阅读说明：本技术 一种适用于清洗不锈钢板材工件的金属清洗剂 (Metal cleaning agent suitable for cleaning stainless steel plate workpiece ) 是由 王霞 于 2021-08-26 设计创作，主要内容包括：本发明涉及工业清洗剂技术领域,且公开了一种适用于清洗不锈钢板材工件的金属清洗剂,包括以下质量分数配比的原料：由纳米铁粉末和纳米二氧化钛粉末组成的混合清洗催化剂5～15％,硫酸0.5～1.5％,冰醋酸0.5～1.5％,柠檬酸8～12％,磷酸4～8％,尿素2％,咪唑啉2％,脂肪醇聚氧乙烯醚6％,醇醚羧酸盐6％,水余量；在本发明的清洗配方中掺入由纳米铁粉末和纳米二氧化钛粉末组成的混合清洗催化剂,在清洗不锈钢板材工件时,混合清洗催化剂材料被光激发出电子-空穴对,而吸附在不锈钢板材工件表面的油污的分子接受光生电子-空穴对,发生一系列氧化还原反应,使得清洗之后的不锈钢板材工件表面上油污去除清洗彻底且静置24h后不变色。(The invention relates to the technical field of industrial cleaning agents, and discloses a metal cleaning agent suitable for cleaning stainless steel plate workpieces, which comprises the following raw materials in parts by mass: 5-15% of a mixed cleaning catalyst consisting of nano iron powder and nano titanium dioxide powder, 0.5-1.5% of sulfuric acid, 0.5-1.5% of glacial acetic acid, 8-12% of citric acid, 4-8% of phosphoric acid, 2% of urea, 2% of imidazoline, 6% of fatty alcohol-polyoxyethylene ether, 6% of alcohol ether carboxylate and the balance of water; the mixed cleaning catalyst consisting of the nano iron powder and the nano titanium dioxide powder is doped in the cleaning formula, when the stainless steel plate workpiece is cleaned, the mixed cleaning catalyst material is excited by light to generate electron-hole pairs, and molecules of oil stains adsorbed on the surface of the stainless steel plate workpiece receive photo-generated electron-hole pairs to generate a series of oxidation reduction reactions, so that the oil stains on the surface of the cleaned stainless steel plate workpiece are removed and cleaned thoroughly, and the stainless steel plate workpiece does not change color after standing for 24 hours.)

1. The metal cleaning agent is suitable for cleaning stainless steel plate workpieces and is characterized by comprising the following raw materials in parts by mass: 5-15% of mixed cleaning catalyst consisting of nano iron powder and nano titanium dioxide powder, 0.5-1.5% of sulfuric acid, 0.5-1.5% of glacial acetic acid, 8-12% of citric acid, 4-8% of phosphoric acid, 2% of urea, 2% of imidazoline, 6% of fatty alcohol-polyoxyethylene ether, 6% of alcohol ether carboxylate and the balance of deionized water.

2. The metal cleaner for cleaning stainless steel plate workpieces as recited in claim 1, wherein the mixed cleaning catalyst comprises iron powder with an average particle size of less than or equal to 30nm and titanium dioxide powder with an average particle size of less than or equal to 10nm in percentage by mass.

3. The metal cleaning agent suitable for cleaning stainless steel plate workpieces as claimed in claim 2, wherein the mixed cleaning catalyst is prepared from 40-70% of iron powder with an average particle size of less than or equal to 30nm and 30-60% of titanium dioxide powder with an average particle size of less than or equal to 10nm in percentage by mass.

4. The metal cleaner for cleaning stainless steel plate workpieces as claimed in claim 3, wherein the application method of the metal cleaner comprises the following steps:

step one, immersing the metal cleaning agent into a deionized water solvent to prepare a working solution according to the cleaning agent;

soaking a cleaning piece into the working solution;

irradiating the working solution and the cleaning piece by adopting ultraviolet light;

and step four, cleaning the cleaning piece by using ultrasonic oscillation under the irradiation of ultraviolet light, taking out the workpiece, fully cleaning the workpiece by using deionized water, soaking the workpiece in the deionized water, and then drying the workpiece in an oven.

Technical Field

The invention relates to the technical field of industrial cleaning agents, in particular to a metal cleaning agent suitable for cleaning stainless steel plate workpieces.

Background

Metal cleaners are widely used in various fields of manufacturing and industrial processing, such as metal, glass, plastic, spray coating, etc. Although the surface properties of various workpieces to be cleaned are different, the cleaning purpose is consistent, namely, the cleaning of oil stains. At present, for stainless steel plate workpieces made of 201 and 202, dark or yellow oxide films appear on the surfaces after cleaning, and various common metal cleaning agents in the market are used.

