CN105392579A - Upward-drawing continuous casting method - Google Patents
Upward-drawing continuous casting method Download PDFInfo
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- CN105392579A CN105392579A CN201480041026.9A CN201480041026A CN105392579A CN 105392579 A CN105392579 A CN 105392579A CN 201480041026 A CN201480041026 A CN 201480041026A CN 105392579 A CN105392579 A CN 105392579A
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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
- B22D11/01—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
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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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- Mechanical Engineering (AREA)
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Abstract
In an upward-drawing continuous casting method according to one embodiment of the present invention, a starter (ST) is used to draw upward a molten metal (M1) held in a holding furnace (101). When accelerating the starter (ST) to a prescribed upward-drawing speed during casting initiation, the following intervals are provided: a first acceleration interval in which the starter is accelerated at a first acceleration from a stopped state to a first speed; a second acceleration interval in which the starter is accelerated at a second acceleration from the first speed to a second speed; and a constant speed interval which occurs between the first acceleration interval and the second acceleration interval, and in which the starter is drawn upward at the first speed.
Description
Technical field
The present invention relates to top-guiding type continuous casing.
Background technology
In patent document 1, as the epoch-making top-guiding type continuous casing not needing mold, propose a kind of free casting method.As Patent Document 1, if making after starting device (starter) impregnated in the surface (i.e. motlten metal face) of motlten metal (motlten metal), draw on this starting device, then due to skin covering of the surface, the surface tension of motlten metal, motlten metal is also followed starting device and is exported.Herein, by via the shape predetermined member be arranged near motlten metal face by motlten metal derive and it is cooled, the foundry goods with desired section shape can be cast continuously.
In common continuous casing, not only section shape, the shape of long side direction is also specified by casting mold.Particularly in continuous casing, because the metal (i.e. foundry goods) solidified needs to pass in casting mold, so fluid origin foundry goods becomes the shape extended with linearity along long side direction.
On the other hand, the shape predetermined member in free casting method only specifies the section shape of foundry goods, and does not specify the shape of long side direction.And, because shape predetermined member can be mobile in the direction (i.e. horizontal direction) parallel with motlten metal face, so the diversified foundry goods of the shape that can obtain long side direction.Such as, in patent document 1, disclose one and be not formed as linearity at long side direction and be formed as zigzag manner or spiral helicine hollow casting (namely managing).
Patent document 1: Japanese Unexamined Patent Publication 2012-61518 publication
Inventor has found following problem.
In the free casting method described in patent document 1, to just solidifying of being connected with starting device to after foundry goods blowing cooling gas, cooling molten metal indirectly.Herein, cast under needing the state that almost mutually balances in the speed (hereinafter referred to as setting rate) of solidifying of carrying out from the top down and lead speed.Such as, even if remain unchanged (that is, setting rate is invariable) for by the cooling capacity of motlten metal of above drawing, only increase lead speed, also cause freezing interface rises, be pulled off by the motlten metal above caused.That is, if cooling capacity is fixed, then the suitable lead speed matched with this cooling capacity is fixed.Wherein, in order to increase lead speed, make productivity ratio improve, need to improve above-mentioned cooling capacity.
When casting beginning, accelerate to desired lead speed (namely corresponding with above-mentioned cooling capacity suitable lead speed) from halted state.But, if on the acceleration that draws excessive, then existed before the lead speed desired by arriving, broken by the motlten metal that starting device draws, cannot carry out casting this problem.On the other hand, if the breaking of motlten metal when preventing this acceleration and the acceleration that draws on reducing, then there is the lead speed desired by arriving needs the time, productivity ratio this problem inferior.
Summary of the invention
The present invention, in view of above-mentioned and propose, its object is to, and provides a kind of breaking and the top-guiding type continuous casing of productivity ratio excellence by the motlten metal that above draws when suppressing to accelerate.
The top-guiding type continuous casing that a mode of the present invention relates to uses starting device to be held in the top-guiding type continuous casing keeping the motlten metal of stove draws,
When above-mentioned starting device being accelerated to the lead speed of regulation when casting and starting, possess: with the first acceleration from halted state accelerate to the first acceleration area of First Speed, the second acceleration area accelerating to second speed from above-mentioned First Speed with the second acceleration and the constant speed of above-mentioned starting device being drawn with above-mentioned First Speed between above-mentioned first acceleration area and above-mentioned second acceleration area interval.
