Novel ingot mould tool for casting

Abstract

The utility model relates to a novel ingot mould tool for casting, which comprises a shunting module and a steel mould module, the shunting module comprises a tundish and a shunting disc connected to the outlet end of the tundish, and the shunting disc is provided with shunting holes; and the steel mold module comprises a plurality of sets of molds and supporting parts used for supporting the molds, the molds are constructed to be of hollow pipe structures, and inlets of the molds correspond to the flow dividing holes. According to the novel ingot mould tool for casting, a novel structure is adopted, a plurality of sets of mother alloy can be formed at a time, a mould of the novel ingot mould tool is changed into an integrally-formed hollow pipe from a traditional mould closing mode, the phenomenon of excessive flash of the mother alloy can be effectively avoided, meanwhile, in an existing novel tool structure, a supporting part of a frame structure is adopted in a steel mould module, and the number of the supporting parts is small. And in addition, the detachable movable fence is adopted in the supporting part, so that the mold is more convenient to disassemble and assemble.

Description

Technical Field

[0001] The utility model relates to the technical field of alloy casting, in particular to a new ingot mold tooling for casting. Background Art

[0002] High-temperature alloys have good high-temperature strength and anti-oxidation and anti-corrosion properties, as well as excellent anti-fatigue and anti-creep properties, fracture properties and structural stability. They play a vital role in the fields of aero engines and industrial gas turbines. Turbine blades, guide vanes, turbine discs, combustion chambers and other parts are almost all made of high-temperature alloys. Due to the excellent performance of high-temperature alloys, the demand is relatively large both at home and abroad, and the surface quality requirements of the master alloy are high. Ingot molds are required when casting high-temperature alloy master alloys. After baking, the ingot mold flows into the steel mold group through the tundish diverter plate to form an ingot. Traditional ingot molds such as Figure 7 As shown, the number of molds formed at one time is small, the ingot mold tooling is difficult to hoist, and the assembly and disassembly are also troublesome due to the mold structure. In addition, the ingots formed by the mold group have burrs due to loose mold clamping, and the surface quality is relatively poor. At the same time, the burrs phenomenon will make it difficult to disassemble the tooling or demold, which brings great trouble to the subsequent processing steps. Utility Model Content

[0003] The purpose of the utility model is to provide a new ingot mold tooling for casting, so as to at least partially solve the technical problems mentioned in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a new ingot mold tooling for casting, including a diverter module and a steel liquid module, the diverter module includes a tundish and a diverter plate connected to the outlet end of the tundish, and the diverter plate is provided with diverter holes; a steel mold module, including several groups of molds and a supporting part for supporting the molds, the molds are constructed as a hollow tube structure, and the inlet of the mold corresponds to the diverter hole.

[0005] In one embodiment, the diverter module further includes an anti-crack frame, which includes a first frame and a second frame respectively matching the shapes of the diverter plate and the tundish. The anti-crack frame is used to prevent the tundish and the diverter plate from cracking during the pouring process, thereby affecting the pouring process of the master alloy.

[0006] In one embodiment, the support portion includes a support bottom plate, a support top frame, and support columns connected between the support bottom plate and the support top frame. The mold is connected to the support bottom plate, and its top end extends out of the support top frame and is engaged with the diversion hole.

[0007] In one embodiment, the support portion further includes a limit plate connected to the support top frame, the limit plate is provided with a through hole for the mold to pass through, and the limit plate is used to limit the position of the mold to prevent it from shaking.

[0008] In one embodiment, the support portion further includes a limiting circular block connected to the top surface of the support bottom plate, the outer diameter of the limiting circular block matches the inner diameter of the mold, and the limiting circular block is used to limit the bottom end of the mold.

[0009] In one embodiment, the supporting top frame is formed by connecting four groups of square tubes, and at least one group of square tubes is constructed as a detachable fence structure to facilitate the assembly and disassembly of the internal mold.

[0010] In one embodiment, the detachable fence includes a tube body and an L-shaped plug-in fixedly connected to both ends of the tube body, an insertion gap is reserved between the L-shaped plug-in and the tube body, and the insertion gap cooperates with the side of the supporting column.

[0011] In one embodiment, a fiber cap is connected to the top of the hollow tube, the bottom of the fiber cap is inserted into the hollow tube, a fiber blanket is laid on the top of the fiber cap, the top surface of the fiber blanket is attached to the bottom surface of the diverter plate, and the fiber blanket is provided with a liquid guide hole corresponding to the diverter hole. The structure formed by the fiber cap is the riser of each mother alloy, and the fiber cap can also prevent the mold from loosening and deviating during the hoisting and pouring process, and the fiber blanket can also protect the bottom surface of the diverter plate.

