CN202155500U - Centrifugal casting gas protection device - Google Patents
Centrifugal casting gas protection device Download PDFInfo
- Publication number
- CN202155500U CN202155500U CN2011202582117U CN201120258211U CN202155500U CN 202155500 U CN202155500 U CN 202155500U CN 2011202582117 U CN2011202582117 U CN 2011202582117U CN 201120258211 U CN201120258211 U CN 201120258211U CN 202155500 U CN202155500 U CN 202155500U
- Authority
- CN
- China
- Prior art keywords
- bell
- jar
- mold cavity
- ladle
- casting
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a centrifugal casting gas protection device, which comprises a non-casting end gas blow pipe and a bell jar. The non-casting end gas blow pipe is a cover casing connected at a mold cavity non-casting end, the bottom side of the casing is provided with a first gas inlet hole, the bell jar is in a cone frustum structure with opening ends, a bell jar base for fixing is welded at the small opening end of the bell jar, and the diameter of the small opening end is larger than the outer diameter of a steel ladle chute nozzle fixed onto a steel ladle. During centrifugal casting, the centrifugal casting gas protection device is capable of effectively preventing secondary oxidization of liquid steel, and is easy in manufacture, low in cost and convenient in assembly and disassembly.
Description
Technical field
The utility model relates to a kind of centrifugally cast auxiliary equipment that is used for, especially a kind of when spun casting effective protection molten steel, prevent the gas shield device of secondary oxidation.
Background technology
In adopting spun casting technology casting cycle, molten steel need pass through slide mouth or chute etc. and inject mold cavities, and molten steel cooled and solidified moulding gradually in mold cavity is taken out from mould then.Contact with the air large tracts of land at the die cavity process of setting with molten steel in the process of molten steel, in this process, lack effectively protection, very easily cause the secondary oxidation of molten steel, have a negative impact watering the product quality that casts out through slide mouth or chute injection mold cavity.
The utility model content
The technical problem that the utility model will solve provides a kind of secondary oxidation that prevents molten steel effectively, and makes easily, and is with low cost, the spun casting gas shield device of easy accessibility.
For solving the problems of the technologies described above; The technical scheme that the utility model is taked is: a kind of spun casting gas shield device is characterized in that: comprise non-end gas blow pipe and the bell-jar of watering, said non-to water the end gas blow pipe be to be connected the non-lid shape housing that waters end of mold cavity; Said housing bottom side has first air admission hole; Said bell-jar is the circular cone bench-type structure of both ends open, and its osculum end is welded with the bell-jar base that is used for fixing, and osculum end diameter is greater than the external diameter of ladle slide mouth.
The big opening end of said bell-jar is welded with the ring pipe around end wall one circle, and said ring pipe is the round steel pipe that sidewall is evenly equipped with steam vent, and an end of ring pipe connects second air inlet, other end sealing.Protective gas (being generally inert gas) by second air inlet feeds is discharged by steam vent; Because steam vent faces the mold cavity end wall; Therefore protective gas can form the ring seal wall one, makes gas barrier in outside air and the bell-jar, prevents that air from getting into.
Said bell-jar base is the annular steel plate, near the position and the welding of said bell-jar osculum end of interior circle, near the bolt hole that the position is provided with and the ladle antetheca is fixed of cylindrical.
The annular diameter of said ring pipe equates with the internal diameter of said mold cavity.
The axial length of said bell-jar is less than the length of said ladle slide mouth.
The non-end (not pouring into an end of molten steel) that waters at mold cavity is installed the non-end gas blow pipe that waters, and protective gas flows into mold cavity through the non-end gas blow pipe that waters from the non-end that waters.Before casting, feed protective gas, the air in the mold cavity is got rid of, in the die cavity process of setting, keep ventilation at casting cycle and molten steel always, isolated molten steel contacts with air.
The end (pouring into an end of molten steel) that waters at mold cavity is installed bell-jar (tapering of bell-jar can be confirmed according to the flexible in size of mold cavity), and the bell-jar big opening end is provided with ring pipe, and ring pipe is provided with steam vent towards the mold cavity direction.The preceding protective gas that feeds of casting is got rid of the air between bell-jar and mold cavity and the bell-jar, pours in the die cavity process at molten steel in the die cavity process of setting, to keep ventilating with molten steel always, and isolated molten steel contacts with air.
Adopt the beneficial effect that technique scheme produced to be: (1) the utility model utilizes the space between bell-jar protection ladle and the mold cavity; Feed protective gas from non-second air inlet that waters end and ring pipe of mold cavity, can effectively prevent the secondary oxidation of molten steel in the spun casting process; (2) the utility model utilizes steel plate to be welded with just managing, and makes easily, and is with low cost, utilizes bolt to be connected with ladle, and dismounting is also very convenient.
Description of drawings
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is done further detailed explanation.
Fig. 1 is the structural representation of the utility model;
Wherein: 1, the non-end gas blow pipe that waters, 2, first air inlet, 3, mold cavity, 4, baffle plate, 5, molten steel; 6, ladle slips mouth, and 7, steam vent, 8, second air inlet, 9, bolt, 10, the ladle antetheca; 11, ring pipe, 12, bell-jar, 13, gusset, 14, the bell-jar base.
The specific embodiment
Can find out according to accompanying drawing 1; The utility model is specifically related to a kind of spun casting gas shield device, comprises non-end gas blow pipe 1 and the bell-jar 12 of watering, and the said non-end gas blow pipe 1 that waters is for being connected the mold cavity 3 non-lid shape housings that water end; Said housing bottom side has first air admission hole 2; The circular cone bench-type structure that said bell-jar 12 is a both ends open, its osculum end is welded with the bell-jar base 14 that is used for fixing, and osculum end diameter is greater than the external diameter of ladle slide mouth 6.The big opening end of said bell-jar 12 is welded with the ring pipe 11 around end wall one circle; Said ring pipe 11 is evenly equipped with the round steel pipe of steam vent 7 for sidewall; One end of ring pipe 11 connects second air inlet 8, other end sealing, and bell-jar base 14 is the annular steel plate; Near the position of interior circle and the welding of said bell-jar 12 osculum ends, be provided with the bolt hole fixing with ladle antetheca 10 near the position of cylindrical.In order to guarantee the reliability of the utility model, between bell-jar 12 and bell-jar base 14, circumferentially weld some gussets 13 usually.
The practical implementation method of the utility model is: at first be placed in ladle slide mouth 6 peripheries to bell-jar 12; And be fixed in ladle antetheca 10 through the bolt on the bell-jar base 14 9; Be connected the non-end gas blow pipe 1 that waters with non-end overhead gage 4 ports that water of mold cavity 3 then, be connected with second air inlet 8 first air inlet 2 with the outer protection source of the gas at last.
Begin to feed protective gas before the casting, close protective gas after the molten steel 5 in the mold cavity 3 solidifies.
Protective gas gets into from two parts of the utility model: a part of protective gas flows into the mold cavity 3 through the non-end gas blow pipe 1 that waters from first air inlet 2; Air-flow passes mold cavity 3 back parts and discharges from the slit between ring pipe 11 and the mold cavity 3; A part is discharged the space between bell-jar base 14 and ladle antetheca 10, accomplishes the cycle of flowing; Another part protective gas from second air inlet 8 through ring pipe 11; Flow to mold cavity 3 through steam vent 7; Part gas flow mold cavity 3 outsides; Part gas flows into the space between bell-jar 12 and bell-jar 12 and the mold cavity 3, discharges the space between bell-jar base 14 and ladle antetheca 10 then, accomplishes the cycle of flowing.
Claims (5)
1. spun casting gas shield device; It is characterized in that: comprise non-end gas blow pipe (1) and the bell-jar (12) of watering; Saidly non-ly water the end gas blow pipe (1) for to be connected the non-lid shape housing that waters end of mold cavity (3), said housing bottom side has first air admission hole (2), said bell-jar (12) is the circular cone bench-type structure of both ends open; Its osculum end is welded with the bell-jar base (14) that is used for fixing, and osculum end diameter slips the external diameter of mouth (6) greater than ladle.
2. spun casting gas shield device according to claim 1; The big opening end that it is characterized in that said bell-jar (12) is welded with the ring pipe (11) around end wall one circle; Said ring pipe (11) is evenly equipped with the round steel pipe of steam vent (7) for sidewall; One end of ring pipe (11) connects second air inlet (8), other end sealing.
3. spun casting gas shield device according to claim 1; It is characterized in that said bell-jar base (14) is the annular steel plate; Near the position and the welding of said bell-jar (12) osculum end of interior circle, near the bolt hole that the position is provided with and ladle antetheca (10) is fixed of cylindrical.
4. spun casting gas shield device according to claim 2 is characterized in that the annular diameter of said ring pipe (11) equates with the internal diameter of said mold cavity (3).
5. according to claim 1 or 3 described spun casting gas shield devices, it is characterized in that the length of the axial length of said bell-jar (12) less than said ladle slide mouth (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202582117U CN202155500U (en) | 2011-07-21 | 2011-07-21 | Centrifugal casting gas protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202582117U CN202155500U (en) | 2011-07-21 | 2011-07-21 | Centrifugal casting gas protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202155500U true CN202155500U (en) | 2012-03-07 |
Family
ID=45763149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202582117U Expired - Fee Related CN202155500U (en) | 2011-07-21 | 2011-07-21 | Centrifugal casting gas protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202155500U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110523950A (en) * | 2019-09-06 | 2019-12-03 | 卓然(靖江)设备制造有限公司 | A kind of casting method for centrifugal |
| CN111804882A (en) * | 2020-07-20 | 2020-10-23 | 欧盟 | Precision forming process for aluminum alloy die casting blank |
-
2011
- 2011-07-21 CN CN2011202582117U patent/CN202155500U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110523950A (en) * | 2019-09-06 | 2019-12-03 | 卓然(靖江)设备制造有限公司 | A kind of casting method for centrifugal |
| CN111804882A (en) * | 2020-07-20 | 2020-10-23 | 欧盟 | Precision forming process for aluminum alloy die casting blank |
| CN111804882B (en) * | 2020-07-20 | 2021-11-09 | 靖江市联友模具制造有限公司 | Precision forming process for aluminum alloy die casting blank |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120307 Termination date: 20160721 |