CN101829772A - Thermoplasticity shaping and processing method of metal glass micro construction member - Google Patents
Thermoplasticity shaping and processing method of metal glass micro construction member Download PDFInfo
- Publication number
- CN101829772A CN101829772A CN 201010183560 CN201010183560A CN101829772A CN 101829772 A CN101829772 A CN 101829772A CN 201010183560 CN201010183560 CN 201010183560 CN 201010183560 A CN201010183560 A CN 201010183560A CN 101829772 A CN101829772 A CN 101829772A
- Authority
- CN
- China
- Prior art keywords
- glassy metal
- temperature
- processing method
- metal glass
- glassy
- 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.)
- Granted
Links
Images
Abstract
The invention discloses a thermoplasticity shaping and processing method of a metal glass micro construction member, comprising: (1) positioning metal glass in a die, and restricting the edge of the metal glass; (2) prepressurizing and heating the metal glass in the vacuum environment or in the air to ensure that the temperature of the metal glass is higher than the vitreous state conversion temperature Tg of the metal glass and is lower than the crystallizing temperature thereof, increasing pressure to ensure that microstructure on the die is pressed into metal glass; after maintaining pressure and cooling to the vitreous state conversion temperature Tg of the metal glass, repelling pressure; after cooling to binding temperature Tu, clamping the metal glass, and demoulding after continuing cooling to demoulding temperature; and trimming to obtain the metal glass micro construction member. The method has the advantages of high shaping efficiency, favorable consistency, low cost and the like and can be processed in parallel.
Description
Technical field
The present invention relates to glassy metal micro-nano structure processing technique field, relate in particular to thermoplastic molding's processing method of the little member of a kind of glassy metal.
Background technology
Glassy metal is a kind of new type of metal material, is referred to as amorphous metal again, and its internal structure shows as the unordered non crystalline structure of long-range of class glass.Glassy metal has a lot of excellent characteristic, has both had the performance of conventional crystal material, has the characteristic of conventional oxide glass again.Glassy metal is in the characteristic that has metal aspect electric conductivity, intensity, the thermal conductivity, but but the atom that is similar to glass on atomic arrangement equally is lack of alignment.Glassy metal has very high intensity, hardness, elasticity, rigidity and excellent magnetics, corrosion-resistant, abrasion resistance properties etc., and it can stand 180 ° of bent without breaking, and the fracture toughness value can reach 5 times of steel, is the perfect material of making parts such as electromagnetic sensor.In addition, glassy metal can also replace quartzy make radar, computer lead material, sensing element etc.At present,,, a lot of patents is arranged also in that more achievement in research is arranged aspect the preparation of bulk metallic glass at glassy metal, but few to the research of the micro-structural forming technique of glassy metal.Consider the excellent characteristic of glassy metal, it will be with a wide range of applications in the micro-nano precision component, thereby the glassy metal processing method of seeking low cost, efficient, high-quality, the processing that can walk abreast is necessary very much.
Glassy metal is at its glass transition temperature T
gHave good plasticity when above, its structure just is converted into crystal structure easily and loses the superperformance that non crystalline structure has behind the crystallization temperature but arrived.Thereby the processing method of generation high temperature such as cutting, laser and be not suitable for the processing of glassy metal micro-structural.
Summary of the invention
The present invention utilizes glassy metal to have the characteristics of good thermoplastic between its glass transition temperature and crystallization temperature thereof, and a kind of convenience, thermoplastic molding's processing method of the little member of glassy metal cheaply are provided.
Thermoplastic molding's processing method of the little member of a kind of glassy metal comprises step:
(1) glassy metal is positioned in the mould and to limiting at the edge of glassy metal;
(2), make the temperature of glassy metal reach the glass transition temperature T of this glassy metal with the precharge heating in vacuum environment or air of the described glassy metal of step (1)
gMore than and its below crystallization temperature, increase pressure and make the micro-structural on the mould be pressed in the glassy metal, pressurize is cooled to the glass transition temperature T of this glassy metal
gAfter cancel pressure, then be cooled to solid folder temperature T
uAfter clamp glassy metal, continue to be cooled to calcining temperature T
dAfter carry out the demoulding, through cut edge handling, obtain the little member of glassy metal.