[0012] In one embodiment, the support portion is fixedly connected with lifting ears on all sides to facilitate the lifting of the ingot mold tooling.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: a new ingot mold tooling for casting provided by the utility model adopts a new structure, which can form multiple groups of master alloys at one time, and its mold is changed from a traditional combined mold to an integrally formed hollow tube, which can effectively avoid the occurrence of bursting in the master alloy. At the same time, in the existing new tooling structure, a frame structure support part is adopted in the steel mold module, which makes assembly and disassembly more convenient, and a detachable movable fence is adopted in the support part, which makes it easier to disassemble and assemble the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of a new ingot mold tooling for casting in an embodiment of the utility model;

[0015] Figure 2 An exploded view of a new ingot mold tooling for casting in an embodiment of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the anti-crack frame in the embodiment of the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the support part in the embodiment of the utility model;

[0018] Figure 5 This is a schematic diagram of the structure of a detachable fence in an embodiment of the utility model;

[0019] Figure 6 It is a schematic diagram of the cooperation between the mold and the fiber cap in the embodiment of the utility model;

[0020] Figure 7 A top view of a traditional ingot mold tooling.

[0021] The meaning of each number in the figure is:

[0022] 1. Diverter module; 11. Tundish; 12. Diverter plate; 13. Diverter hole; 14. Anti-crack frame; 141. First frame; 142. Second frame; 2. Steel mold module; 21. Mold; 22. Support part; 221. Support bottom plate; 222. Support column; 223. Support top frame; 224. Limit plate; 225. Limit round block; 226. Removable fence; 2261. Pipe body; 2262. L-shaped plug-in; 3. Lifting ear; 4. Fiber blanket; 5. Fiber cap. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0025] See also Figure 1-Figure 2 This embodiment discloses a new ingot mold tooling for casting, including a diverter module 1 and a steel mold module 2 connected thereto, the steel mold module 2 includes a plurality of molds 21, and the molten steel is diverted through the diverter module 1 to the molds 21 of the steel mold module 2 to form an ingot.

[0026] The flow diversion module 1 includes a tundish 11 and a diversion plate 12 connected to the outlet end of the tundish 11. The diversion plate 12 is provided with a diversion hole 13, and the diversion hole 13 corresponds to the inlet of the mold 21 of the steel mold module 2. Preferably, a filter is provided in the tundish 11 to prevent debris in the molten steel from clogging the diversion hole 13. During pouring, the molten steel first flows into the tundish 11 with a filter, flows into the inlet of the diversion plate 12 through the filter, and is orderly diverted by the diversion plate 12 to each mold 21.

[0027] In one embodiment, in order to prevent the tundish 11 and the diverter plate 12 from cracking during the pouring process and affecting the pouring process of the master alloy, the diverter module 1 further includes an anti-crack frame 14, such as Figure 3 As shown, the anti-crack frame 14 includes a first frame 141 and a second frame 142. The first frame 141 is constructed as a frame structure that matches the shape of the diverter plate 12. The bottom edge of the first frame 141 extends inward to form a supporting edge for supporting the diverter plate 12. The diverter plate 12 is located in the first frame 141, and the outer wall of the diverter plate 12 is attached to the inner wall of the first frame 141. It should be noted that the width of the supporting edge needs to be set according to the range of the diverter hole 13 to avoid the diverter hole 13. The second frame 142 corresponds to the position of the tundish 11 and matches the shape of the tundish 11. For example, the second frame 142 can be connected to the top of the first frame 141. During operation, the tundish 11 is placed in the enclosed range of the second frame 142, and the outer wall of the tundish 11 is attached to the inner wall of the second frame 142. The anti-crack frame 14 covers the tundish 11 and the diverter plate 12, so that even if cracks occur during operation, normal operation will not be affected. The anti-crack frame 14 can also limit the positions of the tundish 11 and the diverter plate 12. To ensure the overall strength and stability of the anti-crack frame 14, in this embodiment, the first frame 141 and the second frame 142 are preferably integrally formed and connected.

