CN106756183B - A kind of preparation process that can improve nickel magnesium nodulizer quality - Google Patents
A kind of preparation process that can improve nickel magnesium nodulizer quality Download PDFInfo
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- CN106756183B CN106756183B CN201611241706.2A CN201611241706A CN106756183B CN 106756183 B CN106756183 B CN 106756183B CN 201611241706 A CN201611241706 A CN 201611241706A CN 106756183 B CN106756183 B CN 106756183B
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- nodulizer
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- fluoride
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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
- C22C1/06—Making non-ferrous alloys with the use of special agents for refining or deoxidising
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/03—Alloys based on nickel or cobalt based on nickel
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C23/00—Alloys based on magnesium
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Abstract
The invention discloses a kind of preparation process that can improve nickel magnesium nodulizer quality, the component of nickel magnesium nodulizer includes Ni, Mg, and the preparation process of nickel magnesium nodulizer carries out according to the following steps：Step 1：First calculated according to the ratio of each constituent content, configure cosolvent, the cosolvent is made of magnesium fluoride and calcirm-fluoride, i.e. binary fluxing agent；Step 2：Magnesium ingot is first put into medium-frequency induction furnace bottom, fluxing agent is covered above, first part of nickel plate is covered above cosolvent；Step 3：Second part of nickel plate is added after all being melted in stove；Step 4：Medium-frequency induction furnace is stirred, then 10 15 minutes is stood, makes upper surface of the cosolvent completely in molten ball agent, and the power of medium-frequency induction furnace is reduced to zero, is cast to again in nodulizer mould after skimming the cosolvent of bath surface.
Description
Technical field
The present invention relates to nodulizer, specifically a kind of preparation process that can improve nickel magnesium nodulizer quality.
Background technology
Nickel magnesium nodulizer is the intermediate alloy that metallic nickel and magnesium metal are obtained by high melt means, for nickel magnesium nodularization
Agent, due to 1452 DEG C of the fusing point of nickel, 650 DEG C of the fusing point of magnesium, the fusion temperature of nickel and magnesium differs greatly.Magnesium metal also has steam
Press the characteristics of high；And it is unstable under the intermetallic compound high temperature that is formed with magnesium of nickel, magnesium easily aoxidizes to form magnesia, causes to close
Bronze, reduces magnesium recovery rate of iron.
The content of control magnesia is an important indicator of nodulizer production.Magnesia belongs to invalid in nodulizer
Magnesium, its content is higher, and spheroidization ability is lower.
The content of the invention
The technical problems to be solved by the invention are, the shortcomings that for the above prior art, propose that one kind can improve nickel magnesium
The preparation process of nodulizer quality, can reduce the content of magnesia in nodulizer, improve the degree of purity of nickel magnesium nodulizer.
In order to solve the above-mentioned technical problem, the technical scheme is that being accomplished by the following way：One kind can improve
The preparation process of nickel magnesium nodulizer quality, the component of nickel magnesium nodulizer include nickel, magnesium, and the preparation process of nickel magnesium nodulizer is by following
Step carries out：
Step 1：First calculated according to the ratio of each constituent content, configure fluxing agent, fluxing agent is by magnesium fluoride and fluorine
Change calcium to form, i.e. binary fluxing agent, the content of each component is by mass percentage in fluxing agent：Magnesium fluoride：48-55%, it is remaining
Measure as calcirm-fluoride, weight=2% × nickel magnesium nodulizer weight of fluxing agent；
When the content of magnesium in nickel magnesium nodulizer is in 10-30%, nickel plate is divided into three parts, first part, second part, the 3rd part
It is the 1/3 of nickel plate gross weight；When the content of magnesium in nickel magnesium nodulizer is 50%, nickel plate is divided into four parts, first part is nickel plate
The 1/3 of gross weight, remaining three parts divide equally nickel plate gross weight 2/3；When the content of magnesium in nickel magnesium nodulizer is more than 50 percent
During scope less than or equal to 70 percent, nickel plate is divided into five parts, first part is the 1/3 of nickel plate gross weight, remaining four parts
Respectively the 2/3 of nickel plate gross weight；
Step 2：Magnesium ingot is first put into medium-frequency induction furnace bottom, fluxing agent is covered above, first is covered above fluxing agent
Part nickel plate, then medium-frequency induction furnace Power Control 948-952 DEG C was heated at 8-12 minute, insulation 3-5 in 100-150kW
Minute；
Step 3：Second part of nickel plate is added after all being melted in stove, 1150-1190 was heated within 20-25 minutes
DEG C, a nickel plate then was added untill nickel plate is added at interval of 3-5 minutes, then by the power control of medium-frequency induction furnace
Make in 120-200kW, medium-frequency induction furnace temperature is increased to 1250-1390 DEG C within 8-12 minutes, then until nickel plate
All fusings；
Step 4：Medium-frequency induction furnace is stirred, makes upper surface of the fluxing agent completely in molten ball agent, Ran Houjing
Put 10-15 minutes, and the power of medium-frequency induction furnace is reduced to zero, nodularization is cast to again after skimming the fluxing agent of bath surface
In agent mould.
In this way, electroslag remelting is applied to by the fluxing agent that magnesium fluoride and calcirm-fluoride are formed by certain component more, applied to nickel
The melting of magnesium nodulizer is one of feature of the technical program, the binary fluxing agent formed using magnesium fluoride and calcirm-fluoride, control
The component of two kinds of fluxing agents reduces smelting temperature, so as to reduce the fusing point of nickel, power consumption is greatly reduced；Nickel melts
1452 DEG C of point, 650 DEG C of the fusing point of magnesium.Originally first fusing nickel metal furnace temperature will reach 1460 DEG C, the technical program highest heating temperature
Spend for 1250-1390 DEG C, 70-210 degree is reduced than original smelting temperature.Middle frequency furnace often reduces 100 degree of temperature rise and can save
Electric energy 50KWH, melting power consumption reduce 50-100KWH/ tons.By electric 0.80 yuan of calculating of average unit price is often spent, nickel magnesium nodularization is produced per year
200 tons of agent can save fund 8000-16000 members, carry out gradation addition according to how many pairs of nickel plates of content of magnesium, can not only improve nickel
The burn-off rate of plate, saves the time, and can save energy consumption, reduces cost；
After fluxing agent, since fluxing agent is covered in the upper surface of molten ball agent, the oxidation and steaming of metal are blocked
Hair, is greatly lowered the burn out rate of metal, improves recovery rate of iron, 97% is brought up to from original 90%.Per 1 ton of nickel of melting
Magnesium nodulizer can save raw metal 5%, and 360 tons of meters of production and marketing nickel magnesium nodulizer, can save 97.2 ten thousand yuan of fund every year per year；
The content of magnesia is reduced, the content of magnesia is reduced to 0.2% from original 2%；
Since fluxing agent can reduce the fusing point of magnesia, so being frequently used for the melting of magnesium alloy.Melting nickel magnesium nodularization
Fluxing agent is added during agent reduces the fusing point of magnesia, and the upper surface of nodulizer melt is floated to fluxing agent, reduces ball
The content of magnesia in agent；Fluxing agent floats in the upper surface of molten ball agent, has obstructed melt and air contact, reduces
The generation of magnesia；
Other entrained components are made to float to bath surface, standing furnace water 10-15min before coming out of the stove, skims the floating of bath surface
It is cast to again in nodulizer mould after slag, obtains the nickel magnesium nodulizer of high cleanliness；Reduce smoke contamination, environmental protection；The skill
Art has filled up domestic blank, has broken the technical monopoly of foreign countries, contributes for the development of new energy.
The technical solution that further limits of the present invention is：
The foregoing preparation process that can improve nickel magnesium nodulizer quality, the component of nickel magnesium nodulizer are by mass percentage：
Ni：30-90%, surplus Mg.
The foregoing preparation process that can improve nickel magnesium nodulizer quality, the component of nickel magnesium nodulizer are by mass percentage：
Ni：30%, surplus Mg, the content of each component is by mass percentage in fluxing agent：Magnesium fluoride：48%, surplus is fluorination
Calcium.
The foregoing preparation process that can improve nickel magnesium nodulizer quality, the component of nickel magnesium nodulizer are by mass percentage：
Ni：90%, surplus Mg, the content of each component is by mass percentage in fluxing agent：Magnesium fluoride：55%, surplus is fluorination
Calcium.
The foregoing preparation process that can improve nickel magnesium nodulizer quality, the component of nickel magnesium nodulizer are by mass percentage：
Ni：50%, surplus Mg, the content of each component is by mass percentage in fluxing agent：Magnesium fluoride：51%, surplus is fluorination
Calcium.