Described glassy metal comprises the various types of glassy metals in this area, can select bulk metallic glass (Bulk metallic glass) or glassy metal strip for use.
The described temperature T of pressing from both sides admittedly
uWith calcining temperature T
dRelation satisfy (T
g-T
d) α
m=(T
g-T
u) α
pWherein, α
mBe the thermal coefficient of expansion of mould, α
pThe thermal coefficient of expansion that is, T
gIt is the glass transition temperature of glassy metal.
Described mould is made of mold that cooperatively interacts and bed die, and wherein bed die is a grooved, and the sidewall by bed die limits the edge of described glassy metal.
The frontal projected area of described mold on bed die when mold and bed die clamping glassy metal, can form the die cavity of accurate sealing like this less than the area of groove in the bed die.
Shrink for the uniformity that further guarantees glassy metal and mould, still need clamp glassy metal during the demoulding.Can utilize clamping device and bed die to clamp the position of glassy metal at the mold periphery, when making mold break away from glassy metal, glassy metal guarantees to shrink with the uniformity of mould under the effect of clamping device and bed die.
Described clamping device can be selected this area device with clamping ability commonly used for use, can limit glassy metal with its parts that are used for the clamping glassy metal is as the criterion in the position of mold periphery, for example, can select the demoulding cover with the coaxial setting of mould for use, clamp the position of glassy metal by demoulding cover and bed die during the demoulding at the mold periphery.
In the step (2), described glassy metal is chosen in precharge heating in vacuum environment or the air, can decide on the size of the microstructure features yardstick on the concrete mould; When the microstructure features yardstick on the mould is in 100 μ m and above magnitude, air in the micro-structural on the mould is easier to discharge when thermoplasticity compression moulding, in order to improve working (machining) efficiency, can not carry out the extracting vacuum operation, at this moment, select glassy metal precharge heating in air; When the microstructure features yardstick on the mould is in 10 μ m and following magnitude, because the air in the micro-structural on the mould is difficult to discharge fully when thermoplasticity compression moulding, influence the little molding component quality of glassy metal, at this moment, the extracting vacuum step can not be omitted, and selects glassy metal precharge heating in vacuum environment; When the microstructure features yardstick on the mould is between 10 μ m～100 μ m, can determine according to actual processing result.
The useful effect that the present invention has is:
The present invention has used for reference in the injection mo(u)lding because cavity closed makes the internal feature structure can obtain the advantage of better filling, and by limiting the glassy metal edge in advance, and is cooled to solid folder temperature T at the glassy metal through the mould punching press
uAfter clamp glassy metal and be cooled to calcining temperature T until glassy metal through the mould punching press
d, make to form an accurate sealing die cavity between mould and glassy metal, can significantly improve the pressure at the microstructure features place on the die cavity, compared to the pressing process of an open die cavity, can significantly improve its charging efficiency.
The elastic modelling quantity that the present invention is directed to glassy metal is bigger, and the thermal coefficient of expansion between mould and glassy metal differs greatly, stress takes place and concentrates in the root of the little member of glassy metal easily when making cooling and demolding, the problem that the feature of the little member of glassy metal is destroyed when causing the demoulding, propose the homogeneity contraction method and guarantee that mould is identical with amount of contraction between glassy metal, thereby improve the little member final molding of glassy metal quality.
The inventive method shaping efficiency height, high conformity, the processing that can walk abreast, cost is low, need not special device, and is suitable for suitability for industrialized production.
Adopt the little member of the inventive method processing metal glass, its mould can repeatedly reuse, and can cut down finished cost significantly.Simultaneously the inventive method also has the processing of can walking abreast and extends to advantage in the processing of glassy metal nanoscale member.
Description of drawings
Fig. 1 is the partial structurtes schematic diagram that is applicable to a kind of typical thermoplastic molding's device of the inventive method;
Fig. 2 is for adopting the flow chart of the little member of thermoplastic molding's device processing metal glass among Fig. 1; Wherein, (a) for glassy metal being positioned at mould below and thermoplastic molding's unit state figure when the edge of glassy metal limited, thermoplastic molding's unit state figure when (b) heating after-applied pressure and make micro-structural on the mould be pressed in the glassy metal for precharge is (c) for being cooled to solid folder temperature T
uAfter thermoplastic molding's unit state figure when clamping glassy metal, (d) thermoplastic molding's unit state figure when clamping the glassy metal demoulding, thermoplastic molding's unit state figure when (e) finishing for the demoulding, (f) handle the structural representation of preceding glassy metal for cutting edge, (g) be the structural representation of the little member of glassy metal;
Fig. 3 is the technological parameter corresponding relation figure of the inventive method;
Fig. 4 is the flow effect schematic diagram of glassy metal when making micro-structural on the mould be pressed in the glassy metal of exerting pressure; Wherein, (h) be the flow effect schematic diagram of glassy metal in the pressing process of open die cavity, the flow effect schematic diagram of glassy metal in the pressing process of the sealing die cavity that (i) is as the criterion.
Among Fig. 1, the 1st, following heating plate, the 2nd, glassy metal substrate, the 3rd, mold, the 4th, elevating mechanism, the 5th, grooved bed die, the 6th, last heating plate, the 7th, demoulding air flue, the 8th, demoulding cover, the 9th, vacuum (-tight) housing.
The specific embodiment
The invention will be further described below in conjunction with drawings and Examples.
As shown in Figure 1, thermoplastic molding's processing unit (plant) of the little member of glassy metal, comprise elevating mechanism 4, demoulding cover 8, vacuum (-tight) housing 9, be used to lay the last heating plate 6 and the following heating plate 1 of the little element mold of glassy metal, and the demoulding air flue 7 that runs through demoulding cover 8, vacuum (-tight) housing 9 and last heating plate 6; Mould is made of mold 3 that cooperatively interacts and grooved bed die 5, and mold 3 is provided with little member of mould, and grooved bed die 5 is used to lay glassy metal substrate 2, and the sidewall by grooved bed die 5 limits the edge of glassy metal substrate 2; When following heating plate 1 and last heating plate 6 were close mutually, the little member on the mold 3 acted on glassy metal substrate 2; Demoulding cover 8, vacuum (-tight) housing 9 and go up heating plate 6 and is connected with elevating mechanism 4, elevating mechanism 4 is independent respectively controls demoulding cover 8, vacuum (-tight) housing 9 and the upward lifting of heating plate 6.
The frontal projected area of mold 3 on grooved bed die 5 when mold 3 and grooved bed die 5 clamping glassy metal substrates 2, can form the die cavity of accurate sealing like this less than the area of groove in the grooved bed die 5.
Shown in (a) among Fig. 2, glassy metal is processed into the glassy metal substrate 2 of specifying the specification size, put into the grooved bed die 5 corresponding, glassy metal substrate 2 is positioned under the mould 3 and sidewall by grooved bed die 5 limits the edge of glassy metal substrate 2 by grooved bed die 5 with its specification.The initial temperature of glassy metal substrate 2 is T
0
As (b) among Fig. 2 and shown in Figure 3, open elevating mechanism 4, control vacuum (-tight) housing 9 is done rectilinear motion downwards and is formed confined space until 9 ends of vacuum (-tight) housing along contacting with following heating plate 1 in vacuum (-tight) housing 9, vacuumize by 7 pairs of these confined spaces of demoulding air flue, go up heating plate 6 by elevating mechanism 4 controls again and do rectilinear motion downwards, apply precompression P for glassy metal substrate 2 by last heating plate 6
pCarry out precompressed; Switch on for simultaneously last heating plate 6 and play heating plate 1, mould 3 and glassy metal substrate 2 are carried out thermoplastic, make the temperature of glassy metal substrate 2 reach the glass transition temperature T of this glassy metal
gMore than and its crystallization temperature T
cBelow (promptly be pressed into temperature T
e), increase pressure to being pressed into pressure P
eMake the micro-structural on the mould 3 be pressed in the glassy metal substrate 2, altogether t consuming time
1Keep this to be pressed into pressure P
eAnd dwell time t
h, be cooled to the glass transition temperature T of this glassy metal
gAfter cancel and be pressed into pressure P
e
Shown in (c) among Fig. 2, then glassy metal substrate 2 is cooled to solid folder temperature T
uAfter, do rectilinear motion downwards by elevating mechanism 4 control demoulding covers 8 and insert in the glassy metal substrate 2 until demoulding cover 8 bottoms, clamp the position of glassy metal substrate 2 with grooved bed die 5, to avoid glassy metal substrate 2 excess shrinkage at the mold periphery.
