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Cleaning method for NTC thermistor of glass-sealed diode structure

A technology of glass-encapsulated diodes and thermistors, which is applied to cleaning methods using liquids, cleaning methods and utensils, chemical instruments and methods, etc., which can solve the pungent smell of white electric oil, pollution of soil and air, and potential safety hazards and other issues to achieve the effect of safe use, avoiding pollution and avoiding harm

Inactive Publication Date: 2017-06-16
QINGDAO XIANGZHI ELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

White electric oil has a good oil-dissolving effect and is widely used in industrial cleaning. However, white electric oil has a pungent smell, which is harmful to the body, pollutes the soil and the atmosphere, and is not conducive to environmental protection; white electric oil and alcohol are both flammable and explosive. products, there are safety hazards

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0016] 1) Mix 290g of tea seed powder with 199g of edible alkali and 95g of sodium phosphate to make a cleaning agent;

[0017] 2) Brew the mixture in step 1) with 4.5L of 80°C hot water, stir until completely dissolved, and then filter through a 120-mesh screen;

[0018] 3) Pour the filtered solution into an ultrasonic tank, adjust the ultrasonic frequency to 30kHz, and when the temperature of the solution is at 50°C, put 1,000 thermistors with a glass-sealed diode structure soaked in methyl silicone oil into it and start cleaning , wash for 5 minutes;

[0019] 4) After cleaning, rinse with tap water until the surface of the component is rinsed clean, and dry.

example 2

[0021] 1) Mix 300g of tea seed powder with 190g of edible alkali and 90g of sodium phosphate to make a cleaning agent;

[0022] 2) Brew the mixture in step 1) with 5.0L of hot water at 85°C, stir until completely dissolved, and then filter through a 120-mesh screen;

[0023] 3) Pour the filtered solution into an ultrasonic tank, adjust the ultrasonic frequency to 35kHz, and when the temperature of the solution is at 50°C, put 1,000 thermistors with a glass-sealed diode structure soaked in methyl silicone oil into it and start cleaning , wash for 7 minutes;

[0024] 4) After cleaning, rinse with tap water until the surface of the component is rinsed clean, and dry.

example 3

[0026] 1) Mix 310g of tea seed powder with 195g of edible alkali and 105g of sodium phosphate to make a cleaning agent;

[0027] 2) Brew the mixture in step 1) with 5.1L of hot water at 80°C, stir until completely dissolved, and then filter through a 120-mesh screen;

[0028] 3) Pour the filtered solution into the ultrasonic tank, adjust the ultrasonic frequency to 35kHz, and when the temperature of the solution is 55°C, put 1,000 thermistors with a glass-sealed diode structure soaked in methyl silicone oil into it and start cleaning , wash for 9 minutes;

[0029] 4) After cleaning, rinse with tap water until the surface of the component is rinsed clean, and dry.

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PUM

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Abstract

The invention relates to a cleaning method of an NTC thermistor with a glass-encapsulated diode structure. The cleaning agent is prepared by uniformly mixing 290-310g of tea seed powder, 190-210g of edible alkali and 90-110g of sodium phosphate; Brew with 4.5-5.5L of hot water, stir until completely dissolved, filter; pour into an ultrasonic tank, and start cleaning with ultrasonic waves at 50-60°C; rinse with water after cleaning, and dry. Tea seed powder is used as the main raw material in the cleaning agent of the present invention, which can produce foam, infiltrate and remove oil, and has a good oil removal effect; adding edible alkali and sodium phosphate can accelerate emulsification and penetration, and accelerate the cleaning process; use ultrasonic cleaning to strengthen the cleaning effect, Increase cleaning speed. After the tea seed powder adopted in the invention is brewed into a solution, it has a tea aroma and can be directly touched by hands, providing operators with a fragrant and safe operating environment and avoiding pollution to atmospheric soil and water bodies. The operating environment of the present invention is simpler, avoids accidents such as fires that may be caused by inflammable and explosive white oil and alcohol, and is safe to use.

Description

technical field [0001] The invention relates to a cleaning method for an NTC thermistor with a glass-sealed diode structure. Background technique [0002] The existing NTC thermistor with glass-sealed diode structure needs to be tested in methyl silicone oil. At present, the main cleaning method is to clean it in white electric oil, and then rinse it in alcohol. White electric oil has a good oil-dissolving effect and is widely used in industrial cleaning. However, white electric oil has a pungent smell, which is harmful to the body, pollutes the soil and the atmosphere, and is not conducive to environmental protection; white electric oil and alcohol are both flammable and explosive. products, there are potential safety hazards. Contents of the invention [0003] The object of the present invention is to aim at above-mentioned present situation, aims to provide a kind of cleaning method of NTC thermistor of glass-encapsulated diode structure that is harmless to human healt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B08B3/08B08B3/12
CPCB08B3/08B08B3/12
Inventor 李春花
Owner QINGDAO XIANGZHI ELECTRONICS TECH CO LTD
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