CN112063809A - Vertical quenching furnace for aluminum profiles - Google Patents
Vertical quenching furnace for aluminum profiles Download PDFInfo
- Publication number
- CN112063809A CN112063809A CN202011024944.4A CN202011024944A CN112063809A CN 112063809 A CN112063809 A CN 112063809A CN 202011024944 A CN202011024944 A CN 202011024944A CN 112063809 A CN112063809 A CN 112063809A
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- Prior art keywords
- furnace body
- furnace
- quenching
- buffer
- aluminum profile
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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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/62—Quenching devices
- C21D1/63—Quenching devices for bath quenching
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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
- 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
- C21D9/005—Furnaces in which the charge is moving up or down
-
- 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
- C22F1/002—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working by rapid cooling or quenching; cooling agents used therefor
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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
Abstract
The application provides a vertical aluminum profile quenching furnace, which belongs to the technical field of quenching furnaces and comprises a rack, a furnace body and a quenching bath, wherein the furnace body is arranged on the rack; the furnace body comprises a shell, a heat insulation layer and an alumina ceramic tube which are sequentially arranged from outside to inside, wherein a heat insulation block is arranged below the alumina ceramic tube, and a driving mechanism for driving the heat insulation block to move towards the outside of the furnace body is arranged at one end of the heat insulation block, which is far away from the furnace body; the frame is provided with a blanking buffer mechanism which is arranged between the furnace body and the quenching bath; and one side of the furnace body is provided with an overhauling platform. The method can avoid the splashing of the quenching liquid, and improves the safety of the work; through setting up the maintenance platform, the maintenance is convenient for overhaul and maintain.
Description
Technical Field
The application relates to the technical field of quenching furnaces, in particular to a vertical aluminum profile quenching furnace.
Background
The quenching furnace is a furnace for heating workpieces before quenching. Quenching is to put the workpiece into a furnace, heat the workpiece to a quenching temperature above a critical point, keep the workpiece for a period of time, and then quickly take the workpiece out of the furnace and put the workpiece into a quenching liquid.
Because the quenching transfer time is fast, the furnace door is required to be opened quickly, and the workpiece can be immersed into the medium of the quenching tank quickly. Among the prior art, the furnace body is inside to be divided into the zone of heating and heat preservation district, in order to improve the heat preservation effect, the bottom in heat preservation district is equipped with the collets, need remove the collets earlier before taking out the sample, because the work piece need fall into fast and quench in the liquid, cause the safety problem such as splashing of quenching liquid easily, because the furnace body height is higher, does not have the platform to supply the maintainer to stand during the maintenance, causes the potential safety hazard equally.
Disclosure of Invention
To the problem that exists among the prior art, this application provides a vertical quenching furnace of aluminium alloy to reach and avoid quenching liquid to spatter, improve the beneficial effect of the security of work.
The application provides a vertical aluminum profile quenching furnace, which comprises a rack, a furnace body and a quenching bath, wherein the furnace body is arranged on the rack, the quenching bath is arranged at the bottom of the furnace body, a furnace cover is arranged at the top of the furnace body, a lifting mechanism is arranged at the upper part of the furnace body, and a workpiece to be processed moves up and down in the furnace body through the lifting mechanism; the furnace body comprises a shell, a heat insulation layer and an alumina ceramic tube which are sequentially arranged from outside to inside, the heat insulation layer and the alumina ceramic tube are fixed on the frame by the shell, the surface of the alumina ceramic tube is provided with a plurality of spiral grooves wound with furnace wires, a heat insulation block is arranged below the alumina ceramic tube, and one end of the heat insulation block, which is far away from the furnace body, is provided with a driving mechanism for driving the heat insulation block to move outwards; the frame is provided with a blanking buffer mechanism which is arranged between the furnace body and the quenching bath; and one side of the furnace body is provided with an overhauling platform.
Further, the frame comprises a base and supporting legs arranged at the bottom of the base, a second through hole is formed in the base, and the quenching bath is arranged below the second through hole; the blanking buffer mechanism is arranged at the bottom of the base and comprises a first buffer plate and a second buffer plate which are arranged relatively, one side of the first buffer plate is connected with the supporting leg in a rotating mode, one side of the second buffer plate is connected with the supporting leg in a rotating mode, the other side of the first buffer plate is arranged relatively to the other side of the second buffer plate, and the upper ends of the first buffer plate and the second buffer plate are connected with the bottom of the base through reset springs.
