CN109531448A - A kind of steel matrix extra hard material grinding wheel - Google Patents
A kind of steel matrix extra hard material grinding wheel Download PDFInfo
- Publication number
- CN109531448A CN109531448A CN201910032374.4A CN201910032374A CN109531448A CN 109531448 A CN109531448 A CN 109531448A CN 201910032374 A CN201910032374 A CN 201910032374A CN 109531448 A CN109531448 A CN 109531448A
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- CN
- China
- Prior art keywords
- grinding wheel
- blind hole
- base body
- wheel base
- hard material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 239000000463 material Substances 0.000 title claims abstract description 32
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 30
- 239000010959 steel Substances 0.000 title claims abstract description 30
- 239000011159 matrix material Substances 0.000 title claims abstract description 26
- 208000020442 loss of weight Diseases 0.000 claims abstract description 31
- 238000005476 soldering Methods 0.000 claims abstract description 9
- 239000000758 substrate Substances 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000017525 heat dissipation Effects 0.000 description 4
- 239000004576 sand Substances 0.000 description 4
- 230000035939 shock Effects 0.000 description 4
- 239000004575 stone Substances 0.000 description 3
- 229910052582 BN Inorganic materials 0.000 description 2
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 2
- 229910003460 diamond Inorganic materials 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D5/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
- B24D5/10—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor with cooling provisions, e.g. with radial slots
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D5/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
- B24D5/16—Bushings; Mountings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
The present invention relates to grinding tool devices fields, it include grinding wheel base body more particularly to being a kind of steel matrix extra hard material grinding wheel, centre bore is provided at the grinding wheel base body center, grinding wheel base body outer rim is provided with soldering working lining, grinding wheel loss of weight annular groove is provided between the centre bore and soldering working lining, wherein the tow sides of the grinding wheel base body are respectively arranged with the first blind hole and the second blind hole, first blind hole is located in the positive grinding wheel loss of weight annular groove of grinding wheel base body, and second blind hole is located in the grinding wheel loss of weight annular groove of grinding wheel base body reverse side.It solves existing grinding wheel and exists and radiate undesirable, noise is big when work, there are problems that noise pollution, existing to reduce grinding wheel base body overall weight by blind hole, and improves the rigid and safety in utilization of grinding wheel compared with through-hole.
Description
Technical field
The present invention relates to grinding tool devices fields, and in particular to is a kind of steel matrix extra hard material grinding wheel.
Background technique
Steel matrix extra hard material grinding wheel is widely applied in field of machining, the feature of environmental protection, shape retention, sharp
Property, security performance and service life long feature obtained being widely recognized as industry.But extra hard material grinding wheel is in high-speed rotation process,
Its thermal diffusivity and noise become one group of new contradiction again.
The Chinese patent of Publication No. CN207807472U discloses a kind of grinding wheel with corrugated chip space, and grinding wheel exists
In high-speed rotation, although heat dissipation performance is guaranteed, the noise that when high speed rotation generates is not obtained preferably
It solves.
Summary of the invention
The present invention exists for existing grinding wheel to radiate undesirable, and noise is big when work, there are problems that noise pollution, provides
A kind of steel matrix extra hard material grinding wheel.
The present invention solves above-mentioned technical problem, the technical solution adopted is that, a kind of steel matrix extra hard material grinding wheel includes sand
Matrix is taken turns, is provided with centre bore at grinding wheel base body center, grinding wheel base body outer rim is provided with soldering working lining, centre bore and solderer
Make to be provided with grinding wheel loss of weight annular groove between layer, wherein the tow sides of grinding wheel base body are respectively arranged with the first blind hole and second blind
Hole, the first blind hole are located in the positive grinding wheel loss of weight annular groove of grinding wheel base body, and the grinding wheel that the second blind hole is located at grinding wheel base body reverse side subtracts
In weight annular groove.
The purpose designed in this way is, by the way that the first blind hole and the second blind hole are arranged on grinding wheel base body, can increase sand
Surface of the base body is taken turns, is conducive to heat in grinding wheel high speed rotation and exchanges into air, is convenient for grinding wheel integral heat sink.
