CN207402059U - Blind riser fever pressure-maintaining structure - Google Patents
Blind riser fever pressure-maintaining structure Download PDFInfo
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- CN207402059U CN207402059U CN201721251455.6U CN201721251455U CN207402059U CN 207402059 U CN207402059 U CN 207402059U CN 201721251455 U CN201721251455 U CN 201721251455U CN 207402059 U CN207402059 U CN 207402059U
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- riser
- storeroom
- breather chamber
- blind
- blind riser
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Abstract
Blind riser fever pressure-maintaining structure, it is related to Large Sand casting steel-casting technical field；It includes mold, riser buss, blocks plate, storeroom, exothermic mixture, cover board, breather chamber, snorkel；Riser buss is connected in the riser positioning of the mold, the upper end of riser buss is provided with blocking plate, the upper end of plate is blocked to be provided with storeroom, exothermic mixture is provided in storeroom, the upper end of storeroom is provided with cover board, several through holes are evenly equipped on cover board, breather chamber is provided on cover board, the upper end of breather chamber is connected with snorkel.Blind riser fever pressure-maintaining structure described in the utility model, is melted using the blocking plate in blind riser after molten steel is contacted, and release exothermic mixture increases liquid steel temperature in blind riser, extends blind riser action time；Increase breather chamber and venthole, ensure that the atmospheric pressure in blind riser is unimpeded, improve blind riser feeding efficiency more than 15%, improve casting quality, reduce production cost.
Description
Technical field
The utility model is related to Large Sands to cast steel-casting technical field, and in particular to blind riser fever pressure-maintaining structure.
Background technology
At present during castings production, ventilation sand point is usually set above blind riser, and sand point is in high-temperature baking and is subject to molten steel
Erosion after can solidify the middle and later periods and enter molten steel and cannot ventilate, cause blind riser formed negative pressure can not effective feeding, feeding
Quality often cannot be guaranteed and reduce product quality, and feeding efficiency is also only about 5%.
Utility model content
The purpose of this utility model is that for the prior art the defects of and deficiency, provide it is a kind of facilitate production, improve effect
The blind riser of benefit and quality fever pressure-maintaining structure.
To achieve the above object, the technical solution adopted in the utility model is：It includes mold, riser buss, blocks plate, storage
Hide room, exothermic mixture, cover board, breather chamber, snorkel；Is connected with riser buss in the riser positioning of the mold, riser buss it is upper
End is provided with blocking plate, and the upper end of plate is blocked to be provided with storeroom, and exothermic mixture is provided in storeroom, and the upper end of storeroom is set
There is cover board, several through holes are evenly equipped on cover board, breather chamber is provided on cover board, the upper end of breather chamber is connected with snorkel.
Preferably, the exothermic mixture is made of exothermic shield material.
Preferably, the blocking plate uses low melting point aluminium alloy plate, fusing point is 640 ~ 680 DEG C.
Preferably, the breather chamber is made of normal sands, 18 ~ 22mm of height.
Preferably, the snorkel is made of ceramic tube, and the diameter of bore of snorkel is 38 ~ 42mm.
Preferably, the height of the exothermic mixture is the 15%-20% of riser diameter.
The operation principle of the utility model is：Cancel blind riser sand point and venthole directly and steel contacts；Work as during cast
Molten steel rises to blocks plate to melt when riser is interior to be contacted with blocking plate, and exothermic mixture covers molten steel surface and opens after blocking effect disappears
Gradually fever of beginning slows down the setting rate of metal in riser, at the same in riser molten steel surface by breather chamber and snorkel with it is big
Gas phase is led to, and makes to have remained normal atmospheric pressure in riser, ensure that the effective always of feeding, breather chamber 7 ensures riser
It is communicated always with air process of setting.
With the above structure, what the utility model generated has the beneficial effect that：Blind riser fever described in the utility model
Pressure-maintaining structure is melted using the blocking plate in blind riser after molten steel is contacted, and release exothermic mixture increases liquid steel temperature in blind riser,
Extend blind riser action time；Increase breather chamber and venthole, ensure that the atmospheric pressure in blind riser is unimpeded, improve blind riser and mend
Contracting efficiency more than 15% improves casting quality, reduces production cost.
Description of the drawings
Fig. 1 is the structure chart of the utility model.
Reference sign：
Mold 1, riser buss 2 block plate 3, storeroom 4, exothermic mixture 5, cover board 6, breather chamber 7, snorkel 8.
Specific embodiment
It in order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor property
It puts, can also be obtained according to these attached drawings other attached drawings.
Referring to as shown in Figure 1, present embodiment adopts the following technical scheme that：It includes mold 1, riser buss 2, blocks
Plate 3, storeroom 4, exothermic mixture 5, cover board 6, breather chamber 7, snorkel 8；Riser buss is connected in the riser positioning of the mold 1
2, the upper end of riser buss 2, which is provided with, blocks plate 3, and the upper end of plate 3 is blocked to be provided with storeroom 4, exothermic mixture is provided in storeroom 4
5, the upper end of storeroom 4 is provided with cover board 6, and several through holes are evenly equipped on cover board 6, and breather chamber 7, breather chamber 7 are provided on cover board 6
Upper end be connected with snorkel 8.
Preferably, the exothermic mixture 5 is made of exothermic shield material.
Preferably, the blocking plate 3 uses low melting point aluminium alloy plate, fusing point is 640 ~ 680 DEG C.
Preferably, the breather chamber 7 is made of normal sands, height is 18 ~ 22mm.
Preferably, the snorkel 8 is made of ceramic tube, and the diameter of bore of snorkel 8 is 38 ~ 42mm.
Preferably, the height of the exothermic mixture 5 is the 15%-20% of riser diameter.
The operation principle of present embodiment is：Cancel blind riser sand point and venthole directly and steel contacts；Cast
When molten steel rise in riser with block plate 3 contact when block plate 3 melt, blocking effect disappear after exothermic mixture covering molten steel table
Face simultaneously starts the setting rate that gradually fever slows down metal in riser, while molten steel surface by breather chamber 7 and leads in riser
Tracheae 8 is communicated with air, makes to have remained normal atmospheric pressure in riser, ensure that the effective always of feeding, breather chamber 7
Ensure that riser communicates always with air process of setting.
When present embodiment operates, put in the riser positioning of mold 1 and blocking is put above 2 → riser buss of riser buss 2
Plate 3 → put storeroom 4 → exothermic mixture 5 is put into storeroom → above blocking plate 3 and cover the cover board 6 with venthole → adds
The upper breather chamber 7 → connection air of snorkel 8 is placed above breather chamber, align with the stomata of breather chamber 7 → according to technological requirement
Place remaining running and feeding system → mulling, moulding.
With the above structure, what present embodiment generated has the beneficial effect that：It is dark described in present embodiment
Riser heating pressure-maintaining structure is melted using the blocking plate in blind riser after molten steel is contacted, and release exothermic mixture increases in blind riser
Liquid steel temperature extends blind riser action time；Increase breather chamber and venthole, ensure that the atmospheric pressure in blind riser is unimpeded, carry
High blind riser feeding efficiency more than 15% improves casting quality, reduces production cost.
The basic principle of the utility model and main feature and the advantages of the utility model has been shown and described above.This
The technical staff of industry is retouched in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
That states simply illustrates the principle of the utility model, on the premise of not departing from the spirit and scope of the utility model, the utility model
Various changes and modifications are also had, these various changes and improvements fall within the scope of the claimed invention.This practicality is new
Type is claimed scope and is defined by the appending claims and its equivalent thereof.
Claims (6)
- The pressure-maintaining structure 1. blind riser generates heat, it is characterised in that：It includes mold, riser buss, blocks plate, storeroom, exothermic mixture, lid Plate, breather chamber, snorkel；Riser buss is connected in the riser positioning of the mold, the upper end of riser buss is provided with blocking plate, The upper end of plate is blocked to be provided with storeroom, is provided with exothermic mixture in storeroom, the upper end of storeroom is provided with cover board, on cover board Several through holes are furnished with, breather chamber is provided on cover board, the upper end of breather chamber is connected with snorkel.
- The pressure-maintaining structure 2. blind riser according to claim 1 generates heat, it is characterised in that：The exothermic mixture is covered using fever Lid agent material is made.
- The pressure-maintaining structure 3. blind riser according to claim 1 generates heat, it is characterised in that：The blocking plate uses low melting point Aluminium alloy plate, fusing point are 640 ~ 680 DEG C.
- The pressure-maintaining structure 4. blind riser according to claim 1 generates heat, it is characterised in that：The breather chamber uses normal sands It is made, 18 ~ 22mm of height.
- The pressure-maintaining structure 5. blind riser according to claim 1 generates heat, it is characterised in that：The snorkel uses ceramic tube It is made, and the diameter of bore of snorkel is 38 ~ 42mm.
- The pressure-maintaining structure 6. blind riser according to claim 1 generates heat, it is characterised in that：The height of the exothermic mixture is to emit The 15%-20% of mouth diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721251455.6U CN207402059U (en) | 2017-09-27 | 2017-09-27 | Blind riser fever pressure-maintaining structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721251455.6U CN207402059U (en) | 2017-09-27 | 2017-09-27 | Blind riser fever pressure-maintaining structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207402059U true CN207402059U (en) | 2018-05-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721251455.6U Active CN207402059U (en) | 2017-09-27 | 2017-09-27 | Blind riser fever pressure-maintaining structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107695297A (en) * | 2017-09-27 | 2018-02-16 | 安徽应流集团霍山铸造有限公司 | Blind riser heating pressure-maintaining structure |
| CN110303119A (en) * | 2019-07-16 | 2019-10-08 | 无锡市蠡湖铸业有限公司 | A kind of dead head cover with heat temperature resistant safe valve |
-
2017
- 2017-09-27 CN CN201721251455.6U patent/CN207402059U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107695297A (en) * | 2017-09-27 | 2018-02-16 | 安徽应流集团霍山铸造有限公司 | Blind riser heating pressure-maintaining structure |
| CN110303119A (en) * | 2019-07-16 | 2019-10-08 | 无锡市蠡湖铸业有限公司 | A kind of dead head cover with heat temperature resistant safe valve |
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