CN105312704B - For the gravity flow soldering method and system of laser welding - Google Patents
For the gravity flow soldering method and system of laser welding Download PDFInfo
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- CN105312704B CN105312704B CN201510753822.1A CN201510753822A CN105312704B CN 105312704 B CN105312704 B CN 105312704B CN 201510753822 A CN201510753822 A CN 201510753822A CN 105312704 B CN105312704 B CN 105312704B
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- tin
- gravity flow
- liquid phase
- feeding tube
- flow soldering
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- 238000003466 welding Methods 0.000 title claims abstract description 42
- 238000005476 soldering Methods 0.000 title claims abstract description 35
- 230000005484 gravity Effects 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 18
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 132
- 239000007791 liquid phase Substances 0.000 claims abstract description 34
- 239000007790 solid phase Substances 0.000 claims abstract description 26
- 230000008595 infiltration Effects 0.000 claims abstract 2
- 238000001764 infiltration Methods 0.000 claims abstract 2
- 229910000679 solder Inorganic materials 0.000 claims description 29
- 238000010438 heat treatment Methods 0.000 claims description 7
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 125000006850 spacer group Chemical group 0.000 claims description 4
- 238000003860 storage Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 5
- 206010068052 Mosaicism Diseases 0.000 abstract 1
- 210000003765 sex chromosome Anatomy 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 20
- 229910052742 iron Inorganic materials 0.000 description 9
- 239000006071 cream Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000012535 impurity Substances 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
- 206010054949 Metaplasia Diseases 0.000 description 1
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000015689 metaplastic ossification Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
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
- B23K1/005—Soldering by means of radiant energy
- B23K1/0056—Soldering by means of radiant energy soldering by means of beams, e.g. lasers, E.B.
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Media Introduction/Drainage Providing Device (AREA)
- Electric Connection Of Electric Components To Printed Circuits (AREA)
Abstract
The present invention relates to a kind of gravity flow soldering methods and system for laser welding, are related to Automatic laser welding technology field.A kind of gravity flow soldering method for laser welding stores after solid phase tin is transformed into liquid phase tin by electrically heated mode, and is maintained at liquid phase state；After liquid phase tin is flow on pad, laser butt welding point is recycled to be heated, make the good profit of invading of tin on pad.The present invention uses " tin of liquid phase state " to be combined with " laser irradiation ", efficiently solves infiltration sex chromosome mosaicism of the tin on cold conditions pad.
Description
Technical field
The present invention relates to Automatic laser welding technology fields, and in particular to a kind of gravity flow soldering for laser welding
Method and system.
Background technology
In process of manufacture, most common solder welding method is soldering iron weldering and laser reflow weldering.
Soldering iron weldering is electric iron generally using instrument, it is to be heated to weld jointly by weldment and the fusing point solder lower than weldment
Expect fusing point, infusible in weldment, solder fusing simultaneously infiltrates the connection that diffuses to form weldment of the welding surface by the two.
Its main feature has following three points：A. solder melt point is less than weldment fusing point；Weldment and solder are heated to solder jointly when b. welding
Fusing point, solder fusing and weldment is non-fusible；C. the formation of solder joint is made by the wetting welding surface of molten state by capillary
With the gap that solder is made to enter weldment, a binder course is formed, so as to fulfill the combination of weldment.During using electric iron, pass through electricity
Source line will exchange and be electrically added the both ends of iron core, and iron core is a kind of heating resistance wire, it is converted electric energy into as thermal energy, then is led to
It crosses heat transfer to deliver thermal energy on solder horn, solder horn is heated, and the lead that the solder horn of heat is leaned against to pad and component connects
It meets place, heats two weldments, after two weldment welding surfaces are heated to certain temperature, by solder stick from solder horn opposite Contact welding
Part after solder stick has melted a certain amount, removes solder stick, and the welding portion of scolding tin wettable pads and weldment is removed later
Electric iron, at this time welding are completed, and are specifically shown in Fig. 1, the title of each part is respectively in figure：1. the lead of component；2. pad；3. weldering
Tin silk；4. electric iron.
Laser reflow welding technology, it is a kind of supplement to Reflow Soldering mode, is to be expressed to tin cream on pad with syringe,
Then using laser beam direct irradiation welding position and generating heat melts tin cream, and form solder joint.This technology is applicable in
In：A. easy heat damage or component easy to crack in other welding；B. can be removed on the intensive circuit of component some
Circuit line or some elements of addition, without being heated to whole circuit board；Whole circuit board is not subject to thermal stress when c. welding,
It will not make circuit slab warping；D. weld interval is short, is not easy to form thicker Intermetallic compound layer.
