CN115625292A - Investment casting method for producing nickel-based superalloy rocker arm - Google Patents

Investment casting method for producing nickel-based superalloy rocker arm Download PDF

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Publication number
CN115625292A
CN115625292A CN202211368542.5A CN202211368542A CN115625292A CN 115625292 A CN115625292 A CN 115625292A CN 202211368542 A CN202211368542 A CN 202211368542A CN 115625292 A CN115625292 A CN 115625292A
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China
Prior art keywords
nickel
shell
wax
rocker arm
chamber body
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CN202211368542.5A
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Inventor
程国华
吴文京
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Ningguo Huacheng Jinyan Science & Technology Co ltd
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Ningguo Huacheng Jinyan Science & Technology Co ltd
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Priority to CN202211368542.5A priority Critical patent/CN115625292A/en
Publication of CN115625292A publication Critical patent/CN115625292A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/02—Sand moulds or like moulds for shaped castings
    • B22C9/04—Use of lost patterns
    • B22C9/043—Removing the consumable pattern
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C7/00—Patterns; Manufacture thereof so far as not provided for in other classes
    • B22C7/02—Lost patterns
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/12—Treating moulds or cores, e.g. drying, hardening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/22—Moulds for peculiarly-shaped castings
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • 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
    • C22C19/051—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W
    • C22C19/055—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W with the maximum Cr content being at least 20% but less than 30%

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

The invention discloses an investment casting method for producing a nickel-based superalloy rocker arm, which comprises the following steps: the invention relates to the technical field of investment casting, in particular to a method for manufacturing a wax mould, which comprises the steps of wax mould manufacturing, crusting, pouring and forming, wherein a vacuum smelting chamber used in the steps comprises a smelting chamber body and a frame body, the smelting chamber body is arranged on the inner side of the frame body, and the left side of the smelting chamber body is rotatably connected with the left side of the middle part of the frame body. According to the investment casting method for producing the nickel-based superalloy rocker arm, glue is coated for multiple times, the shell is roasted for multiple times according to different temperature environments, and the obtained shell is subjected to sand adding treatment, so that the shell has good strength, cracks can not appear even if the nickel-based superalloy is poured, one side of the smelting chamber body is arranged to rotate with the frame body, and the electric push rod II is used for stretching and retracting in a reciprocating mode, so that the nickel-based superalloy raw material molten liquid on the inner side of the smelting chamber body shakes in a reciprocating mode, and the stirring effect is achieved.

Description

Investment casting method for producing nickel-based superalloy rocker arm
Technical Field
The invention relates to the technical field of investment casting, in particular to an investment casting method for producing a nickel-based superalloy rocker arm.
Background
In the prior art, the investment casting method is simple, namely, a meltable model is made of a fusible material, a plurality of layers of special refractory coatings are coated on the meltable model, an integral shell is formed after drying and hardening, the model is melted off from the shell by steam or hot water, then the shell is placed in a sand box, dry sand is filled around the shell for molding, finally the casting mold is placed in a roasting furnace for high-temperature roasting, and the casting mold or the shell is roasted, and then molten metal is poured into the casting mold to obtain a casting.
However, in the existing investment casting process, the outer layer of the investment casting process is prepared by using water glass to prepare the coating, and the quartz sand is bonded after the coating is coated, so that the shell prepared by the process has poor outer layer strength, is easy to break and is not suitable for precision casting of high-melting-point alloy materials;
and the vacuum melting chamber can be used in the investment casting process, the existing vacuum melting chamber has the defect of poor stirring effect, the working efficiency is influenced, and the traditional material taking mode generally takes out the alloy liquid from the vacuum melting chamber through tweezers, so that the potential safety hazard is large.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides an investment casting method for producing a nickel-based superalloy rocker arm, which solves the problems that the strength of the outer layer of a shell prepared by the prior art is poor, the stirring effect of the conventional vacuum melting chamber is poor, the working efficiency is influenced, and the potential safety hazard is large.
In order to achieve the purpose, the invention is realized by the following technical scheme: an investment casting method for producing a nickel-based superalloy rocker arm comprises the following steps:
s1, wax mold manufacturing
Manufacturing a three-dimensional CAD model of an investment according to the design size of the rocker arm to be cast, manufacturing an investment prototype used for casting a wax pattern model by using a 3D printing technology, and manufacturing the wax pattern model by using the investment prototype;
brushing a release agent on the inner surface of the wax mould model, then injecting wax into the wax mould model, and obtaining a wax blank after solidification and forming;
finishing the surface of the wax blank, and connecting a wax mould with a casting head to obtain a wax mould;
s2, crusting
Brushing a film shell coating on the outer surface of the wax mould, reinforcing, adding a refractory material into the film shell coating, dewaxing after drying the film shell coating in the shade to obtain a shell, and roasting the dewaxed shell to enable the shell to meet the casting requirement;
loading the roasted shell into a sand box, adding dry sand, and performing vibration treatment on the sand box with the dry sand added, so that the dry sand of the sand box is vibrated and compacted, and the shell is reinforced;
s3, pouring
Putting a nickel-based alloy raw material into a vacuum melting chamber, vacuumizing the vacuum melting chamber, heating the vacuum melting chamber to 1650 ℃ to melt the nickel-based alloy raw material in the vacuum melting chamber, introducing inert gas into the vacuum melting chamber for refining after the raw material in the vacuum melting chamber is completely melted to obtain nickel-based alloy liquid, pouring the nickel-based alloy liquid into a shell, and solidifying for treatment, wherein the pouring temperature of the nickel-based alloy liquid is 1300-1500 ℃;
s4, forming
And removing the dry sand and the shell to obtain a rocker blank, and cleaning to obtain a finished rocker.
Preferably, in S1, when the wax blank is manufactured, a wire is laid inside the wax pattern model, and an end of the wire is extended to the pouring opening.
Preferably, in S2, the number of the coating layers of the film shell coating is three, and the shell is subjected to three times of baking treatment, wherein the material of the film shell coating is silica sol:
the temperature of the first roasting is 500 ℃, the time is 0.5 hour, and then cooling treatment is carried out at the cooling speed of 300 ℃/h;
the temperature of the second roasting is 800 ℃, the time is 1 hour, and then cooling treatment is carried out at the cooling speed of 300 ℃/h;
the temperature of the third roasting is 1200 ℃ and the time is 2 hours, and then the cooling treatment is carried out at the cooling speed of 300 ℃/h.
Preferably, in S3, the solidification treatment method of the nickel-based alloy liquid is:
and placing the cast shell in an annealing furnace, setting the lowest temperature to be 600 ℃ and the time to be 6 hours, then setting the lowest temperature of the annealing furnace to be 400 ℃ and the time to be 4 hours, then setting the lowest temperature of the annealing furnace to be 180 ℃ and the time to be 3 hours, finally shutting down the annealing furnace, taking out the shell, and carrying out air cooling.
Preferably, the vacuum melting chamber comprises a melting chamber body and a frame body, the melting chamber body is arranged on the inner side of the frame body, and the left side of the melting chamber body is rotatably connected with the left side of the middle part of the frame body;
the right side of the interior of the frame body is provided with an arc-shaped supporting plate, the bottom of the arc-shaped supporting plate is communicated with a discharging barrel, and corners of the arc-shaped supporting plate and the upper portion of the discharging barrel are of arc-shaped structures.
Preferably, the right side of the smelting chamber body is communicated with a discharge pipe, and a plugging member is arranged at the discharge pipe;
the blocking component comprises a blocking rod barrel and a pressing wheel, the left end of the blocking rod barrel penetrates through the inner side of the discharging barrel, the bottom of the blocking rod barrel is communicated with an outlet, the right end of the blocking rod barrel is fixedly connected with a pressing plate, the pressing wheel is rotatably connected with the right side of the pressing plate, and the pressing wheel is in contact with the arc-shaped pressing plate;
and springs are arranged between the two sides of the pressing plate and the right side of the smelting chamber body.
Preferably, the bottom of the smelting chamber body is of a semicircular structure, the bottom of the smelting chamber body is fixedly connected with an abrasion-resistant plate, a discharging hole is formed in the upper portion of the smelting chamber body, and a cover body is arranged at the discharging hole.
Preferably, the upper portion of the frame body is fixedly connected with an electric push rod I, the output end of the electric push rod I is fixedly connected with the bearing plate, the bottom of the bearing plate is fixedly connected with an electric push rod II, the output end of the electric push rod II is fixedly connected with the bearing wheel, and the bearing wheel is in contact with the wear-resisting plate.
Advantageous effects
The invention provides an investment casting method for producing a nickel-based superalloy rocker arm. Compared with the prior art, the method has the following beneficial effects:
according to the invention, the shell is subjected to multiple times of roasting treatment through multiple times of coating glue and according to different temperature environments, and the obtained shell is subjected to sand adding treatment, so that the shell has better strength, and cracks can not appear even if the nickel-based high-temperature alloy is poured;
an iron wire is laid in the wax mould model, and the end part of the iron wire extends to the casting head, so that the melting speed of the wax mould is improved, and the wax liquid can be conveniently and quickly removed from the interior of the shell;
one side of the smelting chamber body is arranged to rotate with the frame body, and the electric push rod II is used for stretching and retracting in a reciprocating mode, so that the nickel-based alloy raw material molten liquid on the inner side of the smelting chamber body shakes in a reciprocating mode, the stirring effect is achieved, meanwhile, the pressing wheel is in contact with the arc-shaped pressing plate, the discharging pipe is guaranteed to be continuously plugged by the plugging rod barrel, and the nickel-based alloy is prevented from flowing out;
through setting up electric push rod two, and it drives the carrier wheel and moves down, the inclination grow of smelting chamber body, and the spring top moves and supports the clamp plate for the exit stretches out the outside of discharging pipe, and nickel base alloy liquid flows in through play feed cylinder department, and simple structure conveniently arranges the material, and the security that improve equipment used avoids traditional material mode of getting to have great potential safety hazard problem.
Drawings
FIG. 1 is a structural cross-sectional view of a vacuum melting chamber of the present invention;
FIG. 2 is a cross-sectional view of a variation of the vacuum melting chamber of the present invention;
FIG. 3 is a perspective view of a plugging member structure of the vacuum melting chamber of the present invention.
In the figure: 1. a melting chamber body; 11. a discharge pipe; 12. a wear plate; 13. a discharging port; 14. a cover body; 2. a frame body; 21. an arc-shaped abutting plate; 22. a discharging barrel; 31. plugging the rod barrel; 32. pressing the wheel; 33. pressing the plate; 34. a spring; 35. an outlet; 4. an electric push rod I; 41. a carrier plate; 42. an electric push rod II; 43. a load bearing wheel.
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.
The invention provides a technical scheme that: an investment casting method for producing a nickel-based superalloy rocker arm comprises the following steps:
s1, wax mold manufacturing
Manufacturing a three-dimensional CAD model of an investment pattern according to the design size of a rocker arm to be cast, manufacturing an investment pattern prototype used for casting a wax pattern model by a 3D printing technology, manufacturing a wax pattern model by the aid of the investment pattern prototype, brushing a release agent on the inner surface of the wax pattern model, injecting wax into the wax pattern model, solidifying and forming to obtain a wax blank, paving an iron wire in the wax pattern model and enabling the end of the iron wire to extend to a casting head when the wax blank is manufactured, trimming the surface of the wax blank, connecting the wax pattern with the casting head to manufacture a wax pattern, paving the iron wire in the wax pattern model and enabling the end of the iron wire to extend to the casting head to improve the melting speed of the wax pattern, and facilitating quick removal of wax liquid from the interior of a shell;
s2, crusting
Brushing a film shell coating on the outer surface of a wax mould, reinforcing, adding a refractory material into the film shell coating, dewaxing after the film shell coating is dried in the shade to obtain a shell, roasting the dewaxed shell, and enabling the shell to meet the casting requirement, wherein the number of the coating layers of the film shell coating is three, and the shell is roasted for three times, wherein the material of the film shell coating is silica sol:
the temperature of the first roasting is 500 ℃, the time is 0.5 hour, and then cooling treatment is carried out at the cooling speed of 300 ℃/h;
the temperature of the second roasting is 800 ℃, the time is 1 hour, and then cooling treatment is carried out at the cooling speed of 300 ℃/h;
the temperature of the third roasting is 1200 ℃, the time is 2 hours, and then the cooling treatment is carried out at the cooling speed of 300 ℃/h;
the shell after roasting is placed into a sand box, then dry sand is added, and the sand box with the added dry sand is subjected to vibration treatment, so that the dry sand of the sand box is vibrated and compacted, and the shell is reinforced;
s3, pouring
Putting a nickel-based alloy raw material into a vacuum melting chamber, and then vacuumizing the vacuum melting chamber;
the nickel-based alloy comprises the following raw material components, by weight, 0.10% of C, 0.35% of Si, 0.65% of Mn, 0.22% of Fe, 1.8% of Co, 0.25% of Al, 0.05% of Ti, 22.4% of Cr, 0.20% of Nb, 1.5% of Mo1, 13% of W, 0.30% of Re, 0.005% of B, 1.1% of Ce, 1.2% of Ru, 0.8% of Hf, 2.5% of Ta, 0.15% of V, 0.005% of S, 0.007% of P, and the balance of nickel and inevitable impurities;
heating the vacuum melting chamber to 1650 ℃ to melt the nickel-based alloy raw material in the vacuum melting chamber, introducing inert gas into the vacuum melting chamber after the raw material in the vacuum melting chamber is completely melted to carry out refining to obtain nickel-based alloy liquid, then pouring the nickel-based alloy liquid into the shell, and then solidifying for treatment, wherein the pouring temperature of the nickel-based alloy liquid is 1300-1500 ℃;
the solidification treatment mode of the nickel-based alloy liquid is as follows:
placing the cast shell in an annealing furnace, setting the lowest temperature to be 600 ℃ and the time to be 6 hours, then setting the lowest temperature of the annealing furnace to be 400 ℃ and the time to be 4 hours, then setting the lowest temperature of the annealing furnace to be 180 ℃ and the time to be 3 hours, finally shutting down the annealing furnace, taking out the shell, and carrying out air cooling;
s4, forming
And removing the dry sand and the shell to obtain a rocker blank, and cleaning to obtain a finished rocker.
Referring to fig. 1-3, a vacuum melting chamber used in an investment casting method for producing a nickel-based superalloy rocker arm includes a melting chamber body 1 and a frame body 2, the melting chamber body 1 is disposed inside the frame body 2, the left side of the melting chamber body 1 is rotatably connected to the left side of the middle of the frame body 2, the bottom of the melting chamber body 1 is of a semicircular structure, an abrasion-resistant plate 12 is fixedly connected to the bottom of the melting chamber body 1, a discharge hole 13 is formed in the upper portion of the melting chamber body 1, a cover body 14 is disposed at the discharge hole 13, an electric push rod one 4 is fixedly connected to the upper portion of the frame body 2, a bearing plate 41 is fixedly connected to an output end of the electric push rod one 4, an electric push rod two 42 is fixedly connected to the bottom of the bearing plate 41, a bearing wheel 43 is fixedly connected to an output end of the electric push rod two 42, the bearing wheel 43 is in contact with the abrasion-resistant plate 12, one side of the melting chamber body 1 is disposed to rotate with the frame body 2, the electric push rod two 42 is reciprocally retractable, so that an alloy raw material melt inside the melting chamber body 1 is reciprocally swung, thereby achieving a stirring effect, and while the nickel-resistant wheel 32 is in contact with the arc-resistant pressing plate 21, thereby ensuring that a nickel-based superalloy rocker arm 11 is continuously blocked to prevent the alloy barrel from flowing out;
the right side of the smelting chamber body 1 is communicated with a discharge pipe 11, a plugging member is arranged at the position of the discharge pipe 11 and comprises a plugging rod cylinder 31 and a pressing wheel 32, the left end of the plugging rod cylinder 31 penetrates through the inner side of the discharge cylinder 22, an outlet 35 is communicated with the bottom of the plugging rod cylinder 31, the right end of the plugging rod cylinder 31 is fixedly connected with the pressing plate 33, the pressing wheel 32 is rotatably connected with the right side of the pressing plate 33, an arc-shaped pressing plate 21 is arranged at the right side inside the frame body 2, the bottom of the arc-shaped pressing plate 21 is communicated with the discharge cylinder 22, the corners of the upper portions of the arc-shaped pressing plate 21 and the discharge cylinder 22 are of arc-shaped structures, the pressing wheel 32 is in contact with the arc-shaped pressing plate 21, springs 34 are arranged between the two sides of the pressing plate 33 and the right side of the smelting chamber body 1, electric push rods 42 are arranged, the electric push rods drive the bearing wheels 43 to move downwards, the inclination angle of the smelting chamber body 1 is increased, the spring 34 pushes the pressing plate 33, the outlet 35 extends out of the discharge pipe 11, alloy liquid flows in through the discharge cylinder 22, the nickel base is simple and convenient in structure, the safety hazard of the discharge device is avoided, and the potential safety hazard of the traditional discharge device.
