CN203599517U - Molten metal die casting device - Google Patents
Molten metal die casting device Download PDFInfo
- Publication number
- CN203599517U CN203599517U CN201320825307.6U CN201320825307U CN203599517U CN 203599517 U CN203599517 U CN 203599517U CN 201320825307 U CN201320825307 U CN 201320825307U CN 203599517 U CN203599517 U CN 203599517U
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- CN
- China
- Prior art keywords
- molten metal
- die casting
- casting device
- protective sleeve
- metal die
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- 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 - Lifetime
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- 238000004512 die casting Methods 0.000 title claims abstract description 54
- 239000002184 metal Substances 0.000 title claims abstract description 49
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 49
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000011261 inert gas Substances 0.000 claims abstract description 21
- 238000005266 casting Methods 0.000 claims abstract description 12
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 92
- 229910052786 argon Inorganic materials 0.000 claims description 47
- 230000001681 protective effect Effects 0.000 claims description 42
- 229910000831 Steel Inorganic materials 0.000 claims description 33
- 239000010959 steel Substances 0.000 claims description 33
- 239000007789 gas Substances 0.000 claims description 14
- 238000007789 sealing Methods 0.000 abstract description 6
- 230000003647 oxidation Effects 0.000 abstract description 3
- 238000007254 oxidation reaction Methods 0.000 abstract description 3
- 239000011449 brick Substances 0.000 description 21
- 238000000034 method Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000012298 atmosphere Substances 0.000 description 2
- 238000009749 continuous casting Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000012300 argon atmosphere Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
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Abstract
The utility model provides a molten metal die casting device. The molten metal die casting device comprises a molten metal container, a casting die, a pouring pipe and an inert gas protection unit, wherein a water gap is formed in the bottom of the molten metal container; the casting die is used for forming a casting; a pouring gate is formed in the upper end of the pouring pipe; the inert gas protection unit comprises an upper flexible protection sleeve, a lower rigid protection sleeve and an inert gas supply component; the upper end of the upper flexible protection sleeve is connected with the water gap; the lower end of the lower rigid protection sleeve is connected with the pouring gate; a cavity is formed by the upper flexible protection sleeve and the lower rigid protection sleeve and located between the water gap and the pouring gate; molten metal penetrates through the cavity and enters the pouring gate; the inert gas supply component is used for supplying inert gas into the cavity. Sealing protection of the inert gas and flexible sealing of the protection sleeves are carried out on the interval between the water gap of the molten metal container and the pouring gate of the pouring pipe, so that suction and secondary oxidation of the molten metal are reduced in the casting process.
Description
Technical field
The utility model relates to casting technology field, more particularly, relates to a kind of die casting device of molten metal
Background technology
Solidification of molten steel forms two kinds of methods: traditional die casting and To Continuous Casting Under.Nearly two during the last ten years, and die casting proportion constantly declines, and only accounts for 4～6% level at present, and also have downward trend slightly.But to small lot, especially large thickness, high-intensity steel, continuous casting still cannot replace.
Die casting pouring procedure comprises top teeming process and bet method.At present, bet method (or claim bottom casting) due to easy and simple to handle, efficiency is high is widely adopted.While adopting bet method, die casting equipment comprises ladle, feed trumpet (or in claiming cast tube) and ingot mould, and feed trumpet passes into ingot mould bottom, and when cast, the mouth of a river of ladle bottom is aimed between the cast gate of feed trumpet and described cast gate and the mouth of a river and had gap.Casting process is: molten steel pours into the cast gate of feed trumpet from the mouth of a river of ladle bottom, then flows into ingot mould from ingot mould bottom by feed trumpet bottom.Due to the existence in described gap, cause there is one section of space exposed with air between the ladle bottom mouth of a river and feed trumpet cast gate, affect the degree of purity of molten steel.The die casting equipment of certain steel mill builds up early, service life is longer; what adopt is driving cast in addition; consider from security standpoint; can not on cast gate, carry out mouth of a river height adjustment (lowering the mouth of a river to reduce the clearance distance between the mouth of a river and cast gate); therefore; need a kind of protection apparatus for pouring badly, harmful effect ingot quality being brought with the gap of avoiding between ladle nozzle and feed trumpet cast gate.
