CN205074522U - Negative pressure updraft type pouring device - Google Patents
Negative pressure updraft type pouring device Download PDFInfo
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- CN205074522U CN205074522U CN201520789697.5U CN201520789697U CN205074522U CN 205074522 U CN205074522 U CN 205074522U CN 201520789697 U CN201520789697 U CN 201520789697U CN 205074522 U CN205074522 U CN 205074522U
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- molten steel
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- calciner
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Abstract
The utility model provides a negative pressure updraft type pouring device supplies the at least foundry goods of an at least mould shaping, and wherein, a dull and stereotyped lid that has the straw fits the top of calciner, the fused molten steel of splendid attire in the calciner, and the bottom of straw is stretched into in the molten steel, this mould is placed on the flat board, be equipped with an at least die cavity and a flow path system of intercommunication in the mould, be equipped with the water inlet between die cavity and the flow path system, form the air duct of intercommunication die cavity on the mould, and the flow path system of mould and the top of straw intercommunication, and the mould and the dull and stereotyped top lid unification cover body, cover body coupling air exhaust device, supply the internal air of extraction cover, make the air pressure in the cover body and the die cavity reduce, in order to rely on the internal negative pressure that is formed of cover, in inhaleing the die cavity with the molten steel in the calciner via straw and flow path system, through the cooling in order to form the foundry goods.
Description
Technical field
The utility model relates to a kind of pouring procedure, and inspiration on molten steel enters in mold so that the negative pressure forming foundry goods to inhale apparatus for pouring by espespecially a kind of negative pressure that utilizes.
Background technology
Refer to shown in Fig. 5, the gravity-assist pouring method of existing steel casting factory, mainly with calciner, steel are melted to after 1450 ~ 1700 DEG C, by the molten steel splendid attire of high temperature in metal bucket d, again molten steel is toppled in the mold a being cast in and making in advance, molten steel is allowed to rely on Action of Gravity Field, pond b1, sprue b2 and runner b3 is watered by flow path system b, and flow in die cavity c by water inlet (gate) b4, take out in mold a after molten steel cooled and solidified, through suitable cleaning and processing, required foundry goods can be obtained.
The pouring procedure of above-mentioned apparatus for pouring is mostly used in the casting of steel MTR.But based on casting cost and the considering of casting quality, it has following shortcoming:
1., for the thick foundry goods about below 3.5mm of meat, when being watered in sand mo(u)ld by molten steel with Action of Gravity Field, molten steel needs through flow path system.And due to the stop of air in die cavity, the flow velocity of molten steel can not be too fast, and the thick thinner flow velocity of meat is slower, stream is longer will make molten steel cool sooner, therefore, if the temperature of molten steel is not high, illiquidity, the thin meat difficult forming of foundry goods will be made, be not easy to cast out excellent product.
2. when melting temperature increase reaches 1700 DEG C, after temperature higher even, although can molten steel flow be increased, with the foundry goods of shaping thin meat, but after melting temperature increases, not only power consumption can be increased, and significantly can shorten the life-span of the refractory material of calciner, allow the replacement frequency of refractory material increase, thus, will refractory material replacement cost be increased and decline because changing the production capacity caused of stopping work.Moreover when molten steel melting temperature is more than 1700 DEG C, the refractory material in calciner can fuse in molten steel, causing molten steel to include oxide impurity increases, and affects purity and the mechanical performance of steel foundry goods.
3., in casting process, molten steel needs to be full of and to comprise flow path systems such as watering pond, sprue and runner, just can flow in die cavity, and molten steel in this flow path system can with the cooled and solidified simultaneously of the molten steel in die cavity.Molten steel is deposited in flow path system and consumes molten steel more, foundry goods cannot effectively be promoted with the ratio (also namely walk and stay rate) of always pouring into a mould molten steel, and step stays rate effectively to promote, and namely cannot save molten steel, effectively cannot save the energy, reduces production cost.
Utility model content
In view of this, in order to provide a kind of structure being different from prior art, and improve above-mentioned shortcoming, inventor amasss experience for many years and constantly researches and develops improvement, then has generation of the present utility model.
An object of the present utility model inhales apparatus for pouring providing in a kind of negative pressure, and time not high in order to do the temperature that can solve existing molten steel, the problem of the foundry goods difficult forming that meat is thin, to meet the product instructions for use of the thin meat of foundry goods.
An object of the present utility model inhales apparatus for pouring providing in a kind of negative pressure, in order to do solving the too high shortcoming of existing molten steel melting temperature, to reduce power consumption, to reduce refractory material consume and replacement frequency, raising foundry goods purity, mechanical performance, and production cost can be reduced.
An object of the present utility model inhales apparatus for pouring providing in a kind of negative pressure, rests in flow path system in order to do solving existing too much molten steel, and the problem making step stay rate cannot to promote, to save the cost reclaiming molten steel and make again, and effectively improve output.
An object of the present utility model inhales apparatus for pouring providing in a kind of negative pressure, must carry out the shortcoming of pouring into a mould, without the need to re-using metal bucket and relevant equipment, to reduce production cost in order to do solving existing pouring procedure with metal bucket.
For reaching above-mentioned purpose, negative pressure set by the utility model is inhaled apparatus for pouring at least one foundry goods of at least one moldings formed therefrom, at least one die cavity and a flow path system of connection is provided with in mold, water inlet is provided with between die cavity and flow path system, its main technical characterstic is that a flat board with suction pipe is covered on the top of a calciner, calciner is for the molten steel of splendid attire melting, and the bottom of suction pipe is stretched in molten steel; Mold is positioned on flat board, and mold is formed the air duct being communicated with die cavity, the flow path system of mold is communicated with the top of suction pipe; And the top of mold and flat board covers a cover body, cover body connects air extractor, for the air extracted in cover body.
During enforcement, this mold is sand mo(u)ld, and the air duct on mold is the gap of each sand grains of sand mo(u)ld.
During enforcement, the inside of mold has a tube connector, and the two ends up and down of tube connector are communicated with the top of suction pipe with the flow path system of mold respectively.
During enforcement, this calciner is with the calciner of a coil heats.
Compared with prior art, the beneficial effect that the utility model has is:
1, molten steel sucks in die cavity in the mode that negative pressure is inhaled by the utility model, makes the meat of foundry goods thick reduction below 2.5mm, therefore, for the product having specific demand, can meet the requirement used because of the thin meat of foundry goods.
2, molten steel sucks in die cavity in the mode that negative pressure is inhaled by the utility model, although the temperature of molten steel is between 1500 ~ 1600 DEG C, still can flow smoothly in flow path system, therefore, via the reduction of molten steel melting temperature, not only can reduce power consumption to save the energy, refractory material consume can be reduced and fuse in molten steel, to improve foundry goods purity and mechanical performance, and the replacement frequency that can reduce calciner refractory material is to reduce production cost.
3, the utility model is after casting complete, allows the molten steel adverse current of ot-yet-hardened return in calciner, pours into a mould use to provide next time, therefore, can effectively promote step and stay rate, not only can save the cost that recovery is made again, and can improve output.
4, molten steel sucks in die cavity in the mode that negative pressure is inhaled by the utility model, and the inside of mold has upright tube connector, the upper end of tube connector is communicated with the flow path system of mold, therefore, the melting temperature of molten steel can be reduced, and use shorter flow path system, when the molten steel adverse current of ot-yet-hardened is returned in calciner, not having impurity is blended in molten steel, impacts to avoid the mechanical performance of impurity to steel foundry goods.
5, calciner of the present utility model is the calciner of coil heats, directly can provide the molten steel of melting, allowing suction pipe draw with mould casting, therefore, without the need to re-using metal bucket and relevant equipment, and can reduce production cost.
Accompanying drawing explanation
Fig. 1 is the element exploded view of preferred embodiment of the present utility model.
Fig. 2 is the combination generalized section of preferred embodiment of the present utility model.
Fig. 3 is the using state figure of preferred embodiment of the present utility model when forming negative pressure.
Fig. 4 is the using state figure that the molten steel adverse current of preferred embodiment of the present utility model returns calciner.
Fig. 5 is the using state schematic diagram that molten steel is cast in mold by existing apparatus for pouring.
Description of reference numerals: negative pressure is inhaled apparatus for pouring 1; Mold 2; Air duct 21; Die cavity 22; Flow path system 23; Water inlet 24; Tube connector 25; Calciner 3; Coil 31; Molten steel 32; Dull and stereotyped 4; Suction pipe 41; Cover body 5; Air extractor 6; Exhaust tube 61; Mold a; Flow path system b; Water pond b1; Sprue b2; Runner b3; Water inlet b4; Die cavity c; Metal bucket d.
Detailed description of the invention
Refer to shown in Fig. 1, Fig. 2, it is for the utility model negative pressure being inhaled the preferred embodiment of apparatus for pouring 1, for the shaping at least one foundry goods of at least one mold 2, this negative pressure is inhaled apparatus for pouring 1 and comprise mold 2, calciner 3, flat board 4, cover body 5 and an air extractor 6.
This mold 2 is sand mo(u)lds, the gap of each sand grains of sand mo(u)ld as the air duct 21 of mold 2, for generation permeation functions.Be provided with two die cavitys 22 and a flow path system 23 of connection in mold 2, be provided with a water inlet 24 between arbitrary die cavity 22 and flow path system 23, during enforcement, this die cavity 22 also can be more than one or two, with shaping more than one or two foundry goods.The inside of mold 2 is provided with a upright tube connector 25, and the upper end of tube connector 25 is communicated with the flow path system 23 of mold 2.
The top of this calciner 3 forms opening, and the outer peripheral edge circle coiling 31 of calciner 3, after heating at coil 31, controls molten steel 32 temperature of melting in calciner 3, the melt temperature of molten steel 32 is controlled between 1500 ~ 1600 DEG C.And to close this opening on the top end opening that this flat board 4 is covered on calciner 3, this flat board 4 has about one hollow suction tube run through 41, suction pipe 41 vertically runs through the plate face of dull and stereotyped 4, and the top end opening of suction pipe 41 with dull and stereotyped 4 end face outline in same level.When on the end face that mold 2 is positioned over dull and stereotyped 4, it is connected state that the top of suction pipe 41 is docked with the lower end of tube connector 25, and the bottom of suction pipe 41 is stretched in molten steel 32.
This cover body 5 is hollow containers that bottom surface forms opening, and cover body 5 is covered on the top of mold 2 and dull and stereotyped 4, and mold 2 is contained between dull and stereotyped 4 end faces and the inwall of cover body 5.Separately, the top of cover body 5 connects one end of an exhaust tube 61, and the other end of exhaust tube 61 connects a vavuum pump, and this vavuum pump is as air extractor 6.
So, as shown in Figure 3, when extracting the air in cover body 5 with air extractor 6, due to the gas permeability of mold 2, the air pressure in cover body 5 and die cavity 22 can be made to reduce, make the air pressure in cover body 5 identical with the air pressure in die cavity 22, flow path system 23 and tube connector 25, suction pipe 41, to utilize the high-temperature molten steel 32 in negative pressure extracting calciner 3, molten steel 32 is upwards flowed via suction pipe 41, then flows in die cavity 22 via flow path system 23.
As shown in Figure 4, after molten steel 32 flows in die cavity 22, system first leaves standstill a period of time, and the molten steel 32 in die cavity 22 solidifies not yet completely, and the water inlet 24 between flow path system 23 and die cavity 22 is when solidifying, remove the air negative pressure state in cover body 5, the downward adverse current of the molten steel 32 of ot-yet-hardened in flow path system 23 is returned in calciner 3.And after molten steel 32 completely return calciner 3 in by adverse current, cover body 5 is removed, and allow mold 2 be separated with dull and stereotyped 4, make the molten steel 32 in mold 2 continue cooling, then reappose new mold 2 on flat board 4 time, then again can carry out pouring practice.
Therefore, the utility model has following advantage:
1, molten steel sucks in die cavity in the mode that negative pressure is inhaled by the utility model, makes the meat of foundry goods thick reduction below 2.5mm, therefore, for the product having specific demand, can meet the requirement used because of the thin meat of foundry goods.
2, molten steel sucks in die cavity in the mode that negative pressure is inhaled by the utility model, although the temperature of molten steel is between 1500 ~ 1600 DEG C, still can flow smoothly in flow path system, therefore, via the reduction of molten steel melting temperature, not only can reduce power consumption to save the energy, refractory material consume can be reduced and fuse in molten steel, to improve foundry goods purity and mechanical performance, and the replacement frequency that can reduce calciner refractory material is to reduce production cost.
3, the utility model is after casting complete, allows the molten steel adverse current of ot-yet-hardened return in calciner, pours into a mould use to provide next time, therefore, can effectively promote step and stay rate, not only can save the cost that recovery is made again, and can improve output.
4, molten steel sucks in die cavity in the mode that negative pressure is inhaled by the utility model, and the inside of mold has upright tube connector, the upper end of tube connector is communicated with the flow path system of mold, therefore, the melting temperature of molten steel can be reduced, and use shorter flow path system, when the molten steel adverse current of ot-yet-hardened is returned in calciner, not having impurity is blended in molten steel, impacts to avoid the mechanical performance of impurity to steel foundry goods.
5, calciner of the present utility model is the calciner of coil heats, directly can provide the molten steel of melting, allowing suction pipe draw with mould casting, therefore, without the need to re-using metal bucket and relevant equipment, and can reduce production cost.
In sum, according to content disclosed above, the utility model really can reach the object of expection, there is provided one can not only make the thin meat of foundry goods, reduce production cost, improve output, and the negative pressure can guaranteeing casting quality inhales apparatus for pouring, have the value that industry utilizes, whence proposes utility application in accordance with the law.
Claims (4)
1. negative pressure inhales an apparatus for pouring, at least one foundry goods of at least one moldings formed therefrom, is provided with at least one die cavity and a flow path system of connection in this mold, is provided with a water inlet between this die cavity and this flow path system, it is characterized in that:
One flat board with suction pipe is covered on the top of a calciner, and this calciner is for the molten steel of splendid attire melting, and the bottom of this suction pipe is stretched in this molten steel;
This mold is positioned on this flat board, and this mold is formed the air duct being communicated with this die cavity, the flow path system of this mold is communicated with the top of this suction pipe; And
The top of this mold and this flat board covers a cover body, and this cover body connects an air extractor, for the air extracted in this cover body.
2. negative pressure according to claim 1 inhales apparatus for pouring, it is characterized in that, this mold is sand mo(u)ld, and the air duct on this mold is the gap of each sand grains of sand mo(u)ld.
3. negative pressure according to claim 1 and 2 inhales apparatus for pouring, it is characterized in that, the inside of this mold has a tube connector, and the two ends up and down of this tube connector are communicated with the top of this suction pipe with the flow path system of this mold respectively.
4. negative pressure according to claim 1 inhales apparatus for pouring, it is characterized in that, this calciner is with the calciner of a coil heats.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520789697.5U CN205074522U (en) | 2015-10-12 | 2015-10-12 | Negative pressure updraft type pouring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520789697.5U CN205074522U (en) | 2015-10-12 | 2015-10-12 | Negative pressure updraft type pouring device |
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| Publication Number | Publication Date |
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| CN205074522U true CN205074522U (en) | 2016-03-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520789697.5U Active CN205074522U (en) | 2015-10-12 | 2015-10-12 | Negative pressure updraft type pouring device |
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| CN (1) | CN205074522U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110802216A (en) * | 2018-08-06 | 2020-02-18 | 科华控股股份有限公司 | Anti-gravity vacuum suction casting heat-resistant cast steel casting process and device |
-
2015
- 2015-10-12 CN CN201520789697.5U patent/CN205074522U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110802216A (en) * | 2018-08-06 | 2020-02-18 | 科华控股股份有限公司 | Anti-gravity vacuum suction casting heat-resistant cast steel casting process and device |
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