Manufacturing device and manufacturing process of crater and microcrack resistant low-alloy heat-resistant welding rod

Abstract

The invention discloses a manufacturing device and a manufacturing process of a low-alloy heat-resistant welding rod capable of resisting craters and micro-cracks, and belongs to the technical field of welding rod manufacturing devices and processes. The manufacturing device comprises a drying machine body, and the drying machine body is provided with a conversion bin A. According to the manufacturing device, a mixed-flow impeller A, a mixed-flow impeller B and a mixed-flow impeller C are matched with one another, so that the arc crater and micro-crack resistance is achieved; steam generated when the electric heater dries the welding rod in the flowing drying piece A is subjected to dehydration treatment through the drying tank B, then the welding rod in the flowing drying piece B is subjected to secondary pre-drying treatment, steam generated when the welding rod is subjected to secondary drying treatment is subjected to dehydration treatment through the drying tank A, and then the welding rod in the flowing drying piece C is subjected to primary pre-drying treatment. And on the other hand, the welding rods to be cured and dried are subjected to curing and drying treatment at various environment temperatures, and the situation that the temperature difference between the inner portions and the outer portions of the welding rods to be cured and dried is large, and consequently a coating layer cracks is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of welding rod manufacturing devices and processes, and in particular relates to a low alloy heat-resistant welding rod manufacturing device and a manufacturing process thereof that is resistant to arc crater microcracks. Background Art

[0002] The low alloy heat-resistant welding rod with arc crater microcrack resistance is a specially designed welding material, which aims to overcome the arc crater microcrack problem that is easy to occur in the welding process of the traditional low alloy heat-resistant welding rod. The preparation method of the low alloy heat-resistant welding rod with arc crater microcrack resistance usually includes the following steps:

[0003] Material preparation: According to the component requirements of the welding core, accurately weigh various alloy elements and mix them evenly. At the same time, prepare the raw materials for the coating, such as various mineral powders, binders, etc.;

[0004] Welding core preparation: The uniformly mixed alloy elements are made into a welding core that meets the requirements through a specific process (such as smelting, rolling, etc.). The diameter and length of the welding core should be customized according to the welding requirements;

[0005] Coating: After the prepared coating materials are mixed evenly, they are coated on the surface of the welding core through a specific coating process. During the coating process, it is necessary to ensure that the uniformity and thickness of the coating meet the requirements;

[0006] Drying and curing: After coating, the electrode needs to be dried and cured. The purpose of this step is to volatilize and solidify the binder in the coating, so as to ensure that the coating can remain stable during the welding process;

[0007] Inspection and packaging: After drying and curing, the welding rod needs to be inspected for quality. The inspection content includes the appearance, size, chemical composition and welding performance of the welding rod. The welding rods that pass the inspection should be packaged and labeled for storage and transportation.

[0008] The prior art discloses some invention patents in the field of welding rod manufacturing devices and process technology, among which the invention patent with publication number CN102829614B discloses a welding rod drying device for welding rod production, which includes a frame, a microwave drying device, and a transmission mechanism. The microwave drying device and the transmission mechanism are arranged on the frame. The transmission mechanism includes a special conveying chain for microwave drying welding rods and a special slideway for the conveying chain. The surface of the special slideway for the conveying chain has a slideway covering layer that can prevent the special conveying chain for microwave drying welding rods from generating sparks during the conveying process. The beneficial effect of the invention is that the energy saving effect is obvious, and the energy saving amount is 50% compared with the currently used hot air chain furnace. %~70% standard coal / ton product; meet environmental protection requirements, solve the problem of drying products without coal, and reduce the drying cost of electric welding rods; improve the working environment conditions of operators; shorten the drying distance of products, improve product quality, and reduce the rate of defective products; simplify the equipment structure and reduce the maintenance workload. This technical solution still has some shortcomings in the process of application. In the process of curing and drying processing, the welding rods in the prior art are mostly directly heated and dried. Due to the high heating temperature, the temperature difference between the inside and outside of the welding rod is large in the initial stage, which can easily cause cracks in the coating layer. After the heating and drying treatment is completed, hot steam discharge and cooling treatment are required, which is time-consuming and has a high energy loss rate.

