CN106735711B - Help weldering aerosol producer, welding production line and processing technology comprising the generator - Google Patents
Help weldering aerosol producer, welding production line and processing technology comprising the generator Download PDFInfo
- Publication number
- CN106735711B CN106735711B CN201710081086.9A CN201710081086A CN106735711B CN 106735711 B CN106735711 B CN 106735711B CN 201710081086 A CN201710081086 A CN 201710081086A CN 106735711 B CN106735711 B CN 106735711B
- Authority
- CN
- China
- Prior art keywords
- scaling powder
- welding
- production line
- atomizer
- processing technology
- 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.)
- Expired - Fee Related
Links
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
- 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
- B23K3/082—Flux dispensers; Apparatus for applying flux
-
- 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
-
- 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
- B23K3/04—Heating appliances
-
- 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/36—Electric or electronic devices
- B23K2101/40—Semiconductor devices
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electric Connection Of Electric Components To Printed Circuits (AREA)
Abstract
Help weldering aerosol producer, welding production line and processing technology comprising the generator.It provides a kind of help and welds aerosol producer, welding production line and processing technology comprising the generator.Weldering aerosol producer, including sequentially connected gas source, liquid scaling powder tank, atomizer and heating device are helped, the heating device includes shell and is located at the intracorporal heat source of shell, and it is inside that the atomizer is located at the top of the shell and outlet.Gas source takes liquid scaling powder out of liquid tank in the present invention; it is fog-like after atomizer to be sprayed onto heating cabinet; it is heated by heating tube; misty scaling powder is set to become smoke-like; smoke flow is big, particle is small; convenience contacts sufficiently and uniformly with solder; it is considerably less in device surface residual after welding; substantially it can be ignored (≤1 ‰); the secondary pollution of subsequent cleaning process and cleaning process to product in traditional technology is eliminated, production cost is reduced, improves yield rate; and without discharging of waste liquid, protect environment.
Description
Technical field
The present invention relates to semiconductor components and devices processing technique fields, and in particular to one kind helps weldering aerosol producer, comprising being somebody's turn to do
The welding production line and processing technology of generator.
Background technique
In the welding process of electronic component, the plate weldering of the continuous tunnel furnace or contact heating of radiant heating is generallyd use
Connect equipment.Majority is helped using the rosin resin system of the activating agent containing halide, additive and organic solvent composition when welding
The liquid scaling powder of solder flux helps solder(ing) paste, and liquid scaling powder or tin cream are directly contacted with chip, passes through the high temperature of welding surroundings
(radiant heating of tunnel welding furnace or the contact heating of plate welding furnace) completes welding.Although this kind of scaling powder solderability
It is good, it is low in cost, but impurity residual up to 2% ~ 4% or so, especially the halide ion inside residue, which becomes, influences electronics member
An important factor for device reliability, often will be reached removal using chemical solvent cleaning and be welded by dedicated cleaning equipment
The impurity residual that journey generates can also generate electronic component itself other than increasing production cost, generation environment pollution factor
Uncontrollable secondary pollution and injury.And the no-clean scaling powder of import low-residual is used, formation is influenced by technical barrier
High cost also limits use.And the no-clean scaling powder of so-called low-residual, only reach relatively low welding residual, through surveying
There is still the die sites that about 5 ‰ residue is attached to device, becoming influences packaging air tightness and electrical reliability for examination
Medium.
Summary of the invention
The present invention welds aerosol producer, the welding production line comprising the generator in view of the above problems, providing a kind of help
And processing technology.The scaling powder of liquid is converted into smog and is output to welding equipment, formation helps weldering atmosphere, instead of helping for contact
Solder flux technique achievees the purpose that free of cleaning.
The technical scheme is that helping weldering aerosol producer, including sequentially connected gas source, liquid scaling powder tank, mist
Change spray head and heating device, the heating device includes shell and is located at the intracorporal heat source of shell, and the atomizer is located at described
The top and outlet of shell are inside.
The heat source is heating tube, and the heating tube is placed in below atomizer.
The gas source is nitrogen.
It further include below the shell for being located at the heating device comprising the welding production line for helping weldering aerosol producer
Soldering furnace and pass through welding furnace bottom, horizontally disposed conveyer belt, the soldering furnace is connected by pipeline and the heating device
It is logical.
The pipeline extends to the bottom of soldering furnace, and tube wall is equipped with aperture.
The conveyer belt is equipped with several baffles one, on the side wall of the soldering furnace, the top hinge that the conveyer belt passes through
It is connected to baffle two.
The bottom of the baffle one is fixed with weighted spherical ball, and the conveyer belt is equipped with groove, and the weighted spherical ball is located at described
In groove.
Processing technology comprising the welding production line for helping weldering aerosol producer, includes the following steps:
1) it, heats:
1.1), starting heating tube is heated, and heating tube temperature is made to reach 250 ~ 300 DEG C；
1.2), starting soldering furnace is heated, and welding in-furnace temperature is made to reach 220 ~ 380 DEG C；
2), smog occurs: opening gas source, liquid scaling powder tank and atomizer, gas and scaling powder is brought to atomizer
Afterwards, it is sprayed onto heating device in mist state, scaling powder smog is generated after heating tube heats；
3) it, welds:
3.1) solid-state solder, is put on part to be welded, forms weld assembly；
3.2), weld assembly is put on the belt between two block baffles one；
3.3), conveyer belt brings weld assembly into soldering furnace, solder fusing, and scaling powder smog sufficiently connects with liquid solder
Play the role of helping weldering after touch, conveyer belt takes weld assembly out of soldering furnace after welding.
The beneficial effects of the present invention are: gas source takes liquid scaling powder out of liquid tank, it is fog-like after atomizer to be sprayed onto
Heating cabinet is heated by heating tube, and misty scaling powder is made to become smoke-like, and smoke flow is big, particle is small, convenient abundant with solder
And uniformly contact, it is considerably less in device surface residual after welding, it can be ignored (≤1 ‰) substantially, eliminate traditional technology
In the secondary pollution to product of subsequent cleaning process and cleaning process, reduce production cost, improve yield rate, and
Without discharging of waste liquid, environment is protected；Without using the no-clean scaling powder of low concentration, using the scaling powder of normal concentration,
Guarantee firm welding and reduces cost；It is baffled with soldering furnace side on the conveyor belt, guaranteeing that weld assembly will not be encountered
Under the premise of, it reduces smog and sheds, greatly improve smokescope in furnace, guarantee weld strength, the smog pair to shed can also be reduced
The pollution of environment；It helps weldering aerosol producer to separate with welding equipment, avoids pollution of the liquid scaling powder to welding equipment.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention,
Fig. 2 is the enlarged diagram of soldering furnace and conveyer belt in the present invention；
1 is gas source in figure, and 2 be liquid scaling powder tank, and 3 be atomizer, and 4 be heating device, and 41 be heating tube, and 5 be weldering
Furnace is connect, 51 be baffle two, and 6 be conveyer belt, and 61 be baffle one, and 611 be weighted spherical ball, and 62 be groove.
Specific embodiment
The present invention is illustrated with reference to the accompanying drawing.
As shown in Figure 1, helping weldering aerosol producer, including sequentially connected gas source 1, liquid scaling powder tank 2, atomizer 3
With heating device 4, the gas source 1 is equipped with air outlet valve and intake valve, and air outlet valve is connect by pipeline with liquid scaling powder tank 2,
Air outlet valve is opened, gas takes liquid scaling powder tank 2 out of from being overflow in gas source 1 into liquid scaling powder tank 2, by liquid scaling powder；Into
From external complement gas when air valve facilitates gas deficiency in gas source 1；The liquid scaling powder tank 2 is equipped with liquid feed valve and out liquid
Valve, opens liquid valve, and air-liquid is spilled over to process below from liquid scaling powder tank 2；When soldering flux quantity in liquid scaling powder tank 2
When not enough (liquidometer can set on tank), liquid feed valve is opened, from external complement liquid scaling powder；
It is equipped with regulating valve one between the gas source 1 and liquid scaling powder tank 2, is used for adjusting gas flow size, the liquid
Regulating valve two is equipped between state scaling powder tank 2 and atomizer 3, for adjusting air-liquid uninterrupted；
The heating device 4 includes shell and is located at the intracorporal heat source of shell, and the atomizer 3 is located at the upper of the shell
Portion and outlet inwardly, misty scaling powder is sprayed into shell.
The heat source is heating tube 41, and heating tube 41 is the stainless steel heating tube of the insulation of the coiling with temperature controller, described
Heating tube 41 is placed in 3 lower section of atomizer, so that the misty scaling powder and heating tube 41 of atomizer ejection comes into full contact with,
Make its aerosolization as much as possible.
The gas source is high pressure nitrogen, cannot participate in reaction at high temperature, plays carrier function and protective effect.
Welding production line comprising helping weldering aerosol producer above, as shown in Figure 1, further including being located at the heating device 4
Shell below soldering furnace 5 and pass through 5 bottom of soldering furnace, horizontally disposed conveyer belt 6, the soldering furnace 5 and the heating
Device 4 is connected to by pipeline, and scaling powder smog is facilitated to enter in soldering furnace.The pipeline extends to the bottom of soldering furnace 5, have two
Kind arrangement mode: (1) pipeline vertically extends to 5 bottom of soldering furnace, and aperture one, the upper limb of the aperture one are equipped on tube wall
Equipped with deflector diagonally downward, spread scaling powder smog downwards；(2) pipe level extends to the bottom of soldering furnace 5, pipe
The lower section of wall is equipped with aperture two.Pipeline and aperture can smoothly enter into scaling powder smog in soldering furnace, generate and maintain in furnace
Scaling powder smokescope, arrangement are because close to weld job area, so that the scaling powder smog of operation area close to 5 bottom of soldering furnace
Concentration highest helps weldering effect best.
Liquid scaling powder is injected using high-pressure air source by atomizer 3, the liquid scaling powder after atomization passes through heating device 4
Inner disk around heater strip 41, generate high-voltage smoke, smog is output to the high-temperature operation area of soldering furnace, is formed and helps weldering effect
Atmosphere can be put into the material to be welded of flux-free ingredient after assembling after helping high-temperature region of the weldering smog full of soldering furnace 5
Complete normal weld operation.
Check valve for discharging residual flux is installed on the heating device 4；
As shown in Fig. 2, the conveyer belt 6 is equipped with several baffles 1, on the side wall of the soldering furnace 5, the conveying
It is hinged with baffle 2 51 with the top that 6 pass through, baffle 2 51 is greater than weld assembly with a distance from conveyer belt and (puts on part to be welded solid
State solder, form weld assembly) height.
The bottom of the baffle 1 is fixed with weighted spherical ball 611, and the conveyer belt 6 is equipped with groove 62, the weighted spherical ball
611 are hingedly located at 62 bottom of groove, and the purpose that weighted spherical ball 611 is hinged in groove 62 is can not only to lean on weighted spherical ball 611
Weight so that baffle 1 is restored vertical with conveyer belt 6, and will not fall from conveyer belt 6 when it moves to downward.Weldering
Connected components are placed between two baffles 1, and weld assembly will not be encountered when baffle 1 tilts to utmostly, are being protected in this way
It under the premise of card weld assembly is not destroyed, reduces smog and sheds, greatly improve smokescope in furnace, guarantee weld strength, also
Pollution of the smog to shed to environment can be reduced.
The processing technology of welding production line described above, includes the following steps:
1) it, heats:
1.1), starting heating tube 41 is heated, and so that 41 temperature of heating tube is reached 250 ~ 300 DEG C, can be made scaling powder cigarette
Atomization；
1.2), starting soldering furnace 5 is heated, and so that temperature in soldering furnace 5 is reached 220 ~ 380 DEG C, the peak temperature of burner hearth
It is 350 DEG C ~ 380 DEG C, makes solder fusing, excitation welding activity realizes welding, and solder is with lead lead-Xi-silver as main component
Deng alloy, the fusing point of the solder of different ratio is different, therefore soldering furnace temperature to be achieved is also different, such as used in everyday
Solder be slicker solder silver ratio be 92.5%:5%:2.5%, 280 DEG C of fusing point；
2), smog occurs: the air outlet valve of gas source 1, the liquid valve and atomizer 3 of liquid scaling powder tank 2 are successively opened,
Gas brings scaling powder to atomizer 3, is sprayed onto heating device 4 in mist state, generates after the gasification of heating tube 41 and helps weldering
Agent smog, scaling powder smog is by diffusion and is settled down in soldering furnace；
3) it, welds:
3.1) solid-state solder, is put on part to be welded, forms weld assembly；
3.2), weld assembly is placed on conveyer belt 6 between two block baffles 1；
3.3), conveyer belt 6 brings weld assembly into soldering furnace 5, and solder gradually melts, and scaling powder smog and solder are abundant
Playing the role of helping weldering after contact, weld assembly continues to move ahead in soldering furnace 5, after reaching temperature peak region, temperature
It gradually decreases, moves in weld assembly close to when outlet, temperature is gradually lower than solder melt point, and solder solidification realizes welding, weldering
It connects rear conveyer belt 6 and takes weld assembly out of soldering furnace 5, scaling powder smog comes into full contact with solder, reduces face of weld tension, no
Only improve the wellability of solder and part to be welded, and the basic noresidue in part to be welded surface or residual quantity it is considerably less (≤
1 ‰), without cleaning, eliminates cleaning process, reduces production cost, improves yield rate, and without sewage discharge, protects ring
Border.
The present invention exports after liquid scaling powder is converted into smog, is formed in soldering furnace and helps weldering atmosphere.It is described to help weldering cigarette
Fog generator forms the atomization process that high pressure realizes liquid scaling powder using gas in sealing container, and the scaling powder after atomization is logical
The heating tube for crossing heating device is converted into liquid scaling powder the welding region for helping weldering smog to be output to soldering furnace.Its advantage exists
In:
1) original nitrogen protection environment, is not changed；
2) it, helps weldering aerosol producer to separate with soldering furnace, avoids pollution of the liquid scaling powder to soldering furnace；
3) it, avoids the weld-aiding cream in liquid scaling powder or tin cream from contacting with the direct of part to be welded, reduces or eliminates part to be welded
On welding assisted agent residuals, can exempt welding after cleaning and cleaning process secondary pollution.
Claims (5)
1. the processing technology of the welding production line comprising helping weldering aerosol producer, described to help weldering aerosol producer including being sequentially connected
Gas source, liquid scaling powder tank, atomizer and heating device, the heating device includes shell and being located at the intracorporal heat of shell
Source, it is inside that the atomizer is located at the top of the shell and outlet；The welding production line further includes being located at the heating
Soldering furnace below the shell of device and pass through welding furnace bottom, horizontally disposed conveyer belt, the soldering furnace by pipeline and
The heating device connection；
The conveyer belt is equipped with several baffles one, and on the side wall of the soldering furnace, the top that the conveyer belt passes through is hinged with
Baffle two,
It is characterized in that, the processing technology includes the following steps:
1) it, heats:
1.1), starting heating tube is heated, and heating tube temperature is made to reach 250 ~ 300 DEG C；
1.2), starting soldering furnace is heated, and welding in-furnace temperature is made to reach 220 ~ 380 DEG C；
2), smog occurs: opening gas source, liquid scaling powder tank and atomizer, gas and scaling powder is brought to atomizer, be in
Mist state is sprayed onto heating device, and scaling powder smog is generated after heating tube heats；
3) it, welds:
3.1) solid-state solder, is put on part to be welded, forms weld assembly；
3.2), weld assembly is put on the belt between two block baffles one；
3.3), conveyer belt brings weld assembly into soldering furnace, solder fusing, after scaling powder smog comes into full contact with liquid solder
Play the role of helping weldering, conveyer belt takes weld assembly out of soldering furnace after welding.
2. the processing technology of the welding production line according to claim 1 comprising helping weldering aerosol producer, which is characterized in that
The heat source is heating tube, and the heating tube is placed in below atomizer.
3. the processing technology of the welding production line according to claim 1 comprising helping weldering aerosol producer, which is characterized in that
The gas source is nitrogen.
4. the processing technology of the welding production line according to claim 1 comprising helping weldering aerosol producer, which is characterized in that
The pipeline extends to the bottom of soldering furnace, and tube wall is equipped with aperture.
5. the processing technology of the welding production line according to claim 1 comprising helping weldering aerosol producer, which is characterized in that
The bottom of the baffle one is fixed with weighted spherical ball, and the conveyer belt is equipped with groove, and the weighted spherical ball is set in the groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710081086.9A CN106735711B (en) | 2017-02-15 | 2017-02-15 | Help weldering aerosol producer, welding production line and processing technology comprising the generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710081086.9A CN106735711B (en) | 2017-02-15 | 2017-02-15 | Help weldering aerosol producer, welding production line and processing technology comprising the generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106735711A CN106735711A (en) | 2017-05-31 |
| CN106735711B true CN106735711B (en) | 2019-04-26 |
Family
ID=58957278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710081086.9A Expired - Fee Related CN106735711B (en) | 2017-02-15 | 2017-02-15 | Help weldering aerosol producer, welding production line and processing technology comprising the generator |
Country Status (1)
| Country | Link |
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| CN (1) | CN106735711B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1427666A (en) * | 2001-12-18 | 2003-07-02 | 千住金属工业株式会社 | Local welding method for printed substrate and apparatus thereof |
| JP2007150344A (en) * | 2007-01-25 | 2007-06-14 | Senju Metal Ind Co Ltd | Method of partially soldering printed circuit board |
| CN201089052Y (en) * | 2007-04-23 | 2008-07-23 | 天津市松正电动科技有限公司 | Soldering flux feeding device |
| CN201676786U (en) * | 2010-04-28 | 2010-12-22 | 台达电子工业股份有限公司 | Atomizing control device |
| CN103128019A (en) * | 2011-11-27 | 2013-06-05 | 陕西子竹电子有限公司 | Control system for scaling powder spraying machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201289300Y (en) * | 2008-07-07 | 2009-08-12 | 高热炉业有限公司 | Founding furnace with isolation oxidation efficacy |
-
2017
- 2017-02-15 CN CN201710081086.9A patent/CN106735711B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1427666A (en) * | 2001-12-18 | 2003-07-02 | 千住金属工业株式会社 | Local welding method for printed substrate and apparatus thereof |
| JP2007150344A (en) * | 2007-01-25 | 2007-06-14 | Senju Metal Ind Co Ltd | Method of partially soldering printed circuit board |
| CN201089052Y (en) * | 2007-04-23 | 2008-07-23 | 天津市松正电动科技有限公司 | Soldering flux feeding device |
| CN201676786U (en) * | 2010-04-28 | 2010-12-22 | 台达电子工业股份有限公司 | Atomizing control device |
| CN103128019A (en) * | 2011-11-27 | 2013-06-05 | 陕西子竹电子有限公司 | Control system for scaling powder spraying machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106735711A (en) | 2017-05-31 |
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Granted publication date: 20190426 Termination date: 20210215 |