CN115125382A - Heat treatment device and heat treatment method for powder high-temperature alloy dual-performance turbine disc - Google Patents
Heat treatment device and heat treatment method for powder high-temperature alloy dual-performance turbine disc Download PDFInfo
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- CN115125382A CN115125382A CN202210906663.4A CN202210906663A CN115125382A CN 115125382 A CN115125382 A CN 115125382A CN 202210906663 A CN202210906663 A CN 202210906663A CN 115125382 A CN115125382 A CN 115125382A
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 87
- 238000000034 method Methods 0.000 title claims abstract description 25
- 239000000843 powder Substances 0.000 title claims abstract description 15
- 229910045601 alloy Inorganic materials 0.000 title abstract description 6
- 239000000956 alloy Substances 0.000 title abstract description 6
- 238000009434 installation Methods 0.000 claims abstract description 33
- 238000003825 pressing Methods 0.000 claims description 24
- 230000003014 reinforcing effect Effects 0.000 claims description 11
- 229910000601 superalloy Inorganic materials 0.000 claims description 9
- 230000009977 dual effect Effects 0.000 claims description 2
- 230000006641 stabilisation Effects 0.000 claims 1
- 238000011105 stabilization Methods 0.000 claims 1
- 230000035882 stress Effects 0.000 description 7
- 230000032683 aging Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000003754 machining Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012797 qualification Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001513 hot isostatic pressing Methods 0.000 description 1
- 238000010275 isothermal forging Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/003—Apparatus, e.g. furnaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/24—After-treatment of workpieces or articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F5/009—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of turbine components other than turbine blades
-
- 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
- C21D9/0006—Details, accessories not peculiar to any of the following furnaces
- C21D9/0018—Details, accessories not peculiar to any of the following furnaces for charging, discharging or manipulation of charge
-
- 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
- C21D9/0006—Details, accessories not peculiar to any of the following furnaces
- C21D9/0025—Supports; Baskets; Containers; Covers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/24—After-treatment of workpieces or articles
- B22F2003/248—Thermal after-treatment
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention discloses a heat treatment device and a heat treatment method for a powder high-temperature alloy dual-performance turbine disc, relates to the field of heat treatment, and aims to ensure the posture of a product during the heat treatment and reduce the deformation of the product. The technical scheme adopted by the invention is as follows: heat treatment device, including frame, installation axle and spacing bolt pole, the both sides that the frame is relative are fixed respectively and are set up the mount pad, and the mount pad sets up the through-hole groove, and the both ends of installation axle are placed respectively in two through-hole inslots, and the middle part of installation axle sets up at least two sets of spacing holes and is equipped with two piece at least spacing bolt poles, and the mount pad still sets up respectively and is used for being fixed in the hold-down mechanism in through-hole groove with the installation axle. The heat treatment method of the powder high-temperature alloy dual-performance turbine disc comprises the step of fixing the turbine disc on the heat treatment device, wherein a mounting shaft penetrates through a central circular hole of the turbine disc and is fixed. The disk surface of the turbine disk is vertical, the heating conditions on the two sides of the disk surface are basically the same, and the temperature difference on the surface of the turbine disk is effectively reduced, so that the heating deformation of the turbine disk is reduced.
Description
Technical Field
The invention relates to the field of heat treatment, in particular to a heat treatment device and a method for performing heat treatment on a powder high-temperature alloy dual-performance turbine disc through the heat treatment device.
Background
Along with the thrust-weight ratio of the aero-engine is higher and higher, the temperature in front of the turbine is also continuously improved, and meanwhile, due to the particularity of the working conditions of the turbine disc, the temperature gradient of the disc edge is larger than that of the disc center, so that higher requirements are put forward on the material of the turbine disc. At present, the material of the turbine disk is changed from the traditional wrought superalloy to the powder superalloy, and the development is further towards the direction of dual-performance powder. The dual-performance turbine disc is generally prepared by processes such as hot isostatic pressing, extrusion, isothermal forging, gradient heat treatment and the like, but the excessively complex manufacturing process can cause the internal stress of the disc part to be too large and cannot be completely eliminated, so that uncontrollable deformation is caused in the machining process, and the qualified rate is reduced.
The traditional internal stress release method is divided into natural aging and artificial aging. The method has the obvious defects that stress release is insufficient, the aging time is long, and the method generally needs one to two years or even longer time. The artificial aging is to heat the disc to a certain temperature and preserve heat, so that the stress in the material is relaxed, and the purpose of eliminating the internal stress is achieved.
Because the dish heating often adopts the mode of horizontal placement, under the dual function of temperature and gravity, the dish appears the deformation easily after ageing. For near finished size discs, the deformation is more severe and even scrapping of the disc is a concern. For a powder superalloy dual-performance turbine disk, the disk edge and the disk center are large in grain size difference and performance difference, so that deformation is easy to occur during heating. Therefore, a device and a method for performing heat treatment on a powder superalloy dual-performance turbine disk are needed, which can reduce the internal stress of the turbine disk, reduce the deformation after heat treatment, and improve the processing yield.
Disclosure of Invention
The present invention is to provide a heat treatment apparatus for ensuring the posture of a product during heat treatment and reducing the deformation of the product.
The technical scheme adopted by the invention is as follows: the heat treatment device comprises a frame, a mounting shaft and a limiting bolt rod, wherein two opposite sides of the frame are respectively and fixedly provided with a mounting seat, the mounting seats are provided with through hole grooves, and the heights of the two through hole grooves relative to the supporting surface of the bottom of the frame are equal; the mounting shaft is of a hollow tubular structure, two ends of the mounting shaft are respectively placed in the two through hole grooves, at least two groups of limiting holes are arranged in the middle of the mounting shaft, and connecting lines of the through holes in each group are parallel to each other and pass through the axis of the mounting shaft; the limiting bolt rods are at least two, one end of each limiting bolt rod is provided with an expanding structure, the size of each expanding structure is larger than that of each limiting hole, and the limiting bolt rods are inserted into the through holes in the same group of the mounting shaft; the two mounting seats are also respectively provided with a pressing mechanism for fixing the mounting shaft in the through hole groove.
Specifically, the method comprises the following steps: the frame comprises three rectangular frames and reinforcing pipes, wherein one rectangular frame is horizontally arranged, two vertically arranged rectangular frames are respectively welded on two sides of the rectangular frame, the reinforcing pipes are welded between the horizontally arranged rectangular frame and the vertically arranged rectangular frames, and the reinforcing pipes and the rectangular frames form a triangle; the middle parts of the top edges of the two vertically arranged rectangular frames are provided with mounting seats, the mounting seats are provided with through hole grooves with upward openings, and the through hole grooves are U-shaped.
Further, the method comprises the following steps: the both ends of the topside of two vertically arranged rectangle frames set up the through-hole respectively, install rings in the through-hole, and rings include fixed connection's screw rod and ring, and the screw rod is worn in the through-hole of rectangle frame and is fixed through the nut, and the ring sets up circular step with the junction of screw rod, and the external diameter of step is greater than the diameter of the through-hole of rectangle frame.
Further, the method comprises the following steps: the installation axle is hollow tubular structure, and the outside of installation axle forms at least one step face, and the both ends of installation axle are fixed connection hoist and mount piece respectively.
Further, the method comprises the following steps: one end of the hoisting piece is of a plate-shaped structure and is provided with a hoisting hole, the other end of the hoisting piece is of a cylindrical structure and is provided with a spigot at the opening end, the outer diameter of the spigot is matched with the inner diameter of the end part of the mounting shaft, the spigot is inserted into the end part of the mounting shaft and is welded and connected with the end part of the mounting shaft, and one end of the cylindrical structure, which is connected with the plate-shaped structure, is provided with at least one through hole.
Specifically, the method comprises the following steps: the body of rod of spacing bolt pole is cylindricly, and the one end of the body of rod is the hole enlargement structure that the rectangular plate formed, and the width of rectangular plate is greater than the diameter of the body of rod, and the other end of the body of rod sets up the through-hole, installs the anticreep ring in the through-hole, and the anticreep ring is for setting up open-ended ring.
Further, the method comprises the following steps: the pressing mechanism is a cover plate, one end of the cover plate is provided with a connector and is rotatably connected to one side of a through hole groove of the mounting seat, the other side of the through hole groove is connected with one end of a pull rod, the other end of the pull rod is connected with a pressing rod, the pressing rod is in a tuning fork structure, the pull rod is located in the tuning fork structure and is connected with the pressing rod through a pin, one end of the pressing rod, which is connected with the pull rod, is in a semicircular shape and is provided with an eccentric hole, and the pin is located in the eccentric hole.
Specifically, the method comprises the following steps: the mount pad sets up two rectangular channels respectively in the both sides of through-hole groove, and two planar coincidences of rectangular channel place are perpendicular with the central line in through-hole groove, and the connector of apron is inserted in one of them rectangular channel and is passed through pin joint, and the one end of depression bar is inserted in another rectangular channel and is passed through pin joint.
The heat treatment device has the beneficial effects that: the installation axle is worn to locate by the product that needs to carry out heat treatment, and the both sides of product are fixed through spacing bolt pole respectively, and the installation axle is placed in the through-hole inslot of two mount pads and is fixed through hold-down mechanism, moves the product together with whole heat treatment device to heat treatment system's heating intracavity again and stabilizes the heat treatment, can ensure the gesture of product during heat treatment, improves the heat treatment quality. The middle part of installation axle sets up the through-hole more than two sets of, is convenient for through the product of the fixed different specifications of spacing bolt pole, improves the commonality of device. The pressing mechanism is a cover plate and is matched with the pull rod and the pressing rod to lock the mounting shaft, the operation is simple, and the stability can be ensured. In addition, for the product of different specifications, can change the installation axle, heat treatment device's commonality is high.
The invention also provides a heat treatment method of the powder superalloy dual-performance turbine disc, and aims to reduce the internal stress of the turbine disc, reduce the deformation of the turbine disc after heat treatment and improve the processing qualification rate. The heat treatment method of the powder high-temperature alloy dual-performance turbine disc comprises the steps that the turbine disc is fixed to any one of the heat treatment devices, wherein a mounting shaft penetrates through a central circular hole of the turbine disc, and two sides of the turbine disc are fixed through limiting bolt rods respectively; moving the turbine disc and the heat treatment device to a heating cavity of a heat treatment system, wherein the mounting shaft is horizontal, and the disc surface of the turbine disc is vertical; finally, the heating chamber is closed and the heat treatment is started.
Further, the method comprises the following steps: after the heat treatment of the turbine disc in the heating cavity is completed, the turbine disc is moved out of the heating cavity together with the heat treatment device, and the turbine disc is detached from the heat treatment device.
The heat treatment method of the powder superalloy dual-performance turbine disc has the beneficial effects that: the turbine disk is placed in a mode that the disk surface is vertical, the sectional area of the turbine disk subjected to gravity is reduced, meanwhile, the heating conditions on the two sides of the turbine disk are basically the same, the temperature difference on the surface of the turbine disk is effectively reduced, and therefore the heating deformation of the turbine disk is reduced. The outside of installation axle forms at least one step face, and different process size cooperations when being applicable to turbine dish rough machining, semi-finishing and finish machining reduce frock quantity, practice thrift manufacturing cost.
Drawings
Fig. 1 is a schematic view of a turbine disk mounted on a heat treatment apparatus according to the present invention.
Fig. 2 is a side view of the heat treatment apparatus shown in fig. 1.
Fig. 3 is a top view of fig. 1.
Fig. 4 is a schematic structural view of the frame and the mount in fig. 1.
Fig. 5 is a side view of fig. 4.
Fig. 6 is a top view of fig. 4.
Fig. 7 is a cross-sectional schematic view of the mount of fig. 4.
Fig. 8 is a longitudinal sectional view of fig. 7 taken along the direction a-a.
Figure 9 is a schematic view of the mounting shaft and sling of figure 1.
Figure 10 is a schematic view of the sling construction of figure.
Fig. 11 is a left side view of fig. 10.
Fig. 12 is a schematic cross-sectional view of fig. 10.
Fig. 13 is a schematic view of the construction of the check bolt lever of fig. 1.
Fig. 14 is a schematic structural view of the suspension ring in fig. 1.
Fig. 15 is a cross-sectional schematic view of fig. 14.
FIG. 16 is a plan view of the platen of FIG. 2.
FIG. 17 is an elevational view of the platen of FIG. 2.
Fig. 18 is a schematic structural view of the strut in fig. 1.
Fig. 19 is a cross-sectional view of fig. 18.
Reference numerals are as follows: the lifting device comprises a frame 1, a rectangular frame 11, a reinforcing pipe 12, a mounting shaft 2, a limiting hole 21, a limiting bolt rod 3, a rod body 31, a rectangular plate 32, an anti-falling ring 33, a mounting seat 4, a through hole groove 41, a rectangular groove 42, a lifting ring 5, a screw rod 51, a circular ring 52, a lifting piece 6, a lifting hole 61, a spigot 62, a through hole 63, a cover plate 71, a pull rod 72 and a pressing rod 73.
Detailed Description
The invention will be further explained with reference to the drawings.
The heat treatment device is used for installing and fixing the product to be subjected to heat treatment, and then the product and the heat treatment device are subjected to heat treatment together, so that the product is heated in a proper posture, and the qualification rate of the product is improved.
Referring to fig. 1-3, the heat treatment device comprises a frame 1, a mounting shaft 2 and a limiting bolt 3, wherein two opposite sides of the frame 1 are respectively and fixedly provided with a mounting seat 4, the mounting seats 4 are provided with through hole grooves 41, and two ends of the mounting shaft 2 are respectively placed in the two through hole grooves 41. The two through-hole slots 41 are of equal height relative to the support surface of the bottom of the frame 1. The support surface at the bottom of the frame 1 refers to the plane on which the frame 1 is placed, and when the frame 1 is placed on a horizontal ground, the two through-hole grooves 41 have the same height relative to the ground, so as to ensure that the installation shaft 2 is horizontal.
The frame 1 plays a supporting role and can be made of metal materials or other high-temperature resistant materials. For example, referring to fig. 1 to 6, the frame 1 includes three rectangular frames 11 and reinforcing pipes 12, the rectangular frames 11 are formed by welding square pipes, one rectangular frame 11 is horizontally arranged and is welded with one vertically arranged rectangular frame 11 on two sides, and the three rectangular frames 11 form a concave structure, that is, the frame 1 is in a U-shape or a concave shape in a side view, see fig. 1 and 4. When the heat treatment device is used for heat treatment of the disc, the height of the frame 1 is not lower than the radius of the disc, the width of the frame 1 is not smaller than the diameter of the disc, and the distance between the two vertically arranged rectangular frames 11 is adaptive to the length of the mounting shaft 2. In order to ensure the stability of the frame 1, a reinforcing pipe 12 is welded between the horizontally arranged rectangular frame 11 and the vertically arranged rectangular frame 11, and the reinforcing pipe 12 and the rectangular frame 11 form a triangle. For example, the reinforcing pipe 12 is formed at an acute angle of 50 ° with respect to the corresponding plane of the horizontally arranged rectangular frame 11. The top edges of the two rectangular frames 11 which are vertically arranged are provided with the mounting seats 4, and the mounting seats 4 are fixed in the middle of the top edges of the rectangular frames 11 through bolts or welding. The mount pad 4 sets up the through-hole groove 41 that is used for placing installation axle 2, and in order to make things convenient for installation axle 2 to put into through-hole groove 41 and take out from through-hole groove 41, the opening of through-hole groove 41 faces up, and through-hole groove 41 is the U type. The through-hole slots 41 are U-shaped, i.e. the upper part of the through-hole slots 41 is rectangular, the lower part is semicircular, and the upper part and the lower part have a smooth transition, see fig. 5 and 8.
The frame 1 can be directly hoisted through a lifting rope, or the frame 1 is provided with structures such as a lifting ring, a lifting lug and the like for hoisting. For example, referring to fig. 3 and 5, through holes are respectively formed at two ends of the top edges of two vertically arranged rectangular frames 11, and the hanging rings 5 are installed in the through holes. As shown in fig. 14, the hanging ring 5 comprises a screw 51 and a ring 52, the screw 51 and the ring 52 are fixedly connected, and the screw 51 is inserted into the through hole of the rectangular frame 11 and fixed by a nut, see fig. 2. In order to ensure the stability of the hanging ring 5, the screw 51 can be fixed by a spring washer and a double nut. In order to facilitate installation and ensure stable connection, a circular step is arranged at the joint of the circular ring 52 and the screw 51, and the outer diameter of the step is larger than the diameter of the through hole of the rectangular frame 11.
