CN106755705A - A kind of nodular cast iron composite modifier of chromium tantalum cobalt Antaciron loading with nano cerium oxide boron carbide and preparation method thereof - Google Patents
A kind of nodular cast iron composite modifier of chromium tantalum cobalt Antaciron loading with nano cerium oxide boron carbide and preparation method thereof Download PDFInfo
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- CN106755705A CN106755705A CN201611150504.7A CN201611150504A CN106755705A CN 106755705 A CN106755705 A CN 106755705A CN 201611150504 A CN201611150504 A CN 201611150504A CN 106755705 A CN106755705 A CN 106755705A
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- powder
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- cerium oxide
- boron carbide
- cast iron
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C1/00—Refining of pig-iron; Cast iron
- C21C1/10—Making spheroidal graphite cast-iron
- C21C1/105—Nodularising additive agents
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/08—Making cast-iron alloys
Abstract
The present invention relates to a kind of nodular cast iron alterant, and in particular to a kind of nodular cast iron composite modifier of chromium tantalum cobalt Antaciron loading with nano cerium oxide boron carbide and preparation method thereof, the alterant is made up of the raw material of following weight portion：Nano boron carbide 12, lead-free glass powder 1 1.5, chromium carbide 23, nano-cerium oxide 0.1 0.2, ferro tantalum miberal powder 12, cobalt powder 23, the ferrosilicon powder 45 that expanded graphite powder 23, silicone content is 45%, the ethanol water 20 25, auxiliary agent 0.4 0.5 that aluminium-magnesium silicate 0.3 0.4, concentration is 5 10%；Nano boron carbide, nano cerium oxide powder and the ferro-silicon alloy powder that the present invention loads expanded graphite powder mutually bond load, a kind of composite modifier of stable performance is obtained, it can increase nucleus quantity, thinning microstructure structure, the performance of nodular cast iron is improved, corrosion resistance is stronger；The alterant efficiently obtains more preferable modification effect, and reduces production cost using more convenient than traditional alterant.
Description
Technical field
The present invention relates to a kind of nodular cast iron alterant, and in particular to a kind of chromium tantalum cobalt-Antaciron load nano oxygen
Change nodular cast iron composite modifier of cerium-boron carbide and preparation method thereof.
Background technology
Nodular cast iron refers to the alterant by adding with nodularization and breeding effect, the casting with globular graphite for obtaining
Iron, the intensity of this kind of cast iron is greatly improved, with excellent combination property, it has also become be only second to a class quilt of gray cast iron
Wide variety of cast iron.
The alterant used in nodular cast iron production process is directly connected to the performance of product, change the most frequently used at present
Matter agent is rare earth magnesium, ferrosilicon series alloy, and although these alterants achieve relatively good modification effect, but are still present
Some shortcomings, burn-off rate is fast when ferrosilicon series alterant is used, and nucleation rate is low, and Oxygen potential is poor, and raw material availability is low；And rare earth
Material is also restricted by production cost；Also rise by the use of nano material as alterant in recent years, can increase molten with substantial amounts of
Internal nucleus quantity, while crystal grain thinning, improves the consistency of tissue, yet with the design feature of nano material, it is molten
Bad dispersibility in body, easily floating improves production cost, it is necessary to aid in special injection apparatus.
The content of the invention
It is an object of the present invention to prepare a kind of new alterant by nano material and alloying element mixed load, subtract
The usage amount of few expensive alloying elements, while simple lossless improvement nano material is dispersed in the melt, improves each raw material
Utilization rate, reaches the nodularization effect for improving nodular cast iron, improves the purpose of performance, to achieve these goals, the present invention
Nodular cast iron composite modifier and its preparation side of a kind of chromium tantalum cobalt-Antaciron loading with nano cerium oxide-boron carbide are provided
Method, the technical scheme of use is as follows：
A kind of nodular cast iron composite modifier of chromium tantalum cobalt-Antaciron loading with nano cerium oxide-boron carbide and its preparation side
Method, it is characterised in that the alterant is made up of the raw material of following weight portion：Nano boron carbide 1-2, lead-free glass powder 1-1.5, carbon
Change chromium 2-3, nano-cerium oxide 0.1-0.2, ferro tantalum miberal powder 1-2, cobalt powder 2-3, expanded graphite powder 2-3, the ferrosilicon that silicone content is 45%
Powder 4-5, aluminium-magnesium silicate 0.3-0.4, concentration are ethanol water 20-25, the auxiliary agent 0.4-0.5 of 5-10%.
