CN104669702A - Graphite heat conduction film compound block and manufacturing method thereof - Google Patents
Graphite heat conduction film compound block and manufacturing method thereof Download PDFInfo
- Publication number
- CN104669702A CN104669702A CN201310635908.5A CN201310635908A CN104669702A CN 104669702 A CN104669702 A CN 104669702A CN 201310635908 A CN201310635908 A CN 201310635908A CN 104669702 A CN104669702 A CN 104669702A
- Authority
- CN
- China
- Prior art keywords
- rete
- graphite
- graphite heat
- heat conduction
- composite block
- 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
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 79
- 229910002804 graphite Inorganic materials 0.000 title claims abstract description 76
- 239000010439 graphite Substances 0.000 title claims abstract description 76
- 150000001875 compounds Chemical class 0.000 title abstract 4
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- 239000002131 composite material Substances 0.000 claims abstract description 32
- 239000000463 material Substances 0.000 claims abstract description 13
- 238000002360 preparation method Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 claims description 3
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 239000005038 ethylene vinyl acetate Substances 0.000 claims description 3
- 238000003475 lamination Methods 0.000 claims description 3
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 238000006116 polymerization reaction Methods 0.000 claims description 3
- 229920000098 polyolefin Polymers 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 239000002313 adhesive film Substances 0.000 abstract description 5
- 230000004888 barrier function Effects 0.000 abstract 1
- 239000012528 membrane Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001721 carbon Chemical group 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 230000000739 chaotic effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005087 graphitization Methods 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/266—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/005—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile
- B32B9/007—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile comprising carbon, e.g. graphite, composite carbon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
Landscapes
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Carbon And Carbon Compounds (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
Abstract
The invention discloses a graphite heat conduction film compound block and a manufacturing method thereof. The graphite heat conduction film compound block comprises a graphite heat conduction film and an adhesive film, wherein a plurality of through holes are formed in the graphite heat conduction film, and all or part of the through holes are filled with a material which is the same as that of the adhesive film. When the graphite heat conduction composite film is used, the end surface of the graphite heat conduction film is jointed with a heat source of a device to be cooled, and the graphite heat conduction film is fixed at the position by the adhesive film through the through holes formed in the graphite heat conduction film, so that the bonding reliability is guaranteed, and the graphite heat conduction film is in contact with the heat source without a barrier; therefore, the heat resistance between the graphite heat conduction film and the heat source can be effectively reduced, and the thermal conductivity of the graphite heat conduction film compound block along the thickness direction can be increased.
Description
Technical field
The present invention relates to high conduction graphite film field, particularly relate to a kind of graphite guide hotting mask composite block and preparation method thereof.
Background technology
Graphite is a kind of allotrope formed by carbon, and each carbon atom is wherein combined with adjacent three carbon atoms by covalent bond, forms hexagonal network structure.Due to the molecular structure that it is perfect, electronics can planar move freely, brings the calorifics of its uniqueness thus, and the performance such as electricity, chemistry can be widely used in the industry such as electronics, display, atomic energy and national defence.In nearest commercial Application, graphite film material is because have the heat conductivility of super metal material far away, and ultra-thin form and good bending resistance folding endurance, be widely used in the electronic devices and components field of electronical display product as mobile phone plane plate computer.
Macromolecule membrane obtains by the preparation of high conduction graphite film after high temperature graphitization process, and the plane aspect thermal conductivity of this high conduction graphite film can reach 800-2500W/mK, but its thickness direction thermal conductivity is only at 5-10W/mK.
Therefore, under existing condition, graphite film composite block how is increased in the thermal conductivity of thickness direction thus to realize graphite guide hotting mask composite block and preparation method thereof be this area technical problem urgently to be resolved hurrily.
Summary of the invention
The object of the present invention is to provide a kind of graphite guide hotting mask composite block and preparation method thereof.
To achieve the above object, the present invention adopts following technical scheme:
A kind of graphite guide hotting mask composite block, comprises graphite heat conducting rete and bonding rete, described graphite heat conducting rete has multiple through hole, and through hole is all or part of is filled by the material same with bonding rete.
Present invention also offers a kind of preparation method of graphite guide hotting mask composite block, said method comprising the steps of:
Step 1, bores a hole graphite heat conducting rete;
Step 2, by the graphite heat conducting rete after perforation and bonding rete alternative stacked, the number of plies can superpose arbitrarily as required;
Step 3, the graphite rete after laminate heated and bonding rete, make bonding rete melt, graphite rete combined closely and through hole is all or part of is filled by with the same material of rete that bonds;
Step 4, finally cools lamination, obtains high heat conduction composite block material.
Preferably, in above-mentioned graphite guide hotting mask composite block, the thermal conductivity of described graphite guide hotting mask composite block is at 500-2500W/mK, and thickness is at 5-100um.
Preferably, in above-mentioned graphite guide hotting mask composite block, described bonding rete is by one or more combination of polyester, polyolefin, Ethylene-vinyl acetate, poly-carbon resin, polyurethane, silica gel or epoxy resin.
Preferably, in above-mentioned graphite guide hotting mask composite block, described bonding rete can melt or polymerization at not higher than the temperature of 300 DEG C.
The invention discloses a kind of graphite guide hotting mask composite block and preparation method thereof, comprise graphite guide hotting mask and adhesive film, described graphite heat conducting rete has multiple through hole, through hole is all or part of is filled by the material same with bonding rete.Graphite heat conducting composite membrane provided by the present invention, in use the end face of graphite guide hotting mask is fitted with needing the device thermal source dispelled the heat, bonding rete is by the through hole on graphite guide hotting mask, graphite guide hotting mask is fixed on position, the reliability bondd can be ensured, can keep again graphite guide hotting mask and between thermal source, there is no the contact that intercepts, thus effectively reduce the thermal resistance between graphite guide hotting mask and thermal source, increase the thermal conductivity of graphite guide hotting mask composite block at thickness direction.
Accompanying drawing explanation
Graphite guide hotting mask composite block of the present invention and preparation method thereof is provided by following embodiment and accompanying drawing.
Fig. 1 is the structural representation of the graphite guide hotting mask composite block of one embodiment of the invention.
In figure, 1-bonds rete, 2-graphite heat conducting rete.
Detailed description of the invention
Below will be described in further detail graphite guide hotting mask composite block of the present invention and preparation method thereof.
Below with reference to accompanying drawings the present invention is described in more detail, which show the preferred embodiments of the present invention, should be appreciated that those skilled in the art can revise the present invention described here and still realize beneficial effect of the present invention.Therefore, following description is appreciated that extensively knowing for those skilled in the art, and not as limitation of the present invention.
In order to clear, whole features of practical embodiments are not described.They in the following description, are not described in detail known function and structure, because can make the present invention chaotic due to unnecessary details.Will be understood that in the exploitation of any practical embodiments, a large amount of implementation detail must be made to realize the specific objective of developer, such as, according to regarding system or the restriction about business, change into another embodiment by an embodiment.In addition, will be understood that this development may be complicated and time-consuming, but be only routine work to those skilled in the art.
For making object of the present invention, feature becomes apparent, and is further described the specific embodiment of the present invention below in conjunction with accompanying drawing.It should be noted that, accompanying drawing all adopts the form that simplifies very much and all uses non-ratio accurately, only in order to object that is convenient, the aid illustration embodiment of the present invention lucidly.
Referring to Fig. 1, is the structural representation of the graphite guide hotting mask composite block of one embodiment of the invention shown in Fig. 1.This composite block comprises graphite heat conducting rete 2 and bonding rete 1, and described graphite heat conducting rete has multiple through hole, and through hole is all or part of is filled by the material same with bonding rete.The thermal conductivity of described graphite guide hotting mask composite block is at 500-2500W/mK, and thickness is at 5-100um.Described bonding rete is by one or more combination of polyester, polyolefin, Ethylene-vinyl acetate, poly-carbon resin, polyurethane, silica gel or epoxy resin.Described bonding rete can melt or polymerization at not higher than the temperature of 300 DEG C.
The preparation method of this graphite guide hotting mask composite block is as follows:
Step 1, bores a hole graphite heat conducting rete;
Step 2, by the graphite heat conducting rete after perforation and bonding rete alternative stacked, the number of plies can superpose arbitrarily as required;
Step 3, the graphite rete after laminate heated and bonding rete, make bonding rete melt, graphite rete combined closely and through hole is all or part of is filled by with the same material of rete that bonds;
Step 4, finally cools lamination, obtains high heat conduction composite block material.
In sum, the invention discloses a kind of graphite guide hotting mask composite block and preparation method thereof, comprise graphite guide hotting mask and adhesive film, described graphite heat conducting rete has multiple through hole, through hole is all or part of is filled by the material same with bonding rete.Graphite heat conducting composite membrane provided by the present invention, in use the end face of graphite guide hotting mask is fitted with needing the device thermal source dispelled the heat, bonding rete is by the through hole on graphite guide hotting mask, graphite guide hotting mask is fixed on position, the reliability bondd can be ensured, can keep again graphite guide hotting mask and between thermal source, there is no the contact that intercepts, thus effectively reduce the thermal resistance between graphite guide hotting mask and thermal source, increase the thermal conductivity of graphite guide hotting mask composite block at thickness direction.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (5)
1. a graphite guide hotting mask composite block, is characterized in that, this composite block comprises graphite heat conducting rete and bonding rete, and described graphite heat conducting rete has multiple through hole, and through hole is all or part of is filled by the material same with bonding rete.
2. a preparation method for graphite guide hotting mask composite block, is characterized in that, said method comprising the steps of:
Step 1, bores a hole graphite heat conducting rete;
Step 2, by the graphite heat conducting rete after perforation and bonding rete alternative stacked, the number of plies can superpose arbitrarily as required;
Step 3, the graphite rete after laminate heated and bonding rete, make bonding rete melt, graphite rete combined closely and through hole is all or part of is filled by with the same material of rete that bonds;
Step 4, finally cools lamination, obtains high heat conduction composite block material.
3. method according to claim 2, is characterized in that, the thermal conductivity of described graphite guide hotting mask composite block is at 500-2500W/mK, and thickness is at 5-100um.
4. method according to claim 2, is characterized in that, described bonding rete is by one or more combination of polyester, polyolefin, Ethylene-vinyl acetate, poly-carbon resin, polyurethane, silica gel or epoxy resin.
5. method according to claim 2, is characterized in that, described bonding rete can melt or polymerization at not higher than the temperature of 300 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310635908.5A CN104669702A (en) | 2013-12-03 | 2013-12-03 | Graphite heat conduction film compound block and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310635908.5A CN104669702A (en) | 2013-12-03 | 2013-12-03 | Graphite heat conduction film compound block and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104669702A true CN104669702A (en) | 2015-06-03 |
Family
ID=53305531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310635908.5A Pending CN104669702A (en) | 2013-12-03 | 2013-12-03 | Graphite heat conduction film compound block and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104669702A (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106714502A (en) * | 2015-07-27 | 2017-05-24 | 联想(北京)有限公司 | Graphite radiating fin, manufacture method thereof, and electronic equipment |
| CN107484388A (en) * | 2017-07-28 | 2017-12-15 | 广东欧珀移动通信有限公司 | A kind of attaching method of graphite flake, mobile terminal and graphite flake |
| CN109177368A (en) * | 2018-09-06 | 2019-01-11 | 三峡大学 | A kind of graphite film lamination composite board and preparation method thereof |
| CN109310005A (en) * | 2017-07-26 | 2019-02-05 | 哈尔滨工业大学（威海） | A kind of graphite composite circuit board |
| CN110267502A (en) * | 2019-07-10 | 2019-09-20 | 东莞市源冠塑胶模具有限公司 | A kind of novel electron equipment cooling patch |
| CN110278693A (en) * | 2019-07-10 | 2019-09-24 | 东莞市源冠塑胶模具有限公司 | A kind of electronic equipment heat dissipation patch |
| CN110278694A (en) * | 2019-07-10 | 2019-09-24 | 东莞市源冠塑胶模具有限公司 | A kind of ultrathin type electronic equipment dissipating heat patch |
| WO2019205051A1 (en) * | 2018-04-26 | 2019-10-31 | 罗伯特·博世有限公司 | Block carbon material having super-high thermal conductivity and preparation method therefor |
| CN110815968A (en) * | 2019-09-26 | 2020-02-21 | 江苏晶华新材料科技有限公司 | Composite graphite heat-conducting film and preparation process thereof |
| CN112040722A (en) * | 2020-08-17 | 2020-12-04 | 苏州鸿凌达电子科技有限公司 | High-heat-flux graphite heat-conducting film module stacking method |
| CN113147115A (en) * | 2021-04-26 | 2021-07-23 | 常州富烯科技股份有限公司 | Heat-conducting gasket and preparation method thereof |
| CN113183544A (en) * | 2021-04-22 | 2021-07-30 | 常州富烯科技股份有限公司 | Heat-conducting gasket and preparation method thereof |
| CN113290958A (en) * | 2021-01-11 | 2021-08-24 | 常州富烯科技股份有限公司 | Graphene foam film enhanced heat conduction gasket and preparation method thereof |
| CN113628975A (en) * | 2020-05-07 | 2021-11-09 | 哈尔滨工业大学（威海） | High-thermal-conductivity complex and preparation method thereof |
| CN114523736A (en) * | 2022-02-28 | 2022-05-24 | 安徽碳华新材料科技有限公司 | High-performance artificial graphite high-conductivity film applied to heat dissipation structure |
-
2013
- 2013-12-03 CN CN201310635908.5A patent/CN104669702A/en active Pending
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106714502A (en) * | 2015-07-27 | 2017-05-24 | 联想(北京)有限公司 | Graphite radiating fin, manufacture method thereof, and electronic equipment |
| CN106714502B (en) * | 2015-07-27 | 2020-05-26 | 联想(北京)有限公司 | Method for manufacturing graphite heat sink, and electronic device |
| CN109310005A (en) * | 2017-07-26 | 2019-02-05 | 哈尔滨工业大学（威海） | A kind of graphite composite circuit board |
| CN107484388A (en) * | 2017-07-28 | 2017-12-15 | 广东欧珀移动通信有限公司 | A kind of attaching method of graphite flake, mobile terminal and graphite flake |
| CN107484388B (en) * | 2017-07-28 | 2019-09-24 | Oppo广东移动通信有限公司 | A kind of attaching method of graphite flake, mobile terminal and graphite flake |
| WO2019205051A1 (en) * | 2018-04-26 | 2019-10-31 | 罗伯特·博世有限公司 | Block carbon material having super-high thermal conductivity and preparation method therefor |
| CN112437722A (en) * | 2018-04-26 | 2021-03-02 | 罗伯特·博世有限公司 | Ultrahigh-thermal-conductivity block carbon material and preparation method thereof |
| CN109177368A (en) * | 2018-09-06 | 2019-01-11 | 三峡大学 | A kind of graphite film lamination composite board and preparation method thereof |
| WO2021003833A1 (en) * | 2019-07-10 | 2021-01-14 | 佘华伟 | Novel heat dissipation patch for electronic device |
| CN110278694A (en) * | 2019-07-10 | 2019-09-24 | 东莞市源冠塑胶模具有限公司 | A kind of ultrathin type electronic equipment dissipating heat patch |
| CN110278693A (en) * | 2019-07-10 | 2019-09-24 | 东莞市源冠塑胶模具有限公司 | A kind of electronic equipment heat dissipation patch |
| WO2021003832A1 (en) * | 2019-07-10 | 2021-01-14 | 佘华伟 | Heat-dissipation patch for electronic device |
| CN110267502A (en) * | 2019-07-10 | 2019-09-20 | 东莞市源冠塑胶模具有限公司 | A kind of novel electron equipment cooling patch |
| CN110815968B (en) * | 2019-09-26 | 2023-08-29 | 江苏晶华新材料科技有限公司 | Composite graphite heat conducting film and preparation process thereof |
| CN110815968A (en) * | 2019-09-26 | 2020-02-21 | 江苏晶华新材料科技有限公司 | Composite graphite heat-conducting film and preparation process thereof |
| CN113628975A (en) * | 2020-05-07 | 2021-11-09 | 哈尔滨工业大学（威海） | High-thermal-conductivity complex and preparation method thereof |
| CN112040722B (en) * | 2020-08-17 | 2021-05-18 | 苏州鸿凌达电子科技有限公司 | High-heat-flux graphite heat-conducting film module stacking method |
| CN112040722A (en) * | 2020-08-17 | 2020-12-04 | 苏州鸿凌达电子科技有限公司 | High-heat-flux graphite heat-conducting film module stacking method |
| CN113290958A (en) * | 2021-01-11 | 2021-08-24 | 常州富烯科技股份有限公司 | Graphene foam film enhanced heat conduction gasket and preparation method thereof |
| CN113290958B (en) * | 2021-01-11 | 2023-10-27 | 常州富烯科技股份有限公司 | Graphene foam film reinforced heat conduction gasket and preparation method thereof |
| CN113183544A (en) * | 2021-04-22 | 2021-07-30 | 常州富烯科技股份有限公司 | Heat-conducting gasket and preparation method thereof |
| CN113147115A (en) * | 2021-04-26 | 2021-07-23 | 常州富烯科技股份有限公司 | Heat-conducting gasket and preparation method thereof |
| CN114523736A (en) * | 2022-02-28 | 2022-05-24 | 安徽碳华新材料科技有限公司 | High-performance artificial graphite high-conductivity film applied to heat dissipation structure |
| CN114523736B (en) * | 2022-02-28 | 2024-02-09 | 安徽碳华新材料科技有限公司 | High-performance artificial graphite high-conductivity film applied to heat dissipation structure |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150603 |