CN105316508B - A kind of aluminum refining agent of the erbium of lanthanum containing cerium - Google Patents
A kind of aluminum refining agent of the erbium of lanthanum containing cerium Download PDFInfo
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- CN105316508B CN105316508B CN201510687620.1A CN201510687620A CN105316508B CN 105316508 B CN105316508 B CN 105316508B CN 201510687620 A CN201510687620 A CN 201510687620A CN 105316508 B CN105316508 B CN 105316508B
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Abstract
The invention discloses a kind of aluminum refining agents of the erbium of lanthanum containing cerium, including A material and B material, wherein the A material include the raw material of following parts by weight：NaCl70~80 part, KCl50~56 part, CaCl210~15 parts, NaF30~36 part, AlF310~12 parts, 10~12 parts of cryolite, 12~18 parts of marble powder, 15~25 parts of precipitated calcium carbonate；The B material are by C2Cl6、TiO2With metal by weight 5:1.5~2:1~1.5 composition, the metal are the mixed metal comprising Mg, Ce, La, Er；A expects and B material are used cooperatively, and weight ratio is 2~4:1.The refining agent of the present invention is used for refining aluminium alloy, can effectively reduce the hydrogen content of aluminium alloy melt, the oxide for removing aluminium alloy melt is mingled with.
Description
Technical field
The present invention relates to aluminium alloy smelting manufacture field, especially a kind of aluminum refining agent of the erbium of lanthanum containing cerium.
Background technology
In the defense technologies such as aerospace field, the application of large aluminum alloy casting is more and more, and the requirement to casting is got over
Come higher, other than ensureing its chemical composition, mechanical property and dimensional accuracy, casting is not allowed also to have shrinkage cavity, stomata, ooze
The defects of leakage, slag inclusion；Purifying aluminium alloy melt processing is to produce one of the basic guarantee measure of aluminium casting of high quality, and carry
The main means of high-aluminium alloy comprehensive performance.Aluminium alloy melt refining effect has important shadow to loose, stomata, the formation being mingled with etc.
It rings, and directly affects the physical property, mechanical property and performance of aluminium casting；Therefore, improve the quality of alloy molten solution then
It is the important link for improving casting quality；The main task of aluminium alloy melt processing is to improve degree of purity and the change of molten aluminium alloy
Matter effect.
Although aluminum refining agent can will remove some and be mingled with and reduce hydrogen content at present, more for being mingled with
Aluminium alloy smelting process is especially mingled with removal effect containing tiny field trash, nonmetal oxide etc. and does not reach requirement, and
It cannot achieve while removing aluminium alloy melt impurity, aluminium alloy melt refined and is gone bad, to preferably improve
The mechanics and performance of aluminium alloy castings.
Invention content
The present invention provides a kind of aluminum refining agents of the erbium of lanthanum containing cerium, can effectively reduce the hydrogen content of aluminium alloy melt,
The oxide of removal aluminium alloy melt is mingled with.
To achieve the above object, the technical scheme is that：
A kind of aluminum refining agent of the erbium of lanthanum containing cerium, including A material and B material, wherein the A material include following parts by weight
Raw material：NaCl70~80 part, KCl50~56 part, CaCl210~15 parts, NaF30~36 part, AlF310~12 parts, cryolite
10~12 parts, 12~18 parts of marble powder, 15~25 parts of precipitated calcium carbonate；The B material are by C2Cl6、TiO2By weight with metal
5:1.5~2:1~1.5 composition, the metal are the mixed metal comprising Mg, Ce, La, Er；A expects and B material are used cooperatively, weight
Than being 2~4:1.
Preferably, in the B material, each metal presses following weight：Mg50~60 part, 10~15 parts of Ce, La10~
15 parts, Er8~12 part.
Preferably, the A material include the raw material of following parts by weight：NaCl75 parts, KCl53 parts, CaCl212 parts, NaF33
Part, AlF311 parts, 11 parts of cryolite, 16 parts of marble powder, 20 parts of precipitated calcium carbonate.
It is furthermore preferred that in the B material, each metal presses following weight：Mg55 parts, 12 parts of 12 parts of Ce, La, Er10
Part.
Preferably, the weight proportion of the A material and B material is 3:1.
Preferably, the B material are by C2Cl6、TiO2With metal by weight 5:1.8:1.2 composition.
A kind of application method of the aluminum refining agent of the erbium of lanthanum containing cerium, includes the following steps：
S1, when the temperature of smelting furnace rises to 650-690 DEG C, spray into A material, addition be 0.1~2.5g/kg melts, fill
Divide stirring, skim；
S2, when the temperature rise of smelting furnace is to 780-810 DEG C, in proportion spray into B material, be sufficiently stirred, skim；
S3, routinely technique stand heat preservation, then pour into a mould, cooling and heat treatment.
