TW565620B - Dual-purpose installation for continuous annealing and hot dip plating - Google Patents

Dual-purpose installation for continuous annealing and hot dip plating Download PDF

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Publication number
TW565620B
TW565620B TW090122602A TW90122602A TW565620B TW 565620 B TW565620 B TW 565620B TW 090122602 A TW090122602 A TW 090122602A TW 90122602 A TW90122602 A TW 90122602A TW 565620 B TW565620 B TW 565620B
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Taiwan
Prior art keywords
equipment
continuous annealing
hot
coating
steel plate
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TW090122602A
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Chinese (zh)
Inventor
Masanori Hoshino
Kouichi Terahara
Motofumi Takemura
Nobuyoshi Okada
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Nippon Steel Corp
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Publication of TW565620B publication Critical patent/TW565620B/en

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    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/54—Furnaces for treating strips or wire
    • C21D9/56—Continuous furnaces for strip or wire
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/54—Furnaces for treating strips or wire
    • C21D9/56—Continuous furnaces for strip or wire
    • C21D9/561—Continuous furnaces for strip or wire with a controlled atmosphere or vacuum
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/54—Furnaces for treating strips or wire
    • C21D9/56—Continuous furnaces for strip or wire
    • C21D9/562—Details
    • 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
    • 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
    • C23C2/34—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the shape of the material to be treated
    • C23C2/36—Elongated material
    • C23C2/40—Plates; Strips
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/54—Furnaces for treating strips or wire
    • C21D9/56—Continuous furnaces for strip or wire
    • C21D9/573—Continuous furnaces for strip or wire with cooling

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Coating With Molten Metal (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)

Abstract

The present invention provides a dual-purpose installation for continuous annealing and hot dip plating to produce a continuously annealed steel sheet and a hot dip plated steel sheet by switching process routes in the single installation, and according to the present invention, by installing a bypass facility which leads a steel sheet from a continuous annealing furnace to a water quenching facility without it traveling through a plating pot and a plating facility in the dual-purpose installation for continuous annealing and hot dip plating, it becomes possible to prevent the steel sheet coming out of from the annealing furnace from being exposed to the outside atmosphere and being oxidized during the production of a continuously annealed product and to realize a less expensive dual-purpose installation for continuous annealing and hot dip plating.

