CN103521775A - Flaky metal powder grinding device with rib - Google Patents
Flaky metal powder grinding device with rib Download PDFInfo
- Publication number
- CN103521775A CN103521775A CN201310464279.4A CN201310464279A CN103521775A CN 103521775 A CN103521775 A CN 103521775A CN 201310464279 A CN201310464279 A CN 201310464279A CN 103521775 A CN103521775 A CN 103521775A
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- Prior art keywords
- roller
- metal powder
- rib
- powder
- cylinder
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- 239000000843 powder Substances 0.000 title claims abstract description 43
- 239000002184 metal Substances 0.000 title claims abstract description 28
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 28
- 238000007789 sealing Methods 0.000 claims abstract description 11
- 238000005096 rolling process Methods 0.000 claims description 17
- 238000003825 pressing Methods 0.000 claims description 11
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 229910001315 Tool steel Inorganic materials 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 238000010791 quenching Methods 0.000 claims description 3
- 230000000171 quenching effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 9
- 230000005484 gravity Effects 0.000 abstract description 6
- 239000002245 particle Substances 0.000 abstract description 6
- 230000033001 locomotion Effects 0.000 abstract description 3
- 238000003754 machining Methods 0.000 abstract 1
- 239000000428 dust Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000035939 shock Effects 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 238000000498 ball milling Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000006249 magnetic particle Substances 0.000 description 1
- 239000006247 magnetic powder Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000009700 powder processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
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- Powder Metallurgy (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Abstract
The invention discloses a flaky metal powder grinding device with a rib. The flaky metal powder grinding device comprises a roller, a grinding roller is arranged inside the roller, an open end of the roller is provided with a sealing assembly, the grinding roller is sealed inside the roller through the sealing assembly, the inner wall of the roller is provided with a rib-shaped protrusion in the circumferential direction, and when the roller rotates, the grinding roller rotates along the middle portion and the lower portion of the inner wall of the roller through the combined action of gravity, centrifugal force and centripetal force; when moving to the rib-shaped protrusion, the grinding roller is uplifted, and after crossing the rib-shaped protrusion, the grinding roller moves downwards to smash the inner wall through the gravity. In the process of doing rotating movement, the grinding roller grinds powder, and when the grinding roller smashes the inner wall, the grinding roller impacts the powder, and the process of flattening large particles in the powder is accelerated. Therefore, in the process of machining the powder, the powder flattening ratio is high, the quality of the machined flaky powder is stable, and the large particles are machined faster and more efficiently; the service life of the roller is long.
Description
Technical field
The present invention relates to a kind of rolling device of metal dust, be particularly related to the rolling device at a kind of scaled metal powder end, it is characterized in that the intermittent bosses that is provided with the strip bulge that is similar to semicolumn of " rib " shape on its inner wall of rotary drum or is similar to semielliptical shape.
Background technology
REID RFID, as the core link of realizing Internet of Things article identification basis, must be used flexible magnetic sheet.It is made with the scaled metal powder end below very thin 1 μ m, its energy absorbing high-frequency electromagnetic interference wave, and can effectively prevent the interference of metal object reflection to reader identification RFID label.At Internet of Things communications band energy, it can improve the effective depth of antenna, increases communication distance.
For traditional anti-EMI material, spherical, elliposoidal, bulk and irregularly shaped metallic magnetic powder are made.In the anti-EMI magnetic sheet of flexibility that the magnetic-particle of these patterns is made, there is a large amount of gaps, easily cause part Electromgnetically-transparent, thereby its absorptivity to high-frequency electromagnetic disturbing wave is lower.With the anti-EMI magnetic sheet that flakey soft magnetic metal micro mist is made, it is flakey soft magnetic metal micropowder tablet battle array, once electromagnetic interference wave enters after this sheet battle array, although through reflecting continuously and reflecting, also be difficult to through sheet battle array, yet, in reflection and refracting process continuously, the energy of electromagnetic interference wave is progressively decayed, approach exhaustion, and dissipates with the form of heat energy.