[0009] Based on this, the present invention designs a low-alloy heat-resistant welding rod manufacturing device and a manufacturing process thereof that are resistant to arc crater microcracks to solve the above problems. Summary of the invention

[0010] The purpose of the present invention is to solve the problem that in the process of curing and drying, the existing low-alloy heat-resistant welding rod manufacturing device that resists arc crater microcracks mostly directly heats and dries the welding rod. Due to the high heating temperature, the temperature difference between the inside and outside of the welding rod is large in the initial stage, which can easily cause cracks in the coating layer. After the heating and drying process is completed, hot steam discharge and cooling treatment are required, which is time-consuming and has a high energy loss rate. A low-alloy heat-resistant welding rod manufacturing device that resists arc crater microcracks and a manufacturing process thereof are proposed.

[0011] In order to achieve the above object, the present invention adopts the following technical solutions:

[0012] A manufacturing device for low-alloy heat-resistant welding rods resistant to arc crater microcracks, comprising a dryer body, a conversion bin A is provided on the dryer body, a plurality of heating grooves are provided on the inner bottom of the conversion bin A, electric heaters are installed in the plurality of heating grooves, a plurality of adapter grooves A are provided on the inner wall of the conversion bin A, a flow drying assembly is rotatably connected to the plurality of adapter grooves A corresponding to the plurality of adapter grooves A in the conversion bin A, a front end cover and a rear end cover are respectively sealed at both ends of the dryer body corresponding to the flow drying assembly, the rear end cover and the front end cover are hinged to the dryer body by hinges, and a preheating assembly is arranged between the front end cover, the flow drying assembly and the rear end cover.

[0013] As a further description of the above technical solution:

[0014] The flow drying component includes a conversion column which is sleeved in a conversion bin A, and a plurality of transfer wheels A are mounted on the conversion column corresponding to a plurality of transfer slots A. The conversion column is rotatably connected to a plurality of transfer slots A through a plurality of transfer wheels A. A plurality of conversion bins B in a circular array are provided at the end of the conversion column, and a plurality of transfer slots B are provided in each of the plurality of conversion bins B. A flow drying component A, a flow drying component B, a flow drying component C and a flow drying component D are rotatably connected to the plurality of transfer slots B corresponding to the plurality of conversion bins B.

[0015] As a further description of the above technical solution:

[0016] The structures of the mobile drying parts A, B, C and D are the same. The mobile drying part D includes a drying cylinder sleeved in the conversion bin B. The drying cylinder is provided with a plurality of transfer wheels B. The drying cylinder is rotatably connected to the conversion bin B through the plurality of transfer wheels B.

[0017] As a further description of the above technical solution:

[0018] The end of the drying cylinder is sleeved with an inner gear ring, the tooth surface of the inner gear ring is meshed with a gear, the gear is rotatably assembled on the conversion column, the inner gear ring is connected to the outer gear ring through a gear transmission, and the outer gear ring is sleeved in the conversion chamber A.

[0019] As a further description of the above technical solution:

[0020] An insertion slot is provided at the end of the conversion column, and a driving component for driving the conversion column to rotate in a counterclockwise direction is connected to the corresponding insertion slot on the front end cover, and the driving component includes a slide rail connected to the front end cover, a slide seat is slidably connected to the slide rail, a motor A is installed on the slide seat, and an insertion head is connected to the output shaft of the motor A, and the other end of the insertion head passes through the docking hole provided on the front end cover and is inserted into the insertion slot;

[0021] The slide rail is provided with an adapter hole, a threaded sleeve is rotatably connected to the port of the adapter hole, a threaded rod is threadedly connected to the threaded sleeve, a docking port is provided between the corresponding threaded rod and the slide seat on the slide rail, a docking plate is slidably connected to the docking port, and the slide seat is connected to the threaded rod via the docking plate.

[0022] As a further description of the above technical solution:

[0023] A groove body A is provided on the front cover corresponding to the flow drying part A, a groove body B is provided on the rear cover corresponding to the flow drying part B, a guide groove A is provided on the inner bottom of the groove body B along the tangential direction, a groove body C is provided on the front cover corresponding to the flow drying part C, and a guide groove B is provided on the inner bottom of the groove body C along the tangential direction.

[0024] As a further description of the above technical solution:

[0025] The preheating component includes a mixed flow impeller A rotatably connected to the trough body A, a motor B is installed on the front end cover corresponding to the mixed flow impeller A, the output shaft of the motor B is connected to the wheel axle of the mixed flow impeller A, the mixed flow impeller B is rotatably connected in the trough body B, the mixed flow impeller B is mounted with a driving wheel A, the trough body C is rotatably connected with the mixed flow impeller C, the wheel axle of the mixed flow impeller C is mounted with a driving wheel B, the rear end cover is equipped with a drying tank A corresponding to the flow drying part A and the guide groove A, and the front end cover is equipped with a drying tank B corresponding to the flow drying part B and the guide groove B.

[0026] As a further description of the above technical solution:

[0027] The rear end cover is provided with loading and unloading ports corresponding to the flow drying part C, and the rear end cover is provided with sealing covers hingedly connected with the loading and unloading ports via spring hinges.

[0028] A manufacturing process of a low alloy heat-resistant welding rod resistant to arc crater microcracks comprises the following steps:

[0029] First open the front cover, then put multiple mesh plates with welding rods to be cured and dried into multiple drying cylinders in turn, then close the front cover, and after the front cover is completely closed, twist the threaded cylinder, and under the action of the threaded cylinder, the threaded rod drives the docking plate to slide in the docking port, and the docking plate drives the motor A to move toward the conversion column on the slide rail through the slide seat until the insertion head is completely immersed in the insertion slot. Since the port of the insertion slot and the end of the insertion head are both rounded, the insertion head can be smoothly immersed in the insertion slot;

[0030] The electric heater in the heating tank is controlled to work, and the electric heater releases heat to heat the drying cylinder of the flow drying part A, so as to dry the welding rods to be cured and dried inside it. In this process, the motor B is controlled to operate, and the motor B drives the mixed flow impeller A in the tank body A to rotate rapidly. The hot air flow of the drying cylinder flows from the front end cover to the rear end cover, and finally flows into the guide groove A after being dried by the drying tank B, and then flows into the tank body B, and directly acts on the driving wheel A. The driving wheel A drives the mixed flow impeller B to rotate, and the hot air flow of the drying cylinder flows from the rear end cover to the front end cover, and finally flows into the guide groove B after being dried by the drying tank A, and then flows into the tank body C, and directly acts on the driving wheel B. The driving wheel B drives the mixed flow impeller C to rotate, and the hot air flow of the drying cylinder flows from the front end cover to the rear end cover, and then is discharged;

[0031] Control motor A to run. The output shaft of motor A drives the conversion column to rotate through the cooperation of the insertion head and the insertion slot. The conversion column rotates ninety degrees in the counterclockwise direction. During the rotation of the conversion column, multiple drying cylinders will be driven to make circular motions. The inner gear ring and the outer gear ring on the drying cylinder will move relative to each other. Under the transmission effect of the gears, the load-carrying mesh plates in the multiple drying cylinders are always in a horizontal state.

[0032] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0033] 1. In the present invention, under the cooperation of mixed flow impeller A, mixed flow impeller B and mixed flow impeller C, the steam generated by the drying of the welding rod in the flow drying part A is dehydrated by the electric heater through the drying tank B, and then the welding rod in the flow drying part B is subjected to a second pre-drying treatment. The steam generated by the secondary drying of the welding rod is dehydrated through the drying tank A, and then the welding rod in the flow drying part C is subjected to a first pre-drying treatment. On the one hand, the flow of airflow can improve the uniformity of the temperature distribution inside the drying cylinder, which is conducive to uniform drying. On the other hand, the welding rod to be cured and dried can be cured and dried under various ambient temperatures, thereby avoiding cracks in the coating layer caused by the large temperature difference between the inside and outside of the welding rod to be cured and dried.

[0034] 2. In the present invention, the conversion column rotates ninety degrees in a single counterclockwise direction. During the rotation of the conversion column, the multiple drying cylinders will be driven to make circular motions. The inner gear ring and the outer gear ring on the drying cylinders will move relative to each other. Under the transmission effect of the gears, the load-carrying mesh plates in the multiple drying cylinders are always in a horizontal state, thereby avoiding relative motion between the welding rods and causing wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a schematic diagram of the overall structure of a low-alloy heat-resistant welding rod manufacturing device and a manufacturing process thereof for resisting arc crater microcracks proposed by the present invention;

[0036] Figure 2 This is a schematic structural diagram of a low-alloy heat-resistant welding rod manufacturing device for resisting arc crater microcracks and a flow drying component in a manufacturing process thereof from another perspective;

[0037] Figure 3 This is a schematic structural diagram of a disassembled flow drying component in a manufacturing device for a low-alloy heat-resistant welding rod resistant to arc crater microcracks and a manufacturing process thereof proposed by the present invention;

[0038] Figure 4 A schematic structural diagram of a low-alloy heat-resistant welding rod manufacturing device and a manufacturing process thereof for resisting arc crater microcracks proposed by the present invention from another perspective;

[0039] Figure 5 A schematic structural diagram of a driving component in a manufacturing device for a low-alloy heat-resistant welding rod resistant to arc crater microcracks and a manufacturing process thereof from another perspective;

[0040] Figure 6 A low alloy heat-resistant welding rod manufacturing device and manufacturing process thereof for resisting arc crater microcracks proposed by the present invention Figure 5 The enlarged structural diagram at A in the middle;

[0041] Figure 7 A schematic diagram of the structure of a low-alloy heat-resistant welding rod manufacturing device and a manufacturing process thereof for resisting arc crater microcracks proposed by the present invention after being disassembled from another perspective;

[0042] Figure 8 This is a schematic diagram of the structure of a manufacturing device for a low-alloy heat-resistant welding rod resistant to arc crater microcracks and a manufacturing process thereof after being disassembled;

[0043] Fig. 9 The present invention provides a low alloy heat-resistant welding rod manufacturing device and a structural schematic diagram of the preheating component part in the manufacturing process thereof.

[0044] Legend:

[0045] 1. Dryer body; 2. Conversion chamber A; 3. Heating tank; 4. Electric heater; 5. Transfer tank A; 6. Flow drying assembly; 601. Conversion column; 602. Transfer wheel A; 603. Conversion chamber B; 604. Transfer tank B; 605. Flow drying component A; 606. Flow drying component B; 607. Flow drying component C; 608. Flow drying component D; 6081. Drying cylinder; 6082. Transfer wheel B; 6083. Loading mesh plate; 6084. Inner gear ring; 6085. Gear; 609. Outer gear ring; 7. Plug Groove; 8. Drive assembly; 801. Slide rail; 802. Threaded sleeve; 803. Threaded rod; 804. Slide seat; 805. Motor A; 806. Insertion head; 9. Front cover; 10. Groove body A; 11. Preheating assembly; 1101. Mixed flow impeller A; 1102. Motor B; 1103. Mixed flow impeller B; 1104. Drive wheel A; 1105. Mixed flow impeller C; 1106. Drive wheel B; 1107. Drying tank A; 1108. Drying tank B; 12. Sealing cover; 13. Rear cover; 14. Groove body B. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] Please see attached Figure 1 -Attached Fig. 9 The present invention provides a technical solution: a manufacturing device for low-alloy heat-resistant welding rods resistant to arc crater microcracks, comprising a dryer body 1, a conversion chamber A2 is provided on the dryer body 1, a plurality of heating grooves 3 are provided on the inner bottom of the conversion chamber A2, electric heaters 4 are installed in the plurality of heating grooves 3, a plurality of adapter grooves A5 are provided on the inner wall of the conversion chamber A2, a flow drying component 6 is rotatably connected to the corresponding plurality of adapter grooves A5 in the conversion chamber A2, a front end cover 9 and a rear end cover 13 are respectively blocked at the two ends of the dryer body 1 corresponding to the flow drying component 6, the rear end cover 13 and the front end cover 9 are hinged to the dryer body 1 through hinges, and a preheating component 11 is arranged between the front end cover 9, the flow drying component 6 and the rear end cover 13.

