CN101386950A - Nickel iron intermediate alloy and melting and purification treatment method thereof - Google Patents
Nickel iron intermediate alloy and melting and purification treatment method thereof Download PDFInfo
- Publication number
- CN101386950A CN101386950A CNA2008100689428A CN200810068942A CN101386950A CN 101386950 A CN101386950 A CN 101386950A CN A2008100689428 A CNA2008100689428 A CN A2008100689428A CN 200810068942 A CN200810068942 A CN 200810068942A CN 101386950 A CN101386950 A CN 101386950A
- Authority
- CN
- China
- Prior art keywords
- contain
- content
- amount
- alloy
- ferronickel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a smelting and purifying treatment method for nickel-iron intermediate alloys. The method comprises the following technological steps in order to obtain the nickel-iron intermediate alloy with uniform compositions and high purity: a waste alloy material which is formed by waste ferronickel, waste nickel materials and waste iron materials after mixture undergoes charging and smelting, slagging and desulfurization, addition of a deoxidant for deoxidization, argon stirring, manufacture of novel slag through reduction refining and deoxidization, powder spraying and dephosphorization, adjustment of the compositions of the alloy, and discharging and casting. The invention also discloses series nickel-iron intermediate alloys which are manufactured by the method, namely SD-Ni12, SD-Ni13, SD-Ni14, SD-Ni15, SD-Ni16, SD-Ni17 and SD-Ni18. The alloys are pure, have uniform compositions, and are suitable to be used for smelting high-quality alloy materials containing nickel and iron.
Description
Technical field
The present invention relates to a kind of melting and purifying treatment method of alloy, particularly related to the method for carrying out purifying treatment when adopting medium-frequency induction furnace melting ferronickel master alloy.
The invention still further relates to a kind of aforesaid method melting and purifying that adopts and handled the higher ferronickel master alloy of all even purity of composition that the back obtains.
Background technology
The ferronickel master alloy is mainly used in the metallic substance that contains nickel and iron and uses as matrix alloy and additive in smelting process, the ferronickel master alloy required chemical ingredients is even, segregation is little, there is not visible nonmetal inclusion, gas content is low, and foreign matter content must satisfy the requirement of institute's metal smelting material.The ferronickel master alloy that adopts useless ferronickel, waste nickel material, scrap iron material etc. to produce generally adopts medium-frequency induction furnace to come melting production.
On May 30th, 2007, disclosed Chinese invention patent specification sheets CN1970807A disclosed a kind of frangible Rhometal, this specification sheets also discloses the melting technology of this alloy, described melting technology is that various recovery nickel and nickel plate are put into the scum silica frost of removing alloy liquid surface after melting in the induction furnace with steel cuttings, adds ferromanganese or ferro-silicon again and continues that composition is adjusted in the fusing back and cast obtains Rhometal.This technology is not owing to carry out the refining purifying treatment to alloy liquid, the alloy composition that causes melting to be come out is inhomogeneous, impurity is sulphur particularly, detrimental impurity content such as phosphorus are higher, gas in the alloy is difficult for eliminating etc., give and follow-uply to produce the Rhometal material with the ferronickel master alloy as matrix alloy or additive and caused very big obstacle, even can not produce the Rhometal material that composition and purity are all had relatively high expectations with the master alloy of matter time, the Rhometal that for example adopts this method to smelt is not suitable for the smelting precision instrument, the widely used low heat expansion property Rhometals such as shadow mask of colour television set or computer monitor, its range of application is restricted, is unfavorable for the recycling of waste and old material.
On May 30th, 2007, disclosed Chinese invention patent specification sheets CN1970807A disclosed a kind of method of electrosmelting ferronickel, this method is to use nickel oxide ore as starting material, nickel oxide ore is carried out breeze behind the crushing and screening and coke powder mix carry out sintering and obtain the sintering nugget, again the sintering nugget is mixed the back with coke, lime, fluorite and in electric furnace, smelt and obtaining ferronickel.The ferronickel that adopts this method to smelt does not take corresponding purifying treatment measure, the ferronickel of smelting to have the foreign matter content problem of higher equally in smelting process because the impurity that ore brings is more; And the ferronickel that adopts this method to smelt is not high owing to purity, is not suitable for equally and smelts above-mentioned low heat expansion property Rhometal, and its range of application is restricted.
Summary of the invention
First technical problem that the present invention will solve provides a kind of waste material that utilizes and carries out the melting and purifying processing to obtain the method for ferronickel master alloy, even, the high purity of the ferronickel master alloy composition that adopts this method to make in medium-frequency induction furnace.
Second technical problem that the present invention will solve provides a kind of aforesaid method melting and purifying that adopts and handles the ferronickel master alloy that the back obtains, and this alloy is pure, composition is even.
