Magnesium alloy welding wire strengthening device and method
The rare earth coating is coated on the surface of the magnesium alloy wire through electrostatic adsorption and surface spraying technology, which solves the problem that rare earth coatings are difficult to apply on round rod structures in the prior art, and improves the strength and connection performance of the welding wire.
Patent Information
- Application Number
- CN202510740599.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-05
- Publication Date
- 2025-07-04
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The prior art is difficult to prepare rare earth coatings on the surface of magnesium alloy welding wire with round rod-shaped structures, resulting in poor wire reinforcement effect and unable to meet the connection strength requirements of high-speed aircraft.
The electrostatic adsorption and surface spraying method are used to spray positively charged rare earth powder onto the surface of negatively charged magnesium alloy welding wire, and the rare earth coating is coated through the electrostatic adsorption box and the rare earth coating strengthening system. The welding wire indentation manufacturing system and the rolling roller ensure uniformity and close bonding of the coating.
The rare earthing of the surface of magnesium alloy welding wire is realized, the strength and connection performance of the welding wire are improved, the problems of difficulty in adhesion and easy agglomeration of rare earth particles are solved, and the uniformity and stability of the surface coating of the welding wire are ensured.
Smart Images
Figure CN120243785A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of magnesium alloy wire strengthening, and particularly to a magnesium alloy wire strengthening device and method. Background Art
[0002] With the increasing demand for lightweighting of high-precision aerospace equipment such as aircraft by humans, traditional alloy materials are difficult to meet the weight reduction requirements of high-speed aircraft. As one of the lightest metal materials, magnesium alloys have now been widely used in the development of high-speed aircraft. Currently, welding methods are mostly used for connecting large-sized and complex-structured magnesium alloy components. However, the strength of the current wire cannot meet the requirements, and after welding, the welding strength is low. The welding strength of magnesium alloy materials severely limits its application in the development of load-bearing structural components. Therefore, how to achieve the connection strength of magnesium alloy materials and prepare special magnesium alloy wires suitable for laser / laser-arc hybrid welding has become one of the problems faced in promoting the application of magnesium alloy welding technology.
[0003] To solve the above problems, one solution is to add rare earth elements to the wire to achieve wire strengthening. The current magnesium alloy wire formulas and corresponding development methods are restricted by the material system and it is difficult to independently control the actual required rare earth content and corresponding types. The method of preparing a rare earth coating on the surface of the formed wire can solve the problems encountered in the previous method. However, currently, there are only methods for preparing rare earth coatings by atomic layer deposition and / or chemical vapor deposition applicable to planar structures; the coating preparation scheme for planar structures is not applicable to preparing rare earth coatings on the surface of round rod-shaped wires, and thus wire strengthening cannot be achieved; therefore, there is an urgent need to design a rare earth coating strengthening scheme applicable to the wire structure. Summary of the Invention
[0004] The purpose of the present invention is to provide a magnesium alloy wire strengthening device and method to solve the problems existing in the above prior art and be applicable to the rare earth coating strengthening of the wire structure.
[0005] To achieve the above purpose, the present invention provides the following solutions: The present invention provides a magnesium alloy welding wire strengthening device, comprising: an electrostatic adsorption box body, which is internally sealed, and the welding wire to be strengthened can penetrate into the electrostatic adsorption box body through an inlet at one end of the electrostatic adsorption box body and penetrate out from an outlet at the other end of the electrostatic adsorption box body. During the process of the welding wire to be strengthened penetrating into the electrostatic adsorption box body, it can be conducted with negative electricity; a rare earth coating strengthening system, which is communicated with the electrostatic adsorption box body and can spray rare earth powder with positive electricity onto the surface of the welding wire to be strengthened located inside the electrostatic adsorption box body. By setting the electrostatic adsorption box body in the present invention, the welding wire to be strengthened can pass through it, and during the process of the welding wire to be strengthened penetrating into the electrostatic adsorption box body, negative electricity is conducted to the welding wire to be strengthened; a rare earth coating strengthening system communicated with the electrostatic adsorption box body is set to spray rare earth powder with positive electricity onto the surface of the welding wire to be strengthened with negative electricity, and by adopting the methods of electrostatic adsorption and surface spraying, the purpose of coating the surface of the welding wire structure with a rare earth coating is achieved.
[0006] Preferably, the rare earth coating strengthening system includes a rare earth powder tank for containing rare earth powder. The rare earth powder tank is connected with a plurality of particle spraying heads through a rare earth conveying pipeline. The plurality of particle spraying heads are respectively arranged around the inner wall of the electrostatic adsorption box body. The particle spraying heads can attach positive electricity to the rare earth powder and spray the rare earth powder with positive electricity onto the surface of the welding wire to be strengthened located inside the electrostatic adsorption box body.
[0007] Preferably, the rare earth coating strengthening system further includes an electrostatic generator and an electrostatic adder, and the electrostatic generator is electrically connected with the electrostatic adder; the electrostatic adder is located inside the electrostatic adsorption box body, and the electrostatic adder is coaxial with the inlet of the welding wire to be strengthened; the electrostatic adder can conduct negative electricity to the welding wire to be strengthened penetrating into the electrostatic adsorption box body.
[0008] Preferably, it further includes a welding wire indentation manufacturing system, which is arranged on the outer side wall of the electrostatic adsorption box body near the inlet. The welding wire indentation manufacturing system can manufacture indentations on the surface of the welding wire to be strengthened before it penetrates into the electrostatic adsorption box body.
[0009] Preferably, the welding wire indentation manufacturing system includes two servo motors arranged symmetrically up and down. The end of the output shaft of the servo motor is connected with an indentation roller. One end of the welding wire to be strengthened passes through between the two indentation rollers and forms an indentation on the surface, and then enters the electrostatic adsorption box body.
[0010] Preferably, a pressure sensor is arranged on the output shaft of the servo motor, and a displacement sensor is arranged on the indentation roller. The pressure sensor is used to record the pressure value during the indentation manufacturing process, and the displacement sensor is used to record the indentation depth during the indentation manufacturing process; wherein, the pressure value PFilling volume with rare earth powder a The relationship between is calculated by ; In the formula, H is the material hardness, P is the pressure value, b is the indentation length, V is the roller speed; indentation area S By the radius of the roller tip R and indentation length b To express, the specific expression is as follows ; Where R is the radius of the tip of the pressure wheel; the overall indentation area is approximately 2S. Therefore, the value of the rare earth powder filling volume a can be determined by adjusting the pressure value P.
[0011] Preferably, an electrostatic eliminator is provided at one end of the electrostatic adsorption box close to the outlet, and the electrostatic eliminator can remove the electrical properties of the welding wire adsorbed with rare earth powder.
[0012] Preferably, the electrostatic adsorption box includes a electrostatic removal box, which is fixed at the outlet of the electrostatic adsorption box. After the reinforced welding wire is coated with rare earth powder, it passes through one end of the electrostatic removal box located inside the electrostatic adsorption box and passes out through one end of the electrostatic removal box located outside the electrostatic adsorption box; the electrostatic eliminator is arranged at the welding wire insertion position of the electrostatic removal box.
[0013] Preferably, a plurality of rolling rollers are arranged inside the static electricity removal box, and the rolling rollers can roll the surface of the welding wire passing through the static electricity removal box.
[0014] The present invention also provides a magnesium alloy welding wire strengthening method, comprising the following steps: S1, confirm the diameter of the welding wire to be strengthened and the diameter and composition of the rare earth powder particles used as the strengthening coating, confirm the indentation size, spraying speed, the amount of rare earth powder particles attached and the wire feeding speed; S2, after confirming the parameters of step S1, start the wire feeding device to uniformly convey the welding wire to be strengthened into the electrostatic adsorption box, and perform coating strengthening treatment on the welding wire to be strengthened, detect the quality of the welding wire after passing through the electrostatic adsorption box, and confirm whether the surface of the welding wire is evenly coated with rare earth powder coating; S3, judging whether to adjust the parameters of step S1 according to the detection result of step S2, if the parameters need to be adjusted, then modify the parameters of step S1 and then check again, if no adjustment is needed, then directly produce until the welding wire strengthening is completed.
[0015] Compared with the prior art, the present invention has achieved the following technical effects: In the present invention, an electrostatic adsorption box body is provided, through which the wire to be strengthened can pass. During the process of the wire to be strengthened passing through the electrostatic adsorption box body, negative electricity is conducted to the wire to be strengthened. A rare earth coating strengthening system communicated with the electrostatic adsorption box body is provided, and rare earth powder with positive electricity is sprayed onto the surface of the wire to be strengthened with negative electricity. By adopting the methods of electrostatic adsorption and surface spraying, the purpose of coating the surface of the wire structure with a rare earth coating is achieved. In the present invention, opposite polarities of static electricity are respectively added to the rare earth powder and the wire to be strengthened, and spraying is carried out in a closed space environment to ensure that the surface of the wire can be evenly coated with rare earth powder particles, realizing the rare earthization of the wire surface. The present invention adopts the method of electrostatic adsorption to improve the efficiency and stability of the attachment of rare earth particles, and solves the problems such as difficult attachment and easy agglomeration of rare earth particles. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0017] Figure 1 It is a schematic structural diagram of a magnesium alloy wire strengthening device in one or some embodiments of the present invention.