Shown in (d) among Fig. 2, continue cooling, when the temperature of glassy metal substrate 2 to its calcining temperature T
dAfter, when demoulding cover 8 is clamped glassy metal substrate 2, inject compressed nitrogen by demoulding air flue 7, go up heating plate 6 under the nitrogen gas impetus that utilization is expanded and upwards do rectilinear motion, carry out Pneumatic demould.
Shown in (e) among Fig. 2, when last heating plate 6 moved upward, the nitrogen gas of expansion can further promote demoulding cover 8 and move upward, and makes demoulding cover 8 break away from glassy metal substrate 2.Start elevating mechanism 4 control vacuum (-tight) housings 9 and upwards do rectilinear motion, make vacuum (-tight) housing 9 break away from heating plate 1 down, glassy metal before the side cut of taking-up shown in (f) among Fig. 2 handled is handled through cutting edge, and obtains the little member of glassy metal shown in (g) among Fig. 2.
Admittedly press from both sides temperature T
uWith calcining temperature T
dRelation satisfy (T
g-T
d) α
m=(T
g-T
u) α
pWherein, α
mBe the thermal coefficient of expansion of mould, α
pThe thermal coefficient of expansion that is, T
gIt is the glass transition temperature of glassy metal.
In order to improve the shaping efficiency of glassy metal when the thermoplastic molding, the present invention forms the die cavity of an accurate sealing when mold 3 and grooved bed die 5 clamping glassy metal substrates 2, improve the pressure at die microstructure feature place by this standard sealing die cavity, compared to the pressing process of an open die cavity, can significantly improve its charging efficiency.As shown in Figure 4, the finite element modelling that the pressing process of the pressing process of open die cavity and accurate sealing die cavity is carried out, when mould be pressed into equally 80 μ m apart from the time, adopt open die cavity compacting, its mobile maximal rate appears at the edge, and packed height only has 11 μ m, shown in (h) among Fig. 4; And adopt the compacting of accurate sealing die cavity, and its mobile maximal rate appears at micro-structural inside, and its packed height reaches 58 μ m, shown in (i) among Fig. 4.As seen, the present invention thermoplastic molding of adopting accurate sealing die cavity to carry out glassy metal can significantly improve its charging efficiency.
Claims (6)
1. thermoplastic molding's processing method of the little member of glassy metal comprises step:
(1) glassy metal is positioned in the mould and to limiting at the edge of glassy metal;
(2), make the temperature of glassy metal reach the glass transition temperature T of this glassy metal with the precharge heating in vacuum environment or air of the described glassy metal of step (1)
gMore than and its below crystallization temperature, increase pressure and make the micro-structural on the mould be pressed in the glassy metal, pressurize is cooled to the glass transition temperature T of this glassy metal
gAfter cancel pressure, then be cooled to solid folder temperature T
uAfter clamp glassy metal, continue to be cooled to calcining temperature T
dAfter carry out the demoulding, through cut edge handling, obtain the little member of glassy metal.
2. thermoplastic molding's processing method of the little member of glassy metal according to claim 1 is characterized in that, described glassy metal is selected bulk metallic glass or glassy metal strip for use.
3. thermoplastic molding's processing method of the little member of glassy metal according to claim 1 is characterized in that, the described temperature T of pressing from both sides admittedly
uWith calcining temperature T
dRelation satisfy (T
g-T
d) α
m=(T
g-T
u) α
pWherein, α
mBe the thermal coefficient of expansion of mould, α
pBe the thermal coefficient of expansion of glassy metal, T
gIt is the glass transition temperature of glassy metal.
4. thermoplastic molding's processing method of the little member of glassy metal according to claim 1, it is characterized in that, described mould is made of mold that cooperatively interacts and bed die, and wherein bed die is a grooved, and the sidewall by bed die limits the edge of described glassy metal.
5. thermoplastic molding's processing method of the little member of glassy metal according to claim 4 is characterized in that, the frontal projected area of described mold on bed die is less than the area of groove in the bed die.
6. thermoplastic molding's processing method of the little member of glassy metal according to claim 1 is characterized in that, still need clamp glassy metal during the demoulding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101835607A CN101829772B (en) | 2010-05-26 | 2010-05-26 | Thermoplasticity shaping and processing method of metal glass micro construction member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101835607A CN101829772B (en) | 2010-05-26 | 2010-05-26 | Thermoplasticity shaping and processing method of metal glass micro construction member |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101829772A true CN101829772A (en) | 2010-09-15 |
| CN101829772B CN101829772B (en) | 2011-11-02 |
Family
ID=42714070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101835607A Expired - Fee Related CN101829772B (en) | 2010-05-26 | 2010-05-26 | Thermoplasticity shaping and processing method of metal glass micro construction member |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101829772B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103962434A (en) * | 2014-05-07 | 2014-08-06 | 华中科技大学 | Electroplastic forming method for block metallic glass and device thereof |
| TWI460139B (en) * | 2011-07-29 | 2014-11-11 | Young Optics Inc | Manufacture method and manufacture system of glass product and electronic device |
| CN104302424A (en) * | 2012-02-29 | 2015-01-21 | 兵神技研股份有限公司 | Method for molding amorphous alloy, and molded object produced by said molding method |
| CN107790536A (en) * | 2017-10-17 | 2018-03-13 | 深圳大学 | Glassy metal embossing forming device |
| CN113637930A (en) * | 2021-07-22 | 2021-11-12 | 武汉大学 | Preparation method of metal glass three-dimensional structure and sensing application thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1639411A1 (en) * | 2003-06-23 | 2006-03-29 | Consiglio Nazionale Delle Ricerche Infm Istituto Nazionale Per La Fisica Della Materia | A nano impression lithographic process which involves the use of a die having a region able to generate heat |
| US20080099175A1 (en) * | 2006-10-30 | 2008-05-01 | Jinn P. Chu | Method for in-gas micro/nanoimprinting of bulk metallic glass |
| CN101249938A (en) * | 2008-02-26 | 2008-08-27 | 浙江大学 | Pneumatic micro-nano imprint demoulding structure |
| CN101298097A (en) * | 2007-04-30 | 2008-11-05 | 中国科学院金属研究所 | Method for processing outer casing of bulk amorphous alloy electronic product and processing device |
| CN101406925A (en) * | 2008-11-18 | 2009-04-15 | 浙江大学 | Method for device for forming metal micro-thixotropy in semi-solid state assistant by supersonic vibration |
-
2010
- 2010-05-26 CN CN2010101835607A patent/CN101829772B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1639411A1 (en) * | 2003-06-23 | 2006-03-29 | Consiglio Nazionale Delle Ricerche Infm Istituto Nazionale Per La Fisica Della Materia | A nano impression lithographic process which involves the use of a die having a region able to generate heat |
| US20080099175A1 (en) * | 2006-10-30 | 2008-05-01 | Jinn P. Chu | Method for in-gas micro/nanoimprinting of bulk metallic glass |
