CN209443074U - A kind of aluminium alloy smelting system - Google Patents

A kind of aluminium alloy smelting system Download PDF

Info

Publication number
CN209443074U
CN209443074U CN201821927498.6U CN201821927498U CN209443074U CN 209443074 U CN209443074 U CN 209443074U CN 201821927498 U CN201821927498 U CN 201821927498U CN 209443074 U CN209443074 U CN 209443074U
Authority
CN
China
Prior art keywords
aluminium alloy
water
melting furnace
cooling
alloy melting
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
Application number
CN201821927498.6U
Other languages
Chinese (zh)
Inventor
周翠华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201821927498.6U priority Critical patent/CN209443074U/en
Application granted granted Critical
Publication of CN209443074U publication Critical patent/CN209443074U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)

Abstract

The utility model relates to a kind of aluminium alloy smelting systems, including pedestal, pedestal is equipped with aluminium alloy melting furnace, the outer surface of aluminium alloy melting furnace is equipped with digital thermometer, the outside left of aluminium alloy melting furnace has installed digital temperature display, and digital thermometer passes through data line and connect with digital temperature display;Aluminium alloy melting furnace is equipped with water-cooling circulating system, the water-cooling circulating system includes cooling water circulation machine and cooling chamber, cooling chamber is mounted in the furnace wall of aluminium alloy melting furnace, the bottom of cooling water circulation machine is connected with water inlet line, one end of water inlet line is equipped with water polo, water polo is mounted in cooling chamber out, and the other end of water inlet line is equipped with water outlet pump, and water outlet pump is mounted on the bottom position of cooling water circulation machine.The utility model can be measured in real time the surface temperature of aluminium alloy melting furnace, carry out cooling control to aluminium alloy melting furnace and enable aluminum alloy to melting furnace to enable aluminum alloy to the temperature range that melting furnace is maintained at certain.

