CN102618753A - Zr-Sn-Fe-Cr intermediate alloy of zirconium alloy for nuclear reactor and preparation process - Google Patents
Zr-Sn-Fe-Cr intermediate alloy of zirconium alloy for nuclear reactor and preparation process Download PDFInfo
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- CN102618753A CN102618753A CN2012100441486A CN201210044148A CN102618753A CN 102618753 A CN102618753 A CN 102618753A CN 2012100441486 A CN2012100441486 A CN 2012100441486A CN 201210044148 A CN201210044148 A CN 201210044148A CN 102618753 A CN102618753 A CN 102618753A
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- alloy
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- nuclear reactor
- tin
- 5min
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- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 28
- 239000000956 alloy Substances 0.000 title claims abstract description 28
- 229910001093 Zr alloy Inorganic materials 0.000 title claims abstract description 17
- 229910017060 Fe Cr Inorganic materials 0.000 title claims abstract description 10
- 229910002544 Fe-Cr Inorganic materials 0.000 title claims abstract description 10
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims abstract description 28
- 238000002844 melting Methods 0.000 claims abstract description 24
- 230000008018 melting Effects 0.000 claims abstract description 24
- 229910052718 tin Inorganic materials 0.000 claims abstract description 17
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910052786 argon Inorganic materials 0.000 claims abstract description 14
- 238000003723 Smelting Methods 0.000 claims abstract description 8
- 238000005516 engineering process Methods 0.000 claims description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 11
- 239000011651 chromium Substances 0.000 claims description 6
- 239000011324 bead Substances 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 239000012535 impurity Substances 0.000 claims description 3
- 239000004615 ingredient Substances 0.000 claims description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 2
- 238000004458 analytical method Methods 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims description 2
- 238000009413 insulation Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 238000012856 packing Methods 0.000 claims description 2
- 239000002994 raw material Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 3
- 238000005266 casting Methods 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 150000002739 metals Chemical class 0.000 abstract 1
- 239000000843 powder Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910052726 zirconium Inorganic materials 0.000 description 2
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
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- Manufacture And Refinement Of Metals (AREA)
- Furnace Details (AREA)
Abstract
The invention provides a Zr-Sn-Fe-Cr intermediate alloy of a zirconium alloy for nuclear reactor and preparation process, which is added in the zirconium alloy smelting to ensure the content of each element to be stable and accurate. The preparation process of the alloy comprises dosing according to the ratio-vacuum plasma argon arc primary smelting-suspended furnace smelting-ingot casting and turning-analysis-entering warehouses. Due to the fact that the intermediate alloy is added into the smelting of the zirconium alloy, each element component is ensured to be accurate and stable. Simultaneously, vacuum plasma argon arc primary smelting is adopted, because a tin element has a low melting point, the process enables the metals to be primarily alloyed, and the volatilization of the tin element is avoided.
Description
Technical field
The invention belongs to the manufacturing of master alloy in the alloy manufacturing technology field, particularly used by nuclear reactor zirconium alloy smelting process.
Background technology
The heat exchanger zirconium alloy pipe is made special-purpose zirconium alloy in the nuclear reactor, contains multiple elements such as Zr, Sn, Fe, in zirconium alloy is smelted; Generally all be directly to add various element simple substances; But because element S n fusing point is very low, directly interpolation often causes inclined to one side tin, makes the tin element addition be difficult to control; Cause the alloy smelting qualification rate can be very low, generally have only about 30%.
Summary of the invention
The object of the invention provides a kind of Zr-Sn-Fe-Cr master alloy of a kind of used by nuclear reactor zirconium alloy, and this alloy adds in zirconium alloy is smelted can guarantee that each constituent content is accurately stable.
Be the realization above-mentioned purpose, a kind of Zr-Sn-Fe-Cr master alloy of used by nuclear reactor zirconium alloy of the present invention, its each component weight percent content is following:
The preparation technology of said alloy is: according to the first melting of proportion ingredient → vacuum plasma argon arc → shower furnace melting → ladle barrow bits → analysis → warehouse-in.
Zr uses the atomic level zirc sponge during proportioning; Sn uses " 0 " level tin, and rolls into the tin band; Fe adopts straight iron powder, Fe >=99.9%; The pure chromium powder that Cr adopts; And various raw material packet are processed the alloy bead that weight is no less than 50g with the tin band.The melting of shower furnace argon filling prevents the tin loss; Adopt the water-cooled red copper crucible to prevent the pollution of other element impurity simultaneously in the shower furnace.
The present invention is owing to adopt the mode of master alloy to join in the smelting of zirconium alloy; Guaranteed that each elemental composition accurately with stable, adopts the first melting of vacuum plasma argon arc simultaneously, because of the tin element fusing point low; Adopt this technology to make the preliminary alloying of alloy, prevent the volatilization of tin element.Argon filling melting during the shower furnace melting in addition prevents the tin loss; Adopt the water-cooled red copper crucible in the shower furnace, prevented the dirty element of other element impurity.
