CN112536426B - Anti-deformation process for cooling tube of aviation aircraft radiator - Google Patents
Anti-deformation process for cooling tube of aviation aircraft radiator Download PDFInfo
- Publication number
- CN112536426B CN112536426B CN202011286750.1A CN202011286750A CN112536426B CN 112536426 B CN112536426 B CN 112536426B CN 202011286750 A CN202011286750 A CN 202011286750A CN 112536426 B CN112536426 B CN 112536426B
- Authority
- CN
- China
- Prior art keywords
- copper pipe
- grease
- die
- casting
- aluminum alloy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/16—Casting in, on, or around objects which form part of the product for making compound objects cast of two or more different metals, e.g. for making rolls for rolling mills
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
- F28F21/081—Heat exchange elements made from metals or metal alloys
- F28F21/085—Heat exchange elements made from metals or metal alloys from copper or copper alloys
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/40—Weight reduction
Abstract
The application relates to an anti-deformation process of a radiator cooling pipe of an aviation aircraft, which belongs to the technical field of radiator processing and comprises the following steps of: filling semisolid grease into the copper pipe, and sealing the copper pipe inlet and the copper pipe outlet; fixing the copper pipe filled with grease in a die, flowing aluminum alloy liquid into a die cavity of the die to wrap the copper pipe, and performing compression casting in a die casting machine; and thirdly, completely wrapping the copper pipe by the cooled aluminum alloy to finally form the radiator casting. When the aluminum alloy liquid enters the die cavity at high speed and high pressure to wrap the copper pipe, grease in the copper pipe is liquefied and vaporized, so that the copper pipe is in a high-pressure state and expands outwards, and the copper pipe is not deformed under the stamping of the high-speed and high-pressure aluminum alloy liquid.
Description
Technical Field
The invention relates to the technical field of radiator processing, in particular to an anti-deformation process for a radiator cooling pipe of an aircraft.
Background
In the prior art, steel pipes are mostly used as cooling pipes for die casting, and the heat transfer effect is poor although the deformation resistance of the steel pipes is large, and meanwhile, the steel pipes are die-cast, so the die casting pressure and the die casting speed are reduced, and the surface quality of parts is poor.
Disclosure of Invention
The invention aims to provide an anti-deformation die casting process of a radiator cooling pipe, which aims to solve the problem that a copper cooling pipe in the prior art is easy to deform in the die casting process.
One of the purposes of the invention is to provide a die casting method of a copper pipe, wherein semi-solid oil is filled in the copper pipe, an inlet and an outlet of the copper pipe are sealed, and then the copper pipe filled with the oil is fixed in a die to be die-cast with aluminum alloy.
The second object of the invention is to provide an anti-deformation process for a radiator cooling pipe of an aviation aircraft, which comprises the following steps:
filling semisolid oil into the copper pipe, and sealing an inlet and an outlet of the copper pipe;
fixing the copper pipe filled with oil in a die, flowing aluminum alloy liquid into a die cavity of the die to wrap the copper pipe, and performing compression casting in a die casting machine;
and thirdly, completely wrapping the copper pipe by the cooled aluminum alloy to finally form the radiator casting.
The viscosity of the grease is divided according to the consistency numbers, wherein the consistency numbers are 0#, 1#, 2# or 3#, and the grease in the state is in a viscous semi-solid state.
The following is a description of the consistency number, penetration range (0.1 mm) and state of a general grease.
Further, the melting point of the grease is 200-500 ℃. The melting point of the grease is ensured to be lower than the die casting temperature, and the grease can be liquefied and vaporized when the aluminum alloy liquid is poured into a die.
Further, the grease is grease.
And further, taking out the radiator casting in the third step, taking down screws at the inlet and the outlet of the copper pipe, and blowing out liquid oil and steam in the copper pipe by using compressed air.
Further, the die casting pressure is 20-30 Mpa.
The working principle and the beneficial effects of the invention are as follows: 1. according to the invention, semi-solid oil (viscous grease capable of flowing) is filled in the copper pipe, grease is filled from the inlet position of the copper pipe by the oil gun, when the grease flows out from the outlet position of the copper pipe, the outlet of the copper pipe is blocked by the screw, the oil gun is pressurized, the grease in the copper pipe is compacted to fill the whole copper pipe with the oil, and then the inlet of the copper pipe is blocked by the screw after the oil gun is taken down;
2. the copper pipe filled with oil is fixed in a mould for die casting, and when the aluminum alloy liquid enters a mould cavity at high speed and high pressure to wrap the copper pipe, grease in the copper pipe is liquefied and vaporized immediately, so that the copper pipe is in a high-pressure state and expands outwards, and the copper pipe is not deformed under the stamping of the high-speed and high-pressure aluminum alloy liquid.
3. The copper pipe is completely wrapped by the aluminum alloy liquid to finally form a radiator casting, and when the radiator is used, the copper pipe is internally communicated with circulating cooling liquid, and the cooling liquid takes away heat generated by the radiator.
It is a further object of the present invention to provide a heat sink prepared by the above process.
The invention aims at providing an application of the radiator prepared by the process in a radiating device of aerospace equipment.
The die casting process of the invention avoids the deformation of the copper pipe, can exert the heat dissipation performance of the copper pipe to the maximum, and ensures that the heat dissipation effect of the radiator reaches the optimal state, thereby ensuring the stability and durability of the whole aerospace equipment. In addition, through the application of the invention, other similar heat sinks can also use the method to improve the stability and the service life of the heat sink.
The process of the invention uses the same method to die-cast the copper pipe filled with semi-solid grease, the copper pipe not filled with oil and the copper pipe filled with liquid grease, after X-ray analysis, the copper pipe filled with semi-solid grease basically has no deformation, the copper pipe not filled with grease can be flattened, and the deformation of the copper pipe filled with pure liquid grease at a certain section is more than 50 percent.
Drawings
Fig. 1 is a schematic view of the structure of the copper tube of the present invention.
Detailed Description
The following is a further detailed description of the embodiments:
embodiment 1, an anti-deformation process for a radiator cooling tube of an aircraft, comprises the following steps:
preparing high-temperature grease, wherein the melting point of the grease is 200 ℃ and the consistency number is 2#, filling high-temperature oil into the copper pipe according to the inlet position of the copper pipe shown in figure 1 by using a oiling gun, plugging the outlet of the copper pipe by using a screw after the high-temperature grease flows out of the outlet position of the copper pipe, pressurizing the oiling gun, compacting the high-temperature grease in the copper pipe, and plugging the inlet of the copper pipe by using the screw after the oiling gun is taken down;
fixing the copper pipe filled with the high-temperature lubricating grease in a die cavity for die casting, wherein the die casting pressure is 20-30 Mpa, and when the aluminum alloy liquid enters the die cavity to wrap the copper pipe under the conditions of high speed and high pressure, the high-temperature lubricating grease in the copper pipe is liquefied and gasified immediately, so that the copper pipe is expanded outwards in a high-pressure state, and the copper pipe is not deformed under the high-speed and high-pressure aluminum alloy stamping;
and thirdly, completely wrapping the copper pipe by using aluminum alloy to finally form a radiator casting, taking out the radiator casting, taking down screws at the inlet and the outlet of the copper pipe, and blowing out grease and steam in the copper pipe by using compressed air to obtain the radiator casting.
When the radiator is used, the copper pipe is internally communicated with circulating cooling liquid, the cooling liquid takes away heat generated by the radiator, and the copper pipe is in seamless connection with the aluminum alloy, so that the radiator achieves the optimal radiating effect.
Comparative example 1 is a copper tube filled without any liquid, and the other processes are exactly the same.
Comparative example 2 was a pure liquid grease filled copper tube, and the other processes were identical.
When example 1, comparative example 1 and comparative example 2 were compared under an X-ray machine, the copper tube filled with the semisolid oil was not deformed substantially, but the copper tube not filled with the grease was flattened, and the deformation amount of the copper tube filled with the liquid grease was more than 50% at a certain section.
Claims (4)
1. A die casting method of an aluminum alloy casting is characterized in that: and filling flowable viscous semi-solid grease into the copper tube, sealing an inlet of the copper tube and an outlet of the copper tube, and fixing the copper tube filled with the grease in a die to be in hydraulic casting with aluminum alloy, wherein the grease is grease with a melting point of 200-800 ℃.
2. An anti-deformation process for a radiator cooling pipe of an aircraft is characterized by comprising the following steps of:
firstly, filling flowable viscous semi-solid grease in a copper pipe, and sealing an inlet and an outlet of the copper pipe;
fixing the copper pipe filled with oil in a die, flowing aluminum alloy liquid into a die cavity of the die to wrap the copper pipe, and performing compression casting in a die casting machine;
step three, completely wrapping the copper pipe by the cooled aluminum alloy to finally form a radiator casting;
the grease is grease with a melting point of 200-800 ℃.