Description

五、發明說明（1 ) 本發明係有關於一種用於連續退火與熱浸鍍敷之二用 裝置’其係用以藉在該單一裝置中進行之轉換製程而產生 一連續退火鋼板與一熱浸鍍敷鋼板。 雖然一連續退火鋼板與一熱浸鍍敷鋼板，特別是一熱 @電鑛鋼板’迄今’在一般實務上係使用設計用供各種目 的用的不同裝置，在日本專利第855_6469號或日本專利申 清案第H1 1-5298號中揭露一種用於連續退火與熱浸鍍敷 或熱浸電鍵之二用裝置以藉在該單一裝置中進行之轉換製 程而產生一連續退火鋼板與一熱浸鍍敷鋼板。 曰本專利第S55-6469號揭露一種用於熱浸鍍敷生產線 與連續退火生產線之二用裝置，其中生產一連續退火鋼板 寺 由連績退火爐中送出之鋼板係在一般大氣中冷卻 而沒有被浸入一鍍敷槽中。但是，由於剛由一連續退火爐 中送出之鋼板具有高溫，因此如果不採取防範措施，那麼 在该鋼板上就會有被氧化的問題發生。曾有一個解決方案 疋安裝一用以去除在表面上之該氧化膜的酸洗裝置，可是 這需要額外的設備投資，必須重新安裝一廢液處理設備而 且會增加操作之負擔。 曰本專利申請案第Hll_5298號中揭露一種可充份降 低來自一連續退火爐之鋼板在出口處的溫度的裝置以防止 该鋼板在它離開該連續退火爐且暴露於外面的空氣時氧 化但疋，將一鋼板冷卻到它不會在暴露於外面的空氣時 被氧化需要在該連續退火爐中有一較大的冷卻裝置且因而 使5又備成本增加。 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） (請先閱讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 άιφ------- -4- 州()2〇 經濟部智慧財產局員工消費合作社印製 A7 --------[ —___ 五、發明說明（2 ) 本發明提出用以解決以上問題的方法並且使一用於連 續退火與熱浸鐘敷之二用裝置在不會在設備成本大量增加 的情形下生產出一鋼板。 本發明解決以上問題的要點如下： (1) 一種用於連續退火與熱浸鍍敷之二用裝置，其中至 少一連續退火爐、-塗敷槽、一塗敷設備及一水驟冷設備 係以生產線之方式沿著一鋼板的移動方向配置，其特徵 在於具有一可使一鋼板由該連續退火爐直接導送至該水驟 冷設備而不會暴露於外部空氣的旁通設備，且該旁通設備 之内部係保持充滿著一非氧化性氣體。 (2) —種用於連續退火與熱浸鍍敷之二用裝置，其特徵 在於：具有在到達一塗敷槽及一塗敷設備之前的一合金 爐、一鋼板冷卻單元、或它們兩者並且配置有如第（丨）項所 述之旁通設備。 (3) —種如第（1)或（2)項所述之用於連續退火與熱浸鍍 敷之二用裝置，可使該塗敷設備及在該塗敷槽中之設備得 以被運送及修復，並且生產效率可以藉安裝該塗敷槽、該 塗敷没備及一在该旁通設備下方的升降設備而得以增加。 第1圖是一示意圖，顯示本發明所應用的一用於連續退 火與熱浸鍍敷之二用裝置。 以下依據一實例來詳細說明本發明。 第1圖是一顯示本發明所應用的一用於連續退火與熱 浸鍍敷或熱浸電鍍之二用裝置的示意圖。一鋼板1係在一連 續退火爐2中被退火’當生產一塗敷或電鍍產品時，該鋼板 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） I; ··1------訂--- (請先閱讀背面之注咅？事項再填寫本頁) -5- 565620V. Description of the invention (1) The present invention relates to a dual-purpose device for continuous annealing and hot dip plating, which is used to generate a continuous-annealed steel sheet and a heat by a conversion process performed in the single device. Dip plated steel. Although a continuous annealed steel sheet and a hot-dip galvanized steel sheet, especially a hot @ 电 矿 钢板 's' so far, use different devices designed for various purposes in general practice, in Japanese Patent No. 855_6469 or Japanese Patent Application Case No. H1 1-5298 discloses a dual-purpose device for continuous annealing and hot-dip plating or hot-dip electrical bonding to generate a continuous-annealed steel sheet and a hot-dip plating by a conversion process performed in the single device. Laying steel plate. Japanese Patent No. S55-6469 discloses a device for hot dip plating production line and continuous annealing production line, in which a continuous annealing steel plate is produced. The steel plate sent from the continuous annealing furnace is cooled in the general atmosphere without Was immersed in a plating bath. However, since the steel sheet just delivered from a continuous annealing furnace has a high temperature, if no precautionary measures are taken, the steel sheet may be oxidized. There was a solution 疋 installing a pickling device to remove the oxide film on the surface, but this requires additional equipment investment, a waste liquid processing equipment must be reinstalled and the burden on the operation will be increased. Japanese Patent Application No. Hll_5298 discloses a device that can sufficiently reduce the temperature of a steel plate from a continuous annealing furnace at the exit to prevent the steel plate from oxidizing but leaving when it leaves the continuous annealing furnace and is exposed to the outside air. Cooling a steel plate so that it will not be oxidized when exposed to the outside air requires a larger cooling device in the continuous annealing furnace and thus increases the cost. This paper size is in accordance with Chinese National Standard (CNS) A4 (210 X 297 mm) (Please read the notes on the back before filling out this page) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs ------- -4- State () Printed by the Consumer Property Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 -------- [—___ V. Description of the Invention (2) The present invention proposes a method to solve the above problems and makes one The device for continuous annealing and hot-dip clock application can produce a steel plate without greatly increasing the equipment cost. The main points of the present invention to solve the above problems are as follows: (1) A dual-purpose device for continuous annealing and hot dip plating, in which at least one continuous annealing furnace, a coating tank, a coating equipment and a water quenching equipment It is arranged along the moving direction of a steel plate in the manner of a production line, and is characterized by having a bypass device that can direct a steel plate from the continuous annealing furnace to the water quenching equipment without being exposed to outside air, and the The internal system of the bypass device remains filled with a non-oxidizing gas. (2) A dual-purpose device for continuous annealing and hot dip plating, characterized by having an alloy furnace, a steel plate cooling unit, or both before reaching a coating tank and a coating equipment And configured with the bypass device as described in item (丨). (3) A device for continuous annealing and hot dip plating as described in item (1) or (2), which enables the coating equipment and the equipment in the coating tank to be transported And repair, and production efficiency can be increased by installing the coating tank, the coating equipment and a lifting device below the bypass device. Fig. 1 is a schematic view showing a device for continuous annealing and hot dip plating applied to the present invention. The present invention is described in detail below based on an example. Fig. 1 is a schematic diagram showing a device for continuous annealing and hot dip plating or hot dip plating applied to the present invention. A steel plate 1 is annealed in a continuous annealing furnace 2 'When producing a coated or electroplated product, the paper size of the steel plate applies to the Chinese National Standard (CNS) A4 specification (210 X 297 mm) I; ·· 1 ------ Order --- (Please read the note on the back? Matters before filling out this page) -5- 565620

