CN110947938A - Vacuum hot shell casting device and working method - Google Patents
Vacuum hot shell casting device and working method Download PDFInfo
- Publication number
- CN110947938A CN110947938A CN202010120145.0A CN202010120145A CN110947938A CN 110947938 A CN110947938 A CN 110947938A CN 202010120145 A CN202010120145 A CN 202010120145A CN 110947938 A CN110947938 A CN 110947938A
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- vacuum
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/15—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting by using vacuum
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D35/00—Equipment for conveying molten metal into beds or moulds
- B22D35/04—Equipment for conveying molten metal into beds or moulds into moulds, e.g. base plates, runners
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D27/00—Stirring devices for molten material
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/0025—Charging or loading melting furnaces with material in the solid state
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- General Engineering & Computer Science (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a vacuum hot shell pouring device and a working method thereof, and the device comprises a smelting vacuum tank with a smelting vacuum chamber and a casting vacuum tank with a casting vacuum chamber, wherein the smelting vacuum tank and the casting vacuum tank are communicated through a vacuum stop flow guide device, a secondary and repeated feeding device and a metal component uniform stirring device are installed on the smelting vacuum tank, a smelting furnace is arranged in the smelting vacuum tank, a graphite stirring rod is connected below the metal component uniform stirring device and is positioned in the smelting vacuum chamber, a feeding guide pipe is arranged at the lower end of the secondary and repeated feeding device, the outlet of the feeding guide pipe is positioned right above the smelting furnace, a casting disc is arranged in the casting vacuum tank, and a hot mould shell is placed on the casting disc.
Description
Technical Field
The invention relates to the technical field of metal casting, in particular to a vacuum hot shell casting device.
Background
Vacuum casting, in which molten metal melted in the atmosphere is poured into a mold shell in a vacuum chamber to form an ingot, also called vacuum ingot casting. The gas content in the metal can be minimized and the metal can be prevented from being oxidized. The method can be used for producing special alloy steel castings with high requirements, titanium alloy castings which are easy to oxidize, and the like. The vacuum casting cost is high, the vacuum casting method is generally used for smelting alloys and high-quality castings which have high vapor pressure and are easy to volatilize and lose, and the casting mold does not contain volatile matters.
At present, because metal material smelting and casting are two processes, the existing vacuum hot shell casting device is difficult to realize that smelting and casting are respectively kept in vacuum and are not influenced mutually, and pores are inevitably generated in a cast product, so that the quality of the product is unstable.
Disclosure of Invention
The invention aims to provide a vacuum hot shell casting device and a working method.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the utility model provides a vacuum hot shell casting device, is including having the real empty room of smelting's the real empty room of smelting and having the real empty room of casting's the real empty room of casting, it ends guiding device and is linked together through the vacuum between the real empty room of smelting and the real empty room of casting, it installs secondary and many times feeding device and metal composition uniform mixing device to smelt on the real empty room, it is equipped with the smelting furnace in the real empty room of smelting, even mixing device's of metal composition below even has the graphite stirring rod, the graphite stirring rod is located and smelts the real empty room, the lower extreme of secondary and many times feeding device is the reinforced stand pipe, the export of reinforced stand pipe is located directly over the smelting furnace, be equipped with the casting disc in the real empty room of casting.
The secondary and repeated feeding device comprises a charging barrel, an upper cover of the feeding device is arranged at the upper part of the charging barrel, a feeding opening is formed in the upper cover of the feeding device, a vacuum valve of the feeding opening is arranged on the feeding opening, a plurality of material separation grids which are uniformly distributed along the circumferential direction are arranged in the charging barrel, a bottom circular plate is arranged at the lower part of each material separation grid, a bottom circular plate notch is formed in the bottom circular plate, a central shaft is arranged above the bottom circular plate along the axial direction of the charging barrel, and the central shaft extends upwards from the upper cover of the feeding device and is fixedly connected with a hand wheel; the inner sides of all the material separation grids are fixedly connected with the central shaft, and the outer sides of all the material separation grids are contacted with the inner wall of the charging barrel; the size of the gap of the bottom circular plate is smaller than or equal to the size of a sector formed by the two adjacent material separation grids.
Wherein, a cylinder isolation vacuum valve is arranged on the charging guide pipe.