For solving above-mentioned first technical problem, the melting and purification treatment method of ferronickel master alloy of the present invention, its technical scheme may further comprise the steps:
The surplus or excess alloy material that the useless ferronickel that cleans up, waste nickel material, scrap iron material are formed is mixed with and contains following chemical ingredients (weight percent): ni content is 10%～18%, C content≤3.0%, si content≤2.0%, contain Mn amount≤3%, contain Cr amount＜2%, contain Cu amount＜0.5%, contain Co amount＜0.5%, P content≤0.1%, contain S amount≤0.1%, surplus is Fe;
The above-mentioned alloyed scrap for preparing is put in the alkaline crucible of medium-frequency induction furnace, described crucible bottom is covered with the end slag that accounts for charging weight 2%～5%, the consisting of of slag of the described end: lime 70%～80%, fluorite 20%～30%;
Send more than the electrically heated alloyed scrap to 1500 ℃, alloyed scrap is melted and bath occurs in crucible bottom, covers on the alloy liquid level after end slag is melted;
After alloyed scrap has melted, add Si, Mn in the alloy liquid and carry out pre-deoxidation, the content of stokehold sampling analysis Ni, C, Si, Mn, Cr, Cu, Co, S, P;
Adopt the pressure of 0.1MPa～0.2MPa the alloy liquid in the stove to be carried out the Argon stirring by gas permeable brick from above-mentioned crucible bottom;
Remove the oxidation sludge on alloy liquid surface, on the alloy liquid level, add Al
2O
3-SiO
2-CaO makes new slag, promote alloy liquid temp to 1550 ℃～1600 ℃, add silicon calcium powder and ferrosilicon powder formation white slag layer and covering alloy liquid to new slag surface and carried out diffusive deoxidation in 25～35 minutes, and then in alloy liquid, add the bulk silicon Ca deoxidizer account for alloy liquid weight 0.2%～0.5% and carry out bulk deoxidation, the content of Ni, the C of the molten final proof of stokehold sampling analysis, Si, Mn, Cr, Cu, Co, S, P;
Adopt dusting device under the pressure effect of 0.1MPa～0.2MPa the CaC of granularity less than 0.5mm
2Pulvis in the steel pipe that inserts the alloy liquid degree of depth 100～120mm to alloy liquid powder dephosphorization;
After adjusting chemical element in the alloy liquid and reaching specified chemical composition, residue adjustment, heat up, coming out of the stove pours into alloy pig.
For solving above-mentioned second technical problem, it can be any in the following alloy that employing aforesaid method melting and purifying of the present invention is handled ferronickel master alloy that the back obtains:
SD-Ni12 ferronickel master alloy, it is characterized in that, the chemical ingredients of this alloy (weight percent) is: ni content 12% ± 0.5%, C content≤1.5%, si content≤1.5%, contain Mn amount≤2%, P content＜0.02%, contain S amount＜0.02%, contain Cr amount≤2%, contain Cu≤0.2%, contain Co amount＜0.3%, surplus is Fe.
SD-Ni13 ferronickel master alloy, it is characterized in that, the chemical ingredients of this alloy (weight percent) is: ni content 13% ± 0.5%, C content≤1.5%, si content≤1.5%, contain Mn amount≤2%, P content＜0.02%, contain S amount＜0.02%, contain Cr amount≤2%, contain Cu≤0.2%, contain Co amount＜0.3%, surplus is Fe.
SD-Ni14 ferronickel master alloy, it is characterized in that, the chemical ingredients of this alloy (weight percent) is: ni content 14% ± 0.5%, C content≤1.5%, si content≤1.5%, contain Mn amount≤2%, P content＜0.02%, contain S amount＜0.02%, contain Cr amount≤2%, contain Cu≤0.2%, contain Co amount＜0.3%, surplus is Fe.
SD-Ni15 ferronickel master alloy, it is characterized in that, the chemical ingredients of this alloy (weight percent) is: ni content 15% ± 0.5%, C content≤1.5%, si content≤1.5%, contain Mn amount≤2%, P content＜0.02%, contain S amount＜0.02%, contain Cr amount≤2%, contain Cu≤0.2%, contain Co amount＜0.3%, surplus is Fe.
SD-Ni16 ferronickel master alloy, it is characterized in that, the chemical ingredients of this alloy (weight percent) is: ni content 16% ± 0.5%, C content≤1.5%, si content≤1.5%, contain Mn amount≤2%, P content＜0.02%, contain S amount＜0.02%, contain Cr amount≤2%, contain Cu≤0.2%, contain Co amount＜0.3%, surplus is Fe.
