be described with reference to the drawings. a^/4〇8s continued Figure 1 of the furnace shows a continuous molten metal plating apparatus 1 of the present invention, and the metal electric money apparatus 1 is connected to the metal, for example, continuously. The heating of the furnace t, the human bath belt, ^ ^ ' and the strip steel plate S, such as the cold-rolled steel sheet, the slab holding chamber 11 in sequence, the plating bath introduction space portion 12, the nozzle portion 13 and the plating In the interior of the plate temperature holding chamber 11, a plurality of the steel sheets are arranged in a line in the horizontal direction, and are disposed opposite to each other in the upper and lower rows of the steel sheet S so as to be sprayable, gas, and a strip-shaped steel sheet s. Forcibly facing the 板1〇15 in the plate temperature holding chamber 11: and 'extending the gas circulation passage 22 from the plate temperature maintaining chamber, the gas circulating passage 22 is a heater or a burner having a heating mechanism, and The heating and cooling unit 23, the pressure control valve 24, and the blower 25 of the cooling unit of the unit are connected to the respective nozzles 21. The heating mechanism is heated by the heating adjustment mechanism 26 using a thyristor or a flow regulating valve. The cooling mechanism is adjusted by the cooling adjustment mechanism 27 using an air conditioner, for example. The guide roller 28 is built in the plating bath introduction space portion 12, and the guide roller 28 shifts the direction of the strip-shaped steel sheet S entering the sheet temperature holding chamber 11 to the succeeding nozzle portion 13. The tip end portion 13 is located in the metal key bath 29 in the electric 20 ore bath 14 in which the metal such as Zn or A1 is melted, and is introduced into the space portion 12 through the plate temperature holding chamber η and the electric money bath. The steel sheet S is immersed in the metal electric shovel bath 29. In the plating bath 14, a timing roller 31 is provided so as to be immersed in the metal key bath 29, and the f-shaped steel sheet S subjected to the key processing is guided upward by the synchronous light 31, and is sent to the next step. 7 1274085 In addition, a plate temperature detector 设置 is provided in the plating bath introduction space portion u, and the electric (4) temperature (4) is placed in the electric ore bath, and a gas temperature detector 53 is provided in a part of the enthalpy cooling yaw and the yoke gas circulation path 22. 'And the fan 5 and the plate temperature holding chamber u follow the gas 10 5 15 ring passage 22 to set the air pressure detection (4). The panel temperature is detected (4) to detect the temperature of the strip-shaped steel sheet s which is entering the metal plating bath 29, and the temperature signal indicating the measured steel sheet temperature 1 is input to the temperature indicating regulator 55. Moreover, the Jin Li plating bath 29 sets the temperature by means of an electric mine bath heating mechanism not shown, for example,
Zn電鑛浴時維持於約4耽，藉電鑛浴溫度檢測抓檢測其 金屬電鑛浴29之溫度，並將表示測出之電錢浴溫度L之溫 度信號輸人運算器56。於該運算器56中基於測出之金屬電 鍵冷溫度了2 ’例如對了2增加—定溫度抓，藉此算出設定 板皿度I (― T2 + 2〇C)作為進入金屬電鍍浴29之帶狀鋼板 s之適當溫度’並將表示該設定板溫度了2，之設定板溫度信 號輸入溫度指示調節計55。 由溫度指不調節計55輸入表示鋼板溫度几與設定板溫 度I之溫度差— 之溫度偏差信號至運算器57 及58 °於運#器57中，基於溫度差ATa，求出所需之氣體 脈度I ’並將表示該氣體溫度乃之溫度信號輸入溫度指示 #59。該溫度指示調節計财，亦輸人有表示藉氣體 酿度k測器53測出之氣體循環通路22内之氣體溫度A之溫 度信號’並將表示所需之氣體溫度T3與測出之氣體溫度τ4 之1度差= TO之溫度偏差信號輸入控制機構 61 °且’由該控制機構61判斷應該加熱還是冷卻由噴嘴21 20 1274085 喷出之氣體，即氣體循環通路22内之氣體，並基於該判斷 …果丄由控制機構61輪人用以使前述加熱機構增減加熱強 度之，或用以使前述冷卻機構增減冷卻強度之信號至 加熱調節機構26，或冷卻調節機構27任-者，以使溫度差 5 ATb為零’且氣體循環通路22内之氣體溫度I。係保持於^， 一△t$tgst2’ + ^t成立之範圍内，例如，丁2，—15它^ TGST2’+i5°c之範圍内。 另外，於運算器58中，求出對應溫度差ATa之設定壓 力P〇，且輸入表示該設定壓力Pq之壓力信號至壓力指示調 10節計62。於該壓力指示調節計㈣，輸入有表示藉氣壓檢 測器54測出之氣體循環通路22内之氣壓I之壓力信號，並 輸入表示設定壓力P〇與測出之氣壓Pi之差壓△?( = !>〇 —Ρι) 之壓力偏差^號至控制機構63。且，藉來自控制機構Μ之 控制信?