CN108914168A - A kind of sheet metal surface treatment process - Google Patents
A kind of sheet metal surface treatment process Download PDFInfo
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- CN108914168A CN108914168A CN201810861874.4A CN201810861874A CN108914168A CN 108914168 A CN108914168 A CN 108914168A CN 201810861874 A CN201810861874 A CN 201810861874A CN 108914168 A CN108914168 A CN 108914168A
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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
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/22—Electroplating: Baths therefor from solutions of zinc
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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
- C23C—COATING 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
- C23C22/00—Chemical 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
- C23C22/05—Chemical 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
- C23C22/06—Chemical 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 acidic solutions with pH less than 6
- C23C22/07—Chemical 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 acidic solutions with pH less than 6 containing phosphates
- C23C22/08—Orthophosphates
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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
- C23C—COATING 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
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
- C23C28/32—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer
- C23C28/322—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer only coatings of metal elements only
- C23C28/3225—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer only coatings of metal elements only with at least one zinc-based layer
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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
- C23C—COATING 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
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
- C23C28/34—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates
-
- 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
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F3/00—Brightening metals by chemical means
- C23F3/04—Heavy metals
- C23F3/06—Heavy metals with acidic solutions
-
- 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
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/025—Cleaning or pickling metallic material with solutions or molten salts with acid solutions acidic pickling pastes
-
- 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
- C23G5/00—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents
- C23G5/02—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents
- C23G5/032—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents containing oxygen-containing compounds
-
- 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
-
- 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
- C25D5/48—After-treatment of electroplated surfaces
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Electrochemistry (AREA)
- Inorganic Chemistry (AREA)
- Electroplating Methods And Accessories (AREA)
Abstract
The invention discloses a kind of sheet metal treatment process, carry out surface impurity clearing process to sheet metal first, and the surface impurity clearing process specifically comprises the following steps：Surface clean, acidleach processing, blasting treatment, drying process；After the completion of surface impurity removes work, surface coating process is carried out, the surface coating process includes the following steps：Zinc-plated, chemical polishing, Passivation Treatment, drying and processing.Sheet metal surface treatment process provided by the invention carries out specially treated to sheet metal first before zinc-plated processing, removes surface impurity, and carry out blasting treatment, improves sheet metal surface characteristic；Chemical polishing and Passivation Treatment have been carried out after zinc-plated, are made subsequent zinc coat that there is maximum adhesive force in sheet metal surface, are improved the quality of coating.
Description
Technical field
The present invention relates to a kind of sheet metal surface treatment process, belong to sheet metal processing technique field.
Background technique
The metal material is pure metal and its alloy on ordinary meaning, is the basic material for constituting modern civilization society
One of.And common metal material the problems such as will appear aging, corrosion when using in the natural environment, and then seriously affect it and make
With characteristic, it is therefore desirable to carry out the surface treatment such as anti-corrosion.Zinc-plated is a kind of common process of surface treatment, electrogalvanizing sheet metal
Also it is widely used in household electrical appliances, automobile and the field of building materials.But there are still deficiencies for existing galvanizing technique, lead to zinc coat
Softer, processability is poor.
Summary of the invention
Purpose：In order to overcome the deficiencies in the prior art, the present invention provides a kind of sheet metal surface treatment process.
Technical solution：In order to solve the above technical problems, the technical solution adopted by the present invention is：
A kind of sheet metal surface treatment process carries out surface impurity clearing process, the surface impurity to sheet metal first
Clearing process specifically comprises the following steps,
S1.1, surface clean：Sheet metal is first put into chemical degreasing liquid to and is carried out 10 ~ 15min of ultrasonic treatment, is then taken out
It is rinsed, is finally stood spare after draining surface moisture with clear water；
S1.2, acidleach processing：By step S1.1, treated that sheet metal is put into 8 ~ 13min of immersion treatment in acid solution, then takes
It is rinsed, is stood spare after draining surface moisture with clear water out；
S1.3, blasting treatment：By step S1.2, treated that sheet metal is put into sandblasting instrument carries out blasting treatment, during which
The pressure for controlling sandblasting is 0.5 ~ 0.55MPa, is after the completion taken out sheet metal spare；
S1.4 is dried：Sheet metal successively Jing Guo above three step process is put into drying box, place is dried
It manages, is taken out after 1 ~ 2h；
After the completion of surface impurity removes work, surface coating process is carried out, the surface coating process includes the following steps,
S2.1, it is zinc-plated：Carry out zinc-plated processing will be put it into electroplating bath by the sheet metal of above-mentioned steps S1.1 to S1.4 processing,
It is washed three times after the completion；Wherein, plating solution formula is in electroplating bath：Sodium hydroxide 110g/L, zinc oxide 10g/L, alkalinity
Zinc-plating additive 5ml/L, in alkaline zinc plating additive, brightener concentration 5ml/L, auxiliary additive concentration is 5ml/L；
S2.2, chemical polishing：Mobile at least 5 in the nitric acid liquid for being 3% by step S2.1 treated sheet metal is put into concentration
Second；It then takes out and cleans in the sink at least twice；
S2.3, Passivation Treatment：By step S2.2 treated sheet metal is put into passivator solution 15 ~ 25min of immersion, then
Taking-up is rinsed with clear water；
S2.4, drying and processing：Metal plate after Passivation Treatment is rinsed with clear water again, is then placed in drying box at drying
It manages, is taken out after 1 ~ 2h.
