CN111548658A - Steel pipe surface treating agent and anti-corrosion treatment method - Google Patents

Steel pipe surface treating agent and anti-corrosion treatment method Download PDF

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Publication number
CN111548658A
CN111548658A CN202010386976.2A CN202010386976A CN111548658A CN 111548658 A CN111548658 A CN 111548658A CN 202010386976 A CN202010386976 A CN 202010386976A CN 111548658 A CN111548658 A CN 111548658A
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China
Prior art keywords
steel pipe
treatment method
corrosion prevention
treating agent
surface treating
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Application number
CN202010386976.2A
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Chinese (zh)
Inventor
赵凯
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Anhui Tangdao Electronic Technology Co ltd
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Anhui Tangdao Electronic Technology Co ltd
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Priority to CN202010386976.2A priority Critical patent/CN111548658A/en
Publication of CN111548658A publication Critical patent/CN111548658A/en
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D4/00—Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
    • C09D4/06—Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09D159/00 - C09D187/00
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/10—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by other chemical means
    • B05D3/102—Pretreatment of metallic substrates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/08—Anti-corrosive paints
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/61—Additives non-macromolecular inorganic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/63—Additives non-macromolecular organic

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)

Abstract

The invention discloses a steel pipe surface treating agent and an antiseptic treatment method, wherein the surface treating agent comprises the following components in percentage by weight: 3% -9% of polytetrafluoroethylene, 6% -12% of dimethylformamide, 3% -6% of trifluoroacetyl chloride, 1% -3% of triethyl benzenetricarboxylate, 3% -6% of zinc undecylenate, 6% -8% of carbon nano tube, 2% -6% of trifluoroethyl acrylate, 5% -8% of nano diamond, 1% -3% of magnesium reagent, 3% -6% of dioctyl sebacate, 1% -3% of diphenyl phosphoryl chloride, 2% -8% of amino, 6% -12% of alkoxy and 10% -20% of silane. The invention can effectively prevent the corrosion of the steel pipe, prolong the service life of the steel pipe, effectively increase the strength of the steel pipe and has good application prospect.