[0048] Specifically, the flow drying component 6 includes a conversion column 601 which is sleeved in the conversion bin A2, and a plurality of transfer wheels A602 are mounted on the conversion column 601 corresponding to the plurality of transfer slots A5. The conversion column 601 is rotatably connected to the plurality of transfer slots A5 through the plurality of transfer wheels A602. A plurality of conversion bins B603 in a circular array are provided at the end of the conversion column 601, and a plurality of transfer slots B604 are provided in the plurality of conversion bins B603. The plurality of conversion bins B603 are respectively rotatably connected to the plurality of transfer slots B604 corresponding to the plurality of transfer slots A605, the plurality of flow drying components A606, the flow drying components C607 and the flow drying components D608.

[0049] Specifically, the structures of the mobile drying component A605, the mobile drying component B606, the mobile drying component C607 and the mobile drying component D608 are the same. The mobile drying component D608 includes a drying cylinder 6081 which is sleeved in the conversion bin B603. The drying cylinder 6081 is provided with a plurality of transfer wheels B6082. The drying cylinder 6081 is rotatably connected to the conversion bin B603 through the plurality of transfer wheels B6082.

[0050] Specifically, the end of the drying cylinder 6081 is mounted with an inner gear ring 6084, on the tooth surface of which is meshed a gear 6085, which is rotatably mounted on the conversion column 601, and the inner gear ring 6084 is connected to an outer gear ring 609 through the gear 6085, which is mounted in the conversion bin A2.

[0051] Specifically, an insertion slot 7 is provided at the end of the conversion column 601, and a driving assembly 8 for driving the conversion column 601 to rotate in a counterclockwise direction is connected to the insertion slot 7 on the front end cover 9. The driving assembly 8 includes a slide rail 801 connected to the front end cover 9, a slide seat 804 is slidably connected to the slide rail 801, a motor A805 is installed on the slide seat 804, an insertion head 806 is connected to the output shaft of the motor A805, and the other end of the insertion head 806 passes through the docking hole provided on the front end cover 9 and is inserted into the insertion slot 7;

[0052] A transfer hole is provided on the slide rail 801, and a threaded sleeve 802 is rotatably connected to the port of the transfer hole. A threaded rod 803 is threadedly connected to the threaded sleeve 802. A docking port is provided between the corresponding threaded rod 803 and the slide seat 804 on the slide rail 801, and a docking plate is slidably connected to the docking port. The slide seat 804 is connected to the threaded rod 803 through the docking plate.

[0053] Specifically, a groove body A10 is opened on the front cover 9 corresponding to the flow drying part A605, a groove body B14 is opened on the rear cover 13 corresponding to the flow drying part B606, a guide groove A is opened on the inner bottom of the groove body B14 along the tangential direction, and a groove body C15 is opened on the front cover 9 corresponding to the flow drying part C607, and a guide groove B is opened on the inner bottom of the groove body C15 along the tangential direction.

[0054] Specifically, the preheating component 11 includes a mixed flow impeller A1101 rotatably connected to the tank body A10, a motor B1102 is installed on the front end cover 9 corresponding to the mixed flow impeller A1101, the output shaft of the motor B1102 is connected to the axle of the mixed flow impeller A1101, a mixed flow impeller B1103 is rotatably connected in the tank body B14, and a driving wheel A1104 is mounted on the mixed flow impeller B1103, a mixed flow impeller C1105 is rotatably connected in the tank body C15, and a driving wheel B1106 is mounted on the axle of the mixed flow impeller C1105, a drying tank A1107 is mounted on the rear end cover 13 corresponding to the flow drying part A605 and the guide groove A, and a drying tank B1108 is mounted on the front end cover 9 corresponding to the flow drying part B606 and the guide groove B.

[0055] Specifically, a loading and unloading opening is provided on the rear end cover 13 corresponding to the flow drying part C607, and a sealing cover 12 is hingedly connected to the rear end cover 13 corresponding to the loading and unloading opening through a spring hinge.

[0056] A manufacturing process of a low alloy heat-resistant welding rod resistant to arc crater microcracks comprises the following steps:

[0057] First, open the front cover 9, then put the multiple material-carrying mesh plates 6083 with the welding rods to be cured and dried into the multiple drying cylinders 6081 in turn, and then close the front cover 9. After the front cover 9 is completely closed, twist the threaded cylinder. Under the action of the threaded cylinder, the threaded rod 803 drives the docking plate to slide in the docking port. The docking plate drives the motor A805 on the slide rail 801 to move toward the conversion column 601 through the slide seat 804 until the insertion head 806 is completely immersed in the insertion slot 7. Since the port of the insertion slot 7 and the end of the insertion head 806 are both rounded, the insertion head 806 can be smoothly immersed in the insertion slot 7.

[0058] The electric heater 4 in the heating tank 3 is controlled to work, and the electric heater 4 releases heat to heat the drying cylinder 6081 of the flow drying part A605, so as to dry the welding rod to be cured and dried inside. In this process, the motor B1102 is controlled to operate, and the motor B1102 drives the mixed flow impeller A1101 in the tank body A10 to rotate rapidly. The hot air flow of the drying cylinder 6081 flows from the front cover 9 to the rear cover 13, and finally flows into the guide groove A after being dried by the drying tank B1108, and then flows into the tank body B. 14, and directly acts on the driving wheel A1104, the driving wheel A1104 drives the mixed flow impeller B1103 to rotate, the hot air flow of the drying cylinder 6081 flows from the rear end cover 13 to the front end cover 9, and finally flows into the guide groove B after being dried by the drying tank A1107, and then flows into the groove body C15, and directly acts on the driving wheel B1106, the driving wheel B1106 drives the mixed flow impeller C1105 to rotate, the hot air flow of the drying cylinder 6081 flows from the front end cover 9 to the rear end cover 13, and then is discharged;

[0059] The motor A805 is controlled to run. The output shaft of the motor A805 drives the conversion column 601 to rotate through the cooperation of the insertion head 806 and the insertion slot 7. The conversion column 601 rotates ninety degrees in the counterclockwise direction. During the rotation of the conversion column 601, multiple drying cylinders 6081 are driven to make circular motions. The inner gear ring 6084 and the outer gear ring 609 on the drying cylinder 6081 move relative to each other. Under the transmission effect of the gear 6085, the loading screens 6083 in the multiple drying cylinders 6081 are always in a horizontal state.

[0060] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A manufacturing device for low-alloy heat-resistant welding rods resistant to arc crater microcracks, comprising a dryer body (1), a conversion chamber A (2) is provided on the dryer body (1), a plurality of heating grooves (3) are provided on the inner bottom of the conversion chamber A (2), and electric heaters (4) are installed in the plurality of heating grooves (3), characterized in that: The inner wall of the conversion chamber A (2) is provided with a plurality of transfer grooves A (5), and a flow drying assembly (6) is rotatably connected to the plurality of transfer grooves A (5) in the conversion chamber A (2), and two ends of the flow drying assembly (6) on the dryer body (1) corresponding to the flow drying assembly (6) are respectively blocked with a front cover (9) and a rear cover (13), and the rear cover (13) and the front cover (9) are hingedly connected to the dryer body (1) through hinges, and a preheating assembly (11) is arranged between the front cover (9), the flow drying assembly (6) and the rear cover (13).

