CN118813970B - An automatic slag adding and ingot discharging electroslag remelting device - Google Patents
An automatic slag adding and ingot discharging electroslag remelting device Download PDFInfo
- Publication number
- CN118813970B CN118813970B CN202411295916.4A CN202411295916A CN118813970B CN 118813970 B CN118813970 B CN 118813970B CN 202411295916 A CN202411295916 A CN 202411295916A CN 118813970 B CN118813970 B CN 118813970B
- Authority
- CN
- China
- Prior art keywords
- slag
- fixedly connected
- electroslag
- wall
- pipe
- 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.)
- Active
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
- C22B9/16—Remelting metals
- C22B9/18—Electroslag remelting
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses an automatic slag adding and ingot discharging electroslag remelting device which comprises a base and a supporting plate arranged at the top of the base, wherein a slag mechanism is used for remelting electroslag, a top plate is arranged at the bottom of the slag mechanism, a shaping mechanism is used for pouring molten electroslag, a brushing mechanism is used for cleaning a die, the top of the base is fixedly connected with the bottom of the supporting plate, the top of the supporting plate is fixedly connected with the bottom of the top plate, and the bottom of the supporting plate is fixedly connected with the top of the base. The invention relates to the technical field of electroslag remelting, and when electroslag is poured, a lower die can be cooled by wind force through the cooperation of a driving motor, a transmission shaft and a rotating blade, so that the molding speed of an electroslag ingot is improved, meanwhile, the interior of an upper die and the interior of the lower die can be scrubbed through the cooperation of a dustproof bin, a cleaning steel brush and the dustproof bin, and meanwhile, damage caused by dust falling into the driving motor is avoided.
Description
Technical Field
The invention relates to the technical field of electroslag remelting, in particular to an automatic slag-adding ingot-discharging electroslag remelting device.
Background
In order to purify metals and obtain steel ingots with uniform and compact clean structures, in the production of electrothermal alloy, raw materials containing alloy components are firstly smelted, and then the generated slag is required to be refined again by adopting a remelting process, so that the slag is convenient to use in the production of subsequent alloy products.
The existing automatic slag adding and ingot discharging electroslag remelting device is single in structure, cooling water is generally used for cooling the electroslag remelting device during electroslag remelting pouring, equipment water resource loss is greatly increased, and workers are required to take the electroslag ingot out manually after the electroslag ingot is poured and molded, so that labor intensity of the workers is increased.
Therefore, the invention provides an automatic slag-adding and ingot-discharging electroslag remelting device for solving the problems.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides an automatic slag-adding and ingot-discharging electroslag remelting device, which solves the problems.
In order to achieve the purpose, the invention is realized by the following technical scheme that the automatic slag adding and ingot discharging electroslag remelting device comprises:
a base, and a support plate disposed on top of the base;
The slag mechanism is used for remelting electroslag and a top plate arranged at the bottom of the slag mechanism;
the shaping mechanism is used for pouring the melted electroslag;
The brushing mechanism is used for cleaning the die;
the top of the base is fixedly connected with the bottom of the supporting plate, the top of the supporting plate is fixedly connected with the bottom of the top plate, the bottom of the supporting plate is fixedly connected with the top of the base, one side of the brushing mechanism is communicated with the middle part of the slag mechanism, and the bottom of the slag mechanism is in sliding connection with the middle part of the shaping mechanism;
wherein the slag mechanism comprises:
The electroslag storage box is used for storing electroslag;
A slag conveying pipe and a slag box arranged at the bottom of the slag conveying pipe;
The bottom of the electroslag storage tank is communicated with the top of the slag conveying pipe, the bottom of the slag conveying pipe is communicated with the top of the slag box, the bottom of the top plate is fixedly connected with the top of the slag box, and the slag conveying pipe penetrates through the top plate.
Preferably, the slag mechanism comprises a hydraulic cylinder, the top of the hydraulic cylinder is fixedly connected with the bottom of the top plate, the output end of the hydraulic cylinder is fixedly connected with a first hydraulic telescopic pipe, the bottom of the first hydraulic telescopic pipe is fixedly connected with an upper die, the bottom of the slag box is communicated with a pouring pipe, and the top of the inner wall of the upper die is fixedly connected with a water level detector.
Preferably, the bottom of the pouring tube is communicated with the top of the upper die, and the bottom of the upper die is in sliding connection with the top of the shaping mechanism.
