Annealing equipment with gas uniform distribution function

Abstract

The utility model discloses annealing equipment with a function of uniformly distributing gas, which comprises a heat preservation box and a gas injection mechanism, a heating device is arranged in the heat preservation box, the gas injection mechanism comprises a gas pipe and a through pipe, the gas pipe penetrates through the heat preservation box, the heating device surrounds the outer side of the gas pipe, the gas pipe is communicated with a gas nozzle, the through pipe penetrates through the gas pipe, and the gas nozzle is communicated with the gas pipe. A plurality of rows of ventilation areas are formed in the outer side of the through pipe in the axial direction, and the interior of the through pipe communicates with the interior of the air pipe through the ventilation areas. According to the annealing equipment with the gas uniform distribution function, protective gas is introduced when a metal wire continuously passes through the through pipe, so that the surface oxidation reaction of the wire during annealing is effectively inhibited.

Description

Technical Field

[0001] This utility model relates to the field of metal wire heat treatment, and in particular to an annealing device with a function of uniformly distributing gas. Background Technology

[0002] In the field of metal wire processing, annealing is a key process for improving material ductility and eliminating internal stress. In existing technologies, metal wires are typically placed in conventional annealing furnaces, where performance is optimized through recrystallization at high temperatures.

[0003] However, because the metal wire is exposed to oxygen-containing air during the production process, the surface of the wire reacts violently with oxygen during annealing, forming an oxide layer (such as metal oxides). This oxide layer significantly reduces the conductivity and strength of the metal wire, and can easily cause insufficient interfacial bonding or local brittleness in subsequent plating, welding and other processing. Utility Model Content

[0004] The purpose of this invention is to provide an annealing device with a uniform gas distribution function, in which a protective gas is introduced when the metal wire continuously passes through the tube, effectively suppressing the oxidation reaction on the surface of the wire during annealing.

[0005] The technical solution adopted by the annealing equipment with uniform gas distribution function disclosed in this utility model is:

[0006] The device includes an insulated box and an air injection mechanism. The insulated box is equipped with a heating device. The air injection mechanism includes an air pipe and a connecting pipe. The air pipe passes through the insulated box. The heating device surrounds the outside of the air pipe. An air nozzle is connected to the air pipe. The connecting pipe passes through the air pipe. Multiple rows of ventilation zones are opened along the axial direction on the outside of the connecting pipe. The inside of the connecting pipe is connected to the inside of the air pipe through the ventilation zones.

[0007] As a preferred embodiment, the ventilated area is provided with multiple vent holes, which surround the outside of the through pipe and penetrate into the inside of the through pipe.

[0008] As a preferred embodiment, both ends of the trachea are covered with sealing rings, and the inner ring of the sealing ring is fitted onto the outside of the trachea.

[0009] As a preferred embodiment, there are two air nozzles, which are respectively located near the two ends of the air tube.

[0010] As a preferred embodiment, the insulated box has windows at both ends, the air pipe passes through the windows, and two limiting plates are installed on the windows. The limiting plates have limiting grooves, and the outer side of the air pipe is inserted into the limiting grooves.

[0011] As a preferred embodiment, the insulated box has through holes at both ends, and the through holes are covered with heat insulation boxes.

[0012] As a preferred embodiment, the outside of the insulated box is equipped with a heat insulation plate.

[0013] The beneficial effects of the annealing equipment with uniform gas distribution function disclosed in this utility model are:

[0014] This device is placed between an external upstream processing device and an external downstream processing device. The external upstream processing device guides the metal wire into the conduit, and the metal wire passes through the conduit and is then guided into the external downstream processing device.

[0015] Protective gas is injected into the air tube through the air nozzle. Multiple rows of venting zones are opened axially on the surface of the tube to ensure that the protective gas is evenly diffused throughout the entire length of the tube, improving the uniformity of gas filling. As the metal wire continuously travels through the tube, the protective gas forms a continuous gas film that wraps around and covers the outside of the metal wire. Combined with the heating device on the outside of the air tube, the metal wire is heated and annealed, effectively inhibiting the oxidation reaction on the wire surface and eliminating the formation of an oxide layer on the outside of the metal wire during the annealing process. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an annealing device with a uniform gas distribution function according to this utility model.

[0017] Figure 2 This is a cross-sectional view of the insulation box of an annealing device with a uniform gas distribution function according to this utility model.

[0018] Figure 3 This is a schematic diagram of the installation of the limiting plate of an annealing device with a uniform gas distribution function according to the present invention.

[0019] Figure 4 This is a schematic diagram of the gas injection mechanism of an annealing device with a uniform gas distribution function according to this utility model.

[0020] Figure 5 This is a partial cross-sectional view of the gas pipe of an annealing device with a gas uniform distribution function according to this utility model.

[0021] Figure 6 This is a cross-sectional view of the gas pipe and the through pipe of an annealing device with a gas uniform distribution function according to this utility model. Detailed Implementation

[0022] The present invention will be further described and illustrated below with reference to specific embodiments and the accompanying drawings:

[0023] Please refer to Figures 1-3 .

[0024] This utility model discloses an annealing device with uniform gas distribution function, including a heat preservation box 1 and a gas injection mechanism 2;

[0025] The heat preservation box 1 is equipped with a heating device 11. In this embodiment, the heating device 11 is preferably a ring cavity structure, and there are four heating devices 11, which are arranged at equal intervals along the axial direction of the box.

[0026] Furthermore, both ends of the insulated box 1 are provided with through windows 12, and the interior of the insulated box 1 is connected to the outside through the windows 12. Two limiting plates 121 are installed on the windows 12, and the limiting plates 121 seal the windows 12. Limiting grooves are provided on the limiting plates 121, and the two limiting grooves are close to each other.

[0027] Furthermore, a base is installed at the bottom of the insulation box 1, and an electrical control box is installed on the base; through holes 131 are opened at both ends of the insulation box 1, the through holes 131 are close to the base, and a heat insulation box 13 is installed on the top of the through holes 131. An opening is opened on the heat insulation box 13, and the power supply cable of the electrical control box passes through the opening of the heat insulation box 13 and passes through the through hole 131 to be electrically connected to the heating device 11. A heat insulation layer is provided on the outside of the power supply cable. The heat insulation box 13 effectively suppresses the heat conduction and convection loss of heat in the insulation box 1 through the area of ​​the through hole 131, so as to achieve stable control of the internal working temperature of the box.

[0028] Furthermore, an insulation plate 14 is installed on the outside of the insulated box 1 to prevent workers from coming into contact with the insulated box 1 during production operations.

[0029] Please refer to Figures 1-6 .

[0030] The gas injection mechanism 2 includes a gas pipe 21 and a through pipe 22. The gas pipe 21 passes through the two windows 12 of the insulation box 1. The outer side of the gas pipe 21 is inserted into the limiting groove. The two ends of the gas pipe 21 are respectively limited by four limiting plates 121, so that the gas pipe 21 is fixedly installed on the insulation box 1, which facilitates the installation and operation of the equipment. The gas pipe 21 also passes through the middle of the heating device 11, so that the heating device 11 surrounds the outer side of the gas pipe 21, allowing the heating device 11 to heat the metal wire in the through pipe 22 more evenly.

[0031] Furthermore, the air pipe 21 is connected to an air nozzle 211. In this embodiment, two air nozzles 211 are preferred. The two air nozzles 211 are respectively close to the two ends of the air pipe 21 and are located on the outside of the heat preservation box 1. The air pipe 21 adopts a symmetrical air intake structure at both ends. Protective gas is injected synchronously through the air nozzles 211 at both ends to form a convective air curtain diffusion effect, so as to achieve uniform dispersion and distribution of protective gas inside the air pipe 21.

[0032] Furthermore, both ends of the trachea 21 are covered with sealing rings 212.

[0033] The through-tube 22 passes through the trachea 21. In this embodiment, the through-tube 22 is preferably coaxial with the trachea 21, and the diameter of the through-tube 22 is smaller than the diameter of the trachea 21, so that there is a gap between the outer side of the through-tube 22 and the inner wall of the trachea 21, allowing the protective gas to flow into the middle of the through-tube 22 within the gap. The through-tube 22 passes through two sealing rings 212, with the inner ring of the sealing ring 212 fitted on the outer side of the through-tube 22. The two sealing rings 212 seal the trachea 21 to prevent leakage of the protective gas. Multiple rows of ventilating areas are provided axially on the outer side of the through-tube 22, and the multiple rows of ventilating areas are arranged at intervals. The ventilating areas are located inside the trachea 21.

[0034] Furthermore, multiple ventilation holes 221 are provided in the ventilation area. The ventilation holes 221 penetrate into the interior of the through pipe 22. The interior of the through pipe 22 is connected to the interior of the air pipe 21 through the ventilation holes 221 in the ventilation area. In this embodiment, it is preferred that there are four ventilation holes 221 in the ventilation area, and the four ventilation holes 221 surround the outside of the through pipe 22.

[0035] The design of four vent holes 221 surrounding the through pipe 22 allows the protective gas to enter the through pipe 22 through the four vent holes 221 and form an annular laminar flow field, achieving isobaric dispersion coverage from the outside of the metal wire to the entire area, thus improving the uniformity of gas filling. By opening multiple rows of venting zones side by side along the axial direction on the surface of the through pipe 22, the protective gas in the gas pipe 21 is evenly diffused to the entire interior of the through pipe 22 through the venting zones, further improving the uniformity of gas filling.

[0036] The upstream external processing equipment guides the pre-processed metal wire through the conduit 22, and the metal wire passes through the conduit 22 to the downstream external processing equipment. As the metal wire moves within the conduit 22, the protective gas inside the conduit 22 forms a continuous gas film that wraps around and covers the outside of the metal wire. When the heating device 11 heats the metal wire for annealing, the protective gas can effectively inhibit the oxidation reaction on the surface of the wire, thereby eliminating the formation of an oxide layer on the outside of the metal wire during the annealing process.

[0037] This utility model provides an annealing device with a uniform gas distribution function. The device is placed between an external upstream processing device and an external downstream processing device. The external upstream processing device guides the metal wire into the pipe, and the metal wire passes through the pipe and is then guided into the external downstream processing device.

[0038] Protective gas is injected into the air tube through the air nozzle. Multiple rows of venting zones are opened axially on the surface of the tube to ensure that the protective gas is evenly diffused throughout the entire length of the tube, improving the uniformity of gas filling. As the metal wire continuously travels through the tube, the protective gas forms a continuous gas film that wraps around and covers the outside of the metal wire. Combined with the heating device on the outside of the air tube, the metal wire is heated and annealed, effectively inhibiting the oxidation reaction on the wire surface and eliminating the formation of an oxide layer on the outside of the metal wire during the annealing process.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. An annealing apparatus with a function of uniformly distributing gas, characterized in that, The application relates to a heat preservation box. The heat preservation box is internally provided with a heating device. The injection mechanism comprises a gas pipe and a through pipe, the gas pipe penetrates through the heat preservation box, the heating device surrounds the outer side of the gas pipe, the gas pipe is communicated with a gas nozzle, the through pipe penetrates through the gas pipe, and the outer side of the through pipe is axially provided with a plurality of air-permeable areas.

2. The annealing apparatus having a function of uniformly distributing gas according to claim 1, wherein A plurality of air-permeable holes are arranged in the air-permeable areas, the air-permeable holes surround the outer side of the through pipe, and the air-permeable holes penetrate into the inner part of the through pipe.

3. The annealing apparatus having a function of uniformly distributing gas according to claim 2, wherein The two ends of the gas pipe are provided with sealing rings, and the inner ring of the sealing ring is sleeved on the outer side of the through pipe.

4. The annealing apparatus having a function of uniformly distributing gas according to claim 3, wherein The gas nozzle is provided with two gas nozzles, and the two gas nozzles are arranged near the two ends of the gas pipe.

5. The annealing apparatus having a function of uniformly distributing gas according to any one of claims 1 or 4, wherein The two ends of the heat preservation box are provided with windows, the gas pipe penetrates through the windows, two limiting plates are arranged on the windows, limiting grooves are arranged on the limiting plates, and the outer side of the gas pipe is clamped into the limiting grooves.

6. The annealing apparatus having a function of uniformly distributing gas according to claim 5, wherein The two ends of the heat preservation box are provided with through holes, and the through holes are provided with heat insulation boxes.

7. The annealing apparatus having a function of uniformly distributing gas according to claim 6, wherein The outer side of the heat preservation box is provided with a heat insulation plate.

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