Description

A kind of aluminium alloy smelting system
Technical field
The utility model relates to a kind of smelting systems, and in particular to a kind of aluminium alloy smelting system.
Background technique
Melting furnace is a kind of novel high-efficiency and energy-saving aluminium melting furnace developed according to aluminium smelting technology in aluminium alloy, is mainly used for The fusing and heat preservation of aluminium ingot, the technique that it can meet well aluminium melting.The furnace is by melting furnace, crucible, heating element, bell Elevating mechanism, the composition such as electric appliance automatic temperature control system.Furnace shell is welded into cylindrical shape by fashioned iron and steel plate.Have in furnace body front lower portion One hole can make the melt in crucible flow out furnace by this hole for crucible because corrosion, oxidation generate crack and formed in the case of drip In vitro, so that operating room's burner hearth will not be damaged.Crucible furnace is very universal in aviation factory application, its advantage is that it is more motor-driven, The case where suitable for often replacing alloy designations and Batch Process, and its Melting Quality is also higher.It can be used for two kinds in plant produced Purposes: one is melting furnace is used as, heating method uses electric heating in aviation factory, also has using coal gas or heavy-oil heating. Electric heating is more convenient to control temperature, but fast compared with using electric heating using coal gas, heavy-oil heating heating, and fusing time is short, fusing The capacity of furnace crucible is also more bigger.Furnace body be often made rotatably, in order to molten metal from furnace into casting ladle metaideophone.It is another Kind is used as holding furnace, after molten aluminum enters holding furnace by melting furnace metaideophone, i.e., the processes such as refinement and denaturation is carried out in furnace, then with small Thus pony ladle dips molten aluminum casting part in furnace.Melting furnace does not have circulating cooling water-cooled body in existing aluminium alloy, no With automatic cooling function, do not have temperature-monitoring function, safety is poor, and safety coefficient is low yet.
Utility model content
The purpose of this utility model is that in view of the drawbacks of the prior art and insufficient, providing one kind can be to aluminum alloy melting The surface temperature of furnace is measured in real time, and is carried out cooling control to aluminium alloy melting furnace, is maintained to enable aluminum alloy to melting furnace Certain temperature range enables aluminum alloy to the aluminium alloy smelting system that the safety of melting furnace greatly improves.
In order to achieve the above purposes, the technical solution adopted by the utility model is:
A kind of aluminium alloy smelting system, including pedestal, pedestal are equipped with aluminium alloy melting furnace, the appearance of aluminium alloy melting furnace Face is equipped with the first digital thermometer and the second digital thermometer, and the outside left of aluminium alloy melting furnace has installed digital temperature and shown Device, the first digital thermometer, the second digital thermometer pass through data line and connect with digital temperature display;Aluminium alloy melting furnace Equipped with water-cooling circulating system, the water-cooling circulating system includes cooling water circulation machine and cooling chamber, and cooling chamber is mounted on aluminium In the furnace wall of alloy melting furnace, the bottom of cooling water circulation machine is connected with water inlet line, and one end of water inlet line is equipped with first and goes out Water polo, first, which goes out water polo, is mounted in cooling chamber, and the other end of water inlet line is equipped with water outlet pump, and water outlet pump is mounted on cooling water and follows The bottom position of ring machine, the bottom of cooling water circulation machine are connected with water return pipeline, and one end of water return pipeline is equipped with second and goes out water polo, Second, which goes out water polo, is mounted in cooling chamber, and the other end of water return pipeline is connect with recovery pond;The top of pedestal is equipped with guide rail, guide rail Be equipped with third hydraulic cylinder and transport platform, the front of third hydraulic cylinder is equipped with third piston rod, the front end of third piston rod with it is defeated Platform is sent to connect;The bottom of transport platform is equipped with several pulleys, and pulley is mounted on guide rail;Transport platform is mounted on aluminium alloy melting furnace Top outer portion position.
Further, the outside left of the cooling water circulation machine has installed recovery pond, and the interior bottom position of recovery pond is set There are the first filtering screen and the second filtering screen, the other end end of water return pipeline is mounted in the first filtering screen;Recovery pond In circulating water pipe is installed, one end of circulating water pipe is mounted on the interior bottom position of recovery pond, the other end peace of circulating water pipe Mounted in the top of cooling water circulation machine.
Further, one end end of the circulating water pipe is equipped with suction pump, and suction pump is mounted on the interior bottom of recovery pond Position.
Further, the inside of the cooling chamber is equipped with water flow regulating mechanism.
Further, the water flow regulating mechanism includes that water flow adjusts blade, and the interior bottom position of cooling chamber is equipped with positioning Axis, the outer peripheral surface of locating shaft are set with cyclophon, and water flow adjusts the outer peripheral surface that blade is mounted on cyclophon.
Further, the top side of the aluminium alloy melting furnace is equipped with the first fixing seat, and the first fixing seat is equipped with the One hydraulic cylinder, the top of first hydraulic cylinder are equipped with First piston bar, and the end of First piston bar is equipped with the first lock, the first lock It is equipped with the first jam plate, the first jam plate interlocking is on the side of the top sealing cover of aluminium alloy melting furnace, the top of aluminium alloy melting furnace The portion other side is equipped with the second fixing seat, and the second fixing seat is equipped with second hydraulic cylinder, and it is living that the top of second hydraulic cylinder is equipped with second Stopper rod, the end of second piston bar are equipped with the second lock, and the second lock is equipped with the second jam plate, and the second jam plate interlocking is in aluminium alloy The other side of the top sealing cover of melting furnace.
Further, the pedestal is equipped with support frame, and the top two sides of support frame are equipped with positioning seat, between positioning seat Equipped with installation axle, the outer peripheral surface of installation axle is set with rotating cylinder, and rotating cylinder is mounted on the front of guide rail;Pedestal is equipped with the 4th liquid Cylinder pressure, the top of the 4th hydraulic cylinder are equipped with the 4th piston rod, and the end of the 4th piston rod is equipped with lifting pipe, and lifting pipe is in horizontal cloth It sets, the rear portion of guide rail is equipped with lifting seat, and lifting pipe is mounted in lifting seat.
After adopting the above structure, the utility model has the beneficial effect that can be fallen aluminium alloy to be processed by transport platform Enter in aluminium alloy melting furnace, the 4th hydraulic cylinder controls transport platform realization by the 4th piston rod and moves back and forth, and transport platform passes through cunning Wheel is realized along guide rail flexibly moves adjusting;Aluminium alloy to be processed can be made to pour into aluminium alloy melting furnace, pass through aluminium alloy Melting furnace carries out fusing smelting to aluminium alloy;It can be to aluminum alloy melting by the first digital thermometer and the second digital thermometer The surface temperature of furnace is measured in real time, and can be carried out to the surface temperature of aluminium alloy melting furnace by digital temperature display real When monitor;Cooling water circulation machine can be delivered into cooling water in cooling chamber by water inlet line, to aluminium alloy melting furnace into The cooling control of row, to enable aluminum alloy to the temperature range that melting furnace is maintained at certain, enables aluminum alloy to the safety of melting furnace significantly It improves.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the structural schematic diagram of water-cooling circulating system described in the utility model.
Fig. 3 is the structural schematic diagram of water flow regulating mechanism described in the utility model.
Specific embodiment
The utility model will be further described below with reference to the accompanying drawings.
As shown in Figure 1 to Figure 3, a kind of aluminium alloy smelting system described in the utility model, including pedestal 11, on pedestal 11 Equipped with aluminium alloy melting furnace 12, the outer surface of aluminium alloy melting furnace 12 is equipped with the first digital thermometer 13 and the second digital thermometer 14, the outside left of aluminium alloy melting furnace 12 has installed digital temperature display 16, first digital thermometer the 13, second number temperature Degree meter 14 is connect by data line 15 with digital temperature display 16;Aluminium alloy melting furnace 12 is equipped with water-cooling circulating system, The water-cooling circulating system includes cooling water circulation machine 18 and cooling chamber 17, and cooling chamber 17 is mounted on aluminium alloy melting furnace 12 In furnace wall, the bottom of cooling water circulation machine 18 is connected with water inlet line 20, and one end of water inlet line 20 is equipped with first and goes out water polo 21, First, which goes out water polo 21, is mounted in cooling chamber 17, and the other end of water inlet line 20 is equipped with water outlet pump 22, and water outlet pump 22 is mounted on cold But the bottom position of water circulator 18, the bottom of cooling water circulation machine 18 are connected with water return pipeline 23, one end of water return pipeline 23 Go out water polo 24 equipped with second, second, which goes out water polo 24, is mounted in cooling chamber 17, and the other end and recovery pond 19 of water return pipeline 23 connect It connects;The top of pedestal 11 is equipped with guide rail 43, and guide rail 43 is equipped with third hydraulic cylinder 44 and transport platform 46, before third hydraulic cylinder 44 Portion is equipped with third piston rod 45, and the front end of third piston rod 45 is connect with transport platform 46;The bottom of transport platform 46 is equipped with several cunnings Wheel 47, pulley 47 is mounted on guide rail 43;Transport platform 46 is mounted on the top outer portion position of aluminium alloy melting furnace 12.