Meanwhile the first blind hole and the second blind hole are set in grinding wheel high speed rotation, it is able to drive distinguished and admirable be allowed to and grinding wheel table
Face comes into full contact with, and the heat of grinding wheel is taken away, to realize grinding wheel integral heat sink.
Finally, due to the first blind hole and the second blind hole are not through-hole, it is logical compared with what publication number CN207807472U was provided
Pore structure is upset the wind of grinding wheel two sides by the first blind hole and the rotation of the second blind hole in the high-speed rotating semi enclosed area of grinding wheel
Stream, be allowed to it is a part of it is distinguished and admirable offset, reduce distinguished and admirable impact, the birdie generated when significantly reducing stone.
It solves existing grinding wheel and exists and radiate undesirable, noise is big when work, there are problems that noise pollution.
Preferably, positioned at the positive blind hole of grinding wheel base body and the blind hole for being located at grinding wheel base body reverse side, vertical projection is not overlapped,
Design can greatly improve blind hole overall depth in this way.
Optionally, the first blind hole and the second blind hole are cylindrical structure.
Optionally, the first blind hole and the second blind hole are conical structure.
Optionally, the first blind hole and the second blind hole are conical column structure, and it is cylindrical body that one side is connected to grinding wheel loss of weight annular groove,
Hole bottom is cone.
Further, the first blind hole and the second blind hole are made of upper and lower two cylindrical cavities, and two cylindrical body skies
Chamber center line is overlapped, and it is empty to be greater than the cylindrical body far from grinding wheel loss of weight annular groove close to the diameter of the cylindrical cavity of grinding wheel loss of weight annular groove
The diameter of chamber.
Further, the tow sides of grinding wheel base body are also respectively provided with third blind hole and the 4th blind hole, third blind hole position
In in the positive grinding wheel loss of weight annular groove of grinding wheel base body, and third blind hole is between the first blind hole and centre bore, the 4th blind hole position
In in the grinding wheel loss of weight annular groove of grinding wheel base body reverse side, and the 4th blind hole is between the second blind hole and centre bore.
It optionally, is two or more positioned at the blind hole number of grinding wheel base body single side, and symmetrical along centre bore.
Optionally, grinding wheel base body is steel substrate, and diameter is 100~800mm, with a thickness of 10~280mm.
Optionally, the diameter of centre bore is 16~300mm.
Optionally, the aperture of blind hole is 6~200mm, and depth is 1~278mm, and blind hole herein is refered in particular on grinding wheel base body just
All blind holes of reverse side, and the blind hole aperture on same grinding wheel is consistent, the blind hole aperture on different grinding wheels can be according to specifically making
A variety of settings are carried out with environment.
Optionally, being brazed soldering on working lining has superhard material, and wherein superhard material is diamond or cubic boron nitride.
Beneficial effects of the present invention include at least following one；
1, by the way that the first blind hole and the second blind hole are arranged on grinding wheel base body, grinding wheel base body surface area can be increased, in grinding wheel height
Be conducive to heat when speed rotation to exchange into air, be convenient for grinding wheel integral heat sink.
2, the first blind hole and the second blind hole are set in grinding wheel high speed rotation, is able to drive and distinguished and admirable is allowed to fill with wheel face
Tap touching, the heat of grinding wheel is taken away, to realize grinding wheel integral heat sink.
3, since the first blind hole and the second blind hole are not through-hole, compared with the through-hole knot of publication number CN207807472U offer
Structure is upset the distinguished and admirable of grinding wheel two sides by the first blind hole and the rotation of the second blind hole, is made in the high-speed rotating semi enclosed area of grinding wheel
It is a part of it is distinguished and admirable offset, reduce distinguished and admirable impact, the birdie generated when significantly reducing stone, i.e. grinding wheel
The distinguished and admirable of two sided interferes with each other, and reduces the distinguished and admirable distinguished and admirable shock wave noise generated under shield protection, has buffered two sided
Distinguished and admirable generation shock wave birdie, make grinding wheel operating it is more steady, realize noise-reduction.
