CN214867069U - Small-hole riser - Google Patents
Small-hole riser Download PDFInfo
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- CN214867069U CN214867069U CN202121396691.3U CN202121396691U CN214867069U CN 214867069 U CN214867069 U CN 214867069U CN 202121396691 U CN202121396691 U CN 202121396691U CN 214867069 U CN214867069 U CN 214867069U
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- riser
- cavity
- inner diameter
- outer diameter
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- 239000011810 insulating material Substances 0.000 claims description 4
- 239000002184 metal Substances 0.000 abstract description 25
- 238000005266 casting Methods 0.000 abstract description 17
- 239000000919 ceramic Substances 0.000 description 11
- 239000004744 fabric Substances 0.000 description 11
- 239000000835 fiber Substances 0.000 description 11
- 229910045601 alloy Inorganic materials 0.000 description 5
- 239000000956 alloy Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000003031 feeding effect Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- 230000005484 gravity Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a small-hole riser, which relates to the riser field, wherein the riser comprises an upper riser and a lower riser, the outer diameter of the upper riser is larger than that of the lower riser, the outer diameter of the lower riser is the same as the inner diameter of a mold pipe, and the lower riser is sleeved inside the mold pipe; a first cavity is arranged in the lower riser, a second cavity is arranged in the upper riser, the first cavity is communicated with the second cavity, and the inner diameter of an opening of the first cavity on the lower end face of the lower riser is larger than that of an opening of the second cavity on the upper end face of the upper riser. The device can effectively avoid the leakage of molten metal and further improve the efficiency and quality of castings.
Description
Technical Field
The utility model relates to a rising head, concretely relates to aperture rising head.
Background
The feeder is a supplementary part which is added above or on the side of the casting to avoid the defect of the casting. The riser is arranged in a casting mould, a cavity of the riser is a cavity for storing liquid metal, the metal is supplied when a casting is formed, and the riser has the functions of preventing shrinkage cavity, shrinkage porosity, exhausting and slag collection, wherein the main function of the riser is feeding.
In the process of manufacturing the master alloy bar, the master alloy bar is generally cast in a shunting manner by adopting a shunting disc. The casting system consists of a splitter disc, high-temperature-resistant ceramic fiber cloth, a riser, an ingot casting mold and a fixing tool. The traditional riser is provided with a large cavity at the upper end thereof in order to improve the feeding rate, so that the contact area between the upper end of the riser and the high-temperature ceramic fiber cloth is small, however, during steel pouring, the tool for fixing the riser and the splitter disc is loosened due to the improvement of heat, the sealing performance of the high-temperature ceramic fiber cloth between the riser and the splitter disc is deteriorated, and therefore leakage occurs with a certain probability, and potential safety hazards and property loss are caused.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a small hole rising head avoids taking place the bleed-out and leaks at the steel casting in-process when guaranteeing feeding efficiency.
The purpose is realized by adopting the following technical scheme: the riser of the device comprises an upper riser and a lower riser, wherein the outer diameter of the upper riser is larger than that of the lower riser, when the riser is used, a mold pipe is sleeved on the outer side surface of the lower riser, the upper end of the mold pipe is in contact with the upper riser, and the riser is further fixedly placed on the mold pipe.
Meanwhile, a first cavity is arranged in the lower riser, a second cavity is arranged in the upper riser, the first cavity is communicated with the second cavity, and the inner diameter of an opening of the first cavity on the lower end face of the lower riser is larger than that of an opening of the second cavity on the upper end face of the upper riser. When the high-temperature-resistant ceramic fiber cloth is used, the high-temperature-resistant ceramic fiber cloth is placed at the periphery of the opening of the upper end face of the upper dead head, and the opening of the upper end face of the upper dead head is smaller, so that the contact area between the high-temperature-resistant ceramic fiber cloth and the upper end face of the upper dead head is larger, and when steel is poured, even if the shunting holes of the shunting disc are not aligned with the opening of the upper dead head, more high-temperature-resistant ceramic fiber cloth can further buffer molten metal, and the molten metal is prevented from leaking. Preferably, the upper end surface of the upper feeder is a plane. And the contact between the high-temperature resistant ceramic fiber cloth and the upper end face of the upper riser is facilitated.
Secondly, the traditional feeder head feeding has higher requirement on the fluidity of molten metal, generally speaking, the fluidity of the molten metal is better, the temperature of the molten metal is higher, but some elements with low melting points and low boiling points are added in some alloys, and volatilization of some elements can be accelerated under long-term high temperature, so that the percentage of alloy finished products to required alloy elements is different. The device avoids molten metal leakage in the steel casting process from the two aspects, so that the riser is more stably connected with the die pipe, and meanwhile, the molten metal can be effectively prevented from leaking from the upper part of the riser. Except avoiding the molten metal to leak, this device can also reduce heat dissipation rate when using, has increased the solidification time of molten metal in the riser of upper portion, and when the same foundry goods of casting, the temperature of pouring of the molten metal that uses this riser can be slightly less than the temperature of pouring that uses other risers.
On the basis, the outer diameter of the upper dead head is not smaller than that of the die tube. The inner diameter of the first cavity is not smaller than that of the second cavity. Meanwhile, the first cavity is a cylindrical cavity. The hollow structures of the upper feeder head and the lower feeder head can provide sufficient molten metal for feeding of the casting.
And, the inside diameter of the second cavity increases from top to bottom in order. Preferably, the second cavity comprises an upper cavity and a lower cavity, the upper cavity is a cylindrical cavity, the inner diameter of the lower cavity increases from top to bottom, and the central lines of the upper riser, the lower riser, the first cavity and the second cavity coincide.
The inner diameter of the second cavity is sequentially increased from top to bottom, so that the loss of molten metal can be reduced, the molten metal in the upper half part can be forced to move towards the center of the riser, and the center of the riser is just a feeding channel of a casting, so that the feeding effect can be further improved.
The upper feeder head and the lower feeder head are made of heat insulation materials. The heat-insulating material can further slow down the solidification speed of the molten metal, the casting adopts a solidification mode from bottom to top in the casting feeding process, and the riser is just placed right above the casting, so that the feeding part and the feeding channel are in the same vertical direction, the molten metal can be fed downwards under the action of gravity during feeding, and the feeding effect is better.
Compared with the prior art, the utility model, following advantage and beneficial effect have:
1. the utility model relates to a small-hole riser, the lower part of the riser can be closely attached to a mould pipe to avoid the metal liquid from leaking from the joint of the riser and the mould pipe, and meanwhile, the inner diameter of the opening at the upper part of the riser is smaller, so that the contact area between high-temperature resistant ceramic fiber cloth and the upper riser can be effectively increased, and the metal liquid is prevented from corroding the high-temperature resistant ceramic fiber cloth to cause leakage;
2. the device can effectively reduce the heat dissipation speed of the molten metal, improve the service efficiency of the molten metal, reduce the loss of the molten metal and improve the quality of castings;
3. this device can utilize gravity to improve the feeding speed of the intraoral metal liquid of riser when the foundry goods, and then can effectual improvement not efficiency, the quality of further improvement foundry goods to this dress simple structure, the operation of being convenient for is used.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a schematic view of a riser structure according to example 1;
FIG. 2 is a schematic view showing the structure of the riser and the mold tube in example 1 when they are connected;
FIG. 3 is a schematic view showing the structure of a riser in example 2;
FIG. 4 is a schematic view showing the structure of the riser and the mold tube in example 2 when they are connected.
Reference numbers and corresponding part names in the drawings:
1-upper riser, 2-lower riser, 3-first cavity, 4-second cavity, 41-upper cavity, 5-mold tube.
Detailed Description
To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.
In the description of the present invention, it should be understood that the terms "front", "back", "left", "right", "upper", "lower", "vertical", "horizontal", "high", "low", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the scope of the present invention.
[ example 1 ]
As shown in fig. 1, the riser comprises an upper riser 1 and a lower riser 2, wherein the outer diameter of the upper riser 1 is larger than the outer diameter of the lower riser 2, the outer diameter of the lower riser 2 is the same as the inner diameter of a mold tube 5, and the lower riser 2 is used for being sleeved inside the mold tube 5; a first cavity 3 is arranged in the lower riser 2, a second cavity 4 is arranged in the upper riser 1, the first cavity 3 is communicated with the second cavity 4, and the inner diameter of an opening of the first cavity 3 in the lower end face of the lower riser 2 is larger than that of an opening of the second cavity 4 in the upper end face of the upper riser 1.
In this embodiment, the upper feeder 1 and the lower feeder 2 are cylindrical, the outer diameter of the upper feeder 1 is 118mm, the outer diameter of the lower feeder 2 is 82mm, the inner diameter of the mold tube is 82mm, the outer diameter of the mold tube is 118mm, the height of the upper feeder 1 is 40mm, and the height of the lower feeder 2 is 62 mm. The first cavity 3 penetrates through the upper end and the lower end of the lower feeder head 2, the second cavity 4 penetrates through the upper end and the lower end of the upper feeder head 1, the lower end of the upper feeder head 1 is connected with the upper end of the lower feeder head 2, the first cavity 3 is communicated with the second cavity 4, and the upper end face of the upper feeder head 1 is a plane.
The first cavity 3 is a cylindrical cavity, the inner diameter of the first cavity 3 is 62mm, the second cavity 4 is conical, the inner diameter of the second cavity 4 increases from top to bottom in sequence, the inner diameter of the upper end of the second cavity 4, namely the inner diameter of an opening of the upper end face of the upper riser, is 32mm, and the inner diameter of the lower end of the second cavity 4, namely the inner diameter of an opening of the lower end face of the upper riser, is 62 mm.
During pouring, as shown in fig. 2, the mold pipe is sleeved on the outer side surface of the lower feeder head, the upper end of the mold pipe is in contact with the lower end surface of the upper feeder head, the shunt hole of the shunt disk is aligned with the opening on the upper end surface of the upper feeder head, high-temperature-resistant ceramic fiber cloth is arranged on the upper end surface of the upper feeder head, and molten metal enters the second cavity of the upper feeder head from the shunt hole and enters the mold pipe through the first cavity.
The central lines of the upper feeder 1, the lower feeder 2, the first cavity 3 and the second cavity 4 are overlapped, when pouring is carried out, molten metal of the upper feeder can be forced to move towards the center of the feeder, and the center position of the feeder is just a feeding channel of a casting, so that the feeding effect of the device is better when the device is used.
[ example 2 ]
On the basis of embodiment 1, as shown in fig. 3, the second cavity 4 includes an upper cavity 41 and a lower cavity, the upper cavity 41 is a cylindrical cavity, and the inner diameter of the lower cavity increases from top to bottom. The central lines of the upper riser 1, the lower riser 2, the first cavity 3 and the second cavity 4 are superposed. The upper riser 1 and the lower riser 2 are both made of heat-insulating materials. The heat insulating material in this embodiment is a conventional material.
The internal diameter of upper portion cavity is 30.5mm, and the height of upper portion cavity is 10mm, and the internal diameter of the upper end of lower part cavity is 30.5mm, and the lower extreme internal diameter is 61mm, and the internal diameter of first cavity is 61 mm.
The outer diameter of the upper feeder was 117.5mm, the height of the upper feeder was 40mm, the outer diameter of the lower feeder was 81mm, the height of the lower feeder was 60mm, the inner diameter of the die tube was 81mm, and the outer diameter of the die tube was 114 mm. During pouring, as shown in fig. 4, the mold pipe is sleeved on the outer side surface of the lower feeder head, and the upper end of the mold pipe is in contact with the lower end surface of the upper feeder head.
The term "connected" used herein may be either directly connected or indirectly connected via other components without being particularly described.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. The small-hole riser is characterized by comprising an upper riser (1) and a lower riser (2), wherein the outer diameter of the upper riser (1) is larger than that of the lower riser (2), the outer diameter of the lower riser (2) is the same as the inner diameter of a mold tube (5), and the lower riser (2) is sleeved inside the mold tube (5); a first cavity (3) is arranged in the lower dead head (2), a second cavity (4) is arranged in the upper dead head (1), the first cavity (3) is communicated with the second cavity (4), and the inner diameter of an opening of the first cavity (3) on the lower end face of the lower dead head (2) is larger than that of an opening of the second cavity (4) on the upper end face of the upper dead head (1).
2. Small bore riser according to claim 1, characterised in that the outer diameter of the upper riser (1) is not smaller than the outer diameter of the mould tube (5).
3. Orifice riser according to claim 1, characterised in that the internal diameter of the first cavity (3) is not smaller than the internal diameter of the second cavity (4).
4. An orifice riser as claimed in claim 3, characterised in that the first cavity (3) is a cylindrical cavity.
5. Small bore riser according to any of claims 3 or 4, characterised in that the inner diameter of the second cavity (4) increases from top to bottom.
6. Small bore riser according to any of claims 3 or 4, characterised in that the second cavity (4) comprises an upper cavity (41) and a lower cavity, the upper cavity (41) being a cylindrical cavity and the lower cavity having an internal diameter which increases from top to bottom.
7. Small hole riser according to claim 1, characterised in that the upper end surface of the upper riser (1) is plane.
8. An orifice riser as claimed in claim 1, characterised in that the centre lines of the upper riser (1), the lower riser (2), the first cavity (3) and the second cavity (4) coincide.
9. The small-bore riser as claimed in claim 1, characterised in that the upper riser (1) and the lower riser (2) are made of insulating material.
10. Small bore riser according to claim 1, characterised in that the second cavity (4) has an internal diameter of less than 40mm at the upper end face of the upper riser (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121396691.3U CN214867069U (en) | 2021-06-22 | 2021-06-22 | Small-hole riser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121396691.3U CN214867069U (en) | 2021-06-22 | 2021-06-22 | Small-hole riser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214867069U true CN214867069U (en) | 2021-11-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121396691.3U Active CN214867069U (en) | 2021-06-22 | 2021-06-22 | Small-hole riser |
Country Status (1)
| Country | Link |
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| CN (1) | CN214867069U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114289684A (en) * | 2021-12-16 | 2022-04-08 | 江苏隆达超合金航材有限公司 | Composite die pipe for reducing inclusion content in high-temperature alloy master alloy and die assembling method |
-
2021
- 2021-06-22 CN CN202121396691.3U patent/CN214867069U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114289684A (en) * | 2021-12-16 | 2022-04-08 | 江苏隆达超合金航材有限公司 | Composite die pipe for reducing inclusion content in high-temperature alloy master alloy and die assembling method |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 610000 Baihe Community Group 4, Lichun Town, Pengzhou City, Chengdu, Sichuan Province Patentee after: Sichuan Hangda New Materials Co.,Ltd. Country or region after: China Address before: 611930 Four Groups of Baihe Community in Lichun Town, Pengzhou City, Chengdu, Sichuan Province Patentee before: Pengzhou Hangda New Material Co.,Ltd. Country or region before: China |
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| CP03 | Change of name, title or address |