CN104668922B - A kind of change-vacuum-phase change radiator manufacture method - Google Patents
A kind of change-vacuum-phase change radiator manufacture method Download PDFInfo
- Publication number
- CN104668922B CN104668922B CN201510097919.1A CN201510097919A CN104668922B CN 104668922 B CN104668922 B CN 104668922B CN 201510097919 A CN201510097919 A CN 201510097919A CN 104668922 B CN104668922 B CN 104668922B
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- China
- Prior art keywords
- end cover
- bottom end
- radiator
- change
- vacuum
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/26—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass heat exchangers or the like
-
- 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
- B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
- B23K20/122—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P2700/00—Indexing scheme relating to the articles being treated, e.g. manufactured, repaired, assembled, connected or other operations covered in the subgroups
- B23P2700/10—Heat sinks
Abstract
The invention discloses a kind of change-vacuum-phase change radiator manufacture method, the change-vacuum-phase change radiator includes radiator body, upper end cover and bottom end cover, radiator body has hollow tube, phase-change working substance is equiped with the hollow tube, upper end cover and bottom end cover are respectively welded in the two ends of the hollow tube, and upper end cover and/or bottom end cover rush technique machine-shaping using red；The red technique of rushing comprises the following steps：Blank, heating, shaping, preheating, shaping, cooling.This phase transition of vacuum manufacturing method of heat radiator, technological forming upper end cover and bottom end cover are rushed using red, reduce cost, and solve the problem of end cap of traditional approach machine-shaping has micropore or carefully stitched；Upper end cover and bottom end cover are welded on radiator body using stirring weldering or friction welding technological, are connected firmly at solder joint, strengthens vacuum leakproofness, service life is longer.
Description
Technical field
The present invention relates to radiator manufacturing process technology field, more particularly, to a kind of change-vacuum-phase change radiator manufacturer
Method, in particular to the method for manufacturing end cover and end cap and the welding method of radiator body of the change-vacuum-phase change radiator.
Background technology
Change-vacuum-phase change radiator, such as LED heronsbills radiator, as shown in figure 1, it includes a flower-shaped radiator of the sun
Body 1, upper end cover 2 and bottom end cover 3, radiator body 1, which has in hollow tube 4, the hollow tube 4, is equiped with phase-change working substance, upper end
Lid 2 and bottom end cover 3 are respectively welded in behind the two ends of the hollow tube 4, welding fabrication, and the hollow tube 4 forms closed vacuum chamber, its
Middle radiator body 1, upper end cover 2 and bottom end cover 3 are aluminium, and the upper surface of bottom end cover 3 is additionally provided with capillary structure 5, and it is made
With being delivered to working medium by capillary force at the thermal source of bottom end cover 3, and absorb heat and take away the heat of thermal source, while capillary structure
5 also play the role of to increase heat exchange area.
Because bottom end cover 3 is directly contacted with thermal source, thus bottom end cover 3 heat conductivility to radiator integral heat sink performance extremely
Close important, if bottom end cover 3 has more micropore or thin seam and can influence its heat conductivility, so as to radiator integral heat sink
It can have undesirable effect.At present when manufacturing such change-vacuum-phase change radiator, upper end cover 2 and bottom end cover 3 using turn-milling cutting or
Be present micropore or thin seam in die cast, the end cap of this kind of traditional approach machine-shaping, in addition it is also necessary to the end cap is infiltrated (micro-
Hole/thin seam impermeable seal technique) after, effectively sealedly effect, the cumbersome could be played to the vacuum chamber of radiator body 1
It is less efficient, and the impregnant cost consumed is higher.
The capillary structure 5 of bottom end cover 3 has metal twine, micro-group groove, foam metal material etc., and hair is processed on bottom end cover 3
Fine texture 5 is more complicated, and metal twine and foam metal material need just take shape on bottom end cover by sintering process, micro-group
Groove then needs to carry out multiple turnery processing on bottom end cover.Patent announcement CN203534296U discloses a kind of New LED too
Sun flower radiator, the bottom end cover 3 of the radiator is integrally formed for die casting, and the inner surface of bottom end cover 3 is formed by some projections
The microneedle array of composition, it uses extrusion process and integrally formed mode to process capillary structure, and processing technology is simplified,
But this new processing technology is the problem of still have foregoing micropore or carefully stitch, and using extrusion process it is difficult to ensure that bottom end cover
The uniformity of microneedle array on 3.
When the manufacture craft of current change-vacuum-phase change radiator, upper end cover 2 and bottom end cover 3 are welded with radiator body 1, due to
Bottom end cover 3 is contacted with thermal source, and upper end cover 2 also needs to carry out vacuum sealing processing, thus first by bottom end cover 3 and radiator body 1
The lower end welding of hollow tube 4, then the upper end of upper end cover 2 and the hollow tube 4 of radiator body 1 is welded, as illustrated, upper end cover
2 outer rim and the tube wall gap of hollow tube 4 of radiator body 3 coordinate, thus in welding are with dissipating by the upper surface of upper end cover 2
The tube wall face welding of the hollow tube 4 of hot device body 3, this welding manner generally selects argon arc welding so that upper end cover 2 has to sink
Enter in the hollow tube 4 of radiator body 1, the upper end of upper end cover 2 is formed with boss, and moulding unsightly, connects insecure, vacuum is close
Envelope property is poor so that the service life of whole radiator is shorter.
The content of the invention
The deficiency existed for above-mentioned prior art, it is an object of the invention to provide a kind of change-vacuum-phase change radiator manufacturer
Method, first, rushing technological forming upper end cover and bottom end cover using red, reduces cost, and solve the end cap of traditional approach machine-shaping
The problem of there is micropore or carefully stitch；Second, upper end cover and bottom end cover are welded in into radiator using stirring weldering or friction welding technological
On body, it is connected firmly at solder joint, strengthens vacuum leakproofness, service life is longer.
To achieve these goals, the technical solution adopted in the present invention is：
A kind of change-vacuum-phase change radiator manufacture method, the change-vacuum-phase change radiator include radiator body, upper end cover and under
End cap, radiator body has hollow tube, and phase-change working substance is equiped with the hollow tube, and upper end cover and bottom end cover are respectively welded in this
The two ends of hollow tube, upper end cover and/or bottom end cover rush technique machine-shaping using red；The red technique of rushing comprises the following steps：
Aluminium section bar is cut into cylinder by A, blank；
B, heating, 420-480 DEG C is heated to by the pole piece；
C, shaping, extrusion forming；
D, preheating, 350-400 DEG C is preheated to by shaping workpiece；
E, shaping extrudes to be surface-treated shaping workpiece；
F, cooling, naturally cools to normal temperature.
Wherein, the step C is molded for secondary extrusion, including two steps of pre-extrusion shaping and smart extrusion forming.
Wherein, the step C is three extrusion formings, including pre-extrusion is molded, the first smart extrusion forming and the second essence are squeezed
Molded three steps.
The hollow tube of further scheme, upper end cover and/or bottom end cover and radiator body is welded using friction welding technological,
Upper end cover and/or bottom end cover opposite heat sink body high-speed rotation, the outer rim and radiator body of upper end cover and/or bottom end cover
Produce temperature arrising caused by friction between the inwall of hollow tube, and reach hot plastic state, after realized after its cooling upper end cover and/or under
The solid State Welding of end cap and radiator body.
It is preferred that scheme, the hollow tube of upper end cover and/or bottom end cover and radiator body using stirring Welding welding, on
There is gap, stirring soldering tip is stretched between this between the tube wall of the hollow tube of the outer rim and radiator body of end cap and/or bottom end cover
Move in gap and along the gap track, stirring soldering tip high-speed rotation and the outer rim and radiator sheet of upper end cover and/or bottom end cover
The inwall of the hollow tube of body produces temperature arrising caused by friction, and reaches hot plastic state, after realized after its cooling upper end cover and/or under
The solid State Welding of end cap and radiator body.
Further scheme, upper end cover and bottom end cover weld to form vacuum chamber with radiator body, and upper end cover is provided with perforate,
The vacuum chamber is vacuumized by the perforate, then phase-change working substance is injected to the vacuum chamber, it is finally with rivet that the perforate is close
Envelope.
After adopting the above technical scheme, the invention has the advantages that compared with the prior art,：
Change-vacuum-phase change radiator manufacture method of the present invention, technological forming upper end cover and bottom end cover are rushed using red, its
In red technique of rushing be a kind of advanced professional technique grown up on the basis of modern age finish forge and hot extrusion, at present in pipeline five
Applied in golden production industry.Pass through the red compactness for rushing upper end cover made from technique and/or bottom end cover of the present invention
Height, the problem of end cap for solving traditional approach machine-shaping has micropore or carefully stitched, thus thermal conductivity are more preferable, this process advan
In the shaping of bottom end cover microneedle array capillary structure, the uniformity of microneedle array preferably, improves yields；Due to without again using leaching
The processing step oozed, therefore processing cost is greatly reduced.Further, prior art is substituted using stirring weldering or friction welding technological
Argon arc welding technique, upper end cover and bottom end cover are welded on radiator body, is connected firmly and more aesthetically pleasing, also makes at solder joint
The vacuum leakproofness for obtaining the vacuum chamber of radiator is more preferable, and service life is longer.Further, first by upper end cover and bottom end cover with dissipating
Hot device body welding, is vacuumized and is loaded phase-change working substance by the perforate of upper end cover, finally by the perforate with the side of rivet
Formula is sealed, and advantageously reduces the difficulty of processing of welding sequence, improves processing efficiency.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples：
Fig. 1 is the structural representation of the radiator described in background technology.