Description

Steel pipe surface treating agent and anti-corrosion treatment method
Technical Field
The invention relates to the technical field of pipelines, in particular to a steel pipe surface treating agent and an anti-corrosion treatment method.
Background
The steel pipe has a hollow cross section with a length much greater than the diameter or circumference of the steel. The steel pipe is divided into round, square, rectangular and special-shaped steel pipes according to the cross section shape, carbon structural steel pipes, low alloy structural steel pipes, alloy steel pipes and composite steel pipes according to the material quality, steel pipes for conveying pipelines, engineering structures, thermal equipment, petrochemical industry, machine manufacturing, geological drilling, high pressure equipment and the like according to the application, and the steel pipe is divided into a seamless steel pipe and a welded steel pipe according to the production process, wherein the seamless steel pipe is divided into hot rolling and cold rolling (drawing), and the welded steel pipe is divided into a straight seam welded steel pipe and a spiral seam welded steel pipe. The existing steel pipe has strong corrosivity, short service life, large investment and maintenance cost saving and larger construction difficulty. In view of the related technical problems, no effective solution has been proposed at present.
Disclosure of Invention
Aiming at the problems in the related art, the invention provides a steel pipe surface treating agent and an anti-corrosion treatment method, so as to overcome the technical problems in the prior related art.
The technical scheme of the invention is realized as follows:
the steel pipe surface treating agent and the corrosion prevention treatment method are characterized in that the surface treating agent consists of the following components in percentage by weight: 3% -9% of polytetrafluoroethylene, 6% -12% of dimethylformamide, 3% -6% of trifluoroacetyl chloride, 1% -3% of triethyl benzenetricarboxylate, 3% -6% of zinc undecylenate, 6% -8% of carbon nano tube, 2% -6% of trifluoroethyl acrylate, 5% -8% of nano diamond, 1% -3% of magnesium reagent, 3% -6% of dioctyl sebacate, 1% -3% of diphenyl phosphoryl chloride, 2% -8% of amino, 6% -12% of alkoxy and 10% -20% of silane.
Further, the antiseptic treatment method is carried out according to the following steps in sequence:
(1) firstly, carrying out acid pickling on the steel pipe;
(2) cleaning the cleaned steel pipe with clear water and naturally airing;
(3) immersing the cleaned and dried steel pipe into a molten surface treating agent to form an anti-corrosion coating, wherein the surface treating agent comprises the following components in percentage by weight: 6% of polytetrafluoroethylene, 12% of dimethylformamide, 4% of trifluoroacetyl chloride, 3% of triethyl benzenetricarboxylate, 6% of zinc undecylenate, 6% of carbon nano tube, 6% of trifluoroethyl acrylate, 8% of nano diamond, 2% of magnesium reagent, 5% of dioctyl sebacate, 2% of diphenyl phosphoryl chloride, 8% of amino, 12% of alkoxy and 20% of silane.
(4) And (3) putting the soaked steel pipe into a furnace for drying, heating the furnace to 120-240 ℃, preserving heat for 9-18 h, heating the furnace to 180-360 ℃, preserving heat for 24-36 h, and cooling to room temperature along with the furnace.
Further, the soaking time of the steel pipe is 60-120 minutes.
Further, the acid washing refers to washing for 6-12 minutes by using a sulfuric acid solution with a mass percentage concentration of 22%.
Further, the temperature of the molten surface treatment agent is 100 ℃ to 200 ℃.
Furthermore, the thickness of the anti-corrosion coating is 0.6 mm-1.2 mm.
The invention has the beneficial effects that: the steel pipe surface treating agent and the anti-corrosion treatment method provided by the invention have the advantages of novel structure, ingenious design and convenience in use, the cleaned steel pipe is soaked in the surface treating agent for dozens of minutes, and then the soaked steel pipe is placed in a furnace for drying.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the present detailed description, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.
According to the embodiment of the invention, the invention provides a steel pipe surface treating agent and an anti-corrosion treatment method.
The invention relates to a steel pipe surface treating agent which comprises the following components in percentage by weight: 3% -9% of polytetrafluoroethylene, 6% -12% of dimethylformamide, 3% -6% of trifluoroacetyl chloride, 1% -3% of triethyl benzenetricarboxylate, 3% -6% of zinc undecylenate, 6% -8% of carbon nano tube, 2% -6% of trifluoroethyl acrylate, 5% -8% of nano diamond, 1% -3% of magnesium reagent, 3% -6% of dioctyl sebacate, 1% -3% of diphenyl phosphoryl chloride, 2% -8% of amino, 6% -12% of alkoxy and 10% -20% of silane.
Example 1
The steel pipe anticorrosion treatment method is carried out according to the following steps in sequence:
(1) firstly, carrying out acid pickling on the steel pipe;
(2) cleaning the cleaned steel pipe with clear water and naturally airing;
(3) immersing the cleaned and dried steel pipe into a molten surface treating agent to form an anti-corrosion coating, wherein the surface treating agent comprises the following components in percentage by weight: 6% of polytetrafluoroethylene, 12% of dimethylformamide, 4% of trifluoroacetyl chloride, 3% of triethyl benzenetricarboxylate, 6% of zinc undecylenate, 6% of carbon nano tube, 6% of trifluoroethyl acrylate, 8% of nano diamond, 2% of magnesium reagent, 5% of dioctyl sebacate, 2% of diphenyl phosphoryl chloride, 8% of amino, 12% of alkoxy and 20% of silane.
(4) And (3) putting the soaked steel pipe into a furnace for drying, heating the furnace to 120 ℃, preserving the heat for 9 hours, heating the furnace to 180 ℃, preserving the heat for 24 hours, and cooling the steel pipe to room temperature along with the furnace.
In the steel pipe surface treatment agent and the corrosion prevention treatment method in the embodiment, the steel pipe is soaked for 60 minutes in the step (3).
In the steel pipe surface treatment agent and the corrosion prevention treatment method in the embodiment, the pickling in the step (1) is to clean the steel pipe with a sulfuric acid solution with a mass percentage concentration of 22% for 6 minutes.
In the steel pipe surface treatment agent and the corrosion prevention treatment method in this embodiment, the temperature of the molten surface treatment agent in the step (3) is 100 ℃.
In the steel pipe surface treatment agent and the corrosion prevention treatment method in the embodiment, the thickness of the corrosion prevention coating in the step (3) is 0.6 mm.
Example 2
The steel pipe anticorrosion treatment method is carried out according to the following steps in sequence:
(1) firstly, carrying out acid pickling on the steel pipe;
(2) cleaning the cleaned steel pipe with clear water and naturally airing;
(3) immersing the cleaned and dried steel pipe into a molten surface treating agent to form an anti-corrosion coating, wherein the surface treating agent comprises the following components in percentage by weight: 9% of polytetrafluoroethylene, 11% of dimethylformamide, 5% of trifluoroacetyl chloride, 3% of triethyl benzenetricarboxylate, 4% of zinc undecylenate, 8% of carbon nano tube, 5% of trifluoroethyl acrylate, 7% of nano diamond, 2% of magnesium reagent, 5% of dioctyl sebacate, 3% of diphenyl phosphoryl chloride, 8% of amino, 12% of alkoxy and 18% of silane.
(4) And (3) putting the soaked steel pipe into a furnace for drying, heating the furnace to 180 ℃, preserving the heat for 16 h, heating the furnace to 320 ℃, preserving the heat for 28 h, and cooling the steel pipe to room temperature along with the furnace.
In the steel pipe surface treatment agent and the corrosion prevention treatment method in the embodiment, the steel pipe is soaked for 100 minutes in the step (3).
In the steel pipe surface treatment agent and the corrosion prevention treatment method in the embodiment, the pickling in the step (1) is to clean the steel pipe with a sulfuric acid solution with a mass percentage concentration of 22% for 10 minutes.
In the steel pipe surface treatment agent and the corrosion prevention treatment method in this embodiment, the temperature of the molten surface treatment agent in the step (3) is 180 ℃.
In the steel pipe surface treatment agent and the corrosion prevention treatment method in the embodiment, the thickness of the corrosion prevention coating in the step (3) is 0.9 mm.
Compared with the traditional paint spraying mode, the method has the advantages of high efficiency, low cost and good coating quality, avoids the oxidation of an anti-corrosion coating, effectively improves the anti-corrosion performance of the anti-corrosion coating, ensures that the coating is uniformly coated, improves the hardness of the coating, ensures that the surface treatment agent comprises silane and other materials, is beneficial to the high-temperature and high-pressure resistance of the steel pipe, enhances the wear resistance and the service life of a lubricating layer subjected to surface treatment, is beneficial to maintenance, has low material cost, wide material source, large product market and other economic benefits, and has higher social use value and application prospect.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (7)

1. The steel pipe surface treating agent and the corrosion prevention treatment method are characterized in that the surface treating agent consists of the following components in percentage by weight: 3% -9% of polytetrafluoroethylene, 6% -12% of dimethylformamide, 3% -6% of trifluoroacetyl chloride, 1% -3% of triethyl benzenetricarboxylate, 3% -6% of zinc undecylenate, 6% -8% of carbon nano tube, 2% -6% of trifluoroethyl acrylate, 5% -8% of nano diamond, 1% -3% of magnesium reagent, 3% -6% of dioctyl sebacate, 1% -3% of diphenyl phosphoryl chloride, 2% -8% of amino, 6% -12% of alkoxy and 10% -20% of silane.
2. The steel pipe surface treatment agent and the corrosion prevention treatment method according to claim 1, wherein the corrosion prevention treatment method is performed by the following steps in order:
(1) firstly, carrying out acid pickling on the steel pipe;
(2) cleaning the cleaned steel pipe with clear water and naturally airing;
(3) immersing the cleaned and dried steel pipe into a molten surface treating agent to form an anti-corrosion coating, wherein the surface treating agent comprises the following components in percentage by weight: 6% of polytetrafluoroethylene, 12% of dimethylformamide, 4% of trifluoroacetyl chloride, 3% of triethyl benzenetricarboxylate, 6% of zinc undecylenate, 6% of carbon nano tube, 6% of trifluoroethyl acrylate, 8% of nano diamond, 2% of magnesium reagent, 5% of dioctyl sebacate, 2% of diphenyl phosphoryl chloride, 8% of amino, 12% of alkoxy and 20% of silane.
And (4) putting the soaked steel pipe into a furnace for drying, heating the furnace to 120-240 ℃, preserving heat for 9-18 h, then heating the furnace to 180-360 ℃, preserving heat for 24-36 h, and cooling to room temperature along with the furnace.
4. The steel pipe surface treatment agent and the corrosion prevention treatment method according to claim 2, wherein the steel pipe immersion time is 60 to 120 minutes.
5. The steel pipe surface treatment agent and the corrosion prevention treatment method according to claim 2, wherein the acid washing is performed by washing with a 22% sulfuric acid solution by mass for 6 to 12 minutes.
6. The steel pipe surface treatment agent and the corrosion prevention treatment method according to claim 2, wherein the temperature of the molten surface treatment agent is 100 ℃ to 200 ℃.
7. The steel pipe surface treatment agent and the corrosion prevention treatment method according to claim 2, wherein the thickness of the corrosion prevention coating is 0.6 mm to 1.2 mm.
CN202010386976.2A 2020-05-09 2020-05-09 Steel pipe surface treating agent and anti-corrosion treatment method Withdrawn CN111548658A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010386976.2A CN111548658A (en) 2020-05-09 2020-05-09 Steel pipe surface treating agent and anti-corrosion treatment method

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Application Number Priority Date Filing Date Title
CN202010386976.2A CN111548658A (en) 2020-05-09 2020-05-09 Steel pipe surface treating agent and anti-corrosion treatment method

Publications (1)

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CN111548658A true CN111548658A (en) 2020-08-18

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1676540A (en) * 2004-03-31 2005-10-05 张波 Nano anticorrosive antibacterial plastic-metal composite pipe and its manufacturing method
CN103666665A (en) * 2012-09-24 2014-03-26 Lg电子株式会社 Surface treating agent for wear-resistance surface, manufacturing method thereof and compressor using the same
CN109772379A (en) * 2019-02-25 2019-05-21 浙江工业大学 A kind of nano level metal fluoride catalysts of confinement formula structure and its preparation method and application

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1676540A (en) * 2004-03-31 2005-10-05 张波 Nano anticorrosive antibacterial plastic-metal composite pipe and its manufacturing method
CN103666665A (en) * 2012-09-24 2014-03-26 Lg电子株式会社 Surface treating agent for wear-resistance surface, manufacturing method thereof and compressor using the same
CN109772379A (en) * 2019-02-25 2019-05-21 浙江工业大学 A kind of nano level metal fluoride catalysts of confinement formula structure and its preparation method and application

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