Preferably, chemical degreasing liquid described in step S1.1 is acetone.
Preferably, acid solution described in step S1.2 is 15% nitric acid solution.
Preferably, the granular size that blast media is controlled when blasting treatment described in step S1.3 is 0.6 ~ 0.75mm,
Spray angle and workpiece surface are in 90 °, and nozzle is 100 ~ 105mm at a distance from workpiece surface.
Preferably, in step S2.1, controlling the current density in electroplating bath is 2A/dm2, ambient operation, electroplating time is extremely
Few 10min.
Preferably, the passivator that Passivation Treatment described in step S2.3 uses includes following component：2 parts of phosphoric acid, 1 portion of dye yam
Slag extract, 1.2 parts of dodecyl sodium sulfates, 2.3 parts of vinyltrimethoxysilanes, 0.9 part of trimethyl bromination
Ammonium, 8.2 parts of 1-hydroxy ethylidene-1,1-diphosphonic acids, 1.2 parts of succinic acid alkyl ester sulfonate sodium, 0.7 part of sodium chlorate, 38 parts of deionized waters.
Preferably, step S1.4, the temperature of drying box described in S2.4 is controlled at 80 ~ 85 DEG C.
Beneficial effect：Sheet metal surface treatment process provided by the invention, before zinc-plated processing first to sheet metal into
Row specially treated removes surface impurity, and carries out blasting treatment, improves sheet metal surface characteristic；Chemistry has been carried out after zinc-plated
Polishing and Passivation Treatment make subsequent zinc coat have maximum adhesive force in sheet metal surface, improve the quality of coating.
Specific embodiment
Below with reference to embodiment, the present invention will be further explained.
Embodiment
A kind of sheet metal surface treatment process carries out surface impurity clearing process, the surface to sheet metal first
Impurity clearing process specifically comprises the following steps：
S1.1, surface clean：Sheet metal is first put into chemical degreasing liquid to and is carried out 10 ~ 15min of ultrasonic treatment, is then taken out
It is rinsed, is finally stood spare after draining surface moisture with clear water；
The chemical degreasing liquid is acetone.
S1.2, acidleach processing：By step S1.1, treated that sheet metal is put into 8 ~ 13min of immersion treatment in acid solution, so
Taking-up is rinsed with clear water afterwards, is stood spare after draining surface moisture；
The acid solution is 15% nitric acid solution.
S1.3, blasting treatment：By step S1.2, treated that sheet metal is put into sandblasting instrument carries out blasting treatment,
The pressure that period controls sandblasting is 0.5 ~ 0.55MPa, is after the completion taken out sheet metal spare；
The granular size of control blast media is 0.6 ~ 0.75mm when the described blasting treatment, and spray angle is in workpiece surface
90 °, nozzle is 100 ~ 105mm at a distance from workpiece surface.
S1.4 is dried：Sheet metal successively Jing Guo above three step process is put into drying box and is done
Dry processing is taken out after 1 ~ 2h；The temperature of drying box is controlled at 80 ~ 85 DEG C.
After the completion of surface impurity removes work, surface coating process is carried out, the surface coating process includes the following steps：
S2.1, it is zinc-plated：Carry out zinc-plated processing will be put it into electroplating bath by the sheet metal of above-mentioned steps S1.1 to S1.4 processing,
It is washed three times after the completion；Wherein, plating solution formula is in electroplating bath：Sodium hydroxide 110g/L, zinc oxide 10g/L, alkalinity
Zinc-plating additive 5ml/L, in alkaline zinc plating additive, brightener concentration 5ml/L, auxiliary additive concentration is 5ml/L；
In electroplating process, controlling the current density in electroplating bath is 2A/dm2, ambient operation, electroplating time at least 10min.