4, it solves existing grinding wheel and exists and radiate undesirable, noise is big when work, there are problems that noise pollution.
5 moreover use the structure of blind hole in grinding wheel base body side, compared with through-hole structure to the rigid of grinding wheel base body
It is greatly improved in safety in utilization.
Detailed description of the invention
Fig. 1 is a kind of steel matrix extra hard material grinding wheel structural schematic diagram；
Fig. 2 is another steel matrix extra hard material grinding wheel structural schematic diagram；
Fig. 3 is the third steel matrix extra hard material grinding wheel structural schematic diagram；
Fig. 4 is the 4th kind of steel matrix extra hard material grinding wheel structural schematic diagram；
Fig. 5 is a kind of steel matrix extra hard material grinding wheel positive structure schematic；
Fig. 6 is another steel matrix extra hard material grinding wheel positive structure schematic；
Fig. 7 is the 5th kind of steel matrix extra hard material grinding wheel structural schematic diagram；
In the figure, it is marked as 1 being grinding wheel base body, 2 being center hole, 3 be soldering working lining, 4 be the first blind hole, 5 being the second blind hole, 6
It is third blind hole for grinding wheel loss of weight annular groove, 7,8 is the 4th blind hole.
Specific embodiment
It is clear in order to enable the objectives, technical solutions, and advantages of the present invention to be more clear, below in conjunction with attached drawing and implementation
The present invention will be described in further detail for example.It should be appreciated that specific embodiment described herein is only used to explain this hair
It is bright, it is not intended to limit the present invention protection content.
Embodiment 1
As shown in Figure 1 and Figure 5, a kind of steel matrix extra hard material grinding wheel includes grinding wheel base body 1, and grinding wheel base body is provided at 1 center
Centre bore 2,1 outer rim of grinding wheel base body are provided with soldering working lining 3, are provided with grinding wheel loss of weight between centre bore 2 and soldering working lining 3
Annular groove 6, it is characterised in that: the tow sides of grinding wheel base body 1 are respectively arranged with the first blind hole 4 and the second blind hole 5, the first blind hole 4
In the positive grinding wheel loss of weight annular groove 6 of grinding wheel base body 1, the second blind hole 5 is located at the grinding wheel loss of weight annular groove 6 of 1 reverse side of grinding wheel base body
It is interior.
In use, the first blind hole and the second blind hole are arranged on grinding wheel base body, grinding wheel base body surface area can be increased, in sand
Be conducive to heat when taking turns high speed rotation to exchange into air, be convenient for grinding wheel integral heat sink.First blind hole is set and the second blind hole exists
When grinding wheel high speed rotation, be able to drive it is distinguished and admirable be allowed to come into full contact with wheel face, the heat of grinding wheel is taken away, to realize sand
Take turns integral heat sink.Since the first blind hole and the second blind hole are not through-hole, compared with the through-hole of publication number CN207807472U offer
Structure upsets the distinguished and admirable of grinding wheel two sides by the first blind hole and the rotation of the second blind hole in the high-speed rotating semi enclosed area of grinding wheel,
Be allowed to it is a part of it is distinguished and admirable offset, reduce distinguished and admirable impact, the birdie generated when significantly reducing stone., i.e.,
The distinguished and admirable of grinding wheel two sided interferes with each other, and reduces the distinguished and admirable distinguished and admirable shock wave noise generated under shield protection, has buffered double
The shock wave birdie of the distinguished and admirable generation of side keeps grinding wheel operating more steady, realizes noise-reduction, solves existing grinding wheel in the presence of scattered
Heat is undesirable, and noise is big when work, there are problems that noise pollution.
Embodiment 2
Based on embodiment 1, the first blind hole 4 and the second blind hole 5 are cylindrical structure.
Embodiment 3
Based on embodiment 1, as shown in figure 3, the first blind hole 4 and the second blind hole 5 are conical structure.
