CN103920958A - Process for preventing oxidation of soldering tin in tin furnace by aid of peanut oil - Google Patents
Process for preventing oxidation of soldering tin in tin furnace by aid of peanut oil Download PDFInfo
- Publication number
- CN103920958A CN103920958A CN201410120101.2A CN201410120101A CN103920958A CN 103920958 A CN103920958 A CN 103920958A CN 201410120101 A CN201410120101 A CN 201410120101A CN 103920958 A CN103920958 A CN 103920958A
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- CN
- China
- Prior art keywords
- tin
- soldering
- peanut oil
- welding
- oxidation
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/008—Soldering within a furnace
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
Abstract
The invention discloses a process for preventing oxidation of soldering tin in a tin furnace by aid of peanut oil, and relates to the technical field of SMT (surface mount technology) engineering. The process is applicable to the surfaces of tin furnaces on automatic wave soldering and dip soldering assembly lines. The process includes that the peanut oil is slowly poured into the tin furnace along the edge of the periphery of the tin furnace when the soldering tin is melted and the temperature of the soldering tin reaches the soldering temperature, normal soldering production is carried out, and the peanut oil which is high in oxidation resistance floats on a tin surface in soldering procedures, so that oxygen can be isolated by the oil, the soldering tin is protected against oxidation, only few soldering tin is oxidized and also can be reduced after being oxidized, the peanut oil in the tin furnace is cleaned after soldering is completed, and peanut oil needs to be added into the tin furnace again in about 24 hours under the condition of long-time soldering. The process has the advantages that the process is safe and environmental friendly, is harmless to production staffs and low in cost and is particularly applicable to factories where tin furnaces are not used for a long time, and the production cost can be reduced.
Description
Technical field
The present invention relates to SMT field of engineering technology, be specifically related to a kind of technique that stops scolding tin oxidation in tin stove with peanut oil.
Background technology
Solder furnace is under lasting heating and melting state, and airborne oxygen can be oxidized tin solder rapidly.The tin oxide producing, the surface that lead oxide floats over scolding tin, form a large amount of scum silica frost in the course of time, not only caused the waste of scolding tin, more seriously affected welding quality, causes rosin joint.As everyone knows, rosin joint is the most headachy problem in electron trade, is also to affect the most important reason of Quality of electronic products.In addition from July 1 in 2006 Qi European Union by the ROHS instruction of formally implementing about environmental protection, in production process introduce " pb-free solder " technology, this just require whole electron trade carry out " unleaded " transformation.Novel lead-free solder melting temperature is higher, also more easily oxidation, in order to improve welding quality, reduces rosin joint, and reduce the waste of tin solder, add anti-oxidant, reducing agent with the oxidation on molten tin surface in the preventing tin stove process modification measure that is necessary on the surface of molten tin.
Electronic product, in scolding tin process, can produce oxidation material-" welding slag " of a lot of tin in the tin stove of its process equipment wave-soldering, Reflow Soldering etc., make the product quality after welding decline and waste scolding tin raw material etc.
Tin its surface in the time of high temperature can produce with oxygen haptoreaction " scruff ", " scruff " and " scolding tin " has not been same material, the melt temperature of " scruff " is higher to a lot of than the melt temperature of " scolding tin ", temperature in welding process in tin stove is impossible melting " scruff ", so " scruff " is just present on the inwall of tin stove or the top of " scolding tin ", make troubles and do not say and also wasted many " scolding tin " to processing, " scolding tin reducing agent " is exactly to utilize its characteristic effectively these " scruffs " to be reduced into " scolding tin ", scolding tin is anti-oxidant is that protection " scolding tin " does not reoxidize.
The defect of above method
1. reducing agent has very large corrosivity to the material of tin stove own, is substantially approximately having obvious sign after 6 months;
2. PCB welding essence is had to impact, it can flow to pad with tin ripple, enters possibly in solder joint;
3. running stores, cost is high;
4. the gas that oxidation-resistant material produces has an impact to operator is healthy.
Summary of the invention
Technical problem to be solved by this invention is to provide one can reduce in tin stove scruff and generates, economize in raw materials and process costs stop the technique of scolding tin oxidation in tin stove with peanut oil.
Technical problem to be solved by this invention realizes by the following technical solutions:
A kind of technique that stops scolding tin oxidation in tin stove with peanut oil; be applicable to tin stove surface on automatic wave soldering immersed solder streamline; in the time that melts soldering tin reaches welding temperature; slowly pour around peanut oil into along edge; produce through the normal welding of row; because peanut oil has very strong non-oxidizability; oil float energy starvation on tin face in welding process; protection scolding tin is not oxidized; after having only a few scolding tin oxidized, also can be reduced; peanut oil is cleaned out to tin stove after welding completes, peanut oil need be again added in long-time welding about 24 hours.
