CN104496548B - Metal ceramic surface treating method - Google Patents
Metal ceramic surface treating method Download PDFInfo
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- CN104496548B CN104496548B CN201410824967.1A CN201410824967A CN104496548B CN 104496548 B CN104496548 B CN 104496548B CN 201410824967 A CN201410824967 A CN 201410824967A CN 104496548 B CN104496548 B CN 104496548B
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- carburizing
- ceramic
- vacuum
- drying oven
- carbon source
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- 239000000919 ceramic Substances 0.000 title claims abstract description 82
- 239000002184 metal Substances 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title abstract description 23
- 238000005255 carburizing Methods 0.000 claims abstract description 50
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 29
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 29
- 238000005245 sintering Methods 0.000 claims abstract description 12
- 238000001291 vacuum drying Methods 0.000 claims description 23
- 238000001035 drying Methods 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 11
- 238000009413 insulation Methods 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 238000003672 processing method Methods 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 6
- 238000004381 surface treatment Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 5
- 239000011347 resin Substances 0.000 claims description 5
- 229920005989 resin Polymers 0.000 claims description 5
- 239000000243 solution Substances 0.000 claims description 5
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 4
- 229920000742 Cotton Polymers 0.000 claims description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 4
- 239000005864 Sulphur Substances 0.000 claims description 4
- 239000004917 carbon fiber Substances 0.000 claims description 4
- 238000007654 immersion Methods 0.000 claims description 4
- 238000001727 in vivo Methods 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 9
- 239000007789 gas Substances 0.000 description 22
- 239000011195 cermet Substances 0.000 description 7
- 229910010293 ceramic material Inorganic materials 0.000 description 4
- 206010013786 Dry skin Diseases 0.000 description 3
- 239000004567 concrete Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 229910052593 corundum Inorganic materials 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 229910052573 porcelain Inorganic materials 0.000 description 2
- 229910001845 yogo sapphire Inorganic materials 0.000 description 2
- 229940123973 Oxygen scavenger Drugs 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000003708 ampul Substances 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 235000006708 antioxidants Nutrition 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006392 deoxygenation reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- -1 siloxanes Chemical class 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 230000010148 water-pollination Effects 0.000 description 1
Landscapes
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
Abstract
The invention discloses a metal ceramic surface treating method. The metal ceramic surface treating method is characterized by comprising the following steps: putting a ceramic green body into a vacuum container which is filled up with a carbon source gas, performing carburizing treatment at a temperature higher than or equal to the ceramic sintering temperature under vacuum degree of 9＜-2＞-10＜-2＞MPa, and taking out a ceramic product after preserving the heat for 2-4 hours, thereby ending the carburizing treatment. The metal ceramic surface treating method has the advantage that a carbon source is infiltrated into the ceramic green body under a vacuum state that the temperature of the high-purity carbon source is higher than the ceramic sintering temperature, the carburizing effect is superior to a common carburizing effect, and the operation is simple and convenient.
Description
Technical field
The present invention relates to a kind of method of cermet performance improvement, and in particular to a kind of to be improved using carburizing tech
The method of cermet some aspect performances, category ceramic technology field is especially suitable for the performance of carbide-base ceramics product
Improve.
Background technology：
Cermet is by the structural material of ceramic hard phase and metal or alloy bonding phase composition.Due to cermet both
The characteristics such as high intensity, high rigidity, wear-resistant, high temperature resistant, the anti-oxidant and chemical stability of ceramics are maintained, and with preferable
Metal toughness and plasticity, so now more and more where applied metal ceramics.But cermet finds in use,
The performance on surface is not still fine, and especially metal ceramic surface due to lacking metallic binding phase is easily caused the wear-resisting of surface
Hydraulic performance decline, so as to affect service life.
Recently also there is the method for much proposing to be modified metal ceramic surface process, but be all sufficiently complex work
Process, though metal ceramic surface performance can be changed, causes cost of manufacture to be substantially increased, therefore necessary this is added
To improve.
Directly report with identical technology of the present invention by the way that patent retrieval is no, discovery has similar patent literature,
Related to the present invention mainly has following：
1st, Patent No. CN03106543.0, the invention of entitled " non-acieration carbonized ceramic material manufacturing method " is special
Profit, which discloses a kind of by producing composite bodies, such as new side of ZrB2-ZrC-Zr complexs with carburizing tech
Method.Additionally, the present invention relates to the new product for preparing in this way.By the way that the residual metal is exposed in a carburizing atmosphere, newly
Method improves the remaining mother metal remained in complex
2nd, Patent No. CN88108773.4, it is entitled " using carburization process improve ceramic composite bodies method and
The patent of invention of product ", which discloses a kind of non-acieration carbonized ceramic material manufacturing method, proposes with potter's clay, porcelain
Soil or other lithology materials are uniformly added into 0.5~80% non-vaporized of base-material total amount after crushed as the base-material of carbonized ceramic
Volatility carbon containing organic compound or industrial hydrophily carbon dust, then crushing and water-adding make blank, by the blank being completely dried；
It is fitted into bottom to be contained with the body of oxygen scavenger and blank support, is provided with the middle of body bottom into outlet aperture, Kong Shangwei deoxygenations
Agent is covered, then body is put into kiln-firing
3rd, Patent No. CN94119863.4, the patent of invention of entitled " method for carburizing of ceramic sliding material ", this is special
Profit discloses a kind of method for carburizing of ceramic material.Ceramics (Al2O3, ZrO2 or oxide series) are immersed into HF solution, so as to
It is carried out to be deep into 0.01 μm~100 μm of surface treatment.Quartz ampoule will be put into through the ceramic material of above-mentioned surface treatment
In, then proceed in carburizer.It is then injected into siloxanes and ligroin, heating and cooling.Then resin treatment, washing are carried out and is done
It is dry, obtain the carburizing sliding material that carbon-impregnated penetrates into 0.01 μm~100 μm.So, carburizing is carried out under plain mode, can make slip
The performance with the coefficient of friction for improving and other improvement such as material Al2O3.
Although above-mentioned these patents are proposed the certain methods of ceramic carburizing, but by carefully analyzing, discovery is still deposited
In some shortcomings；Effect and uniformity mainly in carburizing is not very good, and carburizing process is more complicated, especially
How Carburization Treatment is carried out in metal ceramic surface, improve surface strength and remain a need for further being improved.
The content of the invention
Present invention aims to some problems existing for present cermet carburizing, propose a kind of carburizing effect
Good, and ceramics method for carburizing easily to operate, the method can further improve carburizing effect, improve the simplicity of carburizing.
The technical scheme that goal of the invention of the invention is proposed is：A kind of metal ceramic surface processing method, will make pottery
Porcelain base substrate is placed in the vacuum tank full of carbon-source gas, more than or equal to ceramic sintering temperature, vacuum 9-2-10-2MPa
Under conditions of, Carburization Treatment is carried out, ceramic is taken out after insulation 2-4 hours, carburizing is finished.
Further, described carbon source is 99.999% high-purity carbon source；It is that first sulphur gas and carbon fiber cotton are blended in one
Made by rising；
Further, described carbon-source gas concentration accounts for the 40-60% of the volume of gas for carbon source；
Further, described is 1400-1600 DEG C more than or equal to ceramic sintering temperature；
Further, described carbon-source gas are flowing in vacuum tank, and by the air inlet of circulating line one side, one
Side outlet, in vacuum drying oven internal circulation flow.
Concrete steps according to ceramics method for carburizing of the invention are described as follows：
The first step（Surface treatment step）
By 30~120 minutes in ceramics immersion 1~55%HF solution, purified treatment is carried out to ceramic surface and in vivo so that
The internal space of ceramics is clean.Then, wash ceramic surface with water, then be placed in drying oven in 100~300 DEG C of heated dryings 4 of temperature
Hour, make carburizing ceramic body.
Second step（Carburization step）
Carburizing ceramic body is placed in carburizing vacuum drying oven, after containing vacuum stove, is vacuumized, reach vacuum
To 9-2-10-2MPa；And the continuous injection high-purity carbon source into vacuum drying oven so that the carbon source content in vacuum drying oven reaches 40-60%.
Then to vacuum drying oven by 5~10 DEG C/min of speed heating, when temperature reaches 1400-1600 DEG C, 2-4 hours are incubated, and are being protected
Flowing is circulated to the gas in stove by circulating pump during temperature, described carbon-source gas are flowing in vacuum tank
, and by the air inlet of circulating line one side, one side outlet, in vacuum drying oven internal circulation flow.After insulation terminates, take from carburizer
Go out, with fan or natural cooling.
3rd step（The step of forming sealer）
The carburizing ceramics of the surface treated in second step are surface-treated again with resin, are washed with water.Then exist
Heated drying at 200 DEG C of temperature, so as to obtain the carburized material that carburizing is to 0.01 μm to 100 μm.
