CN206952137U - One kind casting equipment - Google Patents
One kind casting equipment Download PDFInfo
- Publication number
- CN206952137U CN206952137U CN201720936416.3U CN201720936416U CN206952137U CN 206952137 U CN206952137 U CN 206952137U CN 201720936416 U CN201720936416 U CN 201720936416U CN 206952137 U CN206952137 U CN 206952137U
- Authority
- CN
- China
- Prior art keywords
- vacuum
- stalk
- interface
- furnace shell
- body frame
- 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
Landscapes
- Crucibles And Fluidized-Bed Furnaces (AREA)
Abstract
One kind casting equipment, it is characterized in that：Including pressure stove mechanism, elevating mechanism, vacuum forming, charging protection mechanism；Including being provided with workbench by body frame, chuck furnace shell is provided with body frame, crucible pad is provided with chuck furnace shell, crucible, refractory layer, induction coil are provided with base, rotation seal ring is provided with chuck furnace shell, the elevating mechanism is provided with hydraulic cylinder, the vacuum forming mechanism, using the mode of heating for having intermediate frequency and high frequency input switching control function, make melting stirring more thorough, using stalk sheath, prevent the volatile matter of high melt from polluting stalk；Stalk is blown slag open under the thrust of argon gas into the high temperature aluminium liquid after melting through gas permeable devices, ceramic filter screen using the inert gas in vacuum (-tight) housing, prevent filter screen dry slag；The aluminium liquid of feeding intracavitary is carried out pressurization feeding to cast parts in time using the vacuum that is set on vacuum interface, inert gas pressurization rapid switching valve, prevent that shrinkage porosite from occurring in product, ensure aluminium alloy castings zero defect.
Description
Technical field
The application is related to casting field, specifically a kind of casting equipment.
Background technology
Prior art, the patent No.：CN105154699A, proprietary term：A kind of preparation method of fire resistant aluminum alloy material, it is public
The preparation method for Al alloy composite sintered products is opened；
The patent No.：CN104313407A proprietary terms：A kind of fire resistant aluminum alloy, disclose a kind of fusing point and be less than 850 DEG C
Aluminium alloy；
The patent No.：CN1873035A, proprietary term：High temperature aluminium alloys, announcement is a kind of component of high temperature aluminium alloys and phase
Technique is closed, deemed withdrawal；But with high-tech development, light, cheap, dystectic Al-alloy parts are produced
The urgent need articles for use of the high-end industry such as industry, Aero-Space, production fusing point up to 1200 degree of zero defect Al-alloy parts be even more aviation
Industry development is asked.
Utility model content
The application is in view of the above-mentioned problems, provide a kind of casting equipment.
According to the technical scheme of the application：One kind casting equipment, it is characterized in that：Including pressure stove mechanism, elevating mechanism, true
Sky shaping, charging protection mechanism.
The pressure stove mechanism, including body frame 45, it is provided with the body frame 45 and hangs cylinder 1, be provided with by the body frame 45
Workbench 46, handrail 47, stair 48；The body frame 45 is arranged with stove pin 37, and chuck furnace shell 27, chuck are provided with stove pin 37
Crucible pad 36 is provided with furnace shell 27, base is provided with crucible pad 36, crucible 28, refractory layer 29, induction coil 30 are provided with base,
Rotation seal ring 25 is provided with chuck furnace shell 27, revolves in seal ring 25 and is provided with bell 24, table 19, charging window are provided with bell 24
21st, form 22, the both sides of the table 19 are provided with table suspension ring 20, closure 18, closure are provided with the table 19
Heating mantle 17 is provided with 18, elevating mechanism is provided with table 19；
Rotation seal ring 25 both sides are provided with boosting-rod 26；
The both sides of the chuck furnace shell 27 are respectively arranged with argon filling interface 31, vacuum adapter 35；
Contact force table 32 is provided with the argon filling interface 31；
Contact vacuum meter 33 is provided with the vacuum adapter 35；
The power supply of the induction coil 30 is imported by water-cooled cable 34；
Vacuum forming mechanism is provided with the vaccum bench 15；
The elevating mechanism is provided with hydraulic cylinder 8, and the base of the hydraulic cylinder 8 is arranged on vaccum bench 15, the hydraulic pressure
The hydraulic cylinder rod 16 of cylinder 8 is arranged on table 19, and stalk interface 14, the stalk interface 14 are provided with the table 19
The heating mantle 17 that lower outer is set can lift with the lifting of vaccum bench 15 in closure 18；
The vacuum forming mechanism, it is included on vaccum bench 15 and is provided with vacuum (-tight) housing 2, mould 5, set on stalk interface 14
It is equipped with stalk temperature measuring head；The side of the vacuum (-tight) housing 2 is provided with access flap 9, vacuum interface 4, is provided with the access flap 9
Mould thermometric interface 10, cooling outgoing interface 11, accessing port 12, stalk thermometric interface 13 are cooled down, set on the vacuum interface 4
There is vacuum contact table 3, be provided with the vacuum (-tight) housing 2 and hang cylinder rod 1；
The charging protection mechanism, it is included in the charging window 21 on bell 24 and is provided with feed bin mirror 43, stalk protection
Set control handle 40；Sealing 42 is provided with the feed bin mirror, control handle 39 is provided with sealing 42, it is described to control under handle
Feed bin 41 is connected, stalk protective case control handle 40 lower end is provided with stalk sheath 44, prevents waving for high melt
Stimulating food pollutes stalk.
Feeding chamber 6, product chamber 7 are provided with the mould 5；
Supply control system 38 is provided with the casting equipment；
Vacuum chamber is provided with the shell of the heating mantle 17, appearance is bright and clean；Stalk is provided with the heating mantle 17
23；
The control handle can control feed bin to be fed into crucible 28 outside feed bin mirror；
The bottom of the vacuum (-tight) housing 2 is provided with to be sealed and fixed device with vaccum bench 15；
The bottom of product chamber 7 of the mould 5 seals with stalk interface 14；
The chuck furnace shell 27, bell 24 have water cooling function；
The inwall of chuck furnace shell 27 has radiation proof, antifogging coatling；
High temperature resistant two-way sealing ring is provided with the rotation seal ring 25, can be in vacuum with being sealed under pressure two states；
The mould upstream has heater, the temperature of feeding chamber is higher than product chamber, for carrying out pressurization benefit to cast parts
Contracting；
The pressure stove can work under vacuum conditions；
The pressure stove can work under pressure state；
The stalk uses silicon nitride combined silicon carbide, and surface treated, and the crucible is using graphite ceramic series；
The power supply of induction coil input is and changeable by two kinds of intermediate frequency and high frequency；
Lock sealing device is provided between the vacuum (-tight) housing and vaccum bench；
Vacuum is provided with the vacuum interface, pressurization is switched fast wealthy, complete vacuum suction and turn with the quick of pressurization
Change；
Gas permeable devices are provided with the feeding chamber, meet the need of die cavity suction and the pressurization to cast parts；
The stalk interface in mold cavity interface with being provided with ceramic filter screen；
Crucible, stalk, mould in the equipment work in inert gas.
The application's is had technical effect that, vacuum (-tight) housing is sling using cylinder is hung, convenient to switch mould；Using retraction hydraulic cylinder,
Decline vaccum bench, facilitate the installation of stalk or inhale casting；Grasped using the workbench, handrail, stair that are arranged at by body frame are convenient
It is vertical；Using the pressure stove that can be worked under pressure and vacuum two states, make the heating of equipment, melting, fill type, shaping all in
In inert gas, high temperature aluminium alloys oxide-free generation in liquid and forming process is effectively ensured, ensures the purity of product；
Using the mode of heating for having intermediate frequency and high frequency input switching control function, make melting stirring more thorough, be incubated static easy to control；Adopt
With stalk sheath, prevent the volatile matter of high melt from polluting stalk；Middle setting is connect using stalk interface and mold cavity
Ceramic filter screen, the aluminum alloy melt for entering mould is filtered, makes casting process more clean, effectively prevents product to be mingled with；
Make stalk blow slag entrance open under the thrust of argon gas through gas permeable devices, ceramic filter screen using the inert gas in vacuum (-tight) housing to melt
High temperature aluminium liquid after refining, prevents filter screen dry slag；Using set on vacuum interface vacuum, inert gas pressurization rapid switching valve
The aluminium liquid of feeding intracavitary is carried out pressurization feeding to cast parts in time, prevent product from shrinkage porosite occur, ensure that aluminium alloy castings is intact
Fall into, produce the Al-alloy parts that light, cheap fusing point is up to 1200 degree, meet the high-end production such as modern industry, Aero-Space
The need of industry.
Brief description of the drawings
Fig. 1 is a kind of casting equipment configuration schematic diagram of the application.
Embodiment
The embodiment in the application is described further below in conjunction with the accompanying drawings.
In Fig. 1, including hang cylinder 1, vacuum (-tight) housing 2, vacuum contact table 3, vacuum interface 4, mould 5, feeding chamber 6, product chamber 7,
Hydraulic cylinder 8, access flap 9, mould thermometric interface 10, cooling outgoing interface 11, cooling accessing port 12, stalk thermometric interface 13, liter
Liquid pipe interface 14, vaccum bench 15, hydraulic cylinder rod 16, heating mantle 17, closure 18, table 19, table suspension ring 20, charging window 21,
Form 22, stalk 23, bell 24, rotation seal ring 25, boosting-rod 26, chuck furnace shell 27, crucible 28, refractory layer 29, induction coil 30,
Argon filling interface 31, contact force table 32, contact vacuum meter 33, water-cooled cable 34, vacuum adapter 35, crucible pad 36, stove pin 37, supply
Control system 38, control handle 39, protective case control handle 40, feed bin 41, sealing 42, feed bin mirror 43, stalk sheath 44, master
Frame 45, workbench 46, handrail 47, stair 48 etc..
As illustrated, the application is a kind of casting equipment, including pressure stove mechanism, elevating mechanism, vacuum forming mechanism.
The pressure stove mechanism, including body frame 45, hang cylinder 1, workbench 46, handrail 47, stair 48, stove pin 37, set furnace shell
27th, crucible pad 36, crucible 28, refractory layer 29, induction coil 30, water-cooled cable 34, rotation seal ring 25, bell 24, table 19, table suspension ring
20th, high temperature resistant two-way sealing ring, closure 18, charging window 21, form 22, feed bin, feed bin control handle；The cylinder 1 that hangs is set
In on body frame 45, the workbench 46, handrail 47, stair 48 are arranged at by body frame 45；The cylinder seat for hanging cylinder 1 is arranged at body frame
On 45, the cylinder rod for hanging cylinder 1 is connected with the top of vacuum (-tight) housing 2；The chuck furnace shell of the pressure stove is arranged on stove pin 37；It is described
Crucible pad 36 is placed in chuck furnace shell, and the base is arranged on crucible pad 36, and the induction coil 30 is arranged on base, described heat-resisting
Layer 29 is arranged in induction coil 30, and the crucible 28 is arranged in refractory layer 29, and the rotation seal ring 25 is arranged at chuck furnace shell 27
On, the boosting-rod 26 is arranged at rotation seal ring 25 both sides, and the high temperature resistant two-way sealing ring is arranged in rotation seal ring 25；The stove
Lid 24 is provided with waterway, is arranged in rotation seal ring 25, can be separated after the lifting of table suspension ring 20 with chuck furnace shell 27, convenient to add
Material etc.；The table 19 is arranged on bell 24, and the charging window 21, form 22 are arranged at the both sides of bell 24, and the feed bin is set
It is placed in and is arranged under charging window 21, the feed bin control handle is connected with feed bin, and the feed bin control handle is arranged at charging window
On, storehouse controls handle lower end to be connected with charging window with sealing ring；The closure 18 is arranged in table 19, the elevating mechanism
It is arranged on table 19；The bell 24 is Double-layer water cold mould.
