CN211727439U - Coreless heating low-pressure casting furnace - Google Patents
Coreless heating low-pressure casting furnace Download PDFInfo
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- CN211727439U CN211727439U CN201922406224.3U CN201922406224U CN211727439U CN 211727439 U CN211727439 U CN 211727439U CN 201922406224 U CN201922406224 U CN 201922406224U CN 211727439 U CN211727439 U CN 211727439U
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Abstract
The utility model provides a centreless heating low pressure pouring furnace, include: the pneumatic coreless heating pouring furnace body, the iron inlet component and the iron inlet cover; the pneumatic coreless heating and pouring furnace body is internally provided with a main cavity, an iron inlet channel and an iron outlet channel; the iron inlet channel and the iron outlet channel are respectively positioned on two sides of the main cavity body, and the bottoms of the iron inlet channel and the iron outlet channel are communicated with the main cavity body; the width of the iron inlet channel is larger than that of the iron outlet channel; the iron inlet component is hermetically connected with the air pressure type coreless heating and pouring furnace body 3; the iron inlet component is internally provided with a heightened iron inlet channel; the lower end of the heightened iron inlet channel is communicated with the upper end of the iron inlet channel; the iron inlet cover is connected with the iron inlet component and can open and close the upper end of the heightened iron inlet channel. The casting method has the advantages that the casting method is characterized by special channel design and water gap design, casting can be carried out only by aligning the mold with the casting port, consumable parts such as ceramic tubes and the like are not required to be lifted into the metal liquid surface, and the material consumption cost is reduced.
Description
Technical Field
The utility model relates to a pouring furnace especially relates to a centreless heating low pressure pouring furnace.
Background
With the development of the aviation industry and the automobile industry, light aluminum alloy castings such as cylinders of aviation engines, and important castings such as cylinders and motor rotors in the automobile industry and the motor industry adopt low-pressure pouring. The pouring process of low-pressure casting comprises the stages of liquid lifting, mold filling, crusting, pressurization, pressure maintaining crystallization, pressure relief and the like, so that better quality of cast products can be obtained. At present, low-pressure pouring is relatively low in automation degree, metal temperature cannot be guaranteed, and liquid level pressure control is not accurate. The pouring gate is raised to the position below the metal liquid level by adopting a ceramic tube, so that the service life is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problem of providing a coreless heating low-pressure casting furnace, which has the special channel design and water gap design, can cast by only aligning a mould with a casting port, does not need consumable parts such as ceramic tubes and the like to be lifted into the metal liquid level, and reduces the material consumption cost; the defects of the prior art are overcome.
The utility model provides a centreless heating low pressure pouring furnace, include: the pneumatic coreless heating and pouring furnace body 3, the iron inlet component 12 and the iron inlet cover 13; the pneumatic coreless heating and pouring furnace body 3 is internally provided with a main cavity 10, an iron inlet channel 11 and an iron outlet channel 4; the iron inlet channel 11 and the iron outlet channel 4 are respectively positioned at two sides of the main cavity 10, and the bottoms of the iron inlet channel and the iron outlet channel are communicated with the main cavity 10; the width of the iron inlet channel 11 is larger than that of the iron outlet channel 4; the iron inlet component 12 is hermetically connected with the air pressure type coreless heating and pouring furnace body 3; a heightened taphole channel 12a is arranged in the taphole component 12; the lower end of the heightened iron inlet channel 12a is communicated with the upper end of the iron inlet channel 11; the iron inlet cover 13 is connected to the iron inlet member 12, and opens and closes the upper end of the heightened iron inlet passage 12 a.
The utility model provides a centreless heating low pressure pouring furnace has such characteristic: the iron inlet channel 11 is divided into an upper iron inlet channel 11a and a lower iron inlet channel 11 b; an opening at the lower end of the upper iron inlet channel 11b is matched with the upper iron inlet channel 11 b; the upper iron inlet channel 11b is provided with an opening at the upper end larger than that at the lower end; the slope of the upper taphole channel 11b at any position is larger than the slope of the lower taphole channel 11 a.
The utility model provides a centreless heating low pressure pouring furnace can also have such characteristic: the opening at the lower end of the heightening iron inlet channel 12a is matched with the opening at the upper end of the upper iron inlet channel 11 b; the upper end opening of the heightened iron inlet channel 12a is larger than the lower end opening; the slope of any position of the heightened taphole port passage 12a is smaller than that of any position of the upper taphole port passage 11 b.
The utility model provides a centreless heating low pressure pouring furnace can also have such characteristic: the taphole channel 4 is divided into three sections, namely a lower taphole channel 4a, a middle taphole channel 4b and an upper taphole channel 4 c; the slope of the middle taphole channel 4b is greater than the slope of the lower taphole channel 4 a; the center of the upper tap hole passage 4c is vertical, and the upper tap hole passage 4c is in a bell mouth shape.
The utility model provides a centreless heating low pressure pouring furnace can also have such characteristic: also comprises a tap hole water gap 6; the tap hole nozzle 6 is hermetically installed at the upper end of the upper tap hole passage 4 c.
The utility model provides a centreless heating low pressure pouring furnace can also have such characteristic: the tap hole water gap 6 is of a flange structure and is provided with a central hole; the lower end of the tap hole water gap 6 is matched with the upper tap hole channel 4 c; the flange of the tap hole water gap 6 is detachably connected with the air pressure type coreless heating and pouring furnace body 3; the central hole of the tap hole nozzle 6 is communicated with the upper tap hole channel 4c and the die.
The utility model provides a centreless heating low pressure pouring furnace can also have such characteristic: also comprises a weighing device 2; the weighing device 2 is arranged below the air pressure type coreless heating and pouring furnace body 3 and can weigh the air pressure type coreless heating and pouring furnace body 3.
The utility model provides a centreless heating low pressure pouring furnace can also have such characteristic: also comprises a tipping device 1; the tipping device 1 is arranged below the pneumatic coreless heating and pouring furnace body 3 and can drive the pneumatic coreless heating and pouring furnace body 3 to turn over.
The utility model provides a centreless heating low pressure pouring furnace can also have such characteristic: also comprises an operation platform railing 5; the operation platform railing 5 is arranged around the pneumatic coreless heating and pouring furnace body 3.
The utility model provides a centreless heating low pressure pouring furnace can also have such characteristic: the iron inlet cover 13 adopts a hydraulic cylinder to automatically open and close the upper end of the heightened iron inlet channel 12 a.
Drawings
FIG. 1 is a top view of a coreless heated low pressure casting furnace.
Fig. 2 is a sectional view a-a of fig. 1.
Fig. 3 is an enlarged view of a portion I of fig. 1.
The specific implementation mode is as follows:
the present invention will be further described with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, the coreless heating low-pressure casting furnace includes: the pneumatic coreless heating casting furnace body 3, the iron inlet component 12, the iron inlet cover 13 and the iron outlet nozzle 6.
The air pressure type coreless heating pouring furnace body 3 realizes the heat preservation heating and air pressure control of the molten iron. The pneumatic coreless heating and pouring furnace body 3 is internally provided with a main cavity 10, an iron inlet channel 11 and an iron outlet channel 4. The iron inlet channel 11 and the iron outlet channel 4 are respectively positioned at two sides of the main cavity 10, and the bottom of the iron inlet channel and the bottom of the iron outlet channel are communicated with the main cavity 10. The width of the taphole channel 11 is larger than the width of the taphole channel 4.
The iron inlet component 12 is connected with the pneumatic coreless heating and pouring furnace body 3 in a sealing way. The taphole member 12 has a raised taphole channel 12a therein. The lower end of the heightened taphole channel 12a is communicated with the upper end of the taphole channel 11.
The iron inlet cover 13 is connected to the iron inlet member 12, and opens and closes the upper end of the heightened iron inlet passage 12 a. In this embodiment, the metal inlet cover 13 is automatically opened and closed by a hydraulic cylinder to heighten the upper end of the metal inlet channel 12a, so as to facilitate the feeding of molten metal into the furnace and the emptying of the molten metal in the furnace.
In this embodiment, the taphole channel 11 is divided into an upper section and a lower section, namely a lower taphole channel 11a and an upper taphole channel 11 b. The opening at the lower end of the upper tap-hole passage 11b is matched with the upper tap-hole passage 11 b. The upper tap hole passage 11b has an opening at the upper end larger than that at the lower end. Since the upper tap hole passage 11b is not of a uniform diameter from top to bottom, the slope is different for each position. The slope of the upper taphole channel 11b at any position is larger than the slope of the lower taphole channel 11 a.
In this embodiment, the lower opening of the raised taphole channel 12a is matched with the upper opening of the upper taphole channel 11 b. The upper end opening of the heightened taphole channel 12a is larger than the lower end opening. The slope of any position of the heightened taphole port passage 12a is smaller than that of any position of the upper taphole port passage 11 b. The iron inlet channel 11 and the heightened iron inlet channel 12a form a complete iron inlet channel, so that the convenience of the iron adding of the furnace body is ensured, and the molten iron in the furnace can be completely emptied when the furnace body is tipped over. The reliable sealing of assembly back iron notch component 12 and vapour-pressure type centreless heating pouring furnace body 3 ensures that no gas leakage centreless heating low pressure pouring furnace seal structure everywhere belongs to prior art, does not the utility model discloses in detail the explanation.
In this embodiment, the taphole channel 4 is divided into three sections, namely a lower taphole channel 4a, a middle taphole channel 4b and an upper taphole channel 4 c. The slope of the middle taphole channel 4b is larger than the slope of the lower taphole channel 4 a. The center of the upper tap hole passage 4c is vertical, and the upper tap hole passage 4c is in a bell mouth shape. In this embodiment, the tap hole nozzle 6 is sealingly mounted at the upper end of the upper tap hole passage 4 c. The tap hole water gap 6 is of a flange structure and is provided with a central hole. The lower end of the tap hole water gap 6 is matched with the upper tap hole channel 4 c. The flange of the tap hole water gap 6 is detachably connected with the air pressure type coreless heating and pouring furnace body 3 through bolts 7, so that the replacement and the repair of the tap hole water gap 6 are convenient. The central hole of the tap hole nozzle 6 communicates the upper tap hole passage 4c and the die 9. Of course, a sealing member 8 is arranged between the tap hole water gap 6 and the mould 9, so that molten iron only enters the mould and cannot leak at the interface. The tap hole nozzle 6 ensures that molten iron is pressed into the upper die 9 from the central hole of the tap hole nozzle 6 when the molten iron is extruded from the tap hole channel. The tapping hole channel 4 is matched with the tapping hole water gap 6 for use, so that parts such as a ceramic tube and the like are not required to be inserted into molten iron, and the maintenance amount of equipment is reduced.
Preferably, the coreless heating low-pressure casting furnace further comprises a weighing device 2, a tipping device 1 and an operation platform railing 5. The weighing device 2 is arranged below the air pressure type coreless heating and pouring furnace body 3, can weigh the molten iron amount of the air pressure type coreless heating and pouring furnace body 3 in real time, and feeds the molten iron amount back to the air pressure control system. The tipping device 1 is arranged below the air pressure type coreless heating and pouring furnace body 3 and the weighing device 2, and can drive the air pressure type coreless heating and pouring furnace body 3 to turn over for emptying molten iron in the air pressure type coreless heating and pouring furnace body 3. The operation platform railing 5 is arranged around the air pressure type coreless heating and pouring furnace body 3 and is used for operation, maintenance and the like.
The coreless heating low-pressure casting furnace can be cast only by aligning the mold with the casting port, and consumable parts such as ceramic tubes and the like are not required to be lifted into the metal liquid surface, so that the material consumption cost is reduced; the casting device has the functions of heat preservation and rapid heating of molten metal, the casting temperature is accurately controlled, and the casting process can be better guaranteed; the weighing unit feeds back the weight, the liquid level and the pouring pressure in time, and the control is accurate; the furnace cover of the iron inlet can be made into an automatic opening and closing device, and molten iron is convenient to add. The molten iron can be completely emptied, and the mark can be replaced or the molten iron can be conveniently processed after long-time shutdown.
Above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the design of the present invention, equivalent replacement or change should be covered within the protection scope of the present invention.
Claims (10)
1. A coreless heating low-pressure casting furnace is characterized in that: the method comprises the following steps: a pneumatic coreless heating and pouring furnace body (3), an iron inlet component (12) and an iron inlet cover (13);
wherein, the air pressure type coreless heating and pouring furnace body (3) is internally provided with a main cavity (10), an iron inlet channel (11) and an iron outlet channel (4); the iron inlet channel (11) and the iron outlet channel (4) are respectively positioned at two sides of the main cavity (10), and the bottoms of the iron inlet channel and the iron outlet channel are communicated with the main cavity (10); the width of the iron inlet channel (11) is larger than that of the iron outlet channel (4);
the iron inlet component (12) is hermetically connected with the air pressure type coreless heating and pouring furnace body (3); a heightened iron inlet channel (12a) is arranged in the iron inlet component (12); the lower end of the heightened iron inlet channel (12a) is communicated with the upper end of the iron inlet channel (11);
the iron inlet cover (13) is connected with the iron inlet component (12) and can open and close the upper end of the heightened iron inlet channel (12 a).
2. The coreless, heated, low pressure casting furnace of claim 1, wherein:
the iron inlet channel (11) is divided into an upper iron inlet channel (11a) and a lower iron inlet channel (11 b);
an opening at the lower end of the upper iron inlet channel (11b) is matched with the upper iron inlet channel (11 b); the upper iron inlet channel (11b) is provided with an opening at the upper end larger than that at the lower end;
the slope of any position of the upper iron inlet channel (11b) is larger than that of the lower iron inlet channel (11 a).
3. The coreless, heated, low pressure casting furnace of claim 2, wherein:
wherein, the opening at the lower end of the heightened taphole channel (12a) is matched with the opening at the upper end of the upper taphole channel (11 b); the upper end opening of the heightened iron inlet channel (12a) is larger than the lower end opening;
the slope of any position of the heightened taphole inlet channel (12a) is smaller than that of any position of the upper taphole inlet channel (11 b).
4. The coreless, heated, low pressure casting furnace of claim 1, wherein:
the tapping hole channel (4) is divided into three sections, namely a lower tapping hole channel (4a), a middle tapping hole channel (4b) and an upper tapping hole channel (4 c);
the slope of the middle taphole channel (4b) is greater than the slope of the lower taphole channel (4 a);
the center of the upper taphole channel (4c) is vertical, and the upper taphole channel (4c) is in a bell mouth shape.
5. The coreless, heated, low pressure casting furnace of claim 4, wherein:
also comprises a tap hole water gap (6); the tap hole water gap (6) is hermetically arranged at the upper end of the upper tap hole channel (4 c).
6. The coreless, heated, low pressure casting furnace of claim 5, wherein:
wherein the tap hole water gap (6) is of a flange structure and is provided with a central hole;
the lower end of the tap hole water gap (6) is matched with the upper tap hole channel (4 c);
the flange of the tap hole water gap (6) is detachably connected with the air pressure type coreless heating and pouring furnace body (3);
and a central hole of the tap hole water gap (6) is communicated with the upper tap hole channel (4c) and the die.
7. The coreless, heated, low pressure casting furnace of claim 1, wherein:
also comprises a weighing device (2); the weighing device (2) is arranged below the air pressure type coreless heating and pouring furnace body (3) and can weigh the air pressure type coreless heating and pouring furnace body (3).
8. The coreless, heated, low pressure casting furnace of claim 1, wherein:
also comprises a tipping device (1); the tipping device (1) is arranged below the air pressure type coreless heating and pouring furnace body (3) and can drive the air pressure type coreless heating and pouring furnace body (3) to turn over.
9. The coreless, heated, low pressure casting furnace of claim 1, wherein:
the operation platform comprises an operation platform railing (5); the operation platform railing (5) is arranged around the air pressure type coreless heating and pouring furnace body (3).
10. The coreless, heated, low pressure casting furnace of claim 1, wherein:
the iron inlet cover (13) is automatically opened and closed by a hydraulic cylinder, and the upper end of the heightened iron inlet channel (12a) is closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922406224.3U CN211727439U (en) | 2019-12-27 | 2019-12-27 | Coreless heating low-pressure casting furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922406224.3U CN211727439U (en) | 2019-12-27 | 2019-12-27 | Coreless heating low-pressure casting furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211727439U true CN211727439U (en) | 2020-10-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922406224.3U Active CN211727439U (en) | 2019-12-27 | 2019-12-27 | Coreless heating low-pressure casting furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211727439U (en) |
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2019
- 2019-12-27 CN CN201922406224.3U patent/CN211727439U/en active Active
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