CN110877959A - One-step enameling and low-temperature firing glass-lined glaze for oilfield pipeline corrosion prevention and preparation method and application thereof - Google Patents
One-step enameling and low-temperature firing glass-lined glaze for oilfield pipeline corrosion prevention and preparation method and application thereof Download PDFInfo
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- CN110877959A CN110877959A CN201911063097.XA CN201911063097A CN110877959A CN 110877959 A CN110877959 A CN 110877959A CN 201911063097 A CN201911063097 A CN 201911063097A CN 110877959 A CN110877959 A CN 110877959A
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- glaze
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C8/00—Enamels; Glazes; Fusion seal compositions being frit compositions having non-frit additions
- C03C8/02—Frit compositions, i.e. in a powdered or comminuted form
- C03C8/06—Frit compositions, i.e. in a powdered or comminuted form containing halogen
-
- 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
- C23D—ENAMELLING OF, OR APPLYING A VITREOUS LAYER TO, METALS
- C23D5/00—Coating with enamels or vitreous layers
- C23D5/04—Coating with enamels or vitreous layers by dry methods
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2207/00—Compositions specially applicable for the manufacture of vitreous enamels
- C03C2207/04—Compositions specially applicable for the manufacture of vitreous enamels for steel
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Glass Compositions (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
The invention belongs to the technical field of glass-lined glaze materials, and particularly discloses a glass-lined glaze material which is used for corrosion prevention of oil field pipelines and is obtained by one-step enameling and low-temperature firing, a preparation method and an application thereof, wherein the glass-lined glaze material comprises the following components in percentage by weight: 230-50 parts of SiO, 35-20 parts of B2O, 31-5 parts of Al2O, 2O 2-5.5 parts of Li2, 2O + Na2O 4-16.5 parts of K2, 1-6 parts of CaO, 21-1.5 parts of MnO, 0.3-2 parts of CoO, 0.5-2 parts of NiO, 35-8 parts of CaF 21, 21.2-7.5 parts of TiO21.5 parts of ZrO20.5-4 parts of ZnO, 0.5-5 parts of SnO20.5-5 parts of MoO 30-4 parts of SrO, 0-3 parts of CeO 20-2.5 parts of BaO, and 0.5-8.5 parts of BaO. The maximum firing temperature of the glass-lined glaze material is lower than 800 ℃, the anti-corrosion layer can be manufactured through one-time lining, the production efficiency of the pipeline anti-corrosion layer can be greatly improved, and the glass-lined glaze material is suitable for corrosion prevention of oil field pipelines.
Description
Technical Field
The invention belongs to the technical field of glass-lined glaze materials, particularly relates to corrosion prevention of metal pipelines for oil fields, and particularly discloses a glass-lined glaze material for corrosion prevention of oil fields, which is subjected to one-step lining and low-temperature firing, and a preparation method and application thereof.
Background
At present, the common glass lining anticorrosion chemical equipment is generally provided with two layers of bottom glaze, the firing temperature is high and is generally above 900 ℃, the high-temperature deformation of a pipeline is easy to cause, and fuel is wasted; the bottom glaze needs to be fired for several times, the manufacturing time is long, and the production speed is slow; the glaze slip needs to be sprayed, and then the glaze slip is dried and fired, so that the manufacturing process is complex. Therefore, the low temperature of the firing temperature of the glass lining anticorrosion equipment, the high efficiency of the production and the simplification of the process are the problems to be solved by the industry.
Disclosure of Invention
In view of the defects of the prior art, the invention aims to provide a glass-lined glaze material with one-step lining and low-temperature firing for oil field pipeline corrosion prevention, a preparation method and application thereof, so as to solve the problems of high firing temperature, long bottom glaze manufacturing time, slow production speed, complex manufacturing process and the like of glass-lined corrosion prevention equipment in the prior art.
In order to achieve the aim, the invention provides a one-step enamel and low-temperature fired glass-lined glaze material for corrosion prevention of oil field pipelines, which comprises the following components in percentage by weight:
further, the glass-lined glaze comprises the following components in percentage by weight:
further, the firing temperature of the glaze is lower than 800 ℃, and preferably 740-800 ℃.
