CN105936959A - Hot workpiece fast transfer quenching system - Google Patents
Hot workpiece fast transfer quenching system Download PDFInfo
- Publication number
- CN105936959A CN105936959A CN201610506176.3A CN201610506176A CN105936959A CN 105936959 A CN105936959 A CN 105936959A CN 201610506176 A CN201610506176 A CN 201610506176A CN 105936959 A CN105936959 A CN 105936959A
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- Prior art keywords
- heat
- treatment furnace
- work pieces
- cooling bay
- heated work
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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
-
- 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
-
- 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
- C21D9/0062—Heat-treating apparatus with a cooling or quenching zone
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
Abstract
The invention relates to a hot workpiece fast transfer quenching system which comprises a cooling tank and at least one thermal treatment furnace, wherein the cooling tank and the thermal treatment furnaces are arranged in a split type. Each thermal treatment furnace is provided with a furnace door which can be opened or closed. A material box containing hot workpieces is arranged in each thermal treatment furnace. The hot workpiece fast transfer quenching system is characterized in that a transfer device is arranged between the cooling tank and each thermal treatment furnace and used for transferring the material box in the corresponding thermal treatment furnace into the cooling tank; the whole cooling tank is rectangular, and a water sink, an oil sink and a rinse tank are arranged inside the cooling tank side by side at intervals; and each transfer device is mounted at the upper edge of the cooling tank and reciprocates in the longitudinal direction to take in the material box of the corresponding thermal treatment furnace. By means of the transfer devices, the multiple thermal treatment furnaces are matched with the same cooling tank, the transfer time of the hot workpieces between a thermal treatment process and a cooling process is reasonably utilized, continuous quenching treatment can be conducted on the different hot workpieces, the work efficiency is improved, and energy consumption is lowered.
Description
Technical field
The present invention relates to technical field of heat treatment, particularly relate to a kind of heated work pieces fast transfer quenching system.
Background technology
A few days ago, it is taken out in heat-treatment furnace by the heated work pieces after traditional mode will complete heat treatment by fork truck or suspender, carry out having cooled quenching technical in being transferred to cooling bath, it is independently arranged between heat treatment step and refrigerating work procedure, its inefficiency, and transfer time that heated work pieces is between two-step is long, heated work pieces excessive temperature differentials, owing to quenching technical is strict to the temperature requirement of heated work pieces, under such time situation, heated work pieces has delayed the optimal quenching technical time when coming out of the stove, and affects heated work pieces quality.For this problem, existing processing mode is according to the temperature difference calculating heated work pieces transfer time, by heated work pieces heating-up temperature in heat-treatment furnace higher than its standard heat treatment temperature, make up the temperature difference caused because of length transfer time, its energy consumption is high, and heated work pieces heat treatment temperature is higher, is easily caused the cracking phenomenon in its surface, affect the quenching quality of heated work pieces, cause its percent defective higher.
Chinese invention patent 201510854848.5 discloses a kind of fast transfer quenching mechanism, including in roller-way mechanism of Lu Nei lower floor, stove last time roller-way mechanism, upper and lower door-opening mechanism, quickly turn material platform, quenching chamber seal door mechanism, quenching chamber roller-way mechanism, quenching chamber and quickly turn material platform drive mechanism, when in stove upper strata workpiece possess come out of the stove condition time, send the first enabling signal to upper and lower door-opening mechanism, quickly turn material platform drive mechanism and quenching chamber seal door mechanism, if receiving the feedback signal of this three, then start upper strata roller-way mechanism in stove；When Lu Nei lower floor workpiece possesses and comes out of the stove condition, send the second enabling signal to upper and lower door-opening mechanism, quickly turn material platform drive mechanism and quenching chamber seal door mechanism, if receiving the feedback signal of this three, then start roller-way mechanism of Lu Nei lower floor, this invention shortens the transfer time of workpiece, makes process workpiece have preferable as-quenched.