Furthermore, the included angle between the first buffer plate and the second buffer plate facing the base is A, and 90 degrees < A ≦ 180 degrees.
Furthermore, when the return spring is in an unstressed state, no gap exists between the first buffer plate and the second buffer plate, and one ends, opposite to each other, of the first buffer plate and the second buffer plate are respectively provided with a high-temperature-resistant elastic buffer layer.
Furthermore, a supporting plate is arranged on the outer side wall of the bottom of the furnace body, the driving mechanism is arranged on the supporting plate, and the driving mechanism adopts one of an air cylinder, an expansion rod or a hydraulic cylinder.
Further, the upper portion of furnace body is equipped with the crossbeam, hoist mechanism includes motor, speed reducer, pivot, reel, wire rope and couple, and the motor passes through the rotation of speed reducer drive pivot, and the reel is installed in the pivot, and wire rope twines on the reel, and the couple setting is served at wire rope's one, and the work piece setting of treating processing is on the couple.
Furthermore, the longitudinal section of the furnace cover is T-shaped, the upper end of the furnace cover is arranged at the upper end of the furnace body, the lower end of the furnace cover is arranged inside the furnace body, a high-temperature-resistant sealing ring is arranged between the furnace cover and the furnace body, and a third through hole for a workpiece to pass through is formed in the furnace cover.
Further, the overhaul platform comprises an overhaul platform, a ladder and guardrails, the overhaul platform is arranged on one side of the furnace body, the lower end of the overhaul platform is provided with the ladder, the guardrail is arranged on the outer surface of the overhaul platform, the ladder is obliquely arranged, the upper end of the ladder is fixedly connected with the outer side wall of the furnace body, and the lower end of the ladder is fixedly connected with the rack.
Furthermore, the length of the supporting leg is adjustable.
Furthermore, the upper end of the ladder is connected with the furnace body through a horizontal cross rod, and a reinforcing rib is arranged between the horizontal cross rod and the furnace body.
The beneficial effect of this application lies in:
according to the vertical aluminum profile quenching furnace, the blanking buffer mechanism is arranged, so that quenching liquid can be prevented from splashing when a workpiece falls into a quenching bath, and the working safety is improved; the elastic buffer layer is arranged, so that the impact force between the workpiece and the first buffer plate and the impact force between the workpiece and the second buffer plate are reduced; the driving mechanism is arranged on one side of the heat-insulating block, so that the heat-insulating block can be conveniently and rapidly moved, the time for the workpiece to fall into the quenching bath is shortened, the surface of the workpiece is prevented from being oxidized, the internal metallographic structure is prevented from changing, meanwhile, the heat loss is reduced, and the utilization rate of energy is improved; one side of furnace body is equipped with overhauls the platform, overhauls the bottom of platform and is equipped with the ladder, easy access and operation.
In addition, the design principle of the application is reliable, the structure is simple, and the application prospect is very wide.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram I of a vertical quenching furnace for aluminum profiles with workpieces in a furnace body according to an embodiment of the invention.
Fig. 2 is a schematic structural view of the aluminum profile vertical quenching furnace when a workpiece touches the buffer plate in one embodiment of the invention.
Fig. 3 is a schematic structural diagram of the vertical aluminum profile quenching furnace when the workpiece falls into the quenching bath in one embodiment of the invention.
Fig. 4 is a schematic structural diagram of the vertical aluminum profile quenching furnace with the workpiece in the furnace body according to an embodiment of the invention.
In the figure, 1, a quenching bath, 2, a furnace cover, 3, a workpiece, 4, a shell, 5, a heat insulation layer, 6, an alumina ceramic tube, 7, a heat insulation block, 8, a driving mechanism, 9, a base, 10, supporting legs, 11, a horizontal cross bar, 12, a second through hole, 13, a first buffer plate, 14, a second buffer plate, 15, a reset spring, 16, a reinforcing rib, 17, a cross beam, 18, a motor, 19, a speed reducer, 20, a rotating shaft, 21, a winding drum, 22, a steel wire rope, 23, an inspection platform, 24, a ladder, 25 and a guardrail.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The following explains key terms appearing in the present application.
As shown in fig. 1-4, the aluminum profile vertical quenching furnace provided by the present application includes a frame, a furnace body and a quenching bath 1, wherein the furnace body is arranged on the frame, and the quenching bath 1 is arranged at the bottom of the furnace body.
