CN115921786A - Metal continuous casting device and method - Google Patents
Metal continuous casting device and method Download PDFInfo
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- CN115921786A CN115921786A CN202310026580.0A CN202310026580A CN115921786A CN 115921786 A CN115921786 A CN 115921786A CN 202310026580 A CN202310026580 A CN 202310026580A CN 115921786 A CN115921786 A CN 115921786A
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Abstract
The invention relates to a metal continuous casting device and a metal continuous casting method, which comprise a base, wherein the base is provided with a lifting mechanism and a limiting mechanism, the lifting mechanism is connected with a casting mold, the side part of the casting mold is provided with a vertically arranged long strip-shaped molten metal inlet, the limiting mechanism comprises a support, the top of the support is provided with a pouring cup, the pouring cup extends into the molten metal inlet, a molten metal flow channel inside the pouring cup is communicated with a cavity closed at the bottom in the casting mold, and the bottom surface of the pouring cup is fixedly provided with a sealing strip which is embedded into the molten metal inlet and used for plugging the molten metal inlet.
Description
Technical Field
The invention relates to the technical field of casting, in particular to a metal continuous casting device and a metal continuous casting method.
Background
The statements herein merely provide background information related to the present disclosure and may not necessarily constitute prior art.
At present, an ingot mold casting process or a bottom casting process is adopted for casting metal such as copper alloy, the ingot mold casting process is to pour copper alloy molten metal into an ingot mold from the upper part of the ingot mold by a ladle, and the molten metal directly falls into the bottom of the ingot mold from a high position, so that the problems of splashing, cold shut and the like are easily caused, and the casting quality is influenced. The bottom casting process is also called as a bottom casting method, and the molten metal passes through a central conduit, passes through a runner brick and then is poured into the steel ingot mould from the bottom upwards.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a metal continuous casting device, which overcomes the defects in an ingot mold casting process and a bottom mold casting process.
In order to achieve the purpose, the invention is realized by the following technical scheme:
in a first aspect, an embodiment of the invention provides a metal continuous casting device, which comprises a base, wherein the base is provided with a lifting mechanism and a limiting mechanism, the lifting mechanism is connected with a casting mold, the side part of the casting mold is provided with a vertically arranged long strip-shaped molten metal inlet, the limiting mechanism comprises a support, the top of the support is provided with a pouring cup, the pouring cup extends into the molten metal inlet, a molten metal flow channel inside the pouring cup is communicated with a cavity with a closed bottom end in the casting mold, and a sealing strip which is embedded into the molten metal inlet and used for sealing the molten metal inlet is fixed on the bottom surface of the pouring cup.
Optionally, the lifting mechanism comprises a linear sliding seat fixed with the base, a transmission beam is connected to the linear sliding seat in a sliding mode, the transmission beam is connected with the lifting platform through a connecting beam, the lifting platform is connected with the casting mold, and the transmission beam is connected with a lifting driving piece installed on the base.
Optionally, the lifting driving member adopts a lifting hydraulic cylinder.
Optionally, a mold base is arranged at the bottom of the casting mold, the casting mold is detachably connected with the mold base, the mold base is fixed on the lifting platform, and the mold base is made of a heat insulating material.
Optionally, the casting mold is formed by detachably connecting a first mold part and a second mold part, and the first mold part and the second mold part form a cavity;
optionally, the two ends of the cavity are open, the bottom of the cavity can be plugged by a cushion block, and the cushion block is used for receiving molten metal.
In a second aspect, embodiments of the present invention provide a method of metal continuous casting apparatus, comprising the steps of:
the lifting mechanism drives the casting mold to an initial position, so that a molten metal flow channel in the pouring cup is communicated with an inner cavity of the casting mold, and the sealing strip seals the bottom end part of a molten metal inlet of the casting mold;
injecting molten metal into a closed space at the bottom of a cavity formed by the casting mold and the sealing strip through the pouring cup;
after the injected molten metal is solidified, the pouring cup and the sealing strip are kept still, the casting mold descends at a constant speed along with the driving of the lifting mechanism, and the molten metal is poured into the casting mold at a constant speed through the pouring cup so as to keep a constant distance between the molten metal flow channel and the molten metal level in the casting mold until the casting is finished.
