CN117324379A - Method for preparing titanium/steel composite board by diffusion compounding - Google Patents
Method for preparing titanium/steel composite board by diffusion compounding Download PDFInfo
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- CN117324379A CN117324379A CN202311328334.7A CN202311328334A CN117324379A CN 117324379 A CN117324379 A CN 117324379A CN 202311328334 A CN202311328334 A CN 202311328334A CN 117324379 A CN117324379 A CN 117324379A
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- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 title claims abstract description 103
- 239000010936 titanium Substances 0.000 title claims abstract description 103
- 229910052719 titanium Inorganic materials 0.000 title claims abstract description 103
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 98
- 239000010959 steel Substances 0.000 title claims abstract description 98
- 239000002131 composite material Substances 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title claims abstract description 49
- 238000013329 compounding Methods 0.000 title claims abstract description 33
- 238000009792 diffusion process Methods 0.000 title claims abstract description 29
- 238000010438 heat treatment Methods 0.000 claims abstract description 51
- 239000000463 material Substances 0.000 claims abstract description 31
- 238000005096 rolling process Methods 0.000 claims abstract description 25
- 238000005097 cold rolling Methods 0.000 claims abstract description 19
- 238000000137 annealing Methods 0.000 claims abstract description 17
- 238000011282 treatment Methods 0.000 claims abstract description 14
- 238000001816 cooling Methods 0.000 claims abstract description 11
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 9
- 239000000956 alloy Substances 0.000 claims abstract description 9
- 230000008569 process Effects 0.000 claims abstract description 9
- 230000009467 reduction Effects 0.000 claims abstract description 9
- 238000005498 polishing Methods 0.000 claims abstract description 7
- 239000012535 impurity Substances 0.000 claims abstract description 4
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 229910001200 Ferrotitanium Inorganic materials 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 2
- 238000000227 grinding Methods 0.000 description 8
- 238000002360 preparation method Methods 0.000 description 8
- 229910003460 diamond Inorganic materials 0.000 description 7
- 239000010432 diamond Substances 0.000 description 7
- 229910002593 Fe-Ti Inorganic materials 0.000 description 6
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- 239000000428 dust Substances 0.000 description 5
- 239000003344 environmental pollutant Substances 0.000 description 5
- 230000003647 oxidation Effects 0.000 description 5
- -1 oxidation Substances 0.000 description 5
- 238000007254 oxidation reaction Methods 0.000 description 5
- 231100000719 pollutant Toxicity 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000004880 explosion Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005098 hot rolling Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000004886 process control Methods 0.000 description 2
- 239000010953 base metal Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000010406 interfacial reaction Methods 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011185 multilayer composite material Substances 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010301 surface-oxidation reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/38—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling sheets of limited length, e.g. folded sheets, superimposed sheets, pack rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/004—Heating the product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0203—Cooling
- B21B45/0209—Cooling devices, e.g. using gaseous coolants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/38—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling sheets of limited length, e.g. folded sheets, superimposed sheets, pack rolling
- B21B2001/386—Plates
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
The invention relates to a method for preparing a titanium/steel composite board by diffusion compounding, which comprises the following steps of S1, carrying out annealing softening treatment on a titanium board and a steel board to be compounded; s2, mechanically polishing the titanium plate and the steel plate after heat treatment to remove impurities such as an oxide layer and greasy dirt on the surface of the material; s3, stacking polished titanium plates and steel plates for assembly, and then conveying the assembly to a cold rolling mill for single-pass rolling to enable the titanium plates and the steel plates to be fully combined under the interface; s4, controlling the temperature, placing the cold-rolled pre-compounded plate blank in a heating furnace for high-temperature treatment for a period of time, and under the high-temperature condition, diffusing atoms in the titanium and steel materials, and mutually penetrating to form an alloy layer; and S5, cooling the material to room temperature after high-temperature treatment, and solidifying the alloy layer in the cooling process to obtain the titanium/steel composite board with excellent performance. The invention realizes firm titanium/steel interface combination by precisely controlling the temperature, time and the rolling reduction, and has stable product quality, high size precision of finished products and high material utilization rate.
Description
Technical Field
The invention relates to the technical field of preparation of metal layered composite materials, in particular to a method for preparing a titanium/steel composite plate by diffusion compounding.
Background
The titanium/steel composite board is an important composite material, has the characteristics of excellent corrosion resistance of titanium, high strength of steel and low cost, and is widely applied to the fields of aviation, automobiles, ships and the like. The preparation method of the titanium steel composite board comprises an explosion compounding method, a rolling compounding method and the like, the titanium/steel composite board prepared by the explosion compounding method has high comprehensive mechanical strength and good interface connection, the processing process is simple and convenient, no special equipment is needed, and the titanium/steel composite board is suitable for two-layer or multi-layer composite materials of the same or different types.
However, the drawbacks are also evident: noise and smoke are generated in the production process, only composite slabs with smaller specifications and thicker slabs can be processed, slabs with larger specifications cannot be processed, the fluctuation of product quality is large, and the composite slabs are sensitive to weather changes. The rolling composite method has the advantages of higher preparation efficiency, small influence on environment, low requirement on the size of the produced titanium/steel composite plate and the like. But a series of surface oxidation treatments must be performed before hot rolling compounding. High equipment and process requirements. For example, chinese patent publication nos. CN116571570A, CN202210806210, CN202210806697, CN104624644A, etc. each disclose a method for producing a titanium steel composite plate by a rolling composite method. Chinese patent publication No. CN110180892A, CN102837464a et al discloses a method for preparing a titanium steel composite plate by explosion compounding.
The diffusion compounding method is to form a composite structure by tightly stacking metal plates together by means of external force at a certain temperature lower than the melting point of a base metal and forming an intermediate phase by means of interdiffusion among elements at an interface, and the diffusion compounding method is to enable atoms of different materials to interdiffuse at a high temperature to form firm chemical combination. However, the conventional diffusion compounding method requires highly precise process control, including accurate control of parameters such as temperature, time and atmosphere, which makes the implementation of the method relatively complex; in addition, to ensure intimate contact of the alloy interface, the quality of the interface bond between the different materials needs to be carefully handled, otherwise interfacial shear, uneven diffusion, or interfacial reaction problems may occur; finally, conventional diffusion bonding methods typically require the application of additional pressure during heating, an operation that is not suitable for larger-sized titanium/steel composite plate production. Aiming at the problems of the traditional diffusion compounding method, how to simplify the preparation process and realize the accurate regulation and control of the generation of the interface intermetallic compound has very important significance.
Disclosure of Invention
The invention aims to provide a method for preparing a titanium/steel composite board by diffusion compounding, which can effectively solve the problems of high process control requirement, difficult interface treatment, limited size and the like of the traditional diffusion compounding method.
The technical scheme adopted by the invention is as follows:
the invention provides a method for preparing a titanium/steel composite board by diffusion compounding, which comprises the following steps:
s1, carrying out annealing softening treatment on a titanium plate and a steel plate to be compounded, wherein the hardness of the titanium plate is less than 150HV, and the hardness of the steel plate is less than 200HV;
s2, mechanically polishing the titanium plate and the steel plate after heat treatment to remove impurities such as an oxide layer and greasy dirt on the surface of the material;
s3, stacking polished titanium plates and steel plates for assembly, and then conveying the assembly to a cold rolling mill for single-pass rolling to enable the titanium plates and the steel plates to be fully combined under the interface;
s4, controlling the temperature, placing the cold-rolled pre-compounded plate blank in a heating furnace for high-temperature treatment for a period of time, and under the high-temperature condition, diffusing atoms in the titanium and steel materials, and mutually penetrating to form an alloy layer;
and S5, cooling the material to room temperature after high-temperature treatment, and solidifying the alloy layer in the cooling process to obtain the titanium/steel composite board with excellent performance.
Further, in the step S1, the titanium plate material is TA1 or TA2 or TA3 or TA10; the steel plate material is Q235, Q275 or 20# model.
Further, in the step S1, the annealing temperature of the titanium plate is 800-900 ℃ and the annealing time is 1-4 hours; the annealing temperature of the steel plate is 600-700 ℃ and the annealing time is 1-4h.
Further, in the step S1, the initial thickness of the titanium plate is 0.5-4.0mm, and the initial thickness of the steel plate is 1-7mm.
Further, in the step S2, the diamond grinding wheel is used to mechanically grind the plate, and the grinding direction is parallel to the rolling direction.
Further, in the step S3, the rolling reduction of the rolling mill is 20% -50%, and the rolling speed is 0.05-0.2m/S.
Further, in the step S4, the heating temperature of the heating furnace is controlled to be 700-850 ℃ and the heating time is 4-10h.
Further, in the step S5, during the cooling process, the titanium steel composite plate is placed in alumina powder to be cooled to room temperature.
Compared with the prior art, the invention has the following beneficial effects:
1. compared with the hot rolling compounding method and the explosion compounding method, the invention has the advantages of easy control of processing parameters, stable product quality, high dimensional accuracy of finished products, high material utilization rate, small environmental pollution, customizable and the like.
2. Compared with the traditional diffusion compounding method, the invention does not need to polish the joint surface to be smooth, does not need to additionally pressurize when heating in the heating furnace, and has the advantages of low equipment requirement, high production efficiency, simple process, low equipment requirement and the like.
3. The steel material adopted by the titanium/steel composite board prepared by the invention is low carbon steel, so that a large amount of TiC is avoided, the heating temperature is controlled below the temperature at which titanium and iron generate an intermediate phase, no Fe-Ti compound is generated at the interface, and the interface bonding quality is improved.
Drawings
Fig. 1 is a schematic flow chart of a method for preparing a titanium/steel composite plate by diffusion bonding according to the present invention.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
The invention provides a method for preparing a titanium/steel composite board by diffusion compounding, which is shown in figure 1 and specifically comprises the following steps:
s1, preparing a titanium plate and a steel plate which need to be compounded, wherein the initial thickness of the titanium plate is 0.5-4.0mm, and the initial thickness of the steel plate is 1-7mm; annealing and softening the titanium plate and the steel plate to be compounded; wherein the annealing temperature of the titanium plate is 800-900 ℃ and the annealing time is 1-4h; the annealing temperature of the steel plate is 600-700 ℃ and the annealing time is 1-4h; after annealing treatment, ensuring that the hardness of the titanium plate is less than 150HV and the hardness of the steel plate is less than 200HV; wherein, the titanium plate material can be TA1 or TA2 or TA3 or TA10; the steel plate material can be Q235, Q275 or 20# model.
S2, mechanically polishing the titanium plate and the steel plate after heat treatment, mechanically polishing the plate by adopting a diamond grinding wheel, wherein the polishing direction is parallel to the rolling direction, and removing impurities such as oxide layers and greasy dirt on the surfaces of the titanium plate and the steel plate.
S3, stacking polished titanium plates and steel plates for assembly, and then conveying the assembly to a cold rolling mill for single-pass rolling to enable the titanium plates and the steel plates to be fully combined under the interface; the rolling reduction of the rolling mill is set to 20% -50% and the rolling speed is set to 0.05-0.2m/s.
S4, controlling the temperature, placing the cold-rolled pre-compounded plate blank in a heating furnace for high-temperature treatment for a period of time, controlling the heating temperature of the heating furnace to be 700-850 ℃ and the heating time to be 4-10h, and under the high-temperature condition, diffusing atoms in the titanium and steel materials, and mutually penetrating and forming an alloy layer;
and S5, after high-temperature treatment, placing the titanium steel composite board in aluminum oxide powder for cooling to room temperature, and solidifying the alloy layer in the cooling process to obtain the titanium/steel composite board with excellent performance.
The invention is further illustrated by the following specific examples:
example 1
A method for preparing a titanium/steel composite board by diffusion compounding comprises the steps of preparing a coating material of TA1 pure titanium, an initial thickness of a titanium board of 1.0mm, preparing a base layer material of Q275 low-carbon steel, and an initial thickness of a steel board of 2.0mm. Firstly, placing a titanium plate in a heating furnace at 850 ℃ for heating for 2 hours; heating the steel plate in a heating furnace at 650 ℃ for 1h; the hardness of the annealed and softened titanium plate is 145HV, and the hardness of the steel plate is 180HV. And (3) utilizing the diamond grinding wheel to polish the surface of the plate, and removing pollutants such as oxidation, dust, water vapor and the like on the surface to be composited of the plate. And then, stacking and assembling the titanium plate and the steel plate, and then, feeding the titanium plate and the steel plate into a rolling mill for single cold rolling, wherein the cold rolling reduction is 35%. And finally, feeding the pre-composite plate subjected to cold rolling into a heating furnace, maintaining the temperature at 800 ℃ and heating for 5 hours, so that atoms near an interface are fully diffused, the interface of the obtained titanium/steel composite plate has little TiC, no Fe-Ti phase is generated, and the interface bonding strength is 240MPa.
Example 2
A preparation method for preparing a titanium/steel composite plate by diffusion compounding comprises the steps of preparing a coating material of TA1 pure titanium, wherein the initial thickness of a titanium plate is 1.5mm, a base layer material of Q275 low-carbon steel, and the initial thickness of a steel plate is 3.0mm. Firstly, placing a titanium plate in a heating furnace at 850 ℃ for heating for 2 hours; heating the steel plate in a heating furnace at 650 ℃ for 1.5h; the hardness of the annealed and softened titanium plate is 139HV, and the hardness of the steel plate is 176HV. And (3) utilizing the diamond grinding wheel to polish the surface of the plate, and removing pollutants such as oxidation, dust, water vapor and the like on the surface to be composited of the plate. And then, stacking and assembling the titanium plate and the steel plate, and then, feeding the titanium plate and the steel plate into a rolling mill for single cold rolling, wherein the cold rolling reduction is 20%. And finally, feeding the pre-composite plate subjected to cold rolling into a heating furnace, maintaining the temperature at 700 ℃ and heating for 5 hours, so that atoms near an interface are fully diffused, the interface of the obtained titanium/steel composite plate has little TiC, no Fe-Ti phase is generated, and the interface bonding strength is 235MPa.
Example 3
A preparation method for preparing a titanium/steel composite plate by diffusion compounding comprises the steps of preparing a coating material of TA1 pure titanium, wherein the initial thickness of a titanium plate is 2.0mm, a base layer material of Q275 low-carbon steel, and the initial thickness of a steel plate is 4.0mm. Firstly, placing a titanium plate in a heating furnace at 900 ℃ for heating for 3 hours; heating the steel plate in a heating furnace at 600 ℃ for 2 hours; the hardness of the annealed and softened titanium plate is 142HV, and the hardness of the steel plate is 182HV. And (3) utilizing the diamond grinding wheel to polish the surface of the plate, and removing pollutants such as oxidation, dust, water vapor and the like on the surface to be composited of the plate. And then, stacking and assembling the titanium plate and the steel plate, and then, feeding the titanium plate and the steel plate into a rolling mill for single cold rolling, wherein the cold rolling reduction is 50%. And finally, feeding the pre-composite plate subjected to cold rolling into a heating furnace, maintaining the temperature at 850 ℃ and heating for 5 hours, so that atoms near an interface are fully diffused, the interface of the obtained titanium/steel composite plate has little TiC, no Fe-Ti phase is generated, and the interface bonding strength is 255MPa.
Example 4
A preparation method for preparing a titanium/steel composite board by diffusion compounding comprises the steps of preparing a coating material of TA2 pure titanium, wherein the initial thickness of a titanium board is 1.0mm, a base material of Q275 low-carbon steel, and the initial thickness of a steel board is 2.0mm. Firstly, placing a titanium plate in a heating furnace at 850 ℃ for heating for 2 hours; heating the steel plate in a heating furnace at 650 ℃ for 1h; the hardness of the annealed and softened titanium plate is 134HV, and the hardness of the steel plate is 180HV. And (3) utilizing the diamond grinding wheel to polish the surface of the plate, and removing pollutants such as oxidation, dust, water vapor and the like on the surface to be composited of the plate. And then, stacking and assembling the titanium plate and the steel plate, and then, feeding the titanium plate and the steel plate into a rolling mill for single cold rolling, wherein the cold rolling reduction is 35%. And finally, feeding the pre-composite plate subjected to cold rolling into a heating furnace, maintaining the temperature at 800 ℃ and heating for 5 hours, so that atoms near an interface are fully diffused, the interface of the obtained titanium/steel composite plate has little TiC, no Fe-Ti phase is generated, and the interface bonding strength is 230MPa.
Example 5
A preparation method for preparing a titanium/steel composite plate by diffusion compounding comprises the steps of preparing a coating material of TA1 pure titanium, wherein the initial thickness of a titanium plate is 1.0mm, a base layer material of Q235 low-carbon steel, and the initial thickness of a steel plate is 2.0mm. Firstly, placing a titanium plate in a heating furnace at 850 ℃ for heating for 2 hours; heating the steel plate in a heating furnace at 650 ℃ for 1h; the hardness of the annealed and softened titanium plate is 145HV, and the hardness of the steel plate is 175HV. And (3) utilizing the diamond grinding wheel to polish the surface of the plate, and removing pollutants such as oxidation, dust, water vapor and the like on the surface to be composited of the plate. And then, stacking and assembling the titanium plate and the steel plate, and then, feeding the titanium plate and the steel plate into a rolling mill for single cold rolling, wherein the cold rolling reduction is 35%. And finally, feeding the pre-composite plate subjected to cold rolling into a heating furnace, maintaining the temperature at 800 ℃ and heating for 5 hours, so that atoms near an interface are fully diffused, the interface of the obtained titanium/steel composite plate has little TiC, no Fe-Ti phase is generated, and the interface bonding strength is 255MPa.
The invention is not fully described in detail in the prior art.
The above examples are only illustrative of the preferred embodiments of the present invention and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art to the technical solution of the present invention should fall within the scope of protection defined by the claims of the present invention without departing from the spirit of the design of the present invention.
Claims (8)
1. A method for preparing a titanium/steel composite board by diffusion compounding, which is characterized by comprising the following steps:
s1, carrying out annealing softening treatment on a titanium plate and a steel plate to be compounded, wherein the hardness of the titanium plate is less than 150HV, and the hardness of the steel plate is less than 200HV;
s2, mechanically polishing the titanium plate and the steel plate after heat treatment to remove impurities such as an oxide layer and greasy dirt on the surface of the material;
s3, stacking polished titanium plates and steel plates for assembly, and then conveying the assembly to a cold rolling mill for single-pass rolling to enable the titanium plates and the steel plates to be fully combined under the interface;
s4, controlling the temperature, placing the cold-rolled pre-compounded plate blank in a heating furnace for high-temperature treatment for a period of time, and under the high-temperature condition, diffusing atoms in the titanium and steel materials, and mutually penetrating to form an alloy layer;
and S5, cooling the material to room temperature after high-temperature treatment, and solidifying the alloy layer in the cooling process to obtain the titanium/steel composite board with excellent performance.
2. The method for preparing the titanium/steel composite plate by diffusion compounding according to claim 1, wherein the method comprises the following steps: in the step S1, the titanium plate material is TA1 or TA2 or TA3 or TA10; the steel plate material is Q235, Q275 or 20# model.
3. The method for preparing the titanium/steel composite plate by diffusion compounding according to claim 1, wherein the method comprises the following steps: in the step S1, the annealing temperature of the titanium plate is 800-900 ℃ and the annealing time is 1-4h; the annealing temperature of the steel plate is 600-700 ℃ and the annealing time is 1-4h.
4. The method for preparing the titanium/steel composite plate by diffusion compounding according to claim 1, wherein the method comprises the following steps: in the step S1, the initial thickness of the titanium plate is 0.5-4.0mm, and the initial thickness of the steel plate is 1-7mm.
5. The method for preparing the titanium/steel composite plate by diffusion compounding according to claim 1, wherein the method comprises the following steps: in the step S2, the plate is mechanically polished by a diamond-impregnated wheel, and the polishing direction is parallel to the rolling direction.
6. The method for preparing the titanium/steel composite plate by diffusion compounding according to claim 1, wherein the method comprises the following steps: in the step S3, the rolling reduction of the rolling mill is 20-50%, and the rolling speed is 0.05-0.2m/S.
7. The method for preparing the titanium/steel composite plate by diffusion compounding according to claim 1, wherein the method comprises the following steps: in the step S4, the heating temperature of the heating furnace is controlled to be 700-850 ℃ and the heating time is 4-10h.
8. The method for preparing the titanium/steel composite plate by diffusion compounding according to claim 1, wherein the method comprises the following steps: in the step S5, in the cooling process, the titanium steel composite plate is placed in alumina powder for cooling to room temperature.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311328334.7A CN117324379A (en) | 2023-10-13 | 2023-10-13 | Method for preparing titanium/steel composite board by diffusion compounding |
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| CN202311328334.7A CN117324379A (en) | 2023-10-13 | 2023-10-13 | Method for preparing titanium/steel composite board by diffusion compounding |
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