CN105063439A - Aluminum alloy hollow ingot for nuclear reactor and manufacturing method for aluminum alloy hollow ingot - Google Patents
Aluminum alloy hollow ingot for nuclear reactor and manufacturing method for aluminum alloy hollow ingot Download PDFInfo
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- CN105063439A CN105063439A CN201510455443.4A CN201510455443A CN105063439A CN 105063439 A CN105063439 A CN 105063439A CN 201510455443 A CN201510455443 A CN 201510455443A CN 105063439 A CN105063439 A CN 105063439A
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Abstract
The invention relates to an aluminum alloy hollow ingot material and a manufacturing method for the aluminum alloy hollow ingot material, in particular to an aluminum alloy hollow ingot for a nuclear reactor and a manufacturing method for the aluminum alloy hollow ingot. The problem that the chemical components of an aluminum alloy hollow ingot manufactured through an existing method are not qualified, so that the yield of cast ingots is low is solved. The aluminum alloy hollow ingot for the nuclear reactor is composed of Si, Fe, Cu, Mn, Mg, Ni, Zn, Ti, B, Cd, L and Al. The manufacturing method includes the steps of firstly, weighing high-purity aluminum ingots, intermediate alloy Al-Si, intermediate alloy Al-Cu and metal Mg; secondly, carrying out smelting to obtain alloy melt; and thirdly, carrying out refining and casting to obtain the aluminum alloy hollow ingot for the nuclear reactor. The aluminum alloy hollow ingot for the nuclear reactor and the manufacturing method for the aluminum alloy hollow ingot have the advantages that the yield of the aluminum alloy hollow ingot, manufactured through the method, for the nuclear reactor is as high as 85%, and the problem of low yield of ingots manufactured through the existing method is resolved. The manufacturing method is mainly used for manufacturing the aluminum alloy hollow ingot for the nuclear reactor.
Description
Technical field
The present invention relates to a kind of aluminum alloy hollow ingot material and manufacture method thereof.
Background technology
The used by nuclear reactor hollow ingot of existing method manufacture is owing to using common aluminium ingot as starting material, trace element in the chemical composition of ingot casting is difficult to control, chemical composition waste product is often had to produce, and internal soundness is unstable, can not meet the use standard of user completely, and its ingot casting yield rate is only 63%.
Summary of the invention
The aluminum alloy hollow ingot that the present invention seeks to solve existing method manufacture causes the problem that ingot casting yield rate is low because chemical composition is defective, and provides a kind of used by nuclear reactor aluminum alloy hollow ingot and manufacture method thereof.
A kind of used by nuclear reactor aluminum alloy hollow ingot is made up of Si, Fe, Cu, Mn, Mg, Ni, Zn, Ti, B, Cd, L and Al; In described used by nuclear reactor aluminum alloy hollow ingot, the massfraction of Si is 0.60% ~ 1.00%, the massfraction of Fe is less than 0.18%, the massfraction of Cu is 0.30% ~ 0.50%, the massfraction of Mn is less than 0.003%, the massfraction of Mg is that the massfraction that the massfraction of 0.70% ~ 1.20%, Ni is less than 0.002%, Zn is less than 0.02%, the massfraction that the massfraction of Ti is less than 0.008%, B is less than 3 × 10
-4the massfraction of %, Cd is less than 3 × 10
-4the massfraction of %, Li is less than 6 × 10
-4%, surplus is Al.
A manufacture method for used by nuclear reactor aluminum alloy hollow ingot, specifically completes according to the following steps:
One, weigh: according to the massfraction of Si be 0.60% ~ 1.00%, the massfraction of Fe is less than 0.18%, the massfraction of Cu is 0.30% ~ 0.50%, the massfraction of Mn is less than 0.003%, the massfraction of Mg is 0.70% ~ 1.20%, the massfraction of Ni is less than 0.002%, the massfraction of Zn is less than 0.02%, the massfraction of Ti is less than 0.008%, the massfraction of B is less than 3 × 10
-4the massfraction of %, Cd is less than 3 × 10
-4the massfraction of %, Li is less than 6 × 10
-4% and surplus are that Al takes high-purity aluminium ingot, master alloy Al-Si, master alloy Al-Cu and metal M g;
Two, melting: first carry out the prepurging of melting fine aluminium, high-purity aluminium ingot step one taken again, master alloy Al-Si and master alloy Al-Cu add in resistance reverberatory furnace successively, resistance reverberatory furnace starts to heat up, the metal M g that step one takes is added when resistance reflection in-furnace temperature rises to 700 ~ 720 DEG C, and be stir-melting 10min ~ 15min under the condition of 700 ~ 750 DEG C in temperature, covering obtains alloy melt after flux; The add-on of described solvent is 2kg/t;
Three, refining is cast: alloy melt step 2 obtained imports standing furnace at temperature is 710 ~ 730 DEG C, argon gas is passed in alloy melt, be 710 ~ 730 DEG C in temperature and pass into refining 10min ~ 15min under argon gas condition, then at temperature is 710 ~ 730 DEG C, 10 ~ 30min is left standstill, obtain alloy melt after refining, alloy melt after the refining obtained in standing furnace is injected crystallizer by flow table, and keep the liquid level of alloy melt after refining in the liquid level of alloy melt after refining in standing furnace and flow table to be in same level, then be 70mm/min ~ 75mm/min in casting speed, casting temp be 710 ~ 720 DEG C and casting cooling water pressure be carry out semicontinuous casting under the condition of 0.08MPa ~ 0.12MPa, namely used by nuclear reactor aluminum alloy hollow ingot casting is obtained.
Advantage of the present invention: one, the present invention adopts existing founding and reduces the generation of chemical composition waste product in conjunction with the accurate operation in the scientific matching of raw material and production process, and ensure that the surface quality of ingot casting; Two, the characteristic that the present invention is directed to different-alloy is selected different to add opportunity, solves the problem of the abundant alloying of each element; Three, the used by nuclear reactor aluminum alloy hollow ingot casting yield rate obtained according to method provided by the invention is high, reaches 85%, solves the problem that ingot casting yield rate prepared by existing method is low.
Embodiment
Embodiment one: present embodiment is a kind of used by nuclear reactor aluminum alloy hollow ingot, is made up of Si, Fe, Cu, Mn, Mg, Ni, Zn, Ti, B, Cd, L and Al; In described used by nuclear reactor aluminum alloy hollow ingot, the massfraction of Si is 0.60% ~ 1.00%, the massfraction of Fe is less than 0.18%, the massfraction of Cu is 0.30% ~ 0.50%, the massfraction of Mn is less than 0.003%, the massfraction of Mg is that the massfraction that the massfraction of 0.70% ~ 1.20%, Ni is less than 0.002%, Zn is less than 0.02%, the massfraction that the massfraction of Ti is less than 0.008%, B is less than 3 × 10
-4the massfraction of %, Cd is less than 3 × 10
-4the massfraction of %, Li is less than 6 × 10
-4%, surplus is Al.
The used by nuclear reactor aluminum alloy hollow ingot obtained by present embodiment proportioning raw materials is main strengthening phase Mg because Mg and Si is formed
2si, after adding Cu, can make up the loss of strength that brings artificial aging of the residence time after quenching, there is quaternary phase Al in adding of Cu
4cu
4mg
5si
4, participate in ag(e)ing process, mainly work in artificial aging process, Cu can also improve hot workability, suppresses extrusion effect.Fe, Mn, Ni, Zn, Ti, B, Cd, Li are impurity element, and in actual production, its content is more low better.
Present embodiment adopts high-purity aluminium ingot, master alloy Al-Si, master alloy Al-Cu and metal M g as melting raw material, provides Si, Fe, Cu, Mn, Mg, Ni, Zn, Ti, B, Cd, L and Al.
Embodiment two: the difference of present embodiment and embodiment one is: in described used by nuclear reactor aluminum alloy hollow ingot, the massfraction of Si is 0.80%, the massfraction of Fe is less than 0.18%, the massfraction of Cu is 0.35%, the massfraction of Mn is less than 0.003%, the massfraction of Mg is that the massfraction that the massfraction of 1.00%, Ni is less than 0.002%, Zn is less than 0.02%, the massfraction that the massfraction of Ti is less than 0.008%, B is less than 3 × 10
-4the massfraction of %, Cd is less than 3 × 10
-4the massfraction of %, Li is less than 6 × 10
-4%, surplus is Al.Other are identical with embodiment one.
Embodiment three: present embodiment is a kind of manufacture method of used by nuclear reactor aluminum alloy hollow ingot, specifically completes according to the following steps:
One, weigh: according to the massfraction of Si be 0.60% ~ 1.00%, the massfraction of Fe is less than 0.18%, the massfraction of Cu is 0.30% ~ 0.50%, the massfraction of Mn is less than 0.003%, the massfraction of Mg is 0.70% ~ 1.20%, the massfraction of Ni is less than 0.002%, the massfraction of Zn is less than 0.02%, the massfraction of Ti is less than 0.008%, the massfraction of B is less than 3 × 10
-4the massfraction of %, Cd is less than 3 × 10
-4the massfraction of %, Li is less than 6 × 10
-4% and surplus are that Al takes high-purity aluminium ingot, master alloy Al-Si, master alloy Al-Cu and metal M g;
Two, melting: first carry out the prepurging of melting fine aluminium, high-purity aluminium ingot step one taken again, master alloy Al-Si and master alloy Al-Cu add in resistance reverberatory furnace successively, resistance reverberatory furnace starts to heat up, the metal M g that step one takes is added when resistance reflection in-furnace temperature rises to 700 ~ 720 DEG C, and be stir-melting 10min ~ 15min under the condition of 700 ~ 750 DEG C in temperature, covering obtains alloy melt after flux; The add-on of described solvent is 2kg/t;
Three, refining is cast: alloy melt step 2 obtained imports standing furnace at temperature is 710 ~ 730 DEG C, argon gas is passed in alloy melt, be 710 ~ 730 DEG C in temperature and pass into refining 10min ~ 15min under argon gas condition, then at temperature is 710 ~ 730 DEG C, 10 ~ 30min is left standstill, obtain alloy melt after refining, alloy melt after the refining obtained in standing furnace is injected crystallizer by flow table, and keep the liquid level of alloy melt after refining in the liquid level of alloy melt after refining in standing furnace and flow table to be in same level, then be 70mm/min ~ 75mm/min in casting speed, casting temp be 710 ~ 720 DEG C and casting cooling water pressure be carry out semicontinuous casting under the condition of 0.08MPa ~ 0.12MPa, namely used by nuclear reactor aluminum alloy hollow ingot casting is obtained.
Present embodiment adopts existing founding and reduces the generation of chemical composition waste product in conjunction with the accurate operation in the scientific matching of raw material and production process, and ensure that the surface quality of ingot casting.
Present embodiment is selected different to add opportunity for the characteristic of different-alloy, solves the problem of the abundant alloying of each element.
The used by nuclear reactor aluminum alloy hollow ingot casting yield rate that the method provided according to present embodiment obtains is high, reaches 85%, solves the problem that ingot casting yield rate prepared by existing method is low.
Embodiment four: the difference of present embodiment and embodiment three is: in step one according to the massfraction of Si be 0.80%, the massfraction of Fe is less than 0.18%, the massfraction of Cu is 0.35%, the massfraction of Mn is less than 0.003%, the massfraction of Mg is 1.00%, the massfraction of Ni is less than 0.002%, the massfraction of Zn is less than 0.02%, the massfraction of Ti is less than 0.008%, the massfraction of B is less than 3 × 10
-4the massfraction of %, Cd is less than 3 × 10
-4the massfraction of %, Li is less than 6 × 10
-4% and surplus are that Al takes high-purity aluminium ingot, master alloy Al-Si, master alloy Al-Cu and metal M g.Other are identical with embodiment three.
Embodiment five: one of present embodiment and embodiment three or four difference is: the high-purity aluminium ingot described in step one to be purity be 99.99% rafifinal.Other are identical with embodiment three or four.
Present embodiment adopt purity be the rafifinal of 99.99% as starting material, what ensure further its impurity has very low content.
Embodiment six: present embodiment with one of embodiment three to five difference is: the melting fine aluminium prepurging concrete operations described in step 2 are as follows: 1., coating: be coated with one deck TiO by contacting instrument with aluminium liquid in operating process
2, comprise sample scoop, the rake stirred, stream pipe, hammer drill and control valve, 2., by fine aluminium ingot add in resistance reverberatory furnace, and be stir-melting 10min ~ 15min under the condition of 700 ~ 750 DEG C in temperature, covering obtains melt after flux I, the add-on of described solvent I is 2kg/t, melt is imported standing furnace at temperature is 710 ~ 730 DEG C, argon gas is passed in alloy melt, be 710 ~ 730 DEG C in temperature and pass into refining 10min ~ 15min under argon gas condition, then at temperature is 710 ~ 730 DEG C, 10 ~ 30min is left standstill, obtain melt after refining, melt after the refining obtained in standing furnace is injected crystallizer by flow table, and keep the liquid level of melt after refining in the liquid level of melt after refining in standing furnace and flow table to be in same level, then be 70mm/min ~ 75mm/min in casting speed, casting temp be 710 ~ 720 DEG C and casting cooling water pressure be carry out semicontinuous casting under the condition of 0.08 ~ 0.12MPa, obtain fine aluminium ingot casting, 3., 2. repeating step operates 9 ~ 14 times, 4., by low boron aluminium ingot add in resistance reverberatory furnace, and be stir-melting 10min ~ 15min under the condition of 700 ~ 750 DEG C in temperature, covering obtains low boron molten aluminium after flux II, the add-on of described solvent II is 2kg/t, low boron molten aluminium is imported standing furnace at temperature is 710 ~ 730 DEG C, argon gas is passed in low boron molten aluminium, be 710 ~ 730 DEG C in temperature and pass into refining 10min ~ 15min under argon gas condition, then at temperature is 710 ~ 730 DEG C, 10 ~ 30min is left standstill, low boron molten aluminium after obtaining refining, low boron molten aluminium after the refining obtained in standing furnace is injected crystallizer by flow table, and keep the liquid level of low boron molten aluminium after refining in the liquid level of low boron molten aluminium after refining in standing furnace and flow table to be in same level, then be 70mm/min ~ 75mm/min in casting speed, casting temp be 710 ~ 720 DEG C and casting cooling water pressure be carry out semicontinuous casting under the condition of 0.08MPa ~ 0.12MPa, obtain low boron aluminium ingot casting, namely the prepurging of melting fine aluminium is completed, step 2. described in fine aluminium ingot to be purity be 99.7% aluminium ingot, step 4. described in low boron aluminium ingot to be purity be 99.7% aluminium ingot, and in low boron aluminium ingot, the massfraction of B is less than 1 × 10
-4%.Other are identical with embodiment three to five.
Preparation aspect before manufacture, present embodiment produces 10 ~ 15 stove fine aluminiums in advance as transition, avoids the metallic element because containing when other alloys produced by resistance furnace and affects the purity of nuclear reactor materials; In production operation, all instrument TiO contacted with aluminium liquid
2coating, avoids and causes participating in of magazine because instrument melts.
Embodiment seven: present embodiment and embodiment six difference are: step 2. in be 0.15m with gas velocity in melt
3/ min ~ 0.20m
3/ min passes into argon gas, be 710 ~ 730 DEG C and argon gas speed is 0.15m in temperature
3/ min ~ 0.20m
3refining 10min ~ 15min under/min condition.Other are identical with embodiment six.
Embodiment eight: present embodiment and embodiment six or seven difference are: step 2. in casting speed be 72mm/min, casting temp is 720 DEG C and casts under cooling water pressure is the condition of 0.09MPa and carry out semicontinuous casting, obtains fine aluminium ingot casting.Other are not identical with embodiment six or seven.
Embodiment nine: one of present embodiment and embodiment six to eight difference is: step 2. described in stir-melting be both sides fire door convection agitation from resistance reverberatory furnace.Other are identical with embodiment six to nine.
Embodiment ten: one of present embodiment and embodiment six to nine difference is: step 2. described in flux I by KCl, NaCl and Na
3alF
6mix; And in described flux I, the massfraction of KCl is the massfraction of 45%, NaCl is 30%, Na
3alF
6massfraction be 25%.Other are identical with embodiment six to nine.
Embodiment 11: one of present embodiment and embodiment six to ten difference is: step 4. in be 0.15m with gas velocity in low boron molten aluminium
3/ min ~ 0.20m
3/ min passes into argon gas, be 710 ~ 730 DEG C and argon gas speed is 0.15m in temperature
3/ min ~ 0.20m
3refining 10min ~ 15min under/min condition.Other are identical with embodiment six to ten.
Embodiment 12: one of present embodiment and embodiment six to ten one difference is: step 4. in casting speed be 72mm/min, casting temp is 720 DEG C and casts under cooling water pressure is the condition of 0.09MPa and carry out semicontinuous casting, obtain low boron aluminium ingot casting, namely complete the prepurging of melting fine aluminium.Other are identical with embodiment six to ten one.
Embodiment 13: one of present embodiment and embodiment six to ten two difference is: step 4. described in stir-melting be both sides fire door convection agitation from resistance reverberatory furnace.Other are identical with embodiment six to ten two.
Embodiment 14: one of present embodiment and embodiment six to ten three difference is: step 4. described in flux II by KCl, NaCl and Na
3alF
6mix; And in described flux II, the massfraction of KCl is the massfraction of 45%, NaCl is 30%, Na
3alF
6massfraction be 25%.Other are identical with embodiment six to ten three.
Embodiment 15: one of present embodiment and embodiment three to ten four difference is: the stir-melting described in step 2 is the both sides fire door convection agitation from resistance reverberatory furnace.Other are identical with embodiment three to ten four.
Embodiment 16: one of present embodiment and embodiment three to ten five difference is: the flux described in step 2 is by KCl, NaCl and Na
3alF
6mix; And in described flux, the massfraction of KCl is the massfraction of 45%, NaCl is 30%, Na
3alF
6massfraction be 25%.Other are identical with embodiment three to ten five.
Embodiment 17: one of present embodiment and embodiment three to ten six difference is: be 0.15m with gas velocity in alloy melt in step 3
3/ min ~ 0.20m
3/ min passes into argon gas, be 710 ~ 730 DEG C and argon gas speed is 0.15m in temperature
3/ min ~ 0.20m
3refining 10min ~ 15min under/min condition.Other are identical with embodiment three to ten six.
Embodiment 18: one of present embodiment and embodiment three to ten seven difference is: step 3 casting speed be 72mm/min, casting temp is 720 DEG C and casts under cooling water pressure is the condition of 0.09MPa and carry out semicontinuous casting, namely obtains used by nuclear reactor aluminum alloy hollow ingot casting.Other are identical with embodiment three to ten seven.
Adopt following verification experimental verification effect of the present invention:
Embodiment 1: a kind of manufacture method of used by nuclear reactor aluminum alloy hollow ingot, specifically completes according to the following steps:
One, weigh: according to the massfraction of Si be 0.80%, the massfraction of Fe is 0.15%, the massfraction of Cu is 0.35%, the massfraction of Mn is less than 0.003%, the massfraction of Mg is 1.0%, the massfraction of Ni is less than 0.002%, the massfraction of Zn is less than 0.02%, the massfraction of Ti is less than 0.008%, the massfraction of B is less than 3 × 10
-4the massfraction of %, Cd is less than 3 × 10
- 4the massfraction of %, Li is less than 6 × 10
- 4% and surplus are that Al takes high-purity aluminium ingot, master alloy Al-Si, master alloy Al-Cu and metal M g;
Two, melting: first carry out the prepurging of melting fine aluminium, high-purity aluminium ingot step one taken again, master alloy Al-Si and master alloy Al-Cu add in resistance reverberatory furnace successively, resistance reverberatory furnace starts to heat up, the metal M g that step one takes is added when resistance reflection in-furnace temperature rises to 720 DEG C, and be stir-melting 10min under the condition of 720 DEG C in temperature, covering obtains alloy melt after flux; The add-on of described solvent is 2kg/t;
Three, refining casting: alloy melt step 2 obtained imports standing furnace at temperature is 720 DEG C, is 0.15m in alloy melt with gas velocity
3/ min passes into argon gas, be 720 DEG C and argon gas speed is 0.15m in temperature
3refining 10min under/min condition, then at temperature is 720 DEG C, 15min is left standstill, obtain alloy melt after refining, alloy melt after the refining obtained in standing furnace is injected crystallizer by flow table, and keep the liquid level of alloy melt after refining in the liquid level of alloy melt after refining in standing furnace and flow table to be in same level, then casting speed be 72mm/min, casting temp be 720 DEG C and casting cooling water pressure be the condition of 0.09MPa under carry out semicontinuous casting, namely obtain used by nuclear reactor aluminum alloy hollow ingot casting.
High-purity aluminium ingot described in embodiment 1 step one to be purity be 99.99% rafifinal.
1., coating melting fine aluminium prepurging concrete operations described in embodiment 1 step 2 are as follows:: be coated with one deck TiO by contacting instrument with aluminium liquid in operating process
2, comprise sample scoop, the rake stirred, stream pipe, hammer drill and control valve; 2., by fine aluminium ingot add in resistance reverberatory furnace, and be stir-melting 10min under the condition of 720 DEG C in temperature, covering obtains melt after flux I; The add-on of described solvent I is 2kg/t; Melt is imported standing furnace at temperature is 720 DEG C, is 0.15m with gas velocity in alloy melt
3/ min passes into argon gas, be 720 DEG C and argon gas speed is 0.15m in temperature
3refining 10min under/min condition, then at temperature is 720 DEG C, 15min is left standstill, obtain melt after refining, melt after the refining obtained in standing furnace is injected crystallizer by flow table, and keep the liquid level of melt after refining in the liquid level of melt after refining in standing furnace and flow table to be in same level, then casting speed be 72mm/min, casting temp be 720 DEG C and casting cooling water pressure be the condition of 0.09MPa under carry out semicontinuous casting, obtain fine aluminium ingot casting; 3., 2. repeating step operates 12 times; 4., by low boron aluminium ingot add in resistance reverberatory furnace, and be stir-melting 10min under the condition of 720 DEG C in temperature, covering obtains low boron molten aluminium after flux II; The add-on of described solvent II is 2kg/t; Low boron molten aluminium is imported standing furnace at temperature is 720 DEG C, is 0.15m with gas velocity in low boron molten aluminium
3/ min passes into argon gas, be 720 DEG C and argon gas speed is 0.15m in temperature
3refining 10min under/min condition, then at temperature is 720 DEG C, 15min is left standstill, low boron molten aluminium after obtaining refining, low boron molten aluminium after the refining obtained in standing furnace is injected crystallizer by flow table, and keep the liquid level of low boron molten aluminium after refining in the liquid level of low boron molten aluminium after refining in standing furnace and flow table to be in same level, then casting speed be 72mm/min, casting temp be 720 DEG C and casting cooling water pressure be the condition of 0.09MPa under carry out semicontinuous casting, obtain low boron aluminium ingot casting, namely complete the prepurging of melting fine aluminium; Step 2. described in fine aluminium ingot to be purity be 99.7% aluminium ingot; Step 4. described in low boron aluminium ingot to be purity be 99.7% aluminium ingot, and in low boron aluminium ingot, the massfraction of B is less than 1 × 10
- 4%; Step 2. described in stir-melting be both sides fire door convection agitation from resistance reverberatory furnace; Step 2. described in flux I by KCl, NaCl and Na
3alF
6mix; And in described flux I, the massfraction of KCl is the massfraction of 45%, NaCl is 30%, Na
3alF
6massfraction be 25%; Step 4. described in stir-melting be both sides fire door convection agitation from resistance reverberatory furnace; Step 4. described in flux II by KCl, NaCl and Na
3alF
6mix; And in described flux II, the massfraction of KCl is the massfraction of 45%, NaCl is 30%, Na
3alF
6massfraction be 25%.
Stir-melting described in embodiment 1 step 2 is the both sides fire door convection agitation from resistance reverberatory furnace.
Flux described in embodiment 1 step 2 is by KCl, NaCl and Na
3alF
6mix; And in described flux, the massfraction of KCl is the massfraction of 45%, NaCl is 30%, Na
3alF
6massfraction be 25%.
Prepare used by nuclear reactor aluminum alloy hollow ingot casting yield rate by embodiment 1 and reach 85%.
Embodiment 2: a kind of manufacture method of used by nuclear reactor aluminum alloy hollow ingot, specifically completes according to the following steps:
One, weigh: according to the massfraction of Si be 0.75%, the massfraction of Fe is 0.15%, the massfraction of Cu is 0.40%, the massfraction of Mn is less than 0.003%, the massfraction of Mg is 0.95%, the massfraction of Ni is less than 0.002%, the massfraction of Zn is less than 0.02%, the massfraction of Ti is less than 0.008%, the massfraction of B is less than 3 × 10
-4the massfraction of %, Cd is less than 3 × 10
-4the massfraction of %, Li is less than 6 × 10
-4% and surplus are that Al takes high-purity aluminium ingot, master alloy Al-Si, master alloy Al-Cu and metal M g;
Two, melting: first carry out the prepurging of melting fine aluminium, high-purity aluminium ingot step one taken again, master alloy Al-Si and master alloy Al-Cu add in resistance reverberatory furnace successively, resistance reverberatory furnace starts to heat up, the metal M g that step one takes is added when resistance reflection in-furnace temperature rises to 730 DEG C, and be stir-melting 15min under the condition of 730 DEG C in temperature, covering obtains alloy melt after flux; The add-on of described solvent is 2kg/t;
Three, refining casting: alloy melt step 2 obtained imports standing furnace at temperature is 720 DEG C, is 0.15m in alloy melt with gas velocity
3/ min passes into argon gas, be 720 DEG C and argon gas speed is 0.15m in temperature
3refining 10min under/min condition, then at temperature is 720 DEG C, 20min is left standstill, obtain alloy melt after refining, alloy melt after the refining obtained in standing furnace is injected crystallizer by flow table, and keep the liquid level of alloy melt after refining in the liquid level of alloy melt after refining in standing furnace and flow table to be in same level, then casting speed be 75mm/min, casting temp be 720 DEG C and casting cooling water pressure be the condition of 0.10MPa under carry out semicontinuous casting, namely obtain used by nuclear reactor aluminum alloy hollow ingot casting.
High-purity aluminium ingot described in embodiment 2 step one to be purity be 99.99% rafifinal.
1., coating melting fine aluminium prepurging concrete operations described in embodiment 2 step 2 are as follows:: be coated with one deck TiO by contacting instrument with aluminium liquid in operating process
2, comprise sample scoop, the rake stirred, stream pipe, hammer drill and control valve; 2., by fine aluminium ingot add in resistance reverberatory furnace, and be stir-melting 15min under the condition of 730 DEG C in temperature, covering obtains melt after flux I; The add-on of described solvent I is 2kg/t; Melt is imported standing furnace at temperature is 720 DEG C, is 0.15m with gas velocity in alloy melt
3/ min passes into argon gas, be 720 DEG C and argon gas speed is 0.15m in temperature
3refining 10min under/min condition, then at temperature is 720 DEG C, 15min is left standstill, obtain melt after refining, melt after the refining obtained in standing furnace is injected crystallizer by flow table, and keep the liquid level of melt after refining in the liquid level of melt after refining in standing furnace and flow table to be in same level, then casting speed be 75mm/min, casting temp be 720 DEG C and casting cooling water pressure be the condition of 0.10MPa under carry out semicontinuous casting, obtain fine aluminium ingot casting; 3., 2. repeating step operates 12 times; 4., by low boron aluminium ingot add in resistance reverberatory furnace, and be stir-melting 15min under the condition of 730 DEG C in temperature, covering obtains low boron molten aluminium after flux II; The add-on of described solvent II is 2kg/t; Low boron molten aluminium is imported standing furnace at temperature is 720 DEG C, is 0.15m with gas velocity in low boron molten aluminium
3/ min passes into argon gas, be 720 DEG C and argon gas speed is 0.15m in temperature
3refining 10min under/min condition, then at temperature is 720 DEG C, 15min is left standstill, low boron molten aluminium after obtaining refining, low boron molten aluminium after the refining obtained in standing furnace is injected crystallizer by flow table, and keep the liquid level of low boron molten aluminium after refining in the liquid level of low boron molten aluminium after refining in standing furnace and flow table to be in same level, then casting speed be 75mm/min, casting temp be 720 DEG C and casting cooling water pressure be the condition of 0.10MPa under carry out semicontinuous casting, obtain low boron aluminium ingot casting, namely complete the prepurging of melting fine aluminium; Step 2. described in fine aluminium ingot to be purity be 99.7% aluminium ingot; Step 4. described in low boron aluminium ingot to be purity be 99.7% aluminium ingot, and in low boron aluminium ingot, the massfraction of B is less than 1 × 10
-4%; Step 2. described in stir-melting be both sides fire door convection agitation from resistance reverberatory furnace; Step 2. described in flux I by KCl, NaCl and Na
3alF
6mix; And in described flux I, the massfraction of KCl is the massfraction of 45%, NaCl is 30%, Na
3alF
6massfraction be 25%; Step 4. described in stir-melting be both sides fire door convection agitation from resistance reverberatory furnace; Step 4. described in flux II by KCl, NaCl and Na
3alF
6mix; And in described flux II, the massfraction of KCl is the massfraction of 45%, NaCl is 30%, Na
3alF
6massfraction be 25%.
Stir-melting described in embodiment 2 step 2 is the both sides fire door convection agitation from resistance reverberatory furnace.
Flux described in embodiment 2 step 2 is by KCl, NaCl and Na
3alF
6mix; And in described flux, the massfraction of KCl is the massfraction of 45%, NaCl is 30%, Na
3alF
6massfraction be 25%.
Prepare used by nuclear reactor aluminum alloy hollow ingot casting yield rate by embodiment 2 and reach 85.5%.
Claims (10)
1. a used by nuclear reactor aluminum alloy hollow ingot, is characterized in that used by nuclear reactor aluminum alloy hollow ingot is made up of Si, Fe, Cu, Mn, Mg, Ni, Zn, Ti, B, Cd, L and Al; In described used by nuclear reactor aluminum alloy hollow ingot, the massfraction of Si is 0.60% ~ 1.00%, the massfraction of Fe is less than 0.18%, the massfraction of Cu is 0.30% ~ 0.50%, the massfraction of Mn is less than 0.003%, the massfraction of Mg is that the massfraction that the massfraction of 0.70% ~ 1.20%, Ni is less than 0.002%, Zn is less than 0.02%, the massfraction that the massfraction of Ti is less than 0.008%, B is less than 3 × 10
-4the massfraction of %, Cd is less than 3 × 10
-4the massfraction of %, Li is less than 6 × 10
-4%, surplus is Al.
2. a kind of used by nuclear reactor aluminum alloy hollow ingot according to claim 1, the massfraction that it is characterized in that Si in described used by nuclear reactor aluminum alloy hollow ingot is 0.80%, the massfraction of Fe is less than 0.18%, the massfraction of Cu is the massfraction that the massfraction of 0.35%, Mn is less than 0.003%, Mg is 1.00%, the massfraction of Ni is less than 0.002%, the massfraction that the massfraction that the massfraction of Zn is less than 0.02%, Ti is less than 0.008%, B is less than 3 × 10
-4the massfraction of %, Cd is less than 3 × 10
-4the massfraction of %, Li is less than 6 × 10
-4%, surplus is Al.
3. a manufacture method for used by nuclear reactor aluminum alloy hollow ingot, is characterized in that the manufacture method of used by nuclear reactor aluminum alloy hollow ingot completes according to the following steps:
One, weigh: according to the massfraction of Si be 0.60% ~ 1.00%, the massfraction of Fe is less than 0.18%, the massfraction of Cu is 0.30% ~ 0.50%, the massfraction of Mn is less than 0.003%, the massfraction of Mg is 0.70% ~ 1.20%, the massfraction of Ni is less than 0.002%, the massfraction of Zn is less than 0.02%, the massfraction of Ti is less than 0.008%, the massfraction of B is less than 3 × 10
-4the massfraction of %, Cd is less than 3 × 10
-4the massfraction of %, Li is less than 6 × 10
-4% and surplus are that Al takes high-purity aluminium ingot, master alloy Al-Si, master alloy Al-Cu and metal M g;
Two, melting: first carry out the prepurging of melting fine aluminium, high-purity aluminium ingot step one taken again, master alloy Al-Si and master alloy Al-Cu add in resistance reverberatory furnace successively, resistance reverberatory furnace starts to heat up, the metal M g that step one takes is added when resistance reflection in-furnace temperature rises to 700 ~ 720 DEG C, and be stir-melting 10min ~ 15min under the condition of 700 ~ 750 DEG C in temperature, covering obtains alloy melt after flux; The add-on of described solvent is 2kg/t;
Three, refining is cast: alloy melt step 2 obtained imports standing furnace at temperature is 710 ~ 730 DEG C, argon gas is passed in alloy melt, be 710 ~ 730 DEG C in temperature and pass into refining 10min ~ 15min under argon gas condition, then at temperature is 710 ~ 730 DEG C, 10 ~ 30min is left standstill, obtain alloy melt after refining, alloy melt after the refining obtained in standing furnace is injected crystallizer by flow table, and keep the liquid level of alloy melt after refining in the liquid level of alloy melt after refining in standing furnace and flow table to be in same level, then be 70mm/min ~ 75mm/min in casting speed, casting temp be 710 ~ 720 DEG C and casting cooling water pressure be carry out semicontinuous casting under the condition of 0.08 ~ 0.12MPa, namely used by nuclear reactor aluminum alloy hollow ingot casting is obtained.
4. the manufacture method of a kind of used by nuclear reactor aluminum alloy hollow ingot according to claim 1, it is characterized in that in step one according to the massfraction of Si be 0.80%, the massfraction of Fe is less than 0.18%, the massfraction of Cu is 0.35%, the massfraction of Mn is less than 0.003%, the massfraction of Mg is 1.00%, the massfraction of Ni is less than 0.002%, the massfraction of Zn is less than 0.02%, the massfraction of Ti is less than 0.008%, the massfraction of B is less than 3 × 10
-4the massfraction of %, Cd is less than 3 × 10
-4the massfraction of %, Li is less than 6 × 10
-4% and surplus are that Al takes high-purity aluminium ingot, master alloy Al-Si, master alloy Al-Cu and metal M g.
5. the manufacture method of a kind of used by nuclear reactor aluminum alloy hollow ingot according to claim 1, is characterized in that the high-purity aluminium ingot described in step one to be purity is the rafifinal of 99.99%.
1., coating 6. the manufacture method of a kind of used by nuclear reactor aluminum alloy hollow ingot according to claim 1, is characterized in that the melting fine aluminium prepurging concrete operations described in step 2 are as follows:: be coated with one deck TiO by contacting instrument with aluminium liquid in operating process
2, comprise sample scoop, the rake stirred, stream pipe, hammer drill and control valve, 2., by fine aluminium ingot add in resistance reverberatory furnace, and be stir-melting 10min ~ 15min under the condition of 700 ~ 750 DEG C in temperature, covering obtains melt after flux I, the add-on of described solvent I is 2kg/t, melt is imported standing furnace at temperature is 710 ~ 730 DEG C, argon gas is passed in alloy melt, be 710 ~ 730 DEG C in temperature and pass into refining 10min ~ 15min under argon gas condition, then at temperature is 710 ~ 730 DEG C, 10 ~ 30min is left standstill, obtain melt after refining, melt after the refining obtained in standing furnace is injected crystallizer by flow table, and keep the liquid level of melt after refining in the liquid level of melt after refining in standing furnace and flow table to be in same level, then be 70mm/min ~ 75mm/min in casting speed, casting temp be 710 ~ 720 DEG C and casting cooling water pressure be carry out semicontinuous casting under the condition of 0.08 ~ 0.12MPa, obtain fine aluminium ingot casting, 3., 2. repeating step operates 9 ~ 14 times, 4., by low boron aluminium ingot add in resistance reverberatory furnace, and be stir-melting 10min ~ 15min under the condition of 700 ~ 750 DEG C in temperature, covering obtains low boron molten aluminium after flux II, the add-on of described solvent II is 2kg/t, low boron molten aluminium is imported standing furnace at temperature is 710 ~ 730 DEG C, argon gas is passed in low boron molten aluminium, be 710 ~ 730 DEG C in temperature and pass into refining 10min ~ 15min under argon gas condition, then at temperature is 710 ~ 730 DEG C, 10 ~ 30min is left standstill, low boron molten aluminium after obtaining refining, low boron molten aluminium after the refining obtained in standing furnace is injected crystallizer by flow table, and keep the liquid level of low boron molten aluminium after refining in the liquid level of low boron molten aluminium after refining in standing furnace and flow table to be in same level, then be 70mm/min ~ 75mm/min in casting speed, casting temp be 710 ~ 720 DEG C and casting cooling water pressure be carry out semicontinuous casting under the condition of 0.08MPa ~ 0.12MPa, obtain low boron aluminium ingot casting, namely the prepurging of melting fine aluminium is completed, step 2. described in fine aluminium ingot to be purity be 99.7% aluminium ingot, step 4. described in low boron aluminium ingot to be purity be 99.7% aluminium ingot, and in low boron aluminium ingot, the massfraction of B is less than 1 × 10
-4%.
7. the manufacture method of a kind of used by nuclear reactor aluminum alloy hollow ingot according to claim 6, is characterized in that during step being 2. 0.15m with gas velocity in melt
3/ min ~ 0.20m
3/ min passes into argon gas, be 710 ~ 730 DEG C and argon gas speed is 0.15m in temperature
3/ min ~ 0.20m
3refining 10min ~ 15min under/min condition; Step 4. in be 0.15m with gas velocity in low boron molten aluminium
3/ min ~ 0.20m
3/ min passes into argon gas, be 710 ~ 730 DEG C and argon gas speed is 0.15m in temperature
3/ min ~ 0.20m
3refining 10min ~ 15min under/min condition.
8. the manufacture method of a kind of used by nuclear reactor aluminum alloy hollow ingot according to claim 1, is characterized in that the flux I described in step is 2. by KCl, NaCl and Na
3alF
6mix; And in described flux I, the massfraction of KCl is the massfraction of 45%, NaCl is 30%, Na
3alF
6massfraction be 25%; Step 4. described in flux II by KCl, NaCl and Na
3alF
6mix; And in described flux II, the massfraction of KCl is the massfraction of 45%, NaCl is 30%, Na
3alF
6massfraction be 25%.
9. the manufacture method of a kind of used by nuclear reactor aluminum alloy hollow ingot according to claim 1, is characterized in that the flux described in step 2 is by KCl, NaCl and Na
3alF
6mix; And in described flux, the massfraction of KCl is the massfraction of 45%, NaCl is 30%, Na
3alF
6massfraction be 25%.
10. the manufacture method of a kind of used by nuclear reactor aluminum alloy hollow ingot according to claim 1, is characterized in that being 0.15m with gas velocity in alloy melt in step 3
3/ min ~ 0.20m
3/ min passes into argon gas, be 710 ~ 730 DEG C and argon gas speed is 0.15m in temperature
3/ min ~ 0.20m
3refining 10min ~ 15min under/min condition.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105603264A (en) * | 2016-03-10 | 2016-05-25 | 东北轻合金有限责任公司 | High-frequency welded tube cast ingot and manufacturing method thereof |
| CN108913964A (en) * | 2018-07-13 | 2018-11-30 | 东北轻合金有限责任公司 | A kind of superhard hollow billet of large-size high-tensile and its manufacturing method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62270742A (en) * | 1986-05-16 | 1987-11-25 | Sumitomo Electric Ind Ltd | Aluminum alloy and its production |
| CN102021447A (en) * | 2010-12-30 | 2011-04-20 | 东北轻合金有限责任公司 | Manufacture method of extra super duralumin alloy cast ingots |
| CN102051562A (en) * | 2009-11-03 | 2011-05-11 | 北京有色金属研究总院 | Process for homogenizing aluminum alloy |
| CN104046859A (en) * | 2014-06-26 | 2014-09-17 | 龙口市丛林铝材有限公司 | Grain-refined extruded aluminum alloy tubular product with large wall thickness and preparation method thereof |
| CN104120312A (en) * | 2014-08-12 | 2014-10-29 | 山东裕航特种合金装备有限公司 | Manufacturing method of 6A02T651 aluminum alloy seam pipe for air separators |
-
2015
- 2015-07-29 CN CN201510455443.4A patent/CN105063439B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62270742A (en) * | 1986-05-16 | 1987-11-25 | Sumitomo Electric Ind Ltd | Aluminum alloy and its production |
| CN102051562A (en) * | 2009-11-03 | 2011-05-11 | 北京有色金属研究总院 | Process for homogenizing aluminum alloy |
| CN102021447A (en) * | 2010-12-30 | 2011-04-20 | 东北轻合金有限责任公司 | Manufacture method of extra super duralumin alloy cast ingots |
| CN104046859A (en) * | 2014-06-26 | 2014-09-17 | 龙口市丛林铝材有限公司 | Grain-refined extruded aluminum alloy tubular product with large wall thickness and preparation method thereof |
| CN104120312A (en) * | 2014-08-12 | 2014-10-29 | 山东裕航特种合金装备有限公司 | Manufacturing method of 6A02T651 aluminum alloy seam pipe for air separators |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105603264A (en) * | 2016-03-10 | 2016-05-25 | 东北轻合金有限责任公司 | High-frequency welded tube cast ingot and manufacturing method thereof |
| CN105603264B (en) * | 2016-03-10 | 2017-08-29 | 东北轻合金有限责任公司 | A kind of ratio-frequency welded tube ingot casting |
| CN108913964A (en) * | 2018-07-13 | 2018-11-30 | 东北轻合金有限责任公司 | A kind of superhard hollow billet of large-size high-tensile and its manufacturing method |
| CN108913964B (en) * | 2018-07-13 | 2020-04-24 | 东北轻合金有限责任公司 | Method for manufacturing large-size high-strength superhard hollow round ingot |
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