CN102732740B - Nano-material interalloy modifier and preparation method thereof, and alloy preparation method - Google Patents
Nano-material interalloy modifier and preparation method thereof, and alloy preparation method Download PDFInfo
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- CN102732740B CN102732740B CN201210218509.4A CN201210218509A CN102732740B CN 102732740 B CN102732740 B CN 102732740B CN 201210218509 A CN201210218509 A CN 201210218509A CN 102732740 B CN102732740 B CN 102732740B
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Abstract
The present invention relates to a nano-material interalloy modifier and a preparation method thereof, and an alloy preparation method. The nano-material interalloy modifier comprises the following components, by mass, 5-15% of nano-powder, 1-3% of magnesium powder, 30-40% of sodium potassium ore powder, 40-50% of iron powder, 3-8% of hydroxypropyl cellulose, and 2-4% of water. The nano-material interalloy modifier is not easily oxidized and polymerized during processes of mixing and preparation, has a sufficient strength, is not easily decomposed during using and transportation, and can be rapidly molten when the nano-material interalloy modifier is added to a liquid steel, hot iron, or a nonferrous alloy liquid.
Description
Technical field
The invention relates to metallurgical technology field, especially about iron and steel and non-ferrous metal alloy technical field, is about a kind of nano material master alloy alterant and preparation method and alloy preparation method specifically.
Background technology
At present, along with the continuing to increase of China's output of steel, consequent high energy consumption and high pollution problem are also on the rise, and in the face of such trend, how keeping, on the basis of existing output of steel, making great efforts to improve the performance of steel, become the direction of current industry research.
For improving performance and the intensity of metallic substance, various countries have all carried out the exploitation of steel of new generation, at present both at home and abroad the ultra-fine grain steel of developing have high strength, corrosion-resistant, the feature such as can weld, but the production technique of these class steel is comparatively complicated, need to accurately control technological process, exceeded the existing throughput of steel mill, and production cost is significantly improved.
At present at metallurgy industry, conventionally in iron and steel and non-ferrous alloy liquid, add various nucleating agents, nodulizing agent, scavenging agent and rare earth alterative realize pressure and final deoxidation, pure iron and steel and non-ferrous alloy liquid, formation and the increase crystallization nuclei of iron and steel and non-ferrous metal, change solidify after the effect such as graphite or matrix form.Wherein alterant refers to as improving material structure and performance and in iron and steel or non-ferrous alloy liquid, adds the additive containing one or more trace elements and alloy.
Existing various alterant can be divided into three major types substantially: a class is to take the additive that various alloying constituents are main body.Nucleating agent in the grey cast iron that Si-Fe powder is main body as take; Take scavenging agent that Si-Ca and Na, KET etc. are main body etc.They can play to a certain extent the effect that changes graphite shape, crystal grain thinning, purification iron and steel liquid and change tissue in iron and steel liquid; Equations of The Second Kind alterant is mainly to take the additive (Ce, La etc.) that various rare earth elements (Re) are main body.Relatively conventional as rare earth magnesium nodularizer, variously take the alterant that light, heavy rare earth element or mixture be main body and also in industry, be applied, they can make the spheroidization of graphite in cast iron or the tissue morphology in steel is changed, thereby reach the object of improving ferrous materials performance.This class nucleating agent, nodulizing agent or the general add-on of alterant are more, and particle size is large (millimeter or centimetre-sized) also, and mixing and preparation method are fairly simple; Before in joining iron and steel liquid, need preheating and baking; Add fashionable or add after must stir or adopt special-purpose treatment facility guarantee to be uniformly distributed.In addition, it is single that their roles in iron and steel liquid compare finite sum, for example, nucleating agent and nodulizing agent are mainly that graphite refinement and change form are worked, scavenging agent has been mainly deoxidation and purify hot metal effect, and the ductility of material and toughness are made moderate progress, and does not generally play strengthening effect.Therefore, its range of application is narrow, and the kind of alterant is also less.
