CN106513909A - Wave-soldering nitrogen protection equipment - Google Patents
Wave-soldering nitrogen protection equipment Download PDFInfo
- Publication number
- CN106513909A CN106513909A CN201611016797.XA CN201611016797A CN106513909A CN 106513909 A CN106513909 A CN 106513909A CN 201611016797 A CN201611016797 A CN 201611016797A CN 106513909 A CN106513909 A CN 106513909A
- Authority
- CN
- China
- Prior art keywords
- wave
- nitrogen
- soldering
- protection equipment
- solder
- 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
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
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
- H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
- H05K3/34—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by soldering
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Molten Solder (AREA)
Abstract
The invention discloses wave-soldering nitrogen protection equipment applied to soldering equipment. The wave-soldering nitrogen protection equipment comprises a soldering wave main body and a microporous pipe for introducing nitrogen. The microporous pipe is connected with a gas flow control panel through a nitrogen input pipeline. The microporous pipe is arranged on the lower portion of a soldering wave. The oxidization prevention effect is improved; and the microporous pipe is provided with honeycomb-like interstitial holes, and the nitrogen consumption is effectively reduced.
Description
Technical field
A kind of a kind of the present invention relates to welding nitrogen filled protection equipment, more particularly to wave-soldering nitrogen protection equipment.
Background technology
Wave-soldering nitrogen protecting system is mainly made up of liquid nitrogen storage tank, conveyance conduit, carburator, wave-soldering nitrogen charging equipment,
Its principle is by inactive gas using equipment（Nitrogen）It is covered on the Molten Tin face of stannum stove, isolates oxygen, subtract so as to reach
Surface tension, a kind of device systems for strengthening wetting power, strengthening welding spot reliability when aoxidizing scruff less, reducing welding.Utilize
This system can help factory be finally reached reduce wave-soldering after fraction defective, reduction stannum amount, so as to improve PCBA welding can
By property.
The existing logical nitrogen equipment in market using the different azimuth such as up and down from soldering furnace, with the stainless steel tube of drilling against
The mode that stannum face is blown carries out logical nitrogen, as the density of nitrogen is slightly less than the density of air, so being actually blown on solder side
Nitrogen amount is limited, also relatively limited to the oxidation-protective effect of solder, can typically reduce by 30% amount of oxidation；And gas consumption is big, about
40 cubic meters per hour；The gas of rustless steel hole blowout carries larger pressure, can cause when blowing on not yet cooling solder joint
Solder joint quality is bad.
The content of the invention
The main technical problem to be solved in the present invention is to provide a kind of wave-soldering nitrogen protection equipment, and which can improve oxygen
Change effect, reduce nitrogen consumption.
For solving above-mentioned technical problem, the present invention provides a kind of wave-soldering nitrogen protection equipment, and which includes solder wave
Main body, the microporous pipe for leading to nitrogen, microporous pipe connect gas flow panel by nitrogen input channel, and the microporous pipe is arranged
In solder wave bottom, the cellular mesopore of class in microporous pipe, is included.
Using metal microporous tube against the logical nitrogen in stannum face, gas consumption can be saved, microporous pipe aperture is 0.2-2.0 microns.
The microporous pipe is sintered Jing after die casting using the powder of alloy material and is formed, and finished product has the cellular mesopore of class.
The microporous pipe is laid in below solder wave.
Metal coil pipe is installed additional in the microporous pipe front end, and has been immersed in 260 degrees Celsius of liquid solder, be blowout
Nitrogen has carried out sufficient preheating.
The structure that the air inlet pipe is combined with electromagnetic valve using hand-operated valve.Hand-operated valve is maintained a normally open, electromagnetic valve by PLC with
Solder motor is interlocked, and realizes automatic switch nitrogen.And the logical nitrogen delay function after the time relay realizes shut-off is set.
The invention has the beneficial effects as follows：A kind of wave-soldering nitrogen protection equipment, includes the main body of solder wave, for leading to nitrogen
Microporous pipe, microporous pipe connects gas flow panel by nitrogen input channel, and the microporous pipe is arranged on solder wave bottom,
Improve oxidation-protective effect；The cellular mesopore of class is included in microporous pipe, effectively reduces nitrogen consumption；
Further, the microporous pipe of 0.2-2.0 microns is employed, test shows that the nitrogen consuming amount of nitrogen charging can be dropped to by original 40
Less than 20 cubes ms/h；The micropore nitrogen charging mode of below solder wave is employed, the amount of oxidation of solder can reduce more than 80%.
