CN110883315B - Bottom pouring type pouring system of guider - Google Patents
Bottom pouring type pouring system of guider Download PDFInfo
- Publication number
- CN110883315B CN110883315B CN201911049341.7A CN201911049341A CN110883315B CN 110883315 B CN110883315 B CN 110883315B CN 201911049341 A CN201911049341 A CN 201911049341A CN 110883315 B CN110883315 B CN 110883315B
- Authority
- CN
- China
- Prior art keywords
- pouring
- communicated
- cross
- filling
- formwork
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/08—Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
- B22C9/082—Sprues, pouring cups
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention discloses a guider bottom pouring type pouring system, which comprises: the sprue cup, the lower extreme intercommunication of sprue cup has the sprue of vertical setting, and the bottom intercommunication of sprue has the horizontal runner assembly of laying horizontally, and the horizontal runner assembly is used for filling by the sprue to fill type liquid and shunts, keep off the sediment to the contained sediment thing that is mingled with in making filling type liquid is stayed in the horizontal runner assembly, and the horizontal runner assembly still is used for filling type liquid and rectifies so that to fill the stable type that fills of type liquid. The cross pouring channel assembly is communicated with a filling pouring channel assembly, the filling pouring channel assembly is positioned above the cross pouring channel assembly and is respectively arranged on the inner side of the inner ring formwork shell and the outer side of the outer ring formwork shell of the guider formwork shell, and the filling pouring channel assembly is respectively communicated with the inner ring formwork shell and the outer ring formwork shell, so that filling liquid after slag blocking and rectification in the cross pouring channel assembly is stably filled into the inner ring formwork shell and the outer ring formwork shell through the filling pouring channel assembly.
Description
Technical Field
The invention relates to the technical field of precision casting, in particular to a guider bottom pouring type pouring system.
Background
The existing pouring system of the precision casting guider mostly adopts a top pouring type or a top side pouring type (such as the pouring system of a whole casting guider in a patent 201710103137.3) or a top-bottom mixing type (such as the bottom pouring type pouring system and the pouring method of a vertical guider in a patent 201810663928.6), and high-temperature mold filling liquid fills from top to bottom to directly wash a mold shell of a casting of the guider.
Because the switching R positions of the inner ring and the blade body and the switching R positions of the outer ring and the blade body of the casting mold shell are shell type weak areas and are directly washed by mold filling liquid, slag inclusion is easily generated, the slag inclusion is mostly concentrated in the middle of the blade body or the switching R positions after the mold filling liquid is filled, and the positions have low repair welding success rate, so that a large amount of castings are scrapped, and the bottleneck problem of restricting the increase of the qualification rate of the precision casting integral guider is the slag inclusion problem at present;
the casting mould shell is directly connected with the pouring cup through a plurality of bent bow pouring channels or straight pouring channels which are positioned above the casting mould shell, and as the casting mould shell is filled with the mold liquid and is solidified, the pouring channels and the pouring cup are filled with the mold liquid and then are solidified, and the solidified and formed casting is influenced by the solidification shrinkage and pulling in the pouring channels and the pouring cup along with the solidification, the casting has the buckling deformation phenomenon, and the plane jumping degree of the casting is large;
the exhaust edge of the integral precision casting guider is light and thin, and the heat dissipation rate is high, so that the temperature gradient at the exhaust edge is high, and columnar crystals vertical to the exhaust edge are easily generated after casting, so that parts are seriously scrapped.
Disclosure of Invention
The invention provides a guider bottom pouring type pouring system, which solves the technical problems that a casting is easy to clamp slag, the plane runout degree of the casting is large, and the casting is easy to generate columnar crystals vertical to an exhaust edge of the casting in the existing pouring system.