In recent years, nano material has obtained gradually paying attention to and application in many scientific domains, and nano material is that its granular size is generally no more than 50nm(nanometer by the molecular solid material of nanoparticle of nanometer scale), 1nm=10
-9mm(millimeter), have many special performances, as toughness is high, wear resistance is high, is with a wide range of applications.Nano material (TiN, SiC, TiC etc.) dispersion size is superfine, have higher hardness and have huge surperficial energy.Nanometer alterant has been broken some the conventional rules in the production of iron and steel high-abrasive material.Conventionally, in iron and steel high-abrasive material strengthening process, improving hardness must follow toughness to decline, but owing to the high surface of Nanoalloy alterant and it playing dispersion hardening effect in crystal grain thinning process simultaneously, so often can reach the net effect that improves alloy rigidity and toughness simultaneously.
Because nano material has high rigidity, high temperature resistant, granularity is little (being less than 50nm), the feature such as surface can be large, good dispersity and surperficial ZETA current potential low (18.0mv), there is better bonding force with metal, have than the stronger crystal grain thinning of general alterant and dispersion-strengthened action, can obviously change the weave constructions such as metallic matrix and carbide.Therefore, this alterant and this technology can significantly improve hardness, strength and ductility and the toughness of iron and steel and non-ferrous alloy material, thereby greatly improve the quality of original ferrous materials and reduce rare and content noble element, or reduce, original thermal treatment process that conforms to the principle of simplicity, greatly reduce production costs.
Tiny and active due to nano material, how nanoparticle being joined in ferrous materials liquid is a very difficult problem all the time, and the application of nano material is subject to certain restriction always.
Metal-base nanometer composite material (Metal matrix nanocom-posites, MMNC
s) be exactly that nano particle is fused in metallic matrix, nanoparticle and metallic matrix are combined closely, improve the performance of metallic matrix, as added nonmetal nano powder in steel, can roll up the external heterogeneous nuclei in molten steel, play the effect of dispersion, greatly improve the performance of steel, improve the quality of steel.All for metal and nano composite material and preparation technology thereof, develop both at home and abroad at present, current main method has: mechanical alloying method (Mechanical alloying, MA), melt spinning method (Meltspun, MS), powder metallurgic method (Powder metallurgy, PM), machinery brings out self propagating high temperature building-up reactions method (Self-propagatinghigh-temperature synthesis, SHS), vacuum-evaporation inert gases agglomeration and vacuum in situ pressurization (Inert gas con-densation method combined with vacuum co-evaporation andin-situ compaction, ICVCSC) etc.
Chinese patent application the 200510011567.4th discloses a kind of nano-particle reinforcement high-toughness casting magnesium alloy and has prepared moulding process.Chinese patent application the 200510127307.9th discloses a kind of composite material with nano silicon carbide granulate strengthening aluminium base and preparation method.Wherein the volume of nano silicon carbide granulate accounts for the 0.5%-20% of raw material volume, and the volume of aluminium powder accounts for the 80%-99.5% of raw material volume.The disclosed content of present patent application is herein incorporated, and usings as prior art of the present invention.
In the prior art, adopt the argon-blowing device of a kind of specialized designs and manufacture that nano material is joined in iron and steel and non-ferrous alloy liquid, principle of negative pressure or gunite while utilizing blowing argon gas are brought nanometer powder in liquid into, thereby reach the object of improving performance.This advantage of Method and process that adds is: nanometer powder can directly add under Argon state, and nano material is difficult for loss, and can guarantee the primary characteristic of nano material, can not be oxidized and polymerization.But its weak point is: nano material easily swims in iron and steel fluid surface and mixes with steel slag, and add-on is wayward, and Argon pressure and the bad grasp of spray technology; Argon-blowing device is heavier, and operation is more loaded down with trivial details at the scene, and the loss of Argon pipe is large, increases production cost.
General master alloy alterant be mostly by powder metallurgy heat or common mixing drawing method synthetic, add-on is more, mostly more than 1%.Chinese patent application the 200910144385.8th discloses the preparation technology of a kind of wearable ceramic bar orientation arrangement reinforced steel or iron-based casting composite material, Chinese patent application the 200910144386.2nd discloses a kind of preparation technology of nano-ceramic powder dispersing and strengthening cast alloy, it is in 100% nano powder, as borax, sodium carbonate and the water of binding agent, (ratio is: 100:1:0.5:7-10) in interpolation, Agitation and mixing under heated condition, make bulk or granular, thereby be added in smelting furnace or casting ladle and obtain casting alloy by the add-on of 0.2-0.4%.Because nano material is very tiny and have larger surface-area, proportion is also very light, be simple nano material is mixed, bondd and be pressed into after goods, with this mixing material, join and can be easy to swim in fluid surface while going in iron and steel liquid, mix with bits and lose effect, too much nano material add-on not only can not play crystallization to core and dispersion-strengthened action simultaneously, can in iron and steel liquid, produce the deleterious effects such as slag inclusion on the contrary.Powder metallurgy process nano material in heating and pressing process is easy to produce oxidation and polymerization and loses its proper property in addition.
