CN106755702A - A kind of titanium aluminum carbide intermediate alloy as gray cast iron inovulant application - Google Patents
A kind of titanium aluminum carbide intermediate alloy as gray cast iron inovulant application Download PDFInfo
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- CN106755702A CN106755702A CN201710067674.7A CN201710067674A CN106755702A CN 106755702 A CN106755702 A CN 106755702A CN 201710067674 A CN201710067674 A CN 201710067674A CN 106755702 A CN106755702 A CN 106755702A
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- cast iron
- gray cast
- titanium carbide
- inovulant
- intermediate alloy
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- 229910001060 Gray iron Inorganic materials 0.000 title claims abstract description 62
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 23
- 239000000956 alloy Substances 0.000 title claims abstract description 23
- UQZIWOQVLUASCR-UHFFFAOYSA-N alumane;titanium Chemical compound [AlH3].[Ti] UQZIWOQVLUASCR-UHFFFAOYSA-N 0.000 title abstract description 5
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 claims abstract description 36
- 239000008187 granular material Substances 0.000 claims abstract description 20
- 229910052719 titanium Inorganic materials 0.000 claims description 33
- 239000010936 titanium Substances 0.000 claims description 33
- 239000004411 aluminium Substances 0.000 claims description 32
- 229910052782 aluminium Inorganic materials 0.000 claims description 32
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 27
- 239000000155 melt Substances 0.000 claims description 4
- 229910001566 austenite Inorganic materials 0.000 abstract description 28
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 27
- 238000000034 method Methods 0.000 abstract description 14
- 229910002804 graphite Inorganic materials 0.000 abstract description 13
- 239000010439 graphite Substances 0.000 abstract description 13
- 238000005452 bending Methods 0.000 abstract description 6
- 230000005496 eutectics Effects 0.000 abstract description 6
- 229910001018 Cast iron Inorganic materials 0.000 abstract description 2
- 238000007711 solidification Methods 0.000 abstract description 2
- 230000008023 solidification Effects 0.000 abstract description 2
- 239000002245 particle Substances 0.000 description 20
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 18
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 15
- 229910052799 carbon Inorganic materials 0.000 description 10
- 238000002474 experimental method Methods 0.000 description 10
- 230000008018 melting Effects 0.000 description 10
- 238000002844 melting Methods 0.000 description 10
- 238000005266 casting Methods 0.000 description 9
- 229910052742 iron Inorganic materials 0.000 description 9
- 210000001787 dendrite Anatomy 0.000 description 8
- 238000011081 inoculation Methods 0.000 description 8
- 239000000843 powder Substances 0.000 description 7
- 239000011347 resin Substances 0.000 description 7
- 229920005989 resin Polymers 0.000 description 7
- 238000010079 rubber tapping Methods 0.000 description 7
- 239000004576 sand Substances 0.000 description 7
- 238000004458 analytical method Methods 0.000 description 6
- 239000013078 crystal Substances 0.000 description 6
- 239000004744 fabric Substances 0.000 description 6
- 239000002041 carbon nanotube Substances 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 238000005087 graphitization Methods 0.000 description 4
- 238000003763 carbonization Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 241000209094 Oryza Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 229910004072 SiFe Inorganic materials 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 235000013339 cereals Nutrition 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- -1 aluminium-titanium-carbon Chemical compound 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 238000000498 ball milling Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- IXSZQYVWNJNRAL-UHFFFAOYSA-N etoxazole Chemical compound CCOC1=CC(C(C)(C)C)=CC=C1C1N=C(C=2C(=CC=CC=2F)F)OC1 IXSZQYVWNJNRAL-UHFFFAOYSA-N 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910001562 pearlite Inorganic materials 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000010189 synthetic method Methods 0.000 description 1
Classifications
-
- 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
- C21C1/08—Manufacture of cast-iron
Abstract
The present invention relates to a kind of titanium aluminum carbide intermediate alloy as gray cast iron inovulant application, in the inovulant, titanium carbide granule size is 80~600nm, and the volume content of titanium carbide granule is 20vol.% 40vol.%；Inovulant is incorporated in gray cast iron melt according to titanium carbide granule mass fraction 0.25wt.%~0.50wt.%.The application process innoculant adding quantity is few, low cost, process is simple, the growth morphology of primary austenite during cast iron solidification can be changed, form the complicated network of space structure, limit the growing space of eutectic graphite, so as to obtain the graphite structure of tiny bending, the tensile strength of gray cast iron can be increased substantially.
Description
Technical field
The invention belongs to Production Technique of Gray Cast Iron field, it is related to a kind of titanium carbide-aluminium intermediate alloy to be bred as gray cast iron
The application of agent.
Background technology
In castings production total amount at home and abroad, gray cast iron occupies very big ratio as a kind of traditional metal material
Weight, this casting formability mainly good with it, cheap price, excellent corrosion-resistant, wear-resistant, high rigidity, casting quality
The characteristic such as easy to control is relevant.As Hyundai Motor industry is to lightweight, powerful development, to the thin-wall high-strength of gray cast iron material
Degree performance requirement is also more and more higher.Therefore, needing the new and effective inovulant of exploitation badly makes the mechanical property of gray cast iron obtain greatly
Amplitude is improved.
In the method for conventional raising Mechanical Properties of Grey Cast Iron, inoculation can by the mechanical performance of ironcasting improve to
Few 1-2 trade mark.Conventional inovulant is broadly divided into two classes：Graphitization inovulant and stabilisation inovulant.Graphitization inovulant
Graphitization can be promoted, spoken parts in traditional operas is reduced, mainly including carbon containing serial, siliceous common serial and special silicon systems row.But carbon containing system
The melting temperature of row inovulant it is general it is higher (>1450 DEG C), certain inovulant feed postition need to be selected；Special silicon systems row breed
Though the speed of agent decline is very slow, pregnant effect is not clearly；Stabilizing inovulant can not only promote graphitization, also
Being capable of stabilizing pearlite tissue, such as inovulant containing Cr, N element.But conventional inovulant can't reach greatly at this stage
Amplitude improves the purpose of Mechanical Properties of Grey Cast Iron.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of titanium carbide-aluminium intermediate alloy answering as gray cast iron inovulant
With the application process innoculant adding quantity is few, low cost, process is simple, can change nascent Ovshinsky during cast iron solidification
The growth morphology of body, forms the complicated network of space structure, limits the growing space of eutectic graphite, so as to obtain tiny, bending
Graphite structure, the tensile strength of gray cast iron can be increased substantially.
In the inovulant, titanium carbide granule size is 80~600nm, and the volume content of titanium carbide granule is
20vol.%-40vol.%；Inovulant is incorporated in gray cast iron according to titanium carbide granule mass fraction 0.25wt.%~0.5wt.%
In melt.
Titanium carbide granule is preferably dimensioned to be 80nm, and inovulant is according to titanium carbide granule mass fraction for 0.5wt.% is incorporated in
In gray cast iron melt.
The inovulant is prepared by aluminium-titanium-carbon system thermal explosion synthetic method, and micron-scale, sub-micro are contained in inovulant
The titanium carbide granule of meter ruler cun and nano-scale.
Described gray cast iron, alloying component is by mass percentage：3.2~3.5C, 1.5~1.8Si, 0.8~1.0Mn,
≤ 0.15P ,≤0.12S, using intermediate frequency furnace melting, infrared thermometer thermometric, 1530 DEG C of molten iron tapping temperature, in casting ladle
Breed, poured into a mould in resin bonded sand mould after being sufficiently stirred for.
According to theoretical calculation, TiC and austenite lattice equations<15%, with as primary austenite heterogeneous nuclei
Primary condition, so as to increase the quantity of primary austenite and obtain the spatial network frame structure of complexity, and then influences gray cast iron
The form of graphite, size, quantity and distribution in tissue, so as to improve the mechanical property of gray cast iron.
It is demonstrated experimentally that titanium carbide-aluminium intermediate alloy as gray cast iron inovulant is changed the micro- of gray cast iron by the present invention
Tissue, significantly improves the mechanical property of gray cast iron.
Brief description of the drawings
The present invention is described in further detail with reference to the accompanying drawings and detailed description.
Fig. 1 is the micron-scale TiC granule-morphologies of embodiment 1.
Fig. 2 is the submicron-scale TiC granule-morphologies of embodiment 2.
Fig. 3 is the nano-scale TiC granule-morphologies of embodiment 3.
Fig. 4 is the experiment gray cast iron A primary austenite tissues of comparative example 1.
Fig. 5 is the experiment gray cast iron B primary austenite tissues of embodiment 1.
Fig. 6 is the experiment gray cast iron C primary austenite tissues of embodiment 2.
Fig. 7 is the experiment gray cast iron D primary austenite tissues of embodiment 3.
Fig. 8 is the experiment gray cast iron a graphite structures of comparative example 2.
Fig. 9 is the experiment gray cast iron b graphite structures of embodiment 4.
Figure 10 is the experiment gray cast iron c graphite structures of embodiment 5.
Figure 11 is the experiment gray cast iron d graphite structures of embodiment 6.
Specific embodiment
The inovulant is prepared using following methods：By the mixing of aluminium powder, titanium valve and carbon dust, ball milling, synthesize anti-by thermal explosion
Titanium carbide-the aluminium intermediate alloy containing TiC particles should be prepared (referring to " a kind of in-situ nano TiC ceramic particle reinforced aluminium bases are answered
Condensation material and preparation method thereof ", application number：201110209567.6, publication date：2011.11.30；“Morphology
evolution of TiCx grains during SHS in an Al-Ti-C system”,Crystal Growth&
Design, 9 (2009) 646-649), then it is broken into the particle of 5-10 mm sizes.
The inovulant is added in gray cast iron melt using the method for inoculation in casting ladle.
Embodiment 1
It is 1 according to C and Ti atomic ratios using titanium valve, aluminium powder and about 0.1 μm of carbon black：1, aluminium volume content is
The ratio of 40vol.% prepares the titanium carbide-aluminium intermediate alloy containing micron-scale titanium carbide granule；Micron-scale titanium carbide
Granule-morphology is as shown in Figure 1.Using intermediate frequency furnace melting gray cast iron, infrared thermometer thermometric, molten iron tapping temperature 1530
DEG C, the titanium carbide-aluminium intermediate alloy containing micron-scale titanium carbide granule is broken for the particle of 5-10 mm sizes, using pouring
The method of inoculation is added in gray cast iron melt in bag, is poured into a mould in resin bonded sand mould after being sufficiently stirred for, and obtains tensile strength
Determine and fabric analysis sample B.
Embodiment 2
It is 1 according to C and Ti atomic ratios using titanium valve, aluminium powder and CNTs (20-30nm)：1, aluminium volume content is
The ratio of 60vol.% prepares the titanium carbide-aluminium intermediate alloy containing submicron-scale titanium carbide granule；Submicron-scale carbon
Change titanium granule-morphology as shown in Figure 2.Using intermediate frequency furnace melting gray cast iron, infrared thermometer thermometric, molten iron tapping temperature
1530 DEG C, the titanium carbide-aluminium intermediate alloy containing submicron-scale titanium carbide granule is broken for the particle of 5-10 mm sizes,
It is added in gray cast iron melt using the method for inoculation in casting ladle, is poured into a mould in resin bonded sand mould after being sufficiently stirred for, is resisted
Tensile strength is determined and fabric analysis sample C.
Embodiment 3
It is 1 according to C and Ti atomic ratios using titanium valve, aluminium powder and CNTs (20-30nm)：1, aluminium volume content is
The ratio of 80vol.% prepares the titanium carbide-aluminium intermediate alloy containing nanosize titanium carbide particle；Nanosize titanium carbide
Granule-morphology is as shown in Figure 3.Using intermediate frequency furnace melting gray cast iron, infrared thermometer thermometric, molten iron tapping temperature 1530
DEG C, the titanium carbide-aluminium intermediate alloy containing nanosize titanium carbide particle is broken for the particle of 5-10 mm sizes, using pouring
The method of inoculation is added in gray cast iron melt in bag, is poured into a mould in resin bonded sand mould after being sufficiently stirred for, and obtains tensile strength
Determine and fabric analysis sample D.
The mass fraction of titanium carbide granule size and titanium carbide in gray cast iron melt is as shown in table 1 in sample B, C, D.
Table 1
Note：Sample A is comparative example sample in table, except the SiFe inovulants that all samples in melting are all added, is not added
Enter other any inovulants.
Fig. 4-Fig. 7 is comparative example A and embodiment 1-3 experiment gray cast iron by the tissue after austenitizing annealing.Its
In in black bar be graphite, brilliant white is primary austenite tissue, and grey black is pearlitic structrure.
It can be seen that without the sample such as Fig. 4 for adding inovulant of the present invention, primary austenite dentrite quantity is less, primary tiller
Brilliant crystallographic axis is thick, and brilliant arm spacing is larger, and distribution does not have Special composition network structure more simply.With inovulant TiC particle chis
Very little reduction, the quantity of primary austenite is on the increase, the refinement of crystallographic axis, interdendritic away from reducing, it is crisscross, formation finishes
The complicated spacial framework of structure, as shown in Fig. 5,6,7.
Theoretical according to heterogeneous forming core, the fusing point of TiC is 3410 DEG C, higher than the fusing point of liquid metal, while according to calculating TiC
(100) crystal face and the two-dimentional mismatch of γ-Fe (110) crystal face are 12.7%, TiC (100) crystal faces and γ-Fe (111) crystal face
Two-dimentional mismatch is 10.0%, it is seen then that TiC is less than 15% with γ-Fe lattice equations, with as the heterogeneous of primary austenite
The primary condition of core.Therefore the addition of TiC causes that the crystallization nuclei of primary austenite increases, the space structure of primary austenite
Become more complicated, the gap in network structure becomes narrow, so as to reduce the space of Graphite Precipitation in eutectic reaction, to obtain
Obtain tiny, bending graphite and establish condition.Eutectic graphite as eutectic reaction it is leading run into growth course it is nascent
Necessarily change its direction of growth during austenite dendrites, graphite form becomes bended.Because the intensity of flake graphite is almost nil, phase
When the micro-crack in matrix, the size of flake graphite is bigger, shape is more straight, then the effect of isolating to matrix is got over
Substantially, causing the mechanical property of gray cast iron reduces, and bend, tiny graphite can reduce this effect of isolating so that mechanics
Performance is improved.Table 2 is the tensile strength measurement result of experiment gray cast iron, it is seen then that titanium carbide-aluminium intermediate alloy inovulant
Addition improves the tensile strength of gray cast iron, and with the reduction of titanium carbide granule size in inovulant, the tension of gray cast iron
Intensity improves more obvious.
Table 2
| Specimen coding | A | B | C | D |
| Tensile strength (MPa) | 236 | 247 | 259 | 355 |
Embodiment 4
It is 1 according to C and Ti atomic ratios using titanium valve, aluminium powder and CNTs (20-30nm)：1, aluminium volume content is
The ratio of 80vol.% prepares the titanium carbide-aluminium intermediate alloy containing nanosize titanium carbide particle.Using intermediate frequency furnace
Melting gray cast iron, infrared thermometer thermometric, 1530 DEG C of molten iron tapping temperature, by the carbonization containing nanosize titanium carbide particle
Titanium-aluminium intermediate alloy is broken for the particle of 5-10 mm sizes, and being added to gray cast iron using the method for inoculation in casting ladle melts
In body, poured into a mould in resin bonded sand mould after being sufficiently stirred for, obtain tensile strength and determine and fabric analysis sample b.Titanium carbide is cast in ash
Mass fraction in fusant is 0.25wt.%.