S2.2, chemical polishing：It is moved in the nitric acid liquid for being 3% by step S2.1 treated sheet metal is put into concentration
It is 5 seconds few；It then takes out and cleans in the sink at least twice.
S2.3, Passivation Treatment：By step S2.2 treated sheet metal is put into passivator solution 15 ~ 25min of immersion,
It then takes out and is rinsed with clear water；
Passivator used in Passivation Treatment includes following component：2 parts of phosphoric acid, 1 part of dye yam slag extract, 1.2 parts of dodecyl sodium sulfonates
Sodium, 2.3 parts of vinyltrimethoxysilanes, 0.9 part of dodecyl trimethyl ammonium bromide, 8.2 parts of 1-hydroxy ethylidene-1,1-diphosphonic acids, 1.2
Part succinic acid alkyl ester sulfonate sodium, 0.7 part of sodium chlorate, 38 parts of deionized waters.
S2.4, drying and processing：Metal plate after Passivation Treatment is rinsed with clear water again, is then placed in drying in drying box
It handles, is taken out after 1 ~ 2h；The temperature of drying box is controlled at 80 ~ 85 DEG C.
By above-mentioned removal of impurities, coating process processing, can be formed in sheet metal surface has the quality of maximum adhesion power
Different zinc coat.
The above is only a preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (7)
1. a kind of sheet metal surface treatment process, it is characterised in that：Surface impurity clearing process is carried out to sheet metal first,
The surface impurity clearing process specifically comprises the following steps,
S1.1, surface clean：Sheet metal is first put into chemical degreasing liquid to and is carried out 10 ~ 15min of ultrasonic treatment, is then taken out
It is rinsed, is finally stood spare after draining surface moisture with clear water；
S1.2, acidleach processing：By step S1.1, treated that sheet metal is put into 8 ~ 13min of immersion treatment in acid solution, then takes
It is rinsed, is stood spare after draining surface moisture with clear water out；
S1.3, blasting treatment：By step S1.2, treated that sheet metal is put into sandblasting instrument carries out blasting treatment, during which
The pressure for controlling sandblasting is 0.5 ~ 0.55MPa, is after the completion taken out sheet metal spare；
S1.4 is dried：Sheet metal successively Jing Guo above three step process is put into drying box, place is dried
It manages, is taken out after 1 ~ 2h；
After the completion of surface impurity removes work, surface coating process is carried out, the surface coating process includes the following steps,
S2.1, it is zinc-plated：Carry out zinc-plated processing will be put it into electroplating bath by the sheet metal of above-mentioned steps S1.1 to S1.4 processing,
It is washed three times after the completion；Wherein, plating solution formula is in electroplating bath：Sodium hydroxide 110g/L, zinc oxide 10g/L, alkalinity
Zinc-plating additive 5ml/L, in alkaline zinc plating additive, brightener concentration 5ml/L, auxiliary additive concentration is 5ml/L；
S2.2, chemical polishing：Mobile at least 5 in the nitric acid liquid for being 3% by step S2.1 treated sheet metal is put into concentration
Second；It then takes out and cleans in the sink at least twice；
S2.3, Passivation Treatment：By step S2.2 treated sheet metal is put into passivator solution 15 ~ 25min of immersion, then
Taking-up is rinsed with clear water；
S2.4, drying and processing：Metal plate after Passivation Treatment is rinsed with clear water again, is then placed in drying box at drying
It manages, is taken out after 1 ~ 2h.
2. sheet metal surface treatment process according to claim 1, it is characterised in that：Chemistry described in step S1.1
Degreasing fluid is acetone.
3. sheet metal surface treatment process according to claim 1, it is characterised in that：Acid solution described in step S1.2
For 15% nitric acid solution.
4. sheet metal surface treatment process according to claim 1, it is characterised in that：Sandblasting described in step S1.3
The granular size that blast media is controlled when processing is 0.6 ~ 0.75mm, and spray angle and workpiece surface are in 90 °, nozzle and workpiece table
The distance in face is 100 ~ 105mm.
5. sheet metal surface treatment process according to claim 1, it is characterised in that：In step S2.1, control plating
Current density in slot is 2A/dm2, ambient operation, electroplating time at least 10min.
