An environmentally friendly graphite heavy oil and dirt cleaner suitable for aluminum alloy forming

Abstract

The present invention discloses an environment-friendly graphite heavy oil and grease cleaning agent suitable for aluminum alloy forming, which relates to the technical field of cleaning agents. The environment-friendly graphite heavy oil and grease cleaning agent suitable for aluminum alloy forming prepared by the present invention comprises the following components by mass percentage: 9-11% of a weak alkaline substance, 22-24% of deoiling microspheres, 2-4% of a corrosion inhibitor, 2-6% of an abrasive, and 55-65% of deionized water; the weak alkaline substance includes any one or a combination of at least two of diethylamine, triethylamine, ethanolamine, diethanolamine or dicyclohexylamine; the abrasive is 80-100 nm nano-silica; the corrosion inhibitor includes any one or a combination of at least two of thiourea, heterocyclic amine, sodium molybdate or sodium metasilicate; the deoiling microspheres are obtained by wrapping an oil-phase solution of 4-carboxybenzaldehyde with poly-N-isopropylacrylamide gel; the cleaning agent prepared by the present invention has good deoiling performance and good corrosion prevention performance.

Description

Technical Field

[0001] The present invention relates to the technical field of cleaning agents, and specifically to an environmentally friendly heavy oil and grease cleaning agent suitable for aluminum alloy forming graphite Background Art

[0002] Aluminum alloy die-castings, also called die-cast aluminum alloys, have advantages that cannot be compared with other processed parts, such as high dimensional accuracy, high production efficiency, excellent economic effects, etc., which makes them widely used in industry. In the process of aluminum alloy die-casting, in order to better separate the parts from the aluminum alloy forming graphite mold, it is usually necessary to spray a release agent and a large amount of lubricating oil on the inner cavity of the mold. As a result, after die-casting, a layer of release agent and a large amount of oil and grease are likely to remain on the surface of the aluminum alloy. These release agents and oil and grease not only adhere to the surface of the aluminum alloy, but some also penetrate into the pores generated by high temperature and high pressure during die-casting of the aluminum alloy. If these release agents and oil and grease are not removed, it will have a great impact on the subsequent processes and the quality of the product.

[0003] In order to thoroughly clean the release agent and oil and grease remaining on the surface of the aluminum alloy forming graphite mold and in the pores, currently, solvent-based cleaning agents with strong penetration are generally used in the market. Solvent-based cleaning agents are mainly composed of solvents such as chlorinated hydrocarbons, oxy-chlorinated hydrocarbons, hydrocarbons, and alcohols. Such cleaning agents have the advantages of strong penetration ability, good cleaning effect on non-polar dirt, and no need for rinsing, etc., but at the same time, they also have technical defects such as poor degreasing effect, easy corrosion of the mold surface, and poor anti-corrosion performance.

[0004] Therefore, the present invention solves these problems by preparing an environmentally friendly heavy oil and grease cleaning agent suitable for aluminum alloy forming graphite. Summary of the Invention

[0005] In order to solve the problems existing in the prior art, the present invention provides an environmentally friendly heavy oil and grease cleaning agent suitable for aluminum alloy forming graphite, which comprises the following components by mass percentage: 9 - 11% weak alkaline substance, 22 - 24% degreasing microspheres, 2 - 4% corrosion inhibitor, 2 - 6% abrasive, 55 - 65% deionized water.

[0006] Preferably or optionally, the weak alkaline substance includes any one or a combination of at least two of diethylamine, triethylamine, ethanolamine, diethanolamine, or dicyclohexylamine.

[0007] Preferably or optionally, the abrasive is nano-silica with a particle size of 80 - 100 nm.

[0008] Preferably or optionally, the corrosion inhibitor includes any one or a combination of at least two of thiourea, heterocyclic amine, sodium molybdate, or sodium metasilicate.

[0009] Preferably or optionally, the method for preparing the deoiling microspheres comprises: fixing the aqueous solution to a constant-speed stirrer under nitrogen protection, pumping the oil-phase solution into the aqueous solution with a peristaltic pump driver at a certain rotation speed and under nitrogen protection, adding an initiator, heating to 80-90 °C, and carrying out a polymerization reaction for 3.5-4.5 h, and then evacuating to obtain the deoiling microspheres.

