CN100537812C - A kind of antiwear cast iron alloy is material modified - Google Patents
A kind of antiwear cast iron alloy is material modified Download PDFInfo
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- CN100537812C CN100537812C CNB2007101447239A CN200710144723A CN100537812C CN 100537812 C CN100537812 C CN 100537812C CN B2007101447239 A CNB2007101447239 A CN B2007101447239A CN 200710144723 A CN200710144723 A CN 200710144723A CN 100537812 C CN100537812 C CN 100537812C
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Abstract
A kind of antiwear cast iron alloy is material modified, and it relates to a kind of ball material manufacturing technology that belongs to.It has solved the problem that ground finish efficient is low and work-ing life is short of existing nog plate.Antiwear cast iron alloy is material modified to be made by cast alloy iron and rare earth modified material, and rare earth modified material accounts for 0.01～5.00% of the material modified gross weight of antiwear cast iron alloy; Cast alloy iron is Cr-Mo-Cu cast alloy iron, W-Cr-Cu cast alloy iron, W-Cr-Cu-Mn cast alloy iron, Cr-Mo-Cu-Ni cast alloy iron or Mo-Ni cast alloy iron; The grain diameter of rare earth modified material is rare earth element and/or the rare earth compound of 1～500nm.The existing nog plate of the nog plate ground finish efficiency ratio of the material modified manufacturing of antiwear cast iron alloy of the present invention has improved more than 50%, and can reach existing more than a times of nog plate work-ing life, and applied range.The manufacturing approach craft of the inventive method is simple, be convenient to operation.
Description
Technical field
The invention belongs to the ball material manufacturing technology; It is material modified to be specifically related to a kind of nog plate that steel ball, tungsten alloy ball, Ceramic Balls, glass sphere, agate ball and other artwork ball equal sphere material are carried out the grinding attrition process.
Background technology
High-tech mechanical industry needs high precision, high-quality bearing and steel ball, China's steel ball industry is in recent years advanced by leaps and bounds becomes world steel ball big producing country, but be not power, major cause is that steel ball performance precision and the quality that China produces do not reach the level of world steel ball production power.Therefore, improve China's steel ball surface precision, produce high-quality steel ball, build up world steel ball power, pendulum is in face of the production nog plate producer.And the production of high precision, high quality steel ball be unable to do without the fine nog plate.
Nog plate by rotate nog plate and fixedly nog plate forms the many employing Cr-Mo-Cu of present abrasive sheet material, W-Cr-Cu both at home and abroad, W-Cr-Cu-Mn, Cr-Mo-Cu-Ni, Mo-Ni, graphitic cast iron and spheroidal graphite cast iron etc., wherein the tarry matter plate use maximum be the Cr-Mo-Cu alloy cast iron material.There is the problem that ground finish efficient is low and work-ing life is short in existing nog plate.
Publication number be disclose in CN85100113's " rare earth gray cast-iron products from blast furnace molten iron " patent with rare earth add blast-melted production wherein graphite be flaky grey cast iron product, add rare earth in this patent and improved the work-ing life and the tensile strength of cast prod, but to the wear resisting property that improves cast prod without any record.
Summary of the invention
The objective of the invention is in order to solve the inefficient problem of ground finish of existing nog plate, and provide a kind of antiwear cast iron alloy material modified.