虎進行差壓壓力控制閥Μ之開度調節、或透過旋轉 15數控制為（VVVF)64進行送風機25之驅動馬達之旋轉數控 制以使該ΔΡ為零，將氣體循環通路22内之氣體壓力保持於 適當值，而透過該氣體壓力將帶狀鋼板S之溫度保持於預定 範圍内。 更詳述日守，壓力控制閥24之閥驅動部之反應速度係較 20运風機25之驅動馬達之反應速度快，於由控制機構。向壓 力控制閥24及送風機25輸出控制信號之初期之階段，基於 亥拴制#唬立即反應者僅壓力控制閥24。因此，氣壓檢測 =所/則出之檢測壓力過高時，藉使壓力控制閥24之開度 軒減小，使測出氣壓ρι逐漸降低。且，檢測氣壓Pi達到 1274085 設定壓力p〇時，使壓力控制閥54之開度為基準開度之狀 態，例如開度約70%之狀態，即，逐漸朝開方向移行，且 同時使送風機25之驅動馬達之旋轉數逐漸增加以使壓力不 會隨之變化，即藉送風機補償壓力控制閥24所造成之壓力 5變動量。相對於此，藉氣壓檢測器Μ測出之檢測氣壓過低 時，藉使壓力控制閥24之開度逐漸增大，使檢測氣壓5逐 漸上升。且，檢測氣壓Pi達到設定壓力p〇時，使壓力控制 閥24之開度為基準開度之狀態，例如開度約7〇%之狀態’ 即，逐漸朝閉方向移行，且同時使送風機25之驅動馬達之 10 旋轉數逐漸減少以使壓力不會隨之變化，即藉送風機25補 償壓力控制閥24所造成之壓力變動量。 如前述，使壓力控制閥24之開度一旦減小或增大後回 到基準開度之狀態，係為了於後檢測壓力Pi有所變動時， 可藉反應性佳之壓力控制閥24迅速地對應。換言之，壓力 15控制閥24之開度保持為小時，當檢測氣壓Ρ!過度上升時係 無法對應之，或前述開度保持為大時，檢測氣壓Ρι過度下 降時會無法對應。 此外，本發明係不限定於設置有壓力控制閥24與送風 機25兩者，亦包含僅設置壓力空閱顺送風機25中任一者 20 之連續炼融金屬電鍍設備。 如則达，於該連續炫融金屬電鑛設備丄中，以大致電錢 浴溫度進入至板溫保持室u之鋼板s，係藉調節喷似喷出 之預疋/皿度之氣壓，於強制對流之氣體之環境中維持於適 當溫度’而經過電鍍浴槽導入空間和及管嘴卯，浸潰 10 1274085 於加熱至預定溫度之電_29，進行純金屬電鍛，且由 金屬電鍍浴29送出，進入下一步驟。 此外，本發明不—定需為附屬於退火爐之設備’且除 了 Zn電錢以卩卜’亦可為例如八丨電鍍用設備。 5 又，第1圖中顯示了橫型配置之設備， 含豎型配置之設備。 然而本發明亦包 壓力控制系統並不 内使氣體強制對流 且，本發明中之循環氣體之溫度、 限定於前述結構，亦可為於板溫保持室 之結構。 10 15 發明之效果 由以上說明可清楚明白，本發明係包含有電鍍浴槽、 板溫保持室之結構’前述電鑛浴槽係收容有加熱保持於設 定溫度之金屬植浴者’而前述板溫保持㈣朝冷卻至^ 進行熔融金屬電鍍之溫度且進入之帶狀鋼板噴射氣體，並 使w述帶狀鋼板通過該使氣體強制對流之環境中，而朝前 述=鍍金屬浴連續地送出，同時前述噴射之氣體係調= 使前述帶狀鋼板保持在適於浸潰在前述金屬電鍍浴後進行 溶融金屬電鑛之溫度。 如前述，設置於電鍍浴槽入側之板溫保持室為氣體強 2〇制對流式者，因此，有關於此之帶狀鋼板之溫度控制方面， 反應性良好，可縮短板溫保持室全長，且，可使帶狀鋼板 於溫度之不均一性少之狀態下維持在所需溫度並使帶狀鋼 板導入電錢浴槽，可發揮提升金屬電鍍之質之效果。 【圖式簡單說明】 1274085 第1圖係顯示本發明之連續熔融金屬電鍍設備之整體 結構之圖。 【圖式之主要元件代表符號表】 1.. .連續熔融金屬電鍍設備 11.. .板溫保持室 12·.·電鍍浴槽導入空間部 13.. .管嘴部 14…電鍍浴槽 21…喷嘴 22…循環通路 23.. .加熱冷卻部 24··.壓力控制(調節)閥 25.. .送風機 26…加熱調節機構 27.. .冷卻調節機構 28…導棍 29.. .電鍍浴 31.. .同步輥 51.. .板溫檢測器 52.. .電鍍浴溫度檢測器 53.. .氣體溫度檢測器 54.. .氣壓檢測器 55···溫度指示調節計 56.. .運算器 1274085 57.. .運算器 58.. .運算器 59.. .溫度指示調節計 61.. .控制機構 62…壓力指示調節計 63.. .控制機構 64.··旋轉數控制器 5.. .帶狀鋼板 TV·.鋼板溫度 T2…測出之電鍍浴溫度 丁2’...設定板溫度 τ3...理想之氣體溫度 Τ4...測出之氣體溫度 Ρ〇.··設定壓力 Pi...測出之氣體壓力The Zn electric mine bath is maintained at about 4 Torr, and the temperature of the metal electric ore bath 29 is detected by the temperature detection of the electric mine bath, and the temperature signal indicating the measured electric bath temperature L is input to the arithmetic unit 56. In the arithmetic unit 56, based on the measured metal key cold temperature 2', for example, 2 increase-fixed temperature grip, thereby calculating the set plate degree I ("T2 + 2〇C" as the entry into the metal plating bath 29 The appropriate temperature of the strip steel plate s' will indicate that the set plate temperature is 2, and the set plate temperature signal is input to the temperature indicating adjuster 55. The temperature deviation signal indicating the temperature difference between the steel sheet temperature and the set plate temperature I is input from the temperature index adjustment meter 55 to the arithmetic unit 57 and 58°, and the required gas is obtained based on the temperature difference ATa. The pulse I' and the temperature signal indicating the temperature of the gas is input to the temperature indication #59. The temperature indicates that the adjustment is calculated, and the temperature signal A indicating the gas temperature A in the gas circulation path 22 measured by the gas brewing detector 53 is also input and will indicate the required gas temperature T3 and the measured gas. The temperature deviation signal of the temperature τ4 = TO is input to the control mechanism 61 ° and 'the control mechanism 61 determines whether the gas ejected by the nozzles 21 20 1274085, that is, the gas in the gas circulation path 22, should be heated or cooled, and based on The determination is made by the control mechanism 61 to increase or decrease the heating intensity of the heating mechanism, or to increase or decrease the cooling intensity signal to the heating adjustment mechanism 26, or the cooling adjustment mechanism 27 So that the temperature difference 5 ATb is zero 'and the gas temperature I in the gas circulation path 22 . The system is maintained within the range of ^, Δt$tgst2' + ^t, for example, within the range of D2, -15, TGST2'+i5°c. Further, in the arithmetic unit 58, the set pressure P 对应 corresponding to the temperature difference ATa is obtained, and the pressure signal indicating the set pressure Pq is input to the pressure command modulo meter 62. The pressure indicating regulator (4) inputs a pressure signal indicating the air pressure I in the gas circulation path 22 measured by the air pressure detector 54, and inputs a differential pressure Δ? indicating the set pressure P〇 and the measured air pressure Pi? = !>〇—Ρι) The pressure deviation ^ is to the control mechanism 63. And, by the control signal from the control unit, the tiger performs the adjustment of the differential pressure control valve 、, or the rotation number is controlled by (VVVF) 64 to control the rotation number of the drive motor of the blower 25 so that the ΔΡ is Zero, the gas pressure in the gas circulation passage 22 is maintained at an appropriate value, and the temperature of the steel strip S is maintained within a predetermined range by the gas pressure. More specifically, the reaction speed of the valve driving portion of the pressure control valve 24 is faster than that of the driving motor of the 20-operating fan 25, and is controlled by the control mechanism. At the initial stage of outputting the control signal to the pressure control valve 24 and the blower 25, the reactor is only the pressure control valve 24 based on the immediate reaction. Therefore, when the detected pressure of the air pressure detecting = is too high, the opening degree of the pressure control valve 24 is decreased, and the measured air pressure ρι is gradually lowered. Further, when the detected air pressure Pi reaches 1,274,085, the set pressure p〇, the opening degree of the pressure control valve 54 is set to the state of the reference opening degree, for example, the state of the opening degree is about 70%, that is, gradually moving toward the opening direction, and simultaneously the blower 25 is caused. The number of rotations of the drive motor is gradually increased so that the pressure does not change, that is, the amount of pressure 5 fluctuation caused by the pressure control valve 24 is compensated by the blower. On the other hand, when the detected air pressure is too low by the air pressure detector, the opening degree of the pressure control valve 24 is gradually increased, and the detected air pressure 5 is gradually increased. When the detected air pressure Pi reaches the set pressure p〇, the opening degree of the pressure control valve 24 is set to the state of the reference opening degree, for example, the state of the opening degree of about 7〇%, that is, gradually moving toward the closing direction, and simultaneously the blower 25 is provided. The number of rotations of the drive motor 10 is gradually reduced so that the pressure does not change, that is, the blower 25 compensates for the amount of pressure fluctuation caused by the pressure control valve 24. As described above, when the opening degree of the pressure control valve 24 is decreased or increased and returned to the reference opening degree, in order to change the post-detection pressure Pi, the pressure control valve 24 having a good reactivity can be quickly responded to. . In other words, the opening degree of the pressure control valve 24 is kept to be small, and when the detection of the air pressure Ρ! is excessively increased, it is impossible to cope with it, or when the opening degree is kept large, the detection air pressure may not correspond when it is excessively lowered. Further, the present invention is not limited to the provision of both the pressure control valve 24 and the blower 25, and includes a continuous