For spherical, elliposoidal, bulk and erose soft magnetic metal powder being processed into the equipment of lepidiod metal dust, be mainly high energy ball mill or planetary ball mill at present.High energy ball mill or planetary ball mill are to utilize the mutual method of clashing into of ball of high-speed motion to realize flattening.But shortcoming is: the shock between ball and ball is point and the shock of putting, and its rum point is few, impulsive force is large.At the ball milling initial stage, most of particles hit can be become to the flat particle that thickness is thicker.Along with the growth of Ball-milling Time, the reduction of powder thickness, the ability withstanding shocks declines, and shock can make leafy powder become fragment fiercely, thereby causes the ratio of flat powder to reduce.
Summary of the invention
The present invention is directed to high energy ball mill and planetary ball mill for the shortcoming of lepidiod metal dust processing, the rolling device at a kind of scaled metal powder end is provided, the present invention's flat powder proportions in process is high, bulky grain flattening in powder processing more fast, more efficient.
Technical scheme: a kind of scaled metal powder end rolling device with ribbing, comprise cylinder, in described cylinder, be provided with roller, the openend of described cylinder is provided with black box, by black box, roller is sealed in cylinder, protruding along being circumferentially with rib shape on described inner wall of rotary drum.
Above-mentioned scaled metal powder end rolling device with ribbing, wherein, described rib is the intermittent bosses that is semi-cylindrical strip projected parts or is semielliptical shape.
Above-mentioned scaled metal powder end rolling device with ribbing, wherein, described black box comprises sealing plate, the pressing plate that is arranged on described cylinder openend, the outer peripheral face of described sealing plate and described cylinder inner peripheral surface are sealed and matched, described cylinder openend interior week be provided with groove, during connection, described pressing plate outer wall is stuck in described groove, on described pressing plate, be laterally provided with bolt, the bottom of described bolt withstands on the lateral surface of described sealing plate.
Preference, the external diameter of described cylinder and length ratio are 1:1.5～1:2.The height of described strip projected parts and width are 3%～8% of cylinder internal diameter size.
In order to improve wearability, increase the service life, the case hardness of described roller is greater than HRc60, and the depth of quenching is greater than 1.0mm.
In order to reach better rolling effect, described cylinder and rib shape projection are made by wear-resisting alloy tool steel.
Beneficial effect: because edge on inner wall of rotary drum is circumferentially with strip projected parts, cylinder is in rotation process, acting in conjunction due to gravity, centrifugal force and centripetal force, roller along in inner wall of rotary drum, bottom rotates, when moving to strip projected parts place, roller is lifted by it, when it is crossed after rib shape high spot, due to the effect of gravity, roller is pounded to inwall downwards again.When rotating, roller rolls powder, and when pounding to inwall, roller impacts powder, and this has just accelerated the process of the bulky grain flattening in powder, therefore, the present invention is when the powder of processing, the flat rate of powder is high, the scale like powder steady quality processing, to bulky grain processing more fast, efficiently; And cylinder long service life.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
The specific embodiment
In order to make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described in detail.
A kind of scaled metal powder end rolling device with ribbing, comprise cylinder 1, in described cylinder 1, be provided with roller 2, the openend of described cylinder 1 is provided with black box 30, by black box 30, roller 2 is sealed in to cylinder 1 inside, on described cylinder 1 inwall, along being circumferentially with strip projected parts 11, cylinder 1 is the cylindrical member of an end opening.Described rib is the intermittent bosses that is semi-cylindrical strip projected parts 11 or is semielliptical shape.Described black box 30 comprises sealing plate 3, the pressing plate 32 that is arranged on described cylinder 1 openend, the outer peripheral face of described sealing plate 3 and described cylinder 1 inner peripheral surface are sealed and matched, described cylinder 1 openend interior week be provided with groove, during connection, described pressing plate 32 outer walls are stuck in described groove, on described pressing plate 32, be laterally provided with bolt 34, described bolt 34 is arranged on pressing plate by pad 33, and the bottom 31 of described bolt 34 withstands on the lateral surface of described sealing plate 3 through pressing plate 32.The external diameter of described cylinder 1 and length ratio are 1:1.5～1:2.The height of described strip projected parts and width are 3%～8% of cylinder internal diameter size.In order to improve wearability, increase the service life, the case hardness of described roller is greater than HRc60, and the depth of quenching is greater than 1.0mm.