The installation axle 2 is hollow tubular structure, also is hollow thin-walled structure, and the installation axle 2 is inside to form the cavity. The installation shaft 2 penetrates and fixes the product to be heat-treated, and the two ends of the installation shaft 2 are respectively placed in the two through hole grooves 41. In order to adapt to products with different specifications, at least one step surface is formed on the outer side of the mounting shaft 2, namely the outer diameters of the mounting shaft 2 are at least two, and the mounting shaft 2 is formed into step surfaces with different sizes through the change of the outer diameters. The middle part of installation axle 2 sets up two sets of at least spacing holes 21, and every spacing hole 21 of group is two, and the line of every group through-hole is parallel to each other and through the axis of installation axle 2. The limiting hole 21 is arranged between two positions where the mounting shaft 2 is matched with the through hole groove 41. The limiting hole 21 is used for placing the limiting bolt 3 so as to fix a product to be subjected to heat treatment, and the limiting hole 21 is also a passage for introducing hot air into the inner cavity of the mounting shaft 2.
Spacing bolt 3 is two at least, and spacing bolt 3 is inserted in each group's through-hole of installation axle 2, carries on spacing fixedly to the product from the both sides of product. The upper end of the limiting bolt 3 is provided with an expanding structure, the size of the expanding structure is larger than that of the limiting hole 21, and the limiting bolt 3 is prevented from falling from the limiting hole 21 of the mounting shaft 2. For example, referring to fig. 13, the rod 31 of the limit bolt 3 is cylindrical, the upper end of the rod 31 is a diameter-expanded structure formed by a rectangular plate 32, the width of the rectangular plate 32 is larger than the diameter of the rod 31, the lower end of the rod 31 is provided with a through hole, a release-preventing ring 33 is installed in the through hole, and the release-preventing ring 33 is a circular ring provided with an opening. Both ends of the limiting bolt 3 are locked, so that the product is ensured not to slide on the installation shaft 2. Specifically, the cross section of the rod 31 is a rod structure with a rectangular shape and a circular shape, and the through hole on the rod 31 is preferably a circular or elliptical through hole to better match with the anti-drop ring 33. The rectangular plate 32 is preferably flat and has a surface in planar contact with the product.
The mounting shaft 2 can be moved manually directly or by means of a lifting device. When installation axle 2 removed through overhead hoist, can directly carry out the handling to installation axle 2, perhaps set up hoist and mount piece 6 at installation axle 2, carry out the handling through hoist and mount piece 6. For example, referring to fig. 1, 3 and 9, the two ends of the mounting shaft 2 are fixedly connected with the sling 6 respectively. Referring to fig. 1 to 3 and 9 to 12, one end of the sling 6 is a plate-shaped structure and is provided with a sling hole 61, the other end of the sling 6 is a cylindrical structure and is provided with a spigot 62 at an opening end, the spigot 62 is used for being connected with the mounting shaft 2, the outer diameter of the spigot 62 is matched with the inner diameter of the end of the mounting shaft 2, and the spigot 62 is inserted into the end of the mounting shaft 2 and is welded and connected. To facilitate the gas flow in the lumen of the mounting shaft 2, the end of the cylindrical structure connected to the plate-like structure is provided with at least one through hole 63, in the illustrated embodiment two through holes for hot air circulation, see fig. 11 and 12.
