Alloy bar heat treatment device and bar heat treatment process

Abstract

The present invention belongs to the technical field of alloy bar processing, and specifically relates to an alloy bar heat treatment device and a bar heat treatment process, comprising a heating module, a heat preservation module, a cooling module, an annealing module, a solid solution module, a tempering module and an isothermal solid solution module; by respectively inserting a plurality of nickel alloy bars into a suspension cylinder, the plurality of nickel alloy bars are suspended in a rolling cylinder with gaps, thereby improving the annealing effect of the nickel alloy bars; and as an external motor drives the rolling cylinder to rotate, the plurality of nickel alloy bars after heat preservation are accelerated to cool; a plurality of arc-shaped sliders are used to clamp the outside of the nickel alloy bars, and limit the position of nickel alloy bars of different thicknesses; the nickel alloy bars are inserted into the suspension cylinder, and the sliding plate is squeezed and slid, and the nickel alloy bars are sealed in the suspension cylinder in cooperation with a plurality of limit plates; after the annealing is completed, some of the nickel alloy bars can be pushed out of the suspension cylinder, thereby facilitating the unloading of the nickel alloy bars.

Description

Technical Field

[0001] The invention belongs to the technical field of alloy bar processing, in particular to an alloy bar heat treatment device and a bar heat treatment process. Background Art

[0002] Nickel alloy rods are alloy rods made of nickel as the base and other elements. Nickel has good physical, chemical and mechanical properties. Adding appropriate elements can improve the oxidation resistance, corrosion resistance, high temperature strength and certain physical properties of nickel alloys.

[0003] When preparing nickel alloy bars, the nickel alloy raw materials need to undergo processes such as turning ingots, forging blanks, rough machining, heat treatment, inspection and finishing. Among them, the annealing process in the heat treatment is also one of the many important heat treatment processes.

[0004] When the nickel alloy bars are heat-treated and annealed, the nickel alloy bars are placed in an annealing container for the annealing process. However, since the nickel alloy bars are squeezed and stacked together when placed, the annealing effect of the nickel alloy bars is easily affected.

[0005] To this end, the present invention provides an alloy bar heat treatment device and a bar heat treatment process. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problems is: the alloy bar heat treatment device described in the present invention includes a heating module, an insulation module, a cooling module, an annealing module, a solid solution module, a tempering module and an isothermal solid solution module; the heating module, the insulation module, the cooling module, the annealing module, the solid solution module, the tempering module and the isothermal solid solution module are interconnected and installed, and multiple modules are mainly used for heat treatment of alloy bars; the annealing module includes a device base; the top of the device base is slidably connected to a sliding box; the top of the device base is provided with a pushing assembly, and the pushing assembly is used to drive the sliding box to move; a rolling drum is provided inside the sliding box; a gear plate is fixed to the inside of the rolling drum near the bottom of the pushing assembly, and the gear plate is driven by an external motor; a suspension assembly is provided inside the rolling drum, and the suspension assembly is used to place nickel alloy bars for annealing treatment.

[0008] Preferably, the suspension assembly includes a support frame, a suspension cylinder and a flow port; a plurality of the support frames are evenly fixed to the inner wall of the rolling cylinder; the suspension cylinder is fixed to the outside of the plurality of support frames; and the flow port is opened on the outside of the suspension cylinder.

[0009] Preferably, a plurality of fixing blocks are fixedly connected to the outside of the suspension tube; and an arc-shaped sliding block is slidably connected to the inside of the plurality of fixing blocks via a No. 1 spring.

[0010] Preferably, the interior of the suspension cylinder is slidably connected to a sliding plate; an elastic member is fixed between the sliding plate and the suspension cylinder; a plurality of the suspension cylinders are fixedly connected to a guide cylinder at one end away from the gear plate; a limiting block is fixedly connected to the outside of the guide cylinder, and a plurality of limiting blocks are provided; the interiors of the plurality of limiting blocks are slidably connected to the limiting plate via a No. 2 spring.

[0011] Preferably, a heat dissipation rod is fixedly connected to the outside of the device base, and the heat dissipation rod passes through the inside of the rolling cylinder; a heat dissipation cavity is opened on the outside of the heat dissipation rod.

[0012] Preferably, the interior of the rolling drum is rotatably connected to a rotating rod, and a plurality of rotating rods are provided; a blowing fan blade is fixedly connected to the outside of the plurality of rotating rods and the outside of one end away from the rolling drum; an air cavity is provided inside the suspension drum and close to the blowing fan blade; a plurality of air holes are provided inside the suspension drum, and the plurality of air holes are connected to the air cavity; a number of rotating rods are fixedly connected to a number one rotating wheel on the outside near the inner wall of the rolling drum; a number two rotating wheel is fixedly connected to the outside of the heat dissipation rod near the number one rotating wheel, and the number two rotating wheel fits tightly with the plurality of number one rotating wheels.

