TW200914625A - A method for the heat treatment of a metal strip - Google Patents
A method for the heat treatment of a metal strip Download PDFInfo
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- TW200914625A TW200914625A TW097123633A TW97123633A TW200914625A TW 200914625 A TW200914625 A TW 200914625A TW 097123633 A TW097123633 A TW 097123633A TW 97123633 A TW97123633 A TW 97123633A TW 200914625 A TW200914625 A TW 200914625A
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- Prior art keywords
- flue gas
- furnace
- sleeve
- gas
- component
- Prior art date
Links
- 239000002184 metal Substances 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000010438 heat treatment Methods 0.000 title claims abstract description 14
- 239000003546 flue gas Substances 0.000 claims abstract description 52
- 239000007789 gas Substances 0.000 claims abstract description 31
- 238000000576 coating method Methods 0.000 claims abstract description 13
- 230000001681 protective effect Effects 0.000 claims abstract description 13
- 239000011248 coating agent Substances 0.000 claims abstract description 12
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 49
- 238000002485 combustion reaction Methods 0.000 claims description 16
- 238000000137 annealing Methods 0.000 claims description 9
- 239000004071 soot Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- 239000000446 fuel Substances 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 206010036790 Productive cough Diseases 0.000 description 1
- 235000006040 Prunus persica var persica Nutrition 0.000 description 1
- 240000006413 Prunus persica var. persica Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000010960 cold rolled steel Substances 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000005246 galvanizing Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 210000003802 sputum Anatomy 0.000 description 1
- 208000024794 sputum Diseases 0.000 description 1
- 210000002784 stomach Anatomy 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/34—Methods of heating
- C21D1/52—Methods of heating with flames
-
- 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
- C21D9/0043—Muffle furnaces; Retort furnaces
-
- 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
- C21D9/565—Sealing arrangements
-
- 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
- C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
- C23C2/022—Pretreatment of the material to be coated, e.g. for coating on selected surface areas by heating
- C23C2/0222—Pretreatment of the material to be coated, e.g. for coating on selected surface areas by heating in a reactive atmosphere, e.g. oxidising or reducing atmosphere
-
- 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
- C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
- C23C2/022—Pretreatment of the material to be coated, e.g. for coating on selected surface areas by heating
- C23C2/0224—Two or more thermal pretreatments
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/28—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity for treating continuous lengths of work
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
Description
200914625 九、發明說明： 【發明所屬之技術領域】 本發明係關於一種於塗佈金屬塗層前熱處理金屬條片之方 法’首先讓金屬條片藉由熱煙道氣之辅助於—直接引_爐部件 内加熱，之後於包含至少一套筒之熔爐段部中於還原之保護性 體中加以退火。 P ^ 【先前技術】 針對隨後鍍鋅用之冷軋鋼條片之前置處理，已知之方法係為 了後續再次減少保護性氣體中之氧化物，先將鋼條片於氧化氣體 中預熱，而氧化物對鋼材之可歷性及黏著性有負面影響。為達^ 目的，可使用具有-直接引燃職部件及—相鄰找爐部件之退 火嫁爐，直接引燃賴部件使鋼條片魏化氣體中加熱，而相鄰 之溶爐部件則藉㈣帛射管之輔助被加熱且包含賴性氣體。為^ 保於直接？丨燃雜部件之紐道氣加熱鋼條片之過程中，僅有很 =氧化層可形成於鋼條片表面上，該使用之燃料以次計量比化 合《万式（SUbst〇ichi〇metricmanner)引燃，因此需有用以办敷 室。雖然直接引燃溶爐部件之煙道氣也=為 桃片預‘奴用，於鋼條片進人錄餘_部件前之 幽 ，作狀態中，來自煙道氣可使用之熱能超出加熱鋼條片所^執 能，因此該部份熱能未使用於鋼條片之熱處理。 而”、、 由於退火减轉躲加熱作為金屬條片之 ，之保護性氣體中僅具有限之氯含量，且上述有限之氣ΪΪ; ί典法使用純火城達成氫氣對水蒸氣之射比例生 點，專利案（AT5GG 686 B1)已提出針對塗佈金屬塗 ^ ΐΓ:=，理提供—具許多連續安“筒之“ W ’其中保祕氣體中之氫含量可根據套筒位置二= 200914625 於具套筒之溶爐段部上游處之直接引燃熔爐段部内，金屬條片之 加沾可於熱煙道氣之氧化氣體中一再發生。