CN212884871U - Carbon fiber insulation riser - Google Patents
Carbon fiber insulation riser Download PDFInfo
- Publication number
- CN212884871U CN212884871U CN202021003015.0U CN202021003015U CN212884871U CN 212884871 U CN212884871 U CN 212884871U CN 202021003015 U CN202021003015 U CN 202021003015U CN 212884871 U CN212884871 U CN 212884871U
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- carbon fiber
- riser
- pressurizing pipe
- pressure ring
- heating
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Abstract
The utility model discloses a carbon fiber heat preservation rising head for hold the molten metal to the casting mould feeding, include: the riser comprises a riser body, a pressurizing pipe and a pressure pump, wherein a feeding cavity is arranged in the riser body, and comprises a substrate layer, a heating layer and a carbon fiber heat-insulating layer from inside to outside in sequence; the pressurizing pipe is connected to an outlet at the upper end of the riser body through a sealing device, and a control valve is arranged on the pressurizing pipe; the output port of the pressure pump is communicated with the pressurizing pipe. The carbon fiber heat preservation layer is used for preserving heat, the heating layer is used for heating so as to prolong the cooling time of the molten metal, and then feeding is carried out more thoroughly in a pressurizing mode.
Description
Technical Field
The utility model belongs to the technical field of the casting equipment, in particular to carbon fiber insulation rising head.
Background
The heat-insulating riser is a riser made of low heat conduction material, and the riser is a cavity which is used for storing molten metal for feeding castings in a casting mould, has the functions of exhausting and collecting slag, and is a supplementary part which is attached to the upper side or the side surface of the castings for avoiding defects of the castings. For alloys that do not shrink in volume during solidification (e.g., gray cast iron), or alloys that do not produce concentrated shrinkage cavities (e.g., tin bronze), the risers function primarily to vent gas from the mold cavity and collect molten metal mixed with inclusions or oxide films at the flow front to reduce defects on the casting. Such risers are located more opposite the ingate and do not have to be too large in size. For the casting requiring the control of the microstructure, the riser can collect the metal liquid which is cooled at the front of the liquid flow, so as to avoid the appearance of a supercooled structure on the casting. For alloys that shrink volumetrically during solidification and tend to form concentrated shrinkage cavities (e.g., cast steel, manganese brass, aluminum bronze, etc.), the primary function of the risers is to compensate for liquid shrinkage of the molten metal in the mold cavity and shrinkage during solidification of the casting to obtain a dense casting without shrinkage cavities. When the casting is cooled in the casting mould, the thinnest part is firstly solidified, and the contraction of the casting can be compensated by the thicker part nearby; when the thicker part is solidified, the thickest part can be compensated; when the thickest part is solidified, if no external compensation is obtained, a large shrinkage cavity is formed at the position. The existing feeding head mould still has the problems of slow feeding efficiency, uneven feeding and unstable feeding head fixation.
Disclosure of Invention
The utility model aims at the not enough of above-mentioned prior art, provide a heat preservation and can control the carbon fiber dead head that keeps warm of feeding pressure.
For solving the above technical problem, the utility model discloses a technical scheme is:
a carbon fiber insulated riser for receiving molten metal fed to a mold, comprising:
the riser comprises a riser body, wherein a feeding cavity is arranged in the riser body, and the feeding cavity comprises a substrate layer, a heating layer and a carbon fiber heat insulation layer from inside to outside in sequence;
the pressurizing pipe is connected to an outlet at the upper end of the riser body through a sealing device, and a control valve is arranged on the pressurizing pipe; and
and the output port of the pressure pump is communicated with the pressurizing pipe.
The carbon fiber heat preservation cladding is in the zone of heating surface, the embedded electric stove silk that is equipped with of zone of heating.
The sealing device comprises an upper pressure ring, a lower pressure ring, a tensioning mechanism and a sealing gasket; an upper flange is arranged at the end part of the pressurizing pipe, and a lower flange is arranged at the upper end part of the riser body; the sealing gasket is arranged between the upper flange and the lower flange, the upper pressure ring and the lower pressure ring are clamped outside the upper flange and the lower flange, and the tensioning mechanism fixes the upper pressure ring and the lower pressure ring.
The tensioning mechanism comprises fastening bolts distributed along the circumferential direction of the upper pressing ring and the lower pressing ring.
The control valve adopts a copper metal valve, and the surface of the control valve is wrapped with refractory cotton.
The pressure pump adopts manual pressurization, and realizes the one-way delivery of gas by using a piston and a one-way vent valve.
The utility model has the advantages that: this carbon fiber heat preservation rising head keeps warm through the carbon fiber heat preservation, the zone of heating is heated in order to prolong the cooling time of molten metal, and the mode of rethread pressurization makes the feeding go on more thoroughly. The mold filling capacity of the casting mold is improved, shrinkage cavities and slag inclusion are reduced, and the quality of obtained castings is improved.
Drawings
FIG. 1 is a schematic structural view of an embodiment;
fig. 2 is a structural view of the riser body.
Detailed Description
The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.
As shown in fig. 1 to 2, a carbon fiber insulated feeder for receiving molten metal to be fed to a mold, comprises: riser body 1, pressurization pipe 2 and force pump 4.
A feeding cavity is arranged in the riser body 1, and comprises a substrate layer 11, a heating layer 12 and a carbon fiber heat-insulating layer 13 from inside to outside in sequence; the carbon fiber heat preservation layer 13 cladding is in the zone of heating 12 surface, zone of heating 12 embedded electric stove silk 14 that is equipped with.
The pressurizing pipe 2 is connected to an outlet at the upper end of the riser body 1 through a sealing device 3, and a control valve 5 is arranged on the pressurizing pipe 2; the sealing device 3 comprises an upper pressing ring 31, a lower pressing ring 32, a tensioning mechanism 34 and a sealing gasket 33; an upper flange is arranged at the end part of the pressurizing pipe 2, and a lower flange is arranged at the upper end part of the riser body 1; the sealing gasket 33 is arranged between the upper flange and the lower flange, the upper pressure ring 31 and the lower pressure ring 32 are clamped outside the upper flange and the lower flange, and the tensioning mechanism fixes the upper pressure ring 31 and the lower pressure ring 32.
The tensioning mechanism comprises fastening bolts distributed along the circumferential direction of the upper pressing ring 31 and the lower pressing ring 32.
The output port of the pressure pump 4 is communicated with the pressurizing pipe 2.
The control valve 5 is a copper metal valve, and the surface of the control valve 5 is wrapped with refractory cotton.
The pressure pump 4 adopts manual pressurization, and realizes one-way gas conveying by using a piston and a one-way vent valve.
During casting, the riser body 1 is insulated through the carbon fiber insulating layer 13, and the heating layer 12 is heated to prolong the cooling time of the molten metal. The upper port of the riser body 1 and the pressurizing pipe 2 are fixed through the sealing device 3, the control valve 5 is opened, the pressure pump 4 outputs inert gas with set pressure, and feeding is carried out more thoroughly under the pressure.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, but rather is described in the embodiments and descriptions herein to illustrate the principles of the invention and that various changes and modifications may be made without departing from the spirit and scope of the invention, all of which fall within the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents.
In the description of the present invention, it should be understood that the terms "front", "back", "left", "right", "center", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and 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 thus should not be construed as limiting the scope of the present invention.
Claims (5)
1. A carbon fiber insulated riser for receiving molten metal fed to a casting mold, comprising:
the riser comprises a riser body, wherein a feeding cavity is arranged in the riser body, and the feeding cavity comprises a substrate layer, a heating layer and a carbon fiber heat insulation layer from inside to outside in sequence;
the pressurizing pipe is connected to an outlet at the upper end of the riser body through a sealing device, and a control valve is arranged on the pressurizing pipe; and
the output port of the pressure pump is communicated with the pressurizing pipe;
the carbon fiber heat preservation cladding is in the zone of heating surface, the embedded electric stove silk that is equipped with of zone of heating.
2. The carbon fiber insulated riser of claim 1, wherein: the sealing device comprises an upper pressure ring, a lower pressure ring, a tensioning mechanism and a sealing gasket; an upper flange is arranged at the end part of the pressurizing pipe, and a lower flange is arranged at the upper end part of the riser body; the sealing gasket is arranged between the upper flange and the lower flange, the upper pressure ring and the lower pressure ring are clamped outside the upper flange and the lower flange, and the tensioning mechanism fixes the upper pressure ring and the lower pressure ring.
3. The carbon fiber insulated riser of claim 2, wherein: the tensioning mechanism comprises fastening bolts distributed along the circumferential direction of the upper pressing ring and the lower pressing ring.
4. The carbon fiber insulated riser of claim 1, wherein: the control valve adopts a copper metal valve, and the surface of the control valve is wrapped with refractory cotton.
5. The carbon fiber insulated riser of claim 1, wherein: the pressure pump adopts manual pressurization, and realizes the one-way delivery of gas by using a piston and a one-way vent valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021003015.0U CN212884871U (en) | 2020-06-04 | 2020-06-04 | Carbon fiber insulation riser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021003015.0U CN212884871U (en) | 2020-06-04 | 2020-06-04 | Carbon fiber insulation riser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212884871U true CN212884871U (en) | 2021-04-06 |
Family
ID=75275839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021003015.0U Active CN212884871U (en) | 2020-06-04 | 2020-06-04 | Carbon fiber insulation riser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212884871U (en) |
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2020
- 2020-06-04 CN CN202021003015.0U patent/CN212884871U/en active Active
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