CN1091171C - Method for preparing metal-base composite material reinforced by non-continuous ceramics reinforcing agent - Google Patents
Method for preparing metal-base composite material reinforced by non-continuous ceramics reinforcing agent Download PDFInfo
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- CN1091171C CN1091171C CN97105014A CN97105014A CN1091171C CN 1091171 C CN1091171 C CN 1091171C CN 97105014 A CN97105014 A CN 97105014A CN 97105014 A CN97105014 A CN 97105014A CN 1091171 C CN1091171 C CN 1091171C
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- 239000012744 reinforcing agent Substances 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000000919 ceramic Substances 0.000 title claims abstract description 11
- 239000002131 composite material Substances 0.000 title claims description 33
- 239000011159 matrix material Substances 0.000 claims abstract description 28
- 239000002184 metal Substances 0.000 claims abstract description 22
- 229910052751 metal Inorganic materials 0.000 claims abstract description 22
- 239000011248 coating agent Substances 0.000 claims abstract description 19
- 238000000576 coating method Methods 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 13
- 239000002245 particle Substances 0.000 claims abstract description 11
- 229910018575 Al—Ti Inorganic materials 0.000 claims abstract description 5
- 229910018106 Ni—C Inorganic materials 0.000 claims abstract description 5
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 5
- 239000000956 alloy Substances 0.000 claims abstract description 5
- KHYBPSFKEHXSLX-UHFFFAOYSA-N iminotitanium Chemical compound [Ti]=N KHYBPSFKEHXSLX-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910001000 nickel titanium Inorganic materials 0.000 claims abstract description 5
- 229910052802 copper Inorganic materials 0.000 claims abstract description 4
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 3
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 3
- 239000011156 metal matrix composite Substances 0.000 claims abstract 10
- 238000002360 preparation method Methods 0.000 claims description 18
- 238000009713 electroplating Methods 0.000 claims description 6
- 238000007772 electroless plating Methods 0.000 claims description 3
- 239000003623 enhancer Substances 0.000 claims description 3
- 238000004663 powder metallurgy Methods 0.000 claims description 2
- 150000002739 metals Chemical class 0.000 claims 1
- 239000000758 substrate Substances 0.000 claims 1
- 230000003014 reinforcing effect Effects 0.000 abstract description 2
- QYEXBYZXHDUPRC-UHFFFAOYSA-N B#[Ti]#B Chemical compound B#[Ti]#B QYEXBYZXHDUPRC-UHFFFAOYSA-N 0.000 abstract 1
- 229910033181 TiB2 Inorganic materials 0.000 abstract 1
- 239000012745 toughening agent Substances 0.000 description 25
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 14
- 238000007747 plating Methods 0.000 description 10
- 239000000843 powder Substances 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 239000000243 solution Substances 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000002848 electrochemical method Methods 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- 239000012528 membrane Substances 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 241000080590 Niso Species 0.000 description 3
- 206010070834 Sensitisation Diseases 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 230000001186 cumulative effect Effects 0.000 description 3
- 229910002804 graphite Inorganic materials 0.000 description 3
- 239000010439 graphite Substances 0.000 description 3
- 239000013500 performance material Substances 0.000 description 3
- 230000008313 sensitization Effects 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 101150003085 Pdcl gene Proteins 0.000 description 2
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 description 2
- 239000004141 Sodium laurylsulphate Substances 0.000 description 2
- 229910004349 Ti-Al Inorganic materials 0.000 description 2
- 229910004692 Ti—Al Inorganic materials 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 2
- 239000011247 coating layer Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 235000019333 sodium laurylsulphate Nutrition 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000011800 void material Substances 0.000 description 2
- KWSLGOVYXMQPPX-UHFFFAOYSA-N 5-[3-(trifluoromethyl)phenyl]-2h-tetrazole Chemical compound FC(F)(F)C1=CC=CC(C2=NNN=N2)=C1 KWSLGOVYXMQPPX-UHFFFAOYSA-N 0.000 description 1
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 1
- 229910018487 Ni—Cr Inorganic materials 0.000 description 1
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000007792 gaseous phase Substances 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 229910001120 nichrome Inorganic materials 0.000 description 1
- 150000002815 nickel Chemical class 0.000 description 1
- 239000000615 nonconductor Substances 0.000 description 1
- PIBWKRNGBLPSSY-UHFFFAOYSA-L palladium(II) chloride Chemical compound Cl[Pd]Cl PIBWKRNGBLPSSY-UHFFFAOYSA-L 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000007420 reactivation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000001235 sensitizing effect Effects 0.000 description 1
- 239000001632 sodium acetate Substances 0.000 description 1
- 229960004249 sodium acetate Drugs 0.000 description 1
- 235000017281 sodium acetate Nutrition 0.000 description 1
- 239000001509 sodium citrate Substances 0.000 description 1
- 229910001379 sodium hypophosphite Inorganic materials 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- HRXKRNGNAMMEHJ-UHFFFAOYSA-K trisodium citrate Chemical compound [Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O HRXKRNGNAMMEHJ-UHFFFAOYSA-K 0.000 description 1
- 229940038773 trisodium citrate Drugs 0.000 description 1
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- Manufacture Of Alloys Or Alloy Compounds (AREA)
- Chemically Coating (AREA)
Abstract
一种非连续陶瓷增强剂增强的金属基复合材料的制备方法，适用于用非连续增强剂增强的金属基复合材料，其特征在于：在制备金属基复合材料之前，将非连续增强剂表面预制该金属基体涂层，涂层厚度在20～100μm；可适用的金属基体材料选择为Ni-Cr-Al-Ti、Fe-Ni-C、Ni-Ti合金，Ni、Mo、Cu金属，增强剂选择为TiC、WC、SiC、TiB2的颗粒或晶须。本发明制备出的金属基复合材料具有更为良好的性能，且成本提高不多。A method for preparing a discontinuous ceramic reinforcing agent-reinforced metal-matrix composite material, suitable for metal-matrix composite materials reinforced with a discontinuous reinforcing agent, characterized in that: before preparing the metal-matrix composite material, the surface of the discontinuous reinforcing agent is prefabricated The coating thickness of the metal matrix is 20-100μm; the applicable metal matrix materials are Ni-Cr-Al-Ti, Fe-Ni-C, Ni-Ti alloy, Ni, Mo, Cu metal, reinforcing agent Choices are particles or whiskers of TiC, WC, SiC, TiB2 . The metal matrix composite material prepared by the invention has better performance, and the cost is not increased much.
Description
The present invention relates to the preparation of matrix material, a kind of preparation method with metallic coating ceramics reinforcing agent enhanced metal-base composites is provided especially.
Excellent properties such as high temperature resistant, corrosion-resistant, wear-resistant and high strength that metal-base composites has, high tenacity, be widely used in space flight, chemical industry, fields such as machinery, it combines high-temperature, the hardness of Plastic Deformation, toughness and stupalith, high-modulus, corrosion resistant advantage can be used under the working conditions of harshnesses such as high temperature, burn into wearing and tearing.But because complicated process of preparation and the high restriction of cost only are applied in limited field for a long time.With the development of reduction of toughener cost and composite material preparation process technology, the range of application of metal-base composites enlarges gradually.Space flight, the aviation field composite applications adopts continuous fibre enhanced height ratio strong metal based composites usually, excellent performance, but cost is higher and complex process, high temperature corrosion-resisting metal-base composites for industrial application, people are more interested to be that discontinuous toughener strengthens, toughness reinforcing matrix material, this is because discontinuous toughener cost is low on the one hand, it is simple that discontinuous on the other hand toughener strengthens metal-base composites preparation technology, can adopt extruding in addition, technology such as rolling is carried out secondary processing, in general, discontinuous toughener enhanced metal-base composites prepares with traditional powder metallurgical technique, be about to metallic matrix and toughener uniform mixing and prepare matrix material through the liquid phase sintering densification, ununiformity in the mixing process, toughener particle on the one hand will weaken, whisker combines with the interface of metallic matrix, influences the performance of coking property and material on the other hand.Crux problem in the therefore discontinuous toughener enhanced metal-base composites preparation, the one, the interface compatibility of toughener and matrix, another is the dispersing uniformity problem of ceramics reinforcing agent in metallic matrix.
The object of the present invention is to provide a kind of preparation method of non-continuous ceramics reinforcing agent enhanced metal-base composites, its metal-base composites of preparing has more good performance, and cost improves few.
The invention provides a kind of preparation method of metal-base composites, be applicable to discontinuous toughener enhanced metal-base composites, adopt powder metallurgy process, promptly pottery and the metal with metallic coating is mixed in proportion, and through high temperature sintering, obtains matrix material; Before the preparation metal-base composites, with prefabricated this metallic matrix coating in discontinuous toughener surface, coat-thickness is at 20～100 μ m, metal matrix material applicatory comprises Ni-Cr-Al-Ti, Fe-Ni-C, Ni-Ti alloy, Ni, Mo or Cu metal, toughener comprises TiC, WC, SiC, TiB
2Particle or whisker.For solving the compatibility problem between ceramic particle and matrix better, the metallic coating of good wettability is arranged all with toughener and metallic matrix simultaneously at toughener surface preparation one deck earlier before the prefabricated metal basal body coating layer.Toughener for conduction directly adopts electric plating method, prefabricated metal coating on toughener.For nonconducting toughener, at first form metallic membrane on the surface by electroless plating, form the film that needs with electrochemical plating then.This is another characteristics of the present invention to carry out pre-plating coating with electrochemical method on ceramic particle, whisker surface, chemical vapour deposition relatively, and physical gaseous phase deposition coating, electrochemical process has pollution-free and low cost, and the present invention has following several preferable selection:
1. metallic matrix is chosen as Ni-Cr-Al-Ti, Fe-Ni-C or Ni-Ti alloy, and toughener is chosen as TiC or WC plating Ni film, and the add-on of toughener accounts for 30～80% of cumulative volume.
2. metallic matrix is chosen as the Cu based composites, and toughener is chosen as SiC whisker, TiB
2, Mo particle plating Cu film, the toughener add-on accounts for 5～50% of cumulative volume.
3. metallic matrix is chosen as the Ni based composites, and toughener is chosen as SiC whisker plating Ni film, and the toughener add-on accounts for 30～70% of cumulative volume.
In a word, the present invention carries out precoated layer to solve the problem of interface compatibility and toughener dispersing uniformity with electrochemical method on ceramic particle, whisker surface, mechanical properties such as the density that obtains of metal-base composites such as coating enhancer enhanced Cu, Ni-Cr, intensity, hardness are all not high than equal volume fractional for the composite fortifier enhanced metal-base composites that has metallic coating that it obtained, and below by embodiment in detail the present invention are described in detail.
The preparation of embodiment 1 TiC-Ni-Cr-Ti-Al metal-base composites
1. the top coat of toughener TiC:
Adopt electrochemical method at TiC surface preplating Ni film
The sensitization of TiC particle surface and activating process:
1. sensitization: sensitization solvent:
SnCl
2·2H
2O 10～20(g)
Hcl 40～50ml (37% solution)
Water 1000ml
Room temperature 5～10 minutes
2. activation: activated solution
PdCl
2(Palladous chloride) 0.4～0.8 (g)
Hcl 10ml (30% solution)
Water 1000ml
Room temperature 5～10 minutes
3. Ni chemical plating solution:
Single nickel salt (NiSO
47H
2O) 20～25 grams per liters
Sodium hypophosphite (NaH
2Po
2H
2O) 15～20 grams per liters
Sodium-acetate NaC
2H
3O
210 grams per liters
Trisodium Citrate Na
3C
6H
3O
72H
2O 10 grams per liters
PH value 4.1～4.4
85～90 ℃ of temperature
Further adopt electro-plating method to prepare TiC/Ni film composite powder again after the TiC surface forms the Ni film: control Ni film thickness is at 20～100 μ m.
4. Ni electroplating bath solution
NiSO
47H
2O 250～300 grams per liters
NiCl
26H
2O 30～60 grams per liters
H
3BO
335～40 grams per liters
Sodium lauryl sulphate
C
12H
25SO
4Na 0.25～0.1 grams per liter
pH 3～4
45～60 ℃ of temperature
Current density 1～2.5A/dm
2
2. after obtaining TiC/Ni film composite powder, evenly at 980 ℃～1050 ℃ vacuum solid solution diffusions,, add a certain amount of activator (CrCl for strengthening the diffusibility of Cr with the Cr powder mixes
36H
2O, NH
4Cl, CrBr
36H
2O etc.) prepare TiC-NiCr composite powder with good interface structure, add Ti-Al through hot pressing, normal pressure burning method is prepared high performance TiC-NiCrTiAl matrix material, composition is: 50TiC, 26Ni, 22Cr, 1.5Ti, 0.5Al (volume parts) compared performance with the material that the end adds coating and is significantly improved.Performance relatively sees the following form.
| Performance materials | K IC (MPam 1/2) | O f (MPa) | H v |
| Coating is arranged | 20 | 1500 | 2300 |
| No coating | 15 | 800 | 1900 |
Embodiment 2 SiC whisker Cu based composites
The SiC whisker is the same with the TiC particle to be non-conductor, could use the electrochemical method plated film behind the employing activating surface, thereby obtains the compound whisker of SiC/Cu film,
1. sensitizing:
SnCl
2·2H
2O 10～20(g)
HCl 40～60ml (37% aqueous solution)
Water 1000ml
Room temperature 5～10 minutes
2. reactivation process
PdCl
2 0.5～0.8(g)
Hcl 10ml (37% solution)
Water 1000ml
Room temperature 5～10 minutes
3. Electroless Cu Plating:
First part: CuSO
45H
2O 30～50 (g)
KNaC
4H
4O
6·4H
2O 160～180(g)
NaOH 50(g)
Water 1000 (g)
Second section: HCHO 200～300ml (37%)
Mix two portions solution, at room temperature electroless plating is 5～10 minutes
4. electroplate the Cu film
CuSO
4·5H
2O 150～250(8)
H
2SO
4 45～110(g)
20～50 ℃ of temperature
Current density 1～3A/dm
2
Obtain SiC whisker/compound whisker of Cu film, preparation SiC whisker/Cu matrix material, its performance is higher than uncoated matrix material, and (the SiC whisker of 5% volume parts) sees the following form.
| Performance materials | Void content (%) | Hardness (HB) | Ultimate compression strength (MPa) | Thermodiffusion (mm 2/s) | Thermal conductivity W/m ℃ |
| Plated film | 2.78 | 218 | 625 | 21 | 60 |
| The end plated film | 20.00 | 193 | 525 | 4.9 | 12 |
The end plated film adopts direct mechanical to mix and obtains
Example 3 TiB
2/ Cu based composites
TiB
2Plating Cu membrane method is with the SiC/Cu composite material preparation process, and its matrix material with the mechanically mixing powdered preparation is compared performance and is improved: (TiB
2Account for 50%)
| Performance materials | Void content (%) | Hardness (HB) | Ultimate compression strength (MPa) | Thermodiffusion (mm 2/s) | Thermal conductivity (W/m ℃) |
| Plated film | 1.2 | 208 | 643 | 56 | 180 |
| The end plated film | 5.18 | 143 | 462 | 48 | 150 |
The end plated film adopts direct mechanical to mix and obtains
The preparation of real side 4.Cu/Mo matrix material
Cu adopts the mode of Direct Electroplating to carry out in the plating of Mo surface:
CuSo
45H
2O is 150～250 (g)
H
2SO
4 45～110(g)
20～50 ℃ of temperature
Current density 1～3A/dm
2
Can obtain the Cu plated film of required thickness and the Cu/Mo matrix material of mechanically mixing, performance is compared as follows: (Mo accounts for 60%)
The metal coating layer material of the black powder of example 5 stones
The electroplated Ni of powdered graphite, metallic membrane technologies such as Cu are as follows:
C/Cu film: with the Cu/Mo electroplating technology;
The C/Ni membrane process:
NiSO
47H
2O 250～300 grams per liters
NiCl
26H
2O 30～60 grams per liters
H
3BO
335～40 grams per liters
Sodium lauryl sulphate 0.25～0.1 grams per liter
(C
12H
25SO
4Na)
PH value 3～4
Temperature: 45～60 ℃
Current density: 1～2.5A/dm
2
Graphite/the Cu, the Ni film composite powder material that obtain are applied to inhale ripple filtering layer material, can increase substantially wave-absorbing effect.
Add the resonance absorbing peak that graphite/Cu film powder improves the multilayer cartridge of impedance filtering layer, the frequency span of basic reflectivity is wideer approximately one times than individual layer cartridge.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97105014A CN1091171C (en) | 1997-01-13 | 1997-01-13 | Method for preparing metal-base composite material reinforced by non-continuous ceramics reinforcing agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97105014A CN1091171C (en) | 1997-01-13 | 1997-01-13 | Method for preparing metal-base composite material reinforced by non-continuous ceramics reinforcing agent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1188158A CN1188158A (en) | 1998-07-22 |
| CN1091171C true CN1091171C (en) | 2002-09-18 |
Family
ID=5167576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97105014A Expired - Fee Related CN1091171C (en) | 1997-01-13 | 1997-01-13 | Method for preparing metal-base composite material reinforced by non-continuous ceramics reinforcing agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1091171C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100406170C (en) * | 2006-02-08 | 2008-07-30 | 江苏大学 | Method for preparing TiC/Ni3Al intermetallic compound based surface composite coating |
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|---|---|---|---|---|
| CN100348778C (en) * | 2005-09-22 | 2007-11-14 | 上海交通大学 | Chemical copper plating process for the surface of SiC ceramic grain |
| CN101161374B (en) * | 2007-11-27 | 2010-08-11 | 吉林大学 | Reactant composition for preparing multiple phase confusion TiB2-TiC ceramic particle gradient enhancement metal-based complex material |
| CN101748306B (en) * | 2008-12-02 | 2011-12-07 | 苏州有色金属研究院有限公司 | Multiphase ceramic hybrid composite reinforced metal matrix composite material and preparation process thereof |
| CA2788673C (en) * | 2010-02-05 | 2019-04-09 | Weir Minerals Australia Ltd | Hard metal materials |
| CN102218857B (en) * | 2011-05-27 | 2014-07-23 | 合肥金四达科技有限公司 | Composite material coated with SiC-Fe based alloy layer and preparation method of composite material |
| CN103556002B (en) * | 2013-11-22 | 2016-03-02 | 广东正德材料表面科技有限公司 | High-performance Ni base alloy-TiB 2nanometer powder and preparation method thereof |
| CN104451664B (en) * | 2014-11-27 | 2017-04-05 | 湖北汽车工业学院 | The preparation method of in-situ authigenic WC+TiC composite strengthening iron-based wear-resistant coatings |
| CN105543535B (en) * | 2015-12-18 | 2017-09-19 | 聊城大学 | Al4SiC4 and Cr synergistically strengthened mesh/spherical copper material and its preparation method |
| CN106583967B (en) * | 2017-01-16 | 2018-12-14 | 武汉工程大学 | A kind of TiH2- Ni-Cu+TiC composite solder and its preparation method and application |
| CN108085534A (en) * | 2017-12-21 | 2018-05-29 | 湖北工业大学 | A kind of in-situ synthesis of boride titanium enhancing Cu-base composites and its preparation method and application |
| CN108118178A (en) * | 2017-12-21 | 2018-06-05 | 湖北工业大学 | A kind of in-situ synthesis of boride titanium-titanium carbide complex phase ceramic enhancing Cu-base composites and its preparation method and application |
| CN108103342B (en) * | 2017-12-21 | 2019-07-16 | 湖北工业大学 | In-situ synthesis of chromium boride-zirconium boride composite ceramic reinforced copper matrix composite material and preparation method and application thereof |
| CN108034851A (en) * | 2017-12-21 | 2018-05-15 | 湖北工业大学 | A kind of in-situ synthesis of TiC reinforced copper-based composite material and its preparation method and application |
| CN109280955A (en) * | 2018-11-20 | 2019-01-29 | 沈阳工学院 | A kind of heat resistant and wear resistant MCrAlSiC composite coating |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5540065A (en) * | 1978-09-14 | 1980-03-21 | Nippon Steel Corp | Mold for steel continuous casting |
-
1997
- 1997-01-13 CN CN97105014A patent/CN1091171C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5540065A (en) * | 1978-09-14 | 1980-03-21 | Nippon Steel Corp | Mold for steel continuous casting |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100406170C (en) * | 2006-02-08 | 2008-07-30 | 江苏大学 | Method for preparing TiC/Ni3Al intermetallic compound based surface composite coating |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1188158A (en) | 1998-07-22 |
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