6. sheet metal surface treatment process according to claim 1, it is characterised in that：In the step S2.3 at passivation
Managing passivator used includes following component：2 parts of phosphoric acid, 1 part of dye yam slag extract, 1.2 parts of dodecyl sodium sulfates, 2.3 parts of second
Alkenyl trimethoxy silane, 0.9 part of dodecyl trimethyl ammonium bromide, 8.2 parts of 1-hydroxy ethylidene-1,1-diphosphonic acids, 1.2 parts of succinic acid alkane
Base ester sodium sulfonate, 0.7 part of sodium chlorate, 38 parts of deionized waters.
7. sheet metal surface treatment process according to claim 1, it is characterised in that：Step S1.4, described in S2.4
Drying box temperature control at 80 ~ 85 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810861874.4A CN108914168A (en) | 2018-08-01 | 2018-08-01 | A kind of sheet metal surface treatment process |
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| CN201810861874.4A CN108914168A (en) | 2018-08-01 | 2018-08-01 | A kind of sheet metal surface treatment process |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109609900A (en) * | 2018-12-27 | 2019-04-12 | 保定市胜新金属表面处理有限公司 | A kind of aftertreatment technology on energy-saving and environment-friendly metal zincizing surface |
| CN110923730A (en) * | 2019-12-04 | 2020-03-27 | 嘉善永金金属制品有限公司 | Cleaning process for metal piece |
| CN110938843A (en) * | 2019-12-10 | 2020-03-31 | 隆昌山川精密焊管有限责任公司 | Large stamping part galvanizing process |
| CN110983388A (en) * | 2019-11-06 | 2020-04-10 | 苏州胜禹材料科技股份有限公司 | Electrogalvanizing plate with high surface quality for television backboard and production method thereof |
| CN111055170A (en) * | 2020-01-14 | 2020-04-24 | 诸暨市领诚信息技术有限公司 | Metal material surface polishing treatment method |
| CN112605039A (en) * | 2020-12-08 | 2021-04-06 | 富乐德科技发展（天津）有限公司 | Cleaning method for removing metal conductive film on surface of molybdenum material |
| CN114058230A (en) * | 2021-12-07 | 2022-02-18 | 深圳市美瑞金属材料有限公司 | Aluminum material with good corrosion resistance based on continuous surface treatment and preparation method thereof |
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| CN103215578A (en) * | 2013-03-27 | 2013-07-24 | 佛山市中国地质大学研究院 | Metal passivant prepared from diosorea cirrhosa residue extracting liquid |
| CN106350803A (en) * | 2016-08-29 | 2017-01-25 | 常熟市虞东磷化材料有限公司 | Passivator for metal plates |
| CN108031634A (en) * | 2017-11-30 | 2018-05-15 | 安徽雷萨重工机械有限公司 | A kind of sheet metal pretreatment to the coating method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103014797A (en) * | 2012-11-22 | 2013-04-03 | 天长市飞龙金属制品有限公司 | Surface treatment process of metal sheets |
| CN103215578A (en) * | 2013-03-27 | 2013-07-24 | 佛山市中国地质大学研究院 | Metal passivant prepared from diosorea cirrhosa residue extracting liquid |
| CN106350803A (en) * | 2016-08-29 | 2017-01-25 | 常熟市虞东磷化材料有限公司 | Passivator for metal plates |
| CN108031634A (en) * | 2017-11-30 | 2018-05-15 | 安徽雷萨重工机械有限公司 | A kind of sheet metal pretreatment to the coating method |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109609900A (en) * | 2018-12-27 | 2019-04-12 | 保定市胜新金属表面处理有限公司 | A kind of aftertreatment technology on energy-saving and environment-friendly metal zincizing surface |
| CN110983388A (en) * | 2019-11-06 | 2020-04-10 | 苏州胜禹材料科技股份有限公司 | Electrogalvanizing plate with high surface quality for television backboard and production method thereof |
| CN110923730A (en) * | 2019-12-04 | 2020-03-27 | 嘉善永金金属制品有限公司 | Cleaning process for metal piece |
| CN110938843A (en) * | 2019-12-10 | 2020-03-31 | 隆昌山川精密焊管有限责任公司 | Large stamping part galvanizing process |
| CN111055170A (en) * | 2020-01-14 | 2020-04-24 | 诸暨市领诚信息技术有限公司 | Metal material surface polishing treatment method |
| CN112605039A (en) * | 2020-12-08 | 2021-04-06 | 富乐德科技发展（天津）有限公司 | Cleaning method for removing metal conductive film on surface of molybdenum material |
| CN114058230A (en) * | 2021-12-07 | 2022-02-18 | 深圳市美瑞金属材料有限公司 | Aluminum material with good corrosion resistance based on continuous surface treatment and preparation method thereof |
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Application publication date: 20181130 |
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