CN115029705A - Low-foam environment-friendly water-based aluminum alloy cleaning agent formula - Google Patents
Low-foam environment-friendly water-based aluminum alloy cleaning agent formula Download PDFInfo
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- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
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Abstract
The invention relates to a low-foam environment-friendly water-based aluminum alloy cleaning agent formula, which is prepared from the following raw materials in parts by weight: 2-6% of low-foaming surfactant; 2-10% of corrosion inhibitor; 0.5-5% of cleaning auxiliary agent; 2-10% of a chelating agent; 0 to 0.5 percent of defoaming agent; when the cleaning agent is used for cleaning moderate oil stains, raw materials comprise 4% of isomeric alcohol polyoxyethylene ether, 6% of corrosion inhibitor, 3% of sodium silicate, 6% of chelating agent and 0.25% of defoaming agent. The cleaning agent is suitable for aluminum alloy cleaning work pursuing different cleaning effects and different cleaning strengths, the raw materials of the formula do not contain toxic or environmentally hazardous substances such as strong acid, strong alkali, phosphorus, Nonylphenol Polyoxyethylene Ether (NPEO) and the like, the formula adopts a low-foam surfactant, the dosage of the surfactant is small, the foam is small, the dirt-removing capacity is strong, and the cleaning agent has excellent cleaning capacity and aluminum alloy protection capacity; meanwhile, the product has extremely high flexibility in application.
Description
Technical Field
The invention relates to the technical field of industrial cleaning, in particular to a formula of a low-foam environment-friendly water-based aluminum alloy cleaning agent.
Background
The aluminum alloy cleaning agent is used for polishing or cleaning aluminum alloy, can clean various grease, grease and stains on the surface of the aluminum alloy, and is also a common industrial cleaning agent. Aluminum alloys have been widely used in the fields of construction, automobile, 3C, aerospace and the like due to their light weight and high strength, but these aluminum alloy products inevitably introduce various dirt during the processing and manufacturing process, such as metal working fluid, lubricant, mold release agent, processed metal chips and the like, which can affect the subsequent processing of metal products, and therefore, the cleaning treatment using a metal cleaning agent is required. However, since aluminum alloy is a material having relatively active properties and is likely to corrode during cleaning with a general-purpose cleaning agent, which causes problems such as discoloration and white spots, it has been conventionally necessary to clean the aluminum alloy with a special aluminum alloy cleaning agent.
With the development of the modern aluminum alloy degreasing technology, the requirements of domestic and foreign degreasing agents are developed towards high efficiency, low energy consumption, simple process, safety, reliability and environmental protection. The development of water-based degreasing agents and degreasing processes which have the characteristics of replacing oil with water, saving energy, being safe and reliable, reducing pollution, being simple to operate, reducing cost and the like has become a current research hotspot. The research hotspot is also closely related to the cleaning problem of the aluminum material or the aluminum alloy workpiece, and for the aluminum material workpiece which is qualified in cleaning, the surface of the cleaned aluminum material workpiece should not be oxidized or discolored, and the surface of the aluminum material workpiece is not affected; it can be seen that it is important to choose which water-based cleaning agent to clean, and the following can be analyzed one by way of example:
if a strong alkaline cleaning agent is used for cleaning, the cleaned aluminum material is easy to have the phenomenon of yellowing or blackening; relatively speaking, the alkalescent cleaning agent is widely applied in industrial cleaning agents, and although yellowing and blackening do not occur after cleaning, the alkalescent cleaning agent has the defects that a workpiece is placed for a long time after cleaning, and the surface is easy to have the phenomena of yellowing and long white spots; if the neutral water-based cleaning agent is adopted, the cleaning is milder, the aluminum product can be protected from oxidation, and the problem of surface oxidation of the cleaned aluminum product workpiece in the subsequent storage process can be avoided.
Obviously, the development of the water-based aluminum alloy cleaning agent with excellent cleaning effect is also important for machining production. The reason is that various kinds of dirt may adhere to the surfaces of aluminum alloy parts and equipment in different aluminum alloy processing procedures, and if the smooth proceeding of the front and rear procedures is ensured and the treatment of the subsequent processes and the product quality are not affected, the dirt must be sufficiently cleaned.