Embodiment
1, master alloy nominal composition: Zr-33Sn-4.6Fe-2.3Cr
2, chemical ingredients sees the following form:
3, the technological process of production:
3.1 proportioning: the Zr-35Sn-4.55Fe-2.55Cr proportioning 100g that weighs
Zr adopts the atomic level zirc sponge; Sn adopts " 0 " level tin shavings and the thick Sn band of 0.5mm; Fe adopts pure Fe powder, and Fe >=99.9%Cr adopts pure Cr powder Cr >=99.6% to prepare burden by the 100g that weighs, wherein zirc sponge: 57.9g; The Sn bits add Sn band: 35g, the Fe powder: pack the bead that becomes to weigh 100g with the Sn band after 4.55g Cr powder: 2.55g weighs.3.2 the first melting of vacuum plasma argon arc
50 of the Vakuumkammers of at every turn packing into have been with the alloy beads that packed with Sn; Be evacuated to below the 1Pa, adopt the vacuum plasma argon welder to alloy ball melting one by one, melting is to completely liq; Solidify the back shelling and continue melting, melting electric current 250～300A voltage 30～40V
3.3 shower furnace melting
Shove charge: 50 of each shove charges are the alloy ball of melting tentatively, about 5kg
Smelting furnace vacuum :≤1Pa/min
Argon filling pressure :-0.2 normal atmosphere
Power: 10KW/3min-20KW/5min-30KW/5min-40KW/5min-50KW/5min-60KW/ is fusing-40KW extremely fully
/ insulation 10min-liquid
Cooling time: 2h.
Claims (5)
1. a kind of Zr-Sn-Fe-Cr master alloy of used by nuclear reactor zirconium alloy is characterized in that each component weight percent content is following:
2. a kind of Zr-Sn-Fe-Cr master alloy of used by nuclear reactor zirconium alloy as claimed in claim 1, its preparation technology is: according to the first melting of proportion ingredient → vacuum plasma argon arc → shower furnace melting → ladle barrow bits → analysis → warehouse-in.
3. a kind of Zr-Sn-Fe-Cr master alloy of used by nuclear reactor zirconium alloy as claimed in claim 2 preparation technology, it is characterized in that: Zr uses the atomic level zirc sponge during proportioning; Sn uses " 0 " level tin, and rolls into the tin band; Fe adopts straight iron powder, Fe >=99.9%; The pure chromium powder that Cr adopts; And all the other raw material packet are processed the alloy bead that weight is no less than 50g with the tin band.
4. like claim 2 or a kind of Zr-Sn-Fe-Cr master alloy of 3 described used by nuclear reactor zirconium alloys preparation technology, it is characterized in that the melting of shower furnace argon filling, prevent the tin loss; Adopt the water-cooled red copper crucible to prevent the pollution of other element impurity simultaneously in the shower furnace.
5. a kind of Zr-Sn-Fe-Cr master alloy of used by nuclear reactor zirconium alloy according to claim 2 preparation technology; The technology that it is characterized in that the first melting of vacuum plasma argon arc is: 50 the alloy beads that packed with the Sn band of Vakuumkammer of at every turn packing into; Be evacuated to below the 1Pa, adopt the vacuum plasma argon welder to alloy ball melting one by one, melting is to completely liq; Solidify the back shelling and continue melting, melting electric current 250～300A; Voltage 30～40V; Simultaneously the shower furnace melting technology is: shove charge: 50 of each shove charges are the alloy ball of melting tentatively, about 5kg; Smelting furnace vacuum :≤1Pa/min; Argon filling pressure :-0.2 normal atmosphere; Power: 10KW/3min-20KW/5min-30KW/5min-40KW/5min-50KW/5min-60KW/ is fusing-40KW extremely fully; Insulation 10min-liquid; Cooling time: 2h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210044148 CN102618753B (en) | 2012-02-24 | 2012-02-24 | Zr-Sn-Fe-Cr intermediate alloy of zirconium alloy for nuclear reactor and preparation process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210044148 CN102618753B (en) | 2012-02-24 | 2012-02-24 | Zr-Sn-Fe-Cr intermediate alloy of zirconium alloy for nuclear reactor and preparation process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102618753A true CN102618753A (en) | 2012-08-01 |
| CN102618753B CN102618753B (en) | 2013-08-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210044148 Expired - Fee Related CN102618753B (en) | 2012-02-24 | 2012-02-24 | Zr-Sn-Fe-Cr intermediate alloy of zirconium alloy for nuclear reactor and preparation process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102618753B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4164420A (en) * | 1977-01-07 | 1979-08-14 | Ugine Aciers | Master alloy for the preparation of zirconium alloys |
| JPS60190540A (en) * | 1984-03-12 | 1985-09-28 | Nippon Mining Co Ltd | Production of zirconium alloy ingot for nuclear reactor |
-
2012
- 2012-02-24 CN CN 201210044148 patent/CN102618753B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4164420A (en) * | 1977-01-07 | 1979-08-14 | Ugine Aciers | Master alloy for the preparation of zirconium alloys |
| JPS60190540A (en) * | 1984-03-12 | 1985-09-28 | Nippon Mining Co Ltd | Production of zirconium alloy ingot for nuclear reactor |
Non-Patent Citations (2)
| Title |
|---|
| N.NIEVA,等: "Experimental partial phase diagram of the Zr-Sn-Fe system", 《JOURNAL OF NUCLEAR MATERIALS》, vol. 359, no. 1, 31 December 2006 (2006-12-31), pages 29 - 40 * |
| 张仁岐: "Zr-4合金轧管开裂原因的探讨", 《稀有金属材料与工程》, no. 4, 31 December 1988 (1988-12-31), pages 1 - 4 * |
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| Publication number | Publication date |
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| CN102618753B (en) | 2013-08-21 |
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