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A special acid cleaning agent for stainless steel and its preparation method and application

An acid cleaning agent and stainless steel technology, which is applied in the field of stainless steel cleaning, can solve the problems of low production efficiency, high equipment corrosion scrap rate, serious environmental pollution, etc., and achieve the effect of improving production efficiency and simplifying the cleaning process

Active Publication Date: 2019-03-26
中山市浩科化工科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such a cleaning process is complicated and cumbersome, and the production efficiency is low
[0003] At present, when degreasing and degreasing stainless steel, inorganic acids such as hydrochloric acid, sulfuric acid, nitric acid, phosphoric acid, hydrofluoric acid and other strong corrosive acids are used as cleaning components, which are easy to cause corrosion to workpieces, high corrosion scrap rate of equipment, and serious environmental pollution.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] (1) Preparation of cleaning agent: Add 15% citric acid, 3% succinic acid, and 2% oxalic acid into pure water at 80°C, stir for 20 minutes; then cool down to 65°C, and add 1% sulfur accordingly Urea, 5% HEDP, 3% OP-10, 2% fast penetrating agent T, 2% secondary alcohol polyoxyethylene ether, fully stirred at constant temperature for 1 hour; after standing still and filtering, light yellow transparent Liquid, that is to prepare the cleaning agent of the present invention.

[0030] (2) Take 500mL of the cleaning agent of this embodiment and add it to a 10L small-scale ultrasonic cleaner, add water to make a cleaning solution with a cleaning agent mass concentration of 5%, heat it to 58°C, and then place a piece of 50mm prepared in advance Put the polished sus304 stainless steel sheet of ×50mm into the ultrasonic cleaner, ultrasonically clean it at 28kHz for 5 minutes, take out the steel sheet, rinse it with tap water, dry it, and clean the oil and wax on the surface of the ...

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PUM

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Abstract

The invention relates to an acidic cleaning agent special for stainless steel and a preparation method and application thereof. The cleaning agent is formed by mixing the following raw materials, by mass, of 15%-20% of organic acid, 4.5%-5.5% of etidronic acid, 0.5%-1.5% of thiocarbamide, 2.5%-3.5% of polyoxyethylene octylphenol ether-10, 1.5%-2.5% of sodium diethylhexyl sulfosuccinate, 1.5%-2.5% of secondary alcohol ethoxylate and the balance pure water. The organic acid is composed of citric acid, succinic acid and oxalic acid. Through collaborative compound of the three citric acid, the succinic acid and the oxalic acid, the acidic cleaning agent has good oil removing and wax removing effects. Uniform film forming of water is achieved on the surface of the stainless steel. The surface of the cleaned stainless steel is free from watermarks, the stainless steel cleaning working procedure is simplified, and the production efficiency is improved.

Description

technical field [0001] The invention relates to the field of stainless steel cleaning, in particular to a special acid cleaning agent for stainless steel and its preparation method and application. Background technique [0002] During the processing of stainless steel workpieces, oil, wax and other pollutants will inevitably be stained on the surface. In order to make the surface of stainless steel workpieces bright and mirror-like, it is necessary to polish and polish the stainless steel. Usually, multiple processes such as degreasing, wax removal, and dewatering of the workpiece are required to achieve the desired effect. Such a cleaning procedure is complex and cumbersome, and the production efficiency is low. [0003] At present, when degreasing and degreasing stainless steel, inorganic acids such as hydrochloric acid, sulfuric acid, nitric acid, phosphoric acid, hydrofluoric acid and other strong corrosive acids are used as cleaning components, which are easy to cause ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23G1/08
CPCC23G1/088
Inventor 胡美玉王满国
Owner 中山市浩科化工科技有限公司
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