CN109023323A - The method of automobile engine surface anticorrosion processing - Google Patents
The method of automobile engine surface anticorrosion processing Download PDFInfo
- Publication number
- CN109023323A CN109023323A CN201811047061.8A CN201811047061A CN109023323A CN 109023323 A CN109023323 A CN 109023323A CN 201811047061 A CN201811047061 A CN 201811047061A CN 109023323 A CN109023323 A CN 109023323A
- Authority
- CN
- China
- Prior art keywords
- automobile engine
- blackening
- surface anticorrosion
- pickling
- blackening process
- 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.)
- Withdrawn
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Classifications
-
- 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
-
- 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
- C23C22/78—Pretreatment of the material to be coated
-
- 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
- C23G1/08—Iron or steel
- C23G1/081—Iron or steel solutions containing H2SO4
-
- 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
- C23G1/19—Iron or steel
Abstract
The present invention provides a kind of method of automobile engine surface anticorrosion processing, and the method for the present invention includes following steps: (1) carrying out pickling to automobile engine；(2) automobile engine after pickling is washed and is dried；(3) configuration blackening solution carries out blackening process: the blackening solution includes copper sulphate, selenium dioxide, nickel sulfate, potassium citrate, hydroquinone, the concentration of the blackening solution is copper sulphate 4-6 g/L, selenium dioxide 1-2 g/L, nickel sulfate 1-3g/L, potassium citrate 2-4 g/L, hydroquinone 3-6 g/L, the temperature of the blackening process is 55-60 DEG C, and the time of the blackening process is 3-5 minutes；(4) hot water cleaning is carried out to the automobile engine after blackening process to dry.The problems such as present invention can effectively avoid automobile engine from being corroded by acid corrosion or ponding, extends the service life of automobile.
Description
Technical field:
The present invention relates to a kind of methods of automobile engine surface anticorrosion processing, belong to field of metal surface treatment technology.
Background technique:
Surface treatment is that one layer of table different from the machinery of matrix, physical and chemical properties is artificially formed on substrate material surface
The process of layer.The purpose of surface treatment is the corrosion resistance for meeting product, wearability, decoration or other features requirements.
For metal casting, our more commonly used surface treatment methods are mechanical grindings, chemical treatment, and Surface heat-treatent sprays table
Face, surface treatment be exactly workpiece surface is cleaned, is cleaned, deburring, degreasing, descale etc..
Blackening process is that steel is heated in air or is directly dipped in dense oxidizing solution, generates its surface very thin
The material protection technology of oxidation film.Solution composition, reaction temperature and time when nigrescence is depending on the ingredient of steel substrate.Hair
The ingredient of black film is magnetic iron oxide, and with a thickness of 0.5~1.5 micron, color is related with material composition and process conditions, there is ash
Black, pitch black, brilliant blue etc..Individual black film corrosion resistance is poor.
Fuel oil can generate many harmful substances after engine chamber burning, meeting when general every 100 gallons of petrol burns
1-5 pounds of nitrogen and sulfuric acid are generated, these substances not only can cause to corrode to cylinder；Engine after a shutdown, by High-temperature cooling to
Low temperature, this temperature changing process can make engine interior generate water condensation gas down to ponding.This can cause engine seriously
Corrosion of metal；Engine is caused to be scrapped after engine corrosion, so that the service life of automobile is short.
Summary of the invention:
The purpose of the present invention is providing a kind of method of automobile engine surface anticorrosion processing in view of the above problems, pass through
After preservative treatment, the problems such as automobile engine is by acid corrosion or ponding corrosion can be effectively avoided, the use of automobile is extended
Service life.
Above-mentioned purpose is realized by following technical scheme:
The method of automobile engine surface anticorrosion processing, this method comprises the following steps:
(1) pickling is carried out to automobile engine；
(2) automobile engine after pickling is washed and is dried；
(3) configuration blackening solution carries out blackening process: the blackening solution includes copper sulphate, selenium dioxide, nickel sulfate, lemon
Sour potassium, hydroquinone, the concentration of the blackening solution is copper sulphate 4-6 g/L, selenium dioxide 1-2 g/L, nickel sulfate 1-3g/L,
Potassium citrate 2-4 g/L, hydroquinone 3-6 g/L, the temperature of the blackening process are 55-60 DEG C, the blackening process when
Between be 3-5 minutes；
(4) hot water cleaning is carried out to the automobile engine after blackening process to dry.
The method of the automobile engine surface anticorrosion processing, the specific method of ungrease treatment as described in step (1)
It is that the sodium hydroxide solution for being 5% with percentage concentration cleans 3 minutes.
The method of the automobile engine surface anticorrosion processing, pickling described in step (2) refer to quality percentage
The sulfuric acid solution that concentration is 10% cleans 5 minutes.
The method of the automobile engine surface anticorrosion processing, the cleaning of hot water described in step (4) are with 80-95 DEG C
Water cleaning.
The utility model has the advantages that
The present invention can effectively avoid the problems such as automobile engine is by acid corrosion or ponding corrosion after preservative treatment,
Extend the service life of automobile.
Specific embodiment:
Embodiment 1:
The method of automobile engine surface anticorrosion processing, this method comprises the following steps:
(1) pickling is carried out to automobile engine；
(2) automobile engine after pickling is washed and is dried；
(3) configuration blackening solution carries out blackening process: the blackening solution includes copper sulphate, selenium dioxide, nickel sulfate, lemon
Sour potassium, hydroquinone, the concentration of the blackening solution is copper sulphate 4-6 g/L, selenium dioxide 1-2 g/L, nickel sulfate 1-3g/L,
Potassium citrate 2-4 g/L, hydroquinone 3-6 g/L, the temperature of the blackening process are 55-60 DEG C, the blackening process when
Between be 3-5 minutes；
(4) hot water cleaning is carried out to the automobile engine after blackening process to dry.
The method of the processing of automobile engine surface anticorrosion described in the present embodiment, ungrease treatment as described in step (1)
Specific method be with percentage concentration be 5% sodium hydroxide solution clean 3 minutes.
The method of the processing of automobile engine surface anticorrosion described in the present embodiment, pickling described in step (2) refer to
It is cleaned 5 minutes with the sulfuric acid solution that mass percentage concentration is 10%.
The method of the processing of automobile engine surface anticorrosion described in the present embodiment, the cleaning of hot water described in step (4)
It is to be cleaned with 80-95 DEG C of water.
The above is only highly preferred embodiment of the present invention, the method for the present invention includes but be not limited to the above embodiments, the present invention
Unaccomplished matter, belong to the common knowledge of those skilled in the art.
Claims (4)
1. a kind of method of automobile engine surface anticorrosion processing, it is characterized in that: this method comprises the following steps:
(1) pickling is carried out to automobile engine；
(2) automobile engine after pickling is washed and is dried；
(3) configuration blackening solution carries out blackening process: the blackening solution includes copper sulphate, selenium dioxide, nickel sulfate, lemon
Sour potassium, hydroquinone, the concentration of the blackening solution is copper sulphate 4-6 g/L, selenium dioxide 1-2 g/L, nickel sulfate 1-3g/L,
Potassium citrate 2-4 g/L, hydroquinone 3-6 g/L, the temperature of the blackening process are 55-60 DEG C, the blackening process when
Between be 3-5 minutes；
(4) hot water cleaning is carried out to the automobile engine after blackening process to dry.
2. the method for automobile engine surface anticorrosion processing according to claim 1, it is characterized in that: described in step (1)
Ungrease treatment specific method be with percentage concentration be 5% sodium hydroxide solution clean 3 minutes.
3. the method for automobile engine surface anticorrosion processing according to claim 1, it is characterized in that: described in step (2)
Pickling refer to mass percentage concentration be 10% sulfuric acid solution clean 5 minutes.
4. the method for automobile engine surface anticorrosion processing according to claim 1, it is characterized in that: described in step (4)
Hot water cleaning be to be cleaned with 80-95 DEG C of water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811047061.8A CN109023323A (en) | 2018-09-08 | 2018-09-08 | The method of automobile engine surface anticorrosion processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811047061.8A CN109023323A (en) | 2018-09-08 | 2018-09-08 | The method of automobile engine surface anticorrosion processing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109023323A true CN109023323A (en) | 2018-12-18 |
Family
ID=64620678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811047061.8A Withdrawn CN109023323A (en) | 2018-09-08 | 2018-09-08 | The method of automobile engine surface anticorrosion processing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109023323A (en) |
-
2018
- 2018-09-08 CN CN201811047061.8A patent/CN109023323A/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181218 |
|
| WW01 | Invention patent application withdrawn after publication |