CN115070189A - Explosive welding preparation method of hollow runner - Google Patents
Explosive welding preparation method of hollow runner Download PDFInfo
- Publication number
- CN115070189A CN115070189A CN202210753390.4A CN202210753390A CN115070189A CN 115070189 A CN115070189 A CN 115070189A CN 202210753390 A CN202210753390 A CN 202210753390A CN 115070189 A CN115070189 A CN 115070189A
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- flow channel
- explosive welding
- filling material
- substrate
- hollow
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- 238000003466 welding Methods 0.000 title claims abstract description 44
- 239000002360 explosive Substances 0.000 title claims abstract description 33
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 35
- 238000000034 method Methods 0.000 claims abstract description 20
- 239000000758 substrate Substances 0.000 claims abstract description 17
- 239000002131 composite material Substances 0.000 claims abstract description 14
- 238000003754 machining Methods 0.000 claims abstract description 14
- 229910052751 metal Inorganic materials 0.000 claims abstract description 14
- 239000002184 metal Substances 0.000 claims abstract description 14
- 238000004519 manufacturing process Methods 0.000 claims abstract description 9
- 150000002739 metals Chemical class 0.000 claims abstract description 4
- 238000004880 explosion Methods 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 239000000843 powder Substances 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 5
- 238000001816 cooling Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000005474 detonation Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 239000002905 metal composite material Substances 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 238000007781 pre-processing Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 238000005516 engineering process 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
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Images
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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
The invention discloses an explosive welding preparation method of a hollow runner. The method adopts a high-intelligent filling material during explosive welding, and carries out flow channel pretreatment on a substrate. The high-intelligence filling material has high strength and metallurgical characteristics, avoids cracks at corners of the flow channel caused by flow channel deformation, composite plate depression or stress waves after welding, and can be softened and taken out under certain conditions to form the flow channel; the flow channel pretreatment is a process of preparing a flow channel with a complex shape and a filling material by pretreating the flow channel on a substrate through a machining means before explosive welding. In addition, the explosive welding preparation method of the hollow runner can realize the manufacture of the runner between large-size and dissimilar metals.
Description
Technical Field
The invention belongs to the field of metal composite plate manufacturing, and particularly relates to an explosive welding preparation method of a hollow runner.
Background
Explosive welding is a technique in which a clad plate collides with a substrate under the drive of energy generated by the detonation action of explosives, and a metal material at a collision interface is subjected to plastic deformation and melting, so that strong metallurgical bonding is obtained. In recent years, explosion-welded metal composite plates have wide application in the fields of nuclear industry, chemical industry and the like due to excellent physical and chemical properties, and create great social value. The water-cooling plate is an element for exchanging heat through liquid cooling, the principle is that a flow channel is formed in a metal plate in a processing mode, an electronic element is installed on the surface of the plate, and cooling liquid enters from an inlet and exits from an outlet of the plate and takes away heat emitted by the element.
The common processes for manufacturing water-cooled plates currently include hot isostatic pressing and electron beam welding, however, the crystal grains of the product grow excessively, the product is aged, the key characteristics of materials are lost, and the product of the former is difficult to obtain large-size components, and welding seams are exposed on plasma. Aiming at the problem, a bolt connection method is adopted in a novel water cooling plate and a processing technology of the water cooling plate disclosed in Chinese patent CN 202111662664.0; chinese patent CN202010642254.9 discloses a welding process for water-cooled plates and a fixture for welding water-cooled plates, which realizes the manufacture of water-cooled plates by friction welding. However, the bonding strength of the water-cooling plate can not reach the metallurgical bonding standard, and the service life is limited; the latter process is complicated, the welding quality is poor, and large-area plate welding is difficult to realize.
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 preprocessing the runner, improves the bonding strength of products, prolongs the service life of the materials and 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 the flow channel from being deformed after welding, the composite plate from being sunken or the stress wave from causing the corner of the flow channel to be cracked, and can be softened and taken out under certain conditions. And (3) preprocessing the runner structure on the substrate by a machining method, filling a high-intelligence filling material according to gradient, and then performing explosive welding to realize the preparation of the hollow runner composite plate.
