CN113061704B - Continuous heat treatment furnace for aluminum alloy flange - Google Patents
Continuous heat treatment furnace for aluminum alloy flange Download PDFInfo
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- CN113061704B CN113061704B CN202110264579.2A CN202110264579A CN113061704B CN 113061704 B CN113061704 B CN 113061704B CN 202110264579 A CN202110264579 A CN 202110264579A CN 113061704 B CN113061704 B CN 113061704B
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D11/00—Process control or regulation for heat treatments
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0006—Details, accessories not peculiar to any of the following furnaces
- C21D9/0018—Details, accessories not peculiar to any of the following furnaces for charging, discharging or manipulation of charge
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
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Abstract
The invention belongs to the technical field of heat treatment of aluminum alloy flanges, and particularly relates to a continuous heat treatment furnace for aluminum alloy flanges, which comprises a furnace body, a stepping transmission device (3), a heating device (6), an air circulation device, a furnace door and a support frame (9), wherein the furnace body is arranged on the upper surface of the support frame (9); compared with the prior art, the continuous heat treatment furnace (1) for the aluminum alloy flange changes the current situation that a box type solution furnace is mostly adopted for the heat treatment of the aluminum alloy flange, and has higher operation efficiency and higher energy utilization rate; (2) By arranging the first air guide plate and the second air guide plate in the preheating section and the heating section and the soaking section, good hot air circulation passages can be constructed in the preheating section, the heating section and the soaking section, and the furnace temperature uniformity of each section is improved; (3) The rotating speed of the fan can be adjusted by changing the gear ratio of the driving wheel and the driven wheel matched with the fan driving chain in the first air circulating device, so that the hot air circulating effect can be adjusted.
Description
Technical Field
The invention belongs to the technical field of heat treatment of aluminum alloy flanges, and particularly relates to a continuous heat treatment furnace for an aluminum alloy flange.
Background
At present, most of the solution heat treatment of aluminum alloy flanges adopts a box-type solution furnace, and the box-type solution furnace comprises a furnace bottom bracket, a heating furnace body, a thermal circulation fan, a flow guide system, a charging basket, a lifting winch mechanism, an electric (temperature) control system and the like.
The aluminum alloy box type solid solution furnace is a periodic operation type resistance furnace, when an aluminum alloy flange in the furnace is discharged from the furnace, the furnace needs to be reloaded and then heated for heat treatment, and the operation efficiency is low; all flanges in the furnace body are operated in the discharging and charging processes, the whole temperature of the furnace body periodically rises and falls, and the effective utilization rate of energy is low.
Disclosure of Invention
The invention aims at the problems and provides an aluminum alloy flange continuous heat treatment furnace.
In order to achieve the purpose, the invention adopts the technical scheme that: an aluminum alloy flange continuous heat treatment furnace comprises a furnace body, a stepping transmission device, a heating device, an air circulation device, a furnace door and a support frame, wherein the furnace body is arranged on the upper surface of the support frame and is divided into an upper furnace body and a lower furnace body, the upper furnace body and the lower furnace body are both cuboid boxes, refractory material layers are arranged on the inner walls of the upper furnace body and the lower furnace body, a discharging section, a preheating section, a heating section and a soaking section are sequentially arranged on the furnace body from left to right, and the length of the soaking section is smaller than that of the heating section; a step transmission device is horizontally arranged in the lower furnace body, the upper end surface of the step transmission device is flush with the upper end surface of the lower furnace body, a plurality of aluminum alloy flanges are evenly arranged on the upper end surface of the step transmission device at intervals, and the length of the step transmission device is equal to the length of the inside of the lower furnace body; the preheating section, the heating section and the soaking section are respectively provided with a heating device and an air circulating device; the furnace gate includes middle furnace gate and ejection of compact furnace gate, the adjacent section juncture of blowing section, preheating section, heating section and soaking section is equipped with middle furnace gate, the ejection of compact furnace gate is installed to soaking section end.