Optionally, before casting, a mold release agent is coated on the inner surfaces of the molten metal flow channel and the sealing strip in the casting mold and the pouring cup, and then the casting mold is baked to a set temperature.
Optionally, the set temperature is 200 ℃ to 300 ℃.
Optionally, the release agent is zircon powder.
Optionally, the casting mold is formed by detachably connecting a first mold part and a second mold part, and before casting, a fixing clamp is sleeved between the upper parts of the first mold part and the second mold part.
The invention has the following beneficial effects:
the casting device and the casting method are characterized in that a casting mold is connected with a lifting mechanism, a vertically arranged long strip-shaped molten metal inlet is formed in the side portion of the casting mold, the molten metal inlet is communicated with a molten metal flow channel in a pouring cup, the bottom of a mold cavity is closed, a sealing strip is arranged on the bottom surface of the pouring cup, when the casting device is used for casting, a sealing space between the sealing strip and the bottom of the mold cavity of the casting mold can be cast through the pouring cup, a new mold base is formed after the molten metal is solidified, then the casting mold can descend at a constant speed under the driving of the lifting mechanism, the pouring cup pours the molten metal into the casting mold at a constant speed, the molten metal enters the mold cavity from the side portion of the casting mold in the whole process, the height drop of the molten metal is small, compared with ingot mold casting, the problems of splashing, cold shut and the like caused by the fact that the molten metal directly falls from a high position are reduced, and compared with a bottom casting process, the casting speed is adjusted according to the molten metal cooling speed, the molten metal can be solidified and cast while playing a role of feeding and can obviously reduce the generation of corner materials such as pouring gates and riser.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
FIG. 1 is a schematic view of the overall structure of embodiment 1 of the present invention;
FIG. 2 is a top plan view of a pouring cup in cooperation with a casting mold and a spacer in accordance with example 1 of the present invention;
FIG. 3 is a schematic view showing the combination of a pouring cup, a sealing strip, a casting mold and a cushion block in example 1 of the present invention;
FIG. 4 is a schematic view of the combination of the first mold part and the second mold part and the fixation thereof to the mold base according to embodiment 1 of the present invention;
the casting device comprises a base 1, a support 2, a pouring cup 3, a sealing strip 4, a linear sliding seat 5, a transmission beam 6, a connecting beam 7, a lifting platform 8, a lifting hydraulic cylinder 9, a casting mold 10, a mold base 11, a cushion block 12, a screw rod 13, a fixing bolt 14 and a fixing clamp 15.
Detailed Description
For convenience of description, the words "up" and "down" when used in this specification shall refer to directions consistent with the up and down directions of the drawings themselves, and not to structural limitations, but merely to facilitate the description of the invention and to simplify the description, and shall not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore shall not be construed as limiting the invention.
Example 1
The embodiment provides a metal continuous casting device, which comprises a base 1, a lifting mechanism, a casting mold, a limiting mechanism, a pouring cup, a sealing strip and a cushion block, as shown in figures 1 to 4.
The base 1 is used for being fixed on a horizontal foundation, and the stability of the whole casting device is guaranteed. In this embodiment, the base 1 has a rectangular structure and serves as a bearing member for other components.
Be provided with elevating system and stop gear on the base 1, elevating system is connected with casting die utensil, can drive casting die utensil and be elevating movement, stop gear includes support 2, and the top of support 2 is provided with pouring basin 3, and the bottom surface of pouring basin 3 is provided with seals strip 4, and during the casting, pouring basin 3 and seal strip 4 all fixed.
Elevating system includes sharp slide 5, and 5 bottom of sharp slide and base 1 vertical fixation play the guide effect to elevating movement, for the fixed strength that increases sharp slide 5 and base 1, guarantee the straightness that hangs down of sharp slide 5, are provided with the stiffener between sharp slide 5 and the base 1.
The linear sliding seat 5 is connected with a transmission beam 6 in a sliding manner, and the transmission beam 6 can slide along the linear sliding seat 5 to perform lifting movement. The transmission beam adopts a U-shaped structure, and the vertical parts at the two ends of the transmission beam are connected with the linear sliding seat 5 in a sliding way.
The horizontal part of the top end of the transmission beam 6 is fixed with the top end of the connecting beam 7, and the bottom end of the connecting beam 7 is connected with the lifting platform 8. The transmission beam 6 can transmit the lifting motion to the lifting platform 8 through the connecting beam 7, and then drive the lifting platform 8 to do the lifting motion.
Casting die utensil 10 can dismantle fixed connection with lift platform 8, can be along with lift platform 8 and do elevating movement, casting die utensil 10 is close to stop gear's lateral part and is provided with the molten metal import, and the molten metal import adopts the rectangular structure of vertical setting, and the molten metal import communicates with the inside die cavity of casting die utensil.
The support 2 includes the second support portion at first support portion and first support portion top, and first support portion includes two parallel arrangement's curb plate, is equipped with a plurality of horizontal boards and vertical board between two curb plates, and second support portion adopts square steel to make, and its bottom mounting is in the horizontal board middle part position of the top, and its top is fixed with pouring basin 3, inside the play liquid end of pouring basin 3 stretched into the molten metal import, the molten metal runner had been seted up to the top surface of pouring basin, and the molten metal runner includes receiving portion and mobile portion, and receiving portion is used for receiving the molten metal that the shake package was poured into, mobile portion one end is connected to receiving portion, and the other end communicates with casting die utensil's die cavity for with the leading-in casting die cavity of molten metal.
The bottom surface of the part, extending into the molten metal inlet, of the pouring cup 3 is fixed to the top end of the sealing strip 4, the outer side surface of the sealing strip 4 is fixed to the second support part, and the shape of the sealing strip is matched with that of the molten metal inlet, so that the molten metal inlet can be blocked.
In order to realize demolding, the casting mold is formed by detachably connecting a first mold part and a second mold part which are the same in shape through a threaded fastener, the threaded fastener adopts a plurality of screws 13, the screws penetrate through the first mold part and the second mold part through fixing holes formed in the first mold part and the second mold part, two ends of the screws are in threaded connection with fixing nuts, the fixing nuts on two sides tightly press and fix the first mold part and the second mold part, grooves are formed in the surfaces, used for splicing, of the first mold part and the second mold part, and after the first mold part and the second mold part are connected through the screws 13, the two grooves form a forming cavity.
In other embodiments, the bottom ends of the grooves of the first mold part and the second mold part are integrally provided with a blocking part, and the bottom ends of the cavities are closed by the blocking part after splicing.
The bottom of each of the first mold part and the second mold part is provided with a mold base 11, and the mold bases 11 are provided with fixing holes and are fixed with the lifting platform through the fixing holes and bolts.
In this embodiment, the bottom of the first mold part is provided with a fixing hole, the first mold part is detachably and fixedly connected with the mold base through a fixing bolt 14, in some other embodiments, the second mold part may be fixed with the mold base through a bolt, or both the first mold part and the second mold part are fixed with the mold base through a bolt.
The first mould part and the second mould part are made of pig iron materials, the mould base is made of heat insulation materials, and the mould base is arranged, so that heat of a casting mould can be prevented from being transferred to the lifting platform to cause heat damage of the lifting mechanism.
Example 2
This example provides the method of the metal continuous casting apparatus of example 1, wherein the metal is a copper alloy, comprising the steps of:
step 1: before the casting mold 10 is installed on the lifting platform 8, a release agent is sprayed on the inner surface of the casting mold 10, the surface of the molten metal flow channel of the pouring cup 3, the inner side surface of the sealing strip 4 and the surface of the cushion block, and then the casting mold is baked to a set temperature.
In this embodiment, the release agent is zircon powder, the set temperature is 200 ℃ to 300 ℃, and a person skilled in the art can select a proper release agent and set temperature according to actual needs.
Step 2: the first mould part of the casting mould is fixed on the mould base through the bolt, the second mould part is fixed with the first mould part through the screw 13, the cushion block is placed at the bottom of the cavity formed by the first mould part and the second mould part, the cushion block is placed on the mould base, and the top parts of the first mould part and the second mould part are sleeved with the fixing clamp 15 so as to prevent the liquid copper alloy from being cast into the casting mould, and the first mould part and the second mould part produce gap copper infiltration due to thermal expansion.
In this embodiment, mounting fixture 15 adopts U type structure, including first clamping part and the second clamping part that sets up respectively at first clamping part both ends, the third clamping part, second clamping part bottom is equipped with 90 the portion of bending and is equipped with first grip block at the portion of bending tip, third clamping part tip threaded connection has the supporting rod, the tip that the supporting rod is close to the second clamping part is equipped with the second grip block, the other end is equipped with the handle, overlap mounting fixture in casting die utensil top, make first grip block and the contact of first die part lateral surface, rotate the supporting rod through the handle, the axis direction motion is done to the supporting rod, the second grip block and the contact of second die part lateral surface, continue to rotate the supporting rod, first grip block and the tight casting die utensil upper portion of second grip block clamp.
And 3, step 3: the lifting hydraulic cylinder 9 works, the casting mold 10 is driven to move to the initial position through the lifting platform 8, and the sealing strip 4 is matched with the cushion block 12 to seal the bottom end position of the molten metal inlet of the casting mold 10 at the initial position.
And 4, step 4: when pouring is started, the liquid copper alloy ladle enters a molten metal runner of the pouring cup 3, then flows into a closed space formed between the sealing strip 4 at the bottom of the cavity of the casting mold 10 and the cushion block 12, and after the part of the liquid copper alloy is solidified, the part of the liquid copper alloy serves as a new mold base, then the lifting mechanism drives the casting mold 10 to descend at a constant speed, in the embodiment, the descending speed of the casting mold 10 is 29-31 mm/s, preferably 30mm/s, the pouring speed of the pouring cup 3 is adjusted according to the cooling speed of the copper alloy, the liquid copper alloy is poured into the casting mold at a constant speed through the pouring cup 3, and the pouring speed is determined according to the cooling speed of the copper alloy, so that the distance between the liquid level in the pouring mold and the liquid outlet end of the molten metal runner of the pouring cup is kept constant until the pouring is completed.
By adopting the casting device and method of the embodiment, in the whole process, the molten metal enters the cavity from the side part of the casting mold, the height drop of the molten metal is small, compared with ingot mold casting, the problems of splashing, cold shut and the like caused by the fact that the molten metal directly falls from a high position are reduced, and compared with a bottom casting process, the casting speed is adjusted according to the cooling speed of the molten metal during casting, the molten metal can be solidified and cast at the same time, the effect of feeding a riser is achieved, and the generation of leftover materials such as a riser, a pouring gate and the like can be obviously reduced.
The casting mould of this embodiment passes through the bolt and can dismantle with the mould base and be connected, belongs to easy dismouting structure, accomplishes the back when first set of casting mould casting, can pull down immediately and change second set of casting mould, continues to cast, realizes continuous casting, and work efficiency is high.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. The utility model provides a metal continuous casting device, a serial communication port, the on-line screen storage device comprises a base, the base is equipped with elevating system and stop gear, elevating system is connected with casting die utensil, casting die utensil's lateral part is equipped with the rectangular form metal liquid import of vertical setting, stop gear includes the support, the support top is equipped with the pouring basin, the pouring basin stretches into the metal liquid import, the inside metal liquid runner of pouring basin communicates with the bottom confined die cavity in the casting die utensil, pouring basin bottom surface is fixed with the embedding metal liquid import and carries out the strip of sealing of shutoff to the metal liquid import.
2. A metal continuous casting apparatus as claimed in claim 1, wherein said lifting mechanism comprises a linear slide fixed to the base, a drive beam slidably connected to the linear slide, the drive beam being connected to a lifting platform via a connecting beam, the lifting platform being connected to the casting mould, the drive beam being connected to a lifting drive member mounted to the base.
3. A metal continuous casting apparatus as claimed in claim 2, wherein said lift drive employs a lift cylinder.
4. A metal continuous casting apparatus as claimed in claim 1, wherein said casting mold is formed by detachably connecting a first mold portion and a second mold portion, the first mold portion and the second mold portion forming a cavity.
5. The continuous metal casting device as claimed in claim 4, wherein the cavity is open at both ends, and a bottom block is placed at the bottom of the cavity to block the bottom of the cavity, and the bottom block is used for receiving molten metal.
6. A method of metal continuous casting apparatus as claimed in any one of claims 1 to 5, comprising the steps of:
the lifting mechanism drives the casting mold to an initial position, so that a molten metal flow channel in the pouring cup is communicated with an inner cavity of the casting mold, and the sealing strip seals the bottom end part of a molten metal inlet of the casting mold;
injecting molten metal into a closed space at the bottom of a cavity formed by the casting mold and the sealing strip through the pouring cup;
after the injected molten metal is solidified, the pouring cup and the sealing strip are kept still, the casting mold descends at a constant speed under the driving of the lifting mechanism, and the molten metal is poured into the casting mold at a constant speed through the pouring cup so as to keep a constant distance between the molten metal flow channel and the molten metal level in the casting mold until the casting is finished.
7. The method of metal continuous casting according to claim 6, wherein before casting, a mold release agent is applied to the inner surfaces of the casting mold, the molten metal flow path in the pouring cup, and the sealing strip, and then baked to a set temperature.
8. The method of a metal continuous casting apparatus as claimed in claim 7, wherein the set temperature is 200 ℃ to 300 ℃.
9. The method of metal continuous casting apparatus according to claim 7, wherein the release agent is zircon powder.
10. The method for metal continuous casting according to claim 6, wherein the casting mold is formed by detachably coupling a first mold portion and a second mold portion, and a fixing jig is fitted between upper portions of the first mold portion and the second mold portion before casting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310026580.0A CN115921786A (en) | 2023-01-09 | 2023-01-09 | Metal continuous casting device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310026580.0A CN115921786A (en) | 2023-01-09 | 2023-01-09 | Metal continuous casting device and method |
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| CN115921786A true CN115921786A (en) | 2023-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202310026580.0A Pending CN115921786A (en) | 2023-01-09 | 2023-01-09 | Metal continuous casting device and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114672849A (en) * | 2022-04-29 | 2022-06-28 | 中国原子能科学研究院 | Rapid casting method of molten salt electrolysis metal |
| CN117680662A (en) * | 2024-02-04 | 2024-03-12 | 山西禧佑源民机完工中心有限公司 | Casting equipment for metal turbine blade of aviation aircraft |
-
2023
- 2023-01-09 CN CN202310026580.0A patent/CN115921786A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114672849A (en) * | 2022-04-29 | 2022-06-28 | 中国原子能科学研究院 | Rapid casting method of molten salt electrolysis metal |
| CN117680662A (en) * | 2024-02-04 | 2024-03-12 | 山西禧佑源民机完工中心有限公司 | Casting equipment for metal turbine blade of aviation aircraft |
| CN117680662B (en) * | 2024-02-04 | 2024-04-09 | 山西禧佑源民机完工中心有限公司 | Casting equipment for metal turbine blade of aviation aircraft |
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