CN104764352A - U-shaped pipe of steam generator - Google Patents
U-shaped pipe of steam generator Download PDFInfo
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- CN104764352A CN104764352A CN201510096867.6A CN201510096867A CN104764352A CN 104764352 A CN104764352 A CN 104764352A CN 201510096867 A CN201510096867 A CN 201510096867A CN 104764352 A CN104764352 A CN 104764352A
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- steam generator
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- cobalt
- chromium
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- Heat Treatment Of Articles (AREA)
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Abstract
The invention discloses a U-shaped pipe of a steam generator. The U-shaped pipe is manufactured by processing nickel, chromium, iron, manganese, carbon, cobalt, aluminum, titanium, silicon, boron and vanadium; the U-shaped pipe is manufactured from the following components in percentage by weight: 55.3 to 65.2% of nickel, 26.5 to 31.5% of chromium, 8.3 to 11.2% of iron, 0.25 to 0.45% of manganese, 0.012 to 0.025% of carbon, 0.014 to 0.016% of cobalt, 0.2 to 0.45% of aluminum, 0.025 to 0.035% of titanium, 0.03 to 0.045% of silicon, 0.001 to 0.002% of boron, and 0.015 to 0.025% of vanadium. According to the mode above, the U-shaped pipe of the steam generator is relatively high in corrosion resistance and stress resistance, small in thermal deformation, and relatively high in machining capacity.
Description
Technical field
The present invention relates to metallic article, particularly relate to a kind of U-Shaped Tube for PWR Steam Generator.
Background technology
In a vapor generator, U-shaped heat-transfer pipe carries one, secondary circuit energy exchange and ensure the important function of circuit pressure boundary integrity, and its reliability directly affects security and the economy of this steam generator.Adopt general U-tube material, generator can be replaced because U-tube is conducted heat badly damaged, and cause evaporimeter short for service life, financial cost is high.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of U-Shaped Tube for PWR Steam Generator, and have higher corrosion inhibitor resistance to stress ability, thermal deformation technique is little, has higher mechanical process capacity simultaneously.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: provide a kind of U-Shaped Tube for PWR Steam Generator, described U-tube is by nickel, chromium, iron, manganese, carbon, cobalt, aluminium, titanium, silicon, boron and vanadium are through being processed into, in described U-tube, shared by each composition, percentage by weight is respectively: nickel 55.3% ~ 65.2%, chromium 26.5% ~ 31.5%, iron 8.3% ~ 11.2%, manganese 0.25% ~ 0.45%, carbon 0.012% ~ 0.025%, cobalt 0.014% ~ 0.016%, aluminium 0.2% ~ 0.45%, titanium 0.025% ~ 0.035%, silicon 0.03% ~ 0.045%, boron 0.001% ~ 0.002%, vanadium 0.015% ~ 0.025%.
In the present invention's preferred embodiments, in described U-tube, shared by each composition, percentage by weight is respectively: nickel 61.5% ~ 64.2%, chromium 29.5% ~ 31.5%, iron 9.3% ~ 11.2%, manganese 0.35% ~ 0.45%, carbon 0.018% ~ 0.025%, cobalt 0.014% ~ 0.016%, aluminium 0.2% ~ 0.35%, titanium 0.03% ~ 0.035%, silicon 0.04% ~ 0.045%, boron 0.001% ~ 0.002%, vanadium 0.02% ~ 0.025%.
In the present invention's preferred embodiments, in described U-tube, shared by each composition, percentage by weight is respectively: nickel 63.5%, chromium 30.5%, iron 10.22%, manganese 0.38%, carbon 0.02%, cobalt 0.015%, aluminium 0.25%, titanium 0.035%, silicon 0.045%, boron 0.002%, vanadium 0.023%.