SD-Ni17 ferronickel master alloy, it is characterized in that, the chemical ingredients of this alloy (weight percent) is: ni content 17% ± 0.5%, C content≤1.5%, si content≤1.5%, contain Mn amount≤2%, P content＜0.02%, contain S amount＜0.02%, contain Cr amount≤2%, contain Cu≤0.2%, contain Co amount＜0.3%, surplus is Fe.
SD-Ni18 ferronickel master alloy, it is characterized in that, the chemical ingredients of this alloy (weight percent) is: ni content 18% ± 0.5%, C content≤1.5%, si content≤1.5%, contain Mn amount≤2%, P content＜0.02%, contain S amount＜0.02%, contain Cr amount≤2%, contain Cu≤0.2%, contain Co amount＜0.3%, surplus is Fe.
Compared with prior art, beneficial effect of the present invention is as follows:
The melting and purification treatment method of ferronickel master alloy of the present invention, the surplus or excess alloy material that useless ferronickel, waste nickel material, scrap iron material are formed is put into together and is carried out melting in the medium-frequency induction furnace, by the slag making desulfurization, the killing deoxidation, Argon stirs carries out detrimental impurity in deoxidation, the degassing (hydrogen), decarburization and the removal alloy liquid to alloy liquid, reduction refining is made new slag deoxidation, measures such as powder dephosphorization, can obtain the higher ferronickel master alloy of all even purity of composition, help the recycling of waste and old material, economize on resources.Adopt the method for the invention melting and purifying to handle the serial ferronickel master alloy that the back obtains, because alloy is pure, composition is even, can satisfy the various high quality requirements that contain the alloy material of ferronickel to the ferronickel master alloy, be particularly useful for smelting the widely used low heat expansion property Rhometals such as shadow mask of precision instrument, colour television set or computer monitor, expanded the range of application of this master alloy.
Description of drawings
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail.
Fig. 1 is the structure diagram that is used to implement induction melting purifying treatment stove of the present invention.
Fig. 2 is the process flow sheet that ferronickel master alloy melting and purifying of the present invention is handled.
Embodiment
Fig. 1 shows the structure that is used to implement induction melting purifying treatment stove of the present invention, and this stove mainly is made up of intermediate frequency furnace 10 and dusting device 20.
Described intermediate frequency furnace 10 mainly is made up of crucible 11, furnace shell 12, ruhmkorff coil 16 and variable-frequency power sources 17.Hollow brick cup 13 is equipped with at place, mid-way at this intermediate frequency furnace diapire, and the end face of this brick cup 13 is concordant with the furnace chamber bottom surface of intermediate frequency furnace 10, and the bottom surface of this brick cup 13 is concordant with the furnace shell of intermediate frequency furnace 10 bottoms; Gas permeable brick 14 is housed in the hollow hole of brick cup 13, the end face of this gas permeable brick 14 exceeds a bit of distance in furnace chamber bottom surface of intermediate frequency furnace 10, the bottom surface of this gas permeable brick 14 exceeds a bit of distance of bottom furnace shell of intermediate frequency furnace 10, has a ladder blind hole 18 that is used to hold gas in the bottom of this gas permeable brick 14; On the bottom of intermediate frequency furnace 10 furnace shell 12, support 15 is housed and is used to support gas permeable brick 14.
Described dusting device 20 mainly is made up of powder spraying pot 21, dust distributor 23, ball valve 24, air supply source 28 and steel pipe 29.In powder spraying pot 21, CaC is housed
2Pulvis 22 is equipped with tensimeter 27 and safety valve 26 in the middle and upper part of this powder spraying pot 21; Conical surface place is connected to control valve 25 by gas pipe line in the middle and lower part of this powder spraying pot 21, be connected by ball valve 24 and dust distributor 23 at the bottom of this powder spraying pot 21 jar mouth, the pneumatic tube that is connected on dust distributor 23 left ends is connected on the air supply source 28 after converging with the pneumatic tube that is connected on control valve 25 left ends, the right-hand member jet hole of dust distributor 23 is connected together by gas pipe line and steel pipe 29, when molten alloy, steel pipe 29 can be inserted in the interior alloy liquid of intermediate frequency furnace 10 burner hearths.
Be connected to gas pipe line and the tipping of this gas pipe line on air supply source 28 in the sealing of bottom surface blind hole 18 places of the gas permeable brick 14 of intermediate frequency furnace 10 bottoms, air supply source 28 can be given powder spraying pot 21 or gas permeable brick 14 air feed separately by trip switch, also can give powder spraying pot 21 and gas permeable brick 14 air feed simultaneously, various technology is to the requirement of air feed when making things convenient for refined alloy liquid.
