High-temperature corrosion-resistant nickel-based alloy bar and preparation process thereof

Abstract

The invention provides a high-temperature corrosion-resistant nickel-based alloy bar and a preparation process thereof, and relates to the technical field of preparation devices.The high-temperature corrosion-resistant nickel-based alloy bar is characterized in that a smelting furnace is assembled on a supporting column and used for smelting alloy, a crawling ladder is installed on the supporting column and used for a worker to check the smelting furnace, and a high-frequency heater is assembled on the smelting furnace and used for heating the alloy; a furnace end used for discharging is arranged at the bottom of the smelting furnace, a motor used for driving a driving assembly is assembled at the bottom of the machine tool, and the driving assembly is used for bearing alloy bars machined by the furnace end and transferring the alloy bars. According to the invention, the driving assembly adopts the collaborative design of the eccentric shaft, the sliding block and the positioning block, so that the turntable can be driven to realize accurate interval rotation, the mold holes in the turntable can orderly receive molten alloy flowing out of the furnace end, sufficient natural cooling time is provided for the alloy bar in the interval rotation process, no cooling equipment needs to be additionally arranged, and the production efficiency is improved. And the bar forming size precision is ensured.

Description

Technical Field

[0001] This invention relates to the field of preparation equipment technology, and in particular to high-temperature corrosion-resistant nickel-based alloy rods and their preparation process. Background Technology

[0002] High-temperature corrosion-resistant nickel-based alloy bars are widely used in high-end equipment manufacturing fields such as aerospace, petrochemical, and nuclear industries due to their excellent high-temperature resistance, corrosion resistance, and mechanical strength.

[0003] As related industries continue to raise their requirements for equipment performance, higher standards are being set for the precision, performance stability, and production efficiency of nickel-based alloy rod preparation. However, existing nickel-based alloy rod preparation equipment still has shortcomings in practical applications: the transfer mechanism mostly adopts a continuous rotation design, resulting in insufficient cooling time for the alloy rod during transfer, making it prone to thermal deformation; the rotational precision is also poor, leading to deviations in the rod forming dimensions; the linkage between various processes is poor; the degree of automation is low; and frequent manual intervention and control are required, which not only increases labor costs but also makes it difficult to ensure the consistency of product quality. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing high-temperature corrosion-resistant nickel-based alloy rods and their preparation process.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a high-temperature corrosion-resistant nickel-based alloy bar and its preparation process, including a machine tool. A support column is installed on one side of the machine tool, and a melting furnace is mounted on the support column for melting the alloy. A ladder is installed on the support column for workers to inspect the melting furnace. A high-frequency heater is mounted on the melting furnace for heating the alloy. A furnace head for discharging material is provided at the bottom of the melting furnace, and a heating wire for preheating the furnace head is provided on the furnace head. A motor is mounted at the bottom of the machine tool for driving a drive assembly. The drive assembly is used to carry the alloy bar processed by the furnace head and to transfer the alloy bar. A mounting column is installed on the other side of the machine tool, and an oiling assembly for adding lubricating oil to the shaft of the drive assembly and a grinding assembly for grinding the transferred alloy bar are mounted on the mounting column. A lifting assembly is provided on the machine tool for detaching the transferred alloy bar from the drive assembly. A control panel for controlling the entire device is also provided on the support column.

[0006] Preferably, the drive assembly includes a rotating rod, the output shaft of the motor is fixedly connected to the rotating rod via a coupling, a limiting block is sleeved on the rotating rod, a disc is fixedly connected to the rotating rod, an eccentric shaft is mounted on the disc, a connecting plate is fixedly connected to the end of the eccentric shaft away from the disc, a rotating shaft is rotatably sleeved on the connecting plate, a rotating plate is sleeved on the rotating shaft, a slider is slidably connected to the rotating plate, connecting rods are fixedly connected to both sides of the connecting plate, one connecting rod slides through the limiting rod and is fixedly connected to the slider, and a positioning block is mounted on the other connecting rod, the limiting block has a sliding groove and is slidably connected to the positioning block.

[0007] Preferably, a turntable is fixedly connected to the end of the rotating shaft away from the connecting plate. A plurality of mold holes are formed on the outer surface of the turntable, and a plurality of limiting grooves are formed on the outer circumferential surface of the turntable. A bearing plate is slidably connected in the mold holes.

[0008] Preferably, the outer surface of the rotating rod is fixedly connected to an extrusion piece for driving the ejection assembly to eject the alloy rod from the die hole, and the outer surface of one end of the rotating shaft that passes through the turntable is fixedly connected to a protrusion for driving the lubrication assembly to add lubricating oil.

[0009] Preferably, the extrusion member includes a mounting plate and a protrusion, the mounting plate being mounted on the rotating rod, and the protrusion being mounted on the mounting plate.

[0010] The drive motor rotates, which in turn drives the rotating rod to rotate. The rotating rod then drives the eccentric shaft on the disc to rotate, which in turn drives the connecting disc to move eccentrically. This eccentric movement of the connecting disc causes two connecting rods to move. One connecting rod drives a slider to slide on the rotating plate, allowing the slider to insert into the groove of the turntable. Simultaneously, the slider's movement also causes the rotating plate to rotate on the outer surface of the rotating shaft. As the slider inserts into the groove, the rotation of the rotating plate on the outer surface of the rotating shaft causes the turntable to rotate. As the connecting disc continues its eccentric movement, one connecting rod drives the slider to disengage from the groove of the turntable. At this point, the other connecting rod drives a positioning block to slide into the groove of the limiting block. This causes the turntable to rotate a certain angle as the slider drives it, and then the positioning block limits the turntable's continued rotation. This ensures that the slider can only rotate a certain angle each time it drives the turntable, achieving the effect of intermittent rotation of the turntable. The mold hole rotates sequentially to the bottom of the furnace head as the turntable rotates intermittently, receiving the molten alloy bars. The intermittent rotation of the turntable also helps cool the alloy bars.

[0011] Preferably, the refueling assembly includes an oil tank mounted on a mounting column, a piston rod slidably connected to the inner wall of the oil tank, a spring sleeved at one end of the piston rod located outside the oil tank with its two ends respectively connected to the piston rod and the oil tank, an oil filling port for adding lubricating oil provided on the outer surface of the oil tank, a delivery pipe connected to the top of the oil tank, and a solenoid valve for controlling the addition and flow rate provided on the delivery pipe.

[0012] Preferably, a crossbar slides through the mounting column, and one end of the crossbar and the piston rod are connected to a vertical plate. A conical block, pressed by a protruding rod, is connected to the crossbar. When the conical block is pressed by the protruding rod driven by the rotating shaft, the crossbar slides on the mounting column due to the pressure of the protruding rod. The sliding of the crossbar causes the piston rod connected to the vertical plate to slide, at which point the spring is stretched. When the protruding rod disengages from the conical block, the spring's rebound force causes the piston rod to slide along the inner wall of the oil tank, squeezing the lubricating oil in the oil tank and delivering it to the vicinity of the rotating shaft through the delivery pipe for lubrication. This process is repeated so that the protruding rod presses against the conical block, allowing for intermittent addition of lubricating oil.

[0013] Preferably, the grinding assembly is mounted on the mounting post, and the grinding assembly includes a screw, the outer surface of which is fixedly connected to a connector by means of a nut.

[0014] Preferably, the connector includes an assembly plate and a sleeve. The assembly plate is mounted on the screw, and the sleeve is mounted on the assembly plate. A sliding rod is slidably connected to the inner wall of the sleeve. Limiting holes are provided on both the sleeve and the sliding rod. A limiting pin is provided in the limiting hole to control the sliding distance of the sliding rod in the sleeve. A grinding machine for grinding alloy rods is fixedly connected to the bottom end of the sliding rod. When the turntable rotates intermittently, it moves the alloy rod in the mold hole to the grinding machine for grinding, thus saving additional grinding time.

[0015] Preferably, the lifting assembly includes a mounting frame installed on the machine tool. One end of the mounting frame is connected to a bracket, and a top rod is rotatably connected to the bracket via a rotating rod. A guide rod slides through the inner wall of the mounting frame. A protrusion is fixedly connected to the lower end of the guide rod, and a connecting plate is fixedly connected to the upper end of the guide rod. The connecting plate is fixedly connected to the other end of the top rod. When the mounting plate rotates with the rotating rod to the vicinity of the protrusion, the protrusion on the mounting plate presses against the protrusion. The protrusion is pressed, causing the guide rod to slide on the inner wall of the mounting frame. The movement of the guide rod causes the connecting plate to move, and the connecting plate causes one end of the top rod to move. The top rod is limited by the rotating rod, so the top rod rotates around the outer surface of the rotating rod. The other end of the top rod lifts the bearing plate, causing the alloy rod on the bearing plate to slide within the mold hole. At this time, the alloy rod is driven by the bearing plate to detach from the mold hole, and the ejected alloy mold falls into the collection frame and is collected.

[0016] Preferably, the high-temperature corrosion-resistant nickel-based alloy rod is prepared using any one of the high-temperature corrosion-resistant nickel-based alloy rod preparation processes described above, specifically with Ni: 50-55%, Cr: 17-21%, Mo: 2.8-3.3%, Nb: 4.75-5.5%, Al: 0.2-0.8%, Ti: 0.65-1.15%, C: ≤0.08%, and Fe: balance.

[0017] Compared with the prior art, the advantages and positive effects of the present invention are as follows: 1. In this invention, by assembling a high-frequency heater around the outer wall of the smelting furnace, the principle of electromagnetic induction heating is used to achieve uniform heat transfer, ensuring that the nickel-based alloy raw materials are fully melted, effectively avoiding component segregation, and significantly improving the high-temperature corrosion resistance and component uniformity of the alloy bars. At the same time, the heating wires wrapped around the outer periphery of the furnace head can preheat the furnace head, preventing the molten alloy from cooling and solidifying at the discharge port, ensuring smooth discharge and ensuring production continuity.

[0018] 2. In this invention, the drive component adopts a collaborative design of eccentric shaft, slider and positioning block, which can drive the turntable to achieve precise interval rotation, so that the mold hole on the turntable can orderly receive the molten alloy flowing out of the furnace head, and provide sufficient natural cooling time for the alloy bar during the interval rotation, without the need for additional cooling equipment, which reduces the risk of thermal deformation of the bar, saves energy consumption, and ensures the dimensional accuracy of the bar forming.

[0019] 3. In this invention, the lubrication component achieves intermittent automatic addition of lubricating oil through the linkage between the convex rod on the rotating shaft and the conical block, without the need for manual intervention. Moreover, the timing of lubricating oil addition is precisely matched with the rotation rhythm of the transmission components, which not only ensures the lubrication effect of key transmission parts, reduces component wear, and extends the service life of equipment, but also avoids excessive waste of lubricating oil and reduces production and maintenance costs.

[0020] 4. In this invention, the grinding component is integrated on the mounting column and seamlessly connected with the transfer process. When the alloy bar is transferred to the ground machine by the turntable, it can be directly ground to remove impurities such as burrs and oxide scale. There is no need to transfer it to a special grinding equipment separately, which effectively shortens the production cycle and reduces the risk of scratches on the surface of the bar during the transfer process. At the same time, the height of the grinding machine and the grinding interval can be flexibly adjusted by adjusting the nut and the limit pin to adapt to the grinding needs of alloy bars of different specifications, which is highly versatile.

[0021] 5. In this invention, the lifting component and the driving component are linked by the protrusion on the mounting plate. When the polished alloy rod is transferred to the designated position, it can automatically complete the lifting, demolding and collection. No manual operation is required throughout the process, which reduces the error caused by manual intervention and further improves the degree of production automation. In addition, the arc-shaped contact head design at the end of the lifting rod can avoid damage to the bearing plate and the alloy rod, ensuring the integrity of the product appearance. Attached Figure Description

[0022] Figure 1 A three-dimensional structural schematic diagram of the high-temperature corrosion-resistant nickel-based alloy rod and its preparation process proposed in this invention; Figure 2 This is a schematic diagram of the high-temperature corrosion-resistant nickel-based alloy rod and its preparation process proposed in this invention from another perspective; Figure 3 This is a schematic diagram of the refueling assembly for the high-temperature corrosion-resistant nickel-based alloy rod and its preparation process proposed in this invention. Figure 4 This is a schematic diagram of the refueling component for the high-temperature corrosion-resistant nickel-based alloy rod and its preparation process proposed in this invention from another angle. Figure 5 This is a schematic diagram of the drive component for the high-temperature corrosion-resistant nickel-based alloy rod and its preparation process proposed in this invention. Figure 6 This is a bottom view of the drive assembly for the high-temperature corrosion-resistant nickel-based alloy rod and its preparation process proposed in this invention. Figure 7 This is a schematic diagram of the lifting assembly for the high-temperature corrosion-resistant nickel-based alloy rod and its preparation process proposed in this invention.

[0023] Legend: 1. Machine tool; 2. Support column; 21. Ladder; 3. Smelting furnace; 4. High-frequency heater; 5. Furnace head; 51. Heating wire; 6. Mounting column; 7. Oil filling assembly; 71. Oil tank; 711. Oil filling port; 72. Crossbar; 73. Piston rod; 74. Vertical plate; 75. Spring; 76. Conical block; 77. Conveying pipe; 78. Solenoid valve; 8. Motor; 9. Drive assembly; 91. Rotating rod; 92. Limiting block; 93. Disc; 94. Eccentric shaft; 95. Connecting disc; 96. Rotating shaft; 97. Rotating plate; 971. Slider; 98. Positioning 99. Block; 910. Connecting rod; 911. Limiting rod; 912. Turntable; 913. Limiting groove; 914. Mold hole; 915. Bearing plate; 916. Protruding rod; 917. Mounting plate; 10. Protrusion; 10. Lifting assembly; 101. Mounting bracket; 102. Guide rod; 103. Protrusion; 104. Connecting plate; 105. Push rod; 106. Bracket; 11. Grinding assembly; 111. Screw; 112. Nut; 113. Connector; 114. Slide rod; 115. Limiting pin; 116. Limiting hole; 117. Grinding machine; 12. Control panel. Detailed Implementation

[0024] like Figure 1-7As shown, this invention provides a high-temperature corrosion-resistant nickel-based alloy bar and its preparation process. The high-temperature corrosion-resistant nickel-based alloy bar preparation device includes a machine tool 1, which is made of high-strength cast iron and has a stable overall structure, providing a stable mounting foundation for each component. A support column 2 is fastened to one side of the machine tool 1 by multiple high-strength bolts. The support column 2 is made of thick-walled alloy steel and has sufficient load-bearing capacity. A melting furnace 3 is mounted on the support column 2. The melting furnace 3 has a high-temperature resistant ceramic inner liner, capable of withstanding the high-temperature environment during nickel-based alloy melting. The top of the melting furnace 3 has a feed inlet with a sealed cover, which can reduce heat loss and impurity entry during melting. A ladder 21 is welded to the side of the support column 2. The surface of the ladder 21 has an anti-slip texture, and protective handrails are provided on both sides, facilitating safe climbing by workers to the melting furnace 3 to check the equipment's operation and the internal melting process. The outer wall of the smelting furnace 3 is equipped with a high-frequency heater 4. The high-frequency heater 4 uses electromagnetic induction heating, which can uniformly transfer heat into the furnace to ensure that the nickel-based alloy raw material is fully melted, with high heating efficiency and controllable temperature. A furnace head 5 is fixedly installed at the discharge port at the bottom of the smelting furnace 3. The furnace head 5 is made of heat-resistant alloy material, and heating wire 51 is wound around its outer circumference. The heating wire 51 is made of high-temperature resistant alloy material. After being energized, it can preheat the furnace head 5 to prevent the molten alloy from cooling and solidifying at the furnace head 5, which would cause discharge blockage. A motor 8 is fixedly installed at the bottom of the machine tool 1 by a welded bracket. The motor 8 is a servo motor, which has the characteristics of stable speed and precise adjustment. The output shaft of the motor 8 is fixedly connected to the rotating rod 91 of the drive assembly 9 through a coupling, providing stable power for the entire transfer process. A mounting column 6 is fixedly installed on the other side of the machine tool 1 by bolts. The mounting column 6 has a similar structure to the support column 2 and also has high-strength support performance. The mounting column 6 is equipped with an oiling component 7 and a grinding component 11 from top to bottom. The machine tool 1 is equipped with a lifting component 10 at the position below the turntable 911. The support column 2 is fixedly mounted on the side by a bracket. The control panel 12 is connected to various electrical components through high-temperature resistant wires. The wires are covered with protective tubes to prevent damage to the lines caused by high-temperature environment. The operator can intuitively operate the equipment, set various operating parameters and monitor the working status of the equipment through the control panel 12.

[0025] The rotating rod 91 of the drive assembly 9 is made of high-strength alloy steel, possessing excellent torque resistance. The rotating rod 91 is horizontally arranged, with both ends supported on the machine tool 1 by bearing seats, ensuring smooth rotation. A limit block 92 is fixed to the rotating rod 91 via a key connection and locking nut. The limit block 92 has a square structure and provides limiting and guiding for subsequent components. A disc 93 is welded to the middle of the rotating rod 91, perpendicular to the rotating rod 91. An eccentric shaft 94 is vertically welded to the edge of the disc 93, and reinforcing ribs are provided at the connection between the eccentric shaft 94 and the disc 93 to enhance structural strength. A connecting disc 95 is welded to the end of the eccentric shaft 94 furthest from the disc 93. The connecting disc 95 is a circular steel plate with a through hole in its center. The rotating shaft 96 passes through this through hole and is rotatably connected to the connecting disc 95 via a deep groove ball bearing, ensuring flexible rotation of the rotating shaft 96. A rotating plate 97 is fitted onto the rotating shaft 96. The rotating plate 97 is a rectangular steel plate with a slide rail on its surface. A slider 971 is slidably connected to the slide rail via a slider seat. The slider 971 is made of hard alloy with a smooth surface to reduce wear during sliding. A connecting rod 99 is welded to each side of the connecting plate 95. The connecting rod 99 is a stainless steel round rod with high strength and corrosion resistance. One of the connecting rods 99 passes through the through hole of the limiting rod 910 and is welded to the slider 971. The limiting rod 910 is welded to the machine tool 1 via a bracket. The inner wall of its through hole is smoothed to provide stable guidance for the connecting rod 99. A positioning block 98 is welded to the end of the other connecting rod 99. The positioning block 98 has an arc-shaped structure that matches the limiting groove 912 on the outer periphery of the turntable 911. The limiting block 92 has a sliding groove that slides with the positioning block 98. The inner wall of the sliding groove is coated with grease to ensure smooth sliding of the positioning block 98. A turntable 911 is welded to the end of the rotating shaft 96 away from the connecting plate 95. The turntable 911 is made of heat-resistant alloy steel and can withstand the high temperature of the alloy rod. Several mold holes 913 are evenly distributed along the edge of the turntable 911. The inner wall of the mold holes 913 is finely polished to reduce the resistance when the alloy rod is demolded. A bearing plate 914 is slidably connected in each mold hole 913. The bearing plate 914 is made of high-temperature resistant graphite material, which has good heat resistance and anti-sticking properties to prevent adhesion to the molten alloy. Several limiting grooves 912 are opened on the outer circumference of the turntable 911. The limiting grooves 912 correspond one-to-one with the mold holes 913, and their shapes are adapted to the slider 971 and the positioning block 98 to ensure accurate positioning. A mounting plate 916 is fixed to the rotating rod 91 by bolts and positioning pins. The mounting plate 916 is a square steel plate with protrusions 917 welded to its side. The surface of the protrusions 917 is rounded to reduce the pressure and wear of subsequent components. A protruding rod 915 is welded to the outer wall of one end of the rotating shaft 96 that passes through the turntable 911. The protruding rod 915 is cylindrical and the end is also rounded. The number of protruding rods 915 matches the number of mold holes 913, and the position corresponds to the limiting groove 912.

[0026] The oil tank 71 of the refueling assembly 7 is welded to the upper part of the mounting column 6. The oil tank 71 is made of stainless steel, providing excellent sealing and corrosion resistance. The top of the oil tank 71 has a refueling port 711 with a threaded sealing cap. A sealing ring is installed inside the sealing cap to prevent lubricating oil leakage and dust ingress. The bottom of the oil tank 71 is connected to a delivery pipe 77 via a connector. The delivery pipe 77 is made of high-temperature resistant rubber, adaptable to the temperature of the equipment's operating environment. A solenoid valve 78 is installed on the delivery pipe 77, electrically connected to the control panel 12, allowing precise control of the lubricating oil's on / off state and flow rate. A piston rod 73 is slidably connected to the inner wall of the oil tank 71. The piston rod 73 is made of chrome-plated carbon steel with a smooth surface, reducing sliding friction with the inner wall of the oil tank 71 and providing excellent corrosion resistance. A spring 75 is fitted onto the portion of the piston rod 73 outside the oil tank 71. The spring 75 is a compression spring with stable elastic restoring force. One end of the spring 75 is welded to the shoulder of the piston rod 73, and the other end is welded to the outer wall of the oil tank 71. A through hole is provided on the mounting column 6, and a linear bearing is installed in the through hole. The crossbar 72 passes through the linear bearing and is slidably connected to the mounting column 6 to ensure smooth sliding of the crossbar 72. A vertical plate 74 is welded to one end of the crossbar 72. The vertical plate 74 is a rectangular steel plate, and one side of it is welded and fixed to the end of the piston rod 73 to ensure effective force transmission. A conical block 76 is welded to the other end of the crossbar 72. The angle of the bevel of the conical block 76 is designed to match the pressing stroke of the convex rod 915, ensuring that the convex rod 915 can effectively push the conical block 76 to move when it rotates.

[0027] The screw 111 of the grinding assembly 11 is vertically welded to the mounting post 6. The screw 111 is made of high-strength carbon steel and has high-precision threads machined on its surface. A nut 112 is threaded onto the screw 111. Above the nut 112 is an assembly plate fitted onto the screw 111. The assembly plate is a square steel plate with oblong holes for easy fine-tuning of its position. A sleeve is welded below the assembly plate. The sleeve is a round steel tube, perpendicular to the assembly plate, and a slide rod 114 is inserted inside the sleeve. The slide rod 114 is made of alloy steel, which has high strength and can withstand the pressure during grinding. Several limiting holes 116 are correspondingly provided on the sleeve and the slide rod 114. The limiting holes 116 are evenly spaced, and the corresponding limiting hole 116 can be selected according to different grinding height requirements. A limiting pin 115 is inserted into the limiting hole 116. The limiting pin 115 is made of spring steel, which has good elasticity and wear resistance, and can stably fix the extension length of the slide rod 114. A grinding machine 117 is fixedly installed at the bottom of the slide rod 114 by bolts. The grinding machine 117 is a grinding wheel grinding machine. Its grinding head can be replaced according to actual needs. The grinding head is made of diamond grinding wheel material, which has high grinding efficiency and durability, and can effectively remove burrs and impurities from the surface of alloy rods.

[0028] The mounting bracket 101 of the lifting assembly 10 is welded from channel steel, providing a stable structure. The mounting bracket 101 is bolted to the machine tool 1 and located below the turntable 911. A bracket 106 is welded to one end of the mounting bracket 101. The bracket 106 has a U-shaped structure with through holes on both side plates. The rotating rod passes through these through holes and engages with the bracket 106 with a clearance fit, ensuring flexible rotation. A top rod 105 is fitted onto the rotating rod. The top rod 105 is made of high-strength alloy steel, providing excellent bending resistance. A through hole is located on the top plate of the mounting bracket 101, within which a copper sleeve is installed. The guide rod 102 passes through the copper sleeve and slides through the mounting bracket 101, reducing wear during sliding. A protrusion 103 is welded to the bottom end of the guide rod 102. The protrusion 103 is made of hard alloy, providing good extrusion resistance, and its lower surface matches the protrusion 917 on the mounting plate 916. A connecting plate 104 is welded to the top of the guide rod 102. The connecting plate 104 is a rectangular steel plate, and one side of it is fixedly connected to one end of the push rod 105 by bolts for easy disassembly and maintenance. The other end of the push rod 105 extends to the bottom of the mold hole 913 of the turntable 911, corresponding to the position of the support plate 914. This end of the push rod 105 is provided with an arc-shaped contact head to increase the contact area with the support plate 914 and avoid damage to the support plate 914. A collection frame is placed on the machine tool 1 below the lifting assembly 10. The collection frame is made of stainless steel to facilitate the collection of alloy bars that have detached from the mold hole 913 and to facilitate subsequent cleaning.

[0029] All key transmission components of the device are equipped with protective covers made of steel plates, which are bolted to their respective positions to prevent foreign objects from entering the transmission mechanism and to avoid accidental contact and injury to personnel. The side of the smelting furnace 3 is equipped with an observation window made of high-temperature resistant quartz glass, allowing personnel to monitor the smelting status of the alloy inside the furnace in real time and adjust heating parameters accordingly.

[0030] Working Principle: First, the operator adds nickel-based alloy raw material through the feed inlet at the top of the melting furnace 3, then seals the furnace tightly. Next, the operator starts the device via the control panel 12, setting parameters such as the heating temperature of the high-frequency heater 4, the speed of the motor 8, the lubrication interval of the lubrication assembly 7, and the grinding time of the grinder 117. After the high-frequency heater 4 starts, it induces eddy currents in the nickel-based alloy raw material within the melting furnace 3 through electromagnetic induction. The raw material rapidly heats up and gradually melts. During the heating process, the operator can observe the melting status through the observation window of the melting furnace 3 and fine-tune the heating power via the control panel 12 to ensure the raw material is fully melted. Simultaneously, the heating wire 51 on the furnace head 5 is energized to preheat the furnace head 5, maintaining it at a certain temperature to prevent the molten alloy from cooling and solidifying at the furnace head 5 outlet.

[0031] After the motor 8 starts, its output shaft drives the rotating rod 91 to rotate at a constant speed through the coupling. During the rotation of the rotating rod 91, it synchronously drives the disc 93 and the eccentric shaft 94 on it to rotate. The eccentric shaft 94 moves in a circular motion under the drive of the disc 93, which in turn drives the connecting disc 95 to make an eccentric motion. When the connecting disc 95 makes an eccentric motion, the connecting rods 99 on both sides of it move synchronously. One of the connecting rods 99 drives the slider 971 to slide along the slide rail on the rotating plate 97. When the slider 971 slides to the limiting groove 912 of the rotating disc 911, the slider 971 inserts into the limiting groove 912. At the same time, the sliding of the slider 971 causes the rotating plate 97 to rotate around the outer surface of the rotating shaft 96. Since the slider 971 is engaged with the limiting groove 912 of the rotating disc 911 at this time, the rotation of the rotating plate 97 will drive the rotating disc 911 to rotate synchronously. As the connecting disc 95 continues its eccentric motion, the connecting rod 99 causes the slider 971 to gradually disengage from the limiting groove 912 of the turntable 911. Simultaneously, another connecting rod 99 causes the positioning block 98 to slide along the sliding groove on the limiting block 92. When the slider 971 completely disengages from the limiting groove 912, the positioning block 98 precisely inserts into the adjacent limiting groove 912, restricting the turntable 911 from continuing to rotate, thus achieving the intermittent rotation of the turntable 911. The angle of each rotation of the turntable 911 is consistent with the spacing of the mold holes 913, ensuring that the mold holes 913 on the turntable 911 can move precisely and sequentially below the furnace head 5 to receive the molten alloy flowing from the outlet of the furnace head 5. After the molten alloy flows into the mold hole 913, it moves away from the furnace head 5 as the turntable 911 rotates. During this process, the molten alloy comes into contact with the air and dissipates heat through the heat conduction of the mold hole 913 and the turntable 911, achieving natural cooling and gradually solidifying to form an alloy bar. The intermittent rotation of the turntable 911 ensures continuous support of the molten alloy and provides sufficient cooling time for the alloy bar, eliminating the need for additional cooling equipment and saving energy.

[0032] While the rotating shaft 96 drives the turntable 911 to rotate, the protruding rod 915 at its end simultaneously performs a circular motion. When the protruding rod 915 rotates to contact the conical block 76 of the oiling component 7, the protruding rod 915 exerts a squeezing force on the inclined surface of the conical block 76, pushing the conical block 76 to move away from the rotating shaft 96. The conical block 76 drives the horizontal rod 72 to slide along the linear bearing on the mounting column 6. The horizontal rod 72 drives the piston rod 73 to slide into the oil tank 71 through the vertical plate 74. At this time, the spring 75 on the piston rod 73 is compressed, storing elastic potential energy. At the same time, the control panel 12 controls the solenoid valve 78 to open. The lubricating oil in the oil tank 71 is transported along the delivery pipe 77 to the connection between the rotating shaft 96 and the connecting plate 95 under the squeezing action of the piston rod 73, lubricating the rotating parts and reducing component wear. As the cam 915 continues to rotate and disengages from the conical block 76, the spring 75 releases its elastic potential energy, generating a rebound force that pulls the piston rod 73 out of the oil tank 71, returning it to its initial position. Simultaneously, the control panel 12 closes the solenoid valve 78, stopping the oil supply. With the continuous rotation of the shaft 96, the cam 915 repeatedly presses against the conical block 76, achieving intermittent addition of lubricating oil, ensuring lubrication while avoiding waste.

[0033] When the mold hole 913 containing the cooled alloy bar rotates with the turntable 911 to below the grinding assembly 11, the control panel 12 starts the grinding machine 117 according to the preset program. The grinding wheel of the grinding machine 117 rotates at high speed to grind the outer surface of the alloy bar, removing burrs, oxide scale and other impurities, and improving the surface precision of the alloy bar. The operator can adjust the height of the assembly plate by adjusting the nut 112 according to the diameter and surface precision requirements of the alloy bar, thereby adjusting the overall height of the grinding machine 117. At the same time, after pulling out the limit pin 115 and sliding the slide rod 114 to the appropriate position, the limit pin 115 is inserted into the corresponding limit hole 116 to fix the extension length of the slide rod 114, thereby adjusting the distance between the grinding machine 117 and the alloy bar, controlling the grinding pressure, and ensuring that the grinding effect meets the requirements. After grinding is completed, the control panel 12 controls the grinding machine 117 to stop working.

[0034] As the polished alloy rod continues to rotate with the turntable 911 to above the lifting assembly 10, the mounting plate 916 on the rotating rod 91 synchronously drives the protrusion 917 to rotate below the protrusion 103. After the protrusion 917 contacts the protrusion 103, as the rotating rod 91 rotates, the protrusion 917 exerts an upward squeezing force on the protrusion 103. The protrusion 103 drives the guide rod 102 to slide upward along the copper sleeve on the mounting bracket 101. The connecting plate 104 at the top of the guide rod 102 moves upward accordingly and pulls one end of the top rod 105 to rotate upward. Since the middle part of the push rod 105 is connected to the bracket 106 via the rotating rod, under the limiting action of the rotating rod, the other end of the push rod 105 rotates downward around the rotating rod. The arc-shaped contact head at the end of the push rod 105 contacts the bearing plate 914 and pushes the bearing plate 914 upward. The bearing plate 914 slides upward in the mold hole 913, driving the alloy rod on it to move synchronously. When the bearing plate 914 slides to the top of the mold hole 913, the alloy rod completely detaches from the mold hole 913 and falls into the collection frame below under the action of gravity, completing the collection. As the rotating rod 91 continues to rotate, the protrusion 917 gradually detaches from the protrusion 103, and the push rod 105 returns to its initial position under its own gravity. The bearing plate 914 also falls back to the bottom of the mold hole 913 under the action of gravity, ready to receive the alloy liquid for the next melting.

[0035] The entire device achieves linkage control of each component through the control panel 12. The speed of the motor 8 and the power of the high-frequency heater 4 are coordinated to ensure the coordination of alloy melting and transfer rhythm. The actions of the oiling component 7, the grinding component 11, and the lifting component 10 are synchronized with the interval rotation of the turntable 911, realizing the continuous automated preparation of nickel-based alloy bars from raw material melting, forming and cooling, surface grinding to finished product collection, which greatly improves production efficiency and ensures the stability of product quality.

Claims

1. A process for preparing high-temperature corrosion-resistant nickel-based alloy rods, characterized in that: The machine tool (1) includes a support column (2) mounted on one side of the machine tool (1), a smelting furnace (3) mounted on the support column (2) for smelting alloys, a ladder (21) mounted on the support column (2) for workers to inspect the smelting furnace (3), a high-frequency heater (4) mounted on the smelting furnace (3) for heating the alloys, a furnace head (5) for discharging material at the bottom of the smelting furnace (3), a heating wire (51) for preheating the furnace head (5) on the furnace head (5), and a motor (8) mounted at the bottom of the machine tool (1) for driving the drive assembly. (9) The drive assembly (9) is used to carry the alloy bars processed by the furnace head (5) and transfer the alloy bars. A mounting column (6) is installed on the other side of the machine tool (1). A lubrication assembly (7) for adding lubricating oil to the shaft of the drive assembly (9) and a grinding assembly (11) for grinding the transferred alloy bars are mounted on the mounting column (6). A lifting assembly (10) for detaching the transferred alloy bars from the drive assembly (9) is provided on the machine tool (1). A control panel (12) for controlling the entire device is also provided on the support column (2).

