A welding process for enhancing the wear resistance of liner

Abstract

The present invention relates to the field of welding process technology, and in particular to a welding processing process for enhancing the wear resistance of a lining plate, comprising a base frame, a driving assembly being arranged on the top of the base frame; a supporting portion being fixedly mounted on the base frame and used for clamping and supporting the lining plate; a welding portion, the welding portion being used for welding a wear-resistant alloy to the lining plate, and the driving assembly being used for driving the welding portion to move. The present invention applies a certain amount of pulling force to the wear-resistant alloy through a positioning test portion, which is beneficial for inspecting the bonding strength between the welded wear-resistant alloy and the lining plate, and ensuring the stability of the welding portion. Through this testing step, the problem of the wear-resistant alloy falling off due to loose welding during subsequent use can be effectively prevented, thereby enhancing the reliability and service life of the lining plate structure.

Description

Technical Field

[0001] The invention relates to the technical field of welding technology, and in particular to a welding process for strengthening the wear resistance of a liner. Background Art

[0002] Lining is a protective component widely used in many industrial fields. It is mainly used inside equipment to protect the equipment body from wear, corrosion or impact damage.

[0003] In hot rolling and cold rolling coil workshops, lining plates are usually installed to protect production equipment from wear during strip processing. However, the long-term interaction between the lining plate and the strip, including constant contact, relative movement, and especially frequent impact and friction, will accelerate the wear of the lining plate contact area. This wear phenomenon not only shortens the service life of the lining plate, forcing the lining plate to be replaced frequently, but may also have an adverse effect on the processing accuracy of the strip and the overall efficiency of the production line. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a welding process for strengthening the wear resistance of the liner.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is: a welding process for enhancing the wear resistance of the liner, the welding process comprising the following steps:

[0006] Step 1: Open a milling groove on the steel lining plate and put the wear-resistant alloy into the milling groove;

[0007] Step 2: Add welding material into the milling groove;

[0008] Step 3: After the laying is completed, the wear-resistant alloy is fixedly embedded into the milling groove of the liner by welding equipment to enhance the wear resistance of the liner;

[0009] Wherein, the welding device in step 3 of the above welding process comprises:

[0010] A base frame, wherein a driving assembly is arranged on the top of the base frame;

[0011] A support portion, fixedly mounted on the base frame, for clamping and supporting the lining plate;

[0012] A welding part, the welding part is used to weld the wear-resistant alloy to the liner, and the driving assembly is used to drive the welding part to move;

[0013] A pressing portion, connected to the welding portion, for pressing the wear-resistant alloy;

[0014] A positioning test part, which is used to position the wear-resistant alloy after the wear-resistant alloy is laid inside the milling groove, and to test the welding result after welding to confirm whether the welding result is qualified;

[0015] Among them, after the welding is completed, the positioning test part adsorbs the top of the wear-resistant alloy, so that the welding part 2 pulls the wear-resistant alloy upward through the positioning test part during the rising process. By applying a certain amount of pulling force to the wear-resistant alloy, it is helpful to test the bonding strength between the welded wear-resistant alloy and the lining plate, and ensure the stability of the welding part. Through this test step, the problem of wear-resistant alloy falling off due to loose welding in the subsequent use process can be effectively prevented, thereby enhancing the reliability and service life of the lining plate structure.

[0016] Preferably, the positioning test unit comprises:

[0017] A first electric push rod, fixedly connected to the welding portion;

[0018] A slide rail, fixedly mounted on the telescopic end of the first electric push rod;

[0019] A rectangular sliding block, slidably connected to the sliding rail;

[0020] Two sets of positioning members, the positioning members comprising:

[0021] A second electric push rod is fixedly connected to the top of the rectangular sliding block;

[0022] A connecting plate, fixedly connected to the telescopic end of the second electric push rod;

[0023] A cylinder, slidably connected to the rectangular slider;

[0024] A test rod, vertically slidably connected to the interior of the cylinder;

[0025] A disc fixedly connected to the end of the test rod;

[0026] A plurality of pressure sensors are fixedly mounted in a circumferential array on a side of the disc away from the connecting plate;

[0027] A first elastic member is fixedly mounted between the disk and the inner top surface of the cylinder;

[0028] A negative pressure assembly is arranged at one end of the test rod away from the disc and is used for positioning the wear-resistant alloy.

