CN111663134A - Method for producing titanium steel composite plate by metal powder solid deposition-rolling - Google Patents
Method for producing titanium steel composite plate by metal powder solid deposition-rolling Download PDFInfo
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- CN111663134A CN111663134A CN201910162405.8A CN201910162405A CN111663134A CN 111663134 A CN111663134 A CN 111663134A CN 201910162405 A CN201910162405 A CN 201910162405A CN 111663134 A CN111663134 A CN 111663134A
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- 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
- C23C24/00—Coating starting from inorganic powder
- C23C24/02—Coating starting from inorganic powder by application of pressure only
- C23C24/04—Impact or kinetic deposition of particles
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- 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
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/02—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of sheets
-
- 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
- C23C24/00—Coating starting from inorganic powder
- C23C24/02—Coating starting from inorganic powder by application of pressure only
- C23C24/06—Compressing powdered coating material, e.g. by milling
-
- 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
- B21B2001/383—Cladded or coated products
-
- 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
Abstract
The invention belongs to the field of composite plate production, and particularly relates to a method for producing a titanium steel composite plate by metal powder solid deposition-rolling. Firstly, cleaning the surface of a steel (or titanium alloy) substrate, preheating titanium alloy (or carbon steel or stainless steel) powder to be sprayed and deposited, and then performing solid spraying and deposition on the metal powder on the surface of the substrate by adopting an aerodynamic spraying technology to form a deposition layer. And (3) keeping the temperature of the substrate with the deposition layer for a period of time, heating to high temperature, rolling, and then carrying out heat treatment on the obtained composite plate to obtain the titanium steel composite plate with excellent performance. The invention can improve the manufacturing efficiency of the titanium steel composite board, effectively reduce the rejection rate, and can manufacture the titanium steel composite board with any thickness and any length.
Description
Technical Field
The invention belongs to the field of composite plate production, and particularly relates to a method for producing a titanium steel composite plate by metal powder solid deposition-rolling.
Background
The titanium steel composite plate has excellent corrosion resistance and toughness, and is widely applied to the industries of petrifaction, metallurgy, electric power and the like. At present, the technology adopted for producing the titanium steel composite plate is explosive welding technology or technology combining welding and rolling. The defects of limited size, interface melting and the like exist in explosive welding, the defects of interface oxidation, intermediate cracking and the like exist in a welding-rolling technology, and the large-size titanium steel composite plate without the welding seam cannot be produced.
Disclosure of Invention
The invention aims to provide a method for producing a titanium steel composite plate by metal powder solid deposition-rolling, which is characterized in that a titanium alloy (or steel) deposition layer is deposited on the surface of a steel (or titanium alloy) substrate by utilizing a pneumatic spraying technology, and the titanium steel composite plate is obtained by heating, heat preservation and high-temperature rolling. Therefore, the manufacturing efficiency of the titanium steel composite plate can be improved, the rejection rate is effectively reduced, and the titanium steel composite plate with any thickness and any length can be manufactured.
The technical scheme of the invention is as follows:
a method for producing a titanium steel composite plate by metal powder solid deposition-rolling comprises the following steps:
(1) cleaning the surface of the steel or titanium alloy substrate;
(2) preheating titanium alloy or steel powder subjected to pseudo-solid deposition, wherein the preheating temperature is 100-1200 ℃, and the heat preservation time is 0.5-180 min;
(3) spraying the preheated titanium alloy or steel powder in the step (2) on the surface of a steel or titanium alloy substrate by adopting an aerodynamic spraying technology, spraying the titanium alloy powder on the surface of a steel substrate, spraying the steel powder on the surface of the titanium alloy substrate, and forming a deposition layer on the surface of the substrate;
(4) placing the substrate with the deposition layer obtained after deposition in the step (3) in a heating furnace, and keeping the temperature for a period of time, wherein the temperature for keeping the temperature is 100-1200 ℃, and the time for keeping the temperature is 10-180 min;
(5) heating the plate obtained by heat preservation in the step (4) to 100-1300 ℃, and then rolling with the rolling reduction rate of 10-80%;
(6) and (4) carrying out heat treatment on the titanium steel composite plate obtained by rolling in the step (5), preserving heat for 10-180 min at 100-1000 ℃, and cooling in air, a furnace or oil.
In the step (1), the steel or titanium alloy substrate is a plate of carbon steel, stainless steel or titanium alloy.
In the step (2), the titanium alloy or steel powder is powder of commercial titanium alloy, stainless steel or carbon steel, the preheating temperature is 100-1200 ℃, and the heat preservation time is 0.5-180 min.
The method for producing the titanium steel composite plate by metal powder solid deposition-rolling comprises the following steps of (3) carrying out aerodynamic spraying under the following conditions: the accelerating gas is one or a mixture of more than two of compressed air, nitrogen and helium, the gas pressure is 1.0-4.0 MPa, the gas heating temperature is 100-1200 ℃, the powder feeding speed is 5-150 g/min, the spray gun is 10-40 mm away from the steel or titanium alloy substrate, and the thickness of the deposition layer is 20-3000 μm.
In the method for producing the titanium steel composite plate by metal powder solid deposition-rolling, in the step (3), the preferable gas heating temperature is 400-500 ℃, and the thickness of a deposition layer is 100-200 mu m.
In the method for producing the titanium steel composite plate by metal powder solid deposition-rolling, in the step (4), the preferable heat preservation temperature is 800-1100 ℃, and the heat preservation time is 30-60 min.
In the method for producing the titanium steel composite plate by metal powder solid deposition-rolling, in the step (5), the preferable plate heating temperature is 900-1100 ℃, and the rolling reduction rate is 30-50%.
In the step (6), the preferable heat treatment comprises heat preservation at 500-700 ℃ for 60-90 min, and cooling in air, furnace or oil.
The design idea of the invention is as follows:
the method comprises the steps of cleaning the surface of a steel (or titanium alloy) substrate, preheating titanium alloy (or carbon steel or stainless steel) powder to be sprayed and deposited, and then performing solid spraying and deposition on the metal powder on the surface of the substrate by adopting a pneumatic spraying technology to form a deposition layer. And (3) keeping the temperature of the substrate with the deposition layer for a period of time, heating to high temperature, rolling, and then carrying out heat treatment on the obtained composite plate to obtain the titanium steel composite plate with excellent performance.
The invention has the advantages and beneficial effects that:
1. the invention can conveniently produce the titanium steel composite board with different components by changing the powder components.
2. According to the invention, the deposited layer with any thickness can be rapidly produced by the aerodynamic spraying technology, so that the titanium steel composite plates with different thicknesses can be obtained.
3. The invention realizes the pre-combination of two metal components by aerodynamic spraying technology, the interface between the two metals is clean, and the problems of oxidation and cracking existing in the existing explosive welding technology and welding-rolling technology are avoided.
4. The invention has simple process and low cost, and can produce large-size titanium steel composite plates.
Drawings
Fig. 1-2 are metallographic photographs of the interface of a metal powder solid deposition-rolled titanium steel composite plate produced in example 1.
Detailed Description
The following examples are given for the detailed description of the embodiments of the present invention, and the detailed implementation and specific operation procedures are given on the premise of the technical scheme of the present invention, but the scope of the present invention is not limited to the following examples.
Example 1: production of carbon steel/titanium composite board
In the embodiment, the Q235 carbon steel substrate is subjected to acid cleaning, then washed and dried by acetone and alcohol, and finally subjected to sand blasting activation treatment. And (3) placing the titanium alloy powder in a vacuum furnace, heating to 300 ℃, and preserving heat for 60 min. The heated titanium alloy powder is deposited on the surface of a Q235 carbon steel substrate in a solid state by utilizing a pneumatic spraying technology, compressed air is selected as accelerating gas, the main gas pressure is 2.0MPa, the heating temperature is 500 ℃, the powder feeding speed is 50g/min, the distance between a spray gun and a workpiece is 20mm, and the thickness of a produced deposition layer is 500 mu m. And (3) placing the substrate with the deposition layer in a heating furnace, heating to 400 ℃, and preserving heat for 120 min. And heating the titanium steel composite plate subjected to stress relief annealing to 900 ℃, and then rolling, wherein the rolling reduction rate is 50%. Heating the rolled titanium steel composite plate to 600 ℃, preserving heat for 30min, and cooling in the air to obtain the titanium steel composite plate with high bonding strength and good obdurability, wherein the performance indexes are as follows: the yield strength is 300MPa, and the tensile shear strength is 150 MPa.
As shown in fig. 1-2, the lower part of the picture is the interface between the carbon steel and the titanium layer, and it can be seen that the two-phase interface is straight, the combination is good, and no crack is generated.
Example 2: production of stainless steel/titanium composite board
In this embodiment, a 304 stainless steel substrate is subjected to acid cleaning, then washed and dried with acetone and alcohol, and finally subjected to sand blasting activation treatment. And (3) placing the titanium alloy powder in a vacuum furnace, heating to 300 ℃, and preserving heat for 60 min. The heated titanium alloy (alloy brand: Ti65) powder is deposited on the surface of a 304 stainless steel substrate in a solid state by utilizing a pneumatic spraying technology, compressed air is selected as accelerating gas, the main gas pressure is 2.5MPa, the heating temperature is 600 ℃, the powder feeding speed is 30g/min, a spray gun is 30mm away from a workpiece, and the thickness of a produced deposition layer is 800 mu m. And (3) placing the substrate with the deposition layer in a heating furnace, heating to 400 ℃, and preserving heat for 120 min. And heating the titanium steel composite plate subjected to stress relief annealing to 1000 ℃, and then rolling, wherein the rolling reduction rate is 50%. Heating the rolled titanium steel composite plate to 600 ℃, preserving heat for 30min, and cooling in a furnace to obtain the titanium steel composite plate with high bonding strength and good obdurability, wherein the performance indexes are as follows: the yield strength is 300MPa, and the tensile and shearing strength is 160 MPa.
Example 3: producing titanium/carbon steel composite board
In this example, a titanium alloy (alloy brand: Ti65) substrate was subjected to acid cleaning, then washed with acetone and alcohol and dried, and finally subjected to sand blasting activation treatment. Putting Q235 carbon steel powder into a vacuum furnace, heating to 400 ℃, and preserving heat for 60 min. The heated Q235 carbon steel powder is deposited on the surface of the titanium alloy substrate in a solid state by utilizing a pneumatic spraying technology, compressed air is selected as accelerating gas, the main gas pressure is 2.0MPa, the heating temperature is 500 ℃, the powder feeding speed is 100g/min, the distance between a spray gun and a workpiece is 40mm, and the thickness of a produced deposition layer is 500 mu m. And (3) placing the substrate with the deposition layer in a heating furnace, heating to 700 ℃, and preserving heat for 120 min. Heating the titanium steel composite plate subjected to stress relief annealing to 1100 ℃, and then rolling, wherein the rolling reduction rate is 50%. Heating the rolled titanium steel composite plate to 600 ℃, preserving heat for 30min, and cooling in oil to obtain the titanium steel composite plate with high bonding strength and good obdurability, wherein the performance indexes are as follows: the yield strength is 420MPa, and the tensile and shearing strength is 180 MPa.
Example 4: production of titanium/stainless steel composite board
In this example, a titanium alloy (alloy brand: Ti65) substrate was subjected to acid cleaning, then washed with acetone and alcohol and dried, and finally subjected to sand blasting activation treatment. The 304 stainless steel powder is put into a vacuum furnace and heated to 400 ℃, and the temperature is kept for 60 min. The heated 304 stainless steel powder is deposited on the surface of the carbon steel substrate in a solid state by utilizing a pneumatic spraying technology, compressed air is selected as accelerating gas, the main gas pressure is 2.5MPa, the heating temperature is 600 ℃, the powder feeding speed is 80g/min, the distance between a spray gun and a workpiece is 10mm, and the thickness of a produced deposition layer is 2000 mu m. And (3) placing the substrate with the deposition layer in a heating furnace, heating to 400 ℃, and preserving heat for 120 min. And heating the titanium steel composite plate subjected to stress relief annealing to 1200 ℃, and then rolling, wherein the rolling reduction rate is 60%. Heating the rolled titanium steel composite plate to 700 ℃, preserving heat for 30min, and cooling in the air to obtain the titanium steel composite plate with high bonding strength and good obdurability, wherein the performance indexes are as follows: the yield strength is 400MPa, and the tensile and shearing strength is 180 MPa.