In order to reach better rolling effect, described cylinder and rib shape projection 11 are made by wear-resisting alloy tool steel.
Preferably adopting internal diameter is Ф 200mm, the cylinder of length 300mm, evenly distributed four row's strip projected parts 11 on its inwall, the high 15mm of each strip projected parts 11, wide 15mm.Use the roller of diameter Ф 30mm.
Patent of the present invention can be rolled into flakey metal fine powder by spherical, elliposoidal, bulk and erose metal fine powder (200 order～400 order), wherein, the average thickness of scale like powder is 0.1 μ m～1.0 μ m, aspect ratio 150～1500, and average grain diameter D50 is 30 μ m～100 μ m.
Operation principle: roller, under the acting in conjunction of gravity, centrifugal force and centripetal force, rotates along inner wall of rotary drum; Adjust the linear velocity that cylinder rotates, just can avoid roller to circle with inner wall of rotary drum; As long as the conditions such as quality of inner wall of rotary drum linear velocity, phosphoric acid, roller are suitable, just can make roller maintain center (but can not culminate) higher than cylinder to the regional movement of cylinder bottom.When roller moves to rib-like high spot, roller is lifted by it, and when it crosses strip projected parts place, due to the effect of gravity, roller is pounded to inwall downwards again.When rotating, roller rolls powder, and when pounding to inwall, roller impacts powder, and this has just accelerated oarse-grained flattening process.Size distribution in powder stock is disperseed, and during large percentage that big particle accounts for, the present invention is especially effective to oarse-grained flattening.
Adopting granularity is that 200 object iron sial powder are that raw material is illustrated.With ethanol, make decentralized medium, the volume ratio of decentralized medium and alloyed powder is 6:1.The mass ratio of rod milling medium and metal dust is 12:1.The linear velocity of the inwall of cylinder 1 is 300 ms/min.After continuous operation 40 hours, sampling.The average thickness of sample is 0.62 μ m, and aspect ratio is about 850.With laser particle analyzer, measure its average grain diameter D
50be 55 μ m.
Claims (7)
1. scaled metal powder end rolling device with ribbing, it is characterized in that: comprise cylinder, in described cylinder, be provided with roller, the openend of described cylinder is provided with black box, by black box, roller is sealed in cylinder, on described inner wall of rotary drum, along being circumferentially with rib, rib is half-cylindrical strip projected parts or semielliptical shape intermittent bosses.
2. scaled metal powder according to claim 1 end rolling device with ribbing, it is characterized in that: described black box comprises sealing plate, the pressing plate that is arranged on described cylinder openend, the outer peripheral face of described sealing plate and described cylinder inner peripheral surface are sealed and matched, described cylinder openend interior week be provided with groove, during connection, described pressing plate outer wall is stuck in described groove, is laterally provided with bolt on described pressing plate, and the bottom of described bolt withstands on the lateral surface of described sealing plate.
3. scaled metal powder according to claim 1 end rolling device with ribbing, is characterized in that: the external diameter of described cylinder and length ratio are 1:1.5～1:2.
4. scaled metal powder according to claim 1 end rolling device with ribbing, is characterized in that: the external diameter of described cylinder and length ratio are 1:1.5～1:2.
5. scaled metal powder according to claim 1 end rolling device with ribbing, is characterized in that: height and the width of described rib shape projection are 3%～8% of cylinder internal diameter size.
6. scaled metal powder according to claim 1 end rolling device with ribbing, is characterized in that: the case hardness of described roller is greater than HRc60, and the depth of quenching is greater than 1.0mm.
7. scaled metal powder according to claim 1 end rolling device with ribbing, is characterized in that: inner wall of rotary drum and rib-like projection are made of alloy tool steel, and its case hardness is greater than HRc45.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310464279.4A CN103521775B (en) | 2013-10-08 | 2013-10-08 | The rolling device that flaky metal powder is with ribbing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310464279.4A CN103521775B (en) | 2013-10-08 | 2013-10-08 | The rolling device that flaky metal powder is with ribbing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103521775A true CN103521775A (en) | 2014-01-22 |
| CN103521775B CN103521775B (en) | 2016-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310464279.4A Expired - Fee Related CN103521775B (en) | 2013-10-08 | 2013-10-08 | The rolling device that flaky metal powder is with ribbing |
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| Country | Link |
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| CN (1) | CN103521775B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104209509A (en) * | 2014-08-27 | 2014-12-17 | 镇江宝纳电磁新材料有限公司 | Fine metal soft magnetic micro powder scale formation device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2156934Y (en) * | 1993-02-09 | 1994-02-23 | 李兴隆 | Tumbling mill |
| US6179233B1 (en) * | 1996-04-23 | 2001-01-30 | Fcb Societe Anonyme | Wet crushing process and crusher for implementing such process |
| CN101628250A (en) * | 2009-02-23 | 2010-01-20 | 中国第一重型机械股份公司 | Grinding method |
| CN201395946Y (en) * | 2009-02-23 | 2010-02-03 | 郑赵强 | Drum-type concrete spraying machine |
| CN202238200U (en) * | 2011-09-15 | 2012-05-30 | 河南飞孟金刚石工业有限公司 | Rotary drum for crushing and shaping diamond micro-powder |
| CN202316033U (en) * | 2011-10-21 | 2012-07-11 | 株洲硬质合金集团有限公司 | Alloyed lining board type ball milling machine cylinder |
| CN202387507U (en) * | 2011-12-28 | 2012-08-22 | 一重集团大连设计研究院有限公司 | Built-in automatic grinding adjusting device for horizontal roller mill |
-
2013
- 2013-10-08 CN CN201310464279.4A patent/CN103521775B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2156934Y (en) * | 1993-02-09 | 1994-02-23 | 李兴隆 | Tumbling mill |
| US6179233B1 (en) * | 1996-04-23 | 2001-01-30 | Fcb Societe Anonyme | Wet crushing process and crusher for implementing such process |
| CN101628250A (en) * | 2009-02-23 | 2010-01-20 | 中国第一重型机械股份公司 | Grinding method |
| CN201395946Y (en) * | 2009-02-23 | 2010-02-03 | 郑赵强 | Drum-type concrete spraying machine |
| CN202238200U (en) * | 2011-09-15 | 2012-05-30 | 河南飞孟金刚石工业有限公司 | Rotary drum for crushing and shaping diamond micro-powder |
| CN202316033U (en) * | 2011-10-21 | 2012-07-11 | 株洲硬质合金集团有限公司 | Alloyed lining board type ball milling machine cylinder |
| CN202387507U (en) * | 2011-12-28 | 2012-08-22 | 一重集团大连设计研究院有限公司 | Built-in automatic grinding adjusting device for horizontal roller mill |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104209509A (en) * | 2014-08-27 | 2014-12-17 | 镇江宝纳电磁新材料有限公司 | Fine metal soft magnetic micro powder scale formation device |
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| CN103521775B (en) | 2016-04-13 |
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Address after: 212200 Henan Bridge, Yangtze East Road, Sanmao Street, Yangzhong City, Zhenjiang City, Jiangsu Province Patentee after: Jiangsu Bona Electromagnetic New Materials Co.,Ltd. Address before: 212200 Henan Bridge, Yangtze East Road, Sanmao Street, Yangzhong City, Zhenjiang City, Jiangsu Province Patentee before: ZHENJIANG BAONA ELECTROMAGNETIC NEW MATERIAL Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160413 |