CN106958015A - A kind of water-soluble high-efficient nickel plating antirust sealer and its compound method - Google Patents

A kind of water-soluble high-efficient nickel plating antirust sealer and its compound method Download PDF

Info

Publication number
CN106958015A
CN106958015A CN201710205452.7A CN201710205452A CN106958015A CN 106958015 A CN106958015 A CN 106958015A CN 201710205452 A CN201710205452 A CN 201710205452A CN 106958015 A CN106958015 A CN 106958015A
Authority
CN
China
Prior art keywords
parts
water
nickel plating
sealer
soluble high
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710205452.7A
Other languages
Chinese (zh)
Inventor
张开峰
陈立明
孙旭东
罗铁丰
邬立平
李炳生
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NINGBO LUO MUSIC Corp
Original Assignee
NINGBO LUO MUSIC Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NINGBO LUO MUSIC Corp filed Critical NINGBO LUO MUSIC Corp
Priority to CN201710205452.7A priority Critical patent/CN106958015A/en
Publication of CN106958015A publication Critical patent/CN106958015A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/05Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
    • C23C22/60Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using alkaline aqueous solutions with pH greater than 8
    • C23C22/62Treatment of iron or alloys based thereon
    • 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
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/05Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
    • C23C22/68Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous solutions with pH between 6 and 8
    • 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
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/82After-treatment
    • C23C22/83Chemical after-treatment

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

The invention discloses a kind of water-soluble high-efficient nickel plating antirust sealer and its compound method, belong to field of metal surface treatment technology.Characterized in that, the component and its mass fraction that 100 mass fraction sealers are included are as follows:6 10 parts of silicone acrylic emulsion of nanometer, 0.2 0.4 parts of BTA, 0.6 1.0 parts of sodium molybdate, 0.4 0.6 parts of sodium phytate, 0.05 0.10 parts of neopelex, tween(80)0.1 0.2 parts, 6.0 10.0 parts of ethanol, 1.0 2.0 parts of triethanolamine, deionized water surplus.The nickel plating antirust sealer rate of drying is fast, and cohesive force is strong, and film forming is fine and close, transparent, and water-fast, ageing-resistant performance is good, there is excellent decay resistance.

