CN108941576A - A kind of Material for Pantograph Slide preparation method and preparation facilities - Google Patents
A kind of Material for Pantograph Slide preparation method and preparation facilities Download PDFInfo
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- CN108941576A CN108941576A CN201810756677.6A CN201810756677A CN108941576A CN 108941576 A CN108941576 A CN 108941576A CN 201810756677 A CN201810756677 A CN 201810756677A CN 108941576 A CN108941576 A CN 108941576A
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- sintering
- main body
- graphite
- graphite powder
- copper
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Classifications
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- 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
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
-
- 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
- B22F1/17—Metallic particles coated with metal
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/31—Coating with metals
- C23C18/38—Coating with copper
-
- 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
-
- 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
- B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
Abstract
The embodiment of the present application shows a kind of Material for Pantograph Slide preparation method and preparation facilities, the described method includes: graphite powder sintering is obtained roughening graphite powder, roughening graphite powder is put into sensitizing solution and boils to obtain sensitization graphite powder, the solution that sensitization graphite powder is put into palladium chloride is obtained into activation graphite powder, activation graphite powder is mixed with zinc powder, glacial acetic acid is added simultaneously, copper-bath pours into, passivating solution is added, obtain passivation graphite powder, dry copper coated graphite powder is uniformly mixed with copper powder, it is put into cold moudling in mold, obtain copper forming graphite block, copper forming graphite block is sintered, obtain Material for Pantograph Slide, the present invention provides a kind of Material for Pantograph Slide preparation method and preparation facilities, the abrasion of pantograph pan when can reduce contact wire, resistance enhancing impact flexibility can be reduced again, extend the service life of pantograph pan.
Description
Technical field
The present invention relates to graphite material technical field, in particular to a kind of Material for Pantograph Slide preparation method and preparation dress
It sets.
Background technique
Pantograph pan is the important collecting element in electric locomotive power supply system, is typically mounted at motorcycle pantograph most
Top is directly contacted with contact line conducting wire, is guided the electric current on power transmission network under static or sliding mode, is transferred to machine
Vehicle power supply system, to maintain electric locomotive to operate normally, the slide plate in the electric locomotive of high-speed cruising will seriously endanger once failing
And traffic safety, therefore the superiority and inferiority of slide plate quality has very important influence to locomotive.Metal series sliding material mainly has copper
Alloy and steel, carbon series slide plate material are mainly pure carbon, and since the affinity of metal series slide plate and contact wire is strong, contact is led
The serious wear of line, therefore the application of metal series slide plate is gradually restricted, carbon series slide plate material at work can be
Contact wire surface forms one layer of thin lubricating film, effectively reduces the friction factor of contact wire, therefore reduce contact wire
Abrasion, but mainly using pure carbon slide plate but since its serial fixed resistance of carbon is larger, impact flexibility is smaller, slide plate
Service life is shorter.
Summary of the invention
To overcome the problems in correlation technique, the present invention provides a kind of Material for Pantograph Slide preparation method and preparation
Device the abrasion of pantograph pan and reduces resistance enhancing impact flexibility when can reduce contact wire, it is sliding to extend pantograph
The service life of plate.
The embodiment of the invention discloses a kind of Material for Pantograph Slide preparation method and preparation facilities, the pantograph pans
Preparation method the following steps are included:
Graphite powder is put into after being sintered and cooled at 350 DEG C in furnace and is washed with distilled water, the graphite powder after washing is put into solution and is boiled
Boiling obtains roughening graphite powder with distilled water flushing to neutrality in vacuum filter after cooling；
The roughening graphite powder is put into sensitizing solution after boiling 20min and uses distilled water flushing, obtains sensitization graphite powder；
The sensitization graphite powder is put into the solution of palladium chloride and is stirred continuously, is taken out after being activated, activation graphite is obtained
Powder；
The activation graphite powder is mixed with zinc powder, while glacial acetic acid is added, is after mixing evenly 65g/L by concentration with glass bar
Copper-bath pour into, and with after the completion of magnetic stirrer to fully reacting copper facing, passivating solution is added, obtains passivation stone
Ink powder；
The passivation graphite powder is cleaned with deionized water, puts and is dried in vacuo at 75 DEG C in a vacuum drying oven, obtains dry plating
Copper graphite powder；
The dry copper coated graphite powder is uniformly mixed with copper powder, is put into mold the cold moudling under 250Mpa pressure, pressure maintaining
Copper forming graphite block is obtained after 1min；
The copper forming graphite block is sintered, sintering temperature is 850-950 DEG C, is pressed into sintering process into sintering vessel
Argon gas keeps the temperature 6h, obtains the Material for Pantograph Slide.
