CN106676297A - Smelting method and system for zirconium niobium lead alloy - Google Patents
Smelting method and system for zirconium niobium lead alloy Download PDFInfo
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- CN106676297A CN106676297A CN201710183339.3A CN201710183339A CN106676297A CN 106676297 A CN106676297 A CN 106676297A CN 201710183339 A CN201710183339 A CN 201710183339A CN 106676297 A CN106676297 A CN 106676297A
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- zirconium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
- C22B9/16—Remelting metals
- C22B9/20—Arc remelting
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Abstract
The invention discloses a smelting method and a system for a zirconium niobium lead alloy. The system comprises a zirconium niobium lead electrode block processing device, a vacuum argon charge welding box and a vacuum consumable electrode arc furnace which are connected in sequence. By adopting the system disclosed by the invention, assembly line type production of the zirconium niobium lead alloy can be achieved, and the production efficiency can be greatly improved. On the basis of a zirconium niobium alloy, lead is added, and moreover the mechanical property, corrosion resistance, creep resistance and the like of a prepared product can be greatly improved by adjusting the ratio of zirconium to niobium and lead and smelting conditions. Tests show that the zirconium niobium lead alloy disclosed by the invention is good in mechanical property, corrosion resistance and creep resistance.
Description
Technical field
The present invention relates to a kind of zirconium niobium metal, and in particular to a kind of smelting process and system of zirconium niobium metal.Belong to
Non-ferrous metal metallurgy technical field.
Background technology
Reactor fuel assemblies are the critical components of reactor core, and major function is to protect dyestuff pellet not receive cooling agent
Corrode, release energy, and shielding hot material leaks, therefore, the mechanical property and corrosion resistance of nuclear fuel assembly
Should there is at a relatively high performance requirement.
Wherein, zirconium-niobium alloy is widely used in guarantor's shell material of PHWR, nuclear power station and submarine reactor, but, at present
Zirconium-niobium alloy product quality and unsatisfactory, there is problems with：
1. oxygen is inevitably caused to exist with Impure forms in smelting process, the heat of products obtained therefrom and radiation creep are high；
2. the space that decay resistance and mechanical property are improved.
The content of the invention
The purpose of the present invention is to overcome above-mentioned the deficiencies in the prior art, there is provided a kind of smelting process of zirconium niobium metal.
Present invention also offers a kind of corresponding smelting system of zirconium niobium metal of above-mentioned smelting process.
To achieve the above object, the present invention uses following technical proposals：
A kind of smelting process of zirconium niobium metal, comprises the following steps that：
(1) niobium bar is processed into niobium bits, several same sizes is pressed into after it is stirred with sponge zirconium, lead powder
Electrode block, is transferred along to vacuum argon filling weldering case, and consutrode is welded into by argon arc welding；
(2) melting is obtained final product in vacuum consumable electrode arc furnace；
Wherein, the mass ratio of sponge zirconium, niobium bar and lead powder is 5~8：1：0.2~0.3.
Preferably, the sponge zirconium in step (1) first carries out cleaning and vacuum drying treatment before the use.
Preferably, the niobium bar in step (2) first carried out electron beam furnace purification and ingot treatment before niobium bits are processed into.
A kind of corresponding smelting system of zirconium niobium metal of above-mentioned smelting process, including the zirconium niobium lead electrode block being sequentially connected
Processing unit (plant), vacuum argon filling weldering case and vacuum consumable electrode arc furnace.
Preferably, the zirconium niobium lead electrode block processing unit (plant) is press, and the press is connected with batch mixer, batch mixer
Charging aperture is provided with, it is connected with niobium bits processing unit (plant), sponge zirconium feed pipe and lead powder feed pipe respectively.
It is further preferred that the niobium bits processing unit (plant) is pulverizer.
Still more preferably, the pulverizer is connected with electron beam furnace.
It is further preferred that the sponge zirconium feed pipe is connected with sponge zirconium pretreatment unit, the sponge zirconium is located in advance
Reason device includes service sink and vacuum drier, and the spray head of several Air washers is provided with above service sink.
