CN111575754A - Environment-friendly synchronous wax and oil removing cleaning agent before plating - Google Patents
Environment-friendly synchronous wax and oil removing cleaning agent before plating Download PDFInfo
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- CN111575754A CN111575754A CN201910508269.3A CN201910508269A CN111575754A CN 111575754 A CN111575754 A CN 111575754A CN 201910508269 A CN201910508269 A CN 201910508269A CN 111575754 A CN111575754 A CN 111575754A
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/34—Pretreatment of metallic surfaces to be electroplated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
- B08B3/12—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration by sonic or ultrasonic vibrations
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- C—CHEMISTRY; METALLURGY
- 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
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/14—Cleaning or pickling metallic material with solutions or molten salts with alkaline solutions
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- Materials Engineering (AREA)
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Abstract
The invention discloses an environment-friendly synchronous wax and oil removing cleaning agent before plating, belonging to the technical field of electroplating. An environment-friendly synchronous wax and oil removing cleaning agent before plating, which comprises the following raw materials in parts by weight: 25-39 parts of soda ash, 30-50 parts of sodium metasilicate pentahydrate, 0.1-10 parts of sodium dodecyl sulfate, 0.1-12 parts of fatty alcohol-polyoxyethylene ether, 0.1-12 parts of sodium gluconate, 10-30 parts of sodium citrate and 100-ion-resistant 150 parts of deionized water, and is an environment-friendly synchronous wax and oil removing cleaning agent before plating, and the preparation method is characterized by comprising the following steps of: the method comprises the following steps: taking one half of deionized water in parts by weight, putting the deionized water into a reaction kettle, heating the deionized water to 55 ℃, then taking sodium metasilicate pentahydrate, fatty alcohol-polyoxyethylene ether and sodium citrate in parts by weight, and pouring the sodium metasilicate pentahydrate, the fatty alcohol-polyoxyethylene ether and the sodium citrate in the reaction kettle in sequence for mixing and stirring; the method can finish the operations of wax removal and oil removal before plating by an electroplating factory by only one step, really realizes cleanness, environmental protection, emission reduction, consumption reduction and production cost reduction.
Description
Technical Field
The invention relates to the technical field of electroplating, in particular to an environment-friendly synchronous wax and oil removing cleaning agent before plating.
Background
Electroplating is a process of plating a thin layer of other metals or alloys on the surface of some metals by using the principle of electrolysis, and is a process of attaching a layer of metal film on the surface of a metal or other material product by using the action of electrolysis, thereby having the effects of preventing metal oxidation (such as corrosion), improving wear resistance, conductivity, light reflection, corrosion resistance (such as copper sulfate and the like), enhancing the appearance and the like. The outer layer of many coins is also plated.
In the current market, aiming at removing polishing wax and oil stain, a two-step operation method is mostly adopted: firstly removing wax by ultrasonic wave, and then removing oil by ultrasonic wave chemistry. The wax removing water is mainly compounded by some nonionic surfactants, so that the raw material price is high, the COD (chemical oxygen demand) of sewage treatment exceeds the standard, the ammonia nitrogen of oil removing powder exceeds the standard, most of the oil removing powder contains phosphorus, and the molecular structures of zinc-aluminum alloy and copper-iron alloy are completely different, so that wax scale and oil stain on the metal surface are usually treated separately, and the comprehensive cost is increased invisibly. The common wax removing water and oil removing powder can not well solve the problem that an electroplating plant can thoroughly and effectively remove polishing wax and oil stains on the surface of metal under the condition of limited production equipment.
Disclosure of Invention
The invention aims to solve the problems that the common wax removing water and oil removing powder in the prior art can not well remove polishing wax and oil stains on the metal surface of an electroplating plant under the limited condition of production equipment, and the polishing wax and oil stains are removed in the market, most of the common wax removing water and oil removing powder adopts a two-step operation method: firstly removing wax by ultrasonic waves and then removing oil by ultrasonic chemistry, which is very complicated in operation and wastes a large amount of manpower, material resources and financial resources, thereby providing the pre-plating environment-friendly synchronous wax and oil removing cleaning agent.
In order to achieve the purpose, the invention adopts the following technical scheme:
an environment-friendly synchronous wax and oil removing cleaning agent before plating, which comprises the following raw materials in parts by weight:
25-39 parts of soda ash, 30-50 parts of sodium metasilicate pentahydrate, 0.1-10 parts of sodium dodecyl sulfate, 0.1-12 parts of fatty alcohol-polyoxyethylene ether, 0.1-12 parts of sodium gluconate, 10-30 parts of sodium citrate and 150 parts of deionized water.
Preferably, the pre-plating environment-friendly synchronous wax and oil removing cleaning agent is characterized by comprising the following raw materials in parts by weight:
32 parts of sodium carbonate, 40 parts of sodium metasilicate pentahydrate, 2 parts of sodium dodecyl sulfate, 3 parts of fatty alcohol-polyoxyethylene ether, 3 parts of sodium gluconate, 20 parts of sodium citrate and 125 parts of deionized water.
Preferably, the pre-plating environment-friendly synchronous wax and oil removing cleaning agent is characterized by comprising the following preparation methods:
the method comprises the following steps: and (2) taking one half of deionized water in parts by weight, putting the deionized water into a reaction kettle, heating the deionized water to 55 ℃, then taking sodium metasilicate pentahydrate, fatty alcohol-polyoxyethylene ether and sodium citrate in parts by weight, pouring the sodium metasilicate pentahydrate, fatty alcohol-polyoxyethylene ether and sodium citrate into the reaction kettle in sequence, mixing and stirring at the stirring speed of 54-58 r/m, adding soda in parts by weight when the temperature is reduced to 20-48 ℃, stirring at the temperature of 28-35 ℃ for 12-18 minutes, and obtaining mixed solution A.
Step two: and (3) taking the remaining half of deionized water, putting the deionized water into a reaction kettle, adjusting the temperature of the deionized water to 20 ℃, sequentially pouring the sodium dodecyl sulfate and the sodium gluconate in parts by weight into the reaction kettle, mixing and stirring at the stirring speed of 40-60 rpm and the stirring temperature of 15-20 ℃ for 10-15 minutes to obtain a mixed solution B.
Step three: and mixing the mixed solution A and the mixed solution B, stirring for 5-40 minutes at room temperature, and uniformly mixing to obtain the water-based paint.
Preferably, the temperature in step one is reduced to 35 ℃.
Preferably, the stirring speed in the second step is 50 rpm.
Preferably, the stirring in the third step is carried out for 20 minutes.
Preferably, the pre-plating environment-friendly synchronous wax and oil removing cleaning agent is characterized by comprising the following using methods:
adding 2-5 kg of the product into the ultrasonic cleaner every hundred liters of water, and heating to 55-70 ℃ for 2-8 minutes.
Compared with the prior art, the invention provides an environment-friendly synchronous wax and oil removing cleaning agent before plating, which has the following beneficial effects:
1. the environment-friendly synchronous wax and oil removing cleaning agent before plating saves one process compared with the traditional process by the comprehensive proportion of all raw materials, realizes wax and oil removal in one step, greatly reduces the cost of pre-plating treatment, and accords with the trend of industry development.
2. The environment-friendly synchronous wax and oil removing cleaning agent before plating has the advantages of long action period, low consumption, no need of adding chemicals within 36 hours, capability of using 120-150 hours in one-time cleaning under the condition of adding the agent, and reduction of the cost of sewage discharge.
3. The environment-friendly synchronous wax and oil removing cleaning agent before plating has low requirement on temperature, and reduces the production cost of electricity and steam generated by heating.
4. The environment-friendly synchronous wax and oil removing cleaning agent before plating contains no phosphorus, the COD index and the ammonia nitrogen index are within normal range values, and the cleaning agent meets ten detection standards of European Union SGS, so that the wastewater treatment cost is reduced, the pollution to the environment is reduced, and the aims of reducing emission, reducing consumption and protecting the environment are fulfilled.
5. The environment-friendly type synchronous wax and oil removing cleaning agent before plating does not contain sodium hydroxide, is not easy to corrode a zinc-aluminum alloy substrate, can thoroughly remove the hanging ash of die-cast aluminum, has obvious cleaning effect on wax scale and oil stain of copper and iron parts, and really realizes that one production line can simultaneously meet the cleaning treatment before plating of different materials.
The parts which are not involved in the device are the same as or can be realized by adopting the prior art, and the wax and oil removing operation before plating can be finished by an electroplating manufacturer only by one step, so that the device really realizes cleanness, environmental protection, emission reduction, consumption reduction and production cost reduction.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments.
Example 1:
the environment-friendly synchronous wax and oil removing cleaning agent before plating is characterized by comprising the following raw materials in parts by weight:
25-39 parts of soda ash, 30-50 parts of sodium metasilicate pentahydrate, 0.1-10 parts of sodium dodecyl sulfate, 0.1-12 parts of fatty alcohol-polyoxyethylene ether, 0.1-12 parts of sodium gluconate, 10-30 parts of sodium citrate and 150 parts of deionized water.
An environment-friendly synchronous wax and oil removing cleaning agent before plating, which is characterized in that the preparation method comprises the following steps:
the method comprises the following steps: and (2) taking one half of deionized water in parts by weight, putting the deionized water into a reaction kettle, heating the deionized water to 55 ℃, then taking sodium metasilicate pentahydrate, fatty alcohol-polyoxyethylene ether and sodium citrate in parts by weight, pouring the sodium metasilicate pentahydrate, fatty alcohol-polyoxyethylene ether and sodium citrate into the reaction kettle in sequence, mixing and stirring at the stirring speed of 54-58 r/m, adding the soda in parts by weight when the temperature is reduced to 35 ℃, stirring at the temperature of 28-35 ℃ for 12-18 minutes, and obtaining a mixed solution A.
Step two: and (3) taking the remaining half of deionized water, putting the deionized water into a reaction kettle, adjusting the temperature of the deionized water to 20 ℃, sequentially pouring the sodium dodecyl sulfate and the sodium gluconate in parts by weight into the reaction kettle, mixing and stirring at the stirring speed of 50 revolutions per minute and the stirring temperature of 15-20 ℃ for 10-15 minutes to obtain a mixed solution B.
Step three: and mixing the mixed solution A and the mixed solution B, stirring for 20 minutes at room temperature, and uniformly mixing to obtain the water-based paint.
Example 2:
the environment-friendly synchronous wax and oil removing cleaning agent before plating is characterized by comprising the following raw materials in parts by weight:
25-39 parts of soda ash, 30-50 parts of sodium metasilicate pentahydrate, 0.1-10 parts of sodium dodecyl sulfate, 0.1-12 parts of fatty alcohol-polyoxyethylene ether, 0.1-12 parts of sodium gluconate, 10-30 parts of sodium citrate and 150 parts of deionized water.
An environment-friendly synchronous wax and oil removing cleaning agent before plating, which is characterized in that the preparation method comprises the following steps:
the method comprises the following steps: and (2) taking one half of deionized water in parts by weight, putting the deionized water into a reaction kettle, heating the deionized water to 55 ℃, then taking sodium metasilicate pentahydrate, fatty alcohol-polyoxyethylene ether and sodium citrate in parts by weight, pouring the sodium metasilicate pentahydrate, fatty alcohol-polyoxyethylene ether and sodium citrate into the reaction kettle in sequence, mixing and stirring at the stirring speed of 54-58 r/m, adding the soda in parts by weight when the temperature is reduced to 35 ℃, stirring at the temperature of 28-35 ℃ for 12-18 minutes, and obtaining a mixed solution A.
Step two: and (3) taking the remaining half of deionized water, putting the deionized water into a reaction kettle, adjusting the temperature of the deionized water to 20 ℃, sequentially pouring the sodium dodecyl sulfate and the sodium gluconate in parts by weight into the reaction kettle, mixing and stirring at the stirring speed of 50 revolutions per minute and the stirring temperature of 15-20 ℃ for 10-15 minutes to obtain a mixed solution B.
Step three: and mixing the mixed solution A and the mixed solution B, stirring for 20 minutes at room temperature, and uniformly mixing to obtain the water-based paint.
Example 3:
the environment-friendly synchronous wax and oil removing cleaning agent before plating is characterized by comprising the following raw materials in parts by weight:
32 parts of sodium carbonate, 40 parts of sodium metasilicate pentahydrate, 2 parts of sodium dodecyl sulfate, 3 parts of fatty alcohol-polyoxyethylene ether, 3 parts of sodium gluconate, 20 parts of sodium citrate and 125 parts of deionized water.
An environment-friendly synchronous wax and oil removing cleaning agent before plating, which is characterized in that the preparation method comprises the following steps:
the method comprises the following steps: and (2) taking one half of deionized water in parts by weight, putting the deionized water into a reaction kettle, heating the deionized water to 55 ℃, then taking sodium metasilicate pentahydrate, fatty alcohol-polyoxyethylene ether and sodium citrate in parts by weight, pouring the sodium metasilicate pentahydrate, fatty alcohol-polyoxyethylene ether and sodium citrate into the reaction kettle in sequence, mixing and stirring at the stirring speed of 54-58 r/m, adding the soda in parts by weight when the temperature is reduced to 35 ℃, stirring at the temperature of 28-35 ℃ for 12-18 minutes, and obtaining a mixed solution A.
Step two: and (3) taking the remaining half of deionized water, putting the deionized water into a reaction kettle, adjusting the temperature of the deionized water to 20 ℃, sequentially pouring the sodium dodecyl sulfate and the sodium gluconate in parts by weight into the reaction kettle, mixing and stirring at the stirring speed of 50 revolutions per minute and the stirring temperature of 15-20 ℃ for 10-15 minutes to obtain a mixed solution B.
Step three: and mixing the mixed solution A and the mixed solution B, stirring for 20 minutes at room temperature, and uniformly mixing to obtain the water-based paint.
An environment-friendly synchronous wax and oil removing cleaning agent before plating is characterized by comprising the following application methods:
adding 2-5 kg of the product into the ultrasonic cleaner every hundred liters of water, and heating to 55-70 ℃ for 2-8 minutes.
Sodium carbonate (Na2CO3), molecular weight 105.99. Sodium carbonate is a white powder that is readily soluble in water, and the solution is alkaline (which causes the phenolphthalein solution to turn pale red). Can be decomposed at high temperature, and can not be decomposed by heating. The purity of chemicals is more than 99.5% (mass fraction), which is called soda ash, but the chemical belongs to salt and not to alkali. Also known as soda or soda ash in international trade. It is an important organic chemical raw material, mainly used for producing plate glass, glass products and ceramic glaze. It is also widely used in household washing, acid neutralization, food processing, etc.
Sodium metasilicate pentahydrate, white crystalline powder. Easily dissolved in water and dilute alkali liquor; insoluble in alcohol and acid. The aqueous solution is alkaline. When exposed in the air, the air is easy to absorb moisture and deliquesce. Has the functions of cleaning, emulsifying, dispersing, moistening, permeating and pH buffering. Sodium metasilicate is a non-toxic, tasteless, nuisanceless white powder or crystalline particles, is readily soluble in water, insoluble in alcohol and acid, and alkaline in aqueous solution, and has detergency, emulsifying, dispersing, wetting, permeability and buffering capacity against pH. Belongs to inorganic salt products, and is easy to absorb moisture and deliquesce when placed in the air.
Sodium lauryl sulfate or sodium lauryl sulfate, NaC12H25SO4, is the main component of the liquid detergent. It is commonly used in DNA extraction processes to denature proteins and separate them from DNA. Usually misread as sodium dodecyl sulfate. Sodium Lauryl Sulfate (SLS) is widely used as a foaming agent in toothpaste, soap, body lotions, shampoos, laundry powders, and cosmetics. White or light yellow crystal or powder, easily soluble in hot water, soluble in hot ethanol, and insoluble in cold water and petroleum ether. Belongs to an anionic surfactant and has excellent functions of penetration, washing, wetting, decontamination and emulsification.
Fatty alcohol polyoxyethylene ether (AEO), a liquid, also known as polyoxyethylene fatty alcohol ether. The variety which develops the fastest speed and has the largest dosage in the nonionic surfactant. This type of surfactant is an ether obtained by condensing polyethylene glycol (PEG) with fatty alcohol, and is represented by the general formula RO (CH2CH2O) nH, where n is the degree of polymerization, and the degree of polymerization of polyethylene glycol and the type of fatty alcohol are different.
The sodium gluconate is named as sodium gluconate, has the CAS number of 527-07-1, has the molecular formula of C20H25NaO10, is white crystal particles or powder, is very soluble in water, is slightly soluble in alcohol and is insoluble in ether, and is used for food additives, electroplating complexing agents, water quality stabilizers, dyeing industry color homogenizers, steel surface treatment agents and the like. The characteristics are as follows: white crystalline particles or powders, which are very soluble in water, slightly soluble in alcohol, and insoluble in diethyl ether.
Sodium citrate, also known as sodium citrate, is an organic compound that is white to colorless in appearance. No odor, and cool, salty and spicy taste. Stable at normal temperature and in air, has slight solubility in humid air, and generates weathering phenomenon in hot air. Heating to 150 ℃ lost the water of crystallization. Is easily soluble in water, soluble in glycerol, and insoluble in alcohols and other organic solvents, and can be decomposed by overheating, deliquesced slightly in humid environment, and weathered slightly in hot air, and the pH value of the solution is about 8. Sodium citrate is used as an acidity regulator, a flavoring agent, a stabilizer in the food and beverage industry; in the pharmaceutical industry as anticoagulants, expectorants and diuretics; in the detergent industry, the sodium tripolyphosphate can be replaced to be used as an auxiliary agent of a nontoxic detergent; it is also used for brewing, injection, photography, and electroplating.
According to the invention, through the comprehensive proportion of the raw materials, the process is saved compared with the traditional process, the wax and oil removal is realized in one step, the cost of the pre-plating treatment is greatly reduced, and the process conforms to the trend of industry development; the invention has long action period and small consumption, does not need to be supplemented with medicament within 36 hours, and can be used for 120-year and 150-hour in one-time cleaning under the condition of supplementing the product, thereby reducing the cost of sewage discharge; the invention has low requirement on temperature, and reduces the production cost of electricity and steam generated by heating; the invention does not contain phosphorus, and COD index and ammonia nitrogen index are within normal range values and meet ten detection standards of European Union SGS, thereby reducing the wastewater treatment cost, reducing the environmental pollution, realizing the purposes of reducing emission, reducing consumption and protecting the environment; the invention does not contain sodium hydroxide, is not easy to corrode a zinc-aluminum alloy substrate, can thoroughly remove the hanging ash of die-cast aluminum, has obvious cleaning effect on wax scale and oil stain of polished copper and iron parts, and truly realizes that one production line can simultaneously meet the cleaning treatment before plating of different materials; the method can finish the operations of wax removal and oil removal before plating by an electroplating factory by only one step, really realizes cleanness, environmental protection, emission reduction, consumption reduction and production cost reduction.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. The environment-friendly synchronous wax and oil removing cleaning agent before plating is characterized by comprising the following raw materials in parts by weight:
25-39 parts of soda ash, 30-50 parts of sodium metasilicate pentahydrate, 0.1-10 parts of sodium dodecyl sulfate, 0.1-12 parts of fatty alcohol-polyoxyethylene ether, 0.1-12 parts of sodium gluconate, 10-30 parts of sodium citrate and 150 parts of deionized water.
2. The pre-plating environment-friendly synchronous wax and oil removing cleaning agent as claimed in claim 1, wherein the cleaning agent comprises the following raw materials in parts by weight:
32 parts of sodium carbonate, 40 parts of sodium metasilicate pentahydrate, 2 parts of sodium dodecyl sulfate, 3 parts of fatty alcohol-polyoxyethylene ether, 3 parts of sodium gluconate, 20 parts of sodium citrate and 125 parts of deionized water.
3. The pre-plating environment-friendly synchronous wax and oil removing cleaning agent as claimed in claim 1, wherein the preparation method comprises the following steps:
the method comprises the following steps: and (2) taking one half of deionized water in parts by weight, putting the deionized water into a reaction kettle, heating the deionized water to 55 ℃, then taking sodium metasilicate pentahydrate, fatty alcohol-polyoxyethylene ether and sodium citrate in parts by weight, pouring the sodium metasilicate pentahydrate, fatty alcohol-polyoxyethylene ether and sodium citrate into the reaction kettle in sequence, mixing and stirring at the stirring speed of 54-58 r/m, adding soda in parts by weight when the temperature is reduced to 20-48 ℃, stirring at the temperature of 28-35 ℃ for 12-18 minutes, and obtaining mixed solution A.
Step two: and (3) taking the remaining half of deionized water, putting the deionized water into a reaction kettle, adjusting the temperature of the deionized water to 20 ℃, sequentially pouring the sodium dodecyl sulfate and the sodium gluconate in parts by weight into the reaction kettle, mixing and stirring at the stirring speed of 40-60 rpm and the stirring temperature of 15-20 ℃ for 10-15 minutes to obtain a mixed solution B.
Step three: and mixing the mixed solution A and the mixed solution B, stirring for 5-40 minutes at room temperature, and uniformly mixing to obtain the water-based paint.
4. The pre-plating environment-friendly synchronous wax and oil removing cleaning agent as claimed in claim 1, wherein the temperature in the first step is reduced to 35 ℃.
5. The pre-plating environment-friendly synchronous wax and oil removing cleaning agent as claimed in claim 1, wherein the stirring speed in the second step is 50 rpm.
6. The pre-plating environment-friendly synchronous wax and oil removing cleaning agent as claimed in claim 1, wherein the stirring in the third step is carried out for 20 minutes.
7. The pre-plating environment-friendly synchronous wax and oil removing cleaning agent as claimed in claim 1, wherein the use method is as follows:
adding 2-5 kg of the product into the ultrasonic cleaner every hundred liters of water, and heating to 55-70 ℃ for 2-8 minutes.
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| CN201910508269.3A CN111575754A (en) | 2019-06-13 | 2019-06-13 | Environment-friendly synchronous wax and oil removing cleaning agent before plating |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910508269.3A CN111575754A (en) | 2019-06-13 | 2019-06-13 | Environment-friendly synchronous wax and oil removing cleaning agent before plating |
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Application publication date: 20200825 |