CN104694946A - Phosphorus-free degreaser - Google Patents

Phosphorus-free degreaser Download PDF

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Publication number
CN104694946A
CN104694946A CN201510109437.3A CN201510109437A CN104694946A CN 104694946 A CN104694946 A CN 104694946A CN 201510109437 A CN201510109437 A CN 201510109437A CN 104694946 A CN104694946 A CN 104694946A
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China
Prior art keywords
water
grease
agent
sodium
percent
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Pending
Application number
CN201510109437.3A
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Chinese (zh)
Inventor
庞涛
程鹏
黄先球
郎丰军
马颖
周克飞
胡华东
陈园林
周诗正
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Wuhan Iron and Steel Co Ltd
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Wuhan Iron and Steel Group Corp
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Priority to CN201510109437.3A priority Critical patent/CN104694946A/en
Publication of CN104694946A publication Critical patent/CN104694946A/en
Pending legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C23COATING 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
    • C23GCLEANING OR DEGREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/14Cleaning or pickling metallic material with solutions or molten salts with alkaline solutions
    • C23G1/19Iron or steel

Abstract

The invention discloses a phosphorus-free degreaser. The phosphorus-free degreaser is prepared from the following raw materials in percentage by weight: 10-36 percent of sodium hydroxide, 0-25 percent of potassium hydroxide, 2-4 percent of sodium carbonate, 2-3 percent of sodium citrate, 2-4 percent of sodium gluconate, 0.5-2 percent of poly-aspartic acid, 0.8-3 percent of polyacrylic acid sodium salt, 0.8-4 percent of a nonionic surfactant and the balance of water. According to the phosphorus-free degreaser disclosed by the invention, saponification is carried out on the sodium hydroxide, the potassium hydroxide and oil; the sodium carbonate and the sodium citrate provide an alkaline condition; reaction is carried out on the sodium gluconate, the poly-aspartic acid and metal ions in the oil; and the polyacrylic acid sodium salt and the surfactants are capable of weakening the surface tension of water. A method provided by the invention is used for solving the technical problems of poor stability and environmental pollution of a degreaser in the prior art. The invention provides the phosphorus-free degreaser which is high storage stability and does not contain harmful elements including heavy metals, phosphorus and the like.

