CN107262546A - A kind of aluminium alloy round cast ingot cartridge heater and heating means - Google Patents
A kind of aluminium alloy round cast ingot cartridge heater and heating means Download PDFInfo
- Publication number
- CN107262546A CN107262546A CN201710666064.9A CN201710666064A CN107262546A CN 107262546 A CN107262546 A CN 107262546A CN 201710666064 A CN201710666064 A CN 201710666064A CN 107262546 A CN107262546 A CN 107262546A
- Authority
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- China
- Prior art keywords
- heating
- aluminium alloy
- temperature
- cast ingot
- alloy round
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 101
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 71
- 238000001125 extrusion Methods 0.000 claims abstract description 16
- 230000003247 decreasing effect Effects 0.000 claims abstract description 4
- 239000000919 ceramic Substances 0.000 claims description 6
- 239000004744 fabric Substances 0.000 claims description 6
- 239000003365 glass fiber Substances 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 230000001174 ascending effect Effects 0.000 claims 1
- 238000009413 insulation Methods 0.000 claims 1
- 230000011218 segmentation Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000005266 casting Methods 0.000 description 21
- 238000000034 method Methods 0.000 description 14
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 7
- 229910052782 aluminium Inorganic materials 0.000 description 7
- 239000004411 aluminium Substances 0.000 description 6
- 239000000956 alloy Substances 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 235000012438 extruded product Nutrition 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C29/00—Cooling or heating work or parts of the extrusion press; Gas treatment of work
- B21C29/003—Cooling or heating of work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C31/00—Control devices, e.g. for regulating the pressing speed or temperature of metal; Measuring devices, e.g. for temperature of metal, combined with or specially adapted for use in connection with extrusion presses
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Of Metal (AREA)
Abstract
The invention discloses a kind of aluminium alloy round cast ingot cartridge heater and heating means, the aluminium alloy round cast ingot cartridge heater includes heating cylinder, heating coil is provided with the heating cylinder, the heating coil includes at least two sub- heating coils being independently arranged, the sub- heating coil is respectively connected with independent controller, the controller controls the power of corresponding sub- heating coil, along the length direction of aluminium alloy round cast ingot, the heating-up temperature of each sub- heating coil is successively decreased or is incremented by successively, several temperature measurers are arranged at intervals with the heating cylinder along its length, the temperature measurer is electrically connected with the controller.Above-mentioned aluminium alloy round cast ingot cartridge heater and heating means are by the way of aluminium alloy round cast ingot cartridge heater fraction gradient is heated, it is to avoid product quality improves product quality because of the high burning of temperature；Due to extruding production using isothermal constant speed, extrusion speed can improve more than 5%, and yield is also further improved, so as to improve economic benefit.
Description
Technical field
The invention belongs to aluminium alloy round cast ingot heating technique, more particularly, to a kind of aluminium alloy round cast ingot cartridge heater and heating
Method.
Background technology
Aluminium alloy density is low, but intensity is higher, near or above high-quality steel, and plasticity is good, can be processed into various section bars, tool
There are excellent electric conductivity, thermal conductivity and corrosion stability, industrially widely use, usage amount is only second to steel.Aluminium alloy round cast ingot is to use
Aluminum oxide-ice crystal is produced by electrolysis.Aluminium ingot has two major classes after entering commercial Application：Cast aluminium alloy gold and change
Shape aluminium alloy.Casting aluminium and aluminium alloy are the casting that aluminium is produced with casting method；It is with pressure processing side to deform aluminium and aluminium alloy
Method produces the converted products of aluminium：Plate, band, paper tinsel, tube, rod section, line and forging.
Current home and abroad aluminium alloy manufacturer is using isobaric extrusion process production aluminum alloy materials；Extruder is extruded
During one be to enable aluminum alloy to justify ingot casting and produce change in shape turn into the power needed for product, another be aluminium alloy round cast ingot with
Frictional force between extruder ingot-containing tube, it is that isobaric extruding is an above deformation why to think whole aluminium alloy extruded process
Required power is constant, and the continuous decrease reason of extruding force is frictional force because of aluminium alloy during an alloy circle ingot casting extruder
The continuous extruded product of circle ingot casting, which shortens to reduce with frictional force between extruder ingot-containing tube, to be caused；By deformation institute in extrusion process
The power needed can produce temperature lifting with frictional force, and the temperature of frictional force generation enables aluminum alloy to justify ingot casting temperature rise, deformation generation
Temperature raise product and mold temperature, the product speed highest that aluminium alloy round cast ingot is backmost squeezed into；Product temperature is high
Go out certain limit and occur that burn-off phenomenon influences quality, currently generally overcome product temperature to raise using reduction extrusion speed,
But this method but the extruding efficiency that have impact on product.