Above two welding method there are the problem of：1. problem present in soldering iron weldering has：If a. maintenance is improper, soldering iron
Head easily corrosion, causes solder horn to eat tin difficulty；B. rosin or faintly acid scaling powder must be used；C. pure manual welding, production
Efficiency is low.2. laser reflow weldering there are the problem of have：A. preservation condition requirement is stringent, and the shelf-life is short, need to take care of at 5-10 DEG C
Under environment, service life is 6 months under conditions of not breaking a seal, and being sealed under room temperature can only preserve 1 month；B. application method
It is comparatively laborious, it needs at normal temperatures tin cream to be made to be restored to room temperature before Kaifeng, it is time-consuming longer, it needs to stir evenly after rising again；When c. using
Tin cream need to be extruded on pad with syringe, since tin cream contains a certain amount of scaling powder, solder joint easily collapses, and welding quality becomes
Difference；D. the scaling powder composition in tin cream is more, and when reflux easily forms bubble and causes solder joint expansion explosion that tin cream is made to splash, and falls in member
Part surface forms unnecessary solder joint.
The content of the invention
The defects of purpose of the present invention is aiming at the prior art provides a kind of gravity flow soldering side for laser welding
Method and system.So as to effectively improve the efficiency and quality of the production of Laser industry metaplasia.
The technical solution adopted by the present invention is：A kind of gravity flow soldering method for laser welding passes through solid phase tin
Electrically heated mode stores after being transformed into liquid phase tin, and is maintained at liquid phase state；After liquid phase tin is flow on pad, due to pad
It is that cold liquid phase tin becomes solid phase solder joint, laser butt welding point is recycled to be heated, makes the good profit of invading of tin on pad.
When conveying liquid phase state tin, the flow of tin under liquid phase state is controlled by control pressure.
A kind of gravity flow soldering system for laser welding, including
Focus head, the focus head heat for laser to be focused on solder joint；
Gravity flow soldering device, the gravity flow soldering device are used to solid phase tin being transformed into the storage of liquid phase tin and flow to pad certainly
On.
Further preferred structure, the gravity flow soldering device include tin feeding tube stent, on tin feeding tube stent
Tin feeding tube body, the electric appliance heating system being wrapped on tin feeding tube body.
Further preferred structure, the tin feeding tube stent include bottom plate and the gusset plate do not closed, the tin feeding tube body
It is fixedly connected through bottom plate with bottom plate, be arranged with nut at the top of the tin feeding tube body is connected with jacking of floor.Ensure heated
Tin feeding tube body is notheated the effect for shrinkage of rising and becomes Panasonic and fall in journey.
Further preferred structure, the tin feeding tube body are equipped with radiator structure with back plate connections, and the radiator structure is
The heat emission hole that place opens up is connected on bottom plate with tin feeding tube body, the heat emission hole is evenly arranged along tin feeding tube body border.It is similar to
The welding structure of point contact effectively reduces the heat that tin feeding tube body is transmitted to tin feeding tube stent, can both ensure that heat leaks
The phenomenon that waste, it is also ensured that tin feeding tube stent overheat happens.
Further preferred structure, the tin feeding tube body include the solid phase tin-tube on top, the tin storing tube of lower part and bottom
Tin is sent to bore, the solid phase tin-tube bottom at the top of tin storing tube with being connected, and the tin storing tube bottom is with sending tin cone top part to be connected, institute
It states and temperature thermocouple is additionally provided in tin storing tube.
Further preferred structure, it is described that tin cone is sent to include sending tin cone and being arranged at tin is sent to bore in vivo filter screen.
Further preferred structure, the filter screen include two layers, and between be equipped with spacer ring, the online portion of upper level filter is equipped with
Trim ring.Two layers of filter screen for having many pores is separated with filter screen spacer ring, then with filter screen trim ring compression it is made not loosen,
For filtering the impurity in liquid phase state tin, so as to effectively prevent impurity blocking from sending the aperture of tin cone lower end, wherein tin is sent to bore
Body is connected by screw thread with tin storing tube, can periodically be split and be removed impurity therein.
Further preferred structure, the upper end of the solid phase tin-tube are provided with helicitic texture.
