CN101333632A - Stainless steel winding wire for sodium-cooled fast reactor core assembly and preparation method thereof - Google Patents
Stainless steel winding wire for sodium-cooled fast reactor core assembly and preparation method thereof Download PDFInfo
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- CN101333632A CN101333632A CNA2008101352411A CN200810135241A CN101333632A CN 101333632 A CN101333632 A CN 101333632A CN A2008101352411 A CNA2008101352411 A CN A2008101352411A CN 200810135241 A CN200810135241 A CN 200810135241A CN 101333632 A CN101333632 A CN 101333632A
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- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 21
- 239000010935 stainless steel Substances 0.000 title claims abstract description 20
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 238000004804 winding Methods 0.000 title abstract 4
- 238000000137 annealing Methods 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000003723 Smelting Methods 0.000 claims abstract description 9
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 5
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 4
- 239000001257 hydrogen Substances 0.000 claims abstract description 4
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 4
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 4
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 4
- 238000002844 melting Methods 0.000 claims description 9
- 230000008018 melting Effects 0.000 claims description 9
- 230000006698 induction Effects 0.000 claims description 4
- 229960001866 silicon dioxide Drugs 0.000 claims description 4
- VVTSZOCINPYFDP-UHFFFAOYSA-N [O].[Ar] Chemical compound [O].[Ar] VVTSZOCINPYFDP-UHFFFAOYSA-N 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 230000009977 dual effect Effects 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims description 3
- 229910052698 phosphorus Inorganic materials 0.000 claims description 3
- 238000005482 strain hardening Methods 0.000 claims description 3
- 229910052717 sulfur Inorganic materials 0.000 claims description 3
- 241001417490 Sillaginidae Species 0.000 claims description 2
- 241001062472 Stokellia anisodon Species 0.000 claims description 2
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 2
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 claims description 2
- 238000010313 vacuum arc remelting Methods 0.000 claims description 2
- 229910021421 monocrystalline silicon Inorganic materials 0.000 abstract 1
- 239000000463 material Substances 0.000 description 8
- 239000004615 ingredient Substances 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 229910000639 Spring steel Inorganic materials 0.000 description 2
- 229910001566 austenite Inorganic materials 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 229910000734 martensite Inorganic materials 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 206010039509 Scab Diseases 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000004881 precipitation hardening Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Landscapes
- Treatment Of Steel In Its Molten State (AREA)
Abstract
The invention discloses a stainless steel winding wire of a sodium-cooled fast reactor core assembly and a preparation method thereof. The stainless steel winding wire comprises 0.04-0.08 wt% of C; less than or equal to 0.75 percent of Si; p is less than or equal to 0.02 percent; s is less than or equal to 0.02 percent; 1.5 to 2.0 percent of Mn; 11.0% -14.0% of Ni; 16.0 to 18.0 percent of Cr; 2.0 to 3.0 percent of Mo; 0.3 to 0.5 percent of Ti; less than or equal to 0.1 percent of Co; less than or equal to 0.002 percent of B; n is less than or equal to 0.035%; the balance being Fe. Double smelting is adopted for smelting; hydrogen protection or vacuum bright annealing treatment is adopted for annealing; a monocrystalline silicon dioxide mould with extremely high precision is adopted in the drawing process; the cold processing degree of the final delivery state is 17-20%. The wire winding prepared by the scheme meets the requirements of the sodium-cooled fast reactor core assembly.
Description
Technical field
The invention belongs to the alloy technology field, be specifically related to stainless steel wrap wire of a kind of sodium cooled fast reactor core assembly and preparation method thereof.
Background technology
The stainless steel wrap wire that is used for the radial location of sodium-cooled fast reactor element rod, work in 350 ℃～550 ℃ the high-temperature sodium media environment, and fast neutron irradiated dosage is very high, its material and final condition of delivery must be consistent with element rod involucrum pipe, to guarantee cluster structural integrity and radial location under the reactor operation state.The chemical ingredients of this material, tolerance of dimension and surface quality require extremely strict.Though the advanced country of development abroad fast reactor technology produces to some extent, does not disclose concrete preparation method.
At present, stainless steel spring preparation technology similarly.Generally the stainless steel spring steel wire of Shi Yonging is divided into following three classes: phase transformation strengthening Ma Shi stainless steel spring steel wire, working hardening austenite one Martensite Stainless Steel spring wire, precipitation hardening austenite one Martensite Stainless Steel spring wire.These stainless steel steel wires all can not satisfy the needs of fast reactor element rod radial location.
Summary of the invention
(1) goal of the invention
The present invention be directed to existing Stainless Steel Wire and can not satisfy the needs of fast reactor element rod radial location wrapping wire, a kind of new stainless steel wrap wire and preparation method thereof is provided.
