CN107020382B - Complex sintered wearing plate, preparation method and Special agitating mixing device - Google Patents
Complex sintered wearing plate, preparation method and Special agitating mixing device Download PDFInfo
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- CN107020382B CN107020382B CN201710365434.5A CN201710365434A CN107020382B CN 107020382 B CN107020382 B CN 107020382B CN 201710365434 A CN201710365434 A CN 201710365434A CN 107020382 B CN107020382 B CN 107020382B
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- 238000002156 mixing Methods 0.000 title claims abstract description 113
- 238000002360 preparation method Methods 0.000 title abstract description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 103
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 75
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 74
- 239000000843 powder Substances 0.000 claims abstract description 67
- 239000000758 substrate Substances 0.000 claims abstract description 35
- 230000007246 mechanism Effects 0.000 claims abstract description 10
- 238000003756 stirring Methods 0.000 claims description 59
- 238000005245 sintering Methods 0.000 claims description 28
- 238000000034 method Methods 0.000 claims description 15
- 239000011812 mixed powder Substances 0.000 claims description 9
- 238000009826 distribution Methods 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 5
- 230000005484 gravity Effects 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims 1
- 230000001050 lubricating effect Effects 0.000 abstract description 3
- 229910002804 graphite Inorganic materials 0.000 abstract description 2
- 239000010439 graphite Substances 0.000 abstract description 2
- -1 graphite alkene Chemical class 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 150000001336 alkenes Chemical class 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000004482 other powder Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000001914 calming effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000004575 stone 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
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/02—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite layers
- B22F7/04—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite layers with one or more layers not made from powder, e.g. made from solid metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
- B01F27/90—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with paddles or arms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/40—Mixers using gas or liquid agitation, e.g. with air supply tubes
- B01F33/402—Mixers using gas or liquid agitation, e.g. with air supply tubes comprising supplementary stirring elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/40—Mixers using gas or liquid agitation, e.g. with air supply tubes
- B01F33/406—Mixers using gas or liquid agitation, e.g. with air supply tubes in receptacles with gas supply only at the bottom
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/70—Mixers specially adapted for working at sub- or super-atmospheric pressure, e.g. combined with de-foaming
- B01F33/71—Mixers specially adapted for working at sub- or super-atmospheric pressure, e.g. combined with de-foaming working at super-atmospheric pressure, e.g. in pressurised vessels
-
- B22F1/0003—
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
- B01F2101/26—Mixing ingredients for casting metals
Abstract
The invention belongs to complex sintered wearing plate and preparation method technical field, a kind of complex sintered wearing plate, preparation method and Special agitating mixing device are disclosed.It is mainly characterized in that including substrate, the substrate side is provided with rough surface, copper powder layer is provided on the outside of the rough surface, the copper powder layer lateral surface is provided with graphene copper powder mixed layer, the Graphene powder and copper powder weight ratio are 1-2:100, the Graphene powder and the granular size of copper powder are 200 --- 300 mesh, in this way, graphene copper powder mixed layer is stronger in conjunction with substrate, the content of graphene is high, high lubricating effect, the products coefficient of friction such as manufactured bearing is low, substantially prolong service life, in admixed graphite alkene powder and copper powder, first mixing tank is evacuated, then high pressure gas is blown into mixing pot bottom, and open rabbling mechanism, in this way, mixing is more uniform, it can effectively improve Graphene powder content, improve the wear-resisting property of complex sintered wearing plate.
Description
Technical field
The invention belongs to complex sintered wearing plate, process equipment and preparation method technical field, more particularly to one kind are compound
Sintered wear-resistant plate, preparation method and Special agitating mixing device.
Background technique
In fields such as motor-driven bearings, in order to improve the wear resistance, using sintered wear-resistant plate, one layer of sintering is resistance on the steel plate
The copper powder of mill or other powder, armor plate strength and impact resistance are stronger, and copper powder or other powder wear-resisting properties are good, therefore its
Comprehensive performance greatly improves.In order to improve the wear resistance, using adding Graphene powder in copper powder.Due to copper powder and Graphene powder
Density it is different, mixed using current blender, mixing is uneven when copper powder and Graphene powder being caused to mix, the sintering of production
Wearing plate wear-resisting property is unstable, and the bearing friction coefficient of production is different, and copper powder and Graphene powder are easy to fall off, product matter
It is poor to measure, and the content of graphene is low, does not have fine lubricant effect, and coefficient of friction is high, and service life is short.
Summary of the invention
The invention solves first technical problem be just to provide a kind of good wear-resisting property, copper powder and Graphene powder and do not allow
Easy to fall off, high lubricating effect, complex sintered wearing plate with long service life.
To solve the above problems, the technical solution that the complex sintered wearing plate of the present invention uses are as follows: including substrate, in the base
Plate side is provided with rough surface, and copper powder layer is provided on the outside of the rough surface, and the copper powder layer lateral surface is provided with graphite
Alkene copper powder mixed layer, the Graphene powder and copper powder weight ratio are 1-2:100, the granular size of the Graphene powder and copper powder
It is 200 --- 300 mesh.
Its additional technical feature are as follows:
The Graphene powder and copper powder weight ratio are 1.7-1.8:100, and the granular size of the Graphene powder and copper powder is
270 --- 280 mesh.
Complex sintered wearing plate provided by the present invention compared with prior art, has the advantage that first, due to including
Substrate is provided with rough surface in the substrate side, copper powder layer is provided on the outside of the rough surface, on the outside of the copper powder layer
Face is provided with graphene copper powder mixed layer, and the Graphene powder and copper powder weight ratio are 1-2:100, the Graphene powder and copper
The granular size of powder is 200 --- 300 mesh, in this way, graphene copper powder mixed layer is stronger in conjunction with substrate, graphene contains
Amount is high, and high lubricating effect, the products coefficient of friction such as manufactured bearing is low, substantially prolongs service life；Second, due to the stone
Black alkene powder and copper powder weight ratio are 1.7-1.8:100, and the granular size of the Graphene powder and copper powder is 270 --- 280 mesh,
The coefficient of friction of complex sintered wearing plate provided by the present invention than existing complex sintered wearing plate coefficient of friction reduce half with
On.
The invention solves second technical problem be just to provide during a kind of above-mentioned complex sintered wearing plate of production
Stir mixing device.
To solve the above problems, the technical solution that stir mixing device of the present invention uses are as follows: including frame body and mixing tank, In
The external uniform air distribution plate being connected to inflation mechanism is provided with below the mixing tank, be provided on the uniform air distribution plate into
Stomata is being provided with agitating shaft close to the mixing tank top, stirring wing is provided on the agitating shaft, the bottom
Stirring wing lower end surface is provided with feed opening and exhaust above the mixing tank apart from described 20-30 centimetres of mixing pot bottom
Mouthful, discharge port is provided with below the mixing tank.
Its additional technical feature are as follows:
The exhaust outlet is connect with vacuum evacuation device.
Stir mixing device provided by the present invention compared with prior art, has the advantage that first, due to including frame
Body and mixing tank are provided with the external uniform air distribution plate being connected to inflation mechanism, in the uniform cloth below the mixing tank
It is provided with air inlet on gas plate, the mixing tank top is being provided with agitating shaft, stirring is provided on the agitating shaft
Wing, the stirring wing lower end surface of the bottom are arranged above the mixing tank apart from described 20-30 centimetres of mixing pot bottom
Have feed opening and exhaust outlet, Graphene powder and copper powder be added in the mixing tank of stir mixing device, pave rear Graphene powder and
The distance of stirring wing lower end surface of the upper surface of copper powder apart from bottom is more than or equal to 5 centimetres, and high pressure gas is filled with into mixing tank
Graphene powder and copper powder are blown afloat from mixing pot bottom, are suspended in mixing tank, while opening stirring shaft and stirring by body, high pressure gas
It mixes, stirring wing stirs evenly Graphene powder and copper powder, as the air pressure inside mixing tank increases, the pressure in mixing tank
With when gas pressure intensity is equal in inflation mechanism, stop gas supply, stops stirring, Graphene powder and copper powder after 2-3 minutes and make in gravity
It is fallen under, slowly opens exhaust outlet, the gas in mixing tank is discharged, Graphene powder and copper powder mixing are more uniform；It improves
Complex sintered wearing plate overall wear resistance energy；Second, since the exhaust outlet is connect with the vacuum evacuation device, in institute
It states in first step mixing step, after by the mixing tank of Graphene powder and copper powder addition stir mixing device, opens and be vented
Mixing tank, is first evacuated, is then filled with high pressure gas into mixing tank again by the vacuum evacuation device of mouth connection, in this way, taking out true
Pressure reduction after sky, above Graphene powder and copper powder, it is easy to be blown afloat, mixing is more uniform.
The invention solves third technical problem be just to provide the preparation method of above-mentioned complex sintered wearing plate a kind of.
To solve the above problems, the technical solution that the complex sintered wearing plate of the present invention uses are as follows: this method includes following step
It is rapid:
The first step, mixing
Graphene powder and copper powder are added in the mixing tank of stir mixing device, the upper table of rear Graphene powder and copper powder is paved
It is more than or equal to 5 centimetres with a distance from stirring wing lower end surface of the identity distance from bottom, high pressure gas, high pressure gas is filled with into mixing tank
Graphene powder and copper powder are blown afloat from mixing pot bottom, are suspended in mixing tank, while opening stirring shaft stirring, stirring wing will
Graphene powder and copper powder stir evenly, as the air pressure inside mixing tank increases, the pressure and inflation mechanism in mixing tank
When middle gas pressure intensity is equal, stop gas supply, stops stirring after 2-3 minute, Graphene powder and copper powder are fallen under the effect of gravity, slowly
It is slow to open exhaust outlet, the gas in mixing tank is discharged；Mixed mixed powder is taken out from the discharge port of mixing tank standby
With；
Second step processes substrate
According to required dimensioned substrate, and substrate side is processed into rough surface；
Third step is laid with copper powder
Copper powder is laid with above the rough surface；
4th step makes copper powder substrate
The substrate for being covered with copper powder is placed in sintering furnace and is sintered, sintering temperature is controlled at 800 DEG C -900 DEG C, sintering
Between control at 25-35 minute, after the completion of sintering, cooling 25-35 minutes, copper powder substrate is made；
Mixed powder is routed on copper powder substrate and is sintered cooling by the 5th step
The mixed powder mixed is routed on copper powder substrate, is then placed in sintering furnace and is sintered, sintering temperature control
At 800 DEG C -900 DEG C, sintering time was controlled at 25-35 minutes system, after the completion of sintering, cools down 25-35 minutes, compound burning is made
Tie wearing plate.
Its additional technical feature are as follows: mixed stirring is added in Graphene powder and copper powder in the first step mixing step
After expecting in the mixing tank of device, the vacuum evacuation device being connected to exhaust outlet is opened, first mixing tank is evacuated, then again to mixed
High pressure gas is filled in batch can.
After above method mixing and sintering, since Graphene powder and copper powder are uniformly mixed, contain improving Graphene powder
In the case where amount, Graphene powder and copper powder will not fall off.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the complex sintered wearing plate of the present invention；
Fig. 2 is the structural schematic diagram of stir mixing device.
Specific embodiment
With reference to the accompanying drawings and detailed description the structure to the complex sintered wearing plate of the present invention, stir mixing device and
It is described in further details using the preparation method of principle and above-mentioned complex sintered wearing plate.
As shown in Figure 1, the structural schematic diagram of the complex sintered wearing plate of the present invention, the complex sintered wearing plate of the present invention includes base
Plate 1 is provided with rough surface 2 in 1 side of substrate, the outside of rough surface 2 is provided with copper powder layer 3, sets in the lateral surface of copper powder layer 3
It is equipped with graphene copper powder mixed layer 4, Graphene powder and copper powder weight ratio are 1-2:100, the granular size of Graphene powder and copper powder
It is 200 --- 300 mesh.In this way, graphene copper powder mixed layer 4 is combined stronger, the content height of graphene, lubrication with substrate 1
Effect is good, and the products coefficient of friction such as manufactured bearing is low, substantially prolongs service life.
Graphene powder and copper powder weight ratio are 1.7-1.8:100, and the granular size of Graphene powder and copper powder is 270 ---
The coefficient of friction of 280 mesh, complex sintered wearing plate provided by the present invention is reduced than the coefficient of friction of existing complex sintered wearing plate
More than half.
As shown in Fig. 2, the structural schematic diagram of stir mixing device.Stir mixing device of the present invention includes frame body 5 and mixing
Tank 6 is provided with the external uniform air distribution plate 8 being connected to inflation mechanism 7 below mixing tank 6, is provided on uniform air distribution plate 8
Air inlet 9 is being provided with agitating shaft 10 close to 6 top of mixing tank, stirring wing 11 is being provided on agitating shaft 10, bottom is stirred
Bottom 20-30 centimetre of 11 lower end surface of wing apart from mixing tank 6 is mixed, feed opening 12 and exhaust outlet are provided with above mixing tank 6
13, it is provided with discharge port 14 below mixing tank 6, Graphene powder and copper powder are added in the mixing tank 6 of stir mixing device, paving
The distance of stirring wing lower end surface of the upper surface of Graphene powder and copper powder apart from bottom is more than or equal to 5 centimetres after flat, to mixing
High pressure gas is filled in tank 6, Graphene powder and copper powder are blown afloat from mixing pot bottom, be suspended in mixing tank 6, together by high pressure gas
Shi Kaiqi stirring shaft 10 stirs, and stirring wing 11 stirs evenly Graphene powder and copper powder, with the air pressure inside mixing tank 6
Power increases, and when the pressure in mixing tank 6 is equal with gas pressure intensity in inflation mechanism, stops gas supply, stops stirring after 2-3 minutes,
Graphene powder and copper powder are fallen under the effect of gravity, slowly open exhaust outlet, by mixing tank gas be discharged, Graphene powder and
Copper powder mixing is more uniform；Improve complex sintered wearing plate overall wear resistance energy.
Exhaust outlet 13 is connect with vacuum evacuation device 15, in first step mixing step, is added by Graphene powder and copper powder
After in the mixing tank 6 of stir mixing device, the vacuum evacuation device 14 being connected to exhaust outlet 13 is opened, is first pumped into mixing tank 6 very
Then sky is filled with high pressure gas into mixing tank 6 again, in this way, after vacuumizing, pressure reduction above Graphene powder and copper powder,
It is easy to be blown afloat, mixing is more uniform.
The method for preparing complex sintered wearing plate using above-mentioned stir mixing device, method includes the following steps:
The first step, mixing
Graphene powder and copper powder are added in the mixing tank 6 of stir mixing device 5, pave the upper of rear Graphene powder and copper powder
The distance of 11 lower end surface of stirring wing of surface distance bottom is more than or equal to 5 centimetres, and high pressure gas is filled with into mixing tank 6, high
Body of calming the anger blows afloat Graphene powder and copper powder from 6 bottom of mixing tank, is suspended in mixing tank 6, while opening stirring shaft 10 and stirring
It mixes, stirring wing 11 stirs evenly the Graphene powder that left floating and copper powder, as the air pressure inside mixing tank increases, mixing
When pressure in tank is equal with gas pressure intensity in inflation mechanism, stop gas supply, stops stirring, Graphene powder and copper after 2-3 minutes
Powder is fallen under the effect of gravity, after Graphene powder and copper powder are all fallen, slowly opens exhaust outlet 13, will be in mixing tank 6
Gas discharge；Mixed mixed powder is taken out from the discharge port 14 of mixing tank spare；
Second step processes substrate
According to required dimensioned substrate, and substrate side is processed into rough surface；
Third step is laid with copper powder
Copper powder is laid with above the rough surface；
4th step makes copper powder substrate
The substrate for being covered with copper powder is placed in sintering furnace and is sintered, sintering temperature is controlled at 800 DEG C -900 DEG C, sintering
Between control at 25-35 minute, after the completion of sintering, cooling 25-35 minutes, copper powder substrate is made；
Mixed powder is routed on copper powder substrate and is sintered cooling by the 5th step
The mixed powder mixed is routed on copper powder substrate, is then placed in sintering furnace and is sintered, sintering temperature control
At 800 DEG C -900 DEG C, sintering time was controlled at 25-35 minutes system, after the completion of sintering, cools down 25-35 minutes, compound burning is made
Tie wearing plate.
As a further improvement of the present invention, in first step mixing step, stirring is being added in Graphene powder and copper powder
After in the mixing tank 6 of mixing device, the vacuum evacuation device 15 being connected to exhaust outlet 13 is opened, first mixing tank 6 is evacuated, so
High pressure gas is filled with into mixing tank 6 again afterwards.
After above method mixing and sintering, since Graphene powder and copper powder are uniformly mixed, contain improving Graphene powder
In the case where amount, Graphene powder and copper powder will not fall off.
Protection scope of the present invention is not limited solely to above-described embodiment, as long as structure and the present invention are complex sintered wear-resisting
Plate, stir mixing device structure be same or similar or method is identical as the preparation method of the complex sintered wearing plate of the present invention or
It is similar, just fall in the scope of protection of the invention.
Claims (3)
1. the method for preparing complex sintered wearing plate using stir mixing device, the stir mixing device includes frame body and mixing
Tank, the complex sintered wearing plate includes substrate, and the substrate side is provided with rough surface, is arranged on the outside of the rough surface
There is copper powder layer, the copper powder layer lateral surface is provided with graphene copper powder mixed layer, the Graphene powder and copper powder weight ratio are
The granular size of 1-2:100, the Graphene powder and copper powder is 200-300 mesh, is provided with outside below the mixing tank
The uniform air distribution plate being connected to inflation mechanism is provided with air inlet on the uniform air distribution plate, on the mixing tank
Portion is provided with agitating shaft, stirring wing is provided on the agitating shaft, the stirring wing lower end surface of bottom is apart from described mixed
20-30 centimetres of batch can bottom is provided with feed opening and exhaust outlet above the mixing tank, is arranged below the mixing tank
There is discharge port,
It is characterized by: method includes the following steps:
The first step, mixing
Graphene powder and copper powder are added in the mixing tank of stir mixing device, pave the upper surface of rear Graphene powder and copper powder away from
It is more than or equal to 5 centimetres with a distance from stirring wing lower end surface from bottom, opens the vacuum evacuation device being connected to exhaust outlet, will first mix
Batch can is evacuated, and high pressure gas is filled with into mixing tank, and high pressure gas blows afloat Graphene powder and copper powder from mixing pot bottom,
It is suspended in mixing tank, while opening stirring shaft stirring, stirring wing stirs evenly Graphene powder and copper powder, with mixing tank
Internal air pressure increases, and when the pressure in mixing tank is equal with gas pressure intensity in inflation mechanism, stops supplying, 2-3 minutes
Stop stirring afterwards, Graphene powder and copper powder are fallen under the effect of gravity, slowly open exhaust outlet, and the gas in mixing tank is arranged
Out；Mixed mixed powder is taken out from the discharge port of mixing tank spare；
Second step processes substrate
According to required dimensioned substrate, and substrate side is processed into rough surface；
Third step is laid with copper powder
Copper powder is laid with above the rough surface；
4th step makes copper powder substrate
The substrate for being covered with copper powder is placed in sintering furnace and is sintered, sintering temperature control is at 800 DEG C -900 DEG C, sintering time control
System was at 25-35 minutes, after the completion of sintering, cools down 25-35 minutes, copper powder substrate is made；
Mixed powder is routed on copper powder substrate and is sintered cooling by the 5th step
The mixed powder mixed is routed on copper powder substrate, is then placed in sintering furnace and is sintered, sintering temperature control exists
800 DEG C -900 DEG C, sintering time was controlled at 25-35 minutes, after the completion of sintering, is cooled down 25-35 minutes, is made complex sintered resistance to
Nog plate.
2. the method according to claim 1 for preparing complex sintered wearing plate using stir mixing device, it is characterised in that:
The Graphene powder and copper powder weight ratio are 1.7-1.8:100, and the granular size of the Graphene powder and copper powder is 270-280
Mesh.
3. the method according to claim 1 for preparing complex sintered wearing plate using stir mixing device, it is characterised in that:
The exhaust outlet is connect with vacuum evacuation device.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710365434.5A CN107020382B (en) | 2017-05-22 | 2017-05-22 | Complex sintered wearing plate, preparation method and Special agitating mixing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710365434.5A CN107020382B (en) | 2017-05-22 | 2017-05-22 | Complex sintered wearing plate, preparation method and Special agitating mixing device |
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| Publication Number | Publication Date |
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| CN107020382A CN107020382A (en) | 2017-08-08 |
| CN107020382B true CN107020382B (en) | 2019-12-03 |
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| CN108453262B (en) * | 2018-03-23 | 2021-08-13 | 南通强生石墨烯科技有限公司 | Graphene powder metallurgy oil-retaining bearing and preparation method thereof |
| CN113061775B (en) * | 2021-03-02 | 2022-01-25 | 中国科学院力学研究所 | Plate with copper-based powder metallurgy friction material and preparation method thereof |
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| CN105478518A (en) * | 2014-09-15 | 2016-04-13 | 怀宁汉升车辆部件有限公司 | Production technology of steel-copper bimetal composite material for bearing manufacture |
| CN205253019U (en) * | 2015-12-10 | 2016-05-25 | 吉木萨尔县米克斯建材科技有限公司 | High -performance polycarboxylate water reducer production facility |
| CN205833073U (en) * | 2016-05-10 | 2016-12-28 | 宁德时代新能源科技有限公司 | A kind of powder blending tank |
| CN106591822B (en) * | 2016-11-28 | 2018-10-19 | 广东工业大学 | A kind of graphene strengthens the preparation method and application of copper-based composite coating |
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Inventor after: Cui Minghui Inventor after: Zheng Liming Inventor after: Guo Tong Inventor after: Tian Zhaoshun Inventor after: Du Shichao Inventor before: Cui Minghui Inventor before: Zheng Liming |