經濟部智慧財產局員工消費合作社印製 1被送至塗敷槽3並且在通過該連續退火爐2之後被塗 敷，如虛線所示。接著，在該塗敷重量被一塗敷設備4控制 之後，該鋼板在一合金爐5中進行合金處理，依需要地，由 鋼板冷卻單元6加以冷卻，然後在一水驟冷設備7中再進一 步冷卻到接近室溫。上述製程步驟之順序係與用以生產一 熱浸鑛敷或熱浸電鑛產品的一般製程順序完全一樣。 當生產一連續退火鋼板時，該鋼板丨必須在不通過該塗 敷槽3、該塗敷設備4、該合金爐5及該等冷卻單元6的情形 下藉該水驟冷設備7冷卻到接近室溫，但是，如果在通過該 連續退火爐2之後，該鋼板1暴露於外部空氣，那麼該鋼板 之表面將會被氧化。為了避免氧化，一旁通設備8安裝在本 發明中，使得該鋼板可以由該連續退火爐2直接移動到該水 驟冷設備7且不會暴露於外部空氣。 因為該旁通設備8之内部保持充滿著一非氧化性氣 體，該氣體具有如一 5至10%之H2及95至90%之N2所構成的 組成，且其係與在該連續退火爐中者相同的氣體，故該鋼 板1可以被運送到該水驟冷設備7並且在不被氧化的情形下 被冷卻。此外’藉安裝該塗敷槽3、該塗敷設備4及在該旁 通設備8下方的一升降設備9，可以於生產一連續退火產品 時運送及修復在該塗敷槽中之該塗敷槽、該塗敷設備或裝 置’因此增加了生產效率。 如上所述，藉應用本發明於一用於連續退火、熱浸錢 敷與熱 >文電鑛之一用裝置’可以省略用以去除在退火後於 一鋼板之表面上的氧化膜之酸洗設備。此外，可於生產一 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） ; ,·1------訂----- (請先閱讀背面之注意事項再填寫本頁) -111 I I----- -6- 565620 A7 __B7__ 五、發明說明（4 ) 連續退火產品時送及修復在該塗敷槽中之該塗散槽、該塗 敷設備或裝置，因此增加了生產效率。 【元件標號對照表】 1…鋼板 2.. .連續退火爐 3.. .塗敷槽 4.. .塗敷設備 5.. .合金爐 6…鋼板冷卻單元 7.. .水驟冷設備 8.. .旁通設備 9…升降設備 (請先閱讀背面之注意事項再填寫本頁) 訂-丨 經濟部智慧財產局員工消費合作社印製 -線-_----------------------- 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐）Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 1 is sent to the coating tank 3 and is coated after passing through the continuous annealing furnace 2 as shown by the dotted line. Next, after the coating weight is controlled by a coating equipment 4, the steel plate is subjected to alloy treatment in an alloy furnace 5, if necessary, cooled by a steel plate cooling unit 6, and then cooled in a water quenching equipment 7 again. Further cooled to near room temperature. The sequence of the above process steps is exactly the same as the general process sequence used to produce a hot-dip deposit or hot-dip electric ore product. When producing a continuous-annealed steel sheet, the steel sheet must be cooled by the water quenching device 7 to the nearest without passing through the coating tank 3, the coating equipment 4, the alloy furnace 5, and the cooling units 6. At room temperature, however, if the steel plate 1 is exposed to outside air after passing through the continuous annealing furnace 2, the surface of the steel plate will be oxidized. In order to avoid oxidation, a bypass device 8 is installed in the present invention so that the steel plate can be directly moved from the continuous annealing furnace 2 to the water quenching device 7 without being exposed to outside air. Because the inside of the bypass device 8 is filled with a non-oxidizing gas, the gas has a composition composed of 5 to 10% of H2 and 95 to 90% of N2, and it is similar to that in the continuous annealing furnace. The same gas, so the steel plate 1 can be transported to the water quenching device 7 and cooled without being oxidized. In addition, by installing the coating tank 3, the coating equipment 4, and a lifting device 9 below the bypass equipment 8, the coating in the coating tank can be transported and repaired when a continuous annealing product is produced. The tank, the coating apparatus or device 'therefore increases production efficiency. As described above, by applying the present invention to an apparatus for continuous annealing, hot-dip deposit and heat > electricity and electricity mining, the acid used to remove the oxide film on the surface of a steel plate after annealing can be omitted. Wash equipment. In addition, a Chinese paper can be produced in accordance with Chinese National Standard (CNS) A4 (210 X 297 mm); 1 · ---- Order ----- (Please read the precautions on the back before reading) (Fill in this page) -111 I I ----- -6- 565620 A7 __B7__ 5. Description of the invention (4) Send and repair the coating tank, coating equipment or Device, thus increasing production efficiency. [Comparison table of component numbers] 1… Steel plate 2 ... Continuous annealing furnace 3 ... Coating tank 4 .. Coating equipment 5 ... Alloy furnace 6. Steel plate cooling unit 7. Water quenching equipment 8. ... Bypass equipment 9 ... Lifting equipment (please read the precautions on the back before filling this page) Order-丨 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs-line -_---------- ------------- This paper size applies to China National Standard (CNS) A4 (210 X 297 mm)