Summary of the invention
How to adopt a kind of simple and effective method and technical measures to prepare a kind of nano material master alloy alterant, and how nano material is joined and in iron and steel and non-ferrous alloy liquid, go and obtain good and stable iron and steel and the tissue of non-ferrous alloy material and the actual effect of performance improved, become current technical problem urgently to be resolved hurrily.For overcoming problems of the prior art, the invention provides a kind of nano material master alloy alterant and preparation method and alloy preparation method.
The invention provides a kind of nano material master alloy alterant, described nano material master alloy alterant is comprised of following component by weight percentage: nano-powder 5%～15%, and wherein, described nano-powder is TiN, SiC, TiC or its arbitrary combination; Magnesium powder 1%～3%; Potassium sodium breeze 30%～40%; Iron powder 40%～50%; Hydroxylated cellulose 3%～8%; Moisture content 2%～4%.
The present invention also provides a kind of method of preparing nano material master alloy alterant, and described method comprises the following steps: (a) nano-powder and potassium sodium breeze are mixed to formation mixed powder; (b) described mixed powder is mixed to formation composite grain with iron powder and magnesium powder; (c) by described composite grain and hydroxylated cellulose and water mixing and stirring; (d) by the composite grain coldmoulding after stirring.
The present invention also provides a kind of alloy preparation method, and described method comprises the following steps: (a) nano material master alloy alterant claimed in claim 1 is removed the gred and pre-deoxidation processing; (b) by described nano material master alloy alterant according to joining in the smelting furnace that is about to come out of the stove at 0.02%～0.04% of molten steel, molten iron or non-ferrous alloy liquid weight, or with stream, join in pouring ladle after molten steel, molten iron or non-ferrous alloy liquid are come out of the stove outflow 1/3, or directly join in casting mold; (c) by molten steel, molten iron or the moulding of non-ferrous alloy liquid Quick pouring carried out after alterant processing.
Nano material master alloy alterant provided by the invention is difficult for oxidized and polymerization in the process of mixing and preparing, there is enough intensity simultaneously, in using and transporting, can keep enough intensity, be difficult for decomposing, in the time of in joining molten steel, molten iron or non-ferrous alloy liquid, can melt rapidly, be conducive to the dispersion of nano material.
Add after nano material master alloy alterant provided by the invention, can increase substantially hardness, strength and ductility and the toughness of wearable cast steel, cast iron, make grain fineness number refinement more, greatly improve the quality of original ferrous materials.And can reduce rare and content noble element, or reduce, original thermal treatment process that conforms to the principle of simplicity, greatly reduce production costs.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms the application's a part, does not form limitation of the invention.In the accompanying drawings:
Fig. 1 is a kind of method flow diagram of preparing nano material master alloy alterant that the embodiment of the present invention provides.
Fig. 2 A and Fig. 2 B are the schematic diagram of the nanometer master alloy alterant of the compression moulding that provides of the embodiment of the present invention.
Fig. 3 is a kind of method flow diagram of preparing nano material master alloy alterant that the embodiment of the present invention provides.
Fig. 4 is a kind of alloy preparation method schema that the embodiment of the present invention provides.
Fig. 5 be the embodiment of the present invention provide in Mn18Cr2 high mangaenese steel, add the impact toughness collection of illustrative plates (as cast condition) after nano material master alloy alterant.
Fig. 6 be the embodiment of the present invention provide in Mn18Cr2 high mangaenese steel, add the impelling strength collection of illustrative plates (1100 degrees Celsius of quenchings) after nano material master alloy alterant.
Fig. 7 and Fig. 8 are respectively the grain fineness number schematic diagram that adds nano material master alloy alterant front and back in Mn18Cr2 high mangaenese steel that the embodiment of the present invention provides.
Fig. 9 and Figure 10 are respectively the electromicroscopic photograph that adds nano material master alloy alterant front and back in Mn18Cr2 high mangaenese steel and the energy spectrograms that the embodiment of the present invention provides.