The present embodiment improves two groups of blind holes and distinguished and admirable windward side compared with embodiment 2, improves the effect for reducing noise
Fruit.
Embodiment 4
Connected as shown in Fig. 2, the first blind hole 4 and the second blind hole 5 are conical column structure with grinding wheel loss of weight annular groove 6 based on embodiment 1
Logical one side is cylindrical body, and hole bottom is cone.
The present embodiment improves two groups of blind holes and distinguished and admirable windward side, improves reduction compared with embodiment 2 and embodiment 3
The effect of noise.
Embodiment 5
Based on embodiment 1, as shown in fig. 7, the first blind hole 4 and the second blind hole 5 are made of upper and lower two cylindrical cavities, and two
A cylindrical cavity center line is overlapped, and the diameter close to the cylindrical cavity of grinding wheel loss of weight annular groove 6 is greater than far from grinding wheel loss of weight ring
The diameter of the cylindrical cavity of slot 6.
Embodiment 6
Based on embodiment 1, as shown in Figure 4 and Figure 6, the tow sides of grinding wheel base body 1 are also respectively provided with third blind hole 7 and the 4th
Blind hole 8, third blind hole 7 is located in the positive grinding wheel loss of weight annular groove 6 of grinding wheel base body 1, and third blind hole 7 is located at 4 He of the first blind hole
Between centre bore 2, the 4th blind hole 8 is located in the grinding wheel loss of weight annular groove 6 of 1 reverse side of grinding wheel base body, and the 4th blind hole 8 is blind positioned at second
Between hole 5 and centre bore 2, wherein grinding wheel base body 1 is steel substrate, diameter 100mm, with a thickness of 10mm, the diameter of centre bore 2
For 16mm, the first blind hole 4, the second blind hole 5, third blind hole 7 and the 4th blind hole 8 aperture be 6mm, depth 1mm.
In the present embodiment, the first blind hole, the second blind hole, third blind hole and the 4th are provided on grinding wheel according to actual needs
Blind hole, greatly improved integral heat sink and noise reduction effect, and staff can be arranged multiple groups according to the size of specific grinding wheel and be used for
The blind hole of heat dissipation noise reduction.
Embodiment 7
Based on embodiment 1, the tow sides of grinding wheel base body 1 are also respectively provided with third blind hole 7 and the 4th blind hole 8, third blind hole 7
In the positive grinding wheel loss of weight annular groove 6 of grinding wheel base body 1, and third blind hole 7 is between the first blind hole 4 and centre bore 2, and the 4th
Blind hole 8 is located in the grinding wheel loss of weight annular groove 6 of 1 reverse side of grinding wheel base body, and the 4th blind hole 8 be located at the second blind hole 5 and centre bore 2 it
Between, wherein grinding wheel base body 1 is steel substrate, diameter 800mm, and with a thickness of 280mm, the diameter of centre bore 2 is 300mm, first
Blind hole 4, the second blind hole 5, third blind hole 7 and the 4th blind hole 8 aperture be 200mm, depth 278mm, be brazed pricker on working lining
It is welded with superhard material, wherein superhard material is cubic boron nitride.
In the present embodiment, the first blind hole, the second blind hole, third blind hole and the 4th are provided on grinding wheel according to actual needs
Blind hole, greatly improved integral heat sink and noise reduction effect, and staff can be arranged multiple groups according to the size of specific grinding wheel and be used for
The blind hole of heat dissipation noise reduction.
Embodiment 8
Based on embodiment 1, the tow sides of grinding wheel base body 1 are also respectively provided with third blind hole 7 and the 4th blind hole 8, third blind hole 7
In the positive grinding wheel loss of weight annular groove 6 of grinding wheel base body 1, and third blind hole 7 is between the first blind hole 4 and centre bore 2, and the 4th
Blind hole 8 is located in the grinding wheel loss of weight annular groove 6 of 1 reverse side of grinding wheel base body, and the 4th blind hole 8 be located at the second blind hole 5 and centre bore 2 it
Between, wherein grinding wheel base body 1 is steel substrate, diameter 400mm, and with a thickness of 200mm, the diameter of centre bore 2 is 200mm, first
Blind hole 4, the second blind hole 5, third blind hole 7 and the 4th blind hole 8 aperture be 100mm, depth 100mm, be brazed pricker on working lining
It is welded with superhard material, wherein superhard material is diamond.
In the present embodiment, the first blind hole, the second blind hole, third blind hole and the 4th are provided on grinding wheel according to actual needs
Blind hole, greatly improved integral heat sink and noise reduction effect, and staff can be arranged multiple groups according to the size of specific grinding wheel and be used for
The blind hole of heat dissipation noise reduction.
Embodiment 9
Based on embodiment 1, the blind hole number positioned at 1 single side of grinding wheel base body is two or more, and along the concentric circles of centre bore 2
Even distribution.
In the present embodiment, by the way that the blind hole symmetrical with centre bore is arranged in grinding wheel base body single side, so that grinding wheel is whole
Distribution of weight is uniform.
Embodiment 10
Based on embodiment 1, the tow sides of grinding wheel base body 1 are also respectively provided with multiple groups blind hole, and each group of blind hole is along center
It is uniformly distributed on the concentric circles in hole 2, and the blind hole of adjacent sets number is located on the different concentric circles of centre bore 2.
Claims (10)
1. a kind of steel matrix extra hard material grinding wheel, including grinding wheel base body (1), center is provided at grinding wheel base body (1) center
Hole (2), grinding wheel base body (1) outer rim are provided with soldering working lining (3), are arranged between the centre bore (2) and soldering working lining (3)
Have grinding wheel loss of weight annular groove (6), it is characterised in that: the tow sides of the grinding wheel base body (1) be respectively arranged with the first blind hole (4) and
Second blind hole (5), first blind hole (4) are located in the positive grinding wheel loss of weight annular groove (6) of grinding wheel base body (1), and described second is blind
Hole (5) is located in the grinding wheel loss of weight annular groove (6) of grinding wheel base body (1) reverse side.
2. a kind of steel matrix extra hard material grinding wheel according to claim 1, it is characterised in that: first blind hole (4) and
Second blind hole (5) is cylindrical structure.
3. a kind of steel matrix extra hard material grinding wheel according to claim 1, it is characterised in that: first blind hole (4) and
Second blind hole (5) is conical structure.
4. a kind of steel matrix extra hard material grinding wheel according to claim 1, it is characterised in that: first blind hole (4) and
Second blind hole (5) is conical column structure, and it is cylindrical body that one side is connected to grinding wheel loss of weight annular groove (6), and hole bottom is cone.
5. a kind of steel matrix extra hard material grinding wheel according to claim 1, it is characterised in that: first blind hole (4) and
Second blind hole (5) is made of upper and lower two cylindrical cavities, and two cylindrical cavity center lines are overlapped, close to grinding wheel loss of weight
The diameter of the cylindrical cavity of annular groove (6) is greater than the diameter of the cylindrical cavity far from grinding wheel loss of weight annular groove (6).
6. a kind of steel matrix extra hard material grinding wheel according to claim 1, it is characterised in that: the grinding wheel base body (1)
Tow sides are also respectively provided with third blind hole (7) and the 4th blind hole (8), and the third blind hole (7) is being located at grinding wheel base body (1) just
In the grinding wheel loss of weight annular groove (6) in face, and third blind hole (7), between the first blind hole (4) and centre bore (2), the described 4th is blind
Hole (8) is located in the grinding wheel loss of weight annular groove (6) of grinding wheel base body (1) reverse side, and the 4th blind hole (8) be located at the second blind hole (5) and in
Between heart hole (2).
7. a kind of steel matrix extra hard material grinding wheel according to claim 1, it is characterised in that: it is single to be located at grinding wheel base body (1)
The blind hole number in face is two or more, and is uniformly distributed along the concentric circles of centre bore (2).
8. a kind of steel matrix extra hard material grinding wheel according to claim 7, it is characterised in that: the grinding wheel base body (1) is
Steel substrate, diameter is 100~800mm, with a thickness of 10~280mm.
9. a kind of steel matrix extra hard material grinding wheel according to claim 8, it is characterised in that: the centre bore (2) it is straight
Diameter is 16~300mm.
10. a kind of steel matrix extra hard material grinding wheel according to claim 9, it is characterised in that: the aperture of the blind hole is 6
~200mm, depth are 1~278mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910032374.4A CN109531448A (en) | 2019-01-14 | 2019-01-14 | A kind of steel matrix extra hard material grinding wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910032374.4A CN109531448A (en) | 2019-01-14 | 2019-01-14 | A kind of steel matrix extra hard material grinding wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109531448A true CN109531448A (en) | 2019-03-29 |
Family
ID=65835167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910032374.4A Pending CN109531448A (en) | 2019-01-14 | 2019-01-14 | A kind of steel matrix extra hard material grinding wheel |
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| Country | Link |
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| CN (1) | CN109531448A (en) |
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|---|---|---|---|---|
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| JPH11300620A (en) * | 1998-04-21 | 1999-11-02 | Osaka Diamond Ind Co Ltd | Grinding wheel with extra-abrasive grain |
| JP2000045998A (en) * | 1998-07-31 | 2000-02-15 | Tokyo Parts Ind Co Ltd | Fan motor |
| US20060040601A1 (en) * | 2004-08-23 | 2006-02-23 | Baldoni J G | Drum grinding wheel |
| CN201519910U (en) * | 2009-09-11 | 2010-07-07 | 镇江益林金刚石工具有限公司 | Radiating and vibration-attenuating cast aluminum diamond wheel |
| CN203067351U (en) * | 2013-01-21 | 2013-07-17 | 元山科技工业股份有限公司 | Fan blade device of heat-radiating fan with noise reduction effect |
| US20140301860A1 (en) * | 2013-04-09 | 2014-10-09 | MTU Aero Engines AG | Airfoil having a profiled trailing edge for a fluid flow machine, blade, and integrally blade rotor |
| CN204935411U (en) * | 2015-09-06 | 2016-01-06 | 江西省定海砂轮有限公司 | The emery wheel of the easy chip removal of easy heat radiation |
| CN106078541A (en) * | 2016-08-09 | 2016-11-09 | 上海戴屹科技有限公司 | A kind of self cooled abrasive grinding wheel |
| CN209289048U (en) * | 2019-01-14 | 2019-08-23 | 禹州七方超硬材料制品有限公司 | A kind of steel matrix extra hard material grinding wheel |
-
2019
- 2019-01-14 CN CN201910032374.4A patent/CN109531448A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08247093A (en) * | 1995-03-06 | 1996-09-24 | Takasago Thermal Eng Co Ltd | Fan blade of centrifugal blower |
| JPH11300620A (en) * | 1998-04-21 | 1999-11-02 | Osaka Diamond Ind Co Ltd | Grinding wheel with extra-abrasive grain |
| JP2000045998A (en) * | 1998-07-31 | 2000-02-15 | Tokyo Parts Ind Co Ltd | Fan motor |
| US20060040601A1 (en) * | 2004-08-23 | 2006-02-23 | Baldoni J G | Drum grinding wheel |
| CN201519910U (en) * | 2009-09-11 | 2010-07-07 | 镇江益林金刚石工具有限公司 | Radiating and vibration-attenuating cast aluminum diamond wheel |
| CN203067351U (en) * | 2013-01-21 | 2013-07-17 | 元山科技工业股份有限公司 | Fan blade device of heat-radiating fan with noise reduction effect |
| US20140301860A1 (en) * | 2013-04-09 | 2014-10-09 | MTU Aero Engines AG | Airfoil having a profiled trailing edge for a fluid flow machine, blade, and integrally blade rotor |
| CN204935411U (en) * | 2015-09-06 | 2016-01-06 | 江西省定海砂轮有限公司 | The emery wheel of the easy chip removal of easy heat radiation |
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