2. The manufacturing device of a low alloy heat-resistant welding rod resistant to arc crater microcracks according to claim 1 is characterized in that: The flow drying component (6) comprises a conversion column (601) sleeved in a conversion bin A (2); a plurality of transfer wheels A (602) are mounted on the conversion column (601) corresponding to the plurality of transfer grooves A (5); the conversion column (601) is rotatably connected to the plurality of transfer grooves A (5) via the plurality of transfer wheels A (602); a plurality of conversion bins B (603) in a circular array are provided at the end of the conversion column (601); a plurality of transfer grooves B (604) are provided in each of the plurality of conversion bins B (603); and a flow drying component A (605), a flow drying component B (606), a flow drying component C (607) and a flow drying component D (608) are rotatably connected to the plurality of transfer grooves B (604) in the plurality of conversion bins B (603).

3. The manufacturing device of a low alloy heat-resistant welding rod resistant to arc crater microcracks according to claim 2 is characterized in that: The structures of the mobile drying component A (605), the mobile drying component B (606), the mobile drying component C (607) and the mobile drying component D (608) are the same. The mobile drying component D (608) includes a drying cylinder (6081) which is sleeved in the conversion bin B (603). The drying cylinder (6081) is provided with a plurality of transfer wheels B (6082). The drying cylinder (6081) is rotatably connected to the conversion bin B (603) via the plurality of transfer wheels B (6082).

4. The manufacturing device of the low alloy heat-resistant welding rod resistant to arc crater microcracks according to claim 3 is characterized in that: The end of the drying cylinder (6081) is sleeved with an inner gear ring (6084), the tooth surface of which is meshed with a gear (6085), the gear (6085) being rotatably mounted on the conversion column (601), the inner gear ring (6084) being transmission-connected to an outer gear ring (609) via the gear (6085), and the outer gear ring (609) being sleeved in the conversion bin A (2).

5. The manufacturing device of low alloy heat-resistant welding rod resistant to arc crater microcracks according to claim 4 is characterized in that: An insertion slot (7) is provided at the end of the conversion column (601), and a driving component (8) for driving the conversion column (601) to rotate in a counterclockwise direction is connected to the insertion slot (7) on the front end cover (9), and the driving component (8) includes a slide rail (801) connected to the front end cover (9), and a slide seat (804) is slidably connected to the slide rail (801), and a motor A (805) is installed on the slide seat (804), and an insertion head (806) is connected to the output shaft of the motor A (805), and the other end of the insertion head (806) passes through a docking hole provided on the front end cover (9) and is inserted into the insertion slot (7); The slide rail (801) is provided with an adapter hole, a threaded sleeve (802) is rotatably connected in the port of the adapter hole, a threaded rod (803) is threadedly connected in the threaded sleeve (802), a docking port is provided between the corresponding threaded rod (803) and the slide seat (804) on the slide rail (801), a docking plate is slidably connected in the docking port, and the slide seat (804) is connected to the threaded rod (803) via the docking plate.

6. The manufacturing device of low alloy heat-resistant welding rod resistant to arc crater microcracks according to claim 1 is characterized in that: The front end cover (9) is provided with a groove body A (10) corresponding to the flow drying part A (605), the rear end cover (13) is provided with a groove body B (14) corresponding to the flow drying part B (606), the inner bottom of the groove body B (14) is provided with a guide groove A along the tangential direction, and the front end cover (9) is provided with a groove body C (15) corresponding to the flow drying part C (607), and the inner bottom of the groove body C (15) is provided with a guide groove B along the tangential direction.

7. The manufacturing device of low alloy heat-resistant welding rod resistant to arc crater microcracks according to claim 6 is characterized in that: The preheating assembly (11) comprises a mixed flow impeller A (1101) rotatably connected to the tank body A (10); a motor B (1102) is installed on the front end cover (9) corresponding to the mixed flow impeller A (1101); the output shaft of the motor B (1102) is connected to the wheel shaft of the mixed flow impeller A (1101); a mixed flow impeller B (1103) is rotatably connected to the tank body B (14); and a mixed flow impeller B (1103) is mounted on the mixed flow impeller B (1103). A driving wheel A (1104), a mixed flow impeller C (1105) is rotatably connected in the trough body C (15), a driving wheel B (1106) is mounted on the wheel shaft of the mixed flow impeller C (1105), a drying tank A (1107) is mounted on the rear end cover (13) corresponding to the flow drying member A (605) and the guide groove A, and a drying tank B (1108) is mounted on the front end cover (9) corresponding to the flow drying member B (606) and the guide groove B.

8. The manufacturing device of low alloy heat-resistant welding rod resistant to arc crater microcracks according to claim 1 is characterized in that: The rear end cover (13) is provided with upper and lower material ports corresponding to the flow drying part C (607), and the rear end cover (13) is hinged with a sealing cover (12) corresponding to the upper and lower material ports via a spring hinge.

9. A process for manufacturing low alloy heat-resistant welding rods resistant to arc crater microcracks, characterized in that: The manufacturing device of the low alloy heat-resistant welding rod resistant to arc crater microcracks according to any one of claims 1 to 8 further comprises the following steps: First, open the front cover (9), then place a plurality of material-carrying mesh plates (6083) on which welding rods to be cured and dried are sequentially fed into a plurality of drying cylinders (6081), and then close the front cover (9). After the front cover (9) is completely closed, twist the threaded cylinder, and under the action of the threaded cylinder, the threaded rod (803) drives the docking plate to slide in the docking port, and the docking plate drives the motor A (805) on the slide rail (801) to move toward the conversion column (601) through the slide seat (804) until the insertion head (806) is completely immersed in the insertion slot (7). Since the end of the insertion slot (7) and the end of the insertion head (806) are both rounded, the insertion head (806) can be smoothly immersed in the insertion slot (7); The electric heater (4) in the heating tank (3) is controlled to work, and the electric heater (4) releases heat to heat the drying cylinder (6081) of the flow drying member A (605), thereby drying the welding rod to be cured and dried inside the drying cylinder. During this process, the motor B (1102) is controlled to operate, and the motor B (1102) drives the mixed flow impeller A (1101) in the tank body A (10) to rotate rapidly. The hot air flow of the drying cylinder (6081) flows from the front cover (9) to the rear cover (13), and finally flows into the guide tank A after being dried by the drying tank B (1108), and then flows into the tank body B (1 4) and directly acts on the driving wheel A (1104), the driving wheel A (1104) drives the mixed flow impeller B (1103) to rotate, the hot air flow of the drying cylinder (6081) flows from the rear end cover (13) to the front end cover (9), and finally flows into the guide groove B after being dried by the drying tank A (1107), and then flows into the groove body C (15), and directly acts on the driving wheel B (1106), the driving wheel B (1106) drives the mixed flow impeller C (1105) to rotate, the hot air flow of the drying cylinder (6081) flows from the front end cover (9) to the rear end cover (13), and then is discharged; The motor A (805) is controlled to run. The output shaft of the motor A (805) drives the conversion column (601) to rotate through the cooperation between the insertion head (806) and the insertion slot (7). The conversion column (601) rotates ninety degrees in a single counterclockwise direction. During the rotation of the conversion column (601), the plurality of drying cylinders (6081) are driven to make circular motions. The inner gear ring (6084) and the outer gear ring (609) on the drying cylinder (6081) move relative to each other. Under the transmission effect of the gear (6085), the object-carrying mesh plates (6083) in the plurality of drying cylinders (6081) are always in a horizontal state.

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