Fig. 2 is the structural representation of friction welding (FW) of the present invention.
The structural representation that Fig. 3 welds for stirring of the present invention.
Fig. 4 is the structural representation of upper end cover of the present invention.
Fig. 5 is the present invention using the red schematic diagram for rushing upper end cover described in technological forming.
Fig. 6 is the structural representation of another upper end cover of the present invention.
Fig. 7 is the present invention using the red schematic diagram for rushing another upper end cover described in technological forming.
Fig. 8 is the structural representation of bottom end cover of the present invention.
Fig. 9 is the present invention using the red schematic diagram for rushing bottom end cover described in technological forming.
In figure, 1：Radiator body；2：Upper end cover；3：Bottom end cover；4:Hollow tube；5：Capillary structure；.
Embodiment
As described below is only presently preferred embodiments of the present invention, is not intended to limit the scope of the present invention.
Embodiment, as shown in Fig. 2 to Fig. 9：
A kind of change-vacuum-phase change radiator manufacture method, the change-vacuum-phase change radiator includes radiator body 1, the and of upper end cover 2
Bottom end cover 3, radiator body 1, which has in hollow tube 4, the hollow tube 4, is equiped with phase-change working substance, and upper end cover 2 and bottom end cover 3 are distinguished
The two ends of the hollow tube 4 are welded in, upper end cover 2 and bottom end cover 3 rush technique machine-shaping using red；It is described it is red rush technique include with
Lower step：Aluminium section bar is cut into cylinder by A, blank, and the aluminium of cylinder is cut into cylinder, equal according to volume before and after shaping
Calculate Cutting Length；B, heating, is heated to 420-480 DEG C, to reduce aluminium hardness, in the temperature conditionss by the pole piece
Lower extruded aluminum can eliminate internal capillary and slit, and compactness is preferable, preferably 450 DEG C；C, shaping is placed under 600T punch presses and squeezed
It is molded；D, preheating, 350-400 DEG C is preheated to by shaping workpiece；E, shaping is extruded to be surface-treated to shaping workpiece,
Flat pattern workpiece surface, takes out surface spikes etc.；F, cooling, naturally cools to normal temperature, finished product.
Red upper end cover 2 made from technique is rushed using above-mentioned and bottom end cover 3 solves the end cap of traditional approach machine-shaping and deposited
In micropore or the problem of carefully stitch, with more excellent heat conductivility.It is particularly suitable for the integrated molding of 3 capillary structure of bottom end cover 5
The bottom end cover 3 of processing, such as processing microneedle array capillary structure 5, can be effectively improved product quality and improve processing efficiency.
Further, when upper end cover 2 and bottom end cover 3 are welded with radiator body 1, friction welding (FW) can be selected according to actual conditions
Or the welding procedure of stirring weldering.Argon arc welding is existing welding procedure, and the present embodiment is repeated no more.
As shown in Fig. 2 the hollow tube 4 of upper end cover 2 and bottom end cover 3 and radiator body 1 is welded using friction welding technological, on
In the outer rim and radiator body 1 of end cap 2 and the high-speed rotation of 3 opposite heat sink body of bottom end cover 1, upper end cover 2 and bottom end cover 3
Temperature arrising caused by friction is produced between the inwall of blank pipe 4, and reaches hot plastic state, upper end cover 2 and lower end are realized after it is cooled down
The solid State Welding of lid 3 and radiator body 1.
As shown in figure 3, the hollow tube 4 of upper end cover 2 and bottom end cover 3 and radiator body 1 is welded using stirring Welding, on
There is gap, stirring soldering tip is stretched between this between the tube wall of the hollow tube 4 of the outer rim and radiator body 1 of end cap 2 and bottom end cover 3
Move in gap and along the gap track, stirring soldering tip high-speed rotation and the outer rim and radiator body of upper end cover 2 and bottom end cover 3
The inwall of 1 hollow tube 4 produces temperature arrising caused by friction, and reaches hot plastic state, and upper end cover 2 and lower end are realized after it is cooled down
The solid State Welding of lid 3 and radiator body 1.
