CN105764631A - Pulling-up-type continuous casting method and pulling-up-type continuous casting apparatus - Google Patents
Pulling-up-type continuous casting method and pulling-up-type continuous casting apparatus Download PDFInfo
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- CN105764631A CN105764631A CN201480064174.2A CN201480064174A CN105764631A CN 105764631 A CN105764631 A CN 105764631A CN 201480064174 A CN201480064174 A CN 201480064174A CN 105764631 A CN105764631 A CN 105764631A
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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
- B22D11/20—Controlling or regulating processes or operations for removing cast stock
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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
- B22D11/01—Continuous casting of metals, i.e. casting in indefinite lengths without moulds, e.g. on molten surfaces
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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
- B22D11/14—Plants for continuous casting
- B22D11/145—Plants for continuous casting for upward 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
Abstract
A pulling-up-type continuous casting method according to an aspect of the present invention includes disposing a shape defining member (102) above a molten-metal surface of molten metal (M1) held in a holding furnace (101), the shape defining member (102) being configured to define a cross-sectional shape of a cast-metal article (M3) to be cast, submerging a starter (ST) into the molten metal (M1) while making the starter (ST) pass through the shape defining member (102), and pulling up the molten metal (M1) by pulling up the starter (ST) while making the molten metal (M1) pass through the shape defining member (102) after a temperature of the shape defining member (102) reaches a predetermined reference temperature. The reference temperature is equal to or higher than a solidification completion temperature of the molten metal (M1).
Description
Technical field
The present invention relates to top-guiding type continuous casing and top-guiding type continuous casting apparatus.
Background technology
Patent documentation 1 proposes a kind of free casting method as the revolutionary top-guiding type continuous casing not needing any mould.As shown in patent documentation 1, starter is being immersed in the surface of molten metal (motlten metal) (namely, molten metal surface) below after, starter will be drawn so that some motlten metals in motlten metal are followed this starter because of the skin covering of the surface of motlten metal and/or surface tension and are pulled up by this starter.It should be noted that limit component through the shape being arranged near molten metal surface by drawing motlten metal and the motlten metal pulled out cooled down, it is possible to casting has the casting gold metal products of expectation cross sectional shape continuously.
In common continuous casing, shape and the shape in cross section on longitudinal direction are limited by mould.In this continuous casing, especially, owing to the metal (that is, casting gold metal products) of solidification needs the inside through mould, therefore casting gold metal products has the shape extended along the longitudinal direction with rectilinear form.
In contrast to this, the shape used in free casting method limits component and only limits the cross sectional shape of casting gold metal products, and does not limit the shape on longitudinal direction.Therefore, by making starter (or shape restriction component) move in the horizontal direction while starter draws, it is possible to produce and there is variously-shaped casting gold metal products in a longitudinal direction.Such as, patent document 1 discloses that a kind of there is zigzag shape or the spiral-shaped and hollow casting gold metal products of non-linear shapes (that is, pipe) in a longitudinal direction.
Reference listing
Patent documentation
Patent documentation 1: Japanese Unexamined Patent Application Publication No.2012-61518
Summary of the invention
Technical problem
The inventors have discovered that problems with.
In free casting method disclosed in patent documentation 1, when shape limit component be not sufficiently heated time, particularly casting start time etc., in some cases, owing to motlten metal limits member contact when starter limits component through shape with shape, the motlten metal of the bottom therefore following the starter just above drawn solidifies.In these cases, coagulated mass is stuck in shape and limits on component, thus causing the surface defect in the casting gold metal products near the border between starter and casting gold metal products, such as stripping and curling.
The present invention makes in view of the above problems, and it is an object of the invention to provide such top-guiding type continuous casting apparatus and top-guiding type continuous casing: wherein, the surface defect in casting gold metal products near the border between starter and casting gold metal products is prevented.The solution of problem
Top-guiding type continuous casing according to aspects of the present invention includes:
Shape limiting component and is arranged in above the molten metal surface of the motlten metal being held in holding furnace, this shape limits component and is configured to limit the cross sectional shape of casting gold metal products to be cast；
While making this starter limit component through shape, starter is immersed in motlten metal；And
After the temperature of shape restriction component reaches predetermined reference temperature, by making motlten metal draw motlten metal on shape restriction component while starter draws, wherein,
Reference temperature completes temperature equal to or higher than the solidification of motlten metal.
In the top-guiding type continuous casing according to this aspect of the invention, after the temperature of shape restriction component reaches predetermined reference temperature, by making motlten metal draw motlten metal on shape restriction component while starter draws.It should be noted that reference temperature completes temperature equal to or higher than the solidification of motlten metal.Therefore, be prevented from motlten metal solidification otherwise motlten metal this solidification will owing to following the motlten metal of the bottom of the starter just above drawn and shape limits contacting and occur between component, thus preventing the surface defect in the casting gold metal products near the border between starter and casting gold metal products.
Top-guiding type continuous casting apparatus according to aspects of the present invention includes:
Holding furnace, this holding furnace keeps motlten metal；
Shape limits component, and this shape limits component and is arranged in above the molten metal surface of motlten metal, and this shape limits component and is configured to limit the cross sectional shape of casting gold metal products to be cast；
Temperature sensor, this temperature sensor measurement shape limits the temperature of component；
On draw machine, this draws machine by component drawing motlten metal by making while starter draws motlten metal limit through shape；And
Casting control unit, this casting control unit begin through after the temperature being limited component by the shape of temperature sensor measurement reaches predetermined reference temperature draw machine carry out on draw, wherein,
Reference temperature completes temperature equal to or higher than the solidification of motlten metal.
Top-guiding type continuous casting apparatus according to this aspect of the invention include casting control unit, this casting control unit begin through after the temperature being limited component by the shape of temperature sensor measurement reaches predetermined reference temperature draw machine carry out on draw.It should be noted that reference temperature completes temperature equal to or higher than the solidification of motlten metal.Therefore, be prevented from motlten metal solidification otherwise motlten metal this solidification will owing to following the motlten metal of the bottom of the starter just above drawn and shape limits contacting and occur between component, thus preventing the surface defect in the casting gold metal products near the border between starter and casting gold metal products.
The advantageous effects of invention
According to the present invention it is possible to provide such top-guiding type continuous casting apparatus and top-guiding type continuous casing: wherein, the surface defect in casting gold metal products near the border between starter and casting gold metal products is prevented.
Accompanying drawing explanation
[Fig. 1] Fig. 1 is the schematic cross-sectional of the free casting device according to the first illustrative embodiments；
[Fig. 2] Fig. 2 is the plane graph that the shape according to the first illustrative embodiments limits component 102；
[Fig. 3] Fig. 3 is provided in the block diagram according to the Control System For Smelting-Casting in the free casting device of the first illustrative embodiments；
[Fig. 4] Fig. 4 schematically shows starter ST after the temperature of shape restriction component 102 reaches reference temperature to limit the amplification cross section of the state of component 102 through shape；
[Fig. 5] Fig. 5 schematically shows starter ST before the temperature of shape restriction component 102 reaches reference temperature to limit the amplification cross section of the state of component 102 through shape；
[Fig. 6] Fig. 6 show shape limit the temperature of component 102 be 650 degrees Celsius its higher than reference temperature time starter ST by draw the microspur photo of state limiting component 102 through shape；
[Fig. 7] Fig. 7 show shape limit the temperature of component 102 be 200 degrees Celsius its lower than reference temperature time starter ST by draw the microspur photo of state limiting component 102 through shape；
[Fig. 8] Fig. 8 is the plane graph of the shape restriction component 102 of the modified example according to the first illustrative embodiments；
[Fig. 9] Fig. 9 is the side view of the shape restriction component 102 of the modified example according to the first illustrative embodiments；
[Figure 10] Figure 10 is the amplification cross section of the shape restriction component 202 schematically showing the free casting device according to the second illustrative embodiments；And
[Figure 11] Figure 11 is provided in the block diagram according to the Control System For Smelting-Casting in the free casting device of the second illustrative embodiments.
Detailed description of the invention
The specific illustrative embodiment present invention applied hereinafter with reference to accompanying drawing is described in detail.But, the invention is not restricted to illustrative embodiments shown below.Additionally, in order to make this explanation clear, the following description and drawings are simplified as one sees fit.
[the first illustrative embodiments]
First, with reference to Fig. 1, the free casting device (top-guiding type continuous casting apparatus) according to the first illustrative embodiments is illustrated.Fig. 1 is the schematic cross-sectional of the free casting device according to the first illustrative embodiments.As shown in fig. 1, according to the free casting device of the first illustrative embodiments include motlten metal holding furnace 101, shape limit component 102, supporting bar 104, actuator 105, cooling gas nozzle 106, cooling gas supply unit 107, on draw machine 108 and temperature sensor 110.
It should be noted that it is clear that the right hand xyz coordinate system shown in Fig. 1 is to be illustrated for convenience, particularly for the purpose that position relationship between parts is described.In FIG, x/y plane formation horizontal plane and z-axis direction are vertical direction.More specifically, the forward in z-axis is direction vertically upward.
