CN109628783B - Method for manufacturing corrosion-resistant cast nickel-based high-temperature alloy - Google Patents
Method for manufacturing corrosion-resistant cast nickel-based high-temperature alloy Download PDFInfo
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/023—Alloys based on nickel
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/03—Making non-ferrous alloys by melting using master alloys
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C19/00—Alloys based on nickel or cobalt
- C22C19/03—Alloys based on nickel or cobalt based on nickel
- C22C19/05—Alloys based on nickel or cobalt based on nickel with chromium
- C22C19/058—Alloys based on nickel or cobalt based on nickel with chromium without Mo and W
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/002—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working by rapid cooling or quenching; cooling agents used therefor
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/10—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of nickel or cobalt or alloys based thereon
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Abstract
The invention discloses a method for manufacturing a corrosion-resistant cast nickel-based high-temperature alloy, which comprises the manufacturing steps of raw material melting, alloy adding, nickel-based high-temperature alloy ingot preparation, hot forging deformation and quenching cooling. In the manufacturing process of the nickel-based alloy, the raw materials are melted according to the proportion, a certain amount of Ni-Fe alloy is added into the alloy raw materials in the molten state, the Ni-Fe alloy and the alloy raw materials in the molten state are fully mixed through stirring equipment, the corrosion resistance of the nickel-based alloy is improved, and then the high-temperature resistance of the nickel-based alloy is improved through quenching and cooling; stirring the melting alloy through the mode of leading-in gas and stirring, stirring effect is better, and bronchus perforation and the transition fit of exhaling pipe can scrape the adnexed melting alloy of exhaling outer wall at the exhaling pipe rebound in-process simultaneously to guarantee that the exhaling outer wall is clean and tidy.
Description
Technical Field
The invention relates to the technical field of nickel-based alloy manufacturing, in particular to a manufacturing method of corrosion-resistant cast nickel-based superalloy.
Background
The nickel-based high-temperature alloy is a high-temperature alloy which takes nickel as a matrix and has high strength and good oxidation resistance and fuel gas corrosion resistance in the temperature range of 650-1000 ℃. The main alloy elements of the corrosion-resistant alloy are iron, chromium and molybdenum. Has good comprehensive performance and can resist various acid corrosion and stress corrosion. The nickel-based corrosion-resistant alloy mostly has an austenitic structure. In the solution and aging state, intermetallic phases and metal carbonitrides also exist on the austenitic matrix and grain boundaries of the alloy.
The existing nickel-based alloy has poor tolerance to high temperature and corrosion in the using process, and meanwhile, in the preparation process of the nickel-based alloy, the existing stirring equipment has poor stirring effect on the nickel-based alloy, so that the quality of the nickel-based alloy product is influenced.
Disclosure of Invention
In order to overcome the technical problems, the invention aims to provide a method for manufacturing a corrosion-resistant cast nickel-based superalloy, which comprises the steps of melting raw materials according to a ratio in the manufacturing process of the nickel-based alloy, adding a certain amount of Ni-Fe alloy into the molten alloy raw materials, fully mixing the Ni-Fe alloy and the molten alloy raw materials through stirring equipment to improve the corrosion resistance of the nickel-based alloy, and then quenching and cooling to improve the high-temperature resistance of the nickel-based alloy; stirring the melting alloy through the mode of leading-in gas and stirring, stirring effect is better, and bronchus perforation and the transition fit of exhaling pipe can scrape the adnexed melting alloy of exhaling outer wall at the exhaling pipe rebound in-process simultaneously to guarantee that the exhaling outer wall is clean and tidy.
The purpose of the invention can be realized by the following technical scheme:
the manufacturing method of the corrosion-resistant cast nickel-based superalloy comprises the manufacturing steps of raw material melting, alloy adding, nickel-based superalloy ingot preparation, hot forging deformation and quenching cooling, and specifically comprises the following steps:
(1) melting raw materials: preparing raw materials according to the component requirements of the corrosion-resistant cast nickel-based high-temperature alloy, placing the raw materials in a vacuum induction furnace, heating at the heating speed of 25-30 ℃/min, starting an argon protection device when the temperature is increased to 480 ℃, then continuously heating to 1540-1585 ℃ under the condition that the flow of argon is 30-45 ml/s, and keeping the temperature for 20 min;
(2) alloy addition: adding a certain amount of Ni-Fe alloy into the molten corrosion-resistant cast nickel-based superalloy, and stirring the mixed corrosion-resistant cast nickel-based superalloy solution for 10min by using stirring equipment;
(3) preparing a nickel-based high-temperature alloy ingot: reducing the temperature of the melt to 1450-1500 ℃, keeping the temperature constant, standing for 5-10 minutes, and pouring the melt into a preheated metal mold to prepare a nickel-based high-temperature alloy ingot;
(4) hot forging deformation: conveying the prepared nickel-based high-temperature alloy ingot to a hot forging die, heating to 1200-1250 ℃ through a resistance wire heating furnace, and carrying out hot forging deformation under the condition that the finish forging temperature is 990-1010 ℃ to obtain a deformed corrosion-resistant cast nickel-based high-temperature alloy blank;
(5) quenching and cooling: and immersing the deformed corrosion-resistant cast nickel-based high-temperature alloy blank into a quenching medium, and cooling to room temperature to obtain the corrosion-resistant cast nickel-based high-temperature alloy.
Further, the method comprises the following steps: step one, the corrosion-resistant cast nickel-based superalloy consists of the following elements in percentage by mass: cr: 23.5-26.0%, Co 6.0-6.80%, Ti: 1.20-1.40%, Al: 0.25-0.50%, C: 0.03-0.08 percent of Ni, less than or equal to 0.010 percent of B, less than or equal to 0.010 percent of Ce, less than or equal to 0.35 percent of Mn, less than or equal to 0.65 percent of Si, less than or equal to 0.015 percent of P, less than or equal to 0.007 percent of S, and the balance of Ni and inevitable impurities.
Further, the method comprises the following steps: in the Ni-Fe alloy in the second step, the adding amount of iron accounts for 58-61% of the mass of the Ni-Fe alloy, the balance is nickel, and the iron accounts for 4.0-4.5% of the total mass of the corrosion-resistant cast nickel-based high-temperature alloy.
Further, the method comprises the following steps: and thirdly, adopting a multi-time accumulated deformation mode for the deformation mode of the hot forging deformation to reach 30% -40% of total deformation, wherein the single deformation is 6% -7%, and performing multi-direction alternate forging deformation, namely after the corrosion-resistant cast nickel-based high-temperature alloy mixed with the Ni-Fe alloy is deformed by 6% -7% in one direction, turning over the material to deform again in the other direction, and so on, alternately deforming 6 surfaces.
Further, the method comprises the following steps: the stirring equipment comprises two T-shaped support frames and a cross frame welded between the two T-shaped support frames, wherein first stepping motors are respectively fixed at the two sides of the top surface of the cross frame corresponding to the joints of the T-shaped support frames, the two first stepping motors are respectively connected with lead screws which are respectively positioned in the T-shaped support frames and movably connected through bearings in a transmission manner through motor shafts, an isolation plate is connected between the two lead screws in a sliding manner, the isolation plate comprises an outer ring frame and a turntable which is rotatably connected inside the outer ring frame, the upper surface of the turntable is uniformly provided with a branch pipe perforation, the side wall of the outer ring frame is welded with a pair of lead screw nut blocks which are rotatably connected with the lead screws, the bottoms of one sides of the two T-shaped support frames are welded with directional wheels, and the bottoms of the other sides of the two T;
the bottom of the cross frame is symmetrically provided with a pair of MYT3-23 hydraulic pushers relative to the central plane of the cross frame, the end parts of the telescopic rods of the pair of MYT3-23 hydraulic pushers are connected with a fixing plate in a transmission way, the inside of the fixed plate is movably connected with an air blowing frame through a bearing, the air blowing frame comprises a main air inlet pipe, an air distribution disc and an air outlet pipe, the air inlet at the upper end of the air distribution disc is communicated with a main air inlet pipe which is movably connected with the bearing in the fixed plate and extends to the upper part of the cross frame in a penetrating way, the air inlet of the main air inlet pipe is connected with an air tap, the lower end of the air distribution disc corresponding to the position of the bronchial perforation is communicated with an exhaust pipe which is connected with the bronchial perforation in a sliding way through an air outlet, the upper portion of fixed plate is fixed with the second step motor, the motor shaft outer wall joint of second step motor has the driving gear, the driving gear meshes the transmission with the driven gear of joint in the outside of main intake pipe.
Further, the method comprises the following steps: the axis of the branch air pipe is vertical to the upper end face of the isolation plate, and the outer diameter of the branch air pipe is in transition fit with the inner diameter of the branch air pipe perforation.
Further, the method comprises the following steps: the horizontal section of the vertical part of the T-shaped support frame is U-shaped.
Further, the method comprises the following steps: the rotation angle of the air blowing frame is 0-90 degrees.
The invention has the beneficial effects that:
1. during the manufacturing process of the nickel-based alloy, firstly, raw materials are melted according to the proportion, then, a certain amount of Ni-Fe alloy is added into the alloy raw materials in the molten state, and the Ni-Fe alloy is fully mixed with the alloy raw materials in the molten state through stirring equipment, the mixing mode can keep the austenite matrix and the grain boundary of the alloy and also contain the carbonitride of intermetallic phases and metals, the corrosion resistance of the nickel-based alloy is improved, and then the high temperature resistance of the nickel-based alloy is improved through quenching and cooling;
2. the stirring device is movably connected with a lead screw in the pair of T-shaped supporting frames through a bearing, then the lead screw is driven by a first stepping motor to drive a separation plate to move up and down, the upper end surface of the separation plate is uniformly provided with a bronchus perforation, the bottom of a cross frame of the stirring device is connected with a fixed plate through a pair of MYT3-23 hydraulic pushers in a transmission way, the inside of the fixed plate is movably connected with an air blowing frame through a bearing, the upper part of the air blowing frame is provided with a main air inlet pipe which penetrates through and extends to the upper part of the cross frame, the lower part of the air blowing frame is communicated with a plurality of exhaust pipes which are in sliding connection with the bronchus perforation, and the air blowing frame is driven to rotate through a second stepping motor, the structure can stir molten alloy through a gas introduction and stirring mode, the stirring effect is better, meanwhile, the bronchus perforation, the molten alloy attached to the outer wall of the outgoing air pipe is scraped, so that the outer wall of the outgoing air pipe is ensured to be clean.
Drawings
The invention will be further described with reference to the accompanying drawings.
FIG. 1 is a front view of a stirring device according to the invention;
FIG. 2 is a side view of the stirring apparatus of the present invention;
FIG. 3 is a schematic view of the construction of the separator of the present invention;
FIG. 4 is a schematic view of the structure of the air blowing frame of the present invention.
In the figure: 1. a lead screw; 2. an air blowing frame; 21. a main air inlet pipe; 22. a gas distribution plate; 23. a gas pipe is extended; 3. a T-shaped support frame; 4. a first stepper motor; 5. a cross frame; 6. a second stepping motor; 7. an air tap; 8. a driven gear; 9. MYT3-23 hydraulic pusher; 10. a fixing plate; 11. a separator plate; 111. a lead screw nut block; 112. perforating a bronchus; 113. a turntable; 114. an outer ring frame; 12. a driving gear; 13. a directional wheel; 14. universal auto-lock wheel.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to 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 method for manufacturing a corrosion-resistant cast nickel-based superalloy comprises the steps of raw material melting, alloy adding, nickel-based superalloy ingot preparation, hot forging deformation, quenching and cooling, and comprises the following specific steps:
(1) melting raw materials: preparing raw materials according to the component requirements of the corrosion-resistant cast nickel-based high-temperature alloy, placing the raw materials in a vacuum induction furnace, heating at the heating speed of 25-30 ℃/min, starting an argon protection device when the temperature is increased to 480 ℃, then continuously heating to 1540-1585 ℃ under the condition that the flow of argon is 30-45 ml/s, and keeping the temperature for 20 min;
(2) alloy addition: adding a certain amount of Ni-Fe alloy into the molten corrosion-resistant cast nickel-based superalloy, and stirring the mixed corrosion-resistant cast nickel-based superalloy solution for 10min by using stirring equipment;
(3) preparing a nickel-based high-temperature alloy ingot: reducing the temperature of the melt to 1450-1500 ℃, keeping the temperature constant, standing for 5-10 minutes, and pouring the melt into a preheated metal mold to prepare a nickel-based high-temperature alloy ingot;
(4) hot forging deformation: conveying the prepared nickel-based high-temperature alloy ingot to a hot forging die, heating to 1200-1250 ℃ through a resistance wire heating furnace, and carrying out hot forging deformation under the condition that the finish forging temperature is 990-1010 ℃ to obtain a deformed corrosion-resistant cast nickel-based high-temperature alloy blank;
(5) quenching and cooling: and immersing the deformed corrosion-resistant cast nickel-based high-temperature alloy blank into a quenching medium, and cooling to room temperature to obtain the corrosion-resistant cast nickel-based high-temperature alloy.
Step one, the corrosion-resistant cast nickel-based superalloy consists of the following elements in percentage by mass: cr: 23.5-26.0%, Co 6.0-6.80%, Ti: 1.20-1.40%, Al: 0.25-0.50%, C: 0.03-0.08 percent of Ni-Fe alloy, less than or equal to 0.010 percent of B, less than or equal to 0.010 percent of Ce, less than or equal to 0.35 percent of Mn, less than or equal to 0.65 percent of Si, less than or equal to 0.015 percent of P, less than or equal to 0.007 percent of S, and the balance of Ni and inevitable impurities, wherein the adding amount of iron accounts for 58-61 percent of the mass of the Ni-Fe alloy in the second step, the balance of nickel, iron accounts for 4.0-4.5 percent of the total mass of the corrosion-resistant cast nickel-based high-temperature alloy, the temperature of a hot forging die in the third step is 250-300 ℃, the deformation mode of hot forging deformation in the third step adopts a multi-time accumulated deformation mode to reach 30-40 percent of total deformation, wherein the single deformation is 6-7 percent, the deformation is realized by multi-direction alternate forging, namely, after the corrosion-resistant cast nickel-based high-temperature alloy mixed with the Ni-Fe alloy is deformed by 6 to 7 percent in one direction, the turning material is deformed again in the other direction, and the like, so that the 6 surfaces are alternately deformed alternately.
The stirring equipment in the second step comprises two T-shaped support frames 3 and a cross frame 5 welded between the two T-shaped support frames 3, wherein first stepping motors 4 are respectively fixed at the two sides of the top surface of the cross frame 5 corresponding to the joints of the T-shaped support frames 3, the two first stepping motors 4 are respectively connected with lead screws 1 which are respectively positioned in the T-shaped support frames 3 and movably connected through bearings in a transmission manner through motor shafts, an isolation plate 11 is connected between the two lead screws 1 in a sliding manner, the isolation plate 11 comprises an outer ring frame 114 and a turntable 113 rotationally connected with the outer ring frame and the inner part of the outer ring frame, the upper surface of the turntable 113 is uniformly provided with a branch gas pipe through hole 112, the side wall of the outer ring frame 114 is welded with a pair of lead screw nut blocks 111 which are rotationally connected with the lead screws 1, the bottoms of one side of each of the two;
the bottom of the transverse frame 5 is symmetrically provided with a pair of MYT3-23 hydraulic pushers 9 about the central plane of the transverse frame 5, the end parts of telescopic rods of the pair of MYT3-23 hydraulic pushers 9 are connected with a fixed plate 10 in a transmission way, the inside of the fixed plate 10 is movably connected with an air blowing frame 2 through a bearing, the air blowing frame 2 comprises a main air inlet pipe 21, air distribution disc 22 and expenditure trachea 23, the air inlet intercommunication of air distribution disc 22 upper end has and runs through to extend to crossbearer 5 upper portion with fixed plate 10 inner bearing swing joint and main intake pipe 21, the air inlet of main intake pipe 21 is connected with air cock 7, the lower extreme of air distribution disc 22 corresponds the expenditure trachea 23 intercommunication of trachea perforation 112 internal sliding connection through the gas outlet with the bronchus perforation 112 in the position department, the upper portion of fixed plate 10 is fixed with second step motor 6, the motor shaft outer wall joint of second step motor 6 has driving gear 12, driving gear 12 and the driven gear 8 meshing transmission of joint in main intake pipe 21 outside.
The axis of the air outlet pipe 23 is vertical to the upper end face of the isolation plate 11, the outer diameter of the air outlet pipe 23 is in transition fit with the inner diameter of the air outlet pipe perforation 112, the horizontal section of the vertical part of the T-shaped support frame 3 is U-shaped, and the rotation angle of the air blowing frame 2 is 0-90 degrees.
The invention has the beneficial effects that:
1. during the manufacturing process of the nickel-based alloy, firstly, raw materials are melted according to the proportion, then, a certain amount of Ni-Fe alloy is added into the alloy raw materials in the molten state, and the Ni-Fe alloy is fully mixed with the alloy raw materials in the molten state through stirring equipment, the mixing mode can keep the austenite matrix and the grain boundary of the alloy and also contain the carbonitride of intermetallic phases and metals, the corrosion resistance of the nickel-based alloy is improved, and then the high temperature resistance of the nickel-based alloy is improved through quenching and cooling;
2. the stirring device is movably connected with a screw rod 1 through a bearing in the pair of T-shaped supporting frames 3, then the screw rod 1 is driven by a first stepping motor 4 to drive a separation plate 11 to move up and down, the upper end surface of the separation plate 11 is uniformly provided with a bronchus perforation 112, the bottom of a cross frame 5 of the stirring device is in transmission connection with a fixing plate 10 through a pair of MYT3-23 hydraulic pushers 9, the inside of the fixing plate 10 is movably connected with an air blowing frame 2 through a bearing, the upper part of the air blowing frame 2 is provided with a main air inlet pipe 21 which penetrates through and extends to the upper part of the cross frame 5, the lower part of the air blowing frame 2 is communicated with a plurality of exhaust pipes 23 which are in sliding connection with the bronchus perforation 112, the air blowing frame 2 is driven to rotate through a second stepping motor 6, the structure can stir molten alloy through a gas introduction and stirring mode, the stirring effect is better, and the, the molten alloy attached to the outer wall of the outgoing air pipe 23 can be scraped off in the upward movement process of the outgoing air pipe 23, so that the tidiness of the outer wall of the outgoing air pipe 23 is ensured.
The working principle of the stirring equipment is as follows: when the device is used, an air outlet pipe of an external air supply device is connected with an air nozzle 7, an air blowing frame 2 of a stirring device is aligned to a furnace body containing molten alloy through a universal self-locking wheel 14 and a directional wheel 13 at the bottom of a T-shaped support frame 3, then two first stepping motors 4 are controlled to work, a lead screw 1 is driven to rotate through the first stepping motors 4, a partition plate 11 is driven to move downwards by utilizing the screwing action between the lead screw 1 and a lead screw nut block 111 on the side wall of the partition plate 11, then a pair of MYT3-23 hydraulic pushers 9 are controlled to drive the air blowing frame 2 to move downwards, so that an exhaust pipe 23 of the air blowing frame 2 is arranged in the molten alloy, then the external air supply device supplies air to the air blowing frame 2, the air is guided into the molten alloy through the exhaust pipe 23, then a second stepping motor 6 is controlled to drive the air blowing frame 2 to rotate in a reciprocating mode, and further drive the air blowing, molten alloy is stirred through the branch gas pipes 23 of the gas blowing frame 2, after stirring is finished, external gas supply equipment is controlled to continuously supply gas, and then the pair of MYT3-23 hydraulic pushers 9 are controlled to contract, so that the outer walls of the branch gas pipes 23 are scraped with the branch gas pipe through holes 112 of the partition plate 11, and the molten alloy attached to the outer walls of the branch gas pipes 23 is peeled off.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is illustrative and explanatory only and is not intended to be exhaustive or to limit the invention to the precise embodiments described, and various modifications, additions, and substitutions may be made by those skilled in the art without departing from the scope of the invention or exceeding the scope of the claims.
Claims (5)
1. The manufacturing method of the corrosion-resistant cast nickel-based superalloy is characterized by comprising the manufacturing steps of raw material melting, alloy adding, nickel-based superalloy ingot preparation, hot forging deformation and quenching cooling, and comprises the following specific steps:
(1) melting raw materials: preparing raw materials according to the component requirements of the corrosion-resistant cast nickel-based high-temperature alloy, placing the raw materials in a vacuum induction furnace, heating at the heating speed of 25-30 ℃/min, starting an argon protection device when the temperature is increased to 480 ℃, then continuously heating to 1540-1585 ℃ under the condition that the flow of argon is 30-45 ml/s, and keeping the temperature for 20 min;
(2) alloy addition: adding a certain amount of Ni-Fe alloy into the molten corrosion-resistant cast nickel-based high-temperature alloy, and stirring the mixed corrosion-resistant cast nickel-based high-temperature alloy melt for 10min by using stirring equipment;
(3) preparing a nickel-based high-temperature alloy ingot: reducing the temperature of the melt to 1450-1500 ℃, keeping the temperature constant, standing for 5-10 minutes, and pouring the melt into a preheated metal mold to prepare a nickel-based high-temperature alloy ingot;
(4) hot forging deformation: conveying the prepared nickel-based high-temperature alloy ingot to a hot forging die, heating to 1200-1250 ℃ through a resistance wire heating furnace, and carrying out hot forging deformation under the condition that the finish forging temperature is 990-1010 ℃ to obtain a deformed corrosion-resistant cast nickel-based high-temperature alloy blank;
(5) quenching and cooling: immersing the deformed corrosion-resistant cast nickel-based high-temperature alloy blank into a quenching medium and cooling to room temperature to obtain the corrosion-resistant cast nickel-based high-temperature alloy;
in the second manufacturing method, the stirring equipment comprises two T-shaped support frames (3) and a cross frame (5) welded between the two T-shaped support frames (3), wherein the two sides of the top surface of the cross frame (5) are respectively fixed with a first stepping motor (4) corresponding to the joint of the T-shaped support frames (3), the two first stepping motors (4) are respectively connected with lead screws (1) which are respectively positioned in the T-shaped support frames (3) and movably connected through bearings in a transmission way through motor shafts, an isolation plate (11) is connected between the two lead screws (1) in a sliding way, the isolation plate (11) comprises an outer ring frame (114) and a turntable (113) rotationally connected with the outer ring frame in the inner part, the upper surface of the turntable (113) is uniformly provided with a branch pipe through hole (112), the side wall of the outer ring frame (114) is welded with a pair of lead screw nut blocks (111) rotationally connected with the lead screws (1), the bottoms of one side of the two T-, a pair of universal self-locking wheels (14) are welded at the bottoms of the other sides of the two T-shaped support frames (3);
the bottom of the transverse frame (5) is symmetrically provided with a pair of MYT3-23 hydraulic pushers (9) about the central plane of the transverse frame (5), the telescopic rod end parts of the pair of MYT3-23 hydraulic pushers (9) are in transmission connection with a fixing plate (10), the inside of the fixing plate (10) is movably connected with an air blowing frame (2) through bearings, the air blowing frame (2) comprises a main air inlet pipe (21), an air distribution disc (22) and an exhaust pipe (23), an air inlet at the upper end of the air distribution disc (22) is communicated with the main air inlet pipe (21) which is movably connected with the inner bearing of the fixing plate (10) and penetrates through and extends to the upper part of the transverse frame (5), the air inlet of the main air inlet pipe (21) is connected with an air nozzle (7), and the exhaust pipe (23) which is in sliding connection with the exhaust pipe perforation (112) through an air outlet is arranged at the position where the, a second stepping motor (6) is fixed on the upper portion of the fixing plate (10), a driving gear (12) is clamped on the outer wall of a motor shaft of the second stepping motor (6), and the driving gear (12) is in meshing transmission with a driven gear (8) clamped outside a main air inlet pipe (21);
step one, the corrosion-resistant cast nickel-based superalloy consists of the following elements in percentage by mass: cr: 23.5-26.0%, Co 6.0-6.80%, Ti: 1.20-1.40%, Al: 0.25-0.50%, C: 0.03-0.08 percent of Ni, less than or equal to 0.010 percent of B, less than or equal to 0.010 percent of Ce, less than or equal to 0.35 percent of Mn, less than or equal to 0.65 percent of Si, less than or equal to 0.015 percent of P, less than or equal to 0.007 percent of S, and the balance of Ni and inevitable impurities;
in the Ni-Fe alloy in the second step, the adding amount of iron accounts for 58-61% of the mass of the Ni-Fe alloy, the balance is nickel, and the iron accounts for 4.0-4.5% of the total mass of the corrosion-resistant cast nickel-based high-temperature alloy.
2. The method for manufacturing the corrosion-resistant cast nickel-based superalloy according to claim 1, wherein the deformation mode of the hot forging deformation in the third step is a multiple accumulated deformation mode, the total deformation is 30% -40%, wherein the single deformation is 6% -7%, the multi-direction alternate forging deformation is adopted, namely after the corrosion-resistant cast nickel-based superalloy mixed with the Ni-Fe alloy is deformed by 6% -7% in one direction, the overturning material is deformed again in the other direction, and the like, 6 surfaces are alternately deformed.
3. The method for manufacturing a corrosion-resistant cast nickel-base superalloy according to claim 1, wherein the axis of the outlet pipe (23) is perpendicular to the upper end surface of the isolation plate (11), and the outer diameter of the outlet pipe (23) is in transition fit with the inner diameter of the branch pipe penetration hole (112).
4. A method for manufacturing a corrosion resistant cast nickel base superalloy according to claim 1, wherein the horizontal cross section of the vertical portion of the T-shaped support frame (3) is U-shaped.
5. A method for manufacturing a corrosion resistant cast nickel base superalloy according to claim 1, wherein the angle of rotation of the gas blowing stand (2) is 0-90 °.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1790750A2 (en) * | 2005-11-28 | 2007-05-30 | United Technologies Corporation | Superalloy stabilization |
| CN103128256A (en) * | 2013-03-14 | 2013-06-05 | 哈尔滨工业大学 | Preparation method for GH 4133 nickel-base superalloy semisolid blank |
| CN104043792A (en) * | 2014-07-04 | 2014-09-17 | 机械科学研究总院（将乐）半固态技术研究所有限公司 | Manufacturing device for light alloy or light metal semi-solid slurry and manufacturing method |
| CN208320601U (en) * | 2018-05-05 | 2019-01-04 | 浙江威克新材料科技发展有限公司 | A kind of efficient asphalt process units |
-
2019
- 2019-02-22 CN CN201910133867.7A patent/CN109628783B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1790750A2 (en) * | 2005-11-28 | 2007-05-30 | United Technologies Corporation | Superalloy stabilization |
| CN103128256A (en) * | 2013-03-14 | 2013-06-05 | 哈尔滨工业大学 | Preparation method for GH 4133 nickel-base superalloy semisolid blank |
| CN104043792A (en) * | 2014-07-04 | 2014-09-17 | 机械科学研究总院（将乐）半固态技术研究所有限公司 | Manufacturing device for light alloy or light metal semi-solid slurry and manufacturing method |
| CN208320601U (en) * | 2018-05-05 | 2019-01-04 | 浙江威克新材料科技发展有限公司 | A kind of efficient asphalt process units |
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