Specifically, the frame comprises a base 9 and supporting legs 10 arranged at the bottom of the base 9, and the base 9 is of a rectangular flat plate structure. The number of the supporting legs 10 is four, and the four supporting legs 10 are uniformly distributed on four corners of the bottom of the base 9. The length of the supporting legs 10 is adjustable, the base 9 is provided with a second through hole 12, the quenching bath 1 is arranged below the second through hole 12, and the workpiece 3 falls into the quenching bath 1 after passing through the second through hole 12.
The top of furnace body is equipped with bell 2, the longitudinal section of bell 2 becomes the T type, the upper end of bell 2 sets up the upper end at the furnace body, the lower extreme setting of bell 2 is inside the furnace body, be equipped with high temperature resistant sealing washer between bell 2 and the furnace body.
The upper portion of furnace body is equipped with hoist mechanism, the upper portion of furnace body is equipped with crossbeam 17, hoist mechanism includes motor 18, speed reducer 19, pivot 20, reel 21, wire rope 22 and couple, and motor 18 passes through speed reducer 19 drive pivot 20 and rotates, and reel 21 is installed on pivot 20, and wire rope 22's one end winding is on reel 21, and the couple setting is on wire rope 22's the other end, and the work piece 3 of treating processing sets up on the couple, and in order to protect work piece 3, also can set up the work piece basket, and the work piece basket is hung on the couple, and work piece 3 sets up in the work piece basket. And a third through hole for the workpiece 3 or the workpiece basket to pass through is formed in the furnace cover 2, the steel wire rope 22 passes through the third through hole, and the workpiece 3 to be processed moves up and down in the furnace body through the lifting mechanism.
The furnace body includes casing 4, heat preservation 5 and the alumina ceramics pipe 6 that set gradually by outer to interior, casing 4 fixes heat preservation 5 and alumina ceramics pipe 6 on base 9, the surface of alumina ceramics pipe 6 is equipped with many helicla flutes with around having the stove silk, the below of alumina ceramics pipe 6 is equipped with heat preservation 7, and the one end of keeping away from the furnace body on heat preservation 7 is equipped with the actuating mechanism 8 that drive heat preservation 7 removed to the furnace body outside, in this embodiment, be equipped with backup pad 16 on the lateral wall of furnace body bottom, actuating mechanism 8 sets up in backup pad 16. To reduce the footprint, a cylinder is preferred. In other embodiments, the driving mechanism 8 may also be one of a telescopic rod or a hydraulic cylinder.
The blanking buffer mechanism is arranged on the frame and is arranged between the furnace body and the quenching bath 1. Blanking buffer gear sets up the bottom at base 9, blanking buffer gear is including relative first buffer board 13 and the second buffer board 14 that sets up, the left side and the supporting leg 10 of first buffer board 13 rotate to be connected, and the right side and the supporting leg 10 of second buffer board 14 rotate to be connected, the right side of first buffer board 13 sets up with the right side of second buffer board 14 relatively, and first buffer board 13 all links to each other with the bottom of base 9 through reset spring 15 with the upper surface of second buffer board 14. The included angle between the first buffer plate 13 and the second buffer plate 14 facing the base 9 is a, and in this embodiment, the value of a is 120 degrees. The opposite sides of the first buffer plate 13 and the second buffer plate 14 are recessed downward, and when the workpiece 3 collides with the first buffer plate 13 and the second buffer plate 14, the buffering function is achieved. In other embodiments, A may take on values from 90 degrees to 180 degrees.
When the return spring 15 is in an unstressed state, no gap is formed between the first buffer plate 13 and the second buffer plate 14, and one ends of the first buffer plate 13 and the second buffer plate 14, which are opposite to each other, are respectively provided with a high-temperature-resistant elastic buffer layer.
Through setting up first buffer plate 13 and second buffer plate 14, the quenching liquid that can avoid work piece 3 to fall into quenching bath 1 splashes all around, has improved the security of work. By providing the elastic buffer layer, the impact force of the workpiece 3 with the first buffer plate 13 and the second buffer plate 14 is reduced.