Preferably, the width and the height of the upper furnace body and the lower furnace body are equal, the upper furnace body is not provided with a lower end cover, and the lower furnace body is not provided with an upper end cover; the length of the lower furnace body is greater than that of the upper furnace body, the upper furnace body is arranged on the upper end surface of the lower furnace body, and one ends of the upper furnace body and one ends of the lower furnace body in the length direction are aligned; the part of the lower furnace body, which exceeds the upper furnace body in the length direction, is a discharging section; the horizontal projection superposition part of the upper furnace body and the lower furnace body is sequentially divided into a preheating section, a heating section and a soaking section.
Preferably, the heating device comprises a plurality of resistance wires and a fastening device, the fastening device is in a cuboid shape, the resistance wires are vertically and uniformly arranged on the lower end face of the fastening device and are electrically connected with an external power supply, and the fastening device is respectively arranged on the left side of the upper surface of the upper furnace body of the preheating section and the heating section and on the rear side of the upper surface of the upper furnace body of the soaking section; and a plurality of resistance wires below the fastening device are suspended in the upper furnace body.
Preferably, the stepping transmission device comprises a material discharging plate and two pairs of chain transmission devices with the same specification, the two pairs of chain transmission devices are installed in parallel at intervals, each chain transmission device comprises a chain, a driving wheel, a driven wheel and a servo motor, the driving wheel is in driving connection with the servo motor, and the chain is matched with the driving wheel and the driven wheel; the material placing plate is arranged between the two pairs of chains and can rotate circularly along with the chains; and a plurality of ventilation holes are formed in the discharging plate in a balanced manner.
Preferably, vertical partition plates are arranged at junctions of adjacent sections of the feeding section, the preheating section, the heating section and the soaking section, the partition plates are divided into an upper partition plate and a lower partition plate, and the upper partition plate and the lower partition plate are fixedly connected with the upper furnace body and the lower furnace body respectively; the middle of the upper clapboard is connected with a middle furnace door in a sliding way, and when the middle furnace door is closed, the lower end surface of the middle furnace door is contacted with the upper end surface of the material placing plate; the lower partition plate is provided with a hole only allowing the chain and the discharging plate to pass through.
Preferably, the air circulation device comprises a first air circulation device and a second air circulation device, and the first air circulation device is respectively arranged on the left sides of the preheating section and the heating section; and the second air circulating device is arranged at the rear side of the soaking section.
Preferably, the first air circulation device comprises a first fan motor, a fan driving chain, a fan, a first air deflector, a bearing seat and a fan main shaft with a boss; the air deflector comprises a transverse plate and a vertical plate, the vertical plate is vertically and fixedly connected with the upper surface of the left end of the transverse plate, the vertical plate and the transverse plate are fixedly connected with the upper parts of the front inner wall and the rear inner wall of the upper furnace body of the preheating section or the heating section, the upper end surface of the vertical plate is not contacted with the top wall of the upper furnace body, and a certain distance exists between the vertical plate and a left middle furnace door of the preheating section or the heating section; the fan is arranged on the left side above the transverse plate, the plurality of resistance wires of the heating device are arranged on the right side, the center of the upper end face of the fan is vertically detachably connected with the main shaft of the fan, and the upper end face of the fan is not higher than the upper end face of the vertical plate of the air deflector; the fan comprises a plurality of rectangular fan blades, the horizontal projections of the fan blades are all straight line segments, the ends, far away from the main shaft of the fan, of the straight line segments are located on the same circle, and the center of the circle is located on the central axis of the main shaft of the fan; the upper part of the main shaft of the fan penetrates through the top wall of the upper furnace body and is matched with an upper bearing seat and a lower bearing seat which are internally provided with bearings, and the upper bearing seat and the lower bearing seat are both arranged above the upper furnace body; the boss of the fan main shaft is positioned above the bearing seat; the part of the fan main shaft between the upper bearing seat and the lower bearing seat is detachably connected with a driven wheel, a fan motor I is installed on the side, away from the heating device, of the fan main shaft, the fan motor is vertically installed above the upper furnace body, the output end of the fan motor faces downwards, the output end of the fan motor is connected with a driving wheel in a driving mode, and a fan driving chain is matched with the driving wheel and the driven wheel.
