CN111468849A - Rare earth magnetic disk welding process - Google Patents
Rare earth magnetic disk welding process Download PDFInfo
- Publication number
- CN111468849A CN111468849A CN202010293413.9A CN202010293413A CN111468849A CN 111468849 A CN111468849 A CN 111468849A CN 202010293413 A CN202010293413 A CN 202010293413A CN 111468849 A CN111468849 A CN 111468849A
- Authority
- CN
- China
- Prior art keywords
- welding
- rare earth
- magnetic disk
- disk
- plate
- 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.)
- Granted
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K28/00—Welding or cutting not covered by any of the preceding groups, e.g. electrolytic welding
- B23K28/02—Combined welding or cutting procedures or apparatus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
- B23K20/122—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding
- B23K20/127—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding friction stir welding involving a mechanical connection
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/24—Preliminary treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
The invention relates to the technical field of disk processing, in particular to a rare earth disk welding process, which comprises the following steps: polishing and cleaning two side surfaces of the magnetic disk frame, and areas to be welded of the first covering plate and the second covering plate; spot welding and fixing the first shroud plate on the disk frame by using resistance spot welding; continuously sealing and welding the first shroud plate to the disk frame by friction stir welding; after turning over the rare earth magnetic disk, welding a second cover plate on the magnetic disk frame by using resistance spot welding and friction stir welding in sequence; drilling holes on the surface of the rare earth magnetic disk, introducing high-pressure gas to test the air tightness of the rare earth magnetic disk, injecting hydraulic oil into the holes after the air tightness is detected to be qualified, and performing repair welding on the holes. The invention can increase the welding strength and reduce the continuous sealing welding deformation of the subsequent friction stir welding by resistance spot welding prewelding; the continuous sealing welding is realized through the friction stir welding, the welding sealing is reliable, and the welding strength is high; the method is simple to operate, high in welding efficiency, low in cost and easy for batch production.
Description
Technical Field
The invention relates to the technical field of disk processing, in particular to a rare earth disk welding process.
Background
In recent years, a magnetic flocculation-rare earth magnetic disk separation water body purification technology formed by combining a rare earth magnetic disk separation technology and a flocculation technology is widely applied to various fields such as black odorous water treatment, coal mine water treatment, landscape water treatment, distributed sewage treatment, temporary emergency sewage interception treatment and the like, and is an advanced water treatment technology which is mainly popularized and applied. The rare earth magnetic disk is a core component of a separation water body purification technology, the diameter of the rare earth magnetic disk determines the processing capacity, the surface magnetic strength determines the processing effect, the thinner the magnetic disk is, the higher the surface magnetic strength is, the lighter the weight of the magnetic disk is, and the lower the cost is; the larger the diameter of the magnetic disk is, the larger the single-disk treatment capacity is, and the lower the unit sewage treatment magnetic disk cost is, so that the rare earth magnetic disk has a large-scale and ultrathin development trend.
In the assembling process of the rare earth magnetic disk, cover plates are usually welded on two side faces of a magnetic disk frame to protect magnetic blocks arranged in the magnetic disk frame, but the large-diameter rare earth magnetic disk is high in magnetic field intensity, large in size and thin in stainless steel cover plate, the problems of large welding deformation, difficult arc starting, serious magnetic blow, demagnetization of high-temperature magnetic blocks and the like exist in the conventional welding technology, the problems are usually solved by adopting a complex magnetic shielding technology and a special argon arc welding process, but the method has the defects of magnetic field shielding in the welding process, great technical difficulty and high cost. In addition, the existing stainless steel rare earth magnetic disk is heavy and not beneficial to the large-scale equipment.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a rare earth disk welding process, which can accurately position and effectively clamp a rare earth disk, can ensure the welding quality of the rare earth disk, and simultaneously realizes the light weight of the rare earth disk.