The two mounting seats 4 are also respectively provided with a pressing mechanism for fixing the mounting shaft 2 to the through-hole groove 41. The pressing mechanism is used to lock the mounting shaft 2 in the through-hole groove 41. Referring to fig. 1 to 3, the pressing mechanism is a cover plate 71, one end of the cover plate 71 is provided with a connector and is rotatably connected to one side of the through hole groove 41 of the mounting base 4, and the other side of the through hole groove 41 is locked by a pull rod 72 and a press rod 73. Referring to fig. 16 to 17, the cover plate 71 includes a plate body and a connector disposed at one end of the plate body, an open slot is disposed at one end of the plate body away from the connector, the connector is located at one side of the plate surface of the plate body, the connector is semicircular, a through hole is disposed at the center of the circle, and the plate body and the connector are L-shaped. Two rectangular grooves 42 are respectively arranged on two sides of the through hole groove 41, the planes of the two rectangular grooves 42 are overlapped and perpendicular to the center line of the through hole groove 41, the width of one rectangular groove 42 is matched with the thickness of a connector of the cover plate 71, and the connector is placed in the rectangular groove 42 and connected through a pin; the width of the other rectangular groove 42 is matched with the thickness of the pull rod 72 and the width of an open groove of the cover plate 71, the pull rod 72 is of a long-strip oval structure, through holes are formed in two ends of the pull rod 72, one end of the pull rod 72 is placed in the rectangular groove 42 and connected through a pin, and the other end of the pull rod 72 is connected with the pressing rod 73. Referring to fig. 18 and 19, the pressing rod 73 is in a tuning fork structure, one end of the pulling rod 72 is located in the tuning fork structure and connected with the pressing rod 73 through a pin, one end of the pressing rod 73 connected with the pulling rod 72 is in a semicircular shape and provided with an eccentric hole, and the pin is located in the eccentric hole. The cover plate 71 can be pressed by operating the pressing rod 73. One end of the pressure lever 73 connected with the pull rod 72 forms an eccentric wheel, the eccentric wheel can rotate around the axis of the pin at the eccentric hole, when the eccentric wheel rotates around the pin, the round surface and the surface of the cover plate 71 are mutually extruded, and the extrusion force is larger when the eccentric wheel rotates more, so that the effect of locking the cover plate 71 is achieved.
The second theme of the invention is a powder superalloy dual-performance turbine disc heat treatment method, fix the turbine disc to the above-mentioned heat treatment plant first, wherein the mounting shaft 2 penetrates the central round hole of the turbine disc, both sides of the turbine disc are fixed through the spacing bolt 3 separately; then the turbine disc and the heat treatment device are moved into a heating cavity of the heat treatment system, wherein the mounting shaft 2 is horizontal, and the disc surface of the turbine disc is vertical; finally, the heating chamber is closed and the heat treatment is started.
After inserting a spacing bolt 3 in the spacing hole 21 that installation axle 2 corresponds, will install axle 2 and penetrate turbine disk's central round hole, then adjust turbine disk in the position of installation axle 2, insert another spacing bolt 3 again. Referring to fig. 1 and 3, the turbine disc is shown in phantom outside the mounting shaft 2. After the heat treatment of the turbine disc in the heating cavity is completed, the turbine disc is moved out of the heating cavity together with the heat treatment device, and the turbine disc is detached from the heat treatment device.
Claims (10)
1. A heat treatment apparatus, characterized in that: the device comprises a frame (1), a mounting shaft (2) and a limiting bolt (3), wherein two opposite sides of the frame (1) are respectively and fixedly provided with a mounting seat (4), the mounting seats (4) are provided with through hole grooves (41), and the heights of the two through hole grooves (41) relative to a supporting surface at the bottom of the frame (1) are equal; the mounting shaft (2) is of a hollow tubular structure, two ends of the mounting shaft (2) are respectively placed in the two through hole grooves (41), at least two groups of limiting holes (21) are arranged in the middle of the mounting shaft (2), and connecting lines of the limiting holes (21) are parallel to each other and pass through the axis of the mounting shaft (2); at least two limiting bolts (3) are arranged, one end of each limiting bolt (3) is provided with an expanding structure, the size of each expanding structure is larger than that of each limiting hole (21), and the limiting bolts (3) are inserted into the same group of limiting holes (21) of the mounting shaft (2); the two mounting seats (4) are also respectively provided with a pressing mechanism for fixing the mounting shaft (2) in the through hole groove (41).
2. The thermal processing apparatus of claim 1, wherein: the frame (1) comprises three rectangular frames (11) and three reinforcing pipes (12), wherein one rectangular frame (11) is horizontally arranged, the two vertically arranged rectangular frames (11) are respectively welded on two sides of the rectangular frame (11), the reinforcing pipes (12) are welded between the horizontally arranged rectangular frame (11) and the vertically arranged rectangular frame (11), and the reinforcing pipes (12) and the rectangular frames (11) form a triangle; the middle parts of the top edges of the two vertically arranged rectangular frames (11) are provided with mounting seats (4), the mounting seats (4) are provided with through hole grooves (41) with upward openings, and the through hole grooves (41) are U-shaped.
3. The thermal processing apparatus of claim 2, wherein: the both ends of the topside of two rectangle frames (11) of vertical arrangement set up the through-hole respectively, installation rings (5) in the through-hole, and rings (5) are including fixed connection's screw rod (51) and ring (52), and screw rod (51) are worn in the through-hole of rectangle frame (11) and are fixed through the nut, and the junction of ring (52) and screw rod (51) sets up circular step, and the external diameter of step is greater than the diameter of the through-hole of rectangle frame (11).
4. The thermal processing apparatus of claim 1, wherein: the installation axle (2) is hollow tubular structure, and the outside of installation axle (2) forms at least one step face, and the both ends of installation axle (2) are fixed connection hoist and mount piece (6) respectively.
5. The thermal processing apparatus of claim 4, wherein: one end of the hoisting piece (6) is of a plate-shaped structure and is provided with a hoisting hole (61), the other end of the hoisting piece is of a cylindrical structure and is provided with a spigot (62) at the opening end, the outer diameter of the spigot is matched with the inner diameter of the end part of the mounting shaft (2), the spigot is inserted into the end part of the mounting shaft (2) and is welded and connected with the end part of the mounting shaft, and one end of the cylindrical structure, which is connected with the plate-shaped structure, is provided with at least one through hole (63).
6. The thermal processing apparatus of claim 1, wherein: the rod body (31) of the limiting bolt (3) is cylindrical, one end of the rod body (31) is of an expanding structure formed by the rectangular plate (32), the width of the rectangular plate (32) is larger than the diameter of the rod body (31), the other end of the rod body (31) is provided with a through hole, an anti-falling ring (33) is installed in the through hole, and the anti-falling ring (33) is a circular ring with an opening.
7. The heat treatment apparatus according to any one of claims 1 to 6, wherein: the pressing mechanism is a cover plate (71), one end of the cover plate (71) is provided with a connector and is rotatably connected to one side of a through hole groove (41) of the mounting seat (4), the other side of the through hole groove (41) is connected with one end of a pull rod (72), the other end of the pull rod (72) is connected with a pressing rod (73), the pressing rod (73) is in a tuning fork structure, the pull rod (72) is located in the tuning fork structure and is connected with the pressing rod (73) through a pin, one end, connected with the pull rod (72), of the pressing rod (73) is in a semicircular shape and is provided with an eccentric hole, and the pin is located in the eccentric hole.
8. The thermal processing apparatus of claim 7, wherein: two rectangular grooves (42) are respectively arranged on two sides of the through hole groove (41) of the mounting seat (4), the planes of the two rectangular grooves (42) are overlapped and perpendicular to the central line of the through hole groove (41), the connecting head of the cover plate (71) is inserted into one rectangular groove (42) and connected through a pin, and one end of the pressing rod (73) is inserted into the other rectangular groove (42) and connected through a pin.
9. The heat treatment method of the powder superalloy dual-performance turbine disc is characterized by comprising the following steps: fixing a turbine disc on the heat treatment device according to any one of claims 1 to 8, wherein a mounting shaft (2) penetrates through a central circular hole of the turbine disc, and two sides of the turbine disc are respectively fixed through limiting bolts (3); then the turbine disc and the heat treatment device are moved into a heating cavity of the heat treatment system, wherein the mounting shaft (2) is horizontal, and the disc surface of the turbine disc is vertical; finally, the door of the heating chamber is closed and the stabilization heat treatment is started.
10. The method for heat treating a powder superalloy dual performance turbine disk of claim 9, wherein: after the heat treatment of the turbine disc in the heating cavity is completed, the turbine disc is moved out of the heating cavity together with the heat treatment device, and the turbine disc is detached from the heat treatment device.
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| CN202210906663.4A CN115125382B (en) | 2022-07-29 | 2022-07-29 | Heat treatment device and heat treatment method for powder superalloy dual-performance turbine disk |
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| CN202210906663.4A CN115125382B (en) | 2022-07-29 | 2022-07-29 | Heat treatment device and heat treatment method for powder superalloy dual-performance turbine disk |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116441939A (en) * | 2023-04-29 | 2023-07-18 | 无锡派鑫航空科技有限公司 | Manufacturing method of large-sized superalloy gas turbine disc |
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| CN115125382B (en) | 2024-01-23 |
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