CN107234227A - A kind of machine for casting high-melting-point Al-alloy parts - Google Patents
A kind of machine for casting high-melting-point Al-alloy parts Download PDFInfo
- Publication number
- CN107234227A CN107234227A CN201710628227.4A CN201710628227A CN107234227A CN 107234227 A CN107234227 A CN 107234227A CN 201710628227 A CN201710628227 A CN 201710628227A CN 107234227 A CN107234227 A CN 107234227A
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- Prior art keywords
- vacuum
- stalk
- interface
- furnace shell
- casting
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D18/00—Pressure casting; Vacuum casting
- B22D18/06—Vacuum casting, i.e. making use of vacuum to fill the mould
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Crucibles And Fluidized-Bed Furnaces (AREA)
Abstract
A kind of machine for casting high-melting-point Al-alloy parts, it is characterized in that：Including pressure stove mechanism, elevating mechanism, vacuum forming, charging protection mechanism；Including being provided with chuck furnace shell, crucible pad is provided with chuck furnace shell, it is provided with base on crucible, refractory layer, induction coil, chuck furnace shell and is provided with rotation seal ring, suction quarrel device is provided with the upside of the chuck furnace shell, the elevating mechanism is provided with hydraulic cylinder, the vacuum forming mechanism, using the mode of heating for having intermediate frequency to input switching control function with high frequency, makes melting stirring more thorough, using stalk sheath, prevent the volatile matter of high melt from polluting stalk；Stalk is blown the high temperature aluminium liquid after molten quarrel enters melting open under the thrust of inert gas through gas permeable devices, ceramic filter screen using the inert gas in vacuum (-tight) housing, prevent the viscous quarrel of filter screen；The aluminium liquid for enabling feeding intracavitary using vacuum, inert gas the pressurization rapid switching valve set on vacuum interface carries out pressurization feeding to cast parts in time, it is ensured that aluminium alloy castings zero defect.
Description
Technical field
The application is related to casting field, specifically a kind of machine for casting high-melting-point Al-alloy parts.
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, discloses a kind of fusing point and is 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, production light weight, cheap, dystectic Al-alloy parts are
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.
The content of the invention
The application is in view of the above-mentioned problems, provide a kind of machine for casting high-melting-point Al-alloy parts.
According to the technical scheme of the application：A kind of machine for casting high-melting-point Al-alloy parts, it is characterized in that：Including pressure stove
Mechanism, elevating mechanism, vacuum forming, charging protection mechanism.
It is provided with the pressure stove mechanism, including body frame 45, the body frame 45 and hangs cylinder 1, is provided with by the body frame 45
Traveling table 51 is provided with workbench 46, handrail 47, stair 48, workbench 46；The body frame 45 is arranged with stove pin 37, stove pin
Chuck furnace shell 27 is provided with 37, the upside of chuck furnace shell 27 is provided with suction quarrel device 50, chuck furnace shell 27 and is provided with crucible pad 36, crucible
It is provided with base, base to be provided with crucible 28, refractory layer 29, induction coil 30, chuck furnace shell 27 on pad 36 and is provided with rotation envelope
Ring 25, rotation seal ring 25 on be provided with rotation envelope motor 49, rotation seal ring 25 in be provided with bell 24, bell 24 be provided with table 19,
Feed window 21, form 22, and the both sides of the table 19, which are provided with table, withholds in 20, the table 19 and be provided with closure 18,
It is provided with closure 18 on heating mantle 17, table 19 and is provided with elevating mechanism；
The downside of rotation seal ring 25 is provided with gear 26, is connected thereto using rotation envelope motor 49, opens bell 24；
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 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 be lifted with the lifting of vaccum bench 15 in closure 18；
The vacuum forming mechanism, is included on vaccum bench 15 to be provided with vacuum (-tight) housing 2, mould 5, stalk interface 14 and sets
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, the access flap 9 and is provided with
Set on mould thermometric interface 10, cooling outgoing interface 11, cooling accessing port 12, stalk thermometric interface 13, the vacuum interface 4
Have to be provided with vacuum contact table 3, the vacuum (-tight) housing 2 and hang cylinder rod 1；
The charging protection mechanism, 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, is provided with sealing 42 under control handle 39, the control 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 is sealed 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 sealed under vacuum and 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, pressurization are provided with the vacuum interface and is switched fast wealthy, vacuum suction is completed and turns with the quick of pressurization
Change；
Gas permeable devices are provided with the feeding chamber, the need of die cavity suction and the pressurization to cast parts are met；
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, convenient switching mould are sling using cylinder is hung；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, be molded all in
In inert gas, high temperature aluminium alloys oxide-free generation in liquid and forming process is effectively ensured, it is ensured that the purity of product；
Using the mode of heating for thering is intermediate frequency to input switching control function with high frequency, make melting stirring more thorough, be incubated static easy to control；Adopt
Stalk sheath is used, prevents the volatile matter of high melt from polluting stalk；Middle setting is connect using stalk interface and mold cavity
Ceramic filter screen, filters to the aluminum alloy melt for entering mould, makes casting process more clean, effectively prevent product to be mingled with；
Stalk is blown molten quarrel open under the thrust of argon gas through gas permeable devices, ceramic filter screen using the inert gas in vacuum (-tight) housing and enter molten
High temperature aluminium liquid after refining, prevents the viscous quarrel of filter screen；Using vacuum, inert gas the pressurization rapid switching valve set on vacuum interface
The aluminium liquid of feeding intracavitary is carried out pressurization feeding to cast parts in time, prevent product from shrinkage porosite occur, it is ensured that aluminium alloy castings is intact
Fall into, produce the Al-alloy parts that light weight, cheap fusing point are 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 structural representation for the machine for casting high-melting-point Al-alloy parts 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, withhold 20, charging window 21, form
22nd, stalk 23, bell 24, rotation seal ring 25, gear 26, chuck furnace shell 27, crucible 28, refractory layer 29, induction coil 30, inflation connect
Mouth 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
System 38, control handle 39, protective case control handle 40, feed bin 41, sealing 42, feed bin mirror 43, stalk sheath 44, body frame 45,
Workbench 46, handrail 47, stair 48, rotation envelope motor 49, suction quarrel device 50, traveling table 51 etc..
As illustrated, the application is a kind of machine for casting high-melting-point Al-alloy parts, including pressure stove mechanism, lift
Structure, 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, withhold 20,
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 arranged at master
On 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 45
On, 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；The 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, the refractory layer
29 are arranged in induction coil 30, and the crucible 28 is arranged in refractory layer 29, and the rotation seal ring 25 is arranged on chuck furnace shell 27,
The gear 26 is arranged at the downside of rotation seal ring 25, and the high temperature resistant two-way sealing ring is arranged in rotation seal ring 25；The bell 24
Waterway is provided with, is arranged in rotation seal ring 25；It is described to withhold 20 outsides for being arranged at table 19, after being fastened with vaccum bench 15
Chuck furnace shell 27 is separated through hanging the lifting of cylinder 1, the related work such as convenient charging；The table 19 is arranged on bell 24, described
Charging window 21, form 22 are arranged at the both sides of bell 24, and the feed bin is arranged under charging window 21, and the feed bin controls handle
Handle is connected with feed bin, and the feed bin control handle is arranged on charging window, and storehouse controls handle lower end to be connected with charging window with sealing ring
Connect；The closure 18 is arranged in table 19, and the elevating mechanism is arranged on table 19；The bell 24 is Double water-cooled
Type.
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, 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
Blow high temperature aluminium liquid of the molten quarrel into melting, vacuum after static under device, the thrust of ceramic filter screen 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, cooling outgoing interface 11, cooling accessing port 12, stalk thermometric interface 13 are 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 is arranged at added with sealed 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 is sealed 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 gear 26 is arranged at the downside of rotation seal ring 25, and the rotation envelope motor 49 is arranged in rotation seal ring 25, with gear 26
Connection, for opening bell 24；
The quarrel device 50 of inhaling is provided with valve, is inhaled by the quarrel device sealing of the suction with spiral for being arranged at the upside of chuck furnace shell 27
Except molten quarrel；
The traveling table 51 is arranged at the inner side of workbench 46, and outer end can be connected with vaccum bench 15, convenient to place mould；
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, convenient switching mould are sling using the hydraulic crane cylinder being arranged on body frame；Using retraction hydraulic pressure
Cylinder, declines vaccum bench, facilitates the installation of stalk or inhales casting；Using the pressure that can be worked under pressure and vacuum two states
Stove, makes the heating of equipment, melting, fills type, is molded all in the gas of inert gas, it is ensured that high temperature aluminium alloys are in liquid and shaping
During it is oxide-free produce, it is ensured that the purity of product；Using the heating side for thering is intermediate frequency to input switching control function with high frequency
Formula, makes melting stirring more thorough, is 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, made
Casting process is more clean, effectively prevents product to be mingled with；Using the inert gas in vacuum (-tight) housing through gas permeable devices, ceramic filter screen
Stalk is blown the high temperature aluminium liquid that molten quarrel enters after melting open under the thrust of argon gas, prevent the viscous quarrel of filter screen；Connect using in vacuum
The vacuum that is set on mouth, 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 Al-alloy parts that the light weight of no product defects, cheap, fusing point are up to 1200 degree,
Meet the need of the high-end industry such as modern industry, Aero-Space.
