CN101698291B - Grinding wheel formula special for tobacco shredder - Google Patents
Grinding wheel formula special for tobacco shredder Download PDFInfo
- Publication number
- CN101698291B CN101698291B CN2009102162353A CN200910216235A CN101698291B CN 101698291 B CN101698291 B CN 101698291B CN 2009102162353 A CN2009102162353 A CN 2009102162353A CN 200910216235 A CN200910216235 A CN 200910216235A CN 101698291 B CN101698291 B CN 101698291B
- Authority
- CN
- China
- Prior art keywords
- parts
- grinding wheel
- powder
- grinding
- abrasive 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.)
- Expired - Fee Related
Links
- 238000000227 grinding Methods 0.000 title claims abstract description 42
- 241000208125 Nicotiana Species 0.000 title claims abstract description 13
- 235000002637 Nicotiana tabacum Nutrition 0.000 title claims abstract description 13
- 239000000843 powder Substances 0.000 claims abstract description 34
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000004927 clay Substances 0.000 claims abstract description 10
- CDMADVZSLOHIFP-UHFFFAOYSA-N disodium;3,7-dioxido-2,4,6,8,9-pentaoxa-1,3,5,7-tetraborabicyclo[3.3.1]nonane;decahydrate Chemical compound O.O.O.O.O.O.O.O.O.O.[Na+].[Na+].O1B([O-])OB2OB([O-])OB1O2 CDMADVZSLOHIFP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229920001353 Dextrin Polymers 0.000 claims abstract description 6
- 239000000126 substance Substances 0.000 claims abstract description 6
- 239000000080 wetting agent Substances 0.000 claims abstract description 6
- 239000003082 abrasive agent Substances 0.000 claims description 20
- 238000005520 cutting process Methods 0.000 claims description 12
- 239000010433 feldspar Substances 0.000 claims description 9
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 8
- 229920000858 Cyclodextrin Polymers 0.000 claims description 6
- 229910052593 corundum Inorganic materials 0.000 claims description 6
- 239000010431 corundum Substances 0.000 claims description 6
- HFHDHCJBZVLPGP-UHFFFAOYSA-N schardinger α-dextrin Chemical group O1C(C(C2O)O)C(CO)OC2OC(C(C2O)O)C(CO)OC2OC(C(C2O)O)C(CO)OC2OC(C(O)C2O)C(CO)OC2OC(C(C2O)O)C(CO)OC2OC2C(O)C(O)C1OC2CO HFHDHCJBZVLPGP-UHFFFAOYSA-N 0.000 claims description 6
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical group [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 6
- 235000009496 Juglans regia Nutrition 0.000 claims description 5
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 5
- 229910052796 boron Inorganic materials 0.000 claims description 5
- FYGDTMLNYKFZSV-MRCIVHHJSA-N dextrin Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)OC1O[C@@H]1[C@@H](CO)OC(O[C@@H]2[C@H](O[C@H](O)[C@H](O)[C@H]2O)CO)[C@H](O)[C@H]1O FYGDTMLNYKFZSV-MRCIVHHJSA-N 0.000 claims description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 235000019353 potassium silicate Nutrition 0.000 claims description 5
- 235000020234 walnut Nutrition 0.000 claims description 5
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 235000020357 syrup Nutrition 0.000 claims description 4
- 239000006188 syrup Substances 0.000 claims description 4
- 240000007049 Juglans regia Species 0.000 claims 1
- 239000002245 particle Substances 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 4
- 239000007767 bonding agent Substances 0.000 abstract 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 2
- 239000004375 Dextrin Substances 0.000 abstract 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 abstract 1
- 230000001133 acceleration Effects 0.000 abstract 1
- HPTYUNKZVDYXLP-UHFFFAOYSA-N aluminum;trihydroxy(trihydroxysilyloxy)silane;hydrate Chemical compound O.[Al].[Al].O[Si](O)(O)O[Si](O)(O)O HPTYUNKZVDYXLP-UHFFFAOYSA-N 0.000 abstract 1
- 229910052681 coesite Inorganic materials 0.000 abstract 1
- 229910052906 cristobalite Inorganic materials 0.000 abstract 1
- 235000019425 dextrin Nutrition 0.000 abstract 1
- 229910052621 halloysite Inorganic materials 0.000 abstract 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- 229910052625 palygorskite Inorganic materials 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- 229910052682 stishovite Inorganic materials 0.000 abstract 1