[0028] Combination Figure 3The steel mold module 2 includes a support portion 22 for supporting the mold 21. In this embodiment, the support portion 22 is constructed as a support frame structure in a rectangular body, and the mold 21 is placed within the support frame. Specifically, the support portion 22 includes a support bottom plate 221 in a rectangular structure, a support top frame 223 in a rectangular structure, and four groups of support columns 222 connected between the support bottom plate 221 and the support top frame 223. The length and width specifications of the support bottom plate 221 can be specifically set according to actual production requirements, workload and specifications of the mold 21. The support column 222 is preferably a high-strength, high-rigidity and light-weight steel structure, which is convenient for connection with the support bottom plate 221 and the support top frame 223. The connection method of the support column 222 and the support bottom plate 221 can be bolted, welded, clamped, etc., and can be selected according to actual needs. To ensure the connection strength, welding is usually preferred. The support top frame 223 is connected by four groups of square tubes to form an enclosure structure, and the square tube is also preferably a steel structure.

[0029] like Figure 1 , Figure 2 As shown, illustratively, the number of molds 21 is 12 groups, but the number of molds 21 is not limited thereto and can be set to other numbers according to the operation requirements. In this embodiment, the mold 21 is constructed as a hollow tube structure, and multiple groups of hollow tube molds 21 are evenly distributed on the support bottom plate 221. The top ends of the hollow tube molds 21 extend above the support top frame 223 and are respectively connected to the diverter holes 13 of the diverter plate 12. Correspondingly, the number and position of the diverter holes 13 in the diverter plate 12 correspond to the mold 21. In this embodiment, by setting the mold 21 as an integrally formed hollow tube structure, the front-burst phenomenon that occurs in traditional combined mold casting can be avoided, and the step of assembling the mold 21 can be eliminated.

[0030] The mold 21 may be displaced or tilted during the movement of the ingot mold tooling, so that the diverter hole 13 of the diverter plate 12 is not centered with the mold 21. To ensure the stable setting of the mold 21, the support part 22 further includes a limit plate 224 mounted on the support top frame 223. The limit plate 224 is provided with a through hole for the mold 21 to pass through. The diameter of the through hole matches the outer diameter of the mold 21. The position of the mold 21 can be limited by the limit plate 224 to prevent it from shaking. Preferably, the support part 22 also includes a limit round block 225 fixedly connected to the top surface of the support bottom plate 221. The limit round block 225 is used to limit the bottom end of the mold 21. The number and position of the limit round block 225 correspond to the mold 21, and the outer diameter of the limit round block 225 matches the inner diameter of the mold 21. In this embodiment, the limit plate 224 and the limit round block 225 are respectively limited at the upper and lower ends of the mold 21, which can further improve the stability of the mold 21.

[0031] In a preferred embodiment, in order to facilitate the assembly and disassembly of the internal mold 21, the support frame 223 is constructed as a detachable structure. Specifically, in the support frame 223, at least one group of square tubes is constructed as a detachable fence 226 structure, which is detachably connected between the corresponding two support columns 222, and the other square tubes in the support frame 223 are fixedly connected between the corresponding support columns 222. More specifically, Figure 5 As shown, the detachable fence 226 includes a tube body 2261 and L-shaped plugs 2262 fixedly connected to both ends of the tube body 2261. An insertion gap is reserved between the L-shaped plug 2262 and the tube body 2261. When assembling, the detachable fence 226 is inserted into one side of the support column 222 through the insertion gap. It can be understood that in other embodiments not shown, the four groups of square tubes of the support top frame 223 can also be connected between the corresponding two support columns 222 by bolt connection, clamping or other detachable methods.

[0032] Combination Figure 1 , Figure 2 as well as Figure 6 In a preferred embodiment, the top of the hollow tube mold 21 is also connected to a fiber cap 5, the bottom outer diameter of the fiber cap 5 matches the inner diameter of the hollow tube mold 21, and is inserted into the hollow tube mold 21. The top of the fiber cap 5 is paved with a fiber blanket 4, the top surface of the fiber blanket 4 is attached to the bottom surface of the diverter plate 12, and the fiber blanket 4 is provided with a liquid guide hole corresponding to the diverter hole 13. In this embodiment, the fiber cap 5 plays a shrinkage compensation role, and the structure formed at the fiber cap 5 is the riser of each mother alloy. The fiber cap 5 can also prevent the mold 21 from loosening and deviating during the hoisting and pouring process, and the fiber blanket 4 can also protect the bottom surface of the diverter plate 12. On the other hand, due to the high specific gravity of the molten steel, it is very easy to overflow from between the diverter plate 12 and the hollow tube mold 21. The cooperation of the fiber cap 5 and the fiber blanket 4 can also prevent the molten steel from overflowing.