Description

A kind of agent of non-phosphate degreasing
Technical field
The present invention relates to steel rolling class chemical technology field, particularly relate to a kind of agent of non-phosphate degreasing.
Background technology
In cold-rolling galvanization process of producing product, degreasing is one of important technique.Cold-rolling process before zinc-plated needs to use the even antirust wet goods of emulsion in production, transport, storage and transport process, simultaneously product also may can be stained with some other pollutent as iron powder, dust, fingerprint etc. in the course of processing, therefore be with steel will carry out skimming treatment before zinc-plated, the degreasing degree on its surface will directly affect the quality of subsequent disposal.Good degreasing effect provides strong quality assurance by for subsequent technique process, reduce the generation of surface defects of products, particularly improve galvanizing production Zinc attachability, solidity to corrosion, zinc coating thickness homogeneity plays an important role on ensureing, therefore degreasing is very important operation.In recent years, along with Ge great steel mill galvanizing line process modification and equipment promote increasingly mature, introduce and use efficient grease-removing agent to become and improve one of galvanizing unit plate face cleaning quality most economical, effective means.
The use of grease-removing agent not only will consider cleansing power, also will consider its Safety and Environmental Protection, reduces the pollution to environment as far as possible, prevents clean-out system from damaging the health of operator.Have in industrial production in the past with an organic solvent or water base metal cleaning agent clean.Wherein, although organic solvent has very strong cleansing power, the dirt on easy clean metal surface, most of inflammable, volatile, waste mass energy, causes environmental pollution, has stronger pungency to the nervus centralis of human body.Wherein halogenated hydrocarbon toxicity is large, and self stability is poor, and havoc ozonosphere.And the phosphorus containg substances in water base metal cleaning agent component is discharged in river, river, lake and causes eutrophic pollution problem.For this reason, developing Phosphorus-Free Water-Based Cleaning Agent for Metals of good performance highly significant, is also a hot fields of domestic and international grease-removing agent.
To sum up, grease-removing agent of the prior art, existence and stability is poor, toxicity is large or large to environmental hazard, therefore the not tractable technical problem of sewage after cleaning.
Summary of the invention
The present invention, by providing a kind of agent of non-phosphate degreasing, solves grease-removing agent of the prior art, and the poor stability of existence, toxicity are large or large to environmental hazard, therefore the not tractable technical problem of sewage after cleaning.
The embodiment of the present application provides following technical scheme:
A kind of agent of non-phosphate degreasing, for cleaning grease, the raw material that described agent of non-phosphate degreasing comprises and weight percent are:
Sodium hydroxide 10% ~ 36%, potassium hydroxide 0% ~ 25%, sodium carbonate 2% ~ 4%, Trisodium Citrate 2% ~ 3%, Sunmorl N 60S 2% ~ 4%, poly aspartic acid 0.5% ~ 2%, polyacrylic acid sodium salt 0.8% ~ 3%, nonionogenic tenside 0.8% ~ 4%, anion surfactant 0.5% ~ 2%, surplus is water;
Wherein, described sodium hydroxide and described potassium hydroxide, for described grease generation saponification reaction, generate diffluent soap and glycerine;
Described sodium carbonate and described Trisodium Citrate provide alkaline environment, adhere to prevent the precipitation again of dirt in described grease;
Described Sunmorl N 60S and described poly aspartic acid are used for forming coordination compound with metal ion, to avoid the formation of water-fast heavy metal soap;
The lipophilic group of described polyacrylic acid sodium salt, described nonionogenic tenside and described anion surfactant adsorbs the dirt in described grease, hydrophilic radical is dissolved in described water, to reduce the surface tension of described water, improve the dissolved efficiency of the insoluble organic pollutant in described grease.。
Optionally, described water is de-salted water, to reduce the metal ion content in described water.
Optionally, described nonionogenic tenside is fatty alcohol ether nonionic surfactant.
Optionally, described anion surfactant is metal carboxylate anion surfactant.
The one or more technical schemes provided in the embodiment of the present application, at least have following technique effect or advantage:
The agent of non-phosphate degreasing that the embodiment of the present application provides, by alkaline matter sodium hydroxide and potassium hydroxide, with the vegetable and animals oils sticked on steel plate, mineral oil generation saponification reaction, generates diffluent soap and glycerine; By auxiliary cleaning agent sodium carbonate and Trisodium Citrate be washing assistant improve formula cleansing power and suitably reduce costs, alkaline environment is provided, and wetting, emulsification, suspension, dispersion spot dirt, prevent the precipitation again of dirt from adhering to, and a series of synergy can be there is with tensio-active agent, play active colloidal adsorption, improve the active function of tensio-active agent; By sequestrant Sunmorl N 60S and poly aspartic acid, coordination compound is formed with metal ions such as the iron in scavenging solution and grease soils, calcium and magnesium, reduce the possibility that lipid acid that these metal ions and fat saponification formed is combined into metallic soap, thus avoid the formation of water-fast heavy metal soap and again adhere to band steel and the problem that causes cleaning efficiency to decline, there is stronger removal ability for hard dirt; By polyacrylic acid sodium salt, nonionogenic tenside and anion surfactant when washing dirt, lipophilic group absorption dirt, hydrophilic radical is water-soluble, simultaneously due to the existence of these two kinds of groups, the surface tension of water significantly reduces, original immiscible oil and water are connected, making lipophilic group become fine particle together with dirt companion hydrophilic radical is scattered in water, reach the object of decontamination, and in cleaning process, play the effects such as wetting, infiltration, emulsification, solubilising, raising insoluble organic pollutant dissolved efficiency.
Namely, by composite in suitable ratio for the various additives such as a kind of tensio-active agent and dissimilar tensio-active agent, inorganic salt and polar organic compound, can synergistic effect be produced, thus play the effect improving the active and stability of metal cleaner and reduce costs.In addition, this grease-removing agent is to reduce premised on environmental pollution in the selection of raw material, and each component all not containing the harmful element such as heavy metal and phosphorus, effectively reduces environmental pollution.
Embodiment
