CN210046142U - Plasma contact arc striking cutting gun head - Google Patents
Plasma contact arc striking cutting gun head Download PDFInfo
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- CN210046142U CN210046142U CN201920228177.5U CN201920228177U CN210046142U CN 210046142 U CN210046142 U CN 210046142U CN 201920228177 U CN201920228177 U CN 201920228177U CN 210046142 U CN210046142 U CN 210046142U
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- piston rod
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- inner copper
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Abstract
The utility model provides a plasma contact arc ignition cutting gun head, wherein, the air current flows to the ring groove along the vent groove, passes through the vent hole to flow to the cavity of the outer nozzle, the gas entering the cavity of the outer nozzle generates vortex through the small hole of the vortex ring to enter the crack between the electrode nozzle and the electrode, and the thrust generated along with the continuous increase of the air pressure can ensure that the electrode and the conical surface at the bottom end of the piston rod are better attached; because the near end of the piston rod is provided with the atmosphere communicating hole communicated with the outside, when the electrode moves towards the direction of the piston rod under the action of thrust, the two ends of the electrode can be subjected to different air pressure differences, and the air pressure differences can be more favorable for better fitting of the electrode and the bottom conical surface of the piston rod. The gun head can quickly replace the electrode without a tool, avoid the fracture or the sliding of the joint of the piston rod and the electrode and ensure the high coaxiality of the electrode and the piston rod.
Description
Technical Field
The utility model relates to the field of welding technique, concretely relates to plasma contact striking cutting rifle head.
Background
With the continuous development of the industry, flame cutting is being replaced by laser cutting and plasma cutting. Laser cutting is generally suitable for cutting thin sheets, and therefore plasma cutting has been dominant in the industrial cutting field. The quality (whether the cut surface is smooth and tidy) and the production efficiency are main indexes for evaluating the performance of the cut surface. The main factors influencing the quality of the cutting surface are the coaxiality between the gun head and the electrode, and the main factors influencing the production efficiency are the speed of replacing a quick-wear part and the cutting capacity. In the prior art, an electrode is usually connected with a gun head through threads, a worker needs to disassemble an auxiliary tool, namely a wrench, when replacing the electrode, and the threads of the gun head are easily damaged after replacing accessories for many times.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a plasma contact arc striking cutting gun head, which improves the disassembly efficiency of a quick-wear part of the gun head, and the quick-wear part is provided with an outer nozzle, a vortex ring, an electrode nozzle and an electrode; the coaxiality between the piston rod and the electrode is improved, so that the cutting capacity and the cutting surface quality of the integral cutting gun are improved; avoiding the thread from breaking or slipping.
The technical scheme of the utility model is that: the plasma contact arc striking cutting gun head comprises an inner copper piece and a piston rod;
the inner copper part comprises an upper large-diameter cylindrical structure and a lower small-diameter cylindrical structure, and the bottom of the large-diameter cylindrical structure and the top of the small-diameter cylindrical structure are connected to form a first step surface;
the piston rod is of a hollow rod-shaped structure, the outer diameter of the piston rod is equal to the inner diameter of the small-diameter cylindrical structure, and the piston rod penetrates into the inner copper part from the bottom of the inner copper part, extends to the top of the inner copper part and can move up and down along the axis in the inner copper part;
a first boss protrudes from the bottom end of the piston rod to the outside along the radial direction, a second step surface matched with the first boss is processed on the inner side of the bottom of the inner copper part, and the first boss and the second step surface are matched to limit the piston rod to move upwards continuously along the axial direction;
an annular groove is recessed in the position, higher than the inner wall of the second step surface, of the bottom of the inner copper part, and a plurality of vent holes are formed in the inner copper part wall corresponding to the annular groove; a plurality of vent grooves are processed on the binding surface of the outer wall of the piston rod and the inner wall of the inner copper part from top to bottom, the top ends of the vent grooves extend into the large-diameter cylindrical structure of the inner copper part, and the bottom ends of the vent grooves extend into the annular groove;
the bottom end of the large-diameter cylindrical structure of the inner copper piece is provided with a hole which is connected with an air pipe;
a piston ring is placed in the large-diameter cylindrical structure of the inner copper part, the piston ring is sleeved on the piston rod, the bottom of the piston ring is in contact fit with the surface of the piston rod through a step surface, the top of the piston ring is in contact with the bottom of a spring sleeved on the piston rod, and the top of the spring is fixed through an inner copper part cover of the inner copper part;
the piston rod penetrates through a center hole of the inner copper part cover, and an atmosphere communication hole communicated with the external atmosphere is formed in the cylinder wall of the piston rod, which is in contact with the spring; the top of the piston rod is provided with a threaded connecting hole which is connected with an external electric connecting wire.