Antiwear cast iron alloy of the present invention is material modified to be to be made by cast alloy iron and rare earth modified material, and rare earth modified material accounts for the material modified gross weight 0.01～5.00% of antiwear cast iron alloy; Described cast alloy iron is Cr-Mo-Cu cast alloy iron, W-Cr-Cu cast alloy iron, W-Cr-Cu-Mn cast alloy iron, Cr-Mo-Cu-Ni cast alloy iron, Mo-Ni cast alloy iron, graphitic cast iron, white cast iron or spheroidal graphite cast iron; Described rare earth modified material is that grain diameter is rare earth element and/or the rare earth compound of 1～500nm.Described rare earth compound is a kind of or wherein several mixing in rare-earth hydroxide, rare earth oxide, rare earth chloride, rare earth silicide, rare earth carbide and the rare earth nitride.Described rare-earth hydroxide is Ce (OH)
3, Nd (OH)
3, Eu (OH)
3, Gd (OH)
3, Tb (OH)
3, Dy (OH)
3, Ho (OH)
3, Er (OH)
3, Tm (OH)
3, Yb (OH)
3Or Lu (OH)
3Described rare earth oxide is La
2O
3, Nd
2O
3, Eu
2O
3, Gd
2O
3, Tb
2O
3, Er
2O
3, Yb
2O
3, CeO
2Or Y
2O
3Described rare earth chloride is YCl
3, CeCl
3, PrCl
3, NdCl
3, SmCl
3, EuCl
3, GdCl
3, TbCl
3, DyCl
3, ErCl
3, TmCl
3, YbCl
3, LuCl
3Or LaCl
3Described rare earth silicide is NdSi
2, CeSi
2, PrSi
2, SmSi
2, EuSi
2, GdSi
2, TbSi
2, DySi
2, HoSi
2, ErSi
2, TmSi
2, YbSi
2, LuSi
2Or YSi
2Described rare earth carbide is CeC
2, PrC
2, NdC
2, SmC
2, EuC
2, GdC
2, TbC
2, DyC
2, HoC
2, ErC
2, TmC
2, YbC
2Or LuC
2Described rare earth nitride is CeN, PrN, NdN, SmN, EuN, GdN or TbN.
The present invention is the fusion-cast method with the employing of the material modified manufacturing nog plate of antiwear cast iron alloy rough casting method, and wherein rare earth modified material adding mode is in casting alloy cast iron process, adds nano rare earth properties-correcting agent during the inoculation of stokehold; Perhaps in casting alloy cast iron process, earlier nano rare earth properties-correcting agent is put into casting ladle, pour the fused molten iron again into and inject die cavity by pouring gate.
The nog plate rough casting of manufacturing of the present invention satisfies existing specification of quality fully, and 1, good processing properties is arranged, can carry out surfacing cut processing, boring etc. smoothly; 2, no sand holes, pore, hard spot, burning into sand, casting flaw such as loose; 3, have uniform microstructure and Hardness Distribution; 4, has good wear resisting property; 5, has higher physical strength and impelling strength.
The existing nog plate of the ground finish efficiency ratio of the material modified manufacturing nog plate of antiwear cast iron alloy of the present invention has improved more than 50%, and work-ing life be existing more than a times of nog plate, and applied range.The nog plate of the material modified making of antiwear cast iron alloy of the present invention also is suitable for tungsten alloy ball, Ceramic Balls, glass sphere, agate ball and other artwork ball equal sphere material and carries out the grinding attrition process except that the processing steel ball.The hardness nog plate rough casting that the present invention makes is generally HRC47～56 after mechanical workout, quenching.
The manufacturing approach craft of the inventive method is simple, be convenient to operation.
Description of drawings
Fig. 1 is the optics metallurgical photo after the tarry matter plate of embodiment hentriaconta-quenches.
Embodiment
Below with representative example the present invention is described further again.Certainly to point out at this that protection domain of this patent is not subjected to the restriction of following given example.
Embodiment one: in the present embodiment antiwear cast iron alloy material modified be to make by cast alloy iron and rare earth modified material, rare earth modified material accounts for the material modified gross weight 0.01～5.00% of antiwear cast iron alloy.Described cast alloy iron is Cr-Mo-Cu cast alloy iron, W-Cr-Cu cast alloy iron, W-Cr-Cu-Mn cast alloy iron, Cr-Mo-Cu-Ni cast alloy iron, Mo-Ni cast alloy iron, graphitic cast iron, white cast iron or spheroidal graphite cast iron.Described rare earth modified material is that grain diameter is rare earth element and/or the rare earth compound of 1～500nm.
