CN215824200U - Casting head system of large thick-wall cylinder casting - Google Patents
Casting head system of large thick-wall cylinder casting Download PDFInfo
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- CN215824200U CN215824200U CN202123170580.3U CN202123170580U CN215824200U CN 215824200 U CN215824200 U CN 215824200U CN 202123170580 U CN202123170580 U CN 202123170580U CN 215824200 U CN215824200 U CN 215824200U
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- 238000005266 casting Methods 0.000 title claims abstract description 55
- 244000035744 Hura crepitans Species 0.000 claims abstract description 25
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 13
- 239000010959 steel Substances 0.000 claims abstract description 13
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims abstract description 6
- 235000017491 Bambusa tulda Nutrition 0.000 claims abstract description 6
- 241001330002 Bambuseae Species 0.000 claims abstract description 6
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims abstract description 6
- 239000011425 bamboo Substances 0.000 claims abstract description 6
- 230000000903 blocking effect Effects 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- 235000000396 iron Nutrition 0.000 claims description 2
- 230000003031 feeding effect Effects 0.000 abstract description 4
- 230000007547 defect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model provides a dead head system of large-scale thick wall section of thick bamboo class foundry goods, belongs to casting technical field, solves among the prior art top dead head and side dead head and can't solve the technical problem of large-scale thick wall section of thick bamboo class steel casting feeding, and the solution is: the top dead head, the side dead head and the bottom in-layer sprue are sequentially arranged from top to bottom along the axis direction of the sand box, the top dead head is vertically and symmetrically arranged above a sand box cavity upwards, the side dead head is vertically and symmetrically arranged on two sides of the middle part of the sand box upwards, the bottom of the side dead head is communicated with the sand box cavity through a middle pouring gate, the bottom in-layer sprue is arranged at a vertical projection position below the side dead head, and the bottom of the bottom in-layer sprue is communicated with a casting mold inner cavity through a bottom pouring gate. The bottom layer inner gate system plays a role of bottom pouring, the side riser plays a role of controlling a temperature field and relay feeding, the top riser ensures that the top riser obtains hot molten steel, and finally a better feeding effect is exerted on a casting.
Description
Technical Field
The utility model belongs to the technical field of casting, and particularly relates to a casting head system of a large thick-wall cylinder casting.
Background
The structural characteristics of large thick-wall cylinder steel castings are as follows: the casting has large wall thickness, large diameter and large height, and particularly a steel casting with high density requirement has limited feeding distance of a riser no matter feeding from the height direction or the circumferential direction, so that shrinkage cavities and shrinkage porosity are often generated in a certain height area, but the defects of the casting shrinkage cavities and the shrinkage porosity are still difficult to eliminate by selecting a top riser and side riser feeding mode in the prior art.
SUMMERY OF THE UTILITY MODEL
The utility model provides a casting head system for large thick-wall cylindrical castings, aiming at overcoming the defects in the prior art and solving the technical problem that a top casting head and a side casting head in the prior art cannot solve feeding of large thick-wall cylindrical castings.
The design concept of the utility model is as follows: the bottom pouring gate positioned at the bottom of the sand box plays a role of bottom pouring, so that stable pouring is ensured; the side riser positioned in the middle of the sand box plays a role in controlling a temperature field and relay feeding; and a top riser positioned at the top of the sand box ensures that hot molten steel is obtained, and finally, a better feeding effect is exerted on the casting.
The utility model is realized by the following technical scheme.
The utility model provides a dead head system of large-scale thick wall section of thick bamboo class foundry goods, large-scale thick wall section of thick bamboo class foundry goods adopts gravity pouring, and the runner sets up in the top of sand box die cavity eccentric position department vertically upwards, wherein: the top dead head, the side dead head and the bottom in-layer pouring gate are sequentially arranged from top to bottom along the axial direction of the sand box for pouring thick-wall cylindrical castings;
the top dead heads are vertically and upwards symmetrically arranged above the sand box cavity;
the side risers are vertically and symmetrically arranged at two sides of the middle part of the sand box upwards, the bottoms of the side risers are communicated with the sand box cavities through a middle pouring gate, the connecting line of the centers of the side risers at the two sides is vertical to the connecting line of the centers of the top risers at the two sides, and the side walls of the sand box cavities at the upper side and the lower side of the middle pouring gate are respectively provided with chills for blocking feeding channels;
the bottom in-layer gate is arranged at the vertical projection position below the side riser, and the bottom of the bottom in-layer gate is communicated with the inner cavity of the casting mold through a bottom pouring gate.
Further, the large thick-wall cylinder type casting is a cylinder type steel casting with the height larger than 600mm, the diameter larger than 400 mm and the wall thickness larger than 50 mm.
Furthermore, a plurality of side risers are uniformly distributed along the circumferential direction according to the diameter of the large thick-wall cylindrical casting.
Compared with the prior art, the utility model has the beneficial effects that:
the top riser ensures that the top riser obtains hot molten steel, and finally performs a better feeding effect on a casting, and the casting system is upgraded and modified aiming at the casting system of a large thick-wall cylinder casting, so that the dead head system can meet the feeding effect on the large thick-wall cylinder casting steel.
Drawings
FIG. 1 is a schematic top view of the present invention;
FIG. 2 is a schematic sectional view taken along the line A-A in FIG. 1;
FIG. 3 is a schematic diagram of the relationship between the position of the top riser and the gate.
In the figure, 1 is a pouring gate, 2 is a top dead head, 3 is a side dead head, 4 is a middle pouring gate, 5 is an inner bottom pouring gate, 6 is a bottom cross pouring gate, and 7 is a chill.
Detailed Description
The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model. Unless otherwise specified, the examples follow conventional experimental conditions. In addition, it will be apparent to those skilled in the art that various modifications or improvements can be made to the material components and amounts in these embodiments without departing from the spirit and scope of the utility model as defined in the appended claims.
The utility model aims at large thick-wall cylinder castings, and the cylinder castings are cylinder steel castings with the height of more than 600mm, the diameter of more than 400 mm and the wall thickness of more than 50 mm. The height is more than 600mm, because the vertical feeding distance is not enough when the height of the casting is large, two or more layers of risers need to be designed, and when the height of the casting is low, only one layer of top riser in the prior art is adopted; the diameter of the casting is larger than 400 mm, and when the diameter is large, the feeding continuity of the circumferential direction of the riser is not enough, so that a plurality of risers are needed; the wall thickness is more than 50mm, and because the thickness is small, shrinkage cavities and shrinkage porosity can be eliminated by adopting the prior art when the metal is solidified.
As shown in fig. 1-3, the feeder head system for large thick-wall tubular castings adopts gravity pouring, and the pouring gate 1 is vertically and upwardly arranged above the eccentric position of the sand box cavity, wherein: the dead head casting system comprises a top dead head 2, a side dead head 3 and a bottom in-layer pouring gate 5, wherein the top dead head 2, the side dead head 3 and the bottom in-layer pouring gate 5 are sequentially arranged from top to bottom along the axial direction for pouring the thick-wall cylinder casting sand box;
the top dead heads 2 are vertically and upwards symmetrically arranged above the sand box cavity;
the side risers 3 are vertically and symmetrically arranged at two sides of the middle part of the sand box upwards, the side risers 3 are heated through molten steel poured into a sprue to realize reinforced feeding of the hot risers, the size and the number of the risers are designed according to the continuity of the circumferential risers to ensure that the circumferential, upper and lower parts are fully fed, the bottom of the side risers 3 is communicated with a sand box cavity through a middle pouring gate 4, the connecting line of the centers of the side risers 3 at the two sides is perpendicular to the different surfaces of the connecting line of the centers of the top risers 2 at the two sides, the side risers 3 are heated through the molten steel poured into the sprue to realize reinforced feeding of the hot risers, the size and the number of the side risers 3 are designed according to the continuity of the circumferential risers to ensure that the circumferential, upper and lower parts are fully fed, and cold irons 7 for blocking feeding channels are respectively arranged on the side walls of the upper and lower side cavities of the sand box of the middle pouring gate 4;
the bottom in-layer gate 5 is arranged at the vertical projection position below the side riser 3, and the bottom of the bottom in-layer gate 5 is communicated with the inner cavity of the casting mold through a bottom cross gate 6. ' Qiyi
The chill 7 divides the feeding channel above the top riser 2 and the feeding channel of the side riser 3, i.e. the divided areas, and by feeding in the vertical sequence, the top riser feeds its upper feeding area and the side riser 3 feeds its lower feeding area sufficiently. The design solves the problems of insufficient feeding distance in the height direction and insufficient feeding distance in the circumference direction, the method is to divide the area, part of the area is solidified in sequence, and the hot riser strengthens the lower part of the side riser 3 with enough hot molten steel feeding.
The structural size of the top dead head and the side dead head is designed by a proportional method, the pouring system is in an open type layered step pouring mode, the casting head system provided by the utility model is applied to the cantilever cylinder to produce castings, and the produced castings have no defects of shrinkage cavity and shrinkage porosity, so that the requirements of customers are met.
Besides, a plurality of side risers 3 can be uniformly distributed along the circumferential direction according to the diameter of the large thick-wall cylindrical casting. Risers with sufficient size and number are arranged along the circumferential direction according to the effective feeding distance so as to ensure the compactness of the casting.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (3)
1. The utility model provides a dead head system of large-scale thick wall section of thick bamboo class foundry goods, large-scale thick wall section of thick bamboo class foundry goods adopts gravity pouring, and runner (1) is vertical upwards to be set up in the top of sand box die cavity eccentric position department, its characterized in that: the dead head casting system comprises a top dead head (2), a side dead head (3) and a bottom in-layer pouring gate (5), wherein the top dead head (2), the side dead head (3) and the bottom in-layer pouring gate (5) are sequentially arranged from top to bottom along the axial direction of the sand box for casting thick-wall tubular castings;
the top dead heads (2) are vertically and upwards symmetrically arranged above the sand box cavity;
the side risers (3) are vertically and upwards symmetrically arranged at two sides of the middle part of the sand box, the bottom of the side riser (3) is communicated with a sand box cavity through a middle pouring gate (4), the connecting line of the centers of the side risers (3) at two sides is vertical to the different surface of the connecting line of the centers of the top risers (2) at two sides, and cold irons (7) for blocking feeding channels are respectively arranged on the side walls of the sand box cavities at the upper side and the lower side of the middle pouring gate (4);
the bottom in-layer gate (5) is arranged at the vertical projection position below the side riser (3), and the bottom of the bottom in-layer gate (5) is communicated with the inner cavity of the casting mold through a bottom pouring gate (6).
2. The gating and feeding system for large thick-walled cylindrical castings according to claim 1, wherein: the large thick-wall cylinder type casting is a cylinder type steel casting with the height larger than 600mm, the diameter larger than 400 mm and the wall thickness larger than 50 mm.
3. The gating and feeding system for large thick-walled cylindrical castings according to claim 1, wherein: and a plurality of side risers (3) are uniformly distributed along the circumferential direction according to the diameter of the large thick-wall cylindrical casting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123170580.3U CN215824200U (en) | 2021-12-17 | 2021-12-17 | Casting head system of large thick-wall cylinder casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123170580.3U CN215824200U (en) | 2021-12-17 | 2021-12-17 | Casting head system of large thick-wall cylinder casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215824200U true CN215824200U (en) | 2022-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123170580.3U Expired - Fee Related CN215824200U (en) | 2021-12-17 | 2021-12-17 | Casting head system of large thick-wall cylinder casting |
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| CN (1) | CN215824200U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114799072A (en) * | 2022-05-20 | 2022-07-29 | 安徽省恒泰动力科技有限公司 | Feeding head mould of forming combustion chamber and feeding method thereof |
-
2021
- 2021-12-17 CN CN202123170580.3U patent/CN215824200U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114799072A (en) * | 2022-05-20 | 2022-07-29 | 安徽省恒泰动力科技有限公司 | Feeding head mould of forming combustion chamber and feeding method thereof |
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220215 |
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| CF01 | Termination of patent right due to non-payment of annual fee |