The invention also provides a preparation method of the glass-lined glaze material, which comprises the following steps: melting all components of the glaze, water quenching into a material block, drying and ball milling into powder.
Furthermore, the melting temperature is 1280-1340 ℃.
Further, the melting time is 2-5 hours.
Furthermore, the particle size of the powder after ball milling is 50-150 meshes.
The invention also provides a method for manufacturing an oil field pipeline anticorrosive coating by using the glass lining glaze, which comprises the following steps: and heating the pipeline subjected to rust removal in a medium frequency manner, spraying glaze on the surface of the pipeline, and then sintering to finish the manufacture of the pipeline anticorrosive coating.
Further, the firing temperature is less than 800 ℃, and preferably 740 to 800 ℃.
Further, glaze is sprayed on the inner surface of the pipeline under the delivery of compressed gas, and an anti-corrosion layer is formed by one-time enameling.
Further, the pipeline substrate is low-carbon steel.
As described above, compared with the prior art, the present invention has the following beneficial effects: the firing temperature of the glass-lined glaze provided by the invention is 740-800 ℃, is lower than that of the conventional glass-lined glaze, and the preparation of the oil field pipeline anticorrosive coating can be completed by one-time lining; after the anticorrosive coating is soaked in the oil field sewage for 90 days, the surface has no defects of light loss, color change, falling off and the like, and the performances of the heat-resistant sodium hydroxide, boiling-resistant hydrochloric acid and the like can meet the technical requirements of the national standard GB 25025-. The anticorrosive coating of the pipeline manufactured by adopting the glass lining glaze material has the advantages that the highest firing temperature is lower than 800 ℃, the high-temperature deformation of the pipeline can be reduced, the energy is saved, the anticorrosive coating can be formed at one time, the bottom glaze firing is not needed for a plurality of times, and the production efficiency is greatly improved compared with the conventional glass lining anticorrosive pipeline.
The glass lining glaze material comprises the following main components:
1. silicon dioxide, boron oxide and aluminum oxide are used as matrix materials, have a net structure, are basic components for forming glass-lined glaze and determine the basic performance of glaze. If the amount is too much, the sintering temperature is increased, and the expected effect cannot be achieved; and the corrosion resistance of the anticorrosive coating can be reduced by using too low amount, so that the anticorrosive effect cannot be achieved.
2. The nickel oxide, cobalt oxide, molybdenum oxide, manganese dioxide and molybdenum oxide are used as the adhesion materials, have the function of chemically combining with metal, and can ensure that the glaze layer is firmly adhered to the metal substrate. If the dosage is too much, the material cost is increased, and the economic value is reduced; the dosage is too low, which affects the adhesion performance of the glaze layer and causes cracking and falling off of the glaze layer.
3. Sodium oxide, potassium oxide, calcium oxide, lithium oxide, calcium fluoride, barium oxide, boron oxide and strontium oxide are used as melting-assistant materials, so that the firing temperature of the product and glaze can be reduced, and the firing temperature is directly influenced by the amount of the sodium oxide, the potassium oxide, the calcium oxide, the lithium oxide, the calcium fluoride, the barium oxide, the boron oxide and the strontium oxide.
4. Chromium oxide, manganese oxide and cobalt oxide are used as coloring materials to endow the glaze layer with various colors so as to achieve the decoration effect.
5. Barium oxide, tin oxide, zinc oxide and lithium oxide are used as auxiliary materials, so that the bending strength and the mechanical strength of the glaze layer can be improved; zirconia, tin oxide, titanium dioxide and cerium dioxide are used as auxiliary materials, and the chemical corrosion resistance of the glaze layer can be improved.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention.
In the following examples, the pipeline is used as an oil field pipeline, and the matrix of the pipeline is low-carbon steel, specifically 20 # steel (the carbon content is 0.2%); of course, the glass-lined glaze of the present invention is also suitable for corrosion prevention of oil field pipelines whose matrix is low carbon steel with a carbon content of less than 0.2%.
Example 1:
(1) composition of glass-lined enamel (in% by weight):
(2) the preparation method comprises the following steps: melting all components of the glaze, and water quenching into a material block, wherein the melting temperature is 1335 ℃, the melting time is 2 hours, and the material block is dried and then ball-milled into powder with the particle size of 50 meshes.