The technical personnel can obtain the cleaning effect of the common cleaning agent which is used for the aluminum alloy cleaning work in the past after analyzing the cleaning effect, the water-based aluminum alloy cleaning agent which is used at present can not meet the increasingly severe industrial cleaning requirement due to the double limitations of the selection of the types of the preparation raw materials and the weight ratio of the raw materials, and the defects are mainly focused on the following aspects:
first, the degreasing process for degreasing and cleaning aluminum and aluminum alloy continues to use steel and iron in the early days, which has high cost, is not easy to clean and is seriously corroded, although the degreasing process is performed at room temperature by using an acidic degreasing agent after the improvement, the process generates a large amount of toxic pollutants such as nitrogen oxides, hydrogen fluoride, chromate and the like in the production process, and is not beneficial to sustainable development.
Secondly, at present, for metal cleaning work, an appropriate treatment mode is selected according to different dirt types, for example, chemical acid cleaning can remove metal oxides, organic solvent cleaning dissolves dirt by means of solvents, and water-based cleaning takes surfactants as main active components, wherein the water-based cleaning agent mainly taking the surfactants overcomes the problem that the cleaning range of other cleaning agents is narrow, but the raw material preparation is unclear and the cleaning effect is not obvious.
Thirdly, even though chinese patent CN106894029A discloses an aluminum alloy cleaning agent containing water, complexing agent, accelerator, surfactant, hydroxyethylidene diphosphonic acid and thiosemicarbazide, it is still low in cleaning level and has no prospect of optimization and improvement, but it cannot fully remove the oxide layer of the aluminum alloy without corroding the substrate itself while degreasing.
If the aluminum alloy cleaning agent disclosed by Chinese patent CN107620080A is changed to be composed of sodium hydroxide, sodium carbonate, sodium metasilicate pentahydrate, tetrasodium ethylene diamine tetraacetate, nonylphenol polyoxyethylene ether, fatty acid methyl ester ethoxylated sulfonate, an organic silicon defoamer, sodium isooctanoate and water, although oil stains on the surface of the aluminum alloy material can be effectively removed, an aluminum alloy composite layer is not corroded, the rinsing performance is excellent, the subsequent brazing process can be ensured to be smoothly carried out, and the aluminum alloy cleaning agent is particularly suitable for production enterprises of automobile water tank radiators, however, the product contains Nonylphenol Polyoxyethylene Ether (NPEO) which has great harm to the environment, and in addition, the used surfactant is easy to generate foams and influences the actual use; on the whole, the cleaning agent has obvious difference in environmental protection, has no qualitative leap in the aspect of the proportion of raw materials, and is not suitable for wide use.
Fifthly, the aluminum alloy cleaning agent which is difficult to be adopted in the aspect of environmental protection, is composed of potassium aluminum sulfate, sodium tripolyphosphate, sodium bicarbonate, sodium nitrite, a decontaminating agent, a brightening agent and water, is disclosed in Chinese patent CN108004558A, can remove dirt on the surface of the aluminum alloy, has no pollution to the environment, is nontoxic, harmless and nonirritating to a human body, and can enable the metal surface to keep the original luster for a long time; however, the product contains water pollutants such as sodium tripolyphosphate and sodium nitrite.
In this way, some of the currently generally adopted aluminum alloy cleaning agents contain environmentally hazardous substances such as phosphate, nonylphenol polyoxyethylene ether and the like, and some of the commonly adopted aluminum alloy cleaning agents use surfactants with more foams, so that the use of the cleaning agents is influenced. The invention provides a low-foam environment-friendly water-based aluminum alloy cleaning agent formula by combining machining production practice and actual cleaning effect on the basis of the existing water-based aluminum alloy cleaning technology, the product does not contain environmentally hazardous substances, has low foam, has strong cleaning capability on common oil stains in the aluminum alloy processing process, and the cleaned aluminum alloy product does not change color or generate white spots and does not contain environmentally hazardous substances. The raw material selection and weight preparation of the formula are completely gradually optimized step by step, and research and development personnel finally obtain a technical scheme which tends to be optimal after carrying out experiments on a reasonable scheme adopted in each research and development stage, so that the formula is suitable for cleaning of aluminum alloy. Therefore, the technical scheme provided by the invention can relieve, partially solve or solve the problems in the prior art and can meet the requirements of aluminum alloy cleaning work.
Disclosure of Invention
Aiming at the defects, the invention provides a formula of a low-foam environment-friendly water-based aluminum alloy cleaning agent, which is suitable for meeting cleaning work of different degrees in the aluminum alloy processing and production process, and the formed cleaning agent can embody the advantages of small using amount of a surfactant, small foam, strong dirt-removing power, excellent cleaning power, aluminum alloy protection power and the like when being applied.
In order to achieve the purpose, the invention adopts the following technical scheme:
a formula of a low-foam environment-friendly water-based aluminum alloy cleaning agent is used for forming the cleaning agent which can be applied to aluminum alloy decontamination cleaning on the basis of adopting environment-friendly manufacturing raw materials, and ensures that the cleaned aluminum alloy product does not discolor or generate white spots, and the formula is prepared by adding water into the following raw materials in parts by weight:
raw material I: 2-6% of low-foaming surfactant;
and (2) raw material II: 2-10% of corrosion inhibitor;
raw material III: 0.5-5% of cleaning assistant;
and (2) raw material IV: 2-10% of a chelating agent;
raw material V: 0 to 0.5 percent of defoaming agent.
Aiming at the steps, technicians can also select and optimize according to different application requirements to form different technical schemes, including:
wherein the low-foaming surfactant is selected from isomeric alcohol polyoxyethylene ether, a combination of isomeric alcohol polyoxyethylene ether and EO-PO block polyether, or a combination of any one or more of EO-PO block polyether;
wherein the corrosion inhibitor is a combination of siloxane corrosion inhibitor and benzotriazole;
wherein, the cleaning auxiliary agent is selected from any one or a combination of several of sodium silicate, sodium metasilicate and potassium silicate;
wherein the chelating agent is selected from any one or combination of imino disuccinic acid sodium salt, sodium citrate, sodium gluconate and ethylene diamine tetraacetic acid sodium salt;
wherein the defoaming agent is selected from any one or a combination of several of polyethers or modified polysiloxanes.
Further, on the basis of the same concept, the method can be implemented according to different requirements and expected different technical effects, and the formed formulas comprise the following components:
a low-foam environment-friendly water-based aluminum alloy cleaning agent formula is used for cleaning light oil stains, the surface of a product cleaned by the cleaning agent has little residue and very low foam, and the formula is prepared from the following raw materials in parts by weight: 2% of isomeric alcohol polyoxyethylene ether and EO-PO block polyether, 2% of corrosion inhibitor, 1% of sodium metasilicate, 0.5% of iminodisuccinic acid sodium salt and 0.1% of defoaming agent.
A low-foam environment-friendly water-based aluminum alloy cleaning agent formula is used for cleaning moderate oil stains, and the formula is prepared from the following raw materials in parts by weight: 4% of isomeric alcohol polyoxyethylene ether, 6% of corrosion inhibitor, 3% of sodium silicate, 6% of chelating agent and 0.25% of defoaming agent; wherein, the sodium citrate and the sodium gluconate respectively account for 30 percent and 70 percent of the total weight of the chelating agent in turn.
A low-foam environment-friendly water-based aluminum alloy cleaning agent formula is used for aluminum alloy cleaning and foam inhibition effects, and is prepared from the following raw materials in parts by weight: 5% of low-foaming surfactant, 8% of corrosion inhibitor, 5% of sodium silicate, 10% of chelating agent and 0.5% of defoaming agent; wherein, the sodium citrate and the iminodisuccinic acid sodium salt respectively account for 20 percent and 80 percent of the total weight of the chelating agent in turn.
A low-foam environment-friendly water-based aluminum alloy cleaning agent formula is used for cleaning heavy oil stains, and the formula is prepared from the following raw materials in parts by weight: 6% of isomeric alcohol polyoxyethylene ether, 5% of corrosion inhibitor, 2% of sodium silicate, 4% of sodium gluconate and 0.5% of defoaming agent.
The cleaning agent is suitable for aluminum alloy cleaning work pursuing different cleaning effects and different cleaning strengths, the raw materials of the formula do not contain toxic or environmentally hazardous substances such as strong acid, strong alkali, phosphorus, Nonylphenol Polyoxyethylene Ether (NPEO) and the like, the formula adopts a low-foam surfactant, the dosage of the surfactant is small, the foam is small, the dirt-removing capacity is strong, and the cleaning agent has excellent cleaning capacity and aluminum alloy protection capacity; meanwhile, the proposed formula is convenient for changing the components of the original formula according to the cleaning requirements of different manufacturers, and then the cleaning agent is further produced, so that the required cleaning effect is obtained, and the flexibility of the product application is extremely high.
Drawings
The invention is explained in further detail below with reference to the drawing.
FIG. 1 is a schematic view of the formulation of a low-foam environment-friendly water-based aluminum alloy cleaning agent implemented by the present invention, and the raw material composition thereof is shown.
Detailed Description
The technical scheme of the invention is to implement a formula of a low-foam environment-friendly water-based aluminum alloy cleaning agent, and aims to solve the problems that the cleaning agent product produced by the conventional water-based aluminum alloy cleaning agent in the aluminum alloy processing and production process is poor in cleaning capability, limited in cleaning range, easy to discolor and easily generate white spots due to unreasonable preparation raw materials selected too one side and incomplete raw material proportion, most of similar cleaning agent products contain substances harmful to the environment and the like.
The technical scheme of the invention is that different materials are reasonably combined and then subjected to necessary weight proportion to form a cleaning agent product which has excellent cleaning capability and aluminum alloy protection capability and is suitable for cleaning aluminum alloy, so that the corresponding technical problem is finally relieved or solved. In addition, because the dosage of each raw material is in a certain range when the raw materials are proportioned, different schemes can be selected according to the preparation requirements, the functions exerted by different raw material proportions cannot be considered to be completely the same in a one-to-one way, and the technical scheme of the invention is characterized in that the raw materials are prepared by using a low-foaming surfactant, a corrosion inhibitor, a chelating agent, a defoaming agent and the like and then are subjected to necessary production steps, so that the equipment models used for preparation and the like are not improved compared with the conventional technical means, and the equipment models can be increased or decreased according to the requirements. Obviously, the technical solution of the present invention does not involve selecting any type of preparation equipment to match with the corresponding conventional technical means, and those skilled in the art know that it is necessary to refer to some conventional technical means as long as the technical means of the technical solution of the present invention can be implemented, and those skilled in the art can combine actual design requirements; of course, it is not limited to the selection of the apparatus, the model of the device, and the like. Therefore, the technical scheme implemented by the invention is actually a formula of the low-foam environment-friendly water-based aluminum alloy cleaning agent which can be referred and implemented by the technicians in the field by combining the conventional technical means, and the technicians actually obtain a series of advantages brought by the formula according to different application conditions and requirements, and the advantages are gradually reflected in the following analysis.
As shown in fig. 1, the formulation of the low-foam environment-friendly water-based aluminum alloy cleaning agent to be implemented in the present invention uses a low-foam surfactant, a corrosion inhibitor, a cleaning assistant, a chelating agent, a defoaming agent, etc. as main raw materials, and various materials are prepared in a certain proportion strictly to achieve the unique advantages of the product, and certainly, under the ordinary preparation conditions, the various materials can also be selected from a certain range of values by weight percent, which are in turn: 2-6%, 2-10%, 0.5-5%, 2-10%, 0-0.5%, the rest weight percentage is the weight percentage range of water.
Example one
When the low-foam environment-friendly water-based aluminum alloy cleaning agent is specifically implemented, the low-foam surfactant adopts isomeric alcohol polyoxyethylene ether, the corrosion inhibitor is a combination of siloxane corrosion inhibitor and benzotriazole (the specific matching can be according to the conventional proportion), the cleaning assistant adopts sodium silicate, and the chelating agent adopts sodium gluconate, wherein the weight percentages of the raw materials are as follows:
the low-foam environment-friendly water-based aluminum alloy cleaning agent formula implemented by the invention has strong oil stain capability and is very suitable for cleaning heavy oil stains; meanwhile, due to the strong emulsifying capacity, high surface activity and hard water resistance of the isomeric alcohol polyoxyethylene ether, the cleaning agent prepared by the raw material has obvious degreasing effect and good chemical stability and environmental compatibility.
Example two
The formula of the low-foam environment-friendly water-based aluminum alloy cleaning agent to be implemented by the invention is further improved or optimized by combining the above embodiments on the basis of the same conception, and in specific implementation, the corrosion inhibitor is the combination of siloxane corrosion inhibitor and benzotriazole, the cleaning assistant adopts sodium metasilicate, the chelating agent adopts iminodisuccinic acid sodium salt, and the weight percentages of the raw materials are as follows:
the formula of the low-foam environment-friendly water-based aluminum alloy cleaning agent is very suitable for cleaning mild oil stains, and meanwhile, the surface of a product after cleaning is low in residue and extremely low in foam; the low-foaming surfactant can adopt isomeric alcohol polyoxyethylene ether and EO-PO block polyether.
EXAMPLE III
The formula of the low-foam environment-friendly water-based aluminum alloy cleaning agent to be implemented by the invention is further improved or optimized by combining the above embodiments on the basis of the same conception, when in specific implementation, the corrosion inhibitor is the combination of siloxane ketone corrosion inhibitor and benzotriazole, the cleaning assistant adopts sodium silicate, the chelating agent adopts the combination of sodium citrate and sodium gluconate, and the weight percentages of the raw materials are as follows:
the formula of the low-foam environment-friendly water-based aluminum alloy cleaning agent disclosed by the invention is very suitable for cleaning moderate oil stain, wherein sodium citrate and sodium gluconate respectively account for 30% and 70% of the total weight of the chelating agent in sequence.
Example four
The formula of the low-foam environment-friendly water-based aluminum alloy cleaning agent to be implemented by the invention is further improved or optimized by combining the above embodiments on the basis of the same conception, when in specific implementation, the low-foam surfactant adopts any one or combination of more of EO-PO block polyether, the corrosion inhibitor is the combination of siloxane corrosion inhibitor and benzotriazole, the cleaning assistant adopts sodium silicate, the chelating agent adopts the combination of sodium citrate and iminodisuccinic acid sodium salt, and the weight percentages of the raw materials are as follows:
the formula of the low-foam environment-friendly water-based aluminum alloy cleaning agent implemented by the invention is very suitable for aluminum alloy cleaning work pursuing cleaning effect and foam inhibition effect simultaneously, wherein sodium citrate and iminodisuccinic acid sodium salt respectively account for 20% and 80% of the total weight of the chelating agent in sequence.
Obviously, the aluminum alloy cleaning agent provided by the invention has low component content, can fully remove the oxide layer of the aluminum alloy without corroding the base material when removing oil and degreasing, and has excellent cleaning effect. Meanwhile, when the formula provided by the invention is used for cleaning in the process of processing and producing aluminum alloy, the components of the original formula can be conveniently changed according to the cleaning requirements of different manufacturers, and then the cleaning agent is further produced, so that the required cleaning effect is obtained, and the flexibility of the product application is extremely high.
After actual experiments are carried out, the experimental test results of specific necessary items are recorded in the following table:
in the description herein, the appearances of the phrases "embodiment one," "this embodiment," "specific implementation," and the like in this specification are not necessarily all referring to the same embodiment or example, but rather to the same embodiment or example. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example; furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing description of the embodiments is provided to enable any person skilled in the art to make and use the embodiments, and it is to be understood that various modifications may be readily apparent to those skilled in the art, and that the generic principles defined herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present disclosure is not limited to the above embodiments, and modifications for the following situations should be within the scope of the present disclosure: firstly, a new technical scheme is implemented on the basis of the technical scheme of the invention, wherein the new technical scheme is implemented by different raw materials such as different types of low-foaming surfactants, corrosion inhibitors, cleaning aids, chelating agents, defoaming agents and the like, and the technical effects produced by the new technical scheme do not exceed the technical effects of the invention and do not produce the technical effects beyond the technical effects of the invention; equivalent replacement of part of the characteristics of the technical scheme of the invention by adopting the known technology produces the same technical effect as the invention, for example, the raw materials with the same effect are replaced; expanding on the basis of the technical scheme of the invention, wherein the substantial content of the expanded technical scheme does not exceed the technical scheme of the invention; and fourthly, applying the obtained technical means to other schemes in other related technical fields by utilizing equivalent transformation carried out by the text recording content of the invention.
Claims (10)
1. A formula of a low-foam environment-friendly water-based aluminum alloy cleaning agent is used for forming the cleaning agent which can be applied to aluminum alloy decontamination cleaning on the basis of adopting environment-friendly manufacturing raw materials, and ensures that the cleaned aluminum alloy product does not discolor or generate white spots, and is characterized in that the formula is prepared by the following raw materials by weight and then is added with water:
raw material I: 2-6% of low-foaming surfactant;
and (2) raw material II: 2-10% of corrosion inhibitor;
raw material III: 0.5-5% of cleaning auxiliary agent;
and (3) raw material IV: 2-10% of a chelating agent;
raw material V: 0 to 0.5 percent of defoaming agent.
2. The formula of the low-foam environment-friendly water-based aluminum alloy cleaning agent as claimed in claim 1, wherein the formula comprises the following components: the low-foaming surfactant is selected from isomeric alcohol polyoxyethylene ether, a combination of isomeric alcohol polyoxyethylene ether and EO-PO block polyether, or a combination of any one or more of EO-PO block polyether.
3. The formula of the low-foam environment-friendly water-based aluminum alloy cleaning agent as claimed in claim 1, wherein the formula comprises the following components: the corrosion inhibitor is a combination of siloxane corrosion inhibitor and benzotriazole.
4. The formula of the low-foam environment-friendly water-based aluminum alloy cleaning agent as claimed in claim 1, wherein the formula comprises the following components: the cleaning assistant is selected from any one or combination of sodium silicate, sodium metasilicate and potassium silicate.
5. The formula of the low-foam environment-friendly water-based aluminum alloy cleaning agent as claimed in claim 1, wherein the formula comprises the following components: the chelating agent is selected from any one or combination of imino disuccinic acid sodium salt, sodium citrate, sodium gluconate and ethylene diamine tetraacetic acid sodium salt.
6. The formulation of the low-foam environment-friendly water-based aluminum alloy cleaning agent according to any one of claims 1 to 5, wherein: the defoaming agent is selected from any one or combination of several of polyether or modified polysiloxane.
7. The formula of the low-foam environment-friendly water-based aluminum alloy cleaning agent is used for cleaning mild oil stains, and is characterized in that the surface of a product cleaned by the cleaning agent has less residue and extremely low foam, and the formula is prepared from the following raw materials in parts by weight:
raw material I: 2% of isomeric alcohol polyoxyethylene ether and EO-PO block polyether;
and (2) raw material II: 2% of corrosion inhibitor;
raw material III: 1% of sodium metasilicate;
and (3) raw material IV: 0.5 percent of iminodisuccinic acid sodium salt;
raw material V: 0.1 percent of defoaming agent.
8. The formula of the low-foam environment-friendly water-based aluminum alloy cleaning agent is used for cleaning moderate oil stains, and is characterized in that the formula is prepared from the following raw materials in parts by weight:
raw material I: 4% of isomeric alcohol polyoxyethylene ether;
and (2) raw material II: 6% of corrosion inhibitor;
raw material III: 3% of sodium silicate;
and (2) raw material IV: 6% of a chelating agent;
raw material V: 0.25% of defoaming agent;
wherein, the sodium citrate and the sodium gluconate respectively account for 30 percent and 70 percent of the total weight of the chelating agent in turn.
9. The low-foam environment-friendly water-based aluminum alloy cleaning agent formula is used for aluminum alloy cleaning and foam inhibition effects, and is characterized in that the formula is prepared from the following raw materials in parts by weight:
raw material I: 5% of low-foaming surfactant;
and (2) raw material II: 8% of corrosion inhibitor;
raw material III: 5% of sodium silicate;
and (2) raw material IV: 10% of a chelating agent;
raw material V: 0.5 percent of defoaming agent;
wherein, the sodium citrate and the iminodisuccinic acid sodium salt respectively account for 20 percent and 80 percent of the total weight of the chelating agent in turn.
10. The formula of the low-foam environment-friendly water-based aluminum alloy cleaning agent is used for cleaning heavy oil stains, and is characterized in that the formula is prepared from the following raw materials in parts by weight:
raw material I: 6% of isomeric alcohol polyoxyethylene ether;
and (2) raw material II: 5% of corrosion inhibitor;
raw material III: 2% of sodium silicate;
and (2) raw material IV: 4% of sodium gluconate;
raw material V: 0.5 percent of defoaming agent.
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