Figure 11 be the embodiment of the present invention provide in 42CrMo Medium Alloy Steel, add the tensile break strength б b collection of illustrative plates after nano material master alloy alterant, Figure 12 be the embodiment of the present invention provide in 42CrMo Medium Alloy Steel, add the hardness HRC collection of illustrative plates after nano material master alloy alterant.
Figure 13 be the embodiment of the present invention provide in middle chromium (Cr7) cast iron, add the impact toughness aK collection of illustrative plates after nano material master alloy alterant.
Figure 14 be the embodiment of the present invention provide in middle chromium (Cr7) cast iron, add the hardness HRC collection of illustrative plates after nano material master alloy alterant.
Figure 15 be the embodiment of the present invention provide in Medium Manganese Steel (Mn8), add the impact toughness collection of illustrative plates after nano material master alloy alterant.
Figure 16 and Figure 17 are respectively the variation diagrams of organizing that adds nano material master alloy alterant front and back in engineering machinery steel that the embodiment of the present invention provides.
Embodiment
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with embodiment and accompanying drawing, the present invention is described in further details.At this, exemplary embodiment of the present invention and explanation thereof are used for explaining the present invention, but not as a limitation of the invention.
Embodiment mono-
Fig. 1 is a kind of method flow diagram of preparing nano material master alloy alterant that the embodiment of the present invention provides, and as shown in Figure 1, described method comprises the following steps:
S101, mixes formation mixed powder by nano-powder and potassium sodium breeze.
In embodiments of the present invention, natural characteristics in view of nano-powder, in preparing nanometer powder master alloy process, to avoid as far as possible oxidation, polymerization and the pyrolytic decomposition of nano-powder material, can select the starting material (being preferably alclad) of the nanometer powder of outsourcing nickel or alclad thin layer, make nano-powder material unlikely over oxidation and polymerization in mixing and preparation process.
The configuration TiN nanometer master alloy alterant of take below describes as example, and in other embodiments of the invention, nano-powder can be TiN, SiC, TiC or its arbitrary combination, and particle diameter of nanometer powder is less than 50nm.In embodiments of the present invention, by weight percentage, TiN nanometer master alloy alterant is comprised of following component: TiN nano-powder 5%～15%; Magnesium powder 1%～3%; Potassium sodium breeze 30%～40%; Iron powder 40%～50%; Hydroxylated cellulose 3%～8%; Moisture content 2%～4%.Preferably, in the present embodiment, TiN nanometer master alloy alterant is comprised of following component: TiN nano-powder 10%; Magnesium powder 2%; Potassium sodium breeze 35%; Iron powder 45%; Hydroxylated cellulose 5%; Moisture content 3%.
In embodiments of the present invention, first by above formula, weigh and get the raw materials ready, the TiN nano-powder weighing up is mixed with potassium sodium breeze, form mixed powder.
S102, mixes described mixed powder formation composite grain with iron powder.
In embodiments of the present invention, TiN nano-powder step S101 being generated mixes formation composite grain with the mixed powder of potassium sodium breeze with iron powder and magnesium powder.
S103, by described composite grain and hydroxylated cellulose and water mixing and stirring.
In embodiments of the present invention, the composite grain of TiN nano-powder, potassium sodium breeze, iron powder and the magnesium powder that step S102 is generated and hydroxylated cellulose and water stir in stirrer, and preferred, churning time can be 20 minutes.
S104, by the composite grain coldmoulding after stirring.
In embodiments of the present invention, put the composite grain stirring in step S103 into the press compression moulding of colding pressing, can adopt the nanometer master alloy alterant of the mould compacting different size of different shapes and size.Fig. 2 A and Fig. 2 B are the schematic diagram of the nanometer master alloy alterant of the compression moulding that provides of the embodiment of the present invention, as shown in Figure 2 A and 2 B, the nanometer master alloy alterant of compression moulding can be the slice shape of cylinder shape or the Φ 3mm X10mm of Φ 10mm, in other embodiments of the invention, the demand that nanometer master alloy alterant also can be used according to reality is pressed into other shapes.
Fig. 3 is a kind of method flow diagram of preparing nano material master alloy alterant that the embodiment of the present invention provides, and as shown in Figure 3, is with the method difference shown in Fig. 1, and the method shown in Fig. 3 is further comprising the steps of:
S105, dries the composite grain after coldmoulding or air-set, and the temperature of oven dry is less than 80 degrees Celsius.
