CN211118058U - Superfine ceramic and metal composite pipe - Google Patents
Superfine ceramic and metal composite pipe Download PDFInfo
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- CN211118058U CN211118058U CN201922073397.8U CN201922073397U CN211118058U CN 211118058 U CN211118058 U CN 211118058U CN 201922073397 U CN201922073397 U CN 201922073397U CN 211118058 U CN211118058 U CN 211118058U
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Abstract
The utility model relates to a superfine ceramic and metal composite pipe, which comprises a metal pipe body with the diameter below 10cm, wherein a ceramic pipe is embedded in the metal pipe body, and the ceramic pipe and the metal pipe body are fixed through an inorganic layer; the ceramic tube is formed by splicing a plurality of ceramic sheets, and adjacent ceramic sheets are bonded and fixed through a high-temperature-resistant corrosion-resistant adhesive. The utility model also provides a preparation method of above-mentioned superfine ceramic, metal composite pipe, including following step: 1) manufacturing a ceramic chip; 2) manufacturing a ceramic tube; 3) preparing a composite pipe: inserting the ceramic tube prepared in the step 2) into a metal tube body to ensure seamless adhesion of the ceramic tube and the inorganic layer, and curing the inorganic layer to prepare the superfine ceramic and metal composite tube. The utility model discloses can be anticorrosive, wear-resisting, high temperature resistant, shock resistance is good, and production process is simple, low cost.
Description
Technical Field
The utility model relates to a special pipe technical field, concretely relates to superfine ceramic, metal composite pipe.
Background
The special pipe is a pipe used in special environment, different from a common pipe, the use environment of the special pipe is determined, and the special pipe needs to have special performance, such as high temperature resistance, wear resistance, impact resistance and the like. For example, the tertiary air duct of the cement kiln is a special pipeline for the cement kiln, when the cement kiln operates, the temperature change of the inner position of the pipeline is large, the air speed in the pipeline is high, a large amount of fine clinker particles are contained in hot air flow, and the pipeline is directly washed and eroded by the hot air flow containing dust for a long time. And the oil pipeline is used for conveying crude oil and works under high-pressure and corrosive conditions for a long time. In these special scenarios, special pipes are required.
At present, for a special pipe, a cast iron or stainless steel pipe body is generally adopted, and a certain wear-resistant, high-temperature-resistant or corrosion-resistant pouring material is poured on the inner surface to form the inner surface so as to meet the requirements of different scenes. The most common is a composite ceramic tube inside a metal tube. The ceramic has the advantages of wear resistance, high temperature resistance and corrosion resistance, so that the composite pipe has excellent performance. However, the existing ceramic composite tube has complex preparation process, large processing difficulty of the ceramic tube and extremely high cost. Secondly, the existing ceramic composite pipe has poor impact resistance, the inner ceramic wall is easy to break, damage and fall off, and the service life is short. Finally, the prior ceramic composite pipe has large pipe diameter, the composite pipe with the pipe diameter of less than 10cm is extremely difficult to produce, the composite pipe with the pipe diameter of less than 5cm cannot be produced, and the ultra-long seamless composite pipe cannot be produced at present.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to the technical problem who exists among the prior art, provide a superfine ceramic, metal composite pipe and preparation method thereof, can be anticorrosive, wear-resisting, high temperature resistant, shock resistance is good, and production process is simple, low cost.
The utility model provides an above-mentioned technical problem's technical scheme as follows: a superfine ceramic and metal composite pipe comprises a metal pipe body with the diameter of less than 10cm, wherein a ceramic pipe is embedded in the metal pipe body, and the ceramic pipe and the metal pipe body are fixed through an inorganic layer; the ceramic tube is formed by splicing a plurality of ceramic sheets, and adjacent ceramic sheets are bonded and fixed through a high-temperature-resistant corrosion-resistant adhesive.
The utility model has the advantages that: the ceramic pipe is embedded in the metal pipe body and is formed by splicing a plurality of ceramic chips, so that the processing and production difficulty is low, and the manufacturing cost is low; the utility model makes the ceramic inner tube by splicing a plurality of ceramic plates into a tube, and decomposes the ceramic tube into individual ceramic plates, thereby greatly reducing the area of a single ceramic part and greatly improving the shock resistance; the ceramic chips of the utility model are bonded by the high temperature resistant and corrosion resistant adhesive, after the processing, the adhesive can be used as a filler to completely fill the gaps between the ceramic chips, the whole sealing performance is good, and the anti-seepage capability is strong; the utility model discloses splice into ceramic pipe with the ceramic chip, can process superfine pottery, metal composite pipe, minimum pipe diameter can accomplish below 10 cm.
On the basis of the technical scheme, the utility model discloses can also do following improvement.
Further, the high-temperature-resistant and corrosion-resistant adhesive is one of organic silicon adhesive, phenolic resin adhesive, temperature-resistant epoxy adhesive and polyimide adhesive.
The beneficial effect of adopting the further scheme is that: good adhesion property, high temperature resistance and corrosion resistance.
Furthermore, a combination groove is formed in one side of the ceramic chip, and a protrusion matched with the combination groove in shape is arranged on the other side of the ceramic chip. The size of the coupling groove is preferably larger than that of the protrusion.
The beneficial effect of adopting the further scheme is that: can guarantee to combine the concatenation more convenient, can adjust the clearance between the ceramic chip as required simultaneously, guarantee that the assembly has great surplus.
Further, the outer side of the ceramic tube is coated with a polyurethane film.
The beneficial effect of adopting the further scheme is that: set up the polyurethane membrane, can effectively seal ceramic pipe, prevent the seepage, can also play protection, anticorrosive effect simultaneously, when the assembly, the membrane can also provide cohesion to a certain extent, plays the effect of stereotyping to ceramic pipe.
Further, the ceramic chip is an alumina ceramic chip.
The beneficial effect of adopting the further scheme is that: the aluminum oxide ceramic is adopted, the cost is lower, the performance is better, other metal oxides are added, the impact resistance and the corrosion resistance of the ceramic can be improved, a glaze surface with certain roughness is formed on the surface of the sintered ceramic, the ceramic sheet is convenient to attach to the inside of a metal pipe body, the anti-falling performance is improved, the metal oxides can be used as a filler to fill bubbles formed in the ceramic sintering process, the ceramic sheet is more compact, and the impact resistance is better.
Further, the inorganic layer is a cement layer.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a portion of the enlarged structure of FIG. 1;
FIG. 3 is a schematic view of an assembly structure of the ceramic chip of the present invention;
in the figure: 1. the ceramic pipe comprises a metal pipe body, 2, a ceramic pipe, 2a, ceramic chips, 2b, protrusions, 2c, a combination groove, 3, an inorganic layer, 4 and a polyurethane film.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 and 2, the utility model relates to a superfine ceramic, metal composite pipe, including the diameter at the metal body 1 below 10cm, the embedded ceramic pipe 2 that is equipped with of metal body 1, it is fixed through inorganic layer 3 between ceramic pipe 2 and the metal body 1. The ceramic tube 2 is formed by splicing a plurality of ceramic sheets 2a, and the adjacent ceramic sheets 2a are bonded and fixed through a high-temperature-resistant corrosion-resistant adhesive.
The above-mentioned metal pipe body 1, ceramic pipe 2 and inorganic layer 3 are the basic structure framework of the present invention, and the purpose is to make metal pipe body 1 and ceramic pipe 2 combine together through inorganic layer 3, and the combination part has no gap. The metal pipe body 1, the ceramic pipe 2, and the inorganic layer 3 may be in various forms regardless of the shape in fig. 1.
The utility model discloses a ceramic chip 2a can adopt trapezoidal form, can also set up the joint structure and be used for combining. The utility model discloses an inorganic layer 3 preferably adopts the cement layer.
The high-temperature-resistant and corrosion-resistant adhesive is preferably one of organic silicon adhesive, phenolic resin adhesive, temperature-resistant epoxy adhesive and polyimide adhesive. The utility model discloses a high temperature resistant corrosion-resistant adhesive bonds ceramic chip 2a, splices into ceramic pipe 2, and high temperature resistant corrosion-resistant adhesive can also regard as the filler except the bonding effect, fills the combination gap between the ceramic chip 2a, plays the effect of antiseep. In addition, because the adhesive is used as the filler, a certain gap can be allowed between the tiles 2a during assembly, so that a larger assembly margin can be obtained, and the splicing operation and the actual assembly are more facilitated.
As shown in fig. 3, the present invention further provides an improved technical solution, in the improved technical solution, a combining groove 2c is opened on one side of the ceramic piece 2a, and a protrusion 2b adapted to the shape of the combining groove 2c is provided on the other side. The size of the coupling groove 2c is preferably larger than that of the protrusion 2 b.
The protrusion 2b and the combining groove 2c are used for facilitating positioning and combining when the ceramic pieces 2a are spliced, and have a certain sealing effect, so that the formed ceramic tube 2 can be prevented from leaking to a certain extent. The protrusions 2b and the coupling grooves 2c may be in various forms regardless of the shape of fig. 3. For example, the sectional shapes of the protrusions 2b and the coupling grooves 2c may be triangular, semicircular, semi-elliptical, etc. The size of the combining groove 2c and the protrusion 2b is set for convenient assembly, and simultaneously, the gap between the ceramic pieces 2c can be adjusted according to requirements, thereby ensuring that the assembly has larger allowance.
As shown in fig. 2, the present invention provides another improved technical solution, in the improved technical solution, the outside of the ceramic tube 2 is coated with a layer of polyurethane film 4.
Above-mentioned modified technical scheme can effectively seal ceramic pipe 2, prevents the seepage, can also play protection, anticorrosive effect simultaneously, and when the assembly, the membrane can also provide cohesion to a certain extent, plays the effect of stereotyping ceramic pipe 2.
The ceramic chip 2a of the utility model is the core component of the utility model, and preferably adopts the alumina ceramic with low cost and easy sintering and forming. The ceramic chip 2a of the utility model adopts the following components: SiO 224～5％、ZrO21.2～2％、CaO 1～1.8％、MgO 0.5～0.8％、SiC 1～1.6％、TiO20.05-0.15% and Al for the rest2O3. Wherein Al is2O3The content of (B) is preferably 90% or more.
The ceramic chip 2a of the utility model is preferably prepared by adopting the following method:
firstly, selecting raw materials of each component with the granularity of less than 50 mu m; then uniformly mixing the raw materials of each component according to the component proportion; then pressing the uniformly mixed powder into a ceramic chip 2a shape directly or adding a bonding agent to mix uniformly and then molding into a ceramic chip 2a shape; and finally, sintering the formed ceramic chip 2a blank into the ceramic chip at high temperature, wherein the sintering temperature is more than 1200 ℃.
The ceramic chip 2a prepared by the method is based on the characteristic that the alumina ceramics is easy to foam in the sintering process. This results in a decrease in impact resistance of the ceramic. And in the above mode, the utility model has increased other metal oxide, can improve porcelainous shock resistance and corrosion resisting property, make the ceramic surface of sintering form the glaze that has certain roughness simultaneously, the potsherd of being convenient for is attached to in the tubular metal resonator, improves anti dropout performance and the firmness that combines with inorganic layer 3. SiO 22Addition of CaO and SiCThe ceramic tile can also be used as a filler to fill bubbles formed in the ceramic sintering process, so that the ceramic tile is more compact and has better impact resistance.
The utility model discloses a superfine ceramic, metal composite pipe adopts following preparation method to prepare:
1) manufacturing the ceramic tile 2 a: according to SiO 24～5％、ZrO21.2～2％、CaO 1～1.8％、MgO0.5～0.8％、SiC 1～1.6％、TiO20.05-0.15% and Al for the rest2O3The proportioning of the components is that raw material powder with the granularity of 50 mu m is selected and evenly mixed, the evenly mixed powder is made into a blank of the ceramic chip 2a, and then the blank is sintered at high temperature to be made into the ceramic chip 2 a;
2) manufacturing a ceramic tube 2: according to the pipe diameter, selecting a proper number of ceramic sheets 2a, splicing into a circular ceramic ring, bonding the ceramic sheets 2a by using a high-temperature-resistant corrosion-resistant adhesive, and then bonding the ceramic ring by using the high-temperature-resistant corrosion-resistant adhesive according to the pipe length requirement to prepare a ceramic pipe 2;
3) preparing a composite pipe: coating an inorganic layer 3 in the metal pipe body 1, inserting the ceramic pipe 2 prepared in the step 2) into the metal pipe body 1 when the inorganic layer 3 is not solidified, ensuring seamless adhesion of the ceramic pipe 2 and the inorganic layer 3, and preparing the superfine ceramic and metal composite pipe after the inorganic layer 3 is solidified.
The ceramic tube 2 is embedded in the metal tube body 1, and the ceramic tube 2 is formed by splicing a plurality of ceramic sheets 2a, so that the processing and production difficulty is low, and the manufacturing cost is low; the ceramic pieces 2a of the utility model are bonded by the high temperature resistant and corrosion resistant adhesive, after the processing, the adhesive can be used as a filler to completely fill the gaps between the ceramic pieces 2a, the whole sealing performance is good, and the anti-seepage capability is strong; the ceramic sheets 2a are spliced into the ceramic tube 2, the ceramic and metal composite tube with extremely fine diameter can be processed, and the minimum diameter can be less than 10 cm; the utility model discloses a make ceramic pipe 2 wholly, then insert the mode processing in the metal body 1, can process the extremely long seamless superfine composite pipe of length, the pipe of performance ratio sectional type such as withstand voltage, shock-resistant will improve several times.
The utility model discloses a pipe can be in multiple special scene application, for example can be as desulfurization system's pipeline, can regard as flue gas pipeline, can regard as oil pipeline, can also regard as the tertiary tuber pipe of cement kiln, and the range of application is very extensive, and almost any wear-resisting, high temperature resistant and/or anticorrosive scene can all use the utility model discloses a pipe.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (7)
1. The utility model provides a superfine ceramic, metal composite pipe, includes that the diameter is at metal body (1) below 10cm, its characterized in that: a ceramic tube (2) is embedded in the metal tube body (1), and the ceramic tube (2) and the metal tube body (1) are fixed through an inorganic layer (3); the ceramic tube (2) is formed by splicing a plurality of ceramic sheets (2a), and the adjacent ceramic sheets (2a) are bonded and fixed through a high-temperature-resistant corrosion-resistant adhesive.
2. The ultra-fine ceramic-metal composite tube of claim 1, wherein: the high-temperature-resistant corrosion-resistant adhesive is one of organic silicon adhesive, phenolic resin adhesive, temperature-resistant epoxy adhesive and polyimide adhesive.
3. The ultra-fine ceramic-metal composite tube of claim 1, wherein: one side of the ceramic chip (2a) is provided with a combination groove (2c), and the other side is provided with a bulge (2b) matched with the combination groove (2c) in shape.
4. The ultra-fine ceramic-metal composite tube of claim 3, wherein: the size of the coupling groove (2c) is larger than that of the protrusion (2 b).
5. The ultra-fine ceramic-metal composite tube of claim 1, wherein: the ceramic pieces (2a) are alumina ceramic pieces.
6. The ultra-fine ceramic-metal composite tube of claim 1, wherein: the outer side of the ceramic tube (2) is coated with a polyurethane film (4).
7. The ultra-fine ceramic-metal composite tube of claim 1, wherein: the inorganic layer (3) is a cement layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922073397.8U CN211118058U (en) | 2019-11-25 | 2019-11-25 | Superfine ceramic and metal composite pipe |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922073397.8U CN211118058U (en) | 2019-11-25 | 2019-11-25 | Superfine ceramic and metal composite pipe |
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| CN211118058U true CN211118058U (en) | 2020-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922073397.8U Active CN211118058U (en) | 2019-11-25 | 2019-11-25 | Superfine ceramic and metal composite pipe |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110864166A (en) * | 2019-11-25 | 2020-03-06 | 襄阳慧通电力科技有限公司 | Superfine ceramic and metal composite pipe and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110864166A (en) * | 2019-11-25 | 2020-03-06 | 襄阳慧通电力科技有限公司 | Superfine ceramic and metal composite pipe and preparation method thereof |
| CN110864166B (en) * | 2019-11-25 | 2024-05-28 | 襄阳慧通电力科技有限公司 | Superfine ceramic and metal composite pipe and preparation method thereof |
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