A side-blown bearing wire annealing furnace

By setting up a gas storage section and a side-blowing section in the side-blown bearing steel wire annealing furnace, precise control of gas input and temperature uniformity are achieved, solving the problem of uneven annealing caused by inaccurate gas quantity and improving the performance of the steel wire.

CN224280385UActive Publication Date: 2026-05-26GUANTAO COUNTY LUDONG BEARING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANTAO COUNTY LUDONG BEARING CO LTD
Filing Date
2025-06-13
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

In existing side-blown bearing steel wire annealing furnaces, the inaccurate input of gas leads to uneven temperature distribution, affecting the annealing effect, and the unstable concentration of protective gas affects the performance of the steel wire.

Method used

A side-blown bearing steel wire annealing furnace was designed, comprising a gas storage section and a side-blowing section. The gas storage section has multiple gas storage spaces to store different gases. The gas input is precisely controlled by a gas pump and a gas flow meter to ensure stable gas flow. The side-blowing section provides heat through gas combustion.

Benefits of technology

Precise control of gas input was achieved, ensuring temperature uniformity and atmosphere stability, improving the annealing effect, and enhancing the hardness, plasticity, and toughness of the steel wire.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

This utility model relates to the field of bearing steel wire production technology and discloses a side-blown bearing steel wire annealing furnace, including a furnace body with a furnace door movably installed in the middle of the furnace body; an annealing assembly disposed inside the furnace body; wherein the annealing assembly includes a heating part and a movable part, both of which are disposed inside the furnace body; and a side-blowing assembly disposed on the right side of the furnace body. This utility model, by setting up a side-blowing part, starts the air pump, opens the valve, and the gas in the gas storage tank passes through a connecting hopper, a bend, a gas flow meter, and finally enters the furnace body through a connecting pipe. The gas burns inside the furnace to generate heat, heating the steel wire. The gas flow meter measures the gas flow rate; when a predetermined flow rate value is reached, the corresponding air pump stops working, achieving precise control of the input gas quantity.
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Description

Technical Field

[0001] This utility model relates to the field of bearing steel wire production technology, specifically a side-blown bearing steel wire annealing furnace. Background Technology

[0002] An annealing furnace is a heat treatment device primarily used in semiconductor device manufacturing and power systems. In semiconductor device manufacturing, annealing furnaces heat semiconductor wafers to activate dopants, alter thin film states, and repair damage. In power systems, annealing furnaces anneal metal wires to reduce or eliminate work hardening. There are several types of annealing furnaces, including rapid annealing furnaces and box-type annealing furnaces. Rapid annealing furnaces utilize halogen infrared lamps as a heat source, featuring rapid heating rates and extremely high temperature control accuracy, making them suitable for rapid heat treatment and high-temperature annealing. Box-type annealing furnaces are mainly used for the conventional heat treatment of steel workpieces.

[0003] Annealing furnaces are widely used in semiconductor device manufacturing, power systems, and industrial heat treatment. In semiconductor manufacturing, annealing furnaces are used to improve the electrical properties of wafers; in power systems, they are used for processing metal wires; and in industrial applications, box-type annealing furnaces are used for heat treatments such as quenching, normalizing, and annealing of steel workpieces.

[0004] Currently, in practical applications of side-blown bearing steel wire annealing furnaces, inaccurate input gas volume may lead to uneven temperature distribution within the furnace, with some areas experiencing excessively high or low temperatures. This temperature instability can affect the annealing effect of the steel wire, resulting in substandard properties such as hardness, plasticity, and toughness. Specific protective gases (such as nitrogen or hydrogen) are typically required during annealing to prevent steel wire oxidation. Inaccurate input gas volume may lead to insufficient or excessive protective gas concentration, thereby affecting the stability and effectiveness of the annealing atmosphere. Utility Model Content

[0005] The purpose of this invention is to provide a side-blown bearing steel wire annealing furnace to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a side-blown bearing steel wire annealing furnace, comprising a furnace body, wherein a furnace door is movably installed in the middle of the furnace body;

[0007] An annealing assembly, wherein the annealing assembly is disposed inside the furnace body;

[0008] The annealing assembly includes a heating part and a moving part, both of which are located inside the furnace body.