- 229910052905 tridymite Inorganic materials 0.000 abstract 1
- 229910001651 emery Inorganic materials 0.000 description 15
- 239000011734 sodium Substances 0.000 description 5
- 241000758789 Juglans Species 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- PRPINYUDVPFIRX-UHFFFAOYSA-N 1-naphthaleneacetic acid Chemical compound C1=CC=C2C(CC(=O)O)=CC=CC2=C1 PRPINYUDVPFIRX-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 241000220317 Rosa Species 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- 239000006061 abrasive grain Substances 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 150000008064 anhydrides Chemical class 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001638 boron Chemical class 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical class O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 235000019795 sodium metasilicate Nutrition 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
Landscapes
- Polishing Bodies And Polishing Tools (AREA)
Abstract
The invention relates to a formula of a grinding wheel special for a tobacco shredder. The formula comprises the following components in parts by weight: the grinding material comprises 100 parts of grinding materials, 9-13 parts of a bonding agent, 2-4 parts of dextrin powder and 3-6 parts of a wetting agent, wherein the bonding agent consists of halloysite clay powder, palygorskite powder, borax glass powder and iron oxide red, and comprises the following chemical components in percentage by weight: al 2O3:21.0~24.0%、SiO2:52.0~56.0%、Fe2O3:1.0~1.5%、B2O3:5.5~7.5%、CaO:0~0.5%、MgO:0~0.5%、K2O+Na2O: 10.0 to 14.0 percent. The grinding wheel manufactured by adopting the formula has the advantages that the refractoriness of the bonding agent is proper, the fluidity is good, the mechanical strength is high, the high-temperature wettability is good, the manufactured grinding wheel is fully liquefied with the bonding agent under the high-temperature melting acceleration, the grinding particles are uniformly included, the grinding performance of the manufactured grinding wheel is good, and the grinding precision is highAnd the service life is long.
Description
Technical field:
The present invention relates to a kind of grinding wheel formula, specifically is a kind of tobacco cutting machine special grinding wheel formula.
Background technology:
Do not deposit firm chemical metallurgy on its coated metal of emery wheel commonly used and matrix and the abrasive material faying face and combines, in fact abrasive material is inlayed by mechanical embedding, thereby hold is little, and abrasive grain is loaded and heavylier is prone to come off and causes global failure; Be to increase hold and just must increase thickness of coating, its as a result the exposed height of abrasive particle chip space reduce, emery wheel stops up easily, radiating effect is poor, surface of the work is burnt easily.Present domestic emery wheel manufacturing still is unrealized, and optimal design goes out the emery wheel optimum formula by the processing conditions requirement.
Summary of the invention:
The object of the present invention is to provide a kind of production high temperature to urge tip-off and bond fully to liquefy; Even inclusion abrasive particle; The wheel grinding performance of processing is good; Grinding accuracy is high, and the grinding wheel formula of long service life and its bond have characteristics such as refractoriness is suitable, good fluidity, mechanical strength is high, the high temperature wellability is good.
The object of the invention is achieved through following technical proposals:
A kind of tobacco cutting machine special grinding wheel formula; It is characterized in that this prescription calculates by weight; Comprise 100 parts in abrasive material, 9~13 parts of bonds, 2~4 parts of dextrine powders, 3~6 parts of wetting agents; Wherein bond is made up of Xuyong clay powder, Shanglou feldspar powder, borax glass powder and iron oxide red, has the chemical composition of following weight fraction scope: Al
2O
3: 21.0~24.0%, SiO
2: 52.0~56.0%, Fe
2O
3: 1.0~1.5%, B
2O
3: 5.5~7.5%, CaO:0~0.5%, MgO:0~0.5%, K
2O+Na
2O:10.0~14.0%.