Further, employ preheating coil pipe to preheat led to nitrogen, welding quality is improved, failure welding
Rate can reduce by more than 10%；
Further, the mode for automatically controlling nitrogen switch with solder wave linkage is employed, effective foolproof function is served.
Description of the drawings
Fig. 1 is a kind of overall structure diagram of embodiment of wave-soldering nitrogen protection equipment of the present invention；
Schematic cross-sections of the Fig. 2 for the main part of solder wave；
Dimensional structure diagrams of the Fig. 3 for the main part of solder wave.
Specific embodiment
Accompanying drawing is combined below by specific embodiment to be described in further detail the present invention.
For the defect of prior art：1st, the change of nitrogen charging mode, the nitrogen charging of existing equipment is by the way of from top to bottom
Gravity principle is not met.2nd, the reduction of gas consumption, existing equipment because aperture is larger, cause nitrogen by the way of rustless steel drilling
QI consumed amount is big and uneven.3rd, the Preheating of nitrogen is blown out, existing equipment is that the nitrogen less than room temperature is blown into welding directly
Face, easily causes the quality problems such as solder joint cold welding.4th, problem is automatically controlled, the nitrogen inlet duct of existing equipment adopts manual switch valve
Gate control, equipment operator Jing are commonly present the situation for forgetting to switch.The present invention provides technical scheme：
With reference to shown in Fig. 1,2,3, a kind of wave-soldering nitrogen protection equipment includes the main body 3 of solder wave, the micropore for leading to nitrogen
Pipe 1, microporous pipe 1 connect gas flow panel 5 by nitrogen input channel 4, and the microporous pipe 1 is arranged on solder wave bottom,
The cellular mesopore of class is included in microporous pipe 1.（Microporous pipe directly permeates into the logical nitrogen mode on stannum ripple from tin liquor surface, with
Common logical nitrogen equipment is different from the mode blown against stannum face with rustless steel up and down, to the less demanding of sealing, even if not having
Sealing, also can form relatively low oxygen content on stannum face.）
During enforcement, the aperture of the cellular mesopore of 1 class of the microporous pipe is 0.2-2.0 microns.
During enforcement, the microporous pipe 1 is sintered Jing after die casting using the powder of alloy material and is formed.
During enforcement, 1 inlet end of the microporous pipe is provided with metal coil pipe 2 with 4 junction of nitrogen input channel, correspondence
The metal coil pipe 2 is provided with preheating device.
During enforcement, the preheating device is 260 degrees Celsius of liquid solder, and the metal coil pipe 2 is immersed in liquid solder
In.
During enforcement, the gas flow panel 5 connects source of the gas by air inlet pipe, using manual on the air inlet pipe pipeline
The construction of switch that valve is combined with electromagnetic valve；Also include solder motor, the hand-operated valve is maintained a normally open, electromagnetic valve by PLC with
Solder motor is interlocked, and realizes automatic switch nitrogen;And the time relay for realizing the logical nitrogen of time delay after shut-off is additionally provided with,
The time relay continues logical nitrogen function for a period of time after being capable of achieving shut-off.
During enforcement, the main body 3 of the solder wave includes crest spout, and the crest notch setting is partially sealed knot
Structure, and it is provided with the mechanism for being passed through nitrogen.
During enforcement, the main body 3 of the solder wave includes source generator, sets at the motor drive shaft of the source generator
Sealing structure is put, and has been provided with the mechanism for being passed through nitrogen.
During enforcement, the main body 3 of the solder wave is provided with the seal closure of drawer type, and which passes through the motor drive shaft and wave-soldering
The logical nitrogen device in face is plugged into.
During enforcement, residual blood urea/nitrogen analyzer 6 is also associated with the main body 3 of the solder wave for analyzing residual nitrogen（Residual blood urea/nitrogen analyzer 6
Detection mouth be arranged in the main body 3 of solder wave）, slideable opening 7 is additionally provided with the main body 3 of solder wave.
