Bright annealing structure for titanium alloy foil

Abstract

The utility model discloses a bright annealing structure for titanium alloy foil, and relates to the field of annealing processing. The bright annealing structure for the titanium alloy foil comprises a processing box and further comprises a heating cavity and a cooling cavity which are arranged in the processing box, a preheating box communicated with the heating cavity is fixedly connected to the processing box, and the preheating box is arranged in an opening mode; the two heat conduction rollers are symmetrically and rotationally connected in the preheating box, and heat conduction cavities are formed in the two heat conduction rollers. By means of the cooling medium circulating mechanism, a cooling medium obtained after the foil is cooled by the cooling pipe and heated preheats the foil on the heat conduction rollers, waste heat is efficiently recycled, preheating energy consumption is reduced, the energy utilization rate is increased, and cost is reduced; and the multi-section S-shaped cooling pipe increases the contact area, prolongs the contact time, improves the cooling efficiency, provides more heat for waste heat recovery, and further strengthens the efficient utilization of energy.

Description

Technical Field

[0001] This utility model belongs to the field of annealing technology, specifically, it relates to a bright annealing structure for titanium alloy foil. Background Technology

[0002] In the field of materials processing, as various industries continue to raise their requirements for material performance, titanium alloy foil, due to its excellent properties such as high strength, low density, and good corrosion resistance, is being used more and more widely in many high-end fields such as aerospace, medical devices, and electronics. At the same time, attention is also increasing to the processing quality and energy efficiency of titanium alloy foil.

[0003] Currently, annealing titanium alloy foil is one of the important means to improve its performance. Common annealing equipment usually puts the foil directly into the heating chamber for heating, and then cools it in the cooling chamber. The heating process mostly relies on external heating sources, such as electric heating elements, while cooling is done by air cooling or liquid cooling. In the cooling stage, the cooling medium is usually directly discharged or simply recycled after completing the cooling task of the foil, without making full use of the residual heat it carries. Moreover, traditional cooling pipes are mostly simple straight pipe structures, with limited contact area and short contact time between the cooling medium and the foil, resulting in low cooling efficiency. In view of this, this utility model is proposed. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a bright annealing structure for titanium alloy foil that can overcome or at least partially solve the above problems.

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0006] A bright annealing structure for titanium alloy foil includes a processing box, and further includes: a heating chamber and a cooling chamber disposed within the processing box, wherein a preheating box connected to the heating chamber is fixedly connected to the processing box and is open; two heat-conducting rollers symmetrically rotatably connected within the preheating box, wherein each heat-conducting roller has a heat-conducting cavity, and both ends of each heat-conducting roller are provided with a rotary joint, the heat-conducting cavities of the two heat-conducting rollers are connected through a branch pipe, the branch pipe being disposed on a rotary joint at one end of each heat-conducting roller, and a second and a third liquid inlet pipe, respectively, connected to the heat-conducting cavity, disposed on the rotary joint at the end of each heat-conducting roller away from the branch pipe; a cooling pipe connected within the cooling cavity, wherein the cooling pipe contacts the surface of the foil passing through the cooling cavity, and the end of the second liquid inlet pipe away from the heat-conducting roller is connected to the output end of the cooling pipe; and a cooling medium circulation mechanism disposed on the processing box and used to supply cooling medium to the input end of the cooling pipe.

[0007] The cooling medium cools and lowers the temperature of the foil material through the cooling pipe, and then preheats the foil material when it passes through the heat-conducting cavity in the heat-conducting roller. Finally, it flows back into the cooling medium circulation mechanism through the liquid delivery pipe.

[0008] Preferably, two sets of receiving wheels are rotatably connected inside the heating chamber. The two sets of receiving wheels are distributed vertically and staggered. Each set of receiving wheels has multiple wheels equidistantly arranged. The receiving wheels are used to receive the foil material to be annealed. Reversing wheels for reversing the direction of the foil material are rotatably connected inside both the heating chamber and the cooling chamber. Two sets of guide wheels are rotatably connected inside the cooling chamber. The two sets of guide wheels are symmetrically arranged, and each set of guide wheels has multiple wheels equidistantly arranged. The processing box has a material inlet communicating with the heating chamber and the cooling chamber. The side wall of the processing box has a material outlet communicating with the cooling chamber.