Optionally, the passivating solution includes the water of the nitric acid of specific gravity 5% and the potassium bichromate of specific gravity 4% and specific gravity 91%.
Optionally, the inner wall of the mold is coated with one layer of vaseline.
Optionally, the crucible electrical resistance furnace is high purity graphite crucible, and is covered using graphite powder.
Using a kind of Material for Pantograph Slide preparation method that first aspect provides, graphite powder is put into 350 in furnace first
It is washed with distilled water after being sintered and cooled at DEG C, the graphite powder after washing is put into solution and is boiled, after cooling in vacuum filter
With distilled water flushing to neutrality, roughening graphite powder is obtained, graphite powder can all contact oiliness object during the preparation process or in air
Matter, thus have phat fat soapy feeling, oleophilic drainage can remove its surface contaminants using chemical degreasing liquid or high temperature roast, reach
The purpose of hydrophiling；The roughening graphite powder is put into sensitizing solution by second step boil 20min after with distilled water flushing, obtain quick
Fossil ink powder, sensitized treatment are that material surface is made to adsorb one layer of metal ion with reproducibility；Third step is by the sensitization stone
Ink powder is put into the solution of palladium chloride and is stirred continuously, and takes out after being activated, and activation graphite powder is obtained, in order to enable chemical plating
Spontaneous progress needs to generate discontinuous one layer of noble metal nucleus with catalytic capability in non-metal material surface, as change
Learn plating in cause metal deposit active centre, consequently, it is desirable to plate apply before be activated；4th step is by the activation graphite
Powder is mixed with zinc powder, while glacial acetic acid is added, and is after mixing evenly poured into copper-bath with glass bar, and use magnetic stirrer
After the completion of stirring to fully reacting copper facing, passivating solution is added, obtains passivation graphite powder, pretreated graphite powder is mixed with zinc powder
It closes, while glacial acetic acid is added, after mixing evenly poured into copper-bath with glass bar, and extremely reacted with magnetic stirrer
Completely.Why to be stirred continuously during electroless copper, be facilitated because graphite particle can be made sufficiently to suspend in this way
Copper ion is spread to graphite surface, to maintain certain deposition rate, after the completion of copper facing, passivating solution is added, to copper coated graphite powder
It is passivated processing, to prevent the copper on graphite powder to be oxidized；5th step cleans the passivation graphite powder with deionized water, puts
It is dried in vacuo at 75 DEG C in a vacuum drying oven, obtains dry copper coated graphite powder, graphite powder drying can be reduced further
The copper facing on graphite powder surface is oxidized；The dry copper coated graphite powder is uniformly mixed by the 6th step with copper powder, is put into mold
Cold moudling under 250Mpa pressure obtains copper forming graphite block after pressure maintaining 1min, mixed powder uniformity not only influence forming process and
Green compact quality, and the progress and the quality of final product of sintering process can be seriously affected, cold moudling help to maintain copper with
Bond strength between graphite powder；The copper forming graphite block is sintered by the 7th step, and sintering temperature is 850-950 DEG C, is burnt
Argon gas is pressed into during knot into sintering vessel, 6h is kept the temperature, obtains the Material for Pantograph Slide, sintering is the pass of powder metallurgy
Key process plays critically important effect to powder metallurgy production, since copper is easy to oxidize at high temperature, so being passed through inert gas
Argon gas prevents copper to be oxidized at high temperature；The present invention provides a kind of Material for Pantograph Slide preparation method, can reduce contact and lead
The abrasion of pantograph pan when line, and resistance enhancing impact flexibility can be reduced, extend the service life of pantograph pan.
According to the second aspect of the disclosure, a kind of Material for Pantograph Slide preparation facilities is provided, described device is for being sintered
The copper forming graphite block, described device include: sintering main body Container and sintering main body, and the sintering main body is set to described
It is sintered the top of main body Container, the sintering main body Container is sealing container, and the inside of the sintering main body Container is set
It is equipped with partition, it is respectively upper sintering that the inside of the sintering main body accommodating cavity device is divided into two independent spaces by the partition
Main body accommodating cavity and lower sintering main body accommodating cavity, the upper sintering main body accommodating cavity and the lower sintering main body accommodating cavity pass through institute
The multiple through-holes being arranged on partition are stated to be connected；
Sintering vessel accommodating cavity is provided at the top of the sintering main body Container, the bottom of the sintering main body is set to described
The shape of the inside of sintering vessel accommodating cavity, the bottom shape and the sintering vessel accommodating cavity of the sintering main body matches,
The sintering main body includes sintering ontology and sintering upper cover, and the sintering upper cover is set to the top of the sintering ontology, described
Sintering ontology is internally provided with graphite block accommodating cavity, and the graphite block accommodating cavity is internally provided with graphite block bearing plate, institute
Graphite block bearing plate is stated to be in contact with the inner wall of the graphite block accommodating cavity；
The side wall of the sintering ontology is that the side wall of sintering ontology described in hollow form is provided with gas filled cavity, the sintering ontology
Side wall at the top of be provided with aspirating hole, the sintering upper cover includes upper cover bearing plate, the setting of the top of the upper cover bearing plate
There is aspiration pump, the aspiration pump is connected with the inside of the gas filled cavity, is provided with and fills at the top of the upper cover bearing plate
Air pump, the inflator pump are connected with the inside of the graphite block accommodating cavity, the gas filled cavity and the upper sintering main body
Accommodating cavity is connected.
Optionally, the sintering vessel accommodating cavity is set as multiple, and the sintering main body is set as multiple, Mei Gesuo
The gas filled cavity for stating sintering main body is connected with the gas filled cavity of the adjacent sintering main body.
Optionally, the graphite block bearing plate is set as multiple.
Optionally, the sintering main body Container coats having heaters.
Optionally, thermal insulation material is coated on the side wall of the sintering ontology.
A kind of Material for Pantograph Slide preparation facilities shown in second aspect, described device for be sintered the copper graphite at
Sintering upper cover is placed on burning in use, copper forming graphite block to be sintered is placed on graphite block bearing plate first by type block
Upper sintering main body accommodating cavity and lower sintering main body accommodating cavity after being sealed, are full of the sodium chloride of high temperature, beaten by the top for tying ontology
Aspiration pump is opened, the air pressure decline of gas filled cavity, high-temp chlorination sodium solution are inhaled into gas filled cavity, complete to graphite at this time
Heating inside block accommodating cavity, high-temp chlorination sodium can be full of entire gas filled cavity, can be equal to entire graphite block accommodating cavity
Even heating prevents heating unevenness is sintering finished to copper forming graphite block from cracking or being sintered the problems such as incomplete, second party
A kind of Material for Pantograph Slide preparation facilities shown in face is used to be sintered the copper forming graphite block of the copper forming graphite block sintering
When can reduce contact wire the abrasion of pantograph pan and reduce resistance enhancing impact flexibility, extend pantograph pan
Service life.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of the application, letter will be made to attached drawing needed in the embodiment below
Singly introduce, it should be apparent that, for those of ordinary skills, without creative efforts, also
Other drawings may be obtained according to these drawings without any creative labor.
Fig. 1 is a kind of flow diagram of Material for Pantograph Slide preparation method provided in an embodiment of the present invention；
Fig. 2 is a kind of overall schematic of Material for Pantograph Slide preparation facilities provided in an embodiment of the present invention；
Fig. 3 be another embodiment of the present invention provides a kind of Material for Pantograph Slide preparation facilities overall schematic.
Specific embodiment
Technical solution in order to enable those skilled in the art to better understand the present invention, below in conjunction with of the invention real
The attached drawing in example is applied, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without making creative work, all should belong to protection of the present invention
Range.
Embodiment one
Be a kind of Material for Pantograph Slide preparation method provided in an embodiment of the present invention referring to Fig. 1, which is characterized in that it is described by
Pantograph slider preparation method the following steps are included:
Graphite powder is put into after being sintered and cooled at 350 DEG C in furnace and is washed with distilled water, the graphite powder after washing is put into solution and is boiled
Boiling obtains roughening graphite powder with distilled water flushing to neutrality in vacuum filter after cooling；
The roughening graphite powder is put into sensitizing solution after boiling 20min and uses distilled water flushing, obtains sensitization graphite powder；
The sensitization graphite powder is put into the solution of palladium chloride and is stirred continuously, is taken out after being activated, activation graphite is obtained
Powder；
The activation graphite powder is mixed with zinc powder, while glacial acetic acid is added, is after mixing evenly 65g/L by concentration with glass bar
Copper-bath pour into, and with after the completion of magnetic stirrer to fully reacting copper facing, passivating solution is added, obtains passivation stone
Ink powder；
The passivation graphite powder is cleaned with deionized water, puts and is dried in vacuo at 75 DEG C in a vacuum drying oven, obtains dry plating
Copper graphite powder；
The dry copper coated graphite powder is uniformly mixed with copper powder, is put into mold the cold moudling under 250Mpa pressure, pressure maintaining
Copper forming graphite block is obtained after 1min；
The copper forming graphite block is sintered, sintering temperature is 850-950 DEG C, is pressed into sintering process into sintering vessel
Argon gas keeps the temperature 6h, obtains the Material for Pantograph Slide.
Graphite powder, is put into furnace at 350 DEG C is sintered first by a kind of isostatic pressing formed graphite preparation method that embodiment one provides,
It is washed with distilled water after cooling, the graphite powder after washing is put into solution and is boiled, use distilled water in vacuum filter after cooling
It rinses to neutrality, obtains roughening graphite powder, graphite powder can all contact oily matter during the preparation process or in air, thus have
Phat fat soapy feeling, oleophilic drainage can remove its surface contaminants using chemical degreasing liquid or high temperature roast, reach the mesh of hydrophiling
's；The roughening graphite powder is put into sensitizing solution by second step boil 20min after with distilled water flushing, obtain sensitization graphite powder,
Sensitized treatment is that material surface is made to adsorb one layer of metal ion with reproducibility；The sensitization graphite powder is put into chlorine by third step
Change in the solution of palladium and be stirred continuously, taken out after being activated, obtains activation graphite powder, in order to enable the spontaneous progress of chemical plating,
It needs to generate discontinuous one layer of noble metal nucleus with catalytic capability in non-metal material surface, as drawing in chemical plating
Send out metal deposit active centre, consequently, it is desirable to plate apply before be activated；4th step is by the activation graphite powder and zinc powder
Mixing, while being added glacial acetic acid, is after mixing evenly poured into copper-bath with glass bar, and with magnetic stirrer to anti-
After the completion of answering complete copper facing, passivating solution is added, obtains passivation graphite powder, pretreated graphite powder is mixed with zinc powder, simultaneously
Glacial acetic acid is added, is after mixing evenly poured into copper-bath with glass bar, and with magnetic stirrer to fully reacting.It
It is to facilitate copper ion because graphite particle can be made sufficiently to suspend in this way so to be stirred continuously during electroless copper
It is spread to graphite surface, to maintain certain deposition rate, after the completion of copper facing, passivating solution is added, copper coated graphite powder is carried out blunt
Change processing, to prevent the copper on graphite powder to be oxidized；5th step cleans the passivation graphite powder with deionized water, is placed on vacuum
It is dried in vacuo at 75 DEG C in drying box, obtains dry copper coated graphite powder, graphite powder drying can further be reduced into graphite powder
The copper facing on surface is oxidized；The dry copper coated graphite powder is uniformly mixed by the 6th step with copper powder, is put into mold in 250Mpa
Cold moudling under pressure obtains copper forming graphite block after pressure maintaining 1min, and mixed powder uniformity not only influences forming process and green compact matter
Amount, and the progress and the quality of final product of sintering process can be seriously affected, cold moudling helps to maintain copper and graphite powder
Between bond strength；The copper forming graphite block is sintered by the 7th step, and sintering temperature is 850-950 DEG C, sintering process
It is middle that argon gas is pressed into sintering vessel, 6h is kept the temperature, obtains the Material for Pantograph Slide, sintering is the key that powder metallurgy work
Sequence plays critically important effect to powder metallurgy production, since copper is easy to oxidize at high temperature, so being passed through inert gas argon
Gas prevents copper to be oxidized at high temperature；The present invention provides a kind of Material for Pantograph Slide preparation method, can reduce contact wire
When pantograph pan abrasion, and can reduce resistance enhancing impact flexibility, extend the service life of pantograph pan.
Embodiment two
For a kind of isostatic pressing formed graphite preparation method provided in an embodiment of the present invention, which is characterized in that the pantograph pan preparation
Method the following steps are included:
Graphite powder is put into after being sintered and cooled at 350 DEG C in furnace and is washed with distilled water, the graphite powder after washing is put into solution and is boiled
Boiling obtains roughening graphite powder with distilled water flushing to neutrality in vacuum filter after cooling；
The roughening graphite powder is put into sensitizing solution after boiling 20min and uses distilled water flushing, obtains sensitization graphite powder；
The sensitization graphite powder is put into the solution of palladium chloride and is stirred continuously, is taken out after being activated, activation graphite is obtained
Powder；
The activation graphite powder is mixed with zinc powder, while glacial acetic acid is added, is after mixing evenly 65g/L by concentration with glass bar
Copper-bath pour into, and with after the completion of magnetic stirrer to fully reacting copper facing, passivating solution is added, obtains passivation stone
Ink powder；
The passivation graphite powder is cleaned with deionized water, puts and is dried in vacuo at 75 DEG C in a vacuum drying oven, obtains dry plating
Copper graphite powder；
The dry copper coated graphite powder is uniformly mixed with copper powder, is put into mold the cold moudling under 250Mpa pressure, pressure maintaining
Copper forming graphite block is obtained after 1min；
The copper forming graphite block is sintered, sintering temperature is 850-950 DEG C, is pressed into sintering process into sintering vessel
Argon gas keeps the temperature 6h, obtains the Material for Pantograph Slide.
Wherein, the passivating solution includes the water of the nitric acid of specific gravity 5% and the potassium bichromate of specific gravity 4% and specific gravity 91%, is used
Potassium bichromate not only can be to copper graphite block Passivation Treatment, it will be appreciated also that all kinds of greasy dirts and patina etc., guarantee the purity of material.
Embodiment three
For a kind of isostatic pressing formed graphite preparation method provided in an embodiment of the present invention, which is characterized in that the pantograph pan preparation
Method the following steps are included:
Graphite powder is put into after being sintered and cooled at 350 DEG C in furnace and is washed with distilled water, the graphite powder after washing is put into solution and is boiled
Boiling obtains roughening graphite powder with distilled water flushing to neutrality in vacuum filter after cooling；
The roughening graphite powder is put into sensitizing solution after boiling 20min and uses distilled water flushing, obtains sensitization graphite powder；
The sensitization graphite powder is put into the solution of palladium chloride and is stirred continuously, is taken out after being activated, activation graphite is obtained
Powder；
The activation graphite powder is mixed with zinc powder, while glacial acetic acid is added, is after mixing evenly 65g/L by concentration with glass bar
Copper-bath pour into, and with after the completion of magnetic stirrer to fully reacting copper facing, passivating solution is added, obtains passivation stone
Ink powder；
The passivation graphite powder is cleaned with deionized water, puts and is dried in vacuo at 75 DEG C in a vacuum drying oven, obtains dry plating
Copper graphite powder；
The dry copper coated graphite powder is uniformly mixed with copper powder, is put into mold the cold moudling under 250Mpa pressure, pressure maintaining
Copper forming graphite block is obtained after 1min；
The copper forming graphite block is sintered, sintering temperature is 850-950 DEG C, is pressed into sintering process into sintering vessel
Argon gas keeps the temperature 6h, obtains the Material for Pantograph Slide.
Wherein, the inner wall of the mold is coated with one layer of vaseline, and lubrication can be played by applying one layer of vaseline in mould inner wall
Effect, prevent scratch copper graphite, improve the surface property of finished product.
Example IV
For a kind of isostatic pressing formed graphite preparation method provided in an embodiment of the present invention, which is characterized in that the pantograph pan preparation
Method the following steps are included:
Graphite powder is put into after being sintered and cooled at 350 DEG C in furnace and is washed with distilled water, the graphite powder after washing is put into solution and is boiled
Boiling obtains roughening graphite powder with distilled water flushing to neutrality in vacuum filter after cooling；
The roughening graphite powder is put into sensitizing solution after boiling 20min and uses distilled water flushing, obtains sensitization graphite powder；
The sensitization graphite powder is put into the solution of palladium chloride and is stirred continuously, is taken out after being activated, activation graphite is obtained
Powder；
The activation graphite powder is mixed with zinc powder, while glacial acetic acid is added, is after mixing evenly 65g/L by concentration with glass bar
Copper-bath pour into, and with after the completion of magnetic stirrer to fully reacting copper facing, passivating solution is added, obtains passivation stone
Ink powder；
The passivation graphite powder is cleaned with deionized water, puts and is dried in vacuo at 75 DEG C in a vacuum drying oven, obtains dry plating
Copper graphite powder；
The dry copper coated graphite powder is uniformly mixed with copper powder, is put into mold the cold moudling under 250Mpa pressure, pressure maintaining
Copper forming graphite block is obtained after 1min；
The copper forming graphite block is sintered, sintering temperature is 850-950 DEG C, is pressed into sintering process into sintering vessel
Argon gas keeps the temperature 6h, obtains the Material for Pantograph Slide.
Wherein, the crucible electrical resistance furnace is high purity graphite crucible, and is covered using graphite powder, since copper powder is easy at high temperature
Oxidation can further prevent copper powder to be oxidized, improve the items of product using high purity graphite crucible and with graphite powder covering
Energy.
Embodiment five
For a kind of Material for Pantograph Slide preparation facilities provided in an embodiment of the present invention, described device is for being sintered the copper graphite
Forming blocks, described device include: sintering main body Container 1 and sintering main body 2, and the sintering main body 2 is set to the sintering master
The top of body Container 1, the sintering main body Container 1 are sealing container, and the sintering main body Container 1 is internally provided with
Partition 11, it is respectively upper burn that the inside of the sintering main body accommodating cavity device 1 is divided into two independent spaces by the partition 11
Tie main body accommodating cavity 12 and lower sintering main body accommodating cavity 13, the upper sintering main body accommodating cavity 12 and the lower sintering main body accommodating
Chamber 13 is connected by the multiple through-holes 14 being arranged on the partition 11；
The top of the sintering main body Container 1 is provided with sintering vessel accommodating cavity 16, and the bottom of the sintering main body 2 is set to
The inside of the sintering vessel accommodating cavity 16, the bottom shape of the sintering main body 12 and the shape of the sintering vessel accommodating cavity 16
Shape matches, and the sintering main body 2 includes sintering ontology 21 and sintering upper cover 22, and the sintering upper cover 22 is set to the sintering
The top of ontology 21, the sintering ontology 21 are internally provided with graphite block accommodating cavity 23, the graphite block accommodating cavity 23 it is interior
Portion is provided with graphite block bearing plate 24, and the graphite block bearing plate 24 is in contact with the inner wall of the graphite block accommodating cavity 23；
The side wall of the sintering ontology 21 is that the side wall of sintering ontology 21 described in hollow form is provided with gas filled cavity 211, described
Be sintered at the top of the side wall of ontology 21 and be provided with aspirating hole 212, the sintering upper cover 22 includes upper cover bearing plate 221, it is described on
The top of lid bearing plate 221 is provided with aspiration pump 222, and the aspiration pump 222 is connected with the inside of the gas filled cavity 211
Logical, the top of the upper cover bearing plate 221 is provided with inflator pump 223, the inflator pump 223 and the graphite block accommodating cavity 23
Inside is connected, and the gas filled cavity 211 is connected with the upper sintering main body accommodating cavity 12.
Described device is for being sintered the copper forming graphite block, in use, first putting copper forming graphite block to be sintered
It sets on graphite block bearing plate, sintering upper cover is placed on to the top of sintering ontology, after being sealed, by upper sintering main body accommodating cavity
It is full of the sodium chloride of high temperature with lower sintering main body accommodating cavity, opens aspiration pump, at this time the air pressure decline of gas filled cavity, high-temperature chlorine
Change sodium solution to be inhaled into gas filled cavity, complete to the heating inside graphite block accommodating cavity, high-temp chlorination sodium can be full of whole
A gas filled cavity can be evenly heated to entire graphite block accommodating cavity, prevent heating unevenness from sintering into copper forming graphite block
Product crack or are sintered the problems such as incomplete, and a kind of Material for Pantograph Slide preparation facilities shown in second aspect is for burning
The abrasion of pantograph pan of the copper forming graphite block of copper forming graphite block sintering being tied when can reduce contact wire and subtract
Small resistance enhances impact flexibility, extends the service life of pantograph pan.
Embodiment six
The embodiment of the present invention and embodiment five the difference is that, the sintering vessel accommodating cavity 16 is set as multiple,
The sintering main body 2 is set as multiple, it is each it is described sintering main body 2 the gas filled cavity 211 with the adjacent burning
The gas filled cavity 211 of knot main body 2 is connected, and the sintering main body is set as multiple, the institute of each sintering main body
Gas filled cavity is stated to be connected with the gas filled cavity of the adjacent sintering main body.The series connection of multiple sintering main bodys is made
With, it can reduce the size of sintering main body, it is small in size effectively to reduce scattering and disappearing for heat.
Embodiment seven
The embodiment of the present invention and embodiment five the difference is that, the graphite block bearing plate 24 is set as multiple, increases stone
The quantity of ink stick bearing plate 24 can improve the service efficiency of the device space to greatest extent, economize on resources.
Embodiment eight
The embodiment of the present invention and embodiment five the difference is that, the sintering main body Container 1 coats having heaters 15, height
The sodium chloride of temperature can further heat under the action of heater 15, prevent heat loss, guarantee sintering temperature, and sintering is completed
Afterwards, after aspiration pump 222 stops working, sodium chloride solution flows back to sintering main body accommodating cavity 12 and the lower sintering main body accommodating cavity
13, external heater 15 can directly heat the sodium chloride solution that temperature reduces, without sodium chloride solution is taken
It is heated out with other heating equipment, improves production efficiency.
Embodiment nine
The embodiment of the present invention and embodiment five the difference is that, be sintered described in the embodiment of the present invention on the side wall of ontology 21
It is coated with thermal insulation material 25, by filling thermal insulation material, the heat loss of raw material is reduced, improves the efficiency of sintering.
Those skilled in the art will readily occur to its of the application after considering specification and practicing application disclosed herein
Its embodiment.This application is intended to cover any variations, uses, or adaptations of the application, these modifications, purposes or
Person's adaptive change follows the general principle of the application and including the undocumented common knowledge in the art of the application
Or conventional techniques.The description and examples are only to be considered as illustrative, and the true scope and spirit of the application are by above
Claim is pointed out.
It should be understood that the application is not limited to the accurate process for being described above and being shown in the accompanying drawings, and
And various modifications and changes may be made without departing from the scope thereof.Scope of the present application is only limited by the accompanying claims.
Claims (9)
1. a kind of Material for Pantograph Slide preparation method, which is characterized in that the Material for Pantograph Slide preparation method include with
Lower step:
Graphite powder is put into after being sintered and cooled at 350 DEG C in furnace and is washed with distilled water, the graphite powder after washing is put into solution and is boiled
Boiling obtains roughening graphite powder with distilled water flushing to neutrality in vacuum filter after cooling；
The roughening graphite powder is put into sensitizing solution after boiling 20min and uses distilled water flushing, obtains sensitization graphite powder；
The sensitization graphite powder is put into the solution of palladium chloride and is stirred continuously, is taken out after being activated, activation graphite is obtained
Powder；
The activation graphite powder is mixed with zinc powder, while glacial acetic acid is added, is after mixing evenly 65g/L by concentration with glass bar
Copper-bath pour into, and with after the completion of magnetic stirrer to fully reacting copper facing, passivating solution is added, obtains passivation stone
Ink powder；
The passivation graphite powder is cleaned with deionized water, puts and is dried in vacuo at 75 DEG C in a vacuum drying oven, obtains dry plating
Copper graphite powder；
The dry copper coated graphite powder is uniformly mixed with copper powder, is put into mold the cold moudling under 250Mpa pressure, pressure maintaining
Copper forming graphite block is obtained after 1min；
The copper forming graphite block is sintered, sintering temperature is 850-950 DEG C, is pressed into sintering process into sintering vessel
Argon gas keeps the temperature 6h, obtains the Material for Pantograph Slide.
2. a kind of Material for Pantograph Slide preparation method according to claim 1, which is characterized in that the passivating solution includes
The water of the nitric acid of specific gravity 5% and the potassium bichromate of specific gravity 4% and specific gravity 91%.
3. a kind of Material for Pantograph Slide preparation method according to claim 1, which is characterized in that the inner wall of the mold
Coated with one layer of vaseline.
4. a kind of Material for Pantograph Slide preparation method according to claim 1, which is characterized in that the crucible electrical resistance furnace
For high purity graphite crucible, and covered using graphite powder.