Claims (1)

565630 一… U V ^ 六、申請專利範圍 請 種用於連、、、赢退火與熱浸鍍敷之二用裝置，其中至少一 連續退火爐、-塗敷槽、—錄設備及—水驟冷設備係 以生產線之方式沿著一鋼板的移動方向配置，其特徵 在於具彳K吏一鋼板由該連續退火爐直接導送至該水 驟冷設備而不會暴露於外部空氣的旁通設備，且該旁通 設備之内部係保持充滿著一非氧化性氣體。 2·如申請專利範圍第】項之用於連續退火與熱浸鑛敷之二 用裝置’更具有在到達-塗敷槽及—塗敷設備之前的一 合金爐、-鋼板冷卻單元、或它們兩者並且配置有如申 請專利範圍第1項所述之旁通設備。 3·如申請專㈣圍第lsiu項之詩連續敎與熱浸鍛敷之 二用裝置’其可使該塗敷設備及在該塗敷槽中之設備得 以被運送及修復，並且生產效率可以藉安裝該塗敷槽、 該塗敷設備及-在該旁通設備下方的升降設備而得:增 加0 線 經濟部智慧財產局員工消費合作社印製565630 I ... UV ^ 6. The scope of patent application please use the two-purpose device for continuous, hot-dip annealing and hot dip plating, at least one continuous annealing furnace,-coating tank,-recording equipment and-water quenching The equipment is arranged along the moving direction of a steel plate in the manner of a production line, and is characterized in that a steel plate is directly guided from the continuous annealing furnace to the water quenching equipment without being exposed to outside air. And the internal system of the bypass device is kept full of a non-oxidizing gas. 2. The second-use device for continuous annealing and hot-dip ore deposit as described in item [Scope of the patent application] has an alloy furnace, a steel plate cooling unit, or these before reaching the coating tank and coating equipment. Both are also equipped with a bypass device as described in item 1 of the patent application scope. 3. If applying for the special device for the continuous poem of item lsiu and hot-dip forging, it can make the coating equipment and the equipment in the coating tank be transported and repaired, and the production efficiency can be By installing the coating tank, the coating equipment and the lifting equipment below the bypass equipment: Add 0 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs I H ϋ ί n I n i · έ 冬I H ϋ ί n I n i
TW090122602A 2000-09-13 2001-09-12 Dual-purpose installation for continuous annealing and hot dip plating TW565620B (en)

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BR112012006970B1 (en) 2009-10-01 2018-04-17 Nippon Steel & Sumitomo Metal Corporation DOUBLE EQUIPMENT FOR CONTINUOUS HOT DIP COATING AND CONTINUOUS RECOVERY
BR112015032429A2 (en) * 2013-06-26 2017-07-25 Jfe Steel Corp combined treatment equipment for hot dip galvanizing of steel sheets and continuous annealing
JP6451138B2 (en) 2014-08-11 2019-01-16 Ｊｆｅスチール株式会社 Steel strip manufacturing method
JP6450109B2 (en) 2014-08-11 2019-01-09 Ｊｆｅスチール株式会社 Steel strip manufacturing equipment
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DE60133912D1 (en) 2008-06-19
EP1325163A4 (en) 2005-02-16
AU8623401A (en) 2002-03-26
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US20030189276A1 (en) 2003-10-09
AU2001286234B2 (en) 2005-06-16
WO2002022894A1 (en) 2002-03-21
EP1325163A1 (en) 2003-07-09
BR0113848B1 (en) 2011-07-12
BR0113848A (en) 2003-06-03
EP1325163B1 (en) 2008-05-07
RU2255138C2 (en) 2005-06-27
CA2421925A1 (en) 2002-03-21
CN100357461C (en) 2007-12-26
KR20030027107A (en) 2003-04-03

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