Scheme further is: to be brown corundum F60 abrasive material and white fused alumina F60 abrasive material form according to 1: 1 mixed described abrasive material;
Scheme further is: described abrasive material is a pink fused alumina F60 abrasive material;
Scheme further is: described dextrine powder is a cyclodextrin powder, and wherein ash content is less than 2.5% weight fraction, Engler viscosity 1.3~1.6 25 ℃ the time;
Scheme further is: described wetting agent is waterglass or syrup;
Scheme further is: in described grinding wheel formula, also be added with 20~46
#6~8 parts of walnut shell powders.
In this bond, the main component Al of Xuyong clay powder
2O
32SiO
2,, therefore utilize its this specific character can improve wet base of emery wheel and dry body strength because clay has the characteristic of plasticity, associativity; Simultaneously because the Xuyong clay powder is highly purified kaolinite class clay; 1700 ℃~1750 ℃ of its refractoriness, so add back scalable bond refractoriness, expansion bond sintering range, the bond sintering range is wideer; Control more easily when burning till, product quality is stable more.
In this bond, the main component of Shanglou feldspar is K
2OAl
2O
36SiO
2, the refractoriness of Shanglou feldspar is generally 1260 ℃~1280 ℃, introduces basic anhydride K through in bond, adding feldspar
2O has reduced the temperature of bond liquid phase appearance; Since feldspar urge molten effect, make that glassy phase increases in the bond, can improve the mechanical strength of grinding tool; Because feldspar belongs to lean property material,, reduce the grinding tool drying shrinkage deformation simultaneously so can reduce clay plasticity.
In this bond, the main component of borax glass is NaB
4O
7, the refractoriness of borax glass is 640 ℃~690 ℃, and it is a kind of flux of urging by force in bond, utilizes it to urge molten effect, makes the most of vitreum network that forms of bond, and this boron-containing glass body itself has higher intensity, can significantly improve the intensity of grinding tool; Its introducing can improve flowability, the wettability of bond, helps bond between abrasive material, to distribute equably, improves the grade of abrasive tool uniformity; In addition, its introducing can also improve the respond of bond, and the boracic bond can dissolve more Al in the corundum abrasive
2O
3In the entering bond, the coefficient of expansion of corundum abrasive and bond is reached unanimity, be not easy the product micro-crack in the bond bridge, highly beneficial to improving grinding tool intensity.
The iron oxide red composition is Fe in this bond
2O
3, be used to improve the fragility of bond, improve the toughness of bond.
The present invention adopts compound abrasive with bond, makes emery wheel have the strong advantage of brown corundum abrasive resisting breakage ability concurrently and has the good cutting ability of white fused alumina abrasive material again, and promptly having improved wheel life has and kept emery wheel to quenching alloy blade good grinding performance.
Adopt rose grain, utilize the high characteristics of its toughness, process the bigger material of toughness, compare with white fused alumina and can significantly improve grinding efficiency and workpiece surface roughness.
Waterglass is sodium metasilicate (Na
2On SiO
2) the aqueous solution, it can moistening preferably abrasive particle and bond, guarantees the abundant mixing of molding mass, can also improve wet, the dry body strength of grinding tool base substrate simultaneously; Because Na in the waterglass
2O content has it and urges molten effect 10~12%, can reduce the bond refractoriness, increase glass content, the raising bond respond of special-purpose bond, thereby improve the emery wheel product intensity.
Carbohydrate (the C of a kind of complicacy of syrup
6H
10O
5)
n, it can improve the shaping strength of wet base greatly.
Bond intensity height and proportion are reasonable in the emery wheel; Emery wheel hardness and workpiece hardness and workpiece grinding requirement are fitted like a glove, promptly guaranteed the emery wheel security, make the emery wheel applicability good again; Can satisfy the grinding of import blade and homemade blade simultaneously, during grinding shape keep, long service life.
Add 20-46
#Behind the walnut shell powder, the porosity of emery wheel is increased to 25~30% and be evenly distributed, and helps heat radiation and chip removal during grinding, is guaranteeing can to strengthen the grinding depth of cut under the constant situation of other grinding condition, and it is high to improve grinding efficiency.
The present invention can accomplish through the emery wheel making technology of batch mixing commonly used, moulding, drying, processing and make.
Adopt the refractoriness that makes bond that this prescription makes suitably, good fluidity, mechanical strength is high, the high temperature wellability is good etc.; And the emery wheel of making urges tip-off and bond fully to liquefy at high temperature, even inclusion abrasive particle, and the wheel grinding performance of processing is good; Grinding accuracy is high, long service life.
The specific embodiment:
Below in conjunction with embodiment the present invention is further specified:
Embodiment one
A kind of tobacco cutting machine special grinding wheel formula; This prescription calculates by weight; Comprise each 50 parts in brown corundum F60 abrasive material and white fused alumina F60 abrasive material, 9~13 parts of bonds, 2~4 parts of cyclodextrin powders, 3~6 parts of waterglass; Wherein bond is made up of Xuyong clay powder, Shanglou feldspar powder, borax glass powder and iron oxide red, has the chemical composition of following weight fraction scope: Al
2O
3: 21.0~24.0%, SiO
2: 52.0~56.0%, Fe
2O
3: 1.0~1.5%, B
2O
3: 5.5~7.5%, CaO:0~0.5%, MgO:0~0.5%, K
2O+Na
2O:10.0~14.0%, the ash content of cyclodextrin powder is less than 2.5% weight fraction, Engler viscosity 1.3~1.6 25 ℃ the time.
Embodiment two
A kind of tobacco cutting machine special grinding wheel formula; This prescription calculates by weight; Comprise 100 parts in pink fused alumina F60 abrasive material, 9~13 parts of bonds, 2~4 parts of cyclodextrin powders, 3~6 parts in syrup; Wherein bond is made up of Xuyong clay powder, Shanglou feldspar powder, borax glass powder and iron oxide red, has the chemical composition of following weight fraction scope: Al
2O
3: 21.0~24.0%, SiO
2: 52.0~56.0%, Fe
2O
3: 1.0~1.5%, B
2O
3: 5.5~7.5%, CaO:0~0.5%, MgO:0~0.5%, K
2O+Na
2O:10.0~14.0%, the ash content of cyclodextrin powder is less than 2.5% weight fraction, Engler viscosity 1.3~1.6 25 ℃ the time.
Embodiment three
On the basis of embodiment one, add 20~46
#6~8 parts of walnut shell powders.
Embodiment four
On the basis of embodiment two, add 20~46
#6~8 parts of walnut shell powders.
Claims (6)
1. tobacco cutting machine special grinding wheel formula; It is characterized in that this prescription calculates by weight; Comprise 100 parts in abrasive material, 9~13 parts of bonds, 2~4 parts of dextrine powders, 3~6 parts of wetting agents; Wherein bond is made up of Xuyong clay powder, Shanglou feldspar powder, borax glass powder and iron oxide red, has the chemical composition of following weight fraction scope: Al
2O
3: 21.0~24.0%, SiO
2: 52.0~56.0%, Fe
2O
3: 1.0~1.5%, B
2O
3: 5.5~7.5%, CaO:0~0.5%, MgO:0~0.5%, K
2O+Na
2O:10.0~14.0%.
2. tobacco cutting machine special grinding wheel formula according to claim 1 is characterized in that: to be brown corundum F60 abrasive material and white fused alumina F60 abrasive material form according to 1: 1 mixed described abrasive material.
3. tobacco cutting machine special grinding wheel formula according to claim 1 is characterized in that: described abrasive material is a pink fused alumina F60 abrasive material.
4. tobacco cutting machine special grinding wheel formula according to claim 1 is characterized in that: described dextrine powder is a cyclodextrin powder, and wherein ash content is less than 2.5% weight fraction, Engler viscosity 1.3~1.6 25 ℃ the time.
5. tobacco cutting machine special grinding wheel formula according to claim 1 is characterized in that: described wetting agent is waterglass or syrup.