[0033] In order to facilitate the lifting of the ingot mold tooling, lifting ears 3 are fixedly connected around the supporting part 22.

[0034] Before using the new ingot mold tooling of the present embodiment for pouring, first assemble the tundish 11, the diverter plate 12 and the steel mold module 2 to form an ingot mold tooling, and bake and keep warm in a resistance furnace for more than 2 hours. After the ingot mold tooling is baked, the ingot mold tooling is hoisted to the melting chamber for pouring. During pouring, the molten steel first flows into the tundish 11 with a filter, flows into the inlet of the diverter plate 12 through the filter, and is orderly diverted into each mold 21 by the diverter plate 12, and then vacuum cooled for more than 30 minutes, and then the ingot mold tooling is hoisted out of the melting chamber and air-cooled to room temperature, and then the ingot mold tooling is disassembled. The steel ingot with larger shrinkage can be removed from the mold 21 by itself or assisted by a steel lifting machine.

[0035] In order to intuitively compare the alloy casting quality of the new ingot mold tooling provided in this embodiment and the traditional ingot mold tooling, the new ingot mold tooling provided in this embodiment and the traditional ingot mold tooling are used for alloy casting. The cast alloy is the same grade of precipitation-strengthened nickel-based high-temperature alloy GH4169. Table 1 is a comparison of the quality of the high-temperature alloy master alloy after casting using the two toolings:

[0036] Table 1 Quality comparison

[0037]

[0038] According to the data in Table 1, the improved new ingot mold tooling not only increases the number of master alloys that can be formed at one time, but also avoids the surface of the master alloy after forming due to mold closing. It is easier to demold than traditional tooling, effectively improving the surface quality of the master alloy and the assembly and disassembly efficiency.

[0039] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A new ingot mold tooling for casting, characterized in that: include: A flow distribution module (1) comprises a tundish (11) and a flow distribution plate (12) connected to the outlet end of the tundish (11), wherein the flow distribution plate (12) is provided with a flow distribution hole (13); The steel mold assembly (2) comprises a plurality of groups of molds (21) and a support portion (22) for supporting the molds (21). The molds (21) are constructed as hollow tube structures, and the inlet of the molds (21) corresponds to the diversion hole (13).

2. The new ingot mold tooling for casting according to claim 1 is characterized in that: The flow distribution module (1) further comprises an anti-crack frame (14), wherein the anti-crack frame (14) comprises a first frame (141) and a second frame (142) respectively matching the shapes of the flow distribution plate (12) and the tundish (11).

3. The new ingot mold tooling for casting according to claim 1 is characterized in that: The support portion (22) comprises a support base plate (221), a support top frame (223), and a support column (222) connected between the support base plate (221) and the support top frame (223); the mold (21) is connected to the support base plate (221), and its top end extends out of the support top frame (223) and is engaged with the diversion hole (13).

4. The new ingot mold tooling for casting according to claim 3 is characterized in that: The support portion (22) further comprises a limiting plate (224) connected to the supporting top frame (223), and the limiting plate (224) is provided with a through hole for allowing the mold (21) to pass through.

5. The new ingot mold tooling for casting according to claim 3 is characterized in that: The support portion (22) further comprises a limiting circular block (225) connected to the top surface of the supporting bottom plate (221), and the outer diameter of the limiting circular block (225) matches the inner diameter of the mold (21).

6. The new ingot mold tooling for casting according to claim 3 is characterized in that: The supporting top frame (223) is formed by connecting four groups of square tubes, and at least one group of square tubes is constructed as a detachable fence (226) structure.

7. The new ingot mold tooling for casting according to claim 6 is characterized in that: The detachable fence (226) includes a tube body (2261) and an L-shaped plug-in (2262) fixedly connected to both ends of the tube body (2261), and an insertion gap is reserved between the L-shaped plug-in (2262) and the tube body (2261), and the insertion gap cooperates with the side of the supporting column (222).

8. The new ingot mold tooling for casting according to claim 1 is characterized in that: The top end of the mold (21) is connected to a fiber cap (5), the bottom of the fiber cap (5) is inserted into the mold (21), the top end of the fiber cap (5) is covered with a fiber blanket (4), the top surface of the fiber blanket (4) is attached to the bottom surface of the diversion plate (12), and the fiber blanket (4) is provided with a liquid guide hole corresponding to the diversion hole (13).

9. The new ingot mold tooling for casting according to claim 1, characterized in that: The supporting portion (22) is fixedly connected with lifting ears (3) on all sides.

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