Although the cooperation that technique scheme is by each mechanism part of Appropriate application, decrease because waiting and the time of repeated priming action waste, thus avoid delaying the optimal cool time of workpiece, but still come with some shortcomings, workpiece is mainly transferred in quenching chamber in heat-treatment furnace by this technical side by roller-way, realize the seriality that workpiece shifts in the horizontal, its structure is complicated, keep the comparison of coherence difficulty between each roller-way, and this quenching mechanism is only applicable to the Quenching Treatment of same workpiece, its structure is single, and narrow application range is inefficient.
Summary of the invention
In place of it is an object of the invention to for the deficiencies in the prior art, a kind of heated work pieces fast transfer quenching system is provided, the transfer device being arranged on cooling bay by utilization, realize multiple heat-treatment furnace to match with same cooling bay, Appropriate application heated work pieces transfer time between heat treatment step and refrigerating work procedure, multiple different heated work pieces can be carried out continuous quenching process, improve work efficiency, heat loss is little, reduces energy consumption.
For achieving the above object, the present invention provides following technical scheme:
A kind of heated work pieces fast transfer quenching system, including cooling bay and the heat-treatment furnace of setting split type with cooling bay, described heat-treatment furnace is provided with the fire door that can open or close, it is internally provided with the material frame being loaded with heated work pieces, it is characterized in that, the quantity of described heat-treatment furnace is at least one, is provided with a transfer device being transferred in cooling bay by the material frame in corresponding heat-treatment furnace between this heat-treatment furnace with cooling bay；Described cooling bay generally rectangle, its internal spacing side by side is provided with tank, oil groove and rinse bath, upper edge that transfer device is installed on cooling bay the material frame moving back and forth along the longitudinal direction in accepting corresponding heat-treatment furnace.
Wherein, the arrangement of the plurality of heat-treatment furnace can be arranged on the side of cooling bay according to the length dimension of cooling bay, guarantee that transfer device can carry out cooling process in quickly and accurately the heated work pieces completing heat treatment process in corresponding heat-treatment furnace being moved to cooling bay, improve work efficiency.
As improvement, described heat-treatment furnace is all vertically arranged with described cooling bay, and its fire door is towards the side of described cooling bay.
As improvement, described transfer device is driven by the first motor and moves longitudinally along cooling bay, this transfer device includes base, travel mechanism and load carrier, this travel mechanism is movably arranged on above base and is driven transverse shifting by the second motor, load carrier is arranged on the side of described travel mechanism, and is vertically moved by the 3rd motor driving.
Corresponding drive mechanism is coordinated by the first motor, the second motor and the 3rd motor, make this transfer device be capable of X-axis, Y-axis and Z-direction can synchronizing moving, in cooling bath corresponding in the heated work pieces fast transfer in corresponding heat-treatment furnace to cooling bay, complete quenching processing technology.Transfer device simple in construction, operates steadily, and between each mechanism, mutually coordinated cooperation, non-interference, and transfer velocity is fast, and work efficiency is high.
As improvement, the upper edge of described cooling bay is provided with the long rails moved longitudinally for transfer device, and the base bottom of transfer device is provided with the first roller matched with described long rails.
As improvement, described base is arranged over cross track, and the bottom of travel mechanism is provided with the second roller matched with this cross track.
As improvement, the described material frame heat treatment time in heat-treatment furnace being loaded with heated work pieces is longer than the time after the workpiece after heat treatment process has been taken out shrend or oil quenching and matting in heat-treatment furnace by transfer device.
As improvement, the outer wall of described heat-treatment furnace is equipped with the gas transmission pipeline being connected with inside it, catches up with gas gas to be driven out of by the air of furnace interior accordingly according to being passed through in Technology for Heating Processing heat treated stove, it is ensured that the thermal treatment quality of heated work pieces.
