Environment-friendly soldering paste

A solder paste, environmentally friendly technology, applied in welding media, welding equipment, welding/cutting media/materials, etc., can solve the problems of increasing welding effect, halogen health hazards, easy to cause pollution, etc., to achieve good weldability, after welding Less residue and easy cleaning

Inactive Publication Date: 2015-09-23
QINGDAO WENSHENG AUTOMOBILE COMPONENTS & PARTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Not environmentally friendly, easy to cause pollution
At the same time, the halogen compound contained in the flux, one of the main comp

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] An environment-friendly solder paste, which is made from the following raw materials in parts by weight:

[0010] 3 parts of rosin, 6 parts of ethyl acetate, 7 parts of turpentine, 1 part of antioxidant, 3 parts of organic acid active agent, 2.5 parts of diethylene glycol monohexyl ether, 0.5 parts of magnesium, 5 parts of sebacic acid, benzotri 4 parts of oxazole, 7.5 parts of glutaric acid, 1 part of ethylamine hydrochloride, 4 parts of o-fluorobenzoic acid, 8 parts of dioctyl phthalate, 7 parts of modified hydrogenated castor oil, 6 parts of alkylphenol polyoxyethylene ether parts, alloy solder powder 3 parts.

Embodiment 2

[0012] An environment-friendly solder paste, which is made from the following raw materials in parts by weight:

[0013] 9 parts of rosin, 9 parts of ethyl acetate, 9 parts of turpentine, 4 parts of antioxidant, 9 parts of organic acid active agent, 6 parts of diethylene glycol monohexyl ether, 2 parts of magnesium, 8 parts of sebacic acid, benzotri 7 parts of nitrogen azole, 9 parts of glutaric acid, 2 parts of ethylamine hydrochloride, 9 parts of o-fluorobenzoic acid, 10 parts of dioctyl phthalate, 8 parts of modified hydrogenated castor oil, 8 parts of alkylphenol polyoxyethylene ether parts, alloy solder powder 8 parts.

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PUM

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Abstract

An environment-friendly soldering paste is made from the following raw materials, by weight, 3-9 parts of rosin, 6-9 parts of ethyl acetate, 7-9 parts of turpentine, 1-4 parts of antioxidants, 3-9 parts of organic acid active agents, 2.5-6 parts of diethylene glycol monohexyl ether, 0.5-2 parts of magnesium, 5-8 parts of sebacic acid, 4-7 parts of benzotriazole, 7.5-9 parts of glutaric acid, 1-2 parts of ethylamine hydrochloride, 4-9 parts of fluorobenzoic acid, 8-10 parts of dioctyl phthalate, 7-8 parts of modified hydrogenated castor oil, 6-8 parts of alkylphenol ethoxylates and 3-8 parts of alloy soldering powder. The environment-friendly soldering paste has the advantages that the environment-friendly soldering paste is free of toxicity and environmentally friendly, meanwhile, welding performance can be well improved, residues are few after welding, and washing is easy; the environment-friendly soldering paste is widely applied to high-precision electronic components.

Description

technical field [0001] The invention relates to an environment-friendly solder paste. Background technique [0002] Flux paste appeared in the surface mount technology (SurfaceMountAssembly, referred to as [0003] SMT), refers to printing and coating solder paste on the pads of the printed circuit board, and accurately attaching surface mount components to the pads coated with solder paste. Traditional solder paste products are composed of tin-lead-tin powder and flux mixture. With the advancement of technology in recent years, lead-free tin powder has gradually replaced tin-lead tin powder, making it more environmentally friendly. The flux used as a carrier medium generally consists of resins, activators, thixotropic agents, solvents and additives. Not environmentally friendly enough, easy to cause pollution. At the same time, the halogen compound contained in the flux, one of the main components of solder paste, plays a role in increasing the soldering effect, and the...

Claims

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Application Information

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IPC IPC(8): B23K35/362
CPCB23K35/025B23K35/3612B23K35/3613B23K35/362
Inventor 吕玲霞
Owner QINGDAO WENSHENG AUTOMOBILE COMPONENTS & PARTS
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