The results of the examples show that the titanium steel composite board produced by the method has a straight titanium/steel interface, high bonding strength and good obdurability. The method is simple to operate, easy to control and strong in adaptability, can be used for producing titanium steel composite plates with large size and various components, and has no report at home and abroad.
Claims (8)
1. A method for producing a titanium steel composite plate by metal powder solid deposition-rolling is characterized by comprising the following steps:
(1) cleaning the surface of the steel or titanium alloy substrate;
(2) preheating titanium alloy or steel powder subjected to pseudo-solid deposition, wherein the preheating temperature is 100-1200 ℃, and the heat preservation time is 0.5-180 min;
(3) spraying the preheated titanium alloy or steel powder in the step (2) on the surface of a steel or titanium alloy substrate by adopting an aerodynamic spraying technology, spraying the titanium alloy powder on the surface of a steel substrate, spraying the steel powder on the surface of the titanium alloy substrate, and forming a deposition layer on the surface of the substrate;
(4) placing the substrate with the deposition layer obtained after deposition in the step (3) in a heating furnace, and keeping the temperature for a period of time, wherein the temperature for keeping the temperature is 100-1200 ℃, and the time for keeping the temperature is 10-180 min;
(5) heating the plate obtained by heat preservation in the step (4) to 100-1300 ℃, and then rolling with the rolling reduction rate of 10-80%;
(6) and (4) carrying out heat treatment on the titanium steel composite plate obtained by rolling in the step (5), preserving heat for 10-180 min at 100-1000 ℃, and cooling in air, a furnace or oil.
2. The method for producing a titanium steel composite plate by solid state deposition-rolling of metal powder according to claim 1, wherein in the step (1), the steel or titanium alloy substrate is a plate of carbon steel, stainless steel or titanium alloy.
3. The method for producing the titanium-steel composite plate by the metal powder solid deposition-rolling according to claim 1, wherein in the step (2), the titanium alloy or the steel powder is powder of commercial titanium alloy, stainless steel or carbon steel, the preheating temperature is 100-1200 ℃, and the heat preservation time is 0.5-180 min.
4. The method for producing titanium steel composite plates by solid state deposition-rolling of metal powders according to claim 1, wherein in the step (3), the aerodynamic spraying conditions are as follows: the accelerating gas is one or a mixture of more than two of compressed air, nitrogen and helium, the gas pressure is 1.0-4.0 MPa, the gas heating temperature is 100-1200 ℃, the powder feeding speed is 5-150 g/min, the spray gun is 10-40 mm away from the steel or titanium alloy substrate, and the thickness of the deposition layer is 20-3000 μm.
5. The method for producing the titanium steel composite plate by the metal powder solid deposition-rolling according to claim 4, wherein in the step (3), the preferable gas heating temperature is 400-500 ℃, and the thickness of the deposited layer is 100-200 μm.
6. The method for producing the titanium steel composite plate by the metal powder solid deposition-rolling according to claim 1, wherein in the step (4), the preferable heat preservation temperature is 800-1100 ℃, and the heat preservation time is 30-60 min.
7. The method for producing the titanium steel composite plate by the metal powder solid deposition-rolling according to claim 1, wherein in the step (5), the preferable heating temperature of the plate is 900-1100 ℃, and the rolling reduction rate is 30-50%.
8. The method for producing titanium steel composite plates by solid state deposition-rolling of metal powders according to claim 1, wherein in step (6), the preferred heat treatment comprises holding at 500 to 700 ℃ for 60 to 90min, and cooling in air, furnace or oil.
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Cited By (2)
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| CN112718908A (en) * | 2020-12-19 | 2021-04-30 | 昆明理工大学 | Method for manufacturing titanium steel composite rod |
| CN112760634A (en) * | 2020-12-29 | 2021-05-07 | 瓯锟科技温州有限公司 | Preparation method of wear-resistant metal composite plate |
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Application publication date: 20200915 |