Preferably, the shaping mechanism comprises a pouring cylinder, the top of the base is fixedly connected with the bottom of the pouring cylinder, the bottom of the interior of the pouring cylinder is fixedly connected with a driving motor, the bottom of the interior of the pouring cylinder is fixedly connected with a dustproof bin, the dustproof bin is positioned outside the driving motor, the output end of the driving motor is fixedly connected with a transmission shaft, the outer wall of the transmission shaft is fixedly connected with a rotating blade, the interior of the pouring cylinder is fixedly connected with a fixing ring, the top of the fixing ring is fixedly connected with a lower die, the bottom of an internal cavity of the lower die is provided with an electric push rod, and the top of the electric push rod is fixedly connected with a sliding plate.
Preferably, the peripheral side walls of the sliding plate are in sliding connection with the inner wall surface of the lower die, the outer wall of the transmission shaft penetrates through the dustproof bin, and the outer wall of the transmission shaft is in rotary connection with the inner wall of the dustproof bin.
Preferably, the brushing mechanism comprises a connecting pipe, the bottom of the connecting pipe is communicated with the top of the hydraulic cylinder, one end, away from the hydraulic cylinder, of the connecting pipe is communicated with a second hydraulic telescopic pipe, one end, away from the connecting pipe, of the second hydraulic telescopic pipe is fixedly connected with an electric rotating rod, one side, away from the second hydraulic telescopic pipe, of the electric rotating rod is fixedly connected with a cleaning steel brush, and the bottom of the top plate is fixedly connected with a fixing plate.
Preferably, the outer wall of the connecting pipe penetrates through the top plate, the outer wall of the connecting pipe is fixedly connected with the upper wall of the top plate, the outer wall of one side of the connecting pipe penetrates through the fixing plate, and the outer wall of the connecting pipe is fixedly connected with the outer wall of the fixing plate.
The invention provides an automatic slag-adding and ingot-discharging electroslag remelting device. Compared with the prior art, the method has the following beneficial effects:
(1) This automatic change and add sediment and go out spindle electroslag remelting unit, when last mould and bed die pour into a mould the electroslag solution, the inside electroslag solution in dustproof storehouse reduces, and inside the inside electroslag of electroslag bin gets into the slag box through defeated sediment pipe, accomplishes automatic sediment that adds, accomplishes the automatic drawing of patterns of electroslag spindle through the cooperation of electric putter and sliding plate simultaneously.
(2) This automatic change and add sediment and go out spindle electroslag remelting unit, when the electroslag is at the pouring, can carry out wind-force cooling to the bed die through driving motor, transmission shaft and rotor blade's cooperation, improve electroslag spindle shaping speed, can scrub mould and bed die inside through dustproof storehouse, clearance steel brush and dustproof storehouse simultaneously, avoid the dust to fall into driving motor inside simultaneously and cause the damage.
Drawings
FIG. 1 is a schematic diagram of an automated slag-in, ingot-out electroslag remelting apparatus of the invention;
FIG. 2 is a schematic view of the slag mechanism of the present invention;
FIG. 3 is a schematic view of a position structure of the water level detector of the present invention;
FIG. 4 is a schematic view of the setting mechanism of the present invention;
fig. 5 is a schematic view of the structure of the brushing mechanism of the present invention.
