CN216461632U - Sealing detection device for low-pressure casting heat preservation furnace - Google Patents
Sealing detection device for low-pressure casting heat preservation furnace Download PDFInfo
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- CN216461632U CN216461632U CN202122675756.4U CN202122675756U CN216461632U CN 216461632 U CN216461632 U CN 216461632U CN 202122675756 U CN202122675756 U CN 202122675756U CN 216461632 U CN216461632 U CN 216461632U
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Abstract
The utility model provides a sealing detection device for a low-pressure casting holding furnace, and belongs to the technical field of casting equipment. The device comprises a heat preservation furnace cover, a liquid injection port sealing cover, a liquid lifting pipe sleeve cover, a liquid lifting pipe port flat cover and a liquid lifting pipe port sealing and locking frame. The device is used for closing the air inlet valve after the riser pipe orifice is sealed and pressure is given by a casting machine, and detecting the sealing condition of the holding furnace by watching the pressure maintaining condition of the pressure gauge, so that the absolute sealing of the holding furnace is realized. The sealing performance of the holding furnace is detected by using the sealing detection device before pouring, so that the given pouring pressure in the pouring process is guaranteed to be real and effective, no loss or discount is caused, and stable pouring is realized.
Description
Technical Field
The utility model provides a sealing detection device for a low-pressure casting holding furnace, and belongs to the technical field of casting equipment.
Background
The low-pressure pouring of non-ferrous metal is realized by means of pouring pressure set in the process, outputting set pressure to a heat-insulating furnace by means of a pouring machine, and pressing molten metal into a casting mold through a riser tube. Under the condition that the sealing of the heat preservation furnace is not in place, the given pressure of the casting machine is subjected to variable loss, so that the actual casting pressure is unstable and suddenly high and low, the quality of the cast is unstable, the local mold filling of the cast is insufficient, and the cast is scrapped.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a sealing detection device for a low-pressure casting holding furnace, which is used for sealing a riser pipe opening, setting pressure by using a casting machine, closing an air inlet valve, and detecting the sealing condition of the holding furnace by watching the pressure maintaining condition of a pressure gauge so as to realize absolute sealing of the holding furnace. The sealing performance of the holding furnace is detected by using the sealing detection device before pouring, so that the given pouring pressure in the pouring process is guaranteed to be real and effective, no loss or discount is caused, and stable pouring is realized.
The technical method adopted by the utility model for solving the technical problem comprises the following steps: the device comprises a heat preservation furnace cover 1, a liquid injection port sealing cover 2, a liquid lifting pipe sleeve cover 3, a liquid lifting pipe port flat cover 4 and a liquid lifting pipe port sealing and locking frame 5. The heat preservation furnace cover 1 is of a stop opening structure, a graphite packing is padded in the stop opening, and the graphite packing is fastened with the heat preservation furnace body 6 through bolts; the liquid injection port sealing cover 2 is a plane structure provided with double grooves, graphite packing is filled in the grooves, and the grooves are fastened with the heat preservation furnace body 6 by bolts; the riser tube sleeve cover 3 is of a flange structure, the riser tube 7 is sleeved and sealed on the heat preservation furnace body 6, a refractory mortar coated rear cushion asbestos cushion is arranged in the interface, and the interface is fastened with the heat preservation furnace body 6 by bolts; the liquid lifting pipe orifice flat cover 4 presses the port of the liquid lifting pipe 7 through the liquid lifting pipe orifice sealing and locking frame 5, and the middle part is padded with a asbestos sealing pad.
The sealing and locking frame 5 of the liquid lifting pipe orifice is of a structure of screwing a towel-shaped bolt, a nut is fixed in the locking frame, the flat cover 4 of the liquid lifting pipe orifice is tightly pressed through the screwing bolt to seal the port of the liquid lifting pipe 7, after the whole furnace body is sealed, a pressure system of a casting machine is started to supply pressure, an air inlet valve is cut off after the pressure is supplied, the pressure maintaining condition of a pressure gauge is observed, and whether the heat preservation furnace is well sealed or not is tested.
The beneficial effects of the utility model are: the device has simple structure and rapid and visual detection. The sealing performance of the heat preservation furnace is detected before pouring, so that the stability of the whole pouring process is ensured, the stability of the output working pressure parameter of the pouring machine is ensured, and the pouring pressure is real and effective.
Drawings
The utility model is described in further detail below with reference to the following figures and embodiments:
FIG. 1 is a schematic view of a sealing detection device of a low-pressure casting holding furnace;
fig. 2 is a sealing and locking structure diagram of the riser nozzle.
In the figure: 1-heat preservation furnace cover, 2-liquid injection port sealing cover, 3-riser sleeve cover, 4-riser pipe opening flat cover, 5-riser pipe opening sealing and locking frame, 6-heat preservation furnace body and 7-riser pipe.
The specific implementation mode is as follows:
as shown in figure 1, the device comprises a heat preservation furnace cover 1, a liquid injection port sealing cover 2, a liquid lifting pipe sleeve cover 3, a liquid lifting pipe port flat cover 4 and a liquid lifting pipe port sealing and locking frame 5. The heat preservation furnace cover 1 is of a stop opening structure, a graphite packing is padded in the stop opening, and the graphite packing is fastened with the heat preservation furnace body 6 through bolts; the liquid injection port sealing cover 2 is a plane structure provided with double grooves, graphite packing is filled in the grooves, and the grooves are fastened with the heat preservation furnace body 6 by bolts; the riser tube sleeve cover 3 is of a flange structure, the riser tube 7 is sleeved and sealed on the heat preservation furnace body 6, a refractory mortar coated rear cushion asbestos cushion is arranged in the interface, and the interface is fastened with the heat preservation furnace body 6 by bolts; the liquid lifting pipe orifice flat cover 4 presses the port of the liquid lifting pipe 7 through the liquid lifting pipe orifice sealing and locking frame 5, and the middle part is padded with a asbestos sealing pad.
The sealing and locking frame 5 of the liquid lifting pipe orifice is of a structure of screwing a towel-shaped bolt, a nut is fixed in the locking frame, the flat cover 4 of the liquid lifting pipe orifice is tightly pressed through the screwing bolt to seal the port of the liquid lifting pipe 7, after the whole furnace body is sealed, a pressure system of a casting machine is started to supply pressure, an air inlet valve is cut off after the pressure is supplied, the pressure maintaining condition of a pressure gauge is observed, and whether the heat preservation furnace is well sealed or not is tested.
Claims (2)
1. The low-pressure casting heat preservation furnace sealing detection device is characterized in that: the device comprises a heat preservation furnace cover (1), a liquid injection port sealing cover (2), a liquid lifting pipe sleeve cover (3), a liquid lifting pipe orifice flat cover (4) and a liquid lifting pipe orifice sealing and locking frame (5), wherein the heat preservation furnace cover (1) is of a front opening structure, a graphite packing is padded in a front opening, and the front opening is fastened with a heat preservation furnace body (6) through bolts; the liquid injection port sealing cover (2) is a plane structure provided with double grooves, graphite packing is filled in the grooves, and the grooves are fastened with the heat preservation furnace body (6) by bolts; the riser tube sleeve cover (3) is of a flange structure, the riser tube (7) is sleeved and sealed on the heat-preservation furnace body (6), a refractory mortar coated rear cushion asbestos cushion is arranged in the interface, and the interface is fastened with the heat-preservation furnace body (6) by bolts; the liquid lifting pipe orifice flat cover (4) is pressed on the port of the liquid lifting pipe (7) through the liquid lifting pipe orifice sealing and locking frame (5), and the middle is padded with a asbestos sealing pad.
2. The sealing detection device for the low-pressure casting holding furnace as claimed in claim 1, wherein: the sealing and locking frame (5) of the liquid lifting pipe orifice is of a structure of screwing a towel-shaped bolt, a nut is fixed in the locking frame, the flat cover (4) of the liquid lifting pipe orifice is tightly pressed by screwing the bolt to seal the port of a liquid lifting pipe (7), a pressure system is started to boost and maintain pressure after the whole furnace body is sealed, and whether the pressure changes in the pressure maintaining stage is observed to test whether the heat preservation furnace is well sealed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122675756.4U CN216461632U (en) | 2021-11-04 | 2021-11-04 | Sealing detection device for low-pressure casting heat preservation furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122675756.4U CN216461632U (en) | 2021-11-04 | 2021-11-04 | Sealing detection device for low-pressure casting heat preservation furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216461632U true CN216461632U (en) | 2022-05-10 |
Family
ID=81446016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122675756.4U Active CN216461632U (en) | 2021-11-04 | 2021-11-04 | Sealing detection device for low-pressure casting heat preservation furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216461632U (en) |
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2021
- 2021-11-04 CN CN202122675756.4U patent/CN216461632U/en active Active
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