CN105689666B - A kind of non-ferrous metal depth backheat semi-continuous casting device and its method - Google Patents
A kind of non-ferrous metal depth backheat semi-continuous casting device and its method Download PDFInfo
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- CN105689666B CN105689666B CN201610100047.4A CN201610100047A CN105689666B CN 105689666 B CN105689666 B CN 105689666B CN 201610100047 A CN201610100047 A CN 201610100047A CN 105689666 B CN105689666 B CN 105689666B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/124—Accessories for subsequent treating or working cast stock in situ for cooling
- B22D11/1241—Accessories for subsequent treating or working cast stock in situ for cooling by transporting the cast stock through a liquid medium bath or a fluidized bed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
- B22D11/041—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds for vertical casting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/16—Controlling or regulating processes or operations
- B22D11/22—Controlling or regulating processes or operations for cooling cast stock or mould
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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
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Abstract
A kind of non-ferrous metal depth backheat semi-continuous casting device and its method belong to non-ferrous metal semi-continuous casting field.Device includes non-ferrous metal semi-continuous casting device, secondary cooling water occluding device, temperature sensor and closed-loop control system.Method：1) startup of secondary cooling water occluding device；2) deep backheat semi-continuous casting：When the measuring temperature of temperature sensor is less than the non-equilibrium solidus temperature T1 of ingot casting, by closed-loop control system, lifting device control water blocking device is set to move upwards, until the measuring temperature of temperature sensor reaches 0.95T1, stop motion；3) casting terminates；4) short time high temperature homogenizes：As the sum of mass percent of alloying element of addition ＞ 3wt%, homogenizing annealing is carried out.Apparatus of the present invention and method, short route directly carry out Homogenization Treatments, and technique more simplifies；Time-saving energy-saving obtains homogeneous or nearly homogeneous ingot casting, to cancel homogenizing annealing or carry out homogenizing annealing in short-term.
Description
Technical field
The invention belongs to non-ferrous metal semi-continuous casting fields, and in particular to a kind of non-ferrous metal depth backheat semi-continuous casting
Devices and methods therefor.
Background technology
The production procedure of nonferrous metal product is usually：At melting-casting-homogenizing annealing-hot-working-cold working-heat
Reason, wherein homogenization heat treatment process is one of the link most to consume energy, because common uniform heat treatment process will adopted generally
Molten with 0.80.95T, i.e., slightly below alloy starts the temperature melted, and one is well matched using solidus temperature more non-equilibrium than alloy low 40
DEG C, keep the temperature 12-24h.
The semicontinuous water cooling casting method casting alloy ingot casting of nonferrous metal product generally use makes since cooling velocity is fast
The liquid metals of melting generates non-equilibrium crystallization in solidification, causes the chemical composition of ingot casting, the inhomogeneities of tissue, i.e., so-called
Non-equilibrium state, making inside ingot, there is the residual stress that generate when casting.The homogenizing annealing of ingot casting is exactly to disappear
Except the residual stress of inside ingot, the chemical composition of ingot casting and the inhomogeneities of tissue are reduced or eliminated, to reach improvement ingot casting
Pressure machining characteristics and product certain final performances purpose.
Homogenizing annealing mainly makes alloy solid solution composition become uniform, and non-equilibrium superfluous phase disappears.This uniform ingredients
It is the result of atoms permeating in metal and alloy with the non-equilibrium superfluous mechanism mutually to disappear.Diffusion：Diffusion is in metal and alloy
Atom travel motion under certain condition.It either in simple metal similar atom homogeneous diffusion, can also be close
" the heterogeneous diffusion " of solute atoms in a solvent in gold.Since atoms permeating needs certain energy, in order to accelerate the expansion of atom
It dissipates, needs that alloy cast ingot suitably heat, keeps the temperature.But the temperature of its non-equilibrium solidus of different-alloy is different, so not
Heating temperature, soaking time with alloy cast ingot are different.The variation ingot casting organized in Homogenization Process is in Homogenization Process
In, the Homogenization Process of tissue is complex.Generally phase transformation is not generated in the solid state, and atoms permeating is also in certain range
Interior progress.Because a large amount of defect, impurity particle on crystal boundary hamper the exchange of atom between brilliant material, therefore crystal grain after homogenizing
Size variation very little.But in general, microstructure homogenization process is a dissolving, the process of (precipitation) is precipitated.
Currently, there are the following problems for homogenization heat treatment process：First, uniformization effect is bad, needs multistage or long
Time；Second, ingot casting causes Homogenization Process that burning locally occurs there are serious gross segregation；Third, homogenization heat treatment
Process energy consumption is big.Therefore, it is the weight studied at present that processing time and improvement effect how are reduced in homogenizing heat treatment process
Point.
With the development of technology, successively there is two-stage or multistage uniform technology in recent two decades, and this technology is mainly
It is eliminated when long using low temperature in ingot casting production due to non-equilibrium object phase caused by nonequilibrium freezing, is then utilizing high temperature, short time
Improve uniformization effect.This technology needs high-precision stove as ensureing, burn-off phenomenon is will appear once temperature fluctuation,
Considerably increase production cost.
To sum up, the energy consumption of homogenization heat treatment process is reduced there is no good method.The present invention will partly be connected by changing
The process of setting of continuous casting process alloy, makes alloying element fully spread, and obtains homogeneous or nearly homogeneous ingot casting, uniform to cancel
Annealing carries out homogenizing annealing in short-term.By without or substantially reduce the energy consumption that homogenizing annealing brings.
Invention content
In view of the deficiencies of the prior art, a kind of non-ferrous metal depth backheat semi-continuous casting device of present invention offer and its side
Method is related to non-ferrous metal semi-continuous casting and following process, is related to a kind of non-ferrous metal homogenizing annealing method.
The non-ferrous metal depth backheat semi-continuous casting device of the present invention, including it is non-ferrous metal semi-continuous casting device, secondary
Cooling water occluding device, temperature sensor and closed-loop control system；
Secondary cooling water occluding device is arranged below the secondary cooling water water breakthrough point of non-ferrous metal semi-continuous casting device
At 200~300mm, preferably below the secondary cooling water water breakthrough point of crystallizer at 200mm, including water blocking device and lifting device；
Water blocking device, is fixed on lifting device, can quickly block secondary cooling water, be contact water blocking device or
Contactless water blocking device, preferably contactless water blocking device；Wherein, contact water blocking device is enclosed with soft heat safe material
At with ingot casting appearance and size same apparatus, guarantee with ingot casting be in close contact, it is water-tight, such as super heated rubber；Contactless water resistance
Disconnected device with pressure-air amplifier surround it is identical as ingot casting shape and with it at a distance of 10~30mm, contactless water blocking device outlet
Pressure is 0.05~0.8MPa, and optimal outlet pressure is 0.1~0.3MPa, ensures pressure-air by ingot casting surface secondary cooling water
It blows down and water-tight, such as air knife；
Lifting device, control water blocking device moves up and down along ingot casting casting direction, and speed is adjustable；
Temperature sensor, setting is below the secondary cooling water occluding device at 40~60mm, and with secondary cooling water resistance
Disconnected device moves synchronously, for measuring the temperature of corresponding position ingot casting surface；Wherein, preferably below secondary cooling water occluding device
At 50mm；Temperature sensor is contact thermocouple, measuring temperature ranging from 20~600C；
Closed-loop control system is connected with temperature sensor and lifting device respectively；It is collected by temperature sensor
Ingot surface temperature controls the position and speed of lifting device；
Using non-ferrous metal depth backheat semi-continuous casting device, the method for carrying out non-ferrous metal depth backheat semi-continuous casting,
Include the following steps：
Step 1：The startup of secondary cooling water occluding device：
Start non-ferrous metal semi-continuous casting device and carry out semi-continuous casting, when the casting length of ingot casting reaches 400~
When 450mm, start secondary cooling water occluding device；
Step 2, deep backheat semi-continuous casting：
The ingot surface temperature that horizontal position is corresponded to by temperature sensor measurement, when the measuring temperature of temperature sensor is small
When the non-equilibrium solidus temperature T1 of ingot casting, by closed-loop control system, lifting device control water blocking device is made to move upwards,
Until the measuring temperature of temperature sensor reaches 0.95T1, by closed-loop control system, make lifting device stop motion, at this time water
The distance of secondary cooling water water breakthrough point of the block device away from crystallizer, referred to as backheat position, temperature 0.95T1 are known as backheat temperature；
Step 3：Casting terminates：
When ingot casting reaches designated length, stop, for stream, terminating casting；
Step 4：Short time high temperature homogenizes：
(1) as the sum of mass percent of alloying element of addition ＞ 3wt%, ingot casting is subjected to homogenization at once and is moved back
Fire：1~6h is kept the temperature in 0.9T ± 50 DEG C, wherein T is the balance solidus temperature of ingot casting；
(2) as the sum of mass percent of alloying element of addition≤3wt%, homogenizing annealing is not needed.
Wherein：
In the step 1, the casting speed of non-ferrous metal semi-continuous casting device is 40~350mm/min, cooling water inflow
For 0.16~0.5L/min/mm, pouring temperature is 710~725 DEG C；When the casting length of ingot casting reaches 400mm, start secondary
Cooling water occluding device；
In the step 2, backheat position is 50~200mm, and backheat temperature is 450~570 DEG C；
In the step 4 (1), homogenizing annealing is carried out in homogenizing stove；The temperature of annealing is preferably 0.9T.
The deep backheat of the present invention is exactly depth backheat, refers to during semi-continuous casting after ingot solidification, due to water blocking
Blocking of the device to secondary cooling water makes the temperature that ingot casting lower part has solidified part go back up to very high temperature (ingot casting solidus again
Below).
Why ingot casting will pass through homogenizing annealing, and reason is that in solidification nonequilibrium freezing occurs for ingot casting, exists
Ingredient unevenness and non-equilibrium object phase on micro-scale (in crystal grain) are opened if do not eliminated it when may result in following process
It splits or penalty.Therefore, production must carry out homogenizing annealing processing in nonferrous metal product.But if ingot casting
This uneven components of middle generation weaken, so that it may to reduce time of homogenized annealing or even remove homogenizing annealing.The present invention
Exactly generated with the thinking.
Ingredient is uneven in crystal grain in ingot casting, mainly controls solidification rate (cooling rate) and ingot casting when semi-continuous casting
Temperature.When casting process setting rate reduces, back-diffusion increase when solidifying makes the portion for first solidifying in crystal grain and solidifying afterwards
It is divided into and point reaches unanimity, and then it is uneven to reduce ingredient；In addition, the ingot casting temperature that casting obtains is high, be conducive to the expansion of alloying element
It dissipates, solute element ingredient in crystal grain is made to reach unanimity, and then it is uneven to reduce ingredient.As long as therefore during control semi-continuous casting
External intensity of cooling, it will be able to cooling rate, that is, solidification rate when control solidification well, to reduce in this crystal grain
Ingredient is uneven.So, mainly consist of two parts in the cooling of semi-continuous casting process, as shown in Figure 1, i.e. primary cooling (crystallization
Device cools down) and secondary cooling.The primary cooling effect that scull is functioned only as in casting process, is to determine ingot surface quality
Key factor, but it is little on ingredient unevenness influence in this crystal grain, and this layer by milling face or will be taken off before following process
Skin process removes, so, secondary cooling is only determinant.
Cooling rate can be efficiently reduced and improve the effect of ingot casting temperature by reducing secondary cooling intensity, still, secondary
When cooling is reduced to a certain degree, it will occur to run aluminium accident, so that casting is failed, or even cause danger.In order to avoid this
The generation of class accident, the present invention block the method for secondary cooling water to realize the purpose for reducing intensity of cooling using depth.Specifically
Principle is：Using larger secondary cooling water when casting, when secondary cooling water and one it is cold cooperatively form it is certain thickness solidifying
Gu shell, the solidified shell sufficient intensity support not solidified melt, away from secondary cooling water water breakthrough point following distance position by two
Cold water removes, and ensures that the latent heat that ingot casting is released when not having the part of secondary cooling water cooling cannot be by alloy graining dissolves, at this time
The Topography heating that solidified shell is released so that solute element is spread in the solidified shell first solidified, in addition, due to not having
The partially solidified rate of secondary water cooling is slow, close to equilibrium freezing, so crystal grain interior element is uniform when solidification；Then, work as alloy
When solidifying completely, ingot casting internal and external temperature is uniform, and temperature is very high, can realize the effect of homogenization.And secondary cooling water removes position
It sets closer to secondary cooling water water breakthrough point, and ingot casting temperature is higher, solute element is distributed more uniform in crystal grain.
The non-ferrous metal depth backheat semi-continuous casting device and its method of the present invention, compared with prior art, advantageous effect
For：
(1) non-ferrous metal depth backheat semi-continuous casting device of the invention and its method, short route, in semi-continuous casting
Homogenization Treatments are directly carried out in journey, technique more simplifies；
(2) method of non-ferrous metal depth backheat semi-continuous casting of the invention, time-saving energy-saving, by changing semi-continuous casting
The process of setting for crossing alloy range, makes alloying element fully spread, and homogeneous or nearly homogeneous ingot casting is obtained, to cancel homogenizing annealing
Or carry out homogenizing annealing in short-term.The energy consumption for homogenizing annealing will be substantially reduced bringing.
Description of the drawings
The semi-continuous casting process schematic of Fig. 1 tradition non-ferrous metals, wherein：1：Crystallizer, 2：Secondary cooling water eye, 3：Water breakthrough
Point, 4：Secondary cooling water, 5：Dummy device, A：Liquid phase region, B：Two-phase section, C：Solid phase area；
The non-ferrous metal depth backheat semi-continuous casting device schematic diagram of Fig. 2 embodiment of the present invention, wherein：6：Secondary cooling water blocks
Device, 7：Temperature sensor, 8：Ingot casting；
The metallograph of 3003 aluminium alloy cast ingots prepared by Fig. 3 embodiment of the present invention 1 and comparative example, wherein：(a) corresponding real
The comparative example of example 1 is applied, (b) corresponding embodiment 1；
The metallograph of 5083 aluminium alloy cast ingots prepared by Fig. 4 embodiment of the present invention 2 and comparative example, wherein：(a) corresponding real
The comparative example of example 2 is applied, (b) corresponding embodiment 2；
The metallograph of 7050 aluminium alloy cast ingots prepared by Fig. 5 embodiment of the present invention 3 and comparative example, wherein：(a) corresponding real
The comparative example of example 3 is applied, (b) corresponding embodiment 3.
Specific implementation mode
The non-ferrous metal depth backheat semi-continuous casting device that following embodiment uses, as shown in Fig. 2, including non-ferrous metal half
Continuous casting apparatus, secondary cooling water occluding device 6, temperature sensor 7 and closed-loop control system；
The secondary cooling water in the crystallizer 1 of non-ferrous metal semi-continuous casting device is arranged in secondary cooling water occluding device 6
At 3 lower section 200mm of water breakthrough point, including water blocking device and lifting device；
Water blocking device, is fixed on lifting device, can quickly block secondary cooling water 4, is contactless water blocking
Device air knife；Wherein, contactless water blocking device with pressure-air amplifier surround it is identical as 8 shape of ingot casting and with it apart
10mm, contactless water blocking device outlet pressure be 0.3MPa, ensure pressure-air by 8 surface second cooling water of ingot casting blow down and
It is water-tight；
Lifting device, control water blocking device moves up and down along 8 casting direction of ingot casting, and speed is adjustable；
Temperature sensor 7, setting is below the secondary cooling water occluding device 6 at 50mm, and with secondary cooling water blocking
Device 6 moves synchronously, for measuring the temperature on 8 surface of corresponding position ingot casting；Temperature sensor 7 is contact thermocouple, is measured
20~600C of temperature range；
Closed-loop control system, by the collected ingot surface temperature of temperature sensor, control lifting device position and
Speed；
Embodiment 1
Using above-mentioned non-ferrous metal depth backheat semi-continuous casting device, the 3003 aluminium alloys casting of a diameter of 160mm is carried out
The method of ingot depth backheat semi-continuous casting, the ingredient of 3003 aluminium alloy cast ingots are shown in Table 1 by mass percentage,
Table 1
Specifically comprise the following steps：
Step 1：The startup of secondary cooling water occluding device：
Start non-ferrous metal semi-continuous casting device and carries out semi-continuous casting, casting speed 350mm/min, cooling water inflow
For 0.5L/min/mm, pouring temperature is 710 DEG C；When the casting length of ingot casting reaches 400mm, start secondary cooling water blocking
Device；
Step 2, deep backheat semi-continuous casting：
The ingot surface temperature that horizontal position is corresponded to by temperature sensor measurement, when the measuring temperature of temperature sensor is small
When the non-equilibrium solidus temperature T1 of ingot casting, by closed-loop control system, lifting device control water blocking device is made to move upwards,
Until the measuring temperature of temperature sensor reaches 0.95T1, by closed-loop control system, make lifting device stop motion, backheat position
It is set to 150mm, backheat temperature is 570 DEG C；
Step 3：Casting terminates：
When ingot casting reaches designated length, stop, for stream, terminating casting.
Comparative example：
Start non-ferrous metal semi-continuous casting device and carries out semi-continuous casting, casting speed 350mm/min, cooling water inflow
For 0.5L/min/mm, pouring temperature is 710 DEG C；Obtain 3003 aluminium alloy cast ingots of a diameter of 160mm.
The metallograph of 3003 aluminium alloy cast ingot and comparative example ingot casting manufactured in the present embodiment is shown in Fig. 3.
Embodiment 2
Using above-mentioned non-ferrous metal depth backheat semi-continuous casting device, it is 200mmX600mm's to carry out cross-sectional area
The method of 5083 aluminium alloy cast ingot depth backheat semi-continuous castings, the ingredient of 5083 aluminium alloy cast ingots are shown in Table 2 by mass percentage,
Table 2
Specifically comprise the following steps：
Step 1：The startup of secondary cooling water occluding device：
Start non-ferrous metal semi-continuous casting device and carries out semi-continuous casting, casting speed 180mm/min, cooling water inflow
For 0.31L/min/mm, pouring temperature is 710 DEG C；When the casting length of ingot casting reaches 450mm, start secondary cooling water blocking
Device；
Step 2, deep backheat semi-continuous casting：
The ingot surface temperature that horizontal position is corresponded to by temperature sensor measurement, when the measuring temperature of temperature sensor is small
When the non-equilibrium solidus temperature T1 of ingot casting, by closed-loop control system, lifting device control water blocking device is made to move upwards,
Until the measuring temperature of temperature sensor reaches 0.95T1, by closed-loop control system, make lifting device stop motion, backheat position
It is set to 50mm, backheat temperature is 500 DEG C；
Step 3：Casting terminates：
When ingot casting reaches designated length, stop, for stream, terminating casting；
Step 4：Short time high temperature homogenizes：
Ingot casting is subjected to homogenizing annealing at once：1h is kept the temperature at 510 DEG C.
Comparative example：
Start non-ferrous metal semi-continuous casting device and carries out semi-continuous casting, casting speed 180mm/min, cooling water inflow
For 0.31L/min/mm, pouring temperature is 710 DEG C；Obtain 5083 aluminium alloy cast ingots that cross-sectional area is 200mmX600mm.
The metallograph of 5083 aluminium alloy cast ingot and comparative example ingot casting manufactured in the present embodiment is shown in Fig. 4.
Embodiment 3
Using above-mentioned non-ferrous metal depth backheat semi-continuous casting device, it is 500mmX1500mm's to carry out cross-sectional area
The method of 7050 aluminium alloy cast ingot depth backheat semi-continuous castings, the ingredient of 7050 aluminium alloy cast ingots are shown in Table 3 by mass percentage,
Table 3
Specifically comprise the following steps：
Step 1：The startup of secondary cooling water occluding device：
Start non-ferrous metal semi-continuous casting device and carries out semi-continuous casting, casting speed 40mm/min, cooling water inflow
For 0.16L/min/mm, pouring temperature is 725 DEG C；When the casting length of ingot casting reaches 450mm, start secondary cooling water blocking
Device；
Step 2, deep backheat semi-continuous casting：
The ingot surface temperature that horizontal position is corresponded to by temperature sensor measurement, when the measuring temperature of temperature sensor is small
When the non-equilibrium solidus temperature T1 of ingot casting, by closed-loop control system, lifting device control water blocking device is made to move upwards,
Until the measuring temperature of temperature sensor reaches 0.95T1, by closed-loop control system, make lifting device stop motion, backheat position
It is set to 200mm, backheat temperature is 450 DEG C；
Step 3：Casting terminates：
When ingot casting reaches designated length, stop, for stream, terminating casting；
Step 4：Short time high temperature homogenizes：
Ingot casting is subjected to homogenizing annealing at once：3h is kept the temperature at 500 DEG C.
Comparative example：
Start non-ferrous metal semi-continuous casting device and carries out semi-continuous casting, casting speed 40mm/min, cooling water inflow
For 0.16L/min/mm, pouring temperature is 725 DEG C；Obtain 7050 aluminium alloy cast ingots that cross-sectional area is 500mmX1500mm.
The metallograph of 7050 aluminium alloy cast ingot and comparative example ingot casting manufactured in the present embodiment is shown in Fig. 5.
Claims (3)
1. a kind of method of non-ferrous metal depth backheat semi-continuous casting, which is characterized in that the non-ferrous metal depth backheat of use partly connects
Continuous casting device, including non-ferrous metal semi-continuous casting device further include secondary cooling water occluding device, temperature sensor and are closed
Ring control system；The secondary cooling water occluding device, be arranged non-ferrous metal semi-continuous casting device crystallizer two
Below secondary cooling water water breakthrough point at 200~300mm, including water blocking device and lifting device；Water blocking device, is fixed on lifting device
On；The temperature sensor, setting is below the secondary cooling water occluding device at 40~60mm；The closed-loop control system
System, is connected with temperature sensor and lifting device respectively；
Method includes the following steps：
Step 1：The startup of secondary cooling water occluding device：
Start non-ferrous metal semi-continuous casting device and carry out semi-continuous casting, when the casting length of ingot casting reaches 400~450mm
When, start secondary cooling water occluding device；
Step 2, deep backheat semi-continuous casting：
The ingot surface temperature that horizontal position is corresponded to by temperature sensor measurement, when the measuring temperature of temperature sensor is less than casting
When the non-equilibrium solidus temperature T1 of ingot, by closed-loop control system, lifting device control water blocking device is made to move upwards, until
The measuring temperature of temperature sensor reaches 0.95T1, by closed-loop control system, makes lifting device stop motion, at this time water blocking
The distance of secondary cooling water water breakthrough point of the device away from crystallizer, referred to as backheat position, temperature 0.95T1 are known as backheat temperature；Wherein return
Thermal potential is set to 50~200mm, and backheat temperature is 450~570 DEG C；
Step 3：Casting terminates：
When ingot casting reaches designated length, stop, for stream, terminating casting；
Step 4：Short time high temperature homogenizes：
(1) as the sum of mass percent of alloying element of addition ＞ 3wt%, ingot casting is subjected to homogenizing annealing at once:
0.9T ± 50 DEG C keep the temperature 1~6h, wherein T is the balance solidus temperature of ingot casting；
(2) as the sum of mass percent of alloying element of addition≤3wt%, uneven annealing.
2. the method for non-ferrous metal depth backheat semi-continuous casting according to claim 1, which is characterized in that described is coloured
The casting speed of metal semicontinuous casting device is 40~350mm/min, and cooling water inflow is 0.16~0.5L/min/mm, cast
Temperature is 710~725 DEG C；When the casting length of ingot casting reaches 400mm, start secondary cooling water occluding device.
3. the method for non-ferrous metal depth backheat semi-continuous casting according to claim 1, which is characterized in that the step
In 4 (1), homogenizing annealing is carried out in homogenizing stove；The temperature of annealing is 0.9T.
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| CN101450372A (en) * | 2008-12-18 | 2009-06-10 | 苏州有色金属研究院有限公司 | Ingot-casting area water cooling technique during aluminum alloy semi-continuous casting |
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| JP5379671B2 (en) * | 2009-12-24 | 2013-12-25 | 株式会社神戸製鋼所 | Horizontal continuous casting apparatus and horizontal continuous casting method |
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|---|---|---|---|---|
| US5431214A (en) * | 1992-05-12 | 1995-07-11 | Yoshida Kogyo K.K. | Apparatus for continuous casting |
| CN101300092A (en) * | 2005-10-28 | 2008-11-05 | 诺韦利斯公司 | Homogenization and heat-treatment of cast metals |
| CN101259524A (en) * | 2008-04-22 | 2008-09-10 | 苏州有色金属研究院有限公司 | Design method of dash device for hard aluminum alloy semi-continuous casting |
| CN101450372A (en) * | 2008-12-18 | 2009-06-10 | 苏州有色金属研究院有限公司 | Ingot-casting area water cooling technique during aluminum alloy semi-continuous casting |
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