CN104060059A - High-strength aluminum alloy online quenching system and online quenching technology - Google Patents
High-strength aluminum alloy online quenching system and online quenching technology Download PDFInfo
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- CN104060059A CN104060059A CN201410312898.6A CN201410312898A CN104060059A CN 104060059 A CN104060059 A CN 104060059A CN 201410312898 A CN201410312898 A CN 201410312898A CN 104060059 A CN104060059 A CN 104060059A
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Abstract
The invention discloses a high-strength aluminum alloy online quenching system and an online quenching technology of the high-strength aluminum alloy online quenching system. The high-strength aluminum alloy online quenching system comprises an extruding machine, a heat preservation furnace, a quenching device and a dragging machine. The online quenching technology includes the steps of preheating aluminum alloy cast rods, carrying out hot extrusion while dragging is carried out, carrying out heat preservation or heating for heat preservation, and carrying out quenching treatment. After the high-strength aluminum alloy online quenching system and the online quenching technology of the high-strength aluminum alloy online quenching system are adopted, the time of the whole transferring process that aluminum alloy profile leaves a profile outlet of the extruding machine to reach the quenching device for rapid cooling quenching treatment is quite short, immediate online quenching and continuous production after the process that the aluminum alloy profile is extruded to from product parts is completed are achieved, the production cycle is greatly shortened, and the coincidence of the product quality is guaranteed; in the production process, heat losses are few, energy consumption is low, energy is saved, the environment is improved, energy is saved by more than 80% compared with the vertical air furnace quenching technology, and the economic benefits are substantial.
Description
Technical field
The present invention relates to aldural heat treatment technics field, relate in particular to a kind of for aldural being carried out to system and the press quenching technique thereof of press quenching.
Background technology
In aldural series, 2XXX line aluminium alloy is called duralumin, and 7XXX line aluminium alloy is called ultralumin.These two serial aluminium alloys are because hardness is high, resistance to deformation is large, and in the time that aluminium alloy cast rod is hot extruded into aluminium alloy extrusions, extrusion speed is very slow, general all speed between 0.8-3.5 m/min.Because slow like this speed can not ensure the whole aluminium alloy extrusions temperature consistence squeezing out, therefore can not realize press quenching.At present, great majority adopt vertical air stoves to quench to aluminium alloy extrusions, and its technological process is: aluminium alloy cast rod preheating → be squeezed into aluminium alloy extrusions → cooling aluminium alloy extrusions → wear iron wire → aluminium alloy extrusions is hung up to hanging scaffold → aluminium alloy extrusions is put into the heating → insulation of vertical air stove with extrusion machine after the port boring of aluminium alloy extrusions is reached to quenching temperature → aluminium alloy extrusions is come out of the stove and quench in cooling fluid.
The problem that this technique exists is:
(1) the aluminium alloy extrusions self-temperature very high (more than 440 DEG C) being extruded by extrusion machine hot extrude, but this part heat is not fully utilized, but be naturally lost in surrounding environment, aluminium alloy extrusions is cooled to normal temperature, and before follow-up quenching step, also needing that the aluminium alloy extrusions of normal temperature is put into vertical air stove reheats, heats up, is incubated and reaches needed quenching temperature, therefore this quenching technology energy consumption is very high, ambient temperature is high, severe operational environment; The investment costliness of vertical air stove, the investment of a vertical air stove is conventionally between 1,000,000 yuan-1,000 ten thousand yuans (according to upright quenching furnace height difference); In addition also to build, the deep well of a quenching use.Therefore, whole plant investment is large.
(2) this quenching technology is batch production, and aluminium alloy extrusions can not be realized on-line continuous and quench, and the production cycle is longer, generally needs the time of 2-3 days.
Summary of the invention
First technical problem to be solved by this invention is: a kind of aldural press quenching system is provided, this press quenching system makes full use of the heat of the aluminium alloy extrusions being squeezed out by extrusion machine own and reaches fast quenching temperature, with save energy, reduction energy consumption; Realize the press quenching of aluminium alloy extrusions simultaneously, produce continuously, shorten the production cycle, enhance productivity.