The high-intelligence filling material is formed by mixing metal powder with a melting point lower than that of the base plate and the clad plate material and metal powder with density and strength close to those of the base plate material. The flow channel pretreatment comprises the steps of machining a flow channel on the surface of a substrate by using a machining method and filling a high-intelligence filling material before explosive welding, wherein the internal structure of the flow channel is required to be communicated, and the thickness of the high-intelligence filling material is consistent with the height of the flow channel after machining.
Wherein, the proportion of different materials in the high intelligent filling material is distributed in a gradient way along with the position, and the closer to the surface, the lower the proportion of the low-melting-point metal powder is.
The flow channel pretreatment is positioned in the substrate, and the peripheral edge part is cut off as a machining allowance after the explosive welding is finished.
The invention has the advantages that: 1) the flow channel deformation 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 plate is improved, and the service life of the material is prolonged.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.
FIG. 1 is a schematic illustration of the explosive welding of the present invention.
In fig. 1, 1 is a detonator, 2 is an explosive, 3 is a compound plate, 4 is a gap support, 5 is a base plate, 6 is a foundation and 7 is a flow channel.
Fig. 2 is a schematic view of the flow channel structure in embodiment 1.
Fig. 3 shows the result of the explosive welding process of the flow channel in example 1.
FIG. 4 is a photograph of the microstructure of the bonding interface in example 1.
Fig. 5 is a schematic view of a flow channel structure in embodiment 2.
Fig. 6 is a graph of the detection result of the flow channel preparation result of example 2.
Detailed Description
The invention is further described with reference to the following figures and specific examples.
The purpose of the invention is: the explosion welding preparation method of the hollow runner overcomes the problems that the interface pressure is overlarge and the runner deformation is not easy to control, and prepares the hollow runner composite board with a complex structure and large size and uniform welding.
Example 1
The device of the metal foil explosion welding method is shown in a schematic diagram in figure 1. For aluminum and steel, the substrate is steel with dimensions of 400mm × 400mm × 10mm, and the clad plate is aluminum with dimensions of 500mm × 500mm × 3 mm.
The explosive 2 is emulsion explosive with the density of 0.75g/cm 3 The detonation velocity is about 2500m/s and the thickness is 10 mm. The gap support 4 has a height of 5 mm. The high-intelligence filling material is prepared by mixing tin powder and iron powder, and a flow channel is pretreated on the surface of the substrate by using a machining method, wherein the cross section of the flow channel is 6mm multiplied by 8mm, and the structure and the size of the flow channel are shown in figure 2. Filling a high-intelligent filling material in the flow channel, wherein the height of the flow channel is divided into 5 equal parts, the proportion of tin powder in the filling material accounts for 90%, 70%, 50%, 30% and 10% from the bottom to the top respectively, the filling material is compacted in the prefabricated flow channel through a jack and a pressing strip which is consistent with the shape and the size of the flow channel, and the surface of the substrate is polished to be flat by a mechanical processing method and then cleaned.
Referring to fig. 1, an explosive welding device is assembled and placed on a foundation 6, explosive welding is performed to obtain a composite board, as shown in fig. 2, the edge machining allowance is cut off to expose a runner structure, then the remaining composite board is heated to 300 ℃, tin powder is poured out after being changed into a molten state, a hollow runner appears, and the composite board is washed clean by water.
After the explosion is finished, the aluminum plate and the steel plate are successfully compounded, as shown in fig. 3, the appearance of the flow channel is ensured to be complete, and no crack appears at the corner. As shown in fig. 4, the bonding interface exhibited a typical explosive welding bonding surface structure as measured by SEM.
Example 2
The device of the metal foil explosion welding method is shown in a schematic diagram in figure 1. The base plate and the composite plate are made of steel materials and have the dimensions of 350mm multiplied by 10mm and 450mm multiplied by 3mm respectively.
