CN115070189B - Explosion welding preparation method of hollow runner - Google Patents
Explosion welding preparation method of hollow runner Download PDFInfo
- Publication number
- CN115070189B CN115070189B CN202210753390.4A CN202210753390A CN115070189B CN 115070189 B CN115070189 B CN 115070189B CN 202210753390 A CN202210753390 A CN 202210753390A CN 115070189 B CN115070189 B CN 115070189B
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- Prior art keywords
- runner
- explosion welding
- hollow
- substrate
- filling material
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- 238000003466 welding Methods 0.000 title claims abstract description 43
- 238000004880 explosion Methods 0.000 title claims abstract description 37
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 34
- 238000000034 method Methods 0.000 claims abstract description 16
- 238000003754 machining Methods 0.000 claims abstract description 15
- 239000000758 substrate Substances 0.000 claims abstract description 15
- 229910052751 metal Inorganic materials 0.000 claims abstract description 12
- 239000002184 metal Substances 0.000 claims abstract description 12
- 238000004519 manufacturing process Methods 0.000 claims abstract description 6
- 150000002739 metals Chemical class 0.000 claims abstract description 4
- 239000002131 composite material Substances 0.000 claims description 12
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 abstract description 4
- 238000007781 pre-processing Methods 0.000 abstract description 2
- 239000002360 explosive Substances 0.000 description 8
- 238000001816 cooling Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000002905 metal composite material Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 238000001513 hot isostatic pressing Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Classifications
-
- 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
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/06—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating by means of high energy impulses, e.g. magnetic energy
- B23K20/08—Explosive welding
-
- 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
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/24—Preliminary treatment
-
- 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
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/26—Auxiliary equipment
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
The invention discloses an explosion welding preparation method of a hollow runner. The method adopts high intelligent filling material during explosion welding and performs runner pretreatment on the substrate. The high intelligent filling material has high strength and metallurgical characteristics, avoids cracks at the corners of the runner caused by deformation of the runner, compound plate depression or stress wave after welding, and can be softened and taken out under certain conditions to form the runner; the runner pretreatment is a process of preparing runners with complex morphology and filling materials by preprocessing the runners on a substrate by a machining means before explosion welding. In addition, the explosion welding preparation method of the hollow runner can realize the manufacture of runners between large-size dissimilar metals.
Description
Technical Field
The invention belongs to the field of manufacturing of metal composite plates, and particularly relates to an explosion welding preparation method of a hollow runner.
Background
The explosion welding is a technology that a clad plate collides with a base plate under the drive of energy generated by the detonation action of explosive, and metal materials at the collision interface are plastically deformed and melted, so that strong metallurgical bonding is obtained. In recent years, the explosion welding metal composite board has wide application in the fields of nuclear industry, chemical industry and the like due to excellent physical and chemical properties, and creates great social value. The water cooling plate is one heat exchange element with liquid cooling, and has the principle that flow passage is formed inside metal plate, electronic element is installed on the surface of the plate, and cooling liquid enters from the inlet and exits from the outlet of the plate to take away the heat from the element.
Common processes for water-cooled panel manufacture currently include hot isostatic pressing and electron beam welding, however, the former product grain grows excessively, ages, loses material critical properties, and the latter is difficult to obtain large-size components, and the weld is exposed to plasma. Aiming at the problem, a novel water-cooling plate and a processing technology of the water-cooling plate, which are disclosed in Chinese patent CN202111662664.0, adopt a bolt connection method; chinese patent CN202010642254.9 discloses a water-cooled plate welding process and a fixture for welding a water-cooled plate, and the manufacture of the water-cooled plate is achieved by friction welding. However, the bonding strength of the water cooling plate cannot meet the standard of metallurgical bonding, and the service life is limited; the latter is cumbersome in process, poor in welding quality, and difficult to achieve large-area panel welding.
Disclosure of Invention
The explosion welding preparation method of the hollow runner overcomes the restriction factor of runner preparation, realizes the preparation of the hollow runner by preparing a high intelligent filling material and runner pretreatment, improves the bonding strength of products, prolongs the service life of materials and simultaneously realizes the bonding between large-area dissimilar metals.
The technical scheme of the invention is that the high-intelligent filling material is prepared, has high strength and metallurgical characteristics, avoids cracks at runner corners caused by deformation of runners, compound plate recession or stress wave after welding, and can be softened and taken out under certain conditions. And (3) preprocessing the flow channel structure on the substrate by using a machining method, filling the high-intelligent filling material according to a gradient, and then performing explosive welding to prepare the hollow flow channel composite board.
The high intelligent filling material is formed by mixing metal powder with a melting point lower than that of the substrate and the compound plate material and metal powder with a density and strength close to those of the substrate material. The runner pretreatment comprises the steps of machining a runner on the surface of a substrate by a machining method before explosion welding, and filling high-intelligent filling materials, wherein the internal structure of the runner is required to be communicated, and the thickness of the high-intelligent filling materials after the machining is finished is consistent with the height of the runner.