As improvement, the bottom of described heat-treatment furnace is provided with the placing trough suitable with described load carrier, it is simple to quickly removed by the material frame being equipped with heated work pieces in heat-treatment furnace.
The beneficial effects of the present invention is:
(1) present invention is arranged side by side multiple heat-treatment furnace on the side of cooling bay, and can synchronize different workpieces is carried out heat treatment in each heat-treatment furnace, utilize on cooling bay along the transfer device arranged, and according to the heat treatment time of workpiece by programming Control unit and set transfer device cool time and switch between multiple heat-treatment furnaces, realize multiple heat-treatment furnace and same cooling bay with the use of, Appropriate application heated work pieces transfer time between heat treatment step and refrigerating work procedure, multiple different heated work pieces are carried out continuous quenching process, work efficiency is high, low cost；
(2) by being arranged on after on cooling bay, heated work pieces is taken out in corresponding heat-treatment furnace by the transfer device on edge, utilize the first motor, second motor and the 3rd motor in synchrony automatically control it in X-direction, Y direction and Z-direction move, heated work pieces is quick, accurately, in being transferred to cooling bay continuously, relevant position carries out shrend or oil quenching, the steps such as cleaning, the heat treatment step of heated work pieces is effectively combined by whole process with refrigerating work procedure, transfer time is short, realizing heated work pieces can be quick, it is transferred to refrigerating work procedure exactly from heat treatment process operation, heat loss is little, energy consumption is low, guarantee heated work pieces thermal treatment quality.
In sum, the present invention has stable, and transfer velocity is fast, the advantages such as heat loss is little, and energy consumption is low, highly versatile.
Accompanying drawing explanation
Technical scheme for the clearer explanation embodiment of the present invention, in describing embodiment below, the required accompanying drawing used is briefly described, apparently, drawings discussed below is only some embodiments of the present invention, from the point of view of those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawings according to these accompanying drawings.
The structural representation of a kind of heated work pieces fast transfer quenching system that Fig. 1 is provided by the embodiment of the present invention one；
Fig. 2 is the structural representation of transfer device in the present invention；
Fig. 3 is the structural representation of heat-treatment furnace in the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawings the technical scheme in the embodiment of the present invention is clearly and completely illustrated.
Embodiment one
Referring to the drawings embodiment is illustrated, summary of the invention described in claim is not played any restriction effect by embodiments illustrated below, it addition, the full content of the composition represented by example below is not limited to as necessary to the solution of the invention described in claim.
Fig. 1 is the structural representation of heated work pieces fast transfer system in the embodiment of the present invention two；As it is shown in figure 1,
A kind of heated work pieces fast transfer quenching system, including cooling bay 1 and the heat-treatment furnace 2 of setting split type with cooling bay 1, described heat-treatment furnace 2 is provided with the fire door 20 that can open or close, it is internally provided with the material frame 9 being loaded with heated work pieces, it is characterized in that, the quantity of described heat-treatment furnace 2 is at least one, is provided with a transfer device 3 being transferred in cooling bay 1 by the material frame 9 in corresponding heat-treatment furnace 2 between this heat-treatment furnace 2 with cooling bay 1；Described cooling bay 1 generally rectangle, its internal spacing side by side is provided with tank 11, oil groove 12 and rinse bath 13, and transfer device 3 is installed on the upper edge of cooling bay 1 and moves back and forth the material frame 9 in accepting corresponding heat-treatment furnace 2 along the longitudinal direction.
Multiple heat-treatment furnace 2 the most uniform can be set according to the length dimension of cooling bay 1 on the side of cooling bay 1 in the present embodiment, the arrangement of multiple heat-treatment furnaces 2 and transfer device 3 are consistent along moving direction along cooling bay 1, and, the fire door 20 of each heat-treatment furnace 2 is all towards the side of described cooling bay 1, make mobile device 3 be easy to by the material frame 9 in heat-treatment furnace 2 inside it quickly, accurately take out, shorten the operating time, improve work efficiency.Wherein, the fire door 20 of heat-treatment furnace 2 is 20cm～50cm with the distance at cooling bay 1 edge, it is ensured that transfer device 3 pitches steadiness during feeding frame 9.
Being correspondingly provided with loading bay 7 and discharge pedestal 8 at the feed end of described cooling bay 1 and discharge end respectively, this loading bay 7 and discharge pedestal 8 lay respectively at both sides before and after the multiple heat-treatment furnaces 2 being arranged side by side.
Additionally, the heat treatment time that workpiece is in heat-treatment furnace 2 is longer than the time after the heated work pieces after heat treatment process has been taken out water-cooled or the cold and matting of oil in heat-treatment furnace 2 by transfer device 3, it is ensured that whole process is carried out continuously, and efficiency is high.
In the present embodiment, described transfer device 3 is driven by the first motor 4 and moves longitudinally along cooling bay 1；As shown in Figure 2, transfer device 3 includes base 31, travel mechanism 32 and load carrier 33, this travel mechanism 32 rolls and is arranged on above base 31 and is driven transverse shifting by the second motor 5, load carrier 33 is arranged on the side of described travel mechanism 32, and is driven by the 3rd motor 6 and vertically move.
In the present embodiment, the upper edge of described cooling bay 1 is provided with the long rails 14 that can move forward and backward for transfer device 3, the first roller 311 matched with described long rails 14 is installed bottom the base 31 of transfer device 3, transfer device 3 entirety can be driven to described tank 11, oil groove 12 or the surface of rinse bath 13 by the first motor 4, the shift position of transfer device 3 and the time of staying in corresponding tank 11, oil groove 12 or rinse bath 13, programming Control unit control realization automation mechanized operation can be passed through.Wherein, long rails 14 two ends on cooling bay 1 extend respectively at loading bay 7 and discharge pedestal 8.
Described base 31 is arranged over cross track 312, the bottom of travel mechanism 32 is provided with the second roller 321 matched with this cross track 312, second motor 5 drives travel mechanism 32 and synchronizes to drive load carrier 33 transverse shifting, it is simple to the surface that the heated work pieces in heat-treatment furnace 2 is taken out and quickly moves to cooling bay 1 by load carrier 33.Wherein, load carrier 33 includes elevating mechanism 331 and the load bearing arm 332 paralleled with cross track 312, this elevating mechanism 331 is vertically fixed in travel mechanism 32, load bearing arm 332 can be connected with elevating mechanism 331 by sprocket wheel chain transmission mode, and driven by the 3rd motor 6 and to achieve and move up and down, thus complete lifting and the placement of heated work pieces.
Additionally, as it is shown on figure 3, the bottom of heat-treatment furnace 2 is provided with the placing trough 22 suitable with described load bearing arm 332, it is simple to the material frame 9 being equipped with heated work pieces in heat-treatment furnace 2 is quickly removed.Corresponding drive mechanism is coordinated by first motor the 4, second motor 5 and the 3rd motor 6, make this transfer device 3 be capable of X-axis, Y-axis and Z-direction can synchronizing moving, in cooling bath corresponding in the heated work pieces fast transfer in corresponding heat-treatment furnace 2 to cooling bay 1, complete quenching processing technology.
In said process, by can be upper and lower on cooling bay 1 by transfer device 3, left and right and front and back Accommodation automatically, quickly, in heated work pieces after completing heat treatment in heat treatment process operation exactly is transferred to cooling bay 1, relevant position carries out shrend or the step such as oil quenching and cleaning, effectively heat treatment process operation and the refrigerating work procedure of heated work pieces are combined, reduce heated work pieces heat loss in transfer process between two-step, reduce the energy consumption of heat treatment process operation, guarantee heated work pieces thermal treatment quality, simultaneously, the heat treatment step of multiple different heated work pieces can be matched with same cooling bay by this transfer device 3 simultaneously, make full use of the transfer device 3 transfer time between two-step, improve work efficiency, low cost.