Preferably, the second air circulating device comprises a second fan motor, an industrial fan and a second air guide plate, the second air guide plate is flat and is horizontally and fixedly connected with the upper portion of the rear side of the inner wall of the upper furnace body of the soaking section, a certain distance exists between the second air guide plate and the rear wall of the upper furnace body, a plurality of resistance wires and the industrial fan of the heating device are arranged above the second air guide plate from front to back, the central line of a fan blade group of the industrial fan is a horizontal line, the industrial fan is in driving connection with the second fan motor at the rear, and the second fan motor is horizontally arranged outside the rear wall of the upper furnace body of the soaking section and is perpendicular to the rear wall of the upper furnace body.
Preferably, the furnace further comprises a discharging guide plate, and the discharging guide plate is arranged below the outer side of the discharging furnace door.
An aluminum alloy flange heat treatment method based on an aluminum alloy flange continuous heat treatment furnace comprises the following steps:
step one, the cleaned aluminum alloy flanges are evenly placed on a material placing plate of a stepping transmission device in a material placing section;
step two, intermediate furnace doors of the preheating section, the heating section and the soaking section are opened at the same time, a chain of a stepping transmission device is stepped, and the intermediate furnace doors of the preheating section, the heating section and the soaking section are closed at the same time after stepping;
step three, repeating step two once at regular intervals; the heat treatment time of each aluminum alloy flange is the sum of the time in the heating section and the time in the soaking section;
step four, when the aluminum alloy flange is arranged in the soaking section, and the step two is repeated, the discharging furnace door and the middle furnace doors of the preheating section, the heating section and the soaking section are opened or closed simultaneously;
and discharging the aluminum alloy flange subjected to the heat treatment in the step five through a discharging furnace door under the guidance of a discharging guide plate for subsequent treatment.
Compared with the prior art, the invention has the advantages and positive effects that:
(1) The current situation that a box type solution treatment furnace is mostly adopted for the heat treatment of the aluminum alloy flange is changed, and the solution treatment is carried out on the aluminum alloy flange by using a continuous heat treatment furnace with higher operation efficiency and higher energy utilization rate;
(2) The length of the soaking section is smaller than that of the heating section, the volume of the soaking section is small, the furnace temperature uniformity of the soaking section is higher than that of the heating section, and the temperature uniformity of the aluminum alloy flange before discharging can be improved;
(3) By arranging the first air guide plate and the second air guide plate in the preheating section and the heating section and the soaking section, good hot air circulation passages can be constructed in the preheating section, the heating section and the soaking section, and the furnace temperature uniformity of each section is improved;
(4) The rotating speed of the fan can be adjusted by changing the gear ratio of the driving wheel and the driven wheel matched with the fan driving chain in the first air circulating device, so that the hot air circulating effect can be adjusted.
Drawings
In order to more clearly illustrate the technical scheme of the embodiment of the invention, the drawings needed in the description of the embodiment are briefly introduced below, FIG. 1 is a schematic view of the continuous heat treatment furnace for aluminum alloy flanges provided by the embodiment 1,
FIG. 2 is a schematic view of a first air circulation device in the continuous heat treatment furnace for aluminum alloy flanges,
FIG. 3 is a schematic view of a second air circulating device in the aluminum alloy flange continuous heat treatment furnace,
FIG. 4 is a schematic view of an intermediate furnace door in the aluminum alloy flange continuous heat treatment furnace,
FIG. 5 is a first schematic view of a step-by-step driving device in the continuous heat treatment furnace for aluminum alloy flanges,
FIG. 6 is a schematic view of a step-by-step transmission device in the continuous heat treatment furnace for aluminum alloy flanges.
1-upper furnace body, 2-lower furnace body;
3-step transmission device, 31-chain, 32-discharging plate, 33-driving wheel, 34-driven wheel;
4-middle furnace door, 5-discharging furnace door, 6-heating device, 7-discharging guide plate;
8-first air circulation device, 81-first fan motor, 82-first fan driving chain, 83-fan, 84-first air deflector, 85-bearing seat, 86-main fan shaft;
9-a support frame, 10-a discharging section, 11-a preheating section, 12-a heating section and 13-a soaking section;
14-air circulation device II, 141-fan motor II, 142-air deflector II, 143-industrial fan.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the present invention is not limited to the specific embodiments of the present disclosure.