What said components raw material each served as act as：
NaCl and KCl：To solid-state Al2O3, field trash and oxidation film have very strong wetting capacity, and under smelting temperature
The proportion of NaCl and KCl only has 1.55g/cm3L.50g/cm3, significantly less than the proportion of aluminum melt, therefore can spread over well
Aluminium alloy melt surface is crushed and adsorbs the oxidation film of bath surface；
CaCl2：Chloride, surface tension is small, and wetability is good, is used cooperatively with NaCl and KCl；
NaF、AlF3And cryolite：Mainly play refining, such as absorption, dissolving Al2O3；Villiaumite can also be effectively removed
The oxidation film of bath surface improves degassing effect；
Precipitated calcium carbonate and marble powder：The thickness of foam can be improved in good foaming agent, desulfurizing agent, marble powder；
C2Cl6：Hygroscopicity is low, easy to use, and refining effect is good, and has Grain Refinement Effect；
Mg、Ce、La、Er：Alkali metal and rare earth metal have good modification effect to molten aluminium alloy, can obviously subtract
Little crystallite size improves the uniformity of aluminum products；And rare earth simple substance can replace and adsorb in melt impurities H into complex compound REH2
Or REH3Have the function that degasification.
When the refining agent of the present invention is used for refining aluminium alloy, it is blown into smelting furnace with the use of nitrogen or argon gas, and at twice
Different raw materials is sprayed into, preferable dehydrogenation effect is can get, advantage includes：
(1) Mg, Ce, La and Er element, especially Ce, La and Er these types rare earth element are added during refining
Addition, it can be achieved that while dehydrogenation and removal oxide are mingled with, rotten and refining effect is played to aluminum alloy organization, is improved
The mechanical property of alloy；
(2) dehydrogenation is with obvious effects, and H content can drop to the level of about 0.10~0.16ml/100gAl；
(3) oxide that can fully remove in melt is mingled with, and slagging-off rate can reach 90% or more；
(4) molten aluminium alloy is for pouring into a mould aluminium alloy ingots, and gained aluminium alloy ingots fractograph is fine and close, without slag and folder
Sundries.
Specific implementation mode
Below in conjunction with specific embodiment, the invention will be further described, but protection scope and application range of the present invention are not
It is limited to following embodiment：
Embodiment 1
A kind of aluminum refining agent of the erbium of lanthanum containing cerium, including A material and B material, wherein A material include the raw material of following parts by weight：
NaCl75 parts, KCl53 parts, CaCl212 parts, NaF33 parts, AlF311 parts, 11 parts of cryolite, 16 parts of marble powder, lightweight carbonic acid
20 parts of calcium；B expects by C2Cl6、TiO2With metal by weight 5:1.8:1.2 compositions, each metal press following weight：Mg55
Part, 12 parts, Er10 parts of 12 parts of Ce, La；A expects and B material are by weight 3:1 carries out dispensing.
The application method of the aluminum refining agent of the above-mentioned erbium of lanthanum containing cerium, includes the following steps：
S1, when the temperature of smelting furnace rises to 650-670 DEG C, spray into A material, addition be 1.5g/kg melts, fully stir
It mixes, skim；
S2, when the temperature rise of smelting furnace is to 780-800 DEG C, spray into B material, addition be 0.5g/kg melts, fully stir
It mixes, skim；
S3, routinely technique stand heat preservation, then pour into a mould, cooling and heat treatment.
Using the above-mentioned erbium of lanthanum containing cerium aluminum refining agent refining aluminium alloy when, the H content of aluminum melt can drop to about
The level of 0.10~0.13ml/100gAl；The oxide that can fully remove in melt is mingled with, and slagging-off rate can reach 93% or more；
The molten aluminium alloy pours into aluminium alloy ingots, and gained aluminium alloy ingots fractograph is fine and close, without slag and field trash.
Embodiment 2
A kind of aluminum refining agent of the erbium of lanthanum containing cerium, including A material and B material, wherein A material include the raw material of following parts by weight：
NaCl80 parts, KCl56 parts, CaCl215 parts, NaF30 parts, AlF310 parts, 10 parts of cryolite, 12 parts of marble powder, lightweight carbonic acid
15 parts of calcium；B expects by C2Cl6、TiO2With metal by weight 5:1.5:1.5 compositions, each metal press following weight：Mg50
Part, 15 parts, Er12 parts of 15 parts of Ce, La；A expects and B material are by weight 4:1 carries out dispensing.
The application method of the aluminum refining agent of the above-mentioned erbium of lanthanum containing cerium, includes the following steps：
S1, when the temperature of smelting furnace rises to 670-690 DEG C, spray into A material, addition be 0.2g/kg melts, fully stir
It mixes, skim；
S2, when the temperature rise of smelting furnace is to 790-810 DEG C, spray into B material, addition be 0.05g/kg melts, fully
It stirs, skim；
S3, routinely technique stand heat preservation, then pour into a mould, cooling and heat treatment.
Using the above-mentioned erbium of lanthanum containing cerium aluminum refining agent refining aluminium alloy when, the H content of aluminum melt can drop to about
The level of 0.13~0.16ml/100gAl；The oxide that can fully remove in melt is mingled with, and slagging-off rate can reach 90% or more；
The molten aluminium alloy pours into aluminium alloy ingots, and gained aluminium alloy ingots fractograph is fine and close, without slag and field trash.
Embodiment 3
A kind of aluminum refining agent of the erbium of lanthanum containing cerium, including A material and B material, wherein A material include the raw material of following parts by weight：
NaCl70 parts, KCl50 parts, CaCl210 parts, NaF36 parts, AlF312 parts, 12 parts of cryolite, 18 parts of marble powder, lightweight carbonic acid
25 parts of calcium；B expects by C2Cl6、TiO2With metal by weight 5:2:1 composition, each metal press following weight：Mg60 parts, Ce
10 parts, 10 parts, Er8 parts of La；A expects and B material are by weight 2:1 carries out dispensing.
The application method of the aluminum refining agent of the above-mentioned erbium of lanthanum containing cerium, includes the following steps：
S1, when the temperature of smelting furnace rises to 660-680 DEG C, spray into A material, addition be 2.5g/kg melts, fully stir
It mixes, skim；
S2, when the temperature rise of smelting furnace is to 790-810 DEG C, spray into B material, addition be 1.25g/kg melts, fully
It stirs, skim；
S3, routinely technique stand heat preservation, then pour into a mould, cooling and heat treatment.
Using the above-mentioned erbium of lanthanum containing cerium aluminum refining agent refining aluminium alloy when, the H content of aluminum melt can drop to about
The level of 0.10~0.13ml/100gAl；The oxide that can fully remove in melt is mingled with, and slagging-off rate can reach 92% or more；
The molten aluminium alloy pours into aluminium alloy ingots, and gained aluminium alloy ingots fractograph is fine and close, without slag and field trash.
Claims (1)
1. a kind of aluminum refining agent of the erbium of yttrium containing cerium, it is characterised in that：
The refining agent includes A material and B material, wherein the A material include the raw material of following parts by weight：70~80 parts of NaCl, KCl
50~56 parts, CaCl210~15 parts, 30~36 parts of NaF, AlF310~12 parts, 10~12 parts of cryolite, marble powder 12
~18 parts, 15~25 parts of precipitated calcium carbonate；The B material are by C2Cl6、TiO2With metal by weight 5:1.5~2:1~1.5 group
At the metal is the mixed metal comprising Mg, Ce, La, Er；A expects and B material are used cooperatively, and weight ratio is 2~4:1；
In the B material, each metal presses following weight：Mg50~60 part, 10~15 parts of Ce, La10~15 part, Er8~
12 parts；
The A material include the raw material of following parts by weight：53 parts of 75 parts of NaCl, KCl, CaCl212 parts, 33 parts of NaF, AlF3 11
Part, 11 parts of cryolite, 16 parts of marble powder, 20 parts of precipitated calcium carbonate；
In the B material, each metal presses following weight：Mg55 parts, 12 parts, Er10 parts of 12 parts of Ce, La；
The weight proportion of the A material and B material is 3:1；
The B material are by C2Cl6、TiO2With metal by weight 5:1.8:1.2 composition；
The application method of the aluminum refining agent of the erbium of yttrium containing cerium, includes the following steps：
S1, when the temperature of smelting furnace rises to 650-690 DEG C, spray into A material, addition be 0.1~2.5g/kg melts, fully stir
It mixes, skim；
S2, when the temperature rise of smelting furnace is to 780-810 DEG C, in proportion spray into B material, be sufficiently stirred, skim；
S3, routinely technique stand heat preservation, then pour into a mould, cooling and heat treatment.
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| CN201510687620.1A CN105316508B (en) | 2015-10-21 | 2015-10-21 | A kind of aluminum refining agent of the erbium of lanthanum containing cerium |
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| CN105316508A (en) | 2016-02-10 |
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Effective date of registration: 20210105 Address after: 221100 Mazhuang village, Danji Town, Tongshan District, Xuzhou City, Jiangsu Province Patentee after: TONGSHAN COUNTY FENGHUA INDUSTRY & TRADE Co.,Ltd. Address before: 531400 Road 5, Pingguo Industrial Zone, Baise, the Guangxi Zhuang Autonomous Region. Patentee before: GUANGXI PINGGUO ALUMINIUM ALLOY PRECISION CASTING Co.,Ltd. |