[0013] Preferably, a guide rail is fixedly connected to the outside of the sliding box and one end away from the gear plate; and a blocking plate is installed on the outside of the guide rail through an electric slider.

[0014] Preferably, the pushing assembly includes a hydraulic cylinder and a connecting block; the hydraulic cylinder is fixedly connected to the outside of the device base; the output end of the hydraulic cylinder is fixedly connected to the connecting block, and the connecting block is fixedly connected to the top of the sliding box; a plurality of ventilation grooves are provided inside the sliding box, and filter plates are respectively fixed in the plurality of ventilation grooves; a plurality of leakage holes are provided on the outside of the rolling drum.

[0015] A heat treatment process for alloy bars, which is carried out using the alloy bar heat treatment device described above, and the heat treatment process steps are as follows:

[0016] S1: Heating process: First, the nickel alloy raw material is heated by a heating machine to a set temperature to change its internal structure and performance;

[0017] S2: Insulation process: The material is then insulated and kept at the set temperature within the set time to ensure that the material reaches a uniform state;

[0018] S3: Cooling process: After the material is kept warm, it is quickly cooled to fix its new structure and performance;

[0019] S4: Annealing process: By heating the material to a set temperature and slowly cooling it after holding it at a set temperature for a set time, the internal structure of the material is made more uniform, and residual stress and poor organization are reduced;

[0020] S5: Solution process: by heating the material to a high temperature single-phase region and maintaining the temperature constant, the excess phase is fully dissolved into the solid solution and then rapidly cooled, so that the structure is transformed into a uniform solid solution austenite structure, thereby improving plasticity and toughness;

[0021] S6: Tempering process: After the material is solid-solutionized, the material is heated to a set temperature and maintained for a set time to reduce its brittleness and improve its toughness and plasticity;

[0022] S7: Isothermal solution process: The material is heated to a set temperature and kept at this temperature for a set time, and then cooled at an appropriate rate to obtain a uniform structure and higher strength.

[0023] Preferably, the specific steps of the heat treatment annealing process are as follows:

[0024] S1: When annealing a nickel alloy bar workpiece during heat treatment, multiple nickel alloy bars are first placed inside a rolling cylinder, and then inserted into a suspension cylinder. The nickel alloy bars are squeezed by multiple arc-shaped sliders that retract and slide within multiple fixed blocks to fix the bars.

[0025] S2: As the nickel alloy bar is able to squeeze the sliding plate and the elastic member, the limiting plate limits the nickel alloy bar inside the suspension tube, and the blocking plate slides to block the inside of the sliding box. The annealing temperature of the workpiece is set to 980-985℃ for annealing, and the holding time is set to 0.6-1.5min / mm;

[0026] S3: After annealing and heat preservation of the nickel alloy bar, it is slowly cooled. An external motor drives the rolling drum to rotate, and multiple No. 1 runners roll against the surface of the No. 2 runner, synchronously driving multiple blower blades to rotate and blow air into the suspension drum, thereby accelerating the annealing of the nickel alloy bar in the suspension drum until the heat treatment annealing process is completed.

[0027] The beneficial effects of the present invention are as follows:

[0028] 1. The alloy bar heat treatment device and bar heat treatment process described in the present invention respectively insert a plurality of nickel alloy bars into the interior of a suspension cylinder so that the plurality of nickel alloy bars are suspended in the interior of a rolling cylinder with gaps, thereby improving the annealing effect of the nickel alloy bars. Furthermore, as an external motor drives the rolling cylinder to rotate, the plurality of nickel alloy bars after heat preservation are accelerated to cool. A plurality of arc-shaped sliders are used to clamp the outside of the nickel alloy bars to limit the position of nickel alloy bars of different thicknesses. By inserting the nickel alloy bars into the interior of the suspension cylinder and squeezing and sliding the sliding plate, the nickel alloy bars are sealed in the suspension cylinder in conjunction with a plurality of limit plates. After annealing is completed, some of the nickel alloy bars can be pushed out of the suspension cylinder, thereby facilitating the unloading of the nickel alloy bars.