Motlten metal holding furnace 101 holds the motlten metal M1 of such as aluminum or aluminum alloy etc, and keeps being in predetermined temperature (such as, about 720 degrees Celsius) by motlten metal M1, and under this predetermined temperature, motlten metal M1 has mobility.In the example shown in fig. 1, owing to motlten metal holding furnace 101 does not supplement motlten metal during casting process, therefore the surface (that is, molten metal surface) of motlten metal M1 reduces along with the carrying out of casting process.Alternatively, motlten metal holding furnace 101 can supplement motlten metal as required during casting process so that molten metal surface keeps being in level altitude.It should be noted that the position of freezing interface SIF can raise by increasing the design temperature of motlten metal holding furnace 101, and the position of freezing interface SIF can reduce by reducing the design temperature of motlten metal holding furnace 101.It is clear that motlten metal M1 can be the metal except aluminum or aluminum alloy.
Shape limits component 102 and is made up of such as pottery or rustless steel, and is arranged on motlten metal M1.Shape limits component 102 and limits the cross sectional shape of casting metal M3 to be cast.Casting metal M3 shown in Fig. 1 is plate or the solid cast metallic article of the horizontal cross-section (hereinafter referred to lateral cross section) with rectangular shape.It should be noted that it is clear that the cross sectional shape of casting metal M3 is had no particular limits.Casting metal M3 can be the casting gold metal products of hollow, such as round tube and rectangular tube.
In the example that figure 1 illustrates, shape limits component 102 and is arranged so that its bottom side first type surface (basal surface) contacts with molten metal surface.Accordingly it is possible to prevent form oxide-film on the surface of motlten metal M1 and the exogenous impurity that swims on the surface of motlten metal M1 enters casting metal M3.Additionally, shape restriction component 102 can be melted metal M1 and easily heat.
Alternatively, shape limits component 102 and may be disposed so that its bottom surface has preset distance (such as, about 0.5mm) from molten metal surface.When shape restriction component 102 is arranged to from molten metal surface certain distance, it is therefore prevented that shape limits thermal deformation and the corrode of component 102, thus improving shape to limit the durability of component 102.
Fig. 2 is the plane graph that the shape according to the first illustrative embodiments limits component 102.It should be noted that the shape shown in Fig. 1 limits the cross section of component 102 corresponding to along the cross section intercepted of the line I-I in Fig. 2.As shown in Figure 2, shape limits component 102 and has such as rectangular shape when observing from top, and shape limits component 102 place in the central portion and has thickness as t1 and width as the rectangular aperture (molten metal passage section 103) of w1.
It should be noted that also show temperature sensor 110 in Fig. 2, this temperature sensor 110 is fixed on shape and limits on the top side first type surface (top surface) of component 102.Additionally, the xyz coordinate system shown in Fig. 2 is corresponding to the xyz coordinate system shown in Fig. 1.
As shown in fig. 1, motlten metal M1 follows casting metal M3 and is cast on metal M3 and draws because of skin covering of the surface and/or the surface tension of motlten metal M1.Additionally, motlten metal M1 limits the molten metal passage section 103 of component 102 through shape.It is to say, when motlten metal M1 limits the molten metal passage section 103 of component 102 through shape, external force limits component 102 from shape and is applied to motlten metal M1, and the cross sectional shape casting metal M3 is thus defined.It should be noted that follow because of the skin covering of the surface of motlten metal and/or surface tension casting metal M3 and from molten metal surface by the motlten metal that draws be called " the motlten metal M2 being kept ".Additionally, the border between casting metal M3 and the motlten metal M2 being kept is freezing interface SIF.
Supporting bar 104 supports shape and limits component 102.
Supporting bar 104 is connected to actuator 105.Shape limits component 102 can be mobile along up/down direction (vertical direction, i.e. z-axis direction) by supporting bar 104 by means of actuator 105.By this configuration, when molten metal surface reduces due to the carrying out of casting process, it is possible to shape is limited component 102 and moves down.
Cooling gas nozzle (cooling section) 106 be for by the cooling gas supplied from cooling gas supply unit 107 (such as, air, nitrogen, argon) to be injected in casting metal M3 upper and thus to casting the metal M3 chiller cooled down.The position of freezing interface SIF can reduce by increasing the flow rate of cooling gas, and the position of freezing interface SIF can raise by reducing the flow rate of cooling gas.It should be noted that cooling gas nozzle 106 can also be mobile along up/down direction (vertical direction, i.e. z-axis direction) and horizontal direction (x-axis direction and/or y-axis direction).It is therefoie, for example, when molten metal surface reduces due to the carrying out of casting process, it is possible to make the motion that cooling gas nozzle 106 and shape limit component 102 as one man move down.Alternatively, cooling gas nozzle 106 can as one man move with the horizontal movement above drawing machine 108 in the horizontal direction.
Pass through utilize be connected to starter ST on draw machine 108 up casting metal M3 while by cool down gas to casting metal M3 cool down, be positioned at the motlten metal M2 being kept near the SIF of freezing interface one after the other solidify from the upside (positive side along the z-axis direction) of motlten metal M2 towards the downside (minus side along Z-direction) of motlten metal M2 and thus form cast metal M3.The position of freezing interface SIF can raise by drawing the lead speed of machine 108 on increasing, and the position of freezing interface SIF can reduce by reducing above-mentioned lead speed.Additionally, the shape in a longitudinal direction of casting metal M3 can make while passing through up casting metal M3, casting metal M3 (x-axis direction and/or y-axis direction) in the horizontal direction is mobile at random to be changed.It should be noted that the shape in a longitudinal direction of casting metal M3 can by make shape limit component 102 move in the horizontal direction but not make on draw that machine 108 is mobile in the horizontal direction at random to be changed.
It should be noted that in order to obtain the position (highly) that the casting gold metal products M3, freezing interface SIF with accurate dimension and fabulous surface quality are held at being suitable for.It is to say, casting be setting rate in the SIF of freezing interface by lead speed institute substantial equilibrium perform.Consider productivity ratio, it is desirable to lead speed is bigger.But, if increase lead speed setting rate is unchanged simultaneously, then freezing interface SIF raises, and thus causes that the motlten metal M2 being kept is torn.As it has been described above, by increasing the flow rate of cooling gas and/or reducing molten metal temperature, it is possible to increase setting rate (namely, it is possible to reduce freezing interface SIF).
Temperature sensor 110 is measured shape and is limited the temperature of component 102.In the example that figure 1 illustrates, temperature sensor 110 is thermocouple.As shown in fig. 1, temperature sensor 110 preferably limits in shape and is fixed near molten metal passage section 103 on the top surface of component 102.It should be noted that temperature sensor 110 is not limited to thermocouple.That is, it is possible to use other contact type temperature sensors.In addition it is also possible to use non-contact temperature sensor.Contact type temperature sensor allows for temperature survey more accurately.
Free casting device according to the first illustrative embodiments can be measured shape by temperature sensor 110 and limit the temperature of component 102.Therefore, when casting starts, it is possible to limit after the temperature of component 102 reaches the temperature that the solidification of motlten metal M1 completes temperature (solidus temperature) or higher in shape and start to starter ST to draw.Therefore, it is prevented from the solidification of the solidification motlten metal M2 that otherwise this is kept of motlten metal M2 that is kept and will limit contacting and occur between component 102 due to the motlten metal M2 being kept and shape following the starter ST just above drawn, be therefore prevented from the casting metal M3 near the border between starter ST and casting metal M3 and surface defect occurs.It should be noted that it is also preferred that after the temperature of shape restriction component 102 reaches the solidification starting temperature (liquidus temperature) of motlten metal M1, start will starter ST draw through shape restriction component 102.It should be noted that when simple metal, solidified temperature and solidification starting temperature both of which and corresponding to the fusing point of this metal and be thus equal to each other.
It follows that the Control System For Smelting-Casting being arranged on according in the free casting device of the first illustrative embodiments is illustrated with reference to Fig. 3.Fig. 3 is provided in the block diagram according to the Control System For Smelting-Casting in the free casting device of the first illustrative embodiments.As shown in Figure 3, this Control System For Smelting-Casting include shape limit component 102, on draw machine 108, temperature sensor 110 and casting control unit 111.It should be noted that with reference to Fig. 1 shape limited component 102, on draw machine 108 and temperature sensor 110 is illustrated, and therefore there is omitted herein the detailed description to them.
Casting control unit 111 include memory element (not shown), this memory element shape memory limit component 102 starter ST start from motlten metal M1 by draw time use reference temperature.Subsequently, when the shape measured by temperature sensor 110 limits the temperature of component 102 lower than reference temperature, casting control unit 111 will not begin through draws machine 108 and will draw on starter ST.On the other hand, when the temperature that the shape measured by temperature sensor 110 limits component 102 reaches reference temperature, casting control unit 111 begins through draws machine 108 and will draw on starter ST.
It should be noted that the solidification that reference temperature is equal to or higher than motlten metal M1 completes temperature.When the reference temperature solidification lower than motlten metal M1 completes temperature, follow the motlten metal M2 being kept solidification when the motlten metal M2 being kept contacts of the bottom of the starter ST just above drawn with shape restriction component 102.Therefore, in casting metal M3, it is prone to surface defect, such as peels off and curling.On the other hand, when the reference temperature solidification equal to or higher than motlten metal M1 completes temperature, the motlten metal M2 being kept is difficult to solidification, even if when the motlten metal M2 being kept contacts with shape restriction component 102, the motlten metal M2 being kept remains difficult to solidification.In addition, when reference temperature equals to or higher than the solidification starting temperature of motlten metal M1, in theory, the motlten metal M2 being kept will not solidify, even if when the motlten metal M2 being kept contacts with shape restriction component 102, the motlten metal M2 being kept still will not solidify.Therefore, reference temperature is preferably equivalent to or higher than solidification starting temperature.
Fig. 4 schematically shows starter ST after the temperature of shape restriction component 102 reaches reference temperature to limit the amplification cross section of the state of component 102 through shape.It is to say, Fig. 4 illustrates the example according to the first illustrative embodiments.As shown in Figure 4, when shape limits the temperature of component 102 higher than reference temperature, preventing the solidification of the motlten metal M2 being kept, the motlten metal M2 being kept and shape owing to following the starter ST just above drawn is limited contacting and occurring between component 102 by solidifying of the motlten metal M2 that otherwise this is kept.
In contrast to this, Fig. 5 schematically shows starter ST before the temperature of shape restriction component 102 reaches reference temperature to limit the amplification cross section of the state of component 102 through shape.It is to say, Fig. 5 illustrates the comparative examples according to the first illustrative embodiments.As shown in Figure 5, when shape limits the temperature of component 102 lower than reference temperature, when the motlten metal M2 being kept following the starter ST just above drawn contacts with low temperature shape restriction component 102, limit at starter ST and shape and the border between component 102 produces coagulated mass M21.
It should be noted that the xyz system shown in Fig. 4 and Fig. 5 is corresponding to the xyz system shown in Fig. 1.
Fig. 6 show shape limit the temperature of component 102 be 650 degrees Celsius its higher than reference temperature time starter ST by draw the microspur photo of state limiting component 102 through shape.It is to say, Fig. 6 illustrates the example according to the first illustrative embodiments.As shown in Figure 6, when shape limits the temperature of component 102 higher than reference temperature, it is therefore prevented that the surface defect in casting metal M3, otherwise this surface defect will appear near the border between starter ST and casting metal M3.
In contrast to this, Fig. 7 show shape limit the temperature of component 102 as 200 degrees Celsius its lower than reference temperature time starter ST by draw the microspur photo of the state limiting component 102 through shape.It is to say, Fig. 7 illustrates the comparative examples according to the first illustrative embodiments.As shown in Figure 7, when shape limits the temperature of component 102 lower than reference temperature, there is surface defect in the casting metal M3 near border between starter ST and casting metal M3, such as peels off and curling.
It follows that the free casting method according to the first illustrative embodiments is illustrated with reference to Fig. 1.
First, reduce starter ST by above drawing machine 108 and make starter ST limit the molten metal passage section 103 of component 102 through shape, and the terminal part (bottom) of starter ST is immersed in motlten metal M1.
It follows that start to draw starter ST at a predetermined rate.Even if it should be noted that when starter ST is pulled away from molten metal surface, motlten metal M1 because of skin covering of the surface and/or surface tension also follow starter ST and from molten metal surface by draw.It is to say, define the motlten metal M2 being kept.As shown in fig. 1, the motlten metal M2 being kept limits in the molten metal passage section 103 of component 102 in shape to be formed.It is to say, the motlten metal M2 being kept is limited component 102 by shape is shaped as given shape.
As it has been described above, according in the free casting method of the first illustrative embodiments, limit after the temperature of component 102 reaches the temperature that the solidification of motlten metal M1 completes temperature or higher in shape, on starting, draw starter ST.Therefore, the solidification of the motlten metal M2 that the solidification of motlten metal M2 being prevented from being kept otherwise is kept will limit contacting and occur between component 102 due to the motlten metal M2 being kept and shape following the starter SY just above drawn, thus preventing surface defect occur in the casting metal M3 near the border between starter ST and casting metal M3.
It follows that due to the cooled gas cooling of starter ST or casting metal M3, the motlten metal M2 being therefore kept indirectly is cooled down and is one after the other solidified from the upside of the motlten metal M2 being kept towards the downside of the motlten metal M2 being kept.As a result, casting metal M3 is defined.In this way it is possible to cast out casting metal M3 continuously.
[modified example of the first illustrative embodiments]
It follows that the free casting device of the modified example according to the first illustrative embodiments is illustrated with reference to Fig. 8 and Fig. 9.Fig. 8 is the plane graph of the shape restriction component 102 of the modified example according to the first illustrative embodiments.Fig. 9 is the side view of the shape restriction component 102 of the modified example according to the first illustrative embodiments.It should be noted that the xyz coordinate system shown in Fig. 8 and Fig. 9 also corresponds to the xyz coordinate system shown in Fig. 1.
The shape according to the first illustrative embodiments shown in Fig. 2 limits component 102 and is made up of one block of plate.Therefore, the thickness t1 and width w1 of molten metal passage section 103 is fixing.In contrast to this, as shown in Figure 8, limit component 102 according to the shape of the modified example of the first illustrative embodiments and include four pieces of rectangular shape limiting plate 102a, 102b, 102c and 102d.It is to say, the shape restriction component 102 according to the modified example of the first illustrative embodiments is divided into multiple section.By this configuration, thus it is possible to vary the thickness t1 and width w1 of molten metal passage section 103.Additionally, described four pieces of rectangular shape limiting plate 102a, 102b, 102c and 102d can synchronously move along the z-axis direction.
As shown in Figure 8, shape limiting plate 102a and 102b is arranged to relative to each other in the y-axis direction.Additionally, as shown in Figure 9, shape limiting plate 102a and 102b is arranged on sustained height place along the z-axis direction.Gap between shape limiting plate 102a and 102b defines the width w1 of molten metal passage section 103.Additionally, due to each shape limiting plate in shape limiting plate 102a and 102b all can independently move along the y-axis direction, therefore width w1 can be changed.
It should be noted that temperature sensor 110 is fixed near molten metal passage section 103 on the top surface of shape limiting plate 102b.
Additionally, as shown in figs. 8 and 9, shape limiting plate 102a and 102b is respectively arranged with laser displacement gauge S1 and laser-bounce plate S2, in order to measure the width w1 of molten metal passage section 103.
Additionally, as shown in Figure 8, shape limiting plate 102c and 102d is arranged to relative to each other in the direction of the x axis.Additionally, shape limiting plate 102c and 102d is arranged on sustained height place along the z-axis direction.Gap between shape limiting plate 102c and 102d defines the thickness t1 of molten metal passage section 103.Additionally, due to each shape limiting plate in shape limiting plate 102c and 102d all can independently move along the x-axis direction, therefore thickness t1 can be changed.
Shape limiting plate 102a and 102b arranges in the way of the top side portion of shape limiting plate 102a and 102b with shape limiting plate 102c and 102d contacts.
It follows that the driving mechanism for shape limiting plate 102a is illustrated with reference to Fig. 8 and Fig. 9.As shown in figs. 8 and 9, sliding stand T1 and T2, Linear guide G11, G12, G21 and G22, actuator A1 and A2 and bar R1 and R2 are included for the driving mechanism of shape limiting plate 102a.It should be noted that, although it is identical with the situation of shape limiting plate 102a, each shape limiting plate in shape limiting plate 102b, 102c and 102d also includes the driving mechanism of described each shape limiting plate, but eliminates the explanation to these driving mechanisms in Fig. 8 and Fig. 9.
As shown in figs. 8 and 9, shape limiting plate 102a arranges and is fixed on sliding stand T1, and this sliding stand T1 can slide along the y-axis direction.Sliding stand T1 is slidably arranged on a pair Linear guide G11 and G12 extended parallel to y-axis direction.Additionally, sliding stand T1 is connected to from the actuator A1 bar R1 extended along the y-axis direction.By above-mentioned configuration, shape limiting plate 102a can slide along the y-axis direction.
Additionally, as shown in figs. 8 and 9, Linear guide G11 and G12 and actuator A1 arranges and is fixed on sliding stand T2, and this sliding stand T2 can slide along the z-axis direction.Sliding stand T2 is slidably arranged on a pair Linear guide G21 and G22 extended parallel to z-axis direction.Additionally, sliding stand T2 is connected to from the actuator A2 bar R2 extended along the z-axis direction.Linear guide G21 and G22 and actuator A2 is fixed on horizontal floor surface or horizontal base (not shown).By above-mentioned configuration, shape limiting plate 102a can slide along the z-axis direction.It should be noted that the example of actuator A1 and A2 includes hydraulic cylinder, cylinder and motor.
[the second illustrative embodiments]
It follows that the free casting device according to the second illustrative embodiments is illustrated with reference to Figure 10.Figure 10 is the amplification cross section of the shape restriction component 202 schematically showing the free casting device according to the second illustrative embodiments.Free casting device according to the second illustrative embodiments is equipped with heating unit (heater) 20, and this heating unit (heater) 20 is arranged on shape and limits component 202 inside.The remainder of this configuration is similar with the remainder of the free casting device according to the first illustrative embodiments.It should be noted that the xyz coordinate system shown in Figure 10 also corresponds to the xyz coordinate system shown in Fig. 1.
Heating unit 20 is arranged in shape and limits the inside of component 202 with around molten metal passage section 103.Therefore, the periphery of molten metal passage section 103 can be heated by heating unit 20 effectively, and the periphery of this molten metal passage section 103 contacts with the motlten metal M2 being kept.Therefore, can increase to reference temperature than the temperature that within the shorter time, shape is limited component 202 according to the free casting device of the first illustrative embodiments according to the free casting device of the second illustrative embodiments.It is to say, the productivity ratio according to the free casting device of the second illustrative embodiments is better according to the productivity ratio of the free casting device of the first illustrative embodiments.Limit the top surface of component 202 it should be noted that heating unit 20 can be arranged in shape rather than be arranged in shape restriction component 202 inside.
It follows that the Control System For Smelting-Casting being arranged on according in the free casting device of the second illustrative embodiments is illustrated with reference to Figure 11.Figure 11 is provided in the block diagram according to the Control System For Smelting-Casting in the free casting device of the second illustrative embodiments.As shown in Figure 11, this Control System For Smelting-Casting include shape limit component 202, on draw machine 108, temperature sensor 110 and casting control unit 111.It should be noted that shape limits component 202 includes heating unit 20.The details that the details that shape limits component 202 limits component 202 with the shape illustrated above by reference to Figure 10 is identical.Additionally, on draw machine 108 and temperature sensor 110 and the first illustrative embodiments drawn machine 108 and temperature sensor 110 is similar, and therefore eliminate the detailed description to them.
Shape is limited component 202 and is heated from beginning through heating unit 20 before drawing motlten metal M1 starting by starter ST by casting control unit 111.Subsequently, when the shape measured by temperature sensor 110 limits the temperature of component 202 lower than reference temperature, casting control unit 111 will not begin through draw machine 108 by starter ST draws and cast control unit 111 continue through heating unit 20 to shape limit component 202 be heated.On the other hand, when the shape measured by temperature sensor 110 limits the temperature of component 202 higher than reference temperature, casting control unit 111 begins through draws machine 108 and will draw on starter ST.Now, casting control unit 111 stops by heating unit 20, shape restriction component 202 being heated.It should be noted that when beginning starter ST draws, it is possible to continue through heating unit 20 and shape restriction component 202 is heated.But, by stopping heating, it is possible to reduce power consumption.
It should be noted that the invention is not restricted to above-mentioned illustrative embodiments, and various remodeling can be made when without departing substantially from the spirit and scope of the present invention.
The application is based on the rights and interests of the Japanese patent application No.2013-244004 submitted on November 26th, 2013 and the priority that requires this patent application, during the disclosure of this application is fully incorporated herein by reference.
Reference numerals list
20 heating units
101 motlten metal holding furnaces
102,202 shapes limit component
102a-102d shape limiting plate
103 molten metal passage sections
104 supporting bars
105 actuators
106 cooling gas nozzles
107 cooling gas supply units
Machine is drawn on 108
110 temperature sensors
111 casting control units
A1, A2 actuator
G11, G12, G21, G22 Linear guide
M1 motlten metal
The motlten metal that M2 is kept
M21 coagulated mass
M3 casts metal
R1, R2 bar
S1 laser displacement gauge
S2 laser-bounce plate
SIF freezing interface
ST starter
T1, T2 sliding stand
Claims (11)
1. a top-guiding type continuous casing, including:
Shape limiting component and is arranged in above the molten metal surface of the motlten metal being held in holding furnace, described shape limits component and is configured to limit the cross sectional shape of casting gold metal products to be cast；
While making starter limit component through described shape, described starter is immersed in described motlten metal；And
After the temperature of described shape restriction component reaches predetermined reference temperature, by making described motlten metal draw described motlten metal on described shape restriction component while described starter draws, wherein,
Described reference temperature completes temperature equal to or higher than the solidification of described motlten metal.
2. top-guiding type continuous casing according to claim 1, wherein, described reference temperature is equal to or higher than the solidification starting temperature of described motlten metal.
3. top-guiding type continuous casing according to claim 1 and 2, wherein, in arranging the step that described shape limits component, makes the bottom side first type surface that described shape limits component contact with described molten metal surface.
4. the top-guiding type continuous casing according to any one in claims 1 to 3, wherein, described shape limits component and includes described shape is limited the heating unit that component itself is heated, and
During making to draw on described motlten metal, described shape limits component by described heating unit heats, until the temperature that described shape limits component reaches described reference temperature.
5. a top-guiding type continuous casting apparatus, including:
Holding furnace, described holding furnace keeps motlten metal；
Shape limits component, and described shape limits component and is arranged in above the molten metal surface of described motlten metal, and described shape limits component and is configured to limit the cross sectional shape of casting gold metal products to be cast；
Temperature sensor, shape described in described temperature sensor measurement limits the temperature of component；
On draw machine, draw machine on described by component drawing described motlten metal by making while starter draws described motlten metal limit through described shape；And
Casting control unit, described casting control unit begin through after the temperature being limited component by the described shape of described temperature sensor measurement reaches predetermined reference temperature described on draw machine carry out on draw, wherein,
Described reference temperature completes temperature equal to or higher than the solidification of described motlten metal.
6. top-guiding type continuous casting apparatus according to claim 5, wherein, described reference temperature is equal to or higher than the solidification starting temperature of described motlten metal.
7. the top-guiding type continuous casting apparatus according to claim 5 or 6, wherein, described temperature sensor is integrally fixed at described shape and limits the contact type temperature sensor on the top side first type surface of component.
8. the top-guiding type continuous casting apparatus according to any one in claim 5 to 7, wherein, described shape limits component and is arranged so that the bottom side first type surface of described shape restriction component contacts with described molten metal surface.
9. the top-guiding type continuous casting apparatus according to any one in claim 5 to 8, wherein, described shape limits component and includes described shape is limited the heating unit that component itself is heated.
10. top-guiding type continuous casting apparatus according to claim 9, wherein, described heating unit is arranged in described shape and limits on the periphery of the molten metal passage section in component, the described motlten metal described molten metal passage section of traverse.
11. the top-guiding type continuous casting apparatus according to claim 9 or 10, wherein, described shape is limited component and is heated by heating unit described in described casting control unit order, reaches described reference temperature until the temperature being limited component by the described shape of described temperature sensor measurement.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-244004 | 2013-11-26 | ||
| JP2013244004A JP2015100819A (en) | 2013-11-26 | 2013-11-26 | Upward continuous casting method and upward continuous casting apparatus |
| PCT/JP2014/077623 WO2015079822A1 (en) | 2013-11-26 | 2014-10-08 | Pulling-up-type continuous casting method and pulling-up-type continuous casting apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105764631A true CN105764631A (en) | 2016-07-13 |
Family
ID=51894175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480064174.2A Pending CN105764631A (en) | 2013-11-26 | 2014-10-08 | Pulling-up-type continuous casting method and pulling-up-type continuous casting apparatus |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20160296999A1 (en) |
| EP (1) | EP3074155A1 (en) |
| JP (1) | JP2015100819A (en) |
| CN (1) | CN105764631A (en) |
| WO (1) | WO2015079822A1 (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59130649A (en) * | 1983-01-14 | 1984-07-27 | O C C:Kk | Method for continuous casting of casting ingot by which sectional shape can be changed in midway of casting and its casting mold |
| JPS59203798A (en) * | 1983-04-30 | 1984-11-17 | Toshiba Corp | Apparatus for preparing belt-shaped silicon crystal |
| US4515204A (en) * | 1982-12-15 | 1985-05-07 | Nippon Light Metal Company Limited | Continuous metal casting |
| CN101528384A (en) * | 2006-08-11 | 2009-09-09 | Rmi钛公司 | Method and apparatus for temperature control in a continuous casting furnace |
| WO2012035752A1 (en) * | 2010-09-17 | 2012-03-22 | Kabushiki Kaisha Toyota Chuo Kenkyusho | Free casting method, free casting apparatus, and casting |
| WO2013136785A1 (en) * | 2012-03-16 | 2013-09-19 | Toyota Jidosha Kabushiki Kaisha | Manufacturing method of casting, manufacturing device thereof, and casting |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007002804A1 (en) * | 2007-01-18 | 2008-07-24 | Sms Demag Ag | Mold wall of a mold for casting a molten metal |
-
2013
- 2013-11-26 JP JP2013244004A patent/JP2015100819A/en active Pending
-
2014
- 2014-10-08 WO PCT/JP2014/077623 patent/WO2015079822A1/en active Application Filing
- 2014-10-08 US US15/037,235 patent/US20160296999A1/en not_active Abandoned
- 2014-10-08 CN CN201480064174.2A patent/CN105764631A/en active Pending
- 2014-10-08 EP EP14796560.2A patent/EP3074155A1/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4515204A (en) * | 1982-12-15 | 1985-05-07 | Nippon Light Metal Company Limited | Continuous metal casting |
| JPS59130649A (en) * | 1983-01-14 | 1984-07-27 | O C C:Kk | Method for continuous casting of casting ingot by which sectional shape can be changed in midway of casting and its casting mold |
| JPS59203798A (en) * | 1983-04-30 | 1984-11-17 | Toshiba Corp | Apparatus for preparing belt-shaped silicon crystal |
| CN101528384A (en) * | 2006-08-11 | 2009-09-09 | Rmi钛公司 | Method and apparatus for temperature control in a continuous casting furnace |
| WO2012035752A1 (en) * | 2010-09-17 | 2012-03-22 | Kabushiki Kaisha Toyota Chuo Kenkyusho | Free casting method, free casting apparatus, and casting |
| WO2013136785A1 (en) * | 2012-03-16 | 2013-09-19 | Toyota Jidosha Kabushiki Kaisha | Manufacturing method of casting, manufacturing device thereof, and casting |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3074155A1 (en) | 2016-10-05 |
| WO2015079822A1 (en) | 2015-06-04 |
| US20160296999A1 (en) | 2016-10-13 |
| JP2015100819A (en) | 2015-06-04 |
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Application publication date: 20160713 |