CN105813780A - Up-drawing continuous casting method, up-drawing continuous casting apparatus, and continuous casting - Google Patents
Up-drawing continuous casting method, up-drawing continuous casting apparatus, and continuous casting Download PDFInfo
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- CN105813780A CN105813780A CN201480068046.5A CN201480068046A CN105813780A CN 105813780 A CN105813780 A CN 105813780A CN 201480068046 A CN201480068046 A CN 201480068046A CN 105813780 A CN105813780 A CN 105813780A
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- hollow member
- motlten metal
- foundry goods
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- guiding type
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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
- B22D11/006—Continuous casting of metals, i.e. casting in indefinite lengths of tubes
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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
- B22D11/0403—Multiple moulds
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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
- B22D11/10—Supplying or treating molten metal
- B22D11/11—Treating the molten metal
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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
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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
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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
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/04—Influencing the temperature of the metal, e.g. by heating or cooling the mould
- B22D27/045—Directionally solidified castings
Abstract
An up-drawing continuous casting method according to the present invention is an up-drawing continuous casting method for forming a casting (M3) having a predetermined shape by drawing up molten metal (Ml) held in a holding furnace (10), and includes: a step of introducing, into the molten metal (Ml), a hollow member (11) configured to draw up the molten metal (Ml),and a step of flowing inert gas into the hollow member (11) so as to pour the inert gas into the molten metal (Ml). The casting (M3) is formed by drawing up the molten metal (Ml) with the hollow member (11) after stopping the flowing of the inert gas into the molten metal (Ml).
Description
Technical field
The present invention relates to top-guiding type continuous casing, top-guiding type continuous casting apparatus and continuous way foundry goods.
Background technology
The open No.2012-61518 (JP2012-61518A) of Japanese Patent application describes the technology that free casting method (top-guiding type continuous casing) that is a kind of and that do not need mould is relevant.In free casting method described in JP2012-61518A, trigger is immersed in the surface (that is, molten metal surface) of motlten metal, and pull-up trigger subsequently is to derive motlten metal.Now, derive motlten metal and subsequently the motlten metal therefore derived cooled down and cast the foundry goods with required cross sectional shape continuously by limiting component via the shape placed near molten metal surface.
In conventional continuous casing, cross sectional shape and the shape both of which on longitudinal direction are determined by mould.Especially, in continuous casing, the metal (that is, foundry goods) of solidification should pass mould so that the foundry goods of casting thus there is the shape extended linearly along the longitudinal direction.On the contrary, in free casting method described in JP2012-61518A, the shape of foundry goods is by determining along the shape restriction component of direction (that is, the horizontal direction) movement parallel with molten metal surface, enabling is formed and has variously-shaped foundry goods in a longitudinal direction.Such as, JP2012-61518A describes a kind of foundry goods formed in a longitudinal direction with saw-toothed shape or spiral in shape.
In free casting method described in JP2012-61518A, the motlten metal derived by pull-up trigger is cooled down by using gaseous coolant.Now, when the flow more increasing gaseous coolant, more improve the cooldown rate of motlten metal, so that improve casting speed.But, the limited flow system of gaseous coolant, therefore improves productivity ratio (that is, casting speed) by the flow of the gaseous coolant in the free casting method of increase correlation technique and there is restriction.
Summary of the invention
The invention provides a kind of top-guiding type continuous casing and a kind of top-guiding type continuous casting apparatus, each in this top-guiding type continuous casing and top-guiding type continuous casting apparatus all can improve productivity ratio.
Top-guiding type continuous casing according to the present invention is the motlten metal for being maintained in holding furnace by pull-up and forms the top-guiding type continuous casing of the foundry goods with reservation shape, and this top-guiding type continuous casing includes: be incorporated in motlten metal by hollow member, and this hollow member is configured to pull-up motlten metal；And make noble gas flow in hollow member to inject inert gas in motlten metal.
Top-guiding type continuous casting apparatus according to the present invention is the top-guiding type continuous casting apparatus for being formed the foundry goods with reservation shape by pull-up motlten metal, and this top-guiding type continuous casting apparatus includes: holding furnace, this holding furnace is configured to keep motlten metal；Hollow member, this hollow member is configured to pull-up motlten metal；Drive division, this drive division be configured to pull-up hollow member with by motlten metal with hollow member pull-up；And gas supply part, this gas supply part is configured to be supplied in hollow member noble gas.
In the top-guiding type continuous casing according to the present invention and top-guiding type continuous casting apparatus, hollow member is used as the component of pull-up motlten metal.Additionally, noble gas flowed through hollow member before hollow member is pulled up from motlten metal so that hollow member is cooled down.Due to so, the heat of the motlten metal being pulled up with hollow member is transferred to hollow member.Therefore, promoted the cooling of the motlten metal being so pulled up, so that increase the pull-up speed of pull-up hollow member and the productivity ratio of foundry goods can be improved.
According to the present invention it is possible to provide a kind of top-guiding type continuous casing and a kind of top-guiding type continuous casting apparatus, each in this top-guiding type continuous casing and top-guiding type continuous casting apparatus all can improve productivity ratio.
Accompanying drawing explanation
Below with reference to accompanying drawings the feature of the illustrative embodiments of the present invention, advantage and technology and industrial significance being described, in the accompanying drawings, similar accompanying drawing labelling represents similar element, and in the accompanying drawings:
Fig. 1 is the sectional view describing the top-guiding type continuous casting apparatus according to embodiment 1；
Fig. 2 A is the sectional view describing the top-guiding type continuous casing according to embodiment 1；
Fig. 2 B is the sectional view describing the top-guiding type continuous casing according to embodiment 1；
Fig. 2 C is the sectional view describing the top-guiding type continuous casing according to embodiment 1；
Fig. 2 D is the sectional view describing the top-guiding type continuous casing according to embodiment 1；
Fig. 2 E is the sectional view describing the top-guiding type continuous casing according to embodiment 1；
Fig. 2 F is the sectional view describing the top-guiding type continuous casing according to embodiment 1；
Fig. 3 is the axonometric chart of the example being shown through the foundry goods that use is formed according to the top-guiding type continuous casing of embodiment 1；
Fig. 4 is the sectional view of the example being shown through the foundry goods that use is formed according to the top-guiding type continuous casing (blow molding) of embodiment 1；
Fig. 5 is the sectional view describing the top-guiding type continuous casting apparatus according to embodiment 2；
Fig. 6 A is the plane graph of the example illustrating that the shape included in the top-guiding type continuous casting apparatus according to embodiment 2 limits component；
Fig. 6 B is the plane graph of another example illustrating that the shape included in the top-guiding type continuous casting apparatus according to embodiment 2 limits component；
Fig. 7 is the axonometric chart of the example of the example being shown through using the layout of hollow member when forming foundry goods according to the top-guiding type continuous casing of embodiment 3 and the foundry goods therefore formed；
Fig. 8 is the axonometric chart of the example of the example being shown through using the layout of hollow member when forming foundry goods according to the top-guiding type continuous casing of embodiment 3 and the foundry goods therefore formed；
Fig. 9 is the axonometric chart of the example of the example being shown through using the layout of hollow member when forming foundry goods according to the top-guiding type continuous casing of embodiment 3 and the foundry goods therefore formed；
Figure 10 is the axonometric chart of the example of the example being shown through using the layout of hollow member when forming foundry goods according to the top-guiding type continuous casing of embodiment 3 and the foundry goods therefore formed；
Figure 11 is the axonometric chart of the example of the example being shown through using the layout of hollow member when forming foundry goods according to the top-guiding type continuous casing of embodiment 3 and the foundry goods therefore formed；
Figure 12 is the axonometric chart of the example of the example being shown through using the layout of hollow member when forming foundry goods according to the top-guiding type continuous casing of embodiment 3 and the foundry goods therefore formed；
Figure 13 is the axonometric chart of the example of the example being shown through using the layout of hollow member when forming foundry goods according to the top-guiding type continuous casing of embodiment 3 and the foundry goods therefore formed；
Figure 14 is the axonometric chart of the example of the example being shown through using the layout of hollow member when forming foundry goods according to the top-guiding type continuous casing of embodiment 3 and the foundry goods therefore formed；
Figure 15 is the axonometric chart of the example of the example being shown through using the layout of hollow member when forming foundry goods according to the top-guiding type continuous casing of embodiment 3 and the foundry goods therefore formed；
Figure 16 is the axonometric chart of the example of the example being shown through using the layout of hollow member when forming foundry goods according to the top-guiding type continuous casing of embodiment 3 and the foundry goods therefore formed；
Figure 17 is the axonometric chart of the example of the example being shown through using the layout of hollow member when forming foundry goods according to the top-guiding type continuous casing of embodiment 3 and the foundry goods therefore formed；
Figure 18 is the axonometric chart of the example of the example being shown through using the layout of hollow member when forming foundry goods according to the top-guiding type continuous casing of embodiment 4 and the foundry goods therefore formed；And
Figure 19 is the axonometric chart of the example of the example being shown through using the layout of hollow member when forming foundry goods according to the top-guiding type continuous casing of embodiment 4 and the foundry goods therefore formed.
Detailed description of the invention
The embodiments of the present invention are described by<embodiment 1>below in reference to accompanying drawing.Fig. 1 is the sectional view describing the top-guiding type continuous casting apparatus according to embodiment 1.Top-guiding type continuous casting apparatus according to present embodiment concurrently forms the foundry goods with reservation shape at pull-up motlten metal.As shown in fig. 1, holding furnace 10, hollow member 11, drive division 13, cooling end 15 and gas supply part 16 are included according to the top-guiding type casting device of present embodiment.
Holding furnace 10 keeps motlten metal M1.Motlten metal M1 is the motlten metal of such as aluminum or aluminum alloy.Motlten metal M1 is maintained at the temperature of more than the fusing point of material or fusing point constituting motlten metal M1 by holding furnace 10.In example in FIG, motlten metal is not added in holding furnace 10 during casting so that the apparent height (that is, molten metal surface) of motlten metal M1 declines along with the carrying out of casting.But, can as required motlten metal be added in holding furnace 10 during casting so that the apparent height of motlten metal keeps constant.Noting, the material constituting motlten metal M1 can be different from the metal or alloy of aluminum.
Hollow member 11 is used for pull-up and is maintained at the motlten metal M1 in holding furnace 10.That is, hollow member 11 is immersed in motlten metal M1 when forming foundry goods.When the hollow member 11 so immersed is pulled up, motlten metal M2 (hereinafter, is referred to as motlten metal M2 from the motlten metal of molten metal surface pull-up) along with hollow member 11 is pulled up.Motlten metal M2 is due to wellability between the skin covering of the surface of motlten metal M2, the surface tension of motlten metal M2, motlten metal M2 and hollow member 11 etc. and along with hollow member 11 is pulled up.Afterwards, the motlten metal M2 of such pull-up is cooled so that form foundry goods M3.Boundary between motlten metal M2 and foundry goods M3 exists solidification boundary SIF.
Hollow member 11 includes hollow bulb 12, and supply passes through this hollow bulb 12 to the inert gas flows of hollow member 11.Hollow member 11 is also used for injecting inert gas in motlten metal M1.Pipe 17 is connected to hollow member 11 via junction surface 18.Pipe 17 is connected to gas supply part 16.It is supplied to motlten metal M1 from the noble gas of gas supply part 16 supply via pipe 17, junction surface 18 and hollow member 11 (hollow bulb 12).Now, the hollow member 11 being immersed in motlten metal M1 is cooled down by the noble gas flowing through hollow member 11.
The shape of hollow member 11 can be determined according to the shape of foundry goods to be formed.That is, hollow member 11 is not limited to rod member, and can be the component with bending section.Additionally, the number of hollow member 11 can be one or more (situation using multiple hollow member will be more particularly described below in embodiment 3).When arranging multiple hollow member, noble gas can be injected in motlten metal M1 via at least one hollow member in multiple hollow member.
Hollow member 11 can be made up of the material identical with the material for motlten metal M1.Such as, when the motlten metal M1 motlten metal of alloy being aluminum or aluminum, the alloy of aluminum or aluminum may be used for hollow member 11.Alternatively, hollow member 11 can be made up of the material different from the material for motlten metal M1.In this case, in order to prevent the hollow member 11 being made up of the material being different from motlten metal M1 to be melted in motlten metal M1, it is preferred that the fusing point constituting the material of hollow member 11 is higher than the fusing point of the material for motlten metal M1.Such as, when aluminum is for motlten metal M1, hollow member 11 can use rustless steel to make.
Drive division 13 makes hollow member 11 move along assigned direction according to the shape of foundry goods M3 to be formed.That is, drive division 13 is constructed to be permeable to make hollow member 11 (direction vertical with the molten metal surface of motlten metal M1) along the vertical direction and mobile along the direction (horizontal direction) parallel with the molten metal surface of motlten metal M1.Additionally, drive division 13 can make hollow member 11 move along the direction of the molten metal surface bevel with motlten metal M1.
When drive division 13 pull-up hollow member 11, motlten metal M2 is pulled up also with hollow member 11.Subsequently, motlten metal M2 is cooled, and therefore forms foundry goods M3.That is, when drive division 13 pull-up hollow member 11 continuously, it is continuously formed foundry goods M3.When the pull-up speed of drive division 13 pull-up hollow member 11 increases, the position of solidification boundary SIF can raise.When pull-up speed reduces, the position of solidification boundary SIF can reduce.Now, drive division 13 can control the pull-up speed of pull-up hollow member 11 according to the shape of foundry goods M3 to be formed.