The beneficial effects of the invention are as follows：The fluxing agent being made of magnesium fluoride and calcirm-fluoride by certain component is applied to electroslag more
Remelting, the melting applied to nickel magnesium nodulizer are one of features of the technical program, two formed using magnesium fluoride and calcirm-fluoride
First fluxing agent, controlling the component of two kinds of fluxing agents reduces smelting temperature, so as to reduce the fusing point of nickel, electricity is greatly reduced
Can consumption；1452 DEG C of the fusing point of nickel, 650 DEG C of the fusing point of magnesium.Originally first fusing nickel metal furnace temperature will reach 1460 DEG C, this technology side
Case maximum heating temperature is 1250-1390 DEG C, and 70-210 degree is reduced than original smelting temperature.Middle frequency furnace often reduces temperature rise
100 degree can save electric energy 50KWH, and melting power consumption reduces 50-100KWH/ tons.Calculated by electric 0.80 yuan of average unit price is often spent, year
200 tons of production nickel magnesium nodulizer can save fund 8000-16000 members, carry out gradation addition according to how many pairs of nickel plates of content of magnesium, no
It is only capable of improving the burn-off rate of nickel plate, saves the time, and energy consumption can be saved, reduces cost；
After fluxing agent, since fluxing agent is covered in the upper surface of molten ball agent, the oxidation and steaming of metal are blocked
Hair, is greatly lowered the burn out rate of metal, improves recovery rate of iron, 97% is brought up to from original 90%.Per 1 ton of nickel of melting
Magnesium nodulizer can save raw metal 5%, and 360 tons of meters of production and marketing nickel magnesium nodulizer, can save 97.2 ten thousand yuan of fund every year per year；
The content of magnesia is reduced, the content of magnesia is reduced to 0.2% from original 2%；
Since fluxing agent can reduce the fusing point of magnesia, so being frequently used for the melting of magnesium alloy.Melting nickel magnesium nodularization
Fluxing agent is added during agent reduces the fusing point of magnesia, and the upper surface of nodulizer melt is floated to fluxing agent, reduces ball
The content of magnesia in agent；Fluxing agent floats in the upper surface of molten ball agent, has obstructed melt and air contact, reduces
The generation of magnesia；
Other entrained components are made to float to bath surface, standing furnace water 10-15min before coming out of the stove, skims the floating of bath surface
It is cast to again in nodulizer mould after slag, obtains the nickel magnesium nodulizer of high cleanliness；Reduce smoke contamination, environmental protection；The skill
Art has filled up domestic blank, has broken the technical monopoly of foreign countries, contributes for the development of new energy.
Embodiment
The present invention is described in further detail below：
Embodiment 1
A kind of preparation process that can improve nickel magnesium nodulizer quality provided in this embodiment, the component of nickel magnesium nodulizer include
Nickel, magnesium, the component of nickel magnesium nodulizer are by mass percentage：Ni：30%, surplus Mg, the preparation process of nickel magnesium nodulizer presses
Following steps carry out：
Step 1：First calculated according to the ratio of each constituent content, configure fluxing agent, fluxing agent is by magnesium fluoride and fluorine
Change calcium to form, i.e. binary fluxing agent, the content of each component is by mass percentage in fluxing agent：Magnesium fluoride：48%, surplus is
Calcirm-fluoride, weight=2% × nickel magnesium nodulizer weight of fluxing agent；
Nickel plate is divided into five parts, first part is the 1/3 of nickel plate gross weight, remaining four parts divide equally nickel plate gross weight 2/3；
Step 2：Magnesium ingot is first put into medium-frequency induction furnace bottom, fluxing agent is covered above, first is covered above fluxing agent
Part nickel plate, then medium-frequency induction furnace Power Control 948 DEG C were heated at 8 minutes, keeps the temperature 3 minutes in 100kW；
Step 3：Second part of nickel plate is added after all being melted in stove, 1150 DEG C were heated within 20 minutes, then
A nickel plate was added untill nickel plate is added at interval of 3 minutes, and then the Power Control of medium-frequency induction furnace exists
120kW, 1250 DEG C were increased within 8 minutes by medium-frequency induction furnace temperature, then until nickel plate all melts；
Step 4：Medium-frequency induction furnace is stirred, makes upper surface of the fluxing agent completely in molten ball agent, Ran Houjing
Put 10 minutes, and the power of medium-frequency induction furnace is reduced to zero, nodulizer is cast to again after skimming the fluxing agent of bath surface
In mould.
Embodiment 2
A kind of preparation process that can improve nickel magnesium nodulizer quality provided in this embodiment, the component of nickel magnesium nodulizer include
Nickel, magnesium, the component of nickel magnesium nodulizer are by mass percentage：Ni：90%, surplus Mg, the preparation process of nickel magnesium nodulizer presses
Following steps carry out：
Step 1：First calculated according to the ratio of each constituent content, configure fluxing agent, fluxing agent is by magnesium fluoride and fluorine
Change calcium to form, i.e. binary fluxing agent, the content of each component is by mass percentage in fluxing agent：Magnesium fluoride：55%, surplus is
Calcirm-fluoride, weight=2% × nickel magnesium nodulizer weight of fluxing agent；
Nickel plate is divided into three parts, first part, second part, the 3rd part is the 1/3 of nickel plate gross weight；
Step 2：Magnesium ingot is first put into medium-frequency induction furnace bottom, fluxing agent is covered above, first is covered above fluxing agent
Part nickel plate, then medium-frequency induction furnace Power Control 952 DEG C were heated at 12 minutes, keeps the temperature 5 minutes in 150kW；
Step 3：Second part of nickel plate is added after all being melted in stove, 1190 DEG C were heated within 25 minutes, then
A nickel plate was added at interval of 5 minutes, then by the Power Control of medium-frequency induction furnace in 200kW, the general within 12 minutes
Medium-frequency induction furnace temperature increases to 1390 DEG C, then until nickel plate all melts；
Step 4：Medium-frequency induction furnace is stirred, makes upper surface of the fluxing agent completely in molten ball agent, Ran Houjing
Put 15 minutes, and the power of medium-frequency induction furnace is reduced to zero, nodulizer is cast to again after skimming the fluxing agent of bath surface
In mould.
Embodiment 3
A kind of preparation process that can improve nickel magnesium nodulizer quality provided in this embodiment, the component of nickel magnesium nodulizer include
Nickel, magnesium, the component of nickel magnesium nodulizer are by mass percentage：Ni：50%, surplus Mg, the preparation process of nickel magnesium nodulizer presses
Following steps carry out：
Step 1：First calculated according to the ratio of each constituent content, configure fluxing agent, fluxing agent is by magnesium fluoride and fluorine
Change calcium to form, i.e. binary fluxing agent, the content of each component is by mass percentage in fluxing agent：Magnesium fluoride：51%, surplus is
Calcirm-fluoride, weight=2% × nickel magnesium nodulizer weight of fluxing agent；
Nickel plate is divided into four parts, first part is the 1/3 of nickel plate gross weight, remaining three parts divide equally nickel plate gross weight 2/3；
Step 2：Magnesium ingot is first put into medium-frequency induction furnace bottom, fluxing agent is covered above, first is covered above fluxing agent
Part nickel plate, then medium-frequency induction furnace Power Control 950 DEG C were heated at 10 minutes, keeps the temperature 4 minutes in 120kW；
Step 3：Second part of nickel plate is added after all being melted in stove, 1160 DEG C were heated within 23 minutes, then
A nickel plate was added untill nickel plate is added at interval of 4 minutes, and then the Power Control of medium-frequency induction furnace exists
180kW, 1350 DEG C were increased within 11 minutes by medium-frequency induction furnace temperature, then until nickel plate all melts；
Step 4：Medium-frequency induction furnace is stirred, makes upper surface of the fluxing agent completely in molten ball agent, Ran Houjing
Put 13 minutes, and the power of medium-frequency induction furnace is reduced to zero, nodulizer is cast to again after skimming the fluxing agent of bath surface
In mould.
Above example is merely illustrative of the invention's technical idea, it is impossible to protection scope of the present invention is limited with this, it is every
According to technological thought proposed by the present invention, any change done on the basis of technical solution, each falls within the scope of the present invention
Within.
Claims (5)
1. a kind of preparation process that can improve nickel magnesium nodulizer quality, the component of the nickel magnesium nodulizer includes nickel, magnesium, its feature
It is：The preparation process of the nickel magnesium nodulizer carries out according to the following steps：
Step 1：First calculated according to the ratio of each constituent content, configure fluxing agent, the fluxing agent is by magnesium fluoride and fluorine
Change calcium to form, i.e. binary fluxing agent, the content of each component is by mass percentage in the fluxing agent：Magnesium fluoride：48-
55%, surplus is calcirm-fluoride, weight=2% × nickel magnesium nodulizer weight of the fluxing agent；
When the content of magnesium in nickel magnesium nodulizer is in 10-30%, nickel plate is divided into three parts, first part, second part, the 3rd part is
The 1/3 of nickel plate gross weight；When the content of magnesium in nickel magnesium nodulizer is 50%, nickel plate is divided into four parts, first part is nickel plate gross weight
1/3, remaining three parts divide equally nickel plate gross weight 2/3；When the content of magnesium in nickel magnesium nodulizer is less than more than 50 percent
Or during scope equal to 70 percent, nickel plate is divided into five parts, first part is the 1/3 of nickel plate gross weight, and remaining four parts are divided equally
The 2/3 of nickel plate gross weight；
Step 2：Magnesium ingot is first put into medium-frequency induction furnace bottom, fluxing agent is covered above, first part of nickel is covered above fluxing agent
Plate, then medium-frequency induction furnace Power Control 948-952 DEG C was heated at 8-12 minutes in 100-150kW, keep the temperature 3-5 minutes；
Step 3：Second part of nickel plate is added after all being melted in stove, 1150-1190 DEG C was heated within 20-25 minutes,
Then a nickel plate was added untill nickel plate is added at interval of 3-5 minutes, then by the Power Control of medium-frequency induction furnace
In 120-200kW, medium-frequency induction furnace temperature is increased to 1250-1390 DEG C within 8-12 minutes, then until nickel plate is complete
Melt in portion；
Step 4：Medium-frequency induction furnace is stirred, makes upper surface of the fluxing agent completely in molten ball agent, then stands 10-
15 minutes, and the power of medium-frequency induction furnace is reduced to zero, nodulizer mould is cast to again after skimming the fluxing agent of bath surface
In tool.