In embodiments of the present invention, the nanometer master alloy alterant of compression moulding in step S104 can be carried out to drying and processing, the temperature of oven dry should be less than 80 degrees Celsius, also can adopt the method for air-set to process nanometer master alloy alterant.
Nano material master alloy alterant provided by the invention is difficult for oxidized and polymerization in the process of mixing and preparing, there is enough intensity simultaneously, in using and transporting, can keep enough intensity, be difficult for decomposing, in the time of in joining molten steel, molten iron or non-ferrous alloy liquid, can melt rapidly, be conducive to the dispersion of nano material.
Add after nano material master alloy alterant provided by the invention, can increase substantially hardness, strength and ductility and the toughness of wearable cast steel, cast iron, make grain fineness number refinement more, greatly improve the quality of original ferrous materials.And can reduce rare and content noble element, or reduce, original thermal treatment process that conforms to the principle of simplicity, greatly reduce production costs.
Embodiment bis-
Fig. 4 is a kind of alloy preparation method schema that the embodiment of the present invention provides, and as shown in Figure 4, alloy preparation method comprises the following steps:
S401, nano material master alloy alterant removes the gred and pre-deoxidation is processed;
In embodiments of the present invention, nano material master alloy alterant can be the nano material master alloy alterant generating in embodiment, before nano material master alloy alterant is joined to molten steel, molten iron or non-ferrous alloy liquid, must carry out sufficient pre-deoxidation processing to nano material master alloy alterant, and recrement must be pulled out totally.
S402, by described nano material master alloy alterant according to joining in the smelting furnace that is about to come out of the stove at 0.02%～0.04% of molten steel, molten iron or non-ferrous alloy liquid weight, or come out of the stove after flowing out 1/3 and join in pouring ladle with stream at molten steel, molten iron or at non-ferrous alloy liquid, or directly join in casting mold;
In embodiments of the present invention, the alterant of certain proportion (being generally the add-on of 0.02-0.04%) is added in smelting furnace tapping, molten iron or before non-ferrous alloy liquid or with stream in pouring ladle (to have gone out after 1/3 liquid stream), and the alterant adding does not allow baking and preheating.
S403, by molten steel, molten iron or the moulding of non-ferrous alloy liquid Quick pouring carried out after alterant processing.
Nano material master alloy alterant provided by the invention is difficult for oxidized and polymerization in the process of mixing and preparing, there is enough intensity simultaneously, in using and transporting, can keep enough intensity, be difficult for decomposing, in the time of in joining molten steel, molten iron or non-ferrous alloy liquid, can melt rapidly, be conducive to the dispersion of nano material.
Add after nano material master alloy alterant provided by the invention, can increase substantially hardness, strength and ductility and the toughness of wearable cast steel, cast iron, make grain fineness number refinement more, greatly improve the quality of original ferrous materials.And can reduce rare and content noble element, or reduce, original thermal treatment process that conforms to the principle of simplicity, greatly reduce production costs.
Fig. 5 be the embodiment of the present invention provide in Mn18Cr2 high mangaenese steel, add the impact toughness collection of illustrative plates (as cast condition) after nano material master alloy alterant, Fig. 6 be the embodiment of the present invention provide in Mn18Cr2 high mangaenese steel, add the impelling strength collection of illustrative plates (1100 degrees Celsius of quenchings) after nano material master alloy alterant, as shown in the figure, add after nanometer alterant, Mn18Cr2 high mangaenese steel is comparable does not add that the impact toughness of material as cast condition is the highest improves 70%, improves 76% after thermal treatment.
Fig. 7 and Fig. 8 are respectively the grain fineness number schematic diagram that adds nano material master alloy alterant front and back in Mn18Cr2 high mangaenese steel that the embodiment of the present invention provides, as shown in the figure, add after nano material master alloy alterant, the grain fineness number of Mn18Cr2 high mangaenese steel can refinement 1 grade.
Fig. 9 and Figure 10 are respectively the electromicroscopic photograph that adds nano material master alloy alterant front and back in Mn18Cr2 high mangaenese steel and the energy spectrograms that the embodiment of the present invention provides, as shown in Figure 9 and Figure 10, detect be positioned at top be typical case square white crystal through electronic probe, confirm as the polymer/nanometer powder that contains N and Ti.Figure 11 be the embodiment of the present invention provide in 42CrMo Medium Alloy Steel, add the tensile break strength б b collection of illustrative plates after nano material master alloy alterant, Figure 12 be the embodiment of the present invention provide in 42CrMo Medium Alloy Steel, add the hardness HRC collection of illustrative plates after nano material master alloy alterant, as shown in the figure, add after nanometer alterant, the comparable material that do not add of the tensile break strength of 42CrMo Medium Alloy Steel and hardness can improve 19%.
Figure 13 be the embodiment of the present invention provide in middle chromium (Cr7) cast iron, add the impact toughness aK collection of illustrative plates after nano material master alloy alterant, Figure 14 be the embodiment of the present invention provide in middle chromium (Cr7) cast iron, add the hardness HRC collection of illustrative plates after nano material master alloy alterant, as shown in the figure, add after nanometer alterant, the impact toughness of middle chromium (Cr7) cast iron is comparable do not add material as cast condition improve 15%, after thermal treatment, improve 32%; Its hardness of cast form improves 6.6%.
Figure 15 be the embodiment of the present invention provide in Medium Manganese Steel (Mn8), add the impact toughness collection of illustrative plates after nano material master alloy alterant, as shown in the figure, add after nanometer alterant the experiment results proved in Medium Manganese Steel (Mn8): its impact toughness has improved 64%.
Figure 16 and Figure 17 are respectively the variation diagrams of organizing that adds nano material master alloy alterant front and back in engineering machinery steel that the embodiment of the present invention provides, as shown in the figure, find that grain fineness number has the trend that obviously attenuates and improve tissue add nanometer alterant in engineering machinery steel after.
The economical effectiveness of using nanometer master alloy alterant to produce in iron and steel and non-ferrous alloy liquid can show aspect two.The one, can greatly improve performance standard and the product quality of original ferrous materials, increase the competitive power of domestic and international market; Thereby next is to reduce precious alloy content or the minimizing of original description of materials and original thermal treatment process program that conforms to the principle of simplicity by improving some performance of ferrous materials, thereby reach the effect reducing production costs with save energy.For example, effect how to pass through nanometer alterant is by Medium Manganese Steel (Mn8) replacement high mangaenese steel (Mn13 or Mn18Cr2); With medium chrome cast iron (Cr7), replace rich chromium cast iron (Cr15); Thereby or can replace heat-treated steel cost-saving with as cast condition steel, increase the benefit.Like this, one ton of steel of every production, the 1200 yuan of left and right that can save production cost.Within 1 year, can save several hundred million yuan.In addition, nano material master alloy alterant is a kind of high-tech energy saving environmental protection product, also can further develop more series product thereupon, meets the further demand of the national economic development.
Above-described embodiment; object of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the foregoing is only the specific embodiment of the present invention; the protection domain being not intended to limit the present invention; within the spirit and principles in the present invention all, any modification of making, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (9)
1. a nano material master alloy alterant, is characterized in that, described nano material master alloy alterant is comprised of following component by weight percentage:
Nano-powder 5%～15%, wherein, described nano-powder is TiN, SiC, TiC or its arbitrary combination;
Magnesium powder 1%～3%;
Potassium sodium breeze 30%～40%;
Iron powder 40%～50%;
Hydroxylated cellulose 3%～8%;
Moisture content 2%～4%.
2. nano material master alloy alterant as claimed in claim 1, is characterized in that, described particle diameter of nanometer powder is less than 50nm.
3. nano material master alloy alterant as claimed in claim 1, is characterized in that, in the situation that described nano-powder is TiN, the content of described nano-powder is 10%, the content of described magnesium powder is 2%, and the content of described iron powder is 45%, and the content of described potassium sodium breeze is 35%.
4. nano material master alloy alterant as claimed in claim 1, is characterized in that, the content of described hydroxylated cellulose is 5%.
5. the method for preparation nano material master alloy alterant claimed in claim 1, is characterized in that, described method comprises the following steps:
(a) nano-powder and potassium sodium breeze are mixed to formation mixed powder;
(b) described mixed powder is mixed to formation composite grain with iron powder and magnesium powder;
(c) by described composite grain and hydroxylated cellulose and water mixing and stirring;
(d) by the composite grain coldmoulding after stirring.