The elevating mechanism includes hydraulic cylinder 8, hydraulic cylinder rod 16, heating mantle 17, stalk 23, stalk interface 14, institute
State the top of hydraulic cylinder rod 16 to be connected with table 19, the stalk 23 is arranged in heating mantle 17, and the heating mantle 17 is arranged at
In closure 18, the stalk interface 14 is arranged in vaccum bench 15, and the hydraulic cylinder 8 is arranged on vaccum bench 15, vacuum
Platform 15, heating mantle 17 can the oscilaltion with hydraulic cylinder rod flexible, make inert gas of the stalk in vacuum (-tight) housing through ventilative
Device, ceramic filter screen thrust under blow high temperature aluminium liquid of the slag into melting, vacuum after static open.
The vacuum forming mechanism, including vaccum bench 15, vacuum (-tight) housing 2, suspension ring 1, stalk interface 14, stalk thermometric
Head, mould 5, access flap 9, thermometric interface 10, cooling outgoing interface 11, cooling accessing port 12, stalk thermometric interface 13, vacuum connect
Mouth 4, vacuum contact table 3；The vacuum (-tight) housing 2 is arranged on vaccum bench 15, and the stalk interface 14 is arranged in vaccum bench 15,
The stalk temperature measuring head is arranged in stalk interface 14, and the mould 5 is arranged on stalk interface 14, the access flap
9th, vacuum interface 4 is arranged at the outside of vacuum (-tight) housing 2, and the vacuum contact table 3 is arranged on vacuum interface 4；The thermometric interface
10th, outgoing interface 11, cooling accessing port 12, stalk thermometric interface 13 is cooled down to be arranged on access flap 9, the thermometric interface 10,
Cooling outgoing interface 11, the inner of cooling accessing port 12 are connected with the temperature measuring point on mould, coolant interface respectively, and the stalk is surveyed
The inner of warm interface 13 is connected with stalk temperature measuring head.
The charging protection mechanism, including feed bin mirror 43, sealing 42, control handle 39, splicing storehouse 41, protective case control handle
Handle 40, stalk sheath 44；The feed bin mirror 43 is arranged in charging window 21, and the sealing 42 is arranged in feed bin mirror 43, institute
State control handle 39 to be arranged in sealing 42, the splicing storehouse 41 is connected with the inner of control handle 39；The protective case control
Handle 40, which is arranged at, to be added on Packed bell 24, and the lumen end of the protective case control handle 40 connects with stalk sheath 44
Connect, prevent the volatile matter of high melt from polluting stalk.
The feeding chamber 6, product chamber 7 are arranged in mould 5, and the gas permeable devices are arranged at the top of feeding chamber 6；
The supply control system 38 is arranged in this casting equipment；
Set polycrystalline cotton in the vacuum chamber to be arranged in the shell of heating mantle 17, heating mantle high-temperature heat-resistance, appearance are bright and clean；Institute
Stalk 23 is stated to be arranged in heating mantle 17；
The control handle can control feed bin to be fed into crucible 28 outside feed bin mirror；
The bottom of the vacuum (-tight) housing 2 sealed fixed with vaccum bench 15；
The bottom of product chamber 7 of the mould 5 seals with stalk interface 14；
The chuck furnace shell 27, bell 24 have water cooling function；
The chuck furnace shell 27, the inwall of bell 24 have radiation proof, antifogging coatling；
The high temperature resistant two-way sealing ring is arranged in rotation seal ring 25；
The pressure stove can work under vacuum conditions；
The pressure stove can work under pressure state；
The stalk uses silicon nitride combined silicon carbide, and surface treated, and the crucible is using graphite ceramic series；
The power supply of induction coil input is and changeable by two kinds of intermediate frequency and high frequency；
The lock sealing device is arranged between vacuum (-tight) housing and vaccum bench；
It is described be switched fast it is wealthy be arranged on vacuum interface, the other end and argon filling pressurization interface are connected, and can make vacuum suction
With argon filling pressurization rapid translating；
Gas permeable devices on the feeding chamber, meet the need of die cavity suction and the pressurization to cast parts；
Feeding chamber after the heating can carry out pressurization feeding to cast parts in time；
The ceramic filter screen is arranged in stalk interface and mold cavity interface；
Crucible, stalk, mould in the equipment work in inert gas atmosphere.
The application, vacuum (-tight) housing is sling using the hydraulic crane cylinder being arranged on body frame, it is convenient to switch mould；Using retraction hydraulic pressure
Cylinder, decline vaccum bench, facilitate the installation of stalk or inhale casting；Using the pressure that can be worked under pressure and vacuum two states
Stove, make the heating of equipment, melting, fill type, shaping all in the gas of inert gas, ensureing high temperature aluminium alloys in liquid and shaping
During oxide-free generation, ensure the purity of product；Using the heating side for having intermediate frequency and high frequency input switching control function
Formula, make melting stirring more thorough, be incubated static easy to control；Using stalk sheath, prevent the volatile matter of high melt pollutes from rising
Liquid pipe；The ceramic filter screen of middle setting is connect using stalk interface and mold cavity, the aluminum alloy melt for entering mould is filtered,
Make casting process more clean, effectively prevent product to be mingled with；Using the inert gas in vacuum (-tight) housing through gas permeable devices, ceramic filtering
Net makes stalk blow slag open under the thrust of argon gas into the high temperature aluminium liquid after melting, prevents filter screen dry slag；Using in vacuum
The vacuum that is set on interface, inert gas pressurization rapid switching valve enable the aluminium liquid of feeding intracavitary to carry out pressurization benefit to cast parts in time
Contracting, prevents product from shrinkage porosite occur, casts out the light, cheap of no product defects, fusing point is up to 1200 degree of Al-alloy parts,
Meet the need of the high-end industry such as modern industry, Aero-Space.
Claims (1)
1. one kind casting equipment, it is characterized in that：Including pressure stove mechanism, elevating mechanism, vacuum forming, charging protection mechanism；
The pressure stove mechanism, including body frame (45), it is provided with the body frame (45) and hangs cylinder (1), is set by the body frame (45)
It is equipped with workbench (46), handrail (47), stair (48)；The body frame (45) is arranged with stove pin (37), and stove pin is set on (37)
There is chuck furnace shell (27), crucible pad (36) is provided with chuck furnace shell (27), base is provided with crucible pad (36), is provided with base
Crucible (28), refractory layer (29), induction coil (30), rotation seal ring (25) is provided with chuck furnace shell (27), is set in rotation seal ring (25)
Bell (24) is equipped with, table (19), charging window (21), form (22), the both sides of the table (19) are provided with bell (24)
Table suspension ring (20) are provided with, closure (18) is provided with the table (19), closure is provided with heating mantle in (18)
(17), it is provided with elevating mechanism on table (19)；
Described rotation seal ring (25) both sides are provided with boosting-rod (26)；
The both sides of the chuck furnace shell (27) are respectively arranged with inflatable interface (31), vacuum adapter (35)；
Contact force table (32) is provided with the inflatable interface (31)；
Contact vacuum meter (33) is provided with the vacuum adapter (35)；
The power supply of the induction coil (30) is imported by water-cooled cable (34)；
Vacuum forming mechanism is provided with the vaccum bench (15)；
The elevating mechanism is provided with hydraulic cylinder (8), and the base of the hydraulic cylinder (8) is arranged on vaccum bench (15), the liquid
The hydraulic cylinder rod (16) of cylinder pressure (8) is arranged on table (19), and stalk interface (14) is provided with the table (19), described
The heating mantle (17) that stalk interface (14) lower outer is set can rise with the lifting of vaccum bench (15) in closure (18)
Drop；
The vacuum forming mechanism, it is included on vaccum bench (15) and is provided with vacuum (-tight) housing (2), mould (5), stalk interface (14)
On be provided with stalk temperature measuring head；The side of the vacuum (-tight) housing (2) is provided with access flap (9), vacuum interface (4), the interface
Mould thermometric interface (10), cooling outgoing interface (11), cooling accessing port (12), stalk thermometric interface are provided with lid (9)
(13) vacuum contact table (3), is provided with the vacuum interface (4), the top of the vacuum (-tight) housing (2) is connected with hanging cylinder (1)；
The charging protection mechanism, it is included in the charging window (21) on bell (24) and is provided with feed bin mirror (43), stalk guarantor
Sheath control handle (40)；Sealing (42) is provided with the feed bin mirror, control handle (39) is provided with sealing (42), it is described
Control and feed bin (41) is connected under handle, described stalk protective case control handle (40) lower end is provided with stalk sheath (44)；
Feeding chamber (6), product chamber (7) are provided with the mould (5)；
Chuck furnace shell (27) bottom is provided with stove pin (37)；
Supply control system (38) is provided with the casting equipment；
Vacuum chamber is provided with the shell of the heating mantle (17), stalk (23) is provided with the heating mantle (17)；
Lock sealing device is provided between the vacuum (-tight) housing and vaccum bench；
Gas permeable devices are provided with the feeding chamber；
The stalk interface in mold cavity interface with being provided with ceramic filter screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720936416.3U CN206952137U (en) | 2017-07-20 | 2017-07-20 | One kind casting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720936416.3U CN206952137U (en) | 2017-07-20 | 2017-07-20 | One kind casting equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206952137U true CN206952137U (en) | 2018-02-02 |
Family
ID=61381637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720936416.3U Expired - Fee Related CN206952137U (en) | 2017-07-20 | 2017-07-20 | One kind casting equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206952137U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110207492A (en) * | 2019-07-05 | 2019-09-06 | 无锡刚正精密吸铸有限公司 | Convenient type vacuum melting furnace |
-
2017
- 2017-07-20 CN CN201720936416.3U patent/CN206952137U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110207492A (en) * | 2019-07-05 | 2019-09-06 | 无锡刚正精密吸铸有限公司 | Convenient type vacuum melting furnace |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103170596B (en) | Multipurpose vacuum casting device | |
| US5299619A (en) | Method and apparatus for making intermetallic castings | |
| WO2016112871A1 (en) | Titanium-based alloy induction smelting bottom leakage type vacuum suction casting device and control method | |
| US10913111B2 (en) | Method for vacuum smelting and variable pressure solidification forming aluminum alloy piece with ultra-thin wall and high gas tightness | |
| CN101745625B (en) | Multifunctional vacuum melting furnace | |
| CN104190900A (en) | Method for casting and forming TiAl-based alloy vent valve | |
| CN112648847B (en) | Ultrahigh-temperature vacuum induction smelting furnace | |
| CN107321961A (en) | A kind of aluminium alloy thin-walled casting semi solid-state forming machine of crucible furnace formula compression solidification | |
| CN100554461C (en) | A kind of preparation method of nickel aluminum vanadium alloy | |
| CN206952137U (en) | One kind casting equipment | |
| CN107457408A (en) | The sensing atomization of continous way cold crucible prepares titanium valve equipment | |
| CN101342586B (en) | Equipment and process for casting multi-branch steel ingot with vacuum spill method and liquid steel | |
| CN107234226A (en) | One kind casting equipment | |
| AU2001261789B2 (en) | Countergravity casting method and apparatus | |
| CN113290232B (en) | Reverse gravity filling forming method for large-size complex amorphous alloy component | |
| CN206952138U (en) | A kind of machine for casting high-melting-point Al-alloy parts | |
| CN105486081B (en) | A kind of high temperature can oxygen-enriched pressurize sintering shell stove | |
| CN202655581U (en) | High-vacuum secondary charging precision continuous casting device | |
| CN208178424U (en) | The induction atomization of continous way cold crucible prepares titanium valve equipment | |
| CN207043323U (en) | A kind of casting equipment of high-melting-point zero defect Al-alloy parts | |
| CN206828617U (en) | Vacuum melting nickel ingot produces inert gas protection device | |
| CN107570687A (en) | A kind of vacuum casting device and pouring procedure for reducing aluminium alloy castings crystallite dimension | |
| CN107243617A (en) | A kind of casting equipment of high-melting-point zero defect Al-alloy parts | |
| CN107234227A (en) | A kind of machine for casting high-melting-point Al-alloy parts | |
| CN209830260U (en) | Large-scale high-temperature high-strength material vacuum precision casting equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180202 Termination date: 20180720 |