CN108176845A - A kind of preparation method of wear-resisting high-strength type self-lubricating contact material - Google Patents
A kind of preparation method of wear-resisting high-strength type self-lubricating contact material Download PDFInfo
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- CN108176845A CN108176845A CN201711279175.0A CN201711279175A CN108176845A CN 108176845 A CN108176845 A CN 108176845A CN 201711279175 A CN201711279175 A CN 201711279175A CN 108176845 A CN108176845 A CN 108176845A
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- 239000000463 material Substances 0.000 title claims abstract description 39
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 239000002245 particle Substances 0.000 claims abstract description 24
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052982 molybdenum disulfide Inorganic materials 0.000 claims abstract description 11
- RUTXIHLAWFEWGM-UHFFFAOYSA-H iron(3+) sulfate Chemical compound [Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O RUTXIHLAWFEWGM-UHFFFAOYSA-H 0.000 claims abstract description 8
- 229910000360 iron(III) sulfate Inorganic materials 0.000 claims abstract description 8
- 235000019799 monosodium phosphate Nutrition 0.000 claims abstract description 8
- AJPJDKMHJJGVTQ-UHFFFAOYSA-M sodium dihydrogen phosphate Chemical compound [Na+].OP(O)([O-])=O AJPJDKMHJJGVTQ-UHFFFAOYSA-M 0.000 claims abstract description 8
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 36
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 24
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 18
- 229910052786 argon Inorganic materials 0.000 claims description 18
- 239000007789 gas Substances 0.000 claims description 18
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 13
- 238000010438 heat treatment Methods 0.000 claims description 13
- 239000010439 graphite Substances 0.000 claims description 12
- 229910002804 graphite Inorganic materials 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 12
- 239000000843 powder Substances 0.000 claims description 12
- 239000010453 quartz Substances 0.000 claims description 12
- 238000010792 warming Methods 0.000 claims description 12
- 239000003708 ampul Substances 0.000 claims description 10
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 8
- 239000004917 carbon fiber Substances 0.000 claims description 8
- 238000000498 ball milling Methods 0.000 claims description 7
- 230000032683 aging Effects 0.000 claims description 6
- 238000009835 boiling Methods 0.000 claims description 6
- 239000008367 deionised water Substances 0.000 claims description 6
- 229910021641 deionized water Inorganic materials 0.000 claims description 6
- 239000011790 ferrous sulphate Substances 0.000 claims description 6
- 235000003891 ferrous sulphate Nutrition 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 6
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims description 6
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims description 6
- 238000004321 preservation Methods 0.000 claims description 6
- 239000013049 sediment Substances 0.000 claims description 6
- 239000000377 silicon dioxide Substances 0.000 claims description 6
- 238000005245 sintering Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 229910001097 yellow gold Inorganic materials 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 4
- 238000011282 treatment Methods 0.000 claims description 4
- 238000009777 vacuum freeze-drying Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 abstract description 8
- 239000011159 matrix material Substances 0.000 abstract description 8
- 229910019142 PO4 Inorganic materials 0.000 abstract description 6
- 230000001050 lubricating effect Effects 0.000 abstract description 6
- 239000010452 phosphate Substances 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 238000001179 sorption measurement Methods 0.000 abstract description 4
- 229910000403 monosodium phosphate Inorganic materials 0.000 abstract description 3
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 239000003795 chemical substances by application Substances 0.000 abstract description 2
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 abstract description 2
- 239000011164 primary particle Substances 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 abstract description 2
- 210000000463 red nucleus Anatomy 0.000 abstract description 2
- 239000007787 solid Substances 0.000 description 10
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 8
- 239000002131 composite material Substances 0.000 description 8
- 239000000314 lubricant Substances 0.000 description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 3
- 235000021317 phosphate Nutrition 0.000 description 3
- 229910052709 silver Inorganic materials 0.000 description 3
- 239000004332 silver Substances 0.000 description 3
- 238000005303 weighing Methods 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 210000001258 synovial membrane Anatomy 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
- B22F1/105—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material containing inorganic lubricating or binding agents, e.g. metal salts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/12—Both compacting and sintering
- B22F3/14—Both compacting and sintering simultaneously
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
- B22F2998/10—Processes characterised by the sequence of their steps
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- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Powder Metallurgy (AREA)
- Lubricants (AREA)
Abstract
The present invention relates to a kind of preparation methods of wear-resisting high-strength type self-lubricating contact material, belong to self-lubricating material technical field.The present invention is by being raw material by ferric sulfate, it is modifying agent through sodium dihydrogen phosphate, in the reaction, Coordination Adsorption occurs by phosphate radical and nucleus to act on, the phosphate radical being adsorbed on primary particle surface is parallel to the c-axis of iron oxide red nucleus, the Preferential adsorption of phosphate radical on these surfaces results in the nonequiaxial property growth of nucleus, prepare spindle matrix particle, it is deposited again through molybdenum disulfide to ferric oxide particles surface, since spindle particle can form rough architectural characteristic on self-lubricating material surface, the greasy property of surface of friction pair is improved by the dynamic pressure effect and secondary lubricating effect of its formation, after the technical finesses such as laser texturing tissue inter-variable occurs for pit surface simultaneously, effectively improve pit surface wear-resisting property.
Description
Technical field
The present invention relates to a kind of preparation methods of wear-resisting high-strength type self-lubricating contact material, belong to self-lubricating material technology
Field.
Background technology
Among sliding contact material field, metallic based solid lubriation material is a very important development electrical contact
Direction, since its excellent friction and wear behavior under certain particular surroundings makes it have received domestic and international scientific research people electrical contact person's
Extensive concern.The preparation method of metallic based solid lubriation material is exactly briefly that solid is moistened electrical contact lubrication prescription as lubrication
Constituent element is added among metallic matrix to form composite material.In friction process, it is in electrical contact as metallic framework is ground
Fall, lubricant is released from the gap of metal-base composites, and the low profit of friction coefficient is formed in friction table electric interface
Synovial membrane, therefore lasting effectively lubricating can be provided, reduce the abrasion of metal matrix material electrical contact.Metallic based solid lubriation material
It adapts under a variety of different atmospheric conditions environment, chemical environment, the electricity electrical contact special environment conditions such as compression ring border and high vacuum
It uses.Composite wood is lubricated for conduction metallic based solid, is in electrical contact to ensure that composite material has high conductivity, metallic matrix
There must be good electric conductivity to reduce the electrical contact that rubs to wipe, reduce the secondary friction coefficient of friction, composite material there should be enough consolidate
Body lubricant content, and excessively high solid contact lubricant content certainly will influence the overall conductance of metallic based solid lubriation material
For rate to increase the hook and thickness of friction surface electrical contact lubricating film, this will increase surface contacted resistance, improve electrical noise
It is horizontal.Therefore electrical contact metallic based solid lubriation material must take into account the greasy property and electric conductivity of material.
Due to having the good electric conductivity of silver simultaneously, the electricity for becoming space flight mechanism first choice connects silver-based solid lubricating composite material
Tactile basis material, thus it is external early in six the seventies, just carry out the correlative study of many silver-based solid lubricants, certainly
Real contact area of the lubriation material in friction is for material electrical property, the influence of friction and wear behavior, brush with it is right
When even face phase mutual friction, real contact area is small part in fact, is only more than brush designs only in electric current
Value times in the case of, real contact area just influences whether the heat of material, contact area on the heat heating influence of brush compared with
It is small, meanwhile, the raising of brush temperature can make contact resistance significantly rise office.Silver-colored molybdenum disulfide composite material was both good with metal
Electric conductivity there are molybdenum disulfide good lubricating properties again.But with the raising of application requirement, it is desirable that brush material has
There is more high wear resistance, so that brush has longer service life.So prepare a kind of electrical contact with wear-resisting property
Material lotus is necessary.
Invention content
The technical problems to be solved by the invention：Poor, the materials'use service life for existing contact material wear-resisting property
The problem of shorter, provides a kind of preparation method of wear-resisting high-strength type self-lubricating contact material.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
（1）In mass ratio 1:15, ferric sulfate and deionized water are stirred and adjust pH to 8.5, it is still aging, it must mix
Liquid；
（2）It counts in parts by weight, weighs 45~50 portions of mixed liquors, 3~5 parts of sodium dihydrogen phosphates and 3~5 parts of ferrous sulfate respectively and stir
Mixing is mixed, is adjusted to pH to 5.5, be stirred and is heated to boiling, after isothermal holding, standing is cooled to room temperature, and is centrifuged
And lower sediment is collected, vacuum freeze drying obtains modified particles；
（3）In mass ratio 1:10, modified particles are added in 200 mesh molybdenum disulfide powders, hybrid particles is obtained and is placed in quartz
Guan Zhong, sealed silica envelope simultaneously vacuumize, and heating heat treatment leads to argon gas and excludes air and insulation reaction, and standing is cooled to room temperature,
Stopping is passed through argon gas and collects to obtain modified mixture；
（4）It counts in parts by weight, weighs 45~50 parts of yellow golds, 10~15 parts of carbon fibers and 12~15 parts of modified mixing respectively
Material is placed in ball grinder, and ball milling is sieved to obtain ball-milled powder, is filled with into graphite jig, graphite jig is placed in argon gas atmosphere
Lower heating pressurized treatments, heat preservation sintering h, standing are cooled to room temperature, and demoulding can be prepared into a kind of wear-resisting high-strength type self-lubricating electricity
Contact material.