Aluminium alloy to be processed can be poured into aluminium alloy by transport platform 46 and melted by the utility model aluminium alloy smelting system Change in furnace 12, the 4th hydraulic cylinder 52 controls the realization of transport platform 46 by the 4th piston rod 53 and moves back and forth, and transport platform 46 passes through cunning Wheel 47 is realized along guide rail 43 flexibly moves adjusting;Aluminium alloy to be processed can be made to pour into aluminium alloy melting furnace 12, passed through Aluminium alloy melting furnace 12 carries out fusing smelting to aluminium alloy;It can be with by the first digital thermometer 13 and the second digital thermometer 14 The surface temperature of aluminium alloy melting furnace 12 is measured in real time, it can be to aluminium alloy melting furnace by digital temperature display 16 12 surface temperature carries out real-time monitoring;Cooling water can be delivered into cooling by water inlet line 20 by cooling water circulation machine 18 In chamber 17, cooling control is carried out to aluminium alloy melting furnace 12, so that the temperature range that melting furnace 12 is maintained at certain is enabled aluminum alloy to, The safety for enabling aluminum alloy to melting furnace 12 greatly improves.
Wherein, the outside left of cooling water circulation machine 18 has installed recovery pond 19, and the interior bottom position of recovery pond 19 is equipped with First filtering screen 25 and the second filtering screen 26, the other end end of water return pipeline 23 are mounted in the first filtering screen 25; Circulating water pipe 27 is installed in recovery pond 19, one end of circulating water pipe 27 is mounted on the interior bottom position of recovery pond 19, circulation The other end of water pipe 27 is mounted on the top of cooling water circulation machine 18;One end end of circulating water pipe 27 is equipped with suction pump 28, takes out Water pump 28 is mounted on the interior bottom position of recovery pond 19;So cooling water can be recovered to by recovery pond 19 by water return pipeline 23 In recovery pond 19, recovery pond 19 is by circulating water pipe 27 by natural cooling treated cooling water is fed rapidly into cooling water circulation In machine 18, facilitates and carry out secondary use.
Wherein, the inside of cooling chamber 17 is equipped with water flow regulating mechanism 29;Water flow regulating mechanism 29 includes that water flow adjusts leaf Piece 30, the interior bottom position of cooling chamber 17 are equipped with locating shaft 31, and the outer peripheral surface of locating shaft 31 is set with cyclophon 32, and water flow is adjusted Blade 30 is mounted on the outer peripheral surface of cyclophon 32;So water flow, which adjusts blade 30, realizes rotation around locating shaft 31 by cyclophon 32 It adjusts, carries out water conservancy diversion manipulation so as to the convenient cooling water in cooling chamber 17, make cooling water in 17 inner recirculation flow of cooling chamber The dynamic time more lengthens.
Wherein, the top side of aluminium alloy melting furnace 12 is equipped with the first fixing seat 33, and the first fixing seat 33 is equipped with first Hydraulic cylinder 34, the top of first hydraulic cylinder 34 are equipped with First piston bar 35, and the end of First piston bar 35 is equipped with the first lock 36, the first lock 36 be equipped with the first jam plate 37,37 interlocking of the first jam plate aluminium alloy melting furnace 12 top sealing cover one Side, the top other side of aluminium alloy melting furnace 12 are equipped with the second fixing seat 38, and the second fixing seat 38 is equipped with second hydraulic cylinder 39, The top of second hydraulic cylinder 39 is equipped with second piston bar 40, and the end of second piston bar 40 is equipped with the second lock 41, the second lock 41 are equipped with the second jam plate 42, and 42 interlocking of the second jam plate is in the other side of the top sealing cover of aluminium alloy melting furnace 12;So can Automatic interlocking is carried out with the top to aluminium alloy melting furnace 12, safety coefficient greatly improves.
Wherein, pedestal 11 is equipped with support frame 48, and the top two sides of support frame 48 are equipped with positioning seat 49, positioning seat 49 it Between be equipped with installation axle 50, the outer peripheral surface of installation axle 50 is set with rotating cylinder 51, and rotating cylinder 51 is mounted on the front of guide rail 43;Bottom Seat 11 is equipped with the 4th hydraulic cylinder 52, and the top of the 4th hydraulic cylinder 52 is equipped with the 4th piston rod 53, the end of the 4th piston rod 53 Equipped with lifting pipe 54, lifting pipe 54 is in horizontally disposed, and the rear portion of guide rail 43 is equipped with lifting seat 55, and lifting pipe 54 is mounted on lifting seat In 55;So the 4th hydraulic cylinder 52, which controls lifting pipe 54 by the 4th piston rod 53, realizes vertical lifting fine tuning, pass through lifting pipe The rear portion of 54 pairs of guide rails 43 carries out vertical lifting fine tuning, and the front of guide rail 43, which is realized by rotating cylinder 51 around installation axle 50, to be rotated It adjusts, so that convenient be adjusted the gradient of guide rail 43;The gradient progress of transport platform 46 is adjusted more flexiblely.
The above description is only a preferred embodiment of the present invention, therefore all according to described in the utility model patent application range The equivalent change or modification done of structure, feature and principle, be included in the scope of the utility model patent application.