Described auxiliary agent is made up of the raw material of following weight portion：Potassium feldspar 2-3, lithium slag 1-3, Yttrium base rare earth inovulant 2-
3rd, boron phosphate 0.5-0.8, carbon nano-fiber 2-3, sodium lignin sulfonate 1-2, organobentonite 2-3, water 15-20, preparation method
For：During sodium lignin sulfonate, organobentonite first thrown into water, 40-50min is thoroughly mixed, it is standby to be made activating solution, then
Potassium feldspar, lithium slag are crushed, 80-120 mesh sieves are crossed, 1-2h is ground in screenings input activating solution, obtain activation potassium feldspar-lithium ore deposit
, be added to other residual components in activation homogenate again finally by slag homogenate, stirring mixing 2-3h, obtains final product dopen Nano carbon fiber
Composite strengthening breeds auxiliary agent.
A kind of nodular cast iron composite modifier of described chromium tantalum cobalt-Antaciron loading with nano cerium oxide-boron carbide
Preparation method be：
（1）After first chromium carbide, ferro tantalum miberal powder, cobalt powder are well mixed with ferrosilicon powder in input electric furnace, moulding by casting after melting, with
Afterwards by gained alloy breaks down, 300-400 mesh sieves are crossed, obtain alloyed powder standby；
（2）Nano boron carbide, nano-cerium oxide are mixed with expanded graphite powder, in the ethanol water of input 10-15 weight portions,
Slurry is carried out into closed ball milling treatment after being uniformly mixed, after ball milling 1-2h, gained slurry high-speed stirred mixing 10-13h is obtained
Expanded graphite supporting nano-cerium oxide-boron carbide composite mortar is standby；
（3）By step（1）The alloy powder of gained, step（2）Gained slurry mixes with other residual components, in closed environment
Secondary agitation is carried out, by heated-air drying after mixed slurry high-speed stirred mixing 15-18h, moisture content is removed completely, be broken into fine powder
Shape, obtains final product.
Compared with prior art, composite modifier of the present invention will be born with the expanded graphite powder of high heat stability, high-specific surface area
The nano boron carbide of load, nano cerium oxide powder and chromium tantalum cobalt-ferro-silicon alloy powder mutually bond load, and a kind of stable performance is obtained
Alterant, nano material fusing point therein is high to be difficult ablated, and dispersivity is good, and being dispersed in significant in liquation increases nucleus number
Amount, thinning microstructure structure, and the compound ferro-silicon alloy powder for adulterating is difficult ablation, nucleation rate is improved, and improves making for nodular cast iron
With performance, corrosion resistance is stronger；The alterant efficiently obtains more preferable modification effect, and is used than traditional alterant
It is more convenient, reduce production cost.
Specific embodiment
Embodiment
The present embodiment alterant is made up of following raw material：Nano boron carbide 1.5, lead-free glass powder 1.2, chromium carbide
3rd, nano-cerium oxide 0.1, ferro tantalum miberal powder 2, cobalt powder 2, the ferrosilicon powder 5, aluminium-magnesium silicate 0.3 that expanded graphite powder 3, silicone content is 45%,
Concentration is 5% ethanol water 22, auxiliary agent 0.4.