It is an advantage of the current invention that：By highly purified carbon source under the vacuum state higher than ceramic sintering temperature, by carbon
Source is penetrated in ceramic body, and carburizing effect is better than general carburizing effect, and easy to operate, for improvement cermet
Especially the performance of carbide-base ceramics product is highly beneficial.
Specific embodiment
Below in conjunction with embodiment, the present invention will be further described.
Embodiment one
A kind of metal ceramic surface processing method, ceramic body is placed in the vacuum tank full of carbon-source gas, big
In or equal to ceramic sintering temperature, vacuum 9-2-10-2Under conditions of MPa, Carburization Treatment is carried out, taken out after insulation 2-4 hours
Ceramic, carburizing is finished.
Further, described carbon source is 99.999% high-purity carbon source；Can be first sulphur gas and carbon fiber cotton mixing
Formed together；
Further, described carbon-source gas concentration accounts for the 40-60% of the volume of gas for carbon source；
Further, described is 1400-1600 DEG C more than or equal to ceramic sintering temperature；
Further, described carbon-source gas are close flow in vacuum tank, and by circulating line while entering
Gas, one side outlet, in vacuum drying oven internal circulation flow.
Concrete steps according to ceramics method for carburizing of the invention are described as follows：
The first step（Surface treatment step）
By 30~120 minutes in ceramics immersion 1~55%HF solution, purified treatment is carried out to ceramic surface and in vivo so that
The internal space of ceramics is clean.Then, wash ceramic surface with water, then be placed in drying oven in 100~300 DEG C of heated dryings 4 of temperature
Hour, make carburizing ceramic body.
Second step（Carburization step）
Carburizing ceramic body is placed in carburizing vacuum drying oven, after containing vacuum stove, is vacuumized, reach vacuum
To 9-2-10-2MPa；And the continuous injection high-purity carbon source into vacuum drying oven so that the carbon source content in vacuum drying oven reaches 40-60%.
Then to vacuum drying oven by 5~10 DEG C/min of speed heating, when temperature reaches 1400-1600 DEG C, 2-4 hours are incubated, and are being protected
Flowing is circulated to the gas in stove by circulating pump during temperature, described carbon-source gas are flowing in vacuum tank
, and by the air inlet of circulating line one side, one side outlet, in vacuum drying oven internal circulation flow.After insulation terminates, take from carburizer
Go out, with fan or natural cooling.
3rd step（The step of forming sealer）
The carburizing ceramics of the surface treated in second step are surface-treated again with resin, are washed with water.Then exist
Heated drying at 200 DEG C of temperature, so as to obtain the carburized material that carburizing is to 0.01 μm to 100 μm.
The blank sintering temperature increasing schedule of the present embodiment is：
Room temperature -1400-1600 DEG C, 220 DEG C/h of heating rate
1400-1600 DEG C of insulation 2-4 hour.
Embodiment two
A kind of metal ceramic surface processing method, ceramic body is placed in the vacuum tank full of carbon-source gas, big
In or equal to ceramic sintering temperature, vacuum 9-2-9.5-2Under conditions of MPa, Carburization Treatment is carried out, insulation takes out pottery after 3 hours
Ceramic products, carburizing is finished.
Further, described carbon source is 99.999% high-purity carbon source；Can be first sulphur gas and carbon fiber cotton mixing
Formed together；
Further, described carbon-source gas concentration accounts for the 50-60% of the volume of gas for carbon source；
Further, described is 1500-1600 DEG C more than or equal to ceramic sintering temperature；
Further, described carbon-source gas are flowing in vacuum tank, and by the air inlet of circulating line one side, one
Side outlet, in vacuum drying oven internal circulation flow.
Concrete steps according to ceramics method for carburizing of the invention are described as follows：
The first step（Surface treatment step）
By 30~120 minutes in ceramics immersion 1~55%HF solution, purified treatment is carried out to ceramic surface and in vivo so that
The internal space of ceramics is clean.Then, wash ceramic surface with water, then be placed in drying oven in 100~300 DEG C of heated dryings 4 of temperature
Hour, make carburizing ceramic body.
Second step（Carburization step）
Carburizing ceramic body is placed in carburizing vacuum drying oven, after containing vacuum stove, is vacuumized, reach vacuum
To 9-2-9.5-2MPa；And the continuous injection high-purity carbon source into vacuum drying oven so that the carbon source content in vacuum drying oven reaches 50-
60%.Then to vacuum drying oven by 5~10 DEG C/min of speed heating, when temperature reaches 1500-1600 DEG C, 2-4 hours are incubated, and
Flowing is circulated to the gas in stove by circulating pump in insulating process, described carbon-source gas are stream in vacuum tank
Dynamic, and by the air inlet of circulating line one side, one side outlet, in vacuum drying oven internal circulation flow.After insulation terminates, from carburizer
Take out, with fan or natural cooling.
3rd step（The step of forming sealer）
The carburizing ceramics of the surface treated in second step are surface-treated again with resin, are washed with water.Then exist
Heated drying at 200 DEG C of temperature, so as to obtain the carburized material that carburizing is to 0.01 μm to 100 μm.
It is an advantage of the current invention that：By highly purified carbon source under the vacuum state higher than ceramic sintering temperature, by carbon
Source is penetrated in ceramic body, and carburizing effect is better than general carburizing effect, and easy to operate, for improvement ceramics especially
The performance for being ceramic-metal combination is highly beneficial.
Claims (3)
1. a kind of metal ceramic surface processing method, it is characterised in that：Ceramic body is placed in into the vacuum full of carbon-source gas to hold
In device, more than or equal to ceramic sintering temperature, vacuum 9-2-10-2Under conditions of MPa, Carburization Treatment is carried out, 2-4 is little for insulation
When after take out ceramic, carburizing is finished；Comprise the following steps that：
The first step：Surface treatment step
By 30~120 minutes in ceramics immersion 1~55%HF solution, purified treatment is carried out to ceramic surface and in vivo so that ceramics
Internal space is clean；Then, wash ceramic surface with water, then be placed in drying oven in 100~300 DEG C of temperature heated drying 4 hours,
Make carburizing ceramic body；
Second step：Carburization step
Carburizing ceramic body is placed in carburizing vacuum drying oven, after containing vacuum stove, is vacuumized, make vacuum reach 9-2-10-2MPa；And the continuous injection high-purity carbon source into vacuum drying oven so that the carbon source content in vacuum drying oven reaches 50-60%；So
Afterwards to vacuum drying oven by 5~10 DEG C/min of speed heating, when temperature reaches 1500-1600 DEG C, 2-4 hours are incubated, and in insulation
During flowing is circulated to the gas in stove by circulating pump, described carbon-source gas are flowing in vacuum tank,
And by the air inlet of circulating line one side, one side outlet, in vacuum drying oven internal circulation flow；After insulation terminates, take out from carburizer,
With fan or natural cooling；
3rd step：The step of forming sealer
The carburizing ceramics of the surface treated in second step are surface-treated again with resin, are washed with water；Then in temperature
Heated drying at 200 DEG C, so as to obtain the carburized material that carburizing is to 0.01 μm to 100 μm.
2. a kind of metal ceramic surface processing method as claimed in claim 1, it is characterised in that：Described carbon source is
99.999% high-purity carbon source；It is that first sulphur gas and carbon fiber cotton mix to be formed.
3. a kind of metal ceramic surface processing method as claimed in claim 1, it is characterised in that：Described carbon-source gas concentration
The 40-60% of the volume of gas is accounted for for carbon source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410824967.1A CN104496548B (en) | 2014-12-27 | 2014-12-27 | Metal ceramic surface treating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410824967.1A CN104496548B (en) | 2014-12-27 | 2014-12-27 | Metal ceramic surface treating method |
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| CN104496548A CN104496548A (en) | 2015-04-08 |
| CN104496548B true CN104496548B (en) | 2017-05-17 |
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| CN106011733A (en) * | 2016-05-04 | 2016-10-12 | 无锡市嘉邦电力管道厂 | Metal ceramic surface treatment method |
| CN107324787A (en) * | 2017-07-11 | 2017-11-07 | 马鞍山市兴隆铸造有限公司 | A kind of method that carburizing deposition prepares high intensity silicon-base ceramic core |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR960004293A (en) * | 1994-07-27 | 1996-02-23 | 장기주 | Carbon Carburization Method of Ceramic Sliding Materials |
| CN104108951B (en) * | 2014-06-19 | 2016-07-06 | 广东华液动力科技有限公司 | The preparation method of special pottery, adopts the standby valve auxiliary structure of special ceramic and plunger pair |
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