2. The process for preparing high-temperature corrosion-resistant nickel-based alloy rods according to claim 1, characterized in that: The drive assembly (9) includes a rotating rod (91). The output shaft of the motor (8) is fixedly connected to the rotating rod (91) via a coupling. A limiting block (92) is sleeved on the rotating rod (91). A disc (93) is fixedly connected to the rotating rod (91). An eccentric shaft (94) is mounted on the disc (93). A connecting disc (95) is fixedly connected to one end of the eccentric shaft (94) away from the disc (93). A rotating shaft (96) is rotatably sleeved on the connecting disc (95). A rotating plate (97) is fitted on the rotating shaft (96), and a slider (971) is slidably connected on the rotating plate (97). Connecting rods (99) are fixedly connected on both sides of the connecting plate (95). One of the connecting rods (99) slides through the limiting rod (910) and is fixedly connected to the slider (971). A positioning block (98) is installed on the other connecting rod (99). A sliding groove is provided on the limiting block (92) and it is slidably connected to the positioning block (98).

3. The process for preparing high-temperature corrosion-resistant nickel-based alloy rods according to claim 2, characterized in that: The rotating shaft (96) is fixedly connected to a turntable (911) at one end away from the connecting plate (95). A number of mold holes (913) are opened on the outer surface of the turntable (911). A number of limiting grooves (912) are opened on the outer peripheral surface of the turntable (911). A bearing plate (914) is slidably connected in the mold hole (913).

4. The process for preparing high-temperature corrosion-resistant nickel-based alloy rods according to claim 3, characterized in that: The outer surface of the rotating rod (91) is fixedly connected to an extrusion piece for driving the lifting assembly (10) to eject the alloy rod in the mold hole (913), and the outer surface of the rotating shaft (96) through the turntable (911) is fixedly connected to a protruding rod (915) for driving the oiling assembly (7) to add lubricating oil.

5. The process for preparing high-temperature corrosion-resistant nickel-based alloy rods according to claim 4, characterized in that: The extrusion member includes a mounting plate (916) and a protrusion (917), the mounting plate (916) being mounted on the rotating rod (91), and the protrusion (917) being mounted on the mounting plate (916).

6. The process for preparing high-temperature corrosion-resistant nickel-based alloy rods according to claim 5, characterized in that: The refueling assembly (7) includes an oil tank (71) mounted on a mounting column (6). A piston rod (73) is slidably connected to the inner wall of the oil tank (71). A spring (75) is sleeved at one end of the piston rod (73) located outside the oil tank (71), with its two ends respectively connected to the piston rod (73) and the oil tank (71). An oil filling port (711) for adding lubricating oil is provided on the outer surface of the oil tank (71). A delivery pipe (77) is connected to the oil tank (71), and a solenoid valve (78) for controlling the addition and flow rate is provided on the delivery pipe (77).

7. The process for preparing high-temperature corrosion-resistant nickel-based alloy bars according to claim 6, characterized in that: A crossbar (72) slides through the mounting post (6), and a vertical plate (74) is connected to one end of the crossbar (72) and the piston rod (73). A conical block (76) is connected to the crossbar (72) and is pressed by the protruding rod (915).

8. The process for preparing high-temperature corrosion-resistant nickel-based alloy rods according to claim 7, characterized in that: The grinding assembly (11) is mounted on the mounting post (6). The grinding assembly (11) includes a screw (111), and the outer surface of the screw (111) is fixedly connected to a connector (113) by means of a nut (112).

9. The process for preparing high-temperature corrosion-resistant nickel-based alloy bars according to claim 8, characterized in that: The connector (113) includes an assembly plate and a sleeve. The assembly plate is mounted on the screw (111), and the sleeve is mounted on the assembly plate. A slide rod (114) is slidably connected to the inner wall of the sleeve. Limiting holes (116) are provided on both the sleeve and the slide rod (114). A limiting pin (115) is provided in the limiting hole (116) to control the sliding distance of the slide rod (114) in the sleeve. A grinding machine (117) for grinding alloy rods is fixedly connected to the bottom end of the slide rod (114). The lifting assembly (10) includes a mounting plate mounted on the machine tool (1). The mounting frame (101) has a bracket (106) connected to one end. A top rod (105) is rotatably connected to the bracket (106) via a rotating rod. A guide rod (102) slides through the inner wall of the mounting frame (101). A protrusion (103) is fixedly connected to one end of the guide rod (102) below the mounting frame (101). A connecting plate (104) is fixedly connected to one end of the guide rod (102) above the mounting frame (101). The connecting plate (104) is fixedly connected to the other end of the top rod (105).

10. High-temperature corrosion-resistant nickel-based alloy rods, characterized in that, The high-temperature corrosion-resistant nickel-based alloy rod preparation process according to any one of claims 1-9 is specifically as follows: Ni: 50-55%, Cr: 17-21%, Mo: 2.8-3.3%, Nb: 4.75-5.5%, Al: 0.2-0.8%, Ti: 0.65-1.15%, C: ≤0.08%, Fe: balance.

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