Ultrathin titanium and titanium alloy strip continuous heating annealing process and device

Abstract

The invention relates to the technical field of titanium strip machining, and discloses an ultrathin titanium and titanium alloy strip continuous heating annealing process and device.The heating annealing device comprises a mounting table, a mounting box is fixedly connected to the mounting table, and a plurality of guide rollers and a discharging traction mechanism are rotationally connected into the mounting box; the feeding traction mechanism is arranged in the mounting box and used for feeding a strip and automatically pulling the strip to the receiving roller, the strip is wound through the winding roller and driven to move, the strip is fully and evenly heated through the heating mechanism in the moving process, the strip heating uniformity is improved, and the heating efficiency of the strip is improved. According to the strip heating device, the strip is fully, uniformly and continuously heated, meanwhile, heated hot air is automatically recycled to heat the strip again, the strip is subjected to slow cooling and annealing, the performance of the strip is improved, meanwhile, heat after heating is recycled, and energy is saved.

Description

Technical Field

[0001] The present invention relates to the technical field of titanium strip processing, and in particular to a continuous heating and annealing process and device for ultra-thin titanium and titanium alloy strips. Background Art

[0002] In the manufacturing of thin plates in the metallurgical industry, the annealing process is one of the key processes affecting the product manufacturing quality. Traditionally, most of the annealing processes in the manufacturing of titanium and titanium alloy strips use box furnace annealing (i.e., the whole coil of sheet material is put into the annealing furnace for temperature-controlled annealing). The advantage of box furnace annealing is that since the whole coil of strip is annealed, the whole coil of strip is isolated from the outside air. Therefore, the advantage is that the surface of the annealed strip is not easily oxidized.

[0003] However, in the existing box furnace during the annealing process, the whole coil of strip is put into the furnace for heating and annealing. During the annealing process, the strip in the middle of the coil, due to its position in the center of the coil, cannot be heated sufficiently, resulting in insufficient heating of the middle strip. At the same time, during the cooling and annealing process, the strip in the middle position cannot be cooled quickly, resulting in a slower cooling rate of the middle strip, and a lower degree of crystal refinement of the strip during the temperature drop process, thereby reducing the performance of the strip after heating and annealing. Summary of the Invention

[0004] The purpose of the present invention is to provide a continuous heating and annealing process and device for ultra-thin titanium and titanium alloy strips, and solve the deficiencies in the above background art.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A continuous heating and annealing process for ultra-thin titanium and titanium alloy strips, comprising the following steps:

[0007] Step 1: Put the strip into the heating and annealing device, then evacuate the heating and annealing device, and fill the heating and annealing device with argon.

[0008] Step 2: The heating and annealing device uniformly heats the strip to 800 °C, then enters a slow cooling section to keep it at 700 °C, and then enters the rapid cooling end in the heating and annealing device to be rapidly cooled to 40 °C.

[0009] Step 3: The strip after heating, cooling and annealing is wound up by the heating and annealing device, and then the heating and annealing device is opened to take out the annealed strip.

[0010] A continuous heating and annealing device for ultra-thin titanium and titanium alloy strips, the heating and annealing device includes a mounting table, a mounting box is fixedly connected to the mounting table, and a plurality of guide rollers are rotatably connected in the mounting box;

[0011] A material unwinding and pulling mechanism, which is arranged in the installation box and is used to unwind the strip and automatically pull the strip onto a receiving roller;

[0012] A heating mechanism, which is arranged in the installation box and is used to heat and anneal the strip;

[0013] A rapid cooling mechanism is provided in the installation box and is used for rapidly cooling and annealing the heated strip.

[0014] As a further solution of the present invention: the material unloading pulling mechanism includes two material unloading rollers rotatably connected to the installation box, a plurality of transmission tubes are slidably connected in the installation box, one end of the transmission tube is fixedly connected to a first electric telescopic rod fixedly connected to the installation box through a connecting rod, one end of the transmission tube is fixedly connected to a fixed block, a first fixing mechanism is arranged in the fixed block, wherein the outer surfaces of the two fixed blocks are slidably connected to the installation block, a plurality of fixing grooves are provided on the installation block, the first fixing mechanism is used to fix the installation block, a clamping roller is rotatably connected between the two installation blocks, a clamping groove is provided on the outer surface of the clamping roller, a clamping plate is fixedly connected in the clamping groove, a spring fixedly connected to the clamping groove is fixedly connected to one side of the clamping plate, and a second fixing mechanism connected to the material receiving roller is provided on the installation box.

