CN109065270B - Full-automatic annealing furnace for cable cores - Google Patents
Full-automatic annealing furnace for cable cores Download PDFInfo
- Publication number
- CN109065270B CN109065270B CN201811014851.6A CN201811014851A CN109065270B CN 109065270 B CN109065270 B CN 109065270B CN 201811014851 A CN201811014851 A CN 201811014851A CN 109065270 B CN109065270 B CN 109065270B
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- box body
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- sealing door
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- 238000000137 annealing Methods 0.000 title claims abstract description 21
- 238000007789 sealing Methods 0.000 claims abstract description 52
- 238000010438 heat treatment Methods 0.000 claims abstract description 30
- 229920000742 Cotton Polymers 0.000 claims description 3
- 238000002955 isolation Methods 0.000 claims description 3
- 238000004321 preservation Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000004044 response Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/0016—Apparatus or processes specially adapted for manufacturing conductors or cables for heat treatment
-
- 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
- C21D1/26—Methods of annealing
- C21D1/30—Stress-relieving
-
- 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
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/54—Furnaces for treating strips or wire
- C21D9/56—Continuous furnaces for strip or wire
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Materials Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Child & Adolescent Psychology (AREA)
- Health & Medical Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Furnace Details (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
The invention discloses a full-automatic annealing furnace for a cable core, which comprises a box body, a sealing door, a circulating fan, a heating device, a temperature sensor and a cable conveying device, wherein the box body is provided with a sealing door; an opening is formed in one side face of the box body, and the rest of the box body is closed; the heating device is arranged on the box body and enables the heating part to be arranged in the cavity of the box body; at least one circulating fan is arranged on the box body, and the fan blade part is arranged in the box body cavity; the temperature sensor is arranged in the cavity of the box body; the cable conveying device is arranged at the opening of the box body and used for conveying cables into the cavity of the box body, and the sealing door is arranged at the opening of the box body and used for sealing the box body in an openable and closable manner. A eliminate inside a large amount of stress that exists of cable wire for carrying out plastic operation to cable wire after, and degree of automation is high, convenient to use, effectual.
Description
Technical Field
The invention relates to a cable core annealing device, in particular to a full-automatic annealing furnace for a cable core.
Background
At present, in cable production, because the cable wire needs to be subjected to shaping operation, on the one hand, the temperature of the cable wire is relatively high, and on the other hand, a large number of defects such as stress concentration and cracks exist in the cable wire, so that the subsequent production and processing operation of the cable and the quality of a cable product are seriously influenced.
Disclosure of Invention
The invention aims at: the full-automatic annealing furnace for the cable core is provided for eliminating a large amount of stress in the cable wire after the cable wire is shaped.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
a full-automatic annealing furnace for a cable core comprises a box body, a sealing door, a circulating fan, a heating device, a temperature sensor and a cable conveying device;
an opening is formed in one side face of the box body, and the rest of the box body is closed; the heating device is arranged on the box body and enables the heating part to be arranged in the cavity of the box body; at least one circulating fan is arranged on the box body, and the fan blade part is arranged in the box body cavity; the temperature sensor is arranged in the cavity of the box body;
the cable conveying device comprises a rack, a guide rail, a storage rack, a driving motor, a driving wheel, a driven wheel and rollers, wherein at least two guide rails are arranged in parallel, one end of each guide rail extends into a box cavity from an opening of the box, a rack supporting guide rail is arranged outside the box, the storage rack is arranged above the guide rail, a plurality of rollers connected with the storage rack are arranged below the storage rack and are in contact fit with the guide rail, the rollers are enabled to move on the guide rail all the time, a storage table with a flat upper surface is arranged on the storage rack, the driving wheel is movably connected to the end, far away from the box, of the rack, the driving wheel is connected with an output shaft of the driving motor arranged on the rack, the driven wheel is arranged at the bottom of the box cavity, the driven wheel is movably connected with the box, an annular driving belt is arranged to connect the driven wheel and the driving wheel, and a chain on one side of the driving belt is rigidly connected to the storage rack;
the sealing door is arranged at the opening of the box body in an openable and closable manner and is used for sealing the box body.
As a still further scheme of the invention, a sealing structure is arranged in the box cavity, and the edge of the object placing table is embedded when the object placing shelf enters the box cavity, the outer side of the sealing structure is in sealing connection with the inner wall of the box body, and a U-shaped groove is arranged on the inner side of the sealing structure, and the edge of the object placing table can be embedded into the U-shaped groove.
As a still further proposal of the invention, the sealing door for sealing the box body at the opening of the box body is arranged in an automatic opening and closing mode.
As a still further scheme of the invention, one side of the sealing door is hinged on the box body through a hinge, the other side of the sealing door is provided with a bolt which is controlled by a telescopic device to realize up-down telescopic operation, and a fixed seat for the bolt to be inserted into for locking the sealing door is fixed on the box body; the box body is also provided with an automatic door opening and closing device for realizing automatic opening and closing of the sealing door.
As still further scheme of the invention, the automatic door opening and closing device comprises a swing arm, a chute, a rack and a second telescopic device; one end of the swing arm is provided with a rotating shaft perpendicular to the swing arm, the upper end of the rotating shaft is provided with a gear, and the other end of the swing arm is provided with a toggle pin; the pivot of swing arm passes through the connecting seat and rotates to be connected on the box, the spout sets up at the sealing door and makes the toggle pin card of swing arm go into in the recess of spout, the second telescoping device is fixed on the box to make flexible end connection rack and gear engagement.
As a still further proposal of the invention, the circulating fan and the heating device are arranged at the upper top part in the box cavity, and the isolating net is arranged below the circulating fan and the heating device in the box cavity.
As a still further proposal of the invention, the end of the guide rail on the frame is provided with a limiting block.
As a still further proposal of the invention, the side wall of the box body is of a sandwich structure, and high-temperature resistant heat preservation cotton filling is arranged in the sandwich structure.
The invention has the beneficial effects that: the full-automatic annealing furnace for the cable core is used for eliminating a large amount of stress in the cable wire after the cable wire is shaped, and has the advantages of high degree of automation, convenience in use and good effect.
Drawings
FIG. 1 is a schematic diagram of a structural formula of a full-automatic annealing furnace for a cable core;
FIG. 2 is a schematic view of a structure of a fully automatic annealing furnace for a cable core in another state;
FIG. 3 is a schematic view of a partial structure of a fully automatic annealing furnace for cable cores after being cut;
fig. 4 is an enlarged view of the portion a of the present invention.
In the figure: 1-box, 2-sealing door, 3-circulating fan, 4-heating device, 5-temperature sensor, 6-cable conveyor, 7-cable, 8-control system operation box, 11-seal structure, 12-hinge, 13-telescoping device, 14-bolt, 15-fixing base, 16-automatic door opening and closing device, 61-frame, 62-guide rail, 63-supporter, 64-driving motor, 65-action wheel, 66-driven wheel, 67-gyro wheel, 68-drive belt, 69-stopper, 111-U type recess, 161-swing arm, 162-spout, 163-rack, 164-second telescoping device, 631-object placing table, 1611-pivot, 1612-gear, 1613-toggle pin.
Detailed Description
The following description of the embodiments of the present invention will be made more fully hereinafter with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention.
Referring to fig. 1 to 4, a full-automatic annealing furnace for cable cores comprises a box body 1, a sealing door 2, a circulating fan 3, a heating device 4, a temperature sensor 5 and a cable conveying device 6;
an opening is formed in one side face of the box body 1, and the rest of the box body is closed; the heating device 4 is arranged on the box body 1 and enables the heating part to be arranged in the cavity of the box body 1; at least one circulating fan 3, wherein the circulating fan 3 is arranged on the box body 1 and enables the fan blade part to be arranged in the cavity of the box body 1; the temperature sensor 5 is arranged in the cavity of the box body 1;
the cable conveying device 6 comprises a rack 61, a guide rail 62, a storage rack 63, a driving motor 64, a driving wheel 65, a driven wheel 66 and a roller 67, wherein at least two guide rails 62 are arranged in parallel, one end of each guide rail extends into a cavity of the box 1 from an opening of the box 1, the rack 61 is arranged outside the box 1 to support the guide rail 62, the storage rack 63 is arranged above the guide rail 62, a plurality of rollers 67 connected with the storage rack 63 are arranged below the storage rack 63 to be in contact fit with the guide rail 62, the rollers 67 are always movable on the guide rail 62, a storage platform 631 with a flat upper surface is arranged on the storage rack 63, the driving wheel 65 is movably connected to the end, far away from the box 1, of the rack 61, the driving wheel 65 is connected with an output shaft of the driving motor 64 arranged on the rack 61, the driven wheel 66 is arranged at the bottom of the cavity of the box 1, the driven wheel 66 is movably connected with the box 1, an annular driving belt 68 is arranged to connect the driven wheel 66 with the driving wheel 65, and a chain on one side of the driving belt 68 is rigidly connected to the storage rack 63;
the sealing door 2 is arranged at the opening of the box body 1 in an openable and closable manner and is used for sealing the box body.
When the cable core is annealed by the full-automatic annealing furnace, firstly, the sealing door 2 is opened, the driving motor 64 is started to start the storage rack 63 to a position on the rack 61 outside the box body 1, and an operator moves the cable core to place the cable core on the object placing table 631 for stacking; then the driving motor 64 is started, the driving motor 64 drives the driving wheel 65 to rotate and drives the driving belt 68 to rotate, the driving belt 68 drives the storage rack 63 and moves the cable core into the cavity of the box body 1, then the sealing door 2 is closed, the heating device 4 is started to heat the air in the cavity of the box body 1, the started circulating fan 3 is utilized to drive the hot air circulation in the cavity of the box body 1, the temperature in the cavity of the box body 1 is uniform, the cable core is caused to be heated uniformly, the temperature sensor 5 is used for detecting the temperature in the cavity of the box body 1, the heating device 4 and the circulating fan 3 are coordinated to work, the heating device 4 is controlled to adjust the heating power to implement heat preservation treatment after the temperature sensor 5 detects the temperature in the cavity of the box body to reach the temperature required by annealing, and the power of the heating device 4 is continuously reduced or the heating device 4 is closed to cool after the heat preservation process stage is completed. After the annealing treatment is completed, the sealing door 2 is opened, and the driving motor 64 is started to drive the cable core to move out of the box body 1.
The cable core moves into and out of the box body 1 through the cable conveying device 6, so that the loading and unloading operation of the cable core during annealing is simplified, and the working efficiency is improved. The heating device 4 can be an electric heating tube in a resistance heating mode, the temperature sensor 5 can be an online infrared temperature measuring sensor, the magnetic sensor monitors in real time, the response is quick, the monitoring temperature change range is large, and the heating device is convenient to use in cooperation with the heating device 4. The driving wheel 65 and the driven wheel 66 can adopt chain wheels, the driving belt 68 can adopt chains with the same modulus as the driving wheel 65 and the driven wheel 66, the chain driving response is fast, the designated displacement is not lost, the strength is high, and the control is easy. The side wall of the box body 1 can be arranged into a sandwich structure, and heat preservation cotton for high temperature is arranged in the sandwich layer, so that the heat preservation and heat insulation effect of the furnace body is improved.
The inside of the box body 1 is provided with a sealing structure 11 for embedding the edge of the object placing table 631 when the object placing shelf 63 enters the box body 1, the outer side of the sealing structure 11 is in sealing connection with the inner wall of the box body 1, and the inner side of the sealing structure is provided with a U-shaped groove 111 for embedding the edge of the object placing table 631. The arrangement can isolate the lower part of the object placing table 631 from the upper part, so that the leakage of hot air is avoided, and the heat preservation effect is enhanced.
The sealing door 2 for sealing the box body at the opening of the box body 1 is arranged in an automatic opening and closing mode. One side of the sealing door 2 is hinged on the box body 1 through a hinge 12, the other side of the sealing door is provided with a bolt 14 which is controlled by a telescopic device 13 to realize up-down telescopic operation, and a fixed seat 15 for the bolt 14 to be inserted into for locking the sealing door 2 is fixed on the box body 1; the box body 1 is also provided with an automatic door opening and closing device 16 for realizing automatic opening and closing of the sealing door 2. The automatic door opening and closing device 16 comprises a swing arm 161, a sliding chute 162, a rack 163 and a second telescopic device 164; one end of the swing arm 161 is provided with a rotating shaft 1611 perpendicular to the swing arm 161, the upper end of the rotating shaft 1611 is provided with a gear 1612, and the other end of the swing arm 161 is provided with a toggle pin 1613; the rotating shaft 1611 of the swing arm 161 is rotatably connected to the box 1 through a connecting seat 1614, the sliding groove 162 is arranged on the sealing door 2, the toggle pin 1613 of the swing arm 161 is clamped into the groove of the sliding groove 162, the second telescopic device 164 is fixed on the box 1, and the telescopic end connecting rack 163 is meshed with the gear 1612. The automatic opening and closing of the sealing door 2 is realized through the arrangement in the above manner, and the second telescopic device 164 pushes and pulls the rack 163 to move so as to drive the swing arm 161 to swing, so that the automatic opening and closing of the sealing door 2 is realized. The principle of the arrangement is simple, and the manufacture is simple.