[0009] A side-blowing assembly, wherein the side-blowing assembly is disposed on the right side of the furnace body;

[0010] The side-blowing assembly includes a gas storage section and a side-blowing section, both of which are located on the right side of the furnace body.

[0011] Preferably, the heating element includes a chassis, the furnace body has linearly and equidistantly spaced heat dissipation holes, a temperature controller is fixedly installed inside the furnace body, a halogen infrared heating lamp is fixedly installed on the top of the inner wall of the furnace body, and a transparent plate is fixedly installed in the middle of the furnace door.

[0012] Preferably, the chassis is movably mounted on the bottom of the inner wall of the furnace body, the heat dissipation holes are located inside the side wall of the furnace body, the temperature controller is electrically connected to the halogen infrared heating lamp, the halogen infrared heating lamp array is located on the top of the inner wall of the furnace body, and a motor is fixedly mounted on the bottom of the chassis, the motor being fixedly mounted inside the bottom wall of the furnace body.

[0013] Preferably, the movable part includes a movable plate, a short rod is fixedly installed on one side of the movable plate, a sliding groove and an inner cavity are provided on the left side of the furnace body, the movable plate is located on the left side of the furnace body, the movable plate is movably installed inside the inner cavity, the short rod is movably installed inside the sliding groove, the sliding groove and the inner cavity are connected, and the movable plate is located on the left side of the heat dissipation hole.

[0014] Preferably, the gas storage section includes a gas storage box, with a box cover linearly and equidistantly arranged on the top of the gas storage box, an air inlet hopper fixedly installed on the top of the box cover, a plunger installed on the top of the air inlet hopper, and a connecting hopper linearly and equidistantly fixedly installed on the left side of the gas storage box. The interior of the gas storage box is cleverly divided into multiple independent gas storage spaces, allowing users to easily remove the plunger and inject different types of gases, such as oxygen and natural gas, into each space through the air inlet hopper. In this way, the gas storage box can store multiple gases simultaneously. When needed, simply start the gas pump to easily extract the required gas from the gas storage box and input it into the furnace body for chemical reaction, thereby greatly improving the convenience of gas input in the annealing furnace.

[0015] Preferably, the gas storage box is located on the right side of the furnace body, the air inlet hopper is connected to the inside of the gas storage box, the connecting hopper is connected to the inside of the gas storage box, and the bottom end of the plunger penetrates through the air inlet hopper and extends into the inside of the air inlet hopper.

[0016] Preferably, the side-blowing part includes an air pump, with a bend fixedly installed at the output end of the air pump. A valve is fixedly installed at one end of the bend near the bottom, and a gas flow meter is fixedly installed at one end of the bend. A connecting pipe is fixedly installed on the left side of the gas flow meter, and a mounting base is fixedly installed on the right side of the furnace body. After the air pump is started, the valve is opened, allowing the gas in the gas storage tank to flow sequentially through the connecting hopper and the bend. The flow rate is then monitored by the gas flow meter. Finally, the gas is sent into the furnace body through the connecting pipe, where it burns and releases heat to heat the steel wire. The gas flow meter accurately measures the gas flow rate during this process. Once the preset flow rate value is reached, the corresponding air pump will automatically stop working, thereby achieving precise control of the input gas volume.

[0017] Preferably, the air pump is linearly and equidistantly arranged on the right side of the furnace body, the air pump is fixedly installed inside the fixed base, the input end of the air pump is fixedly installed to the connecting bucket, the bent pipe is arranged on the top of the air pump, the left end of the connecting pipe is fixedly installed to the furnace body, and the connecting pipe communicates with the inside of the furnace body.

[0018] This utility model provides a side-blown bearing steel wire annealing furnace. It has the following beneficial effects:

[0019] (1) By setting up a side-blowing part, starting the air pump, opening the valve, the gas in the gas storage tank passes through the connecting bucket and the bend pipe, passes through the gas flow meter, and finally enters the furnace body through the connecting pipe. The gas burns in the furnace to generate heat and heats the steel wire. The gas flow meter can measure the flow rate of the gas. When the predetermined flow rate value is reached, the corresponding air pump will stop working, thus achieving the effect of accurately controlling the input gas quantity.

[0020] (2) By setting up a gas storage section, the gas storage box has multiple gas storage spaces inside. The plunger can be removed and different gases, such as oxygen and natural gas, can be injected into the gas storage box through the air inlet. The gas storage box contains different types of gases. The gas can be input into the furnace body for reaction by using an air pump, thus achieving the effect of convenient gas supply to the annealing furnace. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a left view of the annealing furnace of this utility model;

[0023] Figure 3 This is a view of the internal structure of the annealing furnace of this utility model;

[0024] Figure 4 This utility model Figure 3 A magnified view of part A.

[0025] In the diagram: 1 Furnace body, 2 Furnace door, 3 Annealing assembly, 31 Heating part, 311 Chassis, 312 Heat dissipation hole, 313 Temperature controller, 314 Halogen infrared heating lamp, 315 Transparent plate, 32 Movable part, 321 Movable plate, 322 Short rod, 323 Slide groove, 324 Inner cavity, 4 Side blowing assembly, 41 Gas storage part, 411 Gas storage box, 412 Box cover, 413 Air inlet hopper, 414 Plunger, 415 Connecting hopper, 42 Side blowing part, 421 Air pump, 422 Bend, 423 Valve, 424 Gas flow meter, 425 Connecting pipe, 426 Fixing base. Detailed Implementation

[0026] 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.

[0027] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention. Example 1:

[0028] A preferred embodiment of the side-blown bearing wire annealing furnace provided by this utility model is as follows: Figure 1-4 As shown: A side-blown bearing steel wire annealing furnace includes a furnace body 1, and a furnace door 2 is movably installed in the middle of the furnace body 1;

[0029] Annealing assembly 3 is disposed inside furnace body 1;

[0030] The annealing assembly 3 includes a heating part 31 and a movable part 32, both of which are located inside the furnace body 1.

[0031] The heating element 31 includes a chassis 311, with heat dissipation holes 312 linearly and equidistantly arranged inside the furnace body 1, a temperature controller 313 fixedly installed inside the furnace body 1, a halogen infrared heating lamp 314 fixedly installed on the top of the inner wall of the furnace body 1, a transparent plate 315 fixedly installed in the middle of the furnace door 2, the chassis 311 movably installed at the bottom of the inner wall of the furnace body 1, the heat dissipation holes 312 located inside the side wall of the furnace body 1, the temperature controller 313 electrically connected to the halogen infrared heating lamp 314, the array of halogen infrared heating lamps 314 located at the top of the inner wall of the furnace body 1, and a motor fixedly installed at the bottom of the chassis 311. The motor is fixedly installed inside the bottom wall of the furnace body 1. The halogen infrared heating lamp 314 is turned on to heat the inside of the furnace body 1. After a period of time, the furnace door 1 is opened, the bearing steel wire is placed at the center of the top of the chassis 311, and then the furnace door 2 is closed.

[0032] The movable part 32 includes a movable plate 321. A short rod 322 is fixedly installed on one side of the movable plate 321. A sliding groove 323 and an inner cavity 324 are provided on the left side of the furnace body 1. The movable plate 321 is located on the left side of the furnace body 1 and is movably installed inside the inner cavity 324. The short rod 322 is movably installed inside the sliding groove 323. The sliding groove 323 and the inner cavity 324 are connected. The movable plate 321 is located on the left side of the heat dissipation hole 312. After the bearing steel wire inside the furnace body 1 is annealed, the movable plate 321 is moved by moving the short rod 322, so that the heat dissipation hole 312 is no longer blocked, and heat dissipation treatment is performed inside the furnace body 1. Example 2:

[0033] Based on Embodiment 1, a preferred embodiment of the side-blown bearing wire annealing furnace provided by this utility model is as follows: Figure 1-4 As shown: Side-blowing assembly 4, which is located on the right side of furnace body 1;

[0034] The side-blowing assembly 4 includes a gas storage section 41 and a side-blowing section 42, both of which are located on the right side of the furnace body 1.