[0015] As a further solution of the present invention: the first fixing mechanism includes a second electric telescopic rod fixedly connected to the transmission tube, one end of the second electric telescopic rod is fixedly connected to a transmission rod slidably connected to the transmission tube and the mounting block, one end of the transmission rod is fixedly connected to a transmission bevel block, and one side of the transmission bevel block is slidably connected to a clamping block slidably connected to the mounting block.

[0016] As a further solution of the present invention: the second fixing mechanism includes a third electric telescopic rod fixedly connected to the installation box, one end of the third electric telescopic rod is fixedly connected to a connecting plate, the top of the connecting plate is fixedly connected to an extrusion block, and the outer surface of the receiving roller is provided with an extrusion groove.

[0017] As a further solution of the present invention: the heating mechanism includes a first transmission motor fixedly connected to the installation box, the output end of the first transmission motor is fixedly connected to the first transmission shaft through a coupling, the outer surface of the first transmission shaft is connected to the installation tube rotatably connected to the installation box through a transmission wheel and a transmission belt, the outer surface of the installation tube is fixedly connected to a plurality of electric heating tubes, a first fan blade fixedly sleeved with the first transmission shaft is arranged above the electric heating tube, a slow cooling heating mechanism connected to the installation tube is arranged in the installation box, and the slow cooling heating mechanism is used for slowly cooling and annealing the strip.

[0018] As a further solution of the present invention: The slow cooling and heating mechanism includes a first connecting pipe rotatably connected to the installation pipe. A second transmission shaft rotatably connected to the first connecting pipe is rotatably connected inside the installation pipe. The first transmission shaft and the second transmission shaft are connected by a transmission wheel and a transmission belt. A second fan blade is fixedly sleeved on the outer surface of the second transmission shaft. A second connecting pipe is fixedly connected to the outer surface of the first connecting pipe. Two third connecting pipes are fixedly connected to the outer surface of the second connecting pipe. A plurality of air blowing pipes are fixedly connected to the outer surface of the third connecting pipe. A plurality of air blowing covers are fixedly connected to the outer surface of the air blowing pipe.

[0019] As a further solution of the present invention: The rapid cooling mechanism includes a cooling box fixedly connected to the installation box. Fourth connecting pipes are fixedly connected to both the top and the bottom of the cooling box. A plurality of heat dissipation pipes are obliquely arranged on the outer surface of the fourth connecting pipe. A fifth connecting pipe is fixedly connected between the two fourth connecting pipes. A water cooling box is fixedly connected to the top of the installation table. A cooling elbow is fixedly connected inside the water cooling box. The fifth connecting pipe is fixedly connected to the bottom end of the cooling elbow. A sixth connecting pipe is fixedly connected to the cooling box. Suction pipes are fixedly connected to both ends of the sixth connecting pipe. A seventh connecting pipe fixedly connected to the top end of the cooling elbow is fixedly connected to the outer surface of the suction pipe. An air suction fan fixedly connected to the water cooling box is arranged on the seventh connecting pipe.

[0020] As a further solution of the present invention: A water cooler fixedly connected to the installation table is fixedly connected to the outer surface of the water cooling box through a water pump and a pipeline. A second driving motor is fixedly connected to the top of the water cooling box. The output end of the second driving motor is fixedly connected to a stirring rod rotatably connected to the water cooling box through a coupling.

[0021] As a further solution of the present invention: An argon gas tank is fixedly connected to the top of the installation table. The argon gas tank is fixedly connected to the installation box through an air pump and a pipeline. A vacuum pump is fixedly connected to the top of the installation table. The vacuum pump is connected to the installation box through a pipeline.

[0022] The beneficial effects of the present invention:

[0023] (1) By placing the ultra-thin titanium and titanium alloy strips into the installation box, the traction mechanism inside the installation box automatically traction-fixes the strips. At the same time, during the traction process, through the cooperation of the heating mechanism and the rapid cooling mechanism, heat treatment annealing is carried out on them, so as to realize the automatic traction and heat treatment annealing of the initial strips, enabling the strips to be comprehensively heat-treated during the continuous heat treatment annealing process, preventing the initial strips from being unable to be heat-treated, and further improving the heat treatment annealing effect of the strips.