(2) technical scheme
For achieving the above object, the invention provides following technical scheme.
A kind of component of stainless steel wrap wire and weight proportion are: 0.04%～0.08% C; ≤ 0.75% Si; ≤ 0.02% P; ≤ 0.02% S; 1.5%～2.0% Mn; 11.0%～14.0% Ni; 16.0%～18.0% Cr; 2.0%～3.0% Mo; 0.3%～0.5% Ti; ≤ 0.1% Co; ≤ 0.002% B; ≤ 0.035% N; All the other are Fe.
Its preparation method comprises the steps: that (1) smelts; (2) hot-work; (3) cold-drawn; (4) annealing; (5) surface cleaning; (6) packing etc.Key is that described step (1) is smelted and adopted dual smelting, is vacuum induction melting or the melting of argon oxygen stove for the first time, is consumable electrode vacuum arc remelting or esr for the second time; Annealing after described step (2) hot-work adopts hydrogen shield or vacuum clean annealing to handle; Adopt the high monocrystalline silicon-dioxide mould of precision in described step (3) process of tube plug drawing mill.
The resulting product of this technical scheme is determined following characteristic.
1. chemical ingredients
In order to satisfy the high chemical ingredients requirement of material, in melting, adopt secondary smelting, i.e. vacuum induction melting and subsequent esr, chemical ingredients meets the regulation of table 1.
Table 1 chemical ingredients
| Element | C | Si | P | S | Mn | Ni | Cr | Mo | Ti | Co | B | N | Fe |
| Content (wt.%) | 0.04～ 0.08 | ≤0.75 | ≤0.02 | ≤0.02 | 1.5～ 2.0 | 11.0～ 14.0 | 16.0～ 18.0 | 2.0～ 3.0 | 0.3～ 0.5 | ≤0.1 | ≤0.002 | ≤0.035 | All the other |
2. tolerance
Tolerance: ± 0.005 (mm)
3. mechanical property
The mechanical property of product sees Table 2.
Table 2 mechanical property
4. metallurgy characteristic
Grain fineness number: the grain fineness number before the final cold deformation after solution treatment should be narrower than 6 grades.
" α " phase constitution: after solution treatment, do not have ferritic phase.
Carbonaceous deposits: after solution treatment, observe carbides-free on the crystal boundary at high power (500 *) microscopically.
" σ " phase fragility tissue: observe at high power (500 *) microscopically, do not allow " σ " and exist mutually.
Non-metallic inclusion: the content rating of non-metallic inclusion sees Table 3.
The content rating of table 3 non-metallic inclusion
| Type | A | B | C | D | TiN |
| Rank (disperseing/concentrate) | 0.5/0 | 0/0 | 0/0 | 0.5/0.5 | 2/2 |
5. corrosion resistance
Sample after last one solution treatment, carries out Huey test by the GB4334.5-1985 requirement before cold deformation, the result should not have the intergranular corrosion tendency.
6. surface quality and defective control
Defectives such as surfaceness is Ra≤1.6 μ m, and the surface do not allow crackle, hairline, folding, oxide skin, drawing crack, concave surface, scuffing, scratch, scab.
(3) beneficial effect
Technical scheme provided by the present invention uses pure metal to prepare burden, and does not allow to use steel scrap to be raw material, and the high chemical ingredients requirement of material is satisfied in dual melting.In cold worked each stage, adopt clean annealing, guarantee the dissolving of carbide, and reach good silk material surface quality, especially adopt the high monocrystalline silicon-dioxide mould of precision in the silk material pulling process, guaranteed the tolerance of dimension of product.
Embodiment
Below in conjunction with embodiment technical scheme of the present invention is further elaborated.
Embodiment 1
Use technical scheme provided by the present invention to prepare the excellent φ 0.6mm wrapping wire of locating usefulness of element in the sodium-cooled fast reactor Stainless Steel Reflector of Core assembly, weight 2kg.
Concrete preparation process is as follows:
(1) according to following component and weight proportion, and utilizes vacuum induction melting furnace and cold-mo(u)ld furnace to carry out molten steel respectively and smelt: 0.04%～0.08% C; ≤ 0.75% Si; ≤ 0.02% P; ≤ 0.02% S; 1.5%～2.0% Mn; 11.0%～14.0% Ni; 16.0%～18.0% Cr; 2.0%～3.0% Mo; 0.3%～0.5% Ti; ≤ 0.1% Co; ≤ 0.002% B; ≤ 0.035% N; All the other are Fe.In the smelting process, use pure metal to prepare burden, and forbid adding rare earth element.Connect the bundle machine with excellent wire rod after smelting and carry out cogging, make Stainless Steel Disc unit blank.