[0010] Preferably or optionally, the method for preparing the aqueous solution comprises: mixing N,N'-methylenebisacrylamide, N-isopropylacrylamide, acrylic acid, and deionized water in a certain mass ratio, and stirring at 400-600 rpm for 20-40 min to obtain the aqueous solution.

[0011] Preferably or optionally, N,N'-methylenebisacrylamide, N-isopropylacrylamide, acrylic acid, and deionized water are mixed in a mass ratio of 1:3-5:1-3:6-10.

[0012] Preferably or optionally, the method for preparing the oil-phase solution comprises: adding furan as a solvent to a three-necked round-bottom flask under nitrogen protection, then introducing nitrogen for 25-35 min to remove the oxygen in the device and the solvent, and then adding 4-carboxybenzaldehyde in an amount 0.3-0.5 times the mass of furan under nitrogen protection to obtain the oil-phase solution.

[0013] Preferably or optionally, the rotation speed is 400-600 rpm.

[0014] Preferably or optionally, the initiator is ammonium persulfate, and the mass of ammonium persulfate is 0.003-0.005 times the mass of the aqueous solution.

[0015] The present invention also provides an application method of a cleaning agent, and the cleaning agent can be applied to coal mine wastewater.

[0016] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0017] An environmentally friendly graphite heavy oil stain cleaning agent suitable for aluminum alloy forming disclosed by the present invention comprises the following components by mass percentage: 9-11% weak basic substance, 22-24% deoiling microspheres, 2-4% corrosion inhibitor, 2-6% abrasive, 55-65% deionized water; the weak basic substance comprises any one or at least two combinations of diethylamine, triethylamine, ethanolamine, diethanolamine or dicyclohexylamine; the abrasive is nano-silica with a particle size of 80-100 nm; the corrosion inhibitor comprises any one or at least two combinations of thiourea, heterocyclic amine, sodium molybdate or sodium metasilicate; the deoiling microspheres are obtained by wrapping an oil-phase solution of 4-carboxybenzaldehyde with poly-N-isopropylacrylamide gel.

[0018] The degreasing microspheres and the abrasive quickly deposit on the surface of the graphite mold for aluminum alloy forming. While grinding off the release agent, aluminum alloy and other materials remaining on the surface of the graphite mold for aluminum alloy forming, it can reduce the scratches caused by direct scraping of the graphite mold for aluminum alloy forming during grinding, ensuring that there is no residue on the surface of the graphite mold for aluminum alloy forming after cleaning.

[0019] Mix N,N'-methylenebisacrylamide, N-isopropylacrylamide, acrylic acid, and deionized water and polymerize them to form the shell of the degreasing microspheres, namely poly(N-isopropylacrylamide) hydrogel. The poly(N-isopropylacrylamide) hydrogel on the surface of the degreasing microspheres adheres to the ground residues and dust, and penetrates with the oil stains on the surface of the graphite mold for aluminum alloy forming through the lipophilic groups in the poly(N-isopropylacrylamide) hydrogel. When in use, it is heated and swells under the combined action of weak alkaline substances, so that the oily dirt is dispersed into smaller oil units under the swelling force, and a large number of hydrophilic groups are exposed on the surface of the hydrogel microcapsules, emulsifying, dispersing, and solubilizing in water to achieve the degreasing effect.

[0020] At the same time, the oil-phase solution inside the degreasing microspheres is released through the voids of the swollen gel network to form poly(N-isopropylacrylamide) hydrogel empty capsules. The dispersed oil floats under the action of density difference, driving the poly(N-isopropylacrylamide) hydrogel empty capsules to float. At the same time, the aldehyde group of 4-carboxybenzaldehyde in the oil-phase solution reacts with the amino group in the weak alkaline substance to form a Schiff base ligand. The Schiff base ligand coordinates with aluminum ions to form a Schiff base-aluminum complex. The Schiff base-aluminum complex deposits on the surface of the graphite mold for aluminum alloy forming and grafts through the reaction of the carboxyl group and the hydroxyl group on the surface of the graphite mold for aluminum alloy forming, forming a dense metal-organic film layer on the surface of the graphite mold for aluminum alloy forming, enhancing the anti-corrosion performance of the environmentally friendly heavy oil stain cleaning agent suitable for graphite of aluminum alloy forming. Specific embodiments

[0021] Next, in combination with the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0022] In order to more clearly illustrate the method provided by the present invention, the following embodiments are used for detailed description. The test methods for each index of the environmentally friendly heavy oil stain cleaning agent suitable for graphite of aluminum alloy forming prepared in the following embodiments are as follows:

[0023] Oil removal rate: Clean and oil-free aluminum alloy forming graphite molds of the same mass are tied with glass fibers, hung with a hook, placed in an oven at 40 °C and dried for 30 min, then taken out and cooled to room temperature in a desiccator, weighed and recorded as (W0). Then, they are immersed in crude oil heated to 60 °C until fully coated with crude oil, taken out and hung on a specimen rack until no oil drips, weighed and recorded as (W1). They are put into the environmentally friendly heavy oil stain cleaning agent for aluminum alloy forming graphite prepared in the examples and comparative examples, which is 30 times its mass, left standing for 2 h, then stirred at 1200 r / min for 50 min, fished out, washed 3 times with deionized water, put into an oven at 40 °C together with the hook and dried for 1 h, taken out and cooled to room temperature in a desiccator, weighed and recorded as (W2). The oil removal rate = 100% * (W1 - W2) / (W1 - W0).

[0024] Anti-corrosion performance: Observe the aluminum alloy forming graphite molds treated with the environmentally friendly heavy oil stain cleaning agent for aluminum alloy forming graphite obtained in the examples and comparative examples, and perform aluminum alloy die-casting 3 times. Observe whether there is obvious corrosion on the surface of the aluminum alloy forming graphite molds after die-casting.

[0025] Example 1

[0026] A preparation method of an environmentally friendly heavy oil stain cleaning agent for aluminum alloy forming graphite includes the following preparation steps:

[0027] (1) Ingredients: water, weak alkaline substance, oil removal microspheres, corrosion inhibitor, abrasive;

[0028] (2) Preparation of oil removal microspheres: Under nitrogen protection, add furan as a solvent to a three-necked round-bottom flask, then introduce nitrogen for 25 min to remove oxygen in the device and the solvent. Then, under nitrogen protection, add 4-carboxybenzaldehyde, which is 0.3 times the mass of furan, to obtain an oil-phase solution; Mix N,N'-methylenebisacrylamide, N-isopropylacrylamide, acrylic acid, and deionized water in a mass ratio of 1:3:1:6, stir at 400 rpm for 20 min to obtain an aqueous solution; Then fix the aqueous solution to a constant-speed stirrer, and under a rotation speed of 400 rpm and nitrogen protection, use a peristaltic pump driver to pump the oil-phase solution into the aqueous solution, add ammonium persulfate, which is 0.003 times the mass of the aqueous solution, heat up to 80 °C, and carry out a polymerization reaction for 3.5 h. Then, evacuate to obtain oil removal microspheres;

[0029] (3) Mix 9% weak alkaline substance, 22% oil removal microspheres, 2% corrosion inhibitor, 2% abrasive, and 65% deionized water by mass percentage, stir at 800 r / min for 20 min to prepare an environmentally friendly heavy oil stain cleaning agent for aluminum alloy forming graphite; Among them, the weak alkaline substance is triethylamine; the abrasive is 80 nm nano-silica; the corrosion inhibitor includes thiourea.

[0030] Example 2

[0031] A preparation method of an environmentally friendly graphite heavy oil and grease cleaning agent suitable for aluminum alloy forming, comprising the following preparation steps:

[0032] (1) Ingredients: water, weak alkaline substance, oil-removing microspheres, corrosion inhibitor, abrasive;