Example 1
The invention is further described with reference to fig. 1-6, and an aluminum alloy flange continuous heat treatment furnace is shown in fig. 1 and comprises a furnace body, a stepping transmission device 3, a heating device 6, an air circulation device, a furnace door and a support frame 9, wherein the furnace body is arranged on the upper surface of the support frame 9 and is divided into an upper furnace body 1 and a lower furnace body 2, the upper furnace body 1 and the lower furnace body 2 are both cuboid boxes, the inner walls of the upper furnace body and the lower furnace body are provided with refractory material layers, the furnace body is sequentially provided with a discharging section 10, a preheating section 11, a heating section 12 and a soaking section 13 from left to right, and the length of the soaking section 13 is smaller than that of the heating section 12. Because the length of the soaking section 13 is smaller than that of the heating section 12, the volume of the soaking section 13 is small, the furnace temperature uniformity of the soaking section is easier to be higher than that of the heating section 12, and the temperature uniformity of the aluminum alloy flange before discharging can be improved.
As shown in fig. 1 and 2, a step transmission device 3 is horizontally installed in the lower furnace body 2, the upper end face of the step transmission device 3 is flush with the upper end face of the lower furnace body 2, a plurality of aluminum alloy flanges are evenly arranged on the upper end face of the step transmission device 3 at intervals, and the length of the step transmission device 3 is equal to the length inside the lower furnace body 2.
As shown in fig. 1 to 3, the preheating section 11, the heating section 12 and the soaking section 13 are respectively provided with a heating device 6 and an air circulating device.
As shown in fig. 1 and 4, the furnace door comprises a middle furnace door 4 and a discharging furnace door 5, the middle furnace door 4 is arranged at the junction of adjacent sections of a feeding section 10, a preheating section 11, a heating section 12 and a soaking section 13, and the discharging furnace door 5 is arranged at the tail end of the soaking section 13.
The width and the height of the upper furnace body 1 and the lower furnace body 2 are equal, the upper furnace body 1 has no lower end cover, and the lower furnace body 2 has no upper end cover; as shown in fig. 1, the length of the lower furnace body 2 is greater than that of the upper furnace body 1, the upper furnace body 1 is arranged on the upper end surface of the lower furnace body 2, and one end of the upper furnace body 1 is aligned with one end of the lower furnace body 2 in the length direction; the part of the lower furnace body 2, which exceeds the upper furnace body 1 in the length direction, is a discharging section 10; the horizontal projection superposition part of the upper furnace body 1 and the lower furnace body 2 is sequentially divided into a preheating section 11, a heating section 12 and a soaking section 13.
As shown in fig. 2 and 3, the heating device 6 comprises a plurality of resistance wires and a fastening device, the fastening device is cuboid, the resistance wires are vertically and evenly arranged on the lower end face of the fastening device and are electrically connected with an external power supply, and the fastening device is respectively arranged on the left side of the upper surface of the upper furnace body 1 of the preheating section 11 and the heating section 12 and on the rear side of the upper surface of the upper furnace body 1 of the soaking section 13; a plurality of resistance wires below the fastening device are suspended in the upper furnace body 1.
As shown in fig. 5 and 6, the step transmission device 3 includes a material feeding plate 32 and two pairs of chain transmission devices with the same specification, the two pairs of chain transmission devices are installed in parallel at intervals, each pair of chain transmission devices includes a chain 31, a driving wheel 33, a driven wheel 34 and a servo motor, the driving wheel 33 is in driving connection with the servo motor, and the chain 31 is matched with the driving wheel 33 and the driven wheel 34; the material discharging plate 32 is arranged between the two pairs of chains 31, and the material discharging plate 32 can rotate circularly along with the chains 31 (the material discharging plate 32 is composed of a plurality of small units, and one material discharging plate 32 small unit is fixedly connected between the chain units corresponding to the two pairs of chains 31); the material placing plate 32 is provided with a plurality of ventilation holes in a balanced manner.
As shown in fig. 4, vertical partition plates are arranged at the junctions of the adjacent sections of the feeding section 10, the preheating section 11, the heating section 12 and the soaking section 13, the partition plates are divided into an upper partition plate and a lower partition plate, and the upper partition plate and the lower partition plate are respectively fixedly connected with the upper furnace body 1 and the lower furnace body 2; the middle of the upper clapboard is connected with a middle furnace door 4 in a sliding way (the front end and the rear end of the middle furnace door 4 are provided with vertical guide rails, and the corresponding position of the upper clapboard is provided with a chute matched with the guide rails), when the middle furnace door 4 is closed, the lower end surface of the middle furnace door 4 is contacted with the upper end surface of the material placing plate 32; the lower partition plate is provided with a pore which only allows the chain 31 and the emptying plate 32 to pass through.
As shown in fig. 2 and 3, the air circulation device comprises a first air circulation device 8 and a second air circulation device 14, wherein the first air circulation device 8 is respectively arranged at the left side of the preheating section 11 and the heating section 12; the second air circulation device 14 is installed at the rear side of the soaking section 13.
As shown in fig. 2, the first air circulation device 8 includes a first fan motor 81, a fan driving chain 82, a fan 83, a first air deflector 84, a bearing seat 85, and a fan main shaft 86 with a boss.
As shown in fig. 2, the air deflector 84 comprises a horizontal plate and a vertical plate, the vertical plate is vertically and fixedly connected with the upper surface of the left end of the horizontal plate, the vertical plate and the horizontal plate are fixedly connected with the upper parts of the front and rear inner walls of the upper furnace body 1 of the preheating section 11 or the heating section 12, the upper end surface of the vertical plate is not in contact with the top wall of the upper furnace body 1, and the vertical plate has a certain distance (preferably 20 cm) with the left middle furnace door 4 of the preheating section 11 or the heating section 12.
As shown in fig. 2, the fan 83 is arranged on the left side above the transverse plate, the resistance wires of the heating device 6 are arranged on the right side, the center of the upper end surface of the fan 83 is vertically detachably connected with the fan main shaft 86, and the upper end surface of the fan 83 is not higher than the upper end surface of the vertical plate of the air deflector 84; the fan 83 includes a plurality of rectangular fan blades, the horizontal projections of the plurality of fan blades are straight line segments, the ends of the plurality of straight line segments far away from the fan main shaft 86 are located on the same circle, and the center of the circle is located on the central axis of the fan main shaft 86.
As shown in fig. 2, the upper part of the main shaft 86 of the fan penetrates through the top wall of the upper furnace body 1 and is matched with the upper and lower bearing seats 85 which are internally provided with bearings, and the upper and lower bearing seats 85 are both arranged above the upper furnace body 1 (the upper bearing seat 85 is fixedly connected with the upper furnace body 1 through a bracket).
As shown in fig. 2, the boss of the fan main shaft 86 is located immediately above the bearing seat 85 of the upper furnace body 1; the part of the fan main shaft 86, which is positioned between the upper bearing seat 85 and the lower bearing seat 85, is detachably connected with the driven wheel, the fan motor I81 is installed on the side, away from the heating device 6, of the fan main shaft 86, the fan motor I81 is vertically installed above the upper furnace body 1, the output end of the fan motor I81 faces downwards, the output end of the fan motor I81 is connected with the driving wheel in a driving mode, and the fan driving chain 82 is matched with the driving wheel and the driven wheel.
As shown in fig. 3, the second air circulation device 14 includes a second fan motor 141, an industrial fan 143, and a second air guiding plate 142, the second air guiding plate 142 is flat and is horizontally and fixedly connected to the upper portion of the rear side of the inner wall of the upper furnace body 1 of the soaking section 13, a certain distance (preferably 15 cm) exists between the second air guiding plate 142 and the rear wall of the upper furnace body 1, a plurality of resistance wires and the industrial fan 143 of the heating device 6 are arranged above the second air guiding plate 142 from front to rear, the center line of the blade group of the industrial fan 143 is a horizontal line, the industrial fan 143 is in driving connection with the second rear fan motor 141, and the second fan motor 141 is horizontally installed outside the rear wall of the upper furnace body 1 of the soaking section 13 and is perpendicular to the rear wall of the upper furnace body 1.
As shown in figure 1, the aluminum alloy flange continuous heat treatment furnace also comprises a discharging guide plate 7, and the discharging guide plate 7 is arranged below the outer side of the discharging furnace door 5.
The device also comprises a temperature control device, wherein the temperature control device comprises a plurality of thermocouples and a temperature controller which are positioned in a working area (a flat cuboid space above the discharging plate 32).
An aluminum alloy flange heat treatment method based on an aluminum alloy flange continuous heat treatment furnace comprises the following steps:
firstly, the cleaned aluminum alloy flanges are evenly placed on a material placing plate 32 of a stepping transmission device 3 in a material placing section 10;
step two, the middle furnace doors 4 of the preheating section 11, the heating section 12 and the soaking section 13 are opened at the same time, the chain 31 of the stepping transmission device 3 is stepped, and the middle furnace doors 4 of the preheating section 11, the heating section 12 and the soaking section 13 are closed at the same time after stepping;
step three, repeating step two once at regular intervals; the heat treatment time of each aluminum alloy flange is the sum of the time in the heating section 12 and the time in the soaking section 13;
step four, when the soaking section 13 is internally provided with the aluminum alloy flange, and the step two is repeated, the discharging furnace door 5 and the middle furnace doors 4 of the preheating section 11, the heating section 12 and the soaking section 13 are opened or closed simultaneously;
and (5) discharging the aluminum alloy flange subjected to the heat treatment in the step five under the guidance of a discharging furnace door 5 and a discharging guide plate 7 for subsequent treatment.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may apply the above-mentioned technical details to other fields by using the equivalent embodiments with equivalent changes or modifications, but any simple modification and equivalent changes made to the above embodiments according to the technical spirit of the present invention may still fall within the protection scope of the technical solution of the present invention.
Claims (8)
1. The aluminum alloy flange continuous heat treatment furnace comprises a furnace body, a stepping transmission device (3), a heating device (6), an air circulation device, a furnace door and a support frame (9), wherein the furnace body is arranged on the upper surface of the support frame (9), and the aluminum alloy flange continuous heat treatment furnace is characterized in that the heating device (6) comprises a plurality of resistance wires;
the furnace body is divided into an upper furnace body (1) and a lower furnace body (2), the upper furnace body (1) and the lower furnace body (2) are both cuboid boxes, the inner walls of the upper furnace body and the lower furnace body are provided with refractory material layers, the furnace body is sequentially provided with a discharging section (10), a preheating section (11), a heating section (12) and a soaking section (13) from left to right, and the length of the soaking section (13) is smaller than that of the heating section (12);
a step transmission device (3) is horizontally arranged in the lower furnace body (2), the upper end face of the step transmission device (3) is flush with the upper end face of the lower furnace body (2), a plurality of aluminum alloy flanges are evenly arranged on the upper end face of the step transmission device (3) at intervals, and the length of the step transmission device (3) is equal to the internal length of the lower furnace body (2);
the preheating section (11), the heating section (12) and the soaking section (13) are respectively provided with a heating device (6) and an air circulating device;
the furnace door comprises a middle furnace door (4) and a discharging furnace door (5), the middle furnace door (4) is arranged at the junction of the adjacent sections of the discharging section (10), the preheating section (11), the heating section (12) and the soaking section (13), and the discharging furnace door (5) is arranged at the tail end of the soaking section (13);
the air circulation device comprises a first air circulation device (8) and a second air circulation device (14), and the first air circulation device (8) is respectively arranged on the left sides of the preheating section (11) and the heating section (12); the second air circulating device (14) is arranged on the rear side of the soaking section (13);
the first air circulation device (8) comprises a first fan motor (81), a fan driving chain (82), a fan (83), a first air deflector (84), a bearing seat (85) and a fan main shaft (86) with a boss;
the first air guide plate (84) comprises a transverse plate and a vertical plate, the vertical plate is vertically and fixedly connected with the upper surface of the left end of the transverse plate, the vertical plate and the transverse plate are fixedly connected with the upper parts of the front inner wall and the rear inner wall of the upper furnace body (1) of the preheating section (11) or the heating section (12), the upper end surface of the vertical plate is not in contact with the top wall of the upper furnace body (1), and the vertical plate has a certain distance from the middle furnace door (4) on the left side of the preheating section (11) or the heating section (12);
the fan (83) is arranged on the left side above the transverse plate, the resistance wires of the heating device (6) are arranged on the right side, the center of the upper end face of the fan (83) is vertically detachably connected with a fan main shaft (86), and the upper end face of the fan (83) is not higher than the upper end face of a vertical plate of the first air deflector (84); the fan (83) comprises a plurality of rectangular fan blades, the horizontal projections of the fan blades are straight line segments, the ends of the straight line segments, far away from the fan main shaft (86), are positioned on the same circle, and the center of the circle is positioned on the central axis of the fan main shaft (86);
the upper part of the fan main shaft (86) penetrates out of the top wall of the upper furnace body (1) and is matched with an upper bearing seat (85) and a lower bearing seat (85) which are internally provided with bearings, and the upper bearing seat and the lower bearing seat (85) are both arranged above the upper furnace body (1);
the boss of the fan main shaft (86) is positioned above the bearing seat (85); the part of the fan main shaft (86) between the upper bearing seat and the lower bearing seat (85) is detachably connected with the driven wheel, the fan main shaft (86) is far away from the heating device (6) side and is provided with a fan motor I (81), the fan motor I (81) is vertically arranged above the upper furnace body (1), the output end of the fan motor I (81) faces downwards, the output end is in driving connection with the driving wheel, and the fan driving chain (82) is matched with the driving wheel and the driven wheel.
2. An aluminum alloy flange continuous heat treatment furnace according to claim 1, characterized in that the width and height of the upper furnace body (1) and the lower furnace body (2) are equal, the upper furnace body (1) has no lower end cover, and the lower furnace body (2) has no upper end cover;
the length of the lower furnace body (2) is greater than that of the upper furnace body (1), the upper furnace body (1) is arranged on the upper end face of the lower furnace body (2), and one end of the upper furnace body (1) is aligned with one end of the lower furnace body (2) in the length direction;
the part of the lower furnace body (2) in the length direction, which exceeds the upper furnace body (1), is a discharge section (10); the horizontal projection superposition part of the upper furnace body (1) and the lower furnace body (2) is sequentially divided into a preheating section (11), a heating section (12) and a soaking section (13).
3. The aluminum alloy flange continuous heat treatment furnace according to claim 2, wherein the heating device (6) further comprises a fastening device, the fastening device is cuboid, the resistance wires are vertically and uniformly installed on the lower end face of the fastening device and electrically connected with an external power supply, and the fastening device is respectively installed on the left side of the upper surface of the upper furnace body (1) of the preheating section (11), the heating section (12) and the rear side of the upper surface of the upper furnace body (1) of the soaking section (13); and a plurality of resistance wires below the fastening device are suspended in the upper furnace body (1).
4. A continuous thermal treatment furnace for aluminum alloy flanges according to claim 3, characterized in that the step transmission device (3) comprises a material feeding plate (32) and two pairs of chain transmission devices with the same specification,
the two pairs of chain transmission devices are installed in parallel at intervals, each chain transmission device comprises a chain (31), a driving wheel (33), a driven wheel (34) and a servo motor, the driving wheel (33) is in driving connection with the servo motor, and the chain (31) is matched with the driving wheel (33) and the driven wheel (34); the material placing plate (32) is arranged between the two pairs of chains (31), and the material placing plate (32) can rotate circularly along with the chains (31); the material placing plate (32) is provided with a plurality of ventilation holes in a balanced manner.
5. The aluminum alloy flange continuous heat treatment furnace according to claim 4, characterized in that vertical partition plates are arranged at the junctions of adjacent sections of the feeding section (10), the preheating section (11), the heating section (12) and the soaking section (13), the partition plates are divided into an upper partition plate and a lower partition plate, and the upper partition plate and the lower partition plate are respectively fixedly connected with the upper furnace body (1) and the lower furnace body (2);
the middle of the upper partition plate is connected with a middle furnace door (4) in a sliding manner, and when the middle furnace door (4) is closed, the lower end face of the middle furnace door (4) is contacted with the upper end face of the material placing plate (32); the lower partition plate is provided with a pore only allowing the chain (31) and the discharging plate (32) to pass through.
