CN106854743A - A kind of acidation treatment method before steel pipe is zinc-plated - Google Patents
A kind of acidation treatment method before steel pipe is zinc-plated Download PDFInfo
- Publication number
- CN106854743A CN106854743A CN201611243038.7A CN201611243038A CN106854743A CN 106854743 A CN106854743 A CN 106854743A CN 201611243038 A CN201611243038 A CN 201611243038A CN 106854743 A CN106854743 A CN 106854743A
- Authority
- CN
- China
- Prior art keywords
- steel pipe
- plated
- zinc
- treatment method
- sour
- 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
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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
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
-
- 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
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
- C23C2/06—Zinc or cadmium or alloys based thereon
-
- 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
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/34—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the shape of the material to be treated
- C23C2/36—Elongated material
- C23C2/38—Wires; Tubes
-
- 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
- C23G1/04—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors
-
- 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
- C23G1/088—Iron or steel solutions containing organic acids
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The present invention relates to a kind of acidation treatment method of steel pipe before zinc-plated, step is as follows：(1) steel pipe is put into rinsing bowl and is soaked, soak time is 1 hour；To remove the floating embroidery and impurity of steel tube surface and inwall, to reduce sour consumption；(2) the steel pipe after immersion is transferred in sour pond, watery hydrochloric acid is put into sour pond, at the same add 5% weight than high-efficient corrosion inhibition type rust remover, process 2 hours.The present invention compared to existing technology in simple acid solution rust cleaning, its acid mist for producing is significantly reduced, and on the premise of equal frequency of use, the replacing number of times of rust remover is only 1/3rd of prior art, greatly reduce the use of hydrochloric acid, and the situation of erosion is crossed in production process almost without steel pipe, thus greatly reduce the production cost of Steel Pipe Enterprise.
Description
Technical field
The invention belongs to field of metallurgy, the acidifying before the pretreatment before being related to steel pipe zinc-plated, especially a kind of steel pipe are zinc-plated
Processing method.
Background technology
By rolling, rolling, welding, one layer of iron oxide of its surface attachment must be gone steel pipe before zinc-plated to steel pipe
Remove, can otherwise influence the zinc-plated of steel pipe.
At present, the method for traditional removal oxidation iron includes aqueous sulfuric acid rust cleaning, aqueous hydrochloric acid solution rust cleaning
Deng the shortcoming of these methods is：, it is necessary to be heated to it when being eliminated rust with aqueous sulfuric acid, thus not only increase energy resource consumption,
And with aqueous sulfuric acid to steel pipe derusting after, steel tube surface can be in light/dark balance, be not easy to recognize that oxidation iron goes
Except situation, while the Waste Sulfuric Acid for producing can also endanger environment.And eliminated rust using aqueous hydrochloric acid solution, it is necessary to molten using concentrated hydrochloric acid
Liquid, production cost is higher, also produces pollution to environment.
By retrieval, following related patent document is found：A kind of pickle of the iron oxide for removing steel tube surface
(CN104775127A), if the hydrochloric acid of composition including 300~800ml/L, the phosphoric acid of 10~18ml/L, the fourth of 9~15g/L, multiple
0.5~1.5g/L of additive is closed, remaining is water；First hydrochloric acid, phosphoric acid and Ruo Ding are poured into during preparation are previously added in the container of water,
It is well mixed, it is subsequently adding compound additive.
By the contrast of technical characteristic, although patent document disclosed above employs hydrochloric acid and phosphoric acid, but hydrochloric acid volatilization
Performance is not resolved yet.
The content of the invention
It is an object of the invention to overcome the deficiencies in the prior art, there is provided the acidation treatment method before a kind of steel pipe is zinc-plated.
The present invention solves the scheme that is used of its technical problem：
A kind of acidation treatment method before steel pipe is zinc-plated, it is characterised in that：Step is as follows：
(1) steel pipe is put into rinsing bowl and is soaked, soak time is 1 hour；To remove the floating of steel tube surface and inwall
Embroider and impurity, to reduce sour consumption；
(2) the steel pipe after immersion is transferred in sour pond, watery hydrochloric acid is put into sour pond, at the same add 5% weight than it is high
Effect inhibition rust remover, is processed 2 hours.
