CN105351635A - Metal-ceramic composite pipe and manufacturing process thereof - Google Patents
Metal-ceramic composite pipe and manufacturing process thereof Download PDFInfo
- Publication number
- CN105351635A CN105351635A CN201510528225.9A CN201510528225A CN105351635A CN 105351635 A CN105351635 A CN 105351635A CN 201510528225 A CN201510528225 A CN 201510528225A CN 105351635 A CN105351635 A CN 105351635A
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- Prior art keywords
- ceramic
- layer
- glaze
- pipe
- metal
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/14—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
- F16L57/06—Protection of pipes or objects of similar shape against external or internal damage or wear against wear
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
- F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
- F16L58/04—Coatings characterised by the materials used
- F16L58/14—Coatings characterised by the materials used by ceramic or vitreous materials
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
- Chemically Coating (AREA)
Abstract
The invention discloses a metal-ceramic composite pipe which comprises a base pipe. A groove is formed in the base pipe, and the angle of the groove is 30 degrees. A ceramic metal layer is arranged on the inner wall of the base pipe; a ceramic layer is arranged on the inner wall of the ceramic metal layer; a first ceramic enamel layer is arranged on the inner wall of the ceramic layer, and second ceramic enamel layers are arranged on the ceramic metal layer at an end opening of the composite pipe and the side face of the ceramic layer. The manufacturing process comprises the following steps of length separation, groove machining, ceramic lining, enamelling of the inner wall and enamelling of the ceramic layer at the end opening of the pipe. Compared with the prior art, the metal-ceramic composite pipe has the advantages that one more layer of ceramic enamel is arranged on the inner wall of the metal-ceramic composite pipe subjected to antiseptic treatment, so that the corrosion resistance of the pipe is improved, the capacity of scale prevention and abrasion resistance of the pipe is improved, and the friction resistance of fluid is lowered; the ceramic enamel layer on the end face of the pipe can be molten under the welding temperature and solidified again, and therefore weld joints can be effectively sealed; the corrosion preservation and scale prevention of the whole inner wall of the pipe are achieved, and the service life of the pipe is prolonged.
Description
Technical field
The present invention relates to composite pipe, particularly relate to a kind of metal-ceramic composite tube and preparation process thereof.
Background technique
Pipeline is that human being's production is lived indispensable important component part, and in recent years, the consumption of the pipeline that China is annual is all more than 8,000 ten thousand tons, and the consumption that wherein only petroleum industry is annual is just more than 1,000 ten thousand tons.PetroChina Company Limited.'s yearbook data in 2010 display cut-off 2009 end of the year, only PetroChina Company Limited. oneself build up all kinds of Oilfield Pipelines 17.4453 ten thousand kilometers, gas field pipeline 3.9194 ten thousand kilometers, and annual about newly-built all kinds of pipeline about 20,000 kilometers, calculate thus, to the end of the year 2012, PetroChina Company Limited. will build all kinds of pipeline about 270,000 kilometers.Add China Petrochemical Industry and CNOOC, current oil field at home about has 450,000 kilometers, various pipeline.
Owing to containing the aggressive medium such as CO2, H2S, O2 and various ion, bacterium in oil, aqueous vapor, make water filling and all kinds of oil-gas gathering and transferring pipeline seriously corroded; In addition, pipeline scaling is the another large problem of gathering line, and because fouling mechanisms is complicated, scaling type is many, antiscale and scale removal difficulty large.Shengli Oil Field extraction sewage is quite serious to tubing corrosion, and average corrosion rate is 1-7mm/, and the pitting corrosion speed under effect of stress reaches 14mm/.The existing surface line of Daqing oil field about 40,000 kilometers, mean lifetime only has 9 years, year turnover rate 12.9%.The maximum scale velocity of Changqing oilfields sewer line reaches 100mm/, and it is stifled that pipeline work dirt just occurred in 3 months.
The physical dimension utilizing SHS technology can recover waste and old oil passageway generates cermet coating simultaneously, thus waste and old oil passageway manufacture again anticorrosion, wear-resisting, there is long service life ceramet composite oil pipe, the old tubing repair of tradition generally has cleaning sorting and the large class of lined duct two, these two kinds of techniques all do not recover the defect of oil pipe, it is only the remaining life utilizing oil pipe, and the performance of oil pipe itself does not get a promotion, from manufacture again different in essence.
Summary of the invention
The present invention is to solve above-mentioned deficiency, provides a kind of metal-ceramic composite tube and preparation process thereof.
Above-mentioned purpose of the present invention is realized by following technological scheme: a kind of metal-ceramic composite tube, it is characterized in that: comprise pipeline base tube, pipeline base tube is provided with groove, described groove is 30 degree, described pipeline base tube inwall is provided with Ceramic metal layer, described Ceramic metal layer inwall is provided with ceramic layer, and described ceramic layer inwall is provided with ceramic glaze layer one, and Ceramic metal layer and the ceramic layer side of described composite pipe port are provided with ceramic glaze layer two.
A preparation process for metal-ceramic composite tube, is characterized in that: comprise the following steps:
(1) length sorting: sorting is carried out to it by the length of pipeline;
(2) retaining wall on slope: different according to welding method, carries out retaining wall on slope to metal-ceramic composite tube road;
(3) lined ceramics: according to pipeline grade of steel and composition difference, adjust different aluminothermy systems, different additives is added in aluminothermy system, ceramic layer SHS process is reacted and generates the Ceramic metal layer close with pipe material, and form metallurgy combination with the inner-walls of duct of moment melting;
(4) inner-walls of duct glazing: inner-walls of duct glazing is divided into twice glazing, first time glazing adopts glaze spraying method, after SHS process has reacted, the temperature in the rear metal-ceramic composite tube road of SHS process reaction is accurately measured with temperature measuring device, and ensure that pipeline is with the axial-rotation of certain speed along pipeline, during setting temperature to be achieved, liquid ceramic glaze is sprayed at inner tube wall, glaze is made to be evenly distributed on inner-walls of duct under centrifugal action, and SHS process reaction more than temperature effect under rapid solidification, first time glazing glaze layer is thinner, mainly play effect ceramic surface being carried out to modification, improve the wettability of ceramic glaze at ceramic surface, second time glazing still adopts glaze spraying method, and glaze layer is thicker, and the large insulation stove after glaze spraying completes, homogeneous tube being put into controllable temperature is incubated into glaze, second time glazing meeting with the formal expansion of complete wetting on the glaze layer surface of first time glazing, forms smooth glaze paint at ceramic surface, reaches anticorrosion, the object of antiscale,
(5) pipe end ceramic layer glazing: at end face ceramic layer place, metal-ceramic composite tube road brushing glazing, then port is heated, glaze layer is solidified, repeatedly for several times, make the glazed thickness after solidification reach different thickness according to the wall thickness of pipe and size difference, be generally not less than 0.8mm.
The present invention's advantage is compared with prior art:
1, be compared with the prior art, the present invention first by ceramic glazing method and process application in metal-ceramic composite tube road.
2, the present invention this corrosion-resistant metal-ceramic composite tube road inwall gone up again one deck ceramic glaze, inner-walls of duct is made to become very smooth, not only increase the antiseptic power of pipeline, also improve antiscale and the abrasive resistance of pipeline, reduce the surface friction drag of fluid simultaneously.
3, the ceramic glaze layer of pipeline end face can solidify at the temperature of welding in melting again, realizes the effective sealing of butt welded seam, thus without the need to carrying out repaired mouth to pipe welding seam after welding.
4, by the present invention, really achieve the full inner wall anti-corrosive of pipeline, antiscale, substantially prolongs the working life of pipeline, for safety in production and cost efficiency provide strong support and guarantee.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
As shown in Figure 1, a kind of metal-ceramic composite tube, comprise pipeline base tube 1, pipeline base tube 1 is provided with groove 2, described groove 2 is 30 degree, and described pipeline base tube 1 inwall is provided with Ceramic metal layer 3, and described Ceramic metal layer 3 inwall is provided with ceramic layer 4, described ceramic layer 4 inwall is provided with ceramic glaze layer 1, and Ceramic metal layer 3 and ceramic layer 4 side of described composite pipe port are provided with ceramic glaze layer 26.
A preparation process for metal-ceramic composite tube, comprises the following steps:
(1) length sorting: sorting is carried out to it by the length of pipeline;
(2) retaining wall on slope: different according to welding method, carries out retaining wall on slope to metal-ceramic composite tube road;
(3) lined ceramics: according to pipeline grade of steel and composition difference, adjust different aluminothermy systems, different additives is added in aluminothermy system, ceramic layer SHS process is reacted and generates the Ceramic metal layer close with pipe material, and form metallurgy combination with the inner-walls of duct of moment melting;
(4) inner-walls of duct glazing: inner-walls of duct glazing is divided into twice glazing, first time glazing adopts glaze spraying method, after SHS process has reacted, the temperature in the rear metal-ceramic composite tube road of SHS process reaction is accurately measured with temperature measuring device, and ensure that pipeline is with the axial-rotation of certain speed along pipeline, during setting temperature to be achieved, liquid ceramic glaze is sprayed at inner tube wall, glaze is made to be evenly distributed on inner-walls of duct under centrifugal action, and SHS process reaction more than temperature effect under rapid solidification, first time glazing glaze layer is thinner, mainly play effect ceramic surface being carried out to modification, improve the wettability of ceramic glaze at ceramic surface, second time glazing still adopts glaze spraying method, and glaze layer is thicker, and the large insulation stove after glaze spraying completes, homogeneous tube being put into controllable temperature is incubated into glaze, second time glazing meeting with the formal expansion of complete wetting on the glaze layer surface of first time glazing, forms smooth glaze paint at ceramic surface, reaches anticorrosion, the object of antiscale,
(5) pipe end ceramic layer glazing: at end face ceramic layer place, metal-ceramic composite tube road brushing glazing, then port is heated, glaze layer is solidified, repeatedly for several times, make the glazed thickness after solidification reach different thickness according to the wall thickness of pipe and size difference, be generally not less than 0.8mm.
Now with 20#, Φ 114mm*14mm, 12 meters long, and the production of the ceramet composite steel tube of band ceramic glaze is example.Specifically comprise the following steps:
(1) according to the material of pipeline, length and wall thickness, the matching partss such as suitable aluminothermy system, centrifuge and helmet are selected;
(2) pipeline falls 30 degree of grooves;
(3) take aluminothermy system medicinal powder according to 1.6g/cm2 dose, and evenly add in pipeline along pipeline axial;
(4) pipeline is put into centrifuge and carry out thermite reaction;
(5), when reaction cooling reaches 500 degrees Celsius, the tube interior spraying glaze rotated, makes glaze solidify with the waste heat of self-propagating reaction;
(6) be cooled to after room temperature until pipe and carry out inwall second time glazing, after glazing, pipe is put into holding furnace 400 degrees Celsius insulation 20 minutes;
(7) brushing glazing on pipe port ceramic layer end face, and heat port glaze is solidified, above process several times repeatedly, makes glazed thickness reach 1.0mm;
(8) pipeline is detected, ensure that glaze paint is evenly without leak source;
(9) pipe ends upper end-hole protector;
(10) warehouse-in or delivery.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize specification of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (2)
1. a metal-ceramic composite tube, it is characterized in that: comprise pipeline base tube, pipeline base tube is provided with groove, described groove is 30 degree, described pipeline base tube inwall is provided with Ceramic metal layer, described Ceramic metal layer inwall is provided with ceramic layer, and described ceramic layer inwall is provided with ceramic glaze layer one, and Ceramic metal layer and the ceramic layer side of described composite pipe port are provided with ceramic glaze layer two.
2. a preparation process for metal-ceramic composite tube, is characterized in that: comprise the following steps:
(1) length sorting: sorting is carried out to it by the length of pipeline;
(2) retaining wall on slope: different according to welding method, carries out retaining wall on slope to metal-ceramic composite tube road;
(3) lined ceramics: according to pipeline grade of steel and composition difference, adjust different aluminothermy systems, different additives is added in aluminothermy system, ceramic layer SHS process is reacted and generates the Ceramic metal layer close with pipe material, and form metallurgy combination with the inner-walls of duct of moment melting;
(4) inner-walls of duct glazing: inner-walls of duct glazing is divided into twice glazing, first time glazing adopts glaze spraying method, after SHS process has reacted, the temperature in the rear metal-ceramic composite tube road of SHS process reaction is accurately measured with temperature measuring device, and ensure that pipeline is with the axial-rotation of certain speed along pipeline, during setting temperature to be achieved, liquid ceramic glaze is sprayed at inner tube wall, glaze is made to be evenly distributed on inner-walls of duct under centrifugal action, and SHS process reaction more than temperature effect under rapid solidification, first time glazing glaze layer is thinner, mainly play effect ceramic surface being carried out to modification, improve the wettability of ceramic glaze at ceramic surface, second time glazing still adopts glaze spraying method, and glaze layer is thicker, and the large insulation stove after glaze spraying completes, homogeneous tube being put into controllable temperature is incubated into glaze, second time glazing meeting with the formal expansion of complete wetting on the glaze layer surface of first time glazing, forms smooth glaze paint at ceramic surface, reaches anticorrosion, the object of antiscale,
(5) pipe end ceramic layer glazing: at end face ceramic layer place, metal-ceramic composite tube road brushing glazing, then port is heated, glaze layer is solidified, repeatedly for several times, make the glazed thickness after solidification reach different thickness according to the wall thickness of pipe and size difference, be generally not less than 0.8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510528225.9A CN105351635B (en) | 2015-08-26 | 2015-08-26 | Metal ceramic composite pipe and manufacturing process thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510528225.9A CN105351635B (en) | 2015-08-26 | 2015-08-26 | Metal ceramic composite pipe and manufacturing process thereof |
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| CN105351635A true CN105351635A (en) | 2016-02-24 |
| CN105351635B CN105351635B (en) | 2023-09-29 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106869813A (en) * | 2017-01-20 | 2017-06-20 | 杨永利 | A kind of anti-sulphur oil pipe overall structure of glazing cermet and its processing method |
| CN107131393A (en) * | 2017-06-08 | 2017-09-05 | 大连辉华新材料有限公司 | A kind of thermal insulation tubing and preparation method thereof |
| CN107859142A (en) * | 2017-09-30 | 2018-03-30 | 苏交科集团股份有限公司 | Anti-corrosion leak-proof layer and preparation method thereof |
| CN110104949A (en) * | 2019-03-26 | 2019-08-09 | 合肥卓越义齿制作有限公司 | A kind of dental zirconium oxide green body glazing method |
| CN111057966A (en) * | 2019-12-19 | 2020-04-24 | 安徽五秒达网络科技有限公司 | Corrosion-resistant high-strength solar photovoltaic bracket and manufacturing process thereof |
| CN116025774A (en) * | 2022-10-14 | 2023-04-28 | 江苏新长江无缝钢管制造有限公司 | Composite seamless steel pipe for oil pipeline and manufacturing method thereof |
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| CN103822031A (en) * | 2013-05-03 | 2014-05-28 | 胜利油田金岛工程安装有限责任公司 | Glass-lined anti-corrosion steel pipe producing and welding processes |
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| CN205036974U (en) * | 2015-08-26 | 2016-02-17 | 杨永利 | Compound pipe of cermet |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106869813A (en) * | 2017-01-20 | 2017-06-20 | 杨永利 | A kind of anti-sulphur oil pipe overall structure of glazing cermet and its processing method |
| CN107131393A (en) * | 2017-06-08 | 2017-09-05 | 大连辉华新材料有限公司 | A kind of thermal insulation tubing and preparation method thereof |
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| CN107859142A (en) * | 2017-09-30 | 2018-03-30 | 苏交科集团股份有限公司 | Anti-corrosion leak-proof layer and preparation method thereof |
| CN107859142B (en) * | 2017-09-30 | 2024-03-08 | 苏交科集团股份有限公司 | Anti-corrosion impermeable layer and manufacturing method thereof |
| CN110104949A (en) * | 2019-03-26 | 2019-08-09 | 合肥卓越义齿制作有限公司 | A kind of dental zirconium oxide green body glazing method |
| CN111057966A (en) * | 2019-12-19 | 2020-04-24 | 安徽五秒达网络科技有限公司 | Corrosion-resistant high-strength solar photovoltaic bracket and manufacturing process thereof |
| CN116025774A (en) * | 2022-10-14 | 2023-04-28 | 江苏新长江无缝钢管制造有限公司 | Composite seamless steel pipe for oil pipeline and manufacturing method thereof |
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