Second technical problem to be solved by this invention is: a kind of press quenching technique of applying aldural press quenching system is provided.
For solving above-mentioned first technical problem about aldural press quenching system, technical scheme of the present invention is: aldural press quenching system, comprising:
Extrusion machine, described ectrusion press is in the aluminium alloy cast rod after preheating is hot extruded into aluminium alloy extrusions;
Holding furnace, described holding furnace is horizontal tubular structure, and the entrance of described holding furnace arranges near the section bar outlet of described extrusion machine, and described holding furnace is used for the aluminium alloy extrusions being hot extruded into by described extrusion machine to be incubated, or heats and be incubated;
Quenching device, described quenching device, near the outlet setting of described holding furnace, quenches for the aluminium alloy extrusions extruded product part to coming from described holding furnace; With
Tractor, described tractor comprise driven by power set can be along the tow tractor of track linear reciprocating motion, described track runs through described quenching device and described holding furnace, described tow tractor is provided with fixture, and described fixture is for clamping one end of the aluminium alloy extrusions that comes from described extrusion machine section bar outlet.
In technique scheme, preferably, described holding furnace comprises body of heater, and described body of heater is provided with thermal insulation layer; Described body of heater inner chamber is provided with heating unit and temperature element; Described body of heater intracavity bottom is provided with the some cylinders for transmitting described aluminium alloy extrusions; On the described body of heater of the ingress of close described holding furnace, be provided with Access Door.
In technique scheme, preferably, described quenching device comprises some cooling spray pipes of arranging in the form of a ring, and the setting party of some described cooling spray pipes is to consistent with the direction of motion of described aluminium alloy extrusions, and the spray orifice on some described cooling spray pipes is centripetal setting.
In technique scheme, preferably, also be provided with the cold bed for placing the aluminium alloy extrusions extruded product part after quenching in the downstream of described quenching device, be provided with for the drawing machine to the tension leveling of described aluminium alloy extrusions extruded product part at the side of described cold bed.
For solving above-mentioned second technical problem about aldural press quenching technique, technical scheme of the present invention is: aldural press quenching technique, comprises the following steps:
S10, the running of described tractor, described power set drives described tow tractor along described orbital motion to the section bar exit near described extrusion machine;
S20, aluminium alloy cast rod by described extrusion machine after to preheating carry out hot extrusion;
The fixture of S30, described tow tractor clamps one end of the aluminium alloy extrusions squeezing out; When described extrusion machine carries out hot extrusion to aluminium alloy cast rod, the aluminium alloy extrusions that described tow tractor sync pulling squeezes out enters in described holding furnace;
S40, the insulation in described holding furnace of described aluminium alloy extrusions, or be heated and be incubated;
S50, extrusion machine push complete, make an aluminium alloy extrusions extruded product part, when described aluminium alloy extrusions extruded product part reaches quenching temperature in described holding furnace, described tow tractor walks to quenching device fast along aluminium alloy extrusions extruded product part described in described track drawing, by described quenching device, aluminium alloy extrusions extruded product part is carried out to quench treatment.
In above-mentioned quenching technology technical scheme, preferably, also comprise: S60, stretching step, the aluminium alloy extrusions extruded product part by drawing machine after to quench treatment carries out tension leveling processing.
Owing to having adopted technique scheme, aldural press quenching system of the present invention comprises extrusion machine, holding furnace, quenching device and tractor, while producing aluminium alloy extrusions extruded product part, the power set of tractor drives tow tractor orbiting to the section bar exit near extrusion machine, aluminium alloy cast rod by extrusion machine after to preheating carries out hot extrusion molding, the firm section bar outlet of leaving extrusion machine in one end of aluminium alloy extrusions, just the fixture that is pulled car clamps, when extrusion machine carries out hot extrusion to aluminium alloy cast rod, the aluminium alloy extrusions that tow tractor sync pulling squeezes out enters in holding furnace, the process of tow tractor sync pulling has played tension leveling effect to aluminium alloy extrusions, can guarantee follow-up quenching time, distortion is minimum, during due to hot extrusion, aluminium alloy cast rod self-temperature is very high, substantially approach quenching temperature, and the aluminium alloy extrusions one of extrusion molding leaves the section bar outlet of extrusion machine, in the situation that almost there is no heat loss, just be pulled car traction and enter holding furnace insulation, avoid calorific loss, now holding furnace only need provide little heat, even do not need aluminium alloy extrusions to heat, aluminium alloy extrusions just can reach quenching temperature, and aluminium alloy extrusions one reaches quenching temperature, just being pulled car traction leaves fast holding furnace and enters quenching device, by quenching device, it is carried out to quick Cooling Quenching processing.Afterwards, power set drives tow tractor again to move to the section bar exit near extrusion machine along track, carries out next working cycle.