[0033] (2) Preparation of oil-removing microspheres: Under nitrogen protection, add furan as a solvent to a three-necked round-bottom flask, then introduce nitrogen for 30 minutes to remove oxygen in the device and the solvent. Subsequently, under nitrogen protection, add 4-carboxybenzaldehyde with a mass 0.4 times that of furan to obtain an oil-phase solution; Mix N,N'-methylenebisacrylamide, N-isopropylacrylamide, acrylic acid, and deionized water in a mass ratio of 1:4:2:8, and stir at 500 rpm for 30 minutes to obtain an aqueous-phase solution; Subsequently, fix the aqueous-phase solution to a constant-speed stirrer, and under a rotation speed of 500 rpm and nitrogen protection, use a peristaltic pump driver to pump the oil-phase solution into the aqueous-phase solution, add ammonium persulfate with a mass 0.004 times that of the aqueous-phase solution, heat up to 85 °C, and carry out a polymerization reaction for 4 hours. Subsequently, evacuate to obtain oil-removing microspheres;

[0034] (3) Mix 10% weak alkaline substance, 23% oil-removing microspheres, 3% corrosion inhibitor, 4% abrasive, and 60% deionized water by mass percentage, and stir at 900 r / min for 30 minutes to prepare a dust and rust removal cleaning agent for magnetic materials; Among them, the weak alkaline substance uses diethylamine; the abrasive uses 90 nm nano-silica; the corrosion inhibitor uses heterocyclic amine.

[0035] Example 3

[0036] A preparation method of an environmentally friendly graphite heavy oil and grease cleaning agent suitable for aluminum alloy forming, comprising the following preparation steps:

[0037] (1) Ingredients: water, weak alkaline substance, oil-removing microspheres, corrosion inhibitor, abrasive;

[0038] (2) Preparation of oil-removing microspheres: Under nitrogen protection, add furan as a solvent to a three-necked round-bottom flask, then introduce nitrogen for 35 minutes to remove oxygen in the device and the solvent. Subsequently, under nitrogen protection, add 4-carboxybenzaldehyde with a mass 0.5 times that of furan to obtain an oil-phase solution; Mix N,N'-methylenebisacrylamide, N-isopropylacrylamide, acrylic acid, and deionized water in a mass ratio of 1:5:3:10, and stir at 600 rpm for 40 minutes to obtain an aqueous-phase solution; Subsequently, fix the aqueous-phase solution to a constant-speed stirrer, and under a rotation speed of 600 rpm and nitrogen protection, use a peristaltic pump driver to pump the oil-phase solution into the aqueous-phase solution, add ammonium persulfate with a mass 0.005 times that of the aqueous-phase solution, heat up to 90 °C, and carry out a polymerization reaction for 4.5 hours. Subsequently, evacuate to obtain oil-removing microspheres;

[0039] (3) Mix 11% of a weakly basic substance, 24% of oil-removing microspheres, 4% of a corrosion inhibitor, 6% of an abrasive, and 65% of deionized water by mass percentage, and stir at 1000 r / min for 40 min to prepare a dust and rust removal cleaning agent for magnetic materials; wherein, the weakly basic substance is ethanolamine; the abrasive is 100 nm nano-silica; the corrosion inhibitor is sodium molybdate.

[0040] Comparative Example 1

[0041] A preparation method of an environment-friendly heavy oil and graphite stain cleaning agent suitable for aluminum alloy forming, comprising the following preparation steps:

[0042] (1) Ingredients: water, weakly basic substance, oil-removing microspheres, corrosion inhibitor, abrasive;

[0043] (2) Preparation of oil-removing microspheres: Mix N,N'-methylenebisacrylamide, N-isopropylacrylamide, acrylic acid, and deionized water in a mass ratio of 1:4:2:8, and stir at 500 rpm for 30 min to obtain an aqueous solution; then fix the aqueous solution on a constant-speed stirrer, add ammonium persulfate at 0.004 times the mass of the aqueous solution under a rotation speed of 500 rpm and nitrogen protection, heat up to 85 °C, and carry out a polymerization reaction for 4 h, and then evacuate to obtain oil-removing microspheres;

[0044] (3) Mix 10% of a weakly basic substance, 23% of oil-removing microspheres, 3% of a corrosion inhibitor, 4% of an abrasive, and 60% of deionized water by mass percentage, and stir at 900 r / min for 30 min to prepare a dust and rust removal cleaning agent for magnetic materials; wherein, the weakly basic substance is diethylamine; the abrasive is 90 nm nano-silica; the corrosion inhibitor is heterocyclic amine.

[0045] Comparative Example 2

[0046] A preparation method of an environment-friendly heavy oil and graphite stain cleaning agent suitable for aluminum alloy forming, comprising the following preparation steps:

[0047] (1) Ingredients: water, weakly basic substance, oil-removing microspheres, corrosion inhibitor, abrasive;

[0048] (2) Preparation of deoiled microspheres: under nitrogen protection, furan was added as a solvent to a three-necked round-bottom flask, and then nitrogen was introduced for 30 minutes to remove oxygen in the device and the solvent. Then, under nitrogen protection, 0.4 times the mass of furan 4-carboxybenzaldehyde was added to obtain an oil phase solution; chitosan and deionized water were mixed in a mass ratio of 4:8, and stirred at 500 rpm for 30 minutes to obtain an aqueous phase solution; then the aqueous phase solution was fixed to a constant speed stirrer, and the oil phase solution was pumped into the aqueous phase solution by a peristaltic pump driver at a speed of 500 rpm and under nitrogen protection, and 0.004 times the mass of the aqueous phase solution ammonium persulfate was added, and the temperature was raised to 85°C, and the polymerization reaction was carried out for 4 hours, and then vacuum was evacuated to obtain deoiled microspheres;

[0049] (3) 10% weak alkaline substance, 23% degreasing microspheres, 3% corrosion inhibitor, 4% abrasive, and 60% deionized water were mixed according to mass percentage, and stirred at 900 r / min for 30 min to prepare a dust and rust removal cleaning agent for magnetic materials; wherein the weak alkaline substance is diethylamine; the abrasive is 90 nm nano-silica; and the corrosion inhibitor is a heterocyclic amine.

[0050] Comparative Example 3

[0051] A method for preparing an environmentally friendly graphite heavy oil cleaning agent suitable for aluminum alloy molding comprises the following preparation steps:

[0052] (1) Ingredients: water, weak alkaline substances, surfactants, corrosion inhibitors, and abrasives;

[0053] (2) 10% weak alkaline substance, surfactant, 3% corrosion inhibitor, 4% abrasive, and 60% deionized water were mixed according to mass percentage, and stirred at 900 r / min for 30 min to prepare a dust and rust removal cleaning agent for magnetic materials; wherein the weak alkaline substance is diethylamine; the abrasive is 90 nm nano-silica; the corrosion inhibitor is a heterocyclic amine; and the surfactant is sodium dodecyl sulfate.

[0054] Comparative Example 4

[0055] A method for preparing an environmentally friendly graphite heavy oil cleaning agent suitable for aluminum alloy molding comprises the following preparation steps:

[0056] (1) Ingredients: water, sodium hydroxide, degreasing microspheres, corrosion inhibitor, abrasive;

[0057] (2) Preparation of defatted microspheres: Under nitrogen protection, add furan as a solvent to a three-necked round-bottom flask. Subsequently, introduce nitrogen for 30 min to remove oxygen in the device and the solvent. Then, under nitrogen protection, add 4-carboxybenzaldehyde with a mass 0.4 times that of furan to obtain an oil-phase solution; Mix N,N'-methylenebisacrylamide, N-isopropylacrylamide, acrylic acid, and deionized water in a mass ratio of 1:4:2:8, and stir at 500 rpm for 30 min to obtain an aqueous-phase solution; Then fix the aqueous-phase solution on a constant-speed stirrer. Under a rotation speed of 500 rpm and nitrogen protection, use a peristaltic pump driver to pump the oil-phase solution into the aqueous-phase solution, add ammonium persulfate with a mass 0.004 times that of the aqueous-phase solution, heat up to 85 °C, and carry out a polymerization reaction for 4 h. Then evacuate to obtain defatted microspheres;

[0058] (3) Mix 10% sodium hydroxide, 23% defatted microspheres, 3% corrosion inhibitor, 4% abrasive, and 60% deionized water by mass percentage, and stir at 900 r / min for 30 min to prepare a dust and rust removal cleaning agent for magnetic materials; Among them, the abrasive uses 90 nm nano-silica; The corrosion inhibitor uses heterocyclic amine.

[0059] Effect example

[0060] Table 1 below gives the analysis results of the oil removal performance and corrosion prevention performance of the cleaning agents prepared by using Examples 1 to 3 and Comparative Examples 1 to 4 of the present invention.

[0061] Table 1

[0062] Example 1 Example 2 Example 3 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Degreasing rate (%) 94.68 94.89 94.72 94.70 2.33 60.58 96.32 Whether there is obvious corrosion on the surface None None None Slight corrosion Slight corrosion Slight corrosion Obvious corrosion

[0063] It can be found from Table 1 that the cleaning agents prepared in Examples 1, 2, and 3 have good oil removal performance and corrosion prevention performance; From the comparison of the experimental data of Examples 1, 2, 3 and Comparative Examples 1 and 3, it can be found that by using an oil-phase solution containing 4-carboxybenzaldehyde to prepare a defatted microsphere to prepare a cleaning agent, the prepared cleaning agent has good corrosion prevention performance; From the experimental data of Examples 1, 2, 3 and Comparative Examples 2 and 3, it can be found that by using N,N'-methylenebisacrylamide, N-isopropylacrylamide, and acrylic acid to prepare a defatted microsphere to prepare a cleaning agent, the prepared cleaning agent has good oil removal performance and corrosion prevention performance; From the experimental data of Examples 1, 2, 3 and Comparative Example 4, it can be found that by using a weak alkaline substance to prepare a cleaning agent, the prepared cleaning agent has good corrosion prevention performance.

[0064] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, in all respects, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Accordingly, all changes that fall within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. No mark in the claims should be regarded as limiting the claim concerned.

Claims

1. An environmentally friendly graphite heavy oil stain cleaner suitable for aluminum alloy forming, characterized in that, It comprises the following components by mass percentage: 9-11% of a weakly basic substance, 22-24% of deoiling microspheres, 2-4% of a corrosion inhibitor, 2-6% of an abrasive, and 55-65% of deionized water; The preparation method of the deoiling microspheres comprises: under nitrogen protection, fixing the aqueous solution to a constant-speed stirrer, pumping the oil-phase solution into the aqueous solution with a peristaltic pump driver at a certain rotation speed and under nitrogen protection, adding an initiator, heating to 80-90 °C, carrying out a polymerization reaction for 3.5-4.5 h, and then evacuating to obtain the deoiling microspheres; The preparation method of the aqueous solution comprises: mixing N,N'-methylenebisacrylamide, N-isopropylacrylamide, acrylic acid, and deionized water in a certain mass ratio, and stirring at 400-600 rpm for 20-40 min to obtain the aqueous solution; The preparation method of the oil-phase solution comprises: under nitrogen protection, adding furan as a solvent to a three-necked round-bottom flask, then introducing nitrogen for 25-35 min to remove the oxygen in the device and the solvent, and then adding 4-carboxybenzaldehyde with a mass 0.3-0.5 times that of furan under nitrogen protection to obtain the oil-phase solution.

2. The environmentally friendly graphite heavy oil stain cleaner suitable for aluminum alloy forming according to claim 1, characterized in that, The weakly basic substance includes any one or a combination of at least two of diethylamine, triethylamine, ethanolamine, diethanolamine, or dicyclohexylamine.

3. The environmentally friendly graphite heavy oil stain cleaner suitable for aluminum alloy forming according to claim 1, characterized in that, The abrasive is 80-100 nm nano-silica.

4. The environmentally friendly graphite heavy oil stain cleaner suitable for aluminum alloy forming according to claim 1, characterized in that, The corrosion inhibitor includes any one or a combination of at least two of thiourea, heterocyclic amine, sodium molybdate, or sodium metasilicate.

5. The environmentally friendly graphite heavy oil stain cleaner suitable for aluminum alloy forming according to claim 1, characterized in that, The N,N'-methylenebisacrylamide, N-isopropylacrylamide, acrylic acid, and deionized water are mixed in a mass ratio of 1:3-5:1-3:6-10.

6. The environmentally friendly graphite heavy oil stain cleaner suitable for aluminum alloy forming according to claim 1, characterized in that, The rotation speed is 400-600 rpm.

7. The environmentally friendly graphite heavy oil stain cleaner suitable for aluminum alloy forming according to claim 1, characterized in that, The initiator is ammonium persulfate, and the mass of ammonium persulfate is 0.003-0.005 times the mass of the aqueous solution.