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Micro-emulsion cleaning agent for welding jigs

A welding fixture and microemulsion technology, applied in the field of cleaning agents, can solve the problems of cleaning agent failure, difficulty in rinsing, poor cleaning ability, etc., and achieve the effects of enhanced cleaning ability, good dissolution effect, and excellent compatibility

Active Publication Date: 2014-12-10
深圳市唯特偶新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of cleaning agent has poor cleaning ability and requires a long cleaning time, and propylene glycol methyl ether acetate will be hydrolyzed after long-term storage in an alkaline system, resulting in the failure of the cleaning agent
In Chinese patent CN101531951, strong alkali sodium hydroxide is used as saponification agent. This type of cleaning agent has achieved a satisfactory cleaning effect, but strong alkali is easy to burn hands and is not easy to rinse clean. When the residual strong alkali contacts the components on the PCB, it is extremely It is easy to cause corrosion and leakage, thus affecting the electrical safety of the product

Method used

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  • Micro-emulsion cleaning agent for welding jigs
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  • Micro-emulsion cleaning agent for welding jigs

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preparation example Construction

[0029] The preparation method of the above-mentioned microemulsion cleaning agent for welding jig comprises the following steps:

[0030] Step 1: Add the polymer stabilizer, 2-ethylhexanol polyoxyethylene polyoxypropylene ether, terpene and propylene glycol ether solvent into the reactor according to the above-mentioned weight percentages and then stir, and the stirring time is 10- For 15 minutes, the stirring speed is 50-65 rev / min to obtain mixed solution A;

[0031] Step 2: adding the saponification agent and water to another reactor according to the above-mentioned weight percentages, and stirring for 5-8min at a stirring speed of 60-80 rev / min to obtain mixed solution B;

[0032] Step 3: Pour the above mixed solution B into the reaction kettle containing the mixed solution A according to the above ratio and stir, stir for 30-40 minutes, and the stirring speed is 50-65 r / min, to obtain the welding jig of the present invention. Emulsion cleaner.

[0033] Microemulsion is ...

Embodiment 1

[0042] The present embodiment provides a microemulsion cleaning agent for a welding jig, which is composed of the following components by weight:

[0043]

[0044] The preparation method of the above-mentioned microemulsion cleaning agent for welding jig is as follows: polyvinylpyrrolidone, 2-ethylhexyl alcohol polyoxyethylene polyoxypropylene ether, limonene and propylene glycol ethyl ether are sequentially added to the reaction kettle according to the above weight and then stirred, The stirring time was 10 minutes, and the stirring speed was 60 rev / min to obtain mixed solution A. Ethanolamine and water are successively added in another reactor according to the above-mentioned weight, and stirred for 8min under the stirring speed of 60 revs / min to obtain mixed solution B; the gained mixed solution B is poured into the reactor equipped with mixed solution A and stirred , and stirred for 30 minutes, and the stirring speed was 60 rpm to obtain the microemulsion cleaning agent...

Embodiment 2

[0050] This embodiment provides a microemulsion cleaning agent for a welding jig, which is composed of the following components by weight:

[0051]

[0052] The preparation method of the above-mentioned microemulsion cleaning agent for welding jig is as follows: polyvinylpyrrolidone, 2-ethylhexanol polyoxyethylene polyoxypropylene ether, limonene and dipropylene glycol ethyl ether are sequentially added to the reaction kettle according to the above weight and then stirred. , the stirring time is 12 minutes, and the stirring speed is 50 rpm to obtain the mixed solution A. Ethanolamine and water are successively added in another reactor according to the above-mentioned weight, and stirred for 7min under the stirring speed of 70 revs / min to obtain mixed solution B; the gained mixed solution B is poured into the reactor equipped with mixed solution A and stirred , and stirred for 35 minutes, and the stirring speed was 65 rpm to obtain the microemulsion cleaning agent for the we...

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Abstract

The invention provides a micro-emulsion cleaning agent for welding jigs. The micro-emulsion cleaning agent comprises the following components in percent by weight: 2-5 percent of polymer stabilizer, 1-8 percent of 2-ethyl hexanol polyoxyethylene polyoxypropylene ether, 0.5-5 percent of terpene, 5-12 percent of propylene glycol ether solvent, 1-5 percent of saponifier and 75-86 percent of water. The micro-emulsion cleaning agent provided by the invention has a good cleaning effect, low toxicity and less influence on environments, and is safe.

Description

technical field [0001] The invention relates to a cleaning agent, in particular to a microemulsion cleaning agent for welding fixtures. Background technique [0002] Welding fixture is a kind of tooling device commonly used in the electronics industry to carry and protect PCB and its components. It is widely used in various PCB welding (such as computer motherboards, home appliance motherboards, etc.). The welding fixture not only has the functions of preventing PCB deformation during the welding process, assisting support and positioning, but also improving the process and protecting components. In recent years, due to the needs of SMT assembly process, manufacturing cost and production efficiency, the use of welding jigs has become more and more common. [0003] During the soldering process, the PCB is placed on the soldering fixture, and the surface of the fixture is inevitably contaminated by flux residues during the soldering process. If these pollutants are not remov...

Claims

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Application Information

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IPC IPC(8): C11D3/37C11D3/60C11D1/722C11D3/18C11D3/20C11D17/00
Inventor 唐欣吴晶王勇泉刘竞曹建峰刘芳
Owner 深圳市唯特偶新材料股份有限公司
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