CN114250355A - Hot-rolled titanium strip continuous annealing furnace compatible with hot-rolled stainless steel annealing and method - Google Patents
Hot-rolled titanium strip continuous annealing furnace compatible with hot-rolled stainless steel annealing and method Download PDFInfo
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- CN114250355A CN114250355A CN202111590135.4A CN202111590135A CN114250355A CN 114250355 A CN114250355 A CN 114250355A CN 202111590135 A CN202111590135 A CN 202111590135A CN 114250355 A CN114250355 A CN 114250355A
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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
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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
- C21D1/26—Methods of annealing
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/16—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of other metals or alloys based thereon
- C22F1/18—High-melting or refractory metals or alloys based thereon
- C22F1/183—High-melting or refractory metals or alloys based thereon of titanium or alloys based thereon
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Abstract
A hot-rolled titanium strip continuous annealing furnace compatible with hot-rolled stainless steel annealing and a method thereof relate to the field of heat treatment annealing furnaces. The hot-rolled titanium strip continuous annealing furnace compatible with hot-rolled stainless steel annealing comprises a preheating section, an air cooling section, a mixed cooling section, a furnace body consisting of a water spray cooling section and a squeezing drying section which are sequentially communicated, wherein a conveying roller way for conveying strips to pass through the furnace body and a plurality of air spray pipes, a plurality of water spray pipes and a plurality of drying spray pipes are arranged in the furnace body, the plurality of air spray pipes are respectively arranged in the conveying roller way, the plurality of water spray pipes and the plurality of drying spray pipes are respectively arranged on two side walls in a hearth of the preheating section, and the conveying roller way in the hearth of the preheating section is configured to be capable of automatically switching between a fiber roller and a steel roller. According to the hot-rolled titanium strip continuous annealing furnace and the annealing method compatible with hot-rolled stainless steel annealing, the heating, cooling and other process sections are reasonably configured, so that the continuous annealing furnace of titanium materials is compatible with the stainless steel continuous annealing, and the energy consumption and the production cost are effectively reduced.
Description
Technical Field
The application relates to the field of heat treatment annealing furnaces, in particular to a hot-rolled titanium strip continuous annealing furnace and a method compatible with hot-rolled stainless steel annealing.
Background
The titanium material has a series of advantages of no magnetism, good high-temperature mechanical property, small density, good corrosion resistance and the like, and has wide application in high-tech fields of aerospace, ships, nuclear energy and the like. The tissue form of a titanium material is a main factor determining the performance of the titanium material, the tissue form of the titanium material depends on a heat treatment process carried out on an alloy, a vacuum annealing method is mainly adopted for annealing the hot-rolled titanium material in China, the vacuum annealing is periodic annealing, the operation efficiency is low, the energy consumption is high, the temperature difference exists among the middle part, the inside part and the outside part of a titanium coil in the annealing process, the tissue structures of all parts of the titanium material are not uniform, and the integral performance of the titanium material is different.
Disclosure of Invention
The application aims to provide the hot-rolled titanium strip continuous annealing furnace and the method compatible with annealing of hot-rolled stainless steel, and the continuous annealing of the stainless steel is realized through reasonably configuring heating, cooling and other process sections, so that the continuous annealing furnace of the titanium material is compatible, and the energy consumption and the production cost are effectively reduced.
The embodiment of the application is realized as follows:
the embodiment of the application provides an annealing stove in succession of hot rolling titanium strip of compatible hot rolling stainless steel annealing, it is including the preheating section that communicates in proper order, the air cooling section, mix the cooling section, the furnace body that spray water cooling section and wringing dry section are constituteed, be equipped with in the furnace body and be used for transmitting the rollgang that the strip passed it and locate many air nozzles in the rollgang respectively, many water spray nozzles and many dry nozzles, both sides wall is equipped with a plurality of naked light nozzles to the strip heating respectively in the furnace of preheating section, the rollgang in the furnace of preheating section is configured into can automatic switch-over between fibre roller and steel roll.
In some alternative embodiments, the air-fuel ratio of the open flame burner is adjustable and arranged above and below the rollgang, respectively.
In some alternative embodiments, a plurality of air jets are provided within the air cooling section and the hybrid cooling section and are disposed above and below the rollgang, respectively.
In some alternative embodiments, a plurality of water spray lances are provided within the mixing and water spray cooling sections and are disposed above and below the rollgang, respectively.
In some alternative embodiments, a plurality of drying lances are provided within the wringing drying section and are disposed above and below the rollgang, respectively.
In some alternative embodiments, a plurality of wringing rollers are provided in the wringing drying section for removing moisture from the surface of the web.
The application provides a hot-rolled titanium strip continuous annealing method compatible with hot-rolled stainless steel annealing, which comprises the following steps:
when the titanium material is annealed, controlling the conveying roller way to be switched into a fiber roller to convey the titanium material, controlling the furnace temperature of the preheating section to be sequentially preheated, heated and uniformly heated at 650-850 ℃, then cooling the titanium material to be below 200 ℃ by adopting an air spray pipe, then carrying out spray cooling by using a water spray pipe, and carrying out squeezing drying to complete the annealing process;
when stainless steel annealing is carried out, the conveying roller way is controlled to be switched into a steel roller to convey stainless steel, the furnace temperature of the preheating section is controlled to be 1100-plus 1200 ℃ for preheating, heating and soaking, then an air spray pipe is adopted to cool to 900 ℃, an air spray pipe and a water spray pipe are used to rapidly cool to below 80 ℃ through a sensitization temperature interval, and finally squeezing and drying are carried out to finish the annealing process.
In some optional embodiments, the air-fuel ratio of the preheating heating section is controlled to be less than 1% when the titanium material is annealed, and the air-fuel ratio of the preheating heating section is controlled to be 3.5-4.5% when the stainless steel is annealed.
The beneficial effect of this application is: the application provides a compatible hot rolling titanium strip annealing stove in succession that hot rolling stainless steel is annealed is including the preheating section that communicates in proper order, the air cooling section, mix the cooling section, the furnace body that spray water cooling section and wringing dry section are constituteed, be equipped with in the furnace body and be used for transmitting the rollgang that the strip passed it and locate many air nozzles in the rollgang respectively, many water spray nozzles and many dry nozzles, preheat the furnace inner wall both sides wall of heating section and be equipped with a plurality of naked light nozzles to the strip heating respectively, the rollgang in the furnace of preheating the heating section is configured into can automatic switch-over between fibre roller and steel roller. The hot-rolled titanium strip continuous annealing furnace and the annealing method compatible with hot-rolled stainless steel annealing provided by the application are characterized in that heating, cooling and other process sections are reasonably configured, so that the continuous annealing furnace of titanium materials is compatible with the continuous annealing of stainless steel, the defects of original vacuum annealing are overcome, the product quality is improved, the problems of surplus production capacity and poor economical efficiency of a single titanium material annealing furnace can be solved, and the energy consumption and the production cost are effectively reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
FIG. 1 is a schematic structural diagram of a hot-rolled titanium strip continuous annealing furnace compatible with annealing of hot-rolled stainless steel according to an embodiment of the present application;
fig. 2 is a schematic partial structural view of a hot-rolled titanium strip continuous annealing furnace compatible with hot-rolled stainless steel annealing according to an embodiment of the present application.
In the figure: 100. a furnace body; 110. a preheating section; 120. an air cooling section; 130. a mixed cooling section; 140. a water spray cooling section; 150. a drying section; 160. a rollgang; 161. a fiber roller; 162. a steel roll; 170. an air nozzle; 180. a water spray lance; 190. drying the spray pipe; 200. open flame burners; 210. and (7) squeezing the roller.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the application usually place when in use, and are used only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the devices or elements being referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present application, it is further noted that, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The features and properties of the hot rolled titanium strip continuous annealing furnace and method compatible with hot rolled stainless steel annealing according to the present application will be described in further detail with reference to examples.