Concrete grammar be as follows before welding, scolding tin adds peanut oil after melting in tin stove, peanut oil is one to have very strong non-oxidizability, is specially adapted to tin stove surface on automatic wave soldering immersed solder streamline, effect is fine, cost performance is high.
The invention has the beneficial effects as follows:
1) using quilt invention can reduce scruff in tin stove generates.
2) economize in raw materials and process costs.Non-corrosiveness, on the welding of tin stove and PCBA plate without impact.
3) safety and environmental protection, harmless to Manufacturing Worker.
4) cost is low, reduces production costs, and is especially suitable for the factory that tin stove does not use for a long time.
Detailed description of the invention
For technological means, creation characteristic that the present invention is realized, reach object and effect is easy to understand, below in conjunction with specific embodiment, further set forth the present invention.
Embodiment 1
A kind of technique that stops scolding tin oxidation in tin stove with peanut oil; be applicable to tin stove surface on automatic wave soldering immersed solder streamline; in the time that melts soldering tin reaches welding temperature; slowly pour around peanut oil into along edge; produce through the normal welding of row; because peanut oil has very strong non-oxidizability; oil float energy starvation on tin face in welding process; protection scolding tin is not oxidized; after having only a few scolding tin oxidized, also can be reduced; peanut oil is cleaned out to tin stove after welding completes, peanut oil need be again added in long-time welding about 24 hours.
Concrete grammar be as follows before welding, scolding tin adds peanut oil after melting in tin stove, peanut oil is one to have very strong non-oxidizability, is specially adapted to tin stove surface on automatic wave soldering immersed solder streamline, effect is fine, cost performance is high.
More than show and described general principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and description, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (2)
1. one kind stops the technique of scolding tin oxidation in tin stove with peanut oil; it is characterized in that: be applicable to tin stove surface on automatic wave soldering immersed solder streamline; in the time that melts soldering tin reaches welding temperature; slowly pour around peanut oil into along edge; produce through the normal welding of row; because peanut oil has very strong non-oxidizability; oil float energy starvation on tin face in welding process; protection scolding tin is not oxidized; after having only a few scolding tin oxidized, also can be reduced; peanut oil is cleaned out to tin stove after welding completes, long-time welding need be added again at 24 hours peanut oil.
2. the technique that stops scolding tin oxidation in tin stove with peanut oil according to claim 1, is characterized in that: before welding, scolding tin adds peanut oil after melting in tin stove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410120101.2A CN103920958A (en) | 2014-03-27 | 2014-03-27 | Process for preventing oxidation of soldering tin in tin furnace by aid of peanut oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410120101.2A CN103920958A (en) | 2014-03-27 | 2014-03-27 | Process for preventing oxidation of soldering tin in tin furnace by aid of peanut oil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103920958A true CN103920958A (en) | 2014-07-16 |
Family
ID=51139484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410120101.2A Pending CN103920958A (en) | 2014-03-27 | 2014-03-27 | Process for preventing oxidation of soldering tin in tin furnace by aid of peanut oil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103920958A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104195351A (en) * | 2014-08-07 | 2014-12-10 | 安徽秋田电子有限公司 | Process for reducing solder splash in solder machine by peanut oil |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3893409A (en) * | 1972-12-01 | 1975-07-08 | Xerox Corp | Apparatus for solder coating printed circuit boards |
| JPH06198426A (en) * | 1992-12-28 | 1994-07-19 | Yokota Kikai Kk | Automatic soldering device |
| CN1950172A (en) * | 2004-04-16 | 2007-04-18 | P.凯金属股份有限公司 | Soldering process |
| CN103212761A (en) * | 2012-06-26 | 2013-07-24 | 深圳市堃琦鑫华科技有限公司 | Welding method |
| CN103212921A (en) * | 2012-06-26 | 2013-07-24 | 深圳市堃琦鑫华科技有限公司 | Reductant composition and preparation method thereof, and welding method |
-
2014
- 2014-03-27 CN CN201410120101.2A patent/CN103920958A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3893409A (en) * | 1972-12-01 | 1975-07-08 | Xerox Corp | Apparatus for solder coating printed circuit boards |
| JPH06198426A (en) * | 1992-12-28 | 1994-07-19 | Yokota Kikai Kk | Automatic soldering device |
| CN1950172A (en) * | 2004-04-16 | 2007-04-18 | P.凯金属股份有限公司 | Soldering process |
| CN103212761A (en) * | 2012-06-26 | 2013-07-24 | 深圳市堃琦鑫华科技有限公司 | Welding method |
| CN103212921A (en) * | 2012-06-26 | 2013-07-24 | 深圳市堃琦鑫华科技有限公司 | Reductant composition and preparation method thereof, and welding method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104195351A (en) * | 2014-08-07 | 2014-12-10 | 安徽秋田电子有限公司 | Process for reducing solder splash in solder machine by peanut oil |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140716 |