CN101428334A - Casting method and device for ingot metal - Google Patents
Casting method and device for ingot metal Download PDFInfo
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- CN101428334A CN101428334A CNA2008101439010A CN200810143901A CN101428334A CN 101428334 A CN101428334 A CN 101428334A CN A2008101439010 A CNA2008101439010 A CN A2008101439010A CN 200810143901 A CN200810143901 A CN 200810143901A CN 101428334 A CN101428334 A CN 101428334A
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Abstract
The invention relates to a casting method and a device for ingot metal such as aluminum, silver, zinc and zinc-based alloy ingot. The invention adopts the method that the molten metal is cast into an ingot mold at first, then at least one surface of the ingot is heated and insulated during the solidification process, to ensure that the cooling speed thereof is greatly reduced and less than that of the other surfaces of the ingot, and the heating is not stopped until the volume of the molten metal in the center of the ingot during the cold shrinkage process is fully compensated by the molten metal on the surface. The device comprises a casting mechanism and a die, the die adopts a vessel with an opening, an insulating cover for covering the opening is also arranged on the die, and a heating device is arranged in the insulating cover. The invention can be used for ingot metal such as aluminum, silver, zinc ingot, zinc-based alloy ingot and the like cast by the die with the opening. The invention ensures that the volume of the surface can be compensated till the volume everywhere in the ingot metal is completely filled and shrunk through delaying the hardening time of one surface of the ingot metal; therefore, the influencing factors of formation of the internal shrinkage hole are radically eliminated, and the effect of eliminating the internal shrinkage hole is realized.
Description
Technical field
The present invention relates to a kind of production method and device of ingot, the casting method and the device of ingots such as particularly a kind of aluminium, silver, zinc and zinc-base alloy ingot.
Background technology
The production method of aluminium, silver, zinc ingot metal and ZINC ALLOY generally is earlier Metal Melting to be changed into liquid, and motlten metal liquid is cast in the open mold, makes it be frozen into the solid ingot of required form again.More than the temperature difference of its process of setting generally reaches and spends 300 more, in temperature-fall period, according to principle of expanding with heat and contracting with cold, the ingot volume will inevitably be greater than cooled ingot volume when casting was finished, for the less ingot of volume, its ingot thickness is little, and the cooling velocity at ingot center and the cooling velocity of ingot surface are more or less the same, volume compensation in its shrinkage process can be concentrated to ingot surface, the effect of dwindling simultaneously inside and outside can realizing.And it is great for 25 kilograms the ingot for ingot, as adopt the mode of nature cooling or pouring cooling water to cool off, the cooling velocity at its ingot center and the cooling velocity of ingot surface differ bigger, when ingot surface solidifies, its ingot center still has a large amount of motlten metals, the volume compensation of this part motlten metal in the shrinkage process can't be passed to ingot surface, easy thickness at ingot, the following middle part of epidermis produces internal shrinkage, along with continuing to increase of ingot shape size, this phenomenon is more serious, and the existence of internal shrinkage may cause ponding in the ingot, might be explosion caused in user's use etc. security incident, must the casting method and the device of ingot be improved, eliminate the ingot internal shrinkage.
Summary of the invention
The object of the present invention is to provide a kind of casting method of ingot, it is adapted to adopt the casting of opening pattern tool, and it can eliminate the internal shrinkage of ingot, eliminates the potential safety hazard that ingot in use may be explosion caused.
The object of the present invention is to provide a kind of pouring device of ingot, it realizes said method, reaches the effect of the internal shrinkage of eliminating ingot.
Technical scheme of the present invention is:
A kind of casting method of ingot, it is adapted to adopt the casting of opening pattern tool, it is after being cast to motlten metal in the ingot mould tool earlier, heat tracing is carried out at least one surface to the ingot in the process of setting, make this surperficial cooling velocity other surperficial cooling velocities less than ingot, up to the volume of motlten metal in the shrinkage process at ingot center obtain the abundant compensation of melt surface metal intact after, just stop to heat.
As to further improvement of the present invention, described ingot is any in zinc-base alloy ingot, aluminium ingot, silver ingot, the zinc ingot metal.