In order to solve the technical problems, the invention adopts the technical scheme that:
the welding process of the rare earth magnetic disk is provided, wherein the rare earth magnetic disk comprises a magnetic disk frame, a magnetic block embedded in the magnetic disk frame, and a first cover plate and a second cover plate which are respectively welded on two side faces of the magnetic disk frame, and the magnetic disk frame comprises an inner circular ring, an outer circular ring and a frame rib plate connected between the inner circular ring and the outer circular ring; the welding process comprises the following steps:
s10, grinding, polishing and cleaning two side faces of the disk frame, the areas to be welded of the first covering plate and the second covering plate;
s20, clamping the first covering plate above the disk frame through a welding fixture, and drawing a frame rib plate position line on the surface of the first covering plate;
s30, welding the first cover plate to the magnetic disk frame along the positions of the inner circular ring, the outer circular ring and the frame rib plate by using resistance spot welding;
s40, removing the welding fixture, and continuously welding the first cover plate to the disk frame in a sealing manner along the positions of the inner circular ring and the outer circular ring of the resistance spot welding in the step S30 by using friction stir welding with a cooling system;
s50, turning over the rare earth magnetic disk to enable the first clad plate to be located below, installing a magnetic block in the magnetic disk frame, enabling the second clad plate to be located above the magnetic disk frame, and clamping the second clad plate above the magnetic disk frame through a welding clamp;
s60, welding a second shroud plate to the disk frame along the positions of the inner circular ring, the outer circular ring and the frame rib plate by using resistance spot welding;
s70, removing the welding fixture, and continuously welding the second cover plate to the disk frame in a sealing manner along the positions of the inner circular ring and the outer circular ring of the resistance spot welding in the step S60 by using friction stir welding with a cooling system;
s80, drilling holes in the surface of the rare earth magnetic disk, introducing high-pressure gas to test the air tightness of the rare earth magnetic disk, injecting hydraulic oil into the holes after the air tightness is detected to be qualified, and performing repair welding on the holes.
According to the rare earth magnetic disk welding process, the welding strength can be increased through resistance spot welding prewelding, and the continuous sealing welding deformation of subsequent friction stir welding is reduced; the continuous sealing welding is realized through the friction stir welding, the welding sealing is reliable, and the welding strength is high; the friction stir welding is provided with a cooling system, so that the welding deformation of a magnetic disc can be effectively controlled, and the demagnetization of a magnetic block caused by high welding temperature is reduced; the invention has the advantages of simple operation, high welding efficiency, low cost and easy realization of batch production.
Preferably, the disk frame, the first shroud plate and the second shroud plate are made of aluminum alloy. Compared with a 304 stainless steel material, the aluminum alloy is adopted as a manufacturing material, so that the weight of the magnetic disk can be effectively reduced, and the material cost can be reduced; and the whole welding process is slightly influenced by the magnetic field, and the magnetic field does not need to be shielded.
Preferably, in steps S30 and S60, the frame rib includes a plurality of support bars radially distributed along the outer ring. The frame rib plate arranged in the way not only has better bearing performance, but also has beautiful appearance and better processability.
Preferably, a plurality of welding points are uniformly distributed between each support bar and the first covering plate and between each support bar and the second covering plate, at least one welding point is arranged on the inner circular ring between adjacent support bars, and at least two welding points are arranged on the outer circular ring between adjacent support bars. The girth of outer ring is longer than the girth of interior ring, sets up more solder joint figure, can increase resistance spot welding's fixed effect, can prevent the deformation of continuous seal welding process better.
Preferably, in steps S30 and S60, the welding pressure of the resistance spot welding is 1.2KN to 10KN, the welding current is 3.5KA to 11KA, and the welding time is 0.08S to 0.4S. The welding parameters of the resistance spot welding are not limited to the above ranges, and the welding parameters may be changed according to the thickness of the first and second sheathing panels.
Preferably, in the step S40 and the step S70, the welding speed of the friction stir welding is 1000r/min to 1600rad/min, the welding speed is 25mm/min to 45mm/min, the pressing depth is 0.1mm to 1mm, and the adopted stirring head is a non-ferromagnetic stirring head; the cooling system is a water cooling system or an air cooling system. The welding parameters of the friction stir welding are not limited to the above ranges, and the welding parameters can be changed according to the thickness change of the first shroud plate and the second shroud plate; the non-ferromagnetic stirring head can avoid the influence of a strong magnetic field generated by the magnetic block on friction stir welding, and the cooling system can avoid the deformation caused by high welding temperature and the demagnetization of the magnetic block caused by high welding temperature.
Preferably, in steps S40 and S70, the friction stir welding generates a keyhole and the keyhole is subjected to repair welding. And the key hole is subjected to repair welding by adopting resistance spot welding or other welding modes, so that the sealing property inside the rare earth magnetic disk is ensured.
