CN1727420A - Method for preparing self-lubricating coat in use for high temperature - Google Patents
Method for preparing self-lubricating coat in use for high temperature Download PDFInfo
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- CN1727420A CN1727420A CN 200510042915 CN200510042915A CN1727420A CN 1727420 A CN1727420 A CN 1727420A CN 200510042915 CN200510042915 CN 200510042915 CN 200510042915 A CN200510042915 A CN 200510042915A CN 1727420 A CN1727420 A CN 1727420A
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Abstract
A refractory self-lubricating coated layer is prepared through proportionally mixing Ni, Cr, Cr2O3, BaF2, CaF2 and Ag high-energy ball grinding, preparing slurry, coating on the target surface, baking, cold isostatic pressing for compacting it, and sintering at 800-1200 deg.C for 1-3 hr. Its strength is more than 40 MPa.
Description
Technical field
The invention belongs to high temperature resistant frictional wear material field, particularly a kind of preparation method of high-temperature self-lubricating coating.
Background technology
Because traditional graphite, tetrafluoroethylene, MoS
2When being higher than 300 ℃, temperature lost lubrication Deng solid self-lubricant material, TiN, TiAlN, Cr
3C
2Can not use because of the antioxidant property difference when being higher than 450 ℃ etc. coating, so high temperature resistant (room temperature～650 ℃) self-lubricating PS304 coating (United States Patent (USP): US5866518) was succeeded in developing in U.S. NASA Green research centre on the basis at PS300 in 1995～1997 years.This coating is NiCr (a 80/20) alloy substrate, comprises 3 kinds of self-lubricating phases, Cr
2O
3, Ag and BaF
2/ CaF
2Eutectic (62/38).Wherein, the NiCr alloy substrate (accounts for gross weight: 60wt%) provide good resistance to high temperature oxidation, resistance to high temperature corrosion performance and basic physical strength; Cr
2O
3(account for gross weight: but the 20wt%) intensity of strengthened coat not only, and effective high temperature lubricating performance (temperature＞500 ℃) can be provided; When temperature during greater than 450 ℃, BaF
2/ CaF
2(account for gross weight: 10wt%) can provide good lubricating property; When temperature was lower than 450 ℃, Ag (accounted for gross weight: 10wt%) can provide good lubricating property.
The course of processing of PS304 is earlier with NiCr powder (44～74 μ m), Cr
2O
3Powder (30～44 μ m), Ag powder (45～100 μ m) and eutectic BaF
2/ CaF
2Be coated onto on the axle journal with plasma spray again after (about 50 μ m) powder mixes.Its coating is thick lamellar structure, and 20% the hole of having an appointment.Because PS304 coating its thickness in long-time pyroprocess can increase by 3～5%, therefore the PS304 coating must be annealed under the high temperature more than 540 ℃ and be improved the intensity of coating in 150 hours with stable dimensions and microstructure, the maximum intensity of PS304 coating only is 30MPa, and the intensity of coating is low to be to cause coating weak point in work-ing life, coating to be peeled off and the topmost factor that lost efficacy.
Therefore, there are serious deficiencies such as microstructure is seriously inhomogeneous, intensity is low in the PS304 coating, easily causes coating in use to be stripped from prematurely to come off and loses lubrication.Therefore, eliminating lamellar structure and porosity thick in the PS304 coating and the intensity that increases substantially coating, is the key that improves rub resistance polishing machine, thermal property and the mechanical property of PS304 coating.
Summary of the invention
The objective of the invention is to overcome the shortcoming of above-mentioned prior art, the preparation method of a kind of long service life, high-intensity high-temperature self-lubricating coating is provided.
For achieving the above object, the preparation method that the present invention adopts is :) at first with purity greater than 99.0%, particle size is 30 μ m～Ni, Cr of 200 μ m, Cr
2O
3, BaF
2, CaF
2, the Ag powder presses Ni:40%～50%, Cr:5%～15%, Cr
2O
3: 5%～20%, BaF
2: 5%～10%, CaF
2: 1%～5%, surplus is that the material of Ag mixes by weight; It is 10～20: 1 in ratio of grinding media to material that said mixture is adopted high energy ball mill; rotating speed is with gasoline medium or protection of inert gas ball milling 5 hours～20 hours under the condition of 800-1200rps; make the powder uniform mixing, and ball milling becomes the composite granule of granularity less than 10 μ m, wherein Cr
2O
3, BaF
2, CaF
2Grain-size less than 200nm; The polyvinyl alcohol that in above-mentioned composite granule, adds composite granule weight 0.5～3% as binding agent after again with water or alcohol by 2～10: 1 weight ratio is mixed and made into slurry, be coated on the resistant to elevated temperatures friction contact plane of needs the slurry of making or journal surface, form coating, then under 50～120 ℃ condition with coated and dried; Adopt cold press process to handle under 500～1000Mpa condition 0.5～5 minute to the plane coating, the axle journal coating adopts the isostatic cool pressing method to handle under 500～3000Mpa condition 0.5～5 minute; At last will be through colding pressing or the coating of isostatic cool pressing got final product in 800 ℃～1200 ℃ sintering at vacuum condition or under argon gas or nitrogen protection in 1～3 hour.
It is raw material that the present invention adopts the metal-powder of 30～200 μ m, has the low advantage of cost, and the grain fineness number of powder is less than 200nm behind the high-energy ball milling, and its sintering character is good, the self-lubricating phase Cr in the coating
2O
3, BaF
2, CaF
2Grain-size less than 200nm, be evenly distributed in the NiCr matrix, and the self-lubricating of existing P S304 coating distributes for micron order mutually, skewness, and its intensity of coating that makes by preparation method of the present invention is higher more than 30% than the intensity of PS304 up to 40MPa.
Embodiment
Embodiment 1: at first with purity greater than 99.0%, particle size is 30 μ m～Ni, Cr of 200 μ m, Cr
2O
3, BaF
2, CaF
2, the Ag powder presses Ni:40%, Cr:15%, Cr
2O
3: 20%, BaF
2: 10%, CaF
2: 5%, surplus is that the material of Ag mixes by weight; It is 10: 1 in ratio of grinding media to material that said mixture is adopted high energy ball mill, rotating speed be under the condition of 1200rps with gasoline medium or protection of inert gas ball milling 16 hours, make the powder uniform mixing, and ball milling becomes the composite granule of granularity less than 10 μ m, wherein Cr
2O
3, BaF
2, CaF
2Grain-size less than 200nm; The polyvinyl alcohol that adds composite granule weight 3% in above-mentioned composite granule is mixed and made into slurry with water or alcohol by 8: 1 weight ratio after as binding agent again, be coated on the resistant to elevated temperatures friction contact plane of needs the slurry of making or journal surface, form coating, then under 50 ℃ condition with coated and dried; Adopt cold press process to handle 2.5 minutes under the 700Mpa condition to the plane coating, the axle journal coating adopts the isostatic cool pressing method to handle 0.5 minute under the 3000Mpa condition; At last will be through colding pressing or the coating of isostatic cool pressing got final product in 800 ℃ of sintering at vacuum condition or under argon gas or nitrogen protection in 3 hours.
Embodiment 2: at first with purity greater than 99.0%, particle size is 30 μ m～Ni, Cr of 200 μ m, Cr
2O
3, BaF
2, CaF
2, the Ag powder presses Ni:50%, Cr:5%, Cr
2O
3: 16%, BaF
2: 5%, CaF
2: 1%, surplus is that the material of Ag mixes by weight; It is 16: 1 in ratio of grinding media to material that said mixture is adopted high energy ball mill, rotating speed be under the condition of 900rps with gasoline medium or protection of inert gas ball milling 5 hours, make the powder uniform mixing, and ball milling becomes the composite granule of granularity less than 10 μ m, wherein Cr
2O
3, BaF
2, CaF
2Grain-size less than 200nm; The polyvinyl alcohol that adds composite granule weight 0.5% in above-mentioned composite granule is mixed and made into slurry with water or alcohol by 5: 1 weight ratio after as binding agent again, be coated on the resistant to elevated temperatures friction contact plane of needs the slurry of making or journal surface, form coating, then under 80 ℃ condition with coated and dried; Adopt cold press process to handle 5 minutes under the 500Mpa condition to the plane coating, the axle journal coating adopts the isostatic cool pressing method to handle 5 minutes under the 500Mpa condition; At last will be through colding pressing or the coating of isostatic cool pressing got final product in 1200 ℃ of sintering at vacuum condition or under argon gas or nitrogen protection in 1 hour.