Described auxiliary agent is made up of the raw material of following weight portion：Potassium feldspar 2, lithium slag 2, Yttrium base rare earth inovulant 2.5, phosphorus
Sour boron 0.6, carbon nano-fiber 3, sodium lignin sulfonate 1.8, organobentonite 3, water 18, preparation method is：First by sulfomethylated lignin
Sour sodium, organobentonite are thrown in water, are thoroughly mixed 45min, and it is standby to be made activating solution, then by potassium feldspar, lithium slag powders
It is broken, 100 mesh sieves are crossed, 1.5h is ground in screenings input activating solution, activation potassium feldspar-lithium slag homogenate is obtained, finally again by other
Residual components are added in activation homogenate, and stirring mixing 2.5h, the composite strengthening for obtaining final product dopen Nano carbon fiber breeds auxiliary agent.
A kind of nodular cast iron composite modifier of described chromium tantalum cobalt-Antaciron loading with nano cerium oxide-boron carbide
Preparation method be：
（1）After first chromium carbide, ferro tantalum miberal powder, cobalt powder are well mixed with ferrosilicon powder in input electric furnace, moulding by casting after melting, with
Afterwards by gained alloy breaks down, 400 mesh sieves are crossed, obtain alloyed powder standby；
（2）Nano boron carbide, nano-cerium oxide are mixed with expanded graphite powder, is put into the ethanol water of 12 weight portions, stirred
Mix and slurry is carried out into closed ball milling treatment after being well mixed, after ball milling 2h, gained slurry high-speed stirred mixing 12h obtains expansion stone
Black loading with nano cerium oxide-boron carbide composite mortar is standby；
（3）By step（1）The alloy powder of gained, step（2）Gained slurry mixes with other residual components, in closed environment
Secondary agitation is carried out, by heated-air drying after mixed slurry high-speed stirred mixing 18h, moisture content is removed completely, be broken into fine-powdered, i.e.,
.
By taking QT400 as an example, application method is the present embodiment：Added respectively using ladle bottom pouring process in QT400 manufacturing processes
Enter the alterant of 0.40wt%, 0.60wt%, 0.80wt%, the casting liquid after Metamorphism treatment is poured and outpours sample, and specimen size is Φ
30mm × 300mm, and be respectively labeled as 1,2,3, the respective mechanical experimental results of the sample of the rotten agent contents of these three differences
It is as follows：
| Numbering | 1 | 2 | 3 |
| Tensile strength | 426MPa | 448MPa | 495MPa |
Claims (2)
1. a kind of nodular cast iron composite modifier of chromium tantalum cobalt-Antaciron loading with nano cerium oxide-boron carbide and its preparation
Method, it is characterised in that the alterant is made up of the raw material of following weight portion：Nano boron carbide 1-2, lead-free glass powder 1-1.5,
Chromium carbide 2-3, nano-cerium oxide 0.1-0.2, ferro tantalum miberal powder 1-2, cobalt powder 2-3, expanded graphite powder 2-3, the silicon that silicone content is 45%
Iron powder 4-5, aluminium-magnesium silicate 0.3-0.4, concentration are ethanol water 20-25, the auxiliary agent 0.4-0.5 of 5-10%；
Described auxiliary agent is made up of the raw material of following weight portion：Potassium feldspar 2-3, lithium slag 1-3, Yttrium base rare earth inovulant 2-3, phosphorus
Sour boron 0.5-0.8, carbon nano-fiber 2-3, sodium lignin sulfonate 1-2, organobentonite 2-3, water 15-20, preparation method is：First
During sodium lignin sulfonate, organobentonite thrown into water, 40-50min is thoroughly mixed, it is standby to be made activating solution, then by potassium
Feldspar, lithium slag are crushed, and cross 80-120 mesh sieves, and 1-2h is ground in screenings input activating solution, obtain activation potassium feldspar-lithium slag equal
, be added to other residual components in activation homogenate again finally by slurry, stirring mixing 2-3h, obtains final product the compound of dopen Nano carbon fiber
Auxiliary agent is bred in enhancing.
2. a kind of nodular cast iron of chromium tantalum cobalt-Antaciron loading with nano cerium oxide-boron carbide as claimed in claim 1 is with again
Alterant and preparation method thereof is closed, its preparation method is：
（1）After first chromium carbide, ferro tantalum miberal powder, cobalt powder are well mixed with ferrosilicon powder in input electric furnace, moulding by casting after melting, with
Afterwards by gained alloy breaks down, 300-400 mesh sieves are crossed, obtain alloyed powder standby；
（2）Nano boron carbide, nano-cerium oxide are mixed with expanded graphite powder, in the ethanol water of input 10-15 weight portions,
Slurry is carried out into closed ball milling treatment after being uniformly mixed, after ball milling 1-2h, gained slurry high-speed stirred mixing 10-13h is obtained
Expanded graphite supporting nano-cerium oxide-boron carbide composite mortar is standby；
（3）By step（1）The alloy powder of gained, step（2）Gained slurry mixes with other residual components, in closed environment
Secondary agitation is carried out, by heated-air drying after mixed slurry high-speed stirred mixing 15-18h, moisture content is removed completely, be broken into fine powder
Shape, obtains final product.
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| CN201611150504.7A CN106755705A (en) | 2016-12-14 | 2016-12-14 | A kind of nodular cast iron composite modifier of chromium tantalum cobalt Antaciron loading with nano cerium oxide boron carbide and preparation method thereof |
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| CN201611150504.7A CN106755705A (en) | 2016-12-14 | 2016-12-14 | A kind of nodular cast iron composite modifier of chromium tantalum cobalt Antaciron loading with nano cerium oxide boron carbide and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110193592A (en) * | 2019-06-24 | 2019-09-03 | 界首万昌新材料技术有限公司 | A method of improving differential carrier corrosion resistance |
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| CN1077229A (en) * | 1992-04-06 | 1993-10-13 | 德州机床厂 | Cast-iron compound inoculant |
| CN103757516A (en) * | 2014-01-09 | 2014-04-30 | 北京工业大学 | Wear-resisting white cast iron and preparation method thereof |
| CN105349885A (en) * | 2015-10-15 | 2016-02-24 | 芜湖市宝艺游乐科技设备有限公司 | Pre-hardened plastic die steel high in thermal conductivity and easy to cut and polish and preparation method of pre-hardened plastic die steel |
| CN105349893A (en) * | 2015-10-15 | 2016-02-24 | 芜湖市宝艺游乐科技设备有限公司 | Pre-hardened plastic die steel with oxidation corrosion resistance and high thermal stability and preparation method of pre-hardened plastic die steel |
| CN106048135A (en) * | 2016-07-12 | 2016-10-26 | 江苏捷帝机器人股份有限公司 | Composition for improving flowability of liquid metal |
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2016
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Patent Citations (5)
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| CN1077229A (en) * | 1992-04-06 | 1993-10-13 | 德州机床厂 | Cast-iron compound inoculant |
| CN103757516A (en) * | 2014-01-09 | 2014-04-30 | 北京工业大学 | Wear-resisting white cast iron and preparation method thereof |
| CN105349885A (en) * | 2015-10-15 | 2016-02-24 | 芜湖市宝艺游乐科技设备有限公司 | Pre-hardened plastic die steel high in thermal conductivity and easy to cut and polish and preparation method of pre-hardened plastic die steel |
| CN105349893A (en) * | 2015-10-15 | 2016-02-24 | 芜湖市宝艺游乐科技设备有限公司 | Pre-hardened plastic die steel with oxidation corrosion resistance and high thermal stability and preparation method of pre-hardened plastic die steel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110193592A (en) * | 2019-06-24 | 2019-09-03 | 界首万昌新材料技术有限公司 | A method of improving differential carrier corrosion resistance |
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