CN106312487B - A kind of distribution thermal-arrest panel forming method - Google Patents
A kind of distribution thermal-arrest panel forming method Download PDFInfo
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- CN106312487B CN106312487B CN201610843042.0A CN201610843042A CN106312487B CN 106312487 B CN106312487 B CN 106312487B CN 201610843042 A CN201610843042 A CN 201610843042A CN 106312487 B CN106312487 B CN 106312487B
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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
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Abstract
The invention discloses a kind of distributed thermal-arrest panel forming method, the molding stainless steel jig plate of this method design integration first makes fixture integral planar degree meet requirement；Pre-buried fin and wheeled pre-embedded block are processed, and collecting plate is assembled according to the distributed collecting plate shape requirement of processing；Integral braze-welded, strict guarantee welding temperature condition in brazing process is carried out to new distribution type collecting plate by the stainless steel jig plate of integrated molding；Fabrication hole is opened to the collecting plate that soldering is completed and is machined out.This method can solve novel return satellite Fluid for Single-phase Fluid Loop System collecting plate since appearance and size increase, mechanical interface become more and the technologies requirements such as hot interface distribution is irregular raising, to thermal-arrest problem caused by being manufactured of collecting plate.
Description
Technical field
The present invention relates to spacecraft Evolution of Thermal Control Technique fields, and in particular to a kind of distribution thermal-arrest panel forming method.
Background technology
Satellite is a kind of special plate fin type heat exchanger with collecting plate, only one layer of heat exchanger channels, by upper and lower panel, is led
Stream fin, strip of paper used for sealing, buries block composition at heat exchange fin.Electronic equipment is mounted on the upper and lower panel surface of cold plate, and working media is by connecing
Head into inside cold plate, is distributed through distributing fin, even into heat exchange fin, when taking away panel outer surface electronic device works
After the heat sent out, temperature raising is flowed out from the connector of the other end.Working media after temperature raising flows again after being re-cooled
Enter cold plate, form cycle.
Novel return satellite makes to solve the problems, such as that recovery capsule heat consumption returns to 10 times of satellite or more higher than tradition in recovery capsule
With collecting plate collecting device heat.There are larger with traditional single phase fluid circuit collecting plate for novel return satellite recovery capsule collecting plate
Difference is mainly reflected in following several respects：
(1) shape：Novel return satellite recovery capsule collecting plate is diameter 1m or so irregular cycle and plate center Kai great faces
Product structure hole, and traditional one-way fluid circuit collecting plate is no more than novel return satellite recovery capsule thermal-arrest for rectangle and area maximum
The half of plate suqare；
(2) mechanical interface：Novel return satellite recovery capsule collecting plate sets to be assembled with satellite structure and equipment in plate face
A 4~Φ of Φ 9 more than 80 have been counted to differ in size, be unevenly distributed and the mounting hole of high accuracy positioning requirement, and traditional one-way fluid returns
Road collecting plate corresponds to single equipment its mounting hole and is usually no more than 10, and is distributed for rectangle rule；
(3) hot interface：Overall heat consumption about 200W electronic equipments are randomly distributed on novel return satellite recovery capsule collecting plate,
And traditional one-way fluid circuit collecting plate corresponds to single equipment, the former proposes higher to thermal-arrest and the isothermalization design of isothermal plate
It is required that；
(4) weight：Novel return satellite is no more than 10 kilograms since weight limits two pieces of 5mm thickness cold plates total weights, is phase
Same volume, the half of trade mark aluminium less than.
In short, novel return satellite recovery capsule collecting plate is due to the requirement of the technologies such as appearance and size, mechanical interface and hot interface
Raising, cause no small difficulty to being manufactured for collecting plate, can not ensure that novel heat collecting plate can using conventional method
To meet requirement, it is therefore necessary to grope completely new forming method to ensure being manufactured for novel heat collecting plate.
Invention content
In view of this, the present invention provides a kind of distributed thermal-arrest panel forming method, novel return satellite list can be solved
Phase fluid circuit collecting plate is since appearance and size increases, mechanical interface becomes more and the technologies requirements such as hot interface distribution is irregular and carries
Height, to thermal-arrest problem caused by being manufactured of collecting plate.
A kind of distribution thermal-arrest panel forming method, procedure of processing are as follows：
The first step：The molding stainless steel jig plate of process integration is designed, jig plate side is provided with lightening hole, using preceding right
Jig plate carries out preliminary drying so that jig plate internal gas is fully discharged；
Second step：Milling Process is carried out to the clamping face of jig plate so that the flatness in clamping face reach 0.1mm~
0.15mm；
Third walks：Collecting plate opens large area structure hole for irregular cycle and face plate center, and wheeled pre-embedded block is hub-shaped
Shape, wheel shaft size are consistent with the structure hole on panel；On collecting plate reserve technology hole, using collecting plate center location as
Technology hole A establishes three-dimensional system of coordinate centered on the center of circle, in the Z-axis direction, will a little make with what equipment installation was not interfered
For technology hole B；Two dowel holes are pre-machined out in assembly tooling according to the position of two technology holes, then
Two technology holes are processed in top panel and lower panel correspondence；
4th step：Assembly tooling is used cooperatively with welding tooling, is positioned using spot welding, and dress is corresponded in top panel and lower panel
Position coarse positioning with wheeled pre-embedded block, fin flow guiding plate and strip of paper used for sealing, while place solder；
5th step：Wheeled pre-embedded block is assembled with top panel and lower panel, flush, according to the position of spot welding,
By the assembling of fin flow guiding plate between top panel and lower panel, two strip of paper used for sealings are respectively assembled at the appearance of top panel and lower panel
Face；
6th step：It is integral braze-welded that vacuum is carried out to the collecting plate that assembles, upper fixture plate and top panel, lower press plate with
One piece of aluminium alloy technique backing plate is respectively placed between lower panel, partial occlusion is carried out in collecting plate edge, is placed on soldering oven
In, it realizes and is brazed by different temperatures control section；
7th step：Fabrication hole is opened to the collecting plate that soldering is completed and is machined out, the specification for selecting lathe is X-axis row
Journey is more than 1m, and Y-axis stroke is more than 1.1m, and stroke is more than collecting plate appearance and size, technology hole A, the B reserved in being walked to third
It is finished, the mounting hole corresponding to remaining equipment requiring installation is processed on the basis of technology hole A；It is required that pore size is public
Difference is ± 0.0120mm, position degree requirement ± 0.05mm.
Further, the temperature that preliminary drying is carried out in the first step is 650 ± 3 DEG C, and soaking time is 1.5 ± 0.1h.
Further, the 6th step progress partial occlusion refers to place metal in the center of collecting plate edge
Block.
Further, the different temperatures control section of the 6th step welding process refer to will pass through repeatedly heating-heat preservation-
Heating-heat preservation-cooling-keep the temperature-is come out of the stove, and thermocouple is assigned outside collecting plate center and panel, controls collecting plate in real time
Actual temperature and ramp case, ensure collecting plate surrounding and center temperature it is consistent, the temperature difference control within 3 DEG C, in real time
Monitoring and controlling in-furnace temperature, temperature rise period control heter temperature 200 DEG C higher than thermal-arrest plate temperature；Thermal-arrest plate temperature control
It makes as follows：Temperature keeps the temperature 20min when reaching 150 DEG C, temperature keeps the temperature 25min when reaching 220 DEG C, when temperature reaches 315 DEG C
22min is kept the temperature, temperature keeps the temperature 25min when reaching 420 DEG C, temperature keeps the temperature 30min when reaching 525 DEG C, temperature is protected when reaching 575 DEG C
Warm 35min, temperature keep the temperature 12min when reaching 605 DEG C, temperature keeps the temperature 5min when reaching 615 DEG C, to pass through cooling-guarantor later
The stepped temperature control method of temperature-cooling-heat preservation, temperature keep the temperature 7min when dropping to 605 DEG C, temperature is kept the temperature when dropping to 580 DEG C
15min, temperature keep the temperature 25min when dropping to 500 DEG C, temperature keeps the temperature 23min when dropping to 420 DEG C, temperature is kept the temperature when dropping to 355 DEG C
12min prepares to come out of the stove when temperature drops to 300 DEG C, closes heater Temperature fall, beaten after coming out of the stove when collecting plates are cooled down close to room temperature
It opens jig plate and takes out collecting plate.
Vacuum degree in stove is controlled by the vacuum gauge for being brazed furnace body in real time, temperature is until rising to 525 in temperature-rise period
DEG C period inner furnace body vacuum degree control 1.0 × 10-3Pa, later temperature rise to peak value be then lowered into 580 DEG C when
Between section inner furnace body vacuum degree be less than 1.0 × 10-3Pa, temperature drop to 300 DEG C with true down toward the period inner furnace body for preparing to come out of the stove
Reciprocal of duty cycle is controlled 3.0 × 10-3Within Pa；
3 ± 0.1 DEG C/min of heating rate, 5 ± 0.1 DEG C/min of rate of temperature fall, vacuum measurement precision are better than 1Pa.
Advantageous effect：
1st, forming method of the invention can solve novel return satellite Fluid for Single-phase Fluid Loop System collecting plate due to appearance and size
Increase, mechanical interface become more and the technologies requirements such as hot interface distribution is irregular raising, to caused by being manufactured of collecting plate
Thermal-arrest problem.
2nd, the present invention must carry out preliminary drying in new jig plate before, and preliminary drying temperature is 650 ± 3 DEG C, soaking time 1.5
± 0.1h can be such that foreign gas inside jig plate is adequately discharged, and achieve the purpose that purify jig plate.
3rd, wheeled superimposed core of the invention can effectively reduce pre-buried core volume, so as to reduce collecting plate weight；Wide spoke is
Welding surface ensure that sufficient brazing area, so as to ensure the fixing intensity of superimposed core；Wheel shaft is perforated surfaces, and is welded with spoke
When face separation ensure that collecting plate is brazed laggard line number console keyboard hole, mounting hole surrounding panels will not cause collecting plate to become due to machine adds
Shape is snapped.
4th, the present invention respectively places one piece of aluminium alloy craftwork pad between upper fixture plate and top panel, lower press plate and lower panel
Plate can be heated evenly collecting plate.
5th, the present invention carries out partial occlusion, it is ensured that collecting plate marginal position and collecting plate center are as far as possible simultaneously
Reach welding temperature, it is ensured that the welding quality and good appearance of collecting plate.
6th, control and prison of the present invention in Welding to the heating rate of soldering oven, welding temperature and vacuum degree
It surveys, can ensure that welding quality is heated evenly with collecting plate.
7th, the rational welding temperature control of the present invention, it can be ensured that collecting plate welding quality, while collecting plate is prevented to be heated
Deformation.
8th, the present invention on collecting plate reserve technology hole, it is ensured that each hole machined position dimension of thermal-arrest plate surface and
Tolerance.
Description of the drawings
Fig. 1 is brazed schematic diagram for collecting plate；
Fig. 2 adds benchmark schematic diagram for thermal-arrest trigger；
Fig. 3 is jig plate schematic diagram.
Wherein, the wheeled pre-embedded blocks of 1-, 2- top panels, 3- lower panels, 4- fin flow guiding plates, 5- aluminium alloy technique backing plates, 6-
Upper fixture plate, 7- lower press plates, 8- technology holes B, 9- technology hole A.
Specific embodiment
The present invention will now be described in detail with reference to the accompanying drawings and examples.
The present invention provides a kind of distributed thermal-arrest panel forming method, procedure of processing is as follows：
The first step：The molding stainless steel jig plate of process integration is designed, as shown in figure 3, jig plate side is provided with loss of weight
Hole carries out jig plate preliminary drying using preceding, and preliminary drying temperature is 650 ± 3 DEG C, and soaking time is 1.5 ± 0.1h so that in jig plate
Portion's gas is fully discharged；
Second step：To ensure the flatness of the wheeled pre-embedded block 1 of welding and fin flow guiding plate 4, must be requested that jig plate clamping
Facial plane degree is higher than the design requirement flatness of thermal-arrest plate wheeled pre-embedded block 1 and fin flow guiding plate 4, therefore, before use to folder
The clamping face for having plate carries out Milling Process so that the flatness in clamping face reaches 0.1mm~0.15mm；
Third walks：Collecting plate opens large area structure hole for diameter 1m or so irregular cycle and face plate center, as shown in Figure 1, Figure 2
Shown, wheeled pre-embedded block 1 is boss shape, and wheel shaft size is as the structure hole on panel；Technique is reserved on collecting plate to determine
Position hole, using collecting plate center location as technology hole A9, establishes three-dimensional system of coordinate centered on the center of circle, in the Z-axis direction,
Using any do not interfered with equipment installation as technology hole B8；According to the position of two technology holes in assembly tooling
Two dowel holes are pre-machined out, then process two technology holes in top panel 2 and the correspondence of lower panel 3；
4th step：Assembly tooling is used cooperatively with welding tooling, is positioned using spot welding, is corresponded in top panel 2, lower panel 3
The position coarse positioning of wheeled pre-embedded block 1, fin flow guiding plate 4 and strip of paper used for sealing is assembled, while places solder；
5th step：Wheeled pre-embedded block 1 is assembled with top panel 2 and lower panel 3, flush, according to the position of spot welding
It puts, fin flow guiding plate 4 is assembled between top panel 2 and lower panel 3, two strip of paper used for sealings are frame shape, are respectively assembled above
The outer surface of plate 2 and lower panel 3；
6th step：It is integral braze-welded that vacuum is carried out to the collecting plate assembled, in upper fixture plate 6 and top panel 2, lower press plate
One piece of aluminium alloy technique backing plate 5 is respectively placed between 7 and lower panel 3, is heated evenly collecting plate；
Since thermal-arrest plate suqare is big, thickness is thin, and in welding, caloric receptivity is big, and heating rate is fast, and collecting plate edge surface
The close furnace body heating tape in part, be easy to cause the even burning of local corrode, needs accordingly to be protected in collecting plate edge,
Partial occlusion is carried out in collecting plate edge, metal derby is placed in the center of collecting plate edge, ensures collecting plate
Marginal position reaches welding temperature simultaneously as far as possible with collecting plate center；It is then placed in soldering oven, is welded by controlling
Jointing temp, vacuum degree and heating rate realize soldering；
Control welding temperature refer to heating-heat preservation-heating repeatedly that welding process will be Jing Guo different temperatures control section-
Heat preservation-cooling-keep the temperature-is come out of the stove, and thermocouple is assigned outside collecting plate center and panel, controls the reality of collecting plate in real time
Temperature and ramp case ensure that collecting plate surrounding and center temperature are consistent, and the temperature difference is controlled within 3 DEG C, in real time monitoring control
In-furnace temperature processed, temperature rise period control heter temperature 200 DEG C higher than thermal-arrest plate temperature；As shown in table 1, collecting plate temperature
Degree control is as follows：Temperature keeps the temperature 20min when reaching 150 DEG C, temperature keeps the temperature 25min when reaching 220 DEG C, temperature reaches 315
DEG C when keep the temperature 22min, temperature keeps the temperature 25min when reaching 420 DEG C, temperature keeps the temperature 30min when reaching 525 DEG C, temperature reaches 575 DEG C
Shi Baowen 35min, temperature keep the temperature 12min when reaching 605 DEG C, temperature keeps the temperature 5min when reaching 615 DEG C, later will pass through cooling-
The stepped temperature control method of heat preservation-cooling-heat preservation, to prevent collecting plate thermal deformation, temperature keeps the temperature 7min when dropping to 605 DEG C,
Temperature keeps the temperature 15min when dropping to 580 DEG C, temperature keeps the temperature 25min when dropping to 500 DEG C, temperature keeps the temperature 23min when dropping to 420 DEG C, temperature
Degree keeps the temperature 12min when dropping to 355 DEG C, prepares to come out of the stove when temperature drops to 300 DEG C, closes heater Temperature fall, collecting plates is waited to cool down
Jig plate is opened after coming out of the stove during close to room temperature and takes out collecting plate.
Table 1
Vacuum degree in stove is controlled by the vacuum gauge for being brazed furnace body in real time, temperature is until rising to 525 in temperature-rise period
DEG C period inner furnace body vacuum degree control 1.0 × 10-3Pa, later temperature rise to peak value be then lowered into 580 DEG C when
Between section inner furnace body vacuum degree be less than 1.0 × 10-3Pa, temperature drop to 300 DEG C with true down toward the period inner furnace body for preparing to come out of the stove
Reciprocal of duty cycle is controlled 3.0 × 10-3Within Pa；
The parameters such as soaking time and heating rate are adjusted according to by the size of weldering collecting plate, heating rate 3 ± 0.1
DEG C/min, 5 ± 0.1 DEG C/min of rate of temperature fall, vacuum measurement precision is better than 1Pa.
7th step：Fabrication hole is opened to the collecting plate that soldering is completed and is machined out, the specification for selecting lathe is X-axis row
Journey is more than 1m, and Y-axis stroke is more than 1.1m, and stroke is more than collecting plate appearance and size, can if stroke is less than collecting plate appearance and size
There is secondary clamping, can not ensure cold plate appearance and size and tolerance.Reserved technology hole A9, technique in being walked to third
Location hole B8 is finished, and the installation of 80 corresponding to remaining equipment requiring installation more is processed on the basis of technology hole A9
Hole；It is required that pore size tolerance is ± 0.0120mm, position degree requirement ± 0.05mm.
In conclusion the foregoing is merely a prefered embodiment of the invention, it is not intended to limit the scope of the present invention.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in the present invention's
Within protection domain.
Claims (6)
1. a kind of distribution thermal-arrest panel forming method, which is characterized in that procedure of processing is as follows：
The first step：The molding stainless steel jig plate of process integration is designed, jig plate side is provided with lightening hole, using preceding to fixture
Plate carries out preliminary drying so that jig plate internal gas is fully discharged；
Second step：Milling Process is carried out to the clamping face of jig plate so that the flatness in clamping face reaches 0.1mm~0.15mm；
Third walks：Collecting plate opens large area structure hole for irregular cycle and face plate center, and wheeled pre-embedded block is boss shape, is taken turns
Axis size is consistent with the structure hole on panel；Technology hole is reserved on collecting plate, using collecting plate center location as technique
Location hole A establishes three-dimensional system of coordinate centered on the center of circle, in the Z-axis direction, using any do not interfered with equipment installation as work
Skill location hole B；Two dowel holes are pre-machined out in assembly tooling according to the position of two technology holes, then upper
Panel and lower panel correspondence process two technology holes；
4th step：Assembly tooling is used cooperatively with welding tooling, is positioned using spot welding, and assembly wheel is corresponded in top panel and lower panel
The position coarse positioning of formula pre-embedded block, fin flow guiding plate and strip of paper used for sealing, while place solder；
5th step：Wheeled pre-embedded block is assembled with top panel and lower panel, flush, according to the position of spot welding, by wing
Piece deflector is assemblied between top panel and lower panel, and two strip of paper used for sealings are respectively assembled at the outer surface of top panel and lower panel；
6th step：It is integral braze-welded that vacuum is carried out to the collecting plate that assembles, upper fixture plate and top panel, lower press plate with it is following
One piece of aluminium alloy technique backing plate is respectively placed between plate, partial occlusion is carried out in collecting plate edge, is placed in soldering oven, lead to
It crosses control welding temperature, vacuum degree and heating rate and realizes soldering；
7th step：Fabrication hole is opened to the collecting plate that soldering is completed and is machined out, the specification for selecting lathe is that X-axis stroke is big
In 1m, Y-axis stroke is more than 1.1m, and stroke is more than collecting plate appearance and size, and technology hole A, the B reserved in being walked to third is carried out
Finishing, processes the mounting hole corresponding to remaining equipment requiring installation on the basis of technology hole A；It is required that pore size tolerance is
± 0.0120mm, position degree requirement ± 0.05mm.
2. distribution thermal-arrest panel forming method as described in claim 1, which is characterized in that preliminary drying is carried out in the first step
Temperature is 650 ± 3 DEG C, and soaking time is 1.5 ± 0.1h.
3. distribution thermal-arrest panel forming method as described in claim 1, which is characterized in that the 6th step carries out partial occlusion
Refer to place metal derby in the center of collecting plate edge.
4. distribution thermal-arrest panel forming method as described in claim 1, which is characterized in that the 6th step controls welding temperature
Refer to that heating-heat preservation-heating-heat preservation-cooling-repeatedly that welding process will be Jing Guo different temperatures control section keeps the temperature-goes out
Stove assigns thermocouple outside collecting plate center and panel, controls the actual temperature and ramp case of collecting plate in real time, ensures collection
Hot plate surrounding and center temperature are consistent, and the temperature difference is controlled within 3 DEG C, real-time inspection and control in-furnace temperature, the temperature rise period, will
Heter temperature is controlled 200 DEG C higher than thermal-arrest plate temperature；The control of thermal-arrest plate temperature is as follows：Temperature is protected when reaching 150 DEG C
Warm 20min, temperature keep the temperature 25min when reaching 220 DEG C, temperature keeps the temperature 22min when reaching 315 DEG C, temperature is kept the temperature when reaching 420 DEG C
25min, temperature keep the temperature 30min when reaching 525 DEG C, temperature keeps the temperature 35min when reaching 575 DEG C, temperature is kept the temperature when reaching 605 DEG C
12min, temperature keep the temperature 5min when reaching 615 DEG C, stepped temperature control side that later will be Jing Guo cooling-heat preservation-cooling-heat preservation
Method, temperature keep the temperature 7min when dropping to 605 DEG C, temperature keeps the temperature 15min when dropping to 580 DEG C, temperature keeps the temperature 25min when dropping to 500 DEG C,
Temperature keeps the temperature 23min when dropping to 420 DEG C, temperature keeps the temperature 12min when dropping to 355 DEG C, prepares to come out of the stove when temperature drops to 300 DEG C, close
Heater Temperature fall opens jig plate after coming out of the stove when collecting plates are cooled down close to room temperature and takes out collecting plate.
5. distribution thermal-arrest panel forming method as described in claim 1, which is characterized in that the 6th step control vacuum degree is
Refer to and control vacuum degree in stove in real time by being brazed the vacuum gauge of furnace body, in temperature-rise period temperature until rise to 525 DEG C when
Between section inner furnace body vacuum degree control 1.0 × 10-3Pa, later temperature rise to peak value be then lowered into 580 DEG C of period
Furnace body vacuum degree is less than 1.0 × 10-3Pa, temperature drop to 300 DEG C of period inner furnace body vacuum degree controls to come out of the stove down toward preparation
System is 3.0 × 10-3Within Pa, vacuum measurement precision is better than 1Pa.
6. distribution thermal-arrest panel forming method as described in claim 1, which is characterized in that the 6th step controls heating rate
Refer to 3 ± 0.1 DEG C/min of heating rate, 5 ± 0.1 DEG C/min of rate of temperature fall.
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| CN106312487B true CN106312487B (en) | 2018-06-08 |
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| US2874941A (en) * | 1955-09-06 | 1959-02-24 | Air Preheater | Brazed extended surface heat exchanger |
| US3212572A (en) * | 1961-06-21 | 1965-10-19 | United Aircraft Prod | Plate type heat exchanger |
| JPH03230096A (en) * | 1990-02-06 | 1991-10-14 | Nissan Motor Co Ltd | Plate fin type heat exchanger |
| CN201259336Y (en) * | 2008-07-08 | 2009-06-17 | 赵耀华 | Novel flat-plate solar heat collector |
| CN101644489A (en) * | 2008-08-08 | 2010-02-10 | 深圳市顺达太阳能有限公司 | Novel solar collector plate core and manufacturing process thereof |
| CN101782341A (en) * | 2010-03-11 | 2010-07-21 | 宁波汇富机电制造有限公司 | Aluminum plate-fin type heat exchanger and vacuum braze welding process method thereof |
| CN102620453A (en) * | 2012-04-09 | 2012-08-01 | 中国科学院工程热物理研究所 | Unit heat pipe heat absorber and manufacturing method thereof |
| CN103128518A (en) * | 2011-12-05 | 2013-06-05 | 常州天天太阳能有限公司 | Machining technology of solar air flat plate collector with plate core formed through blow molding |
| CN104923873A (en) * | 2015-05-21 | 2015-09-23 | 无锡中海换热器有限公司 | Vacuum brazing technology method of aluminium plate-fin heat exchanger |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2874941A (en) * | 1955-09-06 | 1959-02-24 | Air Preheater | Brazed extended surface heat exchanger |
| US3212572A (en) * | 1961-06-21 | 1965-10-19 | United Aircraft Prod | Plate type heat exchanger |
| JPH03230096A (en) * | 1990-02-06 | 1991-10-14 | Nissan Motor Co Ltd | Plate fin type heat exchanger |
| CN201259336Y (en) * | 2008-07-08 | 2009-06-17 | 赵耀华 | Novel flat-plate solar heat collector |
| CN101644489A (en) * | 2008-08-08 | 2010-02-10 | 深圳市顺达太阳能有限公司 | Novel solar collector plate core and manufacturing process thereof |
| CN101782341A (en) * | 2010-03-11 | 2010-07-21 | 宁波汇富机电制造有限公司 | Aluminum plate-fin type heat exchanger and vacuum braze welding process method thereof |
| CN103128518A (en) * | 2011-12-05 | 2013-06-05 | 常州天天太阳能有限公司 | Machining technology of solar air flat plate collector with plate core formed through blow molding |
| CN102620453A (en) * | 2012-04-09 | 2012-08-01 | 中国科学院工程热物理研究所 | Unit heat pipe heat absorber and manufacturing method thereof |
| CN104923873A (en) * | 2015-05-21 | 2015-09-23 | 无锡中海换热器有限公司 | Vacuum brazing technology method of aluminium plate-fin heat exchanger |
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| Publication number | Publication date |
|---|---|
| CN106312487A (en) | 2017-01-11 |
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