CN113145677B - Manufacturing device for Tb rare earth metal wire - Google Patents
Manufacturing device for Tb rare earth metal wire Download PDFInfo
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- CN113145677B CN113145677B CN202110503798.1A CN202110503798A CN113145677B CN 113145677 B CN113145677 B CN 113145677B CN 202110503798 A CN202110503798 A CN 202110503798A CN 113145677 B CN113145677 B CN 113145677B
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- Prior art keywords
- fixedly connected
- wall
- crystal
- extrusion device
- rotating
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/02—Making uncoated products
- B21C23/04—Making uncoated products by direct extrusion
- B21C23/08—Making wire, bars, tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/21—Presses specially adapted for extruding metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C29/00—Cooling or heating work or parts of the extrusion press; Gas treatment of work
- B21C29/04—Cooling or heating of press heads, dies or mandrels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C43/00—Devices for cleaning metal products combined with or specially adapted for use with machines or apparatus provided for in this subclass
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Of Metal (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a manufacturing device of Tb rare earth metal wires, which belongs to the technical field of metal wires and comprises a base, wherein the upper end of the base is fixedly connected with a stirring heating bin, the upper end of the stirring heating bin is provided with a feed inlet, the right end of the stirring heating bin is provided with an extrusion device, the lower end of the extrusion device is fixedly connected with the top end of the arranged base, the upper end of the extrusion device is fixedly connected with a driving motor, and the right end of the driving motor is rotationally connected with a rotating shaft. According to the invention, the crystal scraping plate and the crystal scraping element are arranged, so that the ice crystal on the outer surface of the metal wire can be scraped, the damage to the metal wire caused by the fact that the ice crystal is attached to the outer surface of the metal wire for a long time can be avoided, and in addition, the crystal scraping plate and the crystal scraping element can be driven to rotate at a certain angle according to the arrangement of the rotating element and the connecting rod, so that the crystal scraping plate and the crystal scraping element are applicable to the ice crystal scraping of metal wires with various sizes, and the crystal scraping plate is convenient to use.
Description
Technical Field
The invention relates to the technical field of metal wires, in particular to a manufacturing device of a Tb rare earth metal wire.
Background
Rare earth elements were originally found in the relatively rare minerals produced in sweden, "earth" being a substance that is insoluble in water according to the current practice. Rare earth elements are used as materials, namely rare earth materials, and a plurality of metal wires are added with partial rare earth materials during manufacturing, so that the performance of the metal wires can be improved. The following problems exist in the prior art:
1. in the prior art, the existing manufacturing devices of metal wires cannot cool the manufacturing devices of metal wire colors during manufacturing, sudden temperature difference can cause damage to the devices, and the internal structure of the metal wires can be influenced, so that the metal wires are broken;
2. in the prior art, the ice crystal phenomenon can occur on the outer surface of the metal wire due to the temperature difference phenomenon after the manufacturing device of some metal wires is completed, the metal wires can be damaged due to untimely cleaning, and the applicability of the manufacturing device of the Tb rare earth metal wires is poor, so that structural innovation is needed to solve the specific problem.
Disclosure of Invention
The invention aims to solve the technical problems that a manufacturing device of Tb rare earth metal wires cannot cool the manufacturing device of metal wire colors during manufacturing, the device is damaged due to sudden temperature difference, the internal structure of the metal wires is influenced, and the metal wires are broken; another purpose is to solve the problem that the outer surface of the metal wire is ice-crystal due to temperature difference after the manufacturing device of some metal wires is completed, and the metal wire is damaged due to untimely cleaning, so that the effect of treating the external ice-crystal of the metal wire is achieved.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a manufacturing installation of Tb rare earth wire, includes the base, the upper end fixedly connected with stirring heating storehouse of base, and the upper end in stirring heating storehouse is provided with the feed inlet, stirring heating storehouse's right-hand member is provided with extrusion device, and extrusion device's lower extreme and the top fixed connection of base that sets up, extrusion device's upper end fixedly connected with driving motor, driving motor's right-hand member rotation is connected with the axis of rotation, and the right-hand member fixedly connected with rotation gear of axis of rotation, extrusion device's right-hand member is provided with fixing device, extrusion device's inside is provided with the chill roll, and the inside both ends fixed connection about the left and right sides of chill roll with the extrusion device who sets up, the inside bottom fixed connection of chill roll, the inside of chill roll is provided with the rotor, the right-hand member is provided with crystal scraping device, the middle part of rotor roll is provided with fixed gear, the lower extreme fixedly connected with supporting element of chill roll, and supporting element's lower extreme and the inside fixed connection of setting up rotation gear, the inside plug-in connection to the inside wire, the inside plug-in connection of inside is provided with the inside is connected with the chill roll, the inside plug-in connection to the inside is provided with the wire, the inside is connected with the inside is connected with the chill roll.