Further preferred structure, the helicitic texture are connected with funnel structure.Solid phase tin ball is sent into from funnel structure, then
Tin storing tube is delivered by straight tube structure, fill screw off portion after tin storing tube tin is sent to bore.
Further preferred structure, the helicitic texture are connected with the quick coupling that can insert tracheae.It can will can insert tracheae
Quick coupling screw-in is connected on helicitic texture, and the tin of liquid phase state in tin storing tube is applied by tracheae when conveying liquid phase state tin
Add certain positive pressure or negative pressure, so as to effectively control the flow of tin under liquid phase state, make to flow to the tin amount on pad and reach regulation
It is required that amount.
The invention has the advantages that：Manufacture at low cost, the machining accuracy of parts is easily guaranteed that, due to not holding extremely
Yielding sheet parts, but processing request is not high and is easily guaranteed that processing and welding are employed, this will be to entire mechanism
Function is effectively realized and is very helpful；It can make " tin is continuously maintained in liquid phase state ", this is that existing welding structure cannot
Enough reach；It can monitor in real time and control in tin storing tube the temperature of " tin of liquid phase state ", so as to be adjusted in real time, reach
Good control effect；Filter screen structure is equipped in mechanism, can effective impurity screening, and can periodically clear up, avoid
The problem of blocking；Any scaling powder need not be added in welding process, solder joint in laser reflow weldering is avoided and easily collapses and splash
The problem of；Solder is additionally required the item of attention in addition to keeping cleaning without other, and application method is simple, solder long shelf-life；
For whole device without special maintenance, there is no etching problems, and production efficiency is greatly improved with reference to laser irradiation techniques.
Description of the drawings
Fig. 1 is the welding method schematic diagram of existing soldering iron weldering；
Fig. 2 is the gravity flow soldering method schematic diagram that the present invention is used for laser welding；
Fig. 3 is gravity flow soldering device structure diagram of the present invention；
Fig. 4 is gravity flow soldering device top view of the present invention；
Fig. 5 is gravity flow soldering device sectional view along A-A of the present invention；
Fig. 6 is solid phase tin-tube diagrammatic cross-section of the present invention；
Fig. 7 is solid phase tin-tube of the present invention and funnel structure connection diagram；
Fig. 8 is solid phase tin-tube of the present invention and quick coupling connection diagram；
Fig. 9 is that the present invention send tin to bore diagrammatic cross-section.
In figure：1-tin feeding tube stent (1-1-bottom plate, 1-2-gusset plate, 1-3-radiator structure), 2-tin feeding tube body
(2-1-solid phase tin-tube, 2-1-1-helicitic texture, 2-1-2-funnel structure, 2-1-3-quick coupling, 2-2-nut, 2-
3-tin storing tube, 2-4-tin is sent to bore, 2-4-1-send tin cone, 2-4-2-filter screen, 2-4-3-spacer ring, 2-4-4-trim ring,
2-5-temperature thermocouple), 3-electric appliance heating system, the 4-the second balsaming lens, the 5-the first balsaming lens, 6-fibre-optical splice.
Specific embodiment
The present invention is described in further detail in the following with reference to the drawings and specific embodiments, convenient for this hair is well understood
It is bright, but they do not form the present invention and limit.
A kind of gravity flow soldering method for laser welding of the invention, solid phase tin is transformed by electrically heated mode
It is stored after liquid phase tin, and is maintained at liquid phase state；After liquid phase tin is flow on pad, since pad is that cold liquid phase tin becomes solid
Phase solder joint recycles laser butt welding point to be heated at this time, makes the good profit of invading of tin on pad.
When conveying liquid phase state tin, the flow of tin under liquid phase state is controlled by control pressure.
A kind of gravity flow soldering system for laser welding, including
Focus head, focus head heat for laser to be focused on solder joint；
Gravity flow soldering device, gravity flow soldering device are used to solid phase tin being transformed into the storage of liquid phase tin and from flowing to pad.
As shown in Fig. 2, gravity flow soldering device include tin feeding tube stent 1, the tin feeding tube body 2 on tin feeding tube stent 1,
The electric appliance heating system 3 being wrapped on tin feeding tube body 2.Focus head includes being arranged at the fibre-optical splice 6 at top, is arranged inside
First balsaming lens 5 and the second balsaming lens 4.The invention is not restricted to the focusing of two panels balsaming lens.
As shown in figure 3, tin feeding tube stent 1 includes bottom plate 1-1 and the gusset plate 1-2 not closed, tin feeding tube body 2 passes through bottom plate
1-1 is fixedly connected with bottom plate 1-1.2 top of tin feeding tube body is arranged with nut 2-2 and bottom plate 1-1 and reinforces connection.
As shown in figure 4, tin feeding tube body 2 is equipped with radiator structure 1-3 with bottom plate 1-1 junctions.Radiator structure 1-3 is bottom plate 1-
The heat emission hole that place opens up is connected on 1 with tin feeding tube body 2, heat emission hole is evenly arranged along 2 border of tin feeding tube body.
As shown in figure 5, tin is sent in the solid phase tin-tube 2-1 of tin feeding tube body 2 including top, the tin storing tube 2-3 of lower part and bottom
2-4 is bored, with being connected at the top of tin storing tube 2-3, tin storing tube 2-3 bottoms are connected with sending at the top of tin cone 2-4 for solid phase tin-tube 2-1 bottoms
It is logical, temperature thermocouple 2-5 is additionally provided in tin storing tube 2-3.
As shown in Fig. 6-Fig. 8, the upper end of solid phase tin-tube 2-1 is provided with helicitic texture 2-1-1.Helicitic texture 2-1-1 connections
There is funnel structure 2-1-2.Helicitic texture 2-1-1 can also be connected with the quick coupling 2-1-3 that can insert tracheae.
As shown in figure 9, tin cone 2-4 is sent to include sending tin cone 2-4-1 and be arranged at the filter screen 2- sent in tin cone 2-4-1
4-2.Filter screen 2-4-2 include two layers, and between be equipped with spacer ring 2-4-3, upper level filter net 2-4-2 tops be equipped with trim ring 2-4-4,
Filter screen 2-4-2 is steel mesh.
Operation principle of the present invention：Solid phase tin ball warp is sent to by the solid phase tin-tube on tin feeding tube body in tin storing tube, through electric appliance
Heating system heats are always held at liquid phase state to being melted into the tin of liquid phase state after certain temperature, and temperature passes through
Temperature thermocouple is monitored in real time, is then placed on the pad of focus head focus via tin coning tower tray is sent to go out and be sent to；Laser passes through
Fibre-optical splice, which enters after focus head, to carry out first time focusing by the first balsaming lens, by the second balsaming lens for the second time gather again
It is defocused to gather focus, wherein the laser dissipated after fibre-optical splice enters focus head, is gathered by the first time of the first balsaming lens
Coke becomes directional light, and directional light gathers focus by the focussing force of the second balsaming lens again.The tin of liquid phase state is by sending
After being sent to after the outflow of tin cone on pad, since pad is cold, the tin moment of liquid phase state becomes solid phase, and effect of impregnation is not
It is good, it at this time with the use of focus head, is irradiated using laser, pad temperature is made to increase, tin good can be infiltrated on pad.
The above description is merely a specific embodiment, but protection scope of the present invention is not limited thereto, any
Belong to those skilled in the art in the technical scope disclosed by the present invention, the change or replacement that can be readily occurred in all should
It is included within the scope of the present invention.Therefore, protection scope of the present invention should be subject to the protection scope in claims.
Claims (4)
1. a kind of gravity flow soldering system for laser welding, it is characterised in that：Including focus head, the focus head is used for will
Laser is focused on solder joint and heated；
Gravity flow soldering device, the gravity flow soldering device are used to solid phase tin being transformed into the storage of liquid phase tin and from flowing to pad；
The gravity flow soldering device includes tin feeding tube stent (1), the tin feeding tube body (2) on tin feeding tube stent (1), is wrapped in and send
Electric appliance heating system (3) on tin-tube body (2)；
The tin feeding tube stent (1) includes bottom plate (1-1) and the gusset plate (1-2) do not closed, and the tin feeding tube body (2) passes through bottom
Plate (1-1) is fixedly connected with bottom plate (1-1), and nut (2-2) is arranged at the top of the tin feeding tube body (2) and is reinforced with bottom plate (1-1)
Connection；
The tin feeding tube body (2) is equipped with radiator structure (1-3) with bottom plate (1-1) junction, and the radiator structure (1-3) is bottom plate
The heat emission hole that place opens up is connected on (1-1) with tin feeding tube body (2), the heat emission hole is evenly arranged along tin feeding tube body (2) border；
Tin cone (2- is sent in the solid phase tin-tube (2-1) of the tin feeding tube body (2) including top, the tin storing tube (2-3) of lower part and bottom
4), solid phase tin-tube (2-1) bottom at the top of tin storing tube (2-3) with being connected, and tin storing tube (2-3) bottom is with sending tin to bore
It is connected at the top of (2-4), temperature thermocouple (2-5) is additionally provided in the tin storing tube (2-3)；
The gravity flow soldering method of the gravity flow soldering system for laser welding, including：Solid phase tin is passed through into electrical heating
Mode be transformed into liquid phase tin after store, and be maintained at liquid phase state；After liquid phase tin is flow on pad, laser butt welding is recycled
Point is heated, and makes the good infiltration of tin on pad；
When conveying liquid phase state tin, the flow of tin under liquid phase state is controlled by control pressure.
2. the gravity flow soldering system according to claim 1 for laser welding, it is characterised in that：It is described that tin is sent to bore
(2-4) includes sending tin cone (2-4-1) and is arranged at the filter screen (2-4-2) sent in tin cone (2-4-1).
3. the gravity flow soldering system according to claim 2 for laser welding, it is characterised in that：The filter screen
(2-4-2) include two layers, and between be equipped with spacer ring (2-4-3), upper level filter net (2-4-2) top be equipped with trim ring (2-4-4).
4. the gravity flow soldering system according to claim 1 for laser welding, it is characterised in that：The solid phase tin-tube
The upper end of (2-1) is provided with helicitic texture (2-1-1), and the helicitic texture (2-1-1) is connected with funnel device (2-1-2) or can
Insert the quick coupling (2-1-3) of tracheae.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510753822.1A CN105312704B (en) | 2015-11-05 | 2015-11-05 | For the gravity flow soldering method and system of laser welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510753822.1A CN105312704B (en) | 2015-11-05 | 2015-11-05 | For the gravity flow soldering method and system of laser welding |
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| Publication Number | Publication Date |
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| CN105312704A CN105312704A (en) | 2016-02-10 |
| CN105312704B true CN105312704B (en) | 2018-06-05 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108098251B (en) * | 2017-12-20 | 2019-04-16 | 重庆洛昂机械有限公司 | Method for maintaining for safety-valve |
| CN108803449B (en) * | 2018-05-10 | 2022-01-04 | Tcl王牌电器(惠州)有限公司 | Device and method for monitoring defective rate of welding inspection |
| CN117715404B (en) * | 2024-02-06 | 2024-05-14 | 深圳维盛半导体科技有限公司 | Packaging chip pin tin bridge processing equipment |
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| US5193738A (en) * | 1992-09-18 | 1993-03-16 | Microfab Technologies, Inc. | Methods and apparatus for soldering without using flux |
| DE10113471B4 (en) * | 2001-03-19 | 2005-02-17 | Highyag Lasertechnologie Gmbh | Method for hybrid welding by means of a laser double focus |
| KR20070030214A (en) * | 2004-06-01 | 2007-03-15 | 소우텍 소우드로닉 아게 | Hard-soldering method and device |
| CN101934407A (en) * | 2010-09-21 | 2011-01-05 | 哈尔滨工业大学 | Current-assisted laser brazing method or laser fusion brazing method |
| US20140093658A1 (en) * | 2012-09-28 | 2014-04-03 | General Electric Company | Methods and systems for joining materials |
| CN104439587B (en) * | 2014-07-25 | 2016-05-25 | 乐辉 | A kind of method for laser welding |
| CN104400168B (en) * | 2014-10-17 | 2017-12-19 | 武汉凌云光电科技有限责任公司 | A kind of automatic tin-feeding method for laser welding |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2865966Y (en) * | 2005-06-20 | 2007-02-07 | 田耀坤 | Hand brazing welding gun |
| CN101745711A (en) * | 2009-12-18 | 2010-06-23 | 深圳市大族激光科技股份有限公司 | Laser soldering method |
| CN101837496A (en) * | 2010-04-23 | 2010-09-22 | 张大理 | Automatic tin supplying electric iron |
| CN202377634U (en) * | 2010-08-12 | 2012-08-15 | 赵一帆 | Injection-type soldering iron tip used for supplying tin |
| CN202963714U (en) * | 2012-12-11 | 2013-06-05 | 周甫 | Multifunctional electric soldering iron |
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| CN105312704A (en) | 2016-02-10 |
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