[0024] (2) The coiling roller winds the strip, driving the strip to move. During the movement, the heating mechanism heats the strip sufficiently and evenly, improving the uniformity of strip heating, enabling the strip to be heated continuously, sufficiently and evenly. At the same time, the hot air after heating is automatically recycled to reheat the strip, allowing the strip to be slowly cooled and annealed, improving the properties of the strip. Meanwhile, the heat after heating is recycled, saving energy.

[0025] (3) The strip after slow cooling and annealing is fed into the cooling box. Subsequently, the rapid cooling mechanism in the cooling box blows cold air onto the heat dissipation pipes, and then the cold air blows evenly and rapidly on the surface of the strip to achieve rapid cooling of the heated strip, greatly improving the annealing effect of the strip. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention will be further described below with reference to the accompanying drawings.

[0027] Figure 1 is the first perspective view of the external structure of the present invention;

[0028] Figure 2 is the first perspective view of the internal structure of the present invention;

[0029] Figure 3 is the second perspective view of the internal structure of the present invention;

[0030] Figure 4 is the third perspective view of the internal structure of the present invention;

[0031] Figure 5 is the perspective view of the external structure of the installation pipe of the present invention;

[0032] Figure 6 is the front view of the internal structure of the transmission pipe of the present invention;

[0033] Figure 7 is the front view of the internal structure of the clamping roller of the present invention;

[0034] Figure 8 is the present invention Figure 2 magnified view of A;

[0035] Figure 9 is the present invention Figure 2 magnified view of B;

[0036] Figure 10 is the present invention Figure 3 magnified view of C.

[0037] In the figure: 1, mounting table; 2, mounting box; 3, guiding roller; 4, material receiving roller; 11, material feeding roller; 12, transmission pipe; 13, first electric telescopic rod; 14, fixing block; 15, mounting block; 16, fixing groove; 17, clamping roller; 18, clamping groove; 19, clamping plate; 190, spring; 21, second electric telescopic rod; 22, transmission rod; 23, transmission inclined block; 24, clamping block; 31, third electric telescopic rod; 32, connecting plate; 33, extrusion block; 34, extrusion groove; 41, first driving motor; 42, first transmission shaft; 43, mounting pipe; 44, electric heating pipe; 45, first fan blade; 51, first connecting pipe; 52, second transmission shaft; 53, second fan blade; 54, second connecting pipe; 55, third connecting pipe; 56, blowing pipe; 57, blowing hood; 61, cooling box; 62, fourth connecting pipe; 63, heat dissipation pipe; 64, fifth connecting pipe; 65, water cooling box; 66, cooling elbow; 67, sixth connecting pipe; 68, air suction pipe; 69, seventh connecting pipe; 690, air suction fan; 691, water cooler; 692, second driving motor; 693, stirring rod; 71, argon gas tank; 72, vacuum pump. Detailed implementation manners

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0039] Embodiment 1

[0040] The present invention relates to a continuous heating and annealing process for ultra-thin titanium and titanium alloy strips, which includes the following steps:

[0041] Step 1: Place the strip into the heating and annealing device, then evacuate the heating and annealing device and fill it with argon gas.

[0042] Step 2: The heating and annealing device uniformly heats the strip to 800 °C, then enters a slow cooling section to keep it at 700 °C, and then enters the rapid cooling end in the heating and annealing device to rapidly cool to 40 °C.

[0043] Step 3: The strip after heating, cooling and annealing is wound up by the heating and annealing device, and then the heating and annealing device is opened to take out the annealed strip.

[0044] Embodiment 2

[0045] Please refer to Figures 1 - 10As shown in the figure, a continuous heating and annealing device for ultra-thin titanium and titanium alloy strips. The heating and annealing device includes a mounting table 1, on which a mounting box 2 is fixedly connected. Inside the mounting box 2, a plurality of guide rollers 3 are rotatably connected. A feeding and pulling mechanism is arranged inside the mounting box 2, which is used to feed the strip and automatically pull it onto the take-up roller 4. A heating mechanism is arranged inside the mounting box 2, which is used to heat and anneal the strip. A rapid cooling mechanism is arranged inside the mounting box 2, which is used to rapidly cool and anneal the heated strip. On the top of the mounting table 1, an argon gas tank 71 is fixedly connected. The top of the argon gas tank 71 is fixedly connected to the mounting box 2 through an air pump and a pipeline. On the top of the mounting table 1, a vacuum pump 72 is fixedly connected. The vacuum pump 72 is connected to the mounting box 2 through a pipeline.

[0046] The strip is placed into the mounting box 2 for fixation. Subsequently, the mounting box 2 is evacuated by the vacuum pump. Then, argon gas in the argon gas tank 71 is filled into the mounting box 2 through the vacuum pump 72 and the pipeline on the argon gas tank 71, so that the mounting box 2 is filled with argon gas. Subsequently, the feeding and pulling mechanism inside the mounting box 2 automatically pulls the strip of the coil. During the process of pulling the strip, at the same time, the heating mechanism and the rapid cooling mechanism inside the mounting box 2 work simultaneously to heat and anneal the strip, enabling the continuously heated and annealed strip to be pulled. Then, one end of the pulled strip is automatically fixed on the take-up roller 4. Subsequently, the take-up roller 4 starts to work to drive the strip to be wound up, and at the same time drives the strip to move inside the mounting box 2. At the same time, the heating mechanism and the rapid cooling mechanism cooperate to perform continuous heating and annealing processing on the strip, greatly improving the heating and annealing effect.

[0047] Embodiment 3

[0048] Based on Embodiment 2, please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 6 、 Figure 7 and Figure 8As shown, the feeding and pulling mechanism includes two feeding rollers 11 rotatably connected to the mounting box 2. One end of one of the feeding rollers 11 is fixedly connected to a motor through a coupling. A plurality of transmission pipes 12 are slidably connected inside the mounting box 2. One end of the transmission pipe 12 is fixedly connected to a first electric telescopic rod 13 fixedly connected to the mounting box 2 through a connecting rod. One end of the transmission pipe 12 is fixedly connected to a fixing block 14. A first fixing mechanism is arranged inside the fixing block 14. The outer surfaces of two of the fixing blocks 14 are slidably connected to a mounting block 15. A plurality of fixing grooves 16 are formed in the mounting block 15. The first fixing mechanism is used to fix the mounting block 15. A clamping roller 17 is rotatably connected between the two mounting blocks 15. A clamping groove 18 is formed on the outer surface of the clamping roller 17. A clamping plate 19 is fixedly connected inside the clamping groove 18. One side of the clamping plate 19 is fixedly connected to a spring 190 fixedly connected to the clamping groove 18. A second fixing mechanism connected to the winding roller 4 is arranged on the mounting box 2. The first fixing mechanism includes a second electric telescopic rod 21 fixedly connected to the transmission pipe 12. One end of the second electric telescopic rod 21 is fixedly connected to a transmission rod 22 slidably connected to both the transmission pipe 12 and the mounting block 15. One end of the transmission rod 22 is fixedly connected to a transmission inclined block 23. One side of the transmission inclined block 23 is slidably connected to a clamping block 24 slidably connected to the mounting block 15. The second fixing mechanism includes a third electric telescopic rod 31 fixedly connected to the mounting box 2. One end of the third electric telescopic rod 31 is fixedly connected to a connecting plate 32. The top of the connecting plate 32 is fixedly connected to a pressing block 33. A pressing groove 34 is formed on the outer surface of the winding roller 4.

[0049] By placing the strip coil into the installation box 2 and fixedly connecting it to the unwinding roller 11, at the same time lifting the clamping plate 19 on the clamping roller 17 upward, the spring 190 is compressed. Then, one end of the strip is inserted into the clamping groove 18 of the clamping roller 17. Subsequently, the clamping plate 19 is released, and the clamping plate 19 begins to squeeze one end of the strip under the action of the spring 190 to fix the strip. Then, the first electric telescopic rod 13 drives the transmission pipe 12 and the fixing block 14 to move. The fixing block 14 drives the mounting block 15 to move, and the mounting block 15 drives the clamping roller 17 to move to the left until it reaches the leftmost end. Subsequently, the first electric telescopic rod 13 at the leftmost end drives the transmission pipe 12 to move downward, and the transmission pipe 12 drives the clamping block 24 into the fixing groove 16 on the mounting block 15. Then, the second electric telescopic rod 21 in the transmission pipe 12 drives the transmission rod 22 to move, the transmission rod 22 drives the transmission inclined block 23 to move, and the transmission inclined block 23 drives a plurality of clamping blocks 24 in the fixing block 14 to move outward, so that they are pressed in the fixing groove 16 to fix the mounting block 15. At this time, the second electric telescopic rod 21 in the upper transmission pipe 12 drives the transmission rod 22 to contract, so that the fixing block 14 no longer clamps the mounting block 15. Subsequently, the first electric telescopic rod 13 connected to the left transmission pipe 12 drives the transmission pipe 12 to move downward, the transmission pipe 12 drives the fixing block 14 and the mounting block 15 to move downward, and the mounting block 15 drives the clamping roller 17 to move downward. At the same time, the clamping roller 17 rotates on the mounting block 15, thereby driving the strip to move vertically downward and pulling it to the lower part. Then, the lower transmission pipe 12 drives the fixing block 14 to be inserted into the fixing groove 16 of the mounting block 15 to fix the mounting block 15. Subsequently, it drives the mounting block 15 and the clamping roller 17 to move to the right, thereby driving the strip to move to the right until it moves to the lower part of the winding roller 4. Then, the third electric telescopic rod 31 drives the connecting plate 32 and the pressing block 33 to move upward, and the pressing block 33 drives the strip to move upward, so that the strip enters the pressing groove 34 on the winding roller 4. The pressing block 33 is conical, and at the same time, the pressing groove 34 is an inverted conical shape, so that the strip is fixed in the pressing groove 34. At the same time, during the pressing process, the unwinding motor connected to one end of the unwinding roller 11 stops working, and the strip is pulled out from the clamping groove 18 under the action of a large upward pulling force, so that the strip is automatically fixed on the winding roller 4. Subsequently, the winding roller 4 rotates to wind the strip. At the same time, during the traction process, the heating mechanism and the rapid annealing mechanism work simultaneously to perform heating and annealing processing on the traction strip, thereby realizing automatic traction and heating annealing of the initial strip, enabling the strip to be comprehensively heated and annealed during the continuous heating and annealing process, preventing the initial end of the strip from being unable to be heated and annealed, and further improving the heating and annealing effect of the strip.

[0050] Example 4

[0051] On the basis of Example 2, please refer to Figure 2 、Figure 3 , Figure 5 and Figure 9 As shown in Figure 3 , Figure 5 and Figure 9 , the heating mechanism includes a first drive motor 41 fixedly connected to the installation box 2. The first drive motor 41 is controlled by a PLC programming program, which can control the forward and reverse rotation and the rotation angle of the first drive motor 41. The output end of the first drive motor 41 is fixedly connected with a first drive shaft 42 through a coupling. The outer surface of the first drive shaft 42 is connected with an installation pipe 43 rotatably connected to the installation box 2 through a transmission wheel and a transmission belt. The outer surface of the installation pipe 43 is fixedly connected with a plurality of electric heating tubes 44. Above the electric heating tubes 44, there is a first fan blade 45 fixedly sleeved on the first drive shaft 42. Inside the installation box 2, there is a slow cooling heating mechanism connected to the installation pipe 43. The slow cooling heating mechanism is used for slowly cooling and annealing the strip. The slow cooling heating mechanism includes a first connecting pipe 51 rotatably connected to the installation pipe 43. Inside the installation pipe 43, there is a second drive shaft 52 rotatably connected to the first connecting pipe 51. The first drive shaft 42 and the second drive shaft 52 are connected through a transmission wheel and a transmission belt. The outer surface of the second drive shaft 52 is fixedly sleeved with a second fan blade 53. The outer surface of the first connecting pipe 51 is fixedly connected with a second connecting pipe 54. The outer surface of the second connecting pipe 54 is fixedly connected with two third connecting pipes 55. The outer surface of the third connecting pipe 55 is fixedly connected with a plurality of air blowing pipes 56. The outer surface of the air blowing pipes 56 is fixedly connected with a plurality of air blowing covers 57.