The technical scheme adopted by the invention is as follows:
a director bottom pouring type gating system is used for filling a director formwork which is arranged in a mode that an exhaust edge of a blade body formwork is arranged in an inverted mode downwards so as to enable an integral precision casting director to be formed in the director formwork, and comprises: the sprue cup is communicated with a vertically arranged sprue at the lower end of the sprue cup, the bottom end of the sprue is communicated with a horizontally arranged cross gate assembly, the cross gate assembly is used for distributing and blocking slag of the mold filling liquid filled by the sprue so as to enable slag inclusions in the mold filling liquid to be retained in the cross gate assembly, and the cross gate assembly is also used for rectifying the mold filling liquid so as to enable the mold filling liquid to be stably filled; the cross pouring channel assembly is communicated with a filling pouring channel assembly, the filling pouring channel assembly is positioned above the cross pouring channel assembly and is respectively arranged on the inner side of an inner ring formwork shell and the outer side of an outer ring formwork shell of the guider formwork shell, and the filling pouring channel assembly is respectively communicated with the inner ring formwork shell and the outer ring formwork shell, so that filling liquid after slag blocking and rectification in the cross pouring channel assembly is stably filled into the inner ring formwork shell and the outer ring formwork shell through the filling pouring channel assembly.
Further, the upper end of the sprue is in smooth transition connection with the lower end of the sprue cup; the inner runner of the sprue is an inner circular conical channel with the diameter gradually reduced along the flowing direction of the mold filling liquid.
Furthermore, the cross gate assembly comprises a plurality of cross gates for distributing, blocking slag and stabilizing the filling liquid filled by the sprue, and the cross gates are radially and horizontally distributed at the periphery of the sprue; the inflow end of the horizontal pouring gate is vertically communicated with the straight pouring gate, and the outflow end of the horizontal pouring gate extends upwards along the radial direction of the straight pouring gate; the filling pouring channel assembly is respectively communicated with a plurality of cross pouring channels.
Furthermore, the mold filling pouring gate assembly comprises mold filling pouring gate groups which are arranged corresponding to the cross pouring gates, and each mold filling pouring gate group comprises an inner ring pouring gate for filling the inner ring formwork and an outer ring pouring gate for filling the outer ring formwork; the inflow end of the inner ring pouring channel is communicated with the correspondingly arranged cross pouring channel, and the outflow end of the inner ring pouring channel is communicated with the inner ring formwork; the inflow end of the outer ring runner is communicated with the corresponding cross runner, and the outflow end of the outer ring runner is communicated with the outer ring formwork.
Further, the cross gate assembly comprises a rectifying disc and a plurality of cross gates, wherein the rectifying disc is used for shunting, blocking slag and stabilizing the filling liquid filled by the straight gates; the rectifying disc is horizontally arranged below the sprue in a disc shape and is communicated with the outflow end of the sprue; the plurality of cross runners are radially arranged on the periphery of the rectifying disc, the inflow end of each cross runner is communicated with the rectifying disc, and the outflow end of each cross runner extends along the radial direction of the rectifying disc; the filling pouring channel assembly is respectively communicated with a plurality of cross pouring channels.
Furthermore, the mold filling pouring gate assembly comprises mold filling pouring gate groups which are arranged corresponding to the cross pouring gates, and each mold filling pouring gate group comprises an inner ring pouring gate for filling the inner ring formwork and an outer ring pouring gate for filling the outer ring formwork; the inflow end of the inner ring pouring channel is communicated with the rectifying disc, and the outflow end of the inner ring pouring channel is communicated with the inner ring formwork; the inflow end of the outer ring runner is communicated with the corresponding cross runner, and the outflow end of the outer ring runner is communicated with the outer ring formwork.
Furthermore, an outer boss protruding outwards towards the blade body formwork is arranged on the cross gate corresponding to the exhaust edge of the blade body formwork, and the outer boss is communicated with the cross gate and used for further blocking slag and stabilizing flow of mold filling liquid in the cross gate and also used for carrying out radiation heating on the exhaust edge of the blade body formwork above the outer boss.
Furthermore, the inner ring pouring gate comprises an inner vertical pouring gate vertically communicated with the horizontal pouring gate or the rectifying disc, and an inner casting head communicated with the outflow end of the inner vertical pouring gate, and the outflow end of the inner casting head is communicated with the inner ring formwork; the outer ring runner comprises an outer vertical runner vertically communicated with the horizontal runner and an outer casting head communicated with the outflow end of the outer vertical runner, and the outflow end of the outer casting head is communicated with the outer ring formwork.
Furthermore, the distance between the cross gate assembly and the exhaust edge of the blade shell mould shell is 10-40 mm.
Furthermore, the guider bottom pouring type pouring system further comprises an exhaust rod used for exhausting, one end of the exhaust rod is communicated with the mold filling pouring gate assembly, and the other end of the exhaust rod is communicated with the pouring cup.
The invention has the following beneficial effects:
when the guider bottom pouring type pouring system works, the whole mold filling liquid is filled from top to bottom through a pouring cup, a sprue and a sprue assembly, and then is filled from bottom to top through a sprue assembly, a mold filling runner assembly and a guider mould shell, and because the mold filling liquid does not directly fill the mold towards the guider mould shell in the whole mold filling process, but flows into the sprue assembly from top to bottom and flows into the guider mould shell from bottom to top after the functions of scum, slag blocking and rectification, and then flows into the guider mould shell from bottom to top for filling, and because casting slag inclusion objects are generally lighter than the mold filling liquid, when the mold filling liquid flows through the pouring cup and the sprue, the slag inclusion objects brought and/or generated by flowing of the mold filling liquid can be attached to the upper wall surface of a runner in the sprue wall hanging assembly due to the scum effect, so that the scum and slag blocking effects on the slag inclusion objects can be achieved;
when filling, if filling liquid directly fills from a pouring cup to a sprue without a rectification process, the inner ring formwork and the outer ring formwork are directly filled, the filling speed is high, the filling liquid is disordered, the R-connection positions of the inner ring formwork and the blade body formwork and the R-connection positions of the outer ring formwork and the blade body formwork are all the formwork weak areas, and the protrusions at the R-connection positions are not completely removed in the formwork manufacturing stage, the quality of the formwork is difficult to ensure, the high-speed filling liquid easily washes the shell and removes slag, and the slag particles easily enter the blade body formwork along the filling liquid The joint R of the outer ring mould shell and the blade mould shell is washed by high-speed mold filling liquid to generate the risk of slag falling;
the integral precision casting guider mould shell generally comprises dozens of blade mould shells with thin exhaust edges, the problem of under-casting caused by the fact that the exhaust edges are not full of filling is common to the type of guider, and different from the traditional guider with the exhaust edges placed upwards, in the guider bottom pouring type pouring system, the exhaust edges of the blade mould shells are arranged downwards in an inverted mode, so that the air inlet edges of the thick blade mould shells can be used for feeding the light and thin exhaust edges to form a feeding sequence from top to bottom, and the exhaust edges of the blade mould shells are prevented from being under-cast; on the other hand, the cross gate assembly positioned below the blade body formwork is a main inlet for filling liquid, so that the temperature is high, heat radiation is generated to heat the exhaust edge, the filling of the exhaust edge is ensured, the heat dissipation rate of the exhaust edge is reduced, and the generation of columnar crystals is inhibited;
the integral precision casting type guider has the advantages that the diameter-height ratio of parts is large, the integral part is almost a large plane, the defects of large plane runout degree, difficulty in ensuring ellipticity and the like generally exist, the defects are mainly formed because a guider mould shell in a casting system is directly connected with a sprue cup through a sprue or a side runner, the sprue cup is finally solidified along with the solidification, and a casting is easy to pull and deform under the influence of the solidification of the sprue cup.
In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a front view of a director bottom pouring type gating system according to a preferred embodiment of the present invention.
Description of the figures
10. A director form; 11. an inner ring formwork; 12. an outer ring formwork; 13. a blade shell mold; 20. a pouring cup; 30. a sprue; 40. a cross runner assembly; 41. a cross gate; 50. a mold-filling pouring channel assembly; 51. an inner ring runner; 511. an inner vertical pouring gate; 512. internal casting heads; 52. an outer ring runner; 521. an outer vertical pouring channel; 522. casting a dead head outside; 60. an exhaust bar.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the accompanying drawings, but the invention can be embodied in many different forms, which are defined and covered by the following description.
