Argon protection vacuum dual-purpose annealing furnace for titanium-nickel memory alloy

Abstract

The utility model belongs to the field of annealing furnaces, in particular relates to a titanium-nickel memory alloy argon protection vacuum dual-purpose annealing furnace, and aims to solve the problems that the existing protective atmosphere chemical reaction is relatively strong, the titanium-nickel memory alloy argon protection vacuum dual-purpose annealing furnace is possibly dissolved in metal at high temperature and the heating efficiency is reduced, and the traditional annealing furnace is manually opened, the temperature is relatively high and the danger of scalding is possibly caused. According to the technical scheme, the device comprises a furnace body, the upper surface of the furnace body is fixedly connected with a vacuum pump, the air suction end of the vacuum pump is fixedly communicated with a vacuum pipe, the vacuum pipe is fixedly communicated with the furnace body, one side of the furnace body is slidably connected with a furnace door, and the upper surface of the furnace body is fixedly communicated with a filling pipe; the rotating rod drives the two rotating discs to rotate synchronously, the rotating discs drive the steel wire ropes to descend, and the two steel wire ropes drive the furnace door to descend, so that manual opening or closing of the furnace door is avoided, oxygen can be isolated, meanwhile, the furnace door can serve as a heat transfer medium, and uniform heating of the titanium-nickel memory alloy is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of annealing furnaces, in particular to a titanium-nickel memory alloy argon gas protection vacuum dual-purpose annealing furnace. Background Art

[0002] Titanium-nickel alloy is the most superior and widely used shape memory alloy material. Titanium-nickel alloy has good ductility, shape memory strength, strain, corrosion resistance, resistance and stability. Titanium-nickel memory alloy needs to be annealed in an annealing furnace during processing to enhance its performance. During annealing, the furnace needs to be vacuumed and filled with a protective atmosphere to isolate oxygen. At the same time, the protective atmosphere can be used as a heat transfer medium, which is conducive to uniform heating.

[0003] Common protective atmospheres include water vapor, alcohol gas, nitrogen, hydrogen, etc. However, the chemical reactions of the above-mentioned protective atmospheres are relatively strong and may dissolve in the metal at high temperatures, reducing the heating efficiency. The traditional annealing furnace door opening method is manual, the temperature is high, and there may be a risk of burns. Utility Model Content

[0004] The utility model aims to solve the problems existing in the prior art that the chemical reaction of some protective atmospheres is relatively strong, and they may be dissolved in metals at high temperatures, thereby reducing the heating efficiency; the traditional annealing furnace door opening method is manual, the temperature is high, and there may be danger of scalding. The utility model proposes a titanium-nickel memory alloy argon gas protection vacuum dual-purpose annealing furnace.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A titanium-nickel memory alloy argon-protected vacuum dual-purpose annealing furnace comprises a furnace body, the upper surface of the furnace body is fixedly connected to a vacuum pump, the suction end of the vacuum pump is fixedly connected to a vacuum tube, the vacuum tube is fixedly connected to the furnace body, a furnace door is slidably connected to one side of the furnace body, the upper surface of the furnace body is fixedly connected to a filling tube, and the gas in the filling tube is argon;

[0007] A heater is fixedly connected to one side of the furnace body, and thermal insulation walls are fixedly connected to the inner walls on both sides of the furnace body respectively, and heating wires are fixedly connected to the inside of the thermal insulation walls, and a plurality of the heating wires are electrically connected to the heater;

[0008] A lifting assembly is arranged on the upper surface of the furnace body and is used for opening and closing the furnace door.

[0009] In a possible design, the lifting assembly includes a rotating rod and a motor, the rotating rod is rotatably connected to the upper surface of the furnace body, the motor is fixedly connected to one side of the furnace body, the circumference of the rotating rod is fixedly connected to two rotating disks, the interior of the rotating disks are fixedly connected to steel wire ropes, one end of the two steel wire ropes are fixedly connected to the furnace door, one end of the motor output shaft is fixedly connected to the second sprocket, one end of the rotating rod is fixedly connected to the first sprocket, and the first sprocket and the second sprocket are connected by a chain transmission.

[0010] In a possible design, a fixing frame is fixedly connected to the interior of the furnace body, a plurality of mounting plates are provided inside the fixing frame, the plurality of mounting plates are used to place the titanium-nickel memory alloy, the plurality of mounting plates and the fixing frame are fixedly connected by pins, a plurality of through holes are provided inside the fixing frame, and the pin is inserted into one of the through holes.

[0011] In a possible design, one end of the rotating rod away from the first sprocket is fixedly connected to a counterweight.

[0012] In a possible design, a vacuum gauge is fixedly connected to the interior of the furnace body, and a vacuum valve is fixedly connected to the circumference of the vacuum tube.

[0013] In a possible design, a guardrail is fixedly connected to one side of the furnace body, and the counterweight is located inside the guardrail.

[0014] In the present application, when in use, the titanium-nickel memory alloy to be annealed is placed on the mounting plate, the height of the mounting plate can be adjusted according to the size of the titanium-nickel memory alloy, the mounting plate is adjusted to a suitable position, and the pins are inserted into different through holes to facilitate the placement of titanium-nickel memory alloys of different sizes and improve the uniformity of heating;

[0015] When the furnace door is closed, the motor drives the second sprocket to rotate, the second sprocket drives the first sprocket to rotate through the chain, the first sprocket drives the rotating rod to rotate, the rotating rod drives the two rotating disks to rotate synchronously, the rotating disk drives the wire rope to descend, and the two wire ropes drive the furnace door to descend, thus avoiding manual opening or closing of the furnace door, which is safer. The counterweight block can improve the stability of the rotation of the rotating rod, so that the furnace body and the furnace door form a sealed environment;

[0016] When the furnace body is vacuumed, the vacuum pump draws air from the furnace body through the vacuum tube, and the pressure value inside the furnace body is checked through the vacuum gauge. After reaching a certain pressure value, the vacuum valve is closed, and argon is filled into the furnace body through the filling tube, which can isolate oxygen and serve as a heat transfer medium, which is conducive to uniform heating of the titanium-nickel memory alloy.

[0017] The furnace body can be used as a vacuum furnace or an argon protection annealing furnace during use.

[0018] In the utility model, the titanium-nickel memory alloy argon protection vacuum dual-purpose annealing furnace, through the setting of the lifting component, the rotating rod drives the two rotating disks to rotate synchronously, the rotating disk drives the steel wire rope to descend, and the two steel wire ropes drive the furnace door to descend, thereby avoiding manual opening or closing of the furnace door;

[0019] In the utility model, the titanium-nickel memory alloy argon gas protection vacuum dual-purpose annealing furnace can isolate oxygen through the arrangement of the filling pipe, and can also be used as a heat transfer medium, which is conducive to uniform heating of the titanium-nickel memory alloy. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the main structure of the titanium-nickel memory alloy argon gas protection vacuum dual-purpose annealing furnace proposed by the utility model;

[0021] Figure 2 It is a rear view structural schematic diagram of the titanium-nickel memory alloy argon gas protection vacuum dual-purpose annealing furnace proposed by the utility model;

[0022] Figure 3 It is a side view and cross-sectional structure schematic diagram of the titanium-nickel memory alloy argon protection vacuum dual-purpose annealing furnace proposed by the utility model;

[0023] Figure 4 The utility model discloses a lifting component structure schematic diagram of a titanium-nickel memory alloy argon-protected vacuum dual-purpose annealing furnace.

[0024] In the figure: 1. furnace body; 2. vacuum pump; 3. vacuum tube; 4. vacuum gauge; 5. furnace door; 6. heater; 7. counterweight; 8. guardrail; 9. vacuum valve; 10. rotating rod; 11. insulation wall; 12. heating wire; 13. fixing frame; 14. mounting plate; 15. latch; 16. motor; 17. rotating disk; 18. wire rope; 19. first sprocket; 20. second sprocket; 21. filling tube. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] Example 1

[0027] Reference Figure 1-Figure 4 The argon-protected vacuum dual-purpose annealing furnace comprises: a furnace body 1, a vacuum pump 2 is fixedly connected to the upper surface of the furnace body 1, a vacuum tube 3 is fixedly connected to the suction end of the vacuum pump 2, the vacuum tube 3 is fixedly connected to the furnace body 1, a furnace door 5 is slidably connected to one side of the furnace body 1, a filling tube 21 is fixedly connected to the upper surface of the furnace body 1, and the gas in the filling tube 21 is argon gas;

[0028] A heater 6 is fixedly connected to one side of the furnace body 1, and insulation walls 11 are fixedly connected to the inner walls on both sides of the furnace body 1, and heating wires 12 are fixedly connected inside the insulation walls 11, and multiple heating wires 12 are electrically connected to the heater 6;

[0029] A lifting assembly, which is arranged on the upper surface of the furnace body 1 and is used for opening and closing the furnace door 5;

[0030] The lifting assembly includes a rotating rod 10 and a motor 16. The rotating rod 10 is rotatably connected to the upper surface of the furnace body 1. The motor 16 is fixedly connected to one side of the furnace body 1. Two rotating disks 17 are fixedly connected to the circumference of the rotating rod 10. Steel wire ropes 18 are fixedly connected to the inside of the rotating disks 17. One end of the two steel wire ropes 18 is fixedly connected to the furnace door 5. One end of the output shaft of the motor 16 is fixedly connected to the second sprocket 20. One end of the rotating rod 10 is fixedly connected to the first sprocket 19. The first sprocket 19 and the second sprocket 20 are connected by chain transmission.

[0031] In the above technical solution, when the furnace door 5 is closed, the motor 16 drives the second sprocket 20 to rotate, the second sprocket 20 drives the first sprocket 19 to rotate through the chain, the first sprocket 19 drives the rotating rod 10 to rotate, the rotating rod 10 drives the two rotating disks 17 to rotate synchronously, the rotating disk 17 drives the wire rope 18 to descend, and the two wire ropes 18 drive the furnace door 5 to descend, thereby avoiding manual opening or closing of the furnace door 5, which is safer, and the furnace body 1 and the furnace door 5 form a sealed environment. When the furnace body 1 is vacuumed, the vacuum pump 2 extracts air from the furnace body 1 through the vacuum tube 3, and the vacuum valve 9 is closed after reaching a certain pressure value, and argon is filled into the furnace body 1 through the filling tube 21, which can isolate oxygen and can be used as a heat transfer medium, which is conducive to uniform heating of the titanium-nickel memory alloy;

[0032] The furnace body 1 can be used as a vacuum furnace and also as an argon protection annealing furnace during use.

[0033] The present application can be used in the field of titanium-nickel memory alloys, and can also be used in other fields applicable to the present application.

[0034] Example 2

[0035] refer to Figure 3 , improved on the basis of Example 1:

[0036] Titanium-nickel memory alloy argon protection vacuum dual-purpose annealing furnace;

[0037] A fixing frame 13 is fixedly connected inside the furnace body 1, and a plurality of mounting plates 14 are arranged inside the fixing frame 13. The plurality of mounting plates 14 are used to place the titanium-nickel memory alloy. The plurality of mounting plates 14 and the fixing frame 13 are fixedly connected by bolts 15 respectively. A plurality of through holes are arranged inside the fixing frame 13, and the bolt 15 is inserted into one of the through holes.

[0038] In the above technical solution, the titanium-nickel memory alloy to be annealed is placed on the mounting plate 14. The height of the mounting plate 14 can be adjusted according to the size of the titanium-nickel memory alloy. The mounting plate 14 is adjusted to a suitable position and inserted into different through holes through the pins 15, which facilitates the placement of titanium-nickel memory alloys of different sizes and improves the uniformity of heating.

[0039] refer to Figure 1 , one end of the rotating rod 10 away from the first sprocket 19 is fixedly connected with a counterweight 7;

[0040] In the above technical solution, the counterweight block 7 can improve the rotation stability of the rotating rod 10 .

[0041] refer to Figure 1 A vacuum gauge 4 is fixedly connected to the interior of the furnace body 1, and a vacuum valve 9 is fixedly connected to the circumference of the vacuum tube 3;

[0042] In the above technical solution, the vacuum gauge 4 is convenient for checking the pressure value inside the furnace body 1 , and the vacuum valve 9 is convenient for controlling the flow and closing of the vacuum tube 3 .

[0043] refer to Figure 1 A guardrail 8 is fixedly connected to one side of the furnace body 1, and the counterweight 7 is located inside the guardrail 8;

[0044] In the above technical solution, the guardrail 8 is convenient for protecting the counterweight 8 to prevent it from shaking.

[0045] However, as is well known to those skilled in the art, the working principles and wiring methods of the motor 16 and the heater 6 are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art may make any optional selections according to their needs or convenience.

[0046] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. Titanium-nickel memory alloy argon protection vacuum dual-purpose annealing furnace, characterized in that: include: A furnace body (1), wherein a vacuum pump (2) is fixedly connected to the upper surface of the furnace body (1), a vacuum tube (3) is fixedly connected to the suction end of the vacuum pump (2), the vacuum tube (3) is fixedly connected to the furnace body (1), a furnace door (5) is slidably connected to one side of the furnace body (1), and a filling tube (21) is fixedly connected to the upper surface of the furnace body (1), and the gas in the filling tube (21) is argon gas; A heater (6) is fixedly connected to one side of the furnace body (1), and thermal insulation walls (11) are fixedly connected to the inner walls on both sides of the furnace body (1), and heating wires (12) are fixedly connected inside the thermal insulation walls (11), and a plurality of the heating wires (12) are electrically connected to the heater (6); A lifting assembly is arranged on the upper surface of the furnace body (1), and is used for opening and closing the furnace door (5).

2. The titanium-nickel memory alloy argon-protected vacuum dual-purpose annealing furnace according to claim 1, characterized in that: The lifting assembly comprises a rotating rod (10) and a motor (16); the rotating rod (10) is rotatably connected to the upper surface of the furnace body (1); the motor (16) is fixedly connected to one side of the furnace body (1); two rotating disks (17) are fixedly connected to the circumference of the rotating rod (10); the interior of each rotating disk (17) is fixedly connected to a steel wire rope (18); one end of each of the two steel wire ropes (18) is fixedly connected to the furnace door (5); one end of the output shaft of the motor (16) is fixedly connected to a second sprocket (20); one end of the rotating rod (10) is fixedly connected to a first sprocket (19); the first sprocket (19) and the second sprocket (20) are connected via a chain transmission.

3. The titanium-nickel memory alloy argon-protected vacuum dual-purpose annealing furnace according to claim 1, characterized in that: A fixing frame (13) is fixedly connected to the interior of the furnace body (1), a plurality of mounting plates (14) are provided inside the fixing frame (13), the plurality of mounting plates (14) are used to place titanium-nickel memory alloy, the plurality of mounting plates (14) and the fixing frame (13) are fixedly connected via latches (15), a plurality of through holes are provided inside the fixing frame (13), and the latch (15) is inserted into one of the through holes.

4. The titanium-nickel memory alloy argon-protected vacuum dual-purpose annealing furnace according to claim 2, characterized in that: One end of the rotating rod (10) away from the first sprocket (19) is fixedly connected to a counterweight block (7).

5. The titanium-nickel memory alloy argon-protected vacuum dual-purpose annealing furnace according to claim 1, characterized in that: A vacuum gauge (4) is fixedly connected to the interior of the furnace body (1), and a vacuum valve (9) is fixedly connected to the circumference of the vacuum tube (3).

6. The titanium-nickel memory alloy argon-protected vacuum dual-purpose annealing furnace according to claim 4, characterized in that: A guardrail (8) is fixedly connected to one side of the furnace body (1), and the counterweight (7) is located inside the guardrail (8).

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