CN112212097A - Wear-resisting tee bend of ceramic lining - Google Patents
Wear-resisting tee bend of ceramic lining Download PDFInfo
- Publication number
- CN112212097A CN112212097A CN202011009060.1A CN202011009060A CN112212097A CN 112212097 A CN112212097 A CN 112212097A CN 202011009060 A CN202011009060 A CN 202011009060A CN 112212097 A CN112212097 A CN 112212097A
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- section
- wall
- ceramic ring
- ceramic
- wear
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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
- F16L41/00—Branching pipes; Joining pipes to walls
- F16L41/02—Branch units, e.g. made in one piece, welded, riveted
- F16L41/021—T- or cross-pieces
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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
- F16L41/00—Branching pipes; Joining pipes to walls
- F16L41/02—Branch units, e.g. made in one piece, welded, riveted
- F16L41/026—Branch units, e.g. made in one piece, welded, riveted with a layer protecting against erosion
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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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- 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
- F16L58/18—Protection of pipes or pipe fittings against corrosion or incrustation specially adapted for pipe fittings
- F16L58/188—Protection of pipes or pipe fittings against corrosion or incrustation specially adapted for pipe fittings for branching pipes; for joining pipes to walls
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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
- F16L59/00—Thermal insulation in general
- F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The invention discloses a ceramic lining wear-resistant tee joint which comprises a first section of outer wall, a second section of outer wall, a third section of outer wall, a middle section of outer wall, a first section of ceramic ring, a second section of ceramic ring, a third section of ceramic ring and a middle section of ceramic ring, wherein the thickness of the middle section of ceramic ring is larger than that of the first section of ceramic ring, the second section of ceramic ring and the third section of ceramic ring; concave platforms are arranged at the joints of the middle section ceramic rings and the end surfaces of other ceramic rings to form a concave-convex inserting structure. According to the invention, the inner wall of the tee joint is covered with a plurality of sections of integral wear-resistant ceramic rings, so that the ceramic thickness of the intersecting part is increased, and the wear resistance is increased. The ceramic rings are in a splicing structure, the splicing position avoids easy-wearing points, no gap exists after splicing, the wear resistance and the corrosion resistance are greatly improved, and the ceramic rings are convenient to install. The wear-resistant three-way pipe has the advantages of good wear resistance, corrosion resistance and impact resistance, longer service life than the traditional wear-resistant three-way pipe, light weight and the like.
Description
Technical Field
The invention relates to a tee joint for conveying organic silicon powder, limestone powder and other materials, in particular to a ceramic lining wear-resistant tee joint.
Background
In the industries of chemical industry, electric power, cement, coal washing, mine and the like, organic silicon powder, limestone powder and other materials which are easy to cause pipeline abrasion are conveyed by adopting pipelines, branch pipes are usually connected by adopting a tee joint, the flow direction of the materials is changed, the requirement on the abrasion resistance of the tee joint is higher, and the tee joint is more outstanding particularly in the high-temperature environment of more than 150 ℃. The traditional tee joint adopts centrifugal casting, is influenced by the process, has a thin casting layer, generally has the thickness not more than 5mm and has poor wear resistance. Also adopt the tee bend as shown in figure 1, paste the little potsherd of mosaic formula at the tee bend inner wall, improve its wearability, but the little potsherd of mosaic formula concatenation back gap is many, and the ceramic preparation degree of difficulty of intersecting department is big, very easily strikes after pasting and drops, and wear resistance promotes not ideal, and just temperature resistance corrosion resistance is poor, synthesizes feedback information in the producer use, and the material still can wear and tear ceramic concatenation department, causes outer wall steel spare to rub open, and the material leaks.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects and shortcomings in the background technology and providing a ceramic lining wear-resistant tee joint to further improve the wear resistance.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
a ceramic lining wear-resistant tee joint is disclosed, wherein the outer wall of the tee joint comprises a first section outer wall, a second section outer wall, a third section outer wall and a middle section outer wall, the first section outer wall is connected to the middle section outer wall, the second section outer wall and the third section outer wall are arranged on two sides of the middle section outer wall, the outer diameters of the second section outer wall and the third section outer wall are smaller than the inner diameter of the middle section outer wall, and the second section outer wall and the third section outer wall are connected with the middle section outer wall through connecting pieces; the inner side of the outer wall of the first section is provided with a first section of ceramic ring, the inner side of the outer wall of the second section is provided with a second section of ceramic ring, the inner side of the outer wall of the third section is provided with a third section of ceramic ring, the inner side of the outer wall of the middle section is provided with a middle section of ceramic ring, and the thickness of the middle section of ceramic ring is larger than that of the first section of ceramic ring, the second section of ceramic ring and; concave platforms are arranged at the joints of the middle section ceramic ring and the end surfaces of the first section ceramic ring, the second section ceramic ring and the third section ceramic ring to form a concave-convex inserting structure; or the second section of ceramic ring, the third section of ceramic ring and the middle section of ceramic ring are integrated, and concave platforms are arranged at the joints of the middle section of ceramic ring and the end face of the first section of ceramic ring to form a concave-convex inserting structure.
Furthermore, flanges are arranged at the pipe orifices of the first section outer wall, the second section outer wall and the third section outer wall.
Furthermore, the outer wall of the tee joint is connected with the ceramic ring through adhesive layers, and the flange is connected with the ceramic ring through adhesive layers.
Furthermore, inverted cone-shaped protruding parts are arranged at the pipe openings of the first section of ceramic ring, the second section of ceramic ring and the third section of ceramic ring, and correspondingly, a concave part is arranged on the inner wall of the flange.
Furthermore, the second section outer wall, the third section outer wall and the middle section outer wall are coaxially arranged.
Furthermore, the first section outer wall, the third section outer wall and the middle section outer wall are integrated, and the third section outer wall is connected with the middle section outer wall through an end wall arranged on the end face of the middle section outer wall.
Furthermore, the outer diameter of the middle section ceramic ring is larger than the outer diameters of the second section ceramic ring and the third section ceramic ring, and the inner diameter of the middle section ceramic ring is consistent with that of the second section ceramic ring and the third section ceramic ring.
Furthermore, the lengths of the first section of ceramic ring, the second section of ceramic ring and the third section of ceramic ring respectively exceed the inner side end faces of the first section of outer wall, the second section of outer wall and the third section of outer wall.
Compared with the prior art, the invention has the beneficial effects that:
the tee joint wear point is mainly at the intersection part, namely the fluid turning part, and the intersection part is mainly at the intersection part and the inlet and outlet, and the existing structure is adopted, so that perfect splicing cannot be guaranteed at the intersection line, and the tee joint wear point is always a wear point. According to the invention, the inner wall of the tee joint is covered with a plurality of sections of integral wear-resistant ceramic rings, so that the ceramic thickness of the intersecting part is increased, and the wear resistance is increased. The inlet and the outlet, namely the rotational flow is easily generated at the pipeline joint when fluid enters and exits, and the reverse taper structure is arranged at the inlet and the outlet, so that the scouring of rotational flow materials to the joint is reduced. The ceramic rings are in a splicing structure, the splicing position avoids easy-to-wear points, no gap exists after splicing, the wear resistance and the corrosion resistance are greatly improved, and the ceramic rings are convenient to install. Because the ceramic has excellent heat insulation performance, and the seamless structure after splicing is matched, the temperature resistance is greatly improved. Therefore, the wear-resistant three-way pipe has the advantages of good wear resistance, corrosion resistance and impact resistance, longer service life than the traditional wear-resistant three-way pipe, light weight and the like. The composite material is suitable for pipelines with large abrasion and high temperature, is particularly suitable for conveying tiny powder particles such as organic silica powder, limestone powder and the like, and has the service performance more than 5 times that of the existing structure.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic representation of a prior art tee;
FIG. 2 is a schematic representation of a tee of one embodiment of the present invention;
wherein: 1. a first section outer wall; 2. a second section outer wall; 3. a third section outer wall; 4. the outer wall of the middle section; 5. a connecting member; 6. a first segment of ceramic ring; 7. a second section of ceramic ring; 8. a third section of ceramic ring; 9. a ceramic ring at the middle section; 10. an adhesive layer; 401. an end wall; 601. an inverted conical protrusion.
Detailed Description
In order to facilitate understanding of the invention, the invention will be described more fully and in detail with reference to the accompanying drawings and preferred embodiments, but the scope of the invention is not limited to the specific embodiments below.
Unless otherwise defined, all terms of art used hereinafter have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the present invention.
Referring to fig. 2, the ceramic lining wear-resistant tee joint of an embodiment of the present invention may be made of steel, and includes a first section of outer wall 1, a second section of outer wall 2, and a third section of outer wall 3, forming a T shape, where the first section of outer wall 1 is located between the second section of outer wall 2 and the third section of outer wall 3 and is perpendicular to the second section of outer wall 2 and the third section of outer wall 3. The pipe orifices of the first section outer wall 1, the second section outer wall 2 and the third section outer wall 3 are connected with flanges.
The first section outer wall 1 is vertically connected to the middle section outer wall 4, and the second section outer wall 2 and the third section outer wall 3 are coaxially arranged on two sides of the middle section outer wall 4. The outer diameters of the second section outer wall 2 and the third section outer wall 3 are both smaller than the inner diameter of the middle section outer wall 4. The second section outer wall 2 is connected with the middle section outer wall 4 through a connecting piece 5. The third section outer wall 3 may also be connected to the middle section outer wall 4 by a transition piece. Or as shown in fig. 2, the middle section outer wall 4 is provided with an end wall 401 perpendicular to the annular tube wall, and is connected with the third section outer wall 3 through the end wall 401, so that the first section outer wall 1, the third section outer wall 3 and the middle section outer wall 4 can be integrated, and the connection strength is increased. All the outer walls of the pipelines can be connected by welding.
The inner side of the outer wall is provided with a ceramic ring made of alumina ceramic, and the outer wall is connected with the ceramic ring and the flange is connected with the ceramic ring through adhesive layers 10. The first section of ceramic ring 6 is arranged on the inner side of the first section of outer wall 1, the second section of ceramic ring 7 is arranged on the inner side of the second section of outer wall 2, and the third section of ceramic ring 8 is arranged on the inner side of the third section of outer wall 3. The middle section ceramic ring 9 is arranged on the inner side of the middle section outer wall 4. The thickness (or outer diameter) of the middle section ceramic ring 9 is larger than the thickness (or outer diameter) of the second section ceramic ring 7 and the third section ceramic ring 8, and the inner diameter of the middle section ceramic ring 9 is consistent with that of the second section ceramic ring 7 and the third section ceramic ring 8. Therefore, the thickness of the ceramic ring is larger than that of other positions at the intersection of the first section outer wall 1 and the middle section outer wall 4, the wear resistance is improved, the wear proportion of the whole tee joint is relatively balanced, and the service life of the tee joint reaches the maximum value.
The first section ceramic ring 6, the second section ceramic ring 7, the third section ceramic ring 8 and the middle section ceramic ring 9 can be in a plug-in form, for example, the first section ceramic ring 6, the second section ceramic ring 7 and the third section ceramic ring 8 are in a complete cylinder shape, and the lengths thereof respectively exceed the inner end faces of the first section outer wall 1, the second section outer wall 2 and the third section outer wall 3. Except that the middle section ceramic ring 9 is provided with an opening and is communicated with the first section ceramic ring 6, concave platforms are arranged at the insertion positions of the end surfaces of the first section ceramic ring 6, the second section ceramic ring 7 and the third section ceramic ring 8, so that a concave-convex insertion structure is formed. The ceramic ring splicing part avoids the easy-wearing point, the resistance of the materials at the intersecting part is minimized, the wear resistance is improved, perfect seamless splicing is realized, the installation is convenient, and the material cost and the maintenance cost are greatly reduced.
If first section outer wall 1, third section outer wall 3, interlude outer wall 4 formula as an organic whole, can bond interlude ceramic ring 9 and interlude outer wall 4 earlier during the preparation, then bond first section ceramic ring 6 and third section ceramic ring 8 with first section outer wall 1 and third section outer wall 3 respectively, it is good to peg graft first section ceramic ring 6 and third section ceramic ring 8 with interlude ceramic ring 9 simultaneously, then bond second section ceramic ring 7 in second section outer wall 2 inside back, be connected second section outer wall 2 with interlude outer wall 4 through connecting piece 5, it is good to peg graft second section ceramic ring 7 with interlude ceramic ring 9 simultaneously. In this case, of course, the second ceramic ring segment 7, the third ceramic ring segment 8 and the intermediate ceramic ring segment 9 may be formed as a single piece.
An inverted conical protrusion 601 may be provided at the inlet of the ceramic ring, and a corresponding recess may be provided on the inner wall of the flange to thicken the inlet. The structure form of the inverted cone thickening is adopted, the thickness of the adhesive layer 10 at the inlet is reduced as much as possible, and the phenomenon that the overall service life is influenced because the materials wash away the adhesive layer 10 is prevented.
The foregoing is considered as illustrative of the preferred embodiments of the invention and is not to be construed as limiting the invention in any way. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should fall within the protection scope of the technical scheme of the present invention, unless the technical spirit of the present invention departs from the content of the technical scheme of the present invention.
Claims (8)
1. The ceramic lining wear-resistant tee joint is characterized in that the outer wall of the tee joint comprises a first section outer wall (1), a second section outer wall (2), a third section outer wall (3) and a middle section outer wall (4), wherein the first section outer wall (1) is connected to the middle section outer wall (4), the second section outer wall (2) and the third section outer wall (3) are arranged on two sides of the middle section outer wall (4), the outer diameters of the second section outer wall (2) and the third section outer wall (3) are smaller than the inner diameter of the middle section outer wall (4), and the second section outer wall (2) and the third section outer wall (3) are connected with the middle section outer wall (4) through a connecting piece (5) or an end wall (401) arranged on the end;
a first section of ceramic ring (6) is arranged on the inner side of the first section of outer wall (1), a second section of ceramic ring (7) is arranged on the inner side of the second section of outer wall (2), a third section of ceramic ring (8) is arranged on the inner side of the third section of outer wall (3), a middle section of ceramic ring (9) is arranged on the inner side of the middle section of outer wall (4), and the thickness of each middle section of ceramic ring (9) is larger than that of each of the first section of ceramic ring (6), the second section of ceramic ring (7) and the third section of ceramic;
concave platforms are arranged at the joints of the middle section ceramic ring (9) and the end surfaces of the first section ceramic ring (6), the second section ceramic ring (7) and the third section ceramic ring (8) to form a concave-convex inserting structure; or the second section of ceramic ring (7), the third section of ceramic ring (8) and the middle section of ceramic ring (9) are integrated, and the middle section of ceramic ring (9) is provided with a concave table at the joint with the end face of the first section of ceramic ring (6) to form a concave-convex inserting structure.
2. The ceramic lining wear-resistant tee joint of claim 1, wherein flanges are arranged at the pipe openings of the first section outer wall (1), the second section outer wall (2) and the third section outer wall (3).
3. The ceramic lined wear tee of claim 2, wherein the connection between the tee outer wall and the ceramic ring, and between the flange and the ceramic ring, is by means of adhesive layers (10).
4. The ceramic-lined wear-resistant tee joint according to claim 2 or 3, wherein inverted cone-shaped protrusions (601) are arranged at the pipe openings of the first-stage ceramic ring (6), the second-stage ceramic ring (7) and the third-stage ceramic ring (8), and correspondingly, concave portions are arranged on the inner wall of the flange.
5. The ceramic lined wear tee of claim 1, wherein the second (2), third (3) and intermediate (4) segment outer walls are coaxially arranged.
6. The ceramic-lined wear-resistant tee joint according to claim 1 or 5, wherein the first-section outer wall (1), the third-section outer wall (3) and the middle-section outer wall (4) are integrated, and the third-section outer wall (3) is connected with the middle-section outer wall (4) through an end wall (401) arranged on the end face of the middle-section outer wall (4).
7. The ceramic-lined wear-resistant tee joint of claim 1 or 5, wherein the outer diameter of the middle-section ceramic ring (9) is larger than the outer diameters of the second-section ceramic ring (7) and the third-section ceramic ring (8), and the inner diameter of the middle-section ceramic ring (9) is consistent with the inner diameters of the second-section ceramic ring (7) and the third-section ceramic ring (8).
8. The ceramic-lined wear-resistant tee joint according to claim 1 or 5, wherein the lengths of the first-section ceramic ring (6), the second-section ceramic ring (7) and the third-section ceramic ring (8) exceed the inner side end faces of the first-section outer wall (1), the second-section outer wall (2) and the third-section outer wall (3), respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011009060.1A CN112212097A (en) | 2020-09-23 | 2020-09-23 | Wear-resisting tee bend of ceramic lining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011009060.1A CN112212097A (en) | 2020-09-23 | 2020-09-23 | Wear-resisting tee bend of ceramic lining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112212097A true CN112212097A (en) | 2021-01-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011009060.1A Pending CN112212097A (en) | 2020-09-23 | 2020-09-23 | Wear-resisting tee bend of ceramic lining |
Country Status (1)
| Country | Link |
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| CN (1) | CN112212097A (en) |
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| CN103234089A (en) * | 2013-04-10 | 2013-08-07 | 浙江菲达通球环保管业有限公司 | Steel lining polytetrafluoroethylene sampling ring and manufacture technology thereof |
| CN203297819U (en) * | 2013-04-25 | 2013-11-20 | 绍兴市水联管业有限公司 | Stainless steel-lined T-branch pipe fitting |
| CN106273575A (en) * | 2016-08-19 | 2017-01-04 | 武汉晓宏超高分子新材料股份有限公司 | Tee pipe fitting and manufacture method thereof |
| CN206449339U (en) * | 2017-02-07 | 2017-08-29 | 江苏顺通管业有限公司 | A kind of performance seamless threeway |
| CN206682482U (en) * | 2017-04-01 | 2017-11-28 | 湖南精城特种陶瓷有限公司 | A kind of ultralight wear-resistant ceramic concrete mixer elbow of boron carbide |
| CN109282096A (en) * | 2018-12-04 | 2019-01-29 | 湖南托普斯新材料有限公司 | A kind of connecting flange, preparation method and conveyance conduit |
| CN210372355U (en) * | 2019-07-12 | 2020-04-21 | 潍坊宏图环保设备有限公司 | Ceramic lining wear-resistant pipe with special structure |
| CN210830955U (en) * | 2019-11-22 | 2020-06-23 | 山东兰海新材料科技有限公司 | Compound multi-way pipe |
| CN211875388U (en) * | 2020-04-01 | 2020-11-06 | 湖南精城特种陶瓷有限公司 | Ceramic three-way pipe |
-
2020
- 2020-09-23 CN CN202011009060.1A patent/CN112212097A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130019447A1 (en) * | 2011-07-21 | 2013-01-24 | Google Inc. | Tube connector with slip rings |
| CN103234089A (en) * | 2013-04-10 | 2013-08-07 | 浙江菲达通球环保管业有限公司 | Steel lining polytetrafluoroethylene sampling ring and manufacture technology thereof |
| CN203297819U (en) * | 2013-04-25 | 2013-11-20 | 绍兴市水联管业有限公司 | Stainless steel-lined T-branch pipe fitting |
| CN106273575A (en) * | 2016-08-19 | 2017-01-04 | 武汉晓宏超高分子新材料股份有限公司 | Tee pipe fitting and manufacture method thereof |
| CN206449339U (en) * | 2017-02-07 | 2017-08-29 | 江苏顺通管业有限公司 | A kind of performance seamless threeway |
| CN206682482U (en) * | 2017-04-01 | 2017-11-28 | 湖南精城特种陶瓷有限公司 | A kind of ultralight wear-resistant ceramic concrete mixer elbow of boron carbide |
| CN109282096A (en) * | 2018-12-04 | 2019-01-29 | 湖南托普斯新材料有限公司 | A kind of connecting flange, preparation method and conveyance conduit |
| CN210372355U (en) * | 2019-07-12 | 2020-04-21 | 潍坊宏图环保设备有限公司 | Ceramic lining wear-resistant pipe with special structure |
| CN210830955U (en) * | 2019-11-22 | 2020-06-23 | 山东兰海新材料科技有限公司 | Compound multi-way pipe |
| CN211875388U (en) * | 2020-04-01 | 2020-11-06 | 湖南精城特种陶瓷有限公司 | Ceramic three-way pipe |
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Application publication date: 20210112 |