CN114101681A - Method for preparing metal laminated composite plate by using contact reaction - Google Patents
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- 238000000034 method Methods 0.000 title claims abstract description 39
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 38
- 239000000843 powder Substances 0.000 claims abstract description 51
- 238000005097 cold rolling Methods 0.000 claims abstract description 34
- 229910000765 intermetallic Inorganic materials 0.000 claims abstract description 22
- 238000013329 compounding Methods 0.000 claims abstract description 18
- 238000010438 heat treatment Methods 0.000 claims description 38
- 239000010410 layer Substances 0.000 claims description 30
- 239000010953 base metal Substances 0.000 claims description 21
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/02—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite layers
- B22F7/04—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite layers with one or more layers not made from powder, e.g. made from solid metal
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/12—Both compacting and sintering
- B22F3/14—Both compacting and sintering simultaneously
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/18—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by using pressure rollers
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Abstract
The invention discloses a method for preparing a metal laminated composite plate by utilizing a contact reaction, and belongs to the field of preparation of metal-based laminated composite materials. The method is characterized in that after intermediate metal powder is preset between metal plates to be compounded, a special rolling mill is used for cold rolling compounding, then the intermediate metal is heated to be in contact reaction with the composite metal plates, and finally a composite interface with high-hardness intermetallic compounds pinned in the interface is formed, so that the metal layered composite plate with high interface bonding strength is obtained. The invention has low equipment requirement, can be used for composite connection of two or more layers of plates, has wide material application range, simple operation and low equipment requirement and has larger practical application value.
Description
Technical Field
The invention belongs to the technical field of metal-based layered composite material preparation, and particularly provides a method for preparing a metal layered composite plate by utilizing a contact reaction.
Background
The metal composite plate has physical, chemical, mechanical or price advantages of different metals, so that the metal composite plate is widely applied to industries such as heat dissipation, communication, electric power and the like. The existing method for preparing the metal composite plate mainly comprises rolling compounding, explosion compounding, solid-liquid casting-rolling compounding and the like. The rolling composite method is widely applied to industrial production due to the characteristics of simple process, high production efficiency, low cost and the like, but generally requires larger rolling deformation and has high requirements on equipment capacity in order to improve the interface bonding strength. The explosion cladding method is to utilize the huge energy generated by explosion of explosive to generate high temperature and high pressure instantly between the bimetal, so as to realize the firm combination of the welded metal. The method has simple process, and the product size is not limited, but the limitation to the experimental site is larger. The solid-liquid casting-rolling composite method is a new technology based on double-roller casting-rolling technology, and is characterized by that it utilizes the rotating roller to quickly cool the liquid metal to make the liquid metal form diffusion flow on the surface of solid base plate, and then under the action of rolling force the liquid metal can be simultaneously plastically deformed in the course of solidification so as to obtain the invented bimetal composite plate. The composite board prepared by the method has high interface bonding strength and short process flow, and needs special equipment. In conclusion, the problems of high equipment requirement, complex process, low interface bonding strength and the like exist in the preparation of the metal laminated composite plate by adopting the existing method, and the popularization and the application of the metal laminated composite plate are greatly influenced.
Therefore, aiming at the defects of the traditional process method, the method for preparing the metal laminated composite plate by using the contact reaction is provided, and the method has important significance for preparing the metal laminated composite plate with high interface bonding strength.
Disclosure of Invention
The purpose of the invention is: a method for preparing laminated metal plate by contact reaction features that a special cold-rolling mill is used to cold-roll plate, and the intermediate metal powder is heated to contact with substrate and coating layer for reaction to realize high-strength connection between same and different metal plates.
The solution of the invention is as follows: and laying a layer of metal powder which can perform eutectic reaction with the metal plates to be compounded to generate a brittle intermetallic compound between the metal plates to be compounded, then performing cold rolling compounding on the combined metal plates, and finally heating to perform contact reaction between the metal powder and the base metal so as to realize effective connection between the metal plates to be compounded.
