CN110340329A - A kind of aluminium and aluminium alloy low pressure Semi-continuous casting crystallizer cooling system - Google Patents
A kind of aluminium and aluminium alloy low pressure Semi-continuous casting crystallizer cooling system Download PDFInfo
- Publication number
- CN110340329A CN110340329A CN201910802823.9A CN201910802823A CN110340329A CN 110340329 A CN110340329 A CN 110340329A CN 201910802823 A CN201910802823 A CN 201910802823A CN 110340329 A CN110340329 A CN 110340329A
- Authority
- CN
- China
- Prior art keywords
- water
- crystallizer
- water fender
- aluminium
- tank body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 21
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 17
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 16
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 14
- 239000004411 aluminium Substances 0.000 title claims abstract description 14
- 238000009749 continuous casting Methods 0.000 title claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 75
- 239000000498 cooling water Substances 0.000 claims abstract description 26
- 238000007789 sealing Methods 0.000 claims abstract description 20
- 238000003466 welding Methods 0.000 claims abstract description 5
- 230000000903 blocking effect Effects 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 238000005266 casting Methods 0.000 abstract description 35
- 238000000034 method Methods 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000005204 segregation Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000007569 slipcasting Methods 0.000 description 1
- 239000012808 vapor phase Substances 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
-
- 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
- B22D11/055—Cooling the moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D18/00—Pressure casting; Vacuum casting
- B22D18/04—Low pressure casting, i.e. making use of pressures up to a few bars to fill the mould
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Abstract
The present invention relates to a kind of aluminium and aluminium alloy low pressure Semi-continuous casting crystallizer cooling systems, including tank body, crystallizer ontology, fixed skeleton and water fender；Tank body and crystallizer ontology are sealed by a seal ring, along four fixed skeletons of low welding uniformly distributed outside crystallizer cylindrical body between water tank bottom plate and top plate, water fender is arranged in water tank by fastener, water fender and crystallizer body outer surface keep certain distance, and cavity between the two forms flow of cooling water channel；The bottom of water fender and the bottom plate of tank body flush, and the top of water fender and the top plate of tank body maintain a certain distance, to form the flow channel of cooling water.This system changes the type of flow of the cooling water in water tank by setting water fender, ensure there is the cooling water continuously flowed process at sealing ring, it is persistently cooling to sealing ring, avoid sealing ring from being scorched in casting process by high temperature, to improve the stability of casting.
Description
Technical field
The present invention relates to aluminium and aluminium alloy ingots semi-continuous casting technical field, specially a kind of aluminium and aluminium alloy low pressure partly connect
Continuous casting crystallizer cooling system.
Background technique
Early stage aluminium and aluminum alloy circular ingot half-continuous casting field generally use the direct-cooled casting (DC) of tradition, but casting rod is also easy to produce
The metallurgical imperfections such as surface defect and segregation.To being transformed on the basis of direct-cooled casting, generate in succession hot direct casting make, Air-slip Casting etc.
Foundry engieering.Currently, popular advanced casting system will count the low pressure casting (LPC) of Hydro in the world.The foundry engieering
Make in hot direct casting, oil-air lubrication on the basis of also add Low Pressure Casting Technology, improve in casting rod surface quality and metallurgical segregation
Aspect significant effect, casting rod surface smoothness and structural constituent uniformity are substantially better than the casting rod of conventional method production；Low pressure casting
It makes technology and increases mould cover board compared to the mould of other casting technologies, running channel and crystallizer are in air-tight state inside mould,
Molten aluminum surface inside mould is pumped by negative pressure by vacuum generator in casting process, aluminium in crystallizer is made by siphon principle
Liquid surface is under atmosphere pressure state, to realize low pressure casting.In addition, the height of mould lifting can be controlled automatically by PLC
System, in conjunction with vacuum cavitations, so that the highly automated adjustment of crystallization becomes a reality；It is the same with other casting systems, low pressure casting system
System in crystallizer lower edge opens up single water spray sky to improve secondary cooling intensity, thus further improvement ingot surface quality and interior
Portion's tissue.It is above to improve so that the system adapts to 1xxx-7xxx, more than 520 kinds of casting rods of diameter phi 127- φ.
The core ideas of Low Pressure Casting Technology is the siphonage generated by suction function, realizes molten aluminum in crystallizer
Surface is in atmospheric pressure state, and one of key of the technology is to ensure that the sealing of each associated components connection is tight, and LPC passes through resistance to height
(< 400 DEG C) of warm rubber ring sealings accurately control vacuum magnitude to realize, if sealing ring damage is poorly sealed, will lead to negative
Reduce off-flavor is often or disappearance, siphon balance are broken, casting failure；In former design scheme, the flowing of cooling water is mainly concentrated in water tank
In water tank floor portions cooling water, and it is located at water tank upper and is substantially at not flow regime close to the cooling water of sealing ring, is tying
In brilliant device under the hot long-time radiation regimes of high temperature molten aluminum, easily cause this part water temperature locally excessively high (region F in such as Fig. 4),
The water for causing part and sealing ring to contact is in the vapor phase of high temperature and pressure；Found in production practices, production φ 460 with
When upper major diameter casting rod, since casting speed is slower, liquid cave is deeper, and crystallization height is higher, for the dependent part of crystallizer cooperation
Part heat effect is big, it is easier to scorch the sealing ring between crystallizer and water tank, cooling water is caused to enter crystallizer, casting is caused to be lost
It loses, and then increases the cost of production.In order to ensure casting continuous and stability, it is necessary to try to improve making for crystallizer sealing ring
Use the service life.
Summary of the invention
The object of the invention is to provide a kind of Novel water tank structure to solve the above-mentioned problems in the prior art
Design changes the type of flow of the cooling water in water tank, it is ensured that has the cooling water continuously flowed process at sealing ring, persistently to close
Seal is cooling, avoids sealing ring from being scorched in casting process by high temperature, to improve the stability of casting.
A kind of aluminium and aluminium alloy low pressure Semi-continuous casting crystallizer cooling system are specifically provided, which is characterized in that
Including tank body, crystallizer ontology, fixed skeleton and water fender；
The tank body and crystallizer ontology are sealed by a seal ring, along crystallizer between water tank bottom plate and top plate
Uniformly distributed four fixed skeletons of low welding, the water fender are arranged in water tank by fastener outside cylindrical body,
The outer rim of water fender and tank body keeps certain distance M, and the cavity between water fender and crystallizer ontology forms cooling
Water first flow channel；
The bottom of water fender and the bottom plate of tank body flush, the top plate of the top of water fender and tank body keep it is certain away from
From L, to form the second flow path of cooling water.
Further, fixed skeleton is U-shaped structure.
Further, water fender is two pieces of semicircular structures, and two pieces of semicircle water fenders are looped around crystallizer ontology appearance
Face forms complete round water fender, 2 ± 0.5mm of water blocking plate thickness.
Further, L control is in 15-20mm, the M control in 15-20mm, the water blocking plate thickness 2 ±
0.5mm。
Further, fixed skeleton, water fender and fastener are all made of stainless steel material.
The beneficial effects of the present invention are:
One, water tank has been transformed in the present invention, in casting cooling procedure, realizes cooling water and first fills water tank cavity on the outside of water fender
A, the water channel B that then cooling water is formed by water fender and tank body top plate are formed into water fender and crystallizer ontology
Water channel C finally enters the inlet opening of crystallizer ontology, and then cools down to casting rod.Between tank body and crystallizer ontology
Sealing ring where regional area have continuous cooling water and pass through, realize effectively cooling to sealing ring, avoid close
High-temperature vapor is partially formed where seal and scorches sealing ring, to substantially reduce the probability of casting failure.
Two, the present invention only changes the flow regime of cooling water in water tank, does not change the water inlet structure of crystallizer ontology, can
To provide the identical water flow with original design, therefore it will not influence existing casting technique water flow.
Detailed description of the invention
Fig. 1 is the main view of cooling system of the present invention.
Fig. 2 is the schematic diagram in the main view of this Fig. 1 at A.
Fig. 3 is the main view B-B direction schematic diagram of Fig. 1.
Fig. 4 is flow of cooling water schematic diagram in former cooling system.
Fig. 5 is flow of cooling water schematic diagram in cooling system of the present invention.
Specific embodiment
Below with reference to specific drawings and examples, the invention will be further described.
It is as shown in Figs. 1-5: a kind of aluminium and aluminium alloy low pressure Semi-continuous casting crystallizer cooling system, which is characterized in that its
Middle arrow direction is the flow direction of cooling water.
Including tank body 1, crystallizer ontology 3, fixed skeleton 4 and water fender 5；
The tank body 1 and crystallizer ontology 3 are sealed by sealing ring 2, along knot between water tank bottom plate and top plate
Welding four uniformly distributed fixed skeletons 4 outside brilliant device cylindrical body, the water fender 5 are arranged in water tank by fastener 6,
Water fender 5 and 1 outer rim of tank body keep certain distance M, the cavity formation cooling water of water fender 5 and crystallizer ontology 3
First flow channel；
The bottom of water fender 5 and the bottom plate of tank body 1 flush, and the top of water fender 5 and the top plate of tank body 1 keep certain
Distance L, to form the second flow path of cooling water.
Further, fixed skeleton 4 is U-shaped structure.
Further, water fender is two pieces of semicircular structures, and two pieces of semicircle water fenders are looped around crystallizer ontology appearance
Face forms complete round water fender, 2 ± 0.5mm of water blocking plate thickness.
Further, L control is in 15-20mm, the M control in 15-20mm, the water blocking plate thickness 2 ±
0.5mm。
Further, fixed skeleton 4, water fender 5 and fastener 6 are all made of stainless steel material.Fastener is interior six herein
The matching piece of angle screw 6 and nut can prevent the rust corrosion in the case where water flow is impregnated using stainless steel material.All pads are adopted
With stainless steel electrode, and spray zinc processing after welding position polishing.
The fastener 6 of soket head cap screw and nut cooperation point is welded on U-shaped fixed skeleton 4, and electric screw driver may be implemented
Quick despatch soket head cap screw, and then the water fender that is easy for installation and removal greatly enhance the live adaptability of the design water tank.
It in casting cooling procedure, realizes cooling water and first fills water tank cavity A on the outside of water fender, then cooling water passes through
The water channel B that water fender and 1 top plate of tank body are formed, the water channel C formed into water fender and crystallizer ontology 3, finally enters
The inlet opening 7 of crystallizer ontology 1, and then casting rod is cooled down.2 institute of sealing ring between tank body 1 and crystallizer ontology 3
Regional area (in such as Fig. 4 at the F of region) have continuous cooling water and pass through, realize effectively cooling to sealing ring,
It avoids being partially formed high-temperature vapor where sealing ring 2 and scorches sealing ring, substantially reduce the probability of casting failure.
It should be noted last that the above specific embodiment is only used to illustrate the technical scheme of the present invention and not to limit it,
Although being described the invention in detail referring to example, those skilled in the art should understand that, it can be to the present invention
Technical solution be modified or replaced equivalently, without departing from the spirit and scope of the technical solution of the present invention, should all cover
In the scope of the claims of the present invention.
Claims (5)
1. a kind of aluminium and aluminium alloy low pressure Semi-continuous casting crystallizer cooling system, which is characterized in that
Including tank body (1), crystallizer ontology (3), fixed skeleton (4) and water fender (5)；
The tank body (1) and crystallizer ontology (3) are sealed by sealing ring (2), between water tank bottom plate and top plate
Along welding four fixed skeletons (4) uniformly distributed outside crystallizer cylindrical body, the water fender (5) is set by fastener (6)
It sets in water tank,
Water fender (5) and tank body (1) outer rim keep certain distance M, the sky between water fender (5) and crystallizer ontology (3)
Chamber forms cooling water first flow channel；
The bottom of water fender (5) and the bottom plate of tank body (1) flush, the top of water fender (5) and the top plate of tank body (1)
L is maintained a certain distance, to form the second flow path of cooling water.
2. a kind of aluminium as described in claim 1 and aluminium alloy low pressure Semi-continuous casting crystallizer cooling system, which is characterized in that
The fixed skeleton (4) is U-shaped structure.
3. a kind of aluminium as described in claim 1 and aluminium alloy low pressure Semi-continuous casting crystallizer cooling system, which is characterized in that
The water fender (8) is two pieces of semicircular structures, and two pieces of semicircle water fenders are looped around crystallizer body outer surface and are formed completely
Round water fender.
4. a kind of aluminium as described in claim 1 and aluminium alloy low pressure Semi-continuous casting crystallizer cooling system, which is characterized in that
The L control is in 15-20mm, and the M control is in 15-20mm, the 2 ± 0.5mm of water blocking plate thickness.