[0018] In the figure: 1 - wire to be strengthened; 2 - electrostatic adsorption box body; 21 - electrostatic removal box body; 3 - rare earth coating strengthening system; 30 - electrostatic adder; 31 - electrostatic generator; 32 - particle spraying head; 33 - rare earth powder; 34 - rare earth conveying pipeline; 35 - rare earth powder tank; 36 - electrostatic remover; 37 - rolling roller; 4 - rare earthized coating strengthened wire; 5 - wire indentation manufacturing system, 51 - pressure sensor; 52 - indentation roller; 53 - displacement sensor; 54 - servo motor. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.
[0020] The purpose of the present invention is to provide a magnesium alloy wire strengthening device and method to solve the problems existing in the above-mentioned prior art, and it is applicable to the rare earth coating strengthening of wire structures.
[0021] To make the above objects, features, and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0022] For a special welding wire for magnesium alloy, that is, a rare earth coating provided on the surface of the magnesium alloy welding wire can achieve a strengthening function. However, currently, there are only methods of atomic layer deposition applicable to planar structures and / or preparing rare earth coatings by chemical vapor deposition. For welding wires in the form of fine flexible rods, it is difficult to use the existing methods for planar structure coatings, and thus it is impossible to strengthen the welding wires. To solve this problem, the present invention provides a magnesium alloy welding wire strengthening device, as Figure 1 shown, which includes an electrostatic adsorption box body 2, the inside of which is sealed, and the welding wire 1 to be strengthened can penetrate through the penetration opening at one end of the electrostatic adsorption box body 2 and pass out from the penetration opening at the other end of the electrostatic adsorption box body 2. During the process of the welding wire 1 to be strengthened penetrating into the electrostatic adsorption box body 2, it can be conducted with negative electricity; the rare earth coating strengthening system 3 is communicated with the electrostatic adsorption box body 2 and can spray the rare earth powder 33 with positive electricity attached onto the surface of the welding wire 1 to be strengthened located inside the electrostatic adsorption box body 2. By setting the electrostatic adsorption box body 2 in the present invention, the welding wire 1 to be strengthened can pass through it, and during the process of the welding wire 1 to be strengthened penetrating into the electrostatic adsorption box body 2, negative electricity is conducted for the welding wire 1 to be strengthened; by setting the rare earth coating strengthening system 3 communicated with the electrostatic adsorption box body 2, the rare earth powder 33 with positive electricity attached is sprayed onto the surface of the welding wire 1 to be strengthened with negative electricity. By adopting the methods of electrostatic adsorption and surface spraying, the purpose of coating the surface of the welding wire structure with a rare earth coating is achieved; in the present invention, opposite polarities of static electricity are respectively added to the rare earth powder 33 and the welding wire to be strengthened, and spraying is carried out in a closed space environment to ensure that the surface of the welding wire can be evenly coated with rare earth powder 33 particles, realizing the rare earthization of the welding wire surface. The present invention adopts the method of electrostatic adsorption to improve the efficiency and stability of the attachment of rare earth particles, and solves the problems of difficult attachment and easy agglomeration of rare earth particles.
[0023] In one embodiment, the rare earth coating strengthening system 3 includes a rare earth powder tank 35 for containing rare earth powder 33 therein. The applicable range of the particle diameter of the rare earth powder 33 is between 20 μm and 20000 μm, and the applicable range of rare earth elements includes Ce, Y, etc. Ce is cerium and Y is yttrium. The rare earth powder tank 35 is connected with a plurality of particle spray heads 32 through a rare earth delivery pipeline 34. The plurality of particle spray heads 32 are respectively arranged around the inner wall of the electrostatic adsorption box. The particle spray heads 32 can make the rare earth powder 33 carry a positive charge and spray the rare earth powder 33 with the positive charge onto the surface of the wire to be strengthened 1 located in the electrostatic adsorption box body 2. In order to improve the spraying efficiency, a delivery pump can be arranged on the rare earth delivery pipeline 34 to provide power for powder delivery. At the same time, a valve is arranged at the outlet of the rare earth powder tank 35, and the on-off process of powder delivery is realized by controlling the opening and closing of the valve. The particle spray heads 32 specifically adopt the structure of an existing electrostatic powder spray gun. Through the electrostatic powder spray gun, a high voltage is connected as the positive electrode in the particle spraying area, and the wire to be strengthened 1 is grounded as the negative electrode. Corona discharge occurs at the spraying port due to the positive high voltage, and the charged particles sprayed by the particle spray heads 32 are adsorbed onto the wire to be strengthened 1 under the action of the electrostatic field.
