CN107354334A - A kind of preparation method of aluminum refining agent - Google Patents

A kind of preparation method of aluminum refining agent Download PDF

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Publication number
CN107354334A
CN107354334A CN201710424522.8A CN201710424522A CN107354334A CN 107354334 A CN107354334 A CN 107354334A CN 201710424522 A CN201710424522 A CN 201710424522A CN 107354334 A CN107354334 A CN 107354334A
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powder
refining agent
dried
added
modified
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CN201710424522.8A
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CN107354334B (en
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尚秋彤
葛明月
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常州兆威不锈钢有限公司
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    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C1/00Making alloys
    • C22C1/06Making alloys with the use of special agents for refining or deoxidising
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C21/00Alloys based on aluminium

Abstract

The invention belongs to aluminium alloy castings field, and in particular to a kind of preparation method of aluminum refining agent.The present invention first takes shell to crush, potassium chloride is added after shell powder is immersed in acid solution, shell powder must be modified after immersion, mixed-powder will be obtained after the material mixing such as itself and diatomite, it is standby, fetch water again rice straw and weathered coal is added in fermentation tank, add humic acid and yeast bacterium powder is fermented, concentrated after collecting zymotic fluid, cornstarch and nanometer organobentonite are added into concentrate, dry modified corn starch after scattered, pH is adjusted after taking alundum (Al2O3) powder and the mixing of standby mixed-powder, heated after regulation, it is cold to put, separate to dry after sediment, it is compressing after dried object, charing, it can obtain refining agent, refining agent degassing effect produced by the present invention is good, make Fe alloy slag separation thorough during refining, the obvious degree of porosity and trapped oxide reduced in aluminium alloy castings, and materials safety environmental protection.

Description

A kind of preparation method of aluminum refining agent
Technical field
The invention belongs to aluminium alloy castings field, and in particular to a kind of preparation method of aluminum refining agent.
Background technology
In aluminium alloy castings, the reliability of material and the performance of casting can be because the presence of field trash face greatly Threaten.Field trash in aluminum melt can cause hydrogen to be difficult to remove, and influence the effect of degasification.Between field trash and hydrogen in aluminum melt In the presence of interaction, in general, the more, the hydrogen adsorbed also just the more, causes hydrogen content to increase to oxide inclusion in aluminium liquid, Promote the formation of Casting Blowholes;Conversely, the hydrogen content of aluminium liquid can reduce with the reduction of oxide inclusion content.For aluminium For the mechanical property of alloy-steel casting, field trash always directly or indirectly affects the height of performance.The continuity meeting of matrix Destroyed by the presence of field trash, there is provided the core of fatigue crack initiation, cause stress concentration, promote Crack Extension so that zero The anti-fatigue ability of part is reduced, and the mechanical property of the part such as elongation and tensile strength can be seriously degraded, and cause the morning of product Phase fails, and the reliability of material faces great threat.
The conventional production process of refining agent is to be using furnace cupola fritting method and furnace melting method, both approaches at present It will be put into after the natural slag making materials mixing such as lime, bauxite, dolomite, silica in high temperature furnace after fusing, cooling is made after crushing .These modes need to consume the natural resources such as substantial amounts of lime and bauxite, and power consumption is big, and production cost is high, hence in so that in advance The price of molten refining agent is very high, considerably increases the smelting cost of iron and steel enterprise, while caused big after ladle furnace refining Amount refining waste residue also result in the serious pollution of environment and a large amount of wastes of resource.
In addition, the refining agent used in traditional aluminium alloy manufacturing process, the electric conductivity of finished product, thermal conductivity, resistance to can be caused Corrosivity is not strong, and the degree of porosity in the alloy-steel casting produced is higher, and seven apertures in the human head can be produced more than the cast(ing) surface, and oxidation is miscellaneous The ratio of thing is also higher, have impact on the performance of alloy-steel casting, and the product during refining has penetrating odor, for work It is very harmful to make personnel's human body.Sum it up, refining agent is present, slag inclusion is more, oxidization burning loss is big, Fe alloy slag separation is not thorough, degasification Remove the gred the problem of ineffective.
It would therefore be highly desirable to develop a kind of effectively reduction slag inclusion, the refining agent that alloy separation is thorough, degasification slagging-off effect is good has Necessary meaning.
The content of the invention
Present invention mainly solves technical problem:For current aluminium alloy refining agent slag inclusion is more, Fe alloy slag separation is not thorough A kind of the problem of bottom, ineffective degasification slagging-off, there is provided preparation method of aluminum refining agent.
In order to solve the above-mentioned technical problem, the technical solution adopted in the present invention is:
(1)Weigh shell, after crushing shell powder, in mass ratio 1:10 add shell powder in hydrochloric acid, and add chlorination Potassium, heated after stirring, filter residue is obtained after filtering, dried after washing, obtain modified shell powder;
(2)Count in parts by weight, choose respectively 60~70 parts of modified shell powders, 3~5 parts of diatomite, 1~3 part of graphite and 3~ 5 parts of sodium carbonate, add in ball mill, sieved after ball milling, shell powder mixture must be modified after sieving;
(3)Weigh alundum (Al2O3) powder to be added to the water, modified shell powder mixture is added after stirring, pH value is adjusted after mixing For 7.2~7.5;
(4)After pH to be regulated, heating stirring simultaneously freezes placement, centrifuges, and collects sediment, and sediment is put into baking oven and done It is dry to obtain dried object;
(5)In mass ratio 5:1 mixes dried object with water in addition press, the base substrate that must be molded after compacting, is put into baking oven Dry, dried base substrate is placed in retort, carbonizes to obtain carbide, grinding and sieving under nitrogen protection, you can obtain aluminium Alloy refining agent.
Step(1)Described in potassium chloride quality be shell powder quality 1~3%.
Step(2)Described in modification shell powder mixture quality be 10~12 times of alundum (Al2O3) powder quality.
Step(4)Described in cryogenic temperature be -10~-8 DEG C.
Described step(2)In can also add 40~50 parts of modified corn starch mixtures.
The preparation method of described modified corn starch mixture is:(1)In mass ratio 4:1:7, rice straw are weighed respectively Stalk, weathered coal and water are added in fermentation tank, stir to obtain mixed material, then add into fermentation tank 2~4% humic acid and 0.3~ 0.5% yeast bacterium powder, is filtered after fermentation, collects zymotic fluid, and concentrate is obtained after being concentrated under reduced pressure;(2)In mass ratio 2:1, weigh corn Starch is added in concentrate, is stirred after being heated to 80~90 DEG C, and cornstarch 5~7% nanometers of organic swellings of quality are added after stirring Soil, using dispersion machine, 10~15min is dispersed with stirring under 1200~1400r/min rotating speeds, then be freeze-dried, after obtaining dried object Crush, cross 80~100 mesh sieves, obtain modified corn starch mixture.
The beneficial effects of the invention are as follows:
(1)The present invention takes shell to be immersed in after crushing in acid and adds potassium chloride, obtains modified shell powder, the present invention is in oyster shell whiting Gap in add potassium chloride, preparing refining agent can be become field trash by original thick sheet or strip point of tiny rounding The uniform graininess of cloth, there is significant impurities removal degassing effect;
(2)The present invention obtains being modified shell powder mixture after mixing modified oyster shell whiting and diatomite, graphite, sodium carbonate, its As composite refiner, to integrate refining, rotten and refinement multi-function refining flux, first, calcium carbonate and carbonic acid in shell Decomposed after sodium is heated, the carbon dioxide of generation can accelerate hydrogen diffusion, and diatomite and graphite all there is excellent absorption to imitate Fruit, can adsorb to be oxidized with the removal of complex compound and be mingled with absorbed part complexing hydrogen;
(3)The present invention can also add modified corn starch mixture into modified shell powder mixture, by being formed sediment to corn Powder carries out zymotic fluid modification, and humic acid has stronger absorption, exchange, complexing, sequestering power, produces modified cornstarch Big surface area and surface energy, there is stronger adsorption capacity, add the effect that can not only reach clean up in refining agent Fruit, the ability being mingled with is dissolved, the size of alumina inclusion can also be made to diminish, reduce the quantity that oxide is mingled with aluminum melt;
(4)The present invention, which is prepared into refining agent, can either play the refining effect of excellent slagging-off degasification, and and can is enough to be risen to aluminium alloy Make Fe alloy slag separation thorough to the effect of excellent crystal grain thinning, during refining, hence it is evident that reduce degree of porosity in aluminium alloy castings and Trapped oxide.
Embodiment
Weigh shell, after crushing shell powder, in mass ratio 1:10 add shell powder in hydrochloric acid, and add shell The potassium chloride of powder 1~3%, 60~70 DEG C are heated to after being stirred 5~10min, filters, must filter after 20~30min of insulated and stirred Slag, it is put into after spending ion-cleaning 2~4 times in baking oven, 8~10h is dried at a temperature of 60~70 DEG C, is collected dried object, must change Property shell powder;Count in parts by weight, choose 60~70 parts of modified shell powders, 3~5 parts of diatomite, 1~3 part of graphite respectively With 3~5 parts of sodium carbonate, add in ball mill, 240~260 mesh sieves are crossed after 30~50min of ball milling, oyster shell whiting must be modified after sieving Last mixture, it is standby;In mass ratio 4:1:7, rice straw, weathered coal and water are weighed respectively and is added in fermentation tank, are stirred Mixed material is obtained afterwards, then to the humic acid of addition mixed material quality 2~4% and the ferment of mixture quality 0.3~0.5% in fermentation tank Female bacterium powder, ferment 15~20h at a temperature of 35~40 DEG C, is filtered after fermentation, collects zymotic fluid, and press in 0.05~0.07MPa Original volume 20~30% is concentrated under reduced pressure under power, obtains concentrate;In mass ratio 2:1, weigh cornstarch and add in concentrate, add 20~30min is stirred after hot to 80~90 DEG C, cornstarch 5~7% nanometers of organobentonites of quality are added after stirring, are made With dispersion machine, 10~15min is dispersed with stirring under 1200~1400r/min rotating speeds, is freeze-dried after scattered, obtains powder after dried object It is broken, 80~100 mesh sieves are crossed, obtain modified corn starch mixture;The mesh alundum (Al2O3) powder of 8~10g200~220 is weighed to add In 250~300mL deionized waters, alundum (Al2O3) powder quality is added after stirring 20~30min with 600~700r/min rotating speeds 10~12 times of modified shell powder mixtures, stir 10~15min after with the sodium hydroxide solution of mass fraction 1% regulation pH value be 7.2~7.5;After pH to be regulated, 100~110 DEG C are heated to, and 20~30min is stirred with 600~700r/min rotating speeds, Placed after stirring in refrigerator, 3~5h is placed at a temperature of -10~-8 DEG C, is taken out after standing, and is turned in 2000~3000r/min Speed is lower to be centrifuged, and collects sediment, sediment is put into baking oven, must be done after drying 18~20h at a temperature of 70~80 DEG C Dry thing;In mass ratio 5:1 mixes dried object with water, adds in press after mixing 1~2h, is suppressed under 5~7MPa pressure 10~15min, it is put into after obtaining the base substrate of shaping in baking oven, 10~12h is dried at a temperature of 80~90 DEG C, dried base substrate is put In retort, under nitrogen protection, 400~500 DEG C, after insulation carbonizes 2~3h are warming up to 5~7 DEG C/min heating rates It is cooled to room temperature and takes out carbide, be put into pulverizer and crush, 300~320 mesh sieves are crossed after crushing, you can obtains aluminium alloy essence Refine agent.
Example 1
Weigh shell, after crushing shell powder, in mass ratio 1:10 add shell powder in hydrochloric acid, and add shell powder 1% potassium chloride, 60 DEG C are heated to after being stirred 5min, is filtered after insulated and stirred 20min, obtains filter residue, spends ion-cleaning 2 times After be put into baking oven, at a temperature of 60 DEG C dry 8h, collect dried object, obtain modified shell powder;Count, select respectively in parts by weight 60 parts of modified shell powders, 3 parts of diatomite, 1 part of graphite and 3 parts of sodium carbonate are taken, are added in ball mill, 240 are crossed after ball milling 30min Mesh sieve, shell powder mixture must be modified after sieving, it is standby;In mass ratio 4:1:7, weigh respectively rice straw, weathered coal and Water is added in fermentation tank, after being stirred mixed material, then to added in fermentation tank the humic acid of mixed material quality 2% and The yeast bacterium powder of mixture quality 0.3%, ferment 15h at a temperature of 35 DEG C, is filtered after fermentation, collects zymotic fluid, and in 0.05MPa Original volume 20% is concentrated under reduced pressure under pressure, obtains concentrate;In mass ratio 2:1, weigh cornstarch and add in concentrate, heating 20min is stirred after to 80 DEG C, cornstarch 5% nanometer of organobentonite of quality is added after stirring, using dispersion machine, 10min is dispersed with stirring under 1200r/min rotating speeds, is freeze-dried after scattered, is crushed after obtaining dried object, 80 mesh sieves is crossed, jade must be modified Rice starch mixture;Weigh 8g200 mesh alundum (Al2O3)s powder to add in 250mL deionized waters, stirred with 600r/min rotating speeds Alundum (Al2O3) powder 10 times of modified shell powder mixtures of quality are added after 20min, the hydrogen of mass fraction 1% is used after stirring 10min Sodium hydroxide solution regulation pH value is 7.2;After pH to be regulated, 100 DEG C are heated to, and 20min is stirred with 600r/min rotating speeds, Placed after stirring in refrigerator, 3h placed at a temperature of -10 DEG C, is taken out after standing, and centrifuged under 2000r/min rotating speeds, Sediment is collected, sediment is put into baking oven, dried object is obtained after 18h is dried at a temperature of 70 DEG C;In mass ratio 5:1 by drying Thing mixes with water, is added after mixing 1h in press, suppresses 10min under 5MPa pressure, baking oven is put into after obtaining the base substrate of shaping In, 10h is dried at a temperature of 80 DEG C, dried base substrate is placed in retort, under nitrogen protection, is heated up with 5 DEG C/min fast Rate is warming up to 400 DEG C, is cooled to room temperature after insulation charing 2h and takes out carbide, is put into pulverizer and crushes, 300 are crossed after crushing Mesh sieve, you can obtain aluminum refining agent.
Weigh 400gA356 aluminium alloy ingots to be put into graphite-clay crucible, crucible is placed in resistance furnace and carries out melting, is treated Melt adds 4g MAG blocks after being heated to 800 DEG C of temperature, is stirred after 20min using bell jar press-in 250g aluminium skimmings, treats that aluminium skimmings are complete Portion melts, and in the liquid injection metal die after fusing, and adds the essence that the present invention of liquid quality 0.3% is prepared in mould Agent is refined, 5min is sufficiently stirred and molten aluminium alloy is made.
Example 2
Weigh shell, after crushing shell powder, in mass ratio 1:10 add shell powder in hydrochloric acid, and add shell powder 2% potassium chloride, 65 DEG C are heated to after being stirred 8min, is filtered after insulated and stirred 25min, obtains filter residue, spends ion-cleaning 3 times After be put into baking oven, at a temperature of 65 DEG C dry 9h, collect dried object, obtain modified shell powder;Count, select respectively in parts by weight 65 parts of modified shell powders, 4 parts of diatomite, 2 parts of graphite and 4 parts of sodium carbonate are taken, are added in ball mill, 250 are crossed after ball milling 40min Mesh sieve, shell powder mixture must be modified after sieving, it is standby;In mass ratio 4:1:7, weigh respectively rice straw, weathered coal and Water is added in fermentation tank, after being stirred mixed material, then to added in fermentation tank the humic acid of mixed material quality 3% and The yeast bacterium powder of mixture quality 0.4%, ferment 18h at a temperature of 38 DEG C, is filtered after fermentation, collects zymotic fluid, and in 0.06MPa Original volume 25% is concentrated under reduced pressure under pressure, obtains concentrate;In mass ratio 2:1, weigh cornstarch and add in concentrate, heating 25min is stirred after to 85 DEG C, cornstarch 6% nanometer of organobentonite of quality is added after stirring, using dispersion machine, 13min is dispersed with stirring under 1300r/min rotating speeds, is freeze-dried after scattered, is crushed after obtaining dried object, 90 mesh sieves is crossed, jade must be modified Rice starch mixture;Weigh 9g210 mesh alundum (Al2O3)s powder to add in 280mL deionized waters, stirred with 650r/min rotating speeds Alundum (Al2O3) powder 11 times of modified shell powder mixtures of quality are added after 25min, the hydrogen of mass fraction 1% is used after stirring 13min Sodium hydroxide solution regulation pH value is 7.3;After pH to be regulated, 105 DEG C are heated to, and 25min is stirred with 650r/min rotating speeds, Placed after stirring in refrigerator, 4h is placed at a temperature of -9 DEG C, is taken out after standing, and centrifuged under 2500r/min rotating speeds, received Collect sediment, sediment is put into baking oven, dried object is obtained after 19h is dried at a temperature of 75 DEG C;In mass ratio 5:1 by dried object Mixed with water, added after mixing 2h in press, suppress 13min under 6MPa pressure, be put into after obtaining the base substrate of shaping in baking oven, 11h is dried at a temperature of 85 DEG C, dried base substrate is placed in retort, under nitrogen protection, with 6 DEG C/min heating rate liters Temperature is cooled to room temperature after insulation charing 3h and takes out carbide, be put into pulverizer and crush, 310 mesh are crossed after crushing to 450 DEG C Sieve, you can obtain aluminum refining agent.
Weigh 450gA356 aluminium alloy ingots to be put into graphite-clay crucible, crucible is placed in resistance furnace and carries out melting, is treated Melt adds 5g MAG blocks after being heated to 830 DEG C of temperature, is stirred after 25min using bell jar press-in 300g aluminium skimmings, treats that aluminium skimmings are complete Portion melts, and in the liquid injection metal die after fusing, and adds the essence that the present invention of liquid quality 0.4% is prepared in mould Agent is refined, molten aluminium alloy is made after being sufficiently stirred 7min.
Example 3
Weigh shell, after crushing shell powder, in mass ratio 1:10 add shell powder in hydrochloric acid, and add shell powder 3% potassium chloride, 70 DEG C are heated to after being stirred 10min, is filtered after insulated and stirred 30min, obtains filter residue, spends ion-cleaning 4 times After be put into baking oven, at a temperature of 70 DEG C dry 10h, collect dried object, obtain modified shell powder;Count in parts by weight, respectively 70 parts of modified shell powders, 5 parts of diatomite, 3 parts of graphite and 5 parts of sodium carbonate are chosen, are added in ball mill, mistake after ball milling 50min 260 mesh sieves, shell powder mixture must be modified after sieving, it is standby;In mass ratio 4:1:7, rice straw, weathered coal are weighed respectively Added with water in fermentation tank, mixed material is obtained after being stirred, then to the humic acid of addition mixed material quality 4% in fermentation tank With the yeast bacterium powder of mixture quality 0.5%, ferment 20h at a temperature of 40 DEG C, is filtered after fermentation, collection zymotic fluid, and Original volume 30% is concentrated under reduced pressure under 0.07MPa pressure, obtains concentrate;In mass ratio 2:1, weigh cornstarch and add concentrate In, 30min is stirred after being heated to 90 DEG C, cornstarch 7% nanometer of organobentonite of quality is added after stirring, using scattered Machine, 15min is dispersed with stirring under 1400r/min rotating speeds, is freeze-dried after scattered, is crushed after obtaining dried object, crossed 100 mesh sieves, obtain Modified corn starch mixture;Weigh 10g220 mesh alundum (Al2O3)s powder to add in 300mL deionized waters, turned with 700r/min Alundum (Al2O3) powder 12 times of modified shell powder mixtures of quality are added after speed stirring 30min, are divided after stirring 15min with quality Several 1% sodium hydroxide solution regulation pH value are 7.5;After pH to be regulated, 110 DEG C are heated to, and be stirred with 700r/min rotating speeds 30min, placed after stirring in refrigerator, 5h is placed at a temperature of -8 DEG C, is taken out after standing, and is centrifuged under 3000r/min rotating speeds Separation, sediment is collected, sediment is put into baking oven, dried object is obtained after 20h is dried at a temperature of 80 DEG C;In mass ratio 5:1 Dried object is mixed with water, is added after mixing 2h in press, is suppressed 15min under 7MPa pressure, put after obtaining the base substrate of shaping Enter in baking oven, 12h is dried at a temperature of 90 DEG C, dried base substrate is placed in retort, under nitrogen protection, with 7 DEG C/min Heating rate is warming up to 500 DEG C, is cooled to room temperature after insulation charing 3h and takes out carbide, is put into pulverizer and crushes, crush 320 mesh sieves are crossed afterwards, you can obtain aluminum refining agent.
Weigh 500gA356 aluminium alloy ingots to be put into graphite-clay crucible, crucible is placed in resistance furnace and carries out melting, is treated Melt adds 6g MAG blocks after being heated to 850 DEG C of temperature, is stirred after 30min using bell jar press-in 350g aluminium skimmings, treats that aluminium skimmings are complete Portion melts, and in the liquid injection metal die after fusing, and adds the essence that the present invention of liquid quality 0.5% is prepared in mould Agent is refined, 10min is sufficiently stirred and molten aluminium alloy is made.
Reference examples:It is primary raw material by silica flour, attapulgite, after high temperature melting, crushes to obtain refining agent, add aluminium alloy Molten aluminium alloy is made in melt.
By the molten aluminium alloy of aluminum refining agent refining gained obtained by above-described embodiment and reference examples refining agent refining institute The molten aluminium alloy obtained is detected, as a result as shown in Table 1.
