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Electrical appliance cleaner and preparation thereof

A cleaning agent and electrical appliance technology, applied in the field of electrical appliance cleaning agent and its preparation, to achieve strong penetration and decomposition ability, reduce the generation of moisture in the coil, and use safe effects.

Active Publication Date: 2009-09-23
SHANGHAI JIUSHENG IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The first technical problem to be solved by the present invention is to provide a cleaning agent for electrical appliances with high safety and strong cleaning ability, so as to solve the many shortcomings of existing cleaning agents for electrical appliances

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Example 1: Effects of compounding tetrachlorethylene and dichloromethane in different proportions on detergency. (mass fraction%)

[0030] Experiment method: Use 2 parts of hydraulic oil, 1 part of Vaseline, 1 part of sodium petroleum sulfonate, and 1 part of carbon powder to prepare artificial oil stains, and apply them to 6 relay coils, and apply 20 grams of oil stains to each coil. Put it in an oven at 50 degrees Celsius for 1 hour, take it out after drying, and immerse it in the compound test solution of tetrachloroethylene and dichloromethane in Table 1 for 20 minutes at room temperature, and dry it with a pharmaceutical balance to calculate the value of detergency.

[0031] Table 1: Compound solution of tetrachlorethylene and dichloromethane

[0032] Tetrachloroethylene / Dichloromethane

[0033] 60g / 30g

[0034] It can be seen from Table 1 that as the content of dichloromethane increases, the detergency is significantly improved, but when the p...

Embodiment 2

[0035] Example 2: The addition of raw material F141B (monofluorodichloroethane) affects the volatility of the product.

[0036] Experimental method: Prepare 6 groups of solutions with the content of F141B as 0%, 5%, 10%, 15%, 20%, and 25%. Divide 18 pieces of coil cooling steel sheets into 6 groups, 3 pieces in each group, and immerse them in the 6 groups of electrical cleaning agent solutions in Table 2. After it is completely wet, take it out in groups, hang it to dry at room temperature 25 degrees Celsius, calculate the average time from taking it out to completely dry, and use it as a reference value for product volatility:

[0037] Table 2

[0038] Tetrachloroethylene / Dichloromethane

/ F141B

1# steel

piece

2# steel

piece

3# steel

piece

average drying

dry time

60g / 30g / 0g

8mim

7mim

8mim

8mim

60g / 30g / 5g

6mim

6mim

6mim

6mim

60g / 30g / 10g

4mim

4mim

4mim

...

Embodiment 3

[0048] Embodiment 3: Screening of various charged cleaning agent test formulas

[0049] The formula components of conventional electrical cleaning agent and electrical cleaning agent of the present invention are shown in Table 3, and each component of Table 3 is mass fraction %, and formula 1,2,4 are comparative examples in Table 3, and formula 3 is experiment of the present invention example.

[0050] table 3

[0051]

composition

formula

1

formula

2

formula

3

formula

4

The role of raw materials in the formula

use

Dichloropentafluoropropane

99.5

70

-

-

highly volatile solvents

Simethicone

0.5

-

-

-

Generate anti-corrosion on the surface of the material

water protection film

Trichloroethane

-

15

-

17

cleaning solvent

Dichlorofluoropropane

-

15

-

-

hi...

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PUM

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Abstract

The invention discloses an electrical appliance cleaner, which selects comparatively safe methylen chloride, perchloroethylene, F141B to be constituents. Perchloroethylene has high KB value and strong decontaminating and degreasing ability, can form a layer of waterproof protecting film on the surface of material before full volatilization to prevent water vapour from accumulating, and can be used as the cleaner of the invention. F141B has very strong volatility, which can be used for adjusting the volatility of the product. Methylen chloride also has volatility, decontaminating ability and excellent permeability, which is used for improving the resultant force of the product. The electrical appliance cleaner of the invention is safe in use without flash point or fire point, does not burn while encountering with open fire; the electrical appliance cleaner can replace gasoline, xylene and other flammable organic solvents; the electrical appliance cleaner has no obvious effect on vast majority of plastics, rubber and other high molecular compounds.

Description

technical field [0001] The invention relates to the technical field of cleaning agents, in particular to an electrical appliance cleaning agent for cleaning electrical equipment such as generators, power distribution switch cabinets, power distribution and transformation equipment, electric welding machines, and electric tools, and a preparation method thereof. The cleaning agent for electrical appliances of the present invention can also be used for degreasing and degreasing treatment of mechanical equipment and various parts, such as cleaning of hydraulic cylinders, filters, gear boxes, bearings, etc. Background technique [0002] After long-term operation, various pollutants will gradually accumulate on the outer insulating surface of various power equipment such as power generation equipment, substation equipment, and electric tools, which will reduce the insulation performance of the equipment, cause poor heat dissipation of the equipment, aging of the equipment, decline...

Claims

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Application Information

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IPC IPC(8): C11D3/44C11D3/24
Inventor 朱荣龙蔡林森张铮
Owner SHANGHAI JIUSHENG IND
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