[0009] In order to heat and anneal the foil material passing through the heating chamber, an electric heating wire mesh is further provided between each pair of adjacent receiving wheels, and the electric heating wire mesh is fixedly installed on the inner walls of the upper and lower ends of the heating chamber.

[0010] Preferably, the cooling medium circulation mechanism includes a liquid storage tank and a liquid pump. The liquid storage tank and the liquid pump are both fixedly installed on the processing box. The input end of the liquid pump is connected to the liquid storage tank, and the output end is connected to the input end of the cooling pipe through a liquid delivery pipe. The end of the liquid delivery pipe away from the heat-conducting roller is connected to the liquid storage tank.

[0011] In order to cool down the foil after annealing, preferably, the processing box is provided with a hollow cavity, the top inner wall of the cooling cavity is provided with an air jet hole that communicates with the hollow cavity, and a booster pump is fixedly installed on the processing box, the output end of the booster pump is connected to the hollow cavity through an air supply pipe.

[0012] Furthermore, the diameter of the air inlet of the jet hole is larger than the diameter of the air outlet.

[0013] In order to further filter and purify the external gas passing through the input end of the booster pump, an activated carbon filter element is further provided inside the input end of the booster pump.

[0014] To increase the time the cooling medium flows through the cooling pipe, the cooling pipe is preferably arranged in a multi-segment S-shape.

[0015] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art:

[0016] This invention achieves efficient recovery and utilization of waste heat from the cooling medium through a cooling medium circulation mechanism. After the cooling medium cools the foil material and raises its temperature in the cooling pipe, it preheats the foil material in the heat-conducting roller, reducing the reliance on additional energy in the preheating process, greatly improving energy utilization efficiency, and reducing production costs. Furthermore, the multi-segment S-shaped cooling pipes increase the cooling efficiency by increasing the contact area and extending the contact time during the cooling process, allowing the cooling medium to absorb the heat from the foil material more fully. As a result, more heat can be utilized during waste heat recovery and preheating, further enhancing the efficient utilization of energy. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model. Figure 1 ;

[0018] Figure 2 This is a cross-sectional view of the processing box of this utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the processing box of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of this utility model. Figure 2 ;

[0021] Figure 5 This is a cross-sectional view of the preheating box and heat-conducting roller of this utility model;

[0022] Figure 6 This is a partial structural schematic diagram of the present invention;

[0023] Figure 7 This is a utility model Figure 2 Enlarged view of part A in the middle.

[0024] In the diagram: 1. Processing box; 101. Heating chamber; 102. Cooling chamber; 103. Receiving wheel; 104. Reversing wheel; 105. Guide wheel; 2. Electric heating wire mesh; 3. Hollow cavity; 301. Air jet; 302. Booster pump; 303. Gas delivery pipe; 304. Activated carbon filter element; 4. Cooling pipe; 401. Liquid storage tank; 402. Liquid pump; 403. Liquid delivery pipe one; 404. Liquid delivery pipe two; 405. Preheating box; 406. Heat-conducting roller; 407. Heat-conducting chamber; 408. Branch pipe; 409. Liquid delivery pipe three. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0026] Example 1:

[0027] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 A bright annealing structure for titanium alloy foil includes a processing box 1, and further includes: a heating chamber 101 and a cooling chamber 102 disposed within the processing box 1. A preheating box 405, connected to the heating chamber 101 and having an open shape, is fixedly connected to the processing box 1. Two heat-conducting rollers 406 are symmetrically rotatably connected within the preheating box 405. Each heat-conducting roller 406 has a heat-conducting cavity 407. Rotary joints are provided at both ends of each heat-conducting roller 406. The heat-conducting cavities 407 within the two heat-conducting rollers 406 are connected via branch pipes 408. The branch pipes 408 are disposed on the rotary joints at one end of each heat-conducting roller 406. The two heat-conducting rollers 406 are located away from the branch pipes 408. The rotary joint at one end of 08 is respectively provided with a second liquid delivery pipe 404 and a third liquid delivery pipe 409 connected to the heat conduction cavity 407; a cooling pipe 4 is connected inside the cooling cavity 102, wherein the cooling pipe 4 contacts the surface of the foil material passing through the cooling cavity 102, and the end of the second liquid delivery pipe 404 away from the heat conduction roller 406 is connected to the output end of the cooling pipe 4; a cooling medium circulation mechanism is provided on the processing box 1 and is used to deliver cooling medium to the input end of the cooling pipe 4, wherein the cooling medium cools and heats the foil material after passing through the cooling pipe 4, and then preheats the foil material when passing through the heat conduction cavity 407 inside the heat conduction roller 406, and then flows back into the cooling medium circulation mechanism through the third liquid delivery pipe 409.

[0028] Two sets of receiving wheels 103 are rotatably connected inside the heating chamber 101. The two sets of receiving wheels 103 are distributed vertically and staggered. Each set of receiving wheels 103 has multiple wheels equidistantly arranged. The receiving wheels 103 are used to receive the foil material to be annealed. Reversing wheels 104 for reversing the foil material are rotatably connected inside both the heating chamber 101 and the cooling chamber 102. Two sets of guide wheels 105 are rotatably connected inside the cooling chamber 102. The two sets of guide wheels 105 are symmetrically arranged, and each set of guide wheels 105 has multiple wheels equidistantly arranged. The processing box 1 has a material inlet that communicates with the heating chamber 101 and the cooling chamber 102. The side wall of the processing box 1 has a material outlet that communicates with the cooling chamber 102.

[0029] An electric heating wire mesh 2 is provided between each pair of adjacent receiving wheels 103. The electric heating wire mesh 2 is fixedly installed on the inner walls of the upper and lower ends of the heating chamber 101.

[0030] The cooling medium circulation mechanism includes a liquid storage tank 401 and a liquid pump 402. Both the liquid storage tank 401 and the liquid pump 402 are fixedly installed on the processing box 1. The input end of the liquid pump 402 is connected to the liquid storage tank 401, and the output end is connected to the input end of the cooling pipe 4 through the first liquid delivery pipe 403. The end of the third liquid delivery pipe 409 away from the heat-conducting roller 406 is connected to the liquid storage tank 401.

[0031] Cooling pipe 4 is arranged in a multi-segment S-shape.

[0032] In the feeding and preheating process: First, the unwinding mechanism and the rewinding mechanism unwind the foil to be processed and rewind the annealed foil. Then, the unwinding mechanism and the rewinding mechanism are started, so that the receiving wheel 103, the reversing wheel 104, and the guide wheel 105 are passively rotated under the friction of the foil, ensuring that the titanium alloy foil is released smoothly and accurately into the preheating box 405. It passes between the two heat-conducting rollers 406. The liquid pump 402 is started, and the liquid pump 402 draws the cooling medium in the storage tank 401 at a stable flow rate. It is sent to the cooling pipe 4, which is arranged in a multi-segment S-shape, through the liquid delivery pipe 403. This greatly increases the contact area between the cooling medium and the foil. The cooling medium flows in the meandering pipe and makes full contact with the lower surface of the foil. Based on the principle of heat conduction, it absorbs the heat of the foil more efficiently to achieve cooling and heats up itself. The heated cooling medium flows into the heat conduction cavity 407 of the heat conduction roller 406. As the heat conduction roller 406 rotates, the cooling medium flows evenly and transfers the waste heat to the foil by heat conduction to achieve preheating. This process efficiently recovers the waste heat of the cooling medium, reduces the extra energy consumption of preheating, and improves the energy utilization rate. Afterward, the temperature of the cooling medium decreases and flows back to the storage tank 401 through the infusion pipe 409 to prepare for the next cycle.

[0033] Heating process: The preheated foil is interlaced and wound around the receiving wheel 103 of the heating chamber 101. The receiving wheel 103 rotates at a stable and synchronous speed, driving the foil to be smoothly transported forward. After the electric heating wire mesh 2 is powered on, it efficiently and uniformly heats the foil between adjacent receiving wheels 103 from the top and bottom directions based on the principle of resistance heating. Its top and bottom distribution design, combined with the interlaced layout of the receiving wheels 103, makes the foil uniformly heated in the thickness and length directions, so that the set annealing temperature can be reached quickly.

[0034] Reversing and Cooling Process: After heating, the foil reaches the end of the heating chamber 101. The reversing wheel 104 changes the direction of foil transport, allowing it to enter the cooling chamber 102. The foil first passes through the guide wheel 105, which smoothly transports the foil to the multi-segment S-shaped cooling pipe 4. At this time, the new cooling medium enters the multi-segment S-shaped cooling pipe 4 under the action of the liquid pump 402. It fully contacts the lower surface of the foil in the tortuous pipe and absorbs the heat of the foil through heat conduction, efficiently cooling the foil. The heated cooling medium then flows into the heat-conducting roller 406 and heat-conducting chamber 407 to preheat the foil, repeating the waste heat recovery process. Subsequently, the cooling medium cools down and flows back.

[0035] The multi-segment S-shaped cooling pipe 4 not only increases the cooling area but also extends the contact time between the cooling medium and the foil, making the cooling process more thorough and uniform, further stabilizing the annealing effect. Then, the cooled foil continues to be smoothly transported under the passive rotation of the guide wheel 105 and is smoothly pulled out from the outlet.

[0036] Example 2:

[0037] Reference Figure 2 , Figure 3 , Figure 7 A bright annealing structure for titanium alloy foil is basically the same as that in Example 1. Furthermore, a hollow cavity 3 is provided on the processing box 1, and an air jet 301 communicating with the hollow cavity 3 is provided on the top inner wall of the cooling cavity 102. A booster pump 302 is fixedly installed on the processing box 1, and the output end of the booster pump 302 is connected to the hollow cavity 3 through an air supply pipe 303.

[0038] The diameter of the air inlet end of the jet nozzle 301 is larger than the diameter of the air outlet end.

[0039] During the annealing process of the foil, the booster pump 302 is started. After the booster pump 302 pressurizes the gas, it is ejected at high speed from the jet hole 301. Since the diameter of the air inlet end of the jet hole 301 is larger than the diameter of the air outlet end, the gas is accelerated during the ejection process according to the principle of fluid mechanics. The high-speed airflow blows evenly on the surface of the foil, which greatly accelerates the heat convection and heat dissipation. In conjunction with the cooling effect of the cooling pipe 4, the foil can be quickly cooled to a suitable temperature range. This not only improves the cooling efficiency but also ensures the uniformity of the foil cooling, further improving the quality and performance stability of the foil.

[0040] Example 3:

[0041] Reference Figure 2 , Figure 3 A bright annealing structure for titanium alloy foil is basically the same as in Example 1, but further, an activated carbon filter element 304 is provided in the input end of the booster pump 302.

[0042] When gas enters the booster pump 302, it first passes through the activated carbon filter element 304. The activated carbon has a highly developed pore structure and rich microporous organization. These microporous organizations build a strong adsorption force field. When the gas comes into contact with it, impurities, odors and other substances in the gas will be adsorbed into the micropores by the adsorption force field of the activated carbon micropores, thus purifying the gas and ensuring that the gas entering the booster pump 302 is clean.

[0043] Then, the purified gas enters the booster pump 302 and is pressurized. It then enters the hollow cavity 3 through the gas pipe 303 and is ejected from the jet hole 301 to act on the foil surface. On the one hand, the purified gas can protect the internal components of the booster pump 302, reduce the probability of wear and failure caused by impurities, extend the service life of the booster pump 302, and reduce equipment maintenance costs. On the other hand, the clean gas blown onto the foil surface avoids the contamination of the foil surface by impurities, ensuring the cleanliness and quality of the foil surface.

[0044] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model.

Claims

1. A bright annealing installation for titanium alloy foils comprising a processing box (1), characterized in that, Also includes: The heating chamber (101) and cooling chamber (102) are provided in the processing box (1), wherein a preheating box (405) connected to the heating chamber (101) is fixedly connected to the processing box (1), and the preheating box (405) is open. Two heat-conducting rollers (406) are symmetrically rotatably connected inside the preheating box (405). Among them, the two heat-conducting rollers (406) are provided with heat-conducting cavities (407), and both ends of the two heat-conducting rollers (406) are provided with rotary joints. The heat-conducting cavities (407) in the two heat-conducting rollers (406) are connected through branch pipes (408). The branch pipes (408) are provided on the rotary joints at one end of the heat-conducting rollers (406). The rotary joints at the ends of the two heat-conducting rollers (406) away from the branch pipes (408) are respectively provided with infusion pipes two (404) and three (409) that are connected to the heat-conducting cavities (407). A cooling pipe (4) is connected inside the cooling chamber (102), wherein the cooling pipe (4) is in contact with the surface of the foil material passing through the cooling chamber (102), and the end of the liquid delivery pipe (404) away from the heat-conducting roller (406) is connected to the output end of the cooling pipe (4); A cooling medium circulation mechanism is provided on the processing box (1) and is used to supply cooling medium to the input end of the cooling pipe (4). The cooling medium cools and heats the foil material through the cooling pipe (4), and then preheats the foil material through the heat-conducting cavity (407) in the heat-conducting roller (406). Then it flows back into the cooling medium circulation mechanism through the liquid delivery pipe (409).

2. The bright annealing structure for titanium alloy foil according to claim 1, wherein Two sets of receiving wheels (103) are rotatably connected inside the heating chamber (101). The two sets of receiving wheels (103) are distributed vertically and staggered. Each set of receiving wheels (103) has multiple wheels equidistantly arranged. The receiving wheels (103) are used to receive the foil material to be annealed. Both the heating chamber (101) and the cooling chamber (102) are rotatably connected to reversing wheels (104) for reversing the foil material. Two sets of guide wheels (105) are rotatably connected inside the cooling chamber (102). The two sets of guide wheels (105) are symmetrically arranged, and each set of guide wheels (105) has multiple wheels equidistantly arranged. The processing box (1) has a material inlet that communicates with the heating chamber (101) and the cooling chamber (102). The side wall of the processing box (1) has a material outlet that communicates with the cooling chamber (102).

3. The bright annealing structure for titanium alloy foil according to claim 2, characterized in that, An electric heating wire mesh (2) is provided between each pair of adjacent receiving wheels (103), and the electric heating wire mesh (2) is fixedly installed on the inner walls of the upper and lower ends of the heating chamber (101).

4. The bright annealing structure for titanium alloy foil according to claim 1, characterized in that, The cooling medium circulation mechanism includes a liquid storage tank (401) and a liquid pump (402). The liquid storage tank (401) and the liquid pump (402) are both fixedly installed on the processing box (1). The input end of the liquid pump (402) is connected to the liquid storage tank (401), and the output end is connected to the input end of the cooling pipe (4) through the first liquid delivery pipe (403). The end of the third liquid delivery pipe (409) away from the heat-conducting roller (406) is connected to the liquid storage tank (401).

5. The bright annealing structure for titanium alloy foil according to claim 1, characterized in that, The processing box (1) has a hollow cavity (3), and the cooling cavity (102) has an air jet hole (301) connected to the hollow cavity (3) on its top inner wall. A booster pump (302) is fixedly installed on the processing box (1), and the output end of the booster pump (302) is connected to the hollow cavity (3) through an air supply pipe (303).

6. The bright annealing structure for titanium alloy foil according to claim 5, characterized in that, The diameter of the air inlet end of the jet hole (301) is larger than the diameter of the air outlet end.

7. The bright annealing structure for titanium alloy foil according to claim 5, characterized in that, An activated carbon filter element (304) is installed inside the input end of the booster pump (302).

8. The bright annealing structure for titanium alloy foil according to claim 1, characterized in that, The cooling pipe (4) is arranged in a multi-segment S-shape.

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