CN101890587A - Soldering flux for lead-tin soldering of shaft tips of instrument - Google Patents
Soldering flux for lead-tin soldering of shaft tips of instrument Download PDFInfo
- Publication number
- CN101890587A CN101890587A CN2009101428561A CN200910142856A CN101890587A CN 101890587 A CN101890587 A CN 101890587A CN 2009101428561 A CN2009101428561 A CN 2009101428561A CN 200910142856 A CN200910142856 A CN 200910142856A CN 101890587 A CN101890587 A CN 101890587A
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- soldering
- lead
- rosin
- instrument
- soldering flux
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Abstract
The invention relates to a soldering flux for lead-tin soldering of shaft tips of an instrument, and aims to solve the problem that the conventional shaft tips (anti-seismic abrasion-resistant alloy tool steel) of the instrument cannot be subjected to the lead-tin soldering. The soldering flux consists of rosin, phosphoric acid and alcohol, wherein moderately strong phosphoric acid is used as an antioxidant; the rosin is acidic at a high temperature so as to enhance the effect of an anti-oxidation film; meanwhile, the rosin can reduce surface tension and increase soldering fluidity, is favorable for soldering and wetting weldments, has anti-oxidation effect and floats on the surface of the soldering flux after being molten to form an isolating layer, so that the solder side is prevented from being oxidized; and the alcohol can enhance the fluidity of the soldering flux, make the soldering flux uniformly coated, dissolve a lubricant for cleaning the solder side, and enhance the humidity of the soldering flux so as to fulfill the aim of the lead-tin soldering. The soldering flux can be used for the lead-tin soldering of the shaft tips of the instrument, and can also be used for the lead-tin soldering of other metals such as stainless steel and the like; meanwhile, the soldering flux has the advantages of convenient preparation, low cost and easy popularization.
Description
Affiliated technical field
The present invention is a kind of scaling powder.
Background technology
Be used for the scaling powder of metallic tin lead welding in the instrument manufacturing at present, rosin, solder(ing) paste etc. are arranged, work the weldering effect that helps in the time of carrying out soldering to metals such as copper, iron.But because shaft tips of instrument generally all adopts the alloy tool steel material of antivibration wear resistants such as U115W-UN1 2955 or 3J22, existing various scaling powders can't be realized the tin lead welding to shaft tips of instrument.
Summary of the invention
The object of the present invention is to provide a kind of scaling powder that is used for lead-tin soldering of shaft tips of instrument, connect with the tin lead welding that realizes shaft tips of instrument.
The present invention realizes goal of the invention like this: with the alcohol dissolving rosin, add phosphoric acid and form aqueous scaling powder, with in strong phosphoric acid do the deoxidation agent, rosin at high temperature is the acid oxide film dissolving effect of strengthening; Rosin has the surface tension of reducing simultaneously, increases the scolding tin flowability, helps the moistening weldment of scolding tin; Rosin also has the oxidation of preventing, after its fusing, swims in solder surface, forms separation layer, thereby has prevented the oxidation of solder side; The effect of alcohol is a dissolving rosin, strengthens the flowability of scaling powder, impels the scaling powder coating evenly, and alcohol can dissolve the lubricant on the cleaning solder side simultaneously, strengthens the moistening of scaling powder.The present invention is made up of rosin, phosphoric acid, alcohol, and its proportioning is:
Rosin: 30%～35%
Phosphoric acid: 15%～20%
Alcohol: 45%～55%
Advantage of the present invention is: scaling powder is the mucus shape, and it is strong to have wettability, and coating is even, and no welding slag, postwelding need not to clean, and nontoxic nothing corrosion can not only be used for lead-tin soldering of shaft tips of instrument, also can be used for metal, stainless tin lead weldings such as various copper iron.Simultaneously, this scaling powder is easy to prepare, and is cheap, is easy to promote.
The specific embodiment:
The invention will be further described according to embodiment below.
Embodiments of the invention adopt best proportioning to be (mass ratio):
Rosin: 32%
Phosphoric acid: 18%
Alcohol: 50%
Wherein rosin adopts industrial rosin, and phosphoric acid adopts the chemical pure grade goods more than 95%, and alcohol adopts 99.5% technical pure grade goods.Earlier with the alcohol dissolving rosin, add phosphoric acid again and mix and get final product during preparation, coat during use and treat to obtain good welding effect in the weldment surface.
Claims (3)
1. a soldering flux for lead-tin soldering of shaft tips of instrument is characterized in that being made up of rosin, phosphoric acid, alcohol, and its proportioning is:
Rosin: 30%～35%
Phosphoric acid: 15%～20%
Alcohol: 45%～55%
2. it is characterized in that according to the described soldering flux for lead-tin soldering of shaft tips of instrument of claim 1: rosin adopts industrial rosin, and phosphoric acid adopts the chemical pure grade goods more than 95%, and alcohol adopts 99.5% technical pure grade goods.
3. it is characterized in that according to claim 1 and 2 described soldering flux for lead-tin soldering of shaft tips of instrument: earlier with the alcohol dissolving rosin, add phosphoric acid again and mix and form during preparation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101428561A CN101890587A (en) | 2009-05-19 | 2009-05-19 | Soldering flux for lead-tin soldering of shaft tips of instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101428561A CN101890587A (en) | 2009-05-19 | 2009-05-19 | Soldering flux for lead-tin soldering of shaft tips of instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101890587A true CN101890587A (en) | 2010-11-24 |
Family
ID=43100016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101428561A Pending CN101890587A (en) | 2009-05-19 | 2009-05-19 | Soldering flux for lead-tin soldering of shaft tips of instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101890587A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102728817A (en) * | 2012-05-22 | 2012-10-17 | 山东圣阳电源科技有限公司 | Preparation method of soldering flux for cast welding of lead-calcium alloy polar plate grate of storage battery |
| CN105945452A (en) * | 2016-06-15 | 2016-09-21 | 浙江天能动力能源有限公司 | Lead acid battery flux and preparation method and application thereof |
| CN108838582A (en) * | 2018-05-24 | 2018-11-20 | 天能集团（河南）能源科技有限公司 | A kind of integration scaling powder and preparation method thereof |
| CN114945252A (en) * | 2022-04-28 | 2022-08-26 | 四会富仕电子科技股份有限公司 | Method for filling through hole with metal |
-
2009
- 2009-05-19 CN CN2009101428561A patent/CN101890587A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102728817A (en) * | 2012-05-22 | 2012-10-17 | 山东圣阳电源科技有限公司 | Preparation method of soldering flux for cast welding of lead-calcium alloy polar plate grate of storage battery |
| CN105945452A (en) * | 2016-06-15 | 2016-09-21 | 浙江天能动力能源有限公司 | Lead acid battery flux and preparation method and application thereof |
| CN108838582A (en) * | 2018-05-24 | 2018-11-20 | 天能集团（河南）能源科技有限公司 | A kind of integration scaling powder and preparation method thereof |
| CN114945252A (en) * | 2022-04-28 | 2022-08-26 | 四会富仕电子科技股份有限公司 | Method for filling through hole with metal |
| CN114945252B (en) * | 2022-04-28 | 2023-11-10 | 四会富仕电子科技股份有限公司 | Method for filling through holes with metal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |
Open date: 20101124 |