[0029] 2. The alloy bar heat treatment device and bar heat treatment process described in the present invention are fixedly inserted into the center of the rolling drum through the heat dissipation rod, and can ventilate and cool the interior of the rolling drum in conjunction with the heat dissipation cavity. The rolling drum is used to drive multiple No. 1 runners to fit the outside of the No. 2 runner and rotate, and simultaneously drive multiple blower fan blades to rotate and blow air, thereby accelerating the cooling of the nickel alloy bar. The sealing plate slides with the electric slider in the guide rail, which can seal and anneal the interior of the sliding box. The output end of the hydraulic cylinder is extended and retracted to drive the sliding box to slide, thereby controlling the connectivity between the ventilation slot and the leak hole, and controlling the heat dissipation inside the rolling drum. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The present invention will be further described below with reference to the accompanying drawings.

[0031] Figure 1 It is a perspective view of the present invention;

[0032] Figure 2 It is a structural schematic diagram of the rolling drum in the present invention;

[0033] Figure 3 It is a structural schematic diagram of the base of the device in the present invention;

[0034] Figure 4 It is a structural schematic diagram of the heat dissipation rod in the present invention;

[0035] Figure 5 It is a structural schematic diagram of the suspension tube in the present invention;

[0036] Figure 6 It is a structural diagram of the fixed block in the present invention;

[0037] Figure 7 It is a structural schematic diagram of the fan blades in the present invention;

[0038] Figure 8 This is a flow chart of the alloy bar heat treatment process of the present invention

[0039] Figure 9It is a flow chart of the annealing process in the alloy bar heat treatment process of the present invention.

[0040] In the figure: 1. Device base; 11. Sliding box; 12. Rolling cylinder; 13. Gear plate; 2. Support frame; 21. Suspension cylinder; 22. Flow port; 3. Fixed block; 31. Arc-shaped slider; 4. Sliding plate; 41. Elastic member; 5. Guide cylinder; 51. Limit block; 52. Limit plate; 6. Heat dissipation rod; 61. Heat dissipation cavity; 7. Rotating rod; 71. Blowing fan blade; 72. Air cavity; 73. Air hole; 74. No. 1 runner; 75. No. 2 runner; 8. Guide rail; 81. Blocking plate; 9. Hydraulic cylinder; 91. Connecting block; 92. Filter plate; 93. Leakage hole. DETAILED DESCRIPTION

[0041] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0042] like Figures 1 to 3As shown, an alloy bar heat treatment device described in an embodiment of the present invention comprises a heating module, a heat preservation module, a cooling module, an annealing module, a solid solution module, a tempering module and an isothermal solid solution module; the heating module, the heat preservation module, the cooling module, the annealing module, the solid solution module, the tempering module and the isothermal solid solution module are interconnected and installed, and multiple modules are mainly used for heat treatment of alloy bars; the annealing module comprises a device base 1; the top of the device base 1 is slidably connected to a sliding box 11; the top of the device base 1 is provided with a pushing assembly, which is used to drive the sliding box 11 to move; a rolling drum 12 is provided inside the sliding box 11; a gear disk 13 is fixedly connected to the inside of the rolling drum 12 near the bottom of the pushing assembly, and the gear disk 13 is driven by an external motor; a suspension assembly is provided inside the rolling drum 12, and the suspension assembly is used to place the nickel alloy bar for annealing treatment; the current heat treatment equipment comprises a heating module, a heat preservation module, a cooling module, an annealing module, a solid solution module, a tempering module and an isothermal solid solution module, multiple modules The blocks are electrically connected to each other for use. The heating module, the insulation module, the cooling module, the solution module, the tempering module and the isothermal solution module are existing technologies. Among them, the annealing module is improved. When the nickel alloy bars are subjected to heat treatment and annealing, the sliding box 11 is slidably installed on the top of the device base 1 through the pushing component. The rolling cylinder 12 is placed inside the center of the sliding box 11. Multiple nickel alloy bars are placed in the suspension component respectively. The multiple nickel alloy bars are placed separately, and gaps are generated between the multiple nickel alloy bars, and the sliding box is pressed. 11 is sealed, and multiple nickel alloy bars are annealed to improve the annealing effect of the multiple nickel alloy bars. The annealing temperature of the workpiece is set to 980-985°C for annealing, and the holding time is set to 0.6-1.5min / mm. The upper limit is selected for small-sized workpieces and the lower limit is selected for large-sized workpieces. After holding, the multiple nickel alloy bars are cooled. The output end of the external motor drives the gear plate 13 to rotate, and synchronously drives the rolling cylinder 12 to rotate inside the sliding box 11, thereby accelerating the cooling speed of the multiple nickel alloy bars.

[0043] like Figures 1 to 3 、 Figure 5 As shown, the suspension assembly includes a support frame 2, a suspension tube 21 and a flow port 22; multiple support frames 2 are evenly fixed to the inner wall of the rolling drum 12; the suspension tube 21 is fixed to the outside of multiple support frames 2; the flow port 22 is opened on the outside of the suspension tube 21; when annealing multiple nickel alloy bars, the multiple nickel alloy bars are inserted into the interior of the suspension tube 21 in turn, and the suspension tube 21 is supported by multiple support frames 2, and the air inside the suspension tube 21 is circulated by relying on the opened support frames 2, and the multiple nickel alloy bars are annealed. When the multiple nickel alloy bars are cooled, the rolling drum 12 cooperates with the gear plate 13 to rotate with the external motor, thereby driving the multiple suspended nickel alloy bars to rotate, thereby accelerating the air flow and cooling effect inside the rolling drum 12.

[0044] like Figures 1 to 3 、 Figure 5 、 Figure 6 As shown, a plurality of fixed blocks 3 are fixed to the outside of the suspension tube 21; the interior of the plurality of fixed blocks 3 is slidably connected to an arc-shaped slider 31 through a No. 1 spring; when the nickel alloy bar is inserted into the interior of the suspension tube 21 and placed, due to the different thicknesses of the nickel alloy bar, the nickel alloy bar is easily fallen off when placed and rotated in the suspension tube 21, and a plurality of fixed blocks 3 are evenly distributed on the outside of the suspension tube 21. When the nickel alloy bar is inserted into the suspension tube 21 and the inclined surfaces of the plurality of arc-shaped sliders 31 are squeezed, the front side of the arc-shaped slider 31 is an inclined surface and the back side is a flat surface. The arc-shaped slider 31 is squeezed, and the arc-shaped slider 31 cooperates with the No. 1 spring to slide and retract into the interior of the fixed block 3. The plurality of arc-shaped sliders 31 are clamped on the outside of the nickel alloy bar, thereby playing a role in clamping and limiting nickel alloy bars of different sizes.

[0045] The interior of the suspension tube 21 is slidably connected to a sliding plate 4; an elastic member 41 is fixedly connected to the sliding plate 4 and the suspension tube 21; when the nickel alloy rod is inserted into the suspension tube 21 and annealed, the nickel alloy rod is inserted too deeply and is difficult to be removed, and the sliding plate 4 is used to slide inside the suspension tube 21. When the nickel alloy rod is inserted into the suspension tube 21, the nickel alloy rod can squeeze the sliding plate 4 to slide inside the suspension tube 21, and squeeze the elastic member 41 to contract and bear the force, thereby sealing the nickel alloy rod inside the suspension tube 21. After the nickel alloy rod is annealed, the blockage of the nickel alloy rod in the suspension tube 21 is released, and the elastic member 41 squeezes the sliding plate 4 to drive the nickel alloy rod to slide, so that part of the nickel alloy rod slides out of the suspension tube 21, thereby facilitating the blanking of the nickel alloy rod.

[0046] The ends of the plurality of suspension cylinders 21 away from the gear plate 13 are fixedly connected to the guide cylinder 5; the outside of the guide cylinder 5 is fixedly connected to the limit block 51, and the limit block 51 is provided with a plurality of limit plates 52; the interior of the plurality of limit blocks 51 is slidably connected to the limit plate 52 through the No. 2 spring; when the nickel alloy rod is inserted into the interior of the suspension cylinder 21, the nickel alloy rod is used to first squeeze the inclined surfaces of the plurality of limit plates 52, the front side of the limit plate 52 is an inclined surface, and the back side is a flat surface, and the plurality of limit plates 52 are squeezed by the nickel alloy rod and retracted into the interior of the plurality of limit blocks 51 respectively, and the limit plates 52 squeeze the No. 2 spring Under pressure, after the nickel alloy rod passes over multiple limit plates 52, one end of the nickel alloy rod close to the limit plate 52 is pressed against the plane of the limit plate 52 to limit the nickel alloy rod inserted into the suspension tube 21. At the same time, if the limit block 51 needs to be more intelligent, it can slide on the sliding plate 4 to squeeze the elastic part 41 to the top position, and a pressure sensor is set. An electric sliding block needs to be installed inside the limit block 51 to connect with the limit plate 52, and is electrically connected to multiple electric sliding blocks through the pressure sensor, so that the limit of the nickel alloy rod can be controlled intelligently.

[0047] like Figures 1 to 4 As shown, a heat dissipation rod 6 is fixed to the outside of the device base 1, and the heat dissipation rod 6 passes through the inside of the rolling drum 12; a heat dissipation cavity 61 is opened on the outside of the heat dissipation rod 6; when multiple nickel alloy bars are annealed and cooled, the heat dissipation rod 6 is fixed to the outside of the device base 1 and inserted into the center of the rolling drum 12. The heat dissipation cavity 61 opened by the heat dissipation rod 6 is used to introduce external air into the interior of the rolling drum 12, thereby accelerating the cooling of the multiple nickel alloy bars inside the rolling drum 12.

[0048] like Figures 1 to 7 As shown, the internal rotation of the rolling drum 12 is connected to the rotating rod 7, and the rotating rod 7 is provided with multiple; the external ends of the multiple rotating rods 7 and away from the rolling drum 12 are fixedly connected to the blowing fan blades 71; the internal part of the suspension drum 21 and close to the blowing fan blades 71 are provided with an air cavity 72; the internal part of the suspension drum 21 is provided with multiple air holes 73, and the multiple air holes 73 are connected to the air cavity 72; the external parts of the multiple rotating rods 7 are fixedly connected to the number 1 rotating wheel 74 near the inner wall of the rolling drum 12; the external parts of the heat dissipation rod 6 are fixedly connected to the number 2 rotating wheel 74 near the number 1 rotating wheel 74 When cooling the plurality of nickel alloy bars, the rolling drum 12 rotates along with the external motor, and the second runner 75 on the heat dissipation rod 6 is fixed to the outside of the device base 1 and does not move. During the rotation of the rolling drum 12, the plurality of first runners 74 can be driven to roll in close contact with the outside of the second runner 75, thereby driving the fan blades 71 on the rotating rod 7 to rotate and blow air. The air is blown into the interior of the air cavity 72 and is blown out from the plurality of air holes 73 to the surface of the nickel alloy bars, thereby improving the heat dissipation efficiency of the nickel alloy bars.

[0049] like Figure 1 As shown, a guide rail 8 is fixed to the outside of the sliding box 11 and at one end away from the gear plate 13; a sealing plate 81 is installed on the outside of the guide rail 8 through an electric slider; when multiple nickel alloy bars are subjected to heat treatment and annealing, the multiple nickel alloy bars are placed into the interior of the rolling drum 12, and the electric slider drives the sealing plate 81 to slide on the outside of the sliding box 11 and slide inside the guide rail 8, and finally the sealing plate 81 blocks the interior of the sliding box 11, thereby achieving the effect of closed annealing of the multiple nickel alloy bars.

[0050] like Figures 1 to 3As shown, the pushing assembly includes a hydraulic cylinder 9 and a connecting block 91; the hydraulic cylinder 9 is fixedly connected to the outer upper part of the device base 1; the output end of the hydraulic cylinder 9 is fixedly connected to the connecting block 91, and the connecting block 91 is fixedly connected to the top of the sliding box 11; the interior of the sliding box 11 is provided with a plurality of ventilation slots, and the plurality of ventilation slots are respectively fixed with filter plates 92; the outside of the rolling drum 12 is provided with a plurality of leakage holes 93; when the nickel alloy rod is annealed and cooled, the hydraulic cylinder 9 is used to drive the sliding box 11 at the bottom end of the connecting block 91 to slide forward, so that the leakage holes 93 opened on the outside of the rolling drum 12 are opposite to the ventilation slots inside the sliding box 11, so that the heat inside the rolling drum 12 can be dissipated outward from the plurality of filter plates 92, thereby improving the cooling effect on the nickel alloy rod, and according to the model of the nickel alloy rod, the connection between the leakage holes 93 and the ventilation slots is controlled in real time to reduce the occurrence of too fast cooling of the nickel alloy rod.

[0051] like Figure 8 and Figure 9 As shown, a heat treatment process for alloy bars is performed using the alloy bar heat treatment device described above. The heat treatment process steps are as follows:

[0052] S1: Heating process: First, the nickel alloy raw material is heated by a heating machine to a set temperature to change its internal structure and performance;

[0053] S2: Insulation process: The material is then insulated and kept at the set temperature within the set time to ensure that the material reaches a uniform state;

[0054] S3: Cooling process: After the material is kept warm, it is quickly cooled to fix its new structure and performance;

[0055] S4: Annealing process: By heating the material to a set temperature and slowly cooling it after holding it at a set temperature for a set time, the internal structure of the material is made more uniform, and residual stress and poor organization are reduced;

[0056] S5: Solution process: by heating the material to a high temperature single-phase region and maintaining the temperature constant, the excess phase is fully dissolved into the solid solution and then rapidly cooled, so that the structure is transformed into a uniform solid solution austenite structure, thereby improving plasticity and toughness;

[0057] S6: Tempering process: After the material is solid-solutionized, the material is heated to a set temperature and maintained for a set time to reduce its brittleness and improve its toughness and plasticity;

[0058] S7: Isothermal solution process: The material is heated to a set temperature and kept at this temperature for a set time, and then cooled at an appropriate rate to obtain a uniform structure and higher strength.

[0059] Preferably, the specific steps of the heat treatment annealing process are as follows:

[0060] S1: When annealing a nickel alloy bar workpiece during heat treatment, multiple nickel alloy bars are first placed inside the rolling cylinder 12 and then inserted into the suspension cylinder 21. The nickel alloy bars are pressed against multiple arc-shaped sliders 31, which retract and slide into multiple fixed blocks 3 to fix the bars.

[0061] S2: As the nickel alloy bar is able to squeeze the sliding plate 4 and the elastic member 41, the limiting plate 52 limits the nickel alloy bar inside the suspension tube 21, and the blocking plate 81 slides to block the inside of the sliding box 11. The annealing temperature of the workpiece is set to 980-985°C for annealing, and the holding time is set to 0.6-1.5 min / mm;

[0062] S3: After the nickel alloy bar is annealed and kept warm, it is slowly cooled. The external motor drives the rolling drum 12 to rotate, and the multiple No. 1 runners 74 roll against the surface of the No. 2 runner 75, synchronously driving the multiple blower blades 71 to rotate and blow air into the suspension drum 21, thereby accelerating the annealing of the nickel alloy bar in the suspension drum 21 until the heat treatment annealing process is completed.

[0063] Working process: When the nickel alloy rods are heat treated and annealed, the sliding box 11 is slidably installed on the top of the device base 1 through the pushing assembly, and the rolling drum 12 is placed and connected to the center of the sliding box 11. Multiple nickel alloy rods are placed in the suspension assembly respectively, and the multiple nickel alloy rods are placed separately. A gap is generated between the multiple nickel alloy rods, and the sliding box 11 is sealed. The multiple nickel alloy rods are annealed to improve the annealing effect of the multiple nickel alloy rods. The annealing temperature of the workpiece is set to 980-985℃ for annealing, and the holding time is set to 0.6-1.5min / mm. The upper limit is selected for small-sized workpieces and the lower limit is selected for large-sized workpieces. After holding, the multiple nickel alloy rods are cooled, and the output end of the external motor drives the gear plate 13 to rotate, and synchronously drives the rolling drum 12 to rotate inside the sliding box 11 to accelerate the cooling speed of the multiple nickel alloy rods; when annealing multiple nickel alloy rods, the multiple nickel alloy rods are inserted into the interior of the suspension drum 21 in turn, and are used The suspension cylinder 21 is supported by multiple support frames 2, and the air inside the suspension cylinder 21 is circulated by the support frames 2, and the multiple nickel alloy bars are annealed. When the multiple nickel alloy bars are cooled, the rolling cylinder 12 cooperates with the gear plate 13 to rotate with the external motor, thereby driving the multiple suspended nickel alloy bars to rotate, thereby accelerating the air flow and cooling effect inside the rolling cylinder 12; when the nickel alloy bars are inserted into the suspension cylinder 21 and placed, due to the different thicknesses of the nickel alloy bars, the nickel alloy bars are The material is easily fallen off when placed and rotated in the suspension tube 21. A plurality of fixing blocks 3 are evenly distributed on the outside of the suspension tube 21. When the nickel alloy bar is inserted into the suspension tube 21 and the inclined surfaces of the plurality of arc-shaped sliders 31 are squeezed, the front side of the arc-shaped slider 31 is an inclined surface and the back side is a flat surface. The arc-shaped slider 31 is squeezed and the arc-shaped slider 31 slides and retracts into the interior of the fixing block 3 in cooperation with the No. 1 spring. The plurality of arc-shaped sliders 31 are clamped against the outside of the nickel alloy bar, thereby playing the role of clamping and limiting nickel alloy bars of different sizes.

[0064] After the nickel alloy rod is inserted into the suspension tube 21 and annealed, the nickel alloy rod is inserted too deeply and is difficult to be taken out. The sliding plate 4 is used to slide inside the suspension tube 21. When the nickel alloy rod is inserted into the suspension tube 21, the nickel alloy rod can squeeze the sliding plate 4 to slide inside the suspension tube 21, and squeeze the elastic member 41 to contract and bear the force, thereby sealing the nickel alloy rod inside the suspension tube 21. After the nickel alloy rod is annealed, the blockage of the nickel alloy rod in the suspension tube 21 is released, and the elastic member 41 squeezes the sliding plate 4 to drive the nickel alloy rod to slide, so that part of the nickel alloy rod slides out of the suspension tube 21, thereby facilitating the unloading of the nickel alloy rod.

