CN110468293A - A kind of preparation method containing alumin(i)um yellow brass - Google Patents
A kind of preparation method containing alumin(i)um yellow brass Download PDFInfo
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- CN110468293A CN110468293A CN201910919955.XA CN201910919955A CN110468293A CN 110468293 A CN110468293 A CN 110468293A CN 201910919955 A CN201910919955 A CN 201910919955A CN 110468293 A CN110468293 A CN 110468293A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- 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
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- C22C9/00—Alloys based on copper
- C22C9/04—Alloys based on copper with zinc as the next major constituent
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Abstract
The present invention relates to a kind of preparation method containing alumin(i)um yellow brass, 1) preparation method is the following steps are included: take the oxide accordingly formed according to the composition containing alumin(i)um yellow brass, the oxide accordingly formed includes the oxide of the oxide of Cu, Zn；The oxide accordingly formed, Al powder, slag former CaO are uniformly mixed and carry out aluminothermy self-propagating reaction, obtains the high-temperature fusant being made of alloy melt and reducing slag；The oxide of Cu, the oxide of Zn, Al powder, slag former mass ratio be 100:(26.64 ~ 74.21): (29.40 ~ 43.28): (5.92 ~ 33.56)；2) high-temperature fusant gold slag melting is separated；3) it skims, refines, casting.Preparation method production cost containing alumin(i)um yellow brass of the invention is low, high-efficient, and the addition for realizing Al element in Copper substrate simultaneously, avoids Al residual during aluminothermic process prepares other not aluminium-containing alloys and is difficult to the problem of eliminating.
Description
Technical field
This application involves copper alloy preparation technical fields, and in particular to a kind of preparation method containing alumin(i)um yellow brass.
Background technique
Brass is mainly the alloy as composed by copper and zinc.It is the brass alloys containing aluminium containing alumin(i)um yellow brass.Brass because
Stronger wear-resisting property be used to manufacture valve, water pipe, air-conditioning connection pipe for internal-external unit and radiator etc..It is main containing alumin(i)um yellow brass
It is that aluminium element is added in the matrix of copper and Zn-ef ficiency, other addition element can also be contained.Commonly closed containing aldubra
Gold be HAl67-2.5, HAl60-1-1, HAl59-3-2, HAl66-6-3-2, HAl77-2, HMn57-3-1, HFe59-1-1,
HNi56-3 etc..
Preparation method in the prior art containing alumin(i)um yellow brass is mainly smelting process, is with cathode copper, fine aluminium, electrolysis
Manganese, electrolytic zinc, tinplate, high-purity microalloy element be raw material, fusion process are as follows: cathode copper is added to smelting furnace, and is added
Dry coverture is all added deoxidier after fusing, is warming up to 1300 DEG C, the alloying elements such as manganese, iron is added, to alloying element
Remaining copper is added after being completely melt, temperature is adjusted, is cast to obtain.In the preparation method, due in fusion process
The type that alloying element is added is more, and the physical properties such as solid solubility, the fusing point of each alloying element in Copper substrate are different, causes to close
The adition process of gold element is complicated, to cause the process of entire preparation method to complicate, as application publication number is
Preparation containing alumin(i)um yellow brass disclosed in CN107805738A, Authorization Notice No. CN102766777B, CN101658931B
Method.
Meanwhile the preparation method in the prior art containing alumin(i)um yellow brass is using pure metal or intermediate alloy as raw material,
In the presence of be easy to causeing segregation, the problem of higher cost.
Summary of the invention
The purpose of the present invention is to provide a kind of preparation methods containing alumin(i)um yellow brass, yellow containing aluminium in the prior art to solve
Preparation method complex process, the problem at high cost of copper alloy.
To achieve the above object, the technical scheme is that
A kind of preparation method containing alumin(i)um yellow brass, comprising the following steps:
1) oxide accordingly formed is taken according to the composition containing alumin(i)um yellow brass, the oxide accordingly formed can be with Al
Aluminothermy self-propagating reaction occurs for powder, and the oxide accordingly formed includes the oxide of the oxide of Cu, Zn；It will accordingly form
Oxide, Al powder, slag former CaO be uniformly mixed to obtain mixture, by mixture carry out aluminothermy self-propagating reaction, obtain by alloy
The high-temperature fusant of melt and reducing slag composition；The oxide of Cu, the oxide of Zn, Al powder, slag former mass ratio be 100:
(26.64~74.21): (29.40~43.28): (5.92~33.56)；
2) high-temperature fusant gold slag melting is separated；
3) it skims, refines, casting is to get containing alumin(i)um yellow brass.
The oxide accordingly formed is element of the composition containing alumin(i)um yellow brass and can be anti-with Al powder generation aluminothermy self- propagating
The oxide answered.
Preparation method containing alumin(i)um yellow brass of the invention extends firstly, the raw material selected is mainly oxide containing aluminium
The raw material range of brass alloys, reduces production cost；Secondly, by oxide, Al powder and slag former CaO group by accordingly forming
At mixture carry out aluminothermy self-propagating reaction, can by reacting to each other between raw material during the aluminothermy self-propagating reaction
Oxide raw material is all restored, the Al of Cu-Al-Zn based alloy melt and molten state is obtained2O3The height of-CaO base reducing slag composition
Warm melt；Finally, high-temperature fusant successively to be carried out to golden slag melting separation, skim, refine, casting further removes Cu-Al-Zn
It is few, with high purity containing alumin(i)um yellow brass to obtain impurity for impurity in based alloy melt.
Preparation method of the present invention containing alumin(i)um yellow brass, has the advantages that
(1) compared with smelting process, preparation method of the present invention containing alumin(i)um yellow brass can be directly with cheap oxidation
Object and Al powder are raw material, are directly obtained by aluminothermy self-propagating reaction and refining containing alumin(i)um yellow brass, realize a variety of different melting points
One step adding procedure of component avoids the process for repeatedly adding component, and technological operation is simple, production cost is low.
(2) Al powder has a both sides effect in the preparation method containing alumin(i)um yellow brass of the invention, and one side Al powder can be with
As the raw material of aluminothermy self-propagating reaction, another aspect Al powder can be used as Al element and be introduced into containing in alumin(i)um yellow brass, realize Al
While element addition acts on, avoids Al residual during aluminothermic process prepares other not aluminium-containing alloys and be difficult to the problem of eliminating.
(3) preparation method of the invention containing alumin(i)um yellow brass provides heat source using aluminothermy self-propagating reaction, has and reacts fast
The advantages of speed, quick heating, production energy consumption is reduced, production efficiency is improved.
(4) preparation method of the invention containing alumin(i)um yellow brass carries out golden slag melting on the basis of aluminothermy self-propagating reaction
Separation, skims, and refines, and casting improves the removal efficiency of field trash in alloy melt.
Preferably, the oxide of Cu is CuO or Cu2One or both of O.It is further preferred that the oxide of Cu is
CuO。
Preferably, the oxide accordingly formed further includes the oxide of the oxide of Mn, the oxide of Ni or As；Cu
Oxide, Mn oxide mass ratio be 100:(5.54~7.86)；The oxide of Cu, the mass ratio of the oxide of Ni are
100:(3.45~5.85)；The oxide of Cu, the mass ratio of the oxide of As are 100:(0.04~0.08).
Preferably, the oxide accordingly formed further includes the oxide of Fe and the oxide of Mn；Oxide, the Fe of Cu
Oxide, Mn oxide mass ratio be 100:(1.20~6.95): (0.21~5.32).
Preferably, the oxide accordingly formed further includes the oxide of Fe and the oxide of Pb；Oxide, the Fe of Cu
Oxide, Pb oxide mass ratio be 100:(0.61~1.21): (0.23~0.78).
Preferably, the oxide of Mn is MnO2。
Preferably, the oxide of Ni is NiO.
Preferably, the oxide of As is As2O3。
Preferably, the oxide of Fe is Fe2O3。
Preferably, the oxide of Pb is PbO2。
Further to remove the moisture in the oxide accordingly formed, the efficiency of subsequent aluminothermy self-propagating reaction is improved, it is excellent
Choosing, before being uniformly mixed the oxide accordingly formed, Al powder, slag former CaO, also it is dried the oxidation accordingly formed
The step of object and slag former, the temperature of drying process are 150~300 DEG C, and the time of drying process is 12~30h.
For the uniformity coefficient for further increasing raw material, it is preferred that be mixed into ball milling, the time of ball milling is 1~4h.
For the removal efficiency for further increasing field trash, it is preferred that golden slag melting is separated into step 2), in gravity and electricity
The stirring and separation of alloy melt and reducing slag are carried out under magnetic fields, isolated temperature is 1450~1850 DEG C, when isolated
Between be 1~5min；Frequency >=1000Hz of the electromagnetic field.
For the fusing point and viscosity for further decreasing slag, the mobility and basicity of slag are improved, it is preferred that skim in step 3)
To remove the reducing slag of volume fraction 85~95%.
For the depth for further increasing deoxidation, strengthen refining effect, it is preferred that refining is that volume is added to be in step 3)
The pre-melted slag of alloy melt volume 10~30%, bottom blowing are blown deoxidier, are refined under electromagnetic field effect, refining temperature is
1250~1500 DEG C, refining time is 5~20min；Frequency >=1000Hz of the electromagnetic field；The pre-melted slag is binary slag
CaO-NaF or CaO-Na3AlF6, the mass fraction of CaO is 70~85% in pre-melted slag.
Preferably, it is inert gas or reducibility gas that step 3) indsole, which blows and sprays the carrier gas of deoxidier,.
Preferably, the inert gas is argon gas or helium.
Preferably, the reducibility gas is carbon monoxide, methane, any one in hydrogen or two or more.
For the effect for further increasing deoxidation, it is preferred that deoxidier described in step 3) is CaB6Powder, B powder or alkali metal
In steam any one or it is two or more, the dosage of deoxidier is the 0.1~0.6% of alloy melt weight.
Preferably, the vapour of an alkali metal be Li, Na, K, Ca in any one or it is two or more.
Contain alumin(i)um yellow brass using what any one of the above preparation method was prepared.
Detailed description of the invention
Fig. 1 is that aluminothermic reduction obtains high-temperature fusant progress in the preparation method embodiment 1 of the invention containing alumin(i)um yellow brass
Microstructure of the alloy figure after slag gold initial gross separation；
Fig. 2 is the alloy after the preparation method embodiment 1 high temperature melt of the invention containing alumin(i)um yellow brass is refined
Metallographic microscope.
Specific embodiment
Embodiments of the present invention are described further combined with specific embodiments below.In following embodiment, Al powder,
CuO powder, Cu2O powder, Fe2O3Powder, MnO2Powder, NiO powder, As2O3Powder, PbO2Powder, SnO2Powder, CaO powder, CaB6Powder, B powder, slag former
CaO, NaF, slag former Na3AlF6Equal raw materials, ingredient, mixing, aluminothermy self-propagating reaction, golden slag melting separation, are taken off at drying process
The equipment such as slag, refining, casting can be obtained by commercially available conven-tional channels.Purity >=99.5% of Al powder.Granularity≤80 of Al powder
Mesh.Purity >=99.5% of CuO powder.100~200 mesh of granularity of CuO powder.Cu2Purity >=99.5% of O powder.Cu2The granularity of O powder
100~200 mesh.Fe2O3Purity >=99.5% of powder.Fe2O3100~200 mesh of granularity of powder.MnO2Purity >=99.5% of powder.
MnO2100~200 mesh of granularity of powder.Purity >=99.5% of NiO powder.100~200 mesh of granularity of NiO powder.As2O3The purity of powder
>=99.5%.As2O3100~200 mesh of granularity of powder.PbO2Purity >=99.5% of powder.PbO2100~200 mesh of granularity of powder.
Purity >=98.5% of CaO powder.The granularity of CaO powder≤100 mesh.Purity >=99.8% of slag former calcirm-fluoride.Slag former fluorination
100~200 mesh of granularity of calcium.Purity >=99.8% of slag former cryolite.The granularity 100~200 of slag former cryolite
Mesh.
Preparation method embodiment 1 containing alumin(i)um yellow brass of the invention
The preparation method containing alumin(i)um yellow brass of the present embodiment, comprising the following steps:
1) raw material is CuO powder, Al powder, ZnO powder, and slag former is CaO powder；CuO powder, Al powder, ZnO powder, CaO powder mass ratio
For 100:35.2:47.5:12.8；CuO powder, ZnO powder and CaO powder is continuous drying in thermostatic drying chamber, and temperature is 200 DEG C,
Time is 17h, obtains dry reaction mass；Dry reaction mass is mixed into 3h with Al powder on ball mill, must be mixed
Uniform self-propagating reaction material；Self-propagating reaction material is put into graphite crucible reactor, and is put in its top skin
5g metal magnesium powder ignites metal magnesium powder open fire, causes mixed material and aluminothermy self-propagating reaction occurs, obtain being closed by Cu-Al-Zn
The Al of golden melt and molten state2O3The high-temperature fusant of-CaO base reducing slag composition；
2) high-temperature fusant is transferred in electromagnetic induction furnace, golden slag melting separation is carried out under gravity and electromagnetic field effect,
Isolated temperature is 1600 DEG C, and the isolated time is 2min, and the frequency of electromagnetic field is 2500Hz；
3) Al of Cu-Al-Zn alloy melt upper layer volume 88% is removed2O3The quality point of CaO is added in-CaO base reducing slag
The CaO-NaF pre-melted slag that number is 75%, the volume that pre-melted slag is added is the 15% of Cu-Al-Zn alloy melt volume；It was refining
Cheng Zhong is blown CaB into Cu-Al-Zn alloy melt by the way of bottom blowing powder injection using high-purity argon gas as carrier gas6Powder carries out deep
Deoxidation is spent, is refined under electromagnetic field effect, the frequency of electromagnetic field is 2500Hz, and refining temperature is 1350 DEG C, refining time
For 5min；Casting contains alumin(i)um yellow brass after slagging-off.
This is made of containing alumin(i)um yellow brass the constituent element of following weight percentage: Cu 67.5%, Al 2.4%, impurity
0.12%, surplus is zinc.
Preparation method embodiment 2 containing alumin(i)um yellow brass of the invention
The preparation method containing alumin(i)um yellow brass of the present embodiment, comprising the following steps:
1) raw material is CuO powder, Al powder, ZnO powder, Fe2O3Powder, PbO2Powder, slag former are CaO powder；CuO powder, Al powder, ZnO
Powder, Fe2O3Powder, PbO2Powder, CaO powder mass ratio be 100:41.43::73.81:0.9:0.58:12.45；By CuO powder, ZnO
Powder, Fe2O3Powder, PbO2Powder and CaO powder are continuous drying in thermostatic drying chamber, and temperature is 180 DEG C, and time 20h is obtained dry
Reaction mass；Dry reaction mass is mixed into 1h with Al powder on ball mill, obtains uniformly mixed self-propagating reaction object
Material；Self-propagating reaction material is put into graphite crucible reactor, and puts 5g metal magnesium powder in its top skin, by magnesium metal
Powder open fire ignites, and causes mixed material and aluminothermy self-propagating reaction occurs, obtain by Cu-Al-Zn-Fe-Pb alloy melt and melting
The Al of state2O3The high-temperature fusant of-CaO base reducing slag composition；
2) high-temperature fusant is transferred in electromagnetic induction furnace, golden slag melting separation is carried out under gravity and electromagnetic field effect,
Isolated temperature is 1650 DEG C, disengaging time 3min, and the frequency of electromagnetic field is 2000Hz；
3) Al of Cu-Al-Zn-Fe-Pb alloy melt upper layer volume 90% is removed2O3- CaO base reducing slag, is added CaO's
The CaO-Na that mass fraction is 78%3AlF6Pre-melted slag, the volume that pre-melted slag is added is Cu-Al-Zn-Fe-Pb alloy melt volume
25%, refined under electromagnetic field effect, the frequency of electromagnetic field is 2000Hz, and refining temperature is 1380 DEG C, refining time
For 20min；In refining process, using high-purity argon gas as carrier gas, to Cu-Al-Zn-Fe-Pb alloy by the way of bottom blowing powder injection
It is blown B powder in melt and carries out depth deoxidation, dosage is the 0.25% of Cu-Al-Zn-Fe-Pb alloy melt total weight；Casting, is removed
Up to containing alumin(i)um yellow brass after slag.
This is made of containing alumin(i)um yellow brass the constituent element of following weight percentage: Cu 57.80%, Al 2.42%, Fe
0.43%, Pb 0.35%, impurity 0.053%, surplus are zinc.
Preparation method embodiment 3 containing alumin(i)um yellow brass of the invention
The preparation method containing alumin(i)um yellow brass of the present embodiment, comprising the following steps:
1) raw material is CuO powder, Al powder, ZnO powder, Fe2O3Powder, MnO2Powder, slag former are CaO powder；CuO powder, Al powder, ZnO
Powder, Fe2O3Powder, MnO2Powder, CaO powder mass ratio be 100:38.98:66.64:1.82:1.66:13.54；By CuO powder, ZnO
Powder, Fe2O3Powder, MnO2Powder and CaO powder are continuous drying in thermostatic drying chamber, and temperature is 200 DEG C, and time 17h is obtained dry
Reaction mass；Dry reaction mass is mixed into 2h with Al powder on ball mill, obtains uniformly mixed self-propagating reaction object
Material；Self-propagating reaction material is put into graphite crucible reactor, and puts 5g metal magnesium powder in its top skin, by magnesium metal
Powder open fire ignites, and causes mixed material and aluminothermy self-propagating reaction occurs, obtain by Cu-Al-Zn-Fe-Mn alloy melt and melting
The Al of state2O3The high-temperature fusant of-CaO base reducing slag composition；
2) high-temperature fusant is transferred in electromagnetic induction furnace, golden slag melting separation is carried out under gravity and electromagnetic field effect,
Isolated temperature is 1700 DEG C, and the isolated time is 4min, and the frequency of electromagnetic field is 2000Hz；
3) Al of Cu-Al-Zn-Fe-Mn alloy melt upper layer volume 92% is removed2O3- CaO base reducing slag, is added CaO's
The CaO-NaF pre-melted slag that mass fraction is 78%, the volume that pre-melted slag is added is Cu-Al-Zn-Fe-Mn alloy melt volume
28%；It is refined under electromagnetic field effect, the frequency of electromagnetic field is 2000Hz, and refining temperature is 1400 DEG C, and refining time is
15min；It is molten to Cu-Al-Zn-Fe-Mn alloy by the way of bottom blowing powder injection using high-purity argon gas as carrier gas in refining process
CaB is blown in body6Powder carries out depth deoxidation, and dosage is the 0.55% of Cu-Al-Zn-Fe-Mn alloy melt total weight；Casting, is removed
Up to containing alumin(i)um yellow brass after slag.