As to further improvement of the present invention, described heat tracing mode is the combustion gas heating.
As to further improvement of the present invention, described heat tracing mode is electrical heating.
A kind of pouring device of ingot, it comprises casting mechanism, mould, described mould is an open containers, it is characterized in that also being provided with the stay-warm case that its opening is covered on the described mould, is provided with heater in the described stay-warm case.
As to further improvement of the present invention, described mould is that the cross section is the open containers of T type wide at the top and narrow at the bottom, and described stay-warm case is to have the indent inner chamber that heater is set, the cover that periphery docks with the mould openings edge.Heater in the described stay-warm case is gas-operated thermal bath facility or electric heater unit.
As to further improvement of the present invention, described electric heater unit is the plate shaped heater with plane heating face, described plate shaped heater is to constitute heating surface by the heat radiation tube series connection, the shape of described heating surface and zinc ingot metal surface adapt, and the area of described heating surface is 1/4～1/2 of a zinc ingot metal upper surface area.
As to further improvement of the present invention, described heat radiation tube is the quartz ampoule of in-built electrical thermal element.
As to further improvement of the present invention, gas-operated thermal bath facility in the described stay-warm case is the ellipse closed loop gas-operated thermal bath facility that is connected with Gas Pipe, described ellipse closed loop gas-operated thermal bath facility is for simultaneously being provided with the ellipse closed loop steel pipe of a plurality of ventholes, and the quantity of described venthole is 8～20;
As to further improvement of the present invention, the window type gas-operated thermal bath facility that gas-operated thermal bath facility in the described stay-warm case is connected with Gas Pipe, steel pipe parallel by many, that one side is provided with venthole is formed, the quantity of the venthole of described window type gas-operated thermal bath facility is 20～50.
The invention has the beneficial effects as follows:
The present invention can be used for the production by the ingot of open mold casting such as aluminium, silver, zinc ingot metal and ZINC ALLOY.Owing to adopt a mode that heat on the surface to the ingot after the casting, a surface heat preservation certain hour to ingot, delay this surface cure time of ingot, make this back, surface in other surface solidification, in the process of setting of ingot, till this surface can be carried out volume compensation volume feeding is everywhere filled up in ingot.All surface has all solidified the problem that causes producing internal shrinkage when having avoided in the prior art solidifying because of the ingot centre, has fundamentally eliminated the influence factor that internal shrinkage forms, and has realized eliminating the effect of internal shrinkage.
Device provided by the present invention can be to a timely heat tracing in surface of the ingot after the casting, its upper surface of ingot as the casting of open containers pattern is heated by heater provided by the invention, keep molten condition when just can all not solidify at other positions of ingot as the upper surface of T type ingot, after treating that its underpart is all solidified, stop insulation, upper surface is solidified, and the heater that the invention provides different heat sources is selective.
The invention will be further described below in conjunction with accompanying drawing:
Description of drawings
Fig. 1 is the mould structure schematic diagram of device of the present invention;
Fig. 2 is a gas-operated thermal bath facility structural representation in the device of the embodiment of the invention 1;
Fig. 3 is a gas-operated thermal bath facility structural representation in the device of the embodiment of the invention 3;
Fig. 4 is an electric heater unit structural representation in the device of the embodiment of the invention 5;
Fig. 5 is a stay-warm case structural representation in the device of the present invention;
Fig. 6 is the product structure schematic diagram of embodiments of the invention 1.
Among the figure: 1, mould, 2, window type gas-operated thermal bath facility, 3, ellipse closed loop gas-operated thermal bath facility, 4, electric heater unit, 5, stay-warm case, 6, ingot.
The specific embodiment
Embodiment 1:
A kind of casting method of ingot, it is used to produce zinc-base alloy ingot, it adopts the open mold casting, it is after first zinc-base alloy liquid with fusion is cast in the ingot mould tool, upper surface to the zinc-base alloy ingot in the process of setting carries out heat tracing, make this surperficial cooling velocity other surperficial cooling velocities less than ingot, up to the volume of motlten metal in the shrinkage process at zinc-base alloy ingot center obtain the abundant compensation of melt surface metal intact after, just stop to heat.