Work process is as follows:
nullUtilize transfer device 3 that workpiece to be heated on loading bay 7 is put into corresponding heat-treatment furnace 2 and carry out heat treatment，After heat treatment completes，First motor 4 task driven transfer device 3 moves to the position with corresponding heat-treatment furnace 2 level of relative along long rails 14，Now，Second motor 5 task driven travel mechanism 32 transversely track 312 drives load bearing arm 332 to move horizontally，3rd motor 6 task driven load bearing arm 332 moves up and down and is adjusted，Load bearing arm 332 is made just through the placing trough 22 in heat-treatment furnace 2 and slowly to be promoted by the material frame 9 being equipped with heated work pieces in heat-treatment furnace 2，Travel mechanism 32 is coordinated quickly heated work pieces to be removed in heat-treatment furnace 2，And cooperation the first motor 4 drives in heated work pieces shifts and is positioned over tank 11 or oil groove 12 after cooling down，Transfer device 3 transfers them on discharge pedestal 8 after being carried out in heated work pieces is positioned over rinse bath 13，Now，Control transfer device 3 move to next complete the position that the heat-treatment furnace 2 of heat treatment is corresponding，So circulation，Whole process operation is stable，Automatically、Quickly、Continuously，The heat loss of heated work pieces is little，Heat-treatment furnace 2 energy consumption is low.
The above; only inventing preferably detailed description of the invention, but protection scope of the present invention is not limited thereto, any those familiar with the art is in the technical scope that the invention discloses; the change that can readily occur in or replacement, all should contain within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (8)
1. heated work pieces fast transfer quenching a system, including cooling bay (1) and with cooling bay (1) split
The heat-treatment furnace (2) that formula is arranged, described heat-treatment furnace (2) is provided with the fire door (20) that can open or close, its
It is internally provided with the material frame (9) being loaded with heated work pieces, it is characterised in that the quantity of described heat-treatment furnace (2)
At least one, it is provided with one between this heat-treatment furnace (2) with cooling bay (1) by corresponding heat-treatment furnace (2)
The transfer device (3) that interior material frame (9) is transferred in cooling bay (1)；Described cooling bay (1) is generally
Rectangle, its internal spacing side by side is provided with tank (11), oil groove (12) and rinse bath (13), transfer device
(3) it is installed on the upper edge of cooling bay (1) and moves back and forth along the longitudinal direction for accepting corresponding heat treatment
Material frame (9) in stove (2).
2. a kind of heated work pieces fast transfer quenching system as claimed in claim 1, it is characterised in that described heat
Process stove (2) to be all vertically arranged with described cooling bay (1), and its fire door (20) is towards described cooling bay (1)
Side.
3. a kind of heated work pieces fast transfer quenching system as claimed in claim 1, it is characterised in that described turn
Moving device (3) is driven by the first motor (4) and moves longitudinally along cooling bay (1), this transfer device
(3) including base (31), travel mechanism (32) and load carrier (33), this travel mechanism (32) lives
Moving and be arranged on base (31) top and driven transverse shifting by the second motor (5), load carrier (33) sets
Put the side in described travel mechanism (32), and vertically moved by the 3rd motor (6) driving.
4. a kind of heated work pieces fast transfer quenching system as claimed in claim 3, it is characterised in that described cold
But the upper edge of pond (1) is provided with the long rails (14) moved longitudinally for transfer device (3), transfer
Base (31) bottom of device (3) is provided with the first roller (311) matched with described long rails (14).
5. a kind of heated work pieces fast transfer quenching system as claimed in claim 3, it is characterised in that the described end
Seat (31) is arranged over cross track (312), and the bottom of travel mechanism (32) is provided with and this cross track
(312) the second roller (321) matched.
6. heated work pieces quick shifting method as claimed in claim 1 a kind of, it is characterised in that described in be loaded with
The material frame (9) of the heated work pieces cool time in heat-treatment furnace (2) be longer than transfer device (3) by quenching at
Workpiece (20) after reason has taken out the time after shrend or oil quenching and matting in heat-treatment furnace (2).
7. a kind of heated work pieces fast transfer quenching system as claimed in claim 1, it is characterised in that described heat
Process and be additionally provided with, on the outer wall of stove (2), the gas transmission pipeline (21) being connected with inside it.
8. a kind of heated work pieces fast transfer quenching system as claimed in claim 3, it is characterised in that described heat
The bottom processing stove (2) is provided with the placing trough (22) suitable with described load carrier (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610506176.3A CN105936959A (en) | 2016-06-27 | 2016-06-27 | Hot workpiece fast transfer quenching system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610506176.3A CN105936959A (en) | 2016-06-27 | 2016-06-27 | Hot workpiece fast transfer quenching system |
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| CN105936959A true CN105936959A (en) | 2016-09-14 |
Family
ID=56873405
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610506176.3A Pending CN105936959A (en) | 2016-06-27 | 2016-06-27 | Hot workpiece fast transfer quenching system |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108004378A (en) * | 2017-11-29 | 2018-05-08 | 绩溪县徽洋车桥有限责任公司 | The cooling device of auto parts machinery processing |
| CN108165723A (en) * | 2018-01-02 | 2018-06-15 | 嘉兴市禾兴自润轴承开发有限公司 | A kind of solution device for bearing |
| CN106868270B (en) * | 2017-02-27 | 2018-08-07 | 鞍钢集团工程技术有限公司 | A kind of slab and special heavy plate quenching experimental device and method |
| CN110004281A (en) * | 2019-04-03 | 2019-07-12 | 马鞍山市恒强合金科技有限公司 | A kind of heat treatment Full-automatic heating furnace and its working method |
| CN110453060A (en) * | 2019-09-11 | 2019-11-15 | 东莞市升华炉具设备有限公司 | Homogenizer |
| CN111115144A (en) * | 2020-01-23 | 2020-05-08 | 爱协林热处理系统(北京)有限公司 | Automatic production line for heat treatment of workpieces with automatic process transfer transport vehicle |
| CN113943851A (en) * | 2021-09-13 | 2022-01-18 | 荆门索立特热能技术股份有限公司 | Full-automatic heat treatment system and method for large workpiece |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106868270B (en) * | 2017-02-27 | 2018-08-07 | 鞍钢集团工程技术有限公司 | A kind of slab and special heavy plate quenching experimental device and method |
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| CN110004281A (en) * | 2019-04-03 | 2019-07-12 | 马鞍山市恒强合金科技有限公司 | A kind of heat treatment Full-automatic heating furnace and its working method |
| CN110004281B (en) * | 2019-04-03 | 2020-08-11 | 马鞍山市恒强合金科技有限公司 | Full-automatic heating furnace for heat treatment and working mode thereof |
| CN110453060A (en) * | 2019-09-11 | 2019-11-15 | 东莞市升华炉具设备有限公司 | Homogenizer |
| CN111115144A (en) * | 2020-01-23 | 2020-05-08 | 爱协林热处理系统(北京)有限公司 | Automatic production line for heat treatment of workpieces with automatic process transfer transport vehicle |
| CN113943851A (en) * | 2021-09-13 | 2022-01-18 | 荆门索立特热能技术股份有限公司 | Full-automatic heat treatment system and method for large workpiece |
| CN113943851B (en) * | 2021-09-13 | 2023-06-30 | 荆门索立特热能技术股份有限公司 | Full-automatic heat treatment system and heat treatment method for large workpiece |
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Application publication date: 20160914 |
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| RJ01 | Rejection of invention patent application after publication |