And those not described in detail in this specification are well within the skill of those in the art.
When the vacuum melting chamber is used;
the nickel-based alloy raw material is put into the smelting chamber body 1 through the discharge hole 13, then the cover body 14 is covered, and the smelting chamber body 1 carries out high-temperature melting on the nickel-based alloy raw material;
in the process of melting the nickel-based alloy raw material at a high temperature, the smelting chamber body 1 and the frame body 2 rotate by starting the electric push rod II 42 to stretch and retract in a reciprocating manner, the bearing wheel 43 connected to the bearing plate 41 is continuously contacted with the wear-resisting plate 12 by the smelting chamber body 1 through self gravity, when the electric push rod II 42 contracts, the bearing plate 41 drives the right side of the smelting chamber body 1 to lift, when the electric push rod II 42 extends out, the bearing plate 41 descends, the right side of the bearing plate 41 is descended by the smelting chamber body 1 through gravity, and then the nickel-based alloy raw material molten liquid inside the smelting chamber body 1 is shaken in a reciprocating manner, so that a stirring effect is realized, meanwhile, the pressing wheel 32 is contacted with the arc-shaped abutting plate 21, and the discharging pipe 11 is continuously blocked by the blocking rod barrel 31;
when the melting chamber body 1 finishes melting the nickel-based alloy raw material, the electric push rod II 42 is stretched to the farthest distance, the bearing wheel 43 is driven by the electric push rod II 42 to move downwards, the inclination angle of the melting chamber body 1 is increased, the pressing wheel 32 is in contact with the arc-shaped pressing plate 21 and the corner of the upper portion of the discharge barrel 22, the spring 34 pushes the pressing plate 33, the outlet 35 extends out of the discharge pipe 11, and then the nickel-based alloy liquid on the inner side of the melting chamber body 1 flows in through the discharge barrel 22.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
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 (8)

1. An investment casting method for producing a nickel-based superalloy rocker arm is characterized by comprising the following steps:
s1, wax mold manufacturing
Manufacturing a three-dimensional CAD model of an investment according to the design size of the rocker arm to be cast, manufacturing an investment prototype used for casting a wax pattern model by a 3D printing technology, and manufacturing the wax pattern model by the investment prototype;
brushing a mold release agent on the inner surface of the wax mold model, then injecting wax into the wax mold model, and obtaining a wax blank after solidification and molding;
finishing the surface of the wax blank, and connecting a wax mould with a casting head to obtain a wax mould;
s2, crusting
Brushing a film shell coating on the outer surface of the wax mould, carrying out reinforcement treatment, adding a refractory material into the film shell coating, dewaxing after drying the film shell coating in the shade to obtain a shell, and roasting the dewaxed shell to enable the shell to meet the casting requirement;
loading the roasted shell into a sand box, adding dry sand, and performing vibration treatment on the sand box with the dry sand to ensure that the dry sand of the sand box vibrates and is compacted, and reinforcing the shell;
s3, pouring
Putting a nickel-based alloy raw material into a vacuum melting chamber, vacuumizing the vacuum melting chamber, heating the vacuum melting chamber to 1650 ℃ to melt the nickel-based alloy raw material in the vacuum melting chamber, introducing inert gas into the vacuum melting chamber for refining after the raw material in the vacuum melting chamber is completely melted to obtain nickel-based alloy liquid, pouring the nickel-based alloy liquid into a shell, and solidifying for treatment, wherein the pouring temperature of the nickel-based alloy liquid is 1300-1500 ℃;
s4, forming
And removing the dry sand and the shell to obtain a rocker blank, and cleaning to obtain a finished rocker.
2. The investment casting method for producing the nickel-based superalloy rocker arm according to claim 1, wherein in S1, when the wax blank is manufactured, a wire is laid inside a wax pattern model, and an end of the wire extends to a pouring opening.
3. The investment casting method for producing the nickel-based superalloy rocker arm according to claim 1, wherein in S2, the number of the coating layers of the film shell coating is three, and the shell is subjected to three times of roasting treatment, wherein the material of the film shell coating is silica sol:
the temperature of the first roasting is 500 ℃, the time is 0.5 hour, and then cooling treatment is carried out at the cooling speed of 300 ℃/h;
the temperature of the second roasting is 800 ℃, the time is 1 hour, and then cooling treatment is carried out at the cooling speed of 300 ℃/h;
the temperature of the third calcination was 1200 ℃ for 2 hours, and then cooling treatment was performed at a cooling rate of 300 ℃/h.
4. The investment casting method for producing the nickel-based superalloy rocker arm according to claim 1, wherein in S3, the solidification treatment mode of the nickel-based alloy liquid is as follows:
and placing the cast shell in an annealing furnace, setting the lowest temperature to be 600 ℃ and the time to be 6 hours, then setting the lowest temperature of the annealing furnace to be 400 ℃ and the time to be 4 hours, then setting the lowest temperature of the annealing furnace to be 180 ℃ and the time to be 3 hours, finally shutting down the annealing furnace, taking out the shell, and carrying out air cooling.
5. The investment casting method for producing the nickel-based superalloy rocker arm according to claim 1, wherein the vacuum melting chamber comprises a melting chamber body (1) and a frame body (2), the melting chamber body (1) is arranged on the inner side of the frame body (2), and the left side of the melting chamber body (1) is rotatably connected with the left side of the middle of the frame body (2);
the right side of the interior of the frame body (2) is provided with an arc-shaped supporting plate (21), the bottom of the arc-shaped supporting plate (21) is communicated with a discharging barrel (22), and corners of the arc-shaped supporting plate (21) and the upper portion of the discharging barrel (22) are of arc-shaped structures.
6. The investment casting method for producing the nickel-based superalloy rocker arm according to claim 5, wherein a discharge pipe (11) is communicated with the right side of the smelting chamber body (1), and a blocking member is arranged at the discharge pipe (11);
the blocking component comprises a blocking rod cylinder (31) and a pressing wheel (32), the left end of the blocking rod cylinder (31) penetrates through the inner side of the discharging cylinder (22), the bottom of the blocking rod cylinder (31) is communicated with an outlet (35), the right end of the blocking rod cylinder (31) is fixedly connected with the pressing plate (33), the pressing wheel (32) is rotatably connected with the right side of the pressing plate (33), and the pressing wheel (32) is in contact with the arc-shaped pressing plate (21);
and a spring (34) is arranged between the two sides of the pressing plate (33) and the right side of the smelting chamber body (1).
7. The investment casting method for producing the nickel-based superalloy rocker arm according to claim 5, wherein the bottom of the smelting chamber body (1) is of a semicircular structure, an abrasion-resistant plate (12) is fixedly connected to the bottom of the smelting chamber body (1), a discharging hole (13) is formed in the upper portion of the smelting chamber body (1), and a cover body (14) is arranged at the discharging hole (13).
8. The investment casting method for producing the nickel-based superalloy rocker arm according to claim 7, wherein a first electric push rod (4) is fixedly connected to the upper portion of the frame body (2), a bearing plate (41) is fixedly connected to an output end of the first electric push rod (4), a second electric push rod (42) is fixedly connected to the bottom of the bearing plate (41), a bearing wheel (43) is fixedly connected to an output end of the second electric push rod (42), and the bearing wheel (43) is in contact with the wear-resisting plate (12).
CN202211368542.5A 2022-11-03 2022-11-03 Investment casting method for producing nickel-based superalloy rocker arm Pending CN115625292A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211368542.5A CN115625292A (en) 2022-11-03 2022-11-03 Investment casting method for producing nickel-based superalloy rocker arm

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211368542.5A CN115625292A (en) 2022-11-03 2022-11-03 Investment casting method for producing nickel-based superalloy rocker arm

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Publication Number Publication Date
CN115625292A true CN115625292A (en) 2023-01-20

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Application Number Title Priority Date Filing Date
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