1, A base, 2, a supporting plate, 3, a top plate, 4, a slag mechanism, 5, a shaping mechanism, 6, a brushing mechanism, 40, an electroslag storage tank, 41, a slag conveying pipe, 42, a slag tank, 43, a hydraulic cylinder, 44, a first hydraulic telescopic pipe, 45, a pouring pipe, 46, an upper die, 47, a water level detector, 50, a pouring cylinder, 51, a driving motor, 52, a dustproof bin, 53, a transmission shaft, 54, a rotating blade, 55, a fixed ring, 56, a lower die, 57, an electric push rod, 58, a sliding plate, 60, a connecting pipe, 61, a second hydraulic telescopic pipe, 62, an electric rotating rod, 63, a cleaning steel brush, 64 and a fixed plate.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Referring to fig. 1-3, an automatic slag-adding and ingot-discharging electroslag remelting device includes:
a base 1, and a support plate 2 provided on top of the base 1;
the slag mechanism 4, the slag mechanism 4 is used for remelting electroslag, and a top plate 3 is arranged at the bottom of the slag mechanism 4;
the shaping mechanism 5 is used for pouring the molten electroslag;
A brushing mechanism 6, wherein the brushing mechanism 6 is used for cleaning the mould;
the top of the base 1 is fixedly connected with the bottom of the supporting plate 2, the top of the supporting plate 2 is fixedly connected with the bottom of the top plate 3, the bottom of the slag mechanism 4 is fixedly connected with the top of the top plate 3, one side of the brushing mechanism 6 is communicated with the middle part of the slag mechanism 4, and the bottom of the slag mechanism 4 is in sliding connection with the middle part of the shaping mechanism 5;
Wherein the slag mechanism 4 comprises:
an electroslag storage tank 40, the electroslag storage tank 40 being used for storing electroslag;
A slag conveying pipe 41 and a slag box 42 arranged at the bottom of the slag conveying pipe 41;
The bottom of the electroslag storage tank 40 is communicated with the top of the slag conveying pipe 41, the bottom of the slag conveying pipe 41 is communicated with the top of the slag tank 42, the bottom of the top plate 3 is fixedly connected with the top of the slag tank 42, and the slag conveying pipe 41 penetrates through the top plate 3;
The slag mechanism 4 comprises a hydraulic cylinder 43, the top of the hydraulic cylinder 43 is fixedly connected with the bottom of the top plate 3, the output end of the hydraulic cylinder 43 is fixedly connected with a first hydraulic telescopic pipe 44, the bottom of the first hydraulic telescopic pipe 44 is fixedly connected with an upper die 46, the bottom of the slag box 42 is communicated with a pouring pipe 45, the top of the inner wall of the upper die 46 is fixedly connected with a water level detector 47, the bottom of the pouring pipe 45 is communicated with the top of the upper die 46, and the bottom of the upper die 46 is in sliding connection with the top of the shaping mechanism 5;
When the slag tank 42 is not filled with the electroslag solution, the electroslag enters the slag tank 42 from the slag tank 40 through the slag conveying pipe 41, the slag tank 42 is started to melt the electroslag, the slag tank 42 is started, the slag tank 42 drives the upper die 46 to be pressed down to the top of the lower die 56 through the first hydraulic telescopic pipe 44 to complete die assembly, the pouring pipe 45 inputs the solution in the slag tank 42 into the upper die 46 and the lower die 56 to perform pouring molding on the electroslag, the upper die 46 and the lower die 56 are monitored through the setting of the water level detector 47, and when the electroslag solution is filled, the pouring pipe 45 stops conveying the electroslag solution to the interior of the upper die 46.
Example two
Referring to fig. 4, the shaping mechanism 5 includes a casting cylinder 50, the top of the base 1 is fixedly connected with the bottom of the casting cylinder 50, the inner bottom end of the casting cylinder 50 is fixedly connected with a driving motor 51, the inner bottom end of the casting cylinder 50 is fixedly connected with a dustproof bin 52, the dustproof bin 52 is positioned outside the driving motor 51, the output end of the driving motor 51 is fixedly connected with a transmission shaft 53, the outer wall of the transmission shaft 53 is fixedly connected with a rotating blade 54, the inner part of the casting cylinder 50 is fixedly connected with a fixed ring 55, the top of the fixed ring 55 is fixedly connected with a lower die 56, the bottom of an inner cavity of the lower die 56 is provided with an electric push rod 57, the top of the electric push rod 57 is fixedly connected with a sliding plate 58, the peripheral side walls of the sliding plate 58 are in sliding connection with the inner wall surface of the inner part of the lower die 56, the outer wall of the transmission shaft 53 penetrates through the dustproof bin 52, and the outer wall of the transmission shaft 53 is in rotating connection with the inner wall of the dustproof bin 52;
when the upper mold 46 and the lower mold 56 are casting the electroslag solution, the driving motor 51 is started, the driving motor 51 drives the rotary blade 54 to rotate through the transmission shaft 53 to cool the bottom of the lower mold 56 by wind force, the casting efficiency of the equipment is improved, when the electroslag solution is cast into an electroslag ingot, the hydraulic cylinder 43 drives the upper mold 46 to reset, the electric push rod 57 is started, the electric push rod 57 drives the electroslag ingot to ascend through the sliding plate 58 to complete demoulding, the manual demoulding of the electroslag ingot is not needed, and the labor intensity of workers is reduced.