Preferably, the non-ferromagnetic stirring head comprises a tungsten-rhenium alloy stirring head and a tungsten-nickel alloy stirring head. The non-ferromagnetic stirring head can avoid the influence of a strong magnetic field generated by the magnetic block on friction stir welding and prolong the service life of the stirring head, but the non-ferromagnetic stirring head is not limited to the two types, and other non-ferromagnetic stirring heads can also be suitable for the invention.
Preferably, welding jig includes first anchor clamps and the second anchor clamps of non-magnetic conductivity, the top of connecting in first anchor clamps can be dismantled to the second anchor clamps, the tombarthite disk is installed between first anchor clamps and second anchor clamps, the second anchor clamps include that the multiunit is used for the first mounting of fixed tombarthite disk inner circle and the second mounting that the multiunit is used for fixed tombarthite disk outer lane, and the first mounting of multiunit, multiunit second mounting all are ring shape evenly distributed. The rare earth disk is clamped between the first clamp and the second clamp by adopting the first clamp and the second clamp which are not magnetic conductive, so that the influence of a strong magnetic field generated by the rare earth disk on the clamps can be avoided, the rare earth disk is clamped between the first clamp and the second clamp, the inner ring of the rare earth disk is uniformly compressed by adopting the first fixing piece, and the outer ring of the rare earth disk is uniformly compressed by adopting the second fixing piece, so that the cover plate and the disk frame can be accurately positioned and effectively clamped, and the welding work is convenient to carry out.
Preferably, the one end of first mounting, the one end of second mounting all with support ring swing joint, the other end of first mounting, second mounting all is equipped with the fixed orifices, swing joint has the piece that compresses tightly in the fixed orifices. One ends of the first fixing piece and the second fixing piece can flexibly rotate relative to the support ring, so that a magnetic disc can be conveniently assembled and disassembled; the compressing piece is connected in the fixing hole so as to compress or loosen the magnetic disc.
Compared with the prior art, the invention has the beneficial effects that:
according to the rare earth magnetic disk welding process, the welding strength can be increased through resistance spot welding prewelding, and the continuous sealing welding deformation of subsequent friction stir welding is reduced; continuous sealing welding is performed through friction stir welding, so that the welding is reliable in sealing, high in welding strength, simple to operate, high in welding efficiency, low in cost and easy to realize batch production;
the friction stir welding is provided with the cooling system, so that the welding deformation of the magnetic disc can be effectively controlled, and the demagnetization of the magnetic block caused by high welding temperature is reduced; the disk frame, the first shroud plate and the second shroud plate are made of aluminum alloy, so that the light weight of the rare earth disk can be realized; the magnetic disk frame, the first shroud plate, the second shroud plate, the welding fixture and the stirring head are all made of non-magnetic materials, so that the influence of a strong magnetic field generated by a rare earth magnetic disk on welding operation can be effectively avoided;
the invention adopts the integrated welding fixture to clamp the rare earth magnetic disc during the welding operation, has simple and convenient operation, can accurately position and effectively clamp the first shroud plate, the second shroud plate and the magnetic disc frame, and is convenient for the welding work.
Drawings
FIG. 1 is a schematic flow diagram of a rare earth disk welding process;
FIG. 2 is a schematic structural view of a rare earth disk welding fixture;
Detailed Description
The present invention will be further described with reference to the following embodiments. Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms may be understood by those skilled in the art according to specific circumstances.
Examples
As shown in fig. 1, a rare earth disk according to an embodiment of the welding process of the invention includes a disk frame, a magnetic block embedded in the disk frame, and a first cover plate and a second cover plate welded to two side surfaces of the disk frame, respectively, where the disk frame includes an inner ring, an outer ring, and a frame rib plate connected between the inner ring and the outer ring; the welding process comprises the following steps:
s10, grinding, polishing and cleaning two side faces of the disk frame, the areas to be welded of the first covering plate and the second covering plate;
s20, clamping the first covering plate above the disk frame through a welding fixture, and drawing a frame rib plate position line on the surface of the first covering plate;
s30, welding the first cover plate to the magnetic disk frame along the positions of the inner circular ring, the outer circular ring and the frame rib plate by using resistance spot welding;
s40, removing the welding fixture, and continuously welding the first cover plate to the disk frame in a sealing manner along the positions of the inner circular ring and the outer circular ring of the resistance spot welding in the step S30 by using friction stir welding with a cooling system;
s50, turning over the rare earth magnetic disk to enable the first clad plate to be located below, installing a magnetic block in the magnetic disk frame, enabling the second clad plate to be located above the magnetic disk frame, and clamping the second clad plate above the magnetic disk frame through a welding clamp;
s60, welding a second shroud plate to the disk frame along the positions of the inner circular ring, the outer circular ring and the frame rib plate by using resistance spot welding;
s70, removing the welding fixture, and continuously welding the second cover plate to the disk frame in a sealing manner along the positions of the inner circular ring and the outer circular ring of the resistance spot welding in the step S60 by using friction stir welding with a cooling system;
s80, drilling holes in the surface of the rare earth magnetic disk, introducing high-pressure gas to test the air tightness of the rare earth magnetic disk, injecting hydraulic oil into the holes after the air tightness is detected to be qualified, and performing repair welding on the holes.
When the method is implemented, the welding is performed in advance through resistance spot welding, so that the welding strength can be increased, and the continuous sealing welding deformation of subsequent friction stir welding is reduced; and then continuous sealing welding is carried out through friction stir welding, so that the welding is reliable in sealing and high in welding strength. Because the friction stir welding of this embodiment has cooling system, can effectively control the welding deformation of magnetic disc, and the magnetic block demagnetization that the welding high temperature leads to.
In this embodiment, the disk frame, the first shroud plate, and the second shroud plate are made of aluminum alloy. By the arrangement, on one hand, the weight of the magnetic disk can be effectively reduced, and the material cost is reduced; on the other hand, the whole welding process is slightly influenced by the magnetic field, the magnetic field does not need to be shielded in the welding process, and the operation is simple and convenient. However, it should be noted that the use of aluminum alloy as the material for the magnetic disk is preferable for reducing the weight of the magnetic disk and avoiding the influence of magnetic field, and is not intended to limit the present invention, and other materials having non-magnetic properties may be used for the present invention.
In step S30 and step S60, the frame rib includes a plurality of support bars distributed along the radial direction of the outer ring. The outer ring and the inner ring are coaxially arranged, the supporting strips radially radiate from the edge of the inner ring to the edge of the outer ring along the two, the bearing performance is good, the appearance is attractive, and the processing performance is better. When resistance spot welding is carried out, a plurality of welding points are uniformly distributed among each supporting strip, the first covering plate and the second covering plate so as to carry out prewelding and reduce the deformation of subsequent continuous sealing welding; the inner circular ring and the outer circular ring are of curved structures, so that the requirement on the pre-welding effect is higher; the circumference of the outer ring is longer than that of the inner ring, and the outer ring is more reliably welded, so that at least one welding point is arranged on the inner ring between adjacent support bars, and at least two welding points are arranged on the outer ring between adjacent support bars.
In steps S30 and S60, the welding parameters of resistance spot welding are not fixed, the purpose of resistance spot welding is to fix the disk frame and the first and second cover plates, and the welding spot formed by resistance spot welding needs to play a role in connecting the disk frame with the first and second cover plates, so the welding parameters of resistance spot welding are changed within the following ranges according to the thickness changes of the first and second cover plates: the welding pressure of the resistance spot welding is 1.2-10 KN, the welding current is 3.5-11 KA, and the welding time is 0.08-0.4 s. Specifically, the welding pressure, welding current, and welding time of the resistance welding are increased within the above ranges as the thickness of the first and second sheathing boards is increased.
Accordingly, in steps S40 and S70, the welding parameters of the friction stir welding are not fixed, the friction stir welding is aimed at fixing the disk frame and the first and second cover plates, and the continuous welding line formed by the friction stir welding is required to be used for connecting the disk frame and the first and second cover plates, so that the welding parameters of the friction stir welding are changed within the following ranges according to the thickness changes of the first and second cover plates: the welding speed of the friction stir welding is 1000 r/min-1600 rad/min, the welding speed is 25 mm/min-45 mm/min, and the pressing depth is 0.1 mm-1 mm. Specifically, the welding speed and the penetration depth of the friction stir welding increase within the above-described ranges as the thicknesses of the first and second skin plates increase, and the welding speed decreases within the above-described ranges as the thicknesses of the first and second skin plates increase. In the embodiment, the stirring head for friction stir welding adopts a non-ferromagnetic stirring head, and can adopt a tungsten-rhenium alloy stirring head and a tungsten-nickel alloy stirring head so as to avoid the influence of a strong magnetic field generated by a magnetic block on friction stir welding and prolong the service life of the stirring head; in the embodiment, an air cooling system or a water cooling system is adopted as a cooling system, the source is easy to obtain, and on one hand, deformation caused by high welding temperature can be avoided, and on the other hand, demagnetization of the magnetic block caused by high welding temperature can be avoided.
When friction stir welding is adopted for welding, key holes are formed in the surfaces of the first covering plate and the second covering plate through friction stir welding, and in the embodiment, the key holes need to be subjected to repair welding, so that the sealing property inside the rare earth magnetic disk is ensured, and the working stability of the rare earth magnetic disk is ensured. In step S80, performing the air tightness test of the rare earth disk, and if the air tightness test is qualified, completing welding; and if the hermetic seal detection is unqualified, detecting the leakage point and performing repair welding on the leakage point.
As shown in fig. 2, the welding fixture includes a first fixture and a second fixture which are non-magnetic, the second fixture is detachably connected above the first fixture, the rare earth disk is installed between the first fixture and the second fixture, the second fixture includes a plurality of groups of first fixing members 1 for fixing inner rings of the rare earth disk and a plurality of groups of second fixing members 2 for fixing outer rings of the rare earth disk, and the plurality of groups of first fixing members 1 and the plurality of groups of second fixing members 2 are uniformly distributed in a ring shape. When the device is implemented, the rare earth disk is clamped between the first clamp and the second clamp, the inner ring of the rare earth disk is uniformly compressed by the first fixing piece 1, and the outer ring of the rare earth disk is uniformly compressed by the second fixing piece 2, so that the cover plate and the disk frame can be accurately positioned and effectively clamped, and the welding work is facilitated.
Specifically, the one end of first mounting 1, second mounting 2 all with support ring swing joint, the other end of first mounting 1, second mounting 2 all is equipped with fixed orifices 3, swing joint has the piece that compresses tightly in the fixed orifices 3. Therefore, one ends of the first fixing piece 1 and the second fixing piece 2 can flexibly rotate relative to the support ring, so that the magnetic disc can be conveniently assembled and disassembled; the fixing hole 3 is internally connected with a pressing piece to press or release the magnetic disk. However, it should be noted that the connection between the first fixing member 1 and the second fixing member 2 and the support ring in this embodiment is not limited to the movable connection, and the first fixing member 1 and the second fixing member 2 may also be fixed to the support ring at one end and movably connected to the pressing member at the other end, so as to press and fix the disk.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A rare earth magnetic disk welding process comprises a magnetic disk frame, a magnetic block embedded in the magnetic disk frame, a first cover plate and a second cover plate, wherein the first cover plate and the second cover plate are respectively welded on two side faces of the magnetic disk frame; the welding process is characterized by comprising the following steps of:
s10, grinding, polishing and cleaning two side faces of the disk frame, the areas to be welded of the first covering plate and the second covering plate;
s20, clamping the first covering plate above the disk frame through a welding fixture, and drawing a frame rib plate position line on the surface of the first covering plate;
s30, welding the first cover plate to the magnetic disk frame along the positions of the inner circular ring, the outer circular ring and the frame rib plate by using resistance spot welding;
s40, removing the welding fixture, and continuously welding the first cover plate to the disk frame in a sealing manner along the positions of the inner circular ring and the outer circular ring of the resistance spot welding in the step S30 by using friction stir welding with a cooling system;
s50, turning over the rare earth magnetic disk to enable the first clad plate to be located below, installing a magnetic block in the magnetic disk frame, enabling the second clad plate to be located above the magnetic disk frame, and clamping the second clad plate above the magnetic disk frame through a welding clamp;
s60, welding a second shroud plate to the disk frame along the positions of the inner circular ring, the outer circular ring and the frame rib plate by using resistance spot welding;
s70, removing the welding fixture, and continuously welding the second cover plate to the disk frame in a sealing manner along the positions of the inner circular ring and the outer circular ring of the resistance spot welding in the step S60 by using friction stir welding with a cooling system;
s80, drilling holes in the surface of the rare earth magnetic disk, introducing high-pressure gas to test the air tightness of the rare earth magnetic disk, injecting hydraulic oil into the holes after the air tightness is detected to be qualified, and performing repair welding on the holes.
2. The rare earth disk welding process of claim 1, wherein the disk frame, the first shroud plate, and the second shroud plate are made of aluminum alloy.
3. The welding process for rare earth disks according to claim 1, wherein in steps S30 and S60, the frame ribs comprise a plurality of support bars radially distributed along the outer ring.
4. The process of claim 3, wherein a plurality of welding points are uniformly distributed between each support bar and the first shroud plate and the second shroud plate, at least one welding point is provided on the inner ring between adjacent support bars, and at least two welding points are provided on the outer ring between adjacent support bars.
5. The welding process for a rare earth magnetic disk according to claim 1, wherein in steps S30 and S60, the welding pressure of the resistance spot welding is 1.2KN to 10KN, the welding current is 3.5KA to 11KA, and the welding time is 0.08S to 0.4S.
6. The process for welding a rare earth magnetic disk according to claim 1, wherein in steps S40 and S70, the friction stir welding is performed at a welding speed of 1000r/min to 1600rad/min, a welding speed of 25mm/min to 45mm/min, and a pressing depth of 0.1mm to 1mm, and the stirring head used is a non-ferromagnetic stirring head; the cooling system is a water cooling system or an air cooling system.
7. The welding process for a rare earth magnetic disk according to claim 6, wherein the keyhole is generated by friction stir welding in steps S40 and S70, and the keyhole is subjected to repair welding.
8. The rare earth disk welding process of claim 6, wherein the non-ferromagnetic stir head comprises a tungsten-rhenium alloy stir head, a tungsten-nickel alloy stir head.
9. The rare earth disk welding process according to any one of claims 1 to 8, wherein the welding jig includes a first jig and a second jig which are not magnetically conductive, the second jig is detachably connected above the first jig, the rare earth disk is mounted between the first jig and the second jig, the second jig includes multiple groups of first fixing members for fixing an inner ring of the rare earth disk and multiple groups of second fixing members for fixing an outer ring of the rare earth disk, and the multiple groups of first fixing members and the multiple groups of second fixing members are uniformly distributed in a circular ring shape.
10. The welding process for rare earth disks according to claim 9, wherein one end of each of the first and second fixing members is movably connected to the support ring, and the other end of each of the first and second fixing members is provided with a fixing hole, and a pressing member is movably connected to the inside of the fixing hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010293413.9A CN111468849B (en) | 2020-04-15 | 2020-04-15 | Rare earth magnetic disk welding process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010293413.9A CN111468849B (en) | 2020-04-15 | 2020-04-15 | Rare earth magnetic disk welding process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111468849A true CN111468849A (en) | 2020-07-31 |
| CN111468849B CN111468849B (en) | 2021-07-13 |
Family
ID=71752481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010293413.9A Active CN111468849B (en) | 2020-04-15 | 2020-04-15 | Rare earth magnetic disk welding process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111468849B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113543614A (en) * | 2021-06-11 | 2021-10-22 | 西安空间无线电技术研究所 | Large passive intermodulation shielding darkroom |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3017905A1 (en) * | 2014-11-10 | 2016-05-11 | MAGNA STEYR Engineering AG & Co KG | Method for connecting two flat components |
| CN206014486U (en) * | 2016-09-12 | 2017-03-15 | 四川环能德美科技股份有限公司 | A kind of rare-earth magnetic dick separation purifying apparatus disk structure |
| JP2017196649A (en) * | 2016-04-28 | 2017-11-02 | 川崎重工業株式会社 | Point joint device, point joining method and joint structure |
| CN107665759A (en) * | 2017-11-18 | 2018-02-06 | 山东泾之渭环保设备工程有限公司 | A kind of efficient rare-earth disk |
| CN110977136A (en) * | 2019-10-09 | 2020-04-10 | 北京赛福斯特技术有限公司 | Electric permanent magnetic disc tool for friction stir welding |
-
2020
- 2020-04-15 CN CN202010293413.9A patent/CN111468849B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3017905A1 (en) * | 2014-11-10 | 2016-05-11 | MAGNA STEYR Engineering AG & Co KG | Method for connecting two flat components |
| JP2017196649A (en) * | 2016-04-28 | 2017-11-02 | 川崎重工業株式会社 | Point joint device, point joining method and joint structure |
| CN206014486U (en) * | 2016-09-12 | 2017-03-15 | 四川环能德美科技股份有限公司 | A kind of rare-earth magnetic dick separation purifying apparatus disk structure |
| CN107665759A (en) * | 2017-11-18 | 2018-02-06 | 山东泾之渭环保设备工程有限公司 | A kind of efficient rare-earth disk |
| CN110977136A (en) * | 2019-10-09 | 2020-04-10 | 北京赛福斯特技术有限公司 | Electric permanent magnetic disc tool for friction stir welding |
Non-Patent Citations (1)
| Title |
|---|
| 徐少华等: "超薄稀土磁盘分离机的研制与应用研究", 《现代矿业》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113543614A (en) * | 2021-06-11 | 2021-10-22 | 西安空间无线电技术研究所 | Large passive intermodulation shielding darkroom |
| CN113543614B (en) * | 2021-06-11 | 2022-10-21 | 西安空间无线电技术研究所 | Large passive intermodulation shielding darkroom |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111468849B (en) | 2021-07-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102990266B (en) | Argon tungsten-arc welding clamp for butt joint of thin steel strips and using method | |
| CN111468849B (en) | Rare earth magnetic disk welding process | |
| CN111451701A (en) | Seamless tensioning welding fixture for welding conical cylinder | |
| CN101699571B (en) | Method for manufacturing internal conducting rod of large-scaled high-frequency resonant cavity | |
| CN110434543B (en) | Welding tool and welding method for connecting disc | |
| CN111043857B (en) | Heat preservation section of thick bamboo draw-in groove device of fritting furnace | |
| CN112620988A (en) | Process for reducing welding deformation | |
| CN208601367U (en) | A kind of magnetic-type frock clamp of gasket production | |
| CN112045279B (en) | Butt joint method using U-shaped rib block of composite cushion block | |
| CN205520020U (en) | Two -sided shaping welding set of one side welding with back of body protection gas | |
| CN211759200U (en) | Special laser-electric arc composite efficient welding clamp for thick plate high-strength steel | |
| CN111774902B (en) | Valve body machining indexing fixture and machining method | |
| CN110757023B (en) | Welding repair method and device for cartridge receiver parts | |
| CN208543057U (en) | A kind of argon arc welding gas shield structure based on assembly tooling | |
| CN219796075U (en) | High-pressure-resistant metal winding gasket | |
| CN211162556U (en) | Portable plate splicing device | |
| CN110899948A (en) | Efficient and environment-friendly compressor shell circumferential seam resistance projection welding process | |
| CN214921407U (en) | Outlet pipe end cover structure suitable for laser welding | |
| CN219402758U (en) | Cutting edge welding device for multi-claw blade of shredder | |
| CN215410652U (en) | Oxygen hose connecting pipe device in front of iron-making furnace | |
| CN210549534U (en) | Piston ring clamping device | |
| CN216263971U (en) | Argon arc that can guarantee axiality welds uses frock | |
| CN209886878U (en) | Internal support type anti-deformation tool for heat dissipation of annular welding line | |
| CN108856970A (en) | The welding method of tandem electrogas welding suitable for high strength ultra-thick steel plates | |
| CN220312091U (en) | Arc structure welding jig and be applicable to air cock of this anchor clamps |
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 | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 510651 No. 363, Changxin Road, Guangzhou, Guangdong, Tianhe District Patentee after: Institute of resource utilization and rare earth development, Guangdong Academy of Sciences Patentee after: Foshan energy magnetic environment Technology Co.,Ltd. Address before: 510651 No. 363, Changxin Road, Guangzhou, Guangdong, Tianhe District Patentee before: Institute of resources comprehensive utilization, Guangdong Academy of Sciences Patentee before: Foshan energy magnetic environment Technology Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP03 | Change of name, title or address |
Address after: 510651 No. 363, Changxin Road, Guangzhou, Guangdong, Tianhe District Patentee after: Institute of resources comprehensive utilization, Guangdong Academy of Sciences Patentee after: Foshan energy magnetic environment Technology Co.,Ltd. Address before: No. 363, Changxing Road, Tianhe District, Guangzhou, Guangdong 510650 Patentee before: GUANGDONG INSTITUTE OF RESOURCES COMPREHENSIVE UTILIZATION Patentee before: Foshan energy magnetic environment Technology Co.,Ltd. |
|
| CP03 | Change of name, title or address |