關於熱能使用上相似 之不利條件一樣會發生。 【發明内容】 本發明之目的係提供一於塗佈金屬塗層前熱處理金屬條片之 万法’首先讓金屬條片於一氧化用之煙道氣氣體中，之後置於— 遂原<保護性氣體中，以此方式，個別熔爐部件内直接引燃使用 燃料所產生可用之熱能能完全使用於金屬條片之熱處理。 基於上述方法，本發明之目的可藉由來自直接引燃熔爐部件 之煙道氣之辅助加熱套筒之方式達成。 ^此方法確保以簡單之方式使無法用於直接引燃熔爐部件内加 ，金屬條片所使用燃料之熱能，可用於加熱套筒上，如此套筒僅 需於必要時提供額外之熱能。由於煙道氣之氧含量於具套筒之熔 =牛區域中與針對套筒内還原之保護性氣體下進行熱處理金屬 條片之套筒外部不相關，於具套筒之熔爐部件内，燃料之後燃燒 可於有利之燃氣供給下發生而無損金屬條片之輝面退火。 為於直接引燃熔爐部件内加熱金屬條片期間限制金屬條片表 面上氧化層之過度成長’來自套筒中之保護性氣體可與直接引燃 盧部件之㈣氣齡，其使維持—_氣體具足夠㈣次計量 比化合燃燒（substoichiometric combustion)之氧濃度變得容易， 2濃度最好降低以_金屬條片表面上之氧化作^藉由包圍 =筒^煙道氣燃燒室内供給額外之燃氣，煙道氣之後燃燒可於超 ’、及里比化合方式（SUper_st〇ichi〇metric )之條件下完成。 、、為完賴方法，退火_可具—直接健轉部件及一鄰近 2爐部件，其包含—至少由—煙道氣燃燒室包圍之套筒。只需 由土 V煙道氣皆線於煙道氣流出側區域中之直接引燃溶爐 6 200914625 邯件連接至包圍套筒之煙道氣燃燒室以便於需要時，供终 自直接引燃熔爐部件依然灼熱之煙道氣。包 筒來 , q食丨sj <煙谊洛祕 ，：為後燃燒室。再者’可用傳統方式提供套筒额外之熱：先 取好藉由煙道氣燃燒室中之燃燒器之輔助，其煙遒氣將與=此 燃炫爐邵件之煙道氣混合。該燃燒器也可只將空氣注入二…，引 燒室内作為冷卻之用。 道氣燃 為確保直接引燃熔爐部件能被供給來自套筒之保 _ / 必須確定套筒與直接引燃熔爐部件於煙道氣管線相對^側 間有-氣流之連接。該氣流之連接不f任何特殊結構上之方^域 因為熔爐部件間金屬條片之引導需要熔爐部件之個別連接。/ 【圖式簡單說明】 根據本發明用於塗佈金屬塗層前熱處理金屬條片之方法— 參考圖式做更詳細之說明。用以完成根據本發明核之退火= 以一概要結構圖顯示。 · 【實施方式】 圖式之退火職包含-於塗佈金屬塗層前於熔解或電解 用以職金屬條片2之雜部件卜1射轉爐料3及二且 I ，套筒5之_部件4。此安排使金屬條片2從底部至頂部通過溶 爐部件i，並經由滾輪引導盒6轉向至直接引燃溶爐3，与由另 /滚輪引導盒7釘方與套筒5連接，致使由套筒5胃出之 條片2可經由轉向滾輪8通過輸送管9被拉出。稍爐部件 具燃燒器W曝麟燃燒。熱煙道氣加細上㈣爐部件3中向 下通過之金屬條片2。 直接引輯爐段部3魏道氣以側藉由煙道鮮線u連接 多包圍套筒5之煙道氣燃燒室12 ’並由來自直接引·爐3之煙 7 200914625 之辅助加熱套筒5，如圖中虛線箭頭所示。如果岔開至煙道氣 12之煙道氣熱能不足以個別加熱套筒5，可額外提供熱能 Γ加，套筒5 ’煙道氣燃燒室12中之燃燒器13就為此目的。當僅 是芝氣經由燃燒器噴嘴注入煙道氣燃燒室12時，該燃燒器13亦 可作為冷卻之用。 、作為i屬1片2預熱之溶爐部件1也藉由直接引燃溶爐部件3 之煙道氣之輔助被加熱。為此目的，於熔爐部件丨及2之間提供 -個別之連接管線14。用以預熱金屬條片2之煙道氣量係由直接 引燃溶爐部件3之煙道氣贫開，並由連接管、線14中之阻力板15 设疋。熔爐部件1之壓力程度可由熔爐部件1之煙道氣通風口 17 中之即流閥16調整。節流閥之作用對於流經熔爐部件4煙道氣燃 燒室12之煙道氣量及煙道氣燃燒室12之壓力程度有相似之影 曰煙道氣管線11中之控制閥標示為元件符號18。於煙道氣通風 口 19中之節流閥標示為元件符號2〇。 ^於套ι€ 5中金屬條片2之熱處理係於保護性氣體下施行。保 護性氣體被引導穿過套筒反向流至金屬條片2,並藉由底部之滾輪 引導念7到達直接引燃熔爐部件3,保護性氣體與煙道氣則於滾^ 引導盒7内混合。 ㈤ 藉由煙道氣對金屬條片2之直接加熱可由所述之煙道氣之導 引芫成，而煙道氣於次計量比化合方式之範圍内燃燒以避免於金 屬條片表面上形成一快速之氧化層。氧氣濃度可藉由來自套筒5 之/昆合保護性氣體更進一步被減低。儘管使用之燃料以次計量比 化合方式燃燒’該些燃料之熱能仍可被有效利用，因為一方面煙 逼氣燃燒室12及另一方面作為預熱金屬條片2之熔爐部件丨代表 有利之後燃燒段部。 200914625200914625 IX. INSTRUCTIONS: [Technical Field] The present invention relates to a method for heat-treating a metal strip before coating a metal coating. First, the metal strip is assisted by hot flue gas. The furnace components are heated and then annealed in a reduced protective body in a furnace section containing at least one sleeve. P ^ [Prior Art] For the pre-treatment of cold-rolled steel strips for subsequent galvanizing, a known method is to preheat the steel strips in an oxidizing gas in order to further reduce the oxides in the protective gas. Oxides have a negative impact on the calendarability and adhesion of steel. For the purpose of the purpose, an annealing furnace having a direct ignition component and an adjacent furnace component may be used to directly ignite the components to heat the steel strips in the Wei gas, while the adjacent furnace components are borrowed. (4) The auxiliary of the sputum tube is heated and contains a gas. Is it guaranteed to be directly? In the process of heating the steel strips of the gas-filled parts, only the oxide layer can be formed on the surface of the steel strip, and the fuel used is combined with the sub-metering ratio "SUbst〇ichi〇metricmanner" It ignites, so it needs to be useful to set up the room. Although the flue gas directly igniting the furnace parts is also used for the peach sheet, the heat energy from the flue gas can be used beyond the heated steel in the state of the steel strip. The strips are capable of being applied, so that this part of the heat is not used for the heat treatment of the steel strips. And ",, due to the annealing reduction and heating as a metal strip, the protective gas has only a limited chlorine content, and the above limited gas enthalpy; ί 典 method uses pure