Embodiment 3: at first with purity greater than 99.0%, particle size is 30 μ m～Ni, Cr of 200 μ m, Cr
2O
3, BaF
2, CaF
2, the Ag powder presses Ni:45%, Cr:10%, Cr
2O
3: 5%, BaF
2: 8%, CaF
2: 4%, surplus is that the material of Ag mixes by weight; It is 12: 1 in ratio of grinding media to material that said mixture is adopted high energy ball mill, rotating speed be under the condition of 1100rps with gasoline medium or protection of inert gas ball milling 20 hours, make the powder uniform mixing, and ball milling becomes the composite granule of granularity less than 10 μ m, wherein Cr
2O
3, BaF
2, CaF
2Grain-size less than 200nm; The polyvinyl alcohol that adds composite granule weight 1.0% in above-mentioned composite granule is mixed and made into slurry with water or alcohol by 2: 1 weight ratio after as binding agent again, be coated on the resistant to elevated temperatures friction contact plane of needs the slurry of making or journal surface, form coating, then under 110 ℃ condition with coated and dried; Adopt cold press process to handle 0.5 minute under the 1000Mpa condition to the plane coating, the axle journal coating adopts the isostatic cool pressing method to handle 1 minute under the 2800Mpa condition; At last will be through colding pressing or the coating of isostatic cool pressing got final product in 1000 ℃ of sintering at vacuum condition or under argon gas or nitrogen protection in 2 hours.
Embodiment 4: at first with purity greater than 99.0%, particle size is 30 μ m～Ni, Cr of 200 μ m, Cr
2O
3, BaF
2, CaF
2, the Ag powder presses Ni:48%, Cr:13%, Cr
2O
3: 10%, BaF
2: 9%, CaF
2: 3%, surplus is that the material of Ag mixes by weight; It is 20: 1 in ratio of grinding media to material that said mixture is adopted high energy ball mill, rotating speed be under the condition of 800rps with gasoline medium or protection of inert gas ball milling 8 hours, make the powder uniform mixing, and ball milling becomes the composite granule of granularity less than 10 μ m, wherein Cr
2O
3, BaF
2, CaF
2Grain-size less than 200nm; The polyvinyl alcohol that adds composite granule weight 1.6% in above-mentioned composite granule is mixed and made into slurry with water or alcohol by 10: 1 weight ratio after as binding agent again, be coated on the resistant to elevated temperatures friction contact plane of needs the slurry of making or journal surface, form coating, then under 90 ℃ condition with coated and dried; Adopt cold press process to handle 2 minutes under the 800Mpa condition to the plane coating, the axle journal coating adopts the isostatic cool pressing method to handle 3 minutes under the 1600Mpa condition; At last will be through colding pressing or the coating of isostatic cool pressing got final product in 900 ℃ of sintering at vacuum condition or under argon gas or nitrogen protection in 2.5 hours.
Embodiment 5: at first with purity greater than 99.0%, particle size is 30 μ m～Ni, Cr of 200 μ m, Cr
2O
3, BaF
2, CaF
2, the Ag powder presses Ni:42%, Cr:9%, Cr
2O
3: 12%, BaF
2: 6%, CaF
2: 2%, surplus is that the material of Ag mixes by weight; It is 15: 1 in ratio of grinding media to material that said mixture is adopted high energy ball mill, rotating speed be under the condition of 1000rps with gasoline medium or protection of inert gas ball milling 10 hours, make the powder uniform mixing, and ball milling becomes the composite granule of granularity less than 10 μ m, wherein Cr
2O
3, BaF
2, CaF
2Grain-size less than 200nm; The polyvinyl alcohol that adds composite granule weight 2% in above-mentioned composite granule is mixed and made into slurry with water or alcohol by 4: 1 weight ratio after as binding agent again, be coated on the resistant to elevated temperatures friction contact plane of needs the slurry of making or journal surface, form coating, then under 120 ℃ condition with coated and dried; Adopt cold press process to handle 4 minutes under the 600Mpa condition to the plane coating, the axle journal coating adopts the isostatic cool pressing method to handle 4 minutes under the 800Mpa condition; At last will be through colding pressing or the coating of isostatic cool pressing got final product in 1100 ℃ of sintering at vacuum condition or under argon gas or nitrogen protection in 1.5 hours.
Embodiment 6: at first with purity greater than 99.0%, particle size is 30 μ m～Ni, Cr of 200 μ m, Cr
2O
3, BaF
2, CaF
2, the Ag powder presses Ni:49%, Cr:14%, Cr
2O
3: 8%, BaF
2: 7%, CaF
2: 5%, surplus is that the material of Ag mixes by weight; It is 18: 1 in ratio of grinding media to material that said mixture is adopted high energy ball mill, rotating speed be under the condition of 1050rps with gasoline medium or protection of inert gas ball milling 12 hours, make the powder uniform mixing, and ball milling becomes the composite granule of granularity less than 10 μ m, wherein Cr
2O
3, BaF
2, CaF
2Grain-size less than 200nm; The polyvinyl alcohol that adds composite granule weight 2.5% in above-mentioned composite granule is mixed and made into slurry with water or alcohol by 9: 1 weight ratio after as binding agent again, be coated on the resistant to elevated temperatures friction contact plane of needs the slurry of making or journal surface, form coating, then under 100 ℃ condition with coated and dried; Adopt cold press process to handle 1 minute under the 900Mpa condition to the plane coating, the axle journal coating adopts the isostatic cool pressing method to handle 2 minutes under the 2000Mpa condition; At last will be through colding pressing or the coating of isostatic cool pressing got final product in 950 ℃ of sintering at vacuum condition or under argon gas or nitrogen protection in 2 hours.
Claims (7)
1, a kind of preparation method of high-temperature self-lubricating coating is characterized in that:
1) at first with purity greater than 99.0%, particle size is 30 μ m～Ni, Cr of 200 μ m, Cr
2O
3, BaF
2, CaF
2, the Ag powder presses Ni:40%～50%, Cr:5%～15%, Cr
2O
3: 5%～20%, BaF
2: 5%～10%, CaF
2: 1%～5%, surplus is that the material of Ag mixes by weight;
2) said mixture being adopted high energy ball mill is 10～20: 1 in ratio of grinding media to material; rotating speed is with gasoline medium or protection of inert gas ball milling 5 hours～20 hours under the condition of 800-1200rps; make the powder uniform mixing, and ball milling becomes the composite granule of granularity less than 10 μ m, wherein Cr
2O
3, BaF
2, CaF
2Grain-size less than 200nm;
3) polyvinyl alcohol that in above-mentioned composite granule, adds composite granule weight 0.5～3% as binding agent after again with water or alcohol by 2～10: 1 weight ratio is mixed and made into slurry, be coated on the resistant to elevated temperatures friction contact plane of needs the slurry of making or journal surface, form coating, then under 50～120 ℃ condition with coated and dried;
5) adopt cold press process to handle under 500～1000Mpa condition 0.5～5 minute to the plane coating, the axle journal coating adopts the isostatic cool pressing method to handle under 500～3000Mpa condition 0.5～5 minute;
6) at last will be through colding pressing or the coating of isostatic cool pressing got final product in 800 ℃～1200 ℃ sintering at vacuum condition or under argon gas or nitrogen protection in 1～3 hour.
2, the preparation method of high-temperature self-lubricating coating according to claim 1 is characterized in that: at first with purity greater than 99.0%, particle size is 30 μ m～Ni, Cr of 200 μ m, Cr
2O
3, BaF
2, CaF
2, the Ag powder presses Ni:40%, Cr:15%, Cr
2O
3: 20%, BaF
2: 10%, CaF
2: 5%, surplus is that the material of Ag mixes by weight; It is 10: 1 in ratio of grinding media to material that said mixture is adopted high energy ball mill, rotating speed be under the condition of 1200rps with gasoline medium or protection of inert gas ball milling 16 hours, make the powder uniform mixing, and ball milling becomes the composite granule of granularity less than 10 μ m, wherein Cr
2O
3, BaF
2, CaF
2Grain-size less than 200nm; The polyvinyl alcohol that adds composite granule weight 3% in above-mentioned composite granule is mixed and made into slurry with water or alcohol by 8: 1 weight ratio after as binding agent again, be coated on the resistant to elevated temperatures friction contact plane of needs the slurry of making or journal surface, form coating, then under 50 ℃ condition with coated and dried; Adopt cold press process to handle 2.5 minutes under the 700Mpa condition to the plane coating, the axle journal coating adopts the isostatic cool pressing method to handle 0.5 minute under the 3000Mpa condition; At last will be through colding pressing or the coating of isostatic cool pressing got final product in 800 ℃ of sintering at vacuum condition or under argon gas or nitrogen protection in 3 hours.
3, the preparation method of high-temperature self-lubricating coating according to claim 1 is characterized in that: at first with purity greater than 99.0%, particle size is 30 μ m～Ni, Cr of 200 μ m, Cr
2O
3, BaF
2, CaF
2, the Ag powder presses Ni:50%, Cr:5%, Cr
2O
3: 16%, BaF
2: 5%, CaF
2: 1%, surplus is that the material of Ag mixes by weight; It is 16: 1 in ratio of grinding media to material that said mixture is adopted high energy ball mill, rotating speed be under the condition of 900rps with gasoline medium or protection of inert gas ball milling 5 hours, make the powder uniform mixing, and ball milling becomes the composite granule of granularity less than 10 μ m, wherein Cr
2O
3, BaF
2, CaF
2Grain-size less than 200nm; The polyvinyl alcohol that adds composite granule weight 0.5% in above-mentioned composite granule is mixed and made into slurry with water or alcohol by 5: 1 weight ratio after as binding agent again, be coated on the resistant to elevated temperatures friction contact plane of needs the slurry of making or journal surface, form coating, then under 80 ℃ condition with coated and dried; Adopt cold press process to handle 5 minutes under the 500Mpa condition to the plane coating, the axle journal coating adopts the isostatic cool pressing method to handle 5 minutes under the 500Mpa condition; At last will be through colding pressing or the coating of isostatic cool pressing got final product in 1200 ℃ of sintering at vacuum condition or under argon gas or nitrogen protection in 1 hour.
4, the preparation method of high-temperature self-lubricating coating according to claim 1 is characterized in that: at first with purity greater than 99.0%, particle size is 30 μ m～Ni, Cr of 200 μ m, Cr
2O
3, BaF
2, CaF
2, the Ag powder presses Ni:45%, Cr:10%, Cr
2O
3: 5%, BaF
2: 8%, CaF
2: 4%, surplus is that the material of Ag mixes by weight; It is 12: 1 in ratio of grinding media to material that said mixture is adopted high energy ball mill, rotating speed be under the condition of 1100rps with gasoline medium or protection of inert gas ball milling 20 hours, make the powder uniform mixing, and ball milling becomes the composite granule of granularity less than 10 μ m, wherein Cr
2O
3, BaF
2, CaF
2Grain-size less than 200nm; The polyvinyl alcohol that adds composite granule weight 1.0% in above-mentioned composite granule is mixed and made into slurry with water or alcohol by 2: 1 weight ratio after as binding agent again, be coated on the resistant to elevated temperatures friction contact plane of needs the slurry of making or journal surface, form coating, then under 110 ℃ condition with coated and dried; Adopt cold press process to handle 0.5 minute under the 1000Mpa condition to the plane coating, the axle journal coating adopts the isostatic cool pressing method to handle 1 minute under the 2800Mpa condition; At last will be through colding pressing or the coating of isostatic cool pressing got final product in 1000 ℃ of sintering at vacuum condition or under argon gas or nitrogen protection in 2 hours.
5, the preparation method of high-temperature self-lubricating coating according to claim 1 is characterized in that: at first with purity greater than 99.0%, particle size is 30 μ m～Ni, Cr of 200 μ m, Cr
2O
3, BaF
2, CaF
2, the Ag powder presses Ni:48%, Cr:13%, Cr
2O
3: 10%, BaF
2: 9%, CaF
2: 3%, surplus is that the material of Ag mixes by weight; It is 20: 1 in ratio of grinding media to material that said mixture is adopted high energy ball mill, rotating speed be under the condition of 800rps with gasoline medium or protection of inert gas ball milling 8 hours, make the powder uniform mixing, and ball milling becomes the composite granule of granularity less than 10 μ m, wherein Cr
2O
3, BaF
2, CaF
2Grain-size less than 200nm; The polyvinyl alcohol that adds composite granule weight 1.6% in above-mentioned composite granule is mixed and made into slurry with water or alcohol by 10: 1 weight ratio after as binding agent again, be coated on the resistant to elevated temperatures friction contact plane of needs the slurry of making or journal surface, form coating, then under 90 ℃ condition with coated and dried; Adopt cold press process to handle 2 minutes under the 800Mpa condition to the plane coating, the axle journal coating adopts the isostatic cool pressing method to handle 3 minutes under the 1600Mpa condition; At last will be through colding pressing or the coating of isostatic cool pressing got final product in 900 ℃ of sintering at vacuum condition or under argon gas or nitrogen protection in 2.5 hours.
6, the preparation method of high-temperature self-lubricating coating according to claim 1 is characterized in that: at first with purity greater than 99.0%, particle size is 30 μ m～Ni, Cr of 200 μ m, Cr
2O
3, BaF
2, CaF
2, the Ag powder presses Ni:42%, Cr:9%, Cr
2O
3: 12%, BaF
2: 6%, CaF
2: 2%, surplus is that the material of Ag mixes by weight; It is 15: 1 in ratio of grinding media to material that said mixture is adopted high energy ball mill, rotating speed be under the condition of 1000rps with gasoline medium or protection of inert gas ball milling 10 hours, make the powder uniform mixing, and ball milling becomes the composite granule of granularity less than 10 μ m, wherein Cr
2O
3, BaF
2, CaF
2Grain-size less than 200nm; The polyvinyl alcohol that adds composite granule weight 2% in above-mentioned composite granule is mixed and made into slurry with water or alcohol by 4: 1 weight ratio after as binding agent again, be coated on the resistant to elevated temperatures friction contact plane of needs the slurry of making or journal surface, form coating, then under 120 ℃ condition with coated and dried; Adopt cold press process to handle 4 minutes under the 600Mpa condition to the plane coating, the axle journal coating adopts the isostatic cool pressing method to handle 4 minutes under the 800Mpa condition; At last will be through colding pressing or the coating of isostatic cool pressing got final product in 1100 ℃ of sintering at vacuum condition or under argon gas or nitrogen protection in 1.5 hours.
7, the preparation method of high-temperature self-lubricating coating according to claim 1 is characterized in that: at first with purity greater than 99.0%, particle size is 30 μ m～Ni, Cr of 200 μ m, Cr
2O
3, BaF
2, CaF
2, the Ag powder presses Ni:49%, Cr:14%, Cr
2O
3: 8%, BaF
2: 7%, CaF
2: 5%, surplus is that the material of Ag mixes by weight; It is 18: 1 in ratio of grinding media to material that said mixture is adopted high energy ball mill, rotating speed be under the condition of 1050rps with gasoline medium or protection of inert gas ball milling 12 hours, make the powder uniform mixing, and ball milling becomes the composite granule of granularity less than 10 μ m, wherein Cr
2O
3, BaF
2, CaF
2Grain-size less than 200nm; The polyvinyl alcohol that adds composite granule weight 2.5% in above-mentioned composite granule is mixed and made into slurry with water or alcohol by 9: 1 weight ratio after as binding agent again, be coated on the resistant to elevated temperatures friction contact plane of needs the slurry of making or journal surface, form coating, then under 100 ℃ condition with coated and dried; Adopt cold press process to handle 1 minute under the 900Mpa condition to the plane coating, the axle journal coating adopts the isostatic cool pressing method to handle 2 minutes under the 2000Mpa condition; At last will be through colding pressing or the coating of isostatic cool pressing got final product in 950 ℃ of sintering at vacuum condition or under argon gas or nitrogen protection in 2 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510042915XA CN1328336C (en) | 2005-07-11 | 2005-07-11 | Method for preparing self-lubricating coat in use for high temperature |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510042915XA CN1328336C (en) | 2005-07-11 | 2005-07-11 | Method for preparing self-lubricating coat in use for high temperature |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1727420A true CN1727420A (en) | 2006-02-01 |
| CN1328336C CN1328336C (en) | 2007-07-25 |
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ID=35926949
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|---|---|---|---|
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100560253C (en) * | 2007-11-21 | 2009-11-18 | 北京矿冶研究总院 | Preparation method of silver-doped nickel-chromium carbide-based high-temperature self-lubricating coating material |
| CN102041466A (en) * | 2010-07-30 | 2011-05-04 | 中国科学院金属研究所 | High-performance high temperature solid self-lubricating coating and preparation method thereof |
| CN101736279B (en) * | 2008-11-05 | 2012-07-18 | 沈阳黎明航空发动机(集团)有限责任公司 | Hypersonic flame spraying process for self-lubricating wear-resistant coating |
| CN106917059A (en) * | 2015-12-28 | 2017-07-04 | 王海斗 | A kind of thermal spraying composite granule and its production and use |
| CN108526366A (en) * | 2018-04-04 | 2018-09-14 | 武汉理工大学 | Self-lubricating hot forged mould and preparation method thereof based on Sialon ceramics |
| CN109881141A (en) * | 2019-03-12 | 2019-06-14 | 唐山学院 | NiCoCrAlY/Cr2O3-Ag-CaF2.BaF2High temperature solid self-lubricants wear-resistant coating |
| CN111139475A (en) * | 2019-07-04 | 2020-05-12 | 盐城百圣机械有限公司 | Preparation of self-lubricating coating suitable for middle-low temperature air bearing journal |
| CN112546734A (en) * | 2020-12-08 | 2021-03-26 | 南京工业大学 | Method for manufacturing filter material |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS63104214A (en) * | 1986-10-21 | 1988-05-09 | Nec Corp | Magnetic memory body and its production |
| CN1088098C (en) * | 1999-09-29 | 2002-07-24 | 中国科学院兰州化学物理研究所 | High-temperature antioxidant lubricating coating |
| CN1240814C (en) * | 2004-09-13 | 2006-02-08 | 西安交通大学 | Paillon air bearing high-temperature resistant nanometer composite lubricating coating and preparation thereof |
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2005
- 2005-07-11 CN CNB200510042915XA patent/CN1328336C/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100560253C (en) * | 2007-11-21 | 2009-11-18 | 北京矿冶研究总院 | Preparation method of silver-doped nickel-chromium carbide-based high-temperature self-lubricating coating material |
| CN101736279B (en) * | 2008-11-05 | 2012-07-18 | 沈阳黎明航空发动机(集团)有限责任公司 | Hypersonic flame spraying process for self-lubricating wear-resistant coating |
| CN102041466A (en) * | 2010-07-30 | 2011-05-04 | 中国科学院金属研究所 | High-performance high temperature solid self-lubricating coating and preparation method thereof |
| CN102041466B (en) * | 2010-07-30 | 2012-11-07 | 中国科学院金属研究所 | Preparation method of high-performance high temperature solid self-lubricating coating |
| CN106917059A (en) * | 2015-12-28 | 2017-07-04 | 王海斗 | A kind of thermal spraying composite granule and its production and use |
| CN106917059B (en) * | 2015-12-28 | 2018-10-16 | 王海斗 | A kind of thermal spraying composite granule and its preparation method and application |
| CN108526366A (en) * | 2018-04-04 | 2018-09-14 | 武汉理工大学 | Self-lubricating hot forged mould and preparation method thereof based on Sialon ceramics |
| CN109881141A (en) * | 2019-03-12 | 2019-06-14 | 唐山学院 | NiCoCrAlY/Cr2O3-Ag-CaF2.BaF2High temperature solid self-lubricants wear-resistant coating |
| CN109881141B (en) * | 2019-03-12 | 2021-06-08 | 唐山学院 | NiCoCrAlY/Cr2O3-Ag-CaF2.BaF2High-temperature solid self-lubricating wear-resistant coating |
| CN111139475A (en) * | 2019-07-04 | 2020-05-12 | 盐城百圣机械有限公司 | Preparation of self-lubricating coating suitable for middle-low temperature air bearing journal |
| CN112546734A (en) * | 2020-12-08 | 2021-03-26 | 南京工业大学 | Method for manufacturing filter material |
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