Adopt technological process that above-mentioned stove melting and purifying handles ferronickel master alloy of the present invention as shown in Figure 2, its operation steps is as follows:
Step 1: the batching of alloyed scrap.The surplus or excess alloy material that the useless ferronickel that cleans up, waste nickel material, scrap iron material are formed makes its chemical Composition Control at following scope (weight percent) through preparation and detection: ni content is 10%～18%, C content≤3.0%, si content≤2.0%, contain Mn amount≤3%, contain Cr amount＜2%, contain Cu amount＜0.5%, contain Co amount＜0.5%, P content≤0.1%, contain S amount≤0.1%, surplus is Fe.
Step 2: the shove charge of alloyed scrap.Load onto the end slag that accounts for charging weight 2%～5% earlier in the alkaline crucible bottom of medium-frequency induction furnace, consisting of of end slag: lime 70%～80%, fluorite 20%～30%, again above-mentioned alloyed scrap is put in the crucible, when filling with substance, the useless ferronickel of dress, waste nickel material refill the scrap iron material earlier.
Step 3: the fusing of alloyed scrap.Send the electrically heated alloyed scrap to medium-frequency induction furnace, when alloyed scrap is heated to more than 1500 ℃ and after after a while (weight according to furnace charge is determined), alloyed scrap all is melted and becomes alloy liquid.In the process of heating,, when bath appears in crucible bottom, cover after end slag is melted and protect alloying element not oxidized on the alloy liquid level along with the fusing of alloyed scrap.
The desulphurization reaction of melting period is as follows:
1. sulphur dissolves in slag in the alloy liquid: [FeS]====(FeS)
2. (FeS) and (CaO) interaction in the slag forms the sulfurated lime that is insoluble to alloy liquid:
(FeS)+(CaO)＝＝＝＝(FeO)+(CaS)
The slag that will contain CaS after 3. melting is clearly removed, and realizes the desulfurization of alloy liquid.
In melting period, elements such as the C in the alloy liquid, Si, P, Ni, Cr, Cu, Co will be by the part indirect oxidation.
Step 4: sampling analysis.Treat alloy liquid liquid level calmness, when no bubble is overflowed from alloy liquid is inner, alloyed scrap is all melted, at this moment add Si, Mn in the alloy liquid and carry out pre-deoxidation, whether and it is molten clear to stir alloy fluid inspection furnace bottom, and the content of on-the-spot sample analysis Ni, C, Si, Mn, Cr, Cu, Co, S, P is carried out in sampling then.
Step 5: Argon stirs.Open air supply source 28 during Argon and give the trip switch of gas permeable brick 14 air feed, argon gas in the air supply source 28 enter into along gas pipe line in the blind hole 18 of gas permeable brick 14 and in gas permeable brick 14 enters into alloy liquid in the intermediate frequency furnace 10 alloy liquid are stirred refining, and the argon pressure during Argon in the gas pipe line is 0.1MPa～0.2MPa.Stir the effect that can further play the detrimental impurity such as lead in deoxidation, the degassing (hydrogen), decarburization and the removal alloy liquid to alloy liquid by Argon.
Step 6: reduction refining.Remove melting period at the oxidation sludge that alloy liquid surface forms, on the alloy liquid level, add Al
2O
3-SiO
2-CaO makes new slag, promotes 50 ℃～100 ℃ of alloy liquid temps, makes melting change the diffusive deoxidation stage over to when promptly the alloy liquid temp reaches 1550 ℃～1600 ℃.
1. diffusive deoxidation: add silicon calcium powder and ferrosilicon powder to new slag surface, reduce (FeO) content in the slag rapidly, slag is white in color.Alloy liquid kept under the white slag layer 25～35 minutes, and alloy liquid oxygen level descends and reaches the deoxidation purpose.
2. bulk deoxidation: after diffusive deoxidation, add blocky silico-calcium reductor and carry out bulk deoxidation in alloy liquid, the add-on of reductor is 0.2%～0.5% of an alloy liquid weight.
During refining, carry out the content of on-the-spot sample analysis Ni, C, Si, Mn, Cr, Cu, Co, S, P and send the analytical results that melts final proof, according to this result, smelting changes the alloying operation over to.
Step 7: powder dephosphorization.When dusting, open air supply source 28 and give the trip switch of jet jar of 21 air feed, argon gas in the air supply source 28 enters in the powder spraying pot 21 along the gas pipe line of control valve 25, enters in the dust distributor 23 CaC under the pressure effect of 0.1MPa～0.2MPa along the gas pipe line of dust distributor 23 left ends
2Pulvis 22 (granularity is less than 0.5mm) enters in the dust distributor 23 by ball valve 24 and (degree of depth of inserting alloy liquid is 100～120mm) to spray to the interior alloy liquid of intermediate frequency furnace 10 by steel pipe 29 along the gas pipe line of its right-hand member, when dusting, adding a cover the asbestos plate (not shown) on the stove to prevent that the molten steel splash is outside stove.