[0035] The gas storage section 41 includes a gas storage box 411. A box cover 412 is linearly and equidistantly arranged on the top of the gas storage box 411. An air inlet hopper 413 is fixedly installed on the top of the box cover 412. A plunger 414 is arranged on the top of the air inlet hopper 413. A connecting hopper 415 is linearly and equidistantly fixedly installed on the left side of the gas storage box 411. The gas storage box 411 is located on the right side of the furnace body 1. The air inlet hopper 413 is connected to the inside of the gas storage box 411. The connecting hopper 415 is also connected to the inside of the gas storage box 411. The bottom end of the plunger 414 penetrates the air inlet hopper 413 and extends into the inside of the air inlet hopper 413. The gas storage box 411 has multiple gas storage spaces inside. The plunger 414 can be removed, and different gases, such as oxygen and natural gas, can be injected into the gas storage box 411 through the air inlet hopper 413.

[0036] The side-blowing section 42 includes an air pump 421. A bend 422 is fixedly installed at the output end of the air pump 421. A valve 423 is fixedly installed at one end of the bend 422 near the bottom. A gas flow meter 424 is fixedly installed at one end of the bend 422. A connecting pipe 425 is fixedly installed on the left side of the gas flow meter 424. A mounting base 426 is fixedly installed on the right side of the furnace body 1. The air pump 421 is linearly and equidistantly positioned on the right side of the furnace body 1. The air pump 421 is fixedly installed inside the mounting base 426. The input end of the air pump 421 is fixedly installed to the connecting hopper 415. The bend 422 is installed on top of the air pump 421, and the left end of the connecting pipe 425 is fixedly installed to the furnace body 1. The connecting pipe 425 is connected to the inside of the furnace body 1. When the air pump 421 is started and the valve 423 is opened, the gas in the gas storage tank 411 passes through the connecting hopper 415, the bend 422, the gas flow meter 424, and finally enters the inside of the furnace body 1 through the connecting pipe 425. The gas burns in the furnace to generate heat, which heats the steel wire. The gas flow meter 424 can measure the flow rate of the gas. When the predetermined flow rate value is reached, the corresponding air pump 421 will stop working.

[0037] During use, the halogen infrared heating lamp 314 is turned on to heat the interior of the furnace body 1. After a period of time, the furnace door 1 is opened, and the bearing steel wire is placed at the center of the top of the chassis 311. Then the furnace door 2 is closed. The gas storage tank 411 has multiple gas storage spaces. The plunger 414 can be removed, and different gases, such as oxygen and natural gas, are injected into the gas storage tank 411 through the air inlet hopper 413. The air pump 421 is started, and the valve 423 is opened. The gas in the gas storage tank 411 passes through the connecting hopper 415, the bend pipe 422, and the gas flow meter. 424. Finally, the gas enters the furnace body 1 through the connecting pipe 425. The gas burns in the furnace to generate heat, which heats the steel wire. After heating to the predetermined temperature, it is held for a period of time (i.e., the holding time) to change the crystal structure of the steel wire and achieve the purpose of annealing. During the holding process, the gas continues to operate at a small flow rate to maintain the stability of the temperature and atmosphere inside the furnace. After the bearing steel wire in the furnace body 1 is annealed, the movable plate 321 is moved by moving the short rod 322, and the heat dissipation hole 312 is no longer blocked, so as to dissipate heat inside the furnace body 1.

[0038] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A side-blown bearing wire annealing furnace, characterized in that, It includes a furnace body (1), and a furnace door (2) is movably installed in the middle of the furnace body (1); Annealing assembly (3), wherein the annealing assembly (3) is disposed inside the furnace body (1); The annealing assembly (3) includes a heating part (31) and a movable part (32), both of which are located inside the furnace body (1). Side-blowing assembly (4), the side-blowing assembly (4) is disposed on the right side of the furnace body (1); The side-blowing assembly (4) includes a gas storage section (41) and a side-blowing section (42), both of which are located on the right side of the furnace body (1).

2. A side-fired bearing wire annealing furnace as defined in claim 1, characterized in that: The heating part (31) includes a chassis (311), the furnace body (1) has linearly and equidistantly spaced heat dissipation holes (312), the furnace body (1) has a thermostat (313) fixedly installed inside, the furnace body (1) has a halogen infrared heating lamp (314) fixedly installed on the top of the inner wall of the furnace body (1), and the furnace door (2) has a transparent plate (315) fixedly installed in the middle.

3. A side-fired bearing wire annealing furnace as claimed in claim 2, characterized in that: The chassis (311) is movably installed at the bottom of the inner wall of the furnace body (1). The heat dissipation hole (312) is located inside the side wall of the furnace body (1). The temperature controller (313) is electrically connected to the halogen infrared heating lamp (314). The array of halogen infrared heating lamps (314) is located at the top of the inner wall of the furnace body (1). A motor is fixedly installed at the bottom of the chassis (311). The motor is fixedly installed inside the bottom wall of the furnace body (1).

4. A side-fired bearing wire annealing furnace as defined in claim 1, characterized in that: The movable part (32) includes a movable plate (321), a short rod (322) is fixedly installed on one side of the movable plate (321), a sliding groove (323) and an inner cavity (324) are provided on the left side of the furnace body (1), the movable plate (321) is located on the left side of the furnace body (1), the movable plate (321) is movably installed inside the inner cavity (324), the short rod (322) is movably installed inside the sliding groove (323), the sliding groove (323) is connected to the inner cavity (324), and the movable plate (321) is located on the left side of the heat dissipation hole (312).

5. A side-blown bearing steel wire annealing furnace according to claim 1, characterized in that: The gas storage section (41) includes a gas storage box (411), a box cover (412) is linearly and equidistantly arranged on the top of the gas storage box (411), an air inlet hopper (413) is fixedly installed on the top of the box cover (412), a plunger (414) is arranged on the top of the air inlet hopper (413), and a connecting hopper (415) is linearly and equidistantly fixedly installed on the left side of the gas storage box (411).

6. A side-blown bearing steel wire annealing furnace according to claim 5, characterized in that: The gas storage box (411) is located on the right side of the furnace body (1). The air inlet hopper (413) is connected to the inside of the gas storage box (411). The connecting hopper (415) is connected to the inside of the gas storage box (411). The bottom end of the plunger (414) passes through the air inlet hopper (413) and extends into the inside of the air inlet hopper (413).

7. A side-blown bearing wire annealing furnace according to claim 1, characterized in that: The side-blowing part (42) includes an air pump (421), the output end of the air pump (421) is fixedly installed with a bend (422), a valve (423) is fixedly installed at one end of the bend (422) near the bottom, a gas flow meter (424) is fixedly installed at one end of the bend (422), a connecting pipe (425) is fixedly installed on the left side of the gas flow meter (424), and a fixing seat (426) is fixedly installed on the right side of the furnace body (1).

8. A side-blown bearing wire annealing furnace according to claim 7, characterized in that: The air pump (421) is linearly and equidistantly arranged on the right side of the furnace body (1). The air pump (421) is fixedly installed inside the fixed base (426). The input end of the air pump (421) is fixedly installed with the connecting bucket (415). The bent pipe (422) is arranged on the top of the air pump (421). The left end of the connecting pipe (425) is fixedly installed with the furnace body (1). The connecting pipe (425) is connected to the inside of the furnace body (1).