3. An aircraft radiator cooling duct deformation resistant process according to claim 2, wherein: and D, taking out the radiator casting in the third step, taking down screws at the inlet and the outlet of the copper pipe, and blowing out grease and steam in the copper pipe by using compressed air.
4. An aircraft radiator cooling duct deformation resistant process according to claim 3, wherein: the die casting pressure is 20-30 mpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011286750.1A CN112536426B (en) | 2020-11-17 | 2020-11-17 | Anti-deformation process for cooling tube of aviation aircraft radiator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011286750.1A CN112536426B (en) | 2020-11-17 | 2020-11-17 | Anti-deformation process for cooling tube of aviation aircraft radiator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112536426A CN112536426A (en) | 2021-03-23 |
| CN112536426B true CN112536426B (en) | 2023-06-30 |
Family
ID=75014184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011286750.1A Active CN112536426B (en) | 2020-11-17 | 2020-11-17 | Anti-deformation process for cooling tube of aviation aircraft radiator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112536426B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114226676A (en) * | 2021-12-15 | 2022-03-25 | 东风(十堰)有色铸件有限公司 | Machining method of aluminum alloy die casting |
| CN114433812A (en) * | 2021-12-30 | 2022-05-06 | 遵义航天新力精密铸锻有限公司 | Anti-deformation processing technology for radiator |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55139160A (en) * | 1979-04-16 | 1980-10-30 | Nikkei Giken:Kk | Internal chilling type casting method |
| DE102012102959B4 (en) * | 2012-04-04 | 2015-07-30 | Sma Solar Technology Ag | Cast heat pipe |
| CN103273035B (en) * | 2013-05-30 | 2015-12-09 | 广东鸿图南通压铸有限公司 | The anti-deformation process of thin-walled oil pipe inserts steel pipe |
| DE102017201583A1 (en) * | 2017-02-01 | 2018-08-02 | Robert Bosch Gmbh | Method for producing a cooling device |
| KR20200067485A (en) * | 2018-12-04 | 2020-06-12 | 현대자동차주식회사 | Casting method for a product formed an inside flow passage and the product |
| KR20200095200A (en) * | 2019-01-31 | 2020-08-10 | 현대자동차주식회사 | Casting method for a product formed an inside flow passage and the product |
-
2020
- 2020-11-17 CN CN202011286750.1A patent/CN112536426B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN112536426A (en) | 2021-03-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112536426B (en) | Anti-deformation process for cooling tube of aviation aircraft radiator | |
| CN104060203B (en) | A kind of production technique of alloy extrusion bar | |
| CN204220956U (en) | A kind of die casting with Local cooling | |
| CN111790911B (en) | Method for manufacturing thin-wall cooling air guide pipe of turbine blade of gas turbine engine | |
| CN103252400B (en) | A kind of method that tube sheet and pipe expanded joint seal | |
| Li et al. | Forming method of micro heat pipe with compound structure of sintered wick on grooved substrate | |
| CN107199303A (en) | The integrated contour forging technique of semisolid filling-plastic deformation | |
| CN104726735A (en) | Composite-structure highly-oriented heat conducting material and preparation method thereof | |
| MX2011004178A (en) | Coolant system for an apparatus for the production of containers. | |
| CN201592201U (en) | Cooling system for lubricating oil for wire drawing of transmission wire | |
| CN105385493A (en) | Adhesiveness-good water-based nano tungsten disulfide isothermal die forging lubricant and preparation method thereof | |
| CN113857462A (en) | Method for preparing radiator with complex variable cross-section pore channels | |
| CN108238724A (en) | A kind of hot extrusion pressure lubricating pads production method with compound glass | |
| CN215259136U (en) | Variable frequency motor lubricating device | |
| CN206305420U (en) | A kind of local extrusion device of die casting | |
| CN105273822A (en) | Wire drawing lubricant of copper wires | |
| CN103567403A (en) | Graphite sleeve for horizontal continuous casting crystallizer and preparation method thereof | |
| CN210068333U (en) | Internal combustion engine piston oscillation cooling structure | |
| CN105400581A (en) | High-temperature-forging-resistant nanometer tungsten disulfide isothermal die forging lubricant and preparation method thereof | |
| CN114433812A (en) | Anti-deformation processing technology for radiator | |
| CN202866910U (en) | Machine-group lubricating oil cooling device | |
| CN205714457U (en) | The internal combustion engine of titanium aluminum compound structure | |
| CN206474655U (en) | A kind of novel aluminum alloy die casting machine | |
| CN107790619A (en) | Aluminium alloy compression casting oil base parting compound and preparation method thereof | |
| CN215033551U (en) | Automobile wheel hub casting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |