CN204677968U - A kind of concrete conveyance composite-curve - Google Patents
A kind of concrete conveyance composite-curve Download PDFInfo
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- CN204677968U CN204677968U CN201520393373.XU CN201520393373U CN204677968U CN 204677968 U CN204677968 U CN 204677968U CN 201520393373 U CN201520393373 U CN 201520393373U CN 204677968 U CN204677968 U CN 204677968U
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- bend pipe
- wear
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- curve
- coating
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Abstract
The utility model relates to a kind of concrete conveyance composite-curve, and it comprises bend pipe body, and described bend pipe inboard wall of tube body is coated with the wear-resisting sprayfused coating of one deck, is welded with the supported flange with this body concentric fit at the two ends of bend pipe body respectively; Supported flange inner ring described in each is coated with wear-resisting sprayfused coating described in one deck.The utility model eliminates members from structural design, saves manufacturing procedure; And adopting thermal spraying Fe-based amorphous--nanocrystalline composite coating, the combination force of coating and matrix is good, and affinity is strong, and coated substrate hardness is high, and its amorphous phase has again good corrosion resisting property.Because nanocrystalline matrix hardness can reach HV1300 ~ 1500, therefore, its wear-resisting property can exceed rich chromium cast iron high-abrasive material.
Description
Technical field
The utility model relates to concrete conveyance bend pipe.
Background technique
What the pump truck concrete conveying elbow pipe of present exploitation was commonly used has the individual layer bend pipe utilizing high manganese steel to develop and the double-deck bend pipe utilizing rich chromium cast iron to develop, utilizing rich chromium cast iron to develop double-deck bend pipe mainly contains two-layer, internal layer uses the good rich chromium cast iron manufacture of wear-resisting property, and the outer general steel making of the good Q345B of mechanical property that uses, two ends use flange welding outer tube to be linked to be entirety, and be embedded with rich chromium cast iron wear-resistant sleeve in flange inside, cause whole winding pipe assembly more, manufacturing procedure is more and complicated.In addition, because the impact of actual conditions is different, pipe in it is once concentrated wear causes after perforation waits, and whole pipe fitting just can only scrap process, and other position often still stands intact sometimes.
The individual layer bend pipe used on the market is at present the individual layer bend pipe that manufactures of high manganese steel mainly, and the overall casting technique that adopts is produced, but the individual layer bend pipe of high manganese steel is short for working life, usually about 5000 ~ 10000 sides; And the double-deck bend pipe used mainly adopts rich chromium cast iron to do the double-deck bend pipe of interior pipe, outer tube is that the general steel of Q345B is done, and also have supported flange, wear-resistant sleeve and packed layer etc., its working life is longer, can reach delivering concrete side amount 20000 ~ 30000 sides, structure is comparatively complicated.
Visible existing bend pipe has following shortcoming:
(1) two-layer compound winding pipe assembly is many, and operation is long, causes manufacturing efficiency low, time-consuming; Wherein, pipe and wear-resistant sleeve are foundry goods, need could be produced by casting.
(2) although have stuffing between inner and outer tubes, due to difficulty during applying stuffing, filling effect is unsatisfactory, therefore, always have some gaps between inside and outside tube wall, and interior pipe is brittle material as wearing layer, easily causes local early failue because of External Force Acting.
Model utility content
For the problems referred to above, the utility model provides that a kind of structure is comparatively simple, manufacturing procedure is less and is convenient to the concrete conveyance composite-curve repaired.
The utility model solves the problems of the technologies described above adopted technological scheme: a kind of concrete conveyance composite-curve, comprise bend pipe body, described bend pipe inboard wall of tube body is coated with the wear-resisting sprayfused coating of one deck, is welded with the supported flange with this body concentric fit at the two ends of bend pipe body respectively.
As preferably, supported flange inner ring described in each is coated with wear-resisting sprayfused coating described in one deck.
As preferably, described wear-resisting sprayfused coating is Fe-based amorphous--nanocrystalline wear-and corrosion-resistant coating.
As preferably, described wear-resisting sprayfused coating is 2mm.
As preferably, described bend pipe body adopts Q345B seamless steel pipe.
As preferably, described bend pipe body external frame is the arc-shaped of 90 °.
As preferably, described bend pipe internal diameter of tube body is Φ 100mm--Φ 128mm, external diameter is Φ 148mm, and tube length is 275mm--600mm.
Compared with prior art, the utility model has following beneficial effect:
(1) eliminate members from structural design, save manufacturing procedure;
(2) adopting thermal spraying Fe-based amorphous--nanocrystalline composite coating, the combination force of coating and matrix is good, and affinity is strong, and coated substrate hardness is high, and its amorphous phase has again good corrosion resisting property.Because nanocrystalline matrix hardness can reach HV1300 ~ 1500, therefore, its wear-resisting property can exceed rich chromium cast iron high-abrasive material;
(3) this composite coating may wear to a certain degree, and can again spray new wear resistant coating, coating has recoverability, bend pipe is reused, saves resource.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is A-A cross-sectional schematic in Fig. 1.
Embodiment
Describe the utility model in detail below in conjunction with Fig. 1, Fig. 2, be used for explaining the utility model in this illustrative examples of the present utility model and explanation, but not as to restriction of the present utility model.
As Fig. 1, concrete conveyance composite-curve of the present utility model comprises bend pipe body 1, and described bend pipe inboard wall of tube body is coated with the wear-resisting sprayfused coating 2 of one deck, is welded with the supported flange 3 with this body concentric fit at the two ends of bend pipe body respectively.Wherein adopt Q345B to make bend pipe body, adopt 20# steel as concentric supported flange, both due to carbon equivalent low, welding performance is better, is welded to connect relatively firm.The wear resistant inner layer wear-and corrosion-resistant thermal spraying composite coating of former double-deck bend pipe replaces by the utility model, eliminates packed layer, outer tube is combined with wearing layer tightr; Eliminate assembly and the operations such as assembling procedure and filling step such as interior pipe, wear-resistant sleeve, reduce cost to a certain extent.
In the utility model, supported flange inner ring described in each is also coated with wear-resisting sprayfused coating described in one deck, makes body and flange inner wall form overall composite coating, improves corrosion resisting property further; Described wear-resisting sprayfused coating is Fe-based amorphous--nanocrystalline wear-and corrosion-resistant coating, containing amorphous phase and nanometer crystalline phase in composite coating, the wherein anti-corrosion effect that had of amorphous phase, and matrix-nanometer crystalline phase hardness Gao Keda HV1300 ~ 1500, there is good wear-resisting property, described wear-resisting sprayfused coating is about 2mm, for use as the wearing layer of elbow internal wall.Meanwhile, by adjusting the chemical composition of coating, the percentage composition of amorphous phase and nanometer crystalline phase can be regulated, thus free adjusting composite coating, it can be made more to adapt to the needs of actual conditions.
In implementation process, described bend pipe body external frame is the arc-shaped of 90 °.Bend pipe internal diameter of tube body is Φ 100mm--Φ 128mm, and external diameter is Φ 148mm, and tube length is 275mm--600mm, and this bend pipe with thermal spraying composite coating new structure is applied to concrete conveyance pipeline on pump truck; And this composite coating has high-wear resistance and high corrosion resistance simultaneously.
Be described in detail the technological scheme that the utility model embodiment provides above, the explanation of above embodiment is only applicable to the principle helping to understand the utility model embodiment; Meanwhile, for one of ordinary skill in the art, according to the utility model embodiment, embodiment and application area all will change, and in sum, this description should not be construed as restriction of the present utility model.
Claims (7)
1. a concrete conveyance composite-curve, comprises bend pipe body, it is characterized in that: described bend pipe inboard wall of tube body is coated with the wear-resisting sprayfused coating of one deck, is welded with the supported flange with this body concentric fit at the two ends of bend pipe body respectively.
2. concrete conveyance composite-curve as claimed in claim 1, is characterized in that: supported flange inner ring described in each is coated with wear-resisting sprayfused coating described in one deck.
3. concrete conveyance composite-curve as claimed in claim 1 or 2, is characterized in that: described wear-resisting sprayfused coating is Fe-based amorphous--nanocrystalline wear-and corrosion-resistant coating.
4. concrete conveyance composite-curve as claimed in claim 3, is characterized in that: described wear-resisting sprayfused coating is 2mm.
5. concrete conveyance composite-curve as claimed in claim 1, is characterized in that: described bend pipe body adopts Q345B seamless steel pipe.
6. concrete conveyance composite-curve as claimed in claim 1, is characterized in that: described bend pipe body external frame is the arc-shaped of 90 °.
7. concrete conveyance composite-curve as claimed in claim 6, is characterized in that: described bend pipe internal diameter of tube body is Φ 100mm--Φ 128mm, external diameter is Φ 148mm, and tube length is 275mm--600mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520393373.XU CN204677968U (en) | 2015-06-09 | 2015-06-09 | A kind of concrete conveyance composite-curve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520393373.XU CN204677968U (en) | 2015-06-09 | 2015-06-09 | A kind of concrete conveyance composite-curve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204677968U true CN204677968U (en) | 2015-09-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520393373.XU Expired - Fee Related CN204677968U (en) | 2015-06-09 | 2015-06-09 | A kind of concrete conveyance composite-curve |
Country Status (1)
| Country | Link |
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| CN (1) | CN204677968U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111765326A (en) * | 2020-06-23 | 2020-10-13 | 三一汽车制造有限公司 | Pipeline, preparation method of pipeline and concrete machine |
| CN113483163A (en) * | 2021-06-22 | 2021-10-08 | 合肥慧源铝业有限公司 | Centrifugal casting composite pump pipe and processing technology thereof |
-
2015
- 2015-06-09 CN CN201520393373.XU patent/CN204677968U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111765326A (en) * | 2020-06-23 | 2020-10-13 | 三一汽车制造有限公司 | Pipeline, preparation method of pipeline and concrete machine |
| CN111765326B (en) * | 2020-06-23 | 2022-05-17 | 三一汽车制造有限公司 | Pipeline, preparation method of pipeline and concrete machine |
| CN113483163A (en) * | 2021-06-22 | 2021-10-08 | 合肥慧源铝业有限公司 | Centrifugal casting composite pump pipe and processing technology thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150930 Termination date: 20160609 |