5. a kind of aluminium as described in claim 1 and aluminium alloy low pressure Semi-continuous casting crystallizer cooling system, which is characterized in that
Fixed skeleton (4), water fender (5) and fastener (6) are all made of stainless steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910802823.9A CN110340329A (en) | 2019-08-28 | 2019-08-28 | A kind of aluminium and aluminium alloy low pressure Semi-continuous casting crystallizer cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910802823.9A CN110340329A (en) | 2019-08-28 | 2019-08-28 | A kind of aluminium and aluminium alloy low pressure Semi-continuous casting crystallizer cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110340329A true CN110340329A (en) | 2019-10-18 |
Family
ID=68181340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910802823.9A Pending CN110340329A (en) | 2019-08-28 | 2019-08-28 | A kind of aluminium and aluminium alloy low pressure Semi-continuous casting crystallizer cooling system |
Country Status (1)
| Country | Link |
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| CN (1) | CN110340329A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112170763A (en) * | 2020-09-25 | 2021-01-05 | 李车 | Casting die for casting ultra-high temperature metal piece |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0035958A2 (en) * | 1980-03-07 | 1981-09-16 | Herbert Dipl.-Ing. Woithe | Mold for continuous casting |
| JPH0293046U (en) * | 1989-01-06 | 1990-07-24 | ||
| JPH0999344A (en) * | 1995-10-05 | 1997-04-15 | Furukawa Electric Co Ltd:The | Mold for vertical semi-continuous casting of non-ferrous metallic slab |
| RU2281183C1 (en) * | 2004-12-30 | 2006-08-10 | Общество с ограниченной ответственностью "Инженерно-технологический центр" | Mold for vertical casting of ingots of aluminum and its alloys |
| CN1843661A (en) * | 2006-04-29 | 2006-10-11 | 东北大学 | Method and equipment for inhibiting crack of high-alloying aluminium alloy square billet |
| CN101185961A (en) * | 2007-11-30 | 2008-05-28 | 苏州有色金属研究院有限公司 | Electromagnetic sensor for aluminum alloy electromagnetic field auxiliary semi-continuous casting |
| CN101185958A (en) * | 2007-11-30 | 2008-05-28 | 苏州有色金属研究院有限公司 | Crystallizer for aluminum alloy electromagnetic field auxiliary semi-continuous casting |
| CN102294445A (en) * | 2011-08-17 | 2011-12-28 | 中国科学院金属研究所 | Auxiliary semi-continuous casting crystallizer for low-frequency pulsed magnetic field of magnesium alloy and application thereof |
| CN105598398A (en) * | 2016-01-14 | 2016-05-25 | 中色科技股份有限公司 | Method for semicontinuously casting high purity aluminum cast ingot through fine grain crystallizer |
| CN107243609A (en) * | 2017-06-16 | 2017-10-13 | 浙江天宁合金材料有限公司 | A kind of copper and copper alloy casting crystallizer |
| CN210587109U (en) * | 2019-08-28 | 2020-05-22 | 江苏亚太航空科技有限公司 | Cooling system of aluminum and aluminum alloy low-pressure semi-continuous casting crystallizer |
-
2019
- 2019-08-28 CN CN201910802823.9A patent/CN110340329A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0035958A2 (en) * | 1980-03-07 | 1981-09-16 | Herbert Dipl.-Ing. Woithe | Mold for continuous casting |
| JPH0293046U (en) * | 1989-01-06 | 1990-07-24 | ||
| JPH0999344A (en) * | 1995-10-05 | 1997-04-15 | Furukawa Electric Co Ltd:The | Mold for vertical semi-continuous casting of non-ferrous metallic slab |
| RU2281183C1 (en) * | 2004-12-30 | 2006-08-10 | Общество с ограниченной ответственностью "Инженерно-технологический центр" | Mold for vertical casting of ingots of aluminum and its alloys |
| CN1843661A (en) * | 2006-04-29 | 2006-10-11 | 东北大学 | Method and equipment for inhibiting crack of high-alloying aluminium alloy square billet |
| CN101185961A (en) * | 2007-11-30 | 2008-05-28 | 苏州有色金属研究院有限公司 | Electromagnetic sensor for aluminum alloy electromagnetic field auxiliary semi-continuous casting |
| CN101185958A (en) * | 2007-11-30 | 2008-05-28 | 苏州有色金属研究院有限公司 | Crystallizer for aluminum alloy electromagnetic field auxiliary semi-continuous casting |
| CN102294445A (en) * | 2011-08-17 | 2011-12-28 | 中国科学院金属研究所 | Auxiliary semi-continuous casting crystallizer for low-frequency pulsed magnetic field of magnesium alloy and application thereof |
| CN105598398A (en) * | 2016-01-14 | 2016-05-25 | 中色科技股份有限公司 | Method for semicontinuously casting high purity aluminum cast ingot through fine grain crystallizer |
| CN107243609A (en) * | 2017-06-16 | 2017-10-13 | 浙江天宁合金材料有限公司 | A kind of copper and copper alloy casting crystallizer |
| CN210587109U (en) * | 2019-08-28 | 2020-05-22 | 江苏亚太航空科技有限公司 | Cooling system of aluminum and aluminum alloy low-pressure semi-continuous casting crystallizer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112170763A (en) * | 2020-09-25 | 2021-01-05 | 李车 | Casting die for casting ultra-high temperature metal piece |
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