Utility model content
For prior art above shortcomings, the purpose of this utility model is to solve the one or more problems that exist in above-mentioned prior art.
For example, one of the utility model object is to provide a kind of molten metal die casting device that can realize good protection cast effect.
The utility model provides a kind of molten metal die casting device.Described molten metal die casting device comprises that bottom holds container with the molten metal at the mouth of a river, be used to form the casting mould of foundry goods, upper end is with gate spool and the inert gas shielding unit of cast gate, described inert gas shielding unit comprises flexible upper protective sleeve, protective sleeve and inert gas supply member under hard, wherein, in flexibility, the upper end of protective sleeve is connected with the described mouth of a river, under hard, the lower end of protective sleeve is connected with described cast gate, and in flexibility, under protective sleeve and hard, protective sleeve forms cavity between the described mouth of a river and described cast gate, described cavity can be for molten metal across and into cast gate, inert gas supply member is for feeding inert gas to described cavity.
According to an embodiment of the utility model molten metal die casting device, described inert gas supply member comprises gas blow pipe, one end of described gas blow pipe extends in described cavity, and the described gas blow pipe cross section that is arranged in the part surrounding cavity of described cavity circumferentially arranges and tube wall on have multiple ventholes.
According to an embodiment of the utility model molten metal die casting device, described molten metal die casting device also comprises the air guide (for example water conservancy diversion brick) being arranged in described cavity, and described air guide comprises water conservancy diversion body and is formed on the flow-guiding channel on described water conservancy diversion body.
According to an embodiment of the utility model molten metal die casting device, the body structure (for example Argon case) that under described hard, protective sleeve is bottom opening, the opening of described body structure is around described cast gate setting and be fixed on cast gate by the lower end of sidewall, and is provided with installing hole on the roof of described body structure; On described water conservancy diversion body, have outwardly directed flange, water conservancy diversion body is arranged on the roof of body structure by described flange through after described installing hole.
According to an embodiment of the utility model molten metal die casting device, described air guide is made up of fireclay refractory.
According to an embodiment of the utility model molten metal die casting device, in described flexibility, the lower end of protective sleeve is coated under described hard outside protective sleeve.
According to an embodiment of the utility model molten metal die casting device, in described flexibility, protective sleeve is made up of resistant to elevated temperatures fibrofelt.
According to an embodiment of the utility model molten metal die casting device, described molten metal is molten steel.
According to an embodiment of the utility model molten metal die casting device, described inert gas is argon gas.
According to an embodiment of the utility model molten metal die casting device, it is ladle that the described molten metal with the mouth of a river holds container, and described upper end is feed trumpet with the gate spool of cast gate.
Compared with prior art; the beneficial effects of the utility model comprise: carry out inert atmosphere seal protection and protective sleeve flexible sealing by gap molten metal being held between the mouth of a river and the gate spool cast gate of container, reduced the air-breathing and secondary oxidation of molten metal in casting process.
Accompanying drawing explanation
By the description of carrying out below in conjunction with accompanying drawing, above and other object of the present utility model and feature will become apparent, wherein:
Fig. 1 shows according to the assembling schematic diagram of the molten steel die casting device of the utility model exemplary embodiment;
Fig. 2 shows according to the front view of the Argon case of the molten steel die casting device of the utility model exemplary embodiment and Argon pipe;
Fig. 3 shows according to the front view of the water conservancy diversion brick of the molten steel die casting device of the utility model exemplary embodiment;
Fig. 4 shows according to the front view of the water conservancy diversion brick of the molten steel die casting device of the utility model exemplary embodiment and Argon case fit structure;
Fig. 5 A shows according to the structural representation of protective sleeve in the flexibility of the molten steel die casting device of the utility model exemplary embodiment;
Fig. 5 B is the expanded view of Fig. 5 A.
Description of reference numerals is as follows:
Protective sleeve, 5-Argon pipe, 6-water conservancy diversion brick, 6a-brick body, 6b-flow-guiding channel, 6c-Connection Card in 1-ladle, 2-feed trumpet, 3-Argon case, 4-flexibility.
The specific embodiment
Hereinafter, describe molten metal die casting device of the present utility model in detail in connection with accompanying drawing and exemplary embodiment.
Fig. 1 is according to the assembling schematic diagram of the molten steel die casting device of the utility model exemplary embodiment; Fig. 2 is according to the front view of the Argon case of the molten steel die casting device of the utility model exemplary embodiment and Argon pipe; Fig. 3 is according to the structural representation of the water conservancy diversion brick of the molten steel die casting device of the utility model exemplary embodiment; Fig. 4 is according to the front view of the water conservancy diversion brick of the molten steel die casting device of the utility model exemplary embodiment and Argon case fit structure; Fig. 5 A is according to the structural representation of protective sleeve in the flexibility of the molten steel die casting device of the utility model exemplary embodiment; Fig. 5 B is the expanded view of Fig. 5 A.
As shown in Figure 1, molten steel die casting device comprises ladle 1, feed trumpet 2 and ingot mould (not shown), feed trumpet 2 passes into ingot mould bottom, when cast, the cast gate of feed trumpet 2 is aimed at the mouth of a river of ladle 1 bottom, pour into a mould owing to adopting driving, there is larger gap to unwrapping after watering between the mouth of a river and cast gate at ladle, it is the generation that is all difficult to avoid gap from equipment or the requirement of personnel's operant level, and consider from security standpoint, can not on cast gate, carry out mouth of a river height adjustment (for example, step-down operation).For the gap between the mouth of a river and cast gate forms protection, also comprise argon shield unit according to the molten steel die casting device of the utility model exemplary embodiment, argon shield unit comprises flexible upper protective sleeve 4, Argon case 3, water conservancy diversion brick 6 and Argon pipe 5.
Wherein, as shown in Figure 2, Argon case 3 has roof, sidewall and the bottom that surrounded by roof and sidewall has the inner chamber of opening.The opening of Argon case 3 is around the cast gate setting of feed trumpet 2 and be fixed on by the lower end of sidewall on the cast gate of feed trumpet 2; On the roof of Argon case 3, installing hole is set.Argon pipe 5 is communicated with the inner chamber of Argon case 3 by the sidewall of Argon case 3.Preferably, one end that Argon pipe 5 is connected with Argon case 3 sidewalls extends in the inner chamber of Argon case 3, the part that Argon pipe 5 is arranged in Argon case 3 inner chambers around the cross section of Argon box cavity circumferentially arrange and tube wall on have multiple ventholes, to realize circumferentially evenly gas distribution.But the utility model is not limited to this; Argon pipe 5 mainly plays the effect for pass into argon gas (Ar) to Argon box cavity; thereby above cast gate, form an air chamber that is full of argon gas; form argon gas-sealed with the gap between feed trumpet cast gate and ladle nozzle, steel stream is played to the effect of protection.In addition, in the present embodiment, Argon case 11 is made up of steel plate, and in use, fixed placement, on feed trumpet 2 cast gates, has larger spacing directly not contact with steel stream, because of but one be difficult for wearing detail.
As shown in Figure 3 and Figure 4, water conservancy diversion brick 6 comprises brick body 6a and Connection Card 6c, brick body 6a enters in the inner chamber of Argon case 3 and is arranged on by Connection Card 6c on the roof of Argon case 3 through the installing hole on Argon case 3 roofs, the top of brick body 6a extends to the below, the mouth of a river of ladle 1 bottom, the bottom of brick body 6a extends to the junction of Argon case 3 and feed trumpet 2 cast gates, and on brick body 6a, is formed with the flow-guiding channel 6b for the molten steel flowing out from ladle nozzle being guided to feed trumpet cast gate.In the present embodiment, Connection Card 6c is for being formed on the upper also outwardly directed flange of brick body 6a, and brick body 6a is arranged on the roof of Argon case 3 by this flange through after installing hole.In addition, water conservancy diversion brick 6 is made up of fireclay refractory.After water conservancy diversion brick 6 is set, can play molten steel guide functions, and can quick-replaceable after steel bonding occur.But the utility model is not limited to adopt water conservancy diversion brick 6, can also adopt other can play the air guide of the function of water conservancy diversion brick.In addition, air guide even can be set, and directly between the mouth of a river and cast gate, form cavity by protective sleeve in flexibility 4 and Argon case 3, the size of described cavity meets to be made molten steel liquid through this cavity and enters cast gate.
As shown in Fig. 1, Fig. 5 A and Fig. 5 B; in flexibility, protective sleeve 4 is flexible structure and the hollow tube-shape that is upper and lower opening; its upper end is sleeved on the mouth of a river of ladle 1, and lower end is coated on outside Argon case 3, further forms flexible sealing with the gap between feed trumpet cast gate and ladle nozzle.In one embodiment, in flexibility, protective sleeve 4 is made up of resistant to elevated temperatures fibrofelt, can not only bear 1600 ℃ of left back high-temperature bakings, and possesses good air-tightness.
When use; Argon case 3 and water conservancy diversion brick 6 are arranged on behind middle cast tube 2 tops by Fig. 1 illustration; protective sleeve 4 in high temperature fiber felt matter flexibility is fixed on to ladle nozzle below (owing to being flexible structure, for convenience of to bag and open casting operation, can realize upwards and folding).To after unwrapping and watering, put down rapidly protective sleeve 4 in high temperature fiber felt matter flexibility, and by Argon pipe 5, Argon case 3 is carried out to argon filling immediately, the gap between feed trumpet cast gate and ladle nozzle has been formed to hermetic blowing argon atmosphere.
Can find out; molten steel die casting device of the present utility model is by carrying out argon gas atmosphere sealing and protective sleeve flexible sealing to the gap between ladle nozzle and middle cast tube cast gate; reduce the air-breathing and secondary oxidation of molten steel in casting process; improve steel ingot degree of purity; improve steel ingot forging rolling and make the surface quality of material, improve lumber recovery.
In addition; the inert gas shielding unit of molten steel die casting device of the present utility model has adopted split design; greatly reduce on the one hand the labour intensity that workman installs in beamhouse operation process; its operation and maintenance is all very convenient on the other hand, and has the distinguishing feature that maintenance period is short, use cost is low.
Below described molten steel die casting device with exemplary embodiment by reference to the accompanying drawings, but the utility model is not limited to this, the application's die casting device does not limit the use of in molten steel die casting, can also be applied to the cast of other molten metals.And; the application's die casting device is mainly to hold in forming cavity and this cavity between the mouth of a river of container and the cast gate of gate spool and (for example can fill protective gas at molten metal; argon gas, nitrogen etc.; determine according to molten metal to be cast), and this cavity was made up of common cooperation of protective sleeve under protective sleeve, hard in flexibility.Wherein, under hard, protective sleeve can adopt but be not limited to the version of above-mentioned Argon case; in flexibility, under protective sleeve and hard, the fit system of protective sleeve is also not limited to the lower end of protective sleeve in flexibility to be coated on the form outside protective sleeve under hard; for example; under hard, protective sleeve can be also the tubular structure of upper and lower opening, and the lower end of flexible upper protective sleeve is positioned in the upper end of protective sleeve under hard.
Although above by having described the utility model in conjunction with exemplary embodiment, but those skilled in the art should be clear, in the case of not departing from the spirit and scope that claim limits, can carry out various modifications and change to exemplary embodiment of the present utility model.
Claims (10)
1. a molten metal die casting device, comprise that bottom holds container with the molten metal at the mouth of a river, be used to form the casting mould of foundry goods and the upper end gate spool with cast gate, it is characterized in that, described molten metal die casting device also comprises inert gas shielding unit, described inert gas shielding unit comprises flexible upper protective sleeve, protective sleeve and inert gas supply member under hard, wherein, in flexibility, the upper end of protective sleeve is connected with the described mouth of a river, under hard, the lower end of protective sleeve is connected with described cast gate, and in flexibility, under protective sleeve and hard, protective sleeve forms cavity between the described mouth of a river and described cast gate, described cavity can be for molten metal across and into cast gate, inert gas supply member is for feeding inert gas to described cavity.
2. molten metal die casting device according to claim 1, it is characterized in that, described inert gas supply member comprises gas blow pipe, one end of described gas blow pipe extends in described cavity, and the described gas blow pipe part that is arranged in described cavity around the cross section of described cavity circumferentially arrange and tube wall on have multiple ventholes.
3. molten metal die casting device according to claim 1, is characterized in that, described molten metal die casting device also comprises the air guide being arranged in described cavity, and described air guide comprises water conservancy diversion body and is formed on the flow-guiding channel on described water conservancy diversion body.
4. molten metal die casting device according to claim 3, it is characterized in that, the body structure that under described hard, protective sleeve is bottom opening, the opening of described body structure is around described cast gate setting and be fixed on cast gate by the lower end of sidewall, and is provided with installing hole on the roof of described body structure; Described water conservancy diversion body has outwardly directed flange, and water conservancy diversion body is arranged on the roof of body structure by described flange through after described installing hole.
5. molten metal die casting device according to claim 3, is characterized in that, described air guide is made up of fireclay refractory.
6. molten metal die casting device according to claim 1, is characterized in that, in described flexibility, the lower end of protective sleeve is coated under described hard outside protective sleeve.
7. molten metal die casting device according to claim 1, is characterized in that, in described flexibility, protective sleeve is made up of resistant to elevated temperatures fibrofelt.
8. molten metal die casting device according to claim 1, is characterized in that, described molten metal is molten steel.
9. molten metal die casting device according to claim 1, is characterized in that, described inert gas is argon gas.
10. molten metal die casting device according to claim 1, is characterized in that, it is ladle that the described molten metal with the mouth of a river holds container, and described upper end is feed trumpet with the gate spool of cast gate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320825307.6U CN203599517U (en) | 2013-12-13 | 2013-12-13 | Molten metal die casting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320825307.6U CN203599517U (en) | 2013-12-13 | 2013-12-13 | Molten metal die casting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203599517U true CN203599517U (en) | 2014-05-21 |
Family
ID=50712219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320825307.6U Expired - Lifetime CN203599517U (en) | 2013-12-13 | 2013-12-13 | Molten metal die casting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203599517U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106825462A (en) * | 2017-01-13 | 2017-06-13 | 北京科技大学 | One kind cast steel ingot protection device and application method |
| CN108326270A (en) * | 2018-03-08 | 2018-07-27 | 三鑫重工机械有限公司 | A kind of pouring procedure of supercritical turbine valve casing steel-casting |
| CN112024866A (en) * | 2020-09-04 | 2020-12-04 | 攀钢集团攀枝花钢铁研究院有限公司 | Full-sealed die casting pouring protection device |
-
2013
- 2013-12-13 CN CN201320825307.6U patent/CN203599517U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106825462A (en) * | 2017-01-13 | 2017-06-13 | 北京科技大学 | One kind cast steel ingot protection device and application method |
| CN106825462B (en) * | 2017-01-13 | 2018-11-27 | 北京科技大学 | A kind of casting steel ingot protective device |
| CN108326270A (en) * | 2018-03-08 | 2018-07-27 | 三鑫重工机械有限公司 | A kind of pouring procedure of supercritical turbine valve casing steel-casting |
| CN112024866A (en) * | 2020-09-04 | 2020-12-04 | 攀钢集团攀枝花钢铁研究院有限公司 | Full-sealed die casting pouring protection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140521 |