The content of the invention
It is an object of the invention to propose a kind of aluminium alloy round cast ingot cartridge heater, the aluminium alloy round cast ingot through its heating can
In the extrusion process of constant speed, it is ensured that the extruding quality of product, to solve to deposit in the isobaric extrusion process of aluminium alloy in the prior art
Above mentioned problem.
Another object of the present invention is to propose a kind of heating means of aluminium alloy round cast ingot, it uses stepped heating
Method, it is ensured that the extruding quality of product back segment, to solve above mentioned problem present in aluminium alloy extruded process in the prior art.
For up to above-mentioned purpose, the present invention uses following technical scheme：
A kind of aluminium alloy round cast ingot cartridge heater, it includes heating cylinder, wherein, it is provided with heater wire on the heating cylinder
Circle, the heating coil includes at least two sub- heating coils being independently arranged, and the sub- heating coil is respectively connected with independent
Controller, the controller controls the power of corresponding sub- heating coil, and along the length direction of aluminium alloy round cast ingot, each height adds
The heating-up temperature of heat coil is successively decreased or is incremented by successively.
Especially, be arranged at intervals with several temperature measurers on the heating cylinder along its length, the temperature measurer with
The controller electrical connection, and the temperature measurer is connected to the piston rod end of lift cylinder, the lift cylinder is arranged at institute
State on heating cylinder, and lift cylinder driving temperature measurer is moved up and down in heating cylinder.
Especially, the heating coil includes three sub- heating coils for being independently arranged, the respectively first sub- heating coil,
One temperature measurer is set in the second sub- heating coil and the 3rd sub- heating coil, the heating region of every sub- heating coil, it is described
The heating-up temperature of first sub- heating coil be less than the described second sub- heating coil heating-up temperature, second heating coil plus
Hot temperature is less than the heating-up temperature of the 3rd sub- heating coil.
Especially, the heating cylinder is in being provided with the ceramic cloth of glass fibre, the glass fibre in the heating coil
Stainless steel inner container is provided with ceramic cloth, the stainless steel inner container surrounds the cavity for housing aluminium alloy round cast ingot.
Especially, the two ends of the heating cylinder are mounted on the offset plate that insulate.
A kind of heating means of aluminium alloy round cast ingot, it comprises the following steps：
1) preheat：Aluminium alloy round cast ingot is preheated to 400 DEG C~440 DEG C；
2) gradient-heated：Ladder is carried out to the aluminium alloy round cast ingot after preheating using above-mentioned aluminium alloy round cast ingot cartridge heater
Heat stepwise, is specifically divided into three sections, along its direction of extrusion, positioned at most leading portion heating-up temperature for 475 DEG C~485 DEG C, interlude
Heating-up temperature be 460 DEG C~470 DEG C, the heating-up temperature of most back segment is 445 DEG C~455 DEG C.
Especially, the step 1) in using by the long rod of aluminium alloy by gas-fired heater carry out cardinal temperature heating,
It is even to be heated to the aluminium alloy round cast ingot that 420 DEG C of sawings of coming out of the stove are formed after preheating.
Especially, the step 2) in be located at the heating-up temperature of most leading portion be 480 DEG C, the heating-up temperature of interlude is 465
DEG C, the heating-up temperature of most back segment is 450 DEG C.
What the present invention reached is had the beneficial effect that, the aluminium alloy round cast ingot cartridge heater and heating means are used aluminum alloy round
The mode of ingot casting cartridge heater fraction gradient heating, it is to avoid product quality improves product quality because of the high burning of temperature；Due to using
Isothermal constant speed extruding production, extrusion speed can improve more than 5%, and yield is also further improved, so as to improve economic benefit.
Brief description of the drawings
Fig. 1 is the structural representation for the aluminium alloy round cast ingot cartridge heater that the specific embodiment of the invention 1 is provided；
Fig. 2 is the side view for the aluminium alloy round cast ingot cartridge heater that the specific embodiment of the invention 1 is provided.
Embodiment
Further illustrate technical scheme below in conjunction with the accompanying drawings and by embodiment.
Refer to shown in Fig. 1 and Fig. 2, present embodiments providing a kind of aluminium alloy round cast ingot cartridge heater includes heating cylinder 1,
Heating coil is provided with the heating cylinder 1, the heating coil includes three sub- heating coils being independently arranged, is respectively
First sub- heating coil 2, the second sub- heating coil 4 of sub- heating coil 3 and the 3rd, first sub- of heating coil 2, second add
The sub- heating coil 4 of heat coil 3 and the 3rd is respectively connected with independent controller, and the controller controls corresponding sub- heating coil
Power, with the temperature for the heating region for controlling the sub- heating coil, along the length direction of aluminium alloy round cast ingot, each sub- heater wire
The heating-up temperature of circle is successively decreased or is incremented by successively.
The heating cylinder 1 is in being provided with the ceramic cloth 5 of glass fibre, the ceramic cloth of the glass fibre in the heating coil
Stainless steel inner container 6 is provided with 5, the stainless steel inner container 6 surrounds the cavity 8 for housing aluminium alloy round cast ingot 7, the heating
The two ends of cylinder 1 are mounted on the offset plate 9 that insulate.
Several temperature measurers 10, the temperature measurer 10 and institute are arranged at intervals with the heating cylinder 1 along its length
Controller electrical connection is stated, and the temperature measurer 10 is connected to the piston rod end of lift cylinder 11, the lift cylinder 11 is set
In on the heating cylinder 1, during measurement, the driving of lift cylinder 11 temperature measurer 10 clings to the surface of aluminium alloy round cast ingot 7
Carry out temperature survey.
The heating means of above-mentioned aluminium alloy round cast ingot cartridge heater, it comprises the following steps：
1) preheat：Aluminium alloy round cast ingot first carries out cardinal temperature heating using the long rod gas-fired heater of many ingot castings, uniformly
420 DEG C of sawings of coming out of the stove are heated to, the short ingot casting, which enters, after sawing carries step rail road special cart, and ingot casting is delivered into power frequency sense by dolly
Heating furnace is answered, then is sent into ingot casting in aluminium alloy round cast ingot cartridge heater by specific purpose tool；
2) gradient-heated：Heating coil 1 is made up of three independent sub- heating coils, and has three temperature controller controls, can
The short ingot casting is heated into three sections of different temperature；During according to isobaric technique extruding aluminium alloy material, put down under equal extrusion speed
Face mould tool circle ingot casting is squeezed into product, and its temperature raises 40 DEG C, and assembling die circle ingot casting is squeezed into product, its temperature rise 60
DEG C, that is, it is 480 DEG C to justify ingot casting temperature, and product maximum temperature is up to 505~540 DEG C, now extrusion speed 0.3 circle after squeezing
Ingot casting will be decrescence slow；Now heating-up temperature is set to be 480 DEG C circle ingot casting (assembling die production) the most leading portion, stage casing sets heating
Temperature be 465 DEG C, most back segment set heating-up temperature be 450 DEG C, using aluminum alloy heat conductibility it is good the characteristics of, from the gradient-heated
Good ingot casting goes out coil and starts to extrude to extruder, and the temperature at gradient is close to each other, makes three original gradients close to one
Straight oblique line, extrusion speed when being extruded using equipressure carries out constant speed extruding, and the temperature control of product is at 505~530 DEG C.For
Ensure the process implementing, the product temperature after an accurate infrared thermometer monitoring deformation, one are installed at extruder outlet
It is to examine whether consistent with theoretical temperatures, two be adjustment extrusion speed, extrusion speed is obtained most after being combined with aluminium ingot casting temperature
Good product quality, most fast extrusion speed.
During extruding, under pressure ram effect, itself starts mushrooming deformation, is drastically rubbed with recipient liner in advance,
Heat is produced, enables aluminum alloy to justify ingot casting temperature rise；Aluminium alloy round cast ingot meets mould, under high pressure effect, produces deformation, promotes
Product temperature rise after deformation, it is too high to cause product burning, Quality Down or scrap.Such as set using aluminium alloy round cast ingot temperature
Put again lower, when can cause aluminium alloy round cast ingot starting extruding, the product after deformation must can not be raised to minimum by the heat of generation
Solid melting temperatur, then extruded product is substandard product.So by the way of gradient is heated, when can just extrude, lifting
When temperature is smaller, aluminium alloy round cast ingot heating herein is higher, can reach solid melting temperatur, when posterior segment lifting temperature is larger,
Aluminium alloy round cast ingot heating is relatively low, and the two is combined can reach solid melting temperatur again.Extrusion speed need not be turned down to heat up to reduce
It hurry up.
Above content is only presently preferred embodiments of the present invention, for one of ordinary skill in the art, according to the present invention's
Thought, will change in specific embodiments and applications, and this specification content should not be construed as to the present invention
Limitation.
Claims (8)
1. a kind of aluminium alloy round cast ingot cartridge heater, it includes heating cylinder, it is characterised in that：It is provided with and adds on the heating cylinder
Heat coil, the heating coil includes at least two sub- heating coils being independently arranged, and the sub- heating coil is respectively connected with solely
Vertical controller, the controller controls the power of corresponding sub- heating coil, along the length direction of aluminium alloy round cast ingot, each
The heating-up temperature of sub- heating coil is successively decreased or is incremented by successively.
2. aluminium alloy round cast ingot cartridge heater according to claim 1, it is characterised in that：On the heating cylinder along its length
Direction is arranged at intervals with several temperature measurers, and the temperature measurer is electrically connected with the controller, and the temperature measurer is connected to liter
The piston rod end of sending down abnormally ascending cylinder, the lift cylinder is arranged on the heating cylinder, and lift cylinder driving temperature measurer
Moved up and down in heating cylinder.
3. aluminium alloy round cast ingot cartridge heater according to claim 2, it is characterised in that：The heating coil includes three solely
Erect the sub- heating coil put, the respectively first sub- heating coil, the second sub- heating coil and the 3rd sub- heating coil, per height
One temperature measurer is set in the heating region of heating coil, and the heating-up temperature of the first sub- heating coil is less than the described second son
The heating-up temperature of heating coil, the heating-up temperature of second heating coil is less than the heating temperature of the 3rd sub- heating coil
Degree.
4. aluminium alloy round cast ingot cartridge heater according to claim 1, it is characterised in that：The heating cylinder is in the heating
It is provided with the ceramic cloth of glass fibre, the ceramic cloth of the glass fibre and is provided with stainless steel inner container, the stainless steel in coil
Courage surrounds the cavity for housing aluminium alloy round cast ingot.
5. aluminium alloy round cast ingot cartridge heater according to claim 1, it is characterised in that：Pacify at the two ends of the heating cylinder
Equipped with insulation offset plate.
6. a kind of heating means of aluminium alloy round cast ingot, it is characterised in that：It comprises the following steps：
1) preheat：Aluminium alloy round cast ingot is preheated to 400 DEG C~440 DEG C；
2) gradient-heated：Ladder segmentation is carried out to the aluminium alloy round cast ingot after preheating using above-mentioned aluminium alloy round cast ingot cartridge heater
Heating, is specifically divided into three sections, along its direction of extrusion, is 475 DEG C~485 DEG C positioned at the heating-up temperature of most leading portion, interlude plus
Hot temperature is 460 DEG C~470 DEG C, and the heating-up temperature of most back segment is 445 DEG C~455 DEG C.
7. the heating means of aluminium alloy round cast ingot according to claim 6, it is characterised in that：The step 1) middle use general
The long rod of aluminium alloy carries out cardinal temperature heating by gas-fired heater, is heated uniformly to 420 DEG C of sawings of coming out of the stove and is formed after preheating
Aluminium alloy round cast ingot.
8. the heating means of aluminium alloy round cast ingot according to claim 6, it is characterised in that：The step 2) in be located at most
The heating-up temperature of leading portion is 480 DEG C, and the heating-up temperature of interlude is 465 DEG C, and the heating-up temperature of most back segment is 450 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710666064.9A CN107262546A (en) | 2017-08-07 | 2017-08-07 | A kind of aluminium alloy round cast ingot cartridge heater and heating means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710666064.9A CN107262546A (en) | 2017-08-07 | 2017-08-07 | A kind of aluminium alloy round cast ingot cartridge heater and heating means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107262546A true CN107262546A (en) | 2017-10-20 |
Family
ID=60080016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710666064.9A Pending CN107262546A (en) | 2017-08-07 | 2017-08-07 | A kind of aluminium alloy round cast ingot cartridge heater and heating means |
Country Status (1)
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| CN (1) | CN107262546A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108426452A (en) * | 2018-03-26 | 2018-08-21 | 苏州富博宏新材料科技有限公司 | A kind of processing technology that can quickly heat aluminium alloy |
| CN108803729A (en) * | 2018-05-22 | 2018-11-13 | 张家港市东航电热电器厂 | A kind of intelligent gradient electric heater unit and its temperature control system for aluminium extruded pressure cylinder |
| CN109746278A (en) * | 2019-01-02 | 2019-05-14 | 江苏兴甬铝业科技有限公司 | A kind of aluminum profile Isothermal Extrusion system and its pressing method |
| CN110976543A (en) * | 2019-12-16 | 2020-04-10 | 广东和胜工业铝材股份有限公司 | Sectional-speed extrusion process of aluminum alloy |
| CN113976652A (en) * | 2021-09-27 | 2022-01-28 | 营口忠旺铝业有限公司 | Extrusion production process of wide radiator |
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| CN101817030A (en) * | 2009-11-23 | 2010-09-01 | 中色科技股份有限公司 | Technical configuration method for major-diameter aluminum-alloy round cast ingot heating facility |
| CN201834955U (en) * | 2010-10-09 | 2011-05-18 | 苏州工业园区华福科技有限公司 | Single-spindle industrial frequency heating furnace |
| CN203227694U (en) * | 2012-12-28 | 2013-10-09 | 深圳市银和投资发展有限公司 | Combined-type induction heating equipment for hard aluminium alloy |
| CN104550288A (en) * | 2014-12-26 | 2015-04-29 | 辽宁忠旺集团有限公司 | High-silicon aluminum alloy seamless tube extrusion process |
| CN105945081A (en) * | 2016-05-20 | 2016-09-21 | 淮安和通汽车零部件有限公司 | Isothermal extrusion process based on temperature segmented control |
| CN207170540U (en) * | 2017-08-07 | 2018-04-03 | 江苏中福铝镁科技有限公司 | A kind of aluminium alloy round cast ingot cartridge heater |
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2017
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101817030A (en) * | 2009-11-23 | 2010-09-01 | 中色科技股份有限公司 | Technical configuration method for major-diameter aluminum-alloy round cast ingot heating facility |
| CN201834955U (en) * | 2010-10-09 | 2011-05-18 | 苏州工业园区华福科技有限公司 | Single-spindle industrial frequency heating furnace |
| CN203227694U (en) * | 2012-12-28 | 2013-10-09 | 深圳市银和投资发展有限公司 | Combined-type induction heating equipment for hard aluminium alloy |
| CN104550288A (en) * | 2014-12-26 | 2015-04-29 | 辽宁忠旺集团有限公司 | High-silicon aluminum alloy seamless tube extrusion process |
| CN105945081A (en) * | 2016-05-20 | 2016-09-21 | 淮安和通汽车零部件有限公司 | Isothermal extrusion process based on temperature segmented control |
| CN207170540U (en) * | 2017-08-07 | 2018-04-03 | 江苏中福铝镁科技有限公司 | A kind of aluminium alloy round cast ingot cartridge heater |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108426452A (en) * | 2018-03-26 | 2018-08-21 | 苏州富博宏新材料科技有限公司 | A kind of processing technology that can quickly heat aluminium alloy |
| CN108803729A (en) * | 2018-05-22 | 2018-11-13 | 张家港市东航电热电器厂 | A kind of intelligent gradient electric heater unit and its temperature control system for aluminium extruded pressure cylinder |
| CN109746278A (en) * | 2019-01-02 | 2019-05-14 | 江苏兴甬铝业科技有限公司 | A kind of aluminum profile Isothermal Extrusion system and its pressing method |
| CN110976543A (en) * | 2019-12-16 | 2020-04-10 | 广东和胜工业铝材股份有限公司 | Sectional-speed extrusion process of aluminum alloy |
| CN110976543B (en) * | 2019-12-16 | 2021-06-08 | 广东和胜工业铝材股份有限公司 | Sectional-speed extrusion process of aluminum alloy |
| CN113976652A (en) * | 2021-09-27 | 2022-01-28 | 营口忠旺铝业有限公司 | Extrusion production process of wide radiator |
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Application publication date: 20171020 |
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