And one side of the furnace body is provided with an overhauling platform. The maintenance platform comprises a maintenance platform 23, a ladder 24 and guardrails 25, the maintenance platform 23 is arranged on one side of the furnace body, the lower end of the maintenance platform 23 is provided with the ladder 24, the outer surface of the maintenance platform 23 is provided with the guardrails 25, the ladder 24 is obliquely arranged, the upper end of the ladder 24 is fixedly connected with the outer side wall of the furnace body, and the lower end of the ladder 24 is fixedly connected with the frame. The upper end of the ladder 24 is connected with the furnace body through a horizontal cross bar 11, and a reinforcing rib 16 is arranged between the horizontal cross bar 11 and the furnace body.
The implementation manner of the embodiment is as follows:
in the actual work in-process, the motor passes through the speed reducer drive reel and rotates, drive the work piece downstream through wire rope, the work piece passes and enters into the cavity of furnace body behind the third through hole on the bell, the work piece is after heating and heat preservation, the starter motor drives wire rope and continues the downstream, drive mechanism drive that heat insulating block moves outward to the furnace body, make the work piece leave the furnace body and pass the second through hole on the base, the work piece continues the whereabouts, the work piece touches the position of first buffer board and the two butt joints of second buffer board, first buffer board and second buffer board are under reset spring's effect, downstream, make first buffer board and the two separation of second buffer board, the work piece passes through the clearance between first buffer board and the second buffer board, finally fall into the quenching pond.
Although the present application has been described in detail with reference to the accompanying drawings in conjunction with the preferred embodiments, the present application is not limited thereto. Various equivalent modifications or substitutions can be made on the embodiments of the present application by those skilled in the art without departing from the spirit and scope of the present application, and these modifications or substitutions are intended to be covered by the present application/any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. The vertical aluminum profile quenching furnace is characterized in that: the quenching furnace comprises a frame, a furnace body and a quenching bath (1), wherein the furnace body is arranged on the frame, the quenching bath (1) is arranged at the bottom of the furnace body, a furnace cover (2) is arranged at the top of the furnace body, a lifting mechanism is arranged at the upper part of the furnace body, and a workpiece (3) to be processed moves up and down in the furnace body through the lifting mechanism; the furnace body comprises a shell (4), a heat-insulating layer (5) and an alumina ceramic tube (6) which are sequentially arranged from outside to inside, the heat-insulating layer (5) and the alumina ceramic tube (6) are fixed on a frame by the shell (4), a plurality of spiral grooves wound with furnace wires are arranged on the surface of the alumina ceramic tube (6), a heat-insulating block (7) is arranged below the alumina ceramic tube (6), and a driving mechanism (8) for driving the heat-insulating block (7) to move outwards of the furnace body is arranged at one end, far away from the furnace body, of the heat-insulating block (7); a blanking buffer mechanism is arranged on the frame and is arranged between the furnace body and the quenching bath (1); and one side of the furnace body is provided with an overhauling platform.
2. The vertical aluminum profile quenching furnace as claimed in claim 1, wherein: the frame comprises a base (9) and supporting legs (10) arranged at the bottom of the base (9), a second through hole (12) is formed in the base (9), and the quenching bath (1) is arranged below the second through hole (12); blanking buffer gear sets up the bottom at base (9), blanking buffer gear is including relative first buffer board (13) and the second buffer board (14) that set up, one side and supporting leg (10) of first buffer board (13) rotate to be connected, and one side and supporting leg (10) of second buffer board (14) rotate to be connected, the opposite side of first buffer board (13) sets up with the opposite side of second buffer board (14) relatively, and first buffer board (13) all link to each other with the bottom of base (9) through reset spring (15) with the upper end of second buffer board (14).
3. The vertical aluminum profile quenching furnace as claimed in claim 2, wherein: the included angle degree between the first buffer plate (13) and the second buffer plate (14) and towards the base (9) is A, and 90 degrees < A ≦ 180 degrees.
4. The vertical aluminum profile quenching furnace as claimed in claim 2, wherein: when the return spring (15) is in an unstressed state, no gap is formed between the first buffer plate (13) and the second buffer plate (14), and one ends, opposite to each other, of the first buffer plate (13) and the second buffer plate (14) are respectively provided with a high-temperature-resistant elastic buffer layer.
5. The vertical aluminum profile quenching furnace as claimed in claim 2, wherein: the driving mechanism (8) is arranged on the base (9), and the driving mechanism (8) adopts one of an air cylinder, an expansion rod or a hydraulic cylinder.
6. The vertical aluminum profile quenching furnace as claimed in claim 1, wherein: the upper portion of furnace body is equipped with crossbeam (17), hoist mechanism includes motor (18), speed reducer (19), pivot (20), reel (21), wire rope (22) and couple, and motor (18) pass through speed reducer (19) drive pivot (20) and rotate, and reel (21) are installed on pivot (20), and wire rope (22) twine is on reel (21), and the couple setting is served at one of wire rope (22), treats that work piece (3) of processing set up on the couple.
7. The vertical aluminum profile quenching furnace as claimed in claim 6, characterized in that: the vertical section of bell (2) becomes the T type, the upper end setting of bell (2) is in the upper end of furnace body, the lower extreme setting of bell (2) is inside the furnace body, be equipped with high temperature resistant sealing washer between bell (2) and the furnace body, be equipped with the third through hole that supplies the work piece to pass through on bell (2).
8. The vertical aluminum profile quenching furnace as claimed in claim 1, wherein: the maintenance platform comprises a maintenance platform (23), a ladder (24) and guardrails (25), the maintenance platform (23) is arranged on one side of the furnace body, the lower end of the maintenance platform (23) is provided with the ladder (24), the outer surface of the maintenance platform (23) is provided with the guardrails (25), the ladder (24) is obliquely arranged, the upper end of the ladder (24) is fixedly connected with the outer side wall of the furnace body, and the lower end of the ladder (24) is fixedly connected with the frame.
9. The vertical aluminum profile quenching furnace as claimed in claim 2, wherein: the length of the supporting leg (10) is adjustable.
10. The vertical aluminum profile quenching furnace as claimed in claim 8, wherein: the upper end of the ladder (24) is connected with the furnace body through a horizontal cross bar (11), and a reinforcing rib (16) is arranged between the horizontal cross bar (11) and the furnace body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011024944.4A CN112063809A (en) | 2020-09-25 | 2020-09-25 | Vertical quenching furnace for aluminum profiles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011024944.4A CN112063809A (en) | 2020-09-25 | 2020-09-25 | Vertical quenching furnace for aluminum profiles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112063809A true CN112063809A (en) | 2020-12-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011024944.4A Pending CN112063809A (en) | 2020-09-25 | 2020-09-25 | Vertical quenching furnace for aluminum profiles |
Country Status (1)
| Country | Link |
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| CN (1) | CN112063809A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0085733A1 (en) * | 1982-02-10 | 1983-08-17 | Nippon Steel Corporation | Vertical continuous annealing furnace and its operating method |
| CN205170926U (en) * | 2015-11-23 | 2016-04-20 | 苏州市职业大学 | Vertical quenching furnace |
| CN106755823A (en) * | 2016-12-09 | 2017-05-31 | 昆山市长发铝业有限公司 | A kind of upright quenching furnace |
| CN106975799A (en) * | 2017-05-25 | 2017-07-25 | 浙江明佳环保科技有限公司 | A kind of copper rod cutter device of automatic charging |
| CN210945741U (en) * | 2019-11-28 | 2020-07-07 | 南京沃环科技实业有限公司 | Vertical aluminum alloy quenching furnace |
| CN211339603U (en) * | 2020-01-13 | 2020-08-25 | 天津天鑫旺达金属热处理股份有限公司 | Vertical quenching furnace |
-
2020
- 2020-09-25 CN CN202011024944.4A patent/CN112063809A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0085733A1 (en) * | 1982-02-10 | 1983-08-17 | Nippon Steel Corporation | Vertical continuous annealing furnace and its operating method |
| CN205170926U (en) * | 2015-11-23 | 2016-04-20 | 苏州市职业大学 | Vertical quenching furnace |
| CN106755823A (en) * | 2016-12-09 | 2017-05-31 | 昆山市长发铝业有限公司 | A kind of upright quenching furnace |
| CN106975799A (en) * | 2017-05-25 | 2017-07-25 | 浙江明佳环保科技有限公司 | A kind of copper rod cutter device of automatic charging |
| CN210945741U (en) * | 2019-11-28 | 2020-07-07 | 南京沃环科技实业有限公司 | Vertical aluminum alloy quenching furnace |
| CN211339603U (en) * | 2020-01-13 | 2020-08-25 | 天津天鑫旺达金属热处理股份有限公司 | Vertical quenching furnace |
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Application publication date: 20201211 |
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| RJ01 | Rejection of invention patent application after publication |