Step（1）The adjusting pH is using 10% sodium hydroxide solution of mass fraction.
Step（3）The heating heat treatment is that 450~500 DEG C are warming up to quartz ampoule by 5 DEG C/min.
Step（4）The heating pressurized treatments be warming up to by 5 DEG C/min 950~1000 DEG C and be forced into 25~
30MPa。
Compared with other methods, advantageous effects are the present invention：
（1）The present invention is modifying agent through sodium dihydrogen phosphate, in the reaction, passes through phosphate radical and crystalline substance by being raw material by ferric sulfate
Coordination Adsorption effect occurs for core, and the phosphate radical being adsorbed on primary particle surface is parallel to the c-axis of iron oxide red nucleus, and phosphate radical is at this
Preferential adsorption on a little surfaces results in the nonequiaxial property growth of nucleus, prepares spindle matrix particle, then through molybdenum disulfide
Deposition is to ferric oxide particles surface, since spindle particle can form rough architectural characteristic on self-lubricating material surface,
The greasy property of surface of friction pair is improved, while pit surface is passed through by the dynamic pressure effect and secondary lubricating effect of its formation
Tissue inter-variable occurs after the technical finesses such as laser texturing, improves pit surface wear-resisting property；
（2）The present invention deposits molybdenum disulfide by iron oxide surface and effectively improves the self-lubricating property of composite material, adds simultaneously
Carbon fibre material is added to be modified, since carbon fiber belongs to hard phase in the base, increases the hardness of matrix regional area, energy
The wear-resisting property of enough effective reinforcing materials；Meanwhile during scouring damage, real contact area very little, contact point has very
High temperature, the high temperature stability performance of carbon fiber effectively hinder the softening of matrix, reduce the adhesion mill generated due to matrix softens
Damage and abrasive dust, so as to further improve the wear-resisting property of material.
Specific embodiment
In mass ratio 1:15, ferric sulfate and deionized water are stirred and use 10% sodium hydroxide solution tune of mass fraction
Save pH to 8.5, still aging 6~8h obtains mixed liquor and counts in parts by weight, weigh respectively 45~50 portions of mixed liquors, 3~5 parts
Sodium dihydrogen phosphate and 3~5 parts of ferrous sulfate are placed in beaker, are stirred and 1% sulfuric acid solution of mass fraction are added dropwise to pH extremely
5.5, be stirred and be heated to boiling, after 2~3h of isothermal holding, standing is cooled to room temperature, under 1500~2000r/min from
The heart detaches and collects lower sediment, and vacuum freeze drying obtains modified particles；In mass ratio 1:10, modified particles are added to 200
In mesh molybdenum disulfide powder, obtain hybrid particles and be placed in quartz ampoule, sealed silica envelope is simultaneously evacuated to 15~20Pa, by 5 DEG C/
Min is warming up to quartz ampoule 450~500 DEG C, leads to argon gas and excludes air and 2~3h of insulation reaction, and standing is cooled to room temperature, and is stopped
It is passed through argon gas and collects to obtain modified mixture, count in parts by weight, weigh 45~50 parts of yellow golds, 10~15 parts of carbon fibers respectively
It is placed in ball grinder with 12~15 parts of modified mixtures, 3~5h of ball milling under 350~400r/min, crosses 400 mesh and sieve to obtain ball milling powder
End is simultaneously filled with into graphite jig, and graphite jig is placed under 25~30MPa, argon gas atmosphere, is warming up to by 5 DEG C/min
950~1000 DEG C, 3~5h of heat preservation sintering, standing is cooled to room temperature, and demoulding can be prepared into a kind of wear-resisting high-strength type self-lubricating electricity
Contact material.
Example 1
In mass ratio 1:15, ferric sulfate and deionized water are stirred and 10% sodium hydroxide solution of mass fraction is used to adjust pH
To 8.5, still aging 6h obtains mixed liquor and counts in parts by weight, respectively 45 portions of mixed liquors of weighing, 3 parts of sodium dihydrogen phosphates and 3 parts
Ferrous sulfate is placed in beaker, is stirred and 1% sulfuric acid solution of mass fraction is added dropwise to pH to 5.5, be stirred and heat
To boiling, after isothermal holding 2h, standing is cooled to room temperature, and is centrifuged under 1500r/min and is collected lower sediment, vacuum is cold
Dry modified particles are lyophilized；In mass ratio 1:10, modified particles are added in 200 mesh molybdenum disulfide powders, obtain hybrid particles
It is placed in quartz ampoule, sealed silica envelope is simultaneously evacuated to 15Pa, and 450 DEG C are warming up to quartz ampoule by 5 DEG C/min, leads to argon gas row
Except air and insulation reaction 2h, standing is cooled to room temperature, and stopping is passed through argon gas and collects to obtain modified mixture, counts in parts by weight,
It weighs 45 parts of yellow golds, 10 parts of carbon fibers and 12 parts of modified mixtures respectively to be placed in ball grinder, the ball milling under 350r/min
3h crosses 400 mesh and sieves ball-milled powder and to be filled with into graphite jig, graphite jig is placed under 25MPa, argon gas atmosphere,
950 DEG C are warming up to by 5 DEG C/min, heat preservation sintering 3h, standing is cooled to room temperature, and demoulding can be prepared into a kind of wear-resisting high-strength type certainly
Lubricate contact material.
Example 2
In mass ratio 1:15, ferric sulfate and deionized water are stirred and 10% sodium hydroxide solution of mass fraction is used to adjust pH
To 8.5, still aging 7h obtains mixed liquor and counts in parts by weight, respectively 47 portions of mixed liquors of weighing, 4 parts of sodium dihydrogen phosphates and 4 parts
Ferrous sulfate is placed in beaker, is stirred and 1% sulfuric acid solution of mass fraction is added dropwise to pH to 5.5, be stirred and heat
To boiling, after isothermal holding 3h, standing is cooled to room temperature, and is centrifuged under 1750r/min and is collected lower sediment, vacuum is cold
Dry modified particles are lyophilized；In mass ratio 1:10, modified particles are added in 200 mesh molybdenum disulfide powders, obtain hybrid particles
It is placed in quartz ampoule, sealed silica envelope is simultaneously evacuated to 17Pa, and 475 DEG C are warming up to quartz ampoule by 5 DEG C/min, leads to argon gas row
Except air and insulation reaction 2h, standing is cooled to room temperature, and stopping is passed through argon gas and collects to obtain modified mixture, counts in parts by weight,
It weighs 47 parts of yellow golds, 12 parts of carbon fibers and 13 parts of modified mixtures respectively to be placed in ball grinder, the ball milling under 375r/min
4h crosses 400 mesh and sieves ball-milled powder and to be filled with into graphite jig, graphite jig is placed under 27MPa, argon gas atmosphere,
975 DEG C are warming up to by 5 DEG C/min, heat preservation sintering 4h, standing is cooled to room temperature, and demoulding can be prepared into a kind of wear-resisting high-strength type certainly
Lubricate contact material.
Example 3
In mass ratio 1:15, ferric sulfate and deionized water are stirred and 10% sodium hydroxide solution of mass fraction is used to adjust pH
To 8.5, still aging 8h obtains mixed liquor and counts in parts by weight, respectively 50 portions of mixed liquors of weighing, 5 parts of sodium dihydrogen phosphates and 5 parts
Ferrous sulfate is placed in beaker, is stirred and 1% sulfuric acid solution of mass fraction is added dropwise to pH to 5.5, be stirred and heat
To boiling, after isothermal holding 3h, standing is cooled to room temperature, and is centrifuged under 2000r/min and is collected lower sediment, vacuum is cold
Dry modified particles are lyophilized；In mass ratio 1:10, modified particles are added in 200 mesh molybdenum disulfide powders, obtain hybrid particles
It is placed in quartz ampoule, sealed silica envelope is simultaneously evacuated to 20Pa, and 500 DEG C are warming up to quartz ampoule by 5 DEG C/min, leads to argon gas row
Except air and insulation reaction 3h, standing is cooled to room temperature, and stopping is passed through argon gas and collects to obtain modified mixture, counts in parts by weight,
It weighs 50 parts of yellow golds, 15 parts of carbon fibers and 15 parts of modified mixtures respectively to be placed in ball grinder, the ball milling under 400r/min
5h crosses 400 mesh and sieves ball-milled powder and to be filled with into graphite jig, graphite jig is placed under 30MPa, argon gas atmosphere,
1000 DEG C are warming up to by 5 DEG C/min, heat preservation sintering 5h, standing is cooled to room temperature, and demoulding can be prepared into a kind of wear-resisting high-strength type
Self-lubricating contact material.