[0065] When the nickel alloy rod is inserted into the interior of the suspension tube 21, the nickel alloy rod is first used to squeeze the inclined surfaces of the multiple limit plates 52. The front side of the limit plate 52 is an inclined surface, and the back side is a flat surface. The multiple limit plates 52 are squeezed by the nickel alloy rod and retracted into the interior of the multiple limit blocks 51. The limit plates 52 squeeze the No. 2 spring and exert force. After the nickel alloy rod passes over the multiple limit plates 52, the end of the nickel alloy rod close to the limit plate 52 is pressed against the flat surface of the limit plate 52 to limit the nickel alloy rod inserted into the suspension tube 21.

[0066] When the plurality of nickel alloy bars are annealed and cooled, the heat dissipation rod 6 is fixed to the outside of the device base 1 and inserted into the center of the rolling drum 12. The heat dissipation cavity 61 opened by the heat dissipation rod 6 is used to introduce external air into the rolling drum 12, thereby accelerating the cooling of the plurality of nickel alloy bars inside the rolling drum 12. When the plurality of nickel alloy bars are cooled, the rolling drum 12 rotates with the external motor, and the second runner 75 on the heat dissipation rod 6 is fixed to the outside of the device base 1 and does not move. During the rotation of the rolling drum 12, the plurality of first runners 74 can be driven to roll closely against the outside of the second runner 75, thereby driving the fan blades 71 on the rotating rod 7 to rotate and blow air. The air is blown into the interior of the air cavity 72 and blown out from the plurality of air holes 73 to the surface of the nickel alloy bars, thereby improving the heat dissipation efficiency of the nickel alloy bars.

[0067] When heat treating and annealing multiple nickel alloy bars, the multiple nickel alloy bars are placed inside the rolling drum 12, and then the electric slider drives the blocking plate 81 to slide outside the sliding box 11 and inside the guide rail 8. Finally, the blocking plate 81 blocks the inside of the sliding box 11, thereby achieving the effect of closed annealing of the multiple nickel alloy bars.

[0068] When the nickel alloy rod is annealed and cooled, the hydraulic cylinder 9 is used to drive the sliding box 11 at the bottom end of the connecting block 91 to slide forward, so that the leakage hole 93 opened on the outside of the rolling drum 12 is opposite to the ventilation groove inside the sliding box 11, so that the heat inside the rolling drum 12 can be dissipated outward from the multiple filter plates 92, thereby improving the cooling effect on the nickel alloy rod. In addition, according to the model of the nickel alloy rod, the connection between the leakage hole 93 and the ventilation groove is controlled in real time to reduce the occurrence of excessive cooling of the nickel alloy rod.

[0069] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. An alloy bar heat treatment device, characterized in that: The invention comprises a heating module, a heat preservation module, a cooling module, an annealing module, a solid solution module, a tempering module and an isothermal solid solution module; the heating module, the heat preservation module, the cooling module, the annealing module, the solid solution module, the tempering module and the isothermal solid solution module are connected and installed with each other; the annealing module comprises a device base (1); the top of the device base (1) is slidably connected to a sliding box (11); the top of the device base (1) is provided with a pushing component, and the pushing component is used to drive the sliding box (11) to move; a rolling cylinder (12) is provided inside the sliding box (11); a gear plate (13) is fixedly connected to the inside of the rolling cylinder (12) near the bottom of the pushing component, and the gear plate (13) is connected and driven by an external motor; a suspension component is provided inside the rolling cylinder (12), and the suspension component is used to place the nickel alloy bar for annealing treatment; The suspension assembly comprises a support frame (2), a suspension cylinder (21) and a flow port (22), wherein the suspension cylinder (21) is multiple; the multiple support frames (2) are evenly fixed to the inner wall of the rolling cylinder (12); the suspension cylinder (21) is fixed to the outside of the multiple support frames (2); the flow port (22) is opened on the outside of the suspension cylinder (21); A heat dissipation rod (6) is fixedly connected to the outside of the device base (1), and the heat dissipation rod (6) passes through the inside of the rolling cylinder (12); a heat dissipation cavity (61) is formed on the outside of the heat dissipation rod (6); The interior of the rolling drum (12) is rotatably connected to a rotating rod (7), and a plurality of rotating rods (7) are provided; a blowing fan blade (71) is fixedly connected to the exterior of the plurality of rotating rods (7) and at one end away from the rolling drum (12); an air cavity (72) is provided inside the suspension drum (21) and close to the blowing fan blade (71); a plurality of air holes (73) are provided inside the suspension drum (21), and the plurality of air holes (73) are connected to the air cavity (72); a number of rotating wheels (74) are fixedly connected to the exterior of the plurality of rotating rods (7) near the inner wall of the rolling drum (12); a number of rotating wheels (75) are fixedly connected to the exterior of the heat dissipation rod (6) near the number of rotating wheels (74), and the number of rotating wheels (75) are tightly fitted with the plurality of number one rotating wheels (74).