fire city to achieve hydrogen to water vapor ratio In the case of the patent, the patent case (AT5GG 686 B1) has been proposed for the coating of metal coatings: ,, rationally provided - with many continuous safety "tubes" W 'where the hydrogen content in the secret gas can be based on the position of the sleeve two = 200914625 In the direct ignition furnace section upstream of the furnace section with the sleeve, the addition of metal strips can occur repeatedly in the oxidizing gas of the hot flue gas. The same disadvantages as the use of thermal energy will occur. SUMMARY OF THE INVENTION The object of the present invention is to provide a method for heat-treating a metal strip before coating a metal coating. First, the metal strip is placed in a flue gas for oxidation, and then placed in - 遂原< In the protective gas, in this way, the heat energy available for direct ignition of the fuel in the individual furnace components can be completely used for the heat treatment of the metal strip. Based on the above method, the object of the present invention can be obtained by The method of igniting the auxiliary heating sleeve of the flue gas of the furnace component is achieved. ^This method ensures that the heat energy of the fuel used for the metal strip can not be used for the direct ignition of the furnace component, and can be used for heating the jacket. On the cylinder, such a sleeve only needs to provide additional thermal energy when necessary. The oxygen content of the flue gas is heat treated in the molten zone of the sleeve and the protective gas for the reduction in the sleeve. The outer portion of the sleeve is uncorrelated, and in the furnace component with the sleeve, the post-fuel combustion can occur under favorable gas supply without damaging the glow annealing of the metal strip. During the period of heating the metal strip in the direct ignition furnace component Limiting the excessive growth of the oxide layer on the surface of the metal strip 'The protective gas from the sleeve can be compared with the (4) gas age of the direct ignition of the Lu component, which maintains the gas gas with sufficient (four) times of stoichiometric combustion. The oxygen concentration becomes easy, and the concentration of 2 is preferably lowered by the oxidation on the surface of the metal strip to provide additional gas, flue gas by surrounding the cylinder. The combustion can then be carried out under the conditions of Super', and the combination of SUPER_st〇ichi〇metric. For the remedy method, the annealing _ can be used - the direct rotation part and a adjacent 2 furnace part, which contain - a sleeve that is at least surrounded by a flue gas combustion chamber. It is only required to be connected to the flue gas surrounding the sleeve by the soil V flue gas in the direct igniting furnace 6 in the flue gas outflow side region. The combustion chamber is used to provide a flue gas that is still hot from the direct ignition of the furnace component when needed. The package comes, q 丨 丨 丨 烟 烟 烟 烟 烟 烟 烟 烟 烟 烟 烟 烟 烟 烟 烟 烟 烟 烟 烟 烟 烟 烟 烟 烟 烟 烟 烟 烟 烟 烟 烟 烟 烟 烟Extra heat of the sleeve: firstly, with the aid of the burner in the flue gas combustion chamber, the soot gas will be mixed with the flue gas of the flammable furnace. The burner can also inject air only into the two chambers for cooling. In order to ensure that the direct ignition furnace components can be supplied with the protection from the sleeve _ / The connection between the sleeve and the direct ignition furnace component on the opposite side of the flue gas line must be determined. The connection of the gas stream is not a special structural aspect because the guiding of the metal strips between the furnace components requires individual connections of the furnace components. / [Simple Description of the Drawings] The method for heat-treating metal strips before coating a metal coating according to the present invention - a more detailed description with reference to the drawings. Annealing to complete the core according to the invention = as shown in a schematic structure. · [Embodiment] The annealing job of the figure includes - before the coating of the metal coating, the melting or electrolysis of the miscellaneous parts of the metal strip 2, the firing of the charge 3 and the assembly of the sleeve 5 4. This arrangement causes the metal strip 2 to pass through the furnace part i from the bottom to the top and is diverted to the direct igniting furnace 3 via the roller guide box 6, and is connected to the sleeve 5 by the nail of the other/roller guide box 7, resulting in The strip 2 of the stomach 5 of the sleeve 5 can be pulled out through the delivery tube 9 via the deflection roller 8. The furnace part has a burner W to burn. The hot flue gas is finely bonded to the metal strip 2 which is passed downward in the furnace member 3. Directly indexing the furnace section 3, the Weidao gas is connected to the flue gas combustion chamber 12' of the plurality of sleeves 5 by the flue fresh line u, and is assisted by the auxiliary heating sleeve from the direct introduction furnace 3 200914625 5, as indicated by the dashed arrow in the figure. If the flue gas heat energy to the flue gas 12 is insufficient to individually heat the sleeve 5, additional heat energy may be provided, and the burner 13 in the sleeve 5' flue gas combustion chamber 12 is for this purpose. When only the gas is injected into the flue gas combustion chamber 12 via the burner nozzle, the burner 13 can also be used for cooling. The furnace component 1 which is a preheated one piece of i is also heated by the auxiliary of the flue gas directly igniting the furnace component 3. For this purpose, an individual connecting line 14 is provided between the furnace components 丨 and 2. The amount of flue gas used to preheat the metal strip 2 is depleted by the flue gas of the direct igniting furnace component 3 and is set by the resistance tube 15 in the connecting pipe and line 14. The degree of pressure of the furnace component 1 can be adjusted by the flow valve 16 in the flue gas vent 17 of the furnace component 1. The effect of the throttle valve has a similar effect on the amount of flue gas flowing through the flue gas combustion chamber 12 of the furnace component 4 and the pressure level of the flue gas combustion chamber 12. The control valve in the flue gas line 11 is labeled as component symbol 18 . The throttle valve in the flue gas vent 19 is indicated by the component symbol 2〇. ^ The heat treatment of the metal strip 2 in the set of ι € 5 is carried out under a protective gas. The protective gas is directed through the sleeve and flows back to the metal strip 2, and guided by the bottom roller to reach the direct ignition furnace component 3, and the protective gas and the flue gas are in the rolling guide box 7. mixing. (5) The direct heating of the metal strip 2 by the flue gas can be formed by the guidance of the flue gas, and the flue gas is burned within the range of the sub-metering ratio to avoid formation on the surface of the metal strip. A fast oxide layer. The oxygen concentration can be further reduced by the protective gas from the sleeve 5. Although the fuel used is combusted in a sub-metering manner, the thermal energy of the fuels can still be effectively utilized, since on the one hand the flue gas combustion chamber 12 and on the other hand the furnace components of the preheated metal strip 2 represent a favorable Burning section. 200914625
