CN215786678U - Device for forging liquid metal by using ultrahigh-pressure nitrogen - Google Patents
Device for forging liquid metal by using ultrahigh-pressure nitrogen Download PDFInfo
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- CN215786678U CN215786678U CN202122095407.5U CN202122095407U CN215786678U CN 215786678 U CN215786678 U CN 215786678U CN 202122095407 U CN202122095407 U CN 202122095407U CN 215786678 U CN215786678 U CN 215786678U
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Abstract
The utility model relates to a production device of mechanical parts with brand new high requirements, in particular to a device for forging liquid metal by using ultrahigh pressure nitrogen, which adopts a means of forging metal liquid by using ultrahigh pressure air to realize high density of the mechanical parts and reduce crystal grains, thereby greatly improving the tensile strength, the elongation percentage, the corrosion resistance, the scouring resistance, the high temperature resistance and the like of metal products, and comprises a liquid nitrogen tank (1), a one-way valve I (2), a plunger pump (3), an oil cylinder (4), a one-way valve II (5) and a liquid metal pressurizing device (6), wherein the liquid nitrogen tank (1), the one-way valve I (2), the plunger pump (3), the one-way valve II (5) and the liquid metal pressurizing device (6) are sequentially communicated, and the plunger pump (3) is driven and pressurized by the oil cylinder (4); the liquid metal pressurizing device (6) comprises a cylinder body (7), a cock (8), a sealing assembly (9) and a liquid nitrogen gasification generating device (10).
Description
Technical Field
The utility model relates to a brand new high-requirement production device for mechanical parts, in particular to a device for forging liquid metal by ultrahigh-pressure nitrogen.
Background
With the development of science and technology, the requirements on metal parts are greatly improved, and especially under severe working environments such as high temperature, ultrahigh pressure, corrosion resistance and the like, the requirements on products are obviously and greatly improved, but the mechanical parts produced by the existing production method and production process cannot meet the requirements on mechanical operation.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems, the utility model provides a device for forging liquid metal by using ultrahigh pressure nitrogen, which adopts a means of forging metal liquid by using ultrahigh pressure air to realize high density of mechanical parts and reduce crystal grains, thereby greatly improving the tensile strength, elongation, corrosion resistance, scouring resistance, high temperature resistance and the like of metal products.
In order to solve the technical problems, the technical scheme adopted by the utility model is as follows: a device for forging liquid metal by high-pressure nitrogen comprises a liquid nitrogen tank, a one-way valve I, a plunger pump, an oil cylinder, a one-way valve II and a liquid metal pressurizing device, wherein the liquid nitrogen tank, the one-way valve I, the plunger pump, the one-way valve II and the liquid metal pressurizing device are sequentially communicated, and the plunger pump is driven and pressurized by the oil cylinder; the liquid metal pressurizing device comprises a cylinder, a cock, a sealing component and a liquid nitrogen gasification generating device, wherein the cock is in rotating fit with the cylinder, the sealing component is arranged on the cock and abuts against the inner wall of the cylinder, an air passage is formed in the side wall of the cylinder, the liquid nitrogen gasification generating device is made of metal and can be detachably connected with the inner wall of the cylinder, and a gasification cavity is formed in the liquid nitrogen gasification generating device; the side surface of the liquid nitrogen gasification generating device is provided with an air inlet; the air inlet is communicated with the second one-way valve through an air passage, the top of the liquid nitrogen gasification generating device is provided with a pressurization port, and the air inlet and the pressurization port are both communicated with the gasification cavity.
Preferably, the inner wall of the cylinder body is provided with a boss, the cock and the sealing assembly are arranged above the boss, the cock is abutted against the inner wall of the cylinder body through the sealing assembly, and the bottom of the cock and the lower part of the boss are 0.03-0.05 mm.
Preferably, a gap exists between the air inlet and the air passage.
Preferably, the outer wall of the liquid nitrogen gasification generating device is provided with a rectangular bulge, the inner wall of the cylinder body is provided with a clamping groove with a rectangular notch, and the liquid nitrogen gasification generating device is detachably connected with the clamping groove through the rectangular bulge.
Preferably, the pressurizing ports are arranged in a ring shape.
The device for forging liquid metal by high-pressure nitrogen has the following advantages:
firstly, the utility model can realize that the metal is forged under the condition of liquid metal.
Secondly, the ultra-high pressure is realized by liquid nitrogen gasification, and the liquid metal is molded and extruded by a film shell in the lost wax casting technology in precision manufacturing, so that the crystal grains are effectively reduced, and the crystal grain density is improved.
And thirdly, the tensile strength, elongation, corrosion resistance, scouring resistance, high temperature resistance and other properties of the metal can be effectively improved.
Drawings
FIG. 1 is a schematic structural view of an apparatus for high-pressure nitrogen forging of liquid metal according to the present invention;
FIG. 2 is a first schematic view of the liquid metal pressurizing apparatus of the present invention;
FIG. 3 is a second schematic view of the liquid metal pressurizing apparatus of the present invention;
FIG. 4 is a top plan view of the liquid metal pressurizing assembly of the present invention;
fig. 5 is a schematic structural view of a liquid nitrogen gasification generator according to the present invention.
Description of the drawings: 1. a liquid nitrogen tank; 2. a one-way valve I; 3. a plunger pump; 4. an oil cylinder; 5. a second one-way valve; 6. a liquid metal pressurizing device; 7. a barrel; 71. an airway; 72. a boss; 73. A card slot; 8. a cock; 9. a seal assembly; 10. a liquid nitrogen gasification generating device; 101. a gasification chamber; 102. an air inlet; 103. a pressurizing port; 104. and (4) protruding.
Detailed Description
The utility model is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1 to 5, the device for forging liquid metal by using high-pressure nitrogen comprises a liquid nitrogen tank 1, a one-way valve I2, a plunger pump 3, an oil cylinder 4, a one-way valve II 5 and a liquid metal pressurizing device 6, wherein the liquid nitrogen tank 1, the one-way valve I2, the plunger pump 3, the one-way valve II 5 and the liquid metal pressurizing device 6 are sequentially communicated, and the plunger pump 3 is driven and pressurized by the oil cylinder 4; the liquid metal pressurizing device 6 comprises a cylinder body 7, a cock 8, a sealing component 9 and a liquid nitrogen gasification generating device 10, wherein the cock 8 is in running fit with the cylinder body 7, the sealing component 9 is arranged on the cock 8, the sealing component 9 is abutted against the inner wall of the cylinder body 7, an air passage 71 is arranged on the side wall of the cylinder body 7, the liquid nitrogen gasification generating device 10 is made of metal and can be detachably connected with the inner wall of the cylinder body 7, and a gasification cavity 101 is arranged in the liquid nitrogen gasification generating device 10; the side surface of the liquid nitrogen gasification generating device 10 is provided with an air inlet 102; the air inlet 102 is communicated with the second check valve 5 through an air passage 71, the top of the liquid nitrogen gasification generating device 10 is provided with a pressurizing opening 103, and the air inlet 102 and the pressurizing opening 103 are both communicated with the gasification cavity 101.
The inner wall of the barrel body 7 is provided with a boss 72, the cock 8 and the sealing assembly 9 are arranged above the boss 72, the cock 8 abuts against the inner wall of the barrel body 7 through the sealing assembly 9, and the bottom of the cock 8 and the lower portion of the boss 72 are 0.03-0.05 mm.
A gap exists between the air inlet 102 and the air channel 71; the outer wall of the liquid nitrogen gasification generating device 10 is provided with a rectangular protrusion 104, the inner wall of the cylinder 7 is provided with a clamping groove 73 with a rectangular notch, and the liquid nitrogen gasification generating device 10 is detachably connected with the clamping groove 73 through the rectangular protrusion 104.
Opening a cock 8 of the liquid metal pressurizing device 6, taking the liquid nitrogen gasification generating device 10 out of the cylinder 7, and heating to over 1200 ℃; producing a film shell of metal to be formed by a lost wax casting mode, heating the metal to be liquid, pouring the metal into the film shell, and putting the metal, the film shell and the high-temperature liquid metal into the cylinder 7; the heated liquid nitrogen gasification generating device 10 is arranged in the cylinder body 7, the cock 8 is screwed into the cylinder body 7, the sealing component 9 is kept against the inner wall of the cylinder body 7, and the sealing effect of the sealing component 9 and the inner wall of the cylinder body 7 is kept; opening the liquid nitrogen tank 1, closing the check valve II 5, opening the check valve I2, and enabling the liquid nitrogen to flow through the check valve I2 and then enter the plunger pump 3; closing the one-way valve I2, closing the one-way valve II 5, pressurizing the plunger pump 3 through the oil cylinder 4, opening the one-way valve II 5 after the pressurization is finished, and keeping the one-way valve I2 closed; liquid nitrogen passes through the second check valve 5 and the air channel 71 and then is injected to the air inlet 102 of the liquid nitrogen gasification generating device 10, and the liquid nitrogen is instantaneously gasified in the gasification cavity 101 in the liquid nitrogen gasification generating device 10; the gasified nitrogen keeps a vertical upward injection state through a pressurizing opening 103 and pressurizes the inside of the cylinder 7, so that the pressure in the cylinder 7 is instantly increased to 300 Mpa; the gas is heated by the external heat of the liquid nitrogen gasification generating device 10, and the high-temperature liquid metal in the membrane shell is extruded under high temperature and high pressure and is subjected to heat preservation; opening the cock 8 after the liquid metal is formed in the membrane shell and gradually cooled, and taking out the metal piece; after the liquid nitrogen passes through the second check valve 5 and the air channel 71, a part of the liquid nitrogen can be in contact with the shell of the liquid nitrogen gasification generating device 10 to be gasified.
The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (5)
1. The utility model provides a device of liquid metal is forged to high pressure nitrogen gas which characterized in that: the device comprises a liquid nitrogen tank (1), a one-way valve I (2), a plunger pump (3), an oil cylinder (4), a one-way valve II (5) and a liquid metal pressurizing device (6), wherein the liquid nitrogen tank (1), the one-way valve I (2), the plunger pump (3), the one-way valve II (5) and the liquid metal pressurizing device (6) are sequentially communicated, and the plunger pump (3) is driven and pressurized by the oil cylinder (4); the liquid metal pressurizing device (6) comprises a cylinder body (7), a cock (8), a sealing assembly (9) and a liquid nitrogen gasification generating device (10), wherein the cock (8) is in running fit with the cylinder body (7), the sealing assembly (9) is arranged on the cock (8), the sealing assembly (9) is abutted against the inner wall of the cylinder body (7), an air passage (71) is arranged on the side wall of the cylinder body (7), the liquid nitrogen gasification generating device (10) is made of metal and can be detachably connected with the inner wall of the cylinder body (7), and a gasification cavity (101) is arranged in the liquid nitrogen gasification generating device (10); the side surface of the liquid nitrogen gasification generating device (10) is provided with an air inlet (102); the air inlet (102) is communicated with the second check valve (5) through an air passage (71), the top of the liquid nitrogen gasification generating device (10) is provided with a pressurization port (103), and the air inlet (102) and the pressurization port (103) are both communicated with the gasification cavity (101).
2. The apparatus for high pressure nitrogen forging of liquid metal as claimed in claim 1, wherein: the inner wall of the barrel body (7) is provided with a boss (72), the plug cock (8) and the sealing assembly (9) are arranged above the boss (72), the plug cock (8) is abutted to the inner wall of the barrel body (7) through the sealing assembly (9), and the bottom of the plug cock (8) and the lower portion of the boss (72) are 0.03-0.05 mm.
3. The apparatus for high pressure nitrogen forging of liquid metal as claimed in claim 1, wherein: a gap exists between the air inlet (102) and the air channel (71).
4. The apparatus for high pressure nitrogen forging of liquid metal as claimed in claim 1, wherein: the outer wall of the liquid nitrogen gasification generating device (10) is provided with a rectangular protrusion (104), the inner wall of the cylinder body (7) is provided with a clamping groove (73) with a rectangular notch, and the liquid nitrogen gasification generating device (10) is detachably connected with the clamping groove (73) through the rectangular protrusion (104).
5. The apparatus for high pressure nitrogen forging of liquid metal as claimed in claim 1, wherein: the pressurizing openings (103) are arranged in a ring shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122095407.5U CN215786678U (en) | 2021-09-01 | 2021-09-01 | Device for forging liquid metal by using ultrahigh-pressure nitrogen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122095407.5U CN215786678U (en) | 2021-09-01 | 2021-09-01 | Device for forging liquid metal by using ultrahigh-pressure nitrogen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215786678U true CN215786678U (en) | 2022-02-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122095407.5U Active CN215786678U (en) | 2021-09-01 | 2021-09-01 | Device for forging liquid metal by using ultrahigh-pressure nitrogen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215786678U (en) |
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2021
- 2021-09-01 CN CN202122095407.5U patent/CN215786678U/en active Active
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