CN106159623B - A kind of wind-driven generator Special carbon brush and preparation method thereof - Google Patents
A kind of wind-driven generator Special carbon brush and preparation method thereof Download PDFInfo
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- CN106159623B CN106159623B CN201510134097.XA CN201510134097A CN106159623B CN 106159623 B CN106159623 B CN 106159623B CN 201510134097 A CN201510134097 A CN 201510134097A CN 106159623 B CN106159623 B CN 106159623B
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Abstract
The invention discloses a kind of wind-driven generator Special carbon brushs, are made of by mass percentage following composition：45~65% electrolytic copper powders, 15~30% bitumastic cement graphite powders, 15~30% phenolic aldehyde jelly graphite powders, while the preparation method for manufacturing the wind-driven generator Special carbon brush is also disclosed, include the following steps：First prepare bitumastic cement graphite powder, phenolic aldehyde jelly graphite powder, the bitumastic cement graphite powder weighed in proportion, phenolic aldehyde jelly graphite powder and electrolytic copper powder are mixed in the closed state, obtain compound powder, compound powder is subjected to die mould again, form primary carbon brush, it is heat-treated again by clamping pot, forms carbon brush product.The carbon brush service life of the present invention is long, and surface energy forms oxidation film, reduces abrasion, while also having good conflux performance, and resistance coefficient is low, and energy loss is small, and preparation method is simple, economical, is easy to large-scale mass production.
Description
Technical field
The invention belongs to carbon brush technical fields, and in particular to a kind of wind-driven generator Special carbon brush and preparation method thereof.
Background technology
Carbon brush (Carbonbrush) be also brush, as a kind of slide contact member, is obtained in many electrical equipments extensively
Application.Carbon brush mainly has graphite in products application material, soaks fat graphite, metal (cupric, silver) graphite.Carbon brush be motor or
The device of energy or signal is transmitted between generator or the fixed part and rotating part of other rotating machineries, it is usually pure carbon
Coagulator is added to be made, external form is usually square, is stuck on metallic support, and there is spring handle in the inside, and it is pressed in shaft, and motor turns
When dynamic, electric energy is conveyed to coil by phase changer, since its main component is carbon, referred to as carbon brush.Due to the master of carbon brush
It is carbon to want ingredient, this also determines that the wearability of carbon brush is poor, therefore people are generally improved by the way that composite material raising is added
Its wearability.Wherein, have improves its whole wearability by the way that pitch, macromolecule resin or other metals etc. are added, such as specially
Profit number discloses one kind by mixing graphite powder for CN201010502703.6, and the automobile engine of copper powder, two selenizing niobiums composition opens
Dynamic carbon brush for electric machine, the resin modified asphalt is as binder, the advantages of having had both two kinds of binders of resin and pitch, both improves
The intensity of carbon brush does not make carbon brush really up to the mark again, and it is lubricant to have used two selenizing niobiums, efficiently solves carbon brush lubrication problem.Although should
Patent is embodied by bulk density, Rockwell hardness, contact drop, friction coefficient to the wearability of carbon brush and other performances
Improve, but its wearability in true environment is not intuitively embodied by experiment, simultaneously for being exposed to severe ring for a long time
For the carbon brush of the wind-driven generator in border, wearability also needs to further increase, and to avoid the frequent replacement of carbon brush, improves carbon brush
Service life.
Invention content
It is an object of the invention to overcome the defect of the prior art, provide it is a kind of it is wear-resisting, resistance coefficient is low, energy consumption is small,
Noise is small, and assembles reliable and stable wind-driven generator Special carbon brush, while additionally providing a kind of method preparing the carbon brush.
The technical scheme is that：
A kind of wind-driven generator Special carbon brush is made of by mass percentage following composition：
Electrolytic copper powder 45~65%
Bitumastic cement graphite powder 15~30%
Phenolic aldehyde jelly graphite powder 15~30%
Wherein, the bitumastic cement graphite powder by 1 mass parts graphite powder, account for graphite quality 15-35% pitch and
The clear water for accounting for graphite quality 10~15% heated mixes；The phenolic aldehyde jelly graphite powder by 1 mass parts graphite powder and
It accounts for the phenol resin solution of graphite quality 30~40% to form through cold mixing heat is mixed, wherein the solid of phenol resin solution is
35%.
The preparation process of the bitumastic cement graphite powder is as follows：
It smashs to pieces：It is hammered into shape with tablet and smash pitch to evenly sized to pieces；
Heating mixes：1 mass parts graphite powder needed for weighing respectively accounts for the pitch of graphite quality 15~35% and accounts for graphite
The clear water of quality 10~15%.Load weighted electrical carbon graphite powder, pitch, clear water are sequentially added and mixed in pot, is being sequentially added
During constantly stir, add pot cover, carry out heating mixing.The temperature that control mixes pendulum machine is in 150~200
DEG C, it first closes and covers heating mixing 90~120 minutes, mixing has a large amount of water vapours to flow out after sixty minutes, when water vapour reduction, gas face
Color has Huang slightly, and shutdown, which is uncapped, measures feed powder temperature, as feed powder temperature t<It 175 DEG C, still needs to heating and closes lid and continue to mix, work as feed powder
175 DEG C of temperature<t<185 DEG C, continue to heat and close lid mixing 15 minutes, stopping heating, which continues to close to cover, to be mixed 30~60 minutes, shutdown
Discharging, the mixing feed powder of heating are placed in iron sheet case, it is allowed freely to cool down.
Milling：Start flour mill, feed powder will be mixed and be milled by charge door addition, in discharge port setting Φ 0.5mm
Iron sheet sieve is tentatively sieved, and coarse fodder powder is obtained.
Sieving：So that coarse fodder powder is passed through the cage sieving machine with 80 mesh screens, be further sieved, to can be used
Bitumastic cement graphite powder.
The preparation process of the phenolic aldehyde jelly graphite powder is as follows：
It mixes：1 mass parts graphite powder needed for weighing respectively, the phenol resin solution for accounting for graphite quality 30~40% and successively
Be added in mixing machine, after abundant mix, in the case that it is closed it is cold mix 20~50 minutes, be then 60-90 in temperature
It is mixed in the case of DEG C 60 minutes, then continues heating under non-closed state again and mix 30~45 minutes shutdown survey material, work as temperature
Degree reaches 75~80 DEG C, stops heating, continues mixing and discharges for 10~20 minutes, obtains mixing feed powder.
Roller sheet：Feed powder will be mixed by flaking machine and carries out roller sheet, and the tablet rolled is placed in ventilation natural cooling.It is cold
But dry 2 hour, taking-up cooled to room temperature is placed in baking oven after again.
Milling：The roller sheet of drying is put into flour mill to be milled, and the sieve for making it through 80 mesh is sieved, finally
Obtain available phenolic aldehyde jelly graphite powder.
A kind of preparation method of the wind-driven generator Special carbon brush, includes the following steps：
It mixes：First bitumastic cement graphite powder, phenolic aldehyde jelly graphite powder and electrolytic copper powder are sieved by 50 mesh sieve,
It weighs required bitumastic cement graphite powder, phenolic aldehyde jelly graphite powder and electrolytic copper powder in proportion again and adds it to mixing machine
It is interior, it mixes 100~200 minutes in the closed state, shuts down discharging, obtain compound powder.
Die mould：Compound powder is subjected to die mould in the case where pressure is ± 10% states of 120MPa, forms primary carbon brush.
Heat treatment：It is first burnt in crucible bottom layer overlay sand, primary carbon brush is placed on sand coke and is not contacted each other, after being paved with
It can up be superimposed, and be isolated by sand coke as needed, then jolt ramming again, cover iron plate, and obturage by refractory wass, then
It installs one layer of sodium silicate refractory wass of crucible surface brushing of primary carbon brush and dries.Again by crucible as temperature be 600~
It is sintered in 1000 DEG C of stove, sintering time is 25-35 hours.Crucible is hauled out after the completion of sintering, cooled to room temperature,
To obtain carbon brush.Burnt 20 mesh of all crossing of filler sand are sieved, body refuse reuse is removed.
Beneficial effects of the present invention：
1,50 hours attrition values of carbon brush of the invention are much smaller than the 0.13~0.21 of import carbon brush, while import carbon brush exists
Wind park day can generally be run 6~9 months, and the carbon brush of the present invention can reach 2 years or more in the highest service life of sound of the wind, from
And greatly reduce the operation expense of wind power plant.
2, carbon brush of the invention can form one layer of oxidation film that is uniform, appropriate and stablizing in current collection ring surface, so as to
To play the role of lubrication, the excessive wear of carbon brush is avoided；
3, carbon brush current density 18A/cm of the invention2, there is good conflux performance, resistance coefficient is low, and energy loss is small,
It is not overheated when its operation simultaneously, noise is small, assembly is reliable, not damaged；
4, simple, economic, the mechanical operation of the technological process of proposition of the invention, is easy to large-scale mass production.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts all other
Embodiment shall fall within the protection scope of the present invention.
The preparation of the bitumastic cement graphite powder used in the present embodiment：
30kg electrical carbon graphite powders are poured into heating to mix in pendulum machine mixing pot, start double paddles, under the conditions of non-stop-machine,
The pitch that 5.4kg is smashed to pieces is equably spilled into pot, and the clear water of 3.3kg is then added, covers pot cover, and begin to warm up, is added
Heat mixes.The control temperature of the temperature control instrument of mixed pendulum machine is adjusted to 150~200 DEG C.Lid heating is closed to mix 90~120 minutes,
Mixing has a large amount of water vapours to flow out after sixty minutes, when water vapour is reduced, gas color has Huang slightly, and shutdown, which is uncapped, measures feed powder
Temperature, as feed powder temperature t<It 175 DEG C, still needs to heating and closes lid and continue to mix, when 175 DEG C of feed powder temperature<t<185℃.Continue to heat
It closes lid to mix 15 minutes, stopping heating, which continues to close to cover, to be mixed 30~60 minutes, is shut down and is discharged, if feed powder temperature t>185 DEG C, immediately
Stop heating, total mixing time should control by 180 minutes.It is placed in natural cooling in iron sheet case after heating mixing.
Then flour mill is cleaned up, loads onto the iron sheet sieve that sieve diameter is 0.5mm, confirms inside flour mill without barrier
Object tightens discharging sack, starts to start, and waits for that machine works well, and then with small spades, by feed powder, slowly charge door is milled,
Until discharging airbag is filled, shutdown unlocks discharging sack and discharges to being sieved in iron sheet case.
Cage sieving machine is cleaned up first, 80 mesh screens is loaded onto, machines, the feed powder for having ground suction is scooped up with a dustpan with iron sheet
Dustpan is poured on the compass screen surface vibrated, is sieved, and thick chieftain's brush is therewith levigate to return multiple progress in without levigate feed powder
Repeatedly, until all being sieved by 80 mesh.It is then charged into polybag, is sealed spare.
The preparation of the phenolic aldehyde jelly graphite powder used in the present embodiment：
First, double slurries in the load weighted 30kg graphite powders mixing machine of falling 100L, are started, then in non-stop-machine condition
Under, by the solid of prepared 10kg be 35% phenol resin solution be slowly spilled into mixing machine, close lid it is cold mix 20~
50 minutes, open electric heating, temperature control only controlled 60~90 DEG C, continues to close lid and mixes 60 minutes, pot cover open one 3~
The fine crack of 5cm continues heating and mixes 30~45 minutes, shuts down and measure feed powder temperature, when 75~80 DEG C of feed powder temperature arrival, closes
Electric heating, then mix 10~20 minutes and discharge；Then, feed powder will be mixed by flaking machine and carries out roller sheet, flaking machine roll is preheated to
50~60 DEG C, three times, piece is thick for roller sheet<Tablet is placed on iron sheet case and is built in ventilation natural cooling, will set again after cooling by 1mm
In drying 2 hours in baking oven, temperature is controlled at 90 DEG C, is drawn off cooled to room temperature after the completion；Followed by what will be dried
Roller sheet is put into 300 flour mills of Φ, and the iron sheet sieve in 0.5 holes Φ is loaded onto in flour mill, shuts gate, tightens discharging sack, starts
Machine is milled, and further, the powder of milled is sieved by the cage vibrating screen equipped with 80 mesh nets, loaded on modeling after sieving
Material bag interior sealing preserves.
Below will by detailed example further the present invention will be described.
Embodiment 1：
Electrolytic copper powder 22.5kg
Bitumastic cement graphite powder 15kg
Phenolic aldehyde jelly graphite powder 12.5kg
It mixes：First bitumastic cement graphite powder, phenolic aldehyde jelly graphite powder and electrolytic copper powder are sieved by 50 mesh sieve,
Claim 22.5kg bitumastic cements graphite powders, 15kg phenolic aldehyde jelly graphite powders with, 12.5kg electrolytic copper powders respectively again, and it is added together
Enter into mixing machine, mix 100~200 minutes in the closed state, shut down discharging, obtains compound powder.
Die mould：Feed powder will be mixed in the case where pressure is ± 10% states of 120MPa and carries out die mould, form primary carbon brush.
Heat treatment：It is first burnt in crucible bottom layer overlay sand, primary carbon brush is placed on sand coke and is not contacted each other, after being paved with
It can up be superimposed, and be isolated by sand coke as needed, then jolt ramming again, cover iron plate, and obturage by refractory wass, then
It installs one layer of sodium silicate refractory wass of crucible surface brushing of primary carbon brush and dries.Again by crucible as temperature be 600~
It is sintered in 1000 DEG C of stove, sintering time is 25~35 hours.Crucible is hauled out after the completion of sintering, naturally cools to room
Temperature, to obtain carbon brush product.Burnt 20 mesh of all crossing of filler sand are sieved, body refuse reuse is removed.
Difference lies in electrolytic copper powder, bitumastic cement graphite powder, phenolic aldehyde jelly stones with embodiment 1 for 2~embodiment of embodiment 5
The variation of ink powder proportioning, and preparation method is same as Example 1, specific ratio is as shown in table 1, and Examples 1 to 5
Test result is satisfied by the numberical range of each project in table 2.
Table 1
Table 2
Claims (7)
1. a kind of wind-driven generator Special carbon brush, which is characterized in that it is made of by mass percentage following composition：
Electrolytic copper powder 45~65%
Bitumastic cement graphite powder 15~30%
Phenolic aldehyde jelly graphite powder 15~30%；
Wherein, the bitumastic cement graphite powder by 1 mass parts graphite powder, account for the pitch of graphite quality 15~35% and account for graphite
The clear water of quality 10~15% is heated to be mixed；The phenolic aldehyde jelly graphite powder is by 1 mass parts graphite powder and accounts for graphite
The phenol resin solution of quality 30~40% is formed through cold mixing heat is mixed, wherein the solid of phenol resin solution is 35%.
2. wind-driven generator Special carbon brush according to claim 1, which is characterized in that the bitumastic cement graphite powder system
It is standby that steps are as follows：
It smashs to pieces：It is hammered into shape with tablet and smash pitch to evenly sized to pieces；
Heating mixes：1 mass parts graphite powder needed for weighing respectively accounts for the pitch of graphite quality 15~35% and accounts for graphite quality
10~15% clear water；Load weighted electrical carbon graphite powder, pitch, clear water are sequentially added and mixed in pot, in the mistake sequentially added
It is constantly stirred in journey, adds pot cover, carry out heating mixing；The temperature that control mixes pendulum machine is in 150~200 DEG C, first
It closes lid heating to mix 90~120 minutes, mixing has a large amount of water vapours to flow out after sixty minutes, and when water vapour is reduced, gas color has
Slightly yellow, shutdown, which is uncapped, measures feed powder temperature, as feed powder temperature t<It 175 DEG C, still needs to heating and closes lid and continue to mix, when feed powder temperature
175℃<t<185 DEG C, continuing to heat and close lid mixing 15 minutes, stopping heating, which continues to close to cover, to be mixed 30~60 minutes, and shutdown discharges,
The mixing feed powder of heating is placed in iron sheet case, it is allowed freely to cool down；
Milling：Start flour mill, feed powder will be mixed and be milled by charge door addition, Φ 0.5mm iron sheets are set in discharge port
Sieve is tentatively sieved, and coarse fodder powder is obtained；
Sieving：So that coarse fodder powder is passed through the cage sieving machine with 80 mesh screens, be further sieved, to obtain available drip
Green jelly graphite powder.
3. wind-driven generator Special carbon brush according to claim 1, which is characterized in that the phenolic aldehyde jelly graphite powder
Preparation process is as follows：
It mixes：1 mass parts graphite powder needed for weighing respectively accounts for the phenol resin solution of graphite quality 30~40% and sequentially adds
Into mixing machine, after abundant mix, in the case that it is closed it is cold mix 20~50 minutes, be then 60-90 DEG C in temperature
In the case of mix 60 minutes, then continue heating under non-closed state again and mix to shut down for 30~45 minutes to survey material, when temperature arrives
Up to 75~80 DEG C, stop heating, continues mixing and discharge for 10~20 minutes, obtain mixing feed powder；
Roller sheet：Feed powder will be mixed by flaking machine and carries out roller sheet, and the tablet rolled is placed in ventilation natural cooling；After cooling
Dry 2 hour, taking-up cooled to room temperature is placed in baking oven again；
Milling：The roller sheet of drying is put into flour mill to be milled, and the sieve for making it through 80 mesh is sieved, and finally obtains
Available phenolic aldehyde jelly graphite powder.
4. a kind of preparation method of wind-driven generator Special carbon brush according to any one of claims 1 to 3, feature exist
In including the following steps：
It mixes：First bitumastic cement graphite powder, phenolic aldehyde jelly graphite powder and electrolytic copper powder are sieved, then weighed in proportion
Bitumastic cement graphite powder, phenolic aldehyde jelly graphite powder and electrolytic copper powder after sieve simultaneously add it in mixing machine, mix and complete
Discharging is shut down afterwards, obtains compound powder；
Die mould：Compound powder is subjected to die mould, forms primary carbon brush；
Heat treatment：Primary carbon brush is placed in crucible and is sintered in the stove that temperature is 600~1000 DEG C, carbon brush is obtained.
5. the preparation method of wind-driven generator Special carbon brush according to claim 4, which is characterized in that mix object in step
Material mixes 100~200 minutes in mixing machine inner sealing.
6. the preparation method of wind-driven generator Special carbon brush according to claim 4, which is characterized in that the pressure of die mould step
Power is 110MPa~130MPa.
7. the preparation method of wind-driven generator Special carbon brush according to claim 4, which is characterized in that the specific step of heat treatment
Suddenly it is：It is first burnt in crucible bottom layer overlay sand, primary carbon brush is placed on sand coke and is not contacted each other, it can be as needed after being paved with
It is up superimposed, and is isolated by sand coke, then jolt ramming again, cover iron plate, and obturage by refractory wass, then installing primary carbon
One layer of sodium silicate refractory wass of crucible surface brushing of brush simultaneously dries, then crucible is placed in the stove that temperature is 600~1000 DEG C
It is sintered, sintering time is 25~35 hours；Crucible is hauled out after the completion of sintering, cooled to room temperature, to obtain most
Whole carbon brush.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410854022 | 2014-12-31 | ||
| CN2014108540224 | 2014-12-31 |
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| CN106159623B true CN106159623B (en) | 2018-10-09 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018135162A1 (en) * | 2017-01-19 | 2018-07-26 | トライス株式会社 | Copper graphite brush |
| CN108455987B (en) * | 2018-04-03 | 2021-05-07 | 江苏神州碳制品有限公司 | Carbon brush for wind driven generator and manufacturing method thereof |
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| CN1296321A (en) * | 2000-11-28 | 2001-05-23 | 上海交通大学 | Slide contact electric element having adhesive agent and making technology thereof |
| CN1796334A (en) * | 2004-12-27 | 2006-07-05 | 陈瑾惠 | Carbon/Carbon Composite material and mfg. method thereof |
| CN101656385A (en) * | 2009-10-20 | 2010-02-24 | 丽水市长新电器制造有限公司 | Ultra-abrasion resistant multifunctional nano carbon brush and preparation method thereof |
| CN101847816A (en) * | 2009-03-26 | 2010-09-29 | 苏州东南碳制品有限公司 | Wind driven power generation and transmission conductor powder metallurgy structural part and manufacturing method thereof |
| CN102916318A (en) * | 2012-10-30 | 2013-02-06 | 江苏华宇碳素有限公司 | Carbon brush of motor of drum washing machine and method for manufacturing carbon brush |
| CN103965828A (en) * | 2014-05-16 | 2014-08-06 | 成都蓉光炭素股份有限公司 | Graphite adhesive and preparation method thereof |
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2015
- 2015-03-25 CN CN201510134097.XA patent/CN106159623B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1296321A (en) * | 2000-11-28 | 2001-05-23 | 上海交通大学 | Slide contact electric element having adhesive agent and making technology thereof |
| CN1796334A (en) * | 2004-12-27 | 2006-07-05 | 陈瑾惠 | Carbon/Carbon Composite material and mfg. method thereof |
| CN101847816A (en) * | 2009-03-26 | 2010-09-29 | 苏州东南碳制品有限公司 | Wind driven power generation and transmission conductor powder metallurgy structural part and manufacturing method thereof |
| CN101656385A (en) * | 2009-10-20 | 2010-02-24 | 丽水市长新电器制造有限公司 | Ultra-abrasion resistant multifunctional nano carbon brush and preparation method thereof |
| CN102916318A (en) * | 2012-10-30 | 2013-02-06 | 江苏华宇碳素有限公司 | Carbon brush of motor of drum washing machine and method for manufacturing carbon brush |
| CN103965828A (en) * | 2014-05-16 | 2014-08-06 | 成都蓉光炭素股份有限公司 | Graphite adhesive and preparation method thereof |
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