CN1032162C - Self-lubricating graphite spraying material for cermet - Google Patents
Self-lubricating graphite spraying material for cermet Download PDFInfo
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- CN1032162C CN1032162C CN 92108461 CN92108461A CN1032162C CN 1032162 C CN1032162 C CN 1032162C CN 92108461 CN92108461 CN 92108461 CN 92108461 A CN92108461 A CN 92108461A CN 1032162 C CN1032162 C CN 1032162C
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- component
- self
- graphite
- cermet
- lubricating
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- Coating By Spraying Or Casting (AREA)
Abstract
The present invention relates to a self-lubricating graphite spraying material for cermet, which is composed of two components, wherein a first component is composed of metal Ni coated on graphite as a solid lubricant, and a second component is composed of Al2 O3 and one or more than two kinds of oxide. The spraying material of the present invention is sprayed on alloy materials by a plasma spraying technique, and the present invention as a self-lubricating component not only has the advantages of high abrasive resistance and favorable lubricating property, but also can prevent the same metal from engagement so as to obtain the function of self lubrication. The present invention can be applied to a water medium having high temperature and high pressure, and is suitable for radioactive occasions.
Description
The invention belongs to the ceramet graphite product, can be applicable in the High Temperature High Pressure aqueous medium as selflubricating parts sprayed on material.
Parts such as the oil-less self-lubricating bearing that turns round under high temperature, high speed loading condition, guide pad, screw rod, senior seal ring and material all require higher intensity and good lubricity, especially under some rugged environment, as using in high temperature, high pressure and the aqueous medium at the big fretting wear parts of load, the material of its wear resistance and self lubricity is more difficult to be found.
In known technology, once there was the article introduction to adopt the method for metal cladding graphite to produce the selflubricating parts, but do not obtain satisfactory result, even nickel cladding graphite utilizes the ordinary sinter moulding process also to can not get effect preferably.The clear 58-17819 of Japan Patent has invented a kind of solid self-lubricating composite material.Chinese patent 85107628 has improved its invention on the Japan Patent basis, Chinese patent is made of two components, and first component is by metal Ni, Co cladding solid lubricant graphite, MoS
2, WS
2, WSe
2In one or more cladding powder constitute, second component is made of carbide, nitride and the Ni of fourth, fifth, six pair of family's metal, one or more metal among Co, the Mo, the weight percentage of first component and second component is 10: 90～30: 70, the technology that both adopt, the former is a heat pressure forming process, and the latter is a spark sintering process.
The object of the present invention is to provide the self-lubricating graphite spraying material for cermet of a kind of high wear resistance, greasy property excellence, can be applicable under the mal-conditions such as High Temperature High Pressure aqueous medium.
Self-lubricating graphite spraying material for cermet of the present invention is made up of oxide, solid lubricant and metal, is made of two components, and first component is made of metal Ni cladding solid lubricant graphite, and second component is by Al
2O
3Constitute with one or more oxides, the weight percentage of first component and second component is 70: 30～55: 45, and raw materials used granularity is-160 orders+5 micron.
The designed self-lubricating graphite spraying material for cermet of the present invention is by the high hard phase of intensity, in conjunction with firm bonding mutually and equally distributed lubricated formation mutually, various characteristics is blended in one, becomes the selflubricating sprayed on material of function admirable.As Al with certain purity and granularity
2O
3Pottery and one or more oxides are as the matrix composition; Add Ni cladding graphite in addition.According to surperficial sprayed on material performance demands and service condition, in a certain amount of scope, take the circumstances into consideration to change the proportioning of composition.When requiring surperficial sprayed on material that higher wear resistance is arranged, can suitably increase the amount of matrix; When requiring to improve lubricity, can increase the amount of oiling agent; And can increase the content of Ni when require improving toughness.Promptly by regulating Al
2O
3Proportioning with the mixed body of oxide and metal Ni and graphite can reach the requirement of desired surperficial sprayed on material.
Self-lubricating graphite spraying material for cermet of the present invention is made of two components, and in the metal cladding oiling agent of first component, the weight ratio of metal Ni and oiling agent graphite is 75: 25～60: 40, Al in second component
2O
3With the ratio of one or more oxides be 80: 20～97: 3.
Self-lubricating graphite spraying material for cermet of the present invention sprays on alloy material and stainless steel component through plasma spraying technology, not only has higher wear resistance, and excellent lubricity can also prevent metal interlock of the same race, thereby play self-lubricating function.Can be applicable to more be applicable to the radioactivity occasion in the High Temperature High Pressure aqueous medium.
Embodiment:
Adopt self-lubricating graphite spraying material for cermet of the present invention, be coated on 30mm * 8mm * 15mm stainless steel slide block through plasma spray, its cladding material proportioning (weight ratio), the first component 70%Ni wraps 30% native graphite, the second component 87%Al
2O
3, 13%TiO
2, first component is 60: 40 with the ratio of second component.Batching is mixed with several highi degree of accuracy dividers, the spraying of 50kW arc plasma spraying equipment is adopted in spraying, product is used under the aqueous medium working condition, carries out friction-wear test, oiling agent distilled water, pressure 5kg/mm, S=3016m/h, through the 15000m wearing and tearing, its wear extent is about 20mg, between the friction factor 0.7～0.9, the coating bending strength is 43.2MPa.
Claims (3)
1. a self-lubricating graphite spraying material for cermet of being made up of oxide, solid lubricant and metal is characterized in that being made of two components, and first component is made of nickel (Ni) cladding solid lubricant graphite, and second component is by aluminium sesquioxide (Al
2O
3) and titanium oxide (TiO
2) constitute, the weight percentage of first component and second component is 70: 30～55: 45.
2. self-lubricating graphite spraying material for cermet according to claim 1 is characterized in that the weight ratio of metal Ni and oiling agent graphite is 75: 25～60: 40, Al in second component in the metal cladding oiling agent of first component
2O
3With titanium oxide (TiO
2) ratio be 80: 20～97: 3.
3. self-lubricating graphite spraying material for cermet according to claim 1 and 2 is characterized in that raw materials used granularity is-160 orders+5 micron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92108461 CN1032162C (en) | 1992-06-18 | 1992-06-18 | Self-lubricating graphite spraying material for cermet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92108461 CN1032162C (en) | 1992-06-18 | 1992-06-18 | Self-lubricating graphite spraying material for cermet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1080378A CN1080378A (en) | 1994-01-05 |
| CN1032162C true CN1032162C (en) | 1996-06-26 |
Family
ID=4943562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92108461 Expired - Fee Related CN1032162C (en) | 1992-06-18 | 1992-06-18 | Self-lubricating graphite spraying material for cermet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1032162C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2484285C (en) * | 2002-09-24 | 2012-10-02 | Ishikawajima-Harima Heavy Industries Co., Ltd. | Method for coating sliding surface of high temperature member, and high-temperature member and electrode for electric-discharge surface treatment |
| CN103060614B (en) * | 2012-12-08 | 2015-07-01 | 沈阳飞机工业（集团）有限公司 | Nickel-coated graphite self-lubricating composite material and application thereof |
| CN106148741A (en) * | 2016-08-15 | 2016-11-23 | 亚太水处理(天长)有限公司 | A kind of preparation method of the aerator bearing outside self-lubricating abrasion-proof material that floats |
| CN107132180B (en) * | 2017-04-07 | 2020-06-09 | 河南科技大学 | Friction performance detection test device for joint bearing gasket and installation method thereof |
| CN109797358A (en) * | 2019-03-11 | 2019-05-24 | 河北工业大学 | A kind of preparation method of ceramic base self-lubricating composite coating |
| CN110158007B (en) * | 2019-03-26 | 2021-11-30 | 中国船舶重工集团公司第七二五研究所 | Self-lubricating wear-resistant composite coating and preparation method and application thereof |
-
1992
- 1992-06-18 CN CN 92108461 patent/CN1032162C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1080378A (en) | 1994-01-05 |
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| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |