CN106222474B - A kind of preparation method of silver-colored molybdenum sulfide sliding contact material - Google Patents

A kind of preparation method of silver-colored molybdenum sulfide sliding contact material Download PDF

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CN106222474B
CN106222474B CN201610742307.8A CN201610742307A CN106222474B CN 106222474 B CN106222474 B CN 106222474B CN 201610742307 A CN201610742307 A CN 201610742307A CN 106222474 B CN106222474 B CN 106222474B
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silver
sliding contact
contact material
molybdenum sulfide
preparation
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CN106222474A (en
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周晓龙
周兆波
曹建春
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Kunming University of Science and Technology
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Kunming University of Science and Technology
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    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/10—Alloys containing non-metals
    • C22C1/1005—Pretreatment of the non-metallic additives
    • C22C1/1015—Pretreatment of the non-metallic additives by preparing or treating a non-metallic additive preform
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/10—Alloys containing non-metals
    • C22C1/1036—Alloys containing non-metals starting from a melt
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/10—Alloys containing non-metals
    • C22C1/1036—Alloys containing non-metals starting from a melt
    • C22C1/1047—Alloys containing non-metals starting from a melt by mixing and casting liquid metal matrix composites
    • C22C1/1052—Alloys containing non-metals starting from a melt by mixing and casting liquid metal matrix composites by mixing and casting metal matrix composites with reaction
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
    • C22C32/0089—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with other, not previously mentioned inorganic compounds as the main non-metallic constituent, e.g. sulfides, glass
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C5/00—Alloys based on noble metals
    • C22C5/06—Alloys based on silver
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Composite Materials (AREA)
  • Manufacturing & Machinery (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Contacts (AREA)
  • Powder Metallurgy (AREA)

Abstract

The present invention discloses a kind of preparation method of silver-colored molybdenum sulfide sliding contact material, belongs to sliding contact material technical field.The method of the invention passes through to the MoS for receiving (micro-) grain of rice degree with self-lubricating property2Powder body material is granulated, and obtains 0.01mm~1.5mm or so spherical particles, and the spherical particles are bonded into differently shaped particle group with epoxy resin, then these differently shaped particles group is bonded in the inner surface of mould；Finally the silvering solution of fusing is poured into shaping dies, the MoS of different shapes with self-lubricating property such as hexagon or five deformations or circle is uniform-distribution with to prepare surface2The silver-based sliding contact material of particle swarm.The advantages of this method is that with short production cycle, technique is simple, and without wastage of material, be not required to mixed powder, be not required to the technique such as extruding and drawing shaping；And because using pouring technology, the silver-colored molybdenum sulfide sliding contact material prepared relative to currently used PM technique has the advantages that conductance, resistance to electrical wear are good.

Description

A kind of preparation method of silver-colored molybdenum sulfide sliding contact material
Technical field
The present invention relates to a kind of preparation method of silver-colored molybdenum sulfide sliding contact material, is prepared using the method for melting and casting Surface distributed has the silver-based sliding contact material of self-lubricating particle molybdenum sulfide, belongs to sliding contact material technical field.
Background technology
Silver-colored molybdenum sulfide（AgMoS2）Composite is a kind of slip electrical contact material being widely used as in the space flight such as satellite mechanism Material, main function is that the electrical power of Satellite vapour image and telemetered signal are delivered in satellite body.The quality of its performance Directly decide the stability, accuracy and life-span of circuit system.
Conventional AgMoS2The technology of preparing of composite contact material mainly uses PM technique, its technique be by The Ag powder and MoS of certain particle size2After powder is sufficiently mixed, by suppressing, sintering, several steps such as being densified to complete.The technique The advantages of be simple to operate, different MoS can be prepared according to being actually needed2The AgMoS of content2Composite；Shortcoming is Ag and MoS2 Interface be easily contaminated in preparation, interface cohesion it is poor, and MoS2Skewness of the particle in silver matrix, causes AgMoS2Conductivity of composite material and wearability it is unstable, have a strong impact on the stability and accuracy of circuit system.
The AgMoS that the present invention is prepared for powder metallurgy2It is insufficient existing for known technology, it is proposed that one kind is by simply casting Make to obtain the AgMoS with self-lubricating property2Sliding contact material.
The content of the invention
It is an object of the invention to provide a kind of silver-colored molybdenum sulfide sliding contact material preparation method, following step is specifically included Suddenly： MoS2Powder body material carries out being granulated the spherical particles for being prepared into a diameter of 0.01mm~1.5mm, and then this is spherical Particle is bonded to particle swarm, and the particle swarm is bonded on the inwall of shaping dies and (kept between particle swarm and particle swarm 0.5mm~10mm distance), and the silvering solution of fusing is poured into shaping dies, finally preparing surface has MoS2Particle swarm Silver-colored molybdenum sulfide sliding contact material.
Preferably, MoS of the present invention2The granularity of powder is 50nm -50um.
Preferably, particle swarm of the present invention can be circle, square, rectangle, pentagon, hexagon, linear pattern Pole shape, the particle swarm used in each preparation process can be the one or more in these shapes；When a kind of of use A kind of MoS of shape is only distributed with the silver-colored molybdenum sulfide sliding contact material surface being prepared during particle swarm2Particle swarm, work as use The MoS of various shapes is only distributed with the silver-colored molybdenum sulfide sliding contact material surface being prepared during a variety of particle swarms2Particle swarm； Wherein circle, the thickness of square, rectangle, pentagon, hexagon are 1.5mm-9mm；Linear pattern pole shape it is a diameter of 1.5mm-7.5mm.In addition to linear pattern pole shape particle swarm, the particle swarm institute envelope surface product of other shapes is not more than 80 square millimeters.
Preferably, used binding agent is epoxy resin during spheric granules being bonded into particle swarm.
Preferably, shaping dies of the present invention need to first pass through spray carbon processing.
Preferably, the melting of the silver-colored liquation of the present invention and pouring condition are：Fusion temperature is 980-1100 DEG C, is melted The silvering solution graphite powder of change or the covering of active powdered carbon, pouring temperature are 970-1050 DEG C.
Beneficial effects of the present invention：
（1）Traditional preparation AgMoS is abandoned2Sliding contact material frequently with powder metallurgy process need pressed compact, sintering, The techniques such as extruding, drawing, shorten technological process.
（2）Relative to powder metallurgic method, the AgMoS prepared by the present invention2The consistency of sliding contact material is higher, tool There is good conductance.
（3）AgMoS prepared by the present invention2Sliding contact material product and AgMoS in the market2Slide electrical contact Material is compared, and has the advantages of institutional framework is adjustable, consistency is high, conductance is good, wearability is good, thus has good city Field prospect.
Brief description of the drawings
Fig. 1 is differently shaped particle group.
Fig. 2 is the process chart of the present invention.
Specific embodiment
Below in conjunction with drawings and examples, the present invention is further elaborated, but the protection content of the present invention is not limited to implement The example scope.
Embodiment 1
Such as Fig. 2 technological process, by the MoS of 50nm granularities2Powder is granulated into 0.1mm spheric granules, and by 0.1mm Grain is bonded to such as the hexagon in Fig. 1 with epoxy resin（About 80 square millimeters of the hexagon particle swarm institute envelope surface product）, by 10 Individual hexagon is bonded to thickness as hexagon MoS thick 1mm2Particle swarm；Then by multiple hexagon MoS2Particle swarm be bonded to through The inwall of the casting mould of spray carbon processing is crossed, and causes MoS210mm distance is kept between particle swarm and particle swarm；Finally by 980 DEG C fusing silvering solution（Top layer is covered with activated carbon）It is poured into 970 DEG C of pouring temperatures in casting mould and MoS is made2Enhancing AgMoS2Sliding contact material.
Embodiment 2
Such as Fig. 2 technological process, by the MoS of 800nm granularities2Powder is granulated into 0.01mm spheric granules, and by 0.01mm Particle is bonded to such as the square in Fig. 1 with epoxy resin（About 5 square millimeters of the square particle swarm institute envelope surface product）, by 50 Individual square is bonded to thickness as square MoS thick 0.5mm2Particle swarm；Then by this multiple square MoS2Particle swarm bonds To the inwall of the casting mould by spray carbon processing, and cause MoS22mm distance is kept between particle swarm and particle swarm；Finally will The silvering solution of 1020 DEG C of fusings（Top layer is covered with activated carbon）It is poured into 1000 DEG C of pouring temperatures in casting mould and MoS is made2 The AgMoS of enhancing2Sliding contact material.
Embodiment 3
Such as Fig. 2 technological process, the graphite powder of 50um granularities is granulated into 0.5mm spheric granules, and by 0.5mm particles It is bonded to epoxy resin such as the round bar shape in Fig. 1, and causes the MoS of pole2The diameter of particle swarm reaches 2mm；Then will be more This individual a diameter of 2mm pole MoS2Particle swarm is bonded to the inwall of the casting mould by spraying carbon processing, and causes MoS2Particle 5mm distance is kept between group and particle swarm；Finally by the silvering solution of 1100 DEG C of fusings（Top layer is covered with activated carbon）At 1050 DEG C Pouring temperature, which is poured into casting mould, is made MoS2The AgMoS of enhancing2Sliding contact material.

Claims (8)

1. a kind of silver-colored molybdenum sulfide sliding contact material preparation method, it is characterised in that specifically include following steps： MoS2Powder Material is carried out being granulated the spherical particles for being prepared into a diameter of 0.01mm~1.5mm, and the spheric granules then is bonded into particle swarm, And the particle swarm is bonded on the inwall of shaping dies, and the silvering solution of fusing is poured into shaping dies, finally prepare There is MoS on surface2The silver-colored molybdenum sulfide sliding contact material of particle swarm.
2. silver-colored molybdenum sulfide sliding contact material preparation method according to claim 1, it is characterised in that：MoS2The grain of powder Spend for 50nm -50um.
3. the preparation method of silver-colored molybdenum sulfide sliding contact material according to claim 1, it is characterised in that：The particle The shape of group can be circle, square, rectangle, pentagon, hexagon, linear pattern pole shape；Wherein circular, square, Rectangle, pentagon, the thickness of hexagon are 1.5mm-9mm；A diameter of 1.5mm-7.5mm of linear pattern pole shape.
4. the preparation method of silver-colored molybdenum sulfide sliding contact material according to claim 1, it is characterised in that：Except linear pattern Outside pole shape particle swarm, the particle swarm institute envelope surface product of other shapes is not more than 80 square millimeters.
5. the preparation method of silver-colored molybdenum sulfide sliding contact material according to claim 1, it is characterised in that：Particle swarm with 0.5mm~10mm distance is kept between particle swarm.
6. the preparation method of silver-colored molybdenum sulfide sliding contact material according to claim 1, it is characterised in that：By spherical Used binding agent is epoxy resin during grain is bonded to particle swarm.
7. the preparation method of silver-colored molybdenum sulfide sliding contact material according to claim 1, it is characterised in that：Shaping dies Spray carbon processing is first passed through before use.
8. the preparation method of silver-colored molybdenum sulfide sliding contact material according to claim 1, it is characterised in that：The silver is molten The melting of liquid and pouring condition are：Fusion temperature is 980-1100 DEG C, the silvering solution graphite powder of fusing or the covering of active powdered carbon, is poured It is 970-1050 DEG C to note temperature.
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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101619406A (en) * 2009-07-24 2010-01-06 核工业理化工程研究院华核新技术开发公司 High-temperature nickel-based self-lubricating material and preparation method thereof

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030209103A1 (en) * 2002-05-10 2003-11-13 Komatsu Ltd. Cooper-based sintering sliding material and multi-layered sintered sliding member
JP2006037179A (en) * 2004-07-28 2006-02-09 Taiho Kogyo Co Ltd Pb-FREE COPPER-ALLOY-BASED COMPOSITE SLIDING MATERIAL SUPERIOR IN SEIZURE RESISTANCE
JP4757460B2 (en) * 2004-07-28 2011-08-24 大豊工業株式会社 Pb-free copper alloy composite sliding material with excellent seizure resistance

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101619406A (en) * 2009-07-24 2010-01-06 核工业理化工程研究院华核新技术开发公司 High-temperature nickel-based self-lubricating material and preparation method thereof

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