In such scheme, against the device used metal microporous pipe of the logical nitrogen in stannum face, aperture is adopted for 0.2-2.0 microns
Equally distributed particulate metal microporous pipe, just uniformly can overflow the nitrogen that sheds under a certain pressure, not affect welding quality, reduce
The relatively common logical nitrogen equipment of the aspects such as oxidizing slag, gas consumption is significantly increased, can typically reduce the 80% of solder oxidation amount with
On, nitrogen is consumed per hour is less than 20 cubic meters.
Different by the way of stainless steel tube drilling from the logical nitrogen equipment of common wave-soldering, nitrogen gas preparing of the present invention is using special
Different metal nano-tube, uniformly can overflow the nitrogen that sheds under a certain pressure, not affect welding quality, reduce oxidizing slag, gas consumption
Etc. the relatively common logical nitrogen equipment of aspect be significantly increased.
This equipment adopts logical nitrogen mode of the microporous pipe cloth below solder wave, the lighter gas of relative atmospheric to lower and overflow
Go out, meet gravity principle, nitrogen can have uniformly and effectively been acted on solder side.
The present invention is because using special microporous pipe (nanotube), facing upwards even dispersion nitrogen from stannum, so need not do especially
Sealing just can reach relatively low remaining oxygen in Xi Mianshang（When static, stannum face oxygen content is less than 500PPM）, no sealing device
Hinder, Operation and Maintenance is all more facilitated.
Metal disperse pipe of this equipment using only 0.2-2.0 microns（Microporous pipe）, powder of this pipe for specific alloy material
Last sintering Jing after die casting forms, and finished product has the cellular mesopore of class., outlet is uniform and gas consumption is little, can accomplish less than 20 cubes
M/h.
The metal microporous tube of this equipment（Disperse pipe）Front end has installed metal coil pipe additional, and is immersed in 260 degrees Celsius of liquid
In solder, it is that the nitrogen of blowout has carried out sufficient preheating, effectively prevent welding quality problem.
The air inlet pipe of this equipment keeps hand-operated valve normally opened by the way of hand-operated valve is combined with electromagnetic valve, at ordinary times, electromagnetic valve
Interlocked with solder motor by PLC, realize automatic switch nitrogen.And the logical nitrogen time delay work(after the time relay realizes shut-off
Can, it is possible to resolve when solder motor stops in short-term, solder does not have the problem that nitrogen is protected.Shut-off when hand-operated valve is emergent is used.
Small-sized interim gas station provides the source nitrogen that purity is 99.999% for nitrogen device；The nitrogen that source of the gas is brought is entered
Control panel is set by technological requirement and send into stannum stove by refractory metal flexible pipe after flow；Nitrogen protection device on stannum stove, profit
With particulate metal microporous pipe by nitrogen even dispersion to stannum stove and stannum wave surface.
Empirical data teaches that in stannum stove 80% scruff is produced in crest nozzle, and 15% scruff is sent out in stannum stove wave source
Produce at the motor drive shaft of raw device, I takes charge of and the two keypoint parts are processed.
The present invention is different from the improvement part of legacy equipment to be included：1. cancel former motor drive shaft logical nitrogen protection cover, 2. make one
The seal closure of the drawer type of individual below figure, plugs into through the logical nitrogen device of motor drive shaft and the crest face of weld, and it is hermetically sealed to test stannum face,
Can conveniently pick and place again, not affect to operate and safeguard.
Above content is with reference to specific embodiment further description made for the present invention, it is impossible to assert this
It is bright to be embodied as being confined to these explanations.For general technical staff of the technical field of the invention, do not taking off
On the premise of present inventive concept, some simple deduction or replace can also be made, should all be considered as belonging to the protection of the present invention
Scope.
Claims (10)
1. a kind of wave-soldering nitrogen protection equipment, includes the main body of solder wave（3）, microporous pipe for leading to nitrogen（1）, micropore
Pipe（1）By nitrogen input channel（4）Connection gas flow panel（5）, it is characterised in that the microporous pipe（1）It is arranged on
Solder wave bottom, microporous pipe（1）On include the cellular mesopore of class.
2. wave-soldering nitrogen protection equipment as claimed in claim 1, it is characterised in that the microporous pipe（1）Cellular of class
The aperture of lyriform pore is 0.2-2.0 microns.