(3) The using method comprises the following steps: and (3) heating the pipeline subjected to rust removal in a medium frequency manner, spraying the glaze on the inner surface of the pipeline under the conveying of compressed air, and then sintering the anticorrosive coating once.
Example 2:
(1) composition of glass-lined enamel (in% by weight):
(2) the preparation method comprises the following steps: melting all components of the glaze, and water-quenching into blocks, wherein the melting temperature is 1325 ℃, the melting time is 3 hours, and the blocks are dried and ball-milled into powder particles, and the particle size of the powder is 150 meshes.
(3) The using method comprises the following steps: and (3) heating the pipeline subjected to rust removal in a medium frequency manner, spraying the glaze on the inner surface of the pipeline under the action of compressed air, and then sintering the anticorrosive coating once.
Example 3:
(1) composition of glass-lined enamel (in% by weight):
(2) the preparation method comprises the following steps: melting all components of the glaze, and water quenching into a material block, wherein the melting temperature is 1330 ℃, the melting time is 5 hours, and the material block is dried and ball-milled into powder particles with the particle size of 100 meshes.
(3) The using method comprises the following steps: and (3) heating the pipeline subjected to rust removal in a medium frequency manner, spraying the glaze on the inner surface of the pipeline under the action of compressed air, and then sintering the anticorrosive coating once.
Example 4
(1) Composition of glass-lined enamel (in% by weight):
(2) the preparation method comprises the following steps: melting and water quenching all components of the glaze into blocks, wherein the melting temperature is 1280 ℃, the melting time is 4 hours, and the blocks are dried and ball-milled into powder particles with the particle size of 100 meshes.
(3) The using method comprises the following steps: and (3) heating the pipeline subjected to rust removal in a medium frequency manner, spraying the glaze on the inner surface of the pipeline under the action of compressed air, and then sintering the anticorrosive coating once.
Comparative example 1:
(1) composition of glass-lined enamel (in% by weight):
(2) the preparation method comprises the following steps: melting all components of the glaze, and water quenching into a material block, wherein the melting temperature is 1330 ℃, the melting time is 4 hours, and the material block is dried and ball-milled into powder particles with the particle size of 100 meshes.
(3) The using method comprises the following steps: and (3) heating the pipeline subjected to rust removal in a medium frequency manner, spraying the glaze on the inner surface of the pipeline under the action of compressed air, and then sintering the anticorrosive coating once.
Comparative example 2:
(1) composition of glass-lined enamel (in% by weight):
(2) the preparation method comprises the following steps: melting and water quenching all components of the glaze into blocks, wherein the melting temperature is 1320 ℃, the melting time is 3.5 hours, and the blocks are dried and ball-milled into powder particles with the particle size of 100 meshes.
(3) The using method comprises the following steps: and (3) heating the pipeline subjected to rust removal in a medium frequency manner, spraying the glaze on the inner surface of the pipeline under the action of compressed air, and then sintering the anticorrosive coating once.
Comparative example 3:
(2) the preparation method comprises the following steps: melting and water quenching all components of the glaze into a material block, wherein the melting temperature is 1305 ℃, the melting time is 2 hours, and the material block is dried and then ball-milled into powder with the particle size of 50 meshes.
(3) The using method comprises the following steps: and (3) heating the pipeline subjected to rust removal in a medium frequency manner, spraying the glaze on the inner surface of the pipeline under the conveying of compressed air, and then sintering the anticorrosive coating once.
And (3) testing:
the chemical and physical properties of the glass-lined glazes in examples 1 to 3 and comparative examples 1 to 3 were measured with reference to the national standard GB 25025-.
TABLE 1
As can be seen from table 1, the firing temperature of the glass-lined glazes in examples 1 to 4 is lower than 800 ℃, and the surface of the anticorrosive coating has no defects such as light loss, discoloration, shedding and the like after being soaked in oil field sewage for 90 days, and the heat-resistant sodium hydroxide performance and the boiling-resistant hydrochloric acid performance are respectively as follows: 4.65-4.95 g/m < 2 > 2d and 1.03-1.8 g/m < 2 > 2d are lower than the technical requirements of the national standard GB 25025-.