Description

A kind of water-soluble high-efficient nickel plating antirust sealer and its compound method
Technical field
The present invention relates to field of metal surface treatment technology, specially a kind of water-soluble high-efficient nickel plating antirust sealer and its Compound method.
Background technology
Many steel-iron components, for antirust and decoration needs, widely used nickel plating technology.Nickel coating on steel-iron components is Cathodic coating, only when coating does not have hole, can just play complete mechanical protection effect.And the imporous thickness one of nickel plating As more than 24 microns, price is high, and most parts are extremely difficult to.At present, thin bright nickel technique is generally plated using copper facing bottoming again.For Cost is reduced, bright nickel coating only has 4-5 microns, unavoidably there is hole.Corrosive medium is first rotten by copper substrate by hole Erosion, and then by iron matrix corrosion, coating decay resistance is not good, often need to be handled to improve its corrosion resistance with antirust sealer Energy.
Existing frequently-used nickel plating antirust sealer is divided to two major classes:One class is aqueous rustproof sealer.Existing many Chrome-free rings Nickel plating antirust sealer is protected to close for thin nickel dam, but majority can only meet neutral salt spray test requirement in 24 hours.It is another kind of to be Oil base antirust sealer, has preferably a more preferably antirust sealing effect than aqueous rustproof sealer, but there is smell, it is greasy, safe The problems such as.
The content of the invention
It is an object of the invention to provide a kind of water-soluble high-efficient nickel plating antirust sealer and its compound method, with solution State the problem of being proposed in background technology.
To achieve the above object, the present invention provides following technical scheme:
Sealer is characterised by, the component and its mass fraction that the sealers of 100 mass fractions is included are as follows:The breast of nano-silicon third 6-10 parts of liquid, 0.2-0.4 parts of BTA, 0.6-1.0 parts of sodium molybdate, 0.4-0.6 parts of sodium phytate, detergent alkylate sulphur Sour sodium 0.05-0.10 parts, tween(80)0.1-0.2 parts, 6.0-10.0 parts of ethanol, 1.0-2.0 parts of triethanolamine, deionization Water surplus.
Nanometer silicone acrylic emulsion is main film-forming component.Nanometer silicone acrylic emulsion be odorless, it is nontoxic, non-ignitable, corrosion-free, in weak base Property(pH7.5-9.0)Liquid, apply after metallized surfaces, rate of drying is fast, cohesive force is strong, and film forming is fine and close, transparent, water-fast, resistance to Good aging, good antirust sealing process is played to nickel coating hole.BTA is both the corrosion inhibiter of bottom copper, Also diaphragm can be combined to form with nickel metallic atom, improves the compactness and continuity of film.Sodium molybdate, sodium phytate are to steel and copper There is fine corrosion inhibition.Sodium molybdate and BTA also have synergy, strengthen corrosion mitigating effect.Neopelex It is anion surfactant, tween(80)Nonionic surfactant, collective effect favorably increase solution dispersiveness and Permeability, advantageously forms uniform rust-preventing film.Adding ethanol can help BTA to dissolve, and can also improve the infiltration of solution Property.Triethanolamine both plays corrosion inhibition, also plays regulation pH, pH value is maintained 8.0-9.0.
The nanometer silicone acrylic emulsion can be replaced with nanometer styrene-acrylic emulsion.The sodium molybdate can use ammonium molybdate, sodium tungstate or tungsten It is any in sour ammonium to replace.
The application method of the water-soluble high-efficient nickel plating antirust sealer:(1)Nickel plating part pre-treatment:Oil removing, washing;It is living Change is handled, washing;(2)Applying preventive by dipping sealer:Temperature room temperature;Time 5-10min;(3) dry:Spontaneously dry or 60-80 DEG C, 10-15min is toasted, transparent confinement film is formed.
The preparation steps of sealer are:
(1)The antirust sealer mass number prepared as needed first, each component is weighed by its component and its mass fraction;
(2)The nanometer silicone acrylic emulsion measured is added in about 1/2 deionized water, makes it fully miscible under agitation;
(3)BTA is added in ethanol, stirring and dissolving, adds step(2)In the solution of gained;
(4)By triethanolamine, sodium molybdate, sodium phytate, neopelex, tween(80)Be dissolved in successively about 1/3 go from In sub- water, it is well mixed, is added to above-mentioned steps(3)In resulting solution, it is stirred continuously, makes it fully miscible;
(5)Deionized water is added to give and sets mass number, static filtering can be prepared by finished product.
The step(2)、(3)、(4)、(5), carried out in stainless steel, glass or ceramic reactor.
Compared with prior art, the beneficial effects of the invention are as follows:The nickel plating antirust sealer rate of drying is fast, cohesive force By force, film forming is fine and close, transparent, and water-fast, ageing-resistant performance is good, there is excellent decay resistance.
Embodiment
The technical scheme in the embodiment of the present invention will be clearly and completely described below, it is clear that described implementation Example only a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, this area is common The every other embodiment that technical staff is obtained under the premise of creative work is not made, belongs to the model that the present invention is protected Enclose.
Method in following embodiments, unless otherwise instructed, is conventional method.
Component number content in following embodiments is the group in 100 mass fraction sealers unless otherwise instructed Divide mass fraction.
Embodiment 1
Component and its mass fraction include:10 parts of silicone acrylic emulsion of nanometer, 0.2 part of BTA, 1.0 parts of sodium molybdate, sodium phytate 0.5 part, 0.05 part of neopelex, tween(80)0.2 part, 10.0 parts of ethanol, 2.0 parts of triethanolamine, deionized water Surplus.
Prepare 1000g capping agent solutions steps as follows:(1)By component and its mass fraction, in 1000g aqueous sealant solutions It should add 100g nanometers of silicone acrylic emulsions, 2g BTAs, 10g sodium molybdates, 5g sodium phytates, 0.5g neopelexes, 2g tweens(80), 100g ethanol, 20g triethanolamines, balance deionized water;(2)By nanometer silicone acrylic emulsion be added to 300g go from In sub- water, make it fully miscible under agitation;(3)BTA is added in ethanol, stirring and dissolving, adds step(2) In the solution obtained;(4)By triethanolamine, sodium molybdate, sodium phytate, neopelex, tween(80), be successively dissolved in about In 300g deionized waters, it is well mixed, is added to above-mentioned steps(3)In resulting solution, being stirred continuously makes it fully miscible;(5) Deionized water is added to 1000g, static filtering produces this product.
Embodiment 2
Component and its mass fraction include:6.0 parts of styrene-acrylic emulsion of nanometer, 0.4 part of BTA, 0.6 part of ammonium molybdate, sodium phytate 0.6 part, 0.1 part of neopelex, tween(80)0.1 part, 6.0 parts of ethanol, 1.0 parts of triethanolamine, more than deionized water Amount.
1000g capping agent solutions step is prepared with example 1.
Embodiment 3
Component and its mass fraction include:8.0 parts of silicone acrylic emulsion of nanometer, 0.3 part of BTA, 1.0 parts of sodium tungstate, sodium phytate 0.5 part, 0.1 part of neopelex, tween(80)0.2 part, 7 parts of ethanol, 1.5 parts of triethanolamine, more than deionized water Amount.
1000g capping agent solutions step is prepared with example 1.
Comparative example
The nickel plating sample closed without antirust.
The sample of examples detailed above and comparative example:No. 20 carbon steel round pin (L50mm × D3mm) nickel plating(15-20 microns of bottom copper, 3-4 microns of nickel dam).
Sample antirust enclosure method:(1)Nickel plating part pre-treatment:Oil removing:Commercial metals cleaning agent 50g/L, 65-75 DEG C, Drum cleaning 30min, washing;Activation process:1min is soaked in 5% aqueous sulfuric acid, is washed;(2)Applying preventive by dipping sealer:Temperature 50 DEG C, time 10min;(3) dry:Sample drenches dry after taking out, and is put into 80 DEG C of baking ovens, toasts 10min, forms transparent confinement Film.
The decay resistance method of inspection and result:Salt method is tried using neutral salt spray.According to QB/T3832-99《Light industry Resultant metal corrosion of coating result of the test》Evaluate its decay resistance(Divide 10 grades, 10 grades are non-corroding).As a result it is as follows:
Sample 24h 48h 72h 96h
Example 1 10 grades 10 grades 7-9 grades 7-9 grades
Example 2 10 grades 7-9 grades 7-9 grades 6-8 grades
Example 3 10 grades 7-9 grades 7-9 grades 7-9 grades
Comparative example 3-4 grades Corrosion is serious
The above results show:After aqueous efficient nickel plating antirust sealer processing of the steel nickel plating part through the present invention, there is excellent Decay resistance.

Claims (6)

1. a kind of water-soluble high-efficient nickel plating antirust sealer, it is characterised in that component that the sealer of 100 mass fractions is included and Its mass fraction is as follows:6-10 parts of silicone acrylic emulsion of nanometer, 0.2-0.4 parts of BTA, 0.6-1.0 parts of sodium molybdate, phytic acid 0.4-0.6 parts of sodium, 0.05-0.10 parts of neopelex, tween(80)0.1-0.2 parts, 6.0-10.0 parts of ethanol, 1.0-2.0 parts of triethanolamine, deionized water surplus.
2. a kind of water-soluble high-efficient nickel plating antirust sealer, it is characterised in that preferably, the sealer of 100 mass fractions is included Component and its mass fraction it is as follows:10 parts of silicone acrylic emulsion of nanometer;0.2 part of BTA;1.0 parts of sodium molybdate;Sodium phytate 0.5 Part;0.05 part of neopelex;Tween(80)0.2 part;10.0 parts of ethanol;2.0 parts of triethanolamine;More than deionized water Amount.
3. the compound method of a kind of water-soluble high-efficient nickel plating antirust sealer according to claim 1, it is characterised in that match somebody with somebody Step processed is:
(1)The antirust sealer mass number prepared as needed first, each component is weighed by its component and its mass fraction;
(2)The nanometer silicone acrylic emulsion measured is added in about 1/2 deionized water, makes it fully miscible under agitation;
(3)BTA is added in ethanol, stirring and dissolving, adds step(2)In the solution of gained;
(4)By triethanolamine, sodium molybdate, sodium phytate, neopelex, tween(80)Be dissolved in successively about 1/3 go from In sub- water, it is well mixed, is added to above-mentioned steps(3)In resulting solution, it is stirred continuously, makes it fully miscible;
(5)Deionized water is added to give and sets mass number, static filtering can be prepared by finished product.
4. a kind of water-soluble high-efficient nickel plating antirust sealer according to claim 3 and its compound method, it is characterised in that The step(3)、(4)、(5), carried out in stainless steel, glass or ceramic reactor.
5. a kind of water-soluble high-efficient nickel plating antirust sealer according to claim 1, it is characterised in that the nano-silicon third Emulsion can be replaced with nanometer styrene-acrylic emulsion.
6. a kind of water-soluble high-efficient nickel plating antirust sealer according to claim 1, it is characterised in that the sodium molybdate can Replaced with any in ammonium molybdate, sodium tungstate or ammonium tungstate.
CN201710205452.7A 2017-03-31 2017-03-31 A kind of water-soluble high-efficient nickel plating antirust sealer and its compound method Pending CN106958015A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710205452.7A CN106958015A (en) 2017-03-31 2017-03-31 A kind of water-soluble high-efficient nickel plating antirust sealer and its compound method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710205452.7A CN106958015A (en) 2017-03-31 2017-03-31 A kind of water-soluble high-efficient nickel plating antirust sealer and its compound method

Publications (1)

Publication Number Publication Date
CN106958015A true CN106958015A (en) 2017-07-18

Family

ID=59471072

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710205452.7A Pending CN106958015A (en) 2017-03-31 2017-03-31 A kind of water-soluble high-efficient nickel plating antirust sealer and its compound method

Country Status (1)

Country Link
CN (1) CN106958015A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107313090A (en) * 2017-07-19 2017-11-03 深圳市钝化技术有限公司 Anti-corrosion electric nickel coating sealer
CN110965053A (en) * 2019-11-22 2020-04-07 中国航发西安动力控制科技有限公司 Acidic chemical nickel plating method and solution
CN110983244A (en) * 2019-11-21 2020-04-10 泰州市三定新材料科技有限公司 Environment-friendly high-corrosion-resistance zinc impregnation passivation solution
CN113463149A (en) * 2021-06-30 2021-10-01 惠州市安泰普表面处理科技有限公司 Sealing agent suitable for nickel electroplating layer and hole sealing method

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101195718A (en) * 2007-08-17 2008-06-11 王岚 Nano-aldehyde-removing confining liquid
CN101792922A (en) * 2010-04-12 2010-08-04 北京航空航天大学 Anticorrosive sealing liquid and method for sealing anodic oxide film containing copper-aluminium alloy by utilizing same
CN102732866A (en) * 2012-06-08 2012-10-17 汕头大学 Thermal-sprayed ceramic coating surface hole sealing method
CN103184406A (en) * 2013-03-19 2013-07-03 河海大学 Hybrid material hole sealing agent for improving corrosion resistance of plasma spraying coating in acid environment
CN103255462A (en) * 2013-04-17 2013-08-21 佛山科学技术学院 Environment-friendly hole sealing liquid for anodic aluminum oxide profiles and hole sealing method thereof
CN104498856A (en) * 2013-05-20 2015-04-08 李丽 High corrosion resistant electric arc spraying pure zinc coating hole sealing agent, preparation technology and application thereof
CN105908194A (en) * 2016-05-31 2016-08-31 安徽开林新材料股份有限公司 Treating agent for cleaning and corrosion-resistance of steel surface

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101195718A (en) * 2007-08-17 2008-06-11 王岚 Nano-aldehyde-removing confining liquid
CN101792922A (en) * 2010-04-12 2010-08-04 北京航空航天大学 Anticorrosive sealing liquid and method for sealing anodic oxide film containing copper-aluminium alloy by utilizing same
CN102732866A (en) * 2012-06-08 2012-10-17 汕头大学 Thermal-sprayed ceramic coating surface hole sealing method
CN103184406A (en) * 2013-03-19 2013-07-03 河海大学 Hybrid material hole sealing agent for improving corrosion resistance of plasma spraying coating in acid environment
CN103255462A (en) * 2013-04-17 2013-08-21 佛山科学技术学院 Environment-friendly hole sealing liquid for anodic aluminum oxide profiles and hole sealing method thereof
CN104498856A (en) * 2013-05-20 2015-04-08 李丽 High corrosion resistant electric arc spraying pure zinc coating hole sealing agent, preparation technology and application thereof
CN105908194A (en) * 2016-05-31 2016-08-31 安徽开林新材料股份有限公司 Treating agent for cleaning and corrosion-resistance of steel surface

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107313090A (en) * 2017-07-19 2017-11-03 深圳市钝化技术有限公司 Anti-corrosion electric nickel coating sealer
CN110983244A (en) * 2019-11-21 2020-04-10 泰州市三定新材料科技有限公司 Environment-friendly high-corrosion-resistance zinc impregnation passivation solution
CN110965053A (en) * 2019-11-22 2020-04-07 中国航发西安动力控制科技有限公司 Acidic chemical nickel plating method and solution
CN113463149A (en) * 2021-06-30 2021-10-01 惠州市安泰普表面处理科技有限公司 Sealing agent suitable for nickel electroplating layer and hole sealing method

Similar Documents

Publication Publication Date Title
CN106967971A (en) A kind of feature of environmental protection nickel plating antirust sealer and its compound method
CN106958015A (en) A kind of water-soluble high-efficient nickel plating antirust sealer and its compound method
US11248298B2 (en) Chromium-free surface-treated tinplate, production method and surface treating agent therefor
CN105839093B (en) A kind of electro-coppering room temperature chromium-free passivation liquid and its passivation technology
CN101135050B (en) Metasilicate cleaning inactivating process
CN105755456B (en) A kind of alkaline passivation liquid
CN109023335B (en) Film forming liquid for metal material surface conversion film and its use
CN105951062B (en) Nano-carbide enhances Ni-W-P composite deposites and its plating technology
CN107779713B (en) A kind of beryllium alumin(i)um alloy and preparation method thereof
CN107604371A (en) A kind of neutral rust remover and preparation method thereof
CN105018922A (en) Ferritic stainless steel processing method
CN104451634B (en) Aluminum and aluminum alloy passivation solution, preparation method and using method thereof
CN104562107A (en) Highly-corrosion-resistant environment-friendly black tin-cobalt alloy electroplating liquid and electroplating method thereof.
CN101525747B (en) Clean rare-earth salt passivation solution
CN107574430A (en) A kind of silicate bright blue passivation liquid and preparation method thereof
CN106756939A (en) aluminum passivation liquid and preparation method thereof
JPS58193376A (en) Plating bath for black chromate plating on zinc or cadmium surface and chromate plating process
US2272216A (en) Method of coating copper and its alloys
US2233422A (en) Method of coating copper and its alloys
CN1456706A (en) Tin cladding surface antioxidant and use process thereof
US2431728A (en) Treatment of ferrous metals to improve resistance to rusting
CN104099587A (en) Alkaline chemical plating Ni-P-PTFE plating solution and plating process thereof
CN108425145A (en) A kind of nontoxic copper and iron base silver decoating liquid and its withdrawal plating
CN101525748B (en) Clean rare-earth salt passive film
CN102242367B (en) Multifunctional novel ethylene diamine tetraacetic acid (EDTA) cleaning corrosion inhibitor

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20170718