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Surface cleaning method of metal parts and water-based cleaning agent used

A water-based cleaning agent and surface cleaning technology, applied in the field of metal surface treatment, can solve the problems of economic loss, shortened service life of equipment, large surface corrosion of parts, etc., and achieve less environmental pollution, less corrosion, and good oil removal effect. Effect

Active Publication Date: 2018-06-08
辽宁吉锋实业有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The cleaning of metal equipment has gone through the stages of manual cleaning, physical cleaning (such as high pressure cleaning, steel ball thrust cleaning) and traditional chemical cleaning. These cleaning methods have poor effects and are very prone to corrosion and damage to metal pipelines and screens situation, shorten the service life of the equipment, and cause huge economic losses
[0004] The problems of the current chemical cleaning agents include: greater environmental pollution, greater corrosion on the surface of the workpiece, and poor degreasing effect, especially not suitable for heavy metals and light metals at the same time

Method used

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  • Surface cleaning method of metal parts and water-based cleaning agent used
  • Surface cleaning method of metal parts and water-based cleaning agent used
  • Surface cleaning method of metal parts and water-based cleaning agent used

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1）

[0019] In this embodiment, the stainless steel sheet sample A is cleaned.

[0020] The photo of the optical mirror microscope on the surface of the stainless steel sheet sample A before cleaning is shown in figure 1 .

[0021] Pretreat the stainless steel sheet sample A before cleaning: weigh the stainless steel sheet sample A before pretreatment, denoted as P 1 Then this stainless steel sheet sample A is submerged in artificial oil and carries out pretreatment, takes out and weighs again after drying, denoted as P 2 .

[0022] The specific cleaning method is as follows:

[0023] ①Put the beaker filled with water-based cleaning agent into the ultrasonic cleaner and heat up to 50°C;

[0024] The water-based cleaning agent is an aqueous solution composed of the following concentrations of components: sodium hydroxide 2g / L, sodium nitrate 3g / L, sodium tripolyphosphate 2g / L, fatty alcohol polyoxyethylene ether 0.6g / L, Sodium lauryl sulfate 0.5g / L, ethylenediaminetetraacetic a...

Embodiment 2）

[0029] This embodiment is to clean the stainless steel sheet sample B according to the method of embodiment 1.

[0030] The water-based cleaning agent of the present embodiment is an aqueous solution composed of components of the following concentrations: sodium hydroxide 3g / L, sodium nitrate 4g / L, sodium tripolyphosphate 3g / L, fatty alcohol polyoxyethylene ether 0.4g / L L, sodium lauryl sulfate 0.3g / L, ethylenediaminetetraacetic acid 0.02g / L, nonylphenol polyoxyethylene ether 2g / L, coconut oil fatty acid 2g / L.

Embodiment 3）

[0042] In this embodiment, the aluminum alloy sheet sample C is cleaned.

[0043] The photo of the optical mirror microscope on the surface of the aluminum alloy sheet sample C before cleaning is shown in image 3 .

[0044] Pretreat the aluminum alloy sheet sample C before cleaning: weigh the aluminum alloy sheet sample C before pretreatment, denoted as P 1 Then this aluminum alloy sheet sample C is submerged in artificial oil and carries out pretreatment, takes out and weighs again after drying, denoted as P 2 .

[0045] The specific cleaning method is as follows:

[0046] ①Put the beaker filled with water-based cleaning agent into the ultrasonic cleaner and heat up to 60°C;

[0047] The water-based cleaning agent is an aqueous solution composed of the following concentrations of components: sodium hydroxide 2g / L, sodium nitrate 3g / L, sodium tripolyphosphate 2g / L, fatty alcohol polyoxyethylene ether 0.6g / L, Sodium lauryl sulfate 0.5g / L, ethylenediaminetetraacetic acid 0...

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PUM

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Abstract

The invention discloses a method for cleaning the surface of metal parts and a water-based cleaning agent used therefor. The water-based cleaning agent is an aqueous solution composed of the following components: sodium hydroxide 1-10 g / L, sodium nitrate 1 ~10g / L, sodium tripolyphosphate 1~10g / L, fatty alcohol polyoxyethylene ether 0.1~3g / L, sodium lauryl sulfate 0.1~3g / L, ethylenediaminetetraacetic acid 0.01~3g / L, Nonylphenol polyoxyethylene ether 1-5g / L, coconut oil fatty acid 1-5g / L. The water-based cleaning agent of the present invention not only has a good degreasing effect, but also has less corrosion on the surface of the workpiece, and at the same time, the residual liquid after cleaning has less pollution to the environment, and is especially applicable to heavy metals such as stainless steel and aluminum alloys at the same time. and other light metals.

Description

technical field [0001] The invention belongs to the technical field of metal surface treatment, and in particular relates to a method for cleaning the surface of metal parts and a water-based cleaning agent used therefor. Background technique [0002] In iron and steel, chemical industry, electric power, light textile, food, pharmaceutical and other industries, during the production and operation of important equipment such as reverse osmosis equipment, heat exchangers, condensers, and filters, dirt often accumulates due to water quality and temperature changes. This phenomenon will have a serious impact on the filtration and heat exchange effects of the equipment, leading to serious consequences. Reasonable and effective cleaning of these equipment has practical significance. [0003] The cleaning of metal equipment has gone through the stages of manual cleaning, physical cleaning (such as high pressure cleaning, steel ball thrust cleaning) and traditional chemical cleanin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23G1/14
Inventor 马迪李树白徐龙贵耿昌进
Owner 辽宁吉锋实业有限公司