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Low-volatility high rosin flux and preparation method thereof

A rosin flux, low volatility technology, used in welding equipment, welding media, manufacturing tools, etc., can solve the problem of transformer feet, pole feet blackening, transformer feet, pole feet blackening, and increased flux concentration. problems, to achieve the effect of prolonging the service life, quickly and quickly tinning, and preventing air oxidation

Active Publication Date: 2013-11-20
广东剑鑫科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional soldering fluxes use low-boiling point alcohols and benzene-based organic compounds as solvents. The solvents of the fluxes are volatile and the concentration of the fluxes increases, requiring frequent replenishment of thinners, which increases the cost of use.
At the same time, traditional rosin-type fluxes use acidic substances as active agents, which can easily cause blackening of transformer feet and pole feet
With the development of the electronics industry and the advancement of technology, there are more and more electronic products, and the demand for transformers is also increasing. However, there are not many special fluxes for electronic products that require high welding quality, such as transformers and poles. The existing flux is difficult to solve its volatile nature, and the transformer feet and pole feet are prone to blackening after welding, which affects product quality

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] A kind of low volatility high rosin soldering flux, by weight percentage, is made up of following components,

[0051] Rosin 60%

[0052] Carbon disulfide 37%

[0053] Tetrahydrofurfuryl Alcohol 1%

[0054] Triethylene glycol butyl ether 2%.

[0055] The preparation method of the present invention is:

[0056] The first step: adding carbon disulfide, tetrahydrofurfuryl alcohol and triethylene glycol butyl ether into a reactor with a stirring function by weight percentage;

[0057] Second step: add the rosin of corresponding weight percentage in reactor again;

[0058] The third step: fully stir until the rosin is completely dissolved, the mixture is brownish yellow, and the stirring density is 0.96±0.02 (g / cm 3 ) of the liquid.

[0059] The low-volatility high-rosin soldering flux of the present invention has a fast tinning speed and penetrates into the root of the soldering terminal to completely wrap the soldering terminal to avoid blackening of the soldering te...

Embodiment 2

[0061] A kind of low volatility high rosin soldering flux, by weight percentage, is made up of following components,

[0062] Rosin 50%

[0063] Carbon disulfide 42%

[0064] Tetrahydrofurfuryl Alcohol 3%

[0065] Triethylene glycol butyl ether 5%.

[0066] The preparation method of the low-volatility high-rosin flux of this embodiment is the same as that of Embodiment 1, and will not be repeated here.

Embodiment 3

[0068] A kind of low volatility high rosin soldering flux, by weight percentage, is made up of following components,

[0069] Rosin 68%

[0070] Carbon disulfide 31.85%

[0071] Tetrahydrofurfuryl alcohol 0.1%

[0072]Triethylene glycol butyl ether 0.05%.

[0073] The preparation method of the low-volatility high-rosin flux of this embodiment is the same as that of Embodiment 1, and will not be repeated here.

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PUM

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Abstract

The invention relates to a flux, in particular to a low-volatility high rosin flux and a preparation method thereof, and the low-volatility high rosin flux is exclusively used for welding transformer pins and electric pole pins. The low-volatility high rosin flux comprises the following components of 50-70 percent of rosin, 30-48 percent of carbon bisulfide, 0.1-3 percent of tetrahydrofurfuryl alcohol and 0.05-5 percent of triethylene glycol butyl ether. The low-volatility high rosin flux disclosed by the invention is mainly used for welding electronic products such as transformers and electric poles. Compared with the prior art, the low-volatility high rosin flux has a favorable weld aiding activity and has the characteristics of low volatility, high tinning speed, less corrosion, good quality of tin points, full leading wires, easiness for cleaning and the like.

Description

technical field [0001] The invention relates to flux, in particular to a low-volatility high-rosin flux specially used for welding transformer legs and pole legs and a preparation method thereof. Background technique [0002] In the electronics industry, welding is one of the key processes in the production and assembly of electronic products. The quality of welding directly affects the quality of electronic products. Traditional soldering flux uses low-boiling point alcohols and benzene organic compounds as solvents. The solvent of the flux is volatile, and the concentration of the flux increases. Frequent replenishment of the thinner is required, which increases the cost of use. At the same time, traditional rosin-type fluxes use acidic substances as active agents, which can easily cause blackening of transformer feet and pole feet. With the development of the electronics industry and the advancement of technology, there are more and more electronic products, and the dema...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K35/362
Inventor 邓剑明
Owner 广东剑鑫科技股份有限公司