The circulating fan 3 and the heating device 4 are arranged at the upper top part in the cavity of the box body 1, and the isolation net 17 is arranged below the circulating fan 3 and the heating device 4 in the cavity of the box body 1. The isolation net 17 is arranged to avoid unnecessary impact on the heating device 4 and the circulating fan 3 during maintenance or use, and influence the use.
A limiting block 69 is arranged at the tail end of the guide rail 62 on the frame 61. For restricting the most distal position of the shelf 63 when it is withdrawn from the case 1, and for being placed outside the disengaging guide 62.
The device can be uniformly connected into a control system provided with a control system operation box, and the control system coordinates and mobilizes the operation of each device through the operation of the control system, so that high automation is realized.
The full-automatic annealing furnace for the cable core is used for eliminating a large amount of stress in the cable wire after the cable wire is shaped, and has the advantages of high degree of automation, convenience in use and good effect.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (4)
1. The utility model provides a cable core is with full-automatic annealing stove which characterized in that: comprises a box body (1), a sealing door (2), a circulating fan (3), a heating device (4), a temperature sensor (5) and a cable conveying device (6); an opening is formed in one side face of the box body (1), and the rest of the box body is closed; the heating device (4) is arranged on the box body (1) and enables the heating part to be arranged in the cavity of the box body (1); at least one circulating fan (3), wherein the circulating fan (3) is arranged on the box body (1) and enables the fan blade part to be arranged in the cavity of the box body (1); the temperature sensor (5) is arranged in the cavity of the box body (1); the cable conveying device (6) comprises a rack (61), a guide rail (62), a storage rack (63), a driving motor (64), a driving wheel (65), a driven wheel (66) and a roller (67), wherein at least two guide rails (62) are arranged in parallel, one end of each guide rail extends into a cavity of the box body (1) from an opening of the box body (1), the rack (61) is arranged outside the box body (1) to support the guide rail (62), the storage rack (63) is arranged above the guide rail (62), a plurality of rollers (67) connected with the storage rack (63) are arranged below the storage rack (63) to be in contact fit with the guide rail (62), the rollers (67) are always movable on the guide rail (62), a storage table (631) with a flat upper surface is arranged on the storage rack (63), the driving wheel (65) is movably connected with an end far away from the box body (1) and is connected with an output shaft of the driving motor (64) arranged on the box body (61), the driven wheel (66) is arranged at the bottom of the cavity of the box body (1) and is connected with the driven wheel (66) in a ring-shaped form (68), and a chain on one side of the driving belt (68) is rigidly connected to the commodity shelf (63); the sealing door (2) is arranged at the opening of the box body (1) in an openable and closable manner and is used for sealing the box body, a sealing structure (11) for enabling the edge of the storage table (631) to be embedded when the storage rack (63) enters the cavity of the box body (1) is arranged in the cavity of the box body (1), the outer side of the sealing structure (11) is in sealing connection with the inner wall of the box body (1), a U-shaped groove (111) is formed in the inner side of the sealing structure, the edge of the storage table (631) can be embedded into the U-shaped groove (111), and the sealing door (2) for sealing the box body at the opening of the box body (1) is arranged in an automatic opening and closing mode;
one side of the sealing door (2) is hinged on the box body (1) through a hinge (12), the other side of the sealing door is provided with a bolt (14) which is controlled by a telescopic device (13) to realize up-down telescopic, and a fixed seat (15) for the bolt (14) to be inserted into to lock the sealing door (2) is fixed on the box body (1); the box body (1) is also provided with an automatic door opening and closing device (16) for realizing automatic opening and closing of the sealing door (2);
the automatic door opening and closing device (16) comprises a swing arm (161), a chute (162), a rack (163) and a second telescopic device (164); one end of the swing arm (161) is provided with a rotating shaft (1611) perpendicular to the swing arm (161), the upper end of the rotating shaft (1611) is provided with a gear (1612), and the other end of the swing arm (161) is provided with a toggle pin (1613); the rotating shaft (1611) of the swing arm (161) is rotationally connected to the box body (1) through the connecting seat (1614), the sliding groove (162) is formed in the sealing door (2) and enables the toggle pin (1613) of the swing arm (161) to be clamped into the groove of the sliding groove (162), the second telescopic device (164) is fixed to the box body (1), and the telescopic end connecting rack (163) is meshed with the gear (1612).