Wherein, the proportion of different materials in the high intelligent filling material is distributed in a gradient way along with the position of the high intelligent filling material, and the proportion of the low melting point metal powder is lower as the high intelligent filling material is closer to the surface.
The runner pretreatment is positioned in the substrate, and peripheral edge parts serving as machining allowance are cut off after the explosion welding is finished.
The invention has the advantages that: 1) The deformation of the flow channel caused by huge interface pressure in the explosion welding process is avoided, the preparation of the hollow flow channel of dissimilar metals with large size and complex structure is realized, and a new way for preparing the hollow flow channel is provided. 2) The bonding strength of the hollow runner composite board is improved, and the service life of the material is prolonged.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application.
Fig. 1 is a schematic view of the explosive welding of the present invention.
In fig. 1, 1-detonator, 2-explosive, 3-doubler, 4-gap support, 5-base plate, 6-foundation, 7-runner.
Fig. 2 is a schematic view of the flow path structure in embodiment 1.
FIG. 3 shows the results of the flow channel explosion welding in example 1.
FIG. 4 is a photograph of the bond interface microstructure of example 1.
Fig. 5 is a schematic view of a flow channel structure of embodiment 2.
FIG. 6 is a graph showing the results of the detection of the preparation results of the flow channel in example 2.
Detailed Description
The invention will be further described with reference to the accompanying drawings and specific examples.
The purpose of the invention is that: the explosion welding preparation method for the hollow runner is provided, the problems that the interface pressure is too large and the runner deformation is not easy to control are solved, and the hollow runner composite board with a complex structure and large size and uniform welding is prepared.
Example 1
The metal foil explosion welding method and the device are shown in fig. 1. For aluminum and steel, wherein the base plate is steel, the dimensions are 400mm×400mm×10mm, the composite plate is aluminum, and the dimensions are 500mm×500mm×3mm.
The explosive 2 is emulsion explosive with density of 0.75g/cm 3, explosion speed of about 2500m/s and thickness of 10mm. The gap support 4 has a height of 5mm. The high intelligent filling material is formed by mixing tin powder and iron powder, and the surface of the substrate is subjected to runner pretreatment by using a machining method, wherein the cross section size of the runner is 6mm multiplied by 8mm, and the structure and the size of the runner are shown in figure 2. Filling high intelligent filling materials in the flow channel, wherein the flow channel is divided into 5 equal parts, the proportion of tin powder in the filling materials is respectively 90%, 70%, 50%, 30% and 10% from bottom to top, the filling materials are compacted in the prefabricated flow channel through a jack and a pressing bar with the same shape and size as the flow channel, and the surface of the substrate is polished and leveled by a machining method and then cleaned.
Referring to fig. 1, the explosion welding device is assembled, placed on a foundation 6, explosion welding is performed to obtain a composite plate, machining allowance of the cut edge is exposed to a flow passage structure as shown in fig. 2, then the rest composite plate is heated to 300 ℃, tin powder is poured out after being changed into a molten state, a hollow flow passage is formed, and the composite plate is washed clean with water.
After the explosion is completed, the aluminum plate and the steel plate are successfully compounded, as shown in fig. 3, the shape of the runner is ensured to be complete, and no crack appears at the corners. As shown in fig. 4, the bonding interface exhibited a typical explosion welded bonding surface structure as measured by SEM.
Example 2
The metal foil explosion welding method and the device are shown in fig. 1. Wherein the base plate and the compound plate are made of steel materials, and the sizes are respectively 350mm multiplied by 10mm and 450mm multiplied by 3mm.
The explosive 2 is emulsion explosive with density of 0.75g/cm 3, explosion speed of about 2500m/s and thickness of 10mm. The gap support 4 has a height of 5mm. The high intelligent filling material is formed by mixing tin powder and iron powder, and the surface of the substrate is subjected to runner pretreatment by using a machining method, wherein the cross section size of the runner is 5mm multiplied by 9mm, and the structure and the size of the runner are shown in figure 5. And then polishing, cleaning and leveling, and filling a high intelligent filling material in the runner, wherein the runner is equally divided into 9 parts, the proportion of tin powder in the filling material is respectively 90%, 80%, 70%, 60%, 50%, 40%, 30%, 20% and 10% from bottom to top, the filling material is compacted in a prefabricated runner through a jack and a pressing bar with the same shape and size as the runner, and the surface of the substrate is polished and leveled by a machining method and then cleaned.
Referring to fig. 1, the explosion welding device is assembled, placed on a foundation 6, explosion welding is performed to obtain a composite plate, machining allowance of the cut edge is exposed to a flow passage structure as shown in fig. 5, then the remaining composite plate is heated to 300 ℃, tin powder is poured out after being changed into a molten state, a hollow flow passage is formed, and the hollow flow passage is washed clean with water.
After the explosion is completed, the steel plates are successfully compounded, and as shown in fig. 6, the shape of the runner is ensured to be complete.
While illustrative embodiments of the invention have been described above, the invention is not limited in scope to the embodiments, and all inventions making use of the inventive concept are contemplated.
Claims (6)
1. A preparation method of explosion welding of a hollow runner is characterized by comprising the following steps:
Before explosion welding, selecting a high intelligent filling material; the selected high intelligent filling material is formed by mixing tin powder and metal powder with the density and strength close to those of the substrate material; the high intelligent filling materials have different material proportions, are distributed in a gradient way along with the height positions, and have lower tin powder proportion as the tin powder proportion is closer to the surface of the substrate;
Carrying out runner pretreatment: machining a runner on the surface of the substrate by using a machining method and filling a high-intelligent filling material; the internal structure of the runner is required to be communicated, and the thickness of the high intelligent filling material after the processing is finished is consistent with the height of the runner;
and (5) completing explosion welding.
2. The explosion welding preparation method of a hollow runner according to claim 1, wherein the runner pretreatment is located inside the substrate, and peripheral edge portions are cut off as machining allowance after the explosion welding is completed.
3. The explosion welding preparation method of the hollow runner according to claim 1, wherein the composite plate and the base plate of the explosion welding are of dissimilar metals.
4. A method of manufacturing a hollow runner explosion welding according to claim 3, wherein the clad plate is aluminum and the base plate is steel.
5. The explosion welding preparation method of the hollow runner according to claim 1, wherein the composite plate and the base plate of the explosion welding are made of the same metal.
6. The method of manufacturing a hollow runner explosion welding according to claim 5, wherein the base plate and the composite plate are both made of steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210753390.4A CN115070189B (en) | 2022-06-29 | 2022-06-29 | Explosion welding preparation method of hollow runner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210753390.4A CN115070189B (en) | 2022-06-29 | 2022-06-29 | Explosion welding preparation method of hollow runner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115070189A CN115070189A (en) | 2022-09-20 |
| CN115070189B true CN115070189B (en) | 2024-05-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210753390.4A Active CN115070189B (en) | 2022-06-29 | 2022-06-29 | Explosion welding preparation method of hollow runner |
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| Country | Link |
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| CN (1) | CN115070189B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116967589A (en) * | 2023-05-18 | 2023-10-31 | 湖南方恒新材料技术股份有限公司 | Explosive welding method for component with complex cavity |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104227221A (en) * | 2014-08-21 | 2014-12-24 | 中国科学技术大学 | Preparation of explosive and explosion lamination method of texture interface |
| CN105478991A (en) * | 2015-12-30 | 2016-04-13 | 中国科学院合肥物质科学研究院 | Preparation method for heat-resistant component containing embedded runner, of fusion reactor blanket |
| CN106956073A (en) * | 2017-04-20 | 2017-07-18 | 中国科学技术大学 | The method and destructor of a kind of groove profile hot melt interface Explosion composite of sheet metal |
| CN108161210A (en) * | 2018-02-09 | 2018-06-15 | 中国科学技术大学 | A kind of self-hardening filled type hollow structure explosive clad plate and preparation method thereof |
| CN210080942U (en) * | 2019-05-24 | 2020-02-18 | 中国人民解放军陆军炮兵防空兵学院 | Long hole heat exchange channel at interface of explosive composite plate |
| CN111889870A (en) * | 2020-08-10 | 2020-11-06 | 中国科学技术大学 | Device and method for producing flow passage part in fusion reactor cladding by explosive cladding |
-
2022
- 2022-06-29 CN CN202210753390.4A patent/CN115070189B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104227221A (en) * | 2014-08-21 | 2014-12-24 | 中国科学技术大学 | Preparation of explosive and explosion lamination method of texture interface |
| CN105478991A (en) * | 2015-12-30 | 2016-04-13 | 中国科学院合肥物质科学研究院 | Preparation method for heat-resistant component containing embedded runner, of fusion reactor blanket |
| CN106956073A (en) * | 2017-04-20 | 2017-07-18 | 中国科学技术大学 | The method and destructor of a kind of groove profile hot melt interface Explosion composite of sheet metal |
| CN108161210A (en) * | 2018-02-09 | 2018-06-15 | 中国科学技术大学 | A kind of self-hardening filled type hollow structure explosive clad plate and preparation method thereof |
| CN210080942U (en) * | 2019-05-24 | 2020-02-18 | 中国人民解放军陆军炮兵防空兵学院 | Long hole heat exchange channel at interface of explosive composite plate |
| CN111889870A (en) * | 2020-08-10 | 2020-11-06 | 中国科学技术大学 | Device and method for producing flow passage part in fusion reactor cladding by explosive cladding |
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| Publication number | Publication date |
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| CN115070189A (en) | 2022-09-20 |
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