CN106282621B - One kind adds different ferroalloy gross weights and adds single ferroalloy weight method for determination of amount - Google Patents
One kind adds different ferroalloy gross weights and adds single ferroalloy weight method for determination of amount Download PDFInfo
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Abstract
The invention provides Metal Melting alloy masterbatch to weigh method for determination of amount, the weight of the masterbatch needed for molten alloy can be accurately obtained, so that the alloy property after melting is more nearly estimated performance.Simultaneously, present invention also offers Metal Melting alloy to add different ferroalloy gross weight method for determination of amount, the weight of the masterbatch needed for molten alloy can accurately be obtained and different ferroalloy gross weights that needs add, so that the alloy property after melting is more nearly estimated performance.Further, present invention provides Metal Melting alloy to add single ferroalloy weight method for determination of amount, to solve that numerical error can be caused using prior art existing for prior art, show that alloy addition is different from the actual alloy addition numerical value, the alloy property after melting is caused deviation to be present, i.e., the alloy property after actual melting is less than the technical problem for being intended to molten alloy performance；It can obtain and accurately add weight, make the alloy property after melting close or identical with estimated performance.
Description
Technical field
The present invention relates to the technical field of molten alloy, and different ferroalloy gross weights and addition are added more particularly, to one kind
Single ferroalloy weight method for determination of amount.
Background technology
Alloy, be as two or more metal and metal or it is nonmetallic through certain method synthesized by there is metal
The material of characteristic；Typically obtained by fusing into uniform liquid and solidification；According to the number of component, binary conjunction can be divided into
Gold, ternary alloy three-partalloy and multicomponent alloy.China is to study and produce earliest in the world one of country of alloy.Included according in alloy
Alloying element it is different, the purposes of alloy is a lot；The generation of alloy can often improve the property of element simple substance, for example, the intensity of steel
More than its main component iron；The physical property of alloy, such as density, reactivity, Young's modulus, electric conductivity and thermal conductivity can
Can still have similar part with the component of alloy, but the tensile strength of alloy and shearing strength but generally with component
Property is very different；This is due to that alloy has very big difference with the atomic arrangement in simple substance；Certain a small amount of element may
Very big influence is caused to the property of alloy, for example, the impurity in ferromagnetic alloy can make the property of alloy change.
Manufacture the applied widely of medium alloy steel, demand is high, and the intensity of the steel alloy needed for different occasions and
Performance is different, and different-alloy is required for obtain after specific method of smelting.To obtain the alloy material of required performance
Material, the various alloying elements of varying number are often added in smelting process, the alloying element of addition will not be in the form of simple substance
It is added into, is all often to add ferroalloy, the accurate addition of ferroalloy is advantageous to obtain desired material property.
At present, the alloy addition of existing alloy melting obtains in the following way：Its
In, wiFor the weight of the single ferroalloy of addition；W is the weight of masterbatch in smelting furnace；C0iTo be intended to different-alloy in alloy smelting
The weight content percentage of element；CiFor the weight content percentage of different-alloy element in masterbatch；ηiClosed for iron in fusion process
The rate of recovery of gold；CMiFor the weight content percentage of different-alloy element in ferroalloy to be added.Calculate according to the method described above
Weight carry out the melting of respective alloy element, obtained alloy property is often less than estimated performance, is the shortcomings that this method：
After ferroalloy is added in masterbatch, the gross weight of masterbatch has no longer been W, and should be W+wiIf added in fusion process
Be a variety of ferroalloys, then the gross weight of masterbatch should be W+ ∑s wi, so, often add a kind of ferroalloy, the property of will result in
Can error, the species of the ferroalloy of addition is more, and weight is bigger, caused by performance error will be bigger；It is meanwhile existing molten
Refine in alloy process, masterbatch W, the weight ∑ w for adding ferroalloyiIt is estimated value, and by the addition of multiple valuation to obtain
Closest alloy is therefore, it is necessary to a kind of molten alloy addition method for reducing performance error.
The content of the invention
First purpose of the present invention is to provide a kind of Metal Melting alloy masterbatch weight method for determination of amount, existing to solve
The numerical value for having masterbatch present in technology is estimated value, causes melting result deviation to be present, and is caused alloy properties after melting
There can be the technical problem of relatively large deviation with the performance of expected molten alloy.
Second object of the present invention is to provide the determination that a kind of Metal Melting alloy adds different ferroalloy gross weights
Method, estimated value is used to solve to add different ferroalloy gross weights existing for prior art, causes melting result deviation to be present,
And the alloy property after melting and the performance for being expected molten alloy is caused the technical problem of relatively large deviation to be present.
Third object of the present invention is to provide the determination side that a kind of Metal Melting alloy adds single ferroalloy weight
Method, to solve that the alloy addition and reality that numerical error draws can be caused using prior art existing for prior art
The numerical value of the alloy addition is different, causes the alloy property after melting deviation to be present, i.e., the alloy property after actual melting is low
In the technical problem for being intended to molten alloy performance.
Herein, the technical term of the present invention is defined as follows first：
Raw material of the masterbatch needed for molten alloy in the present invention, i.e. scrap iron or steel scrap etc..
The expection weight percentage composition for being intended to different-alloy element contained in alloy smelting refers to, in alloy smelting mistake
Cheng Zhong, the weight content percentage of contained different-alloy element in desired alloy smelting product.
After ferroalloy being added into smelting vessels such as smelting furnaces, a part and masterbatch melting and the alloy smelting of ferroalloy,
Due to that can not separate out smelting furnace with masterbatch melting, i.e. ferroalloy is not fully used another part of ferroalloy, wherein, iron
The percentage that the weight being utilized in alloy accounts for ferroalloy weight is the rate of recovery η of ferroalloyi。
In order to realize the above-mentioned purpose of the present invention, spy uses following technical scheme：
A kind of Metal Melting alloy masterbatch weight method for determination of amount, comprises the following steps：
Step 1, it is determined that being intended to the gross weight W of alloy smelting0Contain with the expection weight for the different-alloy element for being intended to alloy smelting
Measure percentage C0i；
Step 2, the species of masterbatch and the species of the ferroalloy added are selected according to the species for being intended to alloy smelting；
Step 3, in melting calculating process, according to following each parameter：It is intended to the expection of the different-alloy element of alloy smelting
Different iron close in weight content percentage, the weight content percentage of different-alloy element of the ferroalloy added, fusion process
The weight content percentage of the different-alloy element contained in the rate of recovery and masterbatch of gold, obtain being intended to alloy smelting by formula (1)
Gross weight be W0The weight W of required masterbatch,
Wherein：
C0iTo be intended to the expection weight percentage composition of the different-alloy element of alloy smelting, CiFor the difference contained in masterbatch
The weight content percentage of alloying element, CMiFor the weight content percentage of the different-alloy element of the ferroalloy of addition, ηiFor
The rate of recovery of different ferroalloys in fusion process, W are the weight of masterbatch.
In the above-mentioned technical solutions, it is necessary first to it is determined that being intended to the gross weight W of alloy smelting0And it is intended to contained in alloy smelting
The expection weight percentage composition C of some different-alloy elements0i.Wherein, it is intended to different-alloy element contained in alloy smelting
Expection weight percentage composition refer to, it is contained in desired alloy smelting product during alloy smelting
The weight content percentage of different-alloy element.Then, species and the addition of masterbatch are selected according to the species for being intended to alloy smelting
Ferroalloy species, wherein, masterbatch is the raw material needed for molten alloy, i.e. scrap iron or steel scrap etc..Add the mesh of ferroalloy
Be introduce various alloying elements.The different-alloy element for the ferroalloy for determining to add according to the species of the ferroalloy of addition
Weight content percentage CMiAnd in fusion process different ferroalloys rate of recovery ηi, determine to contain in masterbatch according to the species of masterbatch
The weight content percentage C of some different-alloy elementsi, finally by W0、C0i、CMi、ηiAnd CiMetal is obtained by formula (1) to melt
Refine alloy masterbatch weight.The present invention realizes the accurate determination to Metal Melting alloy masterbatch weight, so as to alleviate due to smelting
The problem of alloy property that multiple parameters are estimated value and cause to actually obtain in refining alloy process is less than estimated performance.
Meanwhile present invention also offers a kind of different ferroalloy gross weight method for determination of amount of Metal Melting alloy addition, bag
Include following steps：
Step 1, it is determined that being intended to the gross weight W of alloy smelting0Contain with the expection weight for the different-alloy element for being intended to alloy smelting
Measure percentage C0i；
Step 2, the species of masterbatch and the species of the ferroalloy added are selected according to the species for being intended to alloy smelting；
Step 3, in melting calculating process, according to following each parameter：It is intended to the expection of the different-alloy element of alloy smelting
Different iron close in weight content percentage, the weight content percentage of different-alloy element of the ferroalloy added, fusion process
The weight content percentage of the different-alloy element contained in the rate of recovery and masterbatch of gold, obtain being intended to alloy smelting by formula (1)
Gross weight be W0The weight W of required masterbatch,
Step 4, the weight W of obtained masterbatch is obtained by formula (2) to add different ferroalloy gross weight ∑ wiFor：
Wherein：
C0iTo be intended to the expection weight percentage composition of the different-alloy element of alloy smelting, CiFor the difference contained in masterbatch
The weight content percentage of alloying element, CMiFor the weight content percentage of the different-alloy element of the ferroalloy of addition, ηiFor
The rate of recovery of different ferroalloys in fusion process, W are the weight of masterbatch.
In the above-mentioned technical solutions, it is necessary first to it is determined that being intended to the gross weight W of alloy smelting0And it is intended to contained in alloy smelting
The expection weight percentage composition C of some different-alloy elements0i.Wherein, it is intended to different-alloy element contained in alloy smelting
Expection weight percentage composition refer to, it is contained in desired alloy smelting product during alloy smelting
The weight content percentage of different-alloy element.Then, species and the addition of masterbatch are selected according to the species for being intended to alloy smelting
Ferroalloy species, wherein, masterbatch is the raw material needed for molten alloy, i.e. scrap iron or steel scrap etc..Add the mesh of ferroalloy
Be introduce various alloying elements.The different-alloy element for the ferroalloy for determining to add according to the species of the ferroalloy of addition
Weight content percentage CMiAnd in fusion process different ferroalloys rate of recovery ηi, determine to contain in masterbatch according to the species of masterbatch
The weight content percentage C of some different-alloy elementsi, finally by W0、C0i、CMi、ηiAnd CiMetal is obtained by formula (1) to melt
Alloy masterbatch weight W is refined, by W, C0i、CMi、ηiAnd CiMetal Melting alloy is obtained by formula (2) and adds different ferroalloy gross weights
Measure ∑ wi.The present invention realizes the accurate determination to Metal Melting alloy masterbatch weight, the different ferroalloy gross weights of addition respectively,
So as to alleviate because the alloy property that multiple parameters are estimated value and cause to actually obtain during alloy smelting is less than pre-
The problem of phase performance.
Further, present invention also offers a kind of Metal Melting alloy to add single ferroalloy weight method for determination of amount,
Comprise the following steps：
Step 1, it is determined that being intended to the gross weight W of alloy smelting0Contain with the expection weight for the different-alloy element for being intended to alloy smelting
Measure percentage C0i；
Step 2, the species of masterbatch and the species of the ferroalloy added are selected according to the species for being intended to alloy smelting；
Step 3, in melting calculating process, according to following each parameter：It is intended to the expection of the different-alloy element of alloy smelting
Different iron close in weight content percentage, the weight content percentage of different-alloy element of the ferroalloy added, fusion process
The weight content percentage of the different-alloy element contained in the rate of recovery and masterbatch of gold, obtain being intended to alloy smelting by formula (1)
Gross weight be W0The weight W of required masterbatch,
Step 4, obtained masterbatch W is obtained by formula (2) to add different ferroalloy gross weight ∑ wiFor：
Step 5：By the weight W of obtained masterbatch ferroalloy gross weight ∑ ws different with additioniAdded by formula (3)
The weight w of single ferroalloyiFor：
Wherein：
C0iTo be intended to the expection weight percentage composition of the different-alloy element of alloy smelting, CiFor the difference contained in masterbatch
The weight content percentage of alloying element, CMiFor the weight content percentage of the different-alloy element of the ferroalloy of addition, ηiFor
The rate of recovery of different ferroalloys in fusion process, W are the weight of masterbatch.
In the above-mentioned technical solutions, it is necessary first to it is determined that being intended to the gross weight W of alloy smelting0And it is intended to contained in alloy smelting
The expection weight percentage composition C of some different-alloy elements0i.Wherein, it is intended to different-alloy element contained in alloy smelting
Expection weight percentage composition refer to, it is contained in desired alloy smelting product during alloy smelting
The weight content percentage of different-alloy element.Then, species and the addition of masterbatch are selected according to the species for being intended to alloy smelting
Ferroalloy species, wherein, masterbatch is the raw material needed for molten alloy, i.e. scrap iron or steel scrap etc..Add the mesh of ferroalloy
Be introduce various alloying elements.The different-alloy element for the ferroalloy for determining to add according to the species of the ferroalloy of addition
Weight content percentage CMiAnd in fusion process different ferroalloys rate of recovery ηi, determine to contain in masterbatch according to the species of masterbatch
The weight content percentage C of some different-alloy elementsi, finally by W0、C0i、CMi、ηiAnd CiMetal is obtained by formula (1) to melt
Alloy masterbatch weight W is refined, by W, C0i、CMi、ηiAnd CiMetal Melting alloy is obtained by formula (2) and adds different ferroalloy gross weights
Measure ∑ wi, by W, ∑ wi、C0i、CMi、ηiAnd CiObtain adding the weight w of single ferroalloy by formula (3)i, present invention difference is in fact
Show to Metal Melting alloy masterbatch weight, the different ferroalloy gross weights of addition and added the accurate true of single ferroalloy weight
It is fixed, so as to alleviate because the alloy property that multiple parameters are estimated value and cause to actually obtain during alloy smelting is less than
The problem of estimated performance.
Optionally, step 4 replaces with：It is intended to the gross weight W of alloy smelting0Obtained with the weight W of masterbatch by formula (4)
Add the gross weight ∑ w of different ferroalloysi, i.e. ∑ wi=W0- W formulas (4).
Specifically, masterbatch is the raw material of molten alloy, it is preferred that masterbatch is scrap iron or steel scrap, can further be increased
The recycling of scrap iron or steel scrap, while also save melting cost.
Specifically, molten alloy uses high melt, smelting temperature is 1000~2000 DEG C, it is preferred that smelting temperature is
1300 DEG C, 1500 DEG C or 1800 DEG C, and molten alloy is fast melting process, needs to stir in time in smelting furnace.
Specifically, in fusion process different ferroalloys rate of recovery ηiNumerical value by melting environment, temperature, weight and melting
Personnel and determine.
It should be noted that according to the multiple authentication of those skilled in the art and analysis, different ferroalloys are obtained in melting
Recovery rate score in stove, it is preferred that the rate of recovery of Fe-Si alloys is that the rate of recovery of 88%, Fe-Mn alloys is 92%, Fe-Cr
The rate of recovery of alloy is 95%.
Preferably, it is mould steel to be intended to alloy smelting.
Preferably, it is mould steel Cr12Mo1V1 to be intended to alloy smelting.
Specifically, determine to be intended to melting Cr12Mo1V1 gross weight W0, the conjunction with Si is added in the masterbatch into smelting furnace
Golden steel Fe-Si, Si expection weight percentage composition C0i=(0.2~0.4) %；Determine the weight content percentage of Si in masterbatch
CiSi weight content percentage C in=0.2%, Fe-Si steel alloyMi=78.2%, Fe-Si rate of recovery ηiFor 88%；It is logical
Cross formula (1) and obtain W=(0.04~1.07) W0, then pass sequentially through formula (2) and formula (3) obtainAnd wi=(0~29) * (0.04~1.07) W0+ (2~110) * (0.29
~0.58) W0=(0.58~94.83) W0, complete the determination that Metal Melting alloy adds the weight of single ferroalloy.
Determine that it is Cr12Mo1V1 to be intended to alloy smelting first, Cr12Mo1V1 gross weight is W0, in Cr12Mo1V1 to be smelted
Contained Si expection weight percentage composition is (0.2~0.4) %.Then, it is Cr12Mo1V1 according to alloy smelting is intended to,
The masterbatch containing C, Si, Mn, P, S, Cr, Ni, Mo, V, Cu and Ti is selected, and adds the species of corresponding ferroalloy, it is actual to need
A variety of ferroalloys are added, this, which is sentenced, adds exemplified by Fe-Si, the Fe-Si of addition Si weight content percentage CMi=
78.2%, Fe-Si rate of recovery η in fusion processi=88%, determine that the weight containing Si contains in masterbatch according to the species of masterbatch
Measure percentage Ci=0.2%, by W0、C0i、CMi、ηiAnd CiMetal Melting alloy masterbatch weight W=(0.04 is obtained by formula (1)
~1.07) W0, by W, C0i、CMi、ηiAnd CiMetal Melting alloy is obtained by formula (2) and adds different ferroalloy gross weight ∑ wi
=(0.02~1.10) W0, by W, ∑ wi、C0i、CMi、ηiAnd CiObtain adding the weight w of single ferroalloy by formula (3)i=
(0.58~94.83) W0, complete the determination that Metal Melting alloy adds the weight of single ferroalloy.
Compared with prior art, beneficial effects of the present invention are：
(1) the Metal Melting alloy masterbatch weight method for determination of amount of the present invention is used, can accurately obtain the weight of masterbatch,
Realize the corresponding raising of molten alloy precision；
(2) different ferroalloy gross weight method for determination of amount are added using the Metal Melting alloy of the present invention, can not only be accurate
Really obtain the weight of masterbatch, moreover it is possible to which accurate obtain adds different ferroalloy gross weights, further improves the relatively smart of molten alloy
Degree；
(3) single ferroalloy weight method for determination of amount is added using the Metal Melting alloy of the present invention, can accurately obtained
The gross weight of the single ferroalloy of the weight of masterbatch needed for molten alloy, the gross weight of the different ferroalloys added and addition
Amount, compared with prior art, the weight of the alloying element in the different ferroalloys added in fusion process and single iron are closed
The weight of alloying element in gold is taken into account, obtains less straggling parameter, during molten alloy, the weight W of masterbatch
No longer it is estimated value, but the definite known parameters that can be obtained, therefore, the weight of masterbatch is more accurate, when to molten
When single or a variety of ferroalloys are added in furnace, the alloy after the melting of acquisition more they tends to be intended to the weight and performance of alloy smelting.
Embodiment
Embodiment of the present invention is described in detail below in conjunction with embodiment, but those skilled in the art will
Understand, the following example is merely to illustrate the present invention, and is not construed as limiting the scope of the present invention.It is unreceipted specific in embodiment
Condition person, the condition suggested according to normal condition or manufacturer are carried out.
Embodiment 1
The embodiment of the present embodiment is as follows：
Different ferroalloys are added using Metal Melting alloy masterbatch weight method for determination of amount, the Metal Melting alloy of the present invention
Gross weight method for determination of amount and Metal Melting alloy add single ferroalloy weight method for determination of amount, and the present embodiment is intended to melting
2000kg Cr12Mo1V1 steel alloys, mainly include following alloying element in the steel alloy：C、Si、Mn、P、S、Cr、Ni、Mo、
V, Cu and Ti, according to《World standard grade of steel handbook》The expection weight percentage composition of each alloying element is selected respectively such as table 1：
The expection weight percentage composition C of each alloying element in table 1.Cr12Mo1V1 mould steel0i(%)
| C | Si | Mn | P | S | Cr | Ni | Mo | V | Cu | Ti |
| 1.5 | 0.3 | 0.3 | <0.02 | <0.02 | 12.2 | 0.3 | 1 | 1 | 0.3 | 0.03 |
The weight content percentage of each alloying element in selected masterbatch, such as table 2：
The weight content percentage C of each alloying element in the masterbatch of table 2.i(%)
| C | Si | Mn | P | S | Cr | Ni | Mo | V | Cu | Ti |
| 1.1 | 0.2 | 0.2 | 0.017 | 0.018 | 5.3 | 0.21 | 0.05 | 0.06 | 0.1 | 0.015 |
From different ferroalloy species such as table 3：
Table 3. adds different types of ferroalloy
| C | Si | Mn | Cr | Ni | Mo | V | Cu | Ti |
| Electrode powder | Fe-Si | Fe-Mn | Fe-Cr | Ni plates | Fe-Mo | Fe-V | Red copper | Fe-Ti |
Weight content percentage C of each alloying element in the different ferroalloys of additionMi, such as table 4：
The weight content percentage (%) of different-alloy element in the different ferroalloys that table 4. adds
Determine the rate of recovery η of different ferroalloysi, such as table 5：
The rate of recovery (%) for the different ferroalloys that table 5. adds
Above-mentioned known parameters can be obtained into following parameter by formula (1), formula (2) and formula (3) respectively：
Melting 2000kg Cr12Mo1V1 is, it is necessary to masterbatch W=1648.18kg；
Melting 2000kg Cr12Mo1V1, add different ferroalloy gross weight ∑ wi=351.82kg；
Melting 2000kg Cr12Mo1V1 needs single ferroalloy weight wiRespectively such as table 6：
The single ferroalloy weight w that table 6. addsi(kg)
By the single weight alloy w of the above-mentioned addition obtained using the present inventioni, the different-alloy element that contains in masterbatch
Weight content percentage Ci, add ferroalloy different-alloy element weight content percentage CMi, it is different in fusion process
The rate of recovery η of ferroalloyiRespectively by formula (1), formula (2), formula (3) or formula (4), the different-alloy element of alloy after melting is obtained
Actual weight percentage composition such as table 7：
The actual weight percentage composition (%) of the different-alloy element of alloy after the melting of table 7.
| C | Si | Mn | P | S | Cr | Ni | Mo | V | Cu | Ti |
| 1.5 | 0.3 | 0.3 | 0.014 | 0.015 | 12.2 | 0.3 | 1 | 1 | 0.3 | 0.03 |
Table 6 and the respective value in table 7 are contrasted, the actual weight percentage composition of every kind of alloying element is equal to
Expection weight percentage composition, deviation 0, accordingly, the deviation of different-alloy gross weight is also 0.
Masterbatch W evaluation method is carried out according to the evaluation method of prior art, carries out molten alloy, it is specific as follows：It is intended to
Melting 2000kg Cr12Mo1V1 steel alloys, mainly include following alloying element in the steel alloy：C、Si、Mn、P、S、Cr、Ni、
Mo, V, Cu and Ti, according to《World standard grade of steel handbook》Each parameter is selected, it is identical with the parameter of above-mentioned table 1- tables 5, by existing
The calculation formula of technology,The single weight alloy added is respectively such as table 8：
The single ferroalloy weight w that table 8. addsi(kg)
By the single weight alloy w of the above-mentioned addition obtained using prior arti, the different-alloy element that contains in masterbatch
Weight content percentage Ci, add ferroalloy different-alloy element weight content percentage CMi, in fusion process not
With the rate of recovery η of ferroalloyiThe formula of prior art is brought into the master batch weight W of estimation
Obtain the actual weight percentage composition such as table 9 of the different-alloy element of alloy after melting：
The actual weight percentage composition (%) of the different-alloy element of alloy after the melting of table 9.
| C | Si | Mn | P | S | Cr | Ni | Mo | V | Cu | Ti |
| 1.25 | 0.25 | 0.25 | 0.015 | 0.016 | 10.33 | 0.25 | 0.86 | 0.86 | 0.26 | 0.025 |
By the actual weight percentage composition of the different-alloy element of alloy after melting and the different-alloy for being intended to alloy smelting
The expection weight percentage composition C of element0iCompare, the actual weight percentage composition of every kind of alloying element is respectively less than expection weight
Percentage composition, respectively in the presence of certain deviation, accordingly, there is also deviation, the deviation of gross weight for different-alloy gross weight
Be 94.01kg for each difference sum, and add different ferroalloys gross weight for add single ferroalloy weight it
With i.e. 257.81kg.
Compared to prior art, molten alloy and expected molten alloy that new technical scheme of the invention obtains
Different-alloy element content and percentage composition it is identical, expected alloy property can be obtained, there is good prospect of the application.
Embodiment 2
H10 (4Cr3MoSiV) mould steel 2000Kg to be smelted, is provided according to national standard GB/T 1299, the trade mark requirement such as table
10：
Table 10.4Cr3MoSiV (H10) different-alloy element expection weight percentage composition scope (%)
Smelt component content design, i.e. C0i：
Required according to the H10 trades mark, while needed in view of the saving of precious alloy, by alloying element such as Cr, Mo, V, Mn etc.
The lower limit that control of element requires in the trade mark, and C, Si control are in center line, smelting component content design such as table 11：
The expection weight percentage composition (%) of table 11.4Cr3MoSiV (H10) each alloying element
| C | Si | Mn | P | S | Cr | Ni | Mo | V |
| 0.40 | 0.90 | 0.30 | ≤0.015 | ≤0.015 | 3.10 | ≤0.25 | 2.10 | 0.30 |
Raw material (masterbatch) select：
Component content according to design is smelted selects satisfactory raw material such as table 12, pays special attention to impurity member during sorting
Plain (P, S and Ni) content should not be exceeded.
The weight content percentage C of each alloying element in table 12.4Cr3MoSiV (H10) masterbatchi(%)
| C | Si | Mn | P | S | Cr | Ni | Mo | V |
| 0.32 | 0.26 | 0.10 | 0.013 | 0.014 | 1.28 | 0.15 | 0.05 | 0.02 |
From different ferroalloy species：
From selected raw material with designing in terms of composition, C, Si, Mn, Cr, Mo, V therein constituent content can not meet board
Number requirement needs to add.The selected alloy raw material such as table 13 of this six kinds of element additions：
Table 13. adds the weight content percentage C of each alloying element in different types of ferroalloy and different ferroalloysMi
(%)
| Electrode grain (C) | Ferrosilicon (Si) | Ferromanganese (Mn) | Ferrochrome (Cr) | Molybdenum-iron (Mo) | Vanadium iron (V) |
| 98.5 | 78.2 | 78 | 65 | 59.3 | 60 |
It is determined that the rate of recovery η of the different ferroalloys addedi, such as table 14：
The rate of recovery (%) of 14. different ferroalloys of table
| Electrode grain (C) | Ferrosilicon (Si) | Ferromanganese (Mn) | Ferrochrome (Cr) | Molybdenum-iron (Mo) | Vanadium iron (V) |
| 83 | 88 | 92 | 95 | 99 | 92 |
Above-mentioned each known parameter is brought into formula (1), formula (2), formula (3) or formula (4) respectively, respectively obtains following ginseng
Number：W=1829.65 (Kg), ∑ wi=170.35 (Kg), the weight such as table 15 of each ferroalloy of addition：
The weight (kg) for each ferroalloy that table 15. adds
| Electrode grain (C) | Ferrosilicon (Si) | Ferromanganese (Mn) | Ferrochrome (Cr) | Molybdenum-iron (Mo) | Vanadium iron (V) |
| 2.624 | 19.244 | 5.812 | 62.478 | 69.983 | 10.207 |
Return calculating is carried out, the W=1829.65 (Kg) that will be obtained, ∑ wi=170.35 (Kg) and each iron added close
The weight of gold is known parameters, is brought intoWherein C'0i--- add alloy member after ferroalloy
Element returns calculation content；The accuracy (such as table 16) of weight is added for the different ferroalloys obtained by verifying, while obtains actual add
The different-alloy element wt percentage composition and the deviation situation of expected different-alloy element wt percentage composition entered is (such as
Table 17).：
The alloying element that table 16. adds alloy material returns calculation content C'0i
| C | Si | Mn | P | S | Cr | Ni | Mo | V |
| 0.4 | 0.9 | 0.3 | 0.012 | 0.013 | 3.1 | 0.14 | 2.1 | 0.3 |
Table 17.H10 mould steel melting deviation contrast tables (%)
| Element | C | Si | Mn | P | S | Cr | Ni | Mo | V |
| C0i | 0.40 | 0.90 | 0.30 | ≤0.015 | ≤0.015 | 3.10 | ≤0.25 | 2.10 | 0.30 |
| C'0i | 0.40 | 0.90 | 0.30 | 0.012 | 0.013 | 3.10 | 0.14 | 2.10 | 0.30 |
| Deviation | 0 | 0 | 0 | It is qualified | It is qualified | 0 | It is qualified | 0 | 0 |
It follows that using the Metal Melting alloy masterbatch weight of the present invention, add different ferroalloy gross weights and addition
Single ferroalloy weight method for determination of amount, can accurately obtain expected alloy, and can make the property of the alloy after actual melting
Energy and intensity are identical with desired value, deviation 0, save production cost, simplify using multiple valuation to enter existing for prior art
Row repeats to add the flow of alloy, accelerates smelting time, has very strong economic benefit.
Using existing directly joining method：
According to existing directly joining method, i.e., existing melting addition method --- evaluation method carries out masterbatch W estimation side
Method, molten alloy is carried out, directly joining method is in known raw material (masterbatch) weight, carries out adding for alloy material on this basis
Enter to calculate.However, the weight of this raw material again can not be by being accurately calculated.Therefore, this weight is all as needed
Smelting molten steel weight is estimated out, and this certain weight estimated weight and calculated has certain deviation.With this example, we
Need to smelt 2000Kg H10 (4Cr3MoSiV), more to describe the problem, will estimate for the time being weight be set to we by comprehensive plus
Enter the raw-material weight 1829.65Kg that method calculates.
It is specific as follows：Melting 2000kg H10 (4Cr3MoSiV) mould steel is intended to, mainly including following alloying element：C、
Si, Mn, P, S, Cr, Ni, Mo and V, according to《World standard grade of steel handbook》Select each parameter, the parameter with above-mentioned table 11- tables 14
It is identical, by the calculation formula of prior art,The single weight alloy w addedi, such as table
18：
The different ferroalloy weight w that table 18. addsi(kg)
| Electrode grain (C) | Ferrosilicon (Si) | Ferromanganese (Mn) | Ferrochrome (Cr) | Molybdenum-iron (Mo) | Vanadium iron (V) |
| 1.79 | 17.016 | 5.099 | 53.927 | 63.89 | 9.281 |
The different ferroalloy weight sums that the addition gross weight of different ferroalloys as adds, ∑ wi=146.003 (Kg)
The gross weight for finally giving H10 (4Cr3MoSiV) is,
W0=W+ ∑s wi=1829.65+146.003=1975.653 (Kg)
Return and calculate, will expected different-alloy element weight content percentage as unknown parameter, by what is obtained
wi、∑wiAnd W0, and other specification is brought into as known parametersIn, for verifying
Obtained different ferroalloys add the accuracy (such as table 19) of weight, while the different-alloy element wt being actually added into contains
Measure the deviation situation (such as table 20) of percentage and expected different-alloy element wt percentage composition.
Content C' is calculated in returning for the different-alloy element of table 19.i(%)
| C | Si | Mn | P | S | Cr | Ni | Mo | V |
| 0.37 | 0.83 | 0.28 | 0.012 | 0.013 | 2.87 | 0.14 | 1.94 | 0.28 |
Table 20.H10 mould steel melting deviation contrast tables (%)
| Element | C | Si | Mn | P | S | Cr | Ni | Mo | V |
| C0i | 0.40 | 0.90 | 0.30 | ≤0.015 | ≤0.015 | 3.10 | ≤0.25 | 2.10 | 0.30 |
| C'0i | 0.37 | 0.83 | 0.28 | 0.012 | 0.013 | 2.87 | 0.14 | 1.94 | 0.28 |
| Deviation | 0.03 | 0.07 | 0.02 | It is qualified | It is qualified | 0.23 | It is qualified | 0.16 | 0.02 |
It follows that using the directly joining method of prior art, the weight of the different-alloy element of the alloy after actual melting
Measure the weight content percentage that percentage composition is less than expected different-alloy element, and being directly added into using prior art
Method adds the cumbersome of fusion process, it is necessary to the repeatedly addition of the alloy of different weight, while improves production cost, unfavorable
In making full use of for raw material.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
The present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that：Its according to
The technical scheme described in foregoing embodiments can so be modified, either which part or all technical characteristic are entered
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme.
Claims (9)
1. a kind of Metal Melting alloy adds different ferroalloy gross weight method for determination of amount, it is characterised in that：Comprise the following steps：
Step 1, it is determined that being intended to the gross weight W of alloy smelting0With the expection weight content hundred of the different-alloy element of desire alloy smelting
Divide and compare C0i；
Step 2, the species of masterbatch and the species of the ferroalloy added are selected according to the species for being intended to alloy smelting；
Step 3, in melting calculating process, according to following each parameter：It is intended to the expection weight of the different-alloy element of alloy smelting
Different ferroalloys in percentage composition, the weight content percentage of different-alloy element of the ferroalloy added, fusion process
The weight content percentage of the different-alloy element contained in the rate of recovery and masterbatch, obtain being intended to the total of alloy smelting by formula (1)
Weight is W0The weight W of required masterbatch,
Step 4, the weight W of obtained masterbatch is obtained by formula (2) to add different ferroalloy gross weight ∑ wiFor：
Wherein：
C0iTo be intended to the expection weight percentage composition of the different-alloy element of alloy smelting, CiFor the different-alloy contained in masterbatch
The weight content percentage of element, CMiFor the weight content percentage of the different-alloy element of the ferroalloy of addition, ηiFor melting
During different ferroalloys the rate of recovery, W be masterbatch weight.
2. a kind of Metal Melting alloy adds single ferroalloy weight method for determination of amount, it is characterised in that：Comprise the following steps：
Step 1, it is determined that being intended to the gross weight W of alloy smelting0With the expection weight content hundred of the different-alloy element of desire alloy smelting
Divide and compare C0i；
Step 2, the species of masterbatch and the species of the ferroalloy added are selected according to the species for being intended to alloy smelting；
Step 3, in melting calculating process, according to following each parameter：It is intended to the expection weight of the different-alloy element of alloy smelting
Different ferroalloys in percentage composition, the weight content percentage of different-alloy element of the ferroalloy added, fusion process
The weight content percentage of the different-alloy element contained in the rate of recovery and masterbatch, obtain being intended to the total of alloy smelting by formula (1)
Weight is W0The weight W of required masterbatch,
Step 4, the weight W of obtained masterbatch is obtained by formula (2) to add different ferroalloy gross weight ∑ wiFor：
Step 5：By the weight W of obtained masterbatch ferroalloy gross weight ∑ ws different with additioniObtain adding single by formula (3)
The weight w of ferroalloyiFor：
Wherein：
C0iTo be intended to the expection weight percentage composition of the different-alloy element of alloy smelting, CiFor the different-alloy contained in masterbatch
The weight content percentage of element, CMiFor the weight content percentage of the different-alloy element of the ferroalloy of addition, ηiFor melting
During different ferroalloys the rate of recovery, W be masterbatch weight.
3. Metal Melting alloy according to claim 2 adds single ferroalloy weight method for determination of amount, it is characterised in that：
Step 4 replaces with：It is intended to the gross weight W of alloy smelting0Obtain adding different ferroalloys by formula (4) from the weight W of masterbatch
Gross weight ∑ wi, i.e. ∑ wi=W0- W formulas (4).
4. the Metal Melting alloy according to Claims 2 or 3 adds single ferroalloy weight method for determination of amount, its feature exists
In：The masterbatch is the raw material of molten alloy；Preferably, masterbatch is scrap iron or steel scrap.
5. Metal Melting alloy according to claim 4 adds single ferroalloy weight method for determination of amount, it is characterised in that：
Molten alloy uses high melt, and smelting temperature is 1000~2000 DEG C, and molten alloy is fast melting process, smelting furnace
The stirring in time of interior needs.
6. Metal Melting alloy according to claim 5 adds single ferroalloy weight method for determination of amount, it is characterised in that：
The rate of recovery η of different ferroalloys in fusion processiNumerical value determined by melting environment, temperature, weight and melting personnel.
7. Metal Melting alloy according to claim 4 adds single ferroalloy weight method for determination of amount, it is characterised in that：
Desire alloy smelting is mould steel.
8. Metal Melting alloy according to claim 7 adds single ferroalloy weight method for determination of amount, it is characterised in that：
Desire alloy smelting is mould steel Cr12Mo1V1.
9. Metal Melting alloy according to claim 8 adds single ferroalloy weight method for determination of amount, it is characterised in that：
It is determined that it is intended to melting Cr12Mo1V1 gross weight W0, the steel alloy Fe-Si with Si is added in the masterbatch into smelting furnace, Si's
Expection weight percentage composition C0i=(0.2~0.4) %；Determine the weight content percentage C of Si in masterbatchi=0.2%, Fe-
Si weight content percentage C in Si steel alloysMi=78.2%, Fe-Si rate of recovery ηiFor 88%；W=is obtained by formula (1)
(0.04~1.07) W0, then pass sequentially through formula (2) and formula (3) obtain
And wi=(0~29) * (0.04~1.07) W0+ (2~110) * (0.29~0.58) W0=(0.58~94.83) W0, complete metal
Molten alloy adds the determination of the weight of single ferroalloy.
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| CN1065295A (en) * | 1992-05-09 | 1992-10-14 | 冶金工业部钢铁研究总院 | Iron-based non-crystalline alloy |
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| CN102953020A (en) * | 2012-10-30 | 2013-03-06 | 苏州朗拓新材料有限公司 | Fe-based amorphous nanocrystalline soft magnetic alloy material and preparation method thereof |
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| CN104404357A (en) * | 2014-11-17 | 2015-03-11 | 无锡市百顺机械厂 | Processing technology of die steel for alloy die-casting |
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| CN1065295A (en) * | 1992-05-09 | 1992-10-14 | 冶金工业部钢铁研究总院 | Iron-based non-crystalline alloy |
| CN101580903A (en) * | 2009-06-19 | 2009-11-18 | 钢铁研究总院 | Method for smelting iron-based amorphous master alloy |
| CN102953020A (en) * | 2012-10-30 | 2013-03-06 | 苏州朗拓新材料有限公司 | Fe-based amorphous nanocrystalline soft magnetic alloy material and preparation method thereof |
| CN103643106A (en) * | 2013-08-27 | 2014-03-19 | 安徽新天瑞电气有限公司 | Mother alloy smelting method |
| CN104404357A (en) * | 2014-11-17 | 2015-03-11 | 无锡市百顺机械厂 | Processing technology of die steel for alloy die-casting |
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