[0029] Preferably, the negative pressure component comprises:

[0030] A universal ball, rotatably connected to the end of the test rod;

[0031] A suction plate, fixedly connected to the outer wall of the universal ball;

[0032] The negative pressure pump is fixedly mounted on the adsorption plate, and the negative pressure pump is fixedly connected to the adsorption plate through an exhaust pipe.

[0033] Preferably, it also includes:

[0034] A sealing ring sleeve, slidably connected to the outer wall of the adsorption disk;

[0035] A second elastic member, a fixed portion of the second elastic member is fixedly connected to the sealing sleeve, and a telescopic end of the second elastic member is fixedly connected to the sealing ring sleeve.

[0036] Preferably, it also includes:

[0037] A third elastic member is fixedly mounted on the bottom of the rectangular sliding block;

[0038] A push plate, fixedly connected to the telescopic end of the third elastic member, and having an inclined surface;

[0039] Wherein, in the initial state, the push plate maintains the adsorption disk in an inclined state under the action of the third elastic member.

[0040] Preferably, it also includes:

[0041] Multiple sets of monitoring devices are used to obtain particulate matter parameters.

[0042] Preferably, it also includes:

[0043] A1: Obtaining particulate matter parameters from multiple groups of monitoring devices, wherein the particulate matter parameters are the concentration of dust escape;

[0044] A2: After obtaining multiple sets of particle parameters, arrange them in ascending order according to the particle parameters;

[0045] A3: Control information is generated in sequence based on the size of the particle matter parameters. Under the control of the control information, the welding part is moved to the position with the highest particle matter parameter as the starting point in the next welding, and welding is performed in the order of the size of the particle matter parameter concentration, so that the current required in the welding range where the welding part is located is reduced in sequence.

[0046] Preferably, step A1 comprises:

[0047] The gap range between two adjacent wear-resistant alloys to be welded is divided into multiple welding ranges with equal distances, and a monitoring device is set between each welding range;

[0048] When the welding section is welding the gap, the amount of dust escaping from the gap is monitored by a monitoring device.

[0049] Preferably, step A3 comprises:

[0050] Set a threshold in advance;

[0051] The obtained particle parameters are compared with the threshold value;

[0052] If it is greater than the threshold, a control signal is sent to reduce the current value used in the area where the welding operation is currently being performed to reduce the escape of particulate matter;

[0053] If it is less than or equal to the threshold, no adjustment is made.

[0054] Preferably, it also includes:

[0055] Record the reduced current value within each welding range;

[0056] Binding the reduced current value of each welding range to the particle parameter of the corresponding welding range to obtain a binding value;

[0057] When welding the next gap, the current value is automatically adjusted to the binding value after obtaining the particle parameters within the same range.

[0058] Compared with the prior art, the present invention has the following beneficial effects:

[0059] 1. The present invention sets a positioning test part. The positioning test part and the top pressure part first apply pressure to the tops of the two wear-resistant alloys to be welded to complete the positioning of the wear-resistant alloys. After the welding is completed, a certain amount of pulling force is applied to the wear-resistant alloy by the positioning test part, which is beneficial to test the bonding strength between the welded wear-resistant alloy and the liner and ensure the stability of the welding part. Through this test step, the problem of wear-resistant alloy falling off due to loose welding in the subsequent use process can be effectively prevented, thereby enhancing the reliability and service life of the liner structure.

[0060] 2. The provision of a sealing ring sleeve in the present invention helps the sealing ring sleeve to fit tightly at the joint between the adsorption plate and the wear-resistant alloy, effectively forming a seal, which helps prevent air leakage caused by insufficient sealing due to unevenness at the joint between the adsorption plate and the wear-resistant alloy, helps ensure the stability of the internal and external air pressure difference, and maintains the adsorption capacity of the adsorption plate.

[0061] 3. The present invention tilts the adsorption plate to a specified angle by setting a push plate. On the one hand, the flowing airflow can quickly take away the heat from the weld, accelerate the cooling and solidification process of the weld, and help form a more solid and smooth weld joint. On the other hand, under the action of the airflow, the adsorption plate can capture and collect welding powder and other impurities splashed during the welding process, keep the welding area clean, reduce subsequent cleaning work, and also reduce the potential damage of splashes to operators and equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0062] Figure 1 It is a schematic diagram of the process flow of the present invention;

[0063] Figure 2 The overall structure of the welding device of the present invention is shown in FIG. Figure 1 ;

[0064] Figure 3 The overall structure of the welding device of the present invention is shown in FIG. Figure 2 ;

[0065] Figure 4 This is an enlarged structural view of the connection between the slide rail and the rectangular slider of the present invention;

[0066] Figure 5 The structure diagram of the connection between the rectangular slider and the cylinder of the present invention is shown in FIG. Figure 1 ;

[0067] Figure 6 The structure diagram of the connection between the rectangular slider and the cylinder of the present invention is shown in FIG. Figure 2 ;

[0068] Figure 7 For the present invention Figure 6 A magnified view of the structure at center;

[0069] Figure 8 For the present invention Figure 6 A magnified view of the structure at B in the middle;

[0070] Fig. 9 It is a schematic diagram of the structure of the present invention along the cylindrical section.

[0071] In the figure: 1. base frame; 2. welding part; 3. support rod; 4. placement plate; 5. elastic retractable rod; 6. top pressure plate; 7. first electric push rod; 8. slide rail; 9. rectangular slider; 10. second electric push rod; 11. connecting plate; 12. cylinder; 13. test rod; 14. disc; 15. pressure sensor; 16. push plate; 17. first elastic member; 18. universal ball; 19. adsorption plate; 20. negative pressure pump; 21. sealing ring sleeve; 22. second elastic member; 23. third elastic member. DETAILED DESCRIPTION

[0072] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0073] Application scenario: In hot rolling and cold rolling coil workshops, lining plates are usually installed to protect production equipment from wear during strip processing. However, long-term interaction between the lining plate and the strip, including constant contact, relative movement, and especially frequent impact and friction, will accelerate the wear of the lining plate contact area. This wear phenomenon not only shortens the service life of the lining plate, forcing the lining plate to be replaced frequently, but may also have an adverse effect on the processing accuracy of the strip and the overall efficiency of the production line.

[0074] like Figures 1 to 9 A welding process for enhancing the wear resistance of a liner is shown, and the welding process comprises the following steps:

[0075] Step 1: Open a milling groove on the steel lining plate and put the wear-resistant alloy into the milling groove;

[0076] Step 2: Add welding material into the milling groove;

[0077] Step 3: After the laying is completed, the wear-resistant alloy is fixedly embedded into the milling groove of the liner by welding equipment to enhance the wear resistance of the liner;

[0078] Wherein, the welding device in step 3 of the above welding process comprises:

[0079] A base frame 1, wherein a driving assembly is arranged on the top of the base frame 1;

[0080] The support part is fixedly mounted on the base frame 1 and is used to clamp and support the liner;

[0081] A welding part 2, the welding part 2 is used to weld the wear-resistant alloy to the lining plate, and the driving assembly is used to drive the welding part 2 to move;

[0082] A pressing portion, connected to the welding portion 2, for pressing the wear-resistant alloy;

[0083] Positioning test section: after the wear-resistant alloy is laid inside the milling groove, the positioning test section is used to position the wear-resistant alloy and test the welding result after welding to confirm whether the welding result is qualified;

[0084] It should be understood that the lining plate to be welded is placed on the support part, and the wear-resistant alloy is placed in the milling groove. After the laying is completed, the welding part 2 is controlled to move to the specified position. When the welding part 2 moves downward first, it will also drive the positioning test part to move downward. The positioning test part and the top pressure part will first apply pressure to the tops of the two wear-resistant alloys to be welded to complete the positioning of the wear-resistant alloy, which is conducive to preventing the position of the wear-resistant alloy of the welding part 2 from shifting during the welding process, thereby affecting the welding effect;

[0085] After welding is completed, the positioning test part adsorbs the top of the wear-resistant alloy, so that the welding part 2 pulls the wear-resistant alloy upward through the positioning test part during the rising process. By applying a certain amount of pulling force to the wear-resistant alloy, it is helpful to test the bonding strength between the welded wear-resistant alloy and the liner, and ensure the stability of the welding part. Through this test step, the wear-resistant alloy can be effectively prevented from falling off due to loose welding during subsequent use, thereby enhancing the reliability and service life of the liner structure.

[0086] By welding wear-resistant alloys on the easily worn parts of the liner, the wear resistance of the liner is enhanced, the service life of the liner is increased, and the number of replacements is reduced.

[0087] It should be noted that the welding part 2 includes existing components such as a welding power source and a welding head, and the welding part 2 itself can move up and down and forward and backward to adapt to the welding trajectory. This is an existing mature technology and is involved in various fields, so it will not be disclosed in detail here.

[0088] It should be noted that welding powder can be used as welding material, and tungsten alloy can be used as wear-resistant alloy.

[0089] It needs to be explained again that the support part includes a support rod 3 , one end of the support rod 3 is fixedly connected to the base frame 1 , and the other end of the support rod 3 is fixedly connected to a placement plate 4 .

[0090] It should be noted again that the pressing part includes an elastic telescopic rod 5, a fixed part of the elastic telescopic rod 5 is fixedly connected to the welding part 2, and a pressing plate 6 is fixed to the telescopic end of the elastic telescopic rod 5;

[0091] It should be understood that the elastic telescopic rod 5 moves downward with the welding part 2, and the elastic telescopic rod 5 is compressed after the top pressure plate 6 contacts another wear-resistant alloy, thereby pressing the welding alloy downward through the top pressure plate 6 to prevent deviation.

[0092] It should be specially noted that the drive assembly includes existing components such as the drive motor, which is an existing mature technology and is used in various industries, and will not be disclosed in detail here.

[0093] As an embodiment of the present invention, the positioning test unit includes:

[0094] A first electric push rod 7, fixedly connected to the welding part 2;

[0095] The slide rail 8 is fixedly mounted on the telescopic end of the first electric push rod 7;

[0096] A rectangular slider 9 is slidably connected to the slide rail 8;

[0097] Two sets of positioning parts, the positioning parts include:

[0098] The second electric push rod 10 is fixedly connected to the top of the rectangular slide block 9;

[0099] A connecting plate 11 is fixedly connected to the telescopic end of the second electric push rod 10;

[0100] Cylinder 12, slidably connected to the rectangular slider 9;

[0101] A test rod 13 is vertically slidably connected to the inside of the cylinder 12;

[0102] The disc 14 is fixedly connected to the end of the test rod 13;

[0103] A plurality of pressure sensors 15 are fixedly mounted in a circumferential array on a side of the disc 14 away from the connecting plate 11;

[0104] A first elastic member 17 is fixedly mounted between the disc 14 and the inner top surface of the cylinder 12;

[0105] A negative pressure assembly is provided at the end of the test rod 13 away from the disc 14 and is used to position the wear-resistant alloy;

[0106] It should be understood that the first electric push rod 7 rises and falls synchronously with the welding part 2. When the first electric push rod 7 moves, it drives the rectangular slider 9 to move through the slide rail 8. The rectangular slider 9 drives the connecting plate 11 to move through the second electric push rod 10. The connecting plate 11 drives the test rod 13 to move through the cylinder 12. The test rod 13 drives the adsorption component to move and causes the adsorption component to press the wear-resistant alloy, thereby positioning the position of the wear-resistant alloy to prevent the position of the wear-resistant alloy from shifting during the welding process of the welding part 2.

[0107] During the welding process, the welding part 2 drives the first electric push rod 7 to move along the weld to complete the welding, and the rectangular slider 9 does not move during the welding process, and the slide rail 8 and the rectangular slider 9 will generate relative movement, thereby helping the negative pressure component to always apply downward pressure to the wear-resistant alloy;

[0108] After welding is completed and before the welding part 2 moves upward, the adsorption component is controlled to start first, and the wear-resistant alloy is adsorbed by the adsorption component, and then the upward movement of the welding part 2 will drive the first electric push rod 7 to move upward, and the first electric push rod 7 drives the rectangular slider 9 to move upward through the slide rail 8, and the rectangular slider 9 drives the connecting plate 11 to move upward through the second electric push rod 10, and the connecting plate 11 drives the first elastic member 17 to move upward through the cylinder 12, and the first elastic member 17 drives the disc 14 to move upward, and the disc 14 drives the test rod 13 to move upward. Because the adsorption component adsorbs the wear-resistant alloy at this time, the first elastic member 17 will be stretched accordingly during the upward movement of the cylinder 12, so that a relative displacement is generated between the disc 14 and the cylinder 12, and after pulling a certain distance, the pressure sensor 15 will contact the bottom wall of the cylinder 12, and the pressure sensor 15 will obtain pressure information at this time, and then the pressure information obtained by the pressure sensor 15 will help to accurately apply pressure, so as to test whether the wear-resistant alloy is firmly welded to the liner under the specified tensile force;

[0109] If the wear-resistant alloy is detached due to loose welding during the test, the adsorption plate 19 will still adsorb the wear-resistant alloy, thereby helping to prevent the wear-resistant alloy from flying off and causing damage or smashing other components.

[0110] It should be noted that the distance between the negative pressure assembly and the welding portion 2 can be adjusted by the first electric push rod 7, so that the negative pressure assembly is adjusted to a suitable position.

[0111] It needs to be explained again that the height of the negative pressure component from the wear-resistant alloy can be adjusted by the second electric push rod 10 to ensure that the negative pressure component can complete the adsorption and positioning of the wear-resistant alloy.

[0112] It should be further explained that the first elastic member 17 is specifically an elastic telescopic rod.

[0113] As an embodiment of the present invention, the negative pressure component includes:

[0114] A universal ball 18, rotatably connected to the end of the test rod 13;

[0115] The adsorption plate 19 is fixedly connected to the outer wall of the universal ball 18;

[0116] The negative pressure pump 20 is fixedly mounted on the adsorption plate 19, and the negative pressure pump 20 is fixedly connected to the adsorption plate 19 through an exhaust pipe;

[0117] In the specific working process, the adsorption disk 19 first contacts the surface of the object to be adsorbed to form a closed cavity, which is conducive to ensuring that the edge of the adsorption disk 19 is closely fitted with the surface of the wear-resistant alloy to create a sealed environment, and the negative pressure pump 20 is controlled to start, and the air inside the adsorption disk 19 is extracted through the exhaust pipe to reduce the air pressure inside the adsorption disk 19, forming a vacuum state or a state close to vacuum. Since the air pressure inside the adsorption disk 19 is reduced, while the external atmospheric pressure remains unchanged, an obvious pressure difference is formed. The external atmospheric pressure will press the adsorption disk 19 to the surface of the object, generating a strong adsorption force. Under the action of the pressure difference, the vacuum adsorption disk 19 firmly adsorbs the object underneath it. As long as the vacuum state is maintained, the adsorption disk 19 can maintain the adsorption state;

[0118] And because the adsorption plate 19 is rotatably connected to the test rod 13 through the universal ball 18, if the surface of the wear-resistant alloy is uneven, the adsorption plate 19 can automatically adjust the inclination angle according to the wear-resistant alloy to complete the adsorption of the wear-resistant alloy.

[0119] As an embodiment of the present invention, it also includes:

[0120] The sealing ring sleeve 21 is slidably connected to the outer wall of the adsorption plate 19;

[0121] A second elastic member 22, wherein the fixed portion of the second elastic member 22 is fixedly connected to the sealing sleeve, and the telescopic end of the second elastic member 22 is fixedly connected to the sealing ring sleeve 21;

[0122] It should be understood that in the above example, the wear-resistant alloy is adsorbed by the adsorption disk 19 to complete positioning and testing. However, if gas overflow occurs during the adsorption of the wear-resistant alloy by the adsorption disk 19, the firmness of the adsorption may be affected.

[0123] Therefore, during the movement of the adsorption plate 19 approaching the wear-resistant alloy, the sealing ring sleeve 21 first contacts the surface of the wear-resistant alloy, and under the obstruction of the wear-resistant alloy, it will cause a relative displacement between the sealing ring sleeve 21 and the adsorption plate 19, so that the sealing ring sleeve 21 will compress the second elastic element and move upward until the sealing ring sleeve 21 is flush with the surface of the wear-resistant alloy. At this time, the second elastic element will continue to apply a downward thrust to the upper end of the sealing ring sleeve 21. This force helps the sealing ring sleeve 21 to fit tightly against the joint between the adsorption plate 19 and the wear-resistant alloy, effectively forming a seal, which is beneficial to prevent air leakage due to insufficient sealing due to uneven connection between the adsorption plate 19 and the wear-resistant alloy, and helps to ensure the stability of the internal and external air pressure difference and maintain the adsorption capacity of the adsorption plate 19.

[0124] It should be specially noted that the sealing sleeve is made of a soft material, such as rubber, so as to help it better fit the wear-resistant alloy under the action of the second elastic member 22 .

[0125] It should be noted that the second elastic member 22 is specifically a second elastic telescopic rod or a first spring. This embodiment takes the second elastic telescopic rod as an example.

[0126] As an embodiment of the present invention, it also includes:

[0127] The third elastic member 23 is fixedly mounted on the bottom of the rectangular slider 9;

[0128] The push plate 16 is fixedly connected to the telescopic end of the third elastic member 23, and an inclined surface is provided on the push plate 16;

[0129] In the initial state, the push plate 16 maintains the suction plate 19 in an inclined state under the action of the third elastic member 23;

[0130] It should be understood that after the test is completed, the adsorption disk 19 will cancel the adsorption of the wear-resistant alloy. At this time, under the action of the first elastic member 17, the disc 14 will be pulled upward, and the disc 14 will return upward through the test rod 13. The test rod 13 drives the adsorption disk 19 to return upward. After the adsorption disk 19 contacts the push plate 16, the adsorption disk 19 will be pushed toward the welding gap under the action of the inclined surface of the push plate 16, and the negative pressure pump 20 will be started again, so that gas flow is generated inside the adsorption disk 19. On the one hand, the flowing airflow can quickly take away the heat from the weld, accelerate the cooling and solidification process of the weld, and help to form a more solid and smooth weld joint. On the other hand, under the action of the airflow, the adsorption disk 19 can capture and collect welding powder and other impurities splashed during the welding process, keep the welding area clean, reduce subsequent cleaning work, and also reduce the potential damage of spatter to operators and equipment.

[0131] It should be noted that the third elastic member 23 may specifically be a third elastic telescopic rod.

[0132] As an embodiment of the present invention, it also includes:

[0133] Multiple sets of monitoring devices are used to obtain particulate matter parameters.

[0134] It should be noted that there are many types of equipment for detecting particulate matter parameters, and the monitoring components can be selected from dust monitors, piezoelectric sensors, capacitive sensors, etc., which can be selected according to actual needs and will not be elaborated on.

[0135] As an embodiment of the present invention, it also includes:

[0136] A1: Obtain particulate matter parameters from multiple sets of monitoring devices, where the particulate matter parameters are the concentration of dust escape;

[0137] A2: After obtaining multiple sets of particle parameters, arrange them in ascending order according to the particle parameters;

[0138] A3: Based on the size of the particle parameters, control information is generated in sequence. Under the control of the control information, the welding part 2 is moved to the position with the highest particle parameter as the starting point in the next welding, and welding is performed in the order of the size of the particle parameter concentration, so that the current required in the welding range where the welding part 2 is located is reduced in sequence;

[0139] In actual use, when welding the gap between two adjacent wear-resistant alloys, welding powder will splash outwards during welding of the welding part 2 because welding powder will be filled in the gap in advance. If the welding powder splashes too quickly, it will affect the welding effect. In real welding operations, the degree of splashing of some welding powder can be managed and adjusted, especially when the splashing is mainly caused by the welding current being too strong, because the magnitude of the current directly affects the stability of the arc and the characteristics of the droplet transition, and excessive current will aggravate the irregular shedding of the droplet, thereby increasing the amount of splashing. Therefore, how to reasonably adjust the current according to the actual situation during the welding process to ensure that it is within an appropriate range is one of the key measures to reduce welding powder splashing and improve welding quality and efficiency.

[0140] In this embodiment, during the welding process, multiple groups of monitoring components are set to monitor and record the parameters of the welding powder concentration particles splashed during the welding process in different ranges, and arrange the welding powder concentration from high to low. When the highest concentration range is reached, after obtaining information feedback, when welding the next gap, the welding part 2 is controlled to move to the highest concentration range as the starting point to start welding;

[0141] In actual applications, three groups of monitoring components are set for the convenience of adjustment. For the convenience of understanding, the following examples are given, with a, b, and c representing the three groups of monitoring components. Assuming that the values ​​monitored by a, b, and c are 3, 5, and 4 respectively, there will be many situations in the arrangement. At this time, find out the positions of the maximum and minimum values, put the maximum value in the first place, and the minimum value in the last place, so that the welding order of welding part 2 is b→c→a. If the values ​​of a, b, and c are 5, 3, and 4 respectively, then the welding order of welding part 2 is a→c→b. Through this adjustment method, the current value is reduced in sequence when adjusting. On the one hand, the strategy of gradually decreasing the current helps to quickly find the most suitable welding parameters and achieve precise control; on the other hand, this progressive current adjustment method helps to reduce the welding powder splash caused by excessively high current settings when welding specific welds.

[0142] As an embodiment of the present invention, step A1 includes:

[0143] The gap range between two adjacent wear-resistant alloys to be welded is divided into multiple welding ranges with equal distances, and a monitoring device is set between each welding range;

[0144] When the welding part 2 is welding the gap, the amount of dust escaping from the gap is monitored by the monitoring device.

[0145] As an embodiment of the present invention, step A3 includes:

[0146] Set a threshold in advance;

[0147] The obtained particle parameters are compared with the threshold value;

[0148] If it is greater than the threshold, a control signal is sent to reduce the current value used in the area where the welding operation is currently being performed to reduce the escape of particulate matter;

[0149] If it is less than or equal to the threshold, no adjustment is made.

[0150] It should be understood that before welding, the parameters of the welding portion 2 will be adjusted so that the welding portion 2 is at a suitable parameter and the concentration of weld powder released during welding is within a reasonable range. The weld powder concentration within this range is collectively referred to as a threshold.

[0151] As an embodiment of the present invention, it also includes:

[0152] Record the reduced current value within each welding range;

[0153] Binding the reduced current value of each welding range to the particle parameter of the corresponding welding range to obtain a binding value;

[0154] When welding the next gap, the current value is automatically adjusted to the binding value after obtaining the particle parameters within the same range.

[0155] It should be understood that, assuming that the current value used in the initial welding is D, and the current reduced within the welding range is F, the actual current value is DF. At this time, the actual current value DF is bound to the particle parameter set at the corresponding position to obtain a bound value. Then, in the subsequent welding process, if the particle parameter in the next welding range is in the same value range as the previous particle parameter, the current is directly controlled to be reduced to the actual current value DF, so as to facilitate the rapid adjustment of the current value and reduce the splash of welding powder.

[0156] Working principle of the present invention:

[0157] Place the lining plate to be welded on the support part, and place the wear-resistant alloy into the milling groove. After the laying is completed, control the welding part 2 to move to the specified position. When the welding part 2 moves downward first, it will also drive the positioning test part to move downward. The positioning test part and the top pressure part will first apply pressure to the top of the two wear-resistant alloys to be welded to complete the positioning of the wear-resistant alloy, which is helpful to prevent the position of the wear-resistant alloy of the welding part 2 from shifting during the welding process, thereby affecting the welding effect;

[0158] After welding is completed, the positioning test part adsorbs the top of the wear-resistant alloy, so that the welding part 2 pulls the wear-resistant alloy upward through the positioning test part during the rising process. By applying a certain amount of pulling force to the wear-resistant alloy, it is helpful to test the bonding strength between the welded wear-resistant alloy and the liner, and ensure the stability of the welding part. Through this test step, the wear-resistant alloy can be effectively prevented from falling off due to loose welding during subsequent use, thereby enhancing the reliability and service life of the liner structure.

[0159] By welding wear-resistant alloys on the easily worn parts of the liner, the wear resistance of the liner is enhanced, the service life of the liner is increased, and the number of replacements is reduced.

[0160] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions only describe the principles of the present invention. The present invention may have various changes and improvements without departing from the spirit and scope of the present invention, and these changes and improvements fall within the scope of the present invention to be protected, and the scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A welding process for enhancing the wear resistance of a liner, characterized in that: The welding process includes the following steps: Step 1: Open a milling groove on the steel lining plate and put the wear-resistant alloy into the milling groove; Step 2: Add welding material into the milling groove; Step 3: After the laying is completed, the wear-resistant alloy is fixedly embedded into the milling groove of the liner by welding equipment to enhance the wear resistance of the liner; Wherein, the welding device in step 3 of the above welding process comprises: A base frame (1), wherein a driving assembly is arranged on the top of the base frame (1); A support portion, fixedly mounted on the base frame (1), and used for clamping and supporting the lining plate; A welding part (2), the welding part (2) being used to weld the wear-resistant alloy to the lining plate, and the driving assembly being used to drive the welding part (2) to move; A pressing portion, connected to the welding portion (2), and used for pressing the wear-resistant alloy; A positioning test part, which is used to position the wear-resistant alloy after the wear-resistant alloy is laid inside the milling groove, and to test the welding result after welding to confirm whether the welding result is qualified; Also includes: Multiple sets of monitoring devices for obtaining particulate matter parameters; Also includes: A1: Obtaining particulate matter parameters from multiple groups of monitoring devices, wherein the particulate matter parameters are the concentration of dust escape; A2: After obtaining multiple sets of particle parameters, arrange them in ascending order according to the particle parameters; A3: Control information is generated in sequence based on the size of the particle parameters. Under the control of the control information, the welding portion (2) is moved to the position with the highest particle parameter as the starting point in the next welding, and welding is performed in the order of the size of the particle parameter concentration, so that the current required to be used in the welding range where the welding portion (2) is located is reduced in sequence.

2. A welding process for enhancing the wear resistance of a liner according to claim 1, characterized in that: The positioning test unit comprises: A first electric push rod (7) fixedly connected to the welding portion (2); A slide rail (8) fixedly mounted on the telescopic end of the first electric push rod (7); A rectangular sliding block (9) slidably connected to the sliding rail (8); Two sets of positioning members, the positioning members comprising: A second electric push rod (10) fixedly connected to the top of the rectangular sliding block (9); A connecting plate (11) fixedly connected to the telescopic end of the second electric push rod (10); A cylinder (12) slidably connected to the rectangular slider (9); A test rod (13) vertically slidably connected to the interior of the cylinder (12); A disc (14) fixedly connected to the end of the test rod (13); A plurality of pressure sensors (15) are fixedly mounted in a circumferential array on a side of the disc (14) away from the connecting plate (11); A first elastic member (17) is fixedly mounted between the disc (14) and the inner top surface of the cylinder (12); A negative pressure assembly is arranged at an end of the test rod (13) away from the disc (14) and is used to position the wear-resistant alloy.

3. A welding process for enhancing the wear resistance of a liner according to claim 2, characterized in that: The negative pressure component comprises: A universal ball (18) rotatably connected to the end of the test rod (13); A suction plate (19) fixedly connected to the outer wall of the universal ball (18); The negative pressure pump (20) is fixedly mounted on the adsorption plate (19), and the negative pressure pump (20) is fixedly connected to the adsorption plate (19) via an exhaust pipe.

4. A welding process for enhancing the wear resistance of a liner according to claim 3, characterized in that: Also includes: A sealing ring sleeve (21) slidably connected to the outer wall of the adsorption plate (19); A second elastic member (22), wherein a fixed portion of the second elastic member (22) is fixedly connected to the sealing sleeve, and a telescopic end of the second elastic member (22) is fixedly connected to the sealing ring sleeve (21).

5. A welding process for enhancing the wear resistance of a liner according to claim 3, characterized in that: Also includes: A third elastic member (23) is fixedly mounted on the bottom of the rectangular sliding block (9); A push plate (16) is fixedly connected to the telescopic end of the third elastic member (23), and an inclined surface is provided on the push plate (16); Wherein, in the initial state, the push plate (16) maintains the adsorption disk (19) in an inclined state under the action of the third elastic member (23).

6. A welding process for enhancing the wear resistance of a liner according to claim 1, characterized in that: Step A1 includes: The gap range between two adjacent wear-resistant alloys to be welded is divided into multiple welding ranges with equal distances, and a monitoring device is set between each welding range; When the welding portion (2) is welding the gap, the amount of dust escaping from the gap is monitored by a monitoring device.

7. A welding process for enhancing the wear resistance of a liner according to claim 6, characterized in that: Step A3 includes: Set a threshold in advance; The obtained particle parameters are compared with the threshold value; If it is greater than the threshold, a control signal is sent to reduce the current value used in the area where the welding operation is currently being performed to reduce the escape of particulate matter; If it is less than or equal to the threshold, no adjustment is made.

8. A welding process for enhancing the wear resistance of a liner according to claim 7, characterized in that: Also includes: Record the reduced current value within each welding range; Binding the reduced current value of each welding range to the particle parameter of the corresponding welding range to obtain a binding value; When welding the next gap, the current value is automatically adjusted to the binding value after obtaining the particle parameters within the same range.

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