6. the method for preparing nano material master alloy alterant as claimed in claim 5, is characterized in that, described method also comprises:
(e) composite grain after coldmoulding is dried or air-set.
7. the method for preparing nano material master alloy alterant as claimed in claim 5, is characterized in that, the nano material master alloy alterant of composite grain coldmoulding is the slice shape of cylinder shape or the Φ 3mm X10mm of Φ 10mm.
8. an alloy preparation method, is characterized in that, described method comprises the following steps:
(a) nano material master alloy alterant claimed in claim 1 is removed the gred and pre-deoxidation is processed;
(b) by described nano material master alloy alterant according to joining in the smelting furnace that is about to come out of the stove at 0.02%～0.04% of molten steel, molten iron or non-ferrous alloy liquid weight, or come out of the stove after flowing out and join in pouring ladle with stream at molten steel, molten iron or at non-ferrous alloy liquid, or directly join in casting mold;
(c) by molten steel, molten iron or the moulding of non-ferrous alloy liquid Quick pouring carried out after alterant processing.
9. alloy preparation method as claimed in claim 8, is characterized in that, the nano material master alloy alterant adding in step (b) is without baking and preheating.
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| CN104862451A (en) * | 2015-05-29 | 2015-08-26 | 宁国市华丰耐磨材料有限公司 | Method for applying nano molten iron purifying modificator to austenitic ductile iron cast ball |
| CN104862450B (en) * | 2015-05-29 | 2017-03-08 | 宁国市华丰耐磨材料有限公司 | Nano-hot metal purifies the method that alterant is used for austenic globe body wear resistance castings |
| CN105506223A (en) * | 2015-12-16 | 2016-04-20 | 王永妍 | Molten steel purifying agent for improving toughness of steel and preparation method of molten steel purifying agent |
| CN105525059A (en) * | 2015-12-16 | 2016-04-27 | 王永妍 | Nano molten steel purifying agent and preparation method thereof |
| CN105821291A (en) * | 2016-03-28 | 2016-08-03 | 繁昌县天和机械有限公司 | Method for preparing nanometer modified high-hardness nodular cast iron |
| CN106011598B (en) * | 2016-08-05 | 2017-11-07 | 北京科技大学 | A kind of preparation method of molybdenum steel additive |
| CN106566940A (en) * | 2016-11-08 | 2017-04-19 | 潜山县凯创橡塑机械制造有限公司 | Alloy bushing alloy liquid purifying agent and preparation process thereof |
| CN106636865A (en) * | 2016-12-15 | 2017-05-10 | 钟小苹 | Composite modifier for gray cast iron of tungsten molybdenum cobalt-silicon iron alloy carrying nano zirconium-silicon oxide and preparation method of composite modifier |
| CN109182651A (en) * | 2018-08-27 | 2019-01-11 | 河北冀凯铸业有限公司 | A kind of multifunctional and composite type alterant suitable for cast steel |
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| US6846345B1 (en) * | 2001-12-10 | 2005-01-25 | The United States Of America As Represented By The Secretary Of The Navy | Synthesis of metal nanoparticle compositions from metallic and ethynyl compounds |
| CN1876877A (en) * | 2006-05-09 | 2006-12-13 | 沈阳工业大学 | Nano composite ceramic additive for thermostable steel and preparation process thereof |
| CN100519803C (en) * | 2006-08-31 | 2009-07-29 | 宝山钢铁股份有限公司 | Nano TiO2 oxide containing ferroalloy intermediate and preparation method and uses thereof |
| CN101875112B (en) * | 2009-04-29 | 2013-06-26 | 方克明 | Micron/nano metallurgical addition agent |
| CN101565782B (en) * | 2009-05-31 | 2011-01-05 | 南昌大学 | Method for adding carbon nano tube into metal bath |
| RU2443794C2 (en) * | 2010-02-08 | 2012-02-27 | Руслан Гизарович Миннеханов | Modifying agent for steel and alloys |
| CN101967534A (en) * | 2010-09-12 | 2011-02-09 | 江西理工大学 | Method for toughening iron and steel materials by adding nano-particles |
| CN102031443A (en) * | 2010-11-12 | 2011-04-27 | 合肥开尔纳米能源科技股份有限公司 | Method for improving performance of alloy steel by using nano ceramic powder and special equipment thereof |
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2012
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