As shown in fig. 1 and 2, the embodiment of the present application provides a hot-rolled titanium strip continuous annealing furnace compatible with hot-rolled stainless steel annealing, which includes a furnace body 100 composed of a preheating section 110, an air cooling section 120, a mixed cooling section 130, a water spray cooling section 140 and a drying section 150 that are sequentially connected, a rollgang 160 for conveying a strip therethrough, a plurality of air spray pipes 170, a plurality of water spray pipes 180 and a plurality of drying spray pipes 190 that are respectively disposed in the rollgang 160 are disposed in the furnace body 100, sixty-five open fire nozzles 200 for heating the strip are respectively disposed on two side walls in a furnace chamber of the preheating section 110, the rollgang 160 in the furnace chamber of the preheating section 110 is configured to be automatically switched between a fiber roller 161 and a steel roller 162, air-fuel ratios of the open fire nozzles 200 are adjustable and respectively disposed above and below the rollgang 160, thirty-six air spray pipes 170 are disposed in the air cooling section 120 and the mixed cooling section 130 and are respectively disposed above and below the rollgang 160 And twenty-six water spray nozzles 180 are arranged in the mixed cooling section 130 and the water spray cooling section 140 and are respectively arranged above and below the conveying roller way 160, eleven drying nozzles 190 are arranged in the wringing drying section 150 and are respectively arranged above and below the conveying roller way 160, and five wringing rollers 210 for removing the surface moisture of the strip are arranged in the wringing drying section 150.
The application provides a hot-rolled titanium strip continuous annealing method compatible with hot-rolled stainless steel annealing, which comprises the following steps:
when the titanium material is annealed, controlling a conveying roller way 160 in a hearth of the preheating section 110 to be switched into a fiber roller 161 to convey the titanium material, controlling the air-fuel ratio of the preheating section 110 to be below 1%, controlling the furnace temperature of the preheating section 110 to be sequentially preheated, heated and uniformly heated at the temperature of 650 plus materials and 850 ℃, then cooling the titanium material to be below 200 ℃ by adopting an air spray pipe 170, then spraying and cooling by using a water spray pipe 180, and drying by extrusion to finish the annealing process;
when stainless steel annealing is carried out, the conveying roller way 160 in the hearth of the preheating section 110 is controlled to be switched to the steel roller 162 to convey stainless steel, the air-fuel ratio of the preheating section 110 is controlled to be 3.5-4.5%, the furnace temperature of the preheating section 110 is controlled to be at 1100-1200 ℃, preheating, heating and soaking are carried out, then the stainless steel is cooled to 900 ℃ by adopting the air spray pipe 170, then the stainless steel is quickly cooled to below 80 ℃ through the sensitization temperature range by using the air spray pipe 170 and the water spray pipe 180, and finally the annealing process is completed by squeezing and drying.
According to the hot-rolled titanium strip continuous annealing furnace and the annealing method compatible with hot-rolled stainless steel annealing provided by the embodiment of the application, the preheating section 110, the air cooling section 120, the mixed cooling section 130, the water spray cooling section 140 and the squeezing drying section 150 which are sequentially communicated are arranged, the conveying roller table 160 capable of switching the fiber rollers 161 and the steel rollers 162 is arranged in the preheating section 110, the titanium material and the stainless steel annealing operation can be switched, when the titanium material annealing is carried out, the conveying roller table 160 in the hearth of the preheating section 110 is controlled to be switched into the fiber rollers 161 to convey the titanium material, the air-fuel gas ratio of the preheating section 110 is controlled to be below 1%, the low-power heating and micro-peroxide states are used, the furnace temperature of the preheating section 110 is controlled to be 650-, Drying by squeezing to finish the annealing process; when stainless steel annealing is carried out, a conveying roller way 160 in a hearth of the preheating section 110 is controlled to be switched into a steel roller 162 to convey stainless steel, the air-fuel ratio of the preheating section 110 is controlled to be 3.5-4.5% for high-power heating, the furnace temperature is ensured to be maintained at the process requirement temperature of 1100-1200 ℃ for preheating, heating and soaking to realize annealing, then an air spray pipe 170 is adopted to cool to 900 ℃, an air spray pipe 170 and a water spray pipe 180 are used to rapidly cool to below 80 ℃ through a sensitization temperature range, and finally drying by extrusion to finish the annealing process.
The hot-rolled titanium strip continuous annealing furnace and the annealing method compatible with hot-rolled stainless steel annealing, provided by the embodiment of the application, can realize annealing of a hot-rolled titanium material and meet continuous annealing of stainless steel on one annealing furnace, solve the problems of low vacuum annealing operation efficiency, high energy consumption and poor quality of a hot-rolled titanium plate and also solve the problems of surplus production capacity and poor economical efficiency of a single titanium material annealing furnace.
The embodiments described above are some, but not all embodiments of the present application. The detailed description of the embodiments of the present application is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Claims (8)
1. The utility model provides a compatible hot rolling titanium strip continuous annealing stove that hot rolling stainless steel is annealed which characterized in that, it is including the preheating section, the air cooling section, mix the cooling section, spray water cooling section and the crowded dry segment furnace body that dry section constitutes that communicate in proper order, be equipped with in the furnace body and be used for transmitting the rollgang of strip passing it and locate respectively many air nozzles, many water spray nozzles and many dry nozzles in the rollgang, both sides wall is equipped with a plurality ofly respectively in the furnace of preheating section the naked light nozzle of strip heating, in the furnace of preheating section the rollgang is configured into can automatic switch-over between fibre roller and steel roller.
2. The hot rolled titanium strip continuous annealing furnace compatible with hot rolled stainless steel annealing according to claim 1, characterized in that the air-fuel ratio of the open flame burners is adjustable and arranged above and below the rollgang, respectively.
3. The hot rolled titanium strip continuous annealing furnace compatible with hot rolled stainless steel annealing according to claim 1, characterized in that a plurality of air nozzles are provided in the air cooling section and the mixed cooling section and are respectively arranged above and below the rollgang.
4. The hot rolled titanium strip continuous annealing furnace compatible with hot rolled stainless steel annealing according to claim 1, characterized in that a plurality of said water spray lances are provided in said hybrid cooling section and said water spray cooling section and are arranged above and below said rollgang, respectively.
5. The hot rolled titanium strip continuous annealing furnace compatible with hot rolled stainless steel annealing according to claim 1, characterized in that a plurality of drying nozzles are provided in the wringing drying section and are respectively arranged above and below the rollgang.
6. The continuous annealing furnace for hot-rolled titanium strip compatible with annealing of hot-rolled stainless steel according to claim 1, wherein a plurality of wringing rollers for removing moisture from the surface of the strip are provided in the wringing drying section.
7. A hot-rolled titanium strip continuous annealing method compatible with hot-rolled stainless steel annealing is characterized by comprising the following steps:
when the titanium material is annealed, controlling the conveying roller way to be switched into a fiber roller to convey the titanium material, controlling the furnace temperature of the preheating section to be sequentially preheated, heated and uniformly heated at 650-850 ℃, then cooling the titanium material to be below 200 ℃ by adopting an air spray pipe, then carrying out spray cooling by using a water spray pipe, and carrying out squeezing drying to complete the annealing process;
when stainless steel annealing is carried out, the conveying roller way is controlled to be switched into a steel roller to convey stainless steel, the furnace temperature of the preheating section is controlled to be 1100-plus 1200 ℃ for preheating, heating and soaking, then an air spray pipe is adopted to cool to 900 ℃, an air spray pipe and a water spray pipe are used to rapidly cool to below 80 ℃ through a sensitization temperature interval, and finally squeezing and drying are carried out to finish the annealing process.
8. The continuous annealing method of hot-rolled titanium strip compatible with annealing of hot-rolled stainless steel according to claim 7, wherein the air/fuel ratio of the preheating section is controlled to be 1% or less when the annealing of titanium material is performed, and the air/fuel ratio of the preheating section is controlled to be 3.5-4.5% when the annealing of stainless steel is performed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111590135.4A CN114250355A (en) | 2021-12-23 | 2021-12-23 | Hot-rolled titanium strip continuous annealing furnace compatible with hot-rolled stainless steel annealing and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111590135.4A CN114250355A (en) | 2021-12-23 | 2021-12-23 | Hot-rolled titanium strip continuous annealing furnace compatible with hot-rolled stainless steel annealing and method |
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| CN114250355A true CN114250355A (en) | 2022-03-29 |
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| CN202111590135.4A Pending CN114250355A (en) | 2021-12-23 | 2021-12-23 | Hot-rolled titanium strip continuous annealing furnace compatible with hot-rolled stainless steel annealing and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116511242A (en) * | 2023-06-26 | 2023-08-01 | 小熊猫线缆有限公司 | Continuous rolling and continuous annealing processing equipment for flexible fireproof cable |
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| GB702837A (en) * | 1950-10-25 | 1954-01-27 | Robertshaw Fulton Controls Co | Improvements in or relating to the annealing of stainless steel |
| JPH01295013A (en) * | 1988-05-23 | 1989-11-28 | Kobe Steel Ltd | Method for connecting different kind steel rolled coils |
| CN202440537U (en) * | 2012-01-18 | 2012-09-19 | 哈尔滨松江电炉厂有限责任公司 | Stainless steel and titanium steel cold spraying device of continuous annealing furnace |
| CN103555924A (en) * | 2013-11-08 | 2014-02-05 | 中冶南方(武汉)威仕工业炉有限公司 | Atmosphere replacement system of continuous annealing furnace |
| CN203569154U (en) * | 2013-11-08 | 2014-04-30 | 中冶南方(武汉)威仕工业炉有限公司 | Horizontal continuous annealing furnace for annealing titanium strips and steel strips |
| CN113699363A (en) * | 2021-09-07 | 2021-11-26 | 中冶南方工程技术有限公司 | Horizontal bright annealing equipment of stainless steel |
-
2021
- 2021-12-23 CN CN202111590135.4A patent/CN114250355A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB702837A (en) * | 1950-10-25 | 1954-01-27 | Robertshaw Fulton Controls Co | Improvements in or relating to the annealing of stainless steel |
| JPH01295013A (en) * | 1988-05-23 | 1989-11-28 | Kobe Steel Ltd | Method for connecting different kind steel rolled coils |
| CN202440537U (en) * | 2012-01-18 | 2012-09-19 | 哈尔滨松江电炉厂有限责任公司 | Stainless steel and titanium steel cold spraying device of continuous annealing furnace |
| CN103555924A (en) * | 2013-11-08 | 2014-02-05 | 中冶南方(武汉)威仕工业炉有限公司 | Atmosphere replacement system of continuous annealing furnace |
| CN203569154U (en) * | 2013-11-08 | 2014-04-30 | 中冶南方(武汉)威仕工业炉有限公司 | Horizontal continuous annealing furnace for annealing titanium strips and steel strips |
| CN113699363A (en) * | 2021-09-07 | 2021-11-26 | 中冶南方工程技术有限公司 | Horizontal bright annealing equipment of stainless steel |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116511242A (en) * | 2023-06-26 | 2023-08-01 | 小熊猫线缆有限公司 | Continuous rolling and continuous annealing processing equipment for flexible fireproof cable |
| CN116511242B (en) * | 2023-06-26 | 2023-08-25 | 小熊猫线缆有限公司 | Continuous rolling and continuous annealing processing equipment for flexible fireproof cable |
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