Precision electronic device on-line detergent and its production method

A precision electronics and production method technology, applied in the field of cleaning agents, can solve problems such as difficult to clean, easy to cause man-made faults, changes in dielectric constant and loss coefficient, etc., to achieve high cleaning power and reduce the risk of leakage

Inactive Publication Date: 2006-12-27
深圳市华晟科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. The hazards of deposited dirt: various dust, smog, organic matter and other pollutants in the air will condense on the circuit board with the air flow and the influence of static electricity, and absorb the moisture in the air on the electronic components and circuit boards of electrical appliances The accumulation of pollutants can cause the circuit to change or terminate the normal signal transmission function, resulting in circuit failure or even interruption, causing major losses
[0004] 2. The harm of static electricity: Electronic equipment will be harmed by cumulative static electricity and charged particles in the working environment. Electrostatic discharge will cause breakdown or performance deterioration of components, especially in high temperature and humid environments, and leakage will occur, even Circuit short circuit, dielectric constant and loss coefficient change, resulting in circuit failure, communication interruption, information loss and other losses
[0007] The traditional cleani

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Take 60kg of dichloropentafluoropropane, 20kg of 1,1,1-trichloroethane and 20kg of dichlorofluoroethane, put them into a closed reaction vessel, stir and react at 60°C under normal pressure for 1 hour. be made of.

Embodiment 2

[0031] Take 80kg of dichloropentafluoropropane, 10kg of 1,1,1-trichloroethane, 7kg of dichlorofluoroethane, and 3kg of trichloromethane, put them into a closed reaction vessel, and put them under normal pressure at 80°C It was prepared after stirring for 1 hour.

Embodiment 3

[0033] Get 75kg of dichloropentafluoropropane, 10kg of 1,1,1-trichloroethane, 10kg of dichlorofluoroethane, 4.5kg of chloroform, 0.5kg of nonylphenol polyoxyethylene ether, pack Put it into a closed reaction vessel, stir and react at 70°C under normal pressure for 1 hour.

[0034] The method of using this cleaning agent is: use a special aerosol can to hold it, spray the spray gun within 15-20cm from the cleaning object, and add an extended nozzle to clean the gap.

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PUM

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Abstract

The invention relates the cleaning agent and preparing method. The cleaning agent comprises 60-80% dichloropropane, 5-20% methylchloro-form and 5-20% difluo-monochloroethane. The cleaning agent has the advantages of good cleaning effect, non remain, and good insulativity. The cleaning agent has good withstand voltage, and the pressure resistance value is 25kv. The cleaning agent solves the problem that moisture coagulated on the surface of substance.

Description

technical field [0001] The invention relates to a cleaning agent, especially a cleaning agent that can be used in an online (charged) state of electronic instruments, and also relates to a production method of the online cleaning agent for precision electronic instruments. Background technique [0002] Circuit boards and other components of precision electronic instruments are often damaged by static electricity and dirt during use and operation: [0003] 1. The hazards of deposited dirt: various dust, smog, organic matter and other pollutants in the air will condense on the circuit board with the air flow and the influence of static electricity, and absorb the moisture in the air on the electronic components and circuit boards of electrical appliances The accumulation of pollutants will cause the circuit to change or terminate the normal signal transmission function, resulting in circuit failure, and even cause interruption, resulting in major losses. [0004] 2. The harm ...

Claims

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Application Information

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IPC IPC(8): C11D7/30
Inventor 刘杰
Owner 深圳市华晟科技有限公司
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