By adopting the technical scheme, the cooling roller in the scheme is arranged into two sections, and two supporting elements are arranged at the joint of the middle section and used for supporting the cooling roller.
The technical scheme of the invention is further improved as follows: the outer wall of the rotating roller is fixedly connected with the inner wall of the fixed gear, and the upper end of the fixed gear is meshed with the lower end of the rotating gear.
By adopting the technical scheme, the lower end of the rotating gear in the scheme penetrates through the upper end of the extrusion device and is meshed with the upper end of the fixed gear.
The technical scheme of the invention is further improved as follows: the outer wall of the rotating roller is matched with the inner wall of the cooling roller, and the outer wall of the rotating roller is rotationally connected with the inner wall of the cooling roller.
The technical scheme of the invention is further improved as follows: the inner wall fixedly connected with damping spring of crystal scraping device, damping spring's front fixedly connected with fixed block, and the left end of fixed block sets up to curved surface shape, the inside rotation of fixed block is connected with rotating element.
By adopting the technical scheme, the left end of the fixed block in the scheme is arranged to be curved.
The technical scheme of the invention is further improved as follows: the right end of the rotating element is fixedly connected with a connecting rod, and the connecting rod is rotationally connected with the fixed block through the arranged rotating element.
The technical scheme of the invention is further improved as follows: the right end of the connecting rod is fixedly connected with a crystal scraping plate, and the front surface of the crystal scraping plate is fixedly connected with a crystal scraping element.
By adopting the technical scheme, the crystal scraping plate in the scheme is arranged to be a curved plate and is matched with the groove in the fixed block, so that thicker metal wires can be conveniently encountered, the crystal scraping plate can be recovered, and the crystal scraping element protrudes outside.
The technical scheme of the invention is further improved as follows: the outer wall of the rotating element is provided with a ruler spring, and the outer wall of the ruler spring is matched with the inner wall of the fixed block.
By adopting the technical scheme, the setting of utilizing the chi spring in this scheme can restrict the rotation angle of axis of rotation, and the rotation angle that the rotating element drove crystal scraper blade sets up to 75, both can strike off the surface crystal of less wire material, can also strike off the surface crystal of great wire material, and application range is wider.
The technical scheme of the invention is further improved as follows: the upper end of the cooling roller is provided with a material conveying opening, the right end of the stirring heating bin is fixedly connected with a material conveying pipeline, the right end of the material conveying pipeline penetrates through the left end of the extrusion device, and the material conveying pipeline is fixedly connected with the upper end of the material conveying opening.
By adopting the technical scheme, compared with the prior art, the invention has the following technical progress:
1. the invention provides a manufacturing device of Tb rare earth metal wires, which is characterized in that through the combination of a rotating roller and a cooling roller, materials can conveniently enter the rotating roller, then through the combination of a cooling element, a connecting wire and a conveying port, the metal materials in the rotating roller can be cooled, and in addition, through the arrangement of a fixed gear, a driving motor and a rotating gear, the rotating roller can be driven to rotate, so that the metal materials in the rotating roller are driven to rotate, and the damage to the device caused by falling of the metal materials in one place is avoided.
2. The invention provides a manufacturing device of Tb rare earth metal wires, which can fix wires with different sizes by adopting a combination arrangement of a crystal scraping device and a damping spring, and then scrape the ice crystals on the outer surface of the wires according to the arrangement of a crystal scraping plate and a crystal scraping element, so that the damage to the wires caused by the long-time adhesion of the ice crystals on the outer surface of the wires can be avoided, and in addition, the crystal scraping plate and the crystal scraping element can be driven to rotate at a certain angle according to the arrangement of a rotating element and a connecting rod, so that the device is suitable for scraping the ice crystals of the wires with various sizes and is convenient to use.
Drawings
FIG. 1 is a schematic overall perspective view of the present invention;
FIG. 2 is a schematic perspective view of an extrusion device according to the present invention;
FIG. 3 is a schematic cross-sectional perspective view of the cooling roll and the turning roll of the present invention;
fig. 4 is a schematic perspective view of a crystal scraping device according to the present invention.
1, a base; 2. stirring and heating the bin; 3. an extrusion device; 31. a cooling roller; 311. a cooling element; 312. connecting wires; 313. a delivery port; 314. a patch cord; 32. a rotating roller; 33. a crystal scraping device; 331. a damping spring; 332. a fixed block; 333. a rotating element; 334. a connecting rod; 335. a crystal scraper; 336. a crystal scraping element; 34. a fixed gear; 35. a support element; 36. a pressing member; 37. a material conveying port; 4. a driving motor; 5. rotating the gear; 6. a fixing device.
Description of the embodiments
The invention is further illustrated by the following examples:
examples
As shown in fig. 1 to 4, the invention provides a manufacturing device of Tb rare earth wire, comprising a base 1, the upper end of the base 1 is fixedly connected with a stirring heating bin 2, the upper end of the stirring heating bin 2 is provided with a feed inlet, the right end of the stirring heating bin 2 is provided with an extrusion device 3, the lower end of the extrusion device 3 is fixedly connected with the top end of the arranged base 1, the upper end of the extrusion device 3 is fixedly connected with a driving motor 4, the right end of the driving motor 4 is rotationally connected with a rotating shaft, the right end of the rotating shaft is fixedly connected with a rotating gear 5, the right end of the extrusion device 3 is provided with a fixing device 6, the inside of the extrusion device 3 is provided with a cooling roller 31, the left end and the right end of the cooling roller 31 are fixedly connected with the left end and the right end of the inside of the arranged extrusion device 3, the upper end of the cooling roller 31 is provided with a feed inlet 37, the right end of the stirring heating bin 2 is fixedly connected with a feed pipeline, the right end of the conveying pipeline penetrates through the left end of the extrusion device 3, the conveying pipeline is fixedly connected with the upper end of the conveying port 37, the left end of the cooling roller 31 is fixedly connected with the extrusion element 36, the lower end of the extrusion element 36 is fixedly connected with the bottom end inside the extrusion device 3, the inside of the cooling roller 31 is provided with the rotating roller 32, the right end of the rotating roller 32 is provided with the crystal scraping device 33, the middle part of the rotating roller 32 is provided with the fixed gear 34, the fixed gear 34 is arranged with the driving motor 4 and the rotating gear 5, so that the rotating roller 32 can be driven to rotate, the metal material inside the rotating roller 32 is driven to rotate, the damage to the device caused by falling of the metal material at one place is avoided, the lower end of the rotating gear 5 penetrates through the upper end of the extrusion device 3 and is meshed with the upper end of the fixed gear 34, so that the rotating roller 32 is conveniently driven to rotate, the metal material after avoiding heating enters into the inside of rotor roller 32, because inside long-time difference in temperature is too big, causes the harm to the device easily, still can influence the wire material inner structure of making and cause the harm, the lower extreme fixedly connected with supporting element 35 of chill roll 31, and the lower extreme of supporting element 35 and the inside bottom fixed connection of extrusion device 3 of setting.
Examples
As shown in fig. 2-4, on the basis of embodiment 1, the present invention provides a technical solution: the inside of chill roll 31 is provided with cooling element 311, cooling element 311's left end through-connection has connecting wire 312, connecting wire 312's right-hand member fixedly connected with patch cord 314, patch cord 314's right-hand member runs through chill roll 31's right-hand member, and patch cord 314 extends to the outside of chill roll 31, the inner wall of chill roll 31 runs through and is provided with delivery port 313, the combination of live-action roller 32 and chill roll 31 makes things convenient for the material to enter into live-action roller 32 inside, then through cooling element 311 and connecting wire 312 and delivery port 313's combination setting, can cool off the inside metallic material of live-action roller 32.
Preferably, the cooling roller 31 is provided with two sections, two supporting elements 35 are arranged at the joint of the middle section and used for supporting the cooling roller 31, so that the rotating roller 32 can rotate inside the cooling roller 31 conveniently, the outer wall of the rotating roller 32 is fixedly connected with the inner wall of the fixed gear 34, the upper end of the fixed gear 34 is meshed with the lower end of the rotating gear 5, the outer wall of the rotating roller 32 is matched with the inner wall of the cooling roller 31, and the outer wall of the rotating roller 32 is rotationally connected with the inner wall of the cooling roller 31.
Examples
As shown in fig. 1-4, on the basis of embodiment 1 and embodiment 2, the present invention provides a technical solution: preferably, the inner wall fixedly connected with damping spring 331 of crystal scraping device 33, damping spring's 331 front fixedly connected with fixed block 332, and the left end of fixed block 332 sets up to curved surface shape, the inside rotation of fixed block 332 is connected with rotor 333, the left end of fixed block 332 sets up to curved surface form, thereby make things convenient for the passing through of wire, thereby make things convenient for the crystal of wire outside to strike off, rotor 333 right-hand member fixedly connected with connecting rod 334, connecting rod 334 rotates with fixed block 332 through the rotor 333 that sets up to be connected, connecting rod 334's right-hand member fixedly connected with crystal scraper 335, and crystal scraper 335's front fixedly connected with scrapes brilliant component 336, crystal scraper 33 and damping spring's 331 and 332's combination setting, can realize fixing the wire of equidimension not, then according to crystal scraper 335 and scrape the setting of brilliant component 336, can scrape the surface to the wire, thereby can avoid the ice crystal to adhere to the surface of wire for a long time and cause the harm to wire, crystal scraper setting up to the curved surface, and with the inside recess looks of fixed block 332 and scrape the crystal scraper 335, but can conveniently meet crystal scraper 335 at the inside crystal scraper 335.
Preferably, the outer wall of the rotating element 333 is provided with a ruler spring 337, and the outer wall of the ruler spring 337 is matched with the inner wall of the fixed block 332, so that the rotating angle of the rotating shaft can be limited by the aid of the arrangement of the ruler spring 337, the rotating element 333 drives the crystal scraper 335 to be 75 degrees, so that crystals on the outer surface of smaller metal wires can be scraped, crystals on the outer surface of larger metal wires can be scraped, and the application range is wider.
The working principle of the apparatus for producing a Tb rare earth wire will be described in detail.
As shown in fig. 1 to 4, the rare earth metal material is melted by heating and then is conveyed to the inside of the rotating roller 32 by the pipe at the right end, the rotating gear 5 is driven to rotate by the driving motor 4, so that the rotating roller 32 is driven to rotate according to the meshing between the rotating gear 5 and the fixed gear 34, then the metal material entering the inside of the rotating roller 32 is extruded according to the arrangement of the extruding device, the metal material in the rotating roller 32 is electrified according to the arrangement of the inserting wire 314, then the cooling gas is emitted by the cooling element 311, and then is conveyed to the outside of the rotating roller 32 by the conveying opening 313, so that the metal material in the rotating roller 32 is cooled, so that the extruding device is convenient to extrude the metal material in the rotating roller 32, then the metal material is extruded by the inside of the crystal scraping device 33, the extruded metal wire is convenient to pass through according to the arrangement of the curved surface of the left end of the fixed block 332, then the crystal scraping plate 335 is scraped by the crystal scraping plate 335, and the ice crystal scraping of the outer surface of the metal wire is convenient to scrape ice crystal scraping plate 335 according to the arrangement of the rotating element 333 and the connecting rod 334, and the crystal scraping plate is adjusted by a certain angle according to the arrangement of the rotating element 333 and 334, so that the metal wire can be convenient to pass through various large and strong metal wires.
The foregoing invention has been generally described in great detail, but it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, it is intended to cover modifications or improvements within the spirit of the inventive concepts.
Claims (4)
1. The utility model provides a manufacturing installation of Tb rare earth wire, includes base (1), the upper end fixedly connected with stirring heating storehouse (2) of base (1), and the upper end of stirring heating storehouse (2) is provided with the feed inlet, the right-hand member of stirring heating storehouse (2) is provided with extrusion device (3), and the lower extreme of extrusion device (3) and the top fixed connection of base (1) that set up, the upper end fixedly connected with driving motor (4) of extrusion device (3), the right-hand member rotation of driving motor (4) is connected with the axis of rotation, and the right-hand member fixedly connected with rotation gear (5) of axis of rotation, its characterized in that: the inside of extrusion device (3) is provided with chill roll (31), and both ends about chill roll (31) and the inside both ends fixed connection about extrusion device (3) that set up, the left end fixedly connected with extrusion element (36) of chill roll (31), and the lower extreme of extrusion element (36) and the inside bottom fixed connection of extrusion device (3) that set up, the inside of chill roll (31) is provided with rotor roll (32), the right-hand member of rotor roll (32) is provided with crystal scraping device (33), the middle part of rotor roll (32) is provided with fixed gear (34), the lower extreme fixedly connected with supporting element (35) of chill roll (31), and the lower extreme of supporting element (35) and the inside bottom fixed connection of extrusion device (3) that set up;
the inside of the cooling roller (31) is provided with a cooling element (311), the left end of the cooling element (311) is connected with a connecting wire (312) in a penetrating way, the right end of the connecting wire (312) is fixedly connected with a patch cord (314), the right end of the patch cord (314) penetrates through the right end of the cooling roller (31), the patch cord (314) extends to the outside of the cooling roller (31), and the inner wall of the cooling roller (31) is provided with a conveying port (313) in a penetrating way;
the inner wall of the crystal scraping device (33) is fixedly connected with a damping spring (331), the front surface of the damping spring (331) is fixedly connected with a fixed block (332), the left end of the fixed block (332) is arranged to be in a curved surface shape, and a rotating element (333) is rotatably connected inside the fixed block (332);
the right end of the rotating element (333) is fixedly connected with a connecting rod (334), and the connecting rod (334) is rotationally connected with the fixed block (332) through the arranged rotating element (333);
the outer wall of the rotating roller (32) is fixedly connected with the inner wall of the fixed gear (34), and the upper end of the fixed gear (34) is meshed with the lower end of the rotating gear (5);
the right-hand member fixedly connected with crystal scraper blade (335) of connecting rod (334), and the front fixedly connected with of crystal scraper blade (335) scrapes brilliant component (336), and crystal scraper blade (335) set up to curved plate, and with the inside recess looks adaptation of fixed block (332) to can retrieve crystal scraper blade (335).