2. the preparation process according to claim 1 that nickel magnesium nodulizer quality can be improved, it is characterised in that：The nickel magnesium ball
The component of agent is by mass percentage：Ni：30-90%, surplus Mg.
3. the preparation process according to claim 2 that nickel magnesium nodulizer quality can be improved, it is characterised in that：The nickel magnesium ball
The component of agent is by mass percentage：Ni：30%, surplus Mg, the content of each component presses quality hundred in the fluxing agent
Point ratio is：Magnesium fluoride：48%, surplus is calcirm-fluoride.
4. the preparation process according to claim 2 that nickel magnesium nodulizer quality can be improved, it is characterised in that：The nickel magnesium ball
The component of agent is by mass percentage：Ni：90%, surplus Mg, the content of each component presses quality hundred in the fluxing agent
Point ratio is：Magnesium fluoride：55%, surplus is calcirm-fluoride.
5. the preparation process according to claim 2 that nickel magnesium nodulizer quality can be improved, it is characterised in that：The nickel magnesium ball
The component of agent is by mass percentage：Ni：50%, surplus Mg, the content of each component presses quality hundred in the fluxing agent
Point ratio is：Magnesium fluoride：51%, surplus is calcirm-fluoride.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108048616A (en) * | 2017-12-13 | 2018-05-18 | 南京浦江合金材料股份有限公司 | A kind of New Nodularizer and its preparation process for casting roll |
| CN108220524A (en) * | 2018-01-16 | 2018-06-29 | 南京浦江合金材料股份有限公司 | A kind of production technology using electronic teapot-type tundish purification nickel magnesium nodulizer |
| CN115261652A (en) * | 2022-08-01 | 2022-11-01 | 南京浦江合金材料股份有限公司 | High-purity nickel-magnesium alloy and preparation process thereof |
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| CN101096731A (en) * | 2006-06-28 | 2008-01-02 | 宝山钢铁股份有限公司 | Nickel magnesium alloy and smelting method thereof |
| CN103866174A (en) * | 2013-06-06 | 2014-06-18 | 陕西钛普稀有金属材料有限公司 | High-strength Ni-Mo-Mg ternary alloy and preparation process thereof |
| CN104611584A (en) * | 2014-12-25 | 2015-05-13 | 芜湖市民泰铜业有限责任公司 | Smelting method of copper and magnesium intermediate alloy |
| CN104674060A (en) * | 2013-11-30 | 2015-06-03 | 大连融德特种材料有限公司 | Preparation method of nick-magnesium alloy |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101096731A (en) * | 2006-06-28 | 2008-01-02 | 宝山钢铁股份有限公司 | Nickel magnesium alloy and smelting method thereof |
| CN103866174A (en) * | 2013-06-06 | 2014-06-18 | 陕西钛普稀有金属材料有限公司 | High-strength Ni-Mo-Mg ternary alloy and preparation process thereof |
| CN104674060A (en) * | 2013-11-30 | 2015-06-03 | 大连融德特种材料有限公司 | Preparation method of nick-magnesium alloy |
| CN104611584A (en) * | 2014-12-25 | 2015-05-13 | 芜湖市民泰铜业有限责任公司 | Smelting method of copper and magnesium intermediate alloy |
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Denomination of invention: Preparing technology capable of improving quality of nickel-magnesium nodulizing agent Effective date of registration: 20180814 Granted publication date: 20180420 Pledgee: Bank of Nanjing, Limited by Share Ltd, Nanjing branch Pledgor: Nanjing Pujiang alloy materials Limited by Share Ltd Registration number: 2018320000132 |
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