CN107245560A - A kind of aluminium alloy plate press quenching Processes and apparatus - Google Patents
A kind of aluminium alloy plate press quenching Processes and apparatus Download PDFInfo
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- CN107245560A CN107245560A CN201710459159.3A CN201710459159A CN107245560A CN 107245560 A CN107245560 A CN 107245560A CN 201710459159 A CN201710459159 A CN 201710459159A CN 107245560 A CN107245560 A CN 107245560A
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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
- C21D1/667—Quenching devices for spray quenching
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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
- C22F1/002—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
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Abstract
The invention belongs to metal working technical area, and in particular to a kind of aluminium alloy plate press quenching technique, comprise the following steps：A, rolling；B, spray prepare：Aluminium alloy plate after rolling is entered to the entrance of spraying zone by conveying device with 160~200m/min speed, and starts the conveying device of spraying zone simultaneously, the speed for controlling the conveying device of spraying zone part is 9~11m/s；C, rapidly spray：Aluminium alloy plate upper and lower surface is sprayed simultaneously, and it is 3.8 kilograms of hydraulic pressure to control the spray hydraulic pressure of upper face, and the spray hydraulic pressure of lower face is 3.5 kilograms of hydraulic pressure；D, rear cooling：Enable aluminum alloy to plate and be redirected back into spraying zone, at the same reduction above and below plate face spray hydraulic pressure, to raw material carry out after cool down.The technical process keeps sheet material waste heat without reheating, direct-on-line adjustment rolling mill practice, the quenching apparatus for rapidly entering the present invention completes quenching technical, the energy consumption for avoiding reheating from producing is wasted, and has both greatly reduced quenching cost, and the solid fusibleness energy of quenching of product has been ensured again.
Description
Technical field
The invention belongs to metal working technical area, and in particular to a kind of aluminium alloy plate press quenching Processes and apparatus.
Background technology
Heat-treatment furnace Material Field use widely, the following effect being heat-treated in Material Field is also increasingly dashed forward
It is aobvious, especially in this field of new materials of alloy aluminium sheet, not only need, closed for feature aluminium in process timing sequences such as heating, annealing
The quenching heat treatment of golden material is increasingly paid attention in the industry with user, and the quenching of traditional Aluminum Alloy Plate is nothing more than offline
Carry out trolley type salt bath, air hardening or offline roller-bottom type water quenching.
Traditional roller-bottom type quenching needs to wait for having rolled enters Gun Di stove heats area progress reheating extremely offline after sheet material cooling
500-530 degree, then rapidly enters water cooling Qiang Cui areas, reaches admittedly molten effect.
But above-mentioned quenching technical has clearly disadvantageous part, the aluminium alloy extrusions self-temperature by hot rolling is very high
(more than 440 DEG C), but this partial heat is not fully utilized, but be lost to naturally in surrounding environment, aluminium alloy extrusions quilt
Normal temperature is cooled to, and before follow-up quenching Step, in addition it is also necessary to the aluminium alloy extrusions of normal temperature is put into vertical air stove again
Heating, heating, insulation reach required hardening heat, therefore this quenching technical energy consumption is very high, and ambient temperature is high, behaviour
Make bad environments, and corollary equipment investment is big.Cause quenching cost high, be also unfavorable for the quenching solution of guarantee product
Energy.In addition, this quenching technical is batch production, aluminium alloy extrusions can not realize that on-line continuous is quenched, and the production cycle is longer,
Generally require time of 2-3 days.
The content of the invention
In order to solve weak point of the prior art, the technical solution adopted by the present invention is that there is provided a kind of conjunction of aluminium
Golden plate press quenching technique, it is characterised in that comprise the following steps：
A, rolling：Aluminium alloy plate is rolled down to technological requirement size, and the aluminium alloy plate temperature after controlled rolling is not less than
460℃；
B, spray prepare：The aluminium alloy plate after rolling is entered with 160~200m/min speed by conveying device and sprayed
Drench area entrance, and simultaneously start spraying zone conveying device, control spraying zone part conveying device speed be 9~
11m/s；
C, rapidly spray：Aluminium alloy plate after rolling enters into and through spraying zone, by quenching medium to aluminium alloy
Plate upper and lower surface is sprayed simultaneously, and it is 3.8 kilograms of hydraulic pressure to control the spray hydraulic pressure of upper face, and the spray hydraulic pressure of lower face is
3.5 kilograms of hydraulic pressure；
D, rear cooling：Behind the outlet that aluminium alloy plate passes through spraying zone, control conveying device reduction of speed and counter motion make aluminium
Alloy sheets are redirected back into spraying zone, at the same reduction above and below plate face spray hydraulic pressure, to raw material carry out after cool down.
Further, aluminum alloy plate materials are carried out during rear cooling repeating cooling, until reaching last technique
Temperature, the number of times for repeating cooling is determined according to the kind of raw material, specification.
Further, the thickness of aluminium alloy plate is 60~250mm.
Further, described quenching medium is deionized water.
Further, described deionized water passes sequentially through grit filter and the preliminary mistake of resin filter by underground water
Filter, then passes sequentially through and is made after the purification of grail filter, active carbon filter, fine filter and reverse osmosis equipment again,
It is stored in cooling pond, when quenching needs, deionized water is injected from cooling pond to online pond by high-pressure water supply pump,
Then the spray system that the deionized water in online pond supplies spraying zone is carried out to aluminium alloy plate by variable-frequency motor water pump
Spray.
Further, during press quenching, sump water temperature can constantly rise, when water temperature reaches 45 °, by being recycled back to
Water pump, the high-temperature water drainage in line upper pool to cooling tower, enters cooling pond, while from cold after being cooled by cooling tower
But new water at low temperature is injected in pond to online pond.
The present invention also correspondingly provides a kind of online roller-bottom type aluminium alloy plate quenching apparatus, the above-mentioned aluminium alloy for realizing
Plate press quenching technique, includes the deionization water supplying unit and spray unit of interconnection, in addition to roller-way gear unit,
Described deionized water water unit, including be sequentially connected deep well pump, preliminary filter, cooling pond, depth
Filter and cistern are spent, for raw water to be processed into deionized water and is stored in cistern；
The spray unit, including online pond, cooling water pipeline, nozzle supplies water pump, spray boom and the nozzle being sequentially connected,
The spray boom is divided into the upper and lower of two row and the carrying roller being separately mounted in quenching apparatus, and each row spray boom is parallel with carrying roller
Arrangement, described nozzle is vertically installed on spray boom, and spraying zone is formed between two row spray booms；
The roller-way gear unit, including the multigroup carrying roller being sequentially connected, for connecting rolling equipment outlet, after rolling
Aluminium alloy plate be sent in quenching apparatus and Cooling Quenching carried out by spraying zone.
Further, described nozzle is the flat mouth shower nozzle of taper, and the jet of described flat mouth shower nozzle is strip, often
The flat mouth shower nozzle of multiple parallel arrangements is installed, the angle between described flat mouth shower nozzle and spray boom is on individual described spray boom
15°。
It is preferred that, the flat mouth shower nozzle cross arrangement in each row on two adjacent spray booms.
It is preferred that, the spray boom and nozzle symmetry arrangement of the upper and lower of carrying roller.
Further, online roller-bottom type aluminium alloy plate quenching apparatus also includes circulating backwater unit, described circulating backwater
Unit, including water pump and cooling tower are recycled back to, the water pump that is recycled back to is used to the water pump in online pond delivering to cooling tower, described
Cooling tower passes through pipeline and cooling pond UNICOM.
Further, described preliminary filter includes the grit filter and resin filter being sequentially connected, institute
The depth-type filtration device stated includes grail filter, active carbon filter, fine filter and the reverse osmosis unit being sequentially connected.
Further, the second resin filter and high-pressure water supply pump are provided between described cistern and online pond,
Described high-pressure water supply pump is used to the deionized water in cistern being pumped to online pond after the second resin filter.
Further, online roller-bottom type aluminium alloy plate quenching apparatus also includes hydraulic pressure automatic control unit, described hydraulic pressure
Automatic control unit includes the motor-operated control valve and pressure sensor being arranged on cooling water pipeline, described motor-operated control valve bag
Include controller and the executing agency for control valve size, described controller respectively with pressure sensor, executing agency and
The controlled motor electric signal connection of nozzle supplies water pump.
Further, described nozzle supplies water pump is two, respectively by upper cooling water pipeline and lower cooling water pipeline with
The row spray boom of carrying roller upper and lower two is connected, and described motor-operated control valve and pressure sensor is two, is separately positioned on cooling
In water lines and lower cooling water pipeline.
Further, described roller-way gear unit includes four groups of carrying rollers being sequentially connected, and four groups of carrying rollers are each connected to solely
Vertical power set, the rotating speed of each group carrying roller can be controlled respectively, and two groups of carrying rollers at two ends are located at the entrance of spraying zone and gone out respectively
At mouthful, two groups of middle carrying rollers are located in spraying zone.
Technical scheme has following beneficial effect：
1st, the technical process is without reheating, and direct-on-line adjustment rolling mill practice keeps sheet material waste heat, rapidly enters this
The quenching apparatus of invention completes quenching technical, it is to avoid the energy consumption that reheating is produced is wasted, and has both greatly reduced quenching cost, again
The solid fusibleness energy of quenching of product is ensured.
2nd, aluminum alloy plate materials can realize that on-line continuous is quenched, with short production cycle, and production efficiency is high.
Brief description of the drawings
Fig. 1 is the structural representation of online roller-bottom type aluminium alloy plate quenching apparatus of the invention；
Fig. 2 is a kind of cut-away view of embodiment of spray unit in the present invention；
Fig. 3 is the installation relation schematic diagram of spray structure in the present invention；
Fig. 4 is the arrangement mode schematic diagram of the nozzle in the present invention；
Fig. 5 is a kind of structural representation of embodiment of deionization water supplying unit of the present invention；
Fig. 6 is a kind of structural representation of embodiment of anti-circulating backwater unit of the invention；
Fig. 7 is a kind of structural representation of embodiment of roller-way gear unit of the present invention；
In figure,
1st, deionization water supplying unit；101st, deep well pump；102nd, preliminary filter；1021st, grit filter； 1022、
Resin filter；103rd, cooling pond；104th, depth-type filtration device；1041st, grail filter；1042nd, resin filter；
1043rd, fine filter；1044th, reverse osmosis unit；105th, cistern；106th, the second resin filter；107th, high-pressure water supply pump；2、
Spray unit；201st, online pond；202nd, cooling water pipeline；203rd, nozzle supplies water pump；204th, spray boom；205th, nozzle；206th, change
To valve；301~304, carrying roller；305~308, power set；4th, circulating backwater unit；401st, it is recycled back to water pump；402nd, cool down
Tower；501st, motor-operated control valve；502nd, pressure sensor；6th, quenching part.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached in the embodiment of the present invention
Figure, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is the present invention
A part of embodiment, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not having
The every other embodiment obtained under the premise of creative work is made, the scope of protection of the invention is belonged to.
In the present invention, term " on ", " under ", "left", "right", "front", "rear", " top ", " bottom ", " interior ", " outer ",
" in ", " vertical ", " level ", " transverse direction ", the orientation of the instruction such as " longitudinal direction " or position relationship be based on orientation shown in the drawings or
Position relationship.These terms are not intended to limit indicated dress primarily to preferably describe the present invention and embodiment
Put, element or part there must be particular orientation, or be constructed and operated with particular orientation.
Also, above-mentioned part term is in addition to it can be used to indicate that orientation or position relationship, it is also possible to for representing it
His implication, such as term " on " also be likely used for representing certain relations of dependence or annexation in some cases.For ability
For the those of ordinary skill of domain, the concrete meaning of these terms in the present invention can be understood as the case may be.
In addition, term " installation ", " setting ", " being provided with ", " connection ", " connected " " socket " should be interpreted broadly.For example, can
To be to be fixedly connected, it is detachably connected, or monolithic construction；Can mechanically connect, or electrical connection；Can be joined directly together,
Either it is indirectly connected to by intermediary, or is connection internal between two devices, element or parts.For
For those of ordinary skill in the art, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
Unless otherwise indicated, the implication of " multiple " is two or more.
The present invention is described in further detail below by specific embodiment and with reference to accompanying drawing.Fig. 1~Fig. 6 is provided
The embodiment of the present invention.
Embodiment 1：
A kind of aluminium alloy plate press quenching technique, it is characterised in that comprise the following steps：
A, rolling：Aluminium alloy plate is rolled down to technological requirement size, and the aluminium alloy plate temperature after controlled rolling is not less than
460 DEG C, aluminum alloy plate materials thickness is 250mm；
B, spray prepare：Aluminium alloy plate after rolling is entered by spraying zone with 160m/min speed by conveying device
Entrance, and start the conveying device of spraying zone simultaneously, the speed for controlling the conveying device of spraying zone part is 9m/s；
C, rapidly spray：Aluminium alloy plate after rolling enters into and through spraying zone, by deionized water on aluminium alloy plate
Lower two sides is sprayed simultaneously, and it is 3.8 kilograms of hydraulic pressure to control the spray hydraulic pressure of upper face, and the spray hydraulic pressure of lower face is public for 3.5
Jin hydraulic pressure；
D, rear cooling：Behind the outlet that aluminium alloy plate passes through spraying zone, control conveying device reduction of speed and counter motion make aluminium
Alloy sheets are redirected back into spraying zone, at the same reduction above and below plate face spray hydraulic pressure, to raw material carry out after cool down.
After testing, the Brinell hardness HB of the aluminium alloy plate after quenching is 62, and top and bottom difference of hardness is 4 degree, and meeting national standard will
Ask.
Embodiment 2：A kind of aluminium alloy plate press quenching technique, it is characterised in that comprise the following steps：
A, rolling：Aluminium alloy plate is rolled down to technological requirement size, and the aluminium alloy plate temperature after controlled rolling is not less than
460 DEG C, aluminum alloy plate materials thickness is 60mm；
B, spray prepare：Aluminium alloy plate after rolling is entered by spraying zone with 200m/min speed by conveying device
Entrance, and start the conveying device of spraying zone simultaneously, the speed for controlling the conveying device of spraying zone part is 11m/s；
C, rapidly spray：Aluminium alloy plate after rolling enters into and through spraying zone, by deionized water on aluminium alloy plate
Lower two sides is sprayed simultaneously, and it is 3.8 kilograms of hydraulic pressure to control the spray hydraulic pressure of upper face, and the spray hydraulic pressure of lower face is public for 3.5
Jin hydraulic pressure；
D, rear cooling：Behind the outlet that aluminium alloy plate passes through spraying zone, control conveying device reduction of speed and counter motion make aluminium
Alloy sheets are redirected back into spraying zone, at the same reduction above and below plate face spray hydraulic pressure, to raw material carry out after cool down.
After testing, the Brinell hardness HB of the aluminium alloy plate after quenching is 58, and top and bottom difference of hardness is 3 degree, and meeting national standard will
Ask.
Embodiment 3：A kind of aluminium alloy plate press quenching technique, it is characterised in that comprise the following steps：
A, rolling：Aluminium alloy plate is rolled down to technological requirement size, and the aluminium alloy plate temperature after controlled rolling is not less than
460 DEG C, aluminum alloy plate materials thickness is 120mm；
B, spray prepare：Aluminium alloy plate after rolling is entered by spraying zone with 180m/min speed by conveying device
Entrance, and start the conveying device of spraying zone simultaneously, the speed for controlling the conveying device of spraying zone part is 10m/s；
C, rapidly spray：Aluminium alloy plate after rolling enters into and through spraying zone, by deionized water on aluminium alloy plate
Lower two sides is sprayed simultaneously, and it is 3.8 kilograms of hydraulic pressure to control the spray hydraulic pressure of upper face, and the spray hydraulic pressure of lower face is public for 3.5
Jin hydraulic pressure；
D, rear cooling：Behind the outlet that aluminium alloy plate passes through spraying zone, control conveying device reduction of speed and counter motion make aluminium
Alloy sheets are redirected back into spraying zone, at the same reduction above and below plate face spray hydraulic pressure, to raw material carry out after cool down.
After testing, the Brinell hardness HB of the aluminium alloy plate after quenching is 60, and top and bottom difference of hardness is 2 degree, and meeting national standard will
Ask.
Embodiment 4：A kind of aluminium alloy plate press quenching technique, it is characterised in that comprise the following steps：
A, rolling：Aluminium alloy plate is rolled down to technological requirement size, and the aluminium alloy plate temperature after controlled rolling is not less than
460 DEG C, aluminum alloy plate materials thickness is 120mm；
B, spray prepare：Aluminium alloy plate after rolling is entered by spraying zone with 180m/min speed by conveying device
Entrance, and start the conveying device of spraying zone simultaneously, the speed for controlling the conveying device of spraying zone part is 10m/s；
C, rapidly spray：Aluminium alloy plate after rolling enters into and through spraying zone, by deionized water on aluminium alloy plate
Lower two sides is sprayed simultaneously, and it is 3.8 kilograms of hydraulic pressure to control the spray hydraulic pressure of upper face, and the spray hydraulic pressure of lower face is public for 3.5
Jin hydraulic pressure；
D, rear cooling：Behind the outlet that aluminium alloy plate passes through spraying zone, control conveying device reduction of speed and counter motion make aluminium
Alloy sheets are redirected back into spraying zone, at the same reduction above and below plate face spray hydraulic pressure, to raw material carry out after cool down.
E, raw water deionization：Described deionized water is as at the beginning of underground water passes sequentially through grit filter and resin filter
Step filtering, then passes sequentially through and is made after the purification of grail filter, active carbon filter, fine filter and reverse osmosis equipment again
, it is stored in cooling pond, when quenching needs, deionization is injected from cooling pond to online pond by high-pressure water supply pump
Water, is then entered the spray system that the deionized water in online pond supplies spraying zone to aluminium alloy plate by variable-frequency motor water pump
Row spray.
After testing, the Brinell hardness HB of the aluminium alloy plate after quenching is 61, and top and bottom difference of hardness is 2 degree, and meeting national standard will
Ask.
Embodiment 5：A kind of aluminium alloy plate press quenching technique, it is characterised in that comprise the following steps：
A, rolling：Aluminium alloy plate is rolled down to technological requirement size, and the aluminium alloy plate temperature after controlled rolling is not less than
460 DEG C, aluminum alloy plate materials thickness is 120mm；
B, spray prepare：Aluminium alloy plate after rolling is entered by spraying zone with 180m/min speed by conveying device
Entrance, and start the conveying device of spraying zone simultaneously, the speed for controlling the conveying device of spraying zone part is 10m/s；
C, rapidly spray：Aluminium alloy plate after rolling enters into and through spraying zone, by deionized water on aluminium alloy plate
Lower two sides is sprayed simultaneously, and it is 3.8 kilograms of hydraulic pressure to control the spray hydraulic pressure of upper face, and the spray hydraulic pressure of lower face is public for 3.5
Jin hydraulic pressure；
D, rear cooling：Behind the outlet that aluminium alloy plate passes through spraying zone, control conveying device reduction of speed and counter motion make aluminium
Alloy sheets are redirected back into spraying zone, at the same reduction above and below plate face spray hydraulic pressure, to raw material carry out after cool down.
E, circulating backwater：During press quenching, sump water temperature can constantly rise, when water temperature reaches 45 °, pass through circulation
Back water pump, the high-temperature water drainage in line upper pool to cooling tower, enters cooling pond after being cooled by cooling tower, while from
Cooling pond injects new water at low temperature to online pond.
After testing, the Brinell hardness HB of the aluminium alloy plate after quenching is 59, and top and bottom difference of hardness is 2 degree, and meeting national standard will
Ask.
Experimental example 1：
70mm*1500mm*6050mm 6061 alloy aluminium sheets are carried out to the quenching of aluminium alloy plate according to the technique of the present invention,
Aluminium sheet is rolled down to technological requirement size (keeping metal temperature to be not less than 460 degree), and 180m/min enters quenching area entrance, and disconnection is rolled
Line coordinated signals, are opened through PAD control systems and spray, and upper pressure 3.5KG is pushed 3.2KG, quenched with 10m/s speed into spray
Fire, area's metal temperature of coming out of the stove is maintained at 70-100 DEG C, HB=58-62.
Aluminium alloy plate after above-mentioned quenching was completed into leveling in 2 hours and part stress is eliminated, and after aging technique
Finished product is delivered goods after sawing, HB=100-110.
After cost accounting, the cost structure of experimental example 1 is 35 yuans, and being scaled a ton cost is： 35.00/
1.715=20.41 yuan/ton.
Reference examples 1：Conventional quenching technique is used for 70mm*1500mm*6050mm 6061 alloy aluminium sheets：Aluminium sheet is advanced
The hot stove in Gun Di stove heats area was warming up to 530 degree with 90 minutes, and was incubated 120 minutes guarantee aluminum sheet metal temperature at 460-500 DEG C,
Quick 8-12m/s comes out of the stove, through 40 DEG C or so of 4000mm Qiang Cui the areas quenching of deionized water spray (upper hydraulic pressure 3.0KG, lower hydraulic pressure
2.8KG), then the Ruo Cui areas cooling through 1KG pressure is come out of the stove, HB=56-58, in 2 hours through 11 roll leveller levelings simultaneously
Finished product is delivered goods after 10H timeliness, HB=97-105
Cost structure：The cost of heating and thermal insulation is 2450.00 yuans, and deionized water quenching expense cost is 24.50
Yuan, it is 1443.45 yuan/ton to adjust ton cost.
, can be real by the aluminium alloy plate press quenching technique of the present invention knowable to contrast by experimental example 1 and reference examples 1
Existing 2124.50 yuans of cost efficiency, 1238.78 yuan/ton of ton cost savings.
Embodiment 6：
As shown in figure 1, a kind of online roller-bottom type aluminium alloy plate quenching apparatus, includes the deionization water supplying unit of interconnection
1 and spray unit 3, in addition to roller-way gear unit 3,
Described deionized water water unit, including deep well pump 101, preliminary filter 102, the cooling water being sequentially connected
Pond 103, depth-type filtration device 104 and cistern 105, for raw water to be processed into deionized water and cistern 105 is stored in
It is interior；
The spray unit 2, including be sequentially connected online pond 201, cooling water pipeline 202, nozzle supplies water pump 203,
Spray boom 204 and nozzle 205,204 points of the spray boom are the upper and lower of two row and the carrying roller being separately mounted in quenching apparatus, often
One row spray boom 204 is arranged in parallel with carrying roller, and described nozzle 205 is vertically installed on spray boom 204, between two row spray booms 204
Form spraying zone；
The roller-way gear unit 3 (see Fig. 7), including the multigroup carrying roller being sequentially connected, for connecting rolling equipment outlet,
Aluminium alloy plate after rolling is sent in quenching apparatus and Cooling Quenching is carried out by spraying zone.
As shown in Figures 2 and 3, spray unit 2 of the invention includes cooling water pipeline 202, nozzle supplies water pump 203, spray boom 204
With nozzle 205,204 points of the spray boom is the upper and lower of two row and the carrying roller being separately mounted in quenching apparatus, that is to say, that spray
Bar 204 is arranged in above and below the pipeline of quenching part 6, and the selection of quenching part 6 is aluminium alloy plate, Mei Yilie in the present embodiment
Spray boom 204 is arranged in parallel with carrying roller, and described nozzle 205 is vertically installed on spray boom 204, and described nozzle 205 is taper
Flat mouth shower nozzle, the jet of described flat mouth shower nozzle is strip, and wherein cooling water pipeline 202 is included from online pond 201
The house steward that outwards exports and the respectively branch pipe with each spray boom UNICOM.
As shown in figure 4, on the basis of above-mentioned embodiment, multiple parallels are provided with each described spray boom 204
Cloth flat mouth shower nozzle, the angle between described flat mouth shower nozzle and spray boom 204 is 10 °~30 °, can be selected in practical operation
15 ° of conducts preferably angle.
In above-mentioned spray unit, its working method is that hardening media cooling water is passed through cooling by nozzle supplies water pump 203
The house steward of water lines 202 and branch pipe are delivered to spray boom 204 from online pond 201, are then sprayed by nozzle 205, pass through regulation
The running parameter of nozzle supplies water pump 205 can realize the hydraulic pressure for the cooling water that nozzle 205 sprays, and nozzle 205 is the flat mouth of taper
Shower nozzle so that the current of ejection are the covering of the fan shape of radiation, often arrange nozzle 205 and adjust certain angle when mounted, prevent phase
Adjacent nozzle sector in injection mutually impacts, and prevents from reducing impulsive force of the sector to plate face, reduces cooling-down effect, work as angle
It is set as that quenching effect is optimal at 15 °.
As described in Figure 4, the flat mouth shower nozzle cross arrangement on two spray booms 204 adjacent in each row.Can effectively it control
The uniformity of aluminium alloy plate face cooling so that the hardness homogenization of the aluminium alloy plate face after spray quenching.Each spray boom
The quantity set of nozzle 205 on 204 is 15~30, when the quantity set of nozzle 205 of adjacent spray boom 204 is 20 and 21
When being alternately arranged, preferably quenching effect can be reached.
As shown in Figures 2 and 3, on the basis of above-described embodiment, 205 pairs of the spray boom 204 and nozzle of the upper and lower of carrying roller
Claim arrangement, so that the current sector that row's nozzle spray 205 is projected up and down is symmetrical, it is ensured that to the cooling efficiency phase of plate face up and down
Together.The quantity of spray boom 204 described in each column is 4~8.
As shown in Fig. 2 described nozzle supplies water pump 203 is two, it is upper and lower by cooling water pipeline 202 and carrying roller respectively
Two row spray booms 204 of side are connected, and the spray water pressure on upper and lower panel can be controlled respectively, the spray of the shower nozzle above carrying roller
Jetting pressure is 3.5kg, and the injection hydraulic pressure positioned at the shower nozzle of the lower section of carrying roller 5 is 3.2kg, so as to realize preferably quenching effect.
As shown in fig. 6, online roller-bottom type aluminium alloy plate quenching apparatus also includes circulating backwater unit 4, described is recycled back to
Water unit 4 includes being recycled back to water pump 401 and cooling tower 402, and the water pump 401 that is recycled back to is used for the water pump in online pond 201
Cooling tower 402 is delivered to, the cooling tower 402 passes through pipeline and the UNICOM of cooling pond 103.
In order to prevent in quenching process, because the online water temperature of pond 201 can constantly rise, quenching effect can decline,
Line pond 201, which is connected with, is recycled back to water pump 401, delivery outlet and the UNICOM of cooling tower 402 of water pump 401 is recycled back to, when online pond
When 201 water temperature is higher, can by ON cycle back water pump 401 the high-temperature water drainage in online pond 201 to cooling tower
402, cooled by cooling tower 402, meanwhile, the new water at low temperature of the online supplement of pond 201 injection, to meet production technology
Demand.
As shown in figure 5, described preliminary filter 102 includes grit filter 1021 and the resin mistake being sequentially connected
Filter 1022, grail filter 1041 that described depth-type filtration device includes being sequentially connected, active carbon filter 1042,
Fine filter 1043 and reverse osmosis unit 1044.
As shown in figure 5, be provided between described cistern 105 and online pond 201 second resin filter 106 and
High-pressure water supply pump 107, described high-pressure water supply pump 107 is used to the deionized water in cistern 105 passing through the second resin filter
Online pond 201 is pumped to after device 106.
As shown in Fig. 2 online roller-bottom type aluminium alloy plate quenching apparatus also includes hydraulic pressure automatic control unit, described hydraulic pressure
Automatic control unit includes the motor-operated control valve 501 and pressure sensor 502 being arranged on cooling water pipeline 202, described electricity
Dynamic control valve 501 includes controller and the executing agency for control valve size, described controller respectively with pressure sensing
The controlled motor electric signal connection of device 502, executing agency and nozzle supplies water pump 203.
More specifically, described nozzle supplies water pump 203 is two, passes through upper cooling water pipeline and lower cooling water pipe respectively
Road is connected with the row spray boom 204 of carrying roller upper and lower two, and described motor-operated control valve 501 and pressure sensor 502 is two, point
It is not arranged on cooling water pipeline and lower cooling water pipeline.
In order to realize automatically controlling and adjusting for two-way pressure, described motor-operated control valve 501 includes controller and is used for
The executing agency of control valve size, described controller respectively with pressure sensor 502, executing agency and nozzle supplies water pump
203 controlled motor electric signal connection, it is possible to achieve spray automatically controlling and adjusting for water pressure.According to manufacturing technique requirent,
The pressure of needs is inputted on the controller of motor-operated control valve 501, the pressure sensor above spray piping up and down is detected
The actual pressure of pipeline, the pressure feedback detected to controller, controller is opened according to the contrast of setting pressure and actual pressure
The adjustment that executing agency carries out the size of valve is opened, while adjusting the rotating speed of the controlled motor of nozzle supplies water pump 203, is so formed
One complete pressure closed loop control, it is ensured that the pressure in spray piping reaches technological requirement.
As shown in Figure 1, it is provided with commutation between two cooling water pipelines of the spray boom UNICOM of carrying roller upper and lower respectively
Valve 206, described reversal valve 206 is Hand-operated butterfly valve.
As shown in fig. 7, described roller-way gear unit includes four groups of carrying rollers 301~304 being sequentially connected, four groups of carrying rollers
301~304 are each connected to independent power set 305~308, and the rotating speed of each group carrying roller 301~304, two ends can be controlled respectively
Two groups of carrying rollers 301 and 304 respectively at the entrance and exit of spraying zone, middle two groups of carrying rollers 302 and 303 are located at spray
Drench in area.
When supplied materials reach No. 301 carrying rollers when, start spray unit, into spray the preparatory stage, while linkage 302,303,
No. 304 carrying rollers, into the state of running at high speed, speed control enters spraying zone in 80mm/s, conveying supplied materials；Pass through cooling in raw material
When entering No. 304 carrying rollers afterwards, carrying roller speed is reduced, spraying zone is redirected back into, cooling down operation after can carrying out.
Some one exemplary embodiments of the present invention are only described by way of explanation above, undoubtedly, for ability
The those of ordinary skill in domain, without departing from the spirit and scope of the present invention, can be with a variety of modes to institute
The embodiment of description is modified.Therefore, above-mentioned accompanying drawing and description are inherently illustrative, should not be construed as to the present invention
The limitation of claims.
Claims (11)
1. a kind of aluminium alloy plate press quenching technique, it is characterised in that comprise the following steps：
A, rolling：Aluminium alloy plate is rolled down to technological requirement size, and the aluminium alloy plate temperature after controlled rolling is not less than 460
℃；
B, spray prepare：Aluminium alloy plate after rolling is entered by spraying zone with 160~200m/min speed by conveying device
Entrance, and simultaneously start spraying zone conveying device, control spraying zone part conveying device speed be 9~11m/s；
C, rapidly spray：Aluminium alloy plate after rolling enters into and through spraying zone, by quenching medium on aluminium alloy plate
Lower two sides is sprayed simultaneously, and it is 3.8 kilograms of hydraulic pressure to control the spray hydraulic pressure of upper face, and the spray hydraulic pressure of lower face is public for 3.5
Jin hydraulic pressure；
D, rear cooling：Behind the outlet that aluminium alloy plate passes through spraying zone, control conveying device reduction of speed and counter motion are enabled aluminum alloy to
Plate is redirected back into spraying zone, at the same reduction above and below plate face spray hydraulic pressure, to raw material carry out after cool down.
2. aluminium alloy plate press quenching technique according to claim 1, it is characterised in that to aluminium during rear cooling
Sheet alloy carries out repeating cooling, until reaching last technological temperature, repeats kind, specification of the number of times of cooling according to raw material
It is determined that.
3. aluminium alloy plate press quenching technique according to claim 1, it is characterised in that the thickness of aluminium alloy plate is 60~
250mm。
4. aluminium alloy plate press quenching technique according to claim 1, it is characterised in that described quenching medium is
Deionized water.
5. aluminium alloy plate press quenching technique according to claim 4, it is characterised in that described deionized water is by underground
Water passes sequentially through grit filter and resin filter is tentatively filtered, and grail filter, activated carbon are then passed sequentially through again
It is made after the purification of filter, fine filter and reverse osmosis equipment, is stored in cooling pond, when quenching needs, passes through height
Pressure supply-water pump injects deionized water from cooling pond to online pond, then by variable-frequency motor water pump by going in online pond
The spray system of ionized water supply spraying zone is sprayed to aluminium alloy plate.
6. aluminium alloy plate press quenching technique according to claim 5, it is characterised in that during press quenching, pond
Water temperature can constantly rise, when water temperature reaches 45 °, by being recycled back to water pump, the high-temperature water drainage in line upper pool to cooling tower,
Enter cooling pond after being cooled by cooling tower, while injecting new water at low temperature from cooling pond to online pond.
7. a kind of online roller-bottom type aluminium alloy plate quenching for being used to realize any one of claim 1~6 quenching technical is set
It is standby, it is characterised in that deionization water supplying unit (1) and spray unit (2) including interconnection, in addition to roller-way transmission are single
First (3),
Described deionized water water unit, including deep well pump (101), preliminary filter (102), the cooling water being sequentially connected
Pond (103), depth-type filtration device (104) and cistern (105), for raw water to be processed into deionized water and retaining is stored in
In pond；
The spray unit, including be sequentially connected online pond (201), cooling water pipeline (202), nozzle supplies water pump (203),
Spray boom (204) and nozzle (205), the spray boom are divided into the upper and lower of two row and the carrying roller being separately mounted in quenching apparatus, often
One row spray boom is arranged in parallel with carrying roller, and described nozzle is vertically installed on spray boom, and spraying zone is formed between two row spray booms；
The roller-way gear unit, including the multigroup carrying roller being sequentially connected, for connecting rolling equipment outlet, by the aluminium after rolling
Alloy sheets are sent in quenching apparatus and carry out Cooling Quenching by spraying zone.
8. online roller-bottom type aluminium alloy plate quenching apparatus according to claim 7, it is characterised in that described nozzle is cone
The flat mouth shower nozzle of shape, the jet of described flat mouth shower nozzle is strip, and multiple parallels are provided with each described spray boom
The flat mouth shower nozzle of cloth, the angle between described flat mouth shower nozzle and spray boom is 15 °.
9. online roller-bottom type aluminium alloy plate quenching apparatus according to claim 8, it is characterised in that adjacent in each row
Flat mouth shower nozzle cross arrangement on two spray booms；The spray boom and nozzle symmetry arrangement of the upper and lower of carrying roller.
10. online roller-bottom type aluminium alloy plate quenching apparatus according to claim 7, it is characterised in that also including being recycled back to
Water unit (4), described circulating backwater unit includes being recycled back to water pump (401) and cooling tower (402), described to be recycled back to water pump use
In the water pump in online pond is delivered into cooling tower, the cooling tower passes through pipeline and cooling pond UNICOM.
11. online roller-bottom type aluminium alloy plate quenching apparatus according to claim 7, it is characterised in that described preliminary mistake
Filter device includes the grit filter (1021) and resin filter (1022) being sequentially connected, described depth-type filtration device bag
Include the grail filter (1041) being sequentially connected, active carbon filter (1042), fine filter (1043) and reverse osmosis unit
(1044)。
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| CN117566938A (en) * | 2023-11-13 | 2024-02-20 | 山东波鸿轨道交通装备科技有限公司 | A voltage regulator device that is used for many quenching stations of high-speed railway wheel to supply water |
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Application publication date: 20171013 |