Cooling end (cooling nozzle) 15 is structured to by the gaseous coolant supplied from gaseous coolant supply unit (not shown) (air, nitrogen, argon etc.) is injected in the chiller cooling down foundry goods M3 on foundry goods M3.When the flow of gaseous coolant increases, the position of solidification boundary SIF reduces, and when the flow of gaseous coolant reduces, the position of solidification boundary SIF raises.Herein, owing to motlten metal M2 does not solidify, if gaseous coolant injects directly on motlten metal M2, then gaseous coolant makes motlten metal M2 fluctuate, and the dimensional accuracy and the surface quality that thus result in foundry goods reduce.In consideration of it, gaseous coolant is injected on solidification foundry goods M3 soon by cooling end 15, in order to cooling molten metal M2 indirectly.Be to be noted that cooling end 15 position can in the horizontal direction or above-below direction move to given position.
Gas supply part 16 is connected to hollow member 11 (hollow bulb 12) via pipe 17 and junction surface 18.Gas supply part 16 supplies noble gas with predetermined flow to hollow member 11.Such as, gas supply part 16 is constructed to be permeable to regulate the amount of the noble gas of supply.Owing to hollow member 11 is cooled down by the noble gas flowing through it, the temperature (especially, the temperature when hollow member 11 is immersed in motlten metal M1 of hollow member 11) of hollow member 11 therefore can be controlled by regulating the flow of noble gas.Now, gas supply part 16 can control to flow through the flow of the noble gas of hollow member 11 according to the shape of foundry goods to be formed.Such as, nitrogen (N2), argon (Ar) etc. can serve as noble gas.
The flow of the operation of drive division 13, the flow from cooling end 15 expellant gas coolant and the noble gas from gas supply part 16 supply is by using control device (not shown) to control.That is, top-guiding type continuous casting apparatus can be formed and have to the foundry goods of shaped by controlling these parameters.
Referring next to Fig. 2 A to Fig. 2 F, the top-guiding type continuous casing according to present embodiment is described.As shown in Figure 2 A, first pass through use junction surface 18 and pipe 17 is fixed to hollow member 11.Additionally, hollow member 11 is fixed to drive division 13.Subsequently, as shown in Figure 2 B, hollow member 11 is made to introduce (immersion) to motlten metal M1 by making hollow member 11 move down while discharging from hollow member 11 at noble gas 21.When hollow member 11 arrives target location (that is, hollow member 11 arrives desired depth) in motlten metal M1, hollow member 11 stops moving down.After hollow member 11 stops moving down, noble gas 21 discharges the predetermined time from hollow member 11, as shown in FIG. 2 C.Noble gas 21 thus be injected in motlten metal M1 via hollow member 11 so that motlten metal M1 can be cleaned.I.e., it is possible to remove the impurity (hydrogen etc.) of defect (pore) that is that comprise in motlten metal M1 and that cause foundry goods.
Afterwards, as illustrated in fig. 2d, stop discharging noble gas from hollow member 11.Subsequently, as shown in fig. 2e, by using drive division 13 by hollow member 11 pull-up.Now, also begin to spray gaseous coolant from cooling end 15.When hollow member 11 is pulled up, motlten metal M2 is also pulled up with hollow member 11.Subsequently, the motlten metal M2 of such pull-up is by the gaseous coolant cooling sprayed from cooling end 15, and therefore forms foundry goods M3.By using drive division 13 pull-up hollow member continuously 11, so it is continuously formed foundry goods M3.
Now, motlten metal M2 cools down indirectly via foundry goods M3.That is, it is injected on solidification foundry goods M3 soon from the gaseous coolant of cooling end 15 to cool down foundry goods M3 so that the heat of motlten metal M2 is transferred to the foundry goods M3 of so cooling.Therefore, motlten metal M2 is cooled.In addition, in the top-guiding type continuous casing according to present embodiment, hollow member 11 was being flowed through hollow member 11 (referring to Fig. 2 C) by noble gas 21 before motlten metal M1 pull-up so that the hollow member 11 being immersed in motlten metal M1 is cooled down.Owing to so, being transferred to foundry goods M3 with the heat of the motlten metal M2 of hollow member 11 pull-up and also being transferred to hollow member 11.Therefore, promoted the cooling of motlten metal M2, so that the pull-up speed of pull-up hollow member 11 can be increased and can improve the productivity ratio of foundry goods.
That is, when the cooling of motlten metal M2 is promoted, the position that solidification boundary SIF is the boundary between motlten metal M2 and foundry goods M3 reduces.Owing to the position of solidification boundary SIF reduces, therefore drive division 13 can increase the pull-up speed of pull-up hollow member 11 according to the slippage of the position of solidification boundary SIF, so that accelerate casting speed.
Afterwards, hollow member 11 is kept pull-up, and near the molten metal surface of the slightly end 19 arrival motlten metal M1 of hollow member 11 time (may be located on molten metal surface), as shown in figure 2f, injects inert gas in hollow member 11.When noble gas is injected in hollow member 11 like this, it is possible to prevent the slightly end 19 of hollow member 11 to be closed.
Fig. 3 illustrates the example of the foundry goods formed by using the top-guiding type continuous casing that is outlined above.Foundry goods 30 shown in Fig. 3 is configured so that foundry goods 31 (corresponding to foundry goods M3) is set in hollow member 11 (being illustrated by the broken lines) around.The hollow bulb 12 of hollow member 11 does not disappear, but still exists.The foundry goods 30 being to be noted that in Fig. 3 illustrates the shape obtained by cutting away the top (part that foundry goods M3 does not solidify) of hollow member 11 after forming foundry goods.
It is to be noted that the top-guiding type continuous casing being outlined above is example, is not limited to example described above according to the top-guiding type continuous casing of present embodiment.Such as, (referring to Fig. 2 A) before hollow member 11 is immersed in motlten metal M1, noble gas 21 can flow through hollow member 11 so that hollow member 11 is cooled to predetermined temperature in advance.
Additionally, in fig. 2b, hollow member 11 is contemporaneously immersed in motlten metal M1 from what hollow member 11 was discharged at noble gas 21.But, when hollow member 11 is immersed in motlten metal M1, it is possible to stop discharging noble gas 21 from hollow member 11.Additionally, when hollow member 11 noble gas 21 discharge when being contemporaneously immersed in motlten metal M1, it is convenient to omit stop moving down in hollow member 11 and discharge noble gas (referring to Fig. 2 C) afterwards.Furthermore, it is possible to omit the step injected inert gas near the molten metal surface of motlten metal M1 in hollow member 11 as shown in figure 2f.
Additionally, the situation that the top-guiding type continuous casing being outlined above still suffers from after foundry goods is formed for hollow bulb 12.But, in the top-guiding type continuous casing according to present embodiment, hollow bulb 12 can disappear after foundry goods is formed.Such as, in the step illustrated in fig. 2 c, when hollow member 11 is maintained at a period of time motlten metal M1 after noble gas stops from the discharge of hollow member 11, a part for hollow member 11 starts fusing.When pull-up hollow member 11 after this, it is possible to form the foundry goods not having hollow bulb 12.
In the top-guiding type continuous casing according to present embodiment, even at when using identical hollow member 11, the shape of casting speed and foundry goods according to hollow member 11 be maintained at the time in motlten metal M1, motlten metal M1 thermal capacitance, flow through the flow (cooling capacity) etc. of the noble gas of hollow member 11 and change.Such as, when the time that hollow member 11 is maintained in motlten metal M1 is shorter, or when the thermal capacitance of motlten metal M1 is less, or when flowing through the flow of noble gas of hollow member 11 and being bigger, the temperature of hollow member 11 reduces and casting speed is accelerated.
In addition, in the top-guiding type continuous casing according to present embodiment, (referring to Fig. 2 F) time (may be located on molten metal surface) near the molten metal surface that hollow member 11 arrives motlten metal M1, it is possible to inject inert gas in hollow member 11 to perform blow molding.Fig. 4 is the sectional view of the example being shown through the foundry goods that blow molding obtains.Foundry goods 30 ' shown in Fig. 4 is configured so that foundry goods 32 (corresponding to foundry goods M3) is set in around hollow member 11.Additionally, due to perform blow molding when forming foundry goods 30 ', in the slightly end of hollow member 11, therefore form spherical spaces 33.That is, foundry goods M3 inflation is formed by the chondritic formed in the slightly end of hollow member 11 by using noble gas.
In free casting method described in JP2012-61518A, the motlten metal derived by pull-up trigger is cooled down by using gaseous coolant.Now, when the flow more increasing gaseous coolant, more improve the cooldown rate of motlten metal, so that accelerate casting speed.But, due to the limited flow system of gaseous coolant, therefore improve productivity ratio (that is, casting speed) by the flow of the gaseous coolant in the free casting method of increase correlation technique and there is restriction.
In consideration of it, in the present embodiment, hollow member 11 is used as the component of pull-up motlten metal M1.Additionally, noble gas flowed through hollow member 11 in hollow member 11 before motlten metal M1 pull-up so that hollow member 11 is cooled down.Owing to so, being transferred to foundry goods M3 with the heat of the motlten metal M2 of hollow member 11 pull-up and being transferred to hollow member 11.Therefore, promoted the cooling of motlten metal M2, so that increase the pull-up speed of pull-up hollow member 11 and the productivity ratio of foundry goods can be improved.
Additionally, in the present embodiment, noble gas was injected into motlten metal M1 via hollow member 11 before motlten metal M1 pull-up in hollow member 11.Therefore, the impurity (hydrogen etc.) that comprises in motlten metal M1, the defect (pore) causing foundry goods impurity all can be removed, and therefore motlten metal M1 can be cleaned.This quality allowing to improve foundry goods to be formed.
Next embodiments of the present invention 2 will be described by<embodiment 2>.Fig. 5 is the sectional view describing the top-guiding type continuous casting apparatus according to embodiment 2.Top-guiding type continuous casting apparatus shown in Fig. 5 and the top-guiding type continuous casting apparatus (referring to Fig. 1) described in embodiment 1 are different in that being provided with shape limits component 25.Except above a bit except, the top-guiding type continuous casting apparatus of embodiment 2 is identical with the top-guiding type continuous casting apparatus described in embodiment 1, and therefore same accompanying drawing labelling is assigned to same composition part and eliminates repetitive description.
It is such as lower member that shape limits component 25, this component is configured by the shape (cross sectional shape) that motlten metal M1 applying external force (that is, acting on the power on motlten metal M1 when motlten metal M1 traverse motlten metal is by portion 26) limits foundry goods M3 when motlten metal M1 is pulled up to be formed foundry goods M3 with hollow member 11.Shape limits component 25 and is made up of such as pottery or rustless steel, and places near molten metal surface.In the example that figure 5 illustrates, shape restriction component 25 is positioned so that the principal plane (bottom surface) of the following side of shape restriction component 25 contacts with molten metal surface.Owing to the bottom surface of shape restriction component 25 contacts with molten metal surface, the oxide-film being formed on the surface of motlten metal M1 and the foreign body swum on the surface of motlten metal M1 therefore it is possible to prevent to be mixed in foundry goods M3.Being to be noted that in the present embodiment, shape limits component 25 and may be positioned such that shape limits the bottom surface relative with molten metal surface (that is, the bottom surface of shape restriction component 25 is spaced apart with molten metal surface) of component 25.
Fig. 6 A is the plane graph of the example illustrating that shape limits component 25.Herein, the shape in Fig. 5 limits the sectional view of component 25 corresponding to the sectional view intercepted of the line V-V along Fig. 6 A.As shown in FIG, shape limits component 25 and has the shape of such as rectangle plane, and having rectangular aperture (motlten metal pass through portion 26) in the central portion, the length of this rectangular aperture is w × t and this rectangular aperture is configured so that motlten metal extends there through.
As shown in Figure 5, motlten metal M1 is pulled up with hollow member 11, and limits the motlten metal of component 25 by portion 26 through shape.That is, when motlten metal M1 limits the motlten metal of component 25 by portion 26 through shape, limit component 25 by shape and motlten metal M1 is applied external force so that the cross sectional shape of foundry goods M3 is defined.
Being to be noted that the shape shown in Fig. 6 A limits component 25 is an example, and in the present embodiment, the shape restriction component with other shapes can serve as shape restriction component.Such as, shape limits the shape of the opening (motlten metal is by portion 26) of component and is not limited to rectangle, and can be other shapes of such as circle, ellipse, polygon etc.That is, the shape of the opening (motlten metal is by portion 26) that shape limits component can be defined as to shaped according to the cross sectional shape (horizontal cross-section) of foundry goods to be formed.
Fig. 6 B is the plane graph of another example illustrating that shape limits component.Shape shown in Fig. 6 A limits component 25 and is made up of single plate, and therefore motlten metal is fixing by the length w of each side, the t in portion 26.On the other hand, including four rectangular shape limiting plate 27_1 to 27_4 owing to the shape shown in Fig. 6 B limits component 25 ', therefore motlten metal can be changed by the length w of each side, the t in portion 28.
As depicted in figure 6b, shape limiting plate 27_1,27_2 are positioned to horizontal direction (horizontal direction in the sectional view of Fig. 5) on paper above toward each other.The horizontal direction being constructed to be permeable to along paper due to shape limiting plate 27_1,27_2 moves independently of one another, and therefore motlten metal can be changed to given length by the length w in portion 28.Similarly, shape limiting plate 27_3,27_4 are positioned to above-below direction (depth direction in the sectional view of Fig. 5) on paper above toward each other.The above-below direction being constructed to be permeable to along paper due to shape limiting plate 27_3,27_4 moves independently of one another, and therefore motlten metal can be changed to given length by the length t in portion 28.Shape limiting plate 27_3,27_4 are positioned to contact with the upper lateral part of shape limiting plate 27_1,27_2.
