CN114228271B - Brazing sheet for brazing titanium alloy plate-fin radiator as well as preparation method and application thereof - Google Patents

Brazing sheet for brazing titanium alloy plate-fin radiator as well as preparation method and application thereof Download PDF

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Publication number
CN114228271B
CN114228271B CN202111629871.6A CN202111629871A CN114228271B CN 114228271 B CN114228271 B CN 114228271B CN 202111629871 A CN202111629871 A CN 202111629871A CN 114228271 B CN114228271 B CN 114228271B
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brazing
titanium
plate
fin radiator
bonding metal
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CN114228271A (en
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钟素娟
黄俊兰
李秀朋
沈元勋
纠永涛
李云月
李文彬
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Zhengzhou Research Institute of Mechanical Engineering Co Ltd
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Zhengzhou Research Institute of Mechanical Engineering Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K1/00—Soldering, e.g. brazing, or unsoldering
    • B23K1/0008—Soldering, e.g. brazing, or unsoldering specially adapted for particular articles or work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B32B37/1284—Application of adhesive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C14/00—Alloys based on titanium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C16/00—Alloys based on zirconium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C30/00—Alloys containing less than 50% by weight of each constituent
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C30/00—Alloys containing less than 50% by weight of each constituent
    • C22C30/02—Alloys containing less than 50% by weight of each constituent containing copper
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C9/00—Alloys based on copper
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
    • C23C2/08—Tin or alloys based thereon
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/26—After-treatment
    • C23C2/28—Thermal after-treatment, e.g. treatment in oil bath
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/34—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the shape of the material to be treated
    • C23C2/36—Elongated material
    • C23C2/40—Plates; Strips
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
    • F28F3/06—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being attachable to the element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/08—Non-ferrous metals or alloys
    • B23K2103/14—Titanium or alloys thereof

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
  • Laminated Bodies (AREA)

Abstract

The invention belongs to the technical field of brazing materials, and particularly relates to a brazing plate for brazing a titanium alloy plate-fin radiator, and a preparation method and application thereof. The invention relates to a brazing plate for brazing a titanium alloy plate-fin radiator, which comprises a core plate and bonding metal layers respectively compounded on the plate surfaces on two sides of the core plate; the bonding metal layer is compounded with a titanium-based amorphous solder layer; the core plate is a titanium plate; the bonding metal layer is Sn or SnAgCu soft solder. According to the brazing sheet for brazing the titanium alloy plate fin radiator, sn or SnAgCu soft solder with a low melting point is selected as the bonding metal layer, the titanium-based amorphous solder layer and the core plate are compounded to prepare the brazing sheet, the working procedures of cutting and pasting the titanium-based amorphous solder can be omitted during brazing, the efficiency is high, the waste of the titanium-based amorphous solder is avoided, and the production cost is reduced.

Description

Brazing sheet for brazing titanium alloy plate-fin radiator as well as preparation method and application thereof
Technical Field
The invention belongs to the technical field of brazing materials, and particularly relates to a brazing plate for brazing a titanium alloy plate-fin radiator, and a preparation method and application thereof.
Background
Titanium and titanium alloys are commonly used for manufacturing high quality plate fin heat sinks because of their low density, high strength, corrosion resistance, fatigue resistance, high specific strength, and the like. The core body of the titanium alloy plate-fin radiator mainly comprises fins, a partition plate, sealing strips and side plates. A titanium alloy plate-fin heat sink is composed of about hundreds of fins and hundreds of separators. The thickness of the fin is generally 0.1-0.15 mm, and the fin is made of one of TA1, TA2 and TA 3.
The structural materials of the titanium alloy plate-fin radiator are titanium and titanium alloy, and the core body of the titanium alloy plate-fin radiator needs to be subjected to vacuum brazing. The vacuum brazing of the core body is mainly the vacuum brazing of the fins and the partition boards, during brazing, titanium-based amorphous brazing filler metal is cut into a size similar to that of the partition boards, and one piece of amorphous brazing filler metal is adhered to the upper surface and the lower surface of each partition board and then assembled and fixed with the fins. The cutting and pasting procedures of the titanium-based amorphous solder are complicated and take longer time, so that the brazing efficiency is lower; the price of the titanium-based amorphous solder is higher, generally about 2 ten thousand yuan/kg, and the solder is cut for many times, so that the waste of the solder caused by human factors is avoided, and the brazing cost is increased.
Meanwhile, the titanium-based amorphous solder is adhered to the partition board by using an organic adhesive (such as 502 glue), and during vacuum brazing, toxic gas can be generated, residues are unavoidable, and further the brazing connection quality is affected.
Disclosure of Invention
The invention aims to provide a brazing sheet for brazing a titanium alloy plate fin radiator, which can improve brazing efficiency, reduce brazing filler metal waste and improve brazing quality when being used as a separator of the titanium alloy plate fin radiator.
The second object of the invention is to provide a method for preparing the brazing sheet for brazing the titanium alloy plate-fin radiator.
A third object of the present invention is to provide a use of the brazing sheet for brazing a titanium alloy plate fin radiator as described above as a separator for a plate fin radiator.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
a brazing sheet for brazing a titanium alloy plate-fin radiator comprises a core plate and bonding metal layers respectively compounded on two side plate surfaces of the core plate; the bonding metal layer is compounded with a titanium-based amorphous solder layer; the core plate is a titanium plate; the bonding metal layer is Sn or SnAgCu soft solder.
According to the brazing sheet for brazing the titanium alloy plate fin radiator, the Sn or SnAgCu soft solder with a lower melting point is selected as the bonding metal layer, the titanium-based amorphous solder layer and the core plate are compounded to prepare the brazing sheet, and the working procedures of cutting and pasting the titanium-based amorphous solder can be omitted during brazing, so that the efficiency is high, the waste of the titanium-based amorphous solder is avoided, and the production cost is reduced; in addition, the Sn has little influence on the phase transition temperature of the titanium plate, and the phase change of the titanium plate is not caused, so that the original performance of the titanium plate can be maintained; and the melting point of Sn is lower, so that the brazing temperature can be reduced to a certain extent, and the oxidation degree of the titanium plate is reduced.
Further, the titanium-based amorphous solder is prepared by a method comprising the following steps: smelting and melt-spinning the components forming the solder. Still further, the smelting is performed in a non-consumable vacuum melting furnace. The melt-spinning is carried out in a vacuum melting melt-spinning machine.
Further, the titanium-based amorphous solder layer is one of Ti-25Zr-50Cu、Ti-37.5Zr-15Cu-10Ni、Ti-35Zr-15Cu-15Ni、Ti-48Zr-4Be、Zr-11Ti-13Cu-14Ni、Zr-11Ti-12Cu-14Ni-2Nb-1.5Be. Taking Ti-25Zr-50Cu as an example, the Ti-25Zr-50Cu comprises the following components in percentage by mass: 25wt% of Zr element, 50wt% of Cu element and the balance of Ti element.
Further, the core plate is one of TA1, TA2 and TA 3. The thickness of the core plate is 150-200 mu m. The 150-200 μm core plate can completely replace the separator in the conventional radiator.
Further, the thickness of the bonding metal layer is 6-10 μm. In the brazing process, the bonding metal layer with the thickness of 6-10 mu m can be subjected to phase diffusion with the titanium-based amorphous brazing filler metal layer on the same side, and in-situ bonding is performed to form the low-melting brazing filler metal.
Further, the thickness of the titanium-based amorphous solder layer is 20-30 mu m. The titanium-based amorphous solder layer with the thickness of 20-30 mu m can be combined with the bonding metal layer on the same side in situ to form the low-melting solder.
The technical scheme adopted by the preparation method of the brazing sheet for brazing the titanium alloy plate-fin radiator is as follows:
The preparation method of the brazing sheet for brazing the titanium alloy plate-fin radiator comprises the following steps of: and stacking bonding metal layers and titanium-based amorphous brazing filler metal layers on the two side plate surfaces of the core plate in sequence, and then heating and pressurizing for compounding.
The preparation method of the brazing sheet for brazing the titanium alloy plate-fin radiator has the advantages of simple preparation process and high efficiency, and is suitable for industrial mass production.
Further, the stacking comprises: forming bonding metal layers on two side plate surfaces of the core plate through bonding metal melt; and coating bonding metal melt on one surface of the titanium-based amorphous solder, which is compounded with the core plate, to form a titanium-based amorphous solder layer with a bonding metal layer on one side, and then stacking the titanium-based amorphous solder layer with the bonding metal layer on the core plate. Still further, the coating is brushing. When stacking, one side of the titanium-based amorphous solder layer with the bonding metal layer is attached to the core plate with the bonding metal layers on both sides.
The Sn or SnAgCu soft solder melt has good hot dip plating characteristics, and can form firm bonding metal layers on the two side plate surfaces of the core plate.
Further, before coating the bonding metal melt on the surface of the titanium-based amorphous solder, which is compounded with the core plate, the titanium-based amorphous solder is heated. Further, the titanium-based amorphous solder is heated to 220-250 ℃.
Further, in order to uniformly coat the bonding molten metal on both side plate surfaces of the core plate, the speed of the core plate passing through the bonding molten metal is 30-50 mm/s. The thickness of the bonding metal layer formed on both side plate surfaces of the core plate is 3-5 μm. The thickness of the bonding metal layer formed on the surface of the titanium-based amorphous solder layer, which is compounded with the core plate, is 3-5 mu m.
Further, the bonding metal melt is prepared by a method comprising the following steps: the bonding metal is heated to melt the bonding metal into a bonding metal melt. Further, the bonding metal is heated to 220-250 ℃. Still further, the heating of the bond metal is performed in a tin plating bath. The core plate passes through the bonding molten metal in the tinning bath.
Further, in order to more fully compound the titanium-based amorphous solder layer, the bonding metal layer and the core plate, the heating temperature after stacking the bonding metal layer and the titanium-based amorphous solder layer on the two side plate surfaces of the core plate in sequence is 220-250 ℃, and the pressurizing pressure is 0.3-5 MPa. Further, the pressurizing time is 20-30 min.
The technical scheme adopted by the brazing sheet for brazing the titanium alloy plate-fin radiator is as follows:
the brazing sheet for brazing the titanium alloy plate-fin radiator is used as a separator of the plate-fin radiator. The brazing sheet for brazing the titanium alloy plate-fin radiator has high production efficiency and lower cost.
Drawings
FIG. 1 is a schematic structural view of a brazing sheet for brazing a titanium alloy plate-fin radiator in example 1 of the present invention, 1 being a Ti-25Zr-50Cu layer, 2 being a Sn layer, 3 being a TA1 titanium plate;
fig. 2 is a process route diagram of a brazing sheet for brazing a titanium alloy plate fin radiator in example 7 of the present invention, 1 is a Ti-25Zr-50Cu layer, 2 is a first Sn layer, 3 is a second Sn layer, 4 is a rolling mill, 5 is a TA1 titanium plate, 6 is a tin plating tank, 7 is a tunnel furnace, and 8 is a winder;
fig. 3 is a macro-morphology diagram of the titanium alloy plate-fin heat sink in example 8 of the present invention.
Detailed Description
The invention is further illustrated by the following examples. In the embodiment of the invention, the SnAgCu soft solder comprises the following components: sn-3.5Ag-0.7Cu, namely 3.5wt% of Ag element, 0.7wt% of Cu element and the balance of Sn.
1. Examples of brazing sheet for brazing titanium alloy plate fin radiator
Example 1
The brazing sheet for brazing the titanium alloy plate fin radiator is in a five-layer sandwich shape, as shown in fig. 1, two surface layers are titanium-based amorphous brazing filler metal layers 1, two outer layers are bonding metal layers 2, a core plate is a titanium plate 3, wherein the titanium-based amorphous brazing filler metal layers are Ti-25Zr-50Cu, and the thickness is 20 mu m; the bonding metal layer is Sn, and the thickness is 6 mu m; the core plate is a TA1 titanium plate with the thickness of 150 mu m.
Example 2
The brazing sheet for brazing the titanium alloy plate fin radiator is in a five-layer sandwich shape, two surface layers are titanium-based amorphous brazing material layers, two outer layers are bonding metal layers, a core plate is a titanium plate, wherein the titanium-based amorphous brazing material layers are Ti-37.5Zr-15Cu-10Ni, and the thickness is 25 mu m; the bonding metal layer is Sn, and the thickness is 7 mu m; the core plate is a TA2 titanium plate with the thickness of 160 mu m.
Example 3
The brazing sheet for brazing the titanium alloy plate fin radiator is in a five-layer sandwich shape, two surface layers are titanium-based amorphous brazing material layers, two outer layers are bonding metal layers, a core plate is a titanium plate, wherein the titanium-based amorphous brazing material layers are Ti-35Zr-15Cu-15Ni, and the thickness is 28 mu m; the bonding metal layer is Sn, and the thickness is 8 mu m; the core plate is a TA3 titanium plate with the thickness of 180 mu m.
Example 4
The brazing sheet for brazing the titanium alloy plate fin radiator is in a five-layer sandwich shape, two surface layers are titanium-based amorphous brazing material layers, two outer layers are bonding metal layers, a core plate is a titanium plate, wherein the titanium-based amorphous brazing material layers are Ti-48Zr-4Be, and the thickness is 30 mu m; the bonding metal layer is SnAgCu soft solder with the thickness of 10 mu m; the core plate is a TA1 titanium plate with the thickness of 200 mu m.
Example 5
The brazing sheet for brazing the titanium alloy plate fin radiator is in a five-layer sandwich shape, two surface layers are titanium-based amorphous brazing material layers, two outer layers are bonding metal layers, a core plate is a titanium plate, wherein the titanium-based amorphous brazing material layers are Zr-11Ti-13Cu-14Ni, and the thickness is 20 mu m; the bonding metal layer is SnAgCu soft solder with the thickness of 8 mu m; the core plate is a TA2 titanium plate with the thickness of 150 mu m.
Example 6
The brazing sheet for brazing the titanium alloy plate fin radiator is in a five-layer sandwich shape, two surface layers are titanium-based amorphous brazing material layers, two outer layers are bonding metal layers, a core plate is a titanium plate, wherein the titanium-based amorphous brazing material layers are Zr-11Ti-12Cu-14Ni-2Nb-1.5Be, and the thickness is 25 mu m; the bonding metal layer is SnAgCu soft solder with the thickness of 10 mu m; the core plate is a TA3 titanium plate with the thickness of 200 mu m.
2. Examples of methods of preparing brazing sheets for brazing titanium alloy plate-fin heatsinks
Example 7
This example is a method for producing a brazing sheet for brazing a titanium alloy plate-fin radiator in example 1, comprising the steps of:
1) Weighing each component according to the stoichiometric ratio of the titanium-based amorphous solder, and smelting each component by a non-consumable vacuum smelting furnace, and making a 20 mu m Ti-25Zr-50Cu solder by a vacuum melting melt-spinning machine;
2) Placing bonding metal Sn in a tinning tank, heating to 250 ℃, and melting into Sn melt;
3) Heating the Ti-25Zr-50Cu solder prepared in the step 1) to 220 ℃, and uniformly brushing Sn melt on the surface of the two Ti-25Zr-50Cu solders, which is compounded with the titanium plate, to form a Ti-25Zr-50Cu layer with a first Sn layer of 3 mu m on one side;
4) Passing the TA1 titanium plate from the rolling mill through the tin plating tank containing the Sn melt in the step 2) at a speed of 50mm/s, and forming second Sn layers of 3 mu m on the two side plate surfaces of the TA1 titanium plate respectively;
In other cases, on the basis of the embodiment, the titanium plate coming out of the rolling mill is passed through the tin plating tank containing the Sn melt in the step 2) at a speed of 30mm/s or 40mm/s, and a second Sn layer of 3-5 μm can be formed on the two side plate surfaces of the titanium plate;
5) And (3) heating the two Ti-25Zr-50Cu layers compounded with the first Sn layer obtained in the step (3) and the TA1 titanium plate compounded with the second Sn layer on the two side plate surfaces obtained in the step (4) to 240 ℃ through a tunnel furnace, compounding under the pressure of 0.3MPa, and maintaining the pressure for 20min according to the sequence of the Ti-25Zr-50Cu layers, the first Sn layer, the second Sn layer, the TA1 titanium plate, the second Sn layer, the first Sn layer and the Ti-25Zr-50Cu layers from top to bottom.
In other cases, on the basis of the embodiment, the tunnel furnace in the step 5) is heated to 220 ℃, 230 ℃ or 250 ℃, and is pressurized for 0.5MPa, 1MPa, 2MPa, 3MPa, 4MPa or 5MPa for compounding, and the pressure is maintained for 25min or 30min, so that the brazing sheet for brazing the titanium alloy plate fin radiator similar to the embodiment can be obtained.
In the process route and the use state of the brazing sheet for brazing the titanium alloy plate fin radiator in this embodiment are shown in fig. 2, in the process of preparing the brazing sheet for brazing the titanium alloy plate fin radiator, a TA1 titanium sheet 5 from a rolling mill 4 is passed through tin plating grooves 6 containing Sn melt, second Sn layers 3 are formed on two side plate surfaces of the titanium sheet, the composite surfaces of two Ti-25Zr-50Cu layers 1 and the TA1 titanium sheet 5 are uniformly brushed with Sn melt to form a Ti-25Zr-50Cu layer 1 with a first Sn layer 2 on one side, the Ti-25Zr-50Cu layer 1, the first Sn layer 2, the second Sn layer 3, the TA1 titanium sheet 5, the second Sn layer 3, the first Sn layer 2 and the Ti-25Zr-50Cu layer 1 are sequentially stacked in order from top to bottom, the stacked five-layer sandwich brazing sheet is sandwiched by two pressing plates, the two pressing plates are fastened by screws on the two side of the pressing plates, the pressing plates enter a tunnel furnace 7, heating and pressurizing are performed, and finally the pressing plates are rolled up after the tunnel furnace is discharged, and finally the brazing sheet for brazing the titanium alloy fin radiator is obtained by a rolling machine 8.
With reference to the method of example 7, the brazing sheet products of examples 2-6 can be prepared accordingly.
3. Examples of application of brazing sheet for brazing titanium alloy plate-fin radiator
Example 8
The brazing sheet for brazing the titanium alloy plate-fin radiator of example 1 was used as a separator for the titanium alloy plate-fin radiator, and a macroscopic morphology diagram of the titanium alloy plate-fin radiator is shown in fig. 3. The separator may be directly brazed to the fins.
4. Experimental example
Experimental example 1
The brazing sheets for brazing the titanium alloy plate fin radiator in the embodiments 1 to 6 are compounded by means of diffusion of liquid Sn or SnAgCu soft solder and a titanium plate base material to form metallurgical bonding between the layers, the peel strength between the brazing sheets is tested according to the method of GB/T7122-199690 DEG peel strength test, each sample is tested 5 times, and the test results are shown in Table 1.
Table 1 peel strength of brazing sheet for brazing titanium alloy plate-fin heat sink in examples 1 to 6
As can be seen from Table 1, the peel strength of the brazing sheet for brazing the titanium alloy plate-fin radiator in examples 1 to 6 is greater than 18.5MPa, and the later rolling requirements are satisfied.
Experimental example 2
A vacuum brazing titanium alloy plate-fin radiator dummy was prepared with dimensions of 500X 400X 0.15mm (100 fins, 100 separators) using Ti-25Zr-50Cu titanium-based amorphous solder and the brazing sheet for brazing the titanium alloy plate-fin radiator of example 1, respectively. The conditions for vacuum brazing are: vacuum degree is 6X 10 -3 Pa, brazing temperature of Ti-25Zr-50Cu titanium-based amorphous solder is 900 ℃, and heat preservation is carried out for 10min; the brazing temperature of the brazing sheet in example 1 was 870 c and was kept for 10min. The scheme of layer-by-layer brazing is adopted during brazing: and assembling a layer of fins on one layer of brazing plate or one layer of partition plate, and integrally feeding the assembled fins into a furnace to complete one-time brazing.
During brazing, the brazing sheet in the embodiment 1 is directly cut into a proper size for use, and the Ti-25Zr-50Cu titanium-based amorphous brazing filler metal is cut into 200 pieces matched with the surface size of the partition plate, and then the 200 pieces are adhered to the upper surface and the lower surface of the titanium plate for assembly and fixation. 10 dummy pieces were brazed, the assembly efficiency of the two modes was compared with the amount of the titanium-based amorphous solder, and the comparison results are shown in table 2 (the thickness of each of the Ti-25Zr-50Cu solder and the conventional Ti-25Zr-50Cu solder on the brazing sheet in example 1 was 25 μm, the densities were 6.65g/cm 3, and the amount of the titanium-based amorphous solder on 1 separator was 50×40×0.0025×6.65×2=66.5 g).
TABLE 2 physical parameters of each simulation element assembled in different ways
As can be seen from table 2, when the brazing sheet in example 1 brazes the simulation pieces of the titanium alloy plate fin radiator, the amount of the titanium-based amorphous solder per simulation piece is reduced by 7.2g, and when the price of the titanium-based amorphous solder is 20000 yuan/kg, the cost per simulation piece can be saved by 144 yuan. In addition, since the brazing sheet in example 1 was high in brazing efficiency, it was possible to reduce the number of assembling steps by 3.4 hours for each dummy member.

Claims (10)

1. The brazing sheet for brazing the titanium alloy plate-fin radiator is characterized by comprising a core plate and bonding metal layers respectively compounded on the two side plate surfaces of the core plate; the bonding metal layer is compounded with a titanium-based amorphous solder layer; the core plate is a titanium plate; the bonding metal layer is Sn or SnAgCu soft solder; the compounding is hot-pressing compounding.
2. The brazing sheet for brazing a titanium alloy plate fin radiator according to claim 1, wherein the titanium-based amorphous brazing filler metal layer is one of Ti-25Zr-50Cu、Ti-37 .5Zr-15Cu-10Ni、Ti-35Zr-15Cu-15Ni、Ti-48Zr-4Be、Zr-11Ti-13Cu-14Ni、Zr-11Ti-12Cu-14Ni-2Nb-1.5Be.
3. The brazing sheet for brazing a titanium alloy plate fin radiator according to claim 1, wherein the core sheet is one of TA1, TA2, TA 3; the thickness of the core plate is 150-200 mu m.
4. The brazing sheet for brazing a titanium alloy plate fin radiator according to claim 1, wherein the thickness of the bonding metal layer is 6 to 10 μm.
5. The brazing sheet for brazing a titanium alloy plate fin radiator according to any one of claims 1 to 4, wherein the thickness of the titanium-based amorphous brazing material layer is 20 to 30 μm.
6. A method for producing a brazing sheet for brazing a titanium alloy plate-fin radiator according to any one of claims 1 to 5, comprising the steps of: and stacking bonding metal layers and titanium-based amorphous brazing filler metal layers on the two side plate surfaces of the core plate in sequence, and then heating and pressurizing for compounding.
7. The method of manufacturing a brazing sheet for brazing a titanium alloy plate fin radiator according to claim 6, wherein the stacking includes: forming bonding metal layers on two side plate surfaces of the core plate through bonding metal melt; and coating bonding metal melt on one surface of the titanium-based amorphous solder, which is compounded with the core plate, to form a titanium-based amorphous solder layer with a bonding metal layer on one side, and then stacking the titanium-based amorphous solder layer with the bonding metal layer on the core plate.
8. The method for producing a brazing sheet for brazing a titanium alloy plate-fin radiator according to claim 7, wherein the speed of the core plate by bonding the molten metal is 30 to 50mm/s; the thickness of the bonding metal layer formed on the two side plate surfaces of the core plate is 3-5 mu m; the thickness of the bonding metal layer formed on the surface of the titanium-based amorphous solder layer, which is compounded with the core plate, is 3-5 mu m.
9. The method for producing a brazing sheet for brazing a titanium alloy plate-fin radiator according to claim 6, wherein the heating temperature is 220 to 250 ℃ and the pressurizing pressure is 0.3 to 5MPa.
10. Use of a brazing sheet for brazing a titanium alloy plate fin radiator as defined in any one of claims 1 to 5 as a separator for a plate fin radiator.
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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005098617A (en) * 2003-09-25 2005-04-14 Japan Atom Energy Res Inst Laminated structure strengthening method by two-layer brazing and soldering
CN101623785A (en) * 2008-07-08 2010-01-13 中国科学院金属研究所 Method for brazing compact efficient titanium alloy plate-fin heat exchanger
WO2012113297A1 (en) * 2011-02-22 2012-08-30 中国科学院微电子研究所 Multi-layer hybrid synchronous bonding structure and method for three-dimensional packaging
CN102748980A (en) * 2012-07-26 2012-10-24 无锡冠云铝业有限公司 High covering rate ultra-thin brazing aluminum alloy composite board
CN102814600A (en) * 2012-08-28 2012-12-12 广州有色金属研究院 Amorphous foil brazing filler metal for ceramic braze welding
CN103273157A (en) * 2013-05-31 2013-09-04 哈尔滨工业大学 Method for accelerating metallurgical bonding of Zr-based bulk metallic glass and Sn-based solder
CN104084710A (en) * 2014-06-16 2014-10-08 郑州大学 Titanium-based amorphous brazing filler metal and preparation method thereof as well as brazing method of TC4 titanium alloy
JP2020192560A (en) * 2019-05-27 2020-12-03 千住金属工業株式会社 Solder paste and flux for solder paste
CN112453760A (en) * 2020-10-30 2021-03-09 中国航发北京航空材料研究院 Titanium-based brazing filler metal and method for preparing pure titanium multilayer structure by using same

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090288811A1 (en) * 2008-05-20 2009-11-26 Bolla James D Aluminum plate-fin heat exchanger utilizing titanium separator plates
US20150174704A1 (en) * 2013-12-20 2015-06-25 Lucas-Milhaupt, Inc. VOC Exempt Brazing Binder System

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005098617A (en) * 2003-09-25 2005-04-14 Japan Atom Energy Res Inst Laminated structure strengthening method by two-layer brazing and soldering
CN101623785A (en) * 2008-07-08 2010-01-13 中国科学院金属研究所 Method for brazing compact efficient titanium alloy plate-fin heat exchanger
WO2012113297A1 (en) * 2011-02-22 2012-08-30 中国科学院微电子研究所 Multi-layer hybrid synchronous bonding structure and method for three-dimensional packaging
CN102748980A (en) * 2012-07-26 2012-10-24 无锡冠云铝业有限公司 High covering rate ultra-thin brazing aluminum alloy composite board
CN102814600A (en) * 2012-08-28 2012-12-12 广州有色金属研究院 Amorphous foil brazing filler metal for ceramic braze welding
CN103273157A (en) * 2013-05-31 2013-09-04 哈尔滨工业大学 Method for accelerating metallurgical bonding of Zr-based bulk metallic glass and Sn-based solder
CN104084710A (en) * 2014-06-16 2014-10-08 郑州大学 Titanium-based amorphous brazing filler metal and preparation method thereof as well as brazing method of TC4 titanium alloy
JP2020192560A (en) * 2019-05-27 2020-12-03 千住金属工業株式会社 Solder paste and flux for solder paste
CN112453760A (en) * 2020-10-30 2021-03-09 中国航发北京航空材料研究院 Titanium-based brazing filler metal and method for preparing pure titanium multilayer structure by using same

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