Beneficial effects of the present invention：
Preparation system of the invention realizes the pipeline system production of zirconium niobium metal, substantially increases production efficiency.This
Invention with the addition of lead on the basis of conventional zirconium-niobium alloy, and by the tune of zirconium, niobium and lead proportion relation and smelting condition
It is whole, substantially increase mechanical property, decay resistance and creep resistant of products obtained therefrom etc..
After tested, zirconium niobium metal of the invention has good mechanical property, decay resistance, and creep resistant
It is good.
Brief description of the drawings
Fig. 1 is preparation system structural representation of the invention；
Wherein, 1 is press, and 2 is that vacuum argon filling welds case, and 3 is vacuum consumable electrode arc furnace, and 4 is batch mixer, and 5 is pulverizer,
6 is sponge zirconium feed pipe, and 7 is lead powder feed pipe, and 8 is electron beam furnace, and 9 is sponge zirconium pretreatment unit, and 91 is service sink,
92 is vacuum drier.
Specific embodiment
The present invention will be further elaborated with reference to the accompanying drawings and examples, it should explanation, and the description below is only
It is, in order to explain the present invention, its content not to be defined.
Embodiment 1：
A kind of smelting process of zirconium niobium metal, comprises the following steps that：
(1) niobium bar is processed into niobium bits, several same sizes is pressed into after it is stirred with sponge zirconium, lead powder
Electrode block, is transferred along to vacuum argon filling weldering case 2, and consutrode is welded into by argon arc welding；
(2) melting is obtained final product in vacuum consumable electrode arc furnace 3；
Wherein, the mass ratio of sponge zirconium, niobium bar and lead powder is 5：1：0.2.
Preferably, the sponge zirconium in step (1) first carries out cleaning and vacuum drying treatment before the use.
Preferably, the niobium bar in step (2) first carried out electron beam furnace purification and ingot treatment before niobium bits are processed into.
As shown in figure 1, a kind of smelting system of zirconium niobium metal, including the zirconium niobium lead electrode block processing dress being sequentially connected
Put, vacuum argon filling welds case 2 and vacuum consumable electrode arc furnace 3.
Zirconium niobium lead electrode block processing unit (plant) is press 1, and press 1 is connected with batch mixer 4, and batch mixer 4 is provided with charging aperture,
It is connected with niobium bits processing unit (plant), sponge zirconium feed pipe 6 and lead powder feed pipe 7 respectively.
Niobium bits processing unit (plant) is pulverizer 5.Pulverizer 5 is connected with electron beam furnace 8.
Sponge zirconium feed pipe 6 is connected with sponge zirconium pretreatment unit 9, and sponge zirconium pretreatment unit includes the He of service sink 91
Vacuum drier 92, the top of service sink 91 is provided with the spray head of several Air washers.
Embodiment 2：
A kind of smelting process of zirconium niobium metal, comprises the following steps that：
(1) niobium bar is processed into niobium bits, several same sizes is pressed into after it is stirred with sponge zirconium, lead powder
Electrode block, is transferred along to vacuum argon filling weldering case 2, and consutrode is welded into by argon arc welding；
(2) melting is obtained final product in vacuum consumable electrode arc furnace 3；
Wherein, the mass ratio of sponge zirconium, niobium bar and lead powder is 8：1：0.3.
Preferably, the sponge zirconium in step (1) first carries out cleaning and vacuum drying treatment before the use.
Preferably, the niobium bar in step (2) first carried out electron beam furnace purification and ingot treatment before niobium bits are processed into.
A kind of smelting system of zirconium niobium metal, with embodiment 1.
Embodiment 3：
A kind of smelting process of zirconium niobium metal, comprises the following steps that：
(1) niobium bar is processed into niobium bits, several same sizes is pressed into after it is stirred with sponge zirconium, lead powder
Electrode block, is transferred along to vacuum argon filling weldering case 2, and consutrode is welded into by argon arc welding；
(2) melting is obtained final product in vacuum consumable electrode arc furnace 3；
Wherein, the mass ratio of sponge zirconium, niobium bar and lead powder is 5：1：0.3.
Preferably, the sponge zirconium in step (1) first carries out cleaning and vacuum drying treatment before the use.
Preferably, the niobium bar in step (2) first carried out electron beam furnace purification and ingot treatment before niobium bits are processed into.
A kind of smelting system of zirconium niobium metal, with embodiment 1.
Embodiment 4：
A kind of smelting process of zirconium niobium metal, comprises the following steps that：
(1) niobium bar is processed into niobium bits, several same sizes is pressed into after it is stirred with sponge zirconium, lead powder
Electrode block, is transferred along to vacuum argon filling weldering case 2, and consutrode is welded into by argon arc welding；
(2) melting is obtained final product in vacuum consumable electrode arc furnace 3；
Wherein, the mass ratio of sponge zirconium, niobium bar and lead powder is 8：1：0.2.
Preferably, the sponge zirconium in step (1) first carries out cleaning and vacuum drying treatment before the use.
Preferably, the niobium bar in step (2) first carried out electron beam furnace purification and ingot treatment before niobium bits are processed into.
A kind of smelting system of zirconium niobium metal, with embodiment 1.
Embodiment 5：
A kind of smelting process of zirconium niobium metal, comprises the following steps that：
(1) niobium bar is processed into niobium bits, several same sizes is pressed into after it is stirred with sponge zirconium, lead powder
Electrode block, is transferred along to vacuum argon filling weldering case 2, and consutrode is welded into by argon arc welding；
(2) melting is obtained final product in vacuum consumable electrode arc furnace 3；
Wherein, the mass ratio of sponge zirconium, niobium bar and lead powder is 6：1：0.25.
Preferably, the sponge zirconium in step (1) first carries out cleaning and vacuum drying treatment before the use.
Preferably, the niobium bar in step (2) first carried out electron beam furnace purification and ingot treatment before niobium bits are processed into.
A kind of smelting system of zirconium niobium metal, with embodiment 1.
Test example
Zirconium niobium metal to the gained of embodiment 1~5 has carried out Mechanics Performance Testing, the results are shown in Table 1.
The mechanical experimental results of table 1.
| Impact flexibility (J/cm2) | Tensile strength (MPa) | Elongation percentage (%) | |
| Embodiment 1 | 85 | 751 | 22 |
| Embodiment 2 | 85 | 752 | 22 |
| Embodiment 3 | 87 | 755 | 25 |
| Embodiment 4 | 87 | 755 | 26 |
| Embodiment 5 | 89 | 760 | 28 |
As it can be seen from table 1 zirconium niobium metal of the invention has preferable mechanical property.
Zirconium niobium metal to the gained of embodiment 1~5 has carried out decay resistance test, and the zirconium niobium lead of same size is closed
Gold is put into autoclave, and corrosion test is carried out in 400 DEG C/10.3MPa steam, and as a result the surrosion after investigating 230 days is shown in
Table 2.
The decay resistance test result of table 2.
| Surrosion (mg/dm2) | |
| Embodiment 1 | 108 |
| Embodiment 2 | 108 |
| Embodiment 3 | 101 |
| Embodiment 4 | 102 |
| Embodiment 5 | 97 |
From table 2 it can be seen that zirconium niobium metal of the invention decay resistance in 400 DEG C/10.3MPa steam is good.
The zirconium niobium metal of the gained of testing example 1~5 is in pressure 110MPa, 400 DEG C of temperature, under the conditions of 1000 hours
Creep, the results are shown in Table 3.
The creep results of table 3.
| Creep (%) | |
| Embodiment 1 | 1.15 |
| Embodiment 2 | 1.16 |
| Embodiment 3 | 1.12 |
| Embodiment 4 | 1.12 |
| Embodiment 5 | 1.09 |
From table 3 it can be seen that zirconium niobium metal creep resistant of the invention is good.
Although above-mentioned be described with reference to accompanying drawing to specific embodiment of the invention, not to present invention protection model
The limitation enclosed, on the basis of technical scheme, those skilled in the art do by need not paying creative work
The various modifications or deformation for going out are still within protection scope of the present invention.
Claims (8)
1. a kind of smelting process of zirconium niobium metal, it is characterised in that comprise the following steps that：
(1) niobium bar is processed into niobium bits, the electrode of several same sizes is pressed into after it is stirred with sponge zirconium, lead powder
Block, is transferred along to vacuum argon filling weldering case, and consutrode is welded into by argon arc welding；
(2) melting is obtained final product in vacuum consumable electrode arc furnace；
Wherein, the mass ratio of sponge zirconium, niobium bar and lead powder is 5~8：1：0.2~0.3.
2. a kind of smelting process of zirconium niobium metal according to claim 1, it is characterised in that the sponge in step (1)
Zirconium first carries out cleaning and vacuum drying treatment before the use.
3. a kind of smelting process of zirconium niobium metal according to claim 1, it is characterised in that the niobium bar in step (2)
Electron beam furnace purification and ingot treatment were first carried out before niobium bits are processed into.
4. a kind of corresponding smelting system of zirconium niobium metal of smelting process any one of claims 1 to 3, its feature exists
In, including zirconium niobium lead electrode block processing unit (plant), vacuum argon filling weldering case and the vacuum consumable electrode arc furnace being sequentially connected.
5. a kind of smelting system of zirconium niobium metal according to claim 4, it is characterised in that the zirconium niobium lead electrode block
Processing unit (plant) is press, and the press is connected with batch mixer, and batch mixer is provided with charging aperture, and it is filled with niobium bits processing respectively
Put, sponge zirconium feed pipe and lead powder feed pipe are connected.
6. the smelting system of a kind of zirconium niobium metal according to claim 4, it is characterised in that the niobium considers processing unit (plant) to be worth doing
It is pulverizer.
7. the smelting system of a kind of zirconium niobium metal according to claim 6, it is characterised in that the pulverizer and electronics
Beam stove is connected.
8. a kind of smelting system of zirconium niobium metal according to claim 4, it is characterised in that the sponge zirconium feed pipe
Road is connected with sponge zirconium pretreatment unit, and the sponge zirconium pretreatment unit includes service sink and vacuum drier, service sink
Top is provided with the spray head of several Air washers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710183339.3A CN106676297A (en) | 2017-03-24 | 2017-03-24 | Smelting method and system for zirconium niobium lead alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710183339.3A CN106676297A (en) | 2017-03-24 | 2017-03-24 | Smelting method and system for zirconium niobium lead alloy |
Publications (1)
| Publication Number | Publication Date |
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| CN106676297A true CN106676297A (en) | 2017-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710183339.3A Pending CN106676297A (en) | 2017-03-24 | 2017-03-24 | Smelting method and system for zirconium niobium lead alloy |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0483838A (en) * | 1990-07-26 | 1992-03-17 | Nippon Nuclear Fuel Dev Co Ltd | Zirconium alloy for constituting member of nuclear fuel aggregate |
| CN1213008A (en) * | 1998-08-25 | 1999-04-07 | 西北有色金属研究院 | Method for preparing zirconium niobium alloy |
-
2017
- 2017-03-24 CN CN201710183339.3A patent/CN106676297A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0483838A (en) * | 1990-07-26 | 1992-03-17 | Nippon Nuclear Fuel Dev Co Ltd | Zirconium alloy for constituting member of nuclear fuel aggregate |
| CN1213008A (en) * | 1998-08-25 | 1999-04-07 | 西北有色金属研究院 | Method for preparing zirconium niobium alloy |
Non-Patent Citations (1)
| Title |
|---|
| 任春燕 等: "工业条件下生产锆铌合金铸锭工艺研究", 《第十四届中国有色金属学会材料科学与工程合金加工学术研讨会文集》 * |
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Application publication date: 20170517 |