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High-performance soldering flux

A flux and high-performance technology, applied in the direction of welding medium, welding equipment, welding/cutting medium/material, etc., can solve the problems of difficult cleaning, poor activity, and many residues after welding, so as to reduce corrosion performance and improve Wetting ability, effect of improving welding effect

Active Publication Date: 2015-03-25
TIANCHANG FEILONG BRAND STEEL GRID
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the existing fluxes contain halides, the activity is not good, there are many residues after soldering, and it is difficult to clean

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] The high-performance flux of the present invention, its raw material comprises the following components by weight: 3 parts of citric acid, 6 parts of glutaric acid, 2 parts of triisopropanolamine, 3 parts of triethanolamine, 12 parts of modified rosin, surface 2 parts of active agent, 0.3 parts of benzotriazole, 2.8 parts of nano-silver, 0.2 parts of nano-titanium, 0.5 parts of benzimidazole, 2 parts of diethylene glycol ether, 8 parts of nitroethane, glyceryl monostearate 1 part, 4.5 parts of pentaerythritol oleate, 0.3 parts of dodecanedibasic acid, 0.9 parts of polyamide-modified hydrogenated castor oil, 0.3 parts of polyethylene glycol, 50 parts of ethanol, and 300 parts of water.

Embodiment 2

[0017] The high-performance flux of the present invention, its raw material comprises the following components by weight: 8 parts of citric acid, 2 parts of glutaric acid, 6 parts of triisopropanolamine, 1 part of triethanolamine, 25 parts of modified rosin, surface 0.8 parts of active agent, 0.8 parts of benzotriazole, 1 part of nano-silver, 0.9 part of nano-titanium, 0.1 part of benzimidazole, 7 parts of diethylene glycol ether, 3 parts of nitroethane, glyceryl monostearate 5 parts, 2 parts of pentaerythritol oleate, 1 part of dodecanedibasic acid, 0.3 parts of polyamide modified hydrogenated castor oil, 2 parts of polyethylene glycol, 120 parts of ethanol, 200 parts of water;

[0018] Wherein, the modified rosin is a combination of rosin ester and rosin amine in the ratio of 2:3 parts by weight; the surfactant is fatty alcohol polyoxyethylene ether sodium sulfate; the average particle diameter of the nano-silver is 65nm; The average particle size of the nano-titanium is 70n...

Embodiment 3

[0020] The high-performance flux of the present invention, its raw material comprises the following components by weight: 7 parts of citric acid, 4.6 parts of glutaric acid, 3.4 parts of triisopropanolamine, 1.8 parts of triethanolamine, 18 parts of rosin polyacid, surface Active agent 1.26 parts, benzotriazole 0.63 parts, nano-silver 2.6 parts, nano-titanium 0.67 parts, benzimidazole 0.3 parts, diethylene glycol ethyl ether 6.2 parts, nitroethane 5 parts, glyceryl monostearate 3.8 parts, 3.8 parts of pentaerythritol oleate, 0.64 parts of dodecanedibasic acid, 0.52 parts of polyamide modified hydrogenated castor oil, 0.94 parts of polyethylene glycol, 108 parts of ethanol, 263 parts of water;

[0021] Wherein, the surfactant is a combination of sodium branched alkylbenzene sulfonate and fatty alcohol polyoxyethylene ether in a ratio of 1:3 parts by weight; the average particle diameter of the nano-silver is 40nm; the nano-titanium The average particle diameter is 100 nm.

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Abstract

The invention discloses a high-performance soldering flux. The high-performance soldering flux comprises the following ingredients in parts by weight: 3-8 parts of citric acid, 2-6 parts of glutaric acid, 2-6 parts of triisopropanolamine, 1-3 parts of triethanolamine, 12-25 parts of modified rosin, 0.8-2 parts of surfactant, 0.3-0.8 part of benzotriazole, 1-2.8 parts of nano-silver, 0.2-0.9 part of nano-titanium, 0.1-0.5 part of benzimidazole, 2-7 parts of 2-(2-Ethoxyethoxy)ethanol, 3-8 parts of nitroethane, 1-5 parts of glycerin monostearate, 2-4.5 parts of pentaerythritol oleate, 0.3-1 part of dodecanedioic acid, 0.3-0.9 part of polyamide modified hydrogenated castor oil, 0.3-2 parts of polyethylene glycol, 50-120 parts of ethyl alcohol and 200-300 parts of water. The high-performance soldering flux is high in activity, excellent in soldering performance and easy to clean; little residues are generated after the high-performance soldering flux is used.

Description

technical field [0001] The invention relates to the technical field of metal processing aids, in particular to a high-performance soldering flux. Background technique [0002] Flux helps and promotes the welding process in the welding process. Its main functions include assisting heat conduction, removing oxides, reducing the surface tension of the material to be welded, removing oil on the surface of the material to be welded, increasing the welding area, and preventing re-oxidation. In these aspects, the key is to remove oxides and reduce the surface tension of the material to be welded. The quality of flux performance directly affects the quality of electronic products. At present, most of the existing fluxes contain halides, which have poor activity, many residues after soldering, and difficult cleaning. Contents of the invention [0003] The invention provides a high-performance soldering flux, which has high activity, excellent soldering performance, less residue a...

Claims

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Application Information

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IPC IPC(8): B23K35/362
CPCB23K35/362
Inventor 孙长志
Owner TIANCHANG FEILONG BRAND STEEL GRID
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