Embodiment 5
It is 1 according to C and Ti atomic ratios using titanium valve, aluminium powder and CNTs (20-30nm)：1, aluminium volume content is
The ratio of 80vol.% prepares the titanium carbide-aluminium intermediate alloy containing nanosize titanium carbide particle.Using intermediate frequency furnace
Melting gray cast iron, infrared thermometer thermometric, 1530 DEG C of molten iron tapping temperature, by the carbonization containing nanosize titanium carbide particle
Titanium-aluminium intermediate alloy is broken for the particle of 5-10 mm sizes, and being added to gray cast iron using the method for inoculation in casting ladle melts
In body, poured into a mould in resin bonded sand mould after being sufficiently stirred for, obtain the ratio of tensile strength measure and fabric analysis sample c.Titanium carbide
Mass fraction in gray cast iron melt is 0.5wt.%.
Embodiment 6
It is 1 according to C and Ti atomic ratios using titanium valve, aluminium powder and CNTs (20-30nm)：1, aluminium volume content is
The ratio of 80vol.% prepares the titanium carbide-aluminium intermediate alloy containing nanosize titanium carbide particle.Using intermediate frequency furnace
Melting gray cast iron, infrared thermometer thermometric, 1530 DEG C of molten iron tapping temperature, by the carbonization containing nanosize titanium carbide particle
Titanium-aluminium intermediate alloy is broken for the particle of 5-10 mm sizes, and being added to gray cast iron using the method for inoculation in casting ladle melts
In body, poured into a mould in resin bonded sand mould after being sufficiently stirred for, obtain tensile strength and determine and fabric analysis sample b.Titanium carbide is cast in ash
Mass fraction in fusant is 0.75wt.%.
Mass fraction of the titanium carbide in gray cast iron melt is as shown in table 3 in sample b, c, d.
Table 3
| Specimen coding | a | b | c | d |
| Innoculant adding quantity | —— | 0.25wt.%TiC | 0.5wt.%TiC | 0.75wt.%TiC |
Note：Sample a is comparative example sample in table, except the SiFe inovulants that all samples in melting are all added, is not added
Enter other any inovulants.
Fig. 8-Figure 11 is the graphite structure for testing gray cast iron, it can be seen that：With the increase of innoculant adding quantity of the present invention,
Testing the graphite structure of gray cast iron becomes tiny, bending, but when the addition of inovulant reaches 0.75wt.%, is removed in sample
There is the A type graphite of tiny bending, while occur in that D, E type graphite of point-like.
Different content nano titanium carbide particle (TiCp) is added in gray cast iron material, primary austenite dendrite can be changed
Quantity and form, make primary austenite dendrite skeleton become to become increasingly complex, and form intensive equiaxial network structure.And with receiving
The addition of rice TiCp, primary austenite increasing number in iron liquid, while it is mutual with dendritic arm end to there is also austenite limb
Staggeredly, overlap, dendrite is presented interlaced frame-like structure.Because eutectic reaction is carried out between austenite dendrites, Ovshinsky
Body space structure is more complicated, interdendritic away from smaller, be more readily available the graphite structure of tiny bending.But when the nanometer for adding
TiCp contents continue to increase, and nano TiC p takes place reunion, reduces influences of the TiCp to austenite structure.Receiving after reunion
Rice grain uneven is distributed in iron liquid similar to the micron particles of large-size.Now, part TiCp can be as first
The heterogeneous forming core core of raw austenite, but quantity reduction；On the other hand, part TiCp is distributed in the life of the para-crystal of primary austenite dendrite one
It is difficult that forward position long grows austenite dendrites, and the overlap joint between austenite dendrites is hampered to a certain extent, space can not be formed
Baroque network structure, so as to have impact on the form and size of graphite in gray cast iron.
Table 4 is the mechanics performance determining result that gray cast iron is processed using inovulant of the present invention, it is seen then that in the middle of titanium carbide-aluminium
Alloy innoculant adding quantity increase, the tensile strength of gray cast iron is significantly improved, but excess addition, tension is made on the contrary
Intensity decreases.
Table 4
| Specimen coding | a | b | c | d |
| Tensile strength (MPa) | 236 | 308 | 355 | 272 |
Claims (3)
1. a kind of titanium carbide-aluminium intermediate alloy as gray cast iron inovulant application.
2. titanium carbide-aluminium intermediate alloy according to claim 1 as gray cast iron inovulant application, it is characterised in that institute
State in inovulant, titanium carbide granule size is 80~600nm, and the volume content of titanium carbide granule is 20vol.%-40vol.%；
Inovulant is incorporated in gray cast iron melt according to titanium carbide granule mass fraction 0.25wt.%~0.5wt.%.
3. titanium carbide-aluminium intermediate alloy according to claim 1 as gray cast iron inovulant application, it is characterised in that institute
Titanium carbide granule size is stated for 80nm, inovulant melts according to titanium carbide granule mass fraction for 0.50wt.% is incorporated in gray cast iron
In body.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107267704A (en) * | 2017-07-03 | 2017-10-20 | 哈尔滨科德威冶金股份有限公司 | Spheroidal graphite cast-iron and vermicular cast iron inovulant and preparation method containing nanometer silicon carbide |
| CN109825293A (en) * | 2019-01-30 | 2019-05-31 | 吉林大学 | Application of the titanium carbide nanometer sheet as up-conversion |
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| JPS60141817A (en) * | 1983-12-28 | 1985-07-26 | Hitachi Metals Ltd | Production of magnetic head core material |
| CN1257935A (en) * | 1999-12-09 | 2000-06-28 | 朝阳特种材料推广中心 | Metallic strengthening agent |
| CN1352312A (en) * | 2001-11-07 | 2002-06-05 | 华中科技大学 | Al-Ti-C crystal grain fining agent and its producing process |
| CN1418973A (en) * | 2002-12-18 | 2003-05-21 | 涿州市精英铝合金材料有限责任公司 | Refining agent for crystalline grain of aluminium titanium carbon intermediate alloy |
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2017
- 2017-02-07 CN CN201710067674.7A patent/CN106755702B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60141817A (en) * | 1983-12-28 | 1985-07-26 | Hitachi Metals Ltd | Production of magnetic head core material |
| CN1257935A (en) * | 1999-12-09 | 2000-06-28 | 朝阳特种材料推广中心 | Metallic strengthening agent |
| CN1352312A (en) * | 2001-11-07 | 2002-06-05 | 华中科技大学 | Al-Ti-C crystal grain fining agent and its producing process |
| CN1418973A (en) * | 2002-12-18 | 2003-05-21 | 涿州市精英铝合金材料有限责任公司 | Refining agent for crystalline grain of aluminium titanium carbon intermediate alloy |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107267704A (en) * | 2017-07-03 | 2017-10-20 | 哈尔滨科德威冶金股份有限公司 | Spheroidal graphite cast-iron and vermicular cast iron inovulant and preparation method containing nanometer silicon carbide |
| CN107267704B (en) * | 2017-07-03 | 2023-03-24 | 哈尔滨科德威冶金股份有限公司 | Inoculant containing nano silicon carbide for nodular cast iron and vermicular cast iron and preparation method thereof |
| CN109825293A (en) * | 2019-01-30 | 2019-05-31 | 吉林大学 | Application of the titanium carbide nanometer sheet as up-conversion |
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| CN106755702B (en) | 2019-01-25 |
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