[0024] In order to make the surface of the wire to be strengthened 1 carry a negative static charge, in addition to the above-mentioned method of grounding the wire, in one embodiment, a method of directly adding a negative charge to the wire can also be adopted. In order to achieve this function, the rare earth coating strengthening system 3 is also designed to include an electrostatic generator 31 and an electrostatic adder 30. The electrostatic generator 31 can be arranged inside or outside the electrostatic adsorption box body 2 and can be flexibly selected according to needs. The electrostatic generator 31 is electrically connected with the electrostatic adder 30; the electrostatic adder 30 is located inside the electrostatic adsorption box body 2 and is coaxial with the penetration port of the wire to be strengthened 1. The electrostatic generator 31 provides a negative high voltage to the electrostatic adder 30 through a DC high voltage power supply. The electrostatic adder 30 is equivalent to an electrostatic emission rod in the prior art and can emit negative ions, so that the wire passing through its interior can carry a negative charge; when the wire to be strengthened 1 penetrates into the electrostatic adsorption box body 2 from the penetration port, it will pass through the electrostatic adder 30, so that the electrostatic adder 30 can conduct a negative charge to the wire to be strengthened 1 penetrating into the electrostatic adsorption box body 2; since the surface of the wire has static electricity, it is necessary to remove the static electricity of the wire sprayed with the coating. In one embodiment, an electrostatic eliminator 36 is arranged at one end of the electrostatic adsorption box body 2 close to the penetration outlet, and the electrostatic eliminator 36 can remove the electricity on the wire adsorbed with the rare earth powder 33.
[0025] The electrostatic adder 30 conducts the negative charge provided by the electrostatic generator 31 to the wire to be strengthened 1. The particle spray heads 32 make the rare earth powder 33 carry a positive charge and disperse the powder in the electrostatic adsorption box body 2. Through the electrostatic adsorption method, the nanoparticles are adsorbed onto the wire to be strengthened 1, and the corresponding electricity is removed by the electrostatic eliminator 36.
[0026] Due to the smooth surface of the welding wire, it is impossible to achieve a tight combination between the coating and the welding wire during coating. To solve this problem, in one embodiment, a welding wire indentation manufacturing system 5 is designed. The welding wire indentation manufacturing system 5 facilitates the adsorption of rare earth strengthening powder on the welding wire 1 to be strengthened and is not easily swept off by the electrostatic remover 36 in the subsequent process; the welding wire indentation manufacturing system 5 is arranged on the outer side wall of the electrostatic adsorption box 2 near the entrance end. The welding wire indentation manufacturing system 5 includes two servo motors 54 arranged symmetrically up and down. The end of the output shaft of the servo motor 54 is connected with an indentation roller 52. The surface of the indentation roller 52 is provided with a micro smooth convex structure. When one end of the welding wire 1 to be strengthened passes between the two indentation rollers 52, the two indentation rollers 52 rotate and squeeze the surface of the welding wire, and indentations can be formed on the surface of the welding wire 1 to be strengthened through the smooth convex structure. In order to achieve precise control during the indentation manufacturing process, in one embodiment, a pressure sensor 51 is provided on the output shaft of the servo motor 54, and a displacement sensor 53 is provided on the indentation roller 52. The pressure sensor 51 is used to record the pressure value during the indentation manufacturing process, and the displacement sensor 53 is used to record the indentation depth during the indentation manufacturing process; specifically, the servo motor 54 is used to push the indentation roller 52 to manufacture indentations on the welding wire 1 to be strengthened. The pressure sensor 51 is used to record the pressure level during the indentation manufacturing process to avoid differences in indentation depth caused by excessive pressure changes. The displacement sensor 53 is used to record the displacement depth during the indentation manufacturing process. When the indentation depth exceeds the expected value, the overall pressure is reduced to avoid excessive deformation of the welding wire caused by too deep indentations; in this embodiment, the indentation depth detected by the displacement sensor 53 is preferably 5%-15% of the welding wire diameter.
[0027] In one embodiment, the pressure value P and the filling volume of rare earth powder a are calculated by the following method: ; In the formula, H is the material hardness, P is the pressure value, b is the indentation length, V is the roller speed; the indentation area S is represented by the radius R of the tip of the pressing wheel and the indentation length b , and the specific expression is as follows ; In the formula, R is the radius of the tip of the pressing wheel; the overall indentation area is approximately 2 S , therefore, by regulating the pressure value P , the filling volume aDetermination of the value; to ensure that the overall deformation degree of the welding wire after being pressed is relatively low, the indentation depth should be less than one-fourth of the diameter of the welding wire.
[0028] Since the diameter of the welding wire sprayed with the rare earth coating will increase, in order to make the diameter after strengthening match the diameter before strengthening, in one embodiment, a rolling roller 37 is designed. The surface of the rolling roller 37 is a smooth structure. By using multiple rolling rollers 37 to roll the surface of the welding wire sprayed with the rare earth coating, the coating can be more tightly connected to the welding wire, and then the overall diameter can be reduced until it is the same as the diameter of the welding wire before coating strengthening. In order to install the rolling roller 37, in one embodiment, the electrostatic adsorption box 2 includes an electrostatic removal box 21. The electrostatic removal box 21 is fixed at the wire passing-out position of the electrostatic adsorption box 2. After the welding wire to be strengthened is coated with rare earth powder 33, it passes through one end of the electrostatic removal box 21 located inside the electrostatic adsorption box 2 and passes out through one end of the electrostatic removal box 21 located outside the electrostatic adsorption box 2; the electrostatic remover 36 is arranged at the wire passing-in position of the electrostatic removal box 21. A plurality of rolling rollers 37 are arranged in a ring inside the electrostatic removal box 21. After removing the corresponding electric charge through the electrostatic remover 36, the welding wire attached with rare earth powder 33 is made into a rare earth-coated strengthened welding wire 4 with the same size as the welding wire 1 to be strengthened by relying on the rolling rollers 37.
[0029] The present invention also provides a method for strengthening a magnesium alloy welding wire, including the following steps: S1, confirm the diameter of the welding wire 1 to be strengthened, the diameter and composition of the rare earth powder 33 particles used as the strengthening coating, confirm the indentation size, spraying speed, the electric charge attached to the rare earth powder 33 particles, and the wire feeding speed; the applicable range of the diameter of the welding wire 1 to be strengthened is 0.8 - 1.6 mm, and the applicable range of the material of the welding wire 1 to be strengthened is light metals such as aluminum and magnesium. The maximum speed of the powder addition of the particle spraying head 32 does not exceed 5 m / s.
[0030] S2, after confirming the parameters in step S1, use the welding wire 1 to be strengthened with a length of about 5 - 10 m for treatment. An existing wire feeder can be set at one end of the device of the present invention to uniformly feed the wound welding wire 1 to be strengthened into the electrostatic adsorption box 2, and an existing wire feeder can be set at the other end of the device of the present invention to wind up the strengthened welding wire; start the wire feeder and other equipment to uniformly feed the welding wire 1 to be strengthened into the electrostatic adsorption box 2 and perform coating strengthening treatment on the welding wire 1 to be strengthened, and detect the quality of the welding wire after passing out of the electrostatic adsorption box to confirm whether the surface of the welding wire is evenly coated with the rare earth powder 33 coating; during the process, an inert gas environment needs to be maintained inside the electrostatic adsorption box 2 to protect the welding wire and rare earth elements from being oxidized.
[0031] S3. Determine whether to adjust the parameters in step S1 according to the detection result in step S2. If the parameters need to be adjusted, modify the parameters in step S1 and then test again. If no adjustment is needed, directly manufacture until the wire strengthening is completed. In the present invention, specific examples are used to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention; at the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation of the present invention.
Claims
1. A magnesium alloy welding wire strengthening device, characterized in that: Including: An electrostatic adsorption box body, which is internally sealed, and the wire to be strengthened can penetrate into the electrostatic adsorption box body through the penetration port at one end of the electrostatic adsorption box body and penetrate out from the penetration port at the other end of the electrostatic adsorption box body. The wire to be strengthened can be conducted with negative electricity during the process of penetrating into the electrostatic adsorption box body; A rare earth coating strengthening system, which is communicated with the electrostatic adsorption box body and can spray rare earth powder with positive electricity onto the surface of the wire to be strengthened located inside the electrostatic adsorption box body; the rare earth coating strengthening system includes a rare earth powder tank for containing rare earth powder. The rare earth powder tank is connected with a plurality of particle spraying heads through a rare earth conveying pipeline. The plurality of particle spraying heads are respectively arranged in a ring on the inner wall of the electrostatic adsorption box body. The particle spraying heads can make the rare earth powder carry positive electricity and spray the rare earth powder with positive electricity onto the surface of the wire to be strengthened located inside the electrostatic adsorption box body.
2. The magnesium alloy welding wire strengthening device according to claim 1, characterized in that: The rare earth coating strengthening system further includes an electrostatic generator and an electrostatic adder, and the electrostatic generator is electrically connected with the electrostatic adder; the electrostatic adder is located inside the electrostatic adsorption box body, and the electrostatic adder is coaxial with the penetration port of the wire to be strengthened; the electrostatic adder can conduct negative electricity to the wire to be strengthened penetrating into the electrostatic adsorption box body.
3. The magnesium alloy welding wire strengthening device according to claim 1, wherein: It further includes a wire indentation manufacturing system, which is arranged on the outer side wall of the electrostatic adsorption box body near the penetration port end. The wire indentation manufacturing system can manufacture indentations on the surface of the wire to be strengthened before it penetrates into the electrostatic adsorption box body.
4. The magnesium alloy welding wire strengthening device according to claim 3, characterized in that: The wire indentation manufacturing system includes two servo motors arranged symmetrically up and down. The end of the output shaft of the servo motor is connected with an indentation roller. One end of the wire to be strengthened passes through between the two indentation rollers and forms an indentation on the surface, and then enters the electrostatic adsorption box body.
5. The magnesium alloy welding wire strengthening device according to claim 4, wherein: A pressure sensor is arranged on the output shaft of the servo motor, and a displacement sensor is arranged on the indentation roller. The pressure sensor is used to record the pressure value during the indentation manufacturing process, and the displacement sensor is used to record the indentation depth during the indentation manufacturing process; Among them, the pressure value P and the filling volume of rare earth powder a are calculated by the following method ； In the formula, H is the material hardness, P is the pressure value, b is the indentation length, V is the roller speed; the indentation area S is represented by the radius of the tip of the pressure wheel R and the indentation length b and the specific expression is as follows ； In the formula, R is the radius of the tip of the pressing wheel; the overall indentation area is approximately 2 S , therefore, the volume of rare earth powder filling can be determined by adjusting the pressure value P , realizing the determination of the value of a .
6. The magnesium alloy welding wire strengthening device according to claim 1, wherein: An electrostatic eliminator is arranged at the end of the electrostatic adsorption box body near the penetration port. The electrostatic eliminator can remove the electricity on the wire adsorbed with rare earth powder.
7. The magnesium alloy welding wire strengthening device according to claim 6, wherein: The electrostatic adsorption box body includes an electrostatic removal box body, and the electrostatic removal box body is fixed at the penetration port position of the electrostatic adsorption box body. After the wire to be strengthened is coated with rare earth powder, it penetrates into the electrostatic adsorption box body through one end of the electrostatic removal box body located inside the electrostatic adsorption box body and penetrates out from the end of the electrostatic removal box body located outside the electrostatic adsorption box body; The electrostatic eliminator is arranged at the wire penetration position of the electrostatic removal box body.
8. The magnesium alloy welding wire strengthening device according to claim 7, characterized in that: A plurality of rolling rollers are arranged in a ring inside the electrostatic removal box body, and the rolling rollers can roll the surface of the wire passing through the inside of the electrostatic removal box body.
9. A method for strengthening a magnesium alloy welding wire, characterized in that: Including the following steps: S1. Confirm the diameter of the wire to be strengthened, the diameter and composition of the rare earth powder particles used as the strengthening coating, confirm the indentation size, spraying speed, the amount of electricity attached to the rare earth powder particles, and the wire feeding speed; S2. After confirming the parameters in step S1, start the wire feeding device to uniformly feed the wire to be strengthened into the electrostatic adsorption box body, and perform coating strengthening treatment on the wire to be strengthened. Detect the quality of the wire after passing through the electrostatic adsorption box to confirm whether the surface of the wire is evenly coated with a rare earth powder coating; S3. Judge whether to adjust the parameters in step S1 according to the detection results in step S2. If the parameters need to be adjusted, modify the parameters in step S1 and then test again. If no adjustment is required, directly manufacture until the wire strengthening is completed.