Example III
Referring to fig. 5, the brushing mechanism 6 includes a connecting pipe 60, one end of the connecting pipe 60 is communicated with the top of the hydraulic cylinder 43, one end of the connecting pipe 60 away from the hydraulic cylinder 43 is communicated with a second hydraulic telescopic pipe 61, one end of the second hydraulic telescopic pipe 61 away from the connecting pipe 60 is fixedly connected with an electric rotating rod 62, one side of the electric rotating rod 62 away from the second hydraulic telescopic pipe 61 is fixedly connected with a cleaning steel brush 63, the bottom of the top plate 3 is fixedly connected with a fixing plate 64, the side wall of the connecting pipe 60 penetrates through the top plate 3, the outer wall of the connecting pipe 60 is fixedly connected with the upper wall of the top plate 3, the outer wall of one side of the connecting pipe 60 penetrates through the fixing plate 64, and the side wall of the connecting pipe 60 is fixedly connected with the outer wall of the fixing plate 64;
It should be noted that, when the hydraulic cylinder 43 drives the upper mold 46 to rise, the hydraulic cylinder 43 extracts and conveys the liquid inside the first hydraulic telescopic tube 44 into the connecting tube 60, the connecting tube 60 inputs the liquid inside the second hydraulic telescopic tube 61 to extend, the second hydraulic telescopic tube 61 drives the cleaning steel brush 63 to enter between the upper mold 46 and the lower mold 56 through the electric rotating rod 62, the electric rotating rod 62 is started, the electric rotating rod 62 drives the cleaning steel brush 63 to rotate to brush the inner parts of the upper mold 46 and the lower mold 56, the phenomenon that the electric slag is adhered inside the cleaning steel brush 63 is avoided, the casting of the subsequent electroslag ingot is affected, the cleaning steel brush 63 is prevented from brushing and outputting the electric slag to drop into the driving motor 51 to damage the driving motor 51 through the arrangement of the dustproof bin 52, and the service life of the driving motor 51 is prolonged.
And all that is not described in detail in this specification is well known to those skilled in the art.
When the electric slag pouring device is in operation, a worker puts electroslag into the electroslag storage tank 40to melt, when the electroslag solution in the slag tank 42 is not full, the electroslag enters the slag tank 42 from the inside of the electroslag storage tank 40 through the slag conveying pipe 41, the slag tank 42 is started to melt the electroslag, the slag tank 42 is started, the slag tank 42 drives the upper die 46 to be pressed down to the top of the lower die 56 through the first hydraulic telescopic pipe 44 to complete die assembly, the pouring pipe 45 inputs the solution in the slag tank 42 into the upper die 46 and the lower die 56 to pour and form the electroslag, the electroslag solution in the upper die 46 and the lower die 56 is monitored through the arrangement of the water level detector 47, and when the electroslag solution is full, the pouring pipe 45 stops conveying the electroslag solution in the upper die 46;
When the upper die 46 and the lower die 56 are used for casting and forming the electroslag solution, the driving motor 51 is started, the driving motor 51 drives the rotary blade 54 to rotate through the transmission shaft 53 to cool the bottom of the lower die 56 by wind force, the casting efficiency of equipment is improved, when the electroslag solution is cast into an electroslag ingot, the hydraulic cylinder 43 drives the upper die 46 to reset, the electric push rod 57 is started, the electric push rod 57 drives the electroslag ingot to ascend through the sliding plate 58 to finish demoulding, a worker is not required to manually demould the electroslag ingot, and the labor intensity of the worker is reduced;
When the hydraulic cylinder 43 drives the upper die 46 to rise, the hydraulic cylinder 43 extracts and conveys the liquid in the first hydraulic telescopic pipe 44 into the connecting pipe 60, the connecting pipe 60 inputs the liquid in the second hydraulic telescopic pipe 61 to extend, the second hydraulic telescopic pipe 61 drives the cleaning steel brush 63 to enter between the upper die 46 and the lower die 56 through the electric rotating rod 62, the electric rotating rod 62 is started, the electric rotating rod 62 drives the cleaning steel brush 63 to rotate to brush the inner parts of the upper die 46 and the lower die 56, the phenomenon that the electric slag is adhered in the inner parts of the upper die 46 and the lower die 56 is avoided, the casting of the follow-up electroslag ingot is affected, the cleaning steel brush 63 is prevented from brushing and outputting the electric slag to fall into the driving motor 51 to cause damage of the electric slag through the arrangement of the dustproof bin 52, and the service life of the driving motor 51 is prolonged.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202411295916.4A CN118813970B (en) | 2024-09-18 | 2024-09-18 | An automatic slag adding and ingot discharging electroslag remelting device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202411295916.4A CN118813970B (en) | 2024-09-18 | 2024-09-18 | An automatic slag adding and ingot discharging electroslag remelting device |