| CN101298097A (en) * | 2007-04-30 | 2008-11-05 | 中国科学院金属研究所 | Method for processing outer casing of bulk amorphous alloy electronic product and processing device |
| CN101249938A (en) * | 2008-02-26 | 2008-08-27 | 浙江大学 | Pneumatic micro-nano imprint demoulding structure |
| CN101406925A (en) * | 2008-11-18 | 2009-04-15 | 浙江大学 | Method for device for forming metal micro-thixotropy in semi-solid state assistant by supersonic vibration |
Non-Patent Citations (1)
| Title |
|---|
| 《中国博士学位论文全文数据库工程科技I辑》 20080515 贺永 聚合物微热压过程理论及其装备技术研究 1-6 , 第5期 2 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI460139B (en) * | 2011-07-29 | 2014-11-11 | Young Optics Inc | Manufacture method and manufacture system of glass product and electronic device |
| CN104302424A (en) * | 2012-02-29 | 2015-01-21 | 兵神技研股份有限公司 | Method for molding amorphous alloy, and molded object produced by said molding method |
| CN104302424B (en) * | 2012-02-29 | 2017-03-08 | 兵神技研股份有限公司 | The manufacturing process of amorphous alloy and the formed products being manufactured using this manufacturing process |
| CN103962434A (en) * | 2014-05-07 | 2014-08-06 | 华中科技大学 | Electroplastic forming method for block metallic glass and device thereof |
| CN103962434B (en) * | 2014-05-07 | 2016-06-01 | 华中科技大学 | The Electroplastic forming method of a kind of block metal glass workpiece and device thereof |
| CN107790536A (en) * | 2017-10-17 | 2018-03-13 | 深圳大学 | Glassy metal embossing forming device |
| CN113637930A (en) * | 2021-07-22 | 2021-11-12 | 武汉大学 | Preparation method of metal glass three-dimensional structure and sensing application thereof |
| CN113637930B (en) * | 2021-07-22 | 2022-04-15 | 武汉大学 | Preparation method of metal glass three-dimensional structure and sensing application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101829772B (en) | 2011-11-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101829772B (en) | Thermoplasticity shaping and processing method of metal glass micro construction member | |
| CN104668504A (en) | Casting forming equipment and process for amorphous alloy component | |
| CN203578719U (en) | Amorphous alloy element casting forming equipment | |
| CN203917913U (en) | A kind of cold isostatic compaction mould | |
| CN204953630U (en) | Ejecting formula blanking die | |
| CN111906271A (en) | Vacuum die-casting die for amorphous alloy flexible gear of harmonic reducer and method thereof | |
| CN101920282A (en) | Technical method for multiple-point modeless shaping of upper cover plate of bogie | |
| CN202428529U (en) | Isostatic-pressing forming mold for manufacturing ceramic tube shell | |
| CN106584012B (en) | A kind of amorphous alloy shaping methods | |
| CN101947853B (en) | Preparation method of amorphous alloy mold and application thereof in micro-flow groove forming | |
| CN208375822U (en) | A kind of injection mold structure that quickly can be opened and cool down | |
| CN102825111A (en) | Fast molding mechanism for negative angle of die processing product | |
| CN101867267A (en) | Technology for manufacturing neodymium iron boron (NdFeB) magnetic tile used for radial oriented motor and moulding mould thereof | |
| CN109622769A (en) | A kind of bracket mould | |
| CN108819108A (en) | A kind of mold with compression apparatus in plain type | |
| CN210702407U (en) | Three-die-sinking core shooter | |
| CN203426441U (en) | Arrow bracket sintering jig in metal injection molding technology | |
| CN203449499U (en) | Mould for superplastic forming | |
| CN108909007B (en) | Graphene die-casting forming process | |
| CN208375837U (en) | A kind of mold with compression apparatus in plain type | |
| CN208696259U (en) | TJM ceramic precision casting magnesium ingot mold | |
| CN208146889U (en) | A kind of die casting for automobile cylinder cover | |
| CN214872954U (en) | Precision mold with accurate positioning function | |
| CN206492929U (en) | A kind of blade sintering tool in metal injection moulding technique | |
| CN207140212U (en) | A kind of inner card cage stripper apparatus of automobile lamp injection mold |
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: 20111102 Termination date: 20160526 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |