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Cleaning method for aluminum parts

A technology of parts and neutral cleaning agent, which is applied in the field of metal material cleaning, can solve the problems that the cleaning effect is difficult to meet the application requirements of aluminum alloy materials, metal foreign matter residues, etc., and achieve the effect of easy realization and simple process

Inactive Publication Date: 2019-10-29
STATE GRID CORP OF CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the cleaning process of the aluminum alloy material can improve the efficiency of parts cleaning, the metal foreign matter on the surface of the aluminum alloy still remains, and the cleaning effect is difficult to meet the needs of the application of the aluminum alloy material in high-voltage electrical appliances

Method used

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  • Cleaning method for aluminum parts
  • Cleaning method for aluminum parts
  • Cleaning method for aluminum parts

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] The cleaning method of the aluminum parts of the present embodiment is an example of a mirror polished 1060 pure aluminum spinning formed part, comprising the following steps:

[0045] 1) Degreasing treatment

[0046] Clean the aluminum parts to be treated with a degreasing agent at 60°C for 2 minutes. During the cleaning process, swing the aluminum parts up and down 2 to 3 times to effectively remove the oil in the inner cavity and blind hole of the aluminum parts;

[0047] The degreasing agent used is composed of sodium hydroxide, sodium carbonate, nonylphenol polyoxyethylene ether and water; the concentration of sodium oxide in the degreasing agent is 8g / L, the concentration of sodium carbonate is 30g / L, nonylphenol polyoxyethylene The concentration of vinyl ether is 15g / L;

[0048] 2) Ultrasonic cleaning

[0049] Clean the degreased aluminum parts with water, and then immerse them in a neutral cleaning agent to control the ultrasonic frequency to 40kHz and the pow...

Embodiment 2

[0059] The cleaning method of the aluminum parts of the present embodiment, taking common 1060 pure aluminum forging and pressing forming parts or forging forming parts as an example, comprises the following steps:

[0060] 1) Degreasing treatment

[0061] Clean the aluminum parts to be treated in a degreasing agent at 70°C for 1 min. During the cleaning process, swing the aluminum parts up and down 2 to 3 times to effectively remove the oil in the inner cavity and blind hole of the aluminum parts;

[0062] The degreasing agent used is composed of sodium hydroxide, sodium carbonate, nonylphenol polyoxyethylene ether and water; the concentration of sodium oxide in the degreasing agent is 10g / L, the concentration of sodium carbonate is 25g / L, nonylphenol polyoxyethylene The concentration of vinyl ether is 12.5g / L;

[0063] 2) Ultrasonic cleaning

[0064] Clean the degreased aluminum parts with water, and then immerse them in a neutral cleaning agent to control the ultrasonic f...

Embodiment 3

[0074] The cleaning method of aluminum parts in this embodiment is an example of an aluminum-silicon-magnesium cast alloy part (the mass percentage of magnesium in the aluminum-silicon-magnesium cast alloy is 0.45-0.6%, and the mass percentage of silicon is 6.5-7.5%) , including the following steps:

[0075] 1) Degreasing treatment

[0076] Clean the aluminum parts to be treated in a degreasing agent at 65°C for 2 minutes. During the cleaning process, swing the aluminum parts up and down 2 to 3 times to effectively remove the oil in the inner cavity and blind hole of the aluminum parts;

[0077] The degreasing agent used is composed of sodium hydroxide, sodium carbonate, nonylphenol polyoxyethylene ether and water; the concentration of sodium oxide in the degreasing agent is 6g / L, the concentration of sodium carbonate is 30g / L, nonylphenol polyoxyethylene The concentration of vinyl ether is 10g / L;

[0078] 2) Ultrasonic cleaning

[0079] Clean the degreased aluminum parts w...

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Abstract

The invention relates to a cleaning method for aluminum parts and belongs to the technical field of metal material cleaning. The method comprises the following steps: carrying out degreasing treatmenton the aluminum parts, then carrying out alkaline cleaning for 0.5 to 20 minutes by adopting an alkali etching agent with the temperature of 60 to 70 DEG C, carrying out acid pickling to remove ash and finally washing, wherein the alkali etching agent is mainly a mixed solution consisting of alkali metal hydroxide, alkali metal carbonate, alkali metal phosphate and solvent; the concentration of the alkali metal hydroxide in the mixed solution is 10 to 15 g / L, the concentration of the alkali metal carbonate is 20 to 30 g / L and the alkali metal phosphate is 50 to 70 g / L. The aluminum parts treated by adopting the method disclosed by the invention are stuck by adopting a 3M adhesive tape to remove adhered foreign matters such as metal wires and metal filings; the method is particularly suitable for removing the foreign matters on the surfaces of the aluminum parts of high-voltage electrical apparatuses; and the problems that machined and formed parts retain a large amount of foreign matters and easily discharge are solved.

Description

technical field [0001] The invention relates to a cleaning method for aluminum parts, belonging to the technical field of metal material cleaning. Background technique [0002] In the manufacturing process of power transmission and transformation equipment in the power system, it is inevitable to produce metal wires and metal shavings during machining, and these metal wires, metal shavings and other foreign objects may be broken down in the electric field during the electrification process and cause discharge. Danger. [0003] In order to improve the surface quality of the internal shielding parts, the parts are usually manually polished and then wiped. This method has low production efficiency, serious pollution, and high labor intensity. Metal shavings. In the prior art, a Chinese invention patent application with the application publication number CN103806008A discloses a cleaning process for aluminum alloy materials. The steps are: oil seal removal; water washing; chem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23F1/36
CPCC23F1/36
Inventor 李晓征沈晓路亚娟王战辉雪金海王斌李梦娜王文喆赵江涛王婷娄金刚王香玉刘翠翠杨晓涵温龙飞
Owner STATE GRID CORP OF CHINA
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