Although the performances of the glass-lined glaze material in the comparative example 1, such as the performance of resisting hot sodium hydroxide, boiling hydrochloric acid and oil field sewage, are improved, and the national standard requirements can be met, the firing temperature is high, the rotary pipeline is distorted and deformed in the firing process, and the anticorrosion process cannot be realized.
Although the firing temperature of the glass-lined glaze in comparative example 2 is lower than 800 ℃, the glaze cannot be effectively bonded to the inner wall of the steel pipe due to the lack of the adhesion material, resulting in the occurrence of the detachment of the glaze layer.
Although the firing temperature of the glass lining glaze material in the comparative example 3 is lower than 800 ℃, the heat-resistant sodium hydroxide corrosion resistance and boiling hydrochloric acid resistance are poor and cannot reach the national standard, which indicates that the corrosion resistance of the anticorrosive coating is influenced by the dosage of the matrix materials such as silicon dioxide, boron oxide and the like.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. The glass-lined glaze material for corrosion prevention of oil field pipeline is prepared by one-step enameling and low-temperature sintering, and is characterized by comprising the following components in parts by weight: comprises the following components in percentage by weight:
2. the glass-lining glaze according to claim 1, wherein: comprises the following components in percentage by weight:
3. the glass-lined glaze material according to claim 1 or 2, wherein: the firing temperature of the glaze is lower than 800 ℃, and preferably 740-800 ℃.
4. The process for the preparation of glass-enamel frit according to any of claims 1 to 3, characterized by comprising the following steps: melting all components of the glaze, water quenching into a material block, drying and ball milling into powder.
5. The method of claim 4, wherein: the melting temperature is 1280-1340 ℃; and/or the melting time is 2-5 hours.
6. The method of claim 4, wherein: the particle size of the powder after ball milling is 50-150 meshes.
7. A method of making an oilfield tubular corrosion protection coating using the glass-lined glaze of claims 1-3, wherein: and heating the pipeline subjected to rust removal in a medium frequency manner, spraying glaze on the surface of the pipeline, and then sintering to finish the manufacture of the pipeline anticorrosive coating.
8. The method of claim 7, wherein: the firing temperature is lower than 800 ℃, and preferably 740-800 ℃.
9. The method of claim 7, wherein: the glaze is sprayed on the inner surface of the pipeline under the delivery of compressed gas, and the anti-corrosion layer is formed by one-time enameling.
10. The method of claim 7, wherein: the pipeline substrate is low carbon steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911063097.XA CN110877959A (en) | 2019-10-31 | 2019-10-31 | One-step enameling and low-temperature firing glass-lined glaze for oilfield pipeline corrosion prevention and preparation method and application thereof |
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|---|---|---|---|
| CN201911063097.XA CN110877959A (en) | 2019-10-31 | 2019-10-31 | One-step enameling and low-temperature firing glass-lined glaze for oilfield pipeline corrosion prevention and preparation method and application thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112408790A (en) * | 2020-12-04 | 2021-02-26 | 胜利新大新材料股份有限公司 | Glass-lined glaze, anti-corrosion layer in oil field pipeline and preparation method of anti-corrosion layer |
| CN113701547A (en) * | 2021-08-31 | 2021-11-26 | 中盐安徽红四方股份有限公司 | Enamel pipe for air preheater |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112408790A (en) * | 2020-12-04 | 2021-02-26 | 胜利新大新材料股份有限公司 | Glass-lined glaze, anti-corrosion layer in oil field pipeline and preparation method of anti-corrosion layer |
| CN113701547A (en) * | 2021-08-31 | 2021-11-26 | 中盐安徽红四方股份有限公司 | Enamel pipe for air preheater |
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Address after: Building 2, No.86, Beiyi Road, Dongying Development Zone, Shandong Province, 257055 Applicant after: Shengli new big new materials Co.,Ltd. Address before: 257055 No. 86 Beiyi Road, Dongying Development Zone, Shandong Province Applicant before: SHENGLI OIL FIELD XINDA PIPE INDUSTRY TECHNOLOGY DEVELOPMENT Co.,Ltd. |
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Application publication date: 20200313 |