Can be changed by the length w of each side, the t in portion 28 owing to limiting motlten metal in component 25 ' in shape as depicted in figure 6b, therefore can freely limit the cross sectional shape of foundry goods to be formed.When drive division 13 pull-up hollow member continuously 11, such as, when mobile shape limit the shape limiting plate 27_1 to 27_4 of component 25 ' with changes motlten metal and passes through portion 28 the length w of each side, t time, the cross sectional shape of foundry goods M3 can change continuously.
As described above, in the top-guiding type continuous casing according to present embodiment, owing to passing through to use shape to limit component to motlten metal M1 applying external force, therefore the cross sectional shape of foundry goods M3 can be defined as to shaped.That is, in embodiment 1, the shape (cross sectional shape) of foundry goods to be formed is limited by the flow (that is, the cooling degree of hollow member 11) of the shape of hollow member 11 with the noble gas flowing through hollow member 11.By contrast, in the top-guiding type continuous casing according to present embodiment, the cross sectional shape of foundry goods is except by the shape of hollow member 11 with except flowing through the flow restriction of noble gas of hollow member 11, it is also possible to limit by using shape to limit component.Therefore, it can be formed accurately foundry goods.
Additionally, in the present embodiment, similar with embodiment 1, hollow member 11 is also used for pull-up motlten metal M1, therefore can improve the productivity ratio of foundry goods.Additionally, noble gas was injected into motlten metal M1 via hollow member 11 before motlten metal M1 pull-up in hollow member 11.This allows to cleaning motlten metal M1 and can improve the quality of foundry goods to be formed.
Next embodiments of the present invention 3 will be described by<embodiment 3>.Embodiment 1,2 is for passing through to use the situation of a hollow member formation foundry goods.Embodiment 3 is for passing through to use the situation of multiple hollow member formation foundry goods.Being to be noted that following exemplary foundry goods is example, having other variously-shaped foundry goods can be formed with the top-guiding type continuous casing according to the present invention.It is to be noted that with top-guiding type continuous casting apparatus in the present embodiment identical with such as top-guiding type continuous casting apparatus described in embodiment 1,2, therefore eliminates repetitive description.
Fig. 7 to Figure 17 is the axonometric chart being each shown in the example by using the example of layout forming hollow member during foundry goods according to the top-guiding type continuous casing of present embodiment and the foundry goods so formed.Such as, multiple hollow member may be positioned so that (referring to Fig. 7, Fig. 8, Figure 13, Figure 16, Figure 17) separated from one another, or may be positioned so that (Fig. 9 to Figure 12, Figure 14) contacting one another.Additionally, multiple hollow member can place (Fig. 7 to Figure 12, Figure 16) as the crow flies, or can annularly place (Figure 13, Figure 14, Figure 17).With multiple hollow member, the hollow member (referring to Figure 16) that thickness is different from each other therefore can be used.With multiple hollow member, the hollow member (referring to Figure 17) that length is different from each other therefore can be used.Hereafter by by using the situation that multiple hollow member form foundry goods to be more particularly described.
Fig. 7 is for describing the view of the situation by using multiple (two) hollow member formation foundry goods.As shown in Figure 7, two hollow member 41_1,41_2 include hollow bulb 42_1,42_2 respectively.The two hollow member 41_1,41_2 are positioned to be separated from each other.
When forming foundry goods, first the pipe 17 of supply noble gas is fixed to hollow member 41_1,41_2, and it addition, hollow member 41_1,41_2 is fixed to drive division 13 (referring to Fig. 2 A).After this, by making hollow member 41_1,41_2 move down and make hollow member 41_1,41_2 be immersed in motlten metal M1 (referring to Fig. 2 B) while discharging from hollow member 41_1,41_2 at noble gas.After this, when hollow member 41_1,41_2 arrive the target location in motlten metal M1, hollow member 41_1,41_2 stop moving down, and make noble gas 21 discharge the scheduled time (referring to Fig. 2 C) from hollow member 41_1,41_2.
After this, stop discharging noble gas (referring to Fig. 2 D) from hollow member 41_1,41_2, and hollow member 41_1,41_2 are pulled up (referring to Fig. 2 E).Now, also begin to spray gaseous coolant from cooling end 15.As pull-up hollow member 41_1,41_2, motlten metal M2 is also pulled up with hollow member 41_1,41_2.Subsequently, the motlten metal M2 of such pull-up is by the gaseous coolant cooling sprayed from cooling end 15, and therefore forms foundry goods.
When shown in the figure 7, two hollow member 41_1,41_2 are positioned to separated from one another.Therefore, as pull-up two hollow member 41_1,41_2, motlten metal M2 is retained in around hollow member 41_1,41_2 and between hollow member 41_1 and hollow member 41_2 due to the surface tension of motlten metal M2.Therefore, the foundry goods so formed has two hollow member 41_1,41_2 by foundry goods 43 around with shape integral with one another.
When shown in the figure 7, owing to two hollow member 41_1,41_2 are positioned to only preset distance separated from one another, therefore the side surface of the foundry goods 43 between hollow member 41_1 and hollow member 41_2 is recessed (that is, foundry goods 43 includes recess 44).Meanwhile, being positioned to as shown in Figure 8 near each other at the two hollow member 41_1,41_2, the side surface of the foundry goods 45 between hollow member 41_1 and hollow member 41_2 has smooth shape (or the shape close to even shape).
When two hollow member 41_1,41_2 are positioned to separated from one another like this, motlten metal M2 can be retained in the space between hollow member 41_1 and hollow member 41_2 so that can form the foundry goods with large volume when the number of empty component on the decrease.
Fig. 9 is for describing the view of the situation by using multiple (five) hollow member formation foundry goods.As shown in Figure 9, five hollow member 51 each all include hollow bulb 52.These five hollow member 51 are positioned to contact with each other as the crow flies.It should be noted that the mode forming foundry goods is identical with method as described herein above, therefore eliminate repetitive description.
When shown in fig .9, when five hollow member 51 of pull-up, motlten metal M2 is retained in around hollow member 51 due to the surface tension of motlten metal M2.Therefore, the foundry goods being consequently formed has five hollow member 51 by foundry goods 53 around with shape integral with one another.
When shown in fig .9, five hollow member 51 of pull-up spend time enough, and therefore the side surface of foundry goods 53 has smooth shape (or the shape close to even shape).Meanwhile, when the pull-up speed of five hollow member 51 of pull-up, motlten metal solidifies, and without making motlten metal M2 be sufficiently retained in around hollow member 51, therefore, the foundry goods being consequently formed has shape as shown in Figure 10.That is, foundry goods has following shape: the side surface of foundry goods 54 is irregular, i.e. foundry goods has the shape of the periphery following hollow member 51.
Additionally, when the pull-up speed of pull-up hollow member 51 slows down in the midway of pull-up, it is possible to form the foundry goods that hollow bulb 52 is closed in the lower half of foundry goods 55, as shown in figure 11.That is, when the pull-up speed of pull-up hollow member 51 slows down in the midway of pull-up, the lower half of hollow member 51 begins in motlten metal M1 melts, and therefore hollow bulb 52 can be closed in the lower half of foundry goods 55.Therefore, in the present embodiment, the pull-up speed of pull-up hollow member 51 is controlled by the shape according to foundry goods to be formed when pull-up hollow member 51, it is possible to formed and have to the foundry goods of shaped.It should be noted that the wellability etc. that pull-up speed when forming foundry goods is considered that between the motlten metal of use and hollow member determines.
Additionally, in the present embodiment, noble gas can flow through at least one hollow member in multiple hollow member.Namely, it is not necessary that make inert gas flows by all hollow member.Such as, as shown in Figure 12, when inert gas flows is by four hollow member 51_1,51_2,51_4,51_5 in the middle of five hollow member 51_1 to 51_5, the temperature not having the hollow member 51_3 that inert gas flows passes through raises in the molten metal so that hollow member 51_3 starts to melt in the molten metal.Therefore, as shown in Figure 12, the foundry goods 56 being consequently formed has the shape not forming hollow bulb 52_3.Owing to inert gas flows is by four hollow member 51_1,51_2,51_4,51_5, therefore hollow bulb 52_1,52_2,52_4,52_5 is not closed.
Figure 13 describes the view by multiple hollow member are placed the situation forming foundry goods in ringwise mode.As shown in Figure 13, multiple hollow member 61 are placed in ringwise mode.Additionally, also place hollow member 61 in central part.Multiple hollow member 61 each include hollow bulb 62.It should be noted that the mode forming foundry goods is identical with method as described herein above, therefore eliminate repetitive description.
When shown in fig. 13, when the multiple hollow member 61 of pull-up, motlten metal M2 is retained in around hollow member 61 due to the surface tension of motlten metal M2.Therefore, the foundry goods being consequently formed has the hollow member 61 placed in ringwise mode by foundry goods 63 around with shape integral with one another.Now, hollow bulb 62 is not closed, and therefore foundry goods 63 has honeycomb shape.When shown in being to be noted that in fig. 13, hollow member is positioned to separated from one another, but hollow member may be positioned so that contacting one another.
Figure 14 describes multiple hollow member 61 to be placed in ringwise mode and do not place the view of the situation of any hollow member in central part.When shown in fig. 14, when the multiple hollow member 61 of pull-up, motlten metal M2 is retained in around hollow member 61.Therefore, the foundry goods being consequently formed has the hollow member 61 placed in ringwise mode by foundry goods 64 around with shape integral with one another.Additionally, in this case, in the central part of annular, hollow member is not placed so that do not have motlten metal M2 to be retained in the central part of annular.Therefore, the central part of foundry goods 64 forms chamber 65.
When shown in fig. 14, the multiple hollow member 61 of pull-up spends time enough, and therefore the side surface of foundry goods 64 has smooth shape (or the shape close to flat form).Meanwhile, when the pull-up speed of the multiple hollow member 61 of pull-up, motlten metal solidifies, and without making motlten metal M2 be sufficiently retained in around hollow member 61, therefore, the foundry goods being consequently formed has shape as shown in Figure 15.That is, foundry goods has following shape: the outer surface of foundry goods 66 and inner peripheral surface (surface of side, chamber 67) are all irregular, and in other words, foundry goods 66 has the shape of the periphery following hollow member 61.It is to be noted that hollow member is positioned to contacting one another when shown in Figure 14, Figure 15, but hollow member may be positioned so that separated from one another.
Figure 16 is the view describing the thickness of multiple hollow member situation different from each other.As shown in Figure 16, hollow member 71_1,71_2 thickness different from each other.That is, the thickness of the hollow member 71_1 thickness more than hollow member 71_2.Multiple hollow member 71_1,71_2 include hollow bulb 72_1,72_2 respectively.It should be noted that the mode forming foundry goods is identical with method as described herein above, therefore eliminate repetitive description.
In the situation shown in figure 16, hollow member 71_1,71_2 thickness different from each other.Therefore, as pull-up hollow member 71_1,71_2, hollow member 71_1,71_2 the shape that cross sectional shape (shape of horizontal cross-section) is the cross sectional shape following hollow member 71_1,71_2 of the motlten metal M2 retained.That is, the cross sectional shape of motlten metal M2 is followed the periphery by two hollow member and connects the shape that the tangent line of periphery (two circles) limits.Therefore, the foundry goods being consequently formed has following shape: different hollow member 71_1, the 71_2 of thickness each other by foundry goods 73 around with integral with one another.
Figure 17 is the view describing the length of multiple hollow member situation different from each other.As shown in Figure 17, the hollow member 81_1 placed in ringwise mode is different from each other with the length of the hollow member 81_2 being placed in annular central portion.That is, the length of the hollow member 81_2 length more than hollow member 81_1.Multiple hollow member 81_1,81_2 include hollow bulb 82_1,82_2 respectively.It should be noted that the mode forming foundry goods is identical with the mode being outlined above, therefore eliminate repetitive description.
In fig. 17 shown in when, hollow member 81_1,81_2 length different from each other.Therefore, as pull-up hollow member 81_1,81_2, hollow member 81_1,81_2 the cross sectional shape (shape of horizontal cross-section) of the motlten metal M2 retained changes along the longitudinal direction of hollow member 81_1,81_2.That is, hollow member 81_1 is placed in region 83 in ringwise mode, and hollow member 81_2 is placed in the central part of annular.Therefore, hollow member 81_1,81_2 the motlten metal M2 cross sectional shape in region 83 retained hollow member 81_1,81_2 longitudinal direction on be substantially uniform circle.Owing to so, the part corresponding to region 83 of foundry goods 85 has cylindrical shape 86.
Meanwhile, in region 84, a hollow member 81_2 goes out from the slightly distal process of the downside of the hollow member 81_1 placed in ringwise mode.Therefore, hollow member 81_1,81_2 the motlten metal M2 retained cross sectional shape in region 84 is the circle that diameter upside from region 84 reduces towards downside.Due to so, the part corresponding to region 84 of foundry goods 85 has substantially shape 87 (that is, the shape of convergent) in cone.
The every kind of layout that it should be noted in the layout of the hollow member being outlined above is only example, and the layout of hollow member can be determined according to the shape of the foundry goods treated with the top-guiding type continuous casing formation according to the present invention.Additionally, the exemplary arrangement being outlined above can be combined as.Such as, the thickness of multiple hollow member can different from each other and its length can also be different from each other.
Next embodiments of the present invention 4 will be described by<embodiment 4>.Embodiment 4 is for the situation arranging releasing agent at least some of in hollow member.It should be noted that the top-guiding type continuous casting apparatus used in the present embodiment is identical with the top-guiding type continuous casting apparatus described in embodiment 1,2, therefore eliminate repetitive description.
Figure 18 is the axonometric chart being shown in the example by using the example of layout forming hollow member during foundry goods according to the top-guiding type continuous casing of present embodiment and the foundry goods so formed.As shown in Figure 18, two hollow member 101_1,101_2 are positioned to separated from one another.Additionally, two hollow member 101_1,101_2 include hollow bulb 102_1,102_2 respectively.Being positioned on a side surface of the side contrary with the side towards hollow member 101_2 and releasing agent 103_1 be set in the side surface of hollow member 101_1.Similarly, being positioned on a side surface of the side contrary with the side towards hollow member 101_1 and releasing agent 103_2 be set in the side surface of hollow member 101_2.For releasing agent, for instance boron nitride (BN) can be used.The thickness of the film of releasing agent can be such as about 2 μm to 10 μm.It should be noted that the thickness of film of the material for releasing agent and releasing agent is an example, and they are not limited to above.
When forming foundry goods, first the pipe 17 of supply noble gas is fixed to hollow member 101_1,101_2, and it addition, hollow member 101_1,101_2 is fixed to drive division 13 (referring to Fig. 2 A).After this, by making hollow member 101_1,101_2 move down and make hollow member 101_1,101_2 be immersed in motlten metal M1 (referring to Fig. 2 B) while discharging from hollow member 101_1,101_2 at noble gas.After this, when hollow member 101_1,101_2 arrive the target location in motlten metal M1, hollow member 101_1,101_2 stop moving down, and make noble gas discharge the scheduled time (referring to Fig. 2 C) from hollow member 101_1,101_2.
After this, stop discharging noble gas (referring to Fig. 2 D) from hollow member 101_1,101_2, and hollow member 101_1,101_2 are pulled up (referring to Fig. 2 E).Now, also begin to spray gaseous coolant from cooling end 15.As pull-up hollow member 101_1,101_2, motlten metal M2 is also pulled up with hollow member 101_1,101_2.Subsequently, the motlten metal M2 of such pull-up is by the gaseous coolant cooling sprayed from cooling end 15, and therefore forms foundry goods.
When shown in figure 18, hollow member 101_1,101_2 are each provided with releasing agent.Due to so, hollow member 101_1,101_2 the side surface being provided with releasing agent 103_1,103_2 on do not form foundry goods (even if or be formed with foundry goods, foundry goods still can remove) from side surface.Therefore, the foundry goods 104 being consequently formed has the shape of the external shape following hollow member 101_1,101_2.
By arranging releasing agent like this in a part for hollow member, it is possible to limit the shape of foundry goods to be formed.Additionally, by arranging releasing agent in a part for hollow member, it is possible to suppress the fusing of hollow member.Additionally, when the material of hollow member and the material of motlten metal are different, it is possible to the electrolytic etching of hollow member is suppressed by arranging releasing agent in hollow member.
Figure 19 is the axonometric chart being shown in the example by using the example of layout forming hollow member during foundry goods according to the top-guiding type continuous casing of present embodiment and the foundry goods so formed.As shown in Figure 19, two hollow member 111_1,111_2 are positioned to separated from one another.Additionally, the two hollow member 111_1,111_2 include hollow bulb 112_1,112_2 respectively.Releasing agent 113a and releasing agent 113b it is respectively arranged with around the upper lateral part of hollow member 111_1 and around following side.Releasing agent 113c and releasing agent 113d it is respectively arranged with around the upper lateral part of hollow member 111_2 and around following side.The part represented by accompanying drawing labelling 114_1,114_2 is the part (part that hollow member exposes) being not provided with releasing agent.
When by using hollow member 111_1, the 111_2 shown in the upper left side of Figure 19 to form foundry goods, form the foundry goods 115 of the shape shown in upper right side with Figure 19.In this case, hollow member 111_1,111_2 those the part 114_1, the 114_2 that are not provided with releasing agent 113a to 113d in, foundry goods 115 is integral with hollow member 111_1,111_2.Meanwhile, hollow member 111_1,111_2 those parts being provided with releasing agent 113a to 113d in, foundry goods 115 and hollow member 111_1,111_2 do not have integral, and therefore foundry goods 115 can separate with hollow member 111_1,111_2.
Therefore, as shown in the downside of Figure 19, the top 118a and bottom 118b of hollow member 111_1 can separate with foundry goods 115.Similarly, the top 118c and bottom 118d of hollow member 111_2 can separate with foundry goods 115.That is, in the example shown in Figure 19, those parts being provided with releasing agent of hollow member can separate with foundry goods after foundry goods is formed.
By arranging releasing agent like this in hollow member, it is possible to formed and there is variously-shaped foundry goods.Especially, by by present embodiment and embodiment 3 (being placed with the embodiment of multiple hollow member) combination, it is possible to formed and there is variously-shaped foundry goods.
By using matrix that the foundry goods that the top-guiding type continuous casing described in embodiment 1 to 4 is formed includes having the unidirectional solidification structure extended along the longitudinal direction and the hollow member extended along the longitudinal direction as two-phase body.For this cause, foundry goods has fabulous longitudinal strength.Now, multiple hollow member can include in foundry goods as hollow member.Additionally, hollow member can be made up of the material identical with the material constituting matrix.Additionally, hollow member can be made up of the material different from the material constituting matrix.In this case, the fusing point constituting the material of hollow member is higher than the fusing point of the material constituting matrix.
Describe the present invention according to embodiment of above, but the invention is not restricted to the configuration of embodiment of above, and include various replacement schemes, remodeling and the combination made in the scope according to claim invention defined by those skilled in the art.
Claims (16)
1. a top-guiding type continuous casing, described top-guiding type continuous casing forms the foundry goods with reservation shape for being maintained at the motlten metal in holding furnace by pull-up, and described top-guiding type continuous casing includes:
Hollow member being incorporated in described motlten metal, described hollow member is configured to motlten metal described in pull-up；And
Noble gas is made to flow in described hollow member to be injected in described motlten metal by described noble gas.
2. top-guiding type continuous casing according to claim 1, described top-guiding type continuous casing also includes:
By making described noble gas, after flowing in described motlten metal, with described hollow member pull-up, described motlten metal be formed described foundry goods in stopping.
3. top-guiding type continuous casing according to claim 1 and 2, described top-guiding type continuous casing also includes:
Multiple hollow member are incorporated in described motlten metal；And
Described noble gas is made to flow at least one hollow member in the plurality of hollow member to be injected in described motlten metal by described noble gas.
4. the top-guiding type continuous casing according to any one in claims 1 to 3, wherein:
Described hollow member at least some of in be provided with releasing agent.
5. top-guiding type continuous casing according to claim 4, described top-guiding type continuous casing also includes:
The described foundry goods that the described part being provided with releasing agent of described hollow member is formed with the solidification by described motlten metal is made to separate.
6. the top-guiding type continuous casing according to any one in claim 1 to 5, described top-guiding type continuous casing also includes:
When described hollow member is pulled up, gaseous coolant is injected on the described motlten metal being pulled up with described hollow member.
7. the top-guiding type continuous casing according to any one in claim 1 to 6, wherein:
Described hollow member is immersed in described motlten metal,
When the described hollow member that pull-up has been immersed, described motlten metal is pulled up with described hollow member, and described motlten metal due to the skin covering of the surface of described motlten metal, described motlten metal surface tension and described motlten metal and described hollow member between wellability and be pulled up with described hollow member, and
The described motlten metal being pulled up is cooled to form described foundry goods.
8. a top-guiding type continuous casting apparatus, described top-guiding type continuous casting apparatus for forming the foundry goods with reservation shape by pull-up motlten metal, and described top-guiding type continuous casting apparatus includes:
Holding furnace, described holding furnace is configured to keep described motlten metal；
Hollow member, described hollow member is configured to motlten metal described in pull-up；
Drive division, described drive division be configured to hollow member described in pull-up with by described motlten metal with described hollow member pull-up；And
Gas supply part, described gas supply part is configured to be supplied in described hollow member noble gas.
9. top-guiding type continuous casting apparatus according to claim 8, wherein:
Stop make described noble gas flow in described motlten metal after, described drive division by described motlten metal with described hollow member pull-up.
10. top-guiding type continuous casting apparatus according to claim 8 or claim 9, wherein:
It is provided with multiple hollow member；And
Described gas supply part makes described noble gas flow at least one hollow member in the plurality of hollow member to be injected in described motlten metal by described noble gas.
11. according to Claim 8 to the top-guiding type continuous casting apparatus described in any one in 10, wherein:
Described hollow member at least some of in be provided with releasing agent.
12. according to Claim 8 to the top-guiding type continuous casting apparatus described in any one in 11, described top-guiding type continuous casting apparatus also includes:
Cooling end, described cooling end is configured to when described hollow member is pulled up to be injected in by gaseous coolant on the described motlten metal that is pulled up with described hollow member.
13. according to Claim 8 to the top-guiding type continuous casting apparatus described in any one in 12, wherein:
When the described hollow member that pull-up has been immersed, described motlten metal is pulled up with described hollow member, described motlten metal due to the skin covering of the surface of described motlten metal, described motlten metal surface tension and described motlten metal and described hollow member between wellability and be pulled up with described hollow member, and
The described motlten metal being pulled up is cooled to form described foundry goods.
14. a continuous way foundry goods, described continuous way foundry goods includes:
Matrix, described matrix has the unidirectional solidification structure extended along the longitudinal direction；And
Two-phase body, described two-phase body extends along described longitudinal direction, wherein:
Described two-phase body is made up of hollow member.
15. continuous way foundry goods according to claim 14, wherein:
It is provided with multiple hollow member.
16. the continuous way foundry goods according to claims 14 or 15, wherein:
Described hollow member is immersed in motlten metal,
When the described hollow member that pull-up has been immersed, described motlten metal is pulled up with described hollow member, described motlten metal due to the skin covering of the surface of described motlten metal, described motlten metal surface tension and described motlten metal and described hollow member between wellability and be pulled up with described hollow member, and
The described motlten metal being pulled up is cooled to form described continuous way foundry goods.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-260863 | 2013-12-18 | ||
| JP2013260863A JP6036671B2 (en) | 2013-12-18 | 2013-12-18 | Pull-up type continuous casting method and pull-up type continuous casting apparatus |
| PCT/IB2014/002709 WO2015092508A1 (en) | 2013-12-18 | 2014-12-10 | Up-drawing continuous casting method, up-drawing continuous casting apparatus, and continuous casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105813780A true CN105813780A (en) | 2016-07-27 |
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|---|---|---|---|
| CN201480068046.5A Pending CN105813780A (en) | 2013-12-18 | 2014-12-10 | Up-drawing continuous casting method, up-drawing continuous casting apparatus, and continuous casting |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20160332220A1 (en) |
| JP (1) | JP6036671B2 (en) |
| CN (1) | CN105813780A (en) |
| WO (1) | WO2015092508A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108067594A (en) * | 2016-11-08 | 2018-05-25 | 丰田自动车株式会社 | It is molded manufacturing method and formed body manufacture device |
| CN114192781A (en) * | 2020-08-28 | 2022-03-18 | 丰田自动车株式会社 | Method for producing thin metal wire made of aluminum or aluminum alloy |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113510235B (en) * | 2021-06-18 | 2022-08-09 | 西安交通大学 | Directional solidification device and solidification method for metal |
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| US6539620B1 (en) * | 2000-01-19 | 2003-04-01 | General Electric Company | Method of manufacturing superalloy weld wire |
| WO2006020809A2 (en) * | 2004-08-11 | 2006-02-23 | Enventure Global Technology, Llc | Expandable tubular member having variable material properties |
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- 2014-12-10 WO PCT/IB2014/002709 patent/WO2015092508A1/en active Application Filing
- 2014-12-10 CN CN201480068046.5A patent/CN105813780A/en active Pending
- 2014-12-10 US US15/105,660 patent/US20160332220A1/en not_active Abandoned
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| JPS5125461A (en) * | 1974-08-27 | 1976-03-02 | Showa Aluminium Co Ltd | Aruminiumukanban no seizoho |
| US4643241A (en) * | 1984-07-26 | 1987-02-17 | Kabushiki Kaisha Toyota Chuo Kenkyusho | Method of preparing composite aluminum material |
| CN1031807A (en) * | 1987-09-05 | 1989-03-22 | 上海电机锻造厂 | The crystallizer of used in up-pulling method for continuously casting metallic pipe and technology |
| CN103124604A (en) * | 2010-09-17 | 2013-05-29 | 丰田自动车株式会社 | Free casting method, free casting apparatus, and casting |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108067594A (en) * | 2016-11-08 | 2018-05-25 | 丰田自动车株式会社 | It is molded manufacturing method and formed body manufacture device |
| CN108067594B (en) * | 2016-11-08 | 2019-11-05 | 丰田自动车株式会社 | Form manufacturing method and formed body manufacturing device |
| CN114192781A (en) * | 2020-08-28 | 2022-03-18 | 丰田自动车株式会社 | Method for producing thin metal wire made of aluminum or aluminum alloy |
| CN114192781B (en) * | 2020-08-28 | 2024-02-09 | 丰田自动车株式会社 | Preparation method of metal thin wire made of aluminum or aluminum alloy |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015092508A1 (en) | 2015-06-25 |
| US20160332220A1 (en) | 2016-11-17 |
| JP2015116585A (en) | 2015-06-25 |
| JP6036671B2 (en) | 2016-11-30 |
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