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Welding flux

A technology of flux and parts by weight, which is applied in the direction of welding medium, welding equipment, welding/cutting medium/material, etc., can solve the problems of decomposition, unsafety, operator injury, etc. cleaning effect

Active Publication Date: 2016-07-06
乐星汽车电子(青岛)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The flux in the prior art is not safe and inconvenient to use during the actual soldering process
At the same time, due to the high temperature and high pressure environment during welding, the toxic substances contained in it will be easily decomposed, which will cause harm to the operator.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A kind of flux, is made up of the raw material of following parts by weight:

[0025] Rosin resin 15 parts

[0026] 5 parts ethanol

[0027] 1 part succinic acid

[0028] 1 part butyl acetate

[0029] 3 parts polypropylene resin

[0030] Polyamide modified hydrogenated castor oil 2 parts

[0031] 5 parts of ethylenediamine hydrochloride.

Embodiment 2

[0033] A kind of flux, is made up of the raw material of following parts by weight:

[0034] Rosin resin 20 parts

[0035] 7.5 parts of ethanol

[0036] 2 parts succinic acid

[0037] 2 parts butyl acetate

[0038] 5 parts polypropylene resin

[0039] Polyamide modified hydrogenated castor oil 4 parts

[0040] 7.5 parts of ethylenediamine hydrochloride.

Embodiment 3

[0042] A kind of flux, is made up of the raw material of following parts by weight:

[0043] Rosin resin 25 parts

[0044] 10 parts ethanol

[0045] 3 parts succinic acid

[0046] 3 parts butyl acetate

[0047] 7 parts polypropylene resin

[0048] Polyamide modified hydrogenated castor oil 6 parts

[0049] 10 parts of ethylenediamine hydrochloride.

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PUM

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Abstract

The invention discloses welding flux which is composed of, by weight, 15-25 parts of rosin resin, 5-10 parts of alcohol, 1-3 parts of succinic acid, 1-3 parts of butyl acetate, 3-7 parts of polypropylene resin, 2-6 parts of polyamide modified hydrogenated castor oil and 5-10 parts of ethylenediamine dihydrochloride. The welding flux is safe, stable, less prone to decomposition, difficult to burn, little in residue after welding, free of halogen ion, easy to wash, low in toxicity and harmless.

Description

technical field [0001] The invention relates to the field of electronic reagents, in particular to a flux. Background technique [0002] Flux is usually a mixture of rosin as the main component, which is an auxiliary material to ensure the smooth progress of the soldering process. Welding is the main process in electronic assembly. Flux is an auxiliary material used in welding. The main function of flux is to remove the oxides on the surface of the solder and the base material to be welded, so that the metal surface can reach the necessary cleanliness. It prevents The re-oxidation of the surface reduces the surface tension of the solder and improves the soldering performance. The performance of the flux directly affects the quality of electronic products. The soldering flux in the prior art is unsafe and inconvenient to use during the actual soldering process. At the same time, due to the high temperature and high pressure environment during welding, the toxic substances c...

Claims

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Application Information

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IPC IPC(8): B23K35/363
CPCB23K35/3613B23K35/362
Inventor 谭钰良
Owner 乐星汽车电子(青岛)有限公司