refining metal plating apparatus in which only one of the pressure idler blowers 25 is provided. For example, in the continuous smelting metal electric ore equipment, the steel plate s entering the plate temperature holding chamber u at a temperature of the electric money bath is adjusted by the pressure of the pre-equivalent/dish of the spray. The atmosphere of the forced convection gas is maintained at an appropriate temperature' while passing through the plating bath to introduce the space and the nozzle 卯, dipping 10 1274085 to the electric _29 heated to the predetermined temperature, performing pure metal electric forging, and the metal plating bath 29 Send it out and move on to the next step. Further, the present invention is not necessarily required to be an apparatus attached to an annealing furnace, and may be, for example, an apparatus for electroplating, in addition to Zn. 5 Also, Figure 1 shows the horizontal configuration of the device, including the vertical configuration of the device. However, the present invention also includes a pressure control system that does not force the convection of the gas. The temperature of the circulating gas in the present invention is limited to the above structure, and may be a structure of the plate temperature maintaining chamber. 10 15 Effects of the Invention As apparent from the above description, the present invention includes a structure of an electroplating bath and a plate temperature maintaining chamber. The electric ore bath system houses a metal bather that is heated and maintained at a set temperature. (4) spraying the gas to the strip-shaped steel sheet which is cooled to the temperature at which the molten metal is electroplated, and the strip-shaped steel sheet is passed through the environment for forcibly convecting the gas, and is continuously sent toward the above-mentioned metal plating bath, while the aforementioned The gas system of the jet is adjusted to maintain the temperature of the molten steel ore after being immersed in the aforementioned metal plating bath. As described above, the plate temperature holding chamber provided on the inlet side of the plating bath is a gas-converging convection type. Therefore, the temperature control of the strip-shaped steel sheet is good in reactivity, and the length of the plate temperature maintaining chamber can be shortened. Further, the strip-shaped steel sheet can be maintained at a desired temperature in a state where the temperature unevenness is small, and the strip-shaped steel sheet can be introduced into the electric money bath, thereby exhibiting an effect of improving the quality of metal plating. BRIEF DESCRIPTION OF THE DRAWINGS 1274085 Fig. 1 is a view showing the overall structure of a continuous molten metal plating apparatus of the present invention. [Main component representative symbol table of the drawing] 1.. Continuous molten metal plating equipment 11. Plate temperature holding chamber 12·. Electroplating bath introduction space section 13.. Nozzle part 14... Electroplating bath 21... Nozzle 22...circulation passage 23: heating and cooling unit 24·.. pressure control (regulation) valve 25. blower 26... heating adjustment mechanism 27.. cooling adjustment mechanism 28... guide roller 29.. plating bath 31. Synchronous Roller 51.. Plate Temperature Detector 52.. Plating Bath Temperature Detector 53.. Gas Temperature Detector 54.. Barometric Pressure Detector 55··· Temperature Indicating Regulator 56.. Operator 1274085 57.. . Arithmetic 58.. Operator #59.. Temperature indicating regulator 61.. Control mechanism 62... Pressure indicating regulator 63.. Control mechanism 64.··Rotation number controller 5.. .Strip steel plate TV·.Steel plate temperature T2...Measured bath temperature D 2'...Set plate temperature τ3...ideal gas temperatureΤ4...measured gas temperatureΡ〇.··Set pressure Pi... measured gas pressure