When the present embodiment middle-weight rare earths is material modified when being mixture, various rare earth modified storerooms can be by any than mixing.
Embodiment two: what present embodiment and embodiment one were different is that rare earth modified material accounts for the material modified gross weight 0.02～2.00% of antiwear cast iron alloy.Other is identical with embodiment one.
Embodiment three: what present embodiment and embodiment one were different is that rare earth modified material accounts for the material modified gross weight 0.1% of antiwear cast iron alloy.Other is identical with embodiment one.
Embodiment four: what present embodiment and embodiment one were different is that rare earth modified material accounts for the material modified gross weight 0.5% of antiwear cast iron alloy.Other is identical with embodiment one.
Embodiment five: what present embodiment and embodiment one were different is that rare earth modified material accounts for the material modified gross weight 1.0% of antiwear cast iron alloy.Other is identical with embodiment one.
Embodiment six: what present embodiment and embodiment one were different is that rare earth modified material accounts for the material modified gross weight 2.0% of antiwear cast iron alloy.Other is identical with embodiment one.
Embodiment seven: what present embodiment and embodiment one were different is that rare earth modified material is that grain diameter is 1～200nm.Other is identical with embodiment one.
Embodiment eight: what present embodiment and embodiment one were different is that rare earth modified material is that grain diameter is 20～50nm.Other is identical with embodiment one.
Embodiment nine: what present embodiment and embodiment one were different is that rare earth modified material is that grain diameter is 150～300nm.Other is identical with embodiment one.
Embodiment ten: what present embodiment and embodiment one were different is that rare earth modified material is that grain diameter is 200～400nm.Other is identical with embodiment one.
Embodiment 11: present embodiment and embodiment one difference are that described rare earth element is yttrium (Y), scandium (Sc), lanthanum (La), erbium (Er), cerium (Ce), praseodymium (Pr), neodymium (Nd), lutetium (Lu), samarium (Sm), gadolinium (Gd), dysprosium (Dy), holmium (Ho), thulium (Tm) or ytterbium (Yb).Other is identical with embodiment one.
Embodiment 12: present embodiment and embodiment one difference are that described rare earth element is yttrium (Y), scandium (Sc), lanthanum (La), erbium (Er), cerium (Ce), praseodymium (Pr), neodymium (Nd), samarium (Sm), iridium (Lr) or ytterbium (Yb).Other is identical with embodiment one.
Embodiment 13: present embodiment and embodiment one difference are that described rare earth element is yttrium (Y), lanthanum (La), erbium (Er), cerium (Ce), neodymium (Nd) or samarium (Sm).Other is identical with embodiment one.
Embodiment 14: present embodiment is that with embodiment one difference described rare earth compound is a kind of or wherein several the mixing in rare-earth hydroxide, rare earth oxide, rare earth chloride, rare earth silicide, rare earth carbide and the rare earth nitride.Other is identical with embodiment one.
When the rare earth compound of present embodiment is mixture, can be between various rare earth compounds by any than mixing.
Embodiment 15: present embodiment and embodiment 14 differences are that described rare-earth hydroxide is Ce (OH)
3, Nd (OH)
3, Eu (OH)
3, Gd (OH)
3, Tb (OH)
3, Dy (OH)
3, Ho (OH)
3, Er (OH)
3, Tm (OH)
3, Yb (OH)
3Or Lu (OH)
3Other is identical with embodiment 14.
Embodiment 16: present embodiment and embodiment 14 differences are that described rare-earth hydroxide is Ce (OH)
3, Nd (OH)
3, Eu (OH)
3, Gd (OH)
3, Tb (OH)
3, Dy (OH)
3, Ho (OH)
3, Er (OH)
3, Tm (OH)
3, Yb (OH)
3Or Lu (OH)
3Other is identical with embodiment 14.
Embodiment 17: present embodiment and embodiment 14 differences are that described rare earth oxide is La
2O
3, Nb
2O
3, Eu
2O
3, Gd
2O
3, Tb
2O
3, Er
2O
3, Yb
2O
3, CeO
2Or Y
2O
3Other is identical with embodiment 14.
Embodiment 18: present embodiment and embodiment 14 differences are that described rare earth oxide is La
2O
3, Tb
2O
3, Er
2O
3, CeO
2Or Y
2O
3Other is identical with embodiment 14.
Embodiment 19: present embodiment and embodiment 14 differences are that described rare earth chloride is YCl
3, CeCl
3, PrCl
3, NdCl
3, SmCl
3, EnCl
3, GdCl
3, TbCl
3, DyCl
3, ErCl
3, TmCl
3, YbCl
3, LuCl
3Or LaCl
3Other is identical with embodiment 14.
Embodiment 20: present embodiment and embodiment 14 differences are that described rare earth chloride is YCl
3, NdCl
3, EnCl
3, ErCl
3, TmCl
3, YbCl
3, LuCl
3Or LaCl
3Other is identical with embodiment 14.
Embodiment 21: present embodiment and embodiment 14 differences are that described rare earth silicide is NdSi
2, CeSi
2, PrSi
2, SmSi
2, EuSi
2, GdSi
2, TbSi
2, DySi
2, HoSi
2, ErSi
2, TmSi
2, YbSi
2, LuSi
2Or YSi
2Other is identical with embodiment 14.
Embodiment 22: present embodiment and embodiment 14 differences are that described rare earth silicide is NdSi
2, EuSi
2, DySi
2, HoSi
2, ErSi
2, LuSi
2Or YSi
2Other is identical with embodiment 14.
Embodiment 23: present embodiment and embodiment 14 differences are that described rare earth carbide is Re
3C, CeC
2, PrC
2, NdC
2, SmC
2, EuC
2, GdC
2, TbC
2, DyC
2, HoC
2, ErC
2, TmC
2, YbC
2Or LuC
2Other is identical with embodiment 14.
Embodiment 24: present embodiment and embodiment 14 differences are that described rare earth carbide is Re
3C, NdC
2, SmC
2, EuC
2, TbC
2, HoC
2, TmC
2, YbC
2Or LuC
2Other is identical with embodiment 14.
Embodiment 25: present embodiment and embodiment 14 differences are that described rare earth nitride is Y
3N, CeN, PrN, NdN, SmN, EuN, GdN or TbN.Other is identical with embodiment 14.
Embodiment 26: present embodiment and embodiment 14 differences are that described rare earth nitride is Y
3N, CeN, NdN, EuN or TbN.Other is identical with embodiment 14.
Embodiment 27: present embodiment and embodiment one are different is that the chemical ingredients of Cr-Mo-Cu cast alloy iron is made up of 2.6～3.3 parts of C, 1.0～2.0 parts of Si, 0.5～1.6 part of Mn, 0.08～0.7 part of Cr, 0.5～1.2 part of Mo and 0.8～1.55 part of Cu by ratio of weight and the number of copies.Other is identical with embodiment one.
Embodiment 28: what present embodiment and embodiment 27 were different is the rare earth element that also includes 0.01～0.2 weight part in the Cr-Mo-Cu cast alloy iron, a kind of or wherein several combination among 0.1～0.15 weight part V, 0.01～0.1 weight part Ti
Embodiment 29: what present embodiment and embodiment 27 were different is also to include the Ni that granularity is 30～50nm in the Cr-Mo-Cu cast alloy iron, and wherein Ni accounts for 0.01～0.03% of Cr-Mo-Cu cast alloy iron gross weight.
Embodiment 30: present embodiment is utilized the material modified employing fusion-cast of the antiwear cast iron alloy in the embodiment one manufactured nog plate rough casting, wherein rare earth modified material adding mode has two kinds: a kind of is in castingprocesses, adds nano rare earth properties-correcting agent during the inoculation of stokehold; Another kind of in castingprocesses, earlier nano rare earth properties-correcting agent is put into casting ladle, pour the fused molten iron again into and inject die cavity by pouring gate.
The embodiment hentriaconta-: the present embodiment antiwear cast iron alloy is material modified to be the Y of 20～40nm by Cr-Mo-Cu cast alloy iron and granularity
2O
3Make through the fusion-cast method, wherein Y
2O
3Account for the material modified gross weight 0.15% of antiwear cast iron alloy, the chemical ingredients of Cr-Mo-Cu cast alloy iron is made up of 3.1～3.3 parts of C, 1.8～2.0 parts of Si, 0.8～1.0 part of Mn, 0.5～0.7 part of Cr, 0.6～0.8 part of Mo, 0.8 part of Cu, 0.15 part of V and 0.1 part of Ti by ratio of weight and the number of copies.
The manufacturing of nog plate rough casting is carried out in 0.75 ton of medium frequency induction melting furnace in the present embodiment, and Cr-Mo-Cu cast alloy iron ingredients by weight is 500 kilograms, adopts the fusion-cast method, and in castingprocesses, adding granularity during the inoculation of stokehold is the Y of 20～40nm
2O
3With the nog plate rough casting through be machined into rotation (descending) nog plate that is of a size of 680mm * 190mm * 100mm and fixing (on) nog plate.With rotate nog plate and fixedly nog plate routinely thermal treatment process carry out quench treatment respectively and obtain rotation tarry matter plate and the fixed light nog plate that hardness reaches HRC52～53.Under the identical situation of lathe, pressure, rotating speed and cooling conditions, with the rotation tarry matter plate of present embodiment manufacturing and fixed light nog plate 7.38 tungstenalloy blank ball was ground to size 7.0 usefulness 7 hours, has then needed time (14 to 15 hours) more than one times with common alloy tarry matter plate.The wearing and tearing of measuring nog plate behind the grinding one dish alloy ball, the wearing and tearing of finding present embodiment tarry matter plate less than grinding one dribbling after common alloy tarry matter plate 1/2nd.As seen be worth the common alloy tarry matter plate of the existing use of fourth officer at least by the nog plate of present embodiment.
The common alloy tarry matter plate of present embodiment is that Shanghai high official position steel ball nog plate factory produces, and model is corresponding with ball grinder.Present embodiment uses the ball grinder model of tarry matter plate to be 3MJ4720.
Consist predominantly of martensite, bainite, carbide, graphite etc. in the metallographic structure of the abrasive sheet material after present embodiment is quenched, graphite form in the metallographic structure of the abrasive sheet material after the quenching is not the sort of flake graphite in the tradition tissue or the chrysanthemum shape form that is gathered into by point graphite, but be evenly distributed, the network-like graphite form (as Fig. 1) of tiny densification, One's name is legion.So just graphite form is alternate with the martensite of equally distributed refinement, bainite and carbide to be cooperated, for nog plate provides grinding capacity and excellent abrasive energy efficiently.
Embodiment 32: the present embodiment antiwear cast iron alloy is material modified to be the La of 20～40nm by Cr-Mo-Cu cast alloy iron and granularity
2O
3Make through the fusion-cast method, wherein La
2O
3Account for the material modified gross weight 0.02% of antiwear cast iron alloy, the chemical ingredients of Cr-Mo-Cu cast alloy iron is that the Ni of 30～50nm forms by 2.8 parts of C, 1.65 parts of Si, 0.55 part of Mn, 0.56 part of Cr, 0.62 part of Mo, 0.8 part of Cu, 0.15 part of V, 0.1 part of Ti and granularity by ratio of weight and the number of copies, and Ni accounts for 0.03% of Cr-Mo-Cu cast alloy iron gross weight.
The manufacturing of nog plate rough casting is carried out in 0.75 ton of medium frequency induction melting furnace in the present embodiment, and Cr-Mo-Cu cast alloy iron ingredients by weight is 680 kilograms, adopts the fusion-cast method, is the La of 20～40nm with granularity earlier
2O
3Put into nickeliferous casting ladle, pour into again in the fused molten iron.With the nog plate rough casting through be machined into rotation (descending) nog plate that is of a size of 680mm * 190mm * 100mm and fixing (on) nog plate.With rotate nog plate and fixedly nog plate routinely thermal treatment process carry out quench treatment respectively and obtain rotation tarry matter plate and the fixed light nog plate that hardness reaches HRC53～54.Under the identical situation of lathe, pressure, rotating speed and cooling conditions, it with the rotation tarry matter plate of present embodiment manufacturing and fixed light nog plate grinding model 2.8 tungstenalloy blank ball, 58 hours nog plate plywood (plywood is meant fixing nog plate and rotates the protruding outer rim of nog plate place and be about to the situation that begins to contact) up and down that continued grinding, total stock removal of accumulating ball during plywood is 1.55mm; With common alloy tarry matter plate then less than 29 hours with regard to plywood, during plywood the accumulation ball total stock removal only be 0.84mm.
The common alloy tarry matter plate of present embodiment is that Shanghai high official position steel ball nog plate factory produces, and model is corresponding with ball grinder.Present embodiment uses the ball grinder model of tarry matter plate to be 3MJ4720.
Embodiment 33: the present embodiment antiwear cast iron alloy is material modified to be the Y of 20～40nm by Cr-Mo-Cu cast alloy iron and granularity
2O
3Make through the fusion-cast method, wherein Y
2O
3Account for the material modified gross weight 0.8% of antiwear cast iron alloy, the chemical ingredients of Cr-Mo-Cu cast alloy iron by ratio of weight and the number of copies by 3.0 parts of C, 1.8 parts of Si, 0.8 part of Mn, 0.6 part of Cr, 0.65 part of Mo, 1.0 parts of Cu, 0.1 part of V and, 0.1 part of Ti forms.
The manufacturing of nog plate rough casting is carried out in 0.75 ton of medium frequency induction melting furnace in the present embodiment, and Cr-Mo-Cu cast alloy iron ingredients by weight is 580 kilograms, adopts the fusion-cast method, is the Y of 20～40nm with granularity earlier
2O
3Put into casting ladle, pour into again in the fused molten iron.With the nog plate rough casting through be machined into rotation (descending) nog plate that is of a size of 800mm * 360mm * 100mm and fixing (on) nog plate.With rotate nog plate and fixedly nog plate routinely thermal treatment process carry out quench treatment respectively and obtain rotation tarry matter plate and the fixed light nog plate that hardness reaches HRC53～54.Under the identical situation of lathe, pressure, rotating speed and cooling conditions, with the rotation tarry matter plate of present embodiment manufacturing and fixed light nog plate 8.29 bearing steel blank steel ball was ground to size 8.08 usefulness 3 hours, has then needed more than 6 hour with common alloy tarry matter plate.Measure nog plate behind the grinding one dish steel ball, the wearing and tearing of finding modification tarry matter plate less than grinding one dish steel ball after common alloy tarry matter plate 1/2nd.
The common alloy tarry matter plate of present embodiment is that Shanghai high official position steel ball nog plate factory produces, and model is corresponding with ball grinder.Present embodiment uses the ball grinder model of tarry matter plate to be 3ML4980A.
Claims (9)
1, a kind of antiwear cast iron alloy is material modified, it is characterized in that it is to be made by cast alloy iron and rare earth modified material, and rare earth modified material accounts for 0.01～5.00% of the material modified gross weight of antiwear cast iron alloy; Described cast alloy iron is Cr-Mo-Cu cast alloy iron, W-Cr-Cu cast alloy iron, W-Cr-Cu-Mn cast alloy iron, Cr-Mo-Cu-Ni cast alloy iron or Mo-Ni cast alloy iron; Described rare earth modified material is that grain diameter is rare earth element and/or the rare earth compound of 1～500nm.
2, a kind of antiwear cast iron alloy according to claim 1 is material modified, it is characterized in that rare earth modified material accounts for 0.02～2.00% of the material modified gross weight of antiwear cast iron alloy.
3, a kind of antiwear cast iron alloy according to claim 1 is material modified, it is characterized in that rare earth modified material accounts for 0.05～1.00% of the material modified gross weight of antiwear cast iron alloy.
4, a kind of antiwear cast iron alloy according to claim 1 is material modified, it is characterized in that rare earth modified material accounts for 0.05% of the material modified gross weight of antiwear cast iron alloy.
5, a kind of antiwear cast iron alloy according to claim 1 is material modified, and the grain diameter that it is characterized in that rare earth modified material is 1～200nm.
6, a kind of antiwear cast iron alloy according to claim 1 is material modified, and the grain diameter that it is characterized in that rare earth modified material is 20～60nm.
7, a kind of antiwear cast iron alloy according to claim 1 is material modified, it is characterized in that described rare earth element is yttrium, lanthanum, erbium, cerium, neodymium, samarium or ytterbium.
8, a kind of antiwear cast iron alloy according to claim 1 is material modified, it is characterized in that described rare earth compound is a kind of or wherein several mixing in rare-earth hydroxide, rare earth oxide, rare earth chloride, rare earth silicide, rare earth carbide and the rare earth nitride.
9, a kind of antiwear cast iron alloy according to claim 8 is material modified, it is characterized in that described rare-earth hydroxide is Ce (OH)
3, Nd (OH)
3, Eu (OH)
3, Gd (OH)
3, Tb (OH)
3, Dy (OH)
3, Ho (OH)
3, Er (OH)
3, Tm (OH)
3, Yb (OH)
3Or Lu (OH)
3Described rare earth oxide is La
2O
3, Nd
2O
3, Eu
2O
3, Gd
2O
3, Tb
2O
3, Er
2O
3, Yb
2O
3, CeO
2Or Y
2O
3Described rare earth chloride is YCl
3, CeCl
3, PrCl
3, NdCl
3, SmCl
3, EuCl
3, GdCl
3, TbCl
3, DyCl
3, ErCl
3, TmCl
3, YbCl
3, LuCl
3Or LaCl
3Described rare earth silicide is NdSi
2, CeSi
2, PrSi
2, SmSi
2, EuSi
2, GdSi
2, TbSi
2, DySi
2, HoSi
2, ErSi
2, TmSi
2, YbSi
2, LuSi
2Or YSi
2Described rare earth carbide is CeC
2, PrC
2, NdC
2, SmC
2, EuC
2, GdC
2, TbC
2, DyC
2, HoC
2, ErC
2, TmC
2, YbC
2Or LuC
2Described rare earth nitride is CeN, PrN, NdN, SmN, EuN, GdN or TbN.
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| CNB2007101447239A CN100537812C (en) | 2007-12-03 | 2007-12-03 | A kind of antiwear cast iron alloy is material modified |
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| CN107686934A (en) * | 2017-08-02 | 2018-02-13 | 马鞍山市万鑫铸造有限公司 | A kind of antiwear cast iron alloy is modified cast iron materials and its manufacture method |
| CN108728726A (en) * | 2018-08-31 | 2018-11-02 | 山西华翔集团股份有限公司 | A kind of tough gray cast iron material of height and production method of dopen Nano lanthanum oxide particles |
| CN109837453B (en) * | 2019-04-16 | 2020-05-22 | 郑州大学 | Manufacturing method of working platform of planer |
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