Magnetic arc stabilizer and working method thereof

Abstract

The present application provides a magnetic controlled arc stabilizer and a working method thereof. The magnetic controlled arc stabilizer generates a magnetic field through an excitation device, and guides the magnetic field to a first magnetic shoe and a second magnetic shoe through a first magnetic circuit and a second magnetic circuit. The arc is controlled by the first magnetic shoe and the second magnetic shoe, and the direction, position and shape of the welding arc can be changed. By adjusting the magnetic field strength, the position and shape of the welding arc can be adjusted to achieve the purpose of controlling and stabilizing the arc. The excitation device and the welding arc control magnetic shoe are separated into a structure. The magnetic field can be introduced into the welding gun position by using ordinary welding equipment and a welding gun without changing the original welding method. The operation is very convenient and simple, and it is also very easy to observe the welding arc. Compared with the same material and the same welding speed, after adding the magnetic controlled arc stabilizer, the welding speed is increased by 30%-50, the energy saving and efficiency improvement are very obvious, the surface defect rate of the weld is reduced by 70%, the heat affected zone of the weld is reduced by 30%-50, and the strength of the weld and the quality related to grain refinement are significantly improved.

Description

Technical Field

[0001] The present application relates to the field of welding processing technology, and in particular to a magnetic controlled arc stabilizer and a working method thereof. Background Art

[0002] In stainless steel argon arc continuous welded pipes, increasing the welding current is usually used to increase the welding speed. However, when the welding current is increased to a certain level, a bottleneck will occur and the weld quality will be affected. For example, the weld surface will be rough and have undercuts. The strength of the weld will also be reduced due to the coarse grains in the middle of the weld. If other welding methods are used, such as laser welding, the equipment investment cost is too high. Plasma welding is not suitable for thin materials. Double-gun welding operation is not convenient. Therefore, there is an urgent need to improve the existing technology. Summary of the Invention

[0003] In order to solve the above technical problems, the present application provides a magnetic controlled arc stabilizer.

[0004] Another object of the present application is to provide a working method of a magnetic controlled arc stabilizer.

[0005] The present application adopts the following technical solution: a magnetically controlled arc stabilizer, including a power supply and an excitation device connected to the power supply and used to generate a magnetic field after power is supplied, the excitation device is connected to a first magnetic circuit and a second magnetic circuit which are arranged at intervals and used to draw out the magnetic field, a first magnetic shoe is provided on the first magnetic circuit, and a second magnetic shoe is provided on the second magnetic circuit which is arranged opposite to the first magnetic shoe.

[0006] As described above, the first magnetic shoe has a first magnetic end on the lower side thereof extending obliquely toward the second magnetic shoe, and the second magnetic shoe has a second magnetic end on the lower side thereof extending obliquely toward the first magnetic shoe, and the first magnetic end and the second magnetic end are spaced apart.

[0007] As described above, the first magnetic end end is provided with a first longitudinal surface arranged in the longitudinal direction near the second magnetic end side, and the second magnetic end end is provided with a second longitudinal surface arranged in the longitudinal direction and opposite to the first longitudinal surface near the first magnetic end side.

[0008] In the magnetically controlled arc stabilizer as described above, the excitation device includes a magnetic core rod and an excitation coil wound around the magnetic core rod.

[0009] In the magnetically controlled arc stabilizer as described above, the first magnetic circuit and the second magnetic circuit are arranged in parallel and extend in the same direction.

[0010] The magnetically controlled arc stabilizer as described above, wherein a first adjustment mechanism for adjusting the position of the first magnetic shoe relative to the first magnetic circuit is provided between the first magnetic shoe and the first magnetic circuit;

[0011] A second adjustment mechanism for adjusting the position of the second magnetic shoe relative to the second magnetic circuit is provided between the second magnetic shoe and the second magnetic circuit.

[0012] The magnetic arc stabilizer as described above, wherein the first adjustment mechanism includes a first guide slot longitudinally formed on the first magnetic shoe, and a locking member passes through the first guide slot to lock the first magnetic shoe on the first magnetic circuit;

[0013] The second adjustment mechanism includes a second guide slot longitudinally opened on the second magnetic shoe, and a locking member passes through the second guide slot to lock the second magnetic shoe on the second magnetic circuit.

[0014] The magnetically controlled arc stabilizer as described above further includes a water cooling system for cooling the excitation device.

