CN106180600A - Magnesium alloy slab casting gas shield ring - Google Patents
Magnesium alloy slab casting gas shield ring Download PDFInfo
- Publication number
- CN106180600A CN106180600A CN201610783346.2A CN201610783346A CN106180600A CN 106180600 A CN106180600 A CN 106180600A CN 201610783346 A CN201610783346 A CN 201610783346A CN 106180600 A CN106180600 A CN 106180600A
- Authority
- CN
- China
- Prior art keywords
- magnesium alloy
- matrix
- venthole
- shield ring
- gas shield
- 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
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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
-
- 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
- B22D11/001—Continuous casting of metals, i.e. casting in indefinite lengths of specific alloys
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
The invention belongs to magnesium alloy cast apparatus field, be specifically related to a kind of magnesium alloy slab casting gas shield ring, including being fixed on crystallizer exit matrix ringwise, in described matrix, be provided with compression ring；Offering air inlet on described matrix outer wall, matrix inwall hoop tight distribution has some ventholes for spraying protection gas；Described compression ring all connects with venthole, air inlet；Described venthole opening direction is towards intrinsic silicon；By gas shield ring is arranged on crystallizer exit; utilize the air inlet injection protection gas inside matrix; under the guiding of venthole; protection gas is ejected into casting billet surface at an angle; forming protection, on the one hand the isolation water of two cold-zones, steam, air inversely enters inside crystallizer, prevents the security incidents such as burning, blast; on the other hand stop High Temperature Magnesium Alloy strand and the air contact just having gone out crystallizer, prevent casting billet surface from aoxidizing.
Description
Technical field
The invention belongs to magnesium alloy cast apparatus field, be specifically related to a kind of magnesium alloy slab casting gas shield ring.
Background technology
Owing to magnesium alloy has more active chemical property, under solution status or high temperature, easily because with empty gas and water
Deng the contact of material, cause casting billet surface severe oxidation, even produce the security incidents such as burning or blast.At existing magnesium alloy
In slab continuously or semi-continuously foundry engieering, crystallizer and two cold-zones are closely coupled, and strand leaves after crystallizer exports the completeest
In atmosphere, consequent problem has two: 1. cooling water, steam and the air of two cold-zones is easily by crystallization in full exposure
In spontaneous air gap enters crystallizer between device cooling wall and casting blank shell, there is severe compromise；2. leave crystallization
Although device outlet magnesium alloy strand coagulation forming, but temperature is the highest, with air contact after can produce the tightest
The oxidative phenomena of weight, affects surface quality.
Summary of the invention
The defect existed for prior art and deficiency, it is an object of the invention to provide a kind of magnesium alloy slab casting gas
Body protection ring, it is possible to be effectively improved magnesium alloy slab and cast continuously and semi-continuous casting safety and slab quality.
For achieving the above object, the present invention is by the following technical solutions:
A kind of magnesium alloy slab casting gas shield ring, including being fixed on crystallizer exit matrix ringwise, described
Compression ring it is provided with in matrix；Offering air inlet on described matrix outer wall, matrix inwall hoop tight distribution has some for spraying
Penetrate the venthole of protection gas；Described compression ring all connects with venthole, air inlet；Described venthole opening direction is in matrix
Portion.
Further, described venthole blowing angle is in the range of short transverse ± 30 °.
Further, described matrix is rectangular configuration.
Further, described matrix surface is reserved with the seam for fixing base.
Further, described matrix is evenly distributed with some for fixing fastening bolt deep hole.
Further, in described matrix, it is provided with at least one compression ring, in upper and lower structure distribution.
Further, described venthole a diameter of 2～4mm, described venthole presses spacing 15～30mm on matrix inwall
Equidistant arrangement.
Further, venthole ejection protection atmospheric pressure is: 0.1MPa～0.6MPa.
Further, the protection gas of described venthole injection uses SF6、N2And CO2One of which or several gaseous mixtures
Body.
Compared with prior art, the present invention has following useful technique effect: by gas shield ring is arranged on knot
Brilliant device exit, utilizes the air inlet injection protection gas inside matrix, under the guiding of venthole, by protection gas with certain angle
Degree is ejected into casting billet surface, forms protection, and on the one hand the isolation water of two cold-zones, steam, air inversely enters inside crystallizer,
Prevent the security incidents such as burning, blast, on the other hand stop High Temperature Magnesium Alloy strand and the air contact just having gone out crystallizer,
Prevent casting billet surface from aoxidizing.
Further, by arranging the blowing angle of venthole, enable protection gas that strand is fully wrapped around, it is ensured that strand
With air insulated.
Accompanying drawing explanation
Fig. 1 is the structural representation of gas shield ring of the present invention.
Fig. 2 is the A-A view of Fig. 1 of the present invention.
Fig. 3 is the B-B view of Fig. 2 of the present invention.
Fig. 4 is that the present invention assembles schematic diagram.
Wherein: 1 is compression ring；2 is air inlet；3 is venthole；4 is seam；5 is fastening bolt deep hole；6 is matrix；7 are
Crystallizer.
Detailed description of the invention
Below in conjunction with the accompanying drawings the present invention is described in further detail
Seeing Fig. 1-3, the magnesium alloy slab casting gas shield ring that the present invention provides, including being fixed on crystallizer exit
Matrix 6 ringwise, matrix 6 is to mate rectangular configuration with casting blank shape and size；It is provided with at least one in described matrix 6
Compression ring 1, the quantity of compression ring can be arranged as required to 1 or a plurality of；When being provided with two and during above compression ring 1, in up-down structure
Distribution；Offering air inlet 2 on described matrix 6 outer wall, matrix 6 inwall hoop tight distribution has some for spraying protection gas
Venthole 3；Described compression ring 1 all connects with venthole 3, air inlet 2；Described venthole 3 opening direction is internal towards matrix 6,
Venthole 3 blowing angle is in the range of short transverse ± 30 °.Venthole 3 a diameter of 2～4mm, venthole 3 is at matrix 6 inwall
Upper by spacing 15～30mm equidistant arrangement.
Described matrix 6 surface is reserved with the seam 4 for fixing base 1；It is evenly distributed with some for fixing on matrix 6
Fastening bolt deep hole 5.By reserved seam 4, fastening bolt counterbore 5, matrix 6 can be fixed to crystallizer outlet with two
Relevant position between cold-zone.
Venthole 3 ejection protection atmospheric pressure is: 0.1MPa～0.6MPa.The protection gas of injection can use SF6、N2And
CO2One of which, or several mixed gas.
Operation principle: see Fig. 4, the gas shield ring that the present invention provides is fixed on going out of crystallizer 7 by fastening bolt
Mouth position, matrix 6 shape of gas shield ring, size coordinate consistent with crystallizer 7 outlet.
Protection source of the gas introduces in the air inlet 2 of matrix 6 by the road, is then introduced in the compression ring 1 of matrix 6, protection gas via
Compression ring 1 is evenly distributed to each venthole 3, and under the guiding of venthole 3, protection gas is ejected into certain pressure and even angle
Casting billet surface, forms gas shield to strand.The concrete open pore size of venthole, spacing, with admission pressure, protection gas kind with
And depending on other technological parameters.And by designing the blowing angle of pore, it is possible to ensure that protection gas can be complete by strand
Parcel, it is ensured that strand and air insulated.
The present invention is typically located at crystallizer exit position, introduces gas shield mechanism between crystallizer and two cold-zones,
The protective gas of certain pressure is entered compression ring from air inlet, then sprays to magnesium alloy casting billet surface along each steam vent, mainly make
With there being two aspects: on the one hand make to be formed at this malleation, completely cut off the water of two cold-zones, steam, air inversely along crystallizer wall and casting
Air gap between base green shell enters in crystallizer, with the magnesium liquid generation vigorous reaction of molten condition, prevents the peaces such as burning, blast
Full accident；On the other hand stop High Temperature Magnesium Alloy strand and the air contact just having gone out crystallizer, prevent casting billet surface from aoxidizing.
Protective gas is after the air inlet access arrangement of the present invention, via the distribution of compression ring, can by venthole uniformly,
Spray to casting billet surface with multi-angle, continuously or semi-continuously cast for magnesium alloy slab and escort.
Claims (9)
1. magnesium alloy slab casting gas shield ring, it is characterised in that include being fixed on crystallizer exit ringwise
Matrix (6), is provided with compression ring (1) in described matrix (6)；Air inlet (2) is offered, in matrix (6) on described matrix (6) outer wall
Wall hoop tight distribution has some ventholes (3) for spraying protection gas；Described compression ring (1) all with venthole (3), air inlet
(2) connection；Described venthole (3) opening direction is internal towards matrix (6).
A kind of magnesium alloy slab casting gas shield ring the most according to claim 1, it is characterised in that described venthole
(3) blowing angle is in the range of short transverse ± 30 °.
A kind of magnesium alloy slab casting gas shield ring the most according to claim 1, it is characterised in that described matrix (6)
For rectangular configuration.
A kind of magnesium alloy slab casting gas shield ring the most according to claim 1, it is characterised in that described matrix (6)
Surface is reserved with the seam (4) for fixing base (1).
A kind of magnesium alloy slab casting gas shield ring the most according to claim 1, it is characterised in that described matrix (6)
On be evenly distributed with some for fixing fastening bolt deep hole (5).
A kind of magnesium alloy slab casting gas shield ring the most according to claim 1, it is characterised in that described matrix (6)
Inside it is provided with at least one compression ring (1), in upper and lower structure distribution.
A kind of magnesium alloy slab casting gas shield ring the most according to claim 1, it is characterised in that described venthole
(3) a diameter of 2～4mm, described venthole (3) presses spacing 15～30mm equidistant arrangement on matrix (6) inwall.
A kind of magnesium alloy slab casting gas shield ring the most according to claim 1, it is characterised in that venthole (3) sprays
Go out to protect the atmospheric pressure be: 0.1MPa～0.6MPa.
9. according to described in any one of claim 1-8 magnesium alloy slab cast gas shield ring, it is characterised in that described in give vent to anger
The protection gas that hole (3) is sprayed uses SF6、N2And CO2One of which or several mixed gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610783346.2A CN106180600A (en) | 2016-08-30 | 2016-08-30 | Magnesium alloy slab casting gas shield ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610783346.2A CN106180600A (en) | 2016-08-30 | 2016-08-30 | Magnesium alloy slab casting gas shield ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106180600A true CN106180600A (en) | 2016-12-07 |
Family
ID=58086170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610783346.2A Pending CN106180600A (en) | 2016-08-30 | 2016-08-30 | Magnesium alloy slab casting gas shield ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106180600A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106929847A (en) * | 2017-05-12 | 2017-07-07 | 温州大学 | Atmosphere protection component and laser melting coating atmosphere protection device |
| CN109365764A (en) * | 2018-12-19 | 2019-02-22 | 威海万华镁业有限公司 | A kind of novel cooling means applying to magnesium alloy semi-continuous casting and device |
| CN112974772A (en) * | 2021-02-08 | 2021-06-18 | 中国第一重型机械股份公司 | Method for preparing composite steel ingot |
Citations (7)
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|---|---|---|---|---|
| CH642575A5 (en) * | 1978-11-13 | 1984-04-30 | Timex Corp | MOLD FOR CONTINUOUS CONTINUOUS. |
| DE69609802T2 (en) * | 1995-05-12 | 2001-03-08 | Norsk Hydro As | Pouring device |
| CN1326829A (en) * | 2001-05-31 | 2001-12-19 | 上海交通大学 | Heating casting mold and gas film continuous casting method |
| CN1621179A (en) * | 2004-12-16 | 2005-06-01 | 上海交通大学 | Aluminium alloy gas film continuous casting crystallizer |
| CN104117639A (en) * | 2014-07-10 | 2014-10-29 | 中国重型机械研究院股份公司 | Magnesium alloy round billet continuous casting crystallizer |
| CN203992288U (en) * | 2014-07-10 | 2014-12-10 | 中国重型机械研究院股份公司 | A kind of magnesium alloy continuous casting mold of round billets structure |
| CN205996134U (en) * | 2016-08-30 | 2017-03-08 | 中国重型机械研究院股份公司 | Magnesium alloy slab casts gas shield ring |
-
2016
- 2016-08-30 CN CN201610783346.2A patent/CN106180600A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH642575A5 (en) * | 1978-11-13 | 1984-04-30 | Timex Corp | MOLD FOR CONTINUOUS CONTINUOUS. |
| DE69609802T2 (en) * | 1995-05-12 | 2001-03-08 | Norsk Hydro As | Pouring device |
| CN1326829A (en) * | 2001-05-31 | 2001-12-19 | 上海交通大学 | Heating casting mold and gas film continuous casting method |
| CN1621179A (en) * | 2004-12-16 | 2005-06-01 | 上海交通大学 | Aluminium alloy gas film continuous casting crystallizer |
| CN104117639A (en) * | 2014-07-10 | 2014-10-29 | 中国重型机械研究院股份公司 | Magnesium alloy round billet continuous casting crystallizer |
| CN203992288U (en) * | 2014-07-10 | 2014-12-10 | 中国重型机械研究院股份公司 | A kind of magnesium alloy continuous casting mold of round billets structure |
| CN205996134U (en) * | 2016-08-30 | 2017-03-08 | 中国重型机械研究院股份公司 | Magnesium alloy slab casts gas shield ring |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106929847A (en) * | 2017-05-12 | 2017-07-07 | 温州大学 | Atmosphere protection component and laser melting coating atmosphere protection device |
| CN106929847B (en) * | 2017-05-12 | 2022-11-25 | 温州大学 | Atmosphere protection assembly and laser cladding atmosphere protection device |
| CN109365764A (en) * | 2018-12-19 | 2019-02-22 | 威海万华镁业有限公司 | A kind of novel cooling means applying to magnesium alloy semi-continuous casting and device |
| CN112974772A (en) * | 2021-02-08 | 2021-06-18 | 中国第一重型机械股份公司 | Method for preparing composite steel ingot |
| CN112974772B (en) * | 2021-02-08 | 2022-07-15 | 中国第一重型机械股份公司 | Method for preparing composite steel ingot |
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| C06 | Publication | ||
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| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161207 |
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| RJ01 | Rejection of invention patent application after publication |