The argon arc welding technique of prior art is substituted using stirring weldering or friction welding technological, upper end cover 2 and bottom end cover 3 are welded
In being connected firmly and more aesthetically pleasing on radiator body 1, at solder joint, also cause the vacuum leakproofness of vacuum chamber of radiator more
Good, service life is longer.
Further, upper end cover 2 and bottom end cover 3 form vacuum chamber with the welding of radiator body 1, the vacuum chamber use with
What lower method was realized, upper end cover 2 is provided with perforate, is vacuumized the vacuum chamber by the perforate, is then injected to the vacuum chamber
Phase-change working substance, is finally sealed the perforate with rivet.The difficulty of processing of welding sequence is advantageously reduced using this method, improves and adds
Work efficiency rate.
Forming step C can be molded for secondary extrusion, including two steps of pre-extrusion shaping and smart extrusion forming.Such as Fig. 4
With shown in Fig. 5, the upper end cover 2 is applied to weld to stir weldering mode with radiator body 1, and the one side of the upper end cover 2 is flat
Face, another side is provided with projection.Columned aluminium section bar is as shown in the 5-1 in Fig. 5, the 5-2 in pre-extrusion forming step such as Fig. 5
Shown shape, it forms a boss, essence extruding in projection side in planar side one curved surface that caves inward of formation of upper end cover 2
Forming step is formed the projection of upper end cover 2 by the boss hot extrusion in 5-2, by concaving in 5-2 as shown in the 5-3 in Fig. 5
Sunken curved surface hot extrusion forms the planar side of upper end cover 2.The technique being molded using the secondary extrusion, it is ensured that aluminium section bar is in warm
Thermoplastic deformation's uniformity in extrusion process.
According to the different shape of upper end cover 2, forming step C can also be three extrusion formings, including pre-extrusion shaping, the
One smart extrusion forming and second three steps of smart extrusion forming.As shown in Figure 6 and Figure 7, the upper end cover 2 is applied to and radiator
Body 1 is welded in friction welding (FW) mode, and two sides of the upper end cover 2 are equipped with projection.7- in columned aluminium section bar such as Fig. 7
Shown in 1, pre-extrusion forming step shape as shown in the 7-2 in Fig. 7, it forms one in the upper surface of upper end cover 2 and caved inward
Curved surface, in lower surface one boss of formation, the first smart extrusion forming step is as shown in the 7-3 in Fig. 7, and precise forming first is on this
The projection shape of the lower surface of end cap 2, the second smart extrusion forming step is as shown in the 7-4 in Fig. 7, then the precise forming upper end cover 2
The projection shape of upper surface.
As shown in Figure 8 and Figure 9, the upper surface of the bottom end cover 3 is provided with to be made up of the forming step C of bottom end cover 3 microneedle array
Capillary wick chamber, lower surface be a plane, thus can select secondary extrusion shaping.9-1 in columned aluminium section bar such as Fig. 9
Shown, it forms a boss, smart extrusion forming in planar side one curved surface that caves inward of formation of upper end cover 2 in opposite side
Step is formed the capillary wick chamber of upper end cover 2 by the boss hot extrusion in 9-2, by inside in 9-2 as shown in the 9-3 in Fig. 9
The curved surface hot extrusion of depression forms planar side.
Described above is only the better embodiment of the present invention, therefore all constructions according to described in present patent application scope,
The equivalent change or modification that feature and principle are done, is included in the range of present patent application.
Claims (6)
1. a kind of change-vacuum-phase change radiator manufacture method, the change-vacuum-phase change radiator includes radiator body, upper end cover and lower end
Lid, radiator body has hollow tube, phase-change working substance is equiped with the hollow tube, and upper end cover and bottom end cover are respectively welded in this
The two ends of blank pipe, it is characterised in that upper end cover and/or bottom end cover rush technique machine-shaping using red；The red technique of rushing includes
Following steps：
Aluminium section bar is cut into cylinder by A, blank；
B, heating, 420-480 DEG C is heated to by the pole piece；
C, shaping, extrusion forming；
D, preheating, 350-400 DEG C is preheated to by shaping workpiece；
E, shaping extrudes to be surface-treated shaping workpiece；
F, cooling, naturally cools to normal temperature.
2. change-vacuum-phase change radiator manufacture method according to claim 1, it is characterised in that the step C squeezes to be secondary
It is molded, including two steps of pre-extrusion shaping and smart extrusion forming.