6. The aluminum alloy flange continuous heat treatment furnace according to claim 1, wherein the second air circulation device (14) comprises a second fan motor (141), an industrial fan (143) and a second air guide plate (142), the second air guide plate (142) is flat and is horizontally and fixedly connected with the upper portion of the rear side of the inner wall of the upper furnace body (1) of the soaking section (13), a certain distance exists between the second air guide plate (142) and the rear wall of the upper furnace body (1), a plurality of resistance wires and the industrial fan (143) of the heating device (6) are arranged above the second air guide plate (142) from front to back, the center line of a fan blade group of the industrial fan (143) is a horizontal line, the industrial fan (143) is in driving connection with the second rear fan motor (141), and the second fan motor (141) is horizontally arranged outside the rear wall of the upper furnace body (1) of the soaking section (13) and is perpendicular to the rear wall of the upper furnace body (1).
7. A continuous heat treatment furnace for aluminum alloy flanges according to claim 1, characterized by further comprising a tapping guide plate (7), wherein the tapping guide plate (7) is installed below the outer side of the discharging furnace door (5).
8. The heat treatment method of the aluminum alloy flange is characterized by comprising the following steps of:
firstly, the aluminum alloy flange continuous heat treatment furnace of any one of claims 1 to 7 is used for heat treatment, and the cleaned aluminum alloy flange is evenly placed on a material placing plate (32) of a stepping transmission device (3) in a material placing section (10);
step two, simultaneously opening the middle furnace doors (4) of the preheating section (11), the heating section (12) and the soaking section (13), stepping the chain (31) of the stepping transmission device (3), and simultaneously closing the middle furnace doors (4) of the preheating section (11), the heating section (12) and the soaking section (13) after stepping;
step three, repeating step two once at regular intervals; the heat treatment time of each aluminum alloy flange is the sum of the time in the heating section (12) and the time in the soaking section (13);
step four, when the soaking section (13) is internally provided with an aluminum alloy flange, and the step two is repeated, the discharging furnace door (5) and the middle furnace doors (4) of the preheating section (11), the heating section (12) and the soaking section (13) are opened or closed simultaneously;
and (5) discharging the aluminum alloy flange subjected to the heat treatment in the fifth step from the furnace under the guidance of a discharging furnace door (5) for subsequent treatment.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110264579.2A CN113061704B (en) | 2021-03-11 | 2021-03-11 | Continuous heat treatment furnace for aluminum alloy flange |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110264579.2A CN113061704B (en) | 2021-03-11 | 2021-03-11 | Continuous heat treatment furnace for aluminum alloy flange |
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| CN113061704A CN113061704A (en) | 2021-07-02 |
| CN113061704B true CN113061704B (en) | 2022-12-16 |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006021994A1 (en) * | 2004-08-25 | 2006-03-02 | Nippon Furnace Kogyo Kaisha, Ltd. | Hot air circulation furnance |
| CN101619427A (en) * | 2009-08-13 | 2010-01-06 | 西南铝业（集团）有限责任公司 | Aluminum alloy heating furnace and heat treatment furnace |
| CN202938629U (en) * | 2012-12-18 | 2013-05-15 | 重庆傲典工业炉有限公司 | Heat treatment furnace using waste heat for preheating |
| CN203569151U (en) * | 2013-11-29 | 2014-04-30 | 中冶南方(武汉)威仕工业炉有限公司 | Plate continuous roller bottom type heat treatment furnace |
| CN105316463A (en) * | 2015-11-13 | 2016-02-10 | 嘉兴中岳热处理科技有限公司 | Adjustable gas heating type mesh-belt furnace |
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Address after: 250217 Renjia Village Industrial Park, Guanzhuang street, Zhangqiu District, Jinan City, Shandong Province Applicant after: Shandong Ruiye new energy equipment Co.,Ltd. Address before: 250217 Renjia Village Industrial Park, Guanzhuang street, Zhangqiu District, Jinan City, Shandong Province Applicant before: SHANDONG RUIYE FLANGE Co.,Ltd. |
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