2. The fully automatic annealing furnace for cable cores according to claim 1, wherein: the circulating fan (3) and the heating device (4) are arranged at the upper top part in the cavity of the box body (1), and an isolation net (17) is arranged below the circulating fan (3) and the heating device (4) in the cavity of the box body (1).
3. The fully automatic annealing furnace for cable cores according to claim 1, wherein: a limiting block (69) is arranged at the tail end of a guide rail (62) on the stand (61).
4. The fully automatic annealing furnace for cable cores according to claim 1, wherein: the side wall of the box body (1) is of a sandwich structure, and high-temperature-resistant heat-insulating cotton filling is arranged in the sandwich structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811014851.6A CN109065270B (en) | 2018-08-31 | 2018-08-31 | Full-automatic annealing furnace for cable cores |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811014851.6A CN109065270B (en) | 2018-08-31 | 2018-08-31 | Full-automatic annealing furnace for cable cores |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109065270A CN109065270A (en) | 2018-12-21 |
| CN109065270B true CN109065270B (en) | 2023-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811014851.6A Active CN109065270B (en) | 2018-08-31 | 2018-08-31 | Full-automatic annealing furnace for cable cores |
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| CN (1) | CN109065270B (en) |
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| CN111816369A (en) * | 2020-06-02 | 2020-10-23 | 国网辽宁省电力有限公司沈阳供电公司 | High-conductivity steel core soft aluminum stranded wire integral annealing device and annealing process |
| CN111829178B (en) * | 2020-07-15 | 2021-07-09 | 深圳市卓宝科技股份有限公司 | Heating and heat-preserving method for asphalt paint bucket |
| CN111893286B (en) * | 2020-07-27 | 2022-01-28 | 湖南晚梦馨家俱有限公司 | Mattress spring destressing annealing equipment |
| CN112746164A (en) * | 2020-12-29 | 2021-05-04 | 安徽铜冠铜箔集团股份有限公司 | Electronic copper foil stress relieving device and method |
| CN113334673B (en) * | 2021-04-28 | 2022-05-17 | 湖北龙运汽车配件有限公司 | Heating and curing device for brake pad production |
| CN115212929A (en) * | 2022-06-28 | 2022-10-21 | 太原煤科检测技术有限公司 | Environmental test chamber |
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| CN205774664U (en) * | 2016-05-29 | 2016-12-07 | 江西太平洋电缆集团有限公司 | A kind of efficient cable annealing device |
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| KR101815237B1 (en) * | 2016-08-11 | 2018-01-05 | 주식회사 화인 코리아 | Heat treatmnet oven for heating cable |
| CN207210476U (en) * | 2017-07-17 | 2018-04-10 | 杭州杭申节能炉窑有限公司 | Car-type circulating air annealing furnace |
| CN207552386U (en) * | 2017-12-08 | 2018-06-29 | 重庆柳开机械铸造有限公司 | One kind is used for alloy steel parts production annealing furnace |
| CN207793361U (en) * | 2017-10-16 | 2018-08-31 | 昆明市丰晨电线电缆制造有限公司 | It is automatically fed into the annealing device of cable |
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2018
- 2018-08-31 CN CN201811014851.6A patent/CN109065270B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205774664U (en) * | 2016-05-29 | 2016-12-07 | 江西太平洋电缆集团有限公司 | A kind of efficient cable annealing device |
| KR101815237B1 (en) * | 2016-08-11 | 2018-01-05 | 주식회사 화인 코리아 | Heat treatmnet oven for heating cable |
| CN206672711U (en) * | 2017-04-17 | 2017-11-24 | 广东胜宇电缆实业有限公司 | A kind of full-automatic fireproof cable annealing device |
| CN207210476U (en) * | 2017-07-17 | 2018-04-10 | 杭州杭申节能炉窑有限公司 | Car-type circulating air annealing furnace |
| CN207793361U (en) * | 2017-10-16 | 2018-08-31 | 昆明市丰晨电线电缆制造有限公司 | It is automatically fed into the annealing device of cable |
| CN207552386U (en) * | 2017-12-08 | 2018-06-29 | 重庆柳开机械铸造有限公司 | One kind is used for alloy steel parts production annealing furnace |
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| CN109065270A (en) | 2018-12-21 |
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