A method for preparing a metal laminated composite plate by utilizing a contact reaction is characterized in that the metal laminated composite plate with high interface bonding strength is obtained by presetting middle-layer metal powder before cold rolling and compounding, and comprises the following steps:
step 1: the metal powder is laid in a vacuum heating furnace to be heated and insulated to remove an oxide layer on the surface of the powder, and the metal powder is laid in a flat manner during heating to prevent the metal powder from being bonded in the heating process. Cleaning a base metal plate and a cladding metal plate to be compounded at room temperature, polishing the surface to be compounded to enable a hardened layer with pits to appear on the compounded surface, and enabling the surface to present a bright metal color after polishing, wherein the thickness of the formed hardened layer is 10-100 mu m.
Step 2: spreading metal powder on the surface of the base metal plate, wherein the spreading thickness is 0.1-1 mm, and then placing the coating metal plate above the base metal plate for superposition assembly;
and step 3: the assembly is subjected to pressure sintering treatment, wherein the pressure is realized by counterweight pressure or hydraulic device pressure, and the metal powder, the base metal plate and the coating metal plate are bonded under the action of pressure and heat, so that the metal powder can be effectively prevented from being extruded out of a composite interface under the extrusion action of a roller during subsequent cold rolling and compounding;
and 4, step 4: the assembly is sent into a special double-roller cold rolling mill matched with the concave-convex shape for cold rolling and compounding, so that the hardened layers on the surfaces of the base metal plate and the coating metal plate are cracked, the metal powder of the middle layer is embedded into the hardened layer on the surface of the cold-rolled composite plate, and the thickness of the coated metal powder is smaller and is not more than 1mm, so that the metal powder is dispersed and distributed in the interface due to the increase of the length of the plate during cold rolling and compounding, and a composite interface with the metal powder pinned in the interface is obtained;
and 5: and heating and insulating the cold-rolled composite plate to enable the metal powder to perform eutectic reaction with the surfaces of the base layer metal plate and the coating layer metal plate, wherein the hardness of the generated eutectic intermetallic compound is higher than that of the base layer metal plate and the coating layer metal plate, and finally the metal layered composite plate with high interface bonding strength and an intermetallic compound pinning structure is formed.
Furthermore, the metal powder in the step 1 is single or multiple metal powders which can perform eutectic reaction with the metal plate to be compounded to generate high-hardness intermetallic compounds, the particle size of the metal powder is less than or equal to 150 meshes, and the influence of excessive reaction of the metal powder and the metal plate on the function of the metal laminated composite plate can be effectively prevented.
Further, in the step 1, the heating temperature of the metal powder is 60-80% of the melting point temperature, the heat preservation time is 30-60 min, and the vacuum degree is 10 during heating-2Pa or less, and the metal powder is removed by decomposing the oxide film at a low oxygen partial pressure and a high temperature during the vacuum heating.
Furthermore, the base metal and the coating metal are pure metal materials or alloy materials of the same kind or different kinds, and the widths of the base metal and the coating metal plate are more than or equal to 10mm of the parallel end of the special roller.
Further, in the step 3, during pressure sintering, the pressure is 1-5 MPa, the sintering temperature is 60% -90% of the eutectic reaction temperature, the heat preservation time is 10-60 min, after sintering is completed, bonding among metal powder, base layer metal and cladding layer metal is required, the bonding strength is controlled by controlling the pressure during sintering, the eutectic reaction temperature and the heat preservation time, stress exceeding that during cold rolling composite deformation is avoided, and the metal powder can be separated to realize dispersion distribution during plate cold rolling composite deformation.
Furthermore, two ends of the special concave-convex matched special double-roller cold rolling mill roller are in an inclined plane type, a corrugated type or other structural forms capable of realizing edge sealing. The assembly is fed in the center when cold rolling is carried out, and the assembly with the width of more than or equal to 5mm on two sides is positioned in the edge sealing area of the roller, so that the metal powder is effectively prevented from overflowing from two sides when cold rolling is carried out.
Furthermore, in the step 4, the cold rolling speed is less than 0.1m/s, the cold rolling deformation is greater than the critical composite deformation, and during cold rolling compounding, the assembly is uniformly elongated and deformed, the elongated and deformed surfaces of the base layer and the cladding layer metal plate are cracked, and simultaneously, metal powder can be separated to form a composite interface in which the metal powder is dispersed and embedded into the metal plate.
Further, in the step 5, the heating temperature is from the eutectic reaction temperature to the melting temperature of the low-melting-point element, the heat preservation time is 15-60 min, and after the heating is finished, the metal powder, the base metal and the cladding metal are required to perform eutectic reaction to generate a single-layer intermetallic compound. When eutectic reaction occurs between some metals, a plurality of intermetallic compounds are generated, one intermetallic compound is generally generated preferentially when heating, and as the holding time is prolonged, the rest intermetallic compounds are gradually generated between the intermetallic compound and one metal, the intermetallic compound is a brittle phase, and lattice constants of different intermetallic compounds are different, so that the bonding strength between intermetallic compound layers is low, and therefore, when two or more layers of intermetallic compounds are generated, the bonding strength of the intermetallic compound pinned composite interface is remarkably reduced.
Further, metal powder is added above the coating metal plate in the step 3, the base metal plate is covered, and the metal plate is repeatedly overlapped to form a multi-layer assembly, wherein the structure of the assembly is 2-10 layers.
The metal laminated composite plate is prepared by the method for preparing the metal laminated composite plate by utilizing the contact reaction.
The invention has the advantages and beneficial effects
The invention has the advantages and beneficial effects that: the invention provides a process for cold rolling and heating a special rolling mill after intermediate metal powder is preset between metal plates to be compounded, wherein the metal powder and base metal are subjected to contact eutectic reaction during heating, a plurality of welding points and a high-hardness intermetallic compound pinning structure form are formed on a bonding interface, and the interface form greatly improves the bonding strength of the composite plate interface by controlling process parameters of all links, can be used for composite connection of two or more layers of plates, and has the advantages of wide material application range, simple operation and low equipment requirement.
Drawings
FIG. 1 is a flow chart of a process for preparing the metal layered composite plate with high interface bonding strength. Wherein 1 is a steel wire brush, 2 is a metal to be compounded, 3 is intermediate metal powder, 4 is a cold-rolled composite plate, and 5 is a heating furnace.
Fig. 2 shows an inclined plane type concave-convex matching roller, 1 is a concave roller, and 2 is a convex roller.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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 invention.
The preparation method of the metal laminated composite plate provided by the invention utilizes the process of cold rolling and heat treatment of a special rolling mill after the intermediate metal powder is preset between the metal plates to be compounded, and a plurality of welding spots and a high-hardness compound pinning structure form are formed on a bonding interface, so that the metal laminated composite plate with high interface bonding strength is obtained. Compared with the traditional cold rolling composite process, the required rolling phase change amount is lower, the requirement on equipment is low, and the interface bonding strength is high.
Example 1:
3A21 aluminum alloy/6063 aluminum alloy composite panels were prepared.
Step 1: spreading 150-mesh pure copper powder, heating at 1050 deg.C for 30min in a vacuum furnace for removing oxide film, and maintaining the vacuum degree of less than 1.0 × 10-3Pa. Cleaning the surface to be compounded of a 3A21 aluminum alloy plate (length multiplied by width multiplied by thickness which is 200mm multiplied by 50mm multiplied by 1mm) and a 6063 aluminum alloy plate (length multiplied by width multiplied by thickness which is 200mm multiplied by 50mm multiplied by 3mm) by using a handheld laser cleaning device, removing oil stains on the surface, and then polishing the surface to be compounded by using a steel wire brush with the wire diameter of 0.3mm to form a surface hardening layer with the thickness of 10 mu m;
step 2: copper powder with the thickness of 0.2mm is paved on the surface to be compounded of the 6063 aluminum alloy plate, and then the 3A21 aluminum alloy plate is placed above the 6063 aluminum alloy plate to be aligned and superposed to form a blank;
and step 3: putting the assembly into a vacuum diffusion welding furnace for pressurizing, heating and sintering treatment, wherein the pressure is 1MPa, the heating temperature is 400 ℃, the heat preservation time is 20min, and the assembly with relatively fixed positions of metal powder and an aluminum alloy plate is obtained after heating;
and 4, step 4: sending the superposed assembly into a two-roller rolling mill with two rollers with two inclined surfaces at two ends at the rolling speed of 0.05m/s for single-pass cold rolling compounding, wherein the cold rolling deformation is 45 percent, and obtaining a cold rolling compounding interface of copper powder embedded in an aluminum alloy plate;
and 5: heating the cold-rolled composite plate in air atmosphere at 500 ℃, keeping the temperature for 30min, and carrying out eutectic reaction on copper powder and an aluminum alloy plate to generate an intermetallic compound CuAl with the hardness higher than that of the aluminum alloy plate2Finally air-cooling to room temperature to obtain CuAl2The high interface bonding strength 3A21/6063 aluminum alloy laminated composite plate in the form of a structure pinned in the aluminum alloy plate.
The 3A21 aluminum alloy/6063 aluminum alloy composite plate obtained through the steps has good corrosion resistance, the interface bonding strength is 82MPa, and the interface bonding rate is 100%.
Example 2:
a1060 aluminum alloy/6061 aluminum alloy/1060 aluminum alloy composite panel was prepared.
Step 1: spreading pure copper powder with particle size of 200 meshes, heating at 1100 deg.C for 20min in a vacuum furnace with vacuum degree of less than 1.0 × 10-3Pa. Cleaning oil stains on surfaces to be compounded of 1060 aluminum alloy plates (length x width x thickness of 500mm x 50mm x 1mm) and 6061 aluminum alloy plates (length x width x thickness of 500mm x 50mm x 3mm) by using an oil remover, and then grinding the surfaces to be compounded by using a steel wire brush with the wire diameter of 0.5mm to form a surface hardening layer with the thickness of 15 mu m;
step 2: copper powder with the thickness of 0.1mm is paved on the surface to be compounded of the 1060 aluminum alloy plate, then the 6061 aluminum alloy plate is placed above the 1060 aluminum alloy plate to be aligned and superposed, the copper powder with the thickness of 0.1mm is paved on the surface of the 6061 aluminum alloy plate, and then the 1060 aluminum alloy plate is placed above the 1060 aluminum alloy plate to be aligned and superposed to form 1060/6061/1060 group blanks;
and step 3: putting the assembly into a vacuum diffusion welding furnace for pressurizing, heating and sintering treatment, wherein the pressure is 1MPa, the heating temperature is 350 ℃, the heat preservation time is 30min, and the assembly with relatively fixed positions of metal powder and an aluminum alloy plate is obtained after heating;
and 4, step 4: sending the superposed assembly into a two-roller rolling mill with two corrugated rollers at two ends at the rolling speed of 0.02m/s for single-pass cold rolling compounding, wherein the cold rolling deformation is 50 percent, and obtaining a cold rolling compounding interface of copper powder embedded in an aluminum alloy plate;
and 5: heating the cold-rolled composite plate in air atmosphere at 500 ℃, keeping the temperature for 30min, and carrying out eutectic reaction on copper powder and an aluminum alloy plate to generate an intermetallic compound CuAl with the hardness higher than that of the aluminum alloy plate2Finally air-cooling to room temperature to obtain CuAl2High interfacial bonding strength 1060/6061/1060 aluminum alloy layered composite plate in the form of a structure pinned within the aluminum alloy plate.
The 1060/6061/1060 aluminum alloy laminated composite plate obtained through the steps has excellent formability and corrosion resistance, the interface bonding strength is 75MPa, and the interface bonding rate is 100%.
Example 3:
304 stainless steel/Q235 carbon steel composite plates were prepared.
Step 1: titanium powder with the granularity of 150 meshes is flatly paved and placed in a vacuum heating furnace for heating and heat preservation to remove an oxidation film, the heating temperature is 1100 ℃, the heat preservation time is 60min, and the vacuum degree is less than 1.0 multiplied by 10 during heating-3Pa. Cleaning oil stains on a surface to be compounded of a 304 stainless steel plate (length multiplied by width multiplied by thickness multiplied by 200mm multiplied by 40mm multiplied by 0.5mm) and a Q235 carbon steel plate (length multiplied by width multiplied by thickness multiplied by 200mm multiplied by 40mm multiplied by 2mm) by using acetone, and then grinding the surface to be compounded by using a steel wire brush with the wire diameter of 0.5mm to form a surface hardening layer with the thickness of 10 mu m;
step 2: spreading titanium powder with the thickness of 0.5mm on the surface to be compounded of the Q235 carbon steel plate, and then placing the 304 stainless steel plate in an aligned and superposed assembly;
and step 3: putting the assembly into a vacuum diffusion welding furnace for pressurizing, heating and sintering treatment, wherein the pressure is 2MPa, the heating temperature is 1000 ℃, the heat preservation time is 30min, and the assembly with the relatively fixed positions of the metal powder and the steel plate is obtained after heating;
and 4, step 4: sending the superposed assembly into a two-roller mill with corrugated rollers at two ends and a rolling speed of 0.01m/s for single-pass cold rolling compounding, wherein the cold rolling deformation is 60 percent, and obtaining a cold rolling compounding interface of titanium powder embedded in a steel plate;
and 5: heating the cold-rolled composite plate in the air atmosphere at 1200 ℃, keeping the temperature for 30min, carrying out eutectic reaction on titanium powder and the steel plate to generate an intermetallic compound FeTi with the hardness higher than that of the steel plate, and finally air-cooling to room temperature to obtain the high-interface bonding strength 304 stainless steel/Q235 carbon steel laminated composite plate with the structure form that the FeTi is pinned in the steel plate.
The 304 stainless steel/Q235 carbon steel laminated composite plate obtained through the steps has excellent formability and corrosion resistance, the interface bonding strength is 102MPa, and the interface bonding rate is 100%.
The foregoing is merely a detailed description of the embodiments of the present invention, and some of the conventional techniques are not detailed. The scope of the present invention is not limited thereto, and any changes or substitutions that can be easily made by those skilled in the art within the technical scope of the present invention will be covered by the scope of the present invention. The protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A method for preparing a metal laminated composite plate by utilizing a contact reaction is characterized by obtaining the metal laminated composite plate with high interface bonding strength by presetting middle-layer metal powder before cold rolling and compounding, and the method comprises the following steps:
step 1: placing metal powder in a vacuum heating furnace, heating and preserving heat to remove an oxide film on the surface of the powder, cleaning a base metal plate and a cladding metal plate to be compounded at room temperature, and then polishing the surface to be compounded to enable a hardened layer with pits to appear on the surface of the compound;
step 2: spreading metal powder on the surface of the base metal plate, wherein the spreading thickness is 0.1-1 mm, and then placing the coating metal plate above the base metal plate for superposition assembly;
and step 3: carrying out pressure sintering treatment on the assembly to enable the metal powder to be bonded with each other and the surfaces of the metal powder, the base layer and the coating metal plate to be bonded with each other;
and 4, step 4: the assembly is sent into a special double-roller cold rolling mill matched with the concave-convex shape for cold rolling and compounding, so that hardened layers on the surfaces of the base metal plate and the cladding metal plate are cracked, and the metal powder of the middle layer is embedded into an interface hardened layer of the cold-rolled composite plate;
and 5: and heating and insulating the cold-rolled composite plate to enable the metal powder to perform eutectic reaction with the surfaces of the base metal plate and the coating metal plate, wherein the hardness of the generated intermetallic compound is higher than that of the base metal plate and the coating metal plate, so that the metal layered composite plate with high interface bonding strength is formed.
2. The method for preparing a metal laminar composite plate according to claim 1, wherein the metal powder in step 1 is a single or multiple metal powders which can perform eutectic reaction with the metal plate to be composited and generate high-hardness intermetallic compounds, and the particle size of the metal powder is less than or equal to 150 meshes.
3. The method for preparing a metal laminar composite plate by using a contact reaction according to claim 2, wherein the heating temperature of the metal powder in the step 1 is 60-80% of the melting point temperature, the heat preservation time is 30-60 min, and the vacuum degree during heating is 10-2Pa and below.
4. The method for preparing a metal laminated composite plate using a contact reaction as claimed in claim 3, wherein the base metal and the clad metal are the same kind or different kinds of pure metal materials or alloy materials, and the widths of the base metal plate and the clad metal plate are not less than 10mm from the parallel ends of the tailored rolls.
5. The method for preparing the metal laminated composite plate by using the contact reaction according to claim 4, wherein the pressure is 1-5 MPa during pressure sintering, the sintering temperature is 60-90% of the eutectic reaction temperature, and the heat preservation time is 10-60 min.
6. The method for preparing a metal laminated composite plate by using a contact reaction as claimed in claim 5, wherein two ends of the roller of the special double-roller cold rolling mill matched with the special concave-convex shape are inclined plane type, corrugated type or other structures capable of realizing edge sealing.
7. The method for preparing a metal laminar composite plate using a contact reaction according to claim 6, wherein in the step 4, a cold rolling speed is less than 0.1m/s and a cold rolling deformation is more than a critical composite deformation.
8. The method for preparing a metal laminated composite plate by using a contact reaction according to claim 7, wherein the heating temperature in the step 5 is from a eutectic reaction temperature to a melting temperature of the low-melting-point element, the heat preservation time is 15-60 min, and simultaneously the metal powder, the base metal and the cladding metal are subjected to a eutectic reaction to generate a single-layer intermetallic compound after the heating is completed.
9. The method for preparing a metal laminated composite plate by using a contact reaction as claimed in claim 8, wherein the metal powder is added on the clad metal plate in the step 3, and the base metal plate is covered, and the overlapping is repeated in this way to form a multi-layer assembly, and the structure of the assembly is 2-10 layers.
10. A method for preparing a metal laminar composite panel by contact reaction according to any one of claims 1 to 9, further comprising a metal laminar composite panel prepared by the method.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111372595.XA CN114101681A (en) | 2021-11-18 | 2021-11-18 | Method for preparing metal laminated composite plate by using contact reaction |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111372595.XA CN114101681A (en) | 2021-11-18 | 2021-11-18 | Method for preparing metal laminated composite plate by using contact reaction |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107737934A (en) * | 2017-09-26 | 2018-02-27 | 太原理工大学 | A kind of shielding neutron, the preparation method of gamma-ray laminated composite plate |
| CN111054926A (en) * | 2019-12-03 | 2020-04-24 | 同济大学 | Zn solder reinforced interface aluminum/magnesium/aluminum composite board and powder hot-pressing preparation method |
| CN113385534A (en) * | 2021-05-28 | 2021-09-14 | 南京理工大学 | Layered aluminum alloy/aluminum-based composite board and preparation method thereof |
| CN113441724A (en) * | 2021-07-07 | 2021-09-28 | 燕山大学 | Method for preparing aluminum alloy/aluminum-based composite material composite board through powder metallurgy-rolling |
| CN113458400A (en) * | 2021-07-23 | 2021-10-01 | 中北大学 | Ti-Al3Ti intermetallic compound laminated composite board preparation method |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107737934A (en) * | 2017-09-26 | 2018-02-27 | 太原理工大学 | A kind of shielding neutron, the preparation method of gamma-ray laminated composite plate |
| CN111054926A (en) * | 2019-12-03 | 2020-04-24 | 同济大学 | Zn solder reinforced interface aluminum/magnesium/aluminum composite board and powder hot-pressing preparation method |
| CN113385534A (en) * | 2021-05-28 | 2021-09-14 | 南京理工大学 | Layered aluminum alloy/aluminum-based composite board and preparation method thereof |
| CN113441724A (en) * | 2021-07-07 | 2021-09-28 | 燕山大学 | Method for preparing aluminum alloy/aluminum-based composite material composite board through powder metallurgy-rolling |
| CN113458400A (en) * | 2021-07-23 | 2021-10-01 | 中北大学 | Ti-Al3Ti intermetallic compound laminated composite board preparation method |
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