The embodiment of the present application, by providing a kind of agent of non-phosphate degreasing, solves grease-removing agent of the prior art, and the poor stability of existence, toxicity are large or large to environmental hazard, therefore the not tractable technical problem of sewage after cleaning.Provide that a kind of stability is high, each composition toxicity of filling a prescription is low, after cleaning, sewage is easy to process, not containing the low cost agent of non-phosphate degreasing of the harmful element such as heavy metal and phosphorus.
For solving the problems of the technologies described above, the embodiment of the present application provides the general thought of technical scheme as follows:
The application provides a kind of agent of non-phosphate degreasing, and the raw material comprised and weight percent are:
Sodium hydroxide 10% ~ 36%, potassium hydroxide 0% ~ 25%, sodium carbonate 2% ~ 4%, Trisodium Citrate 2% ~ 3%, Sunmorl N 60S 2% ~ 4%, poly aspartic acid 0.5% ~ 2%, polyacrylic acid sodium salt 0.8% ~ 3%, nonionogenic tenside 0.8% ~ 4%, anion surfactant 0.5% ~ 2%.
The agent of non-phosphate degreasing that the embodiment of the present application provides, by composite in suitable ratio for the various additives such as a kind of tensio-active agent and dissimilar tensio-active agent, inorganic salt and polar organic compound, can synergistic effect be produced, thus play the effect improving the active and stability of metal cleaner and reduce costs.In addition, this grease-removing agent is to reduce premised on environmental pollution in the selection of raw material, and each component all not containing the harmful element such as heavy metal and phosphorus, effectively reduces environmental pollution.
In order to better understand technique scheme, below in conjunction with concrete embodiment, technique scheme is described in detail, the specific features being to be understood that in the embodiment of the present invention and embodiment is the detailed description to technical scheme, instead of the restriction to technical scheme, when not conflicting, the technical characteristic in the embodiment of the present application and embodiment can combine mutually.
Embodiment one
Get sodium hydroxide 10%, sodium carbonate 2%, Trisodium Citrate 2%, Sunmorl N 60S 2%, poly aspartic acid 0.5%, polyacrylic acid sodium salt 0.8%, fatty alcohol ether nonionic surfactant 0.8%, metal carboxylate anion surfactant 0.8%, de-salted water 81.1% by weight.After being mixed by these raw materials, make the concentrated solution of grease-removing agent.During use, by concentrated solution dilution for massfraction is the working fluid of 3%, test by standard method JB/T 4323.2-19999, this working fluid cleansing power is 97%, and the cold-rolled steel sheet plate face reflectivity 89% after degreasing, surface of steel plate residue is less than 10mg/m 2.
Specifically, the principle using described grease-removing agent to clean grease is:
By sodium hydroxide, and/or the alkaline matter such as potassium hydroxide, with the vegetable and animals oils sticked on steel plate, mineral oil generation saponification reaction, generate diffluent soap and glycerine; Concrete saponification reaction equation can be as follows:
CH2OOCR
|
CHOOCR+3NaOH→3R-COONa+CH2OH-CHOH-CH2OH
|
CH2OOCR
Wherein, R-COONa is soap, is easy to water-soluble, and CH2OH-CHOH-CH2OH is glycerine, is also easy to water-soluble, thus is convenient to the cleaning of grease.
Further, auxiliary cleaning agent sodium carbonate and Trisodium Citrate can improve the cleansing power of formula, suitably reduce costs, provide alkaline environment, and wetting, emulsification, suspension, dispersion spot dirt, prevent the precipitation again of dirt from adhering to,
Specifically, can there is hydrolysis reaction in sodium carbonate in water, and the metal ions such as the calcium of its carbonate in water, magnesium are combined softening water hardness; Citrate and the calcium binding of Trisodium Citrate then become soluble complexes with softening water hardness;
And sodium carbonate and Trisodium Citrate a series of synergy can occur with tensio-active agent, play active colloidal adsorption, improve the active function of tensio-active agent.
Further, sequestrant Sunmorl N 60S and poly aspartic acid, coordination compound can be formed with metal ions such as the iron in scavenging solution and grease soils, calcium and magnesium, reduce the possibility that lipid acid that these metal ions and fat saponification formed is combined into metallic soap, thus avoid the formation of water-fast heavy metal soap and again adhere to band steel and the problem that causes cleaning efficiency to decline, there is stronger removal ability for hard dirt;
Specifically, because sequestrant has extremely strong capturing ability and dispersion effect to metal ion.Sequestering action can be there is in quite wide pH value range with multiple polyvalent metal ions such as calcium, magnesium, lead, zinc, iron, chromium, form more stable water soluble complex, thus reduce the possibility that lipid acid that these metal ions and fat saponification formed is combined into metallic soap.
In the embodiment of the present application, described water is de-salted water, to reduce the metal ion content in described water, avoids the formation of heavy metal soap further.
Certainly, in specific implementation process, described surplus also can be pure water.
Further, by polyacrylic acid sodium salt, nonionogenic tenside and anion surfactant when washing dirt, lipophilic group absorption dirt, hydrophilic radical is water-soluble, simultaneously due to the existence of these two kinds of groups, the surface tension of water significantly reduces, original immiscible oil and water are connected, making lipophilic group become fine particle together with dirt companion hydrophilic radical is scattered in water, reach the object of decontamination, and in cleaning process, play the effects such as wetting, infiltration, emulsification, solubilising, raising insoluble organic pollutant dissolved efficiency.
And, nonionogenic tenside and anion surfactant composite after, the advantage of two kinds of tensio-active agents can be had, further can also produce ultralow interfacial tension, strengthen soil removability.
In the embodiment of the present application, described nonionogenic tenside is fatty alcohol ether nonionic surfactant.
In the embodiment of the present application, described anion surfactant is metal carboxylate anion surfactant.
Described fatty alcohol ether nonionic surfactant and described metal carboxylate anion surfactant are and can buy, lower-cost tensio-active agent.
Embodiment two
Get sodium hydroxide 36%, potassium hydroxide 25%, sodium carbonate 4%, Trisodium Citrate 3%, Sunmorl N 60S 4%, poly aspartic acid 2%, polyacrylic acid sodium salt 3%, fatty alcohol ether nonionic surfactant 4%, metal carboxylate anion surfactant 2%, de-salted water 17% by weight.After being mixed by these raw materials, make concentrated solution.During use, by concentrated solution dilution for massfraction is the working fluid of 3%, test by standard method JB/T 4323.2-19999, this working fluid cleansing power is 97%, and the cold-rolled steel sheet plate face reflectivity 89% after degreasing, surface of steel plate residue is less than 10mg/m 2.