Claims (7)

1. a kind of aluminium alloy smelting system, including pedestal (11), pedestal (11) is equipped with aluminium alloy melting furnace (12), and feature exists In: the outer surface of aluminium alloy melting furnace (12) is equipped with the first digital thermometer (13) and the second digital thermometer (14), aluminium alloy The outside left of melting furnace (12) has installed digital temperature display (16), the first digital thermometer (13), the second digital temperature Meter (14) is connect by data line (15) with digital temperature display (16);
Aluminium alloy melting furnace (12) is equipped with water-cooling circulating system, and the water-cooling circulating system includes cooling water circulation machine (18) With cooling chamber (17), cooling chamber (17) is mounted in the furnace wall of aluminium alloy melting furnace (12), the bottom of cooling water circulation machine (18) It is connected with water inlet line (20), one end of water inlet line (20) is equipped with first and goes out water polo (21), and first, which goes out water polo (21), is mounted on In cooling chamber (17), the other end of water inlet line (20) is equipped with water outlet pump (22), and water outlet pump (22) is mounted on cooling water circulation machine (18) bottom position, the bottom of cooling water circulation machine (18) are connected with water return pipeline (23), and one end of water return pipeline (23) is set There is second to go out water polo (24), second, which goes out water polo (24), is mounted in cooling chamber (17), the other end of water return pipeline (23) and recycling Pond (19) connection;
The top of pedestal (11) is equipped with guide rail (43), and guide rail (43) is equipped with third hydraulic cylinder (44) and transport platform (46), third The front of hydraulic cylinder (44) is equipped with third piston rod (45), and the front end of third piston rod (45) is connect with transport platform (46);Conveying The bottom of platform (46) is equipped with several pulleys (47), and pulley (47) is mounted on guide rail (43);
Transport platform (46) is mounted on the top outer portion position of aluminium alloy melting furnace (12).
2. aluminium alloy smelting system according to claim 1, it is characterised in that: the outside left of cooling water circulation machine (18) It has installed recovery pond (19), the interior bottom position of recovery pond (19) is equipped with the first filtering screen (25) and the second filtering screen (26), the other end end of water return pipeline (23) is mounted in the first filtering screen (25);It is equipped with and follows in recovery pond (19) Ring water pipe (27), one end of circulating water pipe (27) are mounted on the interior bottom position of recovery pond (19), circulating water pipe (27) it is another End is mounted on the top of cooling water circulation machine (18).
3. aluminium alloy smelting system according to claim 2, it is characterised in that: one end end of circulating water pipe (27) is equipped with Suction pump (28), suction pump (28) are mounted on the interior bottom position of recovery pond (19).
4. aluminium alloy smelting system according to claim 1, it is characterised in that: the inside of cooling chamber (17) is equipped with water flow Regulating mechanism (29).
5. aluminium alloy smelting system according to claim 4, it is characterised in that: water flow regulating mechanism (29) includes water flow tune It saves blade (30), the interior bottom position of cooling chamber (17) is equipped with locating shaft (31), and the outer peripheral surface of locating shaft (31), which is set with, to be tuned It manages (32), water flow adjusts the outer peripheral surface that blade (30) are mounted on cyclophon (32).
6. aluminium alloy smelting system according to claim 1, it is characterised in that: the top side of aluminium alloy melting furnace (12) Equipped with the first fixing seat (33), the first fixing seat (33) is equipped with first hydraulic cylinder (34), and the top of first hydraulic cylinder (34) is set Have First piston bar (35), the end of First piston bar (35) is equipped with the first lock (36), and the first lock (36) is equipped with first Jam plate (37), the first jam plate (37) interlocking is in the side of the top sealing cover of aluminium alloy melting furnace (12), aluminium alloy melting furnace (12) the top other side is equipped with the second fixing seat (38), and the second fixing seat (38) is equipped with second hydraulic cylinder (39), the second liquid The top of cylinder pressure (39) is equipped with second piston bar (40), and the end of second piston bar (40) is equipped with the second lock (41), the second lock Seat (41) be equipped with the second jam plate (42), the second jam plate (42) interlocking aluminium alloy melting furnace (12) top sealing cover it is another Side.
7. aluminium alloy smelting system according to claim 1, it is characterised in that: pedestal (11) is equipped with support frame (48), The top two sides of support frame (48) are equipped with positioning seat (49), are equipped with installation axle (50) between positioning seat (49), installation axle (50) Outer peripheral surface be set with rotating cylinder (51), rotating cylinder (51) is mounted on the front of guide rail (43);Pedestal (11) is equipped with the 4th liquid Cylinder pressure (52), the top of the 4th hydraulic cylinder (52) are equipped with the 4th piston rod (53), and the end of the 4th piston rod (53) is equipped with lifting It manages (54), lifting pipe (54) is in horizontally disposed, and the rear portion of guide rail (43) is equipped with lifting seat (55), and lifting pipe (54) is mounted on lifting In seat (55).
CN201821927498.6U 2018-11-22 2018-11-22 A kind of aluminium alloy smelting system Expired - Fee Related CN209443074U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821927498.6U CN209443074U (en) 2018-11-22 2018-11-22 A kind of aluminium alloy smelting system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821927498.6U CN209443074U (en) 2018-11-22 2018-11-22 A kind of aluminium alloy smelting system

Publications (1)

Publication Number Publication Date
CN209443074U true CN209443074U (en) 2019-09-27

Family

ID=68011778

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201821927498.6U Expired - Fee Related CN209443074U (en) 2018-11-22 2018-11-22 A kind of aluminium alloy smelting system

Country Status (1)

Country Link
CN (1) CN209443074U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109182803A (en) * 2018-11-22 2019-01-11 周翠华 A kind of aluminium alloy smelting system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109182803A (en) * 2018-11-22 2019-01-11 周翠华 A kind of aluminium alloy smelting system

Similar Documents

Publication Publication Date Title
CN110814305B (en) Cu-Fe composite material double-melt mixed casting equipment and process
CN102912078A (en) Minimum energy utilization electric arc furnace system and processes for making steel products
CN105215303B (en) A kind of device and method of magnesium alloy slab DC castings
CN209443074U (en) A kind of aluminium alloy smelting system
CN105014020A (en) Device and method for preparing large-diameter semi-solid alloy billet
CN104107889B (en) Large-cross-section nodular cast iron horizontal casting production technology and graphite jig device thereof
CN208832982U (en) A kind of metal material processing melting intermediate frequency furnace
CN204892888U (en) Device of preparation major diameter semi -solid alloy blank
CN106493340B (en) A kind of roll-casting of magnesium alloy turns liquid system and device
CN204301488U (en) For the cleaning plant of smelting furnace
CN206337297U (en) Titan alloy casting ingot consumable electrode vacuum furnace
CN219010411U (en) Full-vacuum large-size electroslag remelting device
CN104416162B (en) A kind of alloy rapid solidification equipment and autocontrol method thereof
CN209570389U (en) Converter rapid sampling attachment in steelmaking process
CN202945301U (en) Cooling device of electroslag remelting crystallizer
CN109182803A (en) A kind of aluminium alloy smelting system
CN205332797U (en) Medium frequency induction fur nace coil cooling water on -line monitoring control system
CN103614610A (en) Method for preparing weather-resisting steel ingot
CN109852746A (en) Blast furnace cinder processing unit and flushing cinder method
CN105195690B (en) Automatic bismuth ingot casting machine
CN209998332U (en) launder melt electromagnetic treatment device
CN115074469A (en) Automatic water-pumping control method and device for high-temperature steel slag hot-disintegration area
CN210996367U (en) Melt processing device in hypereutectic aluminum-silicon alloy continuous casting process
CN111715855B (en) Casting method for 1Cr17Ni2 or 5CrNiMoV steel ingot
CN201371225Y (en) Device for forming hollow profile of cast iron through continuous casting limited by composite physical field

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: 20190927

Termination date: 20211122