The decomposition step of powder dephosphorization is as follows:
1. spray into the CaC in the alloy liquid
2Carry out high temperature (1550 ℃～1600 ℃) decomposition reaction:
[CaC
2]＝＝＝＝{Ca}+2[C]
2. the calcium steam closes the formation calcium phosphide with phosphatization in the alloy liquid:
3{Ca}+2[P]＝＝＝＝[Ca
3P
2]
3. dephosphorization product come-up enters slag, generates calcium phosphate after the oxidation:
(Ca
3P
2)+4[O
2]＝＝＝＝3(CaO)+(P
2O
5)
3(CaO)+(P
2O
5)＝＝＝＝(3CaO·P
2O
5)
4. phosphoric acid calcium slag is removed in stove, promptly reached the dephosphorization purpose.
Step 8: alloying constituent adjustment.According to the on-the-spot sample analysis result, refining period alloy liquid chemical ingredients in comprised whole alloying elements except that easy oxidation component.Whether these constituent contents enter pre-determined range fully, also will judge according to the analytical results of molten final proof, if when the element of need adjusting is arranged, should adjust, and making in the alloy liquid all, elements all enter specialized range.
Step 9: come out of the stove.After whole elements in the alloy liquid reach specified chemical composition and require, smelt and change residue adjustment, intensification over to, and come out of the stove and pour into alloy pig.
The ferronickel master alloy of melting and purifying processing is adjusted the control chemical ingredients by the control food ingredient with in the melting and purifying treating processes according to the method described above, can obtain the ferronickel master alloy of following composition
1. name of product is the ferronickel master alloy of SD-Ni12, its chemical composition content (weight percent) is: ni content 12% ± 0.5%, C content≤1.5%, si content≤1.5%, contain Mn amount≤2%, P content＜0.02%, contain S amount＜0.02%, contain Cr amount≤2%, contain Cu≤0.2%, contain Co amount＜0.3%, surplus is Fe.
2. name of product is the ferronickel master alloy of SD-Ni13, its chemical composition content (weight percent) is: ni content 13% ± 0.5%, C content≤1.5%, si content≤1.5%, contain Mn amount≤2%, P content＜0.02%, contain S amount＜0.02%, contain Cr amount≤2%, contain Cu≤0.2%, contain Co amount＜0.3%, surplus is Fe.
3. name of product is the ferronickel master alloy of SD-Ni14, its chemical composition content (weight percent) is: ni content 14% ± 0.5%, C content≤1.5%, si content≤1.5%, contain Mn amount≤2%, P content＜0.02%, contain S amount＜0.02%, contain Cr amount≤2%, contain Cu≤0.2%, contain Co amount＜0.3%, surplus is Fe.
4. name of product is the ferronickel master alloy of SD-Ni15, its chemical composition content (weight percent) is: ni content 15% ± 0.5%, C content≤1.5%, si content≤1.5%, contain Mn amount≤2%, P content＜0.02%, contain S amount＜0.02%, contain Cr amount≤2%, contain Cu≤0.2%, contain Co amount＜0.3%, surplus is Fe.
5. name of product is the ferronickel master alloy of SD-Ni16, its chemical composition content (weight percent) is: ni content 16% ± 0.5%, C content≤1.5%, si content≤1.5%, contain Mn amount≤2%, P content＜0.02%, contain S amount＜0.02%, contain Cr amount≤2%, contain Cu≤0.2%, contain Co amount＜0.3%, surplus is Fe.
6. name of product is the ferronickel master alloy of SD-Ni17, its chemical composition content (weight percent) is: ni content 17% ± 0.5%, C content≤1.5%, si content≤1.5%, contain Mn amount≤2%, P content＜0.02%, contain S amount＜0.02%, contain Cr amount≤2%, contain Cu≤0.2%, contain Co amount＜0.3%, surplus is Fe.
7. name of product is the ferronickel master alloy of SD-Ni18, its chemical composition content (weight percent) is: ni content 18% ± 0.5%, C content≤1.5%, si content≤1.5%, contain Mn amount≤2%, P content＜0.02%, contain S amount＜0.02%, contain Cr amount≤2%, contain Cu≤0.2%, contain Co amount＜0.3%, surplus is Fe.
In the said products title, the combination of first phonetic alphabet of two words " is gone up greatly " in letter " SD " expression.
Claims (8)
1, a kind of melting and purification treatment method of ferronickel master alloy is characterized in that, may further comprise the steps:
The surplus or excess alloy material that the useless ferronickel that cleans up, waste nickel material, scrap iron material are formed is mixed with and contains following chemical ingredients (weight percent): ni content is 10%～18%, C content≤3.0%, si content≤2.0%, contain Mn amount≤3%, contain Cr amount＜2%, contain Cu amount＜0.5%, contain Co amount＜0.5%, P content≤0.1%, contain S amount≤0.1%, surplus is Fe;
The above-mentioned alloyed scrap for preparing is put in the alkaline crucible of medium-frequency induction furnace, described crucible bottom is covered with the end slag that accounts for charging weight 2%～5%, the consisting of of slag of the described end: lime 70%～80%, fluorite 20%～30%;
Send more than the electrically heated alloyed scrap to 1500 ℃, alloyed scrap is melted and bath occurs in crucible bottom, covers on the alloy liquid level after end slag is melted;
After alloyed scrap has melted, add Si, Mn in the alloy liquid and carry out pre-deoxidation, the content of stokehold sampling analysis Ni, C, Si, Mn, Cr, Cu, Co, S, P;
Adopt the pressure of 0.1MPa～0.2MPa the alloy liquid in the stove to be carried out the Argon stirring by gas permeable brick from above-mentioned crucible bottom;
Remove the oxidation sludge on alloy liquid surface, on the alloy liquid level, add Al
2O
3-SiO
2-CaO makes new slag, promote alloy liquid temp to 1550 ℃～1600 ℃, add silicon calcium powder and ferrosilicon powder formation white slag layer and covering alloy liquid to new slag surface and carried out diffusive deoxidation in 25～35 minutes, and then in alloy liquid, add the bulk silicon Ca deoxidizer account for alloy liquid weight 0.2%～0.5% and carry out bulk deoxidation, the content of Ni, the C of the molten final proof of stokehold sampling analysis, Si, Mn, Cr, Cu, Co, S, P;
Adopt dusting device under the pressure effect of 0.1MPa～0.2MPa the CaC of granularity less than 0.5mm
2Pulvis in the steel pipe that inserts the alloy liquid degree of depth 100～120mm to alloy liquid powder dephosphorization;
After adjusting chemical element in the alloy liquid and reaching specified chemical composition, residue adjustment, heat up, coming out of the stove pours into alloy pig.
2, a kind of SD-Ni12 ferronickel master alloy that adopts the melting and purification treatment method manufacturing of the described ferronickel master alloy of claim 1, it is characterized in that, the chemical ingredients of this alloy (weight percent) is: ni content 12% ± 0.5%, C content≤1.5%, si content≤1.5%, contain Mn amount≤2%, P content＜0.02%, contain S amount＜0.02%, contain Cr amount≤2%, contain Cu≤0.2%, contain Co amount＜0.3%, surplus is Fe.
3, a kind of SD-Ni13 ferronickel master alloy that adopts the melting and purification treatment method manufacturing of the described ferronickel master alloy of claim 1, it is characterized in that, the chemical ingredients of this alloy (weight percent) is: ni content 13% ± 0.5%, C content≤1.5%, si content≤1.5%, contain Mn amount≤2%, P content＜0.02%, contain S amount＜0.02%, contain Cr amount≤2%, contain Cu≤0.2%, contain Co amount＜0.3%, surplus is Fe.
4, a kind of SD-Ni14 ferronickel master alloy that adopts the melting and purification treatment method manufacturing of the described ferronickel master alloy of claim 1, it is characterized in that, the chemical ingredients of this alloy (weight percent) is: ni content 14% ± 0.5%, C content≤1.5%, si content≤1.5%, contain Mn amount≤2%, P content＜0.02%, contain S amount＜0.02%, contain Cr amount≤2%, contain Cu≤0.2%, contain Co amount＜0.3%, surplus is Fe.
5, a kind of SD-Ni15 ferronickel master alloy that adopts the melting and purification treatment method manufacturing of the described ferronickel master alloy of claim 1, it is characterized in that, the chemical ingredients of this alloy (weight percent) is: ni content 15% ± 0.5%, C content≤1.5%, si content≤1.5%, contain Mn amount≤2%, P content＜0.02%, contain S amount＜0.02%, contain Cr amount≤2%, contain Cu≤0.2%, contain Co amount＜0.3%, surplus is Fe.
6, a kind of SD-Ni16 ferronickel master alloy that adopts the melting and purification treatment method manufacturing of the described ferronickel master alloy of claim 1, it is characterized in that, the chemical ingredients of this alloy (weight percent) is: ni content 16% ± 0.5%, C content≤1.5%, si content≤1.5%, contain Mn amount≤2%, P content＜0.02%, contain S amount＜0.02%, contain Cr amount≤2%, contain Cu≤0.2%, contain Co amount＜0.3%, surplus is Fe.
