CN201680072U - Abrasion-resistant heat-resistant and corrosion-resistant composite pipeline - Google Patents
Abrasion-resistant heat-resistant and corrosion-resistant composite pipeline Download PDFInfo
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- CN201680072U CN201680072U CN201020130041XU CN201020130041U CN201680072U CN 201680072 U CN201680072 U CN 201680072U CN 201020130041X U CN201020130041X U CN 201020130041XU CN 201020130041 U CN201020130041 U CN 201020130041U CN 201680072 U CN201680072 U CN 201680072U
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Abstract
The utility model discloses an abrasion-resistant heat-resistant and corrosion-resistant composite pipeline, which belongs to material conveying pipelines and comprises a carbon steel pipeline. High-chromium iron alloy and porous SiC ceramics are arranged on the inner wall of the carbon steel pipeline and composited on the inner surface of the carbon steel pipeline by the aid of vacuum negative-pressure cast-penetrating technique, so that an abrasion-resistant heat-resistant and corrosion-resistant composite inner pipe is obtained. The abrasion-resistant heat-resistant and corrosion-resistant composite pipeline has the advantages of even distribution of the porous SiC ceramics, controllable volume fraction, no material cracking or stripping since composition of a composite layer and the carbon steel pipeline 1 is metallurgical combination, reduced weight of the composite pipeline, and abrasion resistance about three times of that of metal base body high-chromium cast iron alloy with the same thickness.
Description
Technical field
The utility model relates to a kind of material conveying pipe, specifically is a kind of wear-resisting heat-resisting corrosion-resisting compound pipe.
Background technique
Solid Gu metallurgy, coal, chemical industry, water conservancy, environmental protection, petrochemical industry, mine,, industrial field such as electric power and geothermal energy resources exist liquid/, gas/mass transport operating mode such as ore, coal slurry, silt particle, limestone, solid waste, traditional material conveying pipe has composite bimetal pipe, ceramic-lined pipe and glass-ceramic tubre.Wherein, there are defectives such as thickness is thick, volume is big, cast stone is easily cracked in glass-ceramic tubre, and along with the extensive application of composite bimetal pipe and ceramic-lined pipe, glass-ceramic tubre is eliminated gradually.Composite bimetal pipe is main at present to adopt carbon steel/high chromium alloy material, because Heavy Weight also is eliminated gradually.Ceramic-lined pipe mainly divides two kinds of the ceramic-lined pipe of self-propagating combustion and ceramic pasters, the former internal lining pipe ceramics forming thin thickness, tissue looseness, hole ratio height; Latter's lined ceramics paster easily produces the collapse formula and peels off, thereby causes problems such as pipeline is worn out, and particularly for small-bore pipeline, ceramic paster method technology can't realize.
Summary of the invention
In order to overcome the shortcoming of above-mentioned existing composite pipe, the utility model provides a kind of wear-resisting heat-resisting corrosion-resisting compound pipe, and it is controlled to have a composite thickness, advantage such as fabricating cost is low, and is wear-resisting, heat-resisting, corrosion-resistant.
The technical solution adopted in the utility model is: a kind of wear-resisting heat-resisting corrosion-resisting compound pipe, comprise carbon steel piping, and it is characterized in that on the inwall of carbon steel piping, being compounded with the porous SiC earthenware duct of wear-resisting heat-resisting corrosion-resisting.
Owing to adopted technique scheme, the beneficial effects of the utility model are: (1) porous SiC pottery has superior functions such as wear-resisting, heat-resisting, corrosion-resistant; (2) the casting high-chromium alloy has performances such as wear-resisting preferably, heat-resisting, corrosion-resistant; (3) be compound in that porous SiC pottery in the high-chromium alloy is evenly distributed, volume fraction is controlled; (4) because composite bed is at high temperature to make, thus composite bed itself and and the compound metallurgy combination that is of carbon steel piping 1, can not produce the cracked of material or peel off; (5) because the porous SiC ceramic thickness is controlled, so composite bed thickness is controlled, can reduce multiple tube weight.(6) wear-resisting property (condition of equivalent thickness) of the utility model multiple tube is about 3 times of metallic matrix high-chromium cast iron alloy under the defeated coal operating mode of thermal power plant.
Description of drawings
Below in conjunction with accompanying drawing the utility model is described in further details.
Fig. 1 is the wear-resisting heat-resisting corrosion-resisting compound pipe structural representation;
Fig. 2 is a porous SiC stoneware pipe structural drawing.
Among the figure: 1, carbon steel piping, 2, the porous SiC ceramic thin film, 3, the high-chromium cast iron alloy binder course.
Embodiment
As shown in Figure 1, wear-resisting heat-resisting corrosion-resisting compound pipe comprises carbon steel piping 1, thickness 8～10mm; Thickness is that the porous SiC ceramic thin film 2 of 6～8mm firmly is compound on carbon steel piping 1 inwall by high-chromium cast iron alloy binder course 3.The thickness of high-chromium cast iron alloy binder course 3 is 2～3mm.
As shown in Figure 2, the porous SiC ceramic thin film is made the porous SiC stoneware pipe, is equally distributed porous structure.Size matches with carbon steel piping 1 internal diameter, and the porous SiC stoneware pipe passes through high-chromium cast iron alloy binder course 3 firm engagement on the carbon steel piping inwall.
Manufacture method is: earlier the porous SiC stoneware pipe is fixedly supported on carbon steel piping 1 inwall with carefully following closely, and and 1 of carbon steel piping leave gap 2～3mm.Limited by ceramic preparation method, the porous SiC pottery is made up by multistage; With high-chromium cast iron alloy the porous SiC ceramic high temperature is compound in carbon steel piping 1 internal surface by the negative pressure of vacuum technology of infiltration casting then and obtains wear-resisting heat-resisting corrosion-resisting compound pipe.
Described carbon steel piping 1 material chemical composition is shown in Table 1.
Table 1 external structure Ordinary Steel material chemical composition (wt%)
The food ingredient weight percentage (wt%) of described casting high-chromium alloy is: 2.6～3.0%C, 0.6～0.8%Si, 0.6～1.0%Mn, 0～0.03%S, 0～0.03%P, 28.0～30.0%Cr, 0.3～1.0%Mo, 0.5～1.5%Cu, 0.2～0.5%B, all the other are Fe; A kind of food ingredient weight percentage (wt%) of optimization is 2.8%C, 0.8%Mn, 0.8%Si, 0～0.03%S, 0～0.03%P, 29.0%Cr, 0.8%Mo, 1.0%Cu, 0.2%B, all the other are Fe; The another kind of food ingredient weight percentage of optimizing (wt%) is 2.9%C, 1.0%Mn, 0.6%Si, 0～0.03%S, 0～0.03%P, 28.0%Cr, 0.6%Mo, 0.8%Cu, 0.3%B, all the other are Fe.
The porous SiC ceramic hole of this multiple tube is evenly distributed, volume fraction is controlled, composite bed itself reaches the compound metallurgy combination that is with carbon steel piping 1, can not produce the cracked of material or peel off, advantages such as multiple tube weight saving, test under the defeated coal operating mode of thermal power plant, the wear-resisting property of multiple tube (condition of equivalent thickness) is about 3 times of metallic matrix high-chromium cast iron alloy.
Claims (4)
1. a wear-resisting heat-resisting corrosion-resisting compound pipe comprises carbon steel piping (1), it is characterized in that being compounded with on the inwall of carbon steel piping (1) the porous SiC ceramic thin film (2) of wear-resisting heat-resisting corrosion-resisting.
2. wear-resisting heat-resisting corrosion-resisting compound pipe according to claim 1, it is characterized in that porous SiC ceramic thin film (2) is the porous SiC stoneware pipe that matches with carbon steel piping (1) internal diameter, the porous SiC stoneware pipe passes through high-chromium cast iron alloy binder course (3) firm engagement on the carbon steel piping inwall.
3. wear-resisting heat-resisting corrosion-resisting compound pipe according to claim 2, the thickness that it is characterized in that the porous SiC stoneware pipe is 6～8mm.
4. wear-resisting heat-resisting corrosion-resisting compound pipe according to claim 2, the thickness that it is characterized in that high-chromium cast iron alloy binder course (3) is 2～3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020130041XU CN201680072U (en) | 2010-02-09 | 2010-02-09 | Abrasion-resistant heat-resistant and corrosion-resistant composite pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020130041XU CN201680072U (en) | 2010-02-09 | 2010-02-09 | Abrasion-resistant heat-resistant and corrosion-resistant composite pipeline |
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| Publication Number | Publication Date |
|---|---|
| CN201680072U true CN201680072U (en) | 2010-12-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201020130041XU Expired - Fee Related CN201680072U (en) | 2010-02-09 | 2010-02-09 | Abrasion-resistant heat-resistant and corrosion-resistant composite pipeline |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101922590A (en) * | 2010-02-09 | 2010-12-22 | 徐州胜海机械制造科技有限公司 | Wear-resisting heat-resisting corrosion-resisting compound pipe and production method thereof |
| CN104763856A (en) * | 2015-03-18 | 2015-07-08 | 苏州福润机械有限公司 | Noise-reducing easy-to-clean three-way pipe |
| CN113118614A (en) * | 2021-04-22 | 2021-07-16 | 西部金属材料股份有限公司 | Metal-ceramic composite pipe and preparation method thereof |
-
2010
- 2010-02-09 CN CN201020130041XU patent/CN201680072U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101922590A (en) * | 2010-02-09 | 2010-12-22 | 徐州胜海机械制造科技有限公司 | Wear-resisting heat-resisting corrosion-resisting compound pipe and production method thereof |
| CN104763856A (en) * | 2015-03-18 | 2015-07-08 | 苏州福润机械有限公司 | Noise-reducing easy-to-clean three-way pipe |
| CN113118614A (en) * | 2021-04-22 | 2021-07-16 | 西部金属材料股份有限公司 | Metal-ceramic composite pipe and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101222 Termination date: 20110209 |