[0052] The first drive motor 41 drives the first drive shaft 42 to rotate. The first drive shaft 42 drives the installation pipe 43 to rotate through a transmission wheel and a transmission belt. The installation pipe 43 drives the electric heating tubes 44 to rotate. At the same time, the electric heating tubes 44 work to uniformly heat the top and bottom of the strip. During the heating process, the installation pipe 43 drives the first fan blade 45 to rotate. The first fan blade 45 blows air downward, so that the heated argon gas blows and heats the surface of the strip, thereby uniformly heating the strip, greatly improving the uniformity of heating the strip, enabling the strip to be continuously heated evenly and fully, heating it evenly to 800 °C. After heating, it then leaves the electric heating tubes 44. At this time, the strip begins to cool. At the same time, during the heating process, the first drive shaft 42 drives the second drive shaft 52 to rotate through a transmission wheel and a transmission belt. The second drive shaft 52 drives the second fan blade 53 to rotate. The second fan blade 53 rotates inside the installation pipe 43, sucking the hot air after heating the strip into the installation pipe 43. Then the installation pipe 43 blows hot air into the third connecting pipe 55 through the first connecting pipe 51 and the second connecting pipe 54. The third connecting pipe 55 blows and heats the strip again through a plurality of air blowing pipes 56 and air blowing covers 57 to keep it at 700 °C for slow cooling annealing for a period of time, improving the performance of the strip. At the same time, the heat after heating is recycled, saving energy.

[0053] Example 5

[0054] Based on Example 4, please refer to Figure 3 , Figure 4 and Figure 10 As shown in, the rapid cooling mechanism includes a cooling box 61 fixedly connected to the installation box 2. Both the top and bottom of the cooling box 61 are fixedly connected with fourth connecting pipes 62. A plurality of heat dissipation pipes 63 are obliquely arranged on the outer surface of the fourth connecting pipes 62. A fifth connecting pipe 64 is fixedly connected between the two fourth connecting pipes 62. The top of the installation table 1 is fixedly connected with a water cooling box 65. A cooling elbow 66 is fixedly connected inside the water cooling box 65. The fifth connecting pipe 64 is fixedly connected to the bottom end of the cooling elbow 66. A sixth connecting pipe 67 is fixedly connected to the cooling box 61. Both ends of the sixth connecting pipe 67 are fixedly connected with air suction pipes 68. A seventh connecting pipe 69 fixedly connected to the top end of the cooling elbow 66 is fixedly connected to the outer surface of the air suction pipe 68. An air suction fan 690 fixedly connected to the water cooling box 65 is arranged on the seventh connecting pipe 69. The outer surface of the water cooling box 65 is fixedly connected with a water cooler 691 fixedly connected to the installation table 1 through a water pump and a pipeline. The top of the water cooling box 65 is fixedly connected with a second driving motor 692. The output end of the second driving motor 692 is fixedly connected with a stirring rod 693 rotatably connected to the water cooling box 65 through a coupling.

[0055] After the strip is slowly cooled for a period of time, then the strip enters the cooling box 61. At this time, the air suction fan 690 sucks argon into the cooling elbow 66 through the seventh connecting pipe 69 and the air suction pipe 68. Then, the argon sucked in is cooled by the cooling elbow 66. Then, the cooling elbow 66 passes cold air into the plurality of heat dissipation pipes 63 through the fifth connecting pipe 64 and the fourth connecting pipe 62. Then, the plurality of heat dissipation pipes 63 obliquely blow cold air onto the surface of the strip to rapidly cool the strip with cold air. At the same time, the cooled cold air enters the middle position of the cooling box 61, then is sucked in through the air suction pipe 68, and then is cooled again through the cooling elbow 66, thereby realizing the circulating cooling of argon. At the same time, the water cooler 691 circulates cold water into the water cooling box 65 through a water pump and a pipeline to cool the cooling elbow 66. At the same time, the stirring rod 693 is driven to rotate by the second driving motor 692, and the stirring rod 693 stirs the cooling water to rapidly cool the cooling elbow 66, thereby realizing the rapid cooling of the heated strip and greatly improving the annealing effect of the strip.

[0056] Working principle of the present invention: The strip is placed into the installation box 2 for fixation. Subsequently, the installation box 2 is evacuated by a vacuum pump. Then, argon gas in the argon gas tank 71 is filled into the installation box 2 through the vacuum pump 72 and pipeline on the argon gas tank 71, so that the installation box 2 is filled with argon gas. Subsequently, the strip coil is automatically pulled by the strip feeding and pulling mechanism in the installation box 2. During the process of pulling the strip, the heating mechanism and the rapid cooling mechanism in the installation box 2 work simultaneously to anneal the strip by heating, enabling the pulled strip to also undergo continuous annealing by heating. Then, one end of the pulled strip is automatically fixed on the take-up roller 4. Subsequently, the take-up roller 4 starts to work to wind up the strip, and at the same time drives the strip to move in the installation box 2. Meanwhile, the heating mechanism and the rapid cooling mechanism cooperate to perform continuous annealing processing on the strip, greatly improving the annealing effect by heating.

[0057] The above has described a specific embodiment of the present invention in detail. However, the content described is only the preferred embodiment of the present invention and cannot be considered as limiting the scope of implementation of the present invention. Any equivalent changes and improvements made within the scope of the application of the present invention should still fall within the scope covered by the patent of the present invention.

Claims

1. A continuous heating annealing process for ultra-thin titanium and titanium alloy strips, characterized in that: The following steps are involved: Step 1: placing the strip into a heating annealing device, then evacuating the heating annealing device and filling the heating annealing device with argon gas; Step 2: The strip is uniformly heated to 800°C in the heating annealing device, then maintained at 700°C in the slow cooling section, and then rapidly cooled to 40°C in the rapid cooling end of the heating annealing device; Step 3: The strip after heating and cooling annealing is rolled up by the heating annealing device, and then the heating annealing device is opened to take out the annealed strip.

2. The continuous heating annealing device for ultra-thin titanium and titanium alloy strips according to claim 1 is characterized in that: The heating annealing device comprises a mounting platform (1), a mounting box (2) is fixedly connected to the mounting platform (1), and a plurality of guide rollers (3) are rotatably connected inside the mounting box (2); A material unwinding and pulling mechanism, the material unwinding and pulling mechanism being arranged in the installation box (2), and the material unwinding and pulling mechanism being used for unwinding the strip material and automatically pulling the strip material onto a receiving roller (4); A heating mechanism, the heating mechanism is arranged in the installation box (2), and the heating mechanism is used to heat and anneal the strip; A rapid cooling mechanism is provided in the installation box (2) and is used for rapidly cooling and annealing the heated strip.

3. The continuous heating annealing device for ultra-thin titanium and titanium alloy strips according to claim 2 is characterized in that: The material unloading pulling mechanism comprises two material unloading rollers (11) rotatably connected to the installation box (2); a plurality of transmission tubes (12) are slidably connected in the installation box (2); one end of the transmission tube (12) is fixedly connected to a first electric telescopic rod (13) fixedly connected to the installation box (2) via a connecting rod; one end of the transmission tube (12) is fixedly connected to a fixing block (14); a first fixing mechanism is arranged in the fixing block (14); the outer surfaces of two of the fixing blocks (14) are slidably connected to a mounting block (15); the mounting block A plurality of fixing grooves (16) are provided on the mounting block (15), the first fixing mechanism is used to fix the mounting block (15), a clamping roller (17) is rotatably connected between the two mounting blocks (15), a clamping groove (18) is provided on the outer surface of the clamping roller (17), a clamping plate (19) is fixedly connected in the clamping groove (18), a spring (190) fixedly connected to the clamping groove (18) is fixedly connected to one side of the clamping plate (19), and a second fixing mechanism connected to the receiving roller (4) is provided on the mounting box (2).

4. The continuous heating annealing device for ultra-thin titanium and titanium alloy strips according to claim 3 is characterized in that: The first fixing mechanism comprises a second electric telescopic rod (21) fixedly connected to the transmission tube (12); one end of the second electric telescopic rod (21) is fixedly connected to a transmission rod (22) slidably connected to both the transmission tube (12) and the mounting block (15); one end of the transmission rod (22) is fixedly connected to a transmission inclined block (23); one side of the transmission inclined block (23) is slidably connected to a clamping block (24) slidably connected to the mounting block (15).

5. The continuous heating annealing device for ultra-thin titanium and titanium alloy strips according to claim 3 is characterized in that: The second fixing mechanism comprises a third electric telescopic rod (31) fixedly connected to the installation box (2), one end of the third electric telescopic rod (31) is fixedly connected to a connecting plate (32), the top of the connecting plate (32) is fixedly connected to an extrusion block (33), and an extrusion groove (34) is provided on the outer surface of the receiving roller (4).

6. The continuous heating annealing device for ultra-thin titanium and titanium alloy strips according to claim 1 is characterized in that: The heating mechanism comprises a first transmission motor (41) fixedly connected to the installation box (2); the output end of the first transmission motor (41) is fixedly connected to a first transmission shaft (42) via a coupling; the outer surface of the first transmission shaft (42) is connected to a mounting tube (43) rotatably connected to the installation box (2) via a transmission wheel and a transmission belt; the outer surface of the mounting tube (43) is fixedly connected to a plurality of electric heating tubes (44); a first fan blade (45) fixedly sleeved with the first transmission shaft (42) is arranged above the electric heating tube (44); a slow cooling heating mechanism connected to the mounting tube (43) is arranged in the installation box (2); the slow cooling heating mechanism is used for performing slow cooling annealing on the strip.

7. The continuous heating annealing device for ultra-thin titanium and titanium alloy strips according to claim 6 is characterized in that: The slow cooling and heating mechanism comprises a first connecting tube (51) rotatably connected to a mounting tube (43); a second transmission shaft (52) rotatably connected to the first connecting tube (51) is rotatably connected inside the mounting tube (43); the first transmission shaft (42) and the second transmission shaft (52) are connected in a transmission manner via a transmission wheel and a transmission belt; a second fan blade (53) is fixedly sleeved on the outer surface of the second transmission shaft (52); a second connecting tube (54) is fixedly connected to the outer surface of the first connecting tube (51); two third connecting tubes (55) are fixedly connected to the outer surface of the second connecting tube (54); a plurality of blowing tubes (56) are fixedly connected to the outer surface of the third connecting tube (55); and a plurality of blowing hoods (57) are fixedly connected to the outer surface of the blowing tube (56).

8. The continuous heating annealing device for ultra-thin titanium and titanium alloy strips according to claim 2 is characterized in that: The rapid cooling mechanism comprises a cooling box (61) fixedly connected to the mounting box (2); the top and bottom of the cooling box (61) are both fixedly connected to fourth connecting pipes (62); the outer surface of the fourth connecting pipe (62) is obliquely provided with a plurality of heat dissipation pipes (63); a fifth connecting pipe (64) is fixedly connected between two of the fourth connecting pipes (62); the top of the mounting platform (1) is fixedly connected to a water cooling box (65); a cooling elbow (64) is fixedly connected inside the water cooling box (65); 66), the fifth connecting pipe (64) is fixedly connected to the bottom end of the cooling bend pipe (66), the cooling box (61) is fixedly connected to a sixth connecting pipe (67), both ends of the sixth connecting pipe (67) are fixedly connected to suction pipes (68), the outer surface of the suction pipe (68) is fixedly connected to a seventh connecting pipe (69) fixedly connected to the top end of the cooling bend pipe (66), and the seventh connecting pipe (69) is provided with a suction fan (690) fixedly connected to the water cooling box (65).

9. The continuous heating annealing device for ultra-thin titanium and titanium alloy strips according to claim 8 is characterized in that: The outer surface of the water cooling box (65) is fixedly connected to a water cooling machine (691) fixedly connected to the mounting platform (1) via a water pump and a pipeline, the top of the water cooling box (65) is fixedly connected to a second transmission motor (692), and the output end of the second transmission motor (692) is fixedly connected to a stirring rod (693) rotatably connected to the water cooling box (65) via a coupling.

10. The continuous heating annealing device for ultra-thin titanium and titanium alloy strips according to claim 8, characterized in that: The top of the mounting platform (1) is fixedly connected to an argon gas tank (71), and the top of the argon gas tank (71) is fixedly connected to the mounting box (1) via an air pump and a pipeline. The top of the mounting platform (1) is fixedly connected to a vacuum pump (72), and the vacuum pump (72) is connected to the mounting box (2) via a pipeline.

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