CN114433992A - Method for preparing explosion composite pipe rod in vacuum environment - Google Patents
Method for preparing explosion composite pipe rod in vacuum environment Download PDFInfo
- Publication number
- CN114433992A CN114433992A CN202210192524.XA CN202210192524A CN114433992A CN 114433992 A CN114433992 A CN 114433992A CN 202210192524 A CN202210192524 A CN 202210192524A CN 114433992 A CN114433992 A CN 114433992A
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- pipe
- metal
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- 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
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- 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
-
- 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/06—Tubes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
The invention provides a method for preparing an explosion composite pipe rod in a vacuum environment, which comprises the following steps: coaxially arranging a metal bar 1, a metal pipe 2, a pvc pipe 5-1, a pvc pipe 5-2, a metal pipe 3 and a metal pipe 4 from inside to outside; filling explosive for explosive cladding and a detonator between the pvc pipe 5-1 and the pvc pipe 5-2 to form an explosive device; filling water between the pipe to be composited and the explosion device to construct a water environment; putting the material to be compounded, the explosion device and the water environment into a vacuum tank integrally, and vacuumizing to construct a vacuum environment; and detonating the explosion device to firmly weld the metal materials to obtain two groups of high-quality explosion composite pipes and composite rods. The preparation method of the explosion composite pipe rod provided by the invention not only eliminates the phenomenon of large-area melting of a material joint surface caused by adiabatic compression of an air layer in the welding process, but also provides a new idea for welding work in special operation scenes such as a space environment, a water bottom environment and the like, and effectively solves the problem that the traditional method cannot process thin-wall materials with high quality.
Description
Technical Field
The invention belongs to the field of explosive welding, and relates to a method for preparing an explosive cladding pipe rod in a vacuum environment.
Background
Explosive welding is a solid-state welding process for metallurgical bonding of a plurality of same or different metals by utilizing high pressure generated by explosive explosion, and an explosive welding method is commonly utilized in the metal manufacturing and processing industry to produce multi-metal composite materials with various extensive applications. The explosion welding has incomparable advantages compared with the traditional metal composite method in the aspects of reducing the production cost, improving the product quality and the like. The bimetal composite pipe and bar produced by using the explosive welding technology are common high-quality composite materials, so that the original properties of metal materials can be ensured to be unchanged, different advantages of strong corrosion resistance, high strength, good plasticity and the like can be integrated, and the bimetal composite pipe and bar is widely applied to the fields of precision machinery, petrochemical industry, aerospace and the like.
The application of explosive welding to prepare composite materials is mainly focused on preparing a single-group composite material at one time under normal pressure, so that the utilization rate of explosive energy is low, metal pipes with extremely thin thicknesses are difficult to process, and the air gap between interlayers of the base composite materials can influence the combination quality of the composite materials to be prepared to a certain extent. When the pressure environment changes, such as underwater environment, space environment and the like, the traditional explosive welding method loses the universality.
Disclosure of Invention
The invention provides a method for preparing an explosion composite pipe rod in a vacuum environment, which aims to improve the utilization rate of explosive in the welding process, prevent the surface of a composite material from being ablated and damaged due to the direct contact of the explosive and a pipe to be composited, and provide a new idea for metal composite operation in a special environment.
The technical scheme adopted by the invention is a method for preparing an explosion composite pipe rod in a vacuum environment, which comprises the following steps:
1) coaxially arranging a metal bar 1, a metal pipe 2, a pvc pipe 5-1, a pvc pipe 5-2, a metal pipe 3 and a metal pipe 4 from inside to outside;
2) filling explosive for explosive cladding and a detonator between the pvc pipe 5-1 and the pvc pipe 5-2 to form an explosive device;
3) filling water between the pipe to be composited and the explosion device to construct a water environment;
4) putting the material to be compounded, the explosion device and the water environment into a vacuum tank integrally, and vacuumizing to construct a vacuum environment;
5) and detonating the explosion device to firmly weld the metal materials to obtain two groups of high-quality explosion composite pipes and composite rods.
The traditional explosion welding basically does not process the air layer in the gap of the composite material, which not only can lead the bonding interface of the materials to be compounded to be melted in a large area in the welding process, but also leads the materials to be compounded to be completely incapable of being compounded. In addition, the explosive is directly attached and contacted with the material to be compounded mostly in the traditional preparation of the explosive cladding tube, so that the possibility that the surface of the explosive cladding rod is burnt and damaged is greatly increased, and the product quality is seriously influenced. The existing composite treatment of various metal materials is not limited to daily industrial production, and often appears in special scenes such as space environment, underwater environment and the like, but the traditional explosive welding method obviously does not have the capability of treating the metal composite problem in the special environment.
The invention provides a method for preparing an explosion composite pipe rod in a vacuum environment, and aims to solve the production difficulties. The incompressible water environment is additionally arranged between the pipe to be compounded and the explosion device, so that the ablation damage of the surface of the material caused by the direct contact of the explosive and the pipe wall is avoided; and the vacuum tank is used for integrally filling the material to be compounded and the explosion device and then vacuumizing, so that the negative influence of air in the material interlayer on the explosion welding process is effectively avoided, and an effective way is provided for treating the metal compounding problem in a special environment. The explosive has high energy utilization rate and stronger operability.
Drawings
FIG. 1 is a two-dimensional block diagram of the present invention, including the arrangement of metal bars, metal tubing, explosive devices, water environment and vacuum environment;
fig. 2 is a three-dimensional structural view of the present invention.
Detailed Description
The following detailed description of the embodiments of the invention refers to the accompanying drawings.
The preparation method of the explosion composite pipe rod in the vacuum environment is given by combining the attached drawings and comprises the following steps:
1) coaxially arranging a metal bar 1, a metal pipe 2, a pvc pipe 5-1, a pvc pipe 5-2, a metal pipe 3 and a metal pipe 4 from inside to outside;
2) filling explosive for explosive cladding and a detonator between the pvc pipe 5-1 and the pvc pipe 5-2 to form an explosive device 5;
3) filling water between the pipe to be composited and the explosion device to construct a water environment 6;
4) putting the material to be compounded, the explosion device and the water environment into a vacuum tank 7 integrally, and vacuumizing to construct a vacuum environment;
5) and detonating the explosion device to firmly weld the metal materials to obtain two groups of high-quality explosion composite pipes and composite rods.
Compared with the prior art, the invention has the following advantages:
1) the invention introduces a vacuum explosion welding environment, which not only eliminates the large-area melting phenomenon of the material joint surface caused by the adiabatic compression of the air layer in the welding process, improves the overall quality of the product, but also provides a new idea for the welding work in special operation scenes such as space environment, underwater environment and the like.
2) The invention reduces the risk of surface ablation damage of the material to be compounded due to the influence of explosive explosion in the production process by utilizing the incompressible water environment, so that the explosive welding method can carry out high-quality processing treatment on the thin-wall pipe, and the operability is stronger.
3) The invention has simple preparation, lower cost and higher energy utilization rate of the explosive, and can simultaneously produce two explosion composite pipe rods by one-time welding.
Claims (5)
1. A preparation method of an explosion composite pipe rod in a vacuum environment is characterized by comprising the following steps:
1) coaxially arranging a metal bar 1, a metal pipe 2, a pvc pipe 5-1, a pvc pipe 5-2, a metal pipe 3 and a metal pipe 4 from inside to outside;
2) filling explosive for explosive cladding and a detonator between the pvc pipe 5-1 and the pvc pipe 5-2 to form an explosive device 5;
3) filling water between the pipe to be compounded and the explosion device to construct a water environment 6;
4) putting the material to be compounded, the explosion device and the water environment into a vacuum tank 7 integrally, and vacuumizing to construct a vacuum environment;
5) and detonating the explosion device to firmly weld the metal materials to obtain two groups of high-quality explosion composite pipes and composite rods.
2. The method of manufacturing according to claim 1, wherein the explosive device 5 is composed of a pvc pipe, an explosive for explosive cladding, a detonator; the wall thickness of the explosion device is 7.3-22.5 mm.
3. The method for preparing the explosive device according to claim 1, wherein an aqueous environment exists between the explosive device 5 and the metal pipes 2 and 3.
4. The method according to claim 1, wherein the metal bar 1 has a cross-sectional diameter of 2.5 to 10.5 cm; the wall thickness of the metal pipe 2 is 0.3-7.2 mm; the wall thickness of the metal pipe 3 is 0.5-8.7 mm; the wall thickness of the metal pipe 4 is 10-24 mm.
5. The preparation method according to claim 1, wherein the metal material 1-4, the explosion device 5 and the water environment 6 are integrally placed in a vacuum tank 7 and vacuumized to form a vacuum environment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210192524.XA CN114433992A (en) | 2022-03-01 | 2022-03-01 | Method for preparing explosion composite pipe rod in vacuum environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210192524.XA CN114433992A (en) | 2022-03-01 | 2022-03-01 | Method for preparing explosion composite pipe rod in vacuum environment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114433992A true CN114433992A (en) | 2022-05-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210192524.XA Pending CN114433992A (en) | 2022-03-01 | 2022-03-01 | Method for preparing explosion composite pipe rod in vacuum environment |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108907441A (en) * | 2018-10-18 | 2018-11-30 | 郑州宇光复合材料有限公司 | A kind of metallic composite vacuum explosion welding apparatus |
| CN113211799A (en) * | 2021-05-27 | 2021-08-06 | 安徽理工大学 | Preparation method of efficient explosion composite pipe rod based on water pressure |
| CN113618224A (en) * | 2021-09-06 | 2021-11-09 | 安徽理工大学 | Preparation method of efficient explosion composite pipe rod based on water pressure in local vacuum environment |
| CN113649682A (en) * | 2021-08-25 | 2021-11-16 | 安徽理工大学 | Preparation method of efficient explosive composite pipe rod in local vacuum environment |
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2022
- 2022-03-01 CN CN202210192524.XA patent/CN114433992A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108907441A (en) * | 2018-10-18 | 2018-11-30 | 郑州宇光复合材料有限公司 | A kind of metallic composite vacuum explosion welding apparatus |
| CN113211799A (en) * | 2021-05-27 | 2021-08-06 | 安徽理工大学 | Preparation method of efficient explosion composite pipe rod based on water pressure |
| CN113649682A (en) * | 2021-08-25 | 2021-11-16 | 安徽理工大学 | Preparation method of efficient explosive composite pipe rod in local vacuum environment |
| CN113618224A (en) * | 2021-09-06 | 2021-11-09 | 安徽理工大学 | Preparation method of efficient explosion composite pipe rod based on water pressure in local vacuum environment |
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Application publication date: 20220506 |
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