CN104118165A - Seamless steel tube for oil delivery - Google Patents
Seamless steel tube for oil delivery Download PDFInfo
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- CN104118165A CN104118165A CN201410398015.8A CN201410398015A CN104118165A CN 104118165 A CN104118165 A CN 104118165A CN 201410398015 A CN201410398015 A CN 201410398015A CN 104118165 A CN104118165 A CN 104118165A
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- alloy layer
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- resisting alloy
- coating
- steel pipe
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Abstract
The invention discloses a seamless steel tube for oil delivery. The seamless steel tube comprises a steel tube matrix, nickel-titanium alloy coating, niobium metal coating, molybdenum metal coating, a first heat-resisting alloy layer and a second heat-resisting alloy layer, wherein the nickel-titanium alloy coating is plated on the inner surface of the steel tube matrix, the first heat-resisting alloy layer is arranged on the inner surface of the nickel-titanium alloy coating, the niobium metal coating and the molybdenum metal coating are orderly plated on the outer surface of the steel tube matrix, and the second heat-resisting alloy layer is arranged on the outer surface of the molybdenum metal coating. According to the mode, the seamless steel tube disclosed by the invention is good in high temperature resistance, high in mechanical strength, excellent in abrasion resistance, and long in service life.
Description
Technical field
The present invention relates to steel pipe field, particularly relate to a kind of oil transportation seamless steel pipe.
Background technology
The use of seamless steel pipe usually also can relate to many industries the inside, comprise that petroleum pipeline aspect also substantially all adopts seamless steel pipe, seamless steel pipe belongs to metal product series, also must there is certain service condition and scope in its use, the scope of application of the seamless steel pipe material that petroleum pipeline is used in temperature is also the instructions for use that has specification.
Conventionally claim that the steel of the weak erosive dielectric corrosions such as resistance to atmosphere, steam and water is stainless steel, claim that the steel of the chemical corrosion dielectric corrosions such as acid and alkali resistance, salt is acid resisting steel, the general name of stainless steel and acid resisting steel is stainless acid resistant steel, referred to as stainless steel, chromium is main alloy element, often adds in addition nickel, titanium, niobium, molybdenum etc.The material of stainless steel tube mainly contains austenitic stainless steel, ferritic stainless steel, martensitic stain less steel, two phase stainless steel and PH stainless steel, and stainless steel tube is widely used in the fields such as oil, chemical industry, papermaking, chemical fertilizer, automobile, aircraft, power station, decoration.
But the oil transportation using is now poor by seamless steel pipe resistance to elevated temperatures, mechanical strength is low, and abrasion resistance properties is poor, and service life is short.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of oil transportation seamless steel pipe, and resistance to elevated temperatures is good, and mechanical strength is high, and abrasion resistance properties is good, long service life.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: a kind of oil transportation seamless steel pipe is provided, comprise: steel pipe matrix, Nitinol coating, niobium metal coating, molybdenum coating, the first heat-resisting alloy layer and the second heat-resisting alloy layer, the inner surface of described steel pipe matrix is coated with described Nitinol coating, the inner surface of described Nitinol coating is provided with the first described heat-resisting alloy layer, the outer surface of described steel pipe matrix is coated with described niobium metal coating and described molybdenum coating successively, the outer surface of described molybdenum coating is provided with the second described heat-resisting alloy layer.
In a preferred embodiment of the present invention, the first described heat-resisting alloy layer is niobium tungsten heat-resisting alloy layer.
In a preferred embodiment of the present invention, the second described heat-resisting alloy layer is molybdenum tungsten heat-resisting alloy layer.
In a preferred embodiment of the present invention, the thickness of the first described heat-resisting alloy layer is more than or equal to the thickness of the second heat-resisting alloy layer.
The invention has the beneficial effects as follows: resistance to elevated temperatures of the present invention is good, and mechanical strength is high, and abrasion resistance properties is good, long service life.
Detailed description of the invention
To the technical scheme in the embodiment of the present invention be clearly and completely described below, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making all other embodiment that obtain under creative work prerequisite, belong to the scope of protection of the invention.
The embodiment of the present invention comprises:
A kind of oil transportation seamless steel pipe, comprise: steel pipe matrix, Nitinol coating, niobium metal coating, molybdenum coating, the first heat-resisting alloy layer and the second heat-resisting alloy layer, the inner surface of described steel pipe matrix is coated with described Nitinol coating, the inner surface of described Nitinol coating is provided with the first described heat-resisting alloy layer, the outer surface of described steel pipe matrix is coated with described niobium metal coating and described molybdenum coating successively, and the outer surface of described molybdenum coating is provided with the second described heat-resisting alloy layer.
Preferably, the first described heat-resisting alloy layer is niobium tungsten heat-resisting alloy layer.
Preferably, the second described heat-resisting alloy layer is molybdenum tungsten heat-resisting alloy layer.
Preferably, the thickness of the first described heat-resisting alloy layer is more than or equal to the thickness of the second heat-resisting alloy layer.
Oil transportation of the present invention with the beneficial effect of seamless steel pipe is: resistance to elevated temperatures of the present invention is good, and mechanical strength is high, and abrasion resistance properties is good, long service life.
The foregoing is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes description of the present invention to do; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present invention.
Claims (4)
1. an oil transportation seamless steel pipe, it is characterized in that, comprise: steel pipe matrix, Nitinol coating, niobium metal coating, molybdenum coating, the first heat-resisting alloy layer and the second heat-resisting alloy layer, the inner surface of described steel pipe matrix is coated with described Nitinol coating, the inner surface of described Nitinol coating is provided with the first described heat-resisting alloy layer, the outer surface of described steel pipe matrix is coated with described niobium metal coating and described molybdenum coating successively, and the outer surface of described molybdenum coating is provided with the second described heat-resisting alloy layer.
2. oil transportation seamless steel pipe according to claim 1, is characterized in that, the first described heat-resisting alloy layer is niobium tungsten heat-resisting alloy layer.
3. oil transportation seamless steel pipe according to claim 1, is characterized in that, the second described heat-resisting alloy layer is molybdenum tungsten heat-resisting alloy layer.
4. oil transportation seamless steel pipe according to claim 1, is characterized in that, the thickness of the first described heat-resisting alloy layer is more than or equal to the thickness of the second heat-resisting alloy layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410398015.8A CN104118165A (en) | 2014-08-14 | 2014-08-14 | Seamless steel tube for oil delivery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410398015.8A CN104118165A (en) | 2014-08-14 | 2014-08-14 | Seamless steel tube for oil delivery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104118165A true CN104118165A (en) | 2014-10-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410398015.8A Pending CN104118165A (en) | 2014-08-14 | 2014-08-14 | Seamless steel tube for oil delivery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104118165A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104534184A (en) * | 2014-12-01 | 2015-04-22 | 常熟市东涛金属复合材料有限公司 | Metal composite tube with low thermal expansion rate |
-
2014
- 2014-08-14 CN CN201410398015.8A patent/CN104118165A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104534184A (en) * | 2014-12-01 | 2015-04-22 | 常熟市东涛金属复合材料有限公司 | Metal composite tube with low thermal expansion rate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141029 |