A kind of pouring device of ingot, as Fig. 1, Fig. 2, shown in Figure 5, it is used for the zinc-base alloy ingot 6 that production specification is 1000Kg, adopt mould 1 casting, the cross section of mould 1 length direction is the rectangular build open containers of T type wide at the top and narrow at the bottom, stay-warm case 5 is the indent inner chamber that is provided with heater, the cover that periphery docks with the mould openings edge, gas-operated thermal bath facility in the stay-warm case 5 is the window shape gas-operated thermal bath facility 2 that links with Gas Pipe, and window shape gas-operated thermal bath facility 2 belows are provided with 20 combustion gas ventholes.
This device is to use like this: the zinc-base alloy liquid of the liquid state that composition is qualified injects in the mould 1, dragged for the oxidizing slag on zinc-base alloy liquid surface through operating personnel, after having taken off surface scale, window type gas-operated thermal bath facility 2 is implemented heating in zinc-base alloy ingot 6 surfaces of having cast to zinc-base alloy ingot 6 surfaces, cover stay-warm case 5 again, to 6 insulation a period of times of zinc-base alloy ingot, after treating that zinc-base alloy ingot 6 ingot surfaces solidify fully, stop insulation, the demoulding is trimmed to and meets the product standard of dispatching from the factory according to a conventional method again, and obtains zinc-base alloy ingot 6 products.
Embodiment 2:
A kind of casting method of ingot, it is used to produce zinc-base alloy ingot, it adopts the open mold casting, it is after first zinc-base alloy liquid with fusion is cast in the ingot mould tool, upper surface to the zinc-base alloy ingot in the process of setting carries out heat tracing, make this surperficial cooling velocity other surperficial cooling velocities less than ingot, up to the volume of motlten metal in the shrinkage process at zinc-base alloy ingot center obtain the abundant compensation of melt surface metal intact after, just stop to heat.
A kind of pouring device of ingot, as Fig. 1, Fig. 2, shown in Figure 5, it is used for the zinc-base alloy ingot 6 that production specification is 1700Kg, adopt mould 1 casting, the cross section of mould 1 length direction is the rectangular build open containers of T type wide at the top and narrow at the bottom, stay-warm case 5 is the indent inner chamber that is provided with heater, the cover that periphery docks with the mould openings edge, gas-operated thermal bath facility in the stay-warm case 5 is the window shape gas-operated thermal bath facility 2 that links with Gas Pipe, and window shape gas-operated thermal bath facility 2 belows are provided with 50 combustion gas ventholes.
This device is to use like this: the zinc-base alloy liquid of the liquid state that composition is qualified injects in the mould 1, dragged for the oxidizing slag on zinc-base alloy liquid surface through operating personnel, after having taken off surface scale, window type gas-operated thermal bath facility 2 is implemented heating in zinc-base alloy ingot 6 surfaces of having cast to zinc-base alloy ingot 6 surfaces, cover stay-warm case 5 again, to 6 insulation a period of times of zinc-base alloy ingot, after treating that zinc-base alloy ingot 6 ingot surfaces solidify fully, stop insulation, the demoulding is trimmed to and meets the product standard of dispatching from the factory according to a conventional method again, and obtains zinc-base alloy ingot 6 products.
Embodiment 3:
A kind of casting method of ingot, it is used to produce zinc ingot metal, it adopts the open mold casting, it is after first zinc liquid with fusion is cast in the ingot mould tool, upper surface to the zinc ingot metal in the process of setting carries out heat tracing, make this surperficial cooling velocity other surperficial cooling velocities less than ingot, up to the volume of motlten metal in the shrinkage process at zinc ingot metal center obtain the abundant compensation of melt surface metal intact after, just stop to heat.