6. tobacco cutting machine special grinding wheel formula according to claim 1 is characterized in that: except said abrasive material, bond, dextrine powder, wetting agent, also be added with 20~46
#6~8 parts of walnut shell powders.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2009102162353A CN101698291B (en) | 2009-11-17 | 2009-11-17 | Grinding wheel formula special for tobacco shredder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2009102162353A CN101698291B (en) | 2009-11-17 | 2009-11-17 | Grinding wheel formula special for tobacco shredder |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101698291A CN101698291A (en) | 2010-04-28 |
CN101698291B true CN101698291B (en) | 2012-05-16 |
Family
ID=42146756
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2009102162353A Expired - Fee Related CN101698291B (en) | 2009-11-17 | 2009-11-17 | Grinding wheel formula special for tobacco shredder |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN101698291B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108942702B (en) * | 2018-07-20 | 2020-06-19 | 郑州优德工业陶瓷有限公司 | Diamond wire sharpening grindstone and production method thereof |
CN110193788B (en) * | 2019-06-09 | 2021-07-23 | 江苏赛扬精工科技有限责任公司 | Ceramic CBN grinding wheel for machining plane multi-key broach and application thereof |
-
2009
- 2009-11-17 CN CN2009102162353A patent/CN101698291B/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CN101698291A (en) | 2010-04-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN102152248B (en) | Diamond grinding tool of ceramic-metallic bond and preparation method of grinding tool | |
US20190283214A1 (en) | Bonded abrasive articles and methods of manufacture | |
CN106985085B (en) | A kind of metal anchoring agent diamond wheel | |
CN104128892A (en) | Metal ceramic composite binding agent and composite binding agent diamond grinding wheel | |
CN102634319A (en) | Novel microcrystalline abrasive for super-hard abrasive tools and production method thereof | |
CN105922144A (en) | Pore-forming agent of superhard material grinding tool and preparing method of pore-forming agent | |
CN104149038B (en) | Diamond wheel employing ceramic binding agent | |
CN102837266A (en) | Ceramic bond CBN (Cubic Boron Nitride) abrasive wheel for double end surface grinding | |
CN102674871A (en) | Low-temperature high-strength ceramic bond and preparation method thereof | |
CN102380830A (en) | Porous ceramic bonding agent cubic boron nitride grinding tool | |
CN103273431A (en) | Ceramic binder | |
CN103395009B (en) | Ceramic hollow sphere multi-layer brazed diamond block and manufacturing method thereof | |
CN100478307C (en) | Ceramic metal composite bonding agent used for cube boron nitride grinding wheel | |
CN105345680A (en) | Carbon nanofiber enhanced nano-vitrified bond diamond grinding wheel and preparation method thereof | |
CN104175233A (en) | Resin and metal compound bonding agent and compound bonding agent diamond grinding wheel | |
CN113214790B (en) | Hollow alumina ball-based composite abrasive, preparation method thereof and grinding tool | |
CN105345679A (en) | Basalt fiber enhanced nano-vitrified bond diamond grinding wheel and preparation method thereof | |
CN104985536A (en) | Metal-bonded diamond grinding wheel | |
CN101698291B (en) | Grinding wheel formula special for tobacco shredder | |
CN105983912A (en) | Ceramic fiber reinforced nano ceramic bond diamond grinding wheel and preparation method thereof | |
CN105171624A (en) | Nano ceramic bond diamond wheel containing tetrapod-like zinc oxide whiskers reinforced and preparing method of nano ceramic bond diamond wheel | |
CN107598787B (en) | A kind of skive and its manufacturing method | |
CN104552032A (en) | Metal nano material composite binder and composite binder diamond grinding wheel | |
CN109822466A (en) | A kind of high-intensity and high-tenacity wheel ceramic bonding agent and its application | |
CN103232216A (en) | Inner coating for improving glazing property of turned carbon-containing fireproof material and coating method thereof |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120516 Termination date: 20151117 |
|
EXPY | Termination of patent right or utility model |