In the present embodiment, the principle of grease-removing agent cleaning grease, identical with the principle that grease-removing agent in embodiment one cleans grease, succinct in order to specification sheets, has just been not repeated at this.
Embodiment three
Get sodium hydroxide 10%, potassium hydroxide 25%, sodium carbonate 3.2%, Trisodium Citrate 2%, Sunmorl N 60S 3%, poly aspartic acid 1.3%, polyacrylic acid sodium salt 2.1%, fatty alcohol ether nonionic surfactant 1.8%, metal carboxylate anion surfactant 0.8%, de-salted water 50.8% by weight.After being mixed by these raw materials, make concentrated solution.During use, by concentrated solution dilution for massfraction is the working fluid of 3%, test by standard method JB/T 4323.2-19999, this working fluid cleansing power is 98.1%, and the cold-rolled steel sheet plate face reflectivity 90% after degreasing, surface of steel plate residue is less than 10mg/m 2.
In the present embodiment, the principle of grease-removing agent cleaning grease, identical with the principle that grease-removing agent in embodiment one cleans grease, succinct in order to specification sheets, has just been not repeated at this.
Embodiment four
Get sodium hydroxide 12%, potassium hydroxide 24%, sodium carbonate 3%, Trisodium Citrate 2.4%, Sunmorl N 60S 2.8%, poly aspartic acid 1.6%, polyacrylic acid sodium salt 2.2%, fatty alcohol ether nonionic surfactant 2.9%, metal carboxylate anion surfactant 0.7%, de-salted water 48.4% by weight.After being mixed by these raw materials, make concentrated solution.During use, by concentrated solution dilution for massfraction is the working fluid of 3%, test by standard method JB/T 4323.2-19999, this working fluid cleansing power is 97.3%, and the cold-rolled steel sheet plate face reflectivity 89% after degreasing, surface of steel plate residue is less than 10mg/m 2.
In the present embodiment, the principle of grease-removing agent cleaning grease, identical with the principle that grease-removing agent in embodiment one cleans grease, succinct in order to specification sheets, has just been not repeated at this.
Embodiment five
Get sodium hydroxide 25%, potassium hydroxide 10%, sodium carbonate 3.2%, Trisodium Citrate 2%, Sunmorl N 60S 3.2%, poly aspartic acid 1.5%, polyacrylic acid sodium salt 1.2%, fatty alcohol ether nonionic surfactant 3.7%, metal carboxylate anion surfactant 1.1%, de-salted water 49.1% by weight.After being mixed by these raw materials, make concentrated solution.During use, by concentrated solution dilution for massfraction is the working fluid of 3%, test by standard method JB/T 4323.2-19999, this working fluid cleansing power is 98.0%, and the cold-rolled steel sheet plate face reflectivity 89% after degreasing, surface of steel plate residue is less than 9mg/m 2.
In the present embodiment, the principle of grease-removing agent cleaning grease, identical with the principle that grease-removing agent in embodiment one cleans grease, succinct in order to specification sheets, has just been not repeated at this.
Embodiment six
Get sodium hydroxide 28%, potassium hydroxide 7%, sodium carbonate 3%, Trisodium Citrate 2.4%, Sunmorl N 60S 3.5%, poly aspartic acid 0.8%, polyacrylic acid sodium salt 2.2%, fatty alcohol ether nonionic surfactant 2%, metal carboxylate anion surfactant 1.1%, de-salted water 50% by weight.After being mixed by these raw materials, make concentrated solution.During use, by concentrated solution dilution for massfraction is the working fluid of 3%, test by standard method JB/T 4323.2-19999, this working fluid cleansing power is 98.6%, and the cold-rolled steel sheet plate face reflectivity 91% after degreasing, surface of steel plate residue is less than 8mg/m 2.
In the present embodiment, the principle of grease-removing agent cleaning grease, identical with the principle that grease-removing agent in embodiment one cleans grease, succinct in order to specification sheets, has just been not repeated at this.
Embodiment seven
Get sodium hydroxide 35%, sodium carbonate 3%, Trisodium Citrate 2.4%, Sunmorl N 60S 3%, poly aspartic acid 0.9%, polyacrylic acid sodium salt 2.4%, fatty alcohol ether nonionic surfactant 2.8%, metal carboxylate anion surfactant 0.7%, de-salted water 49.8% by weight.After being mixed by these raw materials, make concentrated solution.During use, by concentrated solution dilution for massfraction is the working fluid of 3%, test by standard method JB/T4323.2-19999, this working fluid cleansing power is 98.8%, and the cold-rolled steel sheet plate face reflectivity 91% after degreasing, surface of steel plate residue is less than 8mg/m 2.
In the present embodiment, the principle of grease-removing agent cleaning grease, identical with the principle that grease-removing agent in embodiment one cleans grease, succinct in order to specification sheets, has just been not repeated at this.
The use of grease-removing agent of the present invention, goes for various cleaning way, such as ultrasonic wave, spray, electrolysis or scrub.
Technical scheme in above-mentioned the embodiment of the present application, at least has following technique effect or advantage:
By alkaline matter sodium hydroxide and potassium hydroxide, with the vegetable and animals oils sticked on steel plate, mineral oil generation saponification reaction, generate diffluent soap and glycerine; By auxiliary cleaning agent sodium carbonate and Trisodium Citrate be washing assistant improve formula cleansing power and suitably reduce costs, alkaline environment is provided, and wetting, emulsification, suspension, dispersion spot dirt, prevent the precipitation again of dirt from adhering to, and a series of synergy can be there is with tensio-active agent, play active colloidal adsorption, improve the active function of tensio-active agent; By sequestrant Sunmorl N 60S and poly aspartic acid, coordination compound is formed with metal ions such as the iron in scavenging solution and dirt, calcium and magnesium, reduce the possibility that lipid acid that these metal ions and fat saponification formed is combined into metallic soap, thus avoid the formation of water-fast heavy metal soap and again adhere to band steel and the problem that causes cleaning efficiency to decline; By polyacrylic acid sodium salt, nonionogenic tenside and anion surfactant when washing dirt, lipophilic group absorption dirt, hydrophilic radical is water-soluble, simultaneously due to the existence of these two kinds of groups, the surface tension of water significantly reduces, original immiscible oil and water are connected, makes lipophilic group become fine particle together with dirt companion hydrophilic radical and be scattered in water, reach the object of decontamination.
Composite in suitable ratio by various additives such as a kind of tensio-active agent and dissimilar tensio-active agent, inorganic salt and polar organic compounds, can synergistic effect be produced, thus play the effect improving the active and stability of metal cleaner and reduce costs.In addition, this grease-removing agent is to reduce premised on environmental pollution in the selection of raw material, and each component all not containing the harmful element such as heavy metal and phosphorus, effectively reduces environmental pollution.
Although describe the preferred embodiments of the present invention, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.

Claims (4)

1. an agent of non-phosphate degreasing, for cleaning grease, is characterized in that, the raw material that described agent of non-phosphate degreasing comprises and weight percent are:
Sodium hydroxide 10% ~ 36%, potassium hydroxide 0% ~ 25%, sodium carbonate 2% ~ 4%, Trisodium Citrate 2% ~ 3%, Sunmorl N 60S 2% ~ 4%, poly aspartic acid 0.5% ~ 2%, polyacrylic acid sodium salt 0.8% ~ 3%, nonionogenic tenside 0.8% ~ 4%, anion surfactant 0.5% ~ 2%, surplus is water;
Wherein, described sodium hydroxide and described potassium hydroxide, for described grease generation saponification reaction, generate diffluent soap and glycerine;
Described sodium carbonate and described Trisodium Citrate provide alkaline environment, adhere to prevent the precipitation again of dirt in described grease;
Described Sunmorl N 60S and described poly aspartic acid are used for forming coordination compound with the metal ion in described grease, avoid the formation of water-fast heavy metal soap;
Lipophilic group in described polyacrylic acid sodium salt, described nonionogenic tenside and described anion surfactant adsorbs the dirt in described grease, hydrophilic radical is dissolved in described water, to reduce the surface tension of described water, improve the dissolved efficiency of the insoluble organic pollutant in described grease.
2. agent of non-phosphate degreasing as claimed in claim 1, it is characterized in that, described water is de-salted water, to reduce the metal ion content in described water.
3. agent of non-phosphate degreasing as claimed in claim 1, it is characterized in that, described nonionogenic tenside is fatty alcohol ether nonionic surfactant.
4. agent of non-phosphate degreasing as claimed in claim 1, it is characterized in that, described anion surfactant is metal carboxylate anion surfactant.
CN201510109437.3A 2015-03-13 2015-03-13 Phosphorus-free degreaser Pending CN104694946A (en)

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CN105220166A (en) * 2015-09-28 2016-01-06 武汉钢铁(集团)公司 A kind of painting dressing automobiles Environment-friendlydegreasant degreasant and using method thereof
CN105483726A (en) * 2015-11-30 2016-04-13 武汉奥克特种化学有限公司 Efficient low-foam normal-temperature phosphorous-free oil removing liquid
CN106929871A (en) * 2017-02-17 2017-07-07 上海蔚来汽车有限公司 A kind of automobile component surface treatment grease removing composition
CN107313060A (en) * 2017-06-30 2017-11-03 苏州日新水性涂料有限公司 A kind of Al-Zn coated steel degreaser
CN107354472A (en) * 2017-07-20 2017-11-17 许华定 Environment-Protect Metal Cleaning Agents and preparation method thereof
CN107541738A (en) * 2017-07-17 2018-01-05 华意压缩机股份有限公司 Cleaning before a kind of Dimensions Used in Shell of Refrigerator Compressor weldering
CN107955760A (en) * 2017-11-25 2018-04-24 蚌埠市福沃特车轮制造科技有限公司 A kind of pre- degreasing cleaning fluid of wheel hub
CN110331410A (en) * 2019-06-28 2019-10-15 温州万众表面处理技术有限公司 Without phosphorus cleaning agent of metal universal type aqueous, environmental protective and preparation method thereof and the sealing agitator tank used

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CN102965680A (en) * 2012-11-26 2013-03-13 安徽长青电子机械(集团)有限公司 Phosphorus-free oil removing process
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105220166A (en) * 2015-09-28 2016-01-06 武汉钢铁(集团)公司 A kind of painting dressing automobiles Environment-friendlydegreasant degreasant and using method thereof
CN105483726A (en) * 2015-11-30 2016-04-13 武汉奥克特种化学有限公司 Efficient low-foam normal-temperature phosphorous-free oil removing liquid
CN106929871A (en) * 2017-02-17 2017-07-07 上海蔚来汽车有限公司 A kind of automobile component surface treatment grease removing composition
CN107313060A (en) * 2017-06-30 2017-11-03 苏州日新水性涂料有限公司 A kind of Al-Zn coated steel degreaser
CN107541738A (en) * 2017-07-17 2018-01-05 华意压缩机股份有限公司 Cleaning before a kind of Dimensions Used in Shell of Refrigerator Compressor weldering
CN107354472A (en) * 2017-07-20 2017-11-17 许华定 Environment-Protect Metal Cleaning Agents and preparation method thereof
CN107955760A (en) * 2017-11-25 2018-04-24 蚌埠市福沃特车轮制造科技有限公司 A kind of pre- degreasing cleaning fluid of wheel hub
CN110331410A (en) * 2019-06-28 2019-10-15 温州万众表面处理技术有限公司 Without phosphorus cleaning agent of metal universal type aqueous, environmental protective and preparation method thereof and the sealing agitator tank used

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