2. The alloy bar heat treatment device according to claim 1, characterized in that: The outside of the suspension tube (21) is fixedly connected with a plurality of fixed blocks (3); the inside of the plurality of fixed blocks (3) is slidably connected with an arc-shaped slider (31) via a No. 1 spring.

3. The alloy bar heat treatment device according to claim 2, characterized in that: The interior of the suspension cylinder (21) is slidably connected to a sliding plate (4); an elastic member (41) is fixedly connected between the sliding plate (4) and the suspension cylinder (21); a plurality of the suspension cylinders (21) are fixedly connected to a guide cylinder (5) at one end away from the gear plate (13); a limiting block (51) is fixedly connected to the outside of the guide cylinder (5), and a plurality of limiting blocks (51) are provided; the interiors of the plurality of limiting blocks (51) are slidably connected to the limiting plate (52) via a No. 2 spring.

4. The alloy bar heat treatment device according to claim 3, characterized in that: A guide rail (8) is fixedly connected to the outside of the sliding box (11) and at one end away from the gear plate (13); a blocking plate (81) is installed on the outside of the guide rail (8) via an electric slider.

5. The alloy bar heat treatment device according to claim 4, characterized in that: The pushing assembly comprises a hydraulic cylinder (9) and a connecting block (91); the hydraulic cylinder (9) is fixedly connected to the upper portion of the exterior of the device base (1); the output end of the hydraulic cylinder (9) is fixedly connected to the connecting block (91), and the connecting block (91) is fixedly connected to the top of the sliding box (11); a plurality of ventilation slots are provided inside the sliding box (11), and filter plates (92) are respectively fixedly connected to the plurality of ventilation slots; a plurality of leakage holes (93) are provided on the exterior of the rolling drum (12).

6. A heat treatment process for alloy bars, wherein the heat treatment process is performed using the alloy bar heat treatment apparatus according to claim 5, characterized in that: The heat treatment process steps are as follows: S1: Heating process: First, the nickel alloy raw material is heated by a heating machine to a set temperature to change its internal structure and performance; S2: Insulation process: The material is then insulated and kept at the set temperature within the set time to ensure that the material reaches a uniform state; S3: Cooling process: After the material is kept warm, it is quickly cooled to fix its new structure and performance; S4: Annealing process: By heating the material to a set temperature and slowly cooling it after holding it at a set temperature for a set time, the internal structure of the material is made more uniform, and residual stress and poor organization problems are reduced; S5: Solution process: by heating the material to a high temperature single-phase region and maintaining the temperature constant, the excess phase is fully dissolved into the solid solution and then rapidly cooled, so that the structure is transformed into a uniform solid solution austenite structure, thereby improving plasticity and toughness; S6: Tempering process: After the material is solid-solutionized, the material is heated to a set temperature and maintained for a set time to reduce its brittleness and improve its toughness and plasticity; S7: Isothermal solution process: The material is heated to a set temperature and kept at this temperature for a set time, and then cooled at an appropriate rate to obtain a uniform structure and higher strength.

7. The alloy bar heat treatment process according to claim 6, characterized in that: The specific steps of the heat treatment annealing process are as follows: S1: When annealing a nickel alloy bar workpiece during heat treatment, a plurality of nickel alloy bars are first placed inside a rolling cylinder (12), and the nickel alloy bars are inserted into a suspension cylinder (21), and the nickel alloy bars are squeezed by a plurality of arc-shaped sliders (31) to retract and slide within a plurality of fixed blocks (3) to fix the bars; S2: As the nickel alloy rod is squeezed against the sliding plate (4) and the elastic member (41), the limiting plate (52) limits the nickel alloy rod inside the suspension tube (21), and the blocking plate (81) slides to block the inside of the sliding box (11). The annealing temperature of the workpiece is set to 980-985°C for annealing, and the holding time is set to 0.6-1.5 min / mm; S3: After the nickel alloy bar is annealed and kept warm, it is slowly cooled. The external motor drives the rolling drum (12) to rotate, and the plurality of No. 1 runners (74) roll in contact with the surface of the No. 2 runner (75), synchronously driving the plurality of blowing fan blades (71) to rotate and blow air into the suspension drum (21), thereby accelerating the annealing of the nickel alloy bar in the suspension drum (21) until the heat treatment annealing process is completed.

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