CN113547183A - Welding tool and method for gas phase reflow soldering - Google Patents

Welding tool and method for gas phase reflow soldering Download PDF

Info

Publication number
CN113547183A
CN113547183A CN202110676311.XA CN202110676311A CN113547183A CN 113547183 A CN113547183 A CN 113547183A CN 202110676311 A CN202110676311 A CN 202110676311A CN 113547183 A CN113547183 A CN 113547183A
Authority
CN
China
Prior art keywords
cover plate
hole
bottom plate
plate
heat conduction
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.)
Pending
Application number
CN202110676311.XA
Other languages
Chinese (zh)
Inventor
王晓学
王莎鸥
吕志军
李建国
余春雷
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Institute of Radio Measurement
Original Assignee
Beijing Institute of Radio Measurement
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Beijing Institute of Radio Measurement filed Critical Beijing Institute of Radio Measurement
Priority to CN202110676311.XA priority Critical patent/CN113547183A/en
Publication of CN113547183A publication Critical patent/CN113547183A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K3/00Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
    • B23K3/08Auxiliary devices therefor
    • B23K3/087Soldering or brazing jigs, fixtures or clamping means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K1/00Soldering, e.g. brazing, or unsoldering
    • B23K1/012Soldering with the use of hot gas

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Connection Of Electric Components To Printed Circuits (AREA)

Abstract

The embodiment of the invention discloses a welding tool and a welding method for gas phase reflow soldering, which comprises the following steps: a base plate; the cover plate is assembled at a position above the bottom plate through a bracket; the transverse strip is assembled on the plate surface of one side, far away from the cover plate, of the bottom plate; and a pressure spring positioned between the bottom plate and the cover plate; the bottom plate comprises first heat conduction holes penetrating through the surfaces of the two sides of the bottom plate; the cover plate comprises a through hole which is corresponding to the first heat conduction hole and penetrates through the surfaces of the two sides of the cover plate; the through-hole includes: a positioning hole located at one side close to the bottom plate; and a second heat conduction hole located on a side facing away from the base plate; one end of the pressure spring is assembled in the positioning hole. The work can reduce extra heat absorption, increase heat conduction efficiency, and improve welding quality.

Description

Welding tool and method for gas phase reflow soldering
Technical Field
The invention relates to the technical field of welding in the micro-assembly technology. And more particularly, to a welding tool and method for gas phase reflow soldering.
Background
The micro-assembly technique is to assemble various components and chips required by a circuit on a multilayer interconnection substrate by using welding and packaging processes to form a complete and reliable electronic assembly or system. The welding is a key process in the micro-assembly technology, directly influences the reliability of the connection of components, and the current mainstream welding technology mainly adopts reflow welding. The reflow soldering mainly includes full hot air reflow soldering, infrared reflow soldering, vapor phase reflow soldering, and the like according to a heat transfer method. The gas phase reflow soldering not only can provide a rapid and uniform heating method and soldering of a high-complexity medium plate in an oxygen-free environment, but also can not cause overheating of any device in the whole reflow process. Generally, in the process of welding a microwave dielectric plate and a metal shell, a pressing block is used for applying certain pressure to the dielectric plate, however, the gas phase reflow welding is conducted by steam, the heat capacity of a welding assembly is increased by using the pressing block, the welding time is long, and the welding efficiency and the welding quality are reduced.
Disclosure of Invention
In order to solve the above problems, at least one problem to be solved by the present invention is to provide a welding tool for gas phase reflow soldering, which can increase heat conduction efficiency and improve soldering quality.
The invention also provides a use method of the welding tool comprising the welding tool.
In order to achieve the purpose, the invention adopts the following technical scheme:
according to an aspect of the present invention, there is provided a soldering tool for vapor phase reflow soldering, including:
a base plate;
the cover plate is assembled at a position above the bottom plate through a bracket;
the transverse strip is assembled on the plate surface of one side, far away from the cover plate, of the bottom plate;
the pressure spring is positioned between the bottom plate and the cover plate; and
the pressure head is connected and fixed at one end of the pressure spring, which is far away from the cover plate;
the bottom plate comprises first heat conduction holes penetrating through the surfaces of the two sides of the bottom plate; the cover plate comprises a through hole which is corresponding to the first heat conduction hole and penetrates through the surfaces of the two sides of the cover plate;
the through-hole includes:
a positioning hole located at one side close to the bottom plate; and
a second heat conduction hole located on a side facing away from the base plate;
one end of the pressure spring, which is far away from the pressure head, is assembled in the positioning hole.
In addition, it is preferable that the aperture of the positioning hole is larger than the aperture of the second heat conduction hole;
the sum of the depths of the positioning hole and the second heat conduction hole is equal to the thickness of the cover plate.
In addition, the welding tool preferably further comprises a pressure head, and one end, far away from the cover plate, of the pressure spring is fixedly connected with the pressure head.
In addition, preferably, the bottom plate further comprises a heat conduction through hole located between the first heat conduction holes, and the heat conduction through hole penetrates through the two side surfaces of the bottom plate;
the aperture of the heat conduction through hole is smaller than that of the first heat conduction hole.
In addition, preferably, two brackets are fixedly combined on the bottom plate, and the two brackets are positioned on two opposite side sides of the bottom plate;
the cover plate comprises a bracket mounting hole correspondingly matched with the bracket.
In addition, preferably, the side surface of the bracket comprises a plurality of threaded holes arranged along the axial direction of the first heat conduction hole;
the side wall of the cover plate comprises a fixing hole matched with the threaded hole;
the cover plate is configured to be movable along the bracket to adjust a relative position with respect to the base plate.
In addition, preferably, threaded through holes are processed at two ends of the transverse bar;
the cover plate comprises a cross bar mounting hole correspondingly matched with the threaded through hole.
In addition, preferably, the bottom plate, the cover plate and the cross bars are made of aluminum, aluminum alloy, copper aluminum alloy or graphite.
According to another aspect of the present invention, the present invention provides a method for using a welding tool, the method comprising the steps of:
1) placing a product to be welded between the cover plate and the base plate;
2) adjusting the distance between the bottom plate and the cover plate to enable the pressure head to contact a product to be welded;
3) fixing the cross bars with the cover plate;
4) adjusting the position relation between the cross bar and the cover plate to enable the pressure head to apply pressure to the product to be welded;
5) and putting the product to be welded and the tool into equipment for gas phase reflow soldering.
The beneficial effect of this application is as follows:
aiming at the technical problems in the prior art, the embodiment of the application provides a welding tool for gas phase reflow welding and a using method thereof, wherein a pressure spring is utilized to apply pressure to a product to be welded, so that the stress of each welding point of the product to be welded is consistent in the gas phase reflow welding process; through set up heat conduction hole and heat conduction through-hole on apron and bottom plate, adopt the horizontal bar to replace the base, all be in order to reduce extra heat absorption, increase heat-conduction efficiency, improve welding quality. In the use, also exert pressure for the pressure spring when fixing apron and horizontal bar, the reaction force that the compression of pressure spring atress produced transmits the area welding product through the pressure head, for the solder joint of waiting to weld the product applys pressure, the size of applying pressure can directly influence the quality of solder joint. In addition, in the welding process of gas phase reflow soldering, products to be welded or tools do not need to be interfered, and the phenomenon that the void ratio of welding spots is large due to uneven placement or vibration can be avoided.
Drawings
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Fig. 1 shows a schematic structural diagram of a welding tool provided by the present invention.
Fig. 2 shows a schematic view of the assembly of the cover plate and the base plate provided by the present invention.
Fig. 3 shows a top view of a cover plate provided by the present invention.
Fig. 4 shows a cross-sectional view of a cover plate provided by the present invention.
Fig. 5 shows a schematic view of a crossbar provided by the present invention.
Detailed Description
In order to more clearly illustrate the invention, the invention is further described below with reference to preferred embodiments and the accompanying drawings. Similar parts in the figures are denoted by the same reference numerals. It is to be understood by persons skilled in the art that the following detailed description is illustrative and not restrictive, and is not to be taken as limiting the scope of the invention.
In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It is further noted that, in the description of the present application, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
In order to overcome the defects in the prior art, an embodiment of the present invention provides a welding tool for vapor phase reflow soldering, which is shown in fig. 1 to 5, and includes:
a base plate 1;
a cover plate 3 assembled at a position above the base plate 1 through a bracket 2;
a cross bar 4 mounted on the side of the base plate 1 remote from the cover plate 3; and
the pressure spring 5 is positioned between the bottom plate 1 and the cover plate 3;
the bottom plate 1 comprises first heat conduction holes 6 which penetrate through the surfaces of two sides of the bottom plate 1; the arrangement of the first heat conduction holes 6 on the bottom plate 1 is arranged according to the shape of a product to be welded and the distribution of welding points;
the cover plate 3 comprises through holes 7 which are corresponding to the heat conduction holes 6 and penetrate through the two side surfaces of the cover plate 3;
the through-hole 7 includes:
a positioning hole 71 located on a side close to the base plate 1; and
a second heat conduction hole 72 at a side facing away from the base plate 1;
one end of the pressure spring 5 is assembled in the positioning hole 71.
In the present embodiment, the shape of the base plate 1 is a rectangle, while in other embodiments, the shape of the base plate 1 is not necessarily a regular pattern, and the shape of the base plate 1 is determined according to the distribution of the welding points of the welding product; the shape of the cover plate 3 is not restricted by the bottom plate 1, but it is necessary to ensure that the positioning hole 71 corresponds to the first heat conduction hole 6.
In one embodiment, the diameter of the positioning hole 71 is larger than the diameter of the second heat conduction hole 72, the second positioning hole 71 is used for installing the pressure spring 5, one end of the pressure spring 5 is assembled in the positioning hole 71, the reaction force applied by the pressure spring 5 to the product to be tested in the welding process can enable stress of each welding point to be consistent, and the second heat conduction hole 72 can reduce extra heat absorption of the cover plate 3 in the welding process, heat conduction efficiency and improve welding quality. In the present embodiment, the sum of the depths of the positioning hole 71 and the second heat conduction hole 72 is equal to the thickness of the cover plate 3, and the axes of the positioning hole 71 and the second heat conduction hole 72 coincide.
In a specific embodiment, the welding tool provided by this embodiment further includes a pressure head 8, one side end surface of the pressure head 8 contacts with a product to be welded, and one side end surface opposite to the contact surface is fixedly connected to the pressure spring 5, and in the working process, by adjusting the distance between the bottom plate 1 and the cover plate 3 to apply pressure to the pressure spring 5, the elastic force generated by compression of the pressure spring 5 counteracts the pressure head 8 and is transmitted to the product to be welded through the pressure head 8, so as to apply a certain pressure to the product to be welded.
In one embodiment, the bottom plate 1 is further provided with heat conducting through holes 9 located between the first heat conducting holes 6, the positions of the heat conducting through holes 9 on the bottom plate 1 are determined according to the shapes of products to be welded, the heat conducting through holes 9 penetrate through two surfaces of the bottom plate 1, and the hole diameters of the heat conducting through holes 9 are smaller than those of the first heat conducting holes 6. The arrangement of the heat conduction through holes 9 can further reduce extra heat absorption, increase heat conduction efficiency and improve welding quality. In this embodiment, the number of the first heat conduction holes 6 is nine, the number of the introduction through holes 9 is sixteen, and the specific number of the first heat conduction holes 6 and the heat conduction through holes 9 is not particularly limited in the present invention, so that the heat absorption efficiency of the welding spot is ensured.
In a specific embodiment, two opposite sides of the bottom plate 1 are respectively fixedly combined with a bracket 2, the bracket 2 is used for connecting the bottom plate 1 and the cover plate 3, the cover plate 3 is provided with a bracket mounting hole 20 correspondingly matched with the bracket 2, one end of the bracket 2 far away from the bottom plate 1 is mounted in the bracket mounting hole 20, and the cover plate 3 can move along the bracket 2 to approach or depart from the bottom plate 1. The pressure spring 5 is fixed between the cover plate 3 and the bottom plate 1 by adjusting the relative position between the cover plate 3 and the bottom plate 1.
In a specific example, the side surface of the bracket 2 includes a plurality of threaded holes 21 arranged along the axial direction of the first through hole 6, the side walls of the two side portions of the cover plate 3 provided with the bracket mounting holes 20 are provided with fixing holes 210 arranged to match with the threaded holes 21, the cover plate 3 can move along the bracket 2 so as to adjust the relative position with the base plate 1, and when the proper position is adjusted, the bracket 2 and the cover plate 3 can be fixed by screws.
In one embodiment, threaded through holes 40 are processed at two ends of the cross bar 4, a cross bar mounting hole 30 which is matched with the threaded through holes 40 correspondingly is arranged on the cover plate 3, the cross bar 4 is mounted on one side, away from the cover plate 3, of the bottom plate 1 and connected with the cover plate 3 through bolts, the compression amount of the pressure spring 5 can be changed by adjusting the relative distance between the cross bar 4 and the cover plate 3, and therefore the pressure of a welding spot of a product to be measured is applied by the pressure head 8. The transverse strips 4 are used for replacing a base to bear products needing to be welded, the number of the transverse strips 4 is not limited, and the products needing to be welded can be stably borne only by ensuring. The design that the transverse strips 4 are adopted to replace the base can reduce extra heat absorption, increase the efficiency of heat conduction and improve the welding quality, and under the condition that the stable bearing of a product to be welded is ensured, the smaller the number of the transverse strips 4 is, the better the welding quality is.
In a specific embodiment, in order to increase the efficiency of heat conduction and improve the welding quality, the bottom plate 1, the cover plate 3 and the cross bars 4 are made of materials with good heat conductivity, such as aluminum, aluminum alloy, copper-aluminum alloy or graphite.
An embodiment of the present invention further provides a welding method using the welding tool in the above embodiment, specifically, the welding method includes the following steps:
s1, placing a product to be welded between the cover plate 3 and the bottom plate 1, namely, on the side plate surface of the bottom plate 1 close to the cover plate 3;
s2, the cover plate 3 moves along the bracket 2, and the relative distance between the bottom plate 1 and the cover plate 3 is adjusted to enable the bottom surface of the pressure head 8 to be in contact with a product to be welded;
s3, fixing the horizontal bar 5 and the cover plate 3;
s4, adjusting the position between the cross bar 5 and the cover plate 3 to ensure that the pressure head 8 applies the pressure required by welding to the product to be welded;
and S5, putting the products to be welded together with the welding tool into welding equipment for gas phase reflow soldering.
It should be understood that the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and it will be obvious to those skilled in the art that other variations or modifications may be made on the basis of the above description, and all embodiments may not be exhaustive, and all obvious variations or modifications may be included within the scope of the present invention.

Claims (8)

1. The utility model provides a welding frock of gas phase reflow soldering which characterized in that, welding frock includes:
a base plate;
the cover plate is assembled at a position above the bottom plate through a bracket;
the transverse strip is assembled on the plate surface of one side, far away from the cover plate, of the bottom plate;
the pressure spring is positioned between the bottom plate and the cover plate; and
the pressure head is connected and fixed at one end of the pressure spring, which is far away from the cover plate;
the bottom plate comprises first heat conduction holes penetrating through the surfaces of the two sides of the bottom plate; the cover plate comprises a through hole which is corresponding to the first heat conduction hole and penetrates through the surfaces of the two sides of the cover plate;
the through-hole includes:
a positioning hole located at one side close to the bottom plate; and
a second heat conduction hole located on a side facing away from the base plate;
one end of the pressure spring, which is far away from the pressure head, is assembled in the positioning hole.
2. The welding tool according to claim 1, wherein the diameter of the positioning hole is larger than that of the second heat-conducting hole;
the sum of the depths of the positioning hole and the second heat conduction hole is equal to the thickness of the cover plate.
3. The welding tool according to claim 1, wherein the bottom plate further comprises heat conducting through holes positioned between the first heat conducting holes, and the heat conducting through holes penetrate through the two side surfaces of the bottom plate;
the aperture of the heat conduction through hole is smaller than that of the first heat conduction hole.
4. The welding tool according to claim 1, wherein two brackets are fixedly combined on the bottom plate and positioned on two opposite side sides of the bottom plate;
the cover plate comprises a bracket mounting hole correspondingly matched with the bracket.
5. The welding tool according to claim 1, wherein the side face of the bracket comprises a plurality of threaded holes arranged along the axial direction of the first heat-conducting hole;
the side wall of the cover plate comprises a fixing hole matched with the threaded hole;
the cover plate is configured to be movable along the bracket to adjust a relative position with respect to the base plate.
6. The welding tool according to claim 1, wherein threaded through holes are machined in two ends of the cross bar;
the cover plate comprises a cross bar mounting hole correspondingly matched with the threaded through hole.
7. The welding tool of claim 1, wherein the bottom plate, the cover plate and the cross bars are made of aluminum, aluminum alloy, copper aluminum alloy or graphite.
8. A welding method using the welding tool of any one of claims 1-7, comprising the steps of:
1) placing a product to be welded between the cover plate and the base plate;
2) adjusting the distance between the bottom plate and the cover plate to enable the pressure head to contact a product to be welded;
3) fixing the cross bars with the cover plate;
4) adjusting the position relation between the cross bar and the cover plate to enable the pressure head to apply pressure to the product to be welded;
5) and putting the product to be welded and the tool into equipment for gas phase reflow soldering.
CN202110676311.XA 2021-06-18 2021-06-18 Welding tool and method for gas phase reflow soldering Pending CN113547183A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110676311.XA CN113547183A (en) 2021-06-18 2021-06-18 Welding tool and method for gas phase reflow soldering

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110676311.XA CN113547183A (en) 2021-06-18 2021-06-18 Welding tool and method for gas phase reflow soldering

Publications (1)

Publication Number Publication Date
CN113547183A true CN113547183A (en) 2021-10-26

Family

ID=78130682

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110676311.XA Pending CN113547183A (en) 2021-06-18 2021-06-18 Welding tool and method for gas phase reflow soldering

Country Status (1)

Country Link
CN (1) CN113547183A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114473345A (en) * 2022-03-15 2022-05-13 中国电子科技集团公司第三十八研究所 Visual elastic welding frock of high rigidity

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1330883A (en) * 1969-09-22 1973-09-19 Chausson Usines Sa Brazing jigs for supporting radiators to be brazed in furnaces
CN102173849A (en) * 2011-02-18 2011-09-07 成都泰格微波技术股份有限公司 Reliable welding method of microwave medium ceramic and metal
CN202963833U (en) * 2012-10-19 2013-06-05 上海鹰峰电子科技有限公司 Vacuum brazing tool for water-cooled plate
CN104002005A (en) * 2014-06-16 2014-08-27 贵州永红航空机械有限责任公司 Vacuum brazing and heat treatment integrated process of aluminium alloy gas circuit board
CN207139065U (en) * 2017-08-25 2018-03-27 浙江力庆制冷设备有限公司 A kind of pipe fitting soldering positioning tool
CN208556258U (en) * 2018-08-02 2019-03-01 深圳市中诺通电子有限公司 A kind of FPCA crosses furnace special fixture
CN109570867A (en) * 2018-12-10 2019-04-05 安徽华东光电技术研究所有限公司 For improving the welding tooling and its welding method of large-area substrates welding penetration rate
CN109794675A (en) * 2019-03-05 2019-05-24 成都雷电微力科技有限公司 A kind of welding tooling and welding method for the high sial encapsulating housing of airproof
CN110640256A (en) * 2019-11-05 2020-01-03 北京北广科技股份有限公司 Automatic adjust welding frock
CN110933878A (en) * 2019-12-07 2020-03-27 朝阳聚声泰(信丰)科技有限公司 Spring type backflow pressing jig
CN111633296A (en) * 2020-06-10 2020-09-08 福建火炬电子科技股份有限公司 Non-encapsulation metal bracket welding jig and welding method thereof

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1330883A (en) * 1969-09-22 1973-09-19 Chausson Usines Sa Brazing jigs for supporting radiators to be brazed in furnaces
CN102173849A (en) * 2011-02-18 2011-09-07 成都泰格微波技术股份有限公司 Reliable welding method of microwave medium ceramic and metal
CN202963833U (en) * 2012-10-19 2013-06-05 上海鹰峰电子科技有限公司 Vacuum brazing tool for water-cooled plate
CN104002005A (en) * 2014-06-16 2014-08-27 贵州永红航空机械有限责任公司 Vacuum brazing and heat treatment integrated process of aluminium alloy gas circuit board
CN207139065U (en) * 2017-08-25 2018-03-27 浙江力庆制冷设备有限公司 A kind of pipe fitting soldering positioning tool
CN208556258U (en) * 2018-08-02 2019-03-01 深圳市中诺通电子有限公司 A kind of FPCA crosses furnace special fixture
CN109570867A (en) * 2018-12-10 2019-04-05 安徽华东光电技术研究所有限公司 For improving the welding tooling and its welding method of large-area substrates welding penetration rate
CN109794675A (en) * 2019-03-05 2019-05-24 成都雷电微力科技有限公司 A kind of welding tooling and welding method for the high sial encapsulating housing of airproof
CN110640256A (en) * 2019-11-05 2020-01-03 北京北广科技股份有限公司 Automatic adjust welding frock
CN110933878A (en) * 2019-12-07 2020-03-27 朝阳聚声泰(信丰)科技有限公司 Spring type backflow pressing jig
CN111633296A (en) * 2020-06-10 2020-09-08 福建火炬电子科技股份有限公司 Non-encapsulation metal bracket welding jig and welding method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114473345A (en) * 2022-03-15 2022-05-13 中国电子科技集团公司第三十八研究所 Visual elastic welding frock of high rigidity

Similar Documents

Publication Publication Date Title
US20090314471A1 (en) Heat pipe type heat sink and method of manufacturing the same
WO2003028423A1 (en) Method for manufacturing a heat sink
US4412123A (en) Laminated electric heat generating member for reflow soldering devices
CN113547183A (en) Welding tool and method for gas phase reflow soldering
US6276593B1 (en) Apparatus and method for solder attachment of high powered transistors to base heatsink
CN212945939U (en) Novel clamp for vacuum brazing
JP2005144523A (en) Restraint tool by gas pressure and soldering method using the restraint tool
CN103069930B (en) For giving the method for the multiple component of circuit board arrangement and the circuit with circuit board and assembling multiple components on circuit boards
CN218533117U (en) Welding fixture
CN115401352B (en) Welding method
CN217363614U (en) Heat radiation unit for radiator
CN107745166B (en) Welding method for phased array active antenna array surface multilayer copper-clad substrate
CN102646607A (en) Technology method of parallel seam welding of MMW (Millimeter Waves) T/R assembly high conduction material
CN214024050U (en) Hot-pressing welding head
CN214558230U (en) Connecting sheet welding jig
CN112259532B (en) Microwave millimeter wave packaging device and manufacturing method thereof
CN114850811A (en) Method for processing radiator
CN214537539U (en) Temperature equalization plate and electronic product
CN100515168C (en) Heating device assembling system, device and communication equipment
CN114571021A (en) Manufacturing method of high-thermal-conductivity copper-clad ceramic substrate
CN217618734U (en) Thermoelectric refrigeration piece welding jig
CN221210181U (en) Porous small plate structure IGBT vacuum reflow jig
CN214378378U (en) Welding tool for surface mount diode
CN220545221U (en) Heat-proof tool fixture for circuit board
CN206373555U (en) A kind of Cu-Al connecting pipe welding machine frock

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
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20211026