CN1036796C - High-temp self-lubricating metal-ceramic material - Google Patents
High-temp self-lubricating metal-ceramic material Download PDFInfo
- Publication number
- CN1036796C CN1036796C CN92105473A CN92105473A CN1036796C CN 1036796 C CN1036796 C CN 1036796C CN 92105473 A CN92105473 A CN 92105473A CN 92105473 A CN92105473 A CN 92105473A CN 1036796 C CN1036796 C CN 1036796C
- Authority
- CN
- China
- Prior art keywords
- temperature
- ceramic material
- self
- lubricating metal
- pbo
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Powder Metallurgy (AREA)
- Ceramic Products (AREA)
Abstract
The present invention discloses high-temperature self-lubricating metal ceramic material which is prepared with a fast hot pressing method of intermediate frequency induction heating. WC and Ni are used as main components, Mo is a solid solution strengthening phase, and PbO is a high-temperature lubricating phase. The present invention has excellent tribological properties and good mechanical performance at the high temperature from 400 DEG C to 1100 DEG C.
Description
The present invention has narrated a kind of self-lubricating material that at high temperature uses, and belonging to nickel-tungsten carbide is sintering metal.
Wimet has good high-temperature mechanical property, very high wear resistance and toughness preferably.It is made up of metallographic phase (as Ni, Co, Cr, Mo etc.) and ceramic phase (TiC, WC, SiC etc.), but the sliding seal of Shi Yonging at high temperature, as the sliding seal between torpedo distributing valve seat and valve body and valve body and the spline sleeve, the guiding valve of thermonuclear power machinery etc., except that the material that requires to make these parts has the excellent high-temperature mechanical property, have good low friction, abrasion resistance properties again
In general, the material that uses under 600 ℃ of high temperature has and soak silver-colored graphite, but its physical strength is low, poor toughness, and at 1000 ℃ of high temperature, at a high speed, when using under the high-load condition, cracking phenomena (the development recent developments of sealing material often occur, P.F.Brown, the U.S., 1988).It is high-temp self-lubricating metal-ceramic material that Chinese patent 89106018.9 discloses a kind of WC-Ni-PbO, though such material has good friction and wear behavior under 600 ℃ of high temperature, its high-temperature machinery intensity is lower.
The objective of the invention is to develop a kind of can 400 ℃～1000 ℃, at a high speed, the self-lubricating metal-ceramic material that uses under the high-load condition, the tribological property of the existing excellence of this material has the good high-temperature physical strength again.
Content of the present invention:
On prescription, the present invention selects the bonding phase of nickel as high-temp self-lubricating metal-ceramic material for use, the ceramic phase wolfram varbide is wear-resisting phase, and both constitute the main composition of this material and add an amount of molybdenum and plumbous oxide, dependence nickel-tungsten carbide guarantee the mechanical property of this material.Molybdenum is the solution strengthening phase, improves high-temperature machinery intensity.Plumbous oxide guarantees high temperature lubricating, thereby realizes the purpose of high-temperature self-lubrication.Simultaneously, plumbous oxide also has the easy-sintering of fluxing, makes the effect of material densification.
On technology, the present invention adopts the preparation of Frequency Induction Heating Rapid Thermal platen press.The high-temp self-lubricating metal-ceramic material of prepared has densification, equal even isotropic characteristics thus.Concrete prescription of the present invention (weight percentage) is: Ni30～60%, and WC30～60%, Mo3～10%, surplus is PbO.
The granularity requirements of each component of the present invention is: Ni-75 μ m WC-15 μ m, Mo-75 μ m, PbO-38.5 μ m.
Screening formulation of the present invention (weight percentage) is: Ni43～48%, and WC43～48%, Mo4～7% surplus is PbO.