2. The apparatus for producing a Tb rare earth wire according to claim 1, wherein: the outer wall of the rotating roller (32) is matched with the inner wall of the cooling roller (31), and the outer wall of the rotating roller (32) is rotationally connected with the inner wall of the cooling roller (31).
3. The apparatus for producing a Tb rare earth wire according to claim 1, wherein: the outer wall of the rotating element (333) is provided with a ruler spring (337), and the outer wall of the ruler spring (337) is matched with the inner wall of the fixed block (332).
4. The apparatus for producing a Tb rare earth wire according to claim 1, wherein: the upper end of the cooling roller (31) is provided with a material conveying opening (37), the right end of the stirring heating bin (2) is fixedly connected with a material conveying pipeline, the right end of the material conveying pipeline penetrates through the left end of the extrusion device (3), and the material conveying pipeline is fixedly connected with the upper end of the material conveying opening (37).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110503798.1A CN113145677B (en) | 2021-05-10 | 2021-05-10 | Manufacturing device for Tb rare earth metal wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110503798.1A CN113145677B (en) | 2021-05-10 | 2021-05-10 | Manufacturing device for Tb rare earth metal wire |
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| Publication Number | Publication Date |
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| CN113145677A CN113145677A (en) | 2021-07-23 |
| CN113145677B true CN113145677B (en) | 2023-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110503798.1A Active CN113145677B (en) | 2021-05-10 | 2021-05-10 | Manufacturing device for Tb rare earth metal wire |
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| CN (1) | CN113145677B (en) |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2667258B2 (en) * | 1989-08-31 | 1997-10-27 | 健 増本 | Rare earth metal base alloy foil or rare earth metal base alloy fine wire and method for producing the same |
| CN1073479C (en) * | 1996-05-09 | 2001-10-24 | 冶金工业部包头稀土研究院 | Production of crystalline state and amorphous state rare-earth metal alloy threadlet and its device |
| CN1070091C (en) * | 1998-04-29 | 2001-08-29 | 武钢铁路工程器材厂 | Method for prodn. of rare-earth metal wire |
| CN1151292C (en) * | 2001-10-29 | 2004-05-26 | 武钢铁路工程器材厂 | Method for manufacturing wires and bar of rare earth metal with high lanthanum being mixed into and wires and bar of rare earth alloy containing aluminum, barium, calcium and magnesium |
| KR101207735B1 (en) * | 2010-05-26 | 2012-12-03 | 주식회사 포스코 | Apparatus for coiling a wire |
| CN102703758B (en) * | 2012-01-13 | 2014-06-11 | 江苏麟龙新材料股份有限公司 | La-Nd-containing zinc-aluminum alloy wire and production method thereof |
| US20140328959A1 (en) * | 2013-05-03 | 2014-11-06 | Battelle Memorial Institute | System and process for friction consolidation fabrication of permanent magnets and other extrusion and non-extrusion structures |
| CN109078995B (en) * | 2018-08-27 | 2024-04-26 | 嘉兴亚华线缆有限公司 | Metal wire drawing device |
| CN210386988U (en) * | 2019-09-06 | 2020-04-24 | 运城学院 | Wire drawing device for metal wire processing |
| CN110918665B (en) * | 2019-12-18 | 2021-09-07 | 长沙新材料产业研究院有限公司 | High rare earth content aluminum alloy wire drawing die |
| CN112725675B (en) * | 2020-12-23 | 2021-11-09 | 苏州希镝瑞新材料科技有限公司 | Method for manufacturing dysprosium/terbium target |
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