The bottom of the piston rod is provided with an installation groove for installing an electrode, and the top of the electrode is inserted into the installation groove; or a hollow second boss axially protrudes from the bottom of the piston rod, a groove matched with the second boss is machined in the top of the electrode, and the groove is sleeved on the second boss;
the insulating sleeve is sleeved outside the small-diameter cylindrical structure, and the bottom of the insulating sleeve is positioned above the vent hole;
the insulating sleeve comprises a metal sleeve, wherein the metal sleeve is sleeved outside the insulating sleeve, and the bottom of the metal sleeve is higher than that of the insulating sleeve; the outer side surface of the metal sleeve is welded with an electric connecting wire.
The electrode nozzle comprises an outer nozzle, wherein the top of the outer nozzle is connected with a metal sleeve, and the bottom of the outer nozzle is contacted with the electrode nozzle;
the electrode nozzle comprises a vortex ring, wherein the vortex ring is arranged between the bottom of an inner copper piece and the top of the electrode nozzle, a plurality of small vent holes are formed in the vortex ring, and the small vent holes are communicated to an inner cavity of the electrode nozzle.
Furthermore, the mounting groove is a tapered groove with the inner diameter gradually increased from top to bottom, the top of the electrode is of a conical surface structure matched with the tapered groove, and the mounting groove and the tapered groove are mounted in a nested mode. Therefore, auxiliary tools such as a spanner are not needed when the quick-wear part is detached, and the quick-wear part is more convenient and fast. Meanwhile, the problem that the use is influenced due to the fault of the threaded connection part of the electrode and the gun head can be avoided. The coaxiality tolerance between the two can be further ensured, so that the quality of the cutting surface of the product is ensured.
The upper matching surface is matched with a conical surface, so that the piston rod can better guide the far end of the electrode after obtaining a machine emission signal, and the cutting capability of the cutting torch can be better ensured. The coaxiality of the piston rod and the electrode is better, the conductivity is good after the contact surface is enlarged, the generated heat is small, and the service life of the electrode of the quick-wear part is greatly prolonged.
Furthermore, the included angle between the conical surface at the top of the electrode and the central axis is 0-90 degrees.
Furthermore, the groove is a tapered groove with the inner diameter gradually reduced from top to bottom, the boss at the bottom of the piston rod is of a conical surface structure matched with the tapered groove, and the piston rod and the tapered groove are installed in a nested mode. The included angle between the conical surface of the conical groove and the central axis is 0-90 degrees.
Furthermore, the vent groove is processed on the outer wall of the piston rod and is of a key groove or spiral groove structure.
Furthermore, the vent groove is processed on the inner wall of the inner copper part and is of a key groove or spiral groove structure.
Furthermore, a sealing ring is embedded on the contact surface of the piston ring and the inner wall of the inner copper piece. The sealing performance is ensured, and air leakage is prevented.
Furthermore, a sealing ring is embedded on the contact surface of the outer wall of the inner copper part and the insulating sleeve. The sealing performance is ensured, and air leakage is prevented.
Furthermore, a sealing ring is embedded on the contact surface of the insulating sleeve and the metal sleeve. The sealing performance is ensured, and air leakage is prevented.
Furthermore, a sealing ring is embedded on the contact surface of the metal sleeve and the outer nozzle. The sealing performance is ensured, and air leakage is prevented.
The utility model has the advantages that: the plasma contact arc striking cutting gun head has the advantages that the electrode can be replaced quickly without tools, the phenomenon that the joint of the piston rod and the electrode is broken or slides is avoided, and the high coaxiality of the electrode and the piston rod can be guaranteed. The air flow flows into the inner cavity of the large-diameter cylindrical structure of the inner copper piece through the air pipe: part of the airflow flows to the piston ring to push the piston ring to compress the spring, and the piston ring moves and drives the piston rod to move; the other part of the gas flows to the annular groove along the vent groove, passes through the vent hole and flows to the cavity of the outer nozzle, the gas entering the cavity of the outer nozzle generates vortex through the small hole of the vortex ring and enters a crack between the electrode nozzle and the electrode, and the electrode can be better attached to the conical surface at the bottom end of the piston rod along with the thrust generated by the continuous increase of the gas pressure; because the near end of the piston rod is provided with an atmosphere communication hole which is communicated with the outside. When the electrode moves towards the piston ring direction under the action of thrust, the two ends of the electrode can be subjected to different air pressure differences, and the air pressure differences can be more favorable for better fitting of the electrode and the bottom conical surface of the piston rod. When the electrode moves, the gas around the electrode is instantaneously ionized when the circuit is switched to the open circuit state, and the electric arc is ignited.
The piston rod is of a hollow structure, so that the mass of the piston rod can be reduced. When the gas pushes the electrode toward the proximal end of the lance tip, the resistance to the pushing force is reduced, which facilitates the movement of the electrode toward the proximal end of the lance tip.
The spring is arranged, when airflow just flows into the inner cavity of the gun head, a part of airflow goes upwards, and the air can generate thrust to the piston rod of the air flow to move towards the near end of the gun head after overcoming the pressure of the spring. When the air passage is disconnected, the piston rod which moves upwards can be restored to the original position by the aid of the spring.
Drawings
FIG. 1 is an assembled cross-sectional view of a plasma contact arc striking cutting torch head according to the present invention;
FIG. 2 shows that the piston rod of the plasma contact arc cutting torch head of the present invention employs a spiral air groove;
FIG. 3 shows that the piston rod of the plasma contact arc cutting torch head of the present invention employs a keyway type gas groove;
FIG. 4 shows that the inner copper part of the plasma contact arc cutting torch head of the present invention adopts a spiral gas groove;
FIG. 5 shows that the inner copper part of the plasma contact arc cutting torch head of the present invention adopts a keyway type gas groove;
FIG. 6 shows the fitting conical surfaces of the piston rod and the electrode in the plasma contact arc cutting torch head of the present invention;
fig. 7 is a schematic structural diagram of the projection of the bottom of the piston rod and the groove at the top of the electrode in the plasma contact arc-striking cutting torch head of the present invention.
In the figure: the piston ring is characterized in that 1 is a spring, 2 is a piston ring, 3 is a sealing ring, 4 is an inner copper part, 5 is a piston rod, 6 is an outer nozzle, 7 is an eddy current ring, 8 is an electrode nozzle, 9 is an electrode, 10 is an inner copper part cover, 11 is a first step surface, 12 is a first step surface, 13 is a second step surface, 14 is a first boss, 15 is an annular groove, 16 is an air vent, 17 is an air vent groove, 18 is an atmosphere communication hole, 19 is an insulating sleeve, 20 is a metal sleeve, 21 is an installation groove, 22 is an air vent small hole, and 23 is a second boss.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
Example 1:
as shown in fig. 1, the plasma contact arc ignition cutting torch head comprises an inner copper member 4 and a piston rod 5.
The inner copper part 4 comprises an upper large-diameter cylindrical structure and a lower small-diameter cylindrical structure, and the bottom of the large-diameter cylindrical structure and the top of the small-diameter cylindrical structure are connected to form a first step surface 12 integrally.
The piston rod 5 is a hollow rod-shaped structure, the diameter of the piston rod 5 is equal to the inner diameter of the small-diameter tubular structure, the piston rod 5 penetrates into the inner copper part 4 from the bottom of the inner copper part 4 and extends to the top of the inner copper part 4, and the piston rod can move up and down along the axis in the inner copper part 4.
The bottom end of the piston rod 5 protrudes outwards along the radial direction, a first boss 14 protrudes outwards, a second step surface 13 matched with the first boss 14 is machined on the inner side of the bottom of the inner copper part 4, and the first boss 14 and the second step surface 13 are matched to limit the piston rod 5 to move upwards continuously along the axial direction.
An annular groove 15 is recessed at the position, higher than the inner wall of the cylinder of the second step surface, of the bottom of the inner copper part 4, and a plurality of vent holes 16 are formed in the cylinder wall of the inner copper part 4 corresponding to the annular groove 15. A plurality of vent grooves 17 are processed on the binding surface of the outer wall of the piston rod 5 and the inner wall of the inner copper part 4 from top to bottom, the top ends of the vent grooves 17 extend into the large-diameter tubular structure of the inner copper part 4, and the bottom ends of the vent grooves extend into the annular groove 15.
The bottom end of the large-diameter cylindrical structure of the inner copper part 4 is provided with a hole and is connected with an air pipe 11.
The piston ring 2 is placed in the large-diameter tubular structure of the inner copper part 4, the piston ring 2 is sleeved on the piston rod 5, the bottom of the piston ring 2 is in contact fit with the surface of the piston rod 5 through a step surface, the top of the piston ring 2 is in contact with the bottom of the spring 1 sleeved on the piston rod 5, and the top of the spring 1 is fixed through the inner copper part cover 10 of the inner copper part 4. And a sealing ring 3 is embedded on the contact surface of the piston ring 2 and the inner wall of the inner copper piece 4. The sealing performance is ensured, and air leakage is prevented.
The piston rod 5 penetrates through a central hole of the inner copper part cover 10, and an atmosphere communication hole 18 communicated with the external atmosphere is formed in the cylinder wall of the piston rod 5 contacted with the spring 1. The top of the piston rod is provided with a threaded connecting hole which is connected with an external electric connecting wire.
The bottom of the piston rod 5 is provided with an installation groove 21 for installing the electrode, and the top of the electrode 9 is inserted into the installation groove 21.
The plasma contact arc striking cutting gun head further comprises an insulating sleeve 19, the insulating sleeve 19 is sleeved on the outer side of the small-diameter cylindrical structure, and the bottom of the insulating sleeve 19 is located above the vent hole 16. The insulating sleeve comprises a metal sleeve 20, wherein the metal sleeve 20 is sleeved outside the insulating sleeve 19, and the bottom of the metal sleeve 20 is higher than that of the insulating sleeve 19. The outer side surface of the metal sleeve is welded with an electric connecting wire. Comprises an outer nozzle 6, the top of the outer nozzle 6 is connected with a metal sleeve 20, and the bottom of the outer nozzle 6 is contacted with an electrode nozzle 8. The electrode nozzle comprises a vortex ring 7, wherein the vortex ring 7 is arranged between the bottom of an inner copper part 4 and the top of an electrode nozzle 8, a plurality of small vent holes 22 are formed in the vortex ring 7, and the small vent holes 22 are communicated with an inner cavity of the electrode nozzle 8. And a sealing ring is embedded on the contact surface of the outer wall of the inner copper part 4 and the insulating sleeve 19. And a sealing ring is embedded on the contact surface of the insulating sleeve 19 and the metal sleeve 20. And a sealing ring is embedded on the contact surface of the metal sleeve 20 and the outer nozzle 6. The sealing performance is ensured, and air leakage is prevented.
As shown in fig. 6, the mounting groove 21 is a tapered groove with an inner diameter gradually increasing from top to bottom, and the top of the electrode 9 is a tapered structure matched with the tapered groove, and the two are nested. Preferably, the angle between the conical surface of the top of the electrode 9 and the central axis is 7.5 degrees. Therefore, auxiliary tools such as a spanner are not needed when the quick-wear part is detached, and the quick-wear part is more convenient and fast. Meanwhile, the problem that the use is influenced due to the fault of the threaded connection part of the electrode and the gun head can be avoided. The coaxiality tolerance between the two can be further ensured, so that the quality of the cutting surface of the product is ensured.
The upper matching surface is matched with a conical surface, so that the piston rod can better guide the far end of the electrode after obtaining a machine emission signal, and the cutting capability of the cutting torch can be better ensured. The coaxiality of the piston rod and the electrode is better, the conductivity is good after the contact surface is enlarged, the generated heat is small, and the service life of the electrode of the quick-wear part is greatly prolonged.
Preferably, as shown in fig. 2 and 3, the vent groove 17 is formed on the outer wall of the piston rod 5 and has a key groove or spiral groove structure.
Preferably, as shown in fig. 4 and 5, the vent grooves 17 are machined on the inner wall of the inner copper member 4 and have a key groove or spiral groove structure.
The plasma contact arc striking cutting gun head can be used for quickly replacing the electrode without tools, avoids breakage or sliding at the joint of the piston rod and the electrode and can ensure high coaxiality of the electrode and the piston rod. The air flow flows into the inner cavity of the large-diameter cylindrical structure of the inner copper piece through the air pipe: part of the airflow flows to the piston ring to push the piston ring to compress the spring, and the piston ring moves and drives the piston rod to move; the other part of the gas flows to the annular groove along the vent groove, passes through the vent hole and flows to the cavity of the outer nozzle, the gas entering the cavity of the outer nozzle generates vortex through the small hole of the vortex ring and enters a crack between the electrode nozzle and the electrode, and the electrode can be better attached to the conical surface at the bottom end of the piston rod along with the thrust generated by the continuous increase of the gas pressure; because the near end of the piston rod is provided with an atmosphere communication hole which is communicated with the outside. When the electrode moves towards the piston ring direction under the action of thrust, the two ends of the electrode can be subjected to different air pressure differences, and the air pressure differences can be more favorable for better fitting of the electrode and the bottom conical surface of the piston rod. When the electrode moves, the gas around the electrode is instantaneously ionized when the circuit is switched to the open circuit state, and the electric arc is ignited.
Example 2:
otherwise, the embodiment 1 is the same as embodiment 1, and is different from embodiment 1 in that, as shown in fig. 7, a hollow second boss 23 protrudes from the bottom of the piston rod 5 in the axial direction, a groove matched with the second boss 23 is processed at the top of the electrode 9, and the groove is sleeved on the second boss; the groove is a tapered groove with the inner diameter gradually reduced from top to bottom, the second boss at the bottom of the piston rod 5 is of a conical surface structure matched with the tapered groove, and the two are installed in a nested mode. Preferably, the included angle between the conical surface of the conical groove and the central axis is 7.5 degrees. Therefore, auxiliary tools such as a spanner are not needed when the quick-wear part is detached, and the quick-wear part is more convenient and fast. Meanwhile, the problem that the use is influenced due to the fault of the threaded connection part of the electrode and the gun head can be avoided. The coaxiality tolerance between the two can be further ensured, so that the quality of the cutting surface of the product is ensured.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (9)
1. Plasma contact arc striking cutting rifle head, its characterized in that: comprises an inner copper piece (4) and a piston rod (5);
the inner copper part (4) comprises an upper large-diameter cylindrical structure and a lower small-diameter cylindrical structure, and the bottom of the large-diameter cylindrical structure and the top of the small-diameter cylindrical structure are connected to form a first step surface (12) integrally;
the piston rod (5) is of a hollow rod-shaped structure, the outer diameter of the piston rod (5) is equal to the inner diameter of the small-diameter cylindrical structure, and the piston rod (5) penetrates into the inner copper piece (4) from the bottom of the inner copper piece (4), extends to the top of the inner copper piece (4), and can move up and down along the axis in the inner copper piece (4);
the bottom end of the piston rod (5) protrudes outwards along the radial direction, a first boss (14) protrudes outwards, a second step surface (13) matched with the first boss (14) is machined on the inner side of the bottom of the inner copper part (4), and the first boss (14) is matched with the second step surface (13) to limit the piston rod (5) to move upwards continuously along the axial direction;
an annular groove (15) is recessed at the position, higher than the inner wall of the second step surface, of the bottom of the inner copper part (4), and a plurality of vent holes (16) are formed in the wall, corresponding to the annular groove (15), of the inner copper part (4); a plurality of vent grooves (17) are formed in the binding surface of the outer wall of the piston rod (5) and the inner wall of the inner copper part (4) from top to bottom, the top ends of the vent grooves (17) extend into the large-diameter cylindrical structure of the inner copper part (4), and the bottom ends of the vent grooves extend into the annular groove (15);
the bottom end of the large-diameter cylindrical structure of the inner copper piece (4) is provided with a hole and is connected with an air pipe (11);
a piston ring (2) is placed in the large-diameter cylindrical structure of the inner copper part (4), the piston ring (2) is sleeved on the piston rod (5), the bottom of the piston ring (2) is in contact fit with the surface of the piston rod (5) through a step surface, the top of the piston ring (2) is in contact with the bottom of a spring (1) sleeved on the piston rod (5), and the top of the spring (1) is fixed through an inner copper part cover (10) of the inner copper part (4);
the piston rod (5) penetrates through a center hole of the inner copper part cover (10), and an atmosphere communication hole (18) communicated with the external atmosphere is formed in the cylinder wall of the piston rod (5) contacted with the spring (1);
the bottom of the piston rod (5) is provided with an installation groove (21) for installing an electrode, and the top of the electrode (9) is inserted into the installation groove (21); or a hollow second boss (23) axially protrudes from the bottom of the piston rod (5), a groove matched with the second boss (23) is machined in the top of the electrode (9), and the groove is sleeved on the second boss;
the insulating sleeve (19) is sleeved outside the small-diameter cylindrical structure, and the bottom of the insulating sleeve (19) is positioned above the vent hole (16);
the insulating sleeve comprises a metal sleeve (20), wherein the metal sleeve (20) is sleeved outside the insulating sleeve (19), and the bottom of the metal sleeve (20) is higher than that of the insulating sleeve (19);
the electrode spray nozzle comprises an outer spray nozzle (6), wherein the top of the outer spray nozzle (6) is connected with a metal sleeve (20), and the bottom of the outer spray nozzle (6) is contacted with an electrode spray nozzle (8);
the electrode nozzle comprises a vortex ring (7), wherein the vortex ring (7) is arranged between the bottom of an inner copper piece (4) and the top of an electrode nozzle (8), a plurality of small vent holes (22) are formed in the vortex ring (7), and the small vent holes (22) are communicated to an inner cavity of the electrode nozzle (8).
2. The plasma contact arc initiation cutting torch head of claim 1, wherein: the mounting groove (21) is a tapered groove with the inner diameter gradually increasing from top to bottom, the top of the electrode (9) is of a conical surface structure matched with the tapered groove, and the mounting groove and the tapered groove are mounted in a nested mode.
3. The plasma contact arc initiation cutting torch head of claim 2, wherein: the included angle between the conical surface at the top of the electrode (9) and the central axis is 0-90 degrees.
4. The plasma contact arc initiation cutting torch head of claim 1, wherein: the groove is a conical groove with the inner diameter gradually reduced from top to bottom, the boss at the bottom of the piston rod (5) is of a conical surface structure matched with the conical groove, and the piston rod and the conical groove are installed in a nested mode.
5. The plasma contact arc initiation cutting torch head of claim 4, wherein: the included angle between the conical surface of the conical groove and the central axis is 0-90 degrees.
6. The plasma contact arc initiation cutting torch head of claim 1, wherein: the vent groove (17) is processed on the outer wall of the piston rod (5) and is of a key groove or spiral groove structure.
7. The plasma contact arc initiation cutting torch head of claim 1, wherein: the vent groove (17) is processed on the inner wall of the inner copper part (4) and is of a key groove or spiral groove structure.
8. The plasma contact arc initiation cutting torch head of claim 1, wherein: and a sealing ring (3) is embedded on the contact surface of the piston ring (2) and the inner wall of the inner copper piece (4).
9. The plasma contact arc initiation cutting torch head of claim 1, wherein: a sealing ring is embedded on the contact surface of the outer wall of the inner copper part (4) and the insulating sleeve (19), a sealing ring is embedded on the contact surface of the insulating sleeve (19) and the metal sleeve (20), and a sealing ring is embedded on the contact surface of the metal sleeve (20) and the outer nozzle (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920228177.5U CN210046142U (en) | 2019-02-22 | 2019-02-22 | Plasma contact arc striking cutting gun head |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920228177.5U CN210046142U (en) | 2019-02-22 | 2019-02-22 | Plasma contact arc striking cutting gun head |
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| CN210046142U true CN210046142U (en) | 2020-02-11 |
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| CN201920228177.5U Active CN210046142U (en) | 2019-02-22 | 2019-02-22 | Plasma contact arc striking cutting gun head |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109773314A (en) * | 2019-02-22 | 2019-05-21 | 上海亿诺焊接科技股份有限公司 | Plasma contacting ignition arc cuts pipette tips |
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2019
- 2019-02-22 CN CN201920228177.5U patent/CN210046142U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109773314A (en) * | 2019-02-22 | 2019-05-21 | 上海亿诺焊接科技股份有限公司 | Plasma contacting ignition arc cuts pipette tips |
| CN109773314B (en) * | 2019-02-22 | 2023-10-31 | 上海亿诺焊接科技股份有限公司 | Plasma contact arc striking cutting gun head |
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