A kind of pouring device of ingot, as Fig. 1, Fig. 3, shown in Figure 5, it is used for the zinc ingot metal that production specification is 1000Kg, adopt mould 1 casting, the cross section of mould 1 length direction is the rectangular build open containers of T type wide at the top and narrow at the bottom, stay-warm case 5 is the indent inner chambers that are provided with heater, the cover that periphery docks with the mould openings edge, gas-operated thermal bath facility in the stay-warm case 5 is the ellipse closed loop gas-operated thermal bath facility 3 that is connected with Gas Pipe, ellipse closed loop gas-operated thermal bath facility 3 one sides are provided with the ellipse closed loop steel pipe of a plurality of ventholes, and the quantity of venthole is 8;
The using method of this device is with reference to embodiment 1, and difference is that used heater is an ellipse closed loop gas-operated thermal bath facility 3.
Embodiment 4:
A kind of casting method of ingot, it is used to produce zinc ingot metal, it adopts the open mold casting, it is after first zinc liquid with fusion is cast in the ingot mould tool, upper surface to the zinc ingot metal in the process of setting carries out heat tracing, make this surperficial cooling velocity other surperficial cooling velocities less than ingot, up to the volume of motlten metal in the shrinkage process at zinc ingot metal center obtain the abundant compensation of melt surface metal intact after, just stop to heat.
A kind of pouring device of ingot, as Fig. 1, Fig. 3, shown in Figure 5, it is used for the zinc ingot metal that production specification is 1700Kg, adopt mould 1 casting, the cross section of mould 1 length direction is the rectangular build open containers of T type wide at the top and narrow at the bottom, stay-warm case 5 is the indent inner chambers that are provided with heater, the cover that periphery docks with the mould openings edge, gas-operated thermal bath facility in the stay-warm case 5 is the ellipse closed loop gas-operated thermal bath facility 3 that is connected with Gas Pipe, ellipse closed loop gas-operated thermal bath facility 3 one sides are provided with the ellipse closed loop steel pipe of a plurality of ventholes, and the quantity of venthole is 20;
The using method of this device is with reference to embodiment 1, and difference is that used heater is an ellipse closed loop gas-operated thermal bath facility 3.
Embodiment 5:
A kind of casting method of ingot, it is used to produce aluminium ingot, it adopts the open mold casting, it is after being cast to molten aluminum liquid in the ingot mould tool earlier, upper surface to the aluminium ingot in the process of setting carries out heat tracing, make this surperficial cooling velocity other surperficial cooling velocities less than ingot, up to the volume of motlten metal in the shrinkage process at aluminium ingot center obtain the abundant compensation of melt surface metal intact after, just stop to heat.
A kind of pouring device of ingot, as Fig. 1, Fig. 4, shown in Figure 5, it is used for the zinc ingot metal that production specification is 1000Kg, it adopts mould 1 casting, the cross section of mould 1 length direction is the rectangular build open containers of T type wide at the top and narrow at the bottom, stay-warm case 5 is the indent inner chambers that are provided with heater, the cover that periphery docks with the mould openings edge, electric heater unit 4 has the plate shaped heater of plane heating face in the stay-warm case 5, plate shaped heater is to constitute heating surface by the heat radiation tube series connection, the shape of heating surface and aluminium ingot surface adapt, the area of heating surface is 1/4 of an aluminium ingot upper surface area, and heat radiation tube is the quartz ampoule of in-built electrical heated filament.
The using method of this device is with reference to embodiment 1, and difference is that used heater is an electric heater unit 4.
Embodiment 6:
A kind of casting method of ingot, it is used to produce aluminium ingot, it adopts the open mold casting, it is after being cast to molten aluminum liquid in the ingot mould tool earlier, upper surface to the aluminium ingot in the process of setting carries out heat tracing, make this surperficial cooling velocity other surperficial cooling velocities less than ingot, up to the volume of motlten metal in the shrinkage process at aluminium ingot center obtain the abundant compensation of melt surface metal intact after, just stop to heat.
A kind of pouring device of ingot, as Fig. 1, Fig. 4, shown in Figure 5, it is used for the zinc ingot metal that production specification is 1700Kg, it adopts mould 1 casting, the cross section of mould 1 length direction is the rectangular build open containers of T type wide at the top and narrow at the bottom, stay-warm case 5 is the indent inner chambers that are provided with heater, the cover that periphery docks with the mould openings edge, electric heater unit 4 has the plate shaped heater of plane heating face in the stay-warm case 5, plate shaped heater is to constitute heating surface by the heat radiation tube series connection, the shape of heating surface and aluminium ingot surface adapt, the area of heating surface is 1/2 of an aluminium ingot upper surface area, and heat radiation tube is the quartz ampoule of in-built electrical heated filament.
The using method of this device is with reference to embodiment 1, and difference is that used heater is an electric heater unit 4.
Claims (9)
1, a kind of casting method of ingot, it is adapted to adopt the open type die casting, it is characterized in that: it is after being cast to motlten metal in the ingot mould tool earlier, heat tracing is carried out at least one surface to the ingot in the process of setting, make this surperficial cooling velocity other surperficial cooling velocities less than ingot, up to the volume of motlten metal in the shrinkage process at ingot center obtain the abundant compensation of melt surface metal intact after, just stop to heat.
2, the casting method of ingot according to claim 1 is characterized in that: described ingot is any in zinc-base alloy ingot, aluminium ingot, silver ingot, the zinc ingot metal.
3, the casting method of ingot according to claim 1 is characterized in that: described heat tracing mode is combustion gas heating or electrical heating.
4, a kind of pouring device of ingot, it comprises casting mechanism, mould, described mould is an open containers, it is characterized in that: also be provided with the stay-warm case that its opening is covered on the described mould, be provided with heater in the described stay-warm case.
5, the pouring device of ingot according to claim 4, it is characterized in that: described mould is that the cross section is the open containers of T type wide at the top and narrow at the bottom, described stay-warm case is to have the indent inner chamber that heater is set, the cover that periphery docks with the mould openings edge, and the heater in the described stay-warm case is gas-operated thermal bath facility or electric heater unit.
6, the pouring device of ingot according to claim 5, it is characterized in that: described electric heater unit is the plate shaped heater with plane heating face, described plate shaped heater is to constitute heating surface by the heat radiation tube series connection, the shape of described heating surface and zinc ingot metal surface adapt, and the area of described heating surface is 1/4～1/2 of a zinc ingot metal upper surface area.
7, the pouring device of ingot according to claim 6 is characterized in that: described heat radiation tube is the quartz ampoule of in-built electrical thermal element.
8, the pouring device of ingot according to claim 4, it is characterized in that: the gas-operated thermal bath facility in the described stay-warm case is the ellipse closed loop gas-operated thermal bath facility that is connected with Gas Pipe, described ellipse closed loop gas-operated thermal bath facility is for simultaneously being provided with the ellipse closed loop steel pipe of a plurality of ventholes, and the quantity of described venthole is 8～20;
9, the pouring device of ingot according to claim 4, it is characterized in that: the window type gas-operated thermal bath facility that the gas-operated thermal bath facility in the described stay-warm case is connected with Gas Pipe, steel pipe parallel by many, that one side is provided with venthole is formed, the quantity of the venthole of described window type gas-operated thermal bath facility is 20～50.
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| CN2008101439010A CN101428334B (en) | 2008-12-11 | 2008-12-11 | Casting device for ingot metal |
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| CN2008101439010A CN101428334B (en) | 2008-12-11 | 2008-12-11 | Casting device for ingot metal |
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| CN101428334B CN101428334B (en) | 2011-11-30 |
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Cited By (9)
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| CN101559478B (en) * | 2009-05-15 | 2010-09-29 | 赤峰中色库博红烨锌业有限公司 | Alloy ingot casting mould with cooling device and ingot casting method thereof |
| CN102430726A (en) * | 2011-12-26 | 2012-05-02 | 昆山全亚冠环保科技有限公司 | Method for increasing yield rate of casting ingots |
| CN104128572A (en) * | 2014-08-01 | 2014-11-05 | 昆明理工大学 | Composite zinc ingot die and manufacturing method thereof |
| CN105008064A (en) * | 2013-02-04 | 2015-10-28 | 美国阿尔美有限公司 | Process and apparatus for minimizing potential for explosions in direct chill casting aluminum lithium alloys |
| CN106378426A (en) * | 2016-12-14 | 2017-02-08 | 江西自立环保科技有限公司 | Novel silver ingot forming device |
| US9849507B2 (en) | 2012-05-17 | 2017-12-26 | Almex USA, Inc. | Process and apparatus for minimizing the potential for explosions in the direct chill casting of aluminum lithium alloys |
| US9936541B2 (en) | 2013-11-23 | 2018-04-03 | Almex USA, Inc. | Alloy melting and holding furnace |
| CN107931549A (en) * | 2017-12-29 | 2018-04-20 | 安徽富凯特材有限公司 | A kind of Heat preservation cover for ingot mould |
| CN114378265A (en) * | 2020-10-18 | 2022-04-22 | 赤峰中色锌业有限公司 | Zinc alloy cooling forming process method |
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2008
- 2008-12-11 CN CN2008101439010A patent/CN101428334B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101559478B (en) * | 2009-05-15 | 2010-09-29 | 赤峰中色库博红烨锌业有限公司 | Alloy ingot casting mould with cooling device and ingot casting method thereof |
| CN102430726A (en) * | 2011-12-26 | 2012-05-02 | 昆山全亚冠环保科技有限公司 | Method for increasing yield rate of casting ingots |
| US10646919B2 (en) | 2012-05-17 | 2020-05-12 | Almex USA, Inc. | Process and apparatus for direct chill casting |
| US10946440B2 (en) | 2012-05-17 | 2021-03-16 | Almex USA, Inc. | Process and apparatus for minimizing the potential for explosions in the direct chill casting aluminum alloys |
| US9849507B2 (en) | 2012-05-17 | 2017-12-26 | Almex USA, Inc. | Process and apparatus for minimizing the potential for explosions in the direct chill casting of aluminum lithium alloys |
| US9895744B2 (en) | 2012-05-17 | 2018-02-20 | Almex USA, Inc. | Process and apparatus for direct chill casting |
| US9950360B2 (en) | 2013-02-04 | 2018-04-24 | Almex USA, Inc. | Process and apparatus for minimizing the potential for explosions in the direct chill casting of lithium alloys |
| US10864576B2 (en) | 2013-02-04 | 2020-12-15 | Almex USA, Inc. | Process and apparatus for minimizing the potential for explosions in the direct chill casting of lithium alloys |
| US9616493B2 (en) | 2013-02-04 | 2017-04-11 | Almex USA, Inc. | Process and apparatus for minimizing the potential for explosions in the direct chill casting of aluminum lithium alloys |
| CN105008064B (en) * | 2013-02-04 | 2017-06-06 | 美国阿尔美有限公司 | For the method and apparatus that the possibility exploded in the direct cast-in chills for making aluminium lithium alloy is minimized |
| US9764380B2 (en) | 2013-02-04 | 2017-09-19 | Almex USA, Inc. | Process and apparatus for direct chill casting |
| CN105008064A (en) * | 2013-02-04 | 2015-10-28 | 美国阿尔美有限公司 | Process and apparatus for minimizing potential for explosions in direct chill casting aluminum lithium alloys |
| US9936541B2 (en) | 2013-11-23 | 2018-04-03 | Almex USA, Inc. | Alloy melting and holding furnace |
| US10932333B2 (en) | 2013-11-23 | 2021-02-23 | Almex USA, Inc. | Alloy melting and holding furnace |
| CN104128572A (en) * | 2014-08-01 | 2014-11-05 | 昆明理工大学 | Composite zinc ingot die and manufacturing method thereof |
| CN104128572B (en) * | 2014-08-01 | 2016-05-25 | 昆明理工大学 | A kind of composite zinc ingot metal mould and preparation method thereof |
| CN106378426B (en) * | 2016-12-14 | 2019-01-29 | 江西自立环保科技有限公司 | A kind of novel silver ingot molding machine |
| CN106378426A (en) * | 2016-12-14 | 2017-02-08 | 江西自立环保科技有限公司 | Novel silver ingot forming device |
| CN107931549A (en) * | 2017-12-29 | 2018-04-20 | 安徽富凯特材有限公司 | A kind of Heat preservation cover for ingot mould |
| CN114378265A (en) * | 2020-10-18 | 2022-04-22 | 赤峰中色锌业有限公司 | Zinc alloy cooling forming process method |
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| CN101428334B (en) | 2011-11-30 |
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