Claims (9)
1. a kind of machine for casting high-melting-point Al-alloy parts, it is characterized in that：Including pressure stove mechanism, elevating mechanism, vacuum forming,
Feed protection mechanism；
The pressure stove mechanism, including body frame (45), the body frame (are provided with 45 and hang cylinder (1), set by the body frame (45)
Have in workbench (46), handrail (47), stair (48), workbench (46) and be provided with traveling table (51)；The body frame (45) is divided into
It is equipped with stove pin (37), stove pin (37) and is provided with chuck furnace shell (27), crucible pad (36), crucible pad is provided with chuck furnace shell (27)
(36) it is provided with base, base and is provided with crucible (28), refractory layer (29), induction coil (30)；On the chuck furnace shell 27
Side is provided with suction quarrel device 50；It is provided with the downside of rotation seal ring (25), the rotation seal ring (25) and is provided with the chuck furnace shell (27)
It is provided with gear (26), rotation seal ring (25) on bell (24), bell (24) and is provided with table (19), charging window (21), form
(22), the both sides of the table (19) are provided with table suspension ring (20), the table (19) and are provided with closure (18), sealing
Heating mantle (17) is provided with lid (18), table is provided with elevating mechanism on (19)；
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 be lifted with the lifting of vaccum bench (15) in closure (18)；
It is provided with the downside of the rotation seal ring (25) on the outside of gear (26), the rotation seal ring (25) and is provided with rotation envelope motor (49)；
The vacuum forming mechanism, 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, 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
Connection feed bin (41) under handle is controlled, 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；
It is provided with the shell of the heating mantle (17) in vacuum chamber, the heating mantle (17) and is provided with stalk (23)；
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.
The control handle can control feed bin to be fed into crucible outside feed bin mirror；
The product bottom of chamber end of the mould and stalk sealing joint；
The chuck furnace shell, bell have water cooling function；
The chuck furnace shell inwall has radiation proof, antifogging coatling.
2. a kind of casting is equipped according to claim 1, it is characterized in that：It is two-way that high temperature resistant is provided with the rotation seal ring
Sealing ring, can be sealed under vacuum and pressure two states.
3. a kind of casting is equipped according to claim 1, it is characterized in that：The mould upstream has heater, makes benefit
The temperature of contracting chamber is higher than product chamber, for carrying out pressurization feeding to cast parts.
4. a kind of casting is equipped according to claim 1, it is characterized in that：The pressure stove can work under vacuum conditions
Make.
5. a kind of casting is equipped according to claim 1, it is characterized in that：The pressure stove can be in work under pressure state
Make.
6. a kind of casting is equipped according to claim 1, it is characterized in that：The stalk uses nitride combined with silicon carbide
Silicon, and surface treated, the crucible is using graphite ceramic series.
7. a kind of casting is equipped according to claim 1, it is characterized in that：The power supply of induction coil input by intermediate frequency with
Two kinds of high frequency, and it is changeable.
8. a kind of casting is equipped according to claim 1, it is characterized in that：Vacuum is provided with the vacuum interface, is added
Being switched fast for pressure is wealthy, completes the rapid translating of vacuum suction and pressurization.
9. a kind of casting is equipped according to claim 1, it is characterized in that：The quarrel device of inhaling is provided with valve, by being arranged at
The quarrel device sealing of the suction with spiral on the upside of chuck furnace shell is passed to above crucible, absorbs molten quarrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710628227.4A CN107234227A (en) | 2017-07-20 | 2017-07-20 | A kind of machine for casting high-melting-point Al-alloy parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710628227.4A CN107234227A (en) | 2017-07-20 | 2017-07-20 | A kind of machine for casting high-melting-point Al-alloy parts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107234227A true CN107234227A (en) | 2017-10-10 |
Family
ID=59988451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710628227.4A Withdrawn CN107234227A (en) | 2017-07-20 | 2017-07-20 | A kind of machine for casting high-melting-point Al-alloy parts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107234227A (en) |
-
2017
- 2017-07-20 CN CN201710628227.4A patent/CN107234227A/en not_active Withdrawn
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20171010 |