3. wave-soldering nitrogen protection equipment as claimed in claim 1, it is characterised in that the microporous pipe（1）Using alloy material
The powder of matter is sintered Jing after die casting and is formed.
4. wave-soldering nitrogen protection equipment as claimed in claim 1, it is characterised in that the microporous pipe（1）Inlet end and nitrogen
Gas input channel（4）Junction is provided with metal coil pipe（2）, the correspondence metal coil pipe（2）It is provided with preheating device.
5. wave-soldering nitrogen protection equipment as claimed in claim 4, it is characterised in that the preheating device is 260 degrees Celsius
Liquid solder, the metal coil pipe（2）It is immersed in liquid solder.
6. wave-soldering nitrogen protection equipment as claimed in claim 1, it is characterised in that the gas flow panel（5）It is logical
Cross air inlet pipe connection source of the gas, the construction of switch combined with electromagnetic valve using hand-operated valve on the air inlet pipe pipeline；Weldering is included also
Material motor, the hand-operated valve are maintained a normally open, and electromagnetic valve is interlocked with solder motor by PLC, realizes automatic switch nitrogen;And also
It is provided with for realizing leading to the time relay of nitrogen time delay after shut-off.
7. wave-soldering nitrogen protection equipment as claimed in claim 1, it is characterised in that the main body of the solder wave（3）Including
There is crest spout, the crest notch setting is partially sealed structure, and is provided with the mechanism for being passed through nitrogen.
8. wave-soldering nitrogen protection equipment as claimed in claim 1, it is characterised in that the main body of the solder wave（3）Including
There is source generator, sealing structure is provided with the motor drive shaft of the source generator, and is provided with the mechanism for being passed through nitrogen.
9. wave-soldering nitrogen protection equipment as claimed in claim 8, it is characterised in that the main body of the solder wave（3）Arrange
There is the seal closure of drawer type, which passes through the motor drive shaft and the logical nitrogen device of the crest face of weld to plug into.
10. wave-soldering nitrogen protection equipment as claimed in claim 1, it is characterised in that the main body of the solder wave（3）It is upper to go back
It is connected with residual blood urea/nitrogen analyzer（6）, in the main body of solder wave（3）On be additionally provided with slideable opening（7）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611016797.XA CN106513909A (en) | 2016-11-18 | 2016-11-18 | Wave-soldering nitrogen protection equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611016797.XA CN106513909A (en) | 2016-11-18 | 2016-11-18 | Wave-soldering nitrogen protection equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106513909A true CN106513909A (en) | 2017-03-22 |
Family
ID=58352612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611016797.XA Pending CN106513909A (en) | 2016-11-18 | 2016-11-18 | Wave-soldering nitrogen protection equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106513909A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1074157A (en) * | 1991-12-06 | 1993-07-14 | 伊莱克特罗弗特有限公司 | Gas hood fluctuation welding |
| GB2292902A (en) * | 1994-09-07 | 1996-03-13 | Sony Uk Ltd | Wave solder machine with dross suppression function |
| CN1124470A (en) * | 1994-02-28 | 1996-06-12 | 空气液体美国公司 | Process and apparatus for the wave soldering of circuit boards |
| CN202411611U (en) * | 2011-12-13 | 2012-09-05 | 广运科技（苏州）有限公司 | Nitrogen automatic switching-off system for reflow oven |
| CN202539738U (en) * | 2012-02-17 | 2012-11-21 | 日东电子科技(深圳)有限公司 | Solder machine area nitrogen charging device for wave soldering machine |
| CN102825359A (en) * | 2011-06-17 | 2012-12-19 | 气体产品与化学公司 | Apparatus and method of providing an inert gas during soldering |
| CN104801809A (en) * | 2014-01-29 | 2015-07-29 | 气体产品与化学公司 | Device and method for providing inert gas during welding |
| CN105945378A (en) * | 2016-05-20 | 2016-09-21 | 深圳市劲拓自动化设备股份有限公司 | Wave-crest soldering machine and nitrogen protection device thereof |
| CN206200289U (en) * | 2016-11-18 | 2017-05-31 | 深圳市凯丰实业发展有限公司 | A kind of wave-soldering nitrogen protection equipment |
-
2016
- 2016-11-18 CN CN201611016797.XA patent/CN106513909A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1074157A (en) * | 1991-12-06 | 1993-07-14 | 伊莱克特罗弗特有限公司 | Gas hood fluctuation welding |
| CN1124470A (en) * | 1994-02-28 | 1996-06-12 | 空气液体美国公司 | Process and apparatus for the wave soldering of circuit boards |
| GB2292902A (en) * | 1994-09-07 | 1996-03-13 | Sony Uk Ltd | Wave solder machine with dross suppression function |
| CN102825359A (en) * | 2011-06-17 | 2012-12-19 | 气体产品与化学公司 | Apparatus and method of providing an inert gas during soldering |
| CN202411611U (en) * | 2011-12-13 | 2012-09-05 | 广运科技（苏州）有限公司 | Nitrogen automatic switching-off system for reflow oven |
| CN202539738U (en) * | 2012-02-17 | 2012-11-21 | 日东电子科技(深圳)有限公司 | Solder machine area nitrogen charging device for wave soldering machine |
| CN104801809A (en) * | 2014-01-29 | 2015-07-29 | 气体产品与化学公司 | Device and method for providing inert gas during welding |
| CN105945378A (en) * | 2016-05-20 | 2016-09-21 | 深圳市劲拓自动化设备股份有限公司 | Wave-crest soldering machine and nitrogen protection device thereof |
| CN206200289U (en) * | 2016-11-18 | 2017-05-31 | 深圳市凯丰实业发展有限公司 | A kind of wave-soldering nitrogen protection equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206200289U (en) | A kind of wave-soldering nitrogen protection equipment | |
| US4908058A (en) | Method and apparatus for reducing dust accretions while treating gases in a smelting furnace | |
| CN106513909A (en) | Wave-soldering nitrogen protection equipment | |
| CN108637199B (en) | Method for reducing molten steel temperature of first-furnace ladle for pouring of tundish | |
| CN207749161U (en) | The control device and consutrode of reducing atmosphere in esr process | |
| CN85107557A (en) | The closing device of metallurgical tank bottom discharge orifice | |
| CN107702533A (en) | A kind of sintering ignition tiny structure device | |
| CN110273048A (en) | A kind of VD furnace online processing position threads feeding apparatus and method | |
| CN207057610U (en) | A kind of tundish exit port control device | |
| CN214109131U (en) | Crest welder | |
| CN104774992B (en) | Method for adopting control device for converter steelmaking nitrogen-oxygen combined blowing to realize converter steelmaking nitrogen-oxygen combined blowing | |
| CN108660290A (en) | A kind of compound ar blowing refining device and method in Medium frequency induction furnace roof bottom | |
| CN207104094U (en) | A kind of automation air exhaust protection of laser welding dynamic lithium battery cap | |
| CN107604153B (en) | A kind of device and its application method directly preparing material using metallic ore | |
| CN2789694Y (en) | High-temperature molten slag continuous reduction copper-smelting slag separating furnace | |
| CN210789233U (en) | Device capable of controlling molten metal liquid level and stopper rod | |
| KR100426672B1 (en) | Apparatus for transferring liquid metal from an upright casting station and method of operation of the apparatus | |
| CN205954048U (en) | Molten iron desulphurization's heat -proof device of discharging fume | |
| CN206122028U (en) | Scaling powder shower nozzle leak protection device | |
| CN106180598A (en) | The control nitrogen pouring procedure of a kind of nitrogenous steel ingot and running gate system | |
| CN207272172U (en) | A kind of aluminium water delivery chute | |
| JPS6263613A (en) | Method and apparatus for tapping in converter or aod furnace | |
| CN209263631U (en) | Smelting apparatus is used in a kind of production of military project heat resisting steel | |
| CN202267368U (en) | Automatic air feed device for magnesium alloy smelter | |
| CN210736808U (en) | Steel tapping trolley |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20190306 Address after: 518131 Office Building, 2nd Floor, Huada Road, Longhua Street, Longhua New District, Shenzhen City, Guangdong Province Applicant after: Shenzhen Kaifeng Industrial Development Co., Ltd. Address before: 516723 Toyota Village 21, Jianmen Village Committee, Hekou Town, Luhe County, Shanwei City, Guangdong Province Applicant before: Luo Guowu |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170322 |