[0015] In the magnetically controlled arc stabilizer as described above, the power supply is provided with a magnetic field regulating device for regulating the magnitude of the current supplied to the excitation device.

[0016] A working method of a magnetic controlled arc stabilizer is disclosed. The magnetic controlled arc stabilizer is installed on a stainless steel argon arc welding pipe device, the first magnetic shoe and the second magnetic shoe are arranged on both sides of the end of the welding needle, the power is turned on, and welding is started after the arc is stabilized in the magnetic field.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] The magnetic controlled arc stabilizer of the present application generates a magnetic field through an excitation device, and guides the magnetic field to the first magnetic shoe and the second magnetic shoe through the first magnetic circuit and the second magnetic circuit. The arc is controlled by the first magnetic shoe and the second magnetic shoe, and the direction, position and shape of the welding arc can be changed. The size of the position and shape of the welding arc can be adjusted by adjusting the magnetic field strength, so as to achieve the purpose of controlling and stabilizing the arc. The excitation device and the welding arc control magnetic shoe are separated into a structure, and the magnetic field can be introduced into the welding gun position by using ordinary welding equipment and welding gun without changing the original welding method. The operation is very convenient and simple, and it is also very easy to observe the welding arc. Compared with the same material and the same welding speed, after adding the magnetic controlled arc stabilizer for welding, the welding speed is increased by 30%-50, the energy saving and efficiency improvement are very obvious, the surface defect rate of the weld is reduced by 70%, the heat affected zone of the weld is reduced by 30%-50, and the strength of the weld and the quality related to grain refinement are significantly improved.

[0019] A method for operating a magnetic arc stabilizer involves installing the magnetic arc stabilizer on stainless steel argon arc welding equipment, positioning a first magnetic shoe and a second magnetic shoe on either side of the end of the welding needle. The power is turned on, and welding begins after the arc stabilizes in the magnetic field. This design is suitable for simple modification of existing welding equipment, significantly improving welding efficiency and quality without changing existing welding methods or operating habits. Adding a magnetic field to control the arc in traditional stainless steel argon arc welding equipment can alter the direction, position, and shape of the welding arc. Adjusting the magnetic field strength adjusts the position and shape of the welding arc, achieving arc control and stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for describing the embodiments.

[0021] Figure 1 It is a three-dimensional schematic diagram of the magnetic controlled arc stabilizer of the present application.

[0022] Figure 2 It is a top view of the magnetic controlled arc stabilizer of the present application.

[0023] Figure 3 It is a left view of the magnetic controlled arc stabilizer of the present application.

[0024] Figure 4 It is a rear view of the magnetic controlled arc stabilizer of the present application.

[0025] Figure 5 This is a schematic diagram of the arc state when welding without a magnetic arc stabilizer.

[0026] Figure 6 This is a schematic diagram of the arc state when welding with a magnetic arc stabilizer.

[0027] Figure 7 This is a schematic diagram of the cross-section of the magnetic arc stabilizer during welding.

[0028] Figure 8 This is a cross-sectional working diagram of the magnetic controlled arc stabilizer of the present application during welding from a top-down perspective. DETAILED DESCRIPTION

[0029] like Figure 1-8 As shown, the magnetically controlled arc stabilizer includes a power supply 1 and an excitation device 2 connected to the power supply 1 and used to generate a magnetic field after power is applied. The excitation device 2 is connected to a first magnetic circuit 31 and a second magnetic circuit 32 which are arranged at intervals and used to draw out the magnetic field. The first magnetic circuit 31 is provided with a first magnetic shoe 41, and the second magnetic circuit 32 is provided with a second magnetic shoe 42 which is arranged opposite to the first magnetic shoe 41.

[0030] The magnetic controlled arc stabilizer of the present application generates a magnetic field through an excitation device, and guides the magnetic field to the first magnetic shoe and the second magnetic shoe through the first magnetic circuit and the second magnetic circuit. The arc is controlled by the first magnetic shoe and the second magnetic shoe, and the direction, position and shape of the welding arc can be changed. The size of the position and shape of the welding arc can be adjusted by adjusting the magnetic field strength, so as to achieve the purpose of controlling and stabilizing the arc. The excitation device and the welding arc control magnetic shoe are separated into a structure, and the magnetic field can be introduced into the welding gun position by using ordinary welding equipment and welding gun without changing the original welding method. The operation is very convenient and simple, and it is also very easy to observe the welding arc. Compared with the same material and the same welding speed, after adding the magnetic controlled arc stabilizer for welding, the welding speed is increased by 30%-50, the energy saving and efficiency improvement are very obvious, the surface defect rate of the weld is reduced by 70%, the heat affected zone of the weld is reduced by 30%-50, and the strength of the weld and the quality related to grain refinement are significantly improved.

[0031] In the magnetically controlled arc stabilizer described above, a first magnetic end 411 is provided on the underside of the first magnetic shoe 41, extending obliquely toward the second magnetic shoe 42. A second magnetic end 421 is provided on the underside of the second magnetic shoe 42, extending obliquely toward the first magnetic shoe 41. The first magnetic end 411 and the second magnetic end 421 are spaced apart. By providing the first magnetic end 411 and the second magnetic end 421, when in use, the first magnetic end 411 and the second magnetic end 421 are positioned on either side of the end of the welding needle to control the arc, thereby changing the direction, position, and shape of the welding arc. Adjusting the magnetic field strength can adjust the position and shape of the welding arc, thereby achieving arc control and stabilization.

[0032] As described above, the first magnetic end 411 has a first longitudinal surface 410 disposed longitudinally near the second magnetic end 421, and the second magnetic end 421 has a second longitudinal surface 420 disposed longitudinally and opposite to the first longitudinal surface 410. Figure 4 and Figure 7 As shown, this design can make the magnetic field in a horizontal direction, which is conducive to stabilizing the magnetic field and adjusting the position and shape of the welding arc to achieve the purpose of controlling and stabilizing the arc.

[0033] In the magnetically controlled arc stabilizer as described above, the excitation device 2 includes a magnetic core rod 21 and an excitation coil 22 wound around the magnetic core rod 21 .

[0034] In the magnetic arc stabilizer described above, the first magnetic circuit 31 and the second magnetic circuit 32 are arranged in parallel and extend in the same direction. This design is suitable for simple modification of existing welding equipment and can significantly improve welding efficiency and quality without changing the original welding method or operating habits.

[0035] As described above, in the magnetically controlled arc stabilizer, a first adjustment mechanism for adjusting the position of the first magnetic shoe 41 relative to the first magnetic circuit 31 is provided between the first magnetic shoe 41 and the first magnetic circuit 31; by setting the first adjustment mechanism, the height of the first magnetic shoe relative to the first magnetic circuit can be adjusted to fine-tune the use environment and adapt to different products and applications.

[0036] A second adjustment mechanism is provided between the second magnetic shoe 42 and the second magnetic circuit 32 for adjusting the position of the second magnetic shoe 42 relative to the second magnetic circuit 32. The second adjustment mechanism can be used to adjust the height of the second magnetic shoe relative to the second magnetic circuit to fine-tune the operating environment and adapt to different products and applications.

[0037] As described above, the first adjustment mechanism of the magnetically controlled arc stabilizer includes a first guide groove 412 longitudinally opened on the first magnetic shoe 41, and a locking member passes through the first guide groove 412 to lock the first magnetic shoe 41 on the first magnetic circuit 31; when in use, the first magnetic shoe is locked on the first magnetic circuit by the locking member, and since the first guide groove is longitudinally arranged, the use height of the first magnetic shoe can be adjusted.

[0038] The second adjustment mechanism includes a second guide slot 422 longitudinally defined on the second magnetic shoe 42. A locking member passes through the second guide slot 422 to lock the second magnetic shoe 42 to the second magnetic circuit 32. During use, the locking member locks the second magnetic shoe to the second magnetic circuit. Due to the longitudinally defined second guide slot, the height of the second magnetic shoe can be adjusted.

[0039] The magnetic arc stabilizer as described above further includes a water cooling system 5 for cooling the excitation device 2. The cooling system is used to cool the magnetic arc stabilizer to avoid damage caused by excessive temperature and affect the use effect.

[0040] In the magnetically controlled arc stabilizer described above, the power supply 1 is equipped with a magnetic field regulating device for adjusting the current supplied to the excitation device 2. When DC power is supplied to the excitation device, the magnetic field generated by the excitation coil is concentrated at both ends of the magnetic shoe. This magnetic field interacts with the magnetic field generated by the arc of the welding needle, causing the arc to oscillate. Changing the current in the excitation coil changes the arc's amplitude, while changing the direction of the current flowing through the coil changes the arc's oscillation direction.