Concrete preparation process of the present invention is: after Ni, WC, Mo and PbO powder were mixed by a certain percentage, the graphite jig of packing into was colded pressing.Then with the graphite jig dislocation in Medium frequency induction coil central authorities, heating temperature rise to 1200～1350 ℃, during pressure 15MPa～25MPa, heat-insulation pressure keeping 5-20 minute.Heat-insulation pressure keeping cools to the room temperature demoulding after finishing naturally, can make the blank of this material.The typical physical of the high-temp self-lubricating metal-ceramic material that makes by above-mentioned prescription and preparation technology, machinery and friction and wear behavior are listed in table 1 and table 2.
Table 1. high-temp self-lubricating metal-ceramic material physicals and shock strength
| Density (kg/M 3×10 3) | Brinell hardness (HB) | Linear expansivity (/ ℃) (room temperature to 800 ℃) | Shock strength N-M/M 2×10 4 |
| 11.12 | 306 | 8.1×10 -6 | 50 |
The machinery of table 2. high-temp self-lubricating metal-ceramic material and friction wear performance
| Temperature (℃) | Frictional coefficient | Loss rate (M 3/NM) | Ultimate compression strength (* 10 8Pa) | Crushing strength (* 10 8Pa) |
| Room temperature | 0.37 | 2.60×10 -13 | 14.3 | 8.1 |
| 200 | 0.35 | 2.40×10 -13 | 10.0 | 4.4 |
| 400 | 0.19 | 1.39×10 -14 | 8.2 | 3.7 |
| 600 | 0.15 | 4.30×10 -15 | 6.9 | 3.4 |
| 700 | 0.13 | 1.14×10 -14 |
Can find out by table 1 and table 2, this material has excellent physics, particularly more than 400 ℃ the time, this material still has the favorable mechanical performance can be used down at 400 ℃～1100 ℃ with the utility member that excellent friction and wear behavior is made according to prescription of the present invention and technological process for machinery and friction and wear behavior.
Example 1: the concrete prescription according to table 3 is listed, adopt Frequency Induction Heating, the preparation of Rapid Thermal platen press specifically is with the Ni powder, the WC powder, the Mo powder, PbO powder mixing in the graphite jig of packing into, is colded pressing.Be placed on sintering in the Medium Frequency Induction Heating Furnace then, 1250 ℃～1350 ℃ of temperature, pressure 18MPa-22MPa is incubated 10-20 minute.Insulation is vulcanized pressure after finishing, and cooling can make the parts blank naturally.Performance such as table 1 and the table 2 of material in room temperature～800 ℃.
Use the result: can be with the fish seven torpedo engine distribution valve bushes that this material is made 1100 ℃ of temperature, use three times under the condition of (1350 ℃ of fuel gas temperatures) PV value 33.64MPa.M/S., satisfy disposable requirement.Disposable work reliability is 100%.
Table 3 specifically fill a prescription (weight percentage)
| Form | WC | Ni | Mo | PbO |
| 1 | 47 | 46 | 4 | 3 |
| 2 | 48 | 45 | 3 | 4 |
| 3 | 45 | 43 | 9 | 3 |
| 4 | 43 | 43 | 5 | 9 |
| 5 | 43 | 48 | 8 | 1 |
| 6 | 47 | 45 | 6 | 2 |
| 7 | 48 | 46 | 5 | 1 |
| 8 | 45 | 44 | 5 | 6 |
Claims (2)
1. one kind can be used the WC-Ni-Mo-PbO self-lubricating metal-ceramic material under 400 ℃～1100 ℃ high temperature, it is characterized in that each composition weight percentage composition of material is Ni30～60%, WC30-60%, and Mo3-10%, surplus is PbO.
2. ask the high-temp self-lubricating metal-ceramic material of stating as claim 1, the weight percentage scope that it is characterized in that each component of material is Ni43～48%, WC43～48%, and Mo4-7%, surplus is PbO.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN92105473A CN1036796C (en) | 1992-07-17 | 1992-07-17 | High-temp self-lubricating metal-ceramic material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN92105473A CN1036796C (en) | 1992-07-17 | 1992-07-17 | High-temp self-lubricating metal-ceramic material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1083123A CN1083123A (en) | 1994-03-02 |
| CN1036796C true CN1036796C (en) | 1997-12-24 |
Family
ID=4941403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN92105473A Expired - Fee Related CN1036796C (en) | 1992-07-17 | 1992-07-17 | High-temp self-lubricating metal-ceramic material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1036796C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1059416C (en) * | 1995-12-28 | 2000-12-13 | 中国科学院兰州化学物理研究所 | Composite self-lubricating zircite-graphite material |
| CN107034386B (en) * | 2017-04-14 | 2018-11-27 | 中国科学院上海应用物理研究所 | A kind of anti-fused salt corrosion high-temperature composite material and molten salt reactor core structure part |
| CN109136822B (en) * | 2018-09-11 | 2020-03-17 | 西安交通大学 | Preparation method of seawater corrosion and abrasion resistant composite coating |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1051592A (en) * | 1989-11-09 | 1991-05-22 | 中国科学院兰州化学物理研究所 | Self-lubricating metal-ceramic |
-
1992
- 1992-07-17 CN CN92105473A patent/CN1036796C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1051592A (en) * | 1989-11-09 | 1991-05-22 | 中国科学院兰州化学物理研究所 | Self-lubricating metal-ceramic |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1083123A (en) | 1994-03-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107058808B (en) | A kind of aluminium alloy base solid lubricating composite material and preparation method thereof | |
| JP2005325436A (en) | Hard-particle dispersion type iron-based sintered alloy | |
| CN109402435A (en) | A kind of wide temperature range self-lubrication alloy of nickel aluminium base and preparation method thereof | |
| CN112276076B (en) | Preparation method of wide-temperature-range high-entropy alloy-based solid lubricating composite material | |
| GB2073247A (en) | Anti-wear sintered alloy | |
| CN101245420A (en) | Sintered carbon, copper complex seeping method for producing high-strength powder metallurgy material | |
| CN1036796C (en) | High-temp self-lubricating metal-ceramic material | |
| EP1347067A1 (en) | Iron-based sintered alloy for use as valve seat and its production method | |
| CN1088114C (en) | Tin-bronze base self-lubricating composite material | |
| CN110629097A (en) | Novel titanium-aluminum-based self-lubricating material and preparation method thereof | |
| CN108707784B (en) | Magnesium borate reinforced nickel-aluminum-based self-lubricating composite material and preparation method thereof | |
| JP2020037732A (en) | Sintered steel alloy for wear resistance at high temperatures and fabrication method of valve-seat using the same | |
| CN111575599B (en) | Precipitation strengthening type high-temperature steel bonded hard alloy and preparation method thereof | |
| CN103627921B (en) | A kind of interpolation WS 2and MoS 2copper radical self-lubricating matrix material and preparation method thereof | |
| CN111575605A (en) | Stainless steel-based valve seat ring material for CNG engine and preparation method thereof | |
| CN113681009B (en) | Friction oxidation regulation surface generation self-supplement lubricating phase composite material and preparation method thereof | |
| CN110318012A (en) | A kind of self-lubricating nickel-based composite and preparation method thereof | |
| CN113430421B (en) | High-strength nickel-niobium-based wide-temperature-range self-lubricating alloy | |
| CN109022924A (en) | High strength anti-corrosion solid lubricant under a kind of briny environment | |
| CN114908271B (en) | High-temperature-resistant copper alloy-based solid lubricating composite material and preparation method thereof | |
| CN1031258A (en) | Moulding stock of molybdenum based metall-ceramic used for hot rolling | |
| CN111961900A (en) | Novel titanium-aluminum-based composite material and preparation method thereof | |
| CN113337767A (en) | Preparation method of wear-resistant high-strength powder metallurgy valve seat | |
| CN113234987B (en) | WC/Fe composite material and preparation method thereof | |
| KR101199433B1 (en) | Sintered alloy for valve seat having wear resistance and self-lubricating property |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C53 | Correction of patent for invention or patent application | ||
| CB04 | Change of attorney information |
Agent after: Fang Xiaojia Agent before: Li Shijun |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: AGENT; FROM: LI SHIJUN TO: FANG XIAOJIA |
|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |