A heat treatment device for high yield ratio bead wire

Abstract

The present invention provides a heat treatment device for high-yield-strength ratio tire bead wire, comprising a heat treatment support group and a heat treatment assembly. A base is provided on one side of the heat treatment support group, a pair of horizontally arranged cross frames are connected to the top of the base, and a heat treatment assembly is provided between the pair of cross frames. The present invention uses a heating roller to transport the steel wire. After the external electric heating plate at the top of the inner cavity of the upper heating cover is powered on, the steel wire transported into the top of the inner cavity of the heat treatment assembly is heated. The electric heating controller controls the internal electric heating plate to perform heating, thereby increasing the temperature of the heating roller body and providing auxiliary heating for the transported steel wire, thereby improving the heating efficiency of the steel wire. When the steel wire is transported to the bottom of the heating roller, it is immersed in the quenching liquid filled in the inner cavity of the lower heating cover for quenching treatment, thereby greatly improving the practicality of the heat treatment.

Description

Technical Field

[0001] The present invention relates to the technical field of bead wire processing, and in particular to a heat treatment device for bead wire with a high yield ratio. Background Art

[0002] Heat treatment can significantly improve the internal structure of the bead wire, thereby increasing its strength and toughness. Through heat treatment, the metallographic structure of the bead wire can be adjusted to give it better mechanical properties and fatigue resistance, which is crucial to the safety and durability of the tire.

[0003] For example, application number CN201822193971.9 discloses a heat treatment device for steel wire rod, comprising a heat treatment box, a cylindrical heat storage body provided between the front and rear inner walls of the heat treatment box, an upper heat storage block provided above the cylindrical heat storage body and a lower heat storage block provided below the cylindrical heat storage body, an arc-shaped groove provided at the bottom of the upper heat storage block and the top of the lower heat storage block, a first heat treatment channel and a second heat treatment channel formed between the upper heat storage block, the lower heat storage block and the cylindrical heat storage body, guide rollers provided at both ends of the first heat treatment channel and the second heat treatment channel, the heat treatment box of the device is provided with a first heat treatment channel and a second heat treatment channel, and the path and time of heat treatment of the steel wire in the heat treatment box are extended by heating the cylindrical heat storage body, the upper heat storage block and the lower heat storage block. However, the process of the device can only achieve the heating treatment of the steel wire, and does not achieve processes such as cooling and quenching of the steel wire, thereby reducing its practicality. Summary of the Invention

[0004] In order to solve the above problems, the present invention proposes a heat treatment device for high yield ratio bead wire to more accurately solve the above problems.

[0005] The present invention is achieved through the following technical solutions:

[0006] The present invention proposes a heat treatment device for high yield ratio tire bead wire, comprising a heat treatment bracket group and a heat treatment component, wherein a base is provided on one side of the heat treatment bracket group, a pair of horizontally arranged cross frames are connected to the top of the base, and a heat treatment component is provided between the pair of cross frames, and the heat treatment component comprises a heating roller, an upper heating cover and a lower heating cover, the heating roller is transferred to a pair of cross frames through the shaft ends at both ends, the top of the heating roller is provided with an upper heating cover, the bottom of the heating roller is provided with a lower heating cover, a pair of outer side walls of the cross frames are respectively provided with a vertically arranged guide rod, and both side walls of the upper heating cover and the lower heating cover are provided with slides, and the slides provided on the upper heating cover and the lower heating cover are respectively slidably connected with the corresponding guide rods, and an electric control telescopic part is provided on the cross frame, and the telescopic rod of the electric control telescopic part extends horizontally in the direction close to the heat treatment component, and the electric control telescopic part is extended horizontally. The telescopic rod end of the component is provided with a traction head, and the upper and lower ends of the traction head are hinged with a traction rod, and the traction rods connected to the traction head are respectively connected to the sliding seats provided on the side walls of the upper heating cover and the lower heating cover, and the bottom of the lower heating cover is provided with a cooling box, and the bottom of the cooling box is provided with a liquid collecting tank, and a plurality of vertically arranged heat exchange pipes are connected between the top of the collecting tank and the inner cavity of the lower heating cover. A liquid storage tank is provided on the base, and the liquid storage tank is connected to the bottom of the liquid collection tank through a liquid guide pipe. A closing bracket for closing the upper heating cover and the lower heating cover is provided between a pair of the horizontal frames, and a plurality of equally spaced liquid spray heads are provided on the closing bracket. The inner end liquid spray end of the liquid spray head extends to the inner cavity of the heat treatment component, and the outer end of the liquid spray head is connected through a connecting liquid pipe. A liquid pump is provided inside the liquid storage tank, and the discharge interface of the liquid pump is connected to the connecting liquid pipe through a liquid guide outlet pipe.

[0007] Furthermore, a pair of guide rollers for introducing and exporting the steel wire are provided on one side of the pair of cross frames and located at the heat treatment assembly, and the roller surfaces of the heating rollers are provided with guide ring grooves arranged at equal intervals.

[0008] Furthermore, a motor is provided on one side of the horizontal frame, and an output shaft end of the motor is transmission-connected to an shaft end of the heating roller.

[0009] Furthermore, an external electric heating plate is provided at the top of the inner cavity of the upper heating hood, the inner cavity of the lower heating hood is filled with quenching oil, and the quenching oil liquid level exceeds one-third of the height of the bottom of the heating roller. A liquid level detector is provided at the bottom of the lower heating hood, and the detection end of the liquid level detector passes through the inner cavity of the lower heating hood.

[0010] Furthermore, the heating roller is a hollow roller body, an inner electric heating plate is provided in the inner cavity of the heating roller, an electric heating controller is provided on the side of the horizontal frame away from the motor, and the electric heating controller is electrically connected to the inner electric heating plate.

[0011] Furthermore, a plurality of heat-conducting fins are provided on the inner cavity wall of the heating roller, and the plurality of heat-conducting fins are arranged in a ring array along the axis of the heating roller.

[0012] Furthermore, an air inlet is provided on one side of the cooling box, a dust filter is provided at the opening of the air inlet, an exhaust hood is provided on the other side of the cooling box away from the air inlet, and the outer port of the exhaust hood is connected to the air extraction interface of the air pump.

[0013] Furthermore, the upper heating hood is provided with a drying air hood on the top outside the material guide roller, the exhaust interface of the air pump is connected to a heating pipe, and the heating pipe is connected to one side of the drying air hood, and the lower heating hood is integrally formed with a liquid receiving part corresponding to the bottom of the drying air hood.

[0014] Beneficial effects of the present invention:

[0015] 1. The present invention uses a heating roller to transport the steel wire. After the external electric heating plate at the top of the inner cavity of the upper heating cover is powered on, the steel wire transported into the top of the inner cavity of the heat treatment component is heated. The electric heating controller controls the internal electric heating plate to perform heating, thereby increasing the temperature of the heating roller body and providing auxiliary heating for the transported steel wire, thereby improving the heating efficiency of the steel wire. When the steel wire is transported to the bottom of the heating roller, it is immersed in the quenching liquid filled in the inner cavity of the lower heating cover for quenching treatment, thereby greatly improving the practicality of the heat treatment.

[0016] 2. The present invention controls the telescopic rod of the electric telescopic member to extend and retract, and the traction rod connected to the traction head pulls the slide seats provided on the side walls of the upper heating cover and the lower heating cover, thereby controlling the lifting and lowering of the upper heating cover and the opening and closing of the heat treatment component structure, thereby facilitating the arrangement of the steel wire;

[0017] 3. The present invention guides the quenching liquid in the liquid storage tank through the liquid outlet pipe to the liquid spray head under the pumping operation of the liquid pump, and sprays the quenching liquid from the liquid spray head to the heated steel wire on the heating roller. At the same time, the quenching liquid is stored in the inner cavity of the lower heating cover to achieve quenching and cooling of the steel wire. The high-temperature quenching liquid in the inner cavity of the lower heating cover is introduced into the liquid collection tank through the heat exchange pipe. During this period, the air pump is pumped, allowing cold air from the external environment to enter through the air inlet to cool the quenching liquid passing through the heat exchange pipe. The cooled quenching liquid is then introduced into the liquid storage tank through the liquid inlet pipe in the liquid collection tank for storage, thereby achieving circulation and cooling of the quenching liquid and ensuring the quenching effect.

[0018] 4. Under the suction work of the air pump, the high-temperature gas in the cooling box is extracted and guided to the drying gas hood through the heating pipe. The drying gas hood blows liquid and dries the guided steel wire downward. The quenching liquid dropped by the blown-off quenching liquid is collected in the liquid receiving part to realize the recycling of heat energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the heat treatment component of the present invention when it is opened;

[0020] Figure 2This is a schematic diagram of the three-dimensional structure of the heat treatment component of the present invention when it is closed;

[0021] Figure 3 is a side sectional view of the structure of the present invention;

[0022] Figure 4 A side sectional view of the heat treatment assembly structure of the present invention;

[0023] Figure 5 It is a side view of the structure of the present invention.

[0024] In the figure: 1. Heat treatment support assembly; 101. Base; 102. Support; 103. Horizontal frame; 1031. Guide roller; 1032. Guide rod; 1033. Closed support; 2. Heat treatment assembly; 201. Heating roller; 2011. Motor; 2012. Guide ring groove; 2013. Inner electric heating plate; 2014. Electric heating controller; 2015. Heat conducting fin; 202. Upper heating cover; 2021. Outer electric heating plate; 2022. Drying air cover; 20 3. Lower heating hood; 2031. Cooling box; 2032. Liquid collecting box; 2033. Heat exchange tube; 2034. Air inlet; 2035. Exhaust hood; 2036. Air pump; 2037. Heating pipe; 2038. Liquid receiving part; 204. Slide; 3. Liquid storage tank; 301. Liquid inlet pipe; 302. Liquid pump; 303. Liquid outlet pipe; 304. Liquid spray head; 4. Liquid level detector; 5. Steel wire; 6. Electric telescopic part; 601. Traction head; 602. Traction rod. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example 1

[0026] A heat treatment device for high yield strength ratio bead wire, comprising a heat treatment bracket group 1 and a heat treatment component 2, Figure 1 and Figure 3As shown, a base 101 is provided on one side of the heat treatment bracket group 1, and a pair of horizontal cross frames 103 are connected to the top of the base 101, and a heat treatment component 2 is provided between the pair of cross frames 103. The heat treatment component 2 includes a heating roller 201, an upper heating cover 202 and a lower heating cover 203. The heating roller 201 is connected to the pair of cross frames 103 through the two end shaft ends. The top of the heating roller 201 is provided with an upper heating cover 202, and the bottom of the heating roller 201 is provided with a lower heating cover 203. A pair of cross frames 103 and a pair of guide rollers 1031 for introducing and exporting the steel wire 5 are provided on one side of the heat treatment component 2. The roller surface of the heating roller 201 is provided with guide ring grooves 2012 arranged at equal intervals. The guide ring grooves 2012 are used to limit the guided steel wire 5 to prevent the steel wire 5 from deflecting during transportation. A motor 201 is provided on one side of the cross frame 103. 1, and the output shaft end of the motor 2011 is transmission-connected with one shaft end of the heating roller 201, and the motor 2011 drives the motor 2011 to assist in transporting the steel wire 5. An external electric heating plate 2021 is provided at the top of the inner cavity of the upper heating cover 202. After the external electric heating plate 2021 is powered on, it can heat the steel wire 5 transported into the top of the inner cavity of the heat treatment component 2. The inner cavity of the lower heating cover 203 is filled with quenching oil, and the quenching oil level exceeds one-third of the height of the bottom of the heating roller 201. When the steel wire 5 is transported to the bottom of the heating roller 201, it is immersed in the quenching liquid for quenching treatment. A liquid level detector 4 is provided at the bottom of the lower heating cover 203. The detection end of the liquid level detector 4 penetrates into the inner cavity of the lower heating cover 203. The liquid level detector 4 monitors the liquid level of the quenching liquid in the inner cavity of the lower heating cover 203 and replenishes the quenching liquid in time.

[0027] It is worth mentioning that, combined with Figure 3 and Figure 4 As shown, the heating roller 201 is a hollow roller body, and an internal electric heating plate 2013 is provided in the inner cavity of the heating roller 201. An electric heating controller 2014 is provided on the side of the horizontal frame 103 away from the motor 2011. The electric heating controller 2014 is electrically connected to the internal electric heating plate 2013. The electric heating controller 2014 controls the internal electric heating plate 2013 to perform heating work, so that the roller body temperature of the heating roller 201 is increased to assist in heating the transported steel wire 5, thereby improving the heating efficiency of the steel wire 5. A plurality of heat-conducting fins 2015 are provided on the inner cavity wall of the heating roller 201, and the plurality of heat-conducting fins 2015 are arranged in a ring array along the axis of the heating roller 201, thereby improving the heat conduction efficiency of the internal electric heating plate 2013 to the heating roller 201.

[0028] The technical solutions in the above-mentioned embodiments of the present application have at least the following technical effects or advantages: the present invention uses the heating roller 201 to transport the steel wire 5, and after the external electric heating plate 2021 at the top of the inner cavity of the upper heating cover 202 is powered on, the steel wire 5 transported into the top of the inner cavity of the heat treatment component 2 is heated, and the electric heating controller 2014 controls the internal electric heating plate 2013 to perform heating work, so that the roller body temperature of the heating roller 201 increases and the transported steel wire 5 is auxiliary heated, thereby improving the heating efficiency of the steel wire 5. When the steel wire 5 is transported to the bottom of the heating roller 201, it is immersed in the quenching liquid filled in the inner cavity of the lower heating cover 203 for quenching treatment, and the practicality of the heat treatment is greatly improved. Example 2

[0029] Combine Figure 1 、 Figure 2 and Figure 5 As shown, a pair of horizontal frames 103 are each provided with a vertically arranged guide rod 1032 on the outer side wall, and a slide 204 is provided on both side walls of the upper heating cover 202 and the lower heating cover 203, and the slides 204 provided on the upper heating cover 202 and the lower heating cover 203 are respectively slidably connected with the corresponding guide rods 1032, so that the lifting and lowering of the upper heating cover 202 and the lower heating cover 203 can be guided by the guide rods 1032, and an electric-controlled telescopic member 6 is provided on the horizontal frame 103, and the telescopic rod of the electric-controlled telescopic member 6 extends horizontally in the direction close to the heat treatment component 2, and a traction head 601 is provided at the end of the telescopic rod of the electric-controlled telescopic member 6, and the upper and lower ends of the traction head 601 are each hinged with a traction rod 602, and the traction rods 602 connected to the traction head 601 are respectively connected to the slides 204 provided on the side walls of the upper heating cover 202 and the lower heating cover 203.

[0030] The technical solution in the above-mentioned embodiment of the present application has at least the following technical effects or advantages: the present invention controls the telescopic rod of the electrically controlled telescopic part 6 to extend and retract, and pulls the slide 204 provided on the side walls of the upper heating cover 202 and the lower heating cover 203 through the traction rod 602 connected to the traction head 601, thereby controlling the lifting and lowering of the upper heating cover 202 and the lower heating cover 203, controlling the opening and closing of the structure of the heat treatment component 2, and facilitating the arrangement of the steel wire 5. Example 3

[0031] Combine Figure 2 and Figure 3As shown, a cooling box 2031 is provided at the bottom of the lower heating hood 203, a liquid collecting box 2032 is provided at the bottom of the cooling box 2031, and a plurality of vertically arranged heat exchange tubes 2033 are connected between the top of the liquid collecting box 2032 and the inner cavity of the lower heating hood 203, an air inlet 2034 is provided on one side of the cooling box 2031, a dust filter is provided at the opening of the air inlet 2034, an exhaust hood 2035 is provided on the other side of the cooling box 2031 away from the air inlet 2034, the outer port of the exhaust hood 2035 is connected to the exhaust interface of the air pump 2036, the quenching liquid in the inner cavity of the lower heating hood 203 is introduced into the liquid collecting box 2032 through the heat exchange tube 2033, during which time, under the exhaust work of the air pump 2036, the cold air from the external environment enters along the air inlet 2034 to cool the quenching liquid passing through the heat exchange tube 2033.

[0032] A liquid storage tank 3 is provided on the base 101, and the liquid storage tank 3 is connected to the bottom of the liquid collecting tank 2032 through a liquid inlet pipe 301, which is used to introduce the cooled quenching liquid into the liquid storage tank 3 for storage. A closing bracket 1033 for closing the upper heating cover 202 and the lower heating cover 203 is provided between a pair of horizontal frames 103. A plurality of liquid spray heads 304 arranged at equal intervals are provided on the closing bracket 1033. The inner end of the liquid spray head 304 extends into the inner cavity of the heat treatment component 2. The liquid spray head The outer end of 304 is connected through a connecting liquid pipe. A liquid pump 302 is provided inside the liquid storage tank 3, and the discharge interface of the liquid pump 302 is connected to the connecting liquid pipe through a liquid outlet pipe 303. Under the pumping operation of the liquid pump 302, the quenching liquid cooled inside the liquid storage tank 3 is guided to the liquid spray head 304 through the liquid outlet pipe 303, and is sprayed by the liquid spray head 304 to the heated steel wire 5 on the heating roller 201. At the same time, the quenching liquid is stored in the inner cavity of the lower heating cover 203 to realize the circulation and cooling of the quenching liquid.

[0033] The technical solution in the above-mentioned embodiment of the present application has at least the following technical effects or advantages: under the pumping operation of the liquid pump 302, the quenching liquid inside the liquid storage tank 3 is guided to the liquid spray head 304 through the liquid outlet pipe 303, and is sprayed by the liquid spray head 304 onto the heated steel wire 5 on the heating roller 201. At the same time, the quenching liquid is stored in the inner cavity of the lower heating cover 203 to achieve quenching and cooling of the steel wire 5; the high-temperature quenching liquid in the inner cavity of the lower heating cover 203 is introduced into the liquid collection tank 2032 through the heat exchange pipe 2033. During this period, under the pumping operation of the air pump 2036, cold air from the external environment enters through the air inlet 2034 to cool the quenching liquid passing through the heat exchange pipe 2033. The cooled quenching liquid is introduced into the liquid storage tank 3 through the liquid inlet pipe 301 in the liquid collection tank 2032 for storage, thereby achieving circulating cooling of the quenching liquid and ensuring the quenching effect. Example 4

[0034] Combine Figure 2 and Figure 3As shown, the upper heating hood 202 is provided with a drying gas hood 2022 on the top outside the guide roller 1031, the exhaust interface of the air pump 2036 is connected to the heating pipe 2037, and the heating pipe 2037 is connected to one side of the drying gas hood 2022, the lower heating hood 203 is integrally formed with a liquid receiving portion 2038 corresponding to the bottom of the drying gas hood 2022, under the suction work of the air pump 2036, the high-temperature gas in the cooling box 2031 is extracted and guided to the drying gas hood 2022 through the heating pipe 2037, and the drying gas hood 2022 blows and dries the guided steel wire 5 downward, and the blown quenching liquid drops into the liquid receiving portion 2038 for collection.

[0035] The technical solution in the above-mentioned embodiment of the present application has at least the following technical effects or advantages: under the suction work of the air pump 2036, the high-temperature gas in the cooling box 2031 is extracted and guided to the drying gas hood 2022 through the heating pipe 2037. The drying gas hood 2022 blows liquid and dries the guided steel wire 5 downward, and the quenching liquid dropped is collected in the liquid receiving part 2038, thereby realizing the recycling of heat energy.

[0036] Of course, the present invention may have many other implementations. Based on this implementation, other implementations obtained by ordinary technicians in this field without any creative work are all within the scope of protection of the present invention.

Claims

1. A heat treatment device for high yield ratio bead wire, comprising a heat treatment bracket group (1) and a heat treatment component (2), characterized in that: A base (101) is provided on one side of the heat treatment support group (1), a pair of horizontally placed cross frames (103) are connected to the top of the base (101), and a heat treatment component (2) is provided between the pair of cross frames (103), the heat treatment component (2) comprises a heating roller (201), an upper heating cover (202) and a lower heating cover (203), the heating roller (201) is connected to the pair of cross frames (103) through the ends of the shafts at both ends, the upper heating cover (202) is provided on the top of the heating roller (201), the lower heating cover (203) is provided on the bottom of the heating roller (201), and the outer sides of the pair of cross frames (103) are provided with a plurality of heat treatment components (201). A vertically arranged guide rod (1032) is provided on each wall, and a slide seat (204) is provided on both side walls of the upper heating cover (202) and the lower heating cover (203), and the slide seats (204) provided on the upper heating cover (202) and the lower heating cover (203) are respectively slidably connected with the corresponding guide rod (1032), and an electric telescopic member (6) is provided on the cross frame (103), and the telescopic rod of the electric telescopic member (6) extends horizontally in a direction close to the heat treatment component (2), and a traction head (601) is provided at the end of the telescopic rod of the electric telescopic member (6), and the upper and lower ends of the traction head (601) are hinged. A traction rod (602) is connected, and the traction rod (602) connected to the traction head (601) is respectively connected to the slide seats (204) provided on the side walls of the upper heating cover (202) and the lower heating cover (203). A cooling box (2031) is provided at the bottom of the lower heating cover (203), and a liquid collecting box (2032) is provided at the bottom of the cooling box (2031). A plurality of vertically arranged heat exchange pipes (2033) are connected between the top of the liquid collecting box (2032) and the inner cavity of the lower heating cover (203). A liquid storage box (3) is provided on the base (101), and the liquid storage box (3) is connected to the liquid inlet pipe (3 01) is connected to the bottom of the liquid collecting box (2032), and a closing bracket (1033) for closing the upper heating cover (202) and the lower heating cover (203) is provided between a pair of the horizontal frames (103), and a plurality of liquid spray heads (304) arranged at equal intervals are provided through the closing bracket (1033), the inner end of the liquid spray head (304) extends into the inner cavity of the heat treatment component (2), and the outer end of the liquid spray head (304) is connected through a connecting liquid pipe, and a liquid pump (302) is provided inside the liquid storage box (3), and the discharge interface of the liquid pump (302) is connected to the connecting liquid pipe through a liquid outlet pipe (303); A pair of the cross frames (103) are provided on one side of the heat treatment assembly (2) with a pair of guide rollers (1031) for introducing and exporting the steel wire (5), and the roller surface of the heating roller (201) is provided with guide ring grooves (2012) arranged at equal intervals; An external electric heating plate (2021) is provided at the top of the inner cavity of the upper heating hood (202), and the inner cavity of the lower heating hood (203) is filled with quenching oil, and the quenching oil liquid level exceeds one-third of the height of the bottom of the heating roller (201). A liquid level detector (4) is provided at the bottom of the lower heating hood (203), and a detection end of the liquid level detector (4) extends through the inner cavity of the lower heating hood (203).

2. The heat treatment device for high yield ratio bead wire according to claim 1, characterized in that: A motor (2011) is provided on one side of the horizontal frame (103), and an output shaft end of the motor (2011) is transmission-connected to an shaft end of the heating roller (201).

3. The heat treatment device for high yield ratio bead wire according to claim 1, characterized in that: The heating roller (201) is a hollow roller body, an inner electric heating plate (2013) is provided in the inner cavity of the heating roller (201), an electric heating controller (2014) is provided on a side of the horizontal frame (103) away from the motor (2011), and the electric heating controller (2014) is electrically connected to the inner electric heating plate (2013).

4. The heat treatment device for high yield ratio bead wire according to claim 3, characterized in that: A plurality of heat-conducting fins (2015) are provided on the inner cavity wall of the heating roller (201), and the plurality of heat-conducting fins (2015) are arranged in a ring array along the axis of the heating roller (201).

5. The heat treatment device for high yield ratio bead wire according to claim 1, characterized in that: An air inlet (2034) is provided on one side of the cooling box (2031), a dust filter is provided at the opening of the air inlet (2034), an exhaust hood (2035) is provided on the other side of the cooling box (2031) away from the air inlet (2034), and an outer port of the exhaust hood (2035) is connected to the air extraction interface of the air pump (2036).

6. The heat treatment device for high yield ratio bead wire according to claim 1, characterized in that: The upper heating hood (202) is provided with a drying air hood (2022) on the top outside the material guide roller (1031); the exhaust interface of the air pump (2036) is connected to a heating pipe (2037), and the heating pipe (2037) is in lateral communication with a side of the drying air hood (2022); the lower heating hood (203) is provided with a liquid receiving portion (2038) integrally formed at the bottom of the corresponding drying air hood (2022).

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