[0041] A working method of a magnetically controlled arc stabilizer is disclosed, wherein the magnetically controlled arc stabilizer is installed on a stainless steel argon arc welding pipe device, and the first magnetic shoe 41 and the second magnetic shoe 42 are arranged on both sides of the end of the welding needle. The power supply 1 is turned on, and welding is started after the arc is stabilized in the magnetic field. This design is more suitable for simple modification of the original welding equipment, and can greatly improve the welding efficiency and improve the welding quality without changing the original welding method and operating habits. Adding a magnetic field to control the arc in traditional stainless steel argon arc welding pipe equipment can change the direction, position and shape of the welding arc. Adjusting the magnetic field strength can adjust the size of the position and shape of the welding arc, thereby achieving the purpose of controlling and stabilizing the arc. Figure 5 This is the welding arc effect diagram without magnetron. Figure 6 This is the effect diagram of the welding arc with the addition of a magnetron. According to the actual test results, when compared with the same material and the same welding speed, the welding speed is increased by 30%-50% after adding the magnetron arc stabilizer, and the energy saving and efficiency improvement are very obvious. The surface defect rate of the weld is reduced by 70%, and the heat-affected zone of the weld is reduced by 30%-50%. The strength of the weld and the quality related to grain refinement are significantly improved.

[0042] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. Magnetic arc stabilizer, characterized by: The invention comprises a power supply (1) and an excitation device (2) connected to the power supply (1) and used for generating a magnetic field after being energized, wherein the excitation device (2) is connected to a first magnetic circuit (31) and a second magnetic circuit (32) which are arranged at intervals and used for leading out a magnetic field, wherein the first magnetic circuit (31) and the second magnetic circuit (32) are arranged in parallel and extend in the same direction, wherein the first magnetic circuit (31) is provided with a first magnetic shoe (41), and the second magnetic circuit (32) is provided with a second magnetic shoe (42) which is arranged opposite to the first magnetic shoe (41); A first adjustment mechanism for adjusting the position of the first magnetic shoe (41) relative to the first magnetic circuit (31) is provided between the first magnetic shoe (41) and the first magnetic circuit (31), the first adjustment mechanism comprising a first guide slot (412) longitudinally provided on the first magnetic shoe (41), and a locking member passing through the first guide slot (412) to lock the first magnetic shoe (41) on the first magnetic circuit (31); A second adjusting mechanism for adjusting the position of the second magnetic shoe (42) relative to the second magnetic circuit (32) is provided between the second magnetic shoe (42) and the second magnetic circuit (32), and the second adjusting mechanism includes a second guide groove (422) longitudinally opened on the second magnetic shoe (42), and a locking member passes through the second guide groove (422) to lock the second magnetic shoe (42) on the second magnetic circuit (32).

2. The magnetic controlled arc stabilizer according to claim 1, characterized in that: A first magnetic end (411) is provided on the lower side of the first magnetic shoe (41) and extends obliquely toward the second magnetic shoe (42); a second magnetic end (421) is provided on the lower side of the second magnetic shoe (42) and extends obliquely toward the first magnetic shoe (41); the first magnetic end (411) and the second magnetic end (421) are spaced apart.

3. The magnetic controlled arc stabilizer according to claim 2, characterized in that: A first longitudinal surface (410) is provided at the end of the first magnetic end (411) near the side of the second magnetic end (421) and arranged in the longitudinal direction, and a second longitudinal surface (420) is provided at the end of the second magnetic end (421) near the side of the first magnetic end (411) and arranged in the longitudinal direction and opposite to the first longitudinal surface (410).

4. The magnetic controlled arc stabilizer according to claim 1, characterized in that: The excitation device (2) comprises a magnetic core rod (21) and an excitation coil (22) wound around the magnetic core rod (21).

5. The magnetic controlled arc stabilizer according to claim 1, characterized in that: The magnetically controlled arc stabilizer further comprises a water cooling system (5) for cooling the excitation device (2).

6. The magnetic controlled arc stabilizer according to claim 1, characterized in that: The power supply (1) is provided with a magnetic field regulating device for regulating the magnitude of the current supplied to the excitation device (2).

7. A method for operating a magnetically controlled arc stabilizer according to any one of claims 1 to 6, characterized in that: The magnetic arc stabilizer is installed on the stainless steel argon arc welding pipe equipment, so that the first magnetic shoe (41) and the second magnetic shoe (42) are arranged on both sides of the end of the welding needle, the power supply (1) is turned on, and welding is started after the arc is stabilized in the magnetic field.

Images