The main reason of the problem is that the oil and wax removing component in the cleaning agent removes polishing wax, oil stain and oxidation film on the surface of the workpiece, and simultaneously, the acid radical ions and the like oxidize iron elements on the surface of the stainless steel workpiece, and the iron oxides are dark gray or yellowish. Secondly, the cleaning capacity of the cleaning agent is insufficient, and the original oil stains or oxides on the surface of the workpiece cannot be completely removed. And the stainless steel material has weak antirust performance, and is oxidized and corroded in the cleaning tank at the same time.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a metal cleaning agent suitable for cleaning stainless steel plate workpieces, so as to solve the technical problem of how to thoroughly remove the original oil stains or oxides on the surfaces of the workpieces.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme:

a metal cleaning agent suitable for cleaning stainless steel plate workpieces comprises the following raw materials in parts by mass: 5-15% of mixed cleaning catalyst consisting of nano iron powder and nano titanium dioxide powder, 0.5-1.5% of sulfuric acid, 0.5-1.5% of glacial acetic acid, 8-12% of citric acid, 4-8% of phosphoric acid, 2% of urea, 2% of imidazoline, 6% of fatty alcohol-polyoxyethylene ether, 6% of alcohol ether carboxylate and the balance of deionized water.

Furthermore, the mixed cleaning catalyst is composed of iron powder with the average grain diameter less than or equal to 30nm and titanium dioxide powder with the average grain diameter less than or equal to 10nm according to the mass fraction ratio.

Furthermore, the mixed cleaning catalyst is composed of 40-70% of iron powder with the average particle size of less than or equal to 30nm and 30-60% of titanium dioxide powder with the average particle size of less than or equal to 10nm in percentage by mass.

Further, the application method of the metal cleaning agent comprises the following steps:

step one, immersing the metal cleaning agent into a deionized water solvent to prepare a working solution according to the cleaning agent;

soaking a cleaning piece into the working solution;

irradiating the working solution and the cleaning piece by adopting ultraviolet light;

and step four, cleaning the cleaning piece by using ultrasonic oscillation under the irradiation of ultraviolet light, taking out the workpiece, fully cleaning the workpiece by using deionized water, soaking the workpiece in the deionized water, and then drying the workpiece in an oven.

(III) advantageous technical effects

Compared with the prior art, the invention has the following beneficial technical effects:

the mixed cleaning catalyst consisting of the nano iron powder and the nano titanium dioxide powder is doped in the cleaning formula, when a stainless steel plate workpiece is cleaned, when light with certain energy is used for irradiation, the mixed cleaning catalyst material is excited by light to generate electron-hole pairs, and molecules of oil stains adsorbed on the surface of the stainless steel plate workpiece receive photo-generated electron-hole pairs to perform a series of redox reactions, so that toxic and colored pollutants are degraded into substances with no toxicity or low toxicity, and the cleaned surface of the stainless steel plate workpiece is thoroughly cleaned and does not change color after standing for 24 hours.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The first embodiment is as follows:

a metal cleaning agent suitable for cleaning stainless steel plate workpieces comprises the following raw materials in parts by mass: 5% of mixed cleaning catalyst consisting of iron powder with the average particle size of less than or equal to 30nm and titanium dioxide powder with the average particle size of less than or equal to 10nm, 0.5% of sulfuric acid, 1.5% of glacial acetic acid, 8% of citric acid, 4% of phosphoric acid, 2% of urea, 2% of imidazoline, 6% of fatty alcohol-polyoxyethylene ether, 6% of alcohol ether carboxylate and the balance of deionized water;

wherein the mixed cleaning catalyst is composed of 50 percent of iron powder with the average grain diameter less than or equal to 30nm and 50 percent of titanium dioxide powder with the average grain diameter less than or equal to 10nm according to the mass fraction ratio;

the application method of the metal cleaning agent in cleaning the stainless steel plate workpiece comprises the following steps:

step one, immersing the metal cleaning agent into a deionized water solvent with the temperature of 50 ℃ to prepare a working solution with the mass fraction of the cleaning agent being 5%;

step two, taking a 201 stainless steel workpiece as a cleaning piece, immersing the cleaning piece into the working solution, and soaking for 15 min;

irradiating the working solution and the cleaning piece for 10min by adopting 600w ultraviolet light;

step four, oscillating and cleaning the cleaning piece by using ultrasonic waves (28kHz) for 8min under the irradiation of 600w of ultraviolet light, taking out the workpiece, fully cleaning the workpiece by using deionized water, soaking the workpiece in the deionized water at the temperature of more than 85 ℃ for about 30s, and then drying the workpiece in an oven at the temperature of 100 ℃ for about 5 min;

example two:

a metal cleaning agent suitable for cleaning stainless steel plate workpieces comprises the following raw materials in parts by mass: 10% of mixed cleaning catalyst consisting of iron powder with the average particle size of less than or equal to 10nm and titanium dioxide powder with the average particle size of less than or equal to 10nm, 1% of sulfuric acid, 1% of glacial acetic acid, 12% of citric acid, 6% of phosphoric acid, 2% of urea, 2% of imidazoline, 6% of fatty alcohol-polyoxyethylene ether, 6% of alcohol ether carboxylate and the balance of deionized water;

wherein the mixed cleaning catalyst is composed of 70 percent of iron powder with the average grain diameter less than or equal to 10nm and 30 percent of titanium dioxide powder with the average grain diameter less than or equal to 10nm according to the mass fraction ratio;

the application method of the metal cleaning agent in cleaning the stainless steel plate workpiece comprises the following steps:

step one, immersing the metal cleaning agent into a deionized water solvent with the temperature of 80 ℃ to prepare a working solution with the mass fraction of the cleaning agent being 10%;

step two, taking a 201 stainless steel workpiece as a cleaning piece, immersing the cleaning piece into the working solution, and soaking for 10 min;

irradiating the working solution and the cleaning piece for 15min by adopting 600w ultraviolet light;

step four, oscillating and cleaning the cleaning piece for 10min by using ultrasonic waves (28kHz) under the irradiation of 600w of ultraviolet light, taking out the workpiece, fully cleaning the workpiece by using deionized water, soaking the workpiece in the deionized water at the temperature of more than 85 ℃ for about 60s, and then drying the workpiece in an oven at the temperature of 100 ℃ for about 5 min;

example three:

a metal cleaning agent suitable for cleaning stainless steel plate workpieces comprises the following raw materials in parts by mass: 15% of mixed cleaning catalyst consisting of iron powder with the average particle size of less than or equal to 5nm and titanium dioxide powder with the average particle size of less than or equal to 10nm, 1.5% of sulfuric acid, 0.5% of glacial acetic acid, 10% of citric acid, 8% of phosphoric acid, 2% of urea, 2% of imidazoline, 6% of fatty alcohol-polyoxyethylene ether, 6% of alcohol ether carboxylate and the balance of deionized water;

wherein the mixed cleaning catalyst is composed of 40 percent of iron powder with the average grain diameter less than or equal to 5nm and 60 percent of titanium dioxide powder with the average grain diameter less than or equal to 10nm according to the mass fraction ratio;

the application method of the metal cleaning agent in cleaning the stainless steel plate workpiece comprises the following steps:

step one, immersing the metal cleaning agent into a deionized water solvent with the temperature of 60 ℃ to prepare a working solution with the mass fraction of the cleaning agent being 5%;

step two, taking a 201 stainless steel workpiece as a cleaning piece, immersing the cleaning piece into the working solution, and soaking for 5 min;

irradiating the working solution and the cleaning piece for 10min by adopting 600w ultraviolet light;

step four, oscillating and cleaning the cleaning piece for 10min by using ultrasonic waves (28kHz) under the irradiation of 600w of ultraviolet light, taking out the cleaning piece, fully cleaning the cleaning piece by using deionized water, soaking the cleaning piece in the deionized water at the temperature of more than 85 ℃ for about 60s, and then drying the cleaning piece in a drying oven at the temperature of 110 ℃ for about 10 min;

and (3) performance testing:

taking out the stainless steel plate workpiece after cleaning, immediately observing the surface condition, standing for 24h, and observing the change of the surface condition again;

evaluation of cleaning effect: taking the thorough degree of oil stain removal as a judgment standard, cleaning thoroughly, standing for 24h, and then changing color to be qualified, and the rest is unqualified;

and (3) testing results:

the first embodiment is as follows: the oil stain is removed and cleaned thoroughly, and the product is qualified after standing for 24 hours without color change;

example two: the oil stain is removed and cleaned thoroughly, and the product is qualified after standing for 24 hours without color change;

example three: the oil stain is removed and cleaned thoroughly, and the product is qualified after standing for 24 hours without color change;

although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.