5. a kind of Material for Pantograph Slide preparation facilities, which is characterized in that described device is used to be sintered the copper forming graphite block,
Described device includes: sintering main body Container (1) and sintering main body (2), and the sintering main body (2) is set to the sintering main body
The top of Container (1), the sintering main body Container (1) are sealing container, and the inside of sintering main body Container (1) is set
It is equipped with partition (11), the inside of sintering main body accommodating cavity device (1) is divided into two independent spaces by the partition (11)
Respectively upper sintering main body accommodating cavity (12) and lower sintering main body accommodating cavity (13), the upper sintering main body accommodating cavity (12) and institute
Lower sintering main body accommodating cavity (13) is stated to be connected by the multiple through-holes (14) being arranged on the partition (11)；
It is provided with sintering vessel accommodating cavity (16) at the top of the sintering main body Container (1), the bottom of sintering main body (2)
It is set to the inside of the sintering vessel accommodating cavity (16), the bottom shape and the sintering vessel of sintering main body (12) hold
The shape for setting chamber (16) matches, and the sintering main body (2) includes sintering ontology (21) and is sintered upper cover (22), in the sintering
Lid (22) is set to the top of sintering ontology (21), and sintering ontology (21) is internally provided with graphite block accommodating cavity
(23), the graphite block accommodating cavity (23) is internally provided with graphite block bearing plate (24), the graphite block bearing plate (24) with
The inner wall of the graphite block accommodating cavity (23) is in contact；
The side wall of sintering ontology (21) is that the side wall of sintering ontology (21) described in hollow form is provided with gas filled cavity
(211), it is provided with aspirating hole (212) at the top of the side wall of sintering ontology (21), the sintering upper cover (22) includes upper cover
Bearing plate (221) is provided with aspiration pump (222) at the top of the upper cover bearing plate (221), the aspiration pump (222) with it is described
The inside of gas filled cavity (211) is connected, and is provided with inflator pump (223) at the top of the upper cover bearing plate (221), described to fill
Air pump (223) is connected with the inside of the graphite block accommodating cavity (23), and the gas filled cavity (211) and the upper sintering are led
Body accommodating cavity (12) is connected.
6. a kind of Material for Pantograph Slide preparation facilities according to claim 5, which is characterized in that the sintering device
Ware accommodating cavity (16) is set as multiple, and the sintering main body (2) is set as multiple, the gas of each sintering main body (2)
Body filled cavity (211) is connected with the gas filled cavity (211) of the adjacent sintering main body (2).
7. a kind of Material for Pantograph Slide preparation facilities according to claim 5, which is characterized in that the graphite block is accepted
Plate (24) is set as multiple.
8. a kind of Material for Pantograph Slide preparation facilities according to claim 5, which is characterized in that the sintering main body is held
Set device (1) cladding having heaters (15).
9. a kind of Material for Pantograph Slide preparation facilities, feature according to claim 5 to 8 any one claim
It is, is coated with thermal insulation material (25) on the side wall of sintering ontology (21).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810756677.6A CN108941576A (en) | 2018-07-11 | 2018-07-11 | A kind of Material for Pantograph Slide preparation method and preparation facilities |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810756677.6A CN108941576A (en) | 2018-07-11 | 2018-07-11 | A kind of Material for Pantograph Slide preparation method and preparation facilities |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110106382A (en) * | 2019-06-26 | 2019-08-09 | 中南大学 | The preparation method of medium Copper-Graphite Composite under water environment with excellent properties of antifriction and wear resistance |
| CN114032411A (en) * | 2021-11-09 | 2022-02-11 | 暨南大学 | C/Cu composite material pantograph slide plate and preparation method thereof |
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| CN101982552A (en) * | 2010-10-21 | 2011-03-02 | 哈尔滨工业大学 | Copper coated graphite and nano-silicon carbide mixed reinforced copper-based composite material and preparation method thereof |
| CN104911382A (en) * | 2015-04-30 | 2015-09-16 | 西南交通大学 | Preparation method of copper based sliding plate material |
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| CN101982552A (en) * | 2010-10-21 | 2011-03-02 | 哈尔滨工业大学 | Copper coated graphite and nano-silicon carbide mixed reinforced copper-based composite material and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110106382A (en) * | 2019-06-26 | 2019-08-09 | 中南大学 | The preparation method of medium Copper-Graphite Composite under water environment with excellent properties of antifriction and wear resistance |
| CN110106382B (en) * | 2019-06-26 | 2020-03-17 | 中南大学 | Preparation method of copper-graphite composite material |
| CN114032411A (en) * | 2021-11-09 | 2022-02-11 | 暨南大学 | C/Cu composite material pantograph slide plate and preparation method thereof |
| CN114032411B (en) * | 2021-11-09 | 2023-01-13 | 暨南大学 | C/Cu composite material pantograph slide plate and preparation method thereof |
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Application publication date: 20181207 |