CN106141351A - A kind of salt bath brazing technique of radar antenna - Google Patents
A kind of salt bath brazing technique of radar antenna Download PDFInfo
- Publication number
- CN106141351A CN106141351A CN201610617777.1A CN201610617777A CN106141351A CN 106141351 A CN106141351 A CN 106141351A CN 201610617777 A CN201610617777 A CN 201610617777A CN 106141351 A CN106141351 A CN 106141351A
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- Prior art keywords
- antenna
- salt bath
- fixture
- salt
- furnace
- 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.)
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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
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/20—Preliminary treatment of work or areas to be soldered, e.g. in respect of a galvanic coating
-
- 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
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/0008—Soldering, e.g. brazing, or unsoldering specially adapted for particular articles or work
- B23K1/0016—Brazing of electronic components
-
- 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
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/008—Soldering within a furnace
-
- 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
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/08—Auxiliary devices therefor
-
- 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
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/08—Auxiliary devices therefor
- B23K3/087—Soldering or brazing jigs, fixtures or clamping means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aerials With Secondary Devices (AREA)
- Details Of Aerials (AREA)
Abstract
nullThe invention discloses the salt bath brazing technique of a kind of radar antenna，Before described clamping, fixture is carried out pretreatment，Remove the greasy dirt on fixture、Residual brazing flux、Corrosion and other dirt，Gauging fixture，Ensure that fixture can normally work，Ensure that the conforming product rate produced is high，The control of the gap value between described fixture and antenna，Reduce the deformation that the antenna of high temperature deformation is caused in welding process by fixture，Described step salt bath furnace checks the degree of depth of fused salt in salt bath furnace and the composition of fused salt before use，Ensure that the degree of depth of fused salt and the composition of fused salt meet welding requirements，Described fused salt is carried out processed，Fused salt can be solved and can absorb the moisture in air，The problem affecting welding quality，Again antenna is tested after described rewelding，May insure that the outgoing of antenna，Use this kind of salt bath brazing processes radar antenna out to have welding quality is high and conforming product rate is high advantage，Market potential is huge，Have a extensive future.
Description
Technical field
The invention belongs to radar antenna manufacture field, it is more particularly related to the salt bath pricker of a kind of radar antenna
Welding.
Background technology
Radar is used for radiating and receiving electromagnetic wave and determine the equipment of its detection direction.Radar must be energy quantity set when launching
In be radiated need irradiate direction；And the echo of detection direction is the most only received when receiving, tell target simultaneously
Orientation and the elevation angle, or alternative one.In three coordinates (orientation, the elevation angle and distance) of radar surveying target location, there are two
The measurement of coordinate (orientation and the elevation angle) is the most relevant with the performance of antenna.Therefore, antenna performance is compared to it for radar equipment
His electronic equipment (such as communication equipment etc.) is even more important.It is the highest that the salt bath brazing technique of current radar antenna also exists welding quality
And the problem that conforming product rate is low.
Summary of the invention
Problem to be solved by this invention is to provide the salt bath brazing technique of a kind of radar antenna.
To achieve these goals, the technical scheme that the present invention takes is:
The salt bath brazing technique of a kind of radar antenna, comprises the steps:
(1) preheating
First antenna carries out the pre-heat treatment, and the temperature of described the pre-heat treatment is 100-200 DEG C, and the time of described the pre-heat treatment is
30-60min；
(2) clamping
Then fixture is placed on Assembling bogie, removes upper pinch mechanism, then backing plate is placed on clamp bottom board, location
Finger setting, carries out clamping by the antenna after preheating after regulating the clamping force of each fastening spring, is then put into together with fixture by antenna
In preheating furnace, the temperature of described preheating furnace is 500-600 DEG C；
(3) welding
Cut off preheating furnace power supply after salt bath furnace temperature of molten salt is raised to 400-500 DEG C, antenna is hung together with fixture from preheating furnace
Go out, be quickly transferred in salt bath furnace, weld, when antenna centre temperature reaches 600-700 DEG C, antenna is the slowest
Speed hangs out salt bath, and topples over remaining fused salt in antenna inner chamber as much as possible totally as early as possible, then antenna is kept level,
It is still in above salt bath and cools down；
(4) after welding treatment
After antenna is cooled to 180-220 DEG C, antenna is immersed in fluidized boiled water groove together with fixture and carries out boiling washing, tear open after taking-up
Open fixture and take out antenna, put it in purpose circulation case and process；
(5) inspection
The antenna of after welding treatment being carried out service check, checks qualified packaging to dispatch from the factory, the carrying out of disqualified upon inspection is reprocessed；
(6) rewelding
Fixture and antenna, again by clamp, are then put in salt bath furnace simultaneously and are returned by the antenna of disqualified upon inspection
Repair weldering.
Preferably, described step (2) carries out pretreatment to fixture before clamping.
Preferably, the method for described pretreatment is for carry out pickling to fixture, then at chucking surface even application one floor height
Temperature bonding agent, then takes out after heating in preheating furnace, is cooled to room temperature, stand-by.
Preferably, the gap between described fixture and antenna is 0.01-0.03mm.
Preferably, in described step (3), salt bath furnace needs to check the degree of depth of fused salt in salt bath furnace and fused salt before use
Composition.
Preferably, in described step (3), salt bath furnace also needs to fused salt is carried out processed before use.
Preferably, in described step (3), the time of welding is 45-75s.
Preferably, antenna is tested after rewelding by described step (6) again.
Beneficial effect: the invention provides the salt bath brazing technique of a kind of radar antenna, before described clamping, fixture is carried out
Pretreatment, removes the greasy dirt on fixture, residual brazing flux, corrosion and other dirt, gauging fixture, it is ensured that fixture can normally work,
Ensure that the conforming product rate produced is high, the control of the gap value between described fixture and antenna, reduces fixture and was welding
The deformation in journey caused the antenna of high temperature deformation, the degree of depth of fused salt and molten checked in salt bath furnace before use by described step salt bath furnace
The composition of salt, it is ensured that the degree of depth of fused salt and the composition of fused salt meet welding requirements, described carries out processed to fused salt, can solve
Certainly fused salt can absorb the moisture in air, and antenna is tested after described rewelding by problem again that affect welding quality, can
To guarantee the outgoing of antenna, use this kind of salt bath brazing processes radar antenna out have welding quality high and
The advantage that conforming product rate is high, market potential is huge, has a extensive future.
Detailed description of the invention
Embodiment 1:
The salt bath brazing technique of a kind of radar antenna, comprises the steps:
(1) preheating
First antenna carries out the pre-heat treatment, and the temperature of described the pre-heat treatment is 100 DEG C, and the time of described the pre-heat treatment is
30min；
(2) clamping
Then fixture is placed on Assembling bogie, removes upper pinch mechanism, then backing plate is placed on clamp bottom board, location
Finger setting, carries out clamping by the antenna after preheating after regulating the clamping force of each fastening spring, is then put into together with fixture by antenna
In preheating furnace, the temperature of described preheating furnace is 500 DEG C, and fixture carries out before clamping pretreatment, and the method for described pretreatment is
Fixture is carried out pickling, then at one layer of high temperature adhesive of chucking surface even application, then takes out after heating in preheating furnace,
Being cooled to room temperature, stand-by, the gap between described fixture and antenna is 0.01mm；
(3) welding
Cut off preheating furnace power supply after salt bath furnace temperature of molten salt is raised to 400 DEG C, antenna is hung out together with fixture from preheating furnace, fast
Speed is transferred to, in salt bath furnace, weld, and the time of described welding is 45s, when antenna centre temperature reaches 600 DEG C,
Antenna is hung out the most at a slow speed salt bath, and topples over totally as much as possible, then by antenna by antenna inner chamber remains fused salt as early as possible
Keeping level, be still in above salt bath and cool down, described salt bath furnace needs to check fused salt in salt bath furnace before use
The degree of depth, the composition of fused salt and fused salt is carried out processed；
(4) after welding treatment
After antenna is cooled to 180 DEG C, antenna is immersed in fluidized boiled water groove together with fixture and carries out boiling washing, after taking-up, take folder apart
Tool takes out antenna, puts it in purpose circulation case and processes；
(5) inspection
The antenna of after welding treatment being carried out service check, checks qualified packaging to dispatch from the factory, the carrying out of disqualified upon inspection is reprocessed；
(6) rewelding
Fixture and antenna, again by clamp, are then put in salt bath furnace simultaneously and are returned by the antenna of disqualified upon inspection
Repair weldering, again antenna is tested after rewelding.
Embodiment 2:
The salt bath brazing technique of a kind of radar antenna, comprises the steps:
(1) preheating
First antenna carries out the pre-heat treatment, and the temperature of described the pre-heat treatment is 150 DEG C, and the time of described the pre-heat treatment is
45min；
(2) clamping
Then fixture is placed on Assembling bogie, removes upper pinch mechanism, then backing plate is placed on clamp bottom board, location
Finger setting, carries out clamping by the antenna after preheating after regulating the clamping force of each fastening spring, is then put into together with fixture by antenna
In preheating furnace, the temperature of described preheating furnace is 550 DEG C, and fixture carries out before clamping pretreatment, and the method for described pretreatment is
Fixture is carried out pickling, then at one layer of high temperature adhesive of jig table even application, then takes out after heating in preheating furnace, cold
But arriving room temperature, stand-by, the gap between described fixture and antenna is 0.02mm；
(3) welding
Cut off preheating furnace power supply after salt bath furnace temperature of molten salt is raised to 450 DEG C, antenna is hung out together with fixture from preheating furnace, fast
Speed is transferred to, in salt bath furnace, weld, and the time of described welding is 60s, when antenna centre temperature reaches 650 DEG C,
Antenna is hung out the most at a slow speed salt bath, and topples over totally as much as possible, then by antenna by antenna inner chamber remains fused salt as early as possible
Keeping level, be still in above salt bath and cool down, described salt bath furnace needs to check fused salt in salt bath furnace before use
The degree of depth, the composition of fused salt and fused salt is carried out processed；
(4) after welding treatment
After antenna is cooled to 200 DEG C, antenna is immersed in fluidized boiled water groove together with fixture and carries out boiling washing, after taking-up, take folder apart
Tool takes out antenna, puts it in purpose circulation case and processes；
(5) inspection
The antenna of after welding treatment being carried out service check, checks qualified packaging to dispatch from the factory, the carrying out of disqualified upon inspection is reprocessed；
(6) rewelding
Fixture and antenna, again by clamp, are then put in salt bath furnace simultaneously and are returned by the antenna of disqualified upon inspection
Repair weldering, again antenna is tested after rewelding.
Embodiment 3
The salt bath brazing technique of a kind of radar antenna, comprises the steps:
(1) preheating
First antenna carries out the pre-heat treatment, and the temperature of described the pre-heat treatment is 200 DEG C, and the time of described the pre-heat treatment is
60min；
(2) clamping
Then fixture is placed on Assembling bogie, removes upper pinch mechanism, then backing plate is placed on clamp bottom board, location
Finger setting, carries out clamping by the antenna after preheating after regulating the clamping force of each fastening spring, is then put into together with fixture by antenna
In preheating furnace, the temperature of described preheating furnace is 600 DEG C, and fixture carries out before clamping pretreatment, and the method for described pretreatment is
Fixture is carried out pickling, then at one layer of high temperature adhesive of chucking surface even application, then takes out after heating in preheating furnace,
Being cooled to room temperature, stand-by, the gap between described fixture and antenna is 0.03mm；
(3) welding
Cut off preheating furnace power supply after salt bath furnace temperature of molten salt is raised to 500 DEG C, antenna is hung out together with fixture from preheating furnace, fast
Speed is transferred to, in salt bath furnace, weld, and the time of described welding is 75s, when antenna centre temperature reaches 700 DEG C,
Antenna is hung out the most at a slow speed salt bath, and topples over totally as much as possible, then by antenna by antenna inner chamber remains fused salt as early as possible
Keeping level, be still in above salt bath and cool down, described salt bath furnace needs to check fused salt in salt bath furnace before use
The degree of depth, the composition of fused salt and fused salt is carried out processed；
(4) after welding treatment
After antenna is cooled to 220 DEG C, antenna is immersed in fluidized boiled water groove together with fixture and carries out boiling washing, after taking-up, take folder apart
Tool takes out antenna, puts it in purpose circulation case and processes；
(5) inspection
The antenna of after welding treatment being carried out service check, checks qualified packaging to dispatch from the factory, the carrying out of disqualified upon inspection is reprocessed；
(6) rewelding
Fixture and antenna, again by clamp, are then put in salt bath furnace simultaneously and are returned by the antenna of disqualified upon inspection
Repair weldering, again antenna is tested after rewelding.
After above method, taking out sample respectively, measurement result is as follows:
| Detection project | Embodiment 1 | Embodiment 2 | Embodiment 3 | Existing index |
| Scale error (mm) | 0.02 | 0.01 | 0.01 | 0.05 |
| Welding quality | Higher | Higher | Higher | High |
| Qualification rate (%) | 98.7 | 99.2 | 99.0 | 95.6 |
Can draw according to above table data, when embodiment 2 parameter, the radar antenna after salt bath brazing is than prior art pricker
The scale error of the radar antenna of postwelding is little, and welding quality and qualification rate also increase, and are now more beneficial for radar antenna
Soldering.
The invention provides the salt bath brazing technique of a kind of radar antenna, before described clamping, fixture is carried out pretreatment, go
Except the greasy dirt on fixture, residual brazing flux, corrosion and other dirt, gauging fixture, it is ensured that fixture can normally work, it is ensured that produces
The conforming product rate come is high, the control of the gap value between described fixture and antenna, reduces fixture in welding process to high temperature
The deformation that causes of antenna of deformation, described step salt bath furnace checks the degree of depth of fused salt in salt bath furnace and the composition of fused salt before use,
Ensure that the composition of the degree of depth of fused salt and fused salt meets welding requirements, described fused salt is carried out processed, fused salt meeting can be solved
Absorb the moisture in air, the problem affecting welding quality, again antenna is tested after described rewelding, it can be ensured that sky
The outgoing of line, welding quality is high and product is qualified to use this kind of salt bath brazing processes radar antenna out to have
The advantage that rate is high, market potential is huge, has a extensive future.
The foregoing is only embodiments of the invention, not thereby limit the scope of the claims of the present invention, every utilize this
Equivalent structure or equivalence flow process that bright description is made convert, or are directly or indirectly used in other relevant technology necks
Territory, is the most in like manner included in the scope of patent protection of the present invention.
Claims (8)
1. the salt bath brazing technique of a radar antenna, it is characterised in that comprise the steps:
(1) preheating
First antenna carries out the pre-heat treatment, and the temperature of described the pre-heat treatment is 100-200 DEG C, and the time of described the pre-heat treatment is
30-60min；
(2) clamping
Then fixture is placed on Assembling bogie, removes upper pinch mechanism, then backing plate is placed on clamp bottom board, location
Finger setting, carries out clamping by the antenna after preheating after regulating the clamping force of each fastening spring, is then put into together with fixture by antenna
In preheating furnace, the temperature of described preheating furnace is 500-600 DEG C；
(3) welding
Cut off preheating furnace power supply after salt bath furnace temperature of molten salt is raised to 400-500 DEG C, antenna is hung together with fixture from preheating furnace
Go out, be quickly transferred in salt bath furnace, weld, when antenna centre temperature reaches 600-700 DEG C, antenna is the slowest
Speed hangs out salt bath, and topples over remaining fused salt in antenna inner chamber as much as possible totally as early as possible, then antenna is kept level,
It is still in above salt bath and cools down；
(4) after welding treatment
After antenna is cooled to 180-220 DEG C, antenna is immersed in fluidized boiled water groove together with fixture and carries out boiling washing, tear open after taking-up
Open fixture and take out antenna, put it in purpose circulation case and process；
(5) inspection
The antenna of after welding treatment being carried out service check, checks qualified packaging to dispatch from the factory, the carrying out of disqualified upon inspection is reprocessed；
(6) rewelding
Fixture and antenna, again by clamp, are then put in salt bath furnace simultaneously and are returned by the antenna of disqualified upon inspection
Repair weldering.
2. according to the salt bath brazing technique of a kind of radar antenna described in claim 1, it is characterised in that: in described step (2)
Before clamping, fixture is carried out pretreatment.
3. according to the salt bath brazing technique of a kind of radar antenna described in claim 2, it is characterised in that: the side of described pretreatment
Method is for carry out pickling to fixture, then at one layer of high temperature adhesive of chucking surface even application, then in preheating furnace after heating
Take out, be cooled to room temperature, stand-by.
4. according to the salt bath brazing technique of a kind of radar antenna described in claim 1, it is characterised in that: described fixture and antenna
Between gap be 0.01-0.03mm.
5. according to the salt bath brazing technique of a kind of radar antenna described in claim 1, it is characterised in that: in described step (3)
Salt bath furnace needs to check the degree of depth and the composition of fused salt of fused salt in salt bath furnace before use.
6. according to the salt bath brazing technique of a kind of radar antenna described in claim 1, it is characterised in that: in described step (3)
Salt bath furnace also needs to fused salt is carried out processed before use.
7. according to the salt bath brazing technique of a kind of radar antenna described in claim 1, it is characterised in that: in described step (3)
The time of welding is 45-75s.
8. according to the salt bath brazing technique of a kind of radar antenna described in claim 1, it is characterised in that: in described step (6)
Again antenna is tested after rewelding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610617777.1A CN106141351A (en) | 2016-08-01 | 2016-08-01 | A kind of salt bath brazing technique of radar antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610617777.1A CN106141351A (en) | 2016-08-01 | 2016-08-01 | A kind of salt bath brazing technique of radar antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106141351A true CN106141351A (en) | 2016-11-23 |
Family
ID=57328088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610617777.1A Withdrawn CN106141351A (en) | 2016-08-01 | 2016-08-01 | A kind of salt bath brazing technique of radar antenna |
Country Status (1)
| Country | Link |
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| CN (1) | CN106141351A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107214411A (en) * | 2017-07-07 | 2017-09-29 | 中国科学院工程热物理研究所 | Printed circuit board Welding of Heat-exchanger system and method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1381607A (en) * | 2002-01-29 | 2002-11-27 | 鞍山市银马热浸镀铝有限公司 | Integrally hot-dip aluminized heat exchanger and its technology |
| CN101402150A (en) * | 2008-10-22 | 2009-04-08 | 杭州杭氧压缩机有限公司 | Aluminum impeller air brazing process |
| CN103639560A (en) * | 2013-11-28 | 2014-03-19 | 青岛蓝图文化传播有限公司市南分公司 | Salt bath brazing craft process of 6063 aluminum alloy |
| CN105499728A (en) * | 2015-12-25 | 2016-04-20 | 青岛玻莱莫斯新材料技术有限公司 | Salt bath brazing technology process of aluminum alloy |
-
2016
- 2016-08-01 CN CN201610617777.1A patent/CN106141351A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1381607A (en) * | 2002-01-29 | 2002-11-27 | 鞍山市银马热浸镀铝有限公司 | Integrally hot-dip aluminized heat exchanger and its technology |
| CN101402150A (en) * | 2008-10-22 | 2009-04-08 | 杭州杭氧压缩机有限公司 | Aluminum impeller air brazing process |
| CN103639560A (en) * | 2013-11-28 | 2014-03-19 | 青岛蓝图文化传播有限公司市南分公司 | Salt bath brazing craft process of 6063 aluminum alloy |
| CN105499728A (en) * | 2015-12-25 | 2016-04-20 | 青岛玻莱莫斯新材料技术有限公司 | Salt bath brazing technology process of aluminum alloy |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107214411A (en) * | 2017-07-07 | 2017-09-29 | 中国科学院工程热物理研究所 | Printed circuit board Welding of Heat-exchanger system and method |
| CN107214411B (en) * | 2017-07-07 | 2019-09-24 | 衡水中科衡发动力装备有限公司 | Printed circuit board Welding of Heat-exchanger system and method |
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Application publication date: 20161123 |
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