And, the component and its percentage by weight of the high-efficient corrosion inhibition type rust remover are：
Oxalic acid 10%~15%
EDTA 2~4%,
Corrosion inhibiter 2%~4%,
Citric acid 2~4%,
Penetrating agent JFC 0.5~0.8%
Balance of water.
Advantages and positive effects of the present invention are：
The present invention compared to existing technology in simple acid solution rust cleaning, its acid mist for producing significantly reduces, and equal
On the premise of frequency of use, the replacing number of times of rust remover is only 1/3rd of prior art, largely reduces acid
Waste, the situation for crossing erosion almost without steel pipe in production process occurs, and greatly reduces the production cost of Steel Pipe Enterprise.
Specific embodiment
Below by specific embodiment, the invention will be further described, and following examples are descriptive, is not limit
Qualitatively, it is impossible to which protection scope of the present invention is limited with this.
A kind of acidation treatment method before steel pipe is zinc-plated, step is as follows：
(1) steel pipe is put into rinsing bowl and is soaked, soak time is 1 hour；To remove the floating of steel tube surface and inwall
Embroider and impurity, to reduce sour consumption；
(2) the steel pipe after immersion is transferred in sour pond, watery hydrochloric acid is put into sour pond, at the same add 5% weight than it is high
Effect inhibition rust remover, to control acid mist to volatilize, while reducing corrosivity of the hydrochloric acid to steel pipe；
The component and its percentage by weight of the high-efficient corrosion inhibition type rust remover be：
Oxalic acid 10%~15%
EDTA 2~4%,
Corrosion inhibiter 2%~4%,
Citric acid 2~4%,
Penetrating agent JFC 0.5~0.8%
Balance of water.
Claims (2)
1. the acidation treatment method before a kind of steel pipe is zinc-plated, it is characterised in that：Step is as follows：
(1) steel pipe is put into rinsing bowl and is soaked, soak time is 1 hour；With remove steel tube surface and inwall floating embroidery and
Impurity, to reduce sour consumption；
(2) the steel pipe after immersion is transferred in sour pond, watery hydrochloric acid is put into sour pond, at the same add 5% weight than it is efficiently slow
Erosion rust remover, is processed 2 hours.
2. the acidation treatment method before steel pipe according to claim 1 is zinc-plated, it is characterised in that：The high-efficient corrosion inhibition type rust cleaning
The component and its percentage by weight of agent be：
Oxalic acid 10%~15%
EDTA 2~4%,
Corrosion inhibiter 2%~4%,
Citric acid 2~4%,
Penetrating agent JFC 0.5~0.8%
Balance of water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611243038.7A CN106854743A (en) | 2016-12-29 | 2016-12-29 | A kind of acidation treatment method before steel pipe is zinc-plated |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611243038.7A CN106854743A (en) | 2016-12-29 | 2016-12-29 | A kind of acidation treatment method before steel pipe is zinc-plated |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106854743A true CN106854743A (en) | 2017-06-16 |
Family
ID=59126513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611243038.7A Pending CN106854743A (en) | 2016-12-29 | 2016-12-29 | A kind of acidation treatment method before steel pipe is zinc-plated |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106854743A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103060710A (en) * | 2013-02-03 | 2013-04-24 | 张关池 | Rustproof and heat-resistant cast stainless steel pipe |
| CN104047000A (en) * | 2014-06-23 | 2014-09-17 | 梧州恒声电子科技有限公司 | Metal rust remover and preparation method thereof |
-
2016
- 2016-12-29 CN CN201611243038.7A patent/CN106854743A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103060710A (en) * | 2013-02-03 | 2013-04-24 | 张关池 | Rustproof and heat-resistant cast stainless steel pipe |
| CN104047000A (en) * | 2014-06-23 | 2014-09-17 | 梧州恒声电子科技有限公司 | Metal rust remover and preparation method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| 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 |
Application publication date: 20170616 |
|
| WD01 | Invention patent application deemed withdrawn after publication |