By such formation, a kind of breaking and the top-guiding type continuous casing of productivity ratio excellence by the motlten metal that above draws when suppressing to accelerate can be provided.
Preferably above-mentioned first acceleration is when continuing from halted state to accelerate, before the lead speed arriving afore mentioned rules, by the acceleration that the above-mentioned motlten metal that above-mentioned starting device draws can be broken, and, above-mentioned second acceleration is when continuing from halted state to accelerate, before the lead speed arriving afore mentioned rules, by the acceleration that the above-mentioned motlten metal that above-mentioned starting device draws can be broken.Can more boost productivity.
In addition, preferably make above-mentioned first acceleration equal with above-mentioned second acceleration.In this situation, especially preferred above-mentioned first acceleration and above-mentioned second acceleration to be set to above-mentioned starting device drawing the maximum acceleration drawing machine and can play.
Further, still can possess and accelerate to the 3rd acceleration area of third speed with the 3rd acceleration from above-mentioned second speed and between above-mentioned second acceleration area and above-mentioned 3rd acceleration area, draw the constant speed of above-mentioned starting device with above-mentioned second speed interval.
On the other hand, above-mentioned first acceleration of above-mentioned second acceleration ratio also can be made large.In this situation, especially preferably above-mentioned second acceleration to be set to above-mentioned starting device drawing the maximum acceleration drawing machine and can play.
By the present invention, breaking and the top-guiding type continuous casing of productivity ratio excellence by the motlten metal that above draws when suppressing to accelerate can be provided.
Accompanying drawing explanation
Fig. 1 is the schematic sectional view of the free casting device that embodiment 1 relates to.
Fig. 2 is the top view of the shape predetermined member 102 that embodiment 1 relates to.
Fig. 3 is the schematic diagram of the accelerated method representing the lead speed that embodiment 1 relates to.
Fig. 4 is the schematic diagram of the accelerated method representing the lead speed that the variation 1 of embodiment 1 relates to.
Fig. 5 is the schematic diagram of the accelerated method representing the lead speed that the variation 2 of embodiment 1 relates to.
Fig. 6 is the top view of the shape predetermined member 102 that embodiment 2 relates to.
Fig. 7 is the side view of the shape predetermined member 102 that embodiment 2 relates to.
Detailed description of the invention
Below, be described in detail to applying the specific embodiment of the present invention with reference to accompanying drawing.But, the present invention does not limit by following embodiment.In addition, in order to make the explanation clear, following record and accompanying drawing are suitably simplified.
(embodiment 1)
First, the free casting device (top-guiding type continuous casting apparatus) related to embodiment 1 with reference to Fig. 1 is described.Fig. 1 is the schematic sectional view of the free casting device that embodiment 1 relates to.As shown in Figure 1, the free casting device that embodiment 1 relates to possesses: motlten metal keep stove 101, shape predetermined member 102, cramp bar 104, actuator 105, refrigerating gas nozzle 106 and on draw machine 108.Xy plane in Fig. 1 forms horizontal plane, and z-axis direction is vertical.More specifically, the positive direction vertical of z-axis upwards.
Motlten metal keeps stove 101 to receive the motlten metal M1 of such as aluminium, its alloy etc., and remains on the temperature that motlten metal M has the regulation of mobility.In the example in fig 1, because do not keep stove 101 to supplement motlten metal to motlten metal in casting, so the surface (i.e. motlten metal face) of motlten metal M1 reduces along with the carrying out of casting.On the other hand, also can be keep stove 101 to supplement motlten metal to motlten metal at any time in casting, motlten metal face is remained constant formation., if improve the design temperature keeping stove, then the position of freezing interface SIF can be improved herein, if reduce the design temperature keeping stove, then the position of freezing interface SIF can be reduced.In addition, motlten metal M1 can certainly be metal, the alloy beyond other aluminium.
Shape predetermined member 102 is such as made up of pottery, stainless steel etc., is configured near motlten metal face.In the example in fig 1, the interarea (lower surface) being configured to the downside of shape predetermined member 102 contacts with motlten metal face.Shape predetermined member 102 specifies the cross sectional shape of the foundry goods M3 that will cast, and prevent the oxide-film formed on the surface of motlten metal M1, the foreign matter that swims in the surface of motlten metal M1 is mixed into foundry goods M3.Foundry goods M3 shown in Fig. 1 is the shape in the cross section (hereinafter referred to as cross section) of horizontal direction is the solid casting of tabular.In addition, the cross sectional shape of foundry goods M3 is not specially limited certainly.Foundry goods M3 also can be the hollow casting such as pipe, square tube.
Fig. 2 is the top view of the shape predetermined member 102 that embodiment 1 relates to.Herein, the sectional view of the shape predetermined member 102 of Fig. 1 is equivalent to the I-I sectional view of Fig. 2.As shown in Figure 2, shape predetermined member 102 has the flat shape of such as rectangular shape, has the opening portion (motlten metal passage 103) of the rectangular shape of the thickness t1 × width w1 passed through for motlten metal at central portion.
Wherein, the xyz coordinate in Fig. 2 is consistent with Fig. 1.
As shown in Figure 1, motlten metal M1 due to its skin covering of the surface, surface tension and follow foundry goods M3 by draw, and by the motlten metal passage 103 of shape predetermined member 102.That is, motlten metal M1 is by the motlten metal passage 103 of shape predetermined member 102, thus, applies external force by shape predetermined member 102 for motlten metal M1, the cross sectional shape of regulation foundry goods M3.Herein, by due to the skin covering of the surface of motlten metal, surface tension and follow foundry goods M3 and to be called by the motlten metal drawn from motlten metal face and to keep motlten metal M2.In addition, foundry goods M3 is freezing interface SIF with the border of maintenance motlten metal M2.
Cramp bar 104 supports shape predetermined member 102.
Cramp bar 104 is linked to actuator 105.By actuator 105, shape predetermined member 102 can move at above-below direction (vertical) and horizontal direction by cramp bar 104.By such formation, while the reduction in the motlten metal face that can cause the carrying out because of casting, shape predetermined member 102 is moved in downward direction.In addition, due to shape predetermined member 102 can be made to move in the horizontal direction, so the change in shape of the length direction of foundry goods M3 can be made.
Refrigerating gas nozzle (cooling end) 106 to be jetted the cooling unit that the refrigerating gas (air, nitrogen, argon gas etc.) that supplies from refrigerating gas supply unit (not shown) carries out cooling to foundry goods M3.If increase the flow of refrigerating gas, then the position of freezing interface SIF can be reduced, if reduce the flow of refrigerating gas, then the position of freezing interface SIF can be improved.In addition, although not shown, refrigerating gas nozzle (cooling end) 106 also can according to the movement of shape predetermined member 102 in the horizontal direction, above-below direction moves.
By while utilize links with starting device ST on draw machine 108 and draw on foundry goods M3, utilize refrigerating gas to cool foundry goods M3, the maintenance motlten metal M2 near the SIF of freezing interface solidified gradually, continuous formation foundry goods M3.If quickening is drawn the lead speed of machine 108, then the position of freezing interface SIF can be improved, if slow down lead speed, then the position of freezing interface SIF can be reduced.
Next, with reference to Fig. 1, the free casting method that embodiment 1 relates to is described.
First, starting device ST is declined, by the motlten metal passage 103 of shape predetermined member 102, the leading section of starting device ST be impregnated in motlten metal M1.
Next, with the speed specified start starting device ST on draw.Herein, even if starting device ST leaves from motlten metal face, due to skin covering of the surface, surface tension, also can be formed and follow starting device ST and by the maintenance motlten metal M2 caused from motlten metal face.As shown in Figure 1, motlten metal M2 is kept to be formed at the motlten metal passage 103 of shape predetermined member 102.That is, shape is given by shape predetermined member 102 to maintenance motlten metal M2.
Next, because starting device ST is cooled by the refrigerating gas blown out from refrigerating gas nozzle 106, so keep motlten metal M2 to solidify gradually from upside towards downside, foundry goods M3 constantly grows up.
Herein, when casting beginning, lead speed is made to accelerate to desired lead speed (that is, the suitable lead speed matched with the cooling capacity of refrigerating gas nozzle 106) from halted state.The accelerated method that the free casting method that embodiment 1 relates to is casting lead speed when starting has a feature.Below, the accelerated method of lead speed when starting casting with reference to Fig. 3 is described.
Fig. 3 is the schematic diagram of the accelerated method representing the lead speed that embodiment 1 relates to.Horizontal axis representing time, the longitudinal axis represents lead speed (mm/s).In figure 3, with single dotted broken line, the situation continuing acceleration with acceleration a1 is shown to compare.In this situation, before arriving the suitable lead speed and maximum lead speed Vmax matched with the cooling capacity of refrigerating gas nozzle 106, motlten metal M2 is kept to break.Herein, acceleration a1 draws the peak acceleration that machine 108 can play on being such as.In figure 3, reach the stage of speed V1 at lead speed, keep motlten metal M2 to break.
Further, in figure 3, in order to more also illustrate the situation continuing with acceleration a2 to prevent from keeping breaking of motlten metal M2 to accelerate with single dotted broken line.Herein, even if acceleration a2 continues to accelerate to keep motlten metal M2 also not produce the maximum acceleration that can arrive maximum lead speed Vmax with breaking from halted state.That is, if continue to accelerate from halted state with the acceleration larger than acceleration a2, then before the maximum lead speed Vmax of arrival, motlten metal M2 is kept to break.On the other hand, if continue to accelerate from halted state with the acceleration of below acceleration a2, then maintenance motlten metal M2 can not be made to produce arrive maximum lead speed Vmax with breaking.As shown in Figure 3, when continuing with acceleration a2 to accelerate, the time arriving maximum lead speed Vmax is moment t2, and productivity ratio is inferior.
Given this, in the free casting method that embodiment 1 relates to, in order to prevent keeping motlten metal M2 break and make productivity ratio improve, between Accelerating running interval, be provided with constant-speed operation interval.Specifically, in figure 3, before producing than arrival maintenance motlten metal M2 the speed V1 broken, switch from the Accelerating running of acceleration a1 to constant-speed operation.In figure 3, reach the stage of speed V11 (< V1) at lead speed, switch to constant-speed operation.Herein, the maximum lead speed Vmax that speed V11 compares and cooling capacity matches is little.Therefore, in the constant-speed operation interval run with speed V11, freezing interface SIF reduces.
After during the speed V11 of being held in is regulation, again switch from constant-speed operation to the Accelerating running of acceleration a1.By arranging constant-speed operation interval, freezing interface SIF is reduced, can prevent after restarting with the Accelerating running of acceleration a1, the maintenance motlten metal M2 under speed V1 breaks.Acceleration in Accelerating running interval does not need identical.But from the viewpoint that productivity ratio improves, the acceleration preferably in arbitrary Accelerating running interval is all large than acceleration a2.In other words, from the viewpoint that productivity ratio improves, if the acceleration in preferred Accelerating running interval continues to accelerate from halted state with this acceleration, then before the maximum lead speed Vmax of arrival, keep motlten metal M2 to break such acceleration.
Further, in the example in figure 3, again constant-speed operation is switched to when speed V12 (> V1).Afterwards, again switch to the Accelerating running run with acceleration a1, the maximum lead speed Vmax of final arrival.That is, it is interval that twice constant-speed operation is set.Herein, the number of times in constant-speed operation interval is preferably the least possible from the viewpoint of productivity ratio.On the other hand, when constant-speed operation interval be only once, existed before the maximum lead speed Vmax of arrival, keep the situation that motlten metal M2 breaks.Like this, make lead speed arrive maximum lead speed Vmax to prevent from keeping breaking of motlten metal M2, it is interval that constant-speed operation can be set repeatedly.
In addition, each constant-speed operation length of an interval degree is shorter, and productivity ratio more can be made to improve.On the other hand, if constant-speed operation interval is too short, then the reduction of the freezing interface SIF in constant-speed operation interval is insufficient, when switching to Accelerating running, easily occurs to keep breaking of motlten metal M2.
Further, in the free casting method that embodiment 1 relates to, even if accelerate with the acceleration larger than the acceleration a2 continuing to accelerate to keep motlten metal M2 also not break.Therefore, as shown in Figure 3, the time arriving maximum lead speed Vmax is moment t1 (< t2), and productivity ratio is excellent.
(variation 1 of embodiment 1)
Next, the free casting method related to reference to the variation 1 of Fig. 4 to embodiment 1 is described.Fig. 4 is the schematic diagram of the accelerated method representing the lead speed that the variation 1 of embodiment 1 relates to.In the diagram, with single dotted broken line, the situation continuing acceleration with less than acceleration a1 and larger than acceleration a2 acceleration a3 is shown to compare.When continuing with acceleration a3 to accelerate, also before the maximum lead speed Vmax of arrival, keeping motlten metal M2 to produce and breaking.But, as shown in Figure 4, reach at lead speed in the stage of the large V2 of specific rate V1, keep motlten metal M2 to produce and break.
Given this, in the free casting method that the variation 1 of embodiment 1 relates to, reaching specific rate V1 large and stage of the speed V21 that specific rate V2 is little, switch to constant-speed operation.That is, in the example in fig. 4, compared with the example of Fig. 3, reduce acceleration, on the other hand, constant-speed operation interval is only once.Like this, the number of times optimization in constant-speed operation interval is preferably made according to acceleration.In addition, because keep motlten metal M2 especially easily to break immediately after commencement of casting, preferably start to accelerate with the acceleration a3 less than acceleration a1.
(variation 2 of embodiment 1)
Next, the free casting method related to reference to the variation 2 of Fig. 5 to embodiment 1 is described.Fig. 5 is the schematic diagram of the accelerated method representing the lead speed that the variation 2 of embodiment 1 relates to.In the diagram, the acceleration of the front and back in constant-speed operation interval is all acceleration a3.On the other hand, in Figure 5, the acceleration behind constant-speed operation interval is set to the large acceleration a1 of the acceleration a3 before than constant-speed operation interval.Thus, the moment t4 of the arrival maximum lead speed Vmax in variation 2 is more Zao than the moment t3 of the maximum lead speed of the arrival in variation 1 Vmax.That is, compared with the free casting method related to variation 1, the free casting method productivity ratio that variation 2 relates to is excellent.
As described above, in the free casting method that embodiment 1 relates to, the acceleration midway when casting beginning arranges constant-speed operation interval.Thereby, it is possible to accelerate to keep motlten metal M2 to produce the acceleration broken when lasting acceleration, and prevent from keeping breaking of motlten metal M2.In addition, maximum lead speed Vmax can be arrived with the time short than ever, make productivity ratio excellent.
(embodiment 2)
Next, the free casting device related to reference to Fig. 6, the 7 pairs of embodiments 2 is described.Fig. 6 is the top view of the shape predetermined member 102 that embodiment 2 relates to.Fig. 7 is the side view of the shape predetermined member 102 that embodiment 2 relates to.Wherein, the xyz coordinate in Fig. 6,7 is also consistent with Fig. 1.
The shape predetermined member 102 related to due to the embodiment 1 shown in Fig. 2 is made up of one block of plate, so the thickness t1 of motlten metal passage 103, width w1 are fixed.On the other hand, as shown in Figure 6, the shape predetermined member 102 that embodiment 2 relates to possesses shape regulation plate 102a, 102b, 102c, 102d of four pieces of rectangular shapes.That is, the shape predetermined member 102 that embodiment 2 relates to is divided into multiple.By such formation, the thickness t1 of motlten metal passage 103, width w1 can be made to change.In addition, shape regulation plate 102a, 102b, 102c, 102d of four pieces of rectangular shapes can synchronously move in z-axis direction.
As shown in Figure 6, shape regulation plate 102a, 102b arranges in the direction of the x axis and is oppositely disposed.In addition, as shown in Figure 7, shape specifies plate 102a, 102b in the z-axis direction with identical level configurations.Shape specifies that the interval of plate 102a, 102b defines the width w1 of motlten metal passage 103.And, because shape regulation plate 102a, 102b can move in x-axis direction independently, so width w1 can be made to change.In addition, in order to measure the width w1 of motlten metal passage 103, also as shown in Figure 6,7, shape regulation plate 102a can arrange laser displacement instrument S1, and laser reflection plate S2 is set on shape regulation plate 102b.
In addition, as shown in Figure 6, shape regulation plate 102c, 102d arrange in y-axis direction and are oppositely disposed.In addition, shape specifies plate 102c, 102c in z-axis direction with identical level configurations.Shape specifies that the interval of plate 102c, 102d defines the thickness t1 of motlten metal passage 103.And, because shape regulation plate 102c, 102d can move in y-axis direction independently, so thickness t1 can be made to change.
Shape specifies that plate 102a, 102b are configured to specify with shape the upper contact of plate 102c, 102d.
Next, specify that the driving mechanism of plate 102a is described with reference to Fig. 6,7 pairs of shapes.As shown in Figure 6,7, shape specifies that the driving mechanism of plate 102a possesses sliding stand T1, T2, line slideway G11, G12, G21, G22, actuator A1, A2 and bar R1, R2.Wherein, although shape regulation plate 102b, 102c, 102d also possess driving mechanism identically with shape regulation plate 102a, be omitted in fig. 6 and 7.
As shown in Figure 6,7, shape specifies that plate 102a is loaded, is fixed on the sliding stand T1 that can slide along the x-axis direction.Sliding stand T1 is placed in the mode slid freely and is extended in parallel on a pair line slideway G11, G12 of configuration with x-axis direction.In addition, sliding stand T1 with link from actuator A1 along x-axis to extending the bar R1 configured.By above formation, shape regulation plate 102a can slide in x-axis direction.
In addition, as shown in Figure 6,7, line slideway G11, G12 and actuator A1 are loaded, being fixed on can on the sliding stand T2 of z-axis direction slip.Sliding stand T2 is placed in the mode slid freely and extends in parallel on a pair line slideway G21, G22 of configuration with z-axis direction.In addition, sliding stand T2 links with the bar R2 extending configuration from actuator A2 along the z-axis direction.Line slideway G21, G22 and actuator A2 are fixed in the ground or pedestal (not shown) etc. of level.By formation such above, shape regulation plate 102a can slide in z-axis direction.Wherein, as actuator A1, A2, hydraulic cylinder, cylinder, motor etc. can be enumerated.
As described above, in the free casting device that embodiment 2 relates to, the change in shape of motlten metal passage 103 can be made.Therefore, it is possible to make the cross sectional shape of foundry goods M3 change in casting midway.
Further, casting in Accelerating running interval when starting, also may be controlled to the shape reducing motlten metal passage 103.By reducing the quality keeping motlten metal M2, can suppress further to keep breaking of motlten metal M2.
In addition, the present invention is not limited to above-mentioned embodiment, suitably can change in the scope not departing from purport.
Such as, if the present invention be use starting device ST come on draw the top-guiding type continuous casing of motlten metal, then also can be applied to the top-guiding type continuous casing not using shape predetermined member 102.
The application based on CLAIM OF PRIORITY based on the Japanese patent application 2013-158202 proposed on July 30th, 2013, and quotes full content disclosed in it at this.
Symbol description
101... motlten metal keeps stove; 102... shape predetermined member; 102a ~ 102d... shape regulation plate; 103... motlten metal passage; 104... cramp bar; 105... actuator; 106... refrigerating gas nozzle; 108... machine is drawn on; A1, A2... actuator; G11, G12, G21, G22... line slideway; M1... motlten metal; M2... motlten metal is kept; M3... foundry goods; R1, R2... bar; S1... laser displacement instrument; S2... laser reflection plate; SIF... freezing interface; ST... starting device; T1, T2... sliding stand.
Claims (7)
1. a top-guiding type continuous casing uses starting device to be held in the top-guiding type continuous casing keeping the motlten metal of stove draws, wherein,
When above-mentioned starting device being accelerated to the lead speed of regulation when casting and starting, possess: with the first acceleration from halted state accelerate to the first acceleration area of First Speed, the second acceleration area accelerating to second speed from above-mentioned First Speed with the second acceleration and the constant speed of above-mentioned starting device being drawn with above-mentioned First Speed between above-mentioned first acceleration area and above-mentioned second acceleration area interval.
2. top-guiding type continuous casing according to claim 1, wherein,
Above-mentioned first acceleration is when continuing from halted state to accelerate, before the lead speed arriving afore mentioned rules, by the acceleration that the above-mentioned motlten metal that above-mentioned starting device draws can be broken,
Above-mentioned second acceleration is when continuing from halted state to accelerate, before the lead speed arriving afore mentioned rules, by the acceleration that the above-mentioned motlten metal that above-mentioned starting device draws can be broken.
3. the top-guiding type continuous casing according to claims 1 or 2, wherein,
Make above-mentioned first acceleration equal with above-mentioned second acceleration.
4. top-guiding type continuous casing according to claim 3, wherein,
Above-mentioned first acceleration and above-mentioned second acceleration are become and above-mentioned starting device will draw the maximum acceleration drawing machine and play.
5. according to the top-guiding type continuous casing in Claims 1 to 4 described in any one, wherein,
Also possess the 3rd acceleration area accelerating to third speed from above-mentioned second speed with the 3rd acceleration and the constant speed of above-mentioned starting device being drawn with above-mentioned second speed between above-mentioned second acceleration area and above-mentioned 3rd acceleration area interval.
6. the top-guiding type continuous casing according to claims 1 or 2, wherein,
Make above-mentioned first acceleration of above-mentioned second acceleration ratio large.
7. top-guiding type continuous casing according to claim 6, wherein,
Above-mentioned second acceleration is become and above-mentioned starting device will draw the maximum acceleration drawing machine and play.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-158202 | 2013-07-30 | ||
| JP2013158202A JP6003840B2 (en) | 2013-07-30 | 2013-07-30 | Pull-up continuous casting method |
| PCT/JP2014/003010 WO2015015686A1 (en) | 2013-07-30 | 2014-06-05 | Upward-drawing continuous casting method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105392579A true CN105392579A (en) | 2016-03-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480041026.9A Pending CN105392579A (en) | 2013-07-30 | 2014-06-05 | Upward-drawing continuous casting method |
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| Country | Link |
|---|---|
| US (1) | US20160158833A1 (en) |
| EP (1) | EP3028790A1 (en) |
| JP (1) | JP6003840B2 (en) |
| KR (1) | KR20160018784A (en) |
| CN (1) | CN105392579A (en) |
| WO (1) | WO2015015686A1 (en) |
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| KR102237422B1 (en) * | 2020-05-08 | 2021-04-08 | 제일기술산업(주) | Monitoring system for detecting woriking range of loading arm |
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| DE3426168C2 (en) * | 1984-07-16 | 1985-11-21 | Mannesmann AG, 4000 Düsseldorf | Process for the horizontal continuous casting of metals, in particular steel |
| JPS63199049A (en) * | 1987-02-13 | 1988-08-17 | Sumitomo Electric Ind Ltd | Continuous crystal growth method |
| JPH02205232A (en) * | 1989-02-01 | 1990-08-15 | Natl Res Inst For Metals | Method and apparatus for drawing-up continuous casting |
| JPH0743391B2 (en) * | 1990-07-24 | 1995-05-15 | 株式会社クボタ | Measuring method of pulling speed in pulling casting |
| JP2950127B2 (en) * | 1993-12-28 | 1999-09-20 | 住友金属工業株式会社 | Method of drawing slab in early stage of continuous casting and dummy bar head |
| JP5471771B2 (en) * | 2010-04-26 | 2014-04-16 | Ｊｆｅスチール株式会社 | Casting start method with continuous casting machine |
| JP5373728B2 (en) * | 2010-09-17 | 2013-12-18 | 株式会社豊田中央研究所 | Free casting method, free casting apparatus and casting |
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2013
- 2013-07-30 JP JP2013158202A patent/JP6003840B2/en not_active Expired - Fee Related
-
2014
- 2014-06-05 US US14/908,908 patent/US20160158833A1/en not_active Abandoned
- 2014-06-05 WO PCT/JP2014/003010 patent/WO2015015686A1/en active Application Filing
- 2014-06-05 EP EP14832044.3A patent/EP3028790A1/en not_active Withdrawn
- 2014-06-05 KR KR1020167000601A patent/KR20160018784A/en not_active Application Discontinuation
- 2014-06-05 CN CN201480041026.9A patent/CN105392579A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH035047A (en) * | 1989-05-30 | 1991-01-10 | Nippon Steel Corp | Method for continuously casting hollow raw pipe |
| CN1065613A (en) * | 1991-04-10 | 1992-10-28 | 金属技术开发公司 | In continuous casting steel machine, improve the method that viscous is handled |
| WO1992018273A1 (en) * | 1991-04-10 | 1992-10-29 | Techmetal Promotion | Dynamic casting speed control method for a skinning over cycle flollowing sticking in a continuous steel casting process |
| JPH1029048A (en) * | 1996-07-17 | 1998-02-03 | Sumitomo Metal Ind Ltd | Method for drawing out cast slab in high velocity at initial stage of continuous casting |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6003840B2 (en) | 2016-10-05 |
| WO2015015686A1 (en) | 2015-02-05 |
| US20160158833A1 (en) | 2016-06-09 |
| KR20160018784A (en) | 2016-02-17 |
| EP3028790A1 (en) | 2016-06-08 |
| JP2015027689A (en) | 2015-02-12 |
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