Table one:
Oxide inclusion grade Hydrogen content in melt(mL/100g)
Reference examples >2 grades >0.16
Example 1 2 grades 0.13
Example 2 1 grade 0.10
Example 3 1 grade 0.12
As seen from the above table, aluminum refining agent degasification slagging-off effect of the present invention is good, and alloy separation is thorough, and oxide inclusion is 1~2 Grade, hydrogen content is 0.10~0.13mL/100g in melt.

Claims (6)

1. a kind of preparation method of aluminum refining agent, it is characterised in that specifically preparation process is:
(1)Weigh shell, after crushing shell powder, in mass ratio 1:10 add shell powder in hydrochloric acid, and add chlorination Potassium, heated after stirring, filter residue is obtained after filtering, dried after washing, obtain modified shell powder;
(2)Count in parts by weight, choose respectively 60~70 parts of modified shell powders, 3~5 parts of diatomite, 1~3 part of graphite and 3~ 5 parts of sodium carbonate, add in ball mill, sieved after ball milling, shell powder mixture must be modified after sieving;
(3)Weigh alundum (Al2O3) powder to be added to the water, modified shell powder mixture is added after stirring, pH value is adjusted after mixing For 7.2~7.5;
(4)After pH to be regulated, heating stirring simultaneously freezes placement, centrifuges, and collects sediment, and sediment is put into baking oven and done It is dry to obtain dried object;
(5)In mass ratio 5:1 mixes dried object with water in addition press, the base substrate that must be molded after compacting, is put into baking oven Dry, dried base substrate is placed in retort, carbonizes to obtain carbide, grinding and sieving under nitrogen protection, you can obtain aluminium Alloy refining agent.
A kind of 2. preparation method of aluminum refining agent according to claim 1, it is characterised in that:Step(1)Described in Potassium chloride quality be shell powder quality 1~3%.
A kind of 3. preparation method of aluminum refining agent according to claim 1, it is characterised in that:Step(2)Described in Modification shell powder mixture quality be 10~12 times of alundum (Al2O3) powder quality.
A kind of 4. preparation method of aluminum refining agent according to claim 1, it is characterised in that:Step(4)Described in Cryogenic temperature be -10~-8 DEG C.
A kind of 5. preparation method of aluminum refining agent according to claim 1, it is characterised in that:Described step(2) In can also add 40~50 parts of modified corn starch mixtures.
A kind of 6. preparation method of aluminum refining agent according to claim 5, it is characterised in that:Described modified corn The preparation method of starch mixture is:(1)In mass ratio 4:1:7, rice straw, weathered coal and water are weighed respectively adds fermentation tank In, mixed material is stirred to obtain, then 2~4% humic acid and 0.3~0.5% yeast bacterium powder are added into fermentation tank, filtered after fermentation, Zymotic fluid is collected, concentrate is obtained after being concentrated under reduced pressure;(2)In mass ratio 2:1, weigh cornstarch and add in concentrate, be heated to Stirred after 80~90 DEG C, cornstarch 5~7% nanometers of organobentonites of quality are added after stirring, using dispersion machine, 1200~ 10~15min is dispersed with stirring under 1400r/min rotating speeds, then is freeze-dried, is crushed after obtaining dried object, 80~100 mesh sieves is crossed, must change Property Corn Starch Blends.
CN201710424522.8A 2017-06-07 2017-06-07 A kind of preparation method of aluminum refining agent Active CN107354334B (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103014397A (en) * 2012-12-05 2013-04-03 安徽徽铝铝业有限公司 Preparation method of diatomite-doped refining agent used for smelting aluminium alloy sections
CN103088226A (en) * 2012-12-05 2013-05-08 安徽徽铝铝业有限公司 Preparation method of refining agent for melting aluminum alloy section doped with plant ash
CN106086497A (en) * 2016-06-28 2016-11-09 陈建峰 A kind of method utilizing Ovum crusta Gallus domesticus carrier to prepare refining agent

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103014397A (en) * 2012-12-05 2013-04-03 安徽徽铝铝业有限公司 Preparation method of diatomite-doped refining agent used for smelting aluminium alloy sections
CN103088226A (en) * 2012-12-05 2013-05-08 安徽徽铝铝业有限公司 Preparation method of refining agent for melting aluminum alloy section doped with plant ash
CN106086497A (en) * 2016-06-28 2016-11-09 陈建峰 A kind of method utilizing Ovum crusta Gallus domesticus carrier to prepare refining agent

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