Example 1,2,3 prepared by the present invention is tested for the property, specific test result is as follows shown in table table 1：
The 1 performance table of comparisons of table
As seen from the above table, the self-lubricating contact material that prepared by the present invention has excellent crocking resistance.
Claims (4)
1. a kind of preparation method of wear-resisting high-strength type self-lubricating contact material, it is characterised in that specifically preparation process is：
（1）In mass ratio 1:15, ferric sulfate and deionized water are stirred and adjust pH to 8.5, it is still aging, it must mix
Liquid；
（2）It counts in parts by weight, weighs 45~50 portions of mixed liquors, 3~5 parts of sodium dihydrogen phosphates and 3~5 parts of ferrous sulfate respectively and stir
Mixing is mixed, is adjusted to pH to 5.5, be stirred and is heated to boiling, after isothermal holding, standing is cooled to room temperature, and is centrifuged
And lower sediment is collected, vacuum freeze drying obtains modified particles；
（3）In mass ratio 1:10, modified particles are added in 200 mesh molybdenum disulfide powders, hybrid particles is obtained and is placed in quartz
Guan Zhong, sealed silica envelope simultaneously vacuumize, and heating heat treatment leads to argon gas and excludes air and insulation reaction, and standing is cooled to room temperature,
Stopping is passed through argon gas and collects to obtain modified mixture；
（4）It counts in parts by weight, weighs 45~50 parts of yellow golds, 10~15 parts of carbon fibers and 12~15 parts of modified mixing respectively
Material is placed in ball grinder, and ball milling is sieved to obtain ball-milled powder, is filled with into graphite jig, graphite jig is placed in argon gas atmosphere
Lower heating pressurized treatments, heat preservation sintering h, standing are cooled to room temperature, and demoulding can be prepared into a kind of wear-resisting high-strength type self-lubricating electricity
Contact material.
2. a kind of preparation method of wear-resisting high-strength type self-lubricating contact material according to claim 1, it is characterised in that：
Step（1）The adjusting pH is using 10% sodium hydroxide solution of mass fraction.
3. a kind of preparation method of wear-resisting high-strength type self-lubricating contact material according to claim 1, it is characterised in that：
Step（3）The heating heat treatment is that 450~500 DEG C are warming up to quartz ampoule by 5 DEG C/min.
4. a kind of preparation method of wear-resisting high-strength type self-lubricating contact material according to claim 1, it is characterised in that：
Step（4）The heating pressurized treatments is are warming up to 950~1000 DEG C by 5 DEG C/min and are forced into 25~30MPa.
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| CN201711279175.0A CN108176845B (en) | 2017-12-06 | 2017-12-06 | Preparation method of wear-resistant high-strength self-lubricating electric contact material |
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| CN108176845B CN108176845B (en) | 2020-06-26 |
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| CN103447531A (en) * | 2013-09-09 | 2013-12-18 | 中南大学 | Electric brush-sliding ring system made of silver-tungsten disulfide composite materials |
| CN106979268A (en) * | 2017-06-08 | 2017-07-25 | 海安县东洋通达汽车配件有限公司 | A kind of automobile friction |
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|---|---|---|---|---|
| JP2010267579A (en) * | 2009-05-18 | 2010-11-25 | Mitsubishi Electric Corp | Conductive adhesive, method of manufacturing semiconductor device using the same, and semiconductor device |
| CN102304681A (en) * | 2011-08-29 | 2012-01-04 | 中南大学 | Carbon fiber and molybdenum disulfide silver-based composite material for electric brush and application method for composite material |
| DE102011089975B3 (en) * | 2011-12-27 | 2013-04-18 | Ks Gleitlager Gmbh | Slide bearing composite material comprises a metallic support layer made of steel, a porous metallic sliding and carrier layer applied on the support layer, a lubricating layer material based on polytetrafluoroethylene, and fillers |
| CN102876913A (en) * | 2012-09-07 | 2013-01-16 | 重庆川仪自动化股份有限公司 | Sulfide-containing self-lubricating sliding electrical contact material |
| CN103447531A (en) * | 2013-09-09 | 2013-12-18 | 中南大学 | Electric brush-sliding ring system made of silver-tungsten disulfide composite materials |
| CN106979268A (en) * | 2017-06-08 | 2017-07-25 | 海安县东洋通达汽车配件有限公司 | A kind of automobile friction |
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| CN108176845B (en) | 2020-06-26 |
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