CN212191127U - Mold for casting volute - Google Patents
Mold for casting volute Download PDFInfo
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- CN212191127U CN212191127U CN202020931847.2U CN202020931847U CN212191127U CN 212191127 U CN212191127 U CN 212191127U CN 202020931847 U CN202020931847 U CN 202020931847U CN 212191127 U CN212191127 U CN 212191127U
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- volute
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Abstract
A mold for casting a volute belongs to the field of volute casting. The volute gas injection mold comprises a mold body with a volute cavity, wherein a first exhaust riser, a second exhaust riser, a third exhaust riser, a fourth exhaust riser and an overflow riser are arranged on the mold body and communicated with the volute cavity, the first exhaust riser is used for discharging gas at a first connecting flange of a volute, the second exhaust riser is used for discharging gas at a second connecting flange of the volute, the third exhaust riser is used for discharging gas at a valve core shaft of the volute, the fourth exhaust riser is used for discharging gas at a gas inlet flange of the volute, and the overflow riser is arranged at a pressure socket position of the volute cavity through an opening in the mold body. The volute produced by using the spiral casing production line has extremely high yield.
Description
Technical Field
The utility model relates to a spiral case casting technical field, concretely relates to a mould for casting spiral case.
Background
Commonly used volutes in turbocharger systems are a double-channel volute and a single-channel volute, for example, patent document CN203476407U describes a turbocharger volute assembly.
Due to the special structure of the volute, the volute is often manufactured in an assembled manner. Patent document CN 2093926 describes a turbine volute molding sand mold, which includes an upper mold plate and a lower mold plate, wherein the lower surface of the upper mold plate is provided with a first upper cavity and a second upper cavity, and the upper surface of the lower mold plate is provided with a first lower cavity and a second lower cavity.
The casting quality, the casting process and the quality of the die can obviously influence the casting quality of the product. The factors influencing the quality of castings are described in detail in the "casting formation theory" of the higher school textbook published by mechanical industry publishers, compiled by the pavilion university of Harbin industry, Inc.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a mould for casting spiral case to solve the technical problem that the spiral case quality stability of the mould production that can cast the spiral case among the prior art is poor.
In order to solve the technical problems, the following technical scheme can be selected according to the needs:
the utility model provides a mould for casting spiral case, includes the mould body that has the spiral case die cavity, be equipped with on the mould body with first exhaust riser, second exhaust riser, third exhaust riser, fourth exhaust riser and the overflow riser of spiral case die cavity intercommunication, first exhaust riser is used for discharging corresponding to the gas of the first flange department of spiral case, second exhaust riser is used for discharging corresponding to the gas of the second flange department of spiral case, third exhaust riser is used for discharging corresponding to the protruding gas of department of the case axle of spiral case, fourth exhaust riser is used for discharging corresponding to the gas of the flange department of admitting air of spiral case, the overflow riser is in opening setting on the mould body is in the pressure nest position of spiral case die cavity.
Preferably, the die body is further provided with an ingate, and an opening of the ingate on the die body is arranged at a position of the volute cavity, which corresponds to the middle of the volute.
Preferably, the die body is a cold box die.
Preferably, the mould body is further provided with a riser neck for forming the overflow riser.
Further, the riser neck is provided with a breakable groove.
Preferably, the volute cavity is used for casting a cast steel volute.
Compared with the prior art, the beneficial effects of the utility model are that: after the first exhaust riser, the second exhaust riser, the third exhaust riser and the fourth exhaust riser are arranged on the die body, about 2-3 groups of finished products of 20 groups of volutes have air hole defects, and the rejection rate is 10-15%. After the overflow risers are arranged on the die body, 150 groups of volute finished products are subjected to flaw detection, and no air hole defect is found. The utility model discloses a spiral case yields for casting the mould preparation of spiral case is high.
Drawings
Figure 1 is a perspective view of a volute.
Fig. 2 is a top view of fig. 1.
Fig. 3 is a right side view of fig. 1.
Fig. 4 is a top view of a mold for casting a spiral casing according to the present invention, in which only a partial structure of the mold is shown.
The reference numbers indicate that 1-volute, 11-air inlet flange, 12-first connecting flange, 13-second connecting flange, 14-valve core shaft bulge, 2-mould body, 21-straight casting bar, 22-third air-exhausting riser, 23-first air-exhausting riser, 24-overflow riser, 25-fourth air-exhausting riser and 26-second air-exhausting riser.
Detailed Description
The present invention is described below in terms of embodiments with reference to the accompanying drawings to assist those skilled in the art in understanding and realizing the invention. Unless otherwise indicated, the following embodiments and technical terms therein should not be understood to depart from the background of the technical knowledge in the technical field.
Fig. 1 to 3 show the shape of the volute to be cast according to the present invention, and the volute 1 has an inlet flange 11, a first connecting flange 12, a second connecting flange 13, and a spool boss 14.
Example 1: a mold for casting a volute comprises a mold body 2 with a volute cavity, wherein a first exhaust riser 23, a second exhaust riser 26, a third exhaust riser 22, a fourth exhaust riser 25 and an overflow riser 24 which are communicated with the volute cavity are arranged on the mold body 2, the first exhaust riser 23 is used for exhausting gas at a position corresponding to a first connecting flange 12 of the volute 1, the second exhaust riser 26 is used for exhausting gas at a position corresponding to a second connecting flange 13 of the volute 1, the third exhaust riser 22 is used for exhausting gas at a position corresponding to a valve core shaft bulge 14 of the volute 1, the fourth exhaust riser 25 is used for exhausting gas at a position corresponding to a gas inlet flange 11 of the volute 1, and an opening of the overflow riser 24 in the mold body is arranged at a pressure cavity position of the volute cavity.
It should be understood that the mold is used for casting the volute, that is, the position corresponding to a certain part of the volute is only corresponding to the position of the inner wall of the volute cavity.
The die body of the present embodiment can cast four volutes at the same time, and fig. 4 shows only the straight pouring bar 21 at the upper left corner, which can cast the complete part and 1/4 part of one volute.
Preferably, the die body 1 is further provided with an ingate, and an opening of the ingate on the die body 1 is arranged at a position of the volute cavity corresponding to the middle of the volute. Typically, the ingate outlet is a casting liquid inlet of the volute cavity.
Preferably, the mold body 1 is a cold box mold.
Preferably, the mold body 1 is further provided with a riser neck for forming the strain relief 24.
Furthermore, the riser neck is provided with a breakable groove.
Preferably, the volute cavity is used for casting a cast steel volute.
The present invention has been described in detail with reference to the accompanying drawings and examples. It should be understood that in practice the description of all possible embodiments is not exhaustive and that the inventive concepts of the present invention are presented herein by way of illustration as much as possible. Without departing from the inventive concept of the present invention and without paying creative labor, technical personnel in the technical field can make or delete combinations, specific parameters to perform experimental changes to the technical features in the above embodiments, or use the prior art in the technical field to perform the specific embodiments of conventional replacement and formation by the disclosed technical means, which all belong to the content hidden in the present invention.
Claims (6)
1. The utility model provides a mould for casting spiral case, includes the mould body that has the spiral case die cavity, its characterized in that, be equipped with on the mould body with first exhaust riser, second exhaust riser, third exhaust riser, fourth exhaust riser and the strain relief of spiral case die cavity intercommunication, first exhaust riser is used for discharging corresponding to the gas of the first flange department of spiral case, second exhaust riser is used for discharging corresponding to the gas of the second flange department of spiral case, third exhaust riser is used for discharging corresponding to the gas of the protruding department of case axle of spiral case, fourth exhaust riser is used for discharging corresponding to the gas of the flange department of inlet of spiral case, the strain relief is in opening setting on the mould body is in the pressure nest position of spiral case die cavity.
2. The mold for casting a volute according to claim 1, wherein the mold body further comprises an ingate, and an opening of the ingate in the mold body is disposed at a position of the volute cavity corresponding to a middle portion of the volute.
3. The mold for casting a volute according to claim 1, wherein the mold body is a cold-box mold.
4. The mold for casting a volute according to claim 1, wherein the mold body further comprises a riser neck for forming the strain relief.
5. The mold for casting a spiral casing of claim 4 wherein the riser neck is a riser neck with a break groove.
6. The mold for casting a volute according to claim 1, wherein the volute cavity is for casting a cast steel volute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020931847.2U CN212191127U (en) | 2020-05-28 | 2020-05-28 | Mold for casting volute |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020931847.2U CN212191127U (en) | 2020-05-28 | 2020-05-28 | Mold for casting volute |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212191127U true CN212191127U (en) | 2020-12-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020931847.2U Active CN212191127U (en) | 2020-05-28 | 2020-05-28 | Mold for casting volute |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212191127U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114535510A (en) * | 2022-02-28 | 2022-05-27 | 无锡市蠡湖铸业有限公司 | Feeder head of volute casing casting and machining method of volute casing casting |
-
2020
- 2020-05-28 CN CN202020931847.2U patent/CN212191127U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114535510A (en) * | 2022-02-28 | 2022-05-27 | 无锡市蠡湖铸业有限公司 | Feeder head of volute casing casting and machining method of volute casing casting |
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