This is made of containing alumin(i)um yellow brass the constituent element of following weight percentage: Cu 58.6%, Al 0.54%,
Fe0.65%, Mn 0.54%, impurity 0.478%, surplus are zinc.
Preparation method embodiment 4 containing alumin(i)um yellow brass of the invention
The preparation method containing alumin(i)um yellow brass of the present embodiment, comprising the following steps:
1) raw material is CuO powder, Al powder, ZnO powder, Fe2O3Powder, MnO2Powder, slag former are CaO powder；CuO powder, Al powder, ZnO
Powder, Fe2O3Powder, MnO2Powder, CaO powder mass ratio be 100:38.90:33.9:3.95:3.32:12.86；By CuO powder, ZnO powder,
Fe2O3Powder, MnO2Powder and CaO powder are continuous drying in thermostatic drying chamber, and temperature is 180 DEG C, time 20h, obtain dry anti-
Answer material；Dry reaction mass is mixed into 1h with Al powder on ball mill, obtains uniformly mixed self-propagating reaction material；It will
Self-propagating reaction material is put into graphite crucible reactor, and puts 5g metal magnesium powder in its top skin, and metal magnesium powder is bright
Fire ignites, and causes mixed material and aluminothermy self-propagating reaction occurs, obtain by Cu-Al-Zn-Fe-Mn alloy melt and molten state
Al2O3The high-temperature fusant of-CaO base reducing slag composition；
2) high-temperature fusant is transferred in electromagnetic induction furnace, golden slag melting separation is carried out under gravity and electromagnetic field effect,
Isolated temperature is 1650 DEG C, and the isolated time is 3min, and the frequency of electromagnetic field is 2000Hz；
3) Al of Cu-Al-Zn-Fe-Mn alloy melt upper layer volume 90% is removed2O3- CaO base reducing slag, is added CaO's
The CaO-NaF pre-melted slag that mass fraction is 85%, the volume that pre-melted slag is added is Cu-Al-Zn-Fe-Mn alloy melt volume
25%；Carry out refining removal of impurities under electromagnetic field effect, the frequency of electromagnetic field is 2000Hz, and refining temperature is 1380 DEG C, when refining
Between be 20min；In refining process, using high-purity argon gas as carrier gas, closed by the way of bottom blowing powder injection to Cu-Al-Zn-Fe-Mn
CaB is blown in golden melt6Powder carries out depth deoxidation, and dosage is the 0.5% of Cu-Al-Zn-Fe-Mn alloy melt total weight；It pours
Casting contains alumin(i)um yellow brass after slagging-off.
This is made of containing alumin(i)um yellow brass the constituent element of following weight percentage: Cu 66.80%, Al 6.6%,
Fe2.5%, Mn 1.8%, impurity 0.026%, surplus are zinc.
Preparation method embodiment 5 containing alumin(i)um yellow brass of the invention
The preparation method containing alumin(i)um yellow brass of the present embodiment, comprising the following steps:
1) raw material is CuO powder, Al powder, ZnO powder, Fe2O3Powder, MnO2Powder, slag former are CaO powder；CuO powder, Al powder, ZnO
Powder, Fe2O3Powder, MnO2Powder, CaO powder mass ratio be 100:38.89:63.8:1.86:0.72:17.4；By CuO powder, ZnO powder,
Fe2O3Powder, MnO2Powder and CaO powder are continuous drying in thermostatic drying chamber, and temperature is 200 DEG C, time 17h, obtain dry anti-
Answer material；Dry reaction mass is mixed into 2h with Al powder on ball mill, obtains uniformly mixed self-propagating reaction material；It will
Self-propagating reaction material is put into graphite crucible reactor, and puts 5g metal magnesium powder in its top skin, and metal magnesium powder is bright
Fire ignites, and causes mixed material and aluminothermy self-propagating reaction occurs, obtain by Cu-Al-Zn-Fe-Mn alloy melt and molten state
Al2O3The high-temperature fusant of-CaO base reducing slag composition；
2) high-temperature fusant is transferred in electromagnetic induction furnace, golden slag melting separation is carried out under gravity and electromagnetic field effect,
Isolated temperature is 1650 DEG C, and the isolated time is 3min, and the frequency of electromagnetic field is 2300Hz；
3) Al of Cu-Al-Zn-Fe-Mn alloy melt upper layer volume 90% is removed2O3- CaO base reducing slag, is added CaO's
The CaO-Na that mass fraction is 80%3AlF6Pre-melted slag, the volume that pre-melted slag is added is Cu-Al-Zn-Fe-Mn alloy melt volume
25%；It is refined under electromagnetic field effect, the frequency of electromagnetic field is 2300Hz, and refining temperature is 1300 DEG C, refining time
For 10min；In refining process, using high-purity argon gas as carrier gas, to Cu-Al-Zn-Fe-Mn alloy by the way of bottom blowing powder injection
CaB is blown in melt6Powder carries out depth deoxidation, and dosage is the 0.4% of Cu-Al-Zn-Fe-Mn alloy melt total weight；Casting,
Up to containing alumin(i)um yellow brass after slagging-off.
This is made of containing alumin(i)um yellow brass the constituent element of following weight percentage: Cu 58.6%, Al 0.9%,
Fe1.3%, Mn 0.3%, impurity 0.008%, surplus are zinc.
Preparation method embodiment 6 containing alumin(i)um yellow brass of the invention
The preparation method containing alumin(i)um yellow brass of the present embodiment, comprising the following steps:
1) raw material is CuO powder, Al powder, ZnO powder, MnO2Powder, slag former are CaO powder；CuO powder, Al powder, ZnO powder, MnO2Powder,
The mass ratio of CaO powder is 100:41.53:67.54:5.86:12.52；By CuO powder, ZnO powder, MnO2Powder and CaO powder are dry in constant temperature
Continuous drying in dry case, temperature is 200 DEG C, and time 17h obtains dry reaction mass；By dry reaction mass with
Al powder mixes 2h on ball mill, obtains uniformly mixed self-propagating reaction material；Self-propagating reaction material is put into graphite crucible
In reactor, and 5g metal magnesium powder is put in its top skin, metal magnesium powder open fire is ignited, caused mixed material and aluminothermy occurs
Self-propagating reaction obtains the Al by Cu-Al-Zn-Mn alloy melt and molten state2O3The high-temperature fusant of-CaO base reducing slag composition；
2) high-temperature fusant is transferred in electromagnetic induction furnace, golden slag melting separation is carried out under gravity and electromagnetic field effect,
Isolated temperature is 1650 DEG C, and the isolated time is 3min, and the frequency of electromagnetic field is 2300Hz；
3) Al of Cu-Al-Zn-Mn alloy melt upper layer volume 90% is removed2O3- CaO base reducing slag, is added the quality of CaO
The CaO-Na that score is 83%3AlF6Pre-melted slag, the volume that pre-melted slag is added is the 25% of Cu-Al-Zn-Mn alloy melt volume；
It is refined under electromagnetic field effect, the frequency of electromagnetic field is 2300Hz, and refining temperature is 1300 DEG C, refining time 10min；
In refining process, using high-purity argon gas as carrier gas, B is blown into Cu-Al-Zn-Mn alloy melt by the way of bottom blowing powder injection
Powder carries out depth deoxidation, and dosage is the 0.45% of Cu-Al-Zn-Mn alloy melt total weight；Casting, up to yellow containing aluminium after slagging-off
Copper alloy.
This is made of containing alumin(i)um yellow brass the constituent element of following weight percentage: Cu 57.5%, Al 0.8%,
Mn2.6%, impurity 0.103%, surplus are zinc.
Preparation method embodiment 7 containing alumin(i)um yellow brass of the invention
The preparation method containing alumin(i)um yellow brass of the present embodiment, comprising the following steps:
1) raw material is CuO powder, Al powder, ZnO powder, NiO powder, and slag former is CaO powder；CuO powder, Al powder, ZnO powder, NiO powder,
The mass ratio of CaO powder is 100:39.5:62.5:3.85:9.6；By CuO powder, ZnO powder, NiO powder and CaO powder in thermostatic drying chamber
In it is continuous drying, temperature be 200 DEG C, time 17h obtains dry reaction mass；By dry reaction mass and Al powder
2h is mixed on ball mill, obtains uniformly mixed self-propagating reaction material；Self-propagating reaction material is put into graphite crucible reaction
In device, and 5g metal magnesium powder is put in its top skin, metal magnesium powder open fire is ignited, caused mixed material and aluminothermy occurs from climing
Prolong reaction, obtains the Al by Cu-Al-Zn-Ni alloy melt and molten state2O3The high-temperature fusant of-CaO base reducing slag composition；
2) high-temperature fusant is transferred in electromagnetic induction furnace, golden slag melting separation is carried out under gravity and electromagnetic field effect,
Isolated temperature is 1700 DEG C, and the isolated time is 4min, and the frequency of electromagnetic field is 2000Hz；
3) Al of Cu-Al-Zn-Ni alloy melt upper layer volume 92% is removed2O3- CaO base reducing slag, is added the quality of CaO
The CaO-NaF pre-melted slag that score is 78%, the volume that pre-melted slag is added is the 28% of Cu-Al-Zn-Ni alloy melt volume；In
It is refined under electromagnetic field effect, the frequency of electromagnetic field is 2000Hz, and refining temperature is 1400 DEG C, refining time 15min；In
In refining process, using high-purity argon gas as carrier gas, B powder is blown into Cu-Al-Zn-Ni alloy melt by the way of bottom blowing powder injection
Depth deoxidation is carried out, dosage is the 0.35% of Cu-Al-Zn-Ni alloy melt total weight；Casting contains aldubra after slagging-off
Alloy.
This is made of containing alumin(i)um yellow brass the constituent element of following weight percentage: Cu 59.6%, Al 2.8%,
Ni2.5%, impurity 0.095%, surplus are zinc.
Preparation method embodiment 8 containing alumin(i)um yellow brass of the invention
The preparation method containing alumin(i)um yellow brass of the present embodiment, comprising the following steps:
1) raw material is CuO powder, Al powder, ZnO powder, As2O3Powder, slag former are CaO powder；CuO powder, Al powder, ZnO powder, As2O3
Powder, CaO powder mass ratio be 100:29.85:27.35:0.06:11.68；By CuO powder, ZnO powder, As2O3Powder and CaO powder are in perseverance
Continuous drying in warm drying box, temperature is 200 DEG C, and time 17h obtains dry reaction mass；By dry reactant
Material mixes 2h with Al powder on ball mill, obtains uniformly mixed self-propagating reaction material；Self-propagating reaction material is put into graphite
In crucible reaction device, and 5g metal magnesium powder is put in its top skin, metal magnesium powder open fire is ignited, mixed material is caused
Aluminothermy self-propagating reaction obtains the Al by Cu-Al-Zn-As alloy melt and molten state2O3The high temperature of-CaO base reducing slag composition
Melt；
2) high-temperature fusant is transferred in electromagnetic induction furnace, golden slag melting separation is carried out under gravity and electromagnetic field effect,
Isolated temperature is 1600 DEG C, and the isolated time is 2min, and the frequency of electromagnetic field is 2500Hz；
3) Al of Cu-Al-Zn-As alloy melt upper layer volume 88% is removed2O3- CaO base reducing slag, is added the quality of CaO
The CaO-NaF pre-melted slag that score is 85%, the volume that pre-melted slag is added is the 15% of Cu-Al-Zn-As alloy melt volume；In
It is refined under electromagnetic field effect, the frequency of electromagnetic field is 2500Hz, and refining temperature is 1350 DEG C, refining time 5min；In
In refining process, using high-purity argon gas as carrier gas, CaB is blown into Cu-Al-Zn-As alloy melt by the way of bottom blowing powder injection6
Powder carries out depth deoxidation, and dosage is the 0.6% of Cu-Al-Zn-As alloy melt total weight；Casting contains aldubra after slagging-off
Alloy.
This is made of containing alumin(i)um yellow brass the constituent element of following weight percentage: Cu 77.90%, Al 1.9%,
As0.05%, impurity 0.018%, surplus are zinc.
Test example:
High-temperature fusant obtained in 1 step of embodiment (2) is transferred in electromagnetic induction furnace, in gravity and electromagnetic field effect
The golden slag melting separation of lower progress, obtains Cu-Zn-Al alloy, carries out metallographic characterization to it, obtained result is as shown in Figure 1, show
There is aluminium oxide residual in golden slag Cu-Zn-Al alloy melt obtained after separation.
Metallographic characterization is carried out by alumin(i)um yellow brass (aluminium copper-nickel alloy HAl67-2.5) is contained obtained in 1 step of embodiment (3), is obtained
To result as shown in Fig. 2, show electromagnetism refining after obtain containing alumin(i)um yellow brass (aluminium copper-nickel alloy HAl67-2.5) structure it is equal
Even, alumina-free residual shows to be prepared using preparation method of the invention containing alumin(i)um yellow brass.
Claims (9)
1. a kind of preparation method containing alumin(i)um yellow brass, which comprises the following steps:
1) oxide accordingly formed is taken according to the composition containing alumin(i)um yellow brass, the oxide accordingly formed can be sent out with Al powder
The hot self-propagating reaction of cast alumin(i)um, the oxide accordingly formed include the oxide of the oxide of Cu, Zn；The oxygen that will accordingly form
Compound, Al powder, slag former CaO are uniformly mixed to obtain mixture, and mixture is carried out aluminothermy self-propagating reaction, is obtained by alloy melt
With the high-temperature fusant of reducing slag composition；The oxide of Cu, the oxide of Zn, Al powder, slag former mass ratio be 100:(26.64 ~
74.21): (29.40 ~ 43.28): (5.92 ~ 33.56)；
2) high-temperature fusant gold slag melting is separated；
3) it skims, refines, casting is to get containing alumin(i)um yellow brass.
2. as described in claim 1 containing the preparation method of alumin(i)um yellow brass, which is characterized in that the oxide accordingly formed
It further include the oxide of the oxide of Mn, the oxide of Ni or As；The oxide of Cu, the mass ratio of the oxide of Mn are 100:
(5.54 ~ 7.86)；The oxide of Cu, the mass ratio of the oxide of Ni are 100:(3.45 ~ 5.85)；The oxygen of the oxide of Cu, As
The mass ratio of compound is 100:(0.04 ~ 0.08).
3. as described in claim 1 containing the preparation method of alumin(i)um yellow brass, which is characterized in that the oxide accordingly formed
It further include the oxide of Fe and the oxide of Mn；The oxide of Cu, the oxide of Fe, Mn oxide mass ratio be 100:
(1.20 ~ 6.95): (0.21 ~ 5.32).
4. as described in claim 1 containing the preparation method of alumin(i)um yellow brass, which is characterized in that the oxide accordingly formed
It further include the oxide of Fe and the oxide of Pb；The oxide of Cu, the oxide of Fe, Pb oxide mass ratio be 100:
(0.61 ~ 1.21): (0.23 ~ 0.78).
5. as described in claim 1 containing the preparation method of alumin(i)um yellow brass, which is characterized in that golden slag melting separation in step 2
To carry out the stirring and separation of alloy melt and reducing slag under gravity and electromagnetic field effect, isolated temperature is 1450 ~ 1850
DEG C, the isolated time is 1 ~ 5min；Frequency >=1000Hz of the electromagnetic field.
6. as described in claim 1 containing the preparation method of alumin(i)um yellow brass, which is characterized in that skimmed in step 3) to remove
The reducing slag of volume fraction 85 ~ 95%.
7. as described in claim 1 containing the preparation method of alumin(i)um yellow brass, which is characterized in that refining is to be added in step 3)
Volume is the pre-melted slag of alloy melt volume 10 ~ 30%, and bottom blowing is blown deoxidier, is refined under electromagnetic field effect, refining temperature
Degree is 1250 ~ 1500 DEG C, and refining time is 5 ~ 20min；Frequency >=1000Hz of the electromagnetic field；The pre-melted slag is binary slag
CaO-NaF or CaO-Na3AlF6, the mass fraction of CaO is 70 ~ 85% in pre-melted slag.
8. as claimed in claim 7 containing the preparation method of alumin(i)um yellow brass, which is characterized in that step 3) indsole blows and sprays stripping oxygen
The carrier gas of agent is inert gas or reducibility gas.
9. as claimed in claim 7 containing the preparation method of alumin(i)um yellow brass, which is characterized in that deoxidier described in step 3) is
CaB6In powder, B powder or vapour of an alkali metal any one or it is two or more, the dosage of deoxidier be alloy melt weight 0.1 ~
0.6%。
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Application publication date: 20191119 |