【主要元件符號說明】 1 熔爐部件 2 金屬條片 3 引燃熔爐部件 4 熔爐部件 5 套筒 6 滾輪引導盒 7 滾輪引導盒 8 轉向滾輪 9 輸送管 10 燃燒器 11 煙道氣管線 12 煙道氣燃燒室 13 燃燒器 14 連接管線 15 阻力板 16 節流閥 17 煙道氣通風口 18 控制閥 19 煙道氣通風口 20 節流閥 9[Explanation of main components] 1 Furnace part 2 Metal strip 3 Ignition furnace part 4 Furnace part 5 Sleeve 6 Roller guide box 7 Roller guide box 8 Steering wheel 9 Duct 10 Burner 11 Flue gas line 12 Flue gas Combustion chamber 13 Burner 14 Connecting line 15 Resistance plate 16 Throttle valve 17 Flue gas vent 18 Control valve 19 Flue gas vent 20 Throttle valve 9
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT0113507A AT505289B1 (en) | 2007-07-18 | 2007-07-18 | METHOD FOR HEAT TREATMENT OF A METAL STRIP |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| TW200914625A true TW200914625A (en) | 2009-04-01 |
Family
ID=39764261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW097123633A TW200914625A (en) | 2007-07-18 | 2008-06-25 | A method for the heat treatment of a metal strip |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2167695B1 (en) |
| AT (1) | AT505289B1 (en) |
| TW (1) | TW200914625A (en) |
| WO (1) | WO2009009809A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102012007292A1 (en) * | 2012-04-12 | 2013-10-17 | Linde Aktiengesellschaft | Method and treatment section for partially refining a metal product |
| AT520131A2 (en) | 2017-07-13 | 2019-01-15 | Andritz Tech & Asset Man Gmbh | METHOD FOR REDUCING NITROGEN OXIDE IN BAND TREATMENT OVENS |
| CN107639114A (en) * | 2017-09-23 | 2018-01-30 | 芜湖恒泰有色线材股份有限公司 | A kind of continuous finish draw equipment of fine welding wire for preventing fracture of wire |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE486640C (en) * | 1929-11-21 | Wilhelm Eckardt & Ernst Hotop | Two-storey furnace, consisting of a lower muffle furnace and an upper chamber furnace heated by the fire gases from the lower furnace | |
| US3720546A (en) * | 1969-04-21 | 1973-03-13 | Nippon Steel Corp | Method for preventing destruction of strip metal in annealing furnace connected with direct heating furnace |
| US4183983A (en) * | 1978-08-17 | 1980-01-15 | Selas Corporation Of America | Method for reducing metal oxide formation on a continuous metal sheet in the hot dip coating thereof |
| AU538925B2 (en) * | 1979-04-16 | 1984-09-06 | Ak Steel Corporation | Finishing of hop dip coating of ferrous base metal |
| US5023113A (en) * | 1988-08-29 | 1991-06-11 | Armco Steel Company, L.P. | Hot dip aluminum coated chromium alloy steel |
| FR2720079B1 (en) * | 1994-05-19 | 1996-06-21 | Lorraine Laminage | Process for coating aluminum by hot quenching a part, in particular a strip, of steel containing at least 0.1% by weight of manganese, in particular of stainless and / or alloyed steel. |
| JPH10168526A (en) * | 1996-12-11 | 1998-06-23 | Daido Steel Co Ltd | Continuous annealing furnace for metallic strip |
| FR2782326B1 (en) * | 1998-08-13 | 2000-09-15 | Air Liquide | METHOD FOR GALVANIZING A METAL STRIP |
| AT500686B1 (en) * | 2004-06-28 | 2007-03-15 | Ebner Ind Ofenbau | METHOD FOR THE HEAT TREATMENT OF A METAL STRIP BEFORE A METALLIC COATING |
| JP4797601B2 (en) * | 2005-11-29 | 2011-10-19 | Ｊｆｅスチール株式会社 | High strength hot dip galvanized steel sheet manufacturing method and hot dip galvanized steel sheet manufacturing equipment |
-
2007
- 2007-07-18 AT AT0113507A patent/AT505289B1/en not_active IP Right Cessation
-
2008
- 2008-06-19 WO PCT/AT2008/000221 patent/WO2009009809A1/en active Application Filing
- 2008-06-19 EP EP08756831.7A patent/EP2167695B1/en not_active Not-in-force
- 2008-06-25 TW TW097123633A patent/TW200914625A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| WO2009009809A1 (en) | 2009-01-22 |
| EP2167695A1 (en) | 2010-03-31 |
| AT505289A4 (en) | 2008-12-15 |
| EP2167695B1 (en) | 2017-05-31 |
| AT505289B1 (en) | 2008-12-15 |
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