7, a kind of SD-Ni17 ferronickel master alloy that adopts the melting and purification treatment method manufacturing of the described ferronickel master alloy of claim 1, it is characterized in that, the chemical ingredients of this alloy (weight percent) is: ni content 17% ± 0.5%, C content≤1.5%, si content≤1.5%, contain Mn amount≤2%, P content＜0.02%, contain S amount＜0.02%, contain Cr amount≤2%, contain Cu≤0.2%, contain Co amount＜0.3%, surplus is Fe.
8, a kind of SD-Ni18 ferronickel master alloy that adopts the melting and purification treatment method manufacturing of the described ferronickel master alloy of claim 1, it is characterized in that, the chemical ingredients of this alloy (weight percent) is: ni content 18% ± 0.5%, C content≤1.5%, si content≤1.5%, contain Mn amount≤2%, P content＜0.02%, contain S amount＜0.02%, contain Cr amount≤2%, contain Cu≤0.2%, contain Co amount＜0.3%, surplus is Fe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100689428A CN101386950B (en) | 2008-10-17 | 2008-10-17 | Nickel iron intermediate alloy and melting and purification treatment method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100689428A CN101386950B (en) | 2008-10-17 | 2008-10-17 | Nickel iron intermediate alloy and melting and purification treatment method thereof |
Related Child Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102539456A Division CN101935798A (en) | 2008-10-17 | 2008-10-17 | Ni13 ferronickel intermediate alloy |
| CN2010102539441A Division CN101935797A (en) | 2008-10-17 | 2008-10-17 | Ni15 ferronickel intermediate alloy |
| CN2010102539422A Division CN101935796A (en) | 2008-10-17 | 2008-10-17 | Ni14 nickel-iron intermediate alloy |
| CN2010102539672A Division CN101935799A (en) | 2008-10-17 | 2008-10-17 | Ni12 ferronickel intermediate alloy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101386950A true CN101386950A (en) | 2009-03-18 |
| CN101386950B CN101386950B (en) | 2010-09-08 |
Family
ID=40476617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100689428A Active CN101386950B (en) | 2008-10-17 | 2008-10-17 | Nickel iron intermediate alloy and melting and purification treatment method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101386950B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102061358A (en) * | 2011-01-17 | 2011-05-18 | 中国恩菲工程技术有限公司 | Desulfuration refining process of high-sulfur crude ferronickel |
| CN102492847A (en) * | 2011-12-14 | 2012-06-13 | 中航上大金属再生科技有限公司 | Method for smelting intermediate alloy by utilizing waste nickel powder |
| CN104264032A (en) * | 2014-09-29 | 2015-01-07 | 四川金广实业（集团）股份有限公司 | Method for producing copper-containing austenitic stainless steel by using waste copper-nickel alloy |
| CN104630566A (en) * | 2015-02-06 | 2015-05-20 | 铜陵百荣新型材料铸件有限公司 | Ferro-nickel alloy and preparation method thereof |
| CN105525189A (en) * | 2016-01-20 | 2016-04-27 | 广西丛欣实业有限公司 | Preparation method of iron alloy |
| CN111500823A (en) * | 2020-04-27 | 2020-08-07 | 江苏萌达新材料科技有限公司 | Process method for reducing oxygen content in pre-alloyed matrix powder smelting process |
| CN111763891A (en) * | 2020-07-23 | 2020-10-13 | 江苏省沙钢钢铁研究院有限公司 | Iron-nickel-copper alloy and vacuum melting process thereof |
-
2008
- 2008-10-17 CN CN2008100689428A patent/CN101386950B/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102061358A (en) * | 2011-01-17 | 2011-05-18 | 中国恩菲工程技术有限公司 | Desulfuration refining process of high-sulfur crude ferronickel |
| CN102061358B (en) * | 2011-01-17 | 2012-12-26 | 中国恩菲工程技术有限公司 | Desulfuration refining process of high-sulfur crude ferronickel |
| CN102492847A (en) * | 2011-12-14 | 2012-06-13 | 中航上大金属再生科技有限公司 | Method for smelting intermediate alloy by utilizing waste nickel powder |
| CN102492847B (en) * | 2011-12-14 | 2013-07-31 | 中航上大金属再生科技有限公司 | Method for smelting intermediate alloy by utilizing waste nickel powder |
| CN104264032A (en) * | 2014-09-29 | 2015-01-07 | 四川金广实业（集团）股份有限公司 | Method for producing copper-containing austenitic stainless steel by using waste copper-nickel alloy |
| CN104630566A (en) * | 2015-02-06 | 2015-05-20 | 铜陵百荣新型材料铸件有限公司 | Ferro-nickel alloy and preparation method thereof |
| CN104630566B (en) * | 2015-02-06 | 2017-01-25 | 铜陵百荣新型材料铸件有限公司 | Ferro-nickel alloy and preparation method thereof |
| CN105525189A (en) * | 2016-01-20 | 2016-04-27 | 广西丛欣实业有限公司 | Preparation method of iron alloy |