Publications (2)
Publication Number | Publication Date |
---|---|
CN118813970A CN118813970A (en) | 2024-10-22 |
CN118813970B true CN118813970B (en) | 2024-12-13 |
Family
ID=93073117
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202411295916.4A Active CN118813970B (en) | 2024-09-18 | 2024-09-18 | An automatic slag adding and ingot discharging electroslag remelting device |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN118813970B (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN219752392U (en) * | 2023-05-04 | 2023-09-26 | 如皋市宏茂重型锻压有限公司 | Electroslag remelting machine for die steel |
CN117324615A (en) * | 2023-11-24 | 2024-01-02 | 马鞍山市伟创铸造有限公司 | Nonferrous metal casting processing casting equipment |
CN221501199U (en) * | 2023-10-24 | 2024-08-09 | 淄博秦鼎昌特钢科技有限公司 | Electroslag remelting equipment using electrochemical deoxidation |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1260180A (en) * | 1969-11-21 | 1972-01-12 | Inst Elektroswarki Patona | Apparatus for the bottom pouring or slag into a mould |
GB1269927A (en) * | 1970-10-22 | 1972-04-06 | Inst Elektroswarki Patona | Apparatus for electroslag remelting of metals |
US4145563A (en) * | 1976-04-22 | 1979-03-20 | Venjukovsky Armaturny Zavod | Plant for and method of electroslag remelting of metals and alloys |
GB1492279A (en) * | 1976-08-03 | 1977-11-16 | Ass Elect Ind | Electroslag melting of metal |
DE3907702A1 (en) * | 1988-03-12 | 1989-09-21 | Karl Hehl | Drawing tool for forming sheets |
CN213167065U (en) * | 2020-06-30 | 2021-05-11 | 重庆电子工程职业学院 | Die stamping device with cleaning function for computer shell production |
-
2024
- 2024-09-18 CN CN202411295916.4A patent/CN118813970B/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN219752392U (en) * | 2023-05-04 | 2023-09-26 | 如皋市宏茂重型锻压有限公司 | Electroslag remelting machine for die steel |
CN221501199U (en) * | 2023-10-24 | 2024-08-09 | 淄博秦鼎昌特钢科技有限公司 | Electroslag remelting equipment using electrochemical deoxidation |
CN117324615A (en) * | 2023-11-24 | 2024-01-02 | 马鞍山市伟创铸造有限公司 | Nonferrous metal casting processing casting equipment |
Also Published As
Publication number | Publication date |
---|---|
CN118813970A (en) | 2024-10-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN101298100B (en) | Centrifuge for casting steel tube by heated mould method | |
CN118813970B (en) | An automatic slag adding and ingot discharging electroslag remelting device | |
CN219752392U (en) | Electroslag remelting machine for die steel | |
CN107685142A (en) | A kind of heat balance method of semi-solid processing automatic assembly line | |
CN217979882U (en) | Automatic slag skimming casting furnace | |
CN219402251U (en) | Multi-station centrifugal casting machine | |
CN214023373U (en) | An aluminum rod casting mold | |
CN111673047B (en) | Gear casting mould | |
CN115673274A (en) | A casting system and method for an aviation thin-walled heat-resistant aluminum alloy casing | |
CN210848255U (en) | Rear end cover mould convenient to change die casting | |
CN209206438U (en) | A kind of hot investment casting automation pouring device | |
CN111715867A (en) | Convertible antigravity casting former | |
CN113600761A (en) | Light alloy motor housing casting equipment | |
CN218985474U (en) | Casting mold | |
CN220612284U (en) | Melt splash-proof casting device | |
CN215392455U (en) | Heat dissipation cast aluminum rotor processingequipment for water pump | |
CN111604491A (en) | Automatic casting equipment | |
US4392805A (en) | Centrifugal casting apparatus | |
CN215766441U (en) | Raw materials melting device is used in drill bit production | |
CN221870260U (en) | Casting machinery with automatic pouring function | |
CN218963968U (en) | Ingot casting device | |
CN222133389U (en) | Cantilever swing pouring machine | |
CN221817316U (en) | Casting equipment for manufacturing metal tool | |
CN114754578B (en) | Vacuum smelting furnace for processing high-resistance electric heating alloy material | |
CN213701656U (en) | Shell mould dewaxing device convenient to clean for material boat production and manufacturing |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |