CN112268150A - High-pressure flange and casting process thereof - Google Patents
High-pressure flange and casting process thereof Download PDFInfo
- Publication number
- CN112268150A CN112268150A CN202011041606.1A CN202011041606A CN112268150A CN 112268150 A CN112268150 A CN 112268150A CN 202011041606 A CN202011041606 A CN 202011041606A CN 112268150 A CN112268150 A CN 112268150A
- Authority
- CN
- China
- Prior art keywords
- flange
- cavity
- pressure
- ring flange
- fixed disk
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
- F16L23/024—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D13/00—Centrifugal casting; Casting by using centrifugal force
- B22D13/04—Centrifugal casting; Casting by using centrifugal force of shallow solid or hollow bodies, e.g. wheels or rings, in moulds rotating around their axis of symmetry
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D13/00—Centrifugal casting; Casting by using centrifugal force
- B22D13/08—Centrifugal casting; Casting by using centrifugal force in which a stationary mould is fed from a rotating mass of liquid metal
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
- F16L23/032—Flanged joints the flanges being connected by members tensioned axially characterised by the shape or composition of the flanges
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/16—Flanged joints characterised by the sealing means
- F16L23/18—Flanged joints characterised by the sealing means the sealing means being rings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Pressure Vessels And Lids Thereof (AREA)
Abstract
The invention discloses a high-pressure flange and a casting process thereof, wherein the high-pressure flange comprises a first flange plate and a second flange plate, the right side of the first flange plate is movably connected with the left side of the second flange plate, the left side of the first flange plate and the right side of the second flange plate are both communicated with a fixed disc, the other side of the fixed disc is communicated with a connecting pipe, a first cavity and a second cavity are respectively arranged in the first flange plate and the second flange plate, the top of the first cavity is communicated with the second cavity through a pipeline, the surface of the fixed disc is provided with a vent hole, and one end of the vent hole is respectively communicated with the first cavity and the second cavity. According to the invention, through arranging the fixed disc, the first cavity, the second cavity and the vent hole, high-temperature and high-pressure gas in the first flange disc and the second flange disc can be dispersed, the pressure resistance of the first flange disc and the second flange disc is improved, the high-pressure flange is not easy to damage, the scrappage and the production cost are reduced, and the use of people is facilitated.
Description
Technical Field
The invention relates to the technical field of flanges, in particular to a high-pressure flange and a casting process thereof.
Background
The flange is also called flange disc or flange, and the flange is a part for connecting the shaft and is used for connecting pipe ends; there are also flanges on the inlet and outlet of the equipment for the connection between two equipments, such as the flange of the speed reducer, the flange connection or the flange joint, which means the detachable connection of a group of combined sealing structure formed by the mutual connection of the flange, the gasket and the bolt, the pipeline flange means the flange for piping in the pipeline device, the inlet and outlet flange of the equipment used on the equipment, the flange has holes, the bolt tightly connects the two flanges, the flange is sealed by the gasket, the flange is divided into the threaded connection (screw thread connection) flange, the welding flange and the clamping flange, the flanges are used in pairs, the low pressure pipeline can use the screw connection flange, the welding flange with more than four kilograms of pressure, the sealing gasket is added between the two flanges, then the flanges are fastened by the bolt, the thickness of the flanges with different pressures are different, the bolts used by the flanges are also different, the water pump and the valve, when the, the local parts of the equipment are also made into corresponding flange shapes, which are also called as flange connection, all the connecting parts which are connected and sealed by bolts at the peripheries of two planes are generally called as flanges, such as the connection of a ventilating duct, the parts can be called as flange parts, but the connection is only the local parts of the equipment, such as the connection of the flange and a water pump, the water pump is not called as the flange parts easily, and the parts are smaller, such as valves and the like, and can be called as the flange parts.
In the prior art, the traditional flange has the defects of serious damage and incapability of resisting high pressure due to long-term use, the scrappage amount is extremely large after long-term use, and the production cost is increased, so that the technical personnel in the field provide a high-pressure flange and a casting process thereof to solve the problems in the background art.
Disclosure of Invention
The present invention is directed to a high-pressure flange and a casting process thereof, which solve the above problems of the prior art.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a high-pressure flange, includes first ring flange and second ring flange, the right side of first ring flange and the left side swing joint of second ring flange, the left side of first ring flange and the right side of second ring flange all communicate there is the fixed disk, the opposite side intercommunication of fixed disk has the connecting pipe, first cavity and second cavity have been seted up respectively to the inside of first ring flange and second ring flange equally divide, pipeline and second cavity intercommunication are passed through at the top of first cavity, the air vent has been seted up on the surface of fixed disk, the one end of air vent communicates with first cavity and second cavity respectively.
Preferably, the first flange plate and the second flange plate are both provided with grooves, and the grooves are movably connected with sealing rings.
Preferably, the inside swing joint of first ring flange has the connecting rod, the right-hand member of connecting rod runs through to the outside of second ring flange, the left end of connecting rod runs through to the outside of first ring flange, the surperficial threaded connection of connecting rod has the nut, one side of nut respectively with first ring flange and second ring flange swing joint.
Preferably, the inside swing joint of air vent has dustproof otter board, one side of dustproof otter board runs through to the outside swing joint of fixed disk has the turning block, the surface of turning block and the inner wall threaded connection of fixed disk.
Preferably, one side of the rotating block, which is far away from the dustproof screen plate, is fixedly connected with a rotating head, and the rotating head is in contact with the surface of the fixed disc.
A high-pressure flange casting process comprises the following steps:
step a: selecting steel, putting the selected raw material steel into a medium-frequency electric furnace for smelting, wherein the medium-frequency electric furnace enables the temperature of molten steel to reach 1600-;
step b: selecting a mold according to the size of the required high-pressure flange, preheating the selected mold to 800-900 ℃, and keeping the temperature constant;
step c: pouring the molten steel in the step a into the preheated mould in the step b through a centrifugal machine;
step d: naturally cooling the casting in the mold to 800-900 ℃, and keeping for 1-10 min;
step e: cooling the casting in the die to 25-35 ℃ by using water, demolding and taking out the casting to obtain a crude product of the high-pressure flange;
step f: quenching the crude high-pressure flange, putting the crude high-pressure flange into the furnace again at room temperature, heating to 500 ℃ at 300-;
step g: grooving the inner parts of the first flange plate and the second flange plate through a lathe to obtain a first cavity, a second cavity and a groove;
step h: welding the connecting pipe and the fixed disk together by a seamless welding technology, and then welding the fixed disk, the first flange plate and the second flange plate together to enable the vent hole to be communicated with the first cavity and the second cavity;
step i: put into the recess with the sealing washer, the connecting rod passes first ring flange and second ring flange, and the nut is twisted on to connecting rod surface both sides, accomplishes the installation of first ring flange and second ring flange, puts into the fixed disk dustproof otter board, rotates the rotating head, and the turning block gets into in the fixed disk, fixes dustproof otter board.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, through arranging the fixed disc, the first cavity, the second cavity and the vent hole, high-temperature and high-pressure gas in the first flange disc and the second flange disc can be dispersed, the pressure resistance of the first flange disc and the second flange disc is improved, the high-pressure flange is not easy to damage, the scrappage and the production cost are reduced, and the use of people is facilitated.
2. According to the invention, the connection part of the first flange plate and the second flange plate can be sealed by arranging the groove and the sealing ring, the connection of the first flange plate and the second flange plate is facilitated by arranging the connecting rod and the screw cap, the air vent can be prevented from dust by arranging the dust-proof screen plate and the rotating block, and the rotating block can be conveniently screwed into the fixed disc by arranging the rotating head.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a left side view of a first flange of the present invention construction;
FIG. 3 is a right side view of a first flange of the present invention construction;
fig. 4 is a perspective view of a second flange of the present invention.
In the figure: 1. a first flange plate; 2. a second flange plate; 3. fixing the disc; 4. a connecting pipe; 5. a first cavity; 6. a second cavity; 7. a vent hole; 8. a groove; 9. a seal ring; 10. a connecting rod; 11. a nut; 12. a dustproof screen plate; 13. rotating the block; 14. and rotating the head.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, a high pressure flange comprises a first flange plate 1 and a second flange plate 2, the right side of the first flange plate 1 is movably connected with the left side of the second flange plate 2, the left side of the first flange plate 1 and the right side of the second flange plate 2 are both communicated with a fixed disk 3, the other side of the fixed disk 3 is communicated with a connecting pipe 4, the first flange plate 1 and the second flange plate 2 are both provided with a first cavity 5 and a second cavity 6, the top of the first cavity 5 is communicated with the second cavity 6 through a pipeline, the surface of the fixed disk 3 is provided with a vent hole 7, one end of the vent hole 7 is respectively communicated with the first cavity 5 and the second cavity 6, the first flange plate 1 and the second flange plate 2 are both provided with a groove 8, the inner part of the groove 8 is movably connected with a sealing ring 9, the inner part of the first flange plate 1 is movably connected with a connecting rod 10, the right end of the connecting rod, the left end of a connecting rod 10 penetrates through the outer part of a first flange plate 1, a nut 11 is connected with the surface of the connecting rod 10 in a threaded manner, one side of the nut 11 is respectively movably connected with the first flange plate 1 and a second flange plate 2, a dustproof screen plate 12 is movably connected in the air vent 7, one side of the dustproof screen plate 12 penetrates through the outer part of a fixed plate 3 and is movably connected with a rotating block 13, the surface of the rotating block 13 is in threaded connection with the inner wall of the fixed plate 3, a rotating head 14 is fixedly connected with one side of the rotating block 13 far away from the dustproof screen plate 12, the rotating head 14 is in contact with the surface of the fixed plate 3, the joint of the first flange plate 1 and the second flange plate 2 can be sealed by arranging a groove 8 and a sealing ring 9, the connecting rod 10 and the nut 11 are convenient to connect the first flange plate 1 and the second flange plate 2, the air, through setting up rotating head 14, be convenient for twist turning block 13 in the fixed disk 3, through setting up fixed disk 3, first cavity 5, second cavity 6 and air vent 7, can disperse the high temperature high-pressure gas in first ring flange 1 and the second ring flange 2, improve the resistance to pressure of first ring flange 1 and second ring flange 2, make high-pressure flange not fragile, reduced scrap volume and manufacturing cost, be favorable to people's use.
Example 1: a high-pressure flange casting process comprises the following steps: step a: selecting steel, putting the selected raw material steel into a medium-frequency electric furnace for smelting, wherein the medium-frequency electric furnace enables the temperature of molten steel to reach 1600 ℃, and forging after heat preservation is carried out for 5 hours; step b: selecting a mould according to the size of the required high-pressure flange, and preheating the selected mould to 800 ℃ to keep the constant temperature; step c: pouring the molten steel in the step a into the preheated mould in the step b through a centrifugal machine; step d: naturally cooling the casting in the mold to 800 ℃, and keeping for 5 min; step e: cooling the casting in the die to 25 ℃ by using water, demolding and taking out the casting to obtain a crude product of the high-pressure flange; step f: quenching the high-pressure flange crude product, feeding the high-pressure flange crude product into a furnace again at room temperature, heating to 500 ℃, keeping the temperature for 30min, taking out the high-pressure flange crude product, and cooling to room temperature by water to obtain a first flange plate 1 and a second flange plate 2 with stable performance; step g: grooving the insides of the first flange plate 1 and the second flange plate 2 through a lathe to obtain a first cavity 5, a second cavity 6 and a groove 8; step h: welding the connecting pipe 4 and the fixed disk 3 together by a seamless welding technology, and then welding the fixed disk 3 and the first flange plate 1 and the second flange plate 2 together to enable the vent hole 7 to be communicated with the first cavity 5 and the second cavity 6; step i: put into recess 8 with sealing washer 9, connecting rod 10 passes first ring flange 1 and second ring flange 2, and nut 11 is twisted on to connecting rod 10 surperficial both sides, accomplishes the installation of first ring flange 1 and second ring flange 2, puts into fixed disk 3 with dustproof otter board 12, rotates rotating head 14, and turning block 13 gets into in the fixed disk 3, fixes dustproof otter board 12.
Example 2: a high-pressure flange casting process comprises the following steps: step a: selecting steel, putting the selected raw material steel into a medium-frequency electric furnace for smelting, keeping the temperature of molten steel by the medium-frequency electric furnace at 1700 ℃, and forging after heat preservation for 10 hours; step b: selecting a mould according to the size of the required high-pressure flange, and preheating the selected mould to 900 ℃ to keep the constant temperature; step c: pouring the molten steel in the step a into the preheated mould in the step b through a centrifugal machine; step d: naturally cooling the casting in the mold to 900 ℃, and keeping for 1-10 min; step e: cooling the casting in the die to 35 ℃ by using water, demolding and taking out the casting to obtain a crude product of the high-pressure flange; step f: quenching the high-pressure flange crude product, feeding the high-pressure flange crude product into a furnace again at room temperature, heating to 300 ℃, preserving heat for 10min, taking out the high-pressure flange crude product, and cooling to room temperature by water to obtain a first flange plate 1 and a second flange plate 2 with stable performance; step g: grooving the insides of the first flange plate 1 and the second flange plate 2 through a lathe to obtain a first cavity 5, a second cavity 6 and a groove 8; step h: welding the connecting pipe 4 and the fixed disk 3 together by a seamless welding technology, and then welding the fixed disk 3 and the first flange plate 1 and the second flange plate 2 together to enable the vent hole 7 to be communicated with the first cavity 5 and the second cavity 6; step i: put into recess 8 with sealing washer 9, connecting rod 10 passes first ring flange 1 and second ring flange 2, and nut 11 is twisted on to connecting rod 10 surperficial both sides, accomplishes the installation of first ring flange 1 and second ring flange 2, puts into fixed disk 3 with dustproof otter board 12, rotates rotating head 14, and turning block 13 gets into in the fixed disk 3, fixes dustproof otter board 12.
Example 3: a high-pressure flange casting process comprises the following steps: step a: selecting steel, putting the selected raw material steel into a medium-frequency electric furnace for smelting, enabling the temperature of molten steel to reach 1650 ℃ by the medium-frequency electric furnace, preserving heat for 8 hours, and then forging; step b: selecting a mould according to the size of the required high-pressure flange, and preheating the selected mould to 850 ℃ to keep the constant temperature; step c: pouring the molten steel in the step a into the preheated mould in the step b through a centrifugal machine; step d: naturally cooling the casting in the mold to 850 ℃, and keeping for 6 min; step e: cooling the casting in the die to 30 ℃ by using water, demolding and taking out the casting to obtain a crude product of the high-pressure flange; step f: quenching the high-pressure flange crude product, feeding the high-pressure flange crude product into a furnace again at room temperature, heating to 400 ℃, keeping the temperature for 20min, taking out the high-pressure flange crude product, and cooling to room temperature by water to obtain a first flange plate 1 and a second flange plate 2 with stable performance; step g: grooving the insides of the first flange plate 1 and the second flange plate 2 through a lathe to obtain a first cavity 5, a second cavity 6 and a groove 8; step h: welding the connecting pipe 4 and the fixed disk 3 together by a seamless welding technology, and then welding the fixed disk 3 and the first flange plate 1 and the second flange plate 2 together to enable the vent hole 7 to be communicated with the first cavity 5 and the second cavity 6; step i: put into recess 8 with sealing washer 9, connecting rod 10 passes first ring flange 1 and second ring flange 2, and nut 11 is twisted on to connecting rod 10 surperficial both sides, accomplishes the installation of first ring flange 1 and second ring flange 2, puts into fixed disk 3 with dustproof otter board 12, rotates rotating head 14, and turning block 13 gets into in the fixed disk 3, fixes dustproof otter board 12.
Example 4: a high-pressure flange casting process comprises the following steps: step a: selecting steel, putting the selected raw material steel into a medium-frequency electric furnace for smelting, wherein the medium-frequency electric furnace enables the temperature of molten steel to reach 1600 ℃, and forging after heat preservation is carried out for 7 hours; step b: selecting a mould according to the size of the required high-pressure flange, and preheating the selected mould to 900 ℃ to keep the constant temperature; step c: pouring the molten steel in the step a into the preheated mould in the step b through a centrifugal machine; step d: naturally cooling the casting in the mold to 800 ℃, and keeping the temperature for 1-10 min; step e: cooling the casting in the die to 27 ℃ by using water, demolding and taking out the casting to obtain a crude product of the high-pressure flange; step f: quenching the high-pressure flange crude product, feeding the high-pressure flange crude product into a furnace again at room temperature, heating to 350 ℃, keeping the temperature for 25min, taking out the high-pressure flange crude product, and cooling to room temperature by water to obtain a first flange plate 1 and a second flange plate 2 with stable performance; step g: grooving the insides of the first flange plate 1 and the second flange plate 2 through a lathe to obtain a first cavity 5, a second cavity 6 and a groove 8; step h: welding the connecting pipe 4 and the fixed disk 3 together by a seamless welding technology, and then welding the fixed disk 3 and the first flange plate 1 and the second flange plate 2 together to enable the vent hole 7 to be communicated with the first cavity 5 and the second cavity 6; step i: put into recess 8 with sealing washer 9, connecting rod 10 passes first ring flange 1 and second ring flange 2, and nut 11 is twisted on to connecting rod 10 surperficial both sides, accomplishes the installation of first ring flange 1 and second ring flange 2, puts into fixed disk 3 with dustproof otter board 12, rotates rotating head 14, and turning block 13 gets into in the fixed disk 3, fixes dustproof otter board 12.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A high-pressure flange comprises a first flange plate (1) and a second flange plate (2), and is characterized in that: the right side of first ring flange (1) and the left side swing joint of second ring flange (2), the left side of first ring flange (1) and the right side of second ring flange (2) all communicate and have fixed disk (3), the opposite side intercommunication of fixed disk (3) has connecting pipe (4), first cavity (5) and second cavity (6) have been seted up respectively to the inside of first ring flange (1) and second ring flange (2) equally divide, pipeline and second cavity (6) intercommunication are passed through to the top of first cavity (5), air vent (7) have been seted up on the surface of fixed disk (3), the one end of air vent (7) communicates with first cavity (5) and second cavity (6) respectively.
2. A high-pressure flange according to claim 1, wherein: the sealing ring is characterized in that a groove (8) is formed in the first flange plate (1) and the second flange plate (2), and a sealing ring (9) is movably connected in the groove (8).
3. A high-pressure flange according to claim 1, wherein: the inside swing joint of first ring flange (1) has connecting rod (10), the right-hand member of connecting rod (10) runs through to the outside of second ring flange (2), the left end of connecting rod (10) runs through to the outside of first ring flange (1), the surperficial threaded connection of connecting rod (10) has nut (11), one side of nut (11) respectively with first ring flange (1) and second ring flange (2) swing joint.
4. A high-pressure flange according to claim 1, wherein: the inside swing joint of air vent (7) has dustproof otter board (12), the outside swing joint that one side of dustproof otter board (12) runs through to fixed disk (3) has turning block (13), the surface of turning block (13) and the inner wall threaded connection of fixed disk (3).
5. A high-pressure flange according to claim 4, wherein: one side of the rotating block (13) far away from the dustproof screen plate (12) is fixedly connected with a rotating head (14), and the rotating head (14) is in surface contact with the fixed disc (3).
6. A high-pressure flange casting process is characterized in that: the method comprises the following steps:
step a: selecting steel, putting the selected raw material steel into a medium-frequency electric furnace for smelting, wherein the medium-frequency electric furnace enables the temperature of molten steel to reach 1600-;
step b: selecting a mold according to the size of the required high-pressure flange, preheating the selected mold to 800-900 ℃, and keeping the temperature constant;
step c: pouring the molten steel in the step a into the preheated mould in the step b through a centrifugal machine;
step d: naturally cooling the casting in the mold to 800-900 ℃, and keeping for 1-10 min;
step e: cooling the casting in the die to 25-35 ℃ by using water, demolding and taking out the casting to obtain a crude product of the high-pressure flange;
step f: quenching the crude high-pressure flange, putting the crude high-pressure flange into the furnace again at room temperature, heating to 500 ℃ at 300-;
step g: slotting the interior of the first flange plate (1) and the second flange plate (2) by a lathe to obtain a first cavity (5), a second cavity (6) and a groove (8);
step h: the connecting pipe (4) and the fixed disk (3) are welded together by a seamless welding technology, and then the fixed disk (3) is welded together with the first flange plate (1) and the second flange plate (2), so that the vent hole (7) is communicated with the first cavity (5) and the second cavity (6);
step i: put into recess (8) with sealing washer (9), first ring flange (1) and second ring flange (2) are passed in connecting rod (10), and nut (11) are twisted on connecting rod (10) surface both sides, accomplish the installation of first ring flange (1) and second ring flange (2), put into fixed disk (3) dustproof otter board (12), rotate rotating head (14), in turning block (13) get into fixed disk (3), fix dustproof otter board (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011041606.1A CN112268150A (en) | 2020-09-28 | 2020-09-28 | High-pressure flange and casting process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011041606.1A CN112268150A (en) | 2020-09-28 | 2020-09-28 | High-pressure flange and casting process thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112268150A true CN112268150A (en) | 2021-01-26 |
Family
ID=74348626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011041606.1A Pending CN112268150A (en) | 2020-09-28 | 2020-09-28 | High-pressure flange and casting process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112268150A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113198999A (en) * | 2021-05-07 | 2021-08-03 | 潘孟柯 | Stainless steel flange casting forming process |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1259196A (en) * | 1997-06-25 | 2000-07-05 | 西门子公司 | Device for connecting pipe sections |
| KR20120137046A (en) * | 2011-06-10 | 2012-12-20 | 유옥수 | A pipe |
| CN207298158U (en) * | 2017-09-19 | 2018-05-01 | 成都贝根管道科技有限公司 | The ring flange being welded to connect for plastic lining composite steel pipe |
| CN108580830A (en) * | 2018-05-10 | 2018-09-28 | 巢湖市南特精密制造有限公司 | A kind of method of processing flange |
| CN208348727U (en) * | 2018-06-11 | 2019-01-08 | 兴化市飞翔机械配件厂 | A kind of flange that heat resistance is good |
| CN209399025U (en) * | 2018-12-25 | 2019-09-17 | 西藏高争建材股份有限公司 | A kind of manufacture of cement ventilating duct device to prolong the service life |
-
2020
- 2020-09-28 CN CN202011041606.1A patent/CN112268150A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1259196A (en) * | 1997-06-25 | 2000-07-05 | 西门子公司 | Device for connecting pipe sections |
| KR20120137046A (en) * | 2011-06-10 | 2012-12-20 | 유옥수 | A pipe |
| CN207298158U (en) * | 2017-09-19 | 2018-05-01 | 成都贝根管道科技有限公司 | The ring flange being welded to connect for plastic lining composite steel pipe |
| CN108580830A (en) * | 2018-05-10 | 2018-09-28 | 巢湖市南特精密制造有限公司 | A kind of method of processing flange |
| CN208348727U (en) * | 2018-06-11 | 2019-01-08 | 兴化市飞翔机械配件厂 | A kind of flange that heat resistance is good |
| CN209399025U (en) * | 2018-12-25 | 2019-09-17 | 西藏高争建材股份有限公司 | A kind of manufacture of cement ventilating duct device to prolong the service life |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113198999A (en) * | 2021-05-07 | 2021-08-03 | 潘孟柯 | Stainless steel flange casting forming process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104807351B (en) | Pure counterflow shell-and-tube heat exchanger and manufacturing method thereof | |
| CN112268150A (en) | High-pressure flange and casting process thereof | |
| CN105642728B (en) | A kind of elastomeric material liquid is expanded into the device and method of shape composite bimetal pipe | |
| CN210920525U (en) | High-temperature-resistant bellows expansion joint | |
| CN110142395B (en) | Aluminum alloy cooling plate casting process | |
| CN209407366U (en) | A kind of dissection type water jacket for the high pulling rate crystallizer of continuous small-billet casting | |
| CN207026396U (en) | Fluid die forging machine water cooling cushion plate | |
| CN1046107A (en) | Universal valve, tube-fitting expansion pressure forming process | |
| CN212682394U (en) | Leak protection water super cold ware structure of installing fast | |
| CN201871682U (en) | Heat insulation system of hot core box die | |
| CN212860425U (en) | Tetrafluoro pipe flanging hot-pressing device | |
| CN207272121U (en) | A kind of wide face copper coin plug-in unit monomer bulge test device of slab caster mould | |
| CN204338113U (en) | The fast detachment water circulation cooling structure of dry granulating machine roll | |
| CN210754992U (en) | Flange casting mould | |
| CN209469905U (en) | A kind of steady type union flange | |
| CN208696228U (en) | A kind of sectional die of the inoculant block of energy fast demoulding | |
| CN208558049U (en) | A kind of air spring capsule vulcanization plant | |
| CN202893867U (en) | Extruding drum of lithium metal extruder | |
| CN218452556U (en) | Port forming device for automobile pipe fitting production | |
| CN214866214U (en) | Bridge cut-off aluminum alloy window cover plate profile extrusion die | |
| CN206882759U (en) | Rotary type multi-station air injection machine | |
| CN217236568U (en) | Plate heat exchanger | |
| CN219345785U (en) | Internal heat-insulation common-plate flange connection air conditioner ventilating duct | |
| CN2278830Y (en) | Quick-mounting connecting piece for pipe | |
| CN204828526U (en) | Pretension type ball nut with cooling structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210126 |