The vacuum stop diversion device comprises a diversion pipe, the diversion pipe is used for communicating the smelting vacuum chamber with the casting vacuum chamber, the vacuum stop diversion device further comprises a diversion trench, the diversion trench is located at the bottom of the smelting vacuum chamber and inclines towards the casting vacuum chamber, the tail end of the diversion trench is located right above the diversion pipe and is provided with a diversion outlet, a diversion funnel is fixed in the diversion pipe and is located right above the diversion funnel, and smelted molten metal can flow into the casting vacuum chamber through the diversion funnel.
Wherein, a diversion vacuum valve is arranged on the diversion pipe.
The metal component uniform stirring device comprises a stirring rod connecting rod, a stirring rod connecting rod cooling water pipe is arranged in the stirring rod connecting rod, a sealing part is arranged at the middle part of the stirring rod connecting rod, and the lower end of the stirring rod connecting rod is connected with the graphite stirring rod.
Wherein, the sealing includes can swing soft sealing gum cover, can swing the upper end of soft sealing gum cover and be equipped with JO sealing washer installation cylinder body, be equipped with the JO sealing washer of a plurality of from last to closely arranging in the JO sealing washer installation cylinder body, be equipped with JO sealing washer interval support between two adjacent JO sealing washers, the upper end of JO sealing washer installation cylinder body is equipped with JO sealing washer gland, the stirring rod connecting rod passes JO sealing washer gland, JO sealing washer in proper order and can swing soft sealing gum cover.
A smelting vacuum tank cover is arranged at one end of the smelting vacuum tank, which is far away from the casting vacuum tank; and the smelting vacuum tank is provided with a casting vacuum tank upper cover.
The casting vacuum tank is arranged on the tank body moving trolley, and the tank body moving trolley can move along a trolley track.
The working method of the vacuum hot shell casting device provided by the invention specifically comprises the following steps: when smelting, closing a flow guide vacuum valve on the vacuum stop flow guide device, and extracting vacuum for smelting; when the smelting is finished, opening the casting vacuum chamber, and putting the roasted thermal formwork on a casting disc of the casting vacuum chamber; closing the casting vacuum chamber, after vacuum pumping, opening a vacuum stop flow guide device, pouring molten metal into a flow guide groove, enabling the molten metal to flow into a hot mould shell through the vacuum stop flow guide device to finish casting, rotating a casting disc to enable a next mould shell to be aligned to the vacuum stop flow guide device, continuing casting, after casting is finished, closing a flow guide vacuum valve, relieving vacuum, opening the casting vacuum chamber, and taking out a product.
Compared with the prior art, the invention has the outstanding effects that:
(1) the vacuum hot shell casting device can keep the vacuum state of molten metal in the smelting, charging and casting processes from being damaged, and ensure the product quality.
(2) The metal component uniform stirring device can uniformly mix all elements of molten metal in the smelting furnace by stirring under the condition of not damaging the vacuum condition in the tank body. The secondary and multiple feeding devices can add various raw materials required by smelting into the smelting furnace on the premise of ensuring the vacuum state of the smelting vacuum chamber.
(3) The vacuum stop flow guide device can keep the vacuum state of the smelting vacuum chamber during smelting; during casting, the smelting vacuum chamber and the casting vacuum chamber are communicated, and a drainage effect is achieved.
The vacuum hot shell casting device and the working method of the invention are further explained in the following by referring to the description of the figures and the specific embodiments.
Drawings
FIG. 1 is a front view of a vacuum hot shell casting apparatus of the present invention;
FIG. 2 is a cross-sectional view taken in the direction "A-A" of FIG. 1;
FIG. 3 is a left side view of the vacuum hot shell casting apparatus of the present invention;
FIG. 4 is a cross-sectional view taken in the direction "B-B" of FIG. 3;
FIG. 5 is a top view of the secondary and multi-feed devices;
FIG. 6 is a cross-sectional view of the secondary and multiple charging devices taken along the direction "C-C" in FIG. 5;
FIG. 7 is a top view of the spacer grid and bottom disk;
FIG. 8 is a left side view of the vacuum stop baffle;
FIG. 9 is a cross-sectional view taken in the direction "D-D" of FIG. 8;
FIG. 10 is an enlarged view of a portion of FIG. 9 at "I";
FIG. 11 is a left side view at the metal component homogenizing device;
FIG. 12 is a cross-sectional view taken in the direction "E-E" of FIG. 11;
FIG. 13 is an enlarged view of a portion of FIG. 12 at "II";
fig. 14 is a partially enlarged view of "III" in fig. 12.
Wherein, 1-a smelting vacuum tank, 11-a smelting vacuum tank cover, 12-a smelting furnace, 13-a graphite stirring rod, 14-a smelting vacuum chamber, 2-a casting vacuum tank, 21-a casting vacuum tank upper cover, 22-a casting disc, 23-a casting vacuum chamber, 3-a tank body moving trolley, 4-a trolley track, 100-a secondary and multiple feeding device, 101-a hand wheel, 102-a charging opening vacuum valve, 103-a feeding device upper cover, 104-a charging barrel, 105-a material separation grid, 106-a bottom circular plate, 107-a barrel isolation vacuum valve, 108-a feeding guide pipe, 109-a bottom circular plate notch, 200-a vacuum stop guide device, 201-a guide groove, 202-a guide funnel, 203-a guide vacuum valve and 204-a valve plate, 300-metal component uniform stirring device, 301-stirring rod connecting rod, 302-sealing part, 303-swingable soft sealing rubber sleeve, 304-stirring rod connecting rod cooling water pipe, 305-JO sealing ring, 306-JO sealing ring gland, 307-JO sealing ring interval support and 308-JO sealing ring installation cylinder body.
Detailed Description
As shown in fig. 1-14, a vacuum hot shell casting device comprises a smelting vacuum tank 1 with a smelting vacuum chamber 14 and a casting vacuum tank 2 with a casting vacuum chamber 23, wherein the smelting vacuum tank 1 and the casting vacuum tank 2 are communicated through a vacuum stop guide device 200, a secondary and repeated feeding device 100 and a metal component uniform stirring device 300 are installed on the smelting vacuum tank 1, a smelting furnace 12 is arranged in the smelting vacuum tank 1, a graphite stirring rod 13 is connected below the metal component uniform stirring device 300, the graphite stirring rod 13 is positioned in the smelting vacuum chamber 14, a feeding guide pipe 108 is arranged at the lower end of the secondary and repeated feeding device 100, the outlet of the feeding guide pipe 108 is positioned right above the smelting furnace 12, a casting disc 22 is arranged in the casting vacuum tank 2, and a hot shell is placed on the casting disc 22.
The secondary and repeated feeding device 100 comprises a charging barrel 104, the upper part of the charging barrel 104 is provided with a feeding device upper cover 103, the feeding device upper cover 103 is provided with a feeding port, a feeding port vacuum valve 102 is arranged on the feeding port, a plurality of material separation grids 105 which are uniformly distributed along the circumferential direction are arranged in the charging barrel 104, the lower parts of the material separation grids 105 are provided with a bottom circular plate 106, a bottom circular plate notch 109 is arranged on the bottom circular plate 106, a central shaft is arranged above the bottom circular plate 106 along the axial direction of the charging barrel 104, and the central shaft extends upwards from the feeding device upper cover 103 and is fixedly connected with a hand wheel 101; the inner sides of all the material separation grids 105 are fixedly connected with the central shaft, and the outer sides of all the material separation grids 105 are contacted with the inner wall of the charging barrel 104; the size of the bottom circular plate notch 109 is smaller than or equal to the size of a sector formed by the clamping of two adjacent material separation grids 105. The charging guide pipe 108 is provided with a cylinder isolation vacuum valve 107. During smelting, closing a barrel isolation vacuum valve between the feeding device and the vacuum smelting chamber, opening an upper cover of the feeding device, sequentially adding the materials into a bin separated by a material separation grid according to the adding sequence of the smelting materials, pressing the upper cover of the feeding device tightly and sealing the upper cover by using bolts after the feeding is finished, opening a feeding port vacuum valve to extract vacuum, and closing the feeding port vacuum valve on the upper cover of the feeding device when the vacuum state is obtained; when the material needs to be fed in the smelting process, the barrel isolation vacuum valve is opened, the hand wheel is rotated, the material separation grid with the raw materials is aligned to the notch of the inner bottom circular plate of the charging barrel, and the materials fall into the smelting furnace through the barrel isolation vacuum valve and the feeding guide pipe.
The vacuum stop diversion device 200 comprises a diversion pipe which communicates the smelting vacuum chamber 14 with the casting vacuum chamber 23, the vacuum stop diversion device 200 further comprises a diversion trench 201, the diversion trench 201 is located at the bottom of the smelting vacuum chamber 14 and inclines towards the casting vacuum chamber 23, the tail end of the diversion trench 201 is located right above the diversion pipe and is provided with a diversion outlet, a diversion funnel 202 is fixed in the diversion pipe and is located right above the diversion funnel 202, and smelted molten metal can flow into the casting vacuum chamber 23 through the diversion funnel 202. As shown in fig. 10, a guide vacuum valve 203 with a valve plate 204 is provided on the guide tube, and one side of the valve plate 204 of the guide vacuum valve 203 is fixed with the guide funnel 202. When the diversion vacuum valve 203 is closed, the valve plate 204 is in a horizontal state, and the diversion funnel 202 is also horizontally placed; when the diversion vacuum valve 203 is opened, the valve plate 204 is in a vertical state, and the diversion funnel 202 is also in a vertical position at the moment. When smelting, the vacuum stop guide device is closed, so that the vacuum casting chamber can work independently and can be switched between a vacuum state and a non-vacuum state, and the vacuum state of the smelting vacuum chamber cannot be damaged when workers can carry the thermal formwork in the casting vacuum chamber. During casting, the vacuum stop flow guide device is opened after the casting vacuum chamber reaches a vacuum state, the flow guide vacuum valve is opened to enable the valve plate and the flow guide funnel to be in a vertical position, and the metal liquid is guided through the flow guide funnel.
The metal component uniform stirring device 300 comprises a stirring rod connecting rod 301, a stirring rod connecting rod cooling water pipe 304 is arranged in the stirring rod connecting rod 301, a sealing part 302 is arranged in the middle of the stirring rod connecting rod 301, and the lower end of the stirring rod connecting rod 301 is connected with a graphite stirring rod 13. The sealing part 302 comprises a swingable soft sealing rubber sleeve 303, the upper end of the swingable soft sealing rubber sleeve 303 is provided with a JO sealing ring mounting cylinder 308, a plurality of JO sealing rings 305 which are closely arranged from top to bottom are arranged in the JO sealing ring mounting cylinder 308, a JO sealing ring interval support 307 is arranged between every two adjacent JO sealing rings 305, the upper end of the JO sealing ring mounting cylinder 308 is provided with a JO sealing ring gland 306, and the stirring rod connecting rod 301 sequentially penetrates through the JO sealing ring gland 306, the JO sealing rings 305 and the swingable soft sealing rubber sleeve 303. During the use, the stirring rod connecting rod can slide through the sealing, stretches into the smelting furnace to the graphite stirring rod, through clockwise/anticlockwise stirring, makes the metal liquid misce bene in the smelting furnace. The connecting rod of the stirring rod can be cooled by water.
A smelting vacuum tank cover 11 is arranged at one end of the smelting vacuum tank 1 far away from the casting vacuum tank 2; the smelting vacuum tank 1 is provided with a casting vacuum tank upper cover 21. The casting vacuum tank 2 is arranged on a tank body moving trolley 3, and the tank body moving trolley 3 can move along a trolley track 4.
The working method of the vacuum hot shell casting device comprises the following steps:
when smelting, closing a flow guide vacuum valve on the vacuum stop flow guide device, opening a vacuum pump of the smelting chamber, and vacuumizing the smelting vacuum chamber for smelting;
when the smelting is finished, opening a casting vacuum chamber: at the moment, an oil cylinder jacking device (positioned on the upper surface of a tank body moving trolley) below the casting vacuum tank falls down to enable the lower body of the casting vacuum tank to move downwards and separate from the upper cover of the casting vacuum tank (because the upper cover of the casting vacuum tank, a vacuum stop flow guide device and a smelting vacuum chamber are fixed into a whole, the upper cover of the casting vacuum tank does not move along with the lower body of the casting vacuum tank), the lower body of the casting vacuum tank moves downwards until the lower body completely falls on the tank body moving trolley, then the tank body moving trolley is translated to the position of one tank body along a trolley track through a hydraulic device, and at the moment, the casting vacuum chamber is completely opened;
placing the baked thermal mould shell on a casting turntable of a casting vacuum chamber;
closing the casting vacuum chamber: the tank body moving trolley returns to the initial position along the trolley track, the oil cylinder jacking device below the casting vacuum tank is lifted, the lower body of the casting vacuum tank and the upper cover of the casting vacuum tank are closed, and at the moment, the casting vacuum chamber is completely closed;
opening a vacuum pump of a casting chamber, opening a flow guide vacuum valve in a vacuum stop flow guide device after the vacuum pump of the casting vacuum chamber extracts vacuum, lifting the bottom of the smelting furnace upwards through a furnace lifting device connected with the bottom of the smelting furnace, slowly rotating and dumping the smelting furnace by about 90 degrees, pouring molten metal into a flow guide groove, and enabling the molten metal to flow into a hot mould shell through the vacuum stop flow guide device to finish casting;
rotating the casting disc: the bottom of the casting disc is provided with a speed reducer, and the transmission of the speed reducer is controlled by controlling the power input (such as a motor, a hand wheel and the like) outside the casting vacuum chamber, so that the casting disc is driven to rotate left and right;
the distance between a pouring gate of the mould shell (namely an opening for flowing molten metal in the mould shell) and the wall of the casting vacuum chamber is adjusted to be consistent with the distance between a flow guide opening (namely a molten metal outlet on a flow guide funnel) and the wall of the casting vacuum chamber (because a casting disc can only adjust the left-right distance between the pouring gate of the mould shell and the flow guide opening, the front-back position between the pouring gate and the flow guide opening needs to be fixed when the mould shell is put in), the next mould shell is aligned to a vacuum stop flow guide device, the casting is continued, after the casting is finished, a flow guide vacuum valve is closed, the vacuum is released, the casting vacuum chamber is opened (the same opening way is adopted.
The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.
Claims (9)
1. The utility model provides a hot shell pouring device in vacuum which characterized in that: the device comprises a smelting vacuum tank (1) with a smelting vacuum chamber (14) and a casting vacuum tank (2) with a casting vacuum chamber (23), wherein the smelting vacuum tank (1) and the casting vacuum tank (2) are communicated through a vacuum stop flow guide device (200), a secondary and repeated feeding device (100) and a metal component uniform stirring device (300) are installed on the smelting vacuum tank (1), a smelting furnace (12) is arranged in the smelting vacuum tank (1), a graphite stirring rod (13) is connected below the metal component uniform stirring device (300), the graphite stirring rod (13) is positioned in the smelting vacuum chamber (14), a feeding guide pipe (108) is arranged at the lower end of the secondary and repeated feeding device (100), an outlet of the feeding guide pipe (108) is positioned right above the smelting furnace (12), a casting disc (22) is arranged in the casting vacuum tank (2), a thermal mould shell is arranged on the casting disc (22); the vacuum stop diversion device (200) comprises a diversion pipe and a diversion trench (201), and a diversion vacuum valve (203) is arranged on the diversion pipe.
2. The vacuum hot shell casting apparatus of claim 1, wherein: the secondary and repeated feeding device (100) comprises a charging barrel (104), the upper part of the charging barrel (104) is provided with a feeding device upper cover (103), the feeding device upper cover (103) is provided with a feeding port, a feeding port vacuum valve (102) is arranged on the feeding port, a plurality of material separation grids (105) which are uniformly distributed along the circumferential direction are arranged in the charging barrel (104), the lower part of each material separation grid (105) is provided with a bottom circular plate (106), a bottom circular plate notch (109) is arranged on each bottom circular plate (106), a central shaft is arranged above each bottom circular plate (106) along the axial direction of the charging barrel (104), and the central shaft extends upwards from the feeding device upper cover (103) and is fixedly connected with a hand wheel (101); the inner sides of all the material separation grids (105) are fixedly connected with the central shaft, and the outer sides of all the material separation grids (105) are contacted with the inner wall of the charging barrel (104); the size of the bottom circular plate notch (109) is smaller than or equal to the size of a sector formed by the mutual clamping between two adjacent material separation grids (105).
3. The vacuum hot shell casting apparatus of claim 2, wherein: and a cylinder isolation vacuum valve (107) is arranged on the charging guide pipe (108).
4. The vacuum hot shell casting apparatus of claim 1, wherein: the guide pipe is used for communicating the smelting vacuum chamber (14) with the casting vacuum chamber (23), the diversion trench (201) is positioned at the bottom of the smelting vacuum chamber (14) and inclines towards the casting vacuum chamber (23), the tail end of the diversion trench (201) is positioned right above the guide pipe and is provided with a diversion outlet, a diversion funnel (202) is fixed in the guide pipe, the diversion outlet is positioned right above the diversion funnel (202), and smelted molten metal can flow into the casting vacuum chamber (23) through the diversion funnel (202).
5. The vacuum hot shell casting apparatus of claim 1, wherein: the metal component uniform stirring device (300) comprises a stirring rod connecting rod (301), a stirring rod connecting rod cooling water pipe (304) is arranged in the stirring rod connecting rod (301), a sealing part (302) is arranged in the middle of the stirring rod connecting rod (301), and the lower end of the stirring rod connecting rod (301) is connected with a graphite stirring rod (13).
6. The vacuum hot shell casting apparatus of claim 5, wherein: sealing portion (302) can swing soft sealing gum cover (303) including, the upper end of can swinging soft sealing gum cover (303) is equipped with JO sealing washer installation cylinder body (308), is equipped with JO sealing washer (305) that a plurality of from last inseparable range down in JO sealing washer installation cylinder body (308), is equipped with JO sealing washer interval support (307) between two adjacent JO sealing washers (305), the upper end of JO sealing washer installation cylinder body (308) is equipped with JO sealing washer gland (306), stirring rod connecting rod (301) pass JO sealing washer gland (306), JO sealing washer (305) in proper order and can swing soft sealing gum cover (303).
7. The vacuum hot shell casting apparatus of claim 1, wherein: a melting vacuum tank cover (11) is arranged at one end of the melting vacuum tank (1) far away from the casting vacuum tank (2); and the smelting vacuum tank (1) is provided with a casting vacuum tank upper cover (21).
8. The vacuum hot shell casting apparatus of claim 1, wherein: the casting vacuum tank (2) is arranged on the tank body moving trolley (3), and the tank body moving trolley (3) can move along the trolley track (4).
9. The method of operating a vacuum hot shell casting apparatus as claimed in any one of claims 1 to 8, wherein: when smelting, closing a flow guide vacuum valve on the vacuum stop flow guide device, and extracting vacuum for smelting; when the smelting is finished, opening the casting vacuum chamber, and putting the roasted thermal formwork on a casting disc of the casting vacuum chamber; closing the casting vacuum chamber, after vacuum pumping, opening a vacuum stop flow guide device, pouring molten metal into a flow guide groove, enabling the molten metal to flow into a hot mould shell through the vacuum stop flow guide device to finish casting, rotating a casting disc to enable a next mould shell to be aligned to the vacuum stop flow guide device, continuing casting, after casting is finished, closing a flow guide vacuum valve, relieving vacuum, opening the casting vacuum chamber, and taking out a product.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010120145.0A CN110947938A (en) | 2020-02-26 | 2020-02-26 | Vacuum hot shell casting device and working method |
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| CN202010120145.0A CN110947938A (en) | 2020-02-26 | 2020-02-26 | Vacuum hot shell casting device and working method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111872355A (en) * | 2020-09-01 | 2020-11-03 | 包头市金为达稀土材料有限公司 | Table bag for vacuum suction injection of liquid rare earth metal |
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| 马涛: "VRC-3200 型薄绝缘环氧树脂真空浇注设备及工艺研究", 《真空》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111872355A (en) * | 2020-09-01 | 2020-11-03 | 包头市金为达稀土材料有限公司 | Table bag for vacuum suction injection of liquid rare earth metal |
| CN111872355B (en) * | 2020-09-01 | 2024-05-10 | 包头市金为达稀土材料有限公司 | Vacuum suction injection liquid rare earth metal table bag |
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Application publication date: 20200403 |