In the present invention's preferred embodiments, in described U-tube, shared by each composition, percentage by weight is respectively: nickel 62.3%, chromium 31.2%, iron 11.1%, manganese 0.45%, carbon 0.025%, cobalt 0.016%, aluminium 0.32%, titanium 0.031%, silicon 0.042%, boron 0.0015%, vanadium 0.025%
The invention has the beneficial effects as follows: a kind of U-Shaped Tube for PWR Steam Generator of the present invention, have higher corrosion inhibitor resistance to stress ability, thermal deformation technique is little, has higher mechanical process capacity simultaneously.
Detailed description of the invention
Be clearly and completely described to the technical scheme in the embodiment of the present invention below, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
The embodiment of the present invention comprises:
A kind of U-Shaped Tube for PWR Steam Generator, described U-tube is by nickel, chromium, iron, manganese, carbon, cobalt, aluminium, titanium, silicon, boron and vanadium through being processed into, and in described alloy material, shared by each composition, percentage by weight is respectively: nickel 55.3% ~ 65.2%, chromium 26.5% ~ 31.5%, iron 8.3% ~ 11.2%, manganese 0.25% ~ 0.45%, carbon 0.012% ~ 0.025%, cobalt 0.014% ~ 0.016%, aluminium 0.2% ~ 0.45%, titanium 0.025% ~ 0.035%, silicon 0.03% ~ 0.045%, boron 0.001% ~ 0.002%, vanadium 0.015% ~ 0.025%.
Further, in described U-tube, shared by each composition, percentage by weight is respectively: nickel 61.5% ~ 64.2%, chromium 29.5% ~ 31.5%, iron 9.3% ~ 11.2%, manganese 0.35% ~ 0.45%, carbon 0.018% ~ 0.025%, cobalt 0.014% ~ 0.016%, aluminium 0.2% ~ 0.35%, titanium 0.03% ~ 0.035%, silicon 0.04% ~ 0.045%, boron 0.001% ~ 0.002%, vanadium 0.02% ~ 0.025%.
Further, in described U-tube, shared by each composition, percentage by weight is respectively: nickel 63.5%, chromium 30.5%, iron 10.22%, manganese 0.38%, carbon 0.02%, cobalt 0.015%, aluminium 0.25%, titanium 0.035%, silicon 0.045%, boron 0.002%, vanadium 0.023%.
Further, shared by each composition of described U-tube, percentage by weight is respectively: nickel 62.3%, chromium 31.2%, iron 11.1%, manganese 0.45%, carbon 0.025%, cobalt 0.016%, aluminium 0.32%, titanium 0.031%, silicon 0.042%, boron 0.0015%, vanadium 0.025%
The invention has the beneficial effects as follows: a kind of U-Shaped Tube for PWR Steam Generator of the present invention, have higher corrosion inhibitor resistance to stress ability, thermal deformation technique is little, has higher mechanical process capacity simultaneously.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention to do equivalent structure or equivalent flow process conversion; 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. a U-Shaped Tube for PWR Steam Generator, it is characterized in that, described U-tube is by nickel, chromium, iron, manganese, carbon, cobalt, aluminium, titanium, silicon, boron and vanadium through being processed into, and in described U-tube, shared by each composition, percentage by weight is respectively: nickel 55.3% ~ 65.2%, chromium 26.5% ~ 31.5%, iron 8.3% ~ 11.2%, manganese 0.25% ~ 0.45%, carbon 0.012% ~ 0.025%, cobalt 0.014% ~ 0.016%, aluminium 0.2% ~ 0.45%, titanium 0.025% ~ 0.035%, silicon 0.03% ~ 0.045%, boron 0.001% ~ 0.002%, vanadium 0.015% ~ 0.025%.
2. U-Shaped Tube for PWR Steam Generator according to claim 1, it is characterized in that, in described U-tube, shared by each composition, percentage by weight is respectively: nickel 61.5% ~ 64.2%, chromium 29.5% ~ 31.5%, iron 9.3% ~ 11.2%, manganese 0.35% ~ 0.45%, carbon 0.018% ~ 0.025%, cobalt 0.014% ~ 0.016%, aluminium 0.2% ~ 0.35%, titanium 0.03% ~ 0.035%, silicon 0.04% ~ 0.045%, boron 0.001% ~ 0.002%, vanadium 0.02% ~ 0.025%.
3. U-Shaped Tube for PWR Steam Generator according to claim 1, it is characterized in that, in described U-tube, shared by each composition, percentage by weight is respectively: nickel 63.5%, chromium 30.5%, iron 10.22%, manganese 0.38%, carbon 0.02%, cobalt 0.015%, aluminium 0.25%, titanium 0.035%, silicon 0.045%, boron 0.002%, vanadium 0.023%.
4. U-Shaped Tube for PWR Steam Generator according to claim 1, it is characterized in that, in described U-tube, shared by each composition, percentage by weight is respectively: nickel 62.3%, chromium 31.2%, iron 11.1%, manganese 0.45%, carbon 0.025%, cobalt 0.016%, aluminium 0.32%, titanium 0.031%, silicon 0.042%, boron 0.0015%, vanadium 0.025%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510096867.6A CN104764352A (en) | 2015-03-05 | 2015-03-05 | U-shaped pipe of steam generator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510096867.6A CN104764352A (en) | 2015-03-05 | 2015-03-05 | U-shaped pipe of steam generator |
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| CN104764352A true CN104764352A (en) | 2015-07-08 |
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| CN201510096867.6A Pending CN104764352A (en) | 2015-03-05 | 2015-03-05 | U-shaped pipe of steam generator |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005314728A (en) * | 2004-04-27 | 2005-11-10 | Daido Steel Co Ltd | METHOD FOR PRODUCING LOW THERMAL EXPANSION Ni BASED SUPERALLOY |
| JP2006225756A (en) * | 2005-01-19 | 2006-08-31 | Daido Steel Co Ltd | Heat resistant alloy for exhaust valve enduring use at 900°c and exhaust valve using the alloy |
| CN101864531A (en) * | 2008-12-25 | 2010-10-20 | 住友金属工业株式会社 | Austenitic heat resistant alloy |
| CN103146959A (en) * | 2013-03-14 | 2013-06-12 | 宝银特种钢管有限公司 | U-shaped seamless nickel-chromium iron alloy heat transfer tube for nuclear steam generator |
| CN103882263A (en) * | 2012-12-19 | 2014-06-25 | 江苏龙鑫特殊钢实业总公司 | Nickel-based alloy for nuclear power steam generator vibration-resisting strips and application thereof |
| CN103993202A (en) * | 2014-05-20 | 2014-08-20 | 太原钢铁(集团)有限公司 | Nickel-based alloy for tubes of boiler of ultra-supercritical power station and preparation method thereof |
-
2015
- 2015-03-05 CN CN201510096867.6A patent/CN104764352A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005314728A (en) * | 2004-04-27 | 2005-11-10 | Daido Steel Co Ltd | METHOD FOR PRODUCING LOW THERMAL EXPANSION Ni BASED SUPERALLOY |
| JP2006225756A (en) * | 2005-01-19 | 2006-08-31 | Daido Steel Co Ltd | Heat resistant alloy for exhaust valve enduring use at 900°c and exhaust valve using the alloy |
| CN101864531A (en) * | 2008-12-25 | 2010-10-20 | 住友金属工业株式会社 | Austenitic heat resistant alloy |
| CN103882263A (en) * | 2012-12-19 | 2014-06-25 | 江苏龙鑫特殊钢实业总公司 | Nickel-based alloy for nuclear power steam generator vibration-resisting strips and application thereof |
| CN103146959A (en) * | 2013-03-14 | 2013-06-12 | 宝银特种钢管有限公司 | U-shaped seamless nickel-chromium iron alloy heat transfer tube for nuclear steam generator |
| CN103993202A (en) * | 2014-05-20 | 2014-08-20 | 太原钢铁(集团)有限公司 | Nickel-based alloy for tubes of boiler of ultra-supercritical power station and preparation method thereof |
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Application publication date: 20150708 |