Adopt after aldural press quenching system of the present invention and press quenching technique thereof, leave the section bar outlet of extrusion machine from aluminium alloy extrusions, at holding furnace insulation or heating and thermal insulation, carry out quick Cooling Quenching processing to quenching device, the whole transfer process time is very short, actual production shows only with several minutes, instant press quenching, production continuously after aluminium alloy extrusions extruded product part has pushed are realized, ensure the consistence of quality product, than existing quenching technology, the production cycle shortens greatly; The setting of holding furnace and tractor, has guaranteed that, in production process, transfer time is short, and calorific loss is few, and energy consumption is low, has both saved the energy, has improved again environment, and actual production shows, compared with traditional vertical air stove quenching technology, and can save energy more than 80%.
Brief description of the drawings
Fig. 1 is the layout schematic diagram of the aldural press quenching system of the embodiment of the present invention;
Fig. 2 is the A-A diagrammatic cross-section in Fig. 1;
Fig. 3 is the schematic process flow diagram of the aldural press quenching technique of the embodiment of the present invention;
In figure: 1-tractor; 2-cold bed; 3-quenching device; 4-holding furnace; 41-thermal insulation layer; 42-heating unit; 43-temperature element; 44-cylinder; 45-aluminium alloy extrusions extruded product part; 5-Access Door; 6-aluminium alloy extrusions; 7-extrusion machine; 8-drawing machine; 9-track.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further non-limitingly described.
In Fig. 1, arrow is depicted as the traffic direction of aluminium alloy extrusions.As shown in Figure 1, the aldural press quenching system of the embodiment of the present invention, comprising:
Extrusion machine 7, extrusion machine 7 is for being hot extruded into aluminium alloy extrusions by the aluminium alloy cast rod after preheating;
Holding furnace 4, holding furnace 4 is horizontal tubular structure, and wherein, the entrance of holding furnace 4 arranges near the section bar outlet of extrusion machine 7, and holding furnace 4 is for the aluminium alloy extrusions being hot extruded into by extrusion machine 7 is incubated, or heats and be incubated;
Quenching device 3, this quenching device 3, near the outlet setting of holding furnace 4, carries out quench treatment for the aluminium alloy extrusions extruded product part to coming from holding furnace 4; With
Tractor 1, this tractor 1 comprise using motor as power set drive can be along the tow tractor of track 9 linear reciprocating motions, wherein, track 9 runs through quenching device 3 and holding furnace 4 and arranges, on tow tractor, be provided with fixture, this fixture is used for clamping one end of the aluminium alloy extrusions of the section bar outlet of coming from extrusion machine 7.Tractor is the traction type equipment of widespread use in prior art, in inferior structure and the principle of work thereof that no longer describes and illustrate tractor in detail.
As shown in Figure 2, in the present embodiment, holding furnace 4 comprises body of heater, is provided with thermal insulation layer 41 on body of heater; Be provided with heating unit 42 and temperature element 43 at body of heater inner chamber; Be provided with the some cylinders 44 for transmitting aluminium alloy extrusions at body of heater intracavity bottom; On the body of heater of the ingress near holding furnace 4, be provided with Access Door 5.When the fixture of tow tractor is in the time that clamping aluminium alloy extrusions goes wrong, can open the Access Door 5 that this activity arranges, by manually helping handling failure.
Wherein, the structure of quenching device 3 can be: comprise some cooling spray pipes of arranging in the form of a ring, the setting party of some cooling spray pipes is to consistent with the direction of motion of aluminium alloy extrusions, and the spray orifice on some cooling spray pipes is centripetal setting (not specifically signal in figure).Or adopt the structure for quenching of other routines.
As shown in Figure 1, also can further, be provided for placing the cold bed 2 of the aluminium alloy extrusions extruded product part after quenching in the downstream of quenching device 3, be provided for aluminium alloy extrusions extruded product part to carry out at the side of cold bed 2 drawing machine 8 of tension leveling.
As shown in Figure 3, the aldural press quenching technique of the embodiment of the present invention, comprises the following steps:
S1, for the aldural of different trade mark series, according to temperature parameter requirement separately, preheating aluminium alloy cast rod, carries out homogenizing processing to it, the temperature of the aldural homogenizing processing of different trade mark series is different, but temperature range is at 460 DEG C-550 DEG C; The extrusion mould of pre-heat extruder 7, the preheating temperature of extrusion mould is according to the aldural of different trade mark series and different, and the preheating temperature of extrusion mould is at 420 DEG C-480 DEG C;
S10, tractor 1 turn round, and drive tow tractor to move to the section bar exit near extrusion machine 7 along track 9 by power set, wait for the aluminium alloy extrusions that traction squeezes out;
S20, extrusion machine 7 carry out hot extrusion by its extrusion mould to aluminium alloy cast rod;
The fixture of S30, tow tractor clamps one end of the aluminium alloy extrusions 6 squeezing out; When extrusion machine 7 carries out Continuous Heat extruding to aluminium alloy cast rod, the aluminium alloy extrusions 6 that tow tractor sync pulling squeezes out enters in holding furnace 4;
S40, higher aluminium alloy extrusions 6 insulation in holding furnace 4 of self temperature, the setting of thermal insulation layer 41 makes holding furnace 4 have good heat insulation effect; When temperature element 43 records while not yet reaching quenching temperature, by heating unit 42, aluminium alloy extrusions is heated, because entering holding furnace 4, aluminium alloy extrusions 6 self compaction machines 7 almost there is no heat loss, self temperature is higher, therefore 42 need of heating unit provide little heat just can make aluminium alloy extrusions reach quenching temperature;
S50, extrusion machine 7 push complete, make an aluminium alloy extrusions extruded product part 45, this aluminium alloy extrusions extruded product part 45 one reaches quenching temperature in holding furnace 4, tow tractor draws at once this aluminium alloy extrusions extruded product part 45 along track 9 and walks to fast quenching device 3, by quenching device 3, aluminium alloy extrusions extruded product part 45 is carried out to quench treatment.Afterwards, power set drives tow tractor again to move to the section bar exit near extrusion machine 7 along track 9, carries out next working cycle.
In above-mentioned quenching technology technical scheme, also further comprise: S60, stretching step, the aluminium alloy extrusions extruded product part 45 quench treatment being placed on cold bed 2 by drawing machine 8 carries out conventional tension leveling processing.
Adopt after aldural press quenching system of the present invention and press quenching technique thereof, leave the section bar outlet of extrusion machine from aluminium alloy extrusions, at holding furnace insulation or heating and thermal insulation, carry out quick Cooling Quenching processing to quenching device, the whole transfer process time is very short, actual production shows only with several minutes, instant press quenching, production continuously after aluminium alloy extrusions extruded product part has pushed are realized, than existing quenching technology, production cycle shortens greatly, has ensured the consistence of quality product; The setting of holding furnace and tractor, has guaranteed that, in production process, transfer time is short, and calorific loss is few, energy consumption is low, has both saved the energy, has improved again environment, and actual production shows, compared with traditional vertical air stove quenching technology, can save energy more than 80%, obtain objective economic benefit.Aldural press quenching system of the present invention and press quenching technique thereof can be widely used in the aldurals such as 2XXX system, 7XXX system, 6XXX system.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have multiple change and variation.Within the spirit and principles in the present invention all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (7)
1. aldural press quenching system, is characterized in that, comprising:
Extrusion machine, described ectrusion press is in the aluminium alloy cast rod after preheating is hot extruded into aluminium alloy extrusions;
Holding furnace, described holding furnace is horizontal tubular structure, and the entrance of described holding furnace arranges near the section bar outlet of described extrusion machine, and described holding furnace is used for the aluminium alloy extrusions being hot extruded into by described extrusion machine to be incubated, or heats and be incubated;
Quenching device, described quenching device, near the outlet setting of described holding furnace, quenches for the aluminium alloy extrusions extruded product part to coming from described holding furnace; With
Tractor, described tractor comprise driven by power set can be along the tow tractor of track linear reciprocating motion, described track runs through described quenching device and described holding furnace, described tow tractor is provided with fixture, and described fixture is for clamping one end of the aluminium alloy extrusions that comes from described extrusion machine section bar outlet.
2. aldural press quenching system as claimed in claim 1, is characterized in that: described holding furnace comprises body of heater, and described body of heater is provided with thermal insulation layer; Described body of heater inner chamber is provided with heating unit and temperature element; Described body of heater intracavity bottom is provided with the some cylinders for transmitting described aluminium alloy extrusions.
3. aldural press quenching system as claimed in claim 2, is characterized in that: on the described body of heater of the ingress of close described holding furnace, be provided with Access Door.
4. the aldural press quenching system as described in claim 1,2 or 3, it is characterized in that: described quenching device comprises some cooling spray pipes of arranging in the form of a ring, the setting party of some described cooling spray pipes is to consistent with the direction of motion of described aluminium alloy extrusions, and the spray orifice on some described cooling spray pipes is centripetal setting.
5. aldural press quenching system as claimed in claim 4, it is characterized in that: be also provided with the cold bed for placing the aluminium alloy extrusions extruded product part after quenching in the downstream of described quenching device, be provided with for the drawing machine to the tension leveling of described aluminium alloy extrusions extruded product part at the side of described cold bed.
6. application rights requires a press quenching technique for the aldural press quenching system described in 1, it is characterized in that, comprises the following steps:
S10, the running of described tractor, described power set drives described tow tractor along described orbital motion to the section bar exit near described extrusion machine;
S20, aluminium alloy cast rod by described extrusion machine after to preheating carry out hot extrusion;
The fixture of S30, described tow tractor clamps one end of the aluminium alloy extrusions squeezing out; When described extrusion machine carries out hot extrusion to aluminium alloy cast rod, the aluminium alloy extrusions that described tow tractor sync pulling squeezes out enters in described holding furnace;
S40, the insulation in described holding furnace of described aluminium alloy extrusions, or be heated and be incubated;
S50, extrusion machine push complete, make an aluminium alloy extrusions extruded product part, when described aluminium alloy extrusions extruded product part reaches quenching temperature in described holding furnace, described tow tractor walks to quenching device fast along aluminium alloy extrusions extruded product part described in described track drawing, by described quenching device, aluminium alloy extrusions extruded product part is carried out to quench treatment.
7. press quenching technique as claimed in claim 6, is characterized in that, also comprises: S60, stretching step, the aluminium alloy extrusions extruded product part by drawing machine after to quench treatment carries out tension leveling processing.
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| CN104878171A (en) * | 2015-05-06 | 2015-09-02 | 柳州科尔特锻造机械有限公司 | Online quenching process of online quenching system for high-strength aluminum-magnesium alloy |
| CN104878170A (en) * | 2015-05-06 | 2015-09-02 | 柳州科尔特锻造机械有限公司 | Online quenching process of online quenching system for high-strength aluminum-magnesium alloy |
| CN105441835A (en) * | 2015-11-17 | 2016-03-30 | 佛山市三水凤铝铝业有限公司 | Device and method for on-line quenching of high quenching sensitivity aluminum alloy extrusion material |
| CN105671465A (en) * | 2016-04-08 | 2016-06-15 | 中色（天津）特种材料有限公司 | On-line continuous quenching process and continuous quenching device for aluminum profile extrusion |
| CN106048160A (en) * | 2016-08-03 | 2016-10-26 | 天龙科技炉业(无锡)有限公司 | Push-plate-type salt-bath quenching automatic production line |
| CN106086339A (en) * | 2016-08-29 | 2016-11-09 | 四川齐飞铝业有限公司 | A kind of aluminium section bar uniform press quenching device |
| CN106191399A (en) * | 2016-08-29 | 2016-12-07 | 四川齐飞铝业有限公司 | Use the aluminium alloy profile on line quenching device of many types of cooling |
| CN106694593A (en) * | 2017-01-24 | 2017-05-24 | 四川阳光坚端铝业有限公司 | Molding production line for aluminum alloy profile and molding technology of aluminum alloy profile |
| CN106987695A (en) * | 2017-05-26 | 2017-07-28 | 山东新活新材料科技有限公司 | Improve the device and its application method of extruded aluminium section press quenching stability |
| CN107164709A (en) * | 2017-04-26 | 2017-09-15 | 西安工程大学 | Separating aluminium alloy and the flexible press quenching device and method of light-alloy extrudate |
| CN109468557A (en) * | 2019-01-11 | 2019-03-15 | 江苏兴甬铝业科技有限公司 | High-strength aluminum alloy press quenching system and press quenching technique |
| CN111850257A (en) * | 2019-04-29 | 2020-10-30 | 牛蓉 | Metal material processing system |
| CN114293041A (en) * | 2021-12-30 | 2022-04-08 | 四川齐飞新材料科技有限公司 | Processing technology of high-quality aluminum alloy industrial section |
| CN118204385A (en) * | 2024-05-21 | 2024-06-18 | 太仓贝斯特机械设备有限公司 | Preparation method and production system of high-strength aluminum alloy profile |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104878170A (en) * | 2015-05-06 | 2015-09-02 | 柳州科尔特锻造机械有限公司 | Online quenching process of online quenching system for high-strength aluminum-magnesium alloy |
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| CN105671465A (en) * | 2016-04-08 | 2016-06-15 | 中色（天津）特种材料有限公司 | On-line continuous quenching process and continuous quenching device for aluminum profile extrusion |
| CN106048160A (en) * | 2016-08-03 | 2016-10-26 | 天龙科技炉业(无锡)有限公司 | Push-plate-type salt-bath quenching automatic production line |
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| CN106086339A (en) * | 2016-08-29 | 2016-11-09 | 四川齐飞铝业有限公司 | A kind of aluminium section bar uniform press quenching device |
| CN106191399A (en) * | 2016-08-29 | 2016-12-07 | 四川齐飞铝业有限公司 | Use the aluminium alloy profile on line quenching device of many types of cooling |
| CN106694593A (en) * | 2017-01-24 | 2017-05-24 | 四川阳光坚端铝业有限公司 | Molding production line for aluminum alloy profile and molding technology of aluminum alloy profile |
| CN107164709B (en) * | 2017-04-26 | 2018-10-30 | 西安工程大学 | Separating aluminium alloy extrudate flexibility press quenching device and method |
| CN107164709A (en) * | 2017-04-26 | 2017-09-15 | 西安工程大学 | Separating aluminium alloy and the flexible press quenching device and method of light-alloy extrudate |
| CN106987695A (en) * | 2017-05-26 | 2017-07-28 | 山东新活新材料科技有限公司 | Improve the device and its application method of extruded aluminium section press quenching stability |
| CN109468557A (en) * | 2019-01-11 | 2019-03-15 | 江苏兴甬铝业科技有限公司 | High-strength aluminum alloy press quenching system and press quenching technique |
| CN109468557B (en) * | 2019-01-11 | 2021-07-06 | 江苏兴甬铝业科技有限公司 | High-strength aluminum alloy online quenching system and online quenching process |
| CN111850257A (en) * | 2019-04-29 | 2020-10-30 | 牛蓉 | Metal material processing system |
| CN114293041A (en) * | 2021-12-30 | 2022-04-08 | 四川齐飞新材料科技有限公司 | Processing technology of high-quality aluminum alloy industrial section |
| CN118204385A (en) * | 2024-05-21 | 2024-06-18 | 太仓贝斯特机械设备有限公司 | Preparation method and production system of high-strength aluminum alloy profile |
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