CN111112811A - Plasma cutting electrode and manufacturing method thereof - Google Patents
Plasma cutting electrode and manufacturing method thereof Download PDFInfo
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- CN111112811A CN111112811A CN202010172868.5A CN202010172868A CN111112811A CN 111112811 A CN111112811 A CN 111112811A CN 202010172868 A CN202010172868 A CN 202010172868A CN 111112811 A CN111112811 A CN 111112811A
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- 238000005520 cutting process Methods 0.000 title claims abstract description 40
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 239000004020 conductor Substances 0.000 claims abstract description 151
- 238000003466 welding Methods 0.000 claims abstract description 47
- 239000000463 material Substances 0.000 claims abstract description 28
- 238000010438 heat treatment Methods 0.000 claims description 45
- 229910001316 Ag alloy Inorganic materials 0.000 claims description 13
- 238000007664 blowing Methods 0.000 claims description 10
- 238000004140 cleaning Methods 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 9
- 238000001035 drying Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- 238000004506 ultrasonic cleaning Methods 0.000 claims description 7
- 238000003825 pressing Methods 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910052735 hafnium Inorganic materials 0.000 claims description 3
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 claims description 3
- 239000012535 impurity Substances 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 3
- 229910052721 tungsten Inorganic materials 0.000 claims description 3
- 239000010937 tungsten Substances 0.000 claims description 3
- 238000004321 preservation Methods 0.000 claims description 2
- 230000017525 heat dissipation Effects 0.000 abstract description 8
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 description 3
- 238000003754 machining Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 229910001297 Zn alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- B23K10/00—Welding or cutting by means of a plasma
-
- 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
-
- 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
- B23K20/129—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 specially adapted for particular articles or workpieces
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Arc Welding In General (AREA)
- Plasma Technology (AREA)
Abstract
The invention provides a plasma cutting electrode and a manufacturing method thereof, wherein the electrode comprises a first conductor, wherein a first step is arranged in the outer end of the first conductor along the circumferential direction; a second conductor is fixedly arranged in the first conductor, a second step corresponding to the first step is arranged at the outer end of the second conductor, a welding seam for connecting the first conductor and the second conductor is arranged between the first step and the second step, a boss is arranged at the inner end of the second conductor, and the boss is coaxial with the first conductor; the outer end face of the second conductor is provided with a blind hole, and a transmitting body is arranged in the blind hole; a plurality of convex edges are uniformly distributed on the side surface of the emitter along the axial direction; the side of the blind hole is provided with a clamping groove corresponding to the convex edge. The weld is formed by friction welding of a first conductor, a second conductor, and a compensating material disposed between the first conductor and the second conductor. The plasma cutting electrode provided by the invention can ensure the heat dissipation of the emitter and the electrical conductivity of the whole plasma cutting electrode, and has the advantages of time saving, high efficiency, energy saving and environmental protection.
Description
Technical Field
The invention relates to the technical field of machining, in particular to a plasma cutting electrode and a manufacturing method thereof.
Background
In modern industrial application, machining is increasingly applied by a plasma cutting method, the plasma cutting is a method for cutting by utilizing the heat energy of plasma arcs, and the principle of the plasma cutting is a process of taking high-temperature and high-speed plasma arcs as heat sources and blowing away melted metal or nonmetal by utilizing a high-speed mechanical scouring force to form a narrow cut. In the plasma cutting link, the consumption of the electrode is huge, the consumption of the electrode mainly refers to the consumption of the emitter, and the main reason is that the heat dissipation of the emitter is not fast enough, so that the problem of heat dissipation of the emitter is solved, the loss of the emitter is reduced, the service time of the emitter is prolonged, the use cost of a user is reduced, and meanwhile, the cutting quality of materials is also improved.
Disclosure of Invention
In order to overcome the technical problems, the invention provides a plasma cutting electrode which has long service life and can ensure the cutting effect and a manufacturing method thereof, and the specific scheme is as follows:
a plasma cutting electrode comprises a tubular first conductor, wherein a first step is arranged inside the outer end of the first conductor along the circumferential direction; a second conductor is fixedly arranged in the first conductor, a second step corresponding to the first step is arranged at the outer end of the second conductor, a welding seam for connecting the first conductor and the second conductor is arranged between the first step and the second step, a boss is arranged at the inner end of the second conductor, and the boss is coaxial with the first conductor; a blind hole is formed in the outer end face of the second conductor, and a transmitting body is arranged in the blind hole; a plurality of convex edges are uniformly distributed on the side surface of the emitter along the axial direction; and the side surface of the blind hole is provided with a clamping groove corresponding to the convex edge.
Based on the above, the top of blind hole is equipped with the chamfer, be interference fit between emitter, the blind hole.
Based on the above, the weld is formed by friction welding the first conductor, the second conductor and the compensation material placed between the first conductor and the second conductor.
Based on the above, the compensation material is silver alloy wire.
Based on the above, the material of the first conductor is oxygen-free copper or copper alloy.
Based on the above, the material of the second conductor is silver or silver alloy.
Based on the above, the material of the emitter is hafnium or tungsten.
Based on the above, the cross-sectional shape of the rib is rectangular, circular or triangular.
According to the plasma cutting electrode, the manufacturing method comprises the following steps:
step 1: manufacturing a launching body by adopting a mould;
step 2: a blind hole and a clamping groove which correspond to the outline of the emitter and can be in interference fit with the emitter are formed in the outer end face of the second conductor by a numerical control machine tool, and chamfers which are easy to assemble are formed in the outer end faces of the blind hole and the clamping groove;
and step 3: cleaning the second conductor and the emitter by using an ultrasonic cleaner to remove impurities such as an oxide film, oil stains and the like on the surfaces of the second conductor and the emitter, and drying the second conductor and the emitter by hot air blowing;
and 4, step 4: pressing the emitter into the blind hole in a cold pressing mode;
and 5: cleaning the first conductor by using an ultrasonic cleaning machine to remove an oxide film and oil stains on the surface, and then drying the first conductor by hot air blowing;
step 6: carrying out heat treatment on the first conductor, placing the first conductor in a heating furnace, heating to T1 ℃ at a speed of heating to 10 ℃ per minute, and after keeping the temperature for n1 minutes, cooling the first conductor to the normal temperature along with the heating furnace, wherein the temperature range of T1 is 180-200 ℃, and the time range of n1 is 5-30 minutes;
and 7: carrying out heat treatment on the second conductor provided with the emitter, placing the second conductor in a heating furnace, heating to T2 ℃ at the speed of heating to 10 ℃ per minute, and cooling the second conductor to the normal temperature along with the heating furnace after keeping the temperature for n2 minutes, wherein the temperature range of T2 is 160-200 ℃, and the time range of n2 is 20-120 minutes;
and 8: fixing a first conductor at the fixed end of a friction welding machine, fixedly clamping a boss of a second conductor at the rotating end of the friction welding machine, wherein the first conductor is coaxial with the second conductor and a first step is opposite to a second step;
and step 9: cleaning a welding compensation material, namely a silver alloy wire, by using an ultrasonic cleaning machine, drying the welding compensation material by hot air blowing, and coiling the welding compensation material at a first step in a first conductor;
step 10: starting the rotating end to perform friction welding, and melting the silver alloy wire to form a welding seam between the first conductor and the second conductor;
step 11: carrying out heat treatment on the welding seam, placing the welded plasma cutting electrode in a heating furnace, heating to T3 ℃ at the speed of heating to 10 ℃ per minute, keeping the temperature for n3 minutes, and then cooling the plasma cutting electrode to the normal temperature along with the heating furnace, wherein the temperature range of T3 is 120-150 ℃, and the time range of n3 is 10-60 minutes;
step 12: cutting the compensation material protruding out of the outer end face of the first conductor or the second conductor generated in the friction welding process;
step 13: and (5) finishing the manufacturing.
Compared with the prior art, the invention has outstanding substantive characteristics and remarkable progress, and particularly has the following advantages:
1. according to the invention, a plurality of convex edges are arranged on the side surface of the emitter along the circumferential direction, the second conductor is provided with the blind hole, the side surface of the blind hole is provided with a clamping groove corresponding to the convex edges, the blind hole and the clamping groove are in interference fit, and chamfers convenient to mount are arranged at the outer ends of the blind hole and the clamping groove; compared with the traditional design mode between the emitter and the conductor, the structural design improves the assembly efficiency of the emitter and the conductor, ensures the conductivity between the emitter and the conductor, accelerates the heat dissipation speed of the emitter, and is beneficial to prolonging the service life of the plasma cutting electrode.
2. According to the invention, the first conductor and the second conductor are subjected to friction welding, and the compensation material is added in the friction welding process, so that the first conductor and the second conductor are ensured to be in good contact, the electrical conductivity and the thermal conductivity between the first conductor and the second conductor are further ensured, the heat dissipation efficiency of the emitter is also ensured, and the service life of the emitter is prolonged; in addition, friction welding does not need to depend on skilled welders, welding speed is high, preparation workload is low, and welding smoke or other gases which cause serious pollution to the environment are not generated.
Drawings
Fig. 1 is a front sectional view of the overall structure of the present invention.
Fig. 2 is a left side view of the overall structure of the present invention.
Fig. 3 is a separate cross-sectional view of the overall structure of the present invention.
Fig. 4 is a front view of a second conductor in the present invention.
Fig. 5 is a left side view of a second conductor in the present invention.
Fig. 6 is a right side view of a second conductor in the present invention.
Fig. 7 is a front view of the projectile of the present invention.
Fig. 8 is a right side view of the projectile in the present invention.
In the figure: 1. a first conductor; 1.1, a first step; 2. a second conductor; 2.1, blind holes; 2.2, a clamping groove; 2.3, a second step; 2.4, chamfering; 2.5, a boss; 3. an emitter; 3.1, ribs; 4. welding seams; 4.1, silver alloy wires.
Detailed Description
The technical solution of the present invention is further described in detail by the following embodiments.
Examples
As shown in fig. 1 to 8, the present invention provides a plasma cutting electrode, which comprises a first conductor 1 in a tubular shape, wherein a first step 1.1 is arranged inside an outer end of the first conductor 1 along a circumferential direction.
The inner part of the first conductor 1 is fixedly provided with a second conductor 2, the outer end of the second conductor 2 is provided with a second step 2.3 corresponding to the first step 1.1, a welding seam 4 for connecting the first conductor 1 and the second conductor 2 is arranged between the first step 1.1 and the second step 2.3, the inner end of the second conductor 2 is provided with a boss 2.5, and the boss 2.5 is coaxial with the first conductor 1.
A blind hole 2.1 is formed in the outer end face of the second conductor 2, and an emitter 3 is arranged in the blind hole 2.1; in order to increase the contact area between the emitter 3 and the second conductor 2 and facilitate the heat dissipation of the emitter 3, a plurality of ribs 3.1 are uniformly distributed on the side surface of the emitter 3 along the axial direction, the cross section of each rib 3.1 can be rectangular, circular or triangular, the rectangular shape is selected here, and the side surface of the blind hole 2.1 is provided with a clamping groove 2.2 corresponding to each rib 3.1.
It should be noted that the emitter 3 and the blind hole 2.1 are assembled in an interference manner, and in order to facilitate installation of the emitter 3, chamfers 2.4 are arranged at the tops of the blind hole 2.1 and the clamping groove 2.2.
In order to ensure the overall electrical conductivity and heat dissipation of the plasma cutting electrode, the welding seam 4 is formed by friction welding the first conductor 1, the second conductor 2 and a compensation material placed between the first conductor 1 and the second conductor 2, wherein the compensation material is a silver alloy wire 4.1.
The material of the first conductor 1 can adopt oxygen-free copper or copper alloy; the material of the second conductor 2 is silver or silver alloy; the emitter 3 is made of hafnium or tungsten.
The manufacturing method of the plasma cutting electrode comprises the following steps:
step 1: manufacturing the emitter 3 by adopting a mould;
step 2: a blind hole 2.1 and a clamping groove 2.2 which correspond to the outer contour of the emitter 3 and can be in interference fit with the emitter 3 are formed in the outer end face of the second conductor 2 by a numerical control machine tool, and chamfers 2.4 which are easy to assemble are formed in the outer end faces of the blind hole 2.1 and the clamping groove 2.2;
and step 3: cleaning the second conductor 2 and the emitter 3 by using an ultrasonic cleaner to remove impurities such as an oxide film, oil stains and the like on the surfaces of the second conductor 2 and the emitter 3, and drying the second conductor 2 and the emitter 3 by hot air blowing; (ii) a
And 4, step 4: pressing the emitter 3 into the blind hole 2.1 by adopting a cold pressing mode;
and 5: cleaning the first conductor 1 by using an ultrasonic cleaning machine to remove an oxide film and oil stains on the surface, and then drying the first conductor by hot air blowing;
step 6: carrying out heat treatment on the first conductor 1, placing the first conductor 1 in a heating furnace, heating to T1 ℃ at a speed of heating to 10 ℃ per minute, and after keeping the temperature for n1 minutes, cooling the first conductor 1 to the normal temperature along with the heating furnace, wherein the temperature range of T1 is 180-200 ℃, and the time range of n1 is 5-30 minutes;
and 7: carrying out heat treatment on the second conductor 2 provided with the emitter 3, placing the second conductor 2 in a heating furnace, heating to T2 ℃ at a speed of heating to 10 ℃ per minute, and cooling the second conductor 2 to normal temperature along with the heating furnace after heat preservation for n2 minutes, wherein the temperature range of T2 is 160-200 ℃, and the time range of n2 is 20-120 minutes;
and 8: fixing a first conductor 1 at the fixed end of a friction welding machine, fixedly clamping a boss 2.5 of a second conductor 2 at the rotating end of the friction welding machine, wherein the first conductor 1 is coaxial with the second conductor 2, and a first step 1.1 is opposite to a second step 2.3;
and step 9: cleaning a compensation material for welding, namely a silver alloy wire 4.1 by using an ultrasonic cleaning machine, drying the compensation material by hot air blowing, and coiling the compensation material at a first step 1.1 in a first conductor 1;
step 10: starting the rotating end to perform friction welding, and melting the silver alloy wire 4.1 to form a welding seam 4 between the first conductor 1 and the second conductor 2;
step 11: carrying out heat treatment on the welding seam 4, placing the welded plasma cutting electrode in a heating furnace, heating to T3 ℃ at the speed of heating to 10 ℃ per minute, and after preserving heat for n3 minutes, cooling the plasma cutting electrode to normal temperature along with the heating furnace, wherein the temperature range of T3 is 120-150 ℃, and the time range of n3 is 10-60 minutes;
step 12: cutting the compensation material which is generated in the friction welding process and protrudes out of the outer end face of the first conductor 1 or the second conductor 2;
step 13: and (5) finishing the manufacturing.
According to the plasma cutting electrode provided by the invention, the side surface of the emitter 3 is provided with the plurality of convex edges 3.1 along the circumferential direction, the second conductor 2 is provided with the blind hole 2.1, the side surface of the blind hole 2.1 is provided with the clamping groove 2.2 corresponding to the convex edges 3.1, the blind hole 2.1 and the clamping groove 2.2 are in interference fit, and the outer ends of the blind hole 2.1 and the clamping groove 2.2 are provided with the chamfers 2.4 convenient to mount; for the design between traditional emitter 3 and the conductor, this structural design has promoted the assembly efficiency of emitter 3 with the conductor, has guaranteed the electric conductivity between emitter 3 and the conductor, has also accelerated the radiating rate of emitter 3 simultaneously, is favorable to prolonging the life of plasma cutting electrode.
In addition, friction welding is adopted between the first conductor 1 and the second conductor 2, and a compensation material for welding, namely a zinc alloy wire, is added in the friction welding process, so that the first conductor 1 and the second conductor 2 are ensured to be in good contact, the electrical conductivity and the thermal conductivity between the first conductor 1 and the second conductor 2 are further ensured, the heat dissipation efficiency of the emitter 3 is also ensured, and the service life of the emitter 3 is prolonged; in addition, friction welding does not need to depend on skilled welders, welding speed is high, preparation workload is small, welding smoke is not generated, working hours are saved, and the welding device has the characteristics of energy conservation and environmental protection.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will understand that: modifications to the specific embodiments of the invention or equivalent substitutions for parts of the technical features may be made; without departing from the spirit of the present invention, it is intended to cover all aspects of the invention as defined by the appended claims.
Claims (9)
1. A plasma cutting electrode, characterized by: the device comprises a tubular first conductor (1), wherein a first step (1.1) is arranged inside the outer end of the first conductor (1) along the circumferential direction; a second conductor (2) is fixedly arranged in the first conductor (1), a second step (2.3) corresponding to the first step (1.1) is arranged at the outer end of the second conductor (2), a welding seam (4) for connecting the first conductor (1) and the second conductor (2) is arranged between the first step (1.1) and the second step (2.3), a boss (2.5) is arranged at the inner end of the second conductor (2), and the boss (2.5) is coaxial with the first conductor (1); a blind hole (2.1) is formed in the outer end face of the second conductor (2), and an emitter (3) is arranged in the blind hole (2.1); a plurality of convex ribs (3.1) are uniformly distributed on the side surface of the emitter (3) along the axial direction; and a clamping groove (2.2) corresponding to the convex rib (3.1) is arranged on the side surface of the blind hole (2.1).
2. The plasma cutting electrode of claim 1, wherein: the top of blind hole (2.1) is equipped with chamfer (2.4), be interference fit between emitter (3), blind hole (2.1).
3. The plasma cutting electrode of claim 2, wherein: the weld seam (4) is formed by friction welding of the first conductor (1), the second conductor (2) and a compensating material placed between the first conductor (1) and the second conductor (2).
4. The plasma cutting electrode of claim 3, wherein: the compensation material is silver alloy wire (4.1).
5. The plasma cutting electrode of claim 3, wherein: the first conductor (1) is made of oxygen-free copper or copper alloy.
6. The plasma cutting electrode of claim 3, wherein: the material of the second conductor (2) is silver or silver alloy.
7. The plasma cutting electrode of claim 3, wherein: the emitter (3) is made of hafnium or tungsten.
8. The plasma cutting electrode according to any one of claims 1 to 7, wherein: the section of the convex rib (3.1) is rectangular, circular or triangular.
9. The method of claim 8, wherein the plasma cutting electrode comprises: the manufacturing method comprises the following steps:
step 1: manufacturing an emitter (3) by adopting a mould;
step 2: a blind hole (2.1) and a clamping groove (2.2) which correspond to the outer contour of the emitter (3) and can be in interference fit with the emitter are formed in the outer end face of the second conductor (2) by a numerical control machine tool, and chamfers (2.4) which are easy to assemble are formed in the outer end faces of the blind hole (2.1) and the clamping groove (2.2);
and step 3: cleaning the second conductor (2) and the emitter (3) by using an ultrasonic cleaning machine to remove impurities such as an oxide film, oil stains and the like on the surfaces of the second conductor and the emitter (3), and drying the second conductor (2) and the emitter (3) by hot air blowing;
and 4, step 4: pressing the emitter (3) into the blind hole (2.1) in a cold pressing mode;
and 5: cleaning the first conductor (1) by using an ultrasonic cleaning machine to remove an oxide film and oil stains on the surface, and then drying the first conductor by hot air blowing;
step 6: carrying out heat treatment on the first conductor (1), placing the first conductor (1) in a heating furnace, heating to T1 ℃ at a speed of heating to 10 ℃ per minute, and cooling the first conductor (1) to normal temperature along with a heating furnace after heat preservation for n1 minutes, wherein the temperature range of T1 is 180-200 ℃, and the time range of n1 is 5-30 minutes;
and 7: carrying out heat treatment on the second conductor (2) provided with the emitter (3), placing the second conductor (2) in a heating furnace, heating to T2 ℃ at the speed of heating to 10 ℃ per minute, and after preserving heat for n2 minutes, cooling the second conductor (2) to the normal temperature along with the heating furnace, wherein the temperature range of T2 is 160-200 ℃, and the time range of n2 is 20-120 minutes;
and 8: fixing a first conductor (1) at the fixed end of a friction welding machine, fixedly clamping a boss (2.5) of a second conductor (2) at the rotating end of the friction welding machine, wherein the first conductor (1) is coaxial with the second conductor (2), and a first step (1.1) is opposite to a second step (2.3);
and step 9: cleaning a welding compensation material, namely a silver alloy wire (4.1), by using an ultrasonic cleaning machine, drying the welding compensation material by hot air blowing, and coiling the welding compensation material at a first step (1.1) in a first conductor (1);
step 10: starting the rotating end to perform friction welding, and melting the silver alloy wire (4.1) to form a welding seam (4) between the first conductor (1) and the second conductor (2);
step 11: carrying out heat treatment on the welding seam (4), placing the welded plasma cutting electrode in a heating furnace, heating to T3 ℃ at the speed of heating to 10 ℃ per minute, and cooling the plasma cutting electrode to normal temperature along with the heating furnace after preserving heat for n3 minutes, wherein the temperature range of T3 is 120-150 ℃, and the time range of n3 is 10-60 minutes;
step 12: cutting the compensation material which is generated in the friction welding process and protrudes out of the outer end face of the first conductor (1) or the second conductor (2);
step 13: and (5) finishing the manufacturing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010172868.5A CN111112811A (en) | 2020-03-13 | 2020-03-13 | Plasma cutting electrode and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010172868.5A CN111112811A (en) | 2020-03-13 | 2020-03-13 | Plasma cutting electrode and manufacturing method thereof |
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| CN111112811A true CN111112811A (en) | 2020-05-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022134708A1 (en) * | 2020-12-24 | 2022-06-30 | 江苏博迁新材料股份有限公司 | Cathode structure of high-power plasma arc torch |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020125224A1 (en) * | 2001-03-09 | 2002-09-12 | Cook David J. | Composite electrode for a plasma arc torch |
| CN203875467U (en) * | 2014-05-28 | 2014-10-15 | 江阴埃尔克切割设备有限公司 | Silver end surface plasma cutting electrode |
| CN205464763U (en) * | 2016-02-22 | 2016-08-17 | 江阴埃尔克切割设备有限公司 | Plasma cutting electrode |
| CN108500435A (en) * | 2017-02-24 | 2018-09-07 | 林肯环球股份有限公司 | Soldering electrodes for plasma cutting-torch |
-
2020
- 2020-03-13 CN CN202010172868.5A patent/CN111112811A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020125224A1 (en) * | 2001-03-09 | 2002-09-12 | Cook David J. | Composite electrode for a plasma arc torch |
| CN203875467U (en) * | 2014-05-28 | 2014-10-15 | 江阴埃尔克切割设备有限公司 | Silver end surface plasma cutting electrode |
| CN205464763U (en) * | 2016-02-22 | 2016-08-17 | 江阴埃尔克切割设备有限公司 | Plasma cutting electrode |
| CN108500435A (en) * | 2017-02-24 | 2018-09-07 | 林肯环球股份有限公司 | Soldering electrodes for plasma cutting-torch |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022134708A1 (en) * | 2020-12-24 | 2022-06-30 | 江苏博迁新材料股份有限公司 | Cathode structure of high-power plasma arc torch |
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