(2) hot-work.In cold worked each stage, the heat treating regime of selection will guarantee the dissolving of carbide, reaches good silk material surface quality and tolerance of dimension, adopts hydrogen shield or vacuum clean annealing to handle.
(3) cold-drawn.Adopt the high monocrystalline silicon-dioxide mould of precision in the silk material pulling process.The cold working degree of final condition of delivery is 17～20%.
(4) annealing.
(5) surface cleaning.
(6) packing etc.
The diameter of prepared product is φ 0.6mm, and tolerance is ± 0.005mm.The cold working degree of final condition of delivery is 17～20%.
Embodiment 2
Proportioning is with embodiment 1.Its difference is that when smelting, the melting of argon oxygen stove is an esr for the second time for the first time.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (4)
1. the component of a stainless steel wrap wire and weight proportion are: 0.04%～0.08% C; ≤ 0.75% Si; ≤ 0.02% P; ≤ 0.02% S; 1.5%～2.0% Mn; 11.0%～14.0% Ni; 16.0%～18.0% Cr; 2.0%～3.0% Mo; 0.3%～0.5% Ti; ≤ 0.1% Co; ≤ 0.002% B; ≤ 0.035% N; All the other are Fe.
2. the described stainless steel wrap wire method of preparation claim 1 comprises the steps: that (1) smelts; (2) hot-work; (3) cold-drawn; (4) annealing; (5) surface cleaning; (6) packing etc., it is characterized in that: described step (1) smelt to adopt dual smelting, be vacuum induction melting or the melting of argon oxygen stove for the first time, and be consumable electrode vacuum arc remelting or esr the second time; Annealing after described step (2) hot-work adopts hydrogen shield or vacuum clean annealing to handle; Adopt the high monocrystalline silicon-dioxide mould of precision in described step (3) process of tube plug drawing mill.
3. preparation stainless steel wrap wire method according to claim 2 is characterized in that: forbid adding rare earth element in smelting process.
4. preparation stainless steel wrap wire method according to claim 2 is characterized in that: the cold working degree of final condition of delivery is 17～20%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101352411A CN101333632A (en) | 2008-08-06 | 2008-08-06 | Stainless steel winding wire for sodium-cooled fast reactor core assembly and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101352411A CN101333632A (en) | 2008-08-06 | 2008-08-06 | Stainless steel winding wire for sodium-cooled fast reactor core assembly and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101333632A true CN101333632A (en) | 2008-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101352411A Pending CN101333632A (en) | 2008-08-06 | 2008-08-06 | Stainless steel winding wire for sodium-cooled fast reactor core assembly and preparation method thereof |
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| Country | Link |
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| CN (1) | CN101333632A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101807442A (en) * | 2010-03-12 | 2010-08-18 | 中国原子能科学研究院 | Loader for new fuel assembly of sodium-cooled fast reactor |
| CN105063462A (en) * | 2015-07-27 | 2015-11-18 | 浙江腾龙精线有限公司 | Preparation method of polishing stick |
| CN111876690A (en) * | 2020-08-06 | 2020-11-03 | 江苏银环精密钢管有限公司 | Alloy movable guide pipe for sodium-cooled fast reactor control rod driving mechanism and manufacturing method |
| CN112795847A (en) * | 2021-01-14 | 2021-05-14 | 江苏武进不锈股份有限公司 | Stainless steel seamless tube for sodium-cooled fast reactor and preparation method thereof |
-
2008
- 2008-08-06 CN CNA2008101352411A patent/CN101333632A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101807442A (en) * | 2010-03-12 | 2010-08-18 | 中国原子能科学研究院 | Loader for new fuel assembly of sodium-cooled fast reactor |
| CN105063462A (en) * | 2015-07-27 | 2015-11-18 | 浙江腾龙精线有限公司 | Preparation method of polishing stick |
| CN111876690A (en) * | 2020-08-06 | 2020-11-03 | 江苏银环精密钢管有限公司 | Alloy movable guide pipe for sodium-cooled fast reactor control rod driving mechanism and manufacturing method |
| CN111876690B (en) * | 2020-08-06 | 2021-10-29 | 江苏银环精密钢管有限公司 | Alloy movable guide pipe for sodium-cooled fast reactor control rod driving mechanism and manufacturing method |
| CN112795847A (en) * | 2021-01-14 | 2021-05-14 | 江苏武进不锈股份有限公司 | Stainless steel seamless tube for sodium-cooled fast reactor and preparation method thereof |
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Open date: 20081231 |