| CN111500823A (en) * | 2020-04-27 | 2020-08-07 | 江苏萌达新材料科技有限公司 | Process method for reducing oxygen content in pre-alloyed matrix powder smelting process |
| CN111763891A (en) * | 2020-07-23 | 2020-10-13 | 江苏省沙钢钢铁研究院有限公司 | Iron-nickel-copper alloy and vacuum melting process thereof |
| CN111763891B (en) * | 2020-07-23 | 2022-03-29 | 江苏省沙钢钢铁研究院有限公司 | Iron-nickel-copper alloy and vacuum melting process thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101386950B (en) | 2010-09-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101386950B (en) | Nickel iron intermediate alloy and melting and purification treatment method thereof | |
| CN109280732A (en) | A kind of high cleanliness acid-resistant pipeline steel smelting process | |
| CN102002553B (en) | Desulfurization method of medium and low grade cold rolling non-oriented molten silicon steel | |
| CN108330245A (en) | A kind of high-purity smelting process of stainless steel | |
| CN107287502A (en) | A kind of nitrogenous steel smelting process | |
| CN101838718A (en) | Medium frequency furnace internal dephosphorization and desulfurization smelting process | |
| CN100590216C (en) | Nickel-copper intermediate alloy and smelting purification processing method thereof | |
| CN102248142A (en) | Method for producing medium and low carbon aluminum killed steel | |
| CN108018398A (en) | A kind of ladle top slag for ultra-low-carbon steel deoxidation modification agent and its application method | |
| CN105950826B (en) | A kind of ladle refining furnace refining slag deoxidier and its application method | |
| CN101935740A (en) | White slag refining agent for LF (Ladle Furnace) refining furnace and preparation method thereof | |
| IT8050269A1 (en) | PROCEDURE FOR PRODUCING STEEL WITH A HIGH CHROME CONTENT. | |
| CN101935796A (en) | Ni14 nickel-iron intermediate alloy | |
| CN201258352Y (en) | Sensing smelting furnace of nickel renewable resource intermediate alloy | |
| CN108385035A (en) | Using the method for pro-molten refining slag external refining 14Cr1Mo steel alloys | |
| US4198229A (en) | Method of dephosphorization of metal or alloy | |
| CN111996330A (en) | Process for smelting precise or special alloy by multi-slag method in medium-frequency induction furnace for desulfurization and oxygen removal | |
| US4097269A (en) | Process of desulfurizing liquid melts | |
| JPH0480093B2 (en) | ||
| CN114836593A (en) | Smelting process of low-carbon aluminum-containing cold forging steel | |
| RU2566230C2 (en) | Method of processing in oxygen converter of low-siliceous vanadium-bearing molten metal | |
| CN101935798A (en) | Ni13 ferronickel intermediate alloy | |
| CN101935799A (en) | Ni12 ferronickel intermediate alloy | |
| CN101935797A (en) | Ni15 ferronickel intermediate alloy | |
| CN110484818A (en) | A kind of petroleum rubber core of lubricator supporter steel and its production method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: AVIC SHANGDA METAL RECYCLING TECHNOLOGY CO., LTD. Free format text: FORMER NAME: HEBEI SHANGDA RENEWABLE RESOURCES TECHNOLOGY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 054800 No. 12 New Century Avenue, Qinghe County international cashmere science and Technology Park, Hebei, China Patentee after: AVIC Shangda Metal Regeneration Technology Co.,Ltd. Address before: 054800 No. 12 New Century Avenue, Qinghe County international cashmere science and Technology Park, Hebei, China Patentee before: Hebei Shangda Renewable Resources Technology Co., Ltd. |
|
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 054800 No. 12 New Century Avenue, Qinghe County international cashmere science and Technology Park, Hebei, China Patentee after: AVIC SHANGDA METAL REGENERATION TECHNOLOGY CO., LTD. Address before: 054800 No. 12 New Century Avenue, Qinghe County international cashmere science and Technology Park, Hebei, China Patentee before: AVIC Shangda Metal Regeneration Technology Co.,Ltd. |
|
| CP03 | Change of name, title or address |
Address after: 054800 No.16, Huagong Avenue, Qinghe County, Xingtai City, Hebei Province Patentee after: AVIC Shangda superalloy materials Co.,Ltd. Address before: 054800 No. 12 New Century Avenue, Qinghe County international cashmere science and Technology Park, Hebei, China Patentee before: AVIC SHANGDA SUPER ALLOYS Co.,Ltd. |
|
| CP03 | Change of name, title or address |