Annealing furnace for rough copper wire rod

Abstract

The utility model discloses a kind of annealing furnace for rough copper wire wire rod processing, including furnace body, the furnace body is quadrangular box type, the front side of furnace body is equipped with furnace door, the right side of furnace body is equipped with aeration pipeline, the aeration pipeline extends to furnace body inner cavity and is perforated furnace body, the inner wall of furnace body is equipped with heating wire, first baffle and second baffle are equipped in furnace body, stainless steel placement tool is equipped on the first baffle, rough copper wire shaft is equipped on the stainless steel placement tool.The utility model has the beneficial effects that: the utility model uses box furnace body structure plus heating wire, can carry out annealing treatment to rough copper wire after oxidation pretreatment, compared with prior art, the utility model is simple in structure, easy to operate, and can improve the efficiency of annealing treatment.

Description

Technical Field

[0001] This utility model relates to the field of coarse copper wire manufacturing technology, specifically to an annealing furnace for processing coarse copper wire. Background Technology

[0002] Annealing is a crucial step in the processing of crude copper wire, aiming to eliminate internal stress and improve mechanical properties. Currently, most crude copper wire annealing processes utilize box-type annealing furnaces for constant-temperature nitrogen-protected heat treatment. However, existing annealing furnaces are complex in structure and cumbersome to operate, leading to increased production costs and low annealing efficiency. Utility Model Content

[0003] The purpose of this invention is to provide an annealing furnace for processing coarse copper wire, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] An annealing furnace for processing coarse copper wire includes a furnace body, which is a square box type. The furnace body has a furnace door on the front side and an air filling pipe on the right side of the furnace body. The air filling pipe extends through the furnace body into the inner cavity of the furnace body. A heating wire is provided on the inner wall of the furnace body. A first partition and a second partition are provided inside the furnace body. A stainless steel placement fixture is provided on the first partition, and a coarse copper wire spool is placed on the stainless steel placement fixture.

[0006] Preferably, the heating wire is one of nickel-chromium alloy or iron-chromium-aluminum alloy.

[0007] Preferably, the wall thickness of the furnace body is greater than 60 mm.

[0008] Preferably, the furnace body is provided with casters at the four corners of its bottom.

[0009] Preferably, both the first partition and the second partition are made of 310S high-temperature resistant stainless steel.

[0010] Compared with the prior art, the beneficial effects of this utility model are: this utility model adopts a box-type furnace structure and a heating wire, which can anneal the crude copper wire after oxidation pretreatment. Compared with the prior art, this utility model has a simple structure, is easy to operate, and can improve the efficiency of annealing. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] In the diagram: 1. Furnace body; 2. Furnace door; 3. Gas filling pipe; 4. Heating wire; 5. First partition; 6. Second partition; 7. Stainless steel placement fixture; 8. Coarse copper spool; 9. Casters. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] Please see Figure 1 This utility model provides a technical solution: an annealing furnace for processing coarse copper wire, including a furnace body 1, which is a square box type. A furnace door 2 is provided on the front side of the furnace body 1, and the furnace door 2 is equipped with a sealing gasket, forming a sealed space when closed with the furnace body 1. An air filling pipe 3 is provided on the right side of the furnace body 1, extending through the furnace body 1 into the inner cavity of the furnace body. A heating wire 4 is provided on the inner wall of the furnace body 1. A first partition 5 and a second partition 6 are provided inside the furnace body 1. Two stainless steel placement fixtures 7 are provided on the first partition 5, detachably connected to the first and second partitions respectively. A coarse copper wire spool 8 is provided on the stainless steel placement fixture 7 for winding coarse copper wire.

[0015] In this embodiment, the heating wire 4 is made of either nickel-chromium alloy or iron-chromium-aluminum alloy.

[0016] In this embodiment, the wall thickness of the furnace body 1 is greater than 60 mm.

[0017] In this embodiment, casters 9 are provided at the four corners of the bottom of the furnace body 1.

[0018] In this embodiment, both the first partition 5 and the second partition 6 are made of 310S high-temperature resistant stainless steel.

[0019] In this embodiment, the annealing step is as follows:

[0020] Step 1: Place the coarse copper wire into the heating chamber of the oxidation passivation pretreatment device.

[0021] Step 2: Control the temperature inside the heating chamber at 150-200℃, introduce air containing a small amount of oxygen, with the oxygen content controlled at 1-5% (volume fraction), and maintain this temperature and atmosphere conditions for 10-30 minutes to perform a slight controllable oxidation passivation treatment on the coarse copper wire, so that a thin and uniform oxidation passivation film is formed on its surface.

[0022] Step 3: Wind the oxidized and passivated coarse copper wire onto the coarse copper spool 8 and place it horizontally inside the furnace body 1.

[0023] Step 4: Introduce nitrogen into furnace body 1 to achieve a nitrogen purity of 99.9% or higher and maintain a slightly positive pressure (50-100 Pa) inside the furnace.

[0024] Step 5: Heat the furnace body 1 to the annealing temperature, such as 200-500℃, and maintain this temperature for 2-4 hours to perform heat treatment on the coarse copper wire.

[0025] Step 6: After the heat treatment is completed, turn off the heating element and continue to introduce nitrogen into the furnace to cool the coarse copper wire to room temperature under nitrogen protection, and then take it out.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An annealing furnace for processing coarse copper wire, characterized in that, The furnace includes a furnace body, which is a square box type. The furnace body has a furnace door on the front side and an air filling pipe on the right side of the furnace body. The air filling pipe extends through the furnace body and into the inner cavity of the furnace body. The inner wall of the furnace body is provided with heating wires. The furnace body is provided with a first partition and a second partition. The first partition is provided with a stainless steel placement fixture, and the stainless steel placement fixture is provided with a thick copper spool.

2. The annealing furnace for processing coarse copper wire according to claim 1, characterized in that: The heating wire is one of nickel-chromium alloy or iron-chromium-aluminum alloy.

3. The annealing furnace for processing coarse copper wire according to claim 2, characterized in that: The furnace body has a wall thickness greater than 60 mm.

4. An annealing furnace for processing coarse copper wire according to claim 3, characterized in that: The furnace body is equipped with casters at the four corners of its bottom.

5. An annealing furnace for processing coarse copper wire according to claim 4, characterized in that: Both the first and second partitions are made of 310S high-temperature resistant stainless steel.

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