The explosive 2 is emulsion explosive with the density of 0.75g/cm 3 The detonation velocity is about 2500m/s and the thickness is 10 mm. The gap support 4 has a height of 5 mm. The high-intelligence filling material is prepared by mixing tin powder and iron powder, and a flow channel is pretreated on the surface of the substrate by using a machining method, wherein the cross section of the flow channel is 5mm multiplied by 9mm, and the structure and the size of the flow channel are shown in figure 5. Then polishing, cleaning and leveling, and filling a high-intelligent filling material into the flow channel, wherein the height of the flow channel is adjustedAnd 9, dividing the filling material into 90%, 80%, 70%, 60%, 50%, 40%, 30%, 20% and 10% from the bottom to the top, compacting the filling material in the prefabricated flow channel through a jack and a pressing strip with the shape and the size consistent with those of the flow channel, and cleaning the surface of the substrate after polishing and flattening the surface of the substrate by a mechanical processing method.
Referring to fig. 1, an explosive welding device is assembled and placed on a foundation 6, explosive welding is performed to obtain a composite board, edge machining allowance is cut off as shown in fig. 5, a runner structure is exposed, then the remaining composite board is heated to 300 ℃, tin powder is poured out after being changed into a molten state, a hollow runner appears, and the composite board is washed clean by water.
After the explosion is completed, the steel plates are successfully compounded, and as shown in fig. 6, the appearance of the flow channel is ensured to be complete.
While the invention has been described above with reference to specific illustrative embodiments thereof, it is not intended to be limited to the details shown, since various modifications and changes can be made without departing from the spirit and scope of the invention.
Claims (8)
1. An explosive welding preparation method of a hollow runner is characterized by comprising the following steps:
selecting a high-intelligence filling material before explosive welding; the selected high-intelligent filling material is formed by mixing metal powder with a melting point lower than that of the substrate and the clad plate material and metal powder with the density and the strength close to those of the substrate material;
carrying out flow channel pretreatment: machining a flow channel on the surface of the substrate by using a machining method and filling a high-intelligence filling material; and (5) completing explosive welding.
2. The explosive welding preparation method for the hollow flow channel according to claim 1, wherein the flow channel is machined on the surface of the substrate by a machining method and filled with a high intelligent filling material, the internal structure of the flow channel is required to be communicated, and the thickness of the high intelligent filling material is consistent with the height of the flow channel after the machining.
3. The explosive welding preparation method for the hollow flow channel as claimed in claim 1, wherein the proportion of the materials in the highly intelligent filling material is different and is distributed in a gradient manner along the position, and the proportion of the low-melting-point metal powder is lower as the material is closer to the surface.
4. The explosion-welding production method of a hollow flow passage as claimed in claim 1, wherein the flow passage is pretreated inside the substrate, and the peripheral edge portion is cut off as a working allowance after the explosion welding is completed.
5. The explosive welding method for manufacturing a hollow flow passage according to claim 1, wherein the composite plate and the base plate are made of different metals.
6. The explosive welding method for producing a hollow flow passage according to claim 5, wherein the clad plate is made of aluminum and the base plate is made of steel.
7. The explosive welding method for manufacturing a hollow flow passage according to claim 1, wherein the composite plate and the base plate are made of the same metal.
8. The explosive welding method for manufacturing a hollow flow channel according to claim 7, wherein the base plate and the clad plate are 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 |
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| Publication Number | Publication Date |
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| CN115070189A true CN115070189A (en) | 2022-09-20 |
| CN115070189B CN115070189B (en) | 2024-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210753390.4A Active CN115070189B (en) | 2022-06-29 | 2022-06-29 | Explosion welding preparation method of hollow runner |
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Cited By (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 |
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| 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 |
| RU2574177C1 (en) * | 2014-11-24 | 2016-02-10 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Волгоградский государственный технический университет" (ВолгГТУ) | Production of composite articles with internal cavities by blast welding |
| 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 (7)
| 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 |
| RU2574177C1 (en) * | 2014-11-24 | 2016-02-10 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Волгоградский государственный технический университет" (ВолгГТУ) | Production of composite articles with internal cavities by blast welding |
| 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 |
Cited By (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 |
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| CN115070189B (en) | 2024-05-03 |
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