3. change-vacuum-phase change radiator manufacture method according to claim 1, it is characterised in that the step C is crowded three times
It is molded, including pre-extrusion shaping, the first smart extrusion forming and second three steps of smart extrusion forming.
4. change-vacuum-phase change radiator manufacture method according to claim 1, it is characterised in that upper end cover and/or bottom end cover
Welded with the hollow tube of radiator body using friction welding technological, upper end cover and/or bottom end cover opposite heat sink body turn at a high speed
It is dynamic, temperature arrising caused by friction is produced between the inwall of the hollow tube of the outer rim and radiator body of upper end cover and/or bottom end cover, and reach it
To hot plastic state, after the solid State Welding that upper end cover and/or bottom end cover and radiator body are realized after its cooling.
5. change-vacuum-phase change radiator manufacture method according to claim 1, it is characterised in that upper end cover and/or bottom end cover
Welded with the hollow tube of radiator body using stirring Welding, the outer rim and radiator body of upper end cover and/or bottom end cover
There is gap, stirring soldering tip is stretched into the gap and moved along the gap track, and stirring soldering tip is high between the tube wall of hollow tube
Speed rotates the outer rim with upper end cover and/or bottom end cover and the inwall of the hollow tube of radiator body produces temperature arrising caused by friction, and makes it
Hot plastic state is reached, after the solid State Welding that upper end cover and/or bottom end cover and radiator body are realized after its cooling.
6. the change-vacuum-phase change radiator manufacture method according to claim 4 or 5, it is characterised in that upper end cover and bottom end cover
Weld to form vacuum chamber with radiator body, upper end cover is provided with perforate, vacuumizes the vacuum chamber by the perforate, then to institute
Vacuum chamber injection phase-change working substance is stated, finally the perforate is sealed with rivet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510097919.1A CN104668922B (en) | 2015-03-05 | 2015-03-05 | A kind of change-vacuum-phase change radiator manufacture method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510097919.1A CN104668922B (en) | 2015-03-05 | 2015-03-05 | A kind of change-vacuum-phase change radiator manufacture method |
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| Publication Number | Publication Date |
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| CN104668922A CN104668922A (en) | 2015-06-03 |
| CN104668922B true CN104668922B (en) | 2017-07-25 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5172476A (en) * | 1991-08-14 | 1992-12-22 | General Motors Corporation | Method of manufacturing heat exchanger tubing |
| CN102114767A (en) * | 2011-01-24 | 2011-07-06 | 芜湖博锐汽车科技有限公司 | Automobile radiator integrated with air conditioning condenser |
| CN103200803A (en) * | 2013-03-20 | 2013-07-10 | 西安交通大学 | Loop heat pipe cooling device with pool boiling function |
| CN103586576A (en) * | 2013-10-12 | 2014-02-19 | 苏州嘉德鲁机电科技有限公司 | Manufacturing method of fully-enclosed phase-change radiator |
| CN203534296U (en) * | 2013-08-14 | 2014-04-09 | 奉化市垭特机电科技有限公司 | Novel LED sunflower radiator |
-
2015
- 2015-03-05 CN CN201510097919.1A patent/CN104668922B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5172476A (en) * | 1991-08-14 | 1992-12-22 | General Motors Corporation | Method of manufacturing heat exchanger tubing |
| CN102114767A (en) * | 2011-01-24 | 2011-07-06 | 芜湖博锐汽车科技有限公司 | Automobile radiator integrated with air conditioning condenser |
| CN103200803A (en) * | 2013-03-20 | 2013-07-10 | 西安交通大学 | Loop heat pipe cooling device with pool boiling function |
| CN203534296U (en) * | 2013-08-14 | 2014-04-09 | 奉化市垭特机电科技有限公司 | Novel LED sunflower radiator |
| CN103586576A (en) * | 2013-10-12 | 2014-02-19 | 苏州嘉德鲁机电科技有限公司 | Manufacturing method of fully-enclosed phase-change radiator |
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| CN104668922A (en) | 2015-06-03 |
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Effective date of registration: 20160415 Address after: 315500 Zhejiang city of Ningbo province Fenghua City Chun Hu Zhen Jie Er Cun Applicant after: NINGBO LIPINGE VACUUM PHASE-TRANSITION LIGHTING CO.,LTD. Address before: 315500 abalone Industrial Zone, Yue Lin Street, Ningbo, Zhejiang, Fenghua Applicant before: FENGHUA YANGHAI PHOTOELECTRIC SCIENCE AND TECHNOLOGY Co.,Ltd. |
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