Referring to fig. 1, a preferred embodiment of the present invention provides a director bottom pouring type gating system for filling a director form 10 disposed upside down with a discharge edge of a blade form 13 facing downward so as to mold an integral precision casting director in the director form 10, the director bottom pouring type gating system comprising: the sprue cup comprises a sprue cup 20, a vertically arranged sprue 30 is communicated with the lower end of the sprue cup 20, a horizontally arranged cross runner assembly 40 is communicated with the bottom end of the sprue 30, the cross runner assembly 40 is used for distributing and blocking slag of mold filling liquid filled in by the sprue 30 so as to enable slag inclusions in the mold filling liquid to be retained in the cross runner assembly 40, and the cross runner assembly 40 is also used for rectifying the mold filling liquid so as to enable the mold filling liquid to be stably filled. The horizontal runner assembly 40 is communicated with a filling runner assembly 50, the filling runner assembly 50 is located above the horizontal runner assembly 40 and is respectively arranged on the inner side of the inner ring formwork shell 11 and the outer side of the outer ring formwork shell 12 of the guider formwork 10, and the filling runner assembly 50 is respectively communicated with the inner ring formwork shell 11 and the outer ring formwork shell 12, so that filling liquid after slag blocking and rectification in the horizontal runner assembly 40 is stably filled into the inner ring formwork shell 11 and the outer ring formwork shell 12 through the filling runner assembly 50.
When the guider bottom pouring type pouring system works, high-temperature filling liquid firstly enters the sprue 30 from the sprue cup 20, then is filled into the cross runner assembly 40 from the sprue 30, the cross runner assembly 40 divides, blocks and rectifies the filling liquid, the filling liquid which is divided, blocked and rectified by the cross runner assembly 40 is further upwards and stably filled into the filling runner assembly 50, and the filling liquid in the filling runner assembly 50 is respectively filled into the guider mould shell 10 from the inner ring mould shell 11 and the outer ring mould shell 12 of the guider mould shell 10.
When the guider bottom pouring type pouring system works, the whole mold filling liquid is filled from top to bottom by the pouring cup 20, the sprue 30 and the cross runner assembly 40, then the horizontal pouring channel assembly 40, the filling pouring channel assembly 50 and the guider mould shell 10 are used for filling from bottom to top, since the mold filling liquid is not directly filled against the deflector mold shell 10 in the entire mold filling process, but flows into the horizontal pouring channel assembly 40 from top to bottom, flows into the guider mould shell 10 from bottom to top after being subjected to the functions of scum, slag stopping and rectification, and is filled with the mould, because the slag inclusion of the casting is generally lighter than that of the filling liquid, therefore, when the mold filling liquid flows through the pouring cup 20 and the sprue 30, some slag inclusions caused and/or generated by the mold filling liquid flowing through can be attached to the upper wall surface of the runner in the runner assembly 40 due to the wall-hanging effect, so that the scum and slag blocking effects on the slag inclusions are achieved.
During filling, if filling liquid directly flows down from a pouring cup 20 to a sprue 30 without a rectification process, the inner ring formwork 11 and the outer ring formwork 12 are directly filled, the filling speed is high, and the filling liquid is disordered, the connection R between the inner ring formwork 11 and the blade body formwork 13 and the connection R between the outer ring formwork 12 and the blade body formwork 13 are both formwork weak areas, if the protrusions at the connection R are not cleaned completely in the formwork making stage, the quality of the formworks is difficult to guarantee, the formworks are easy to be washed away by high-speed filling liquid to remove the slag, the slag particles are easy to enter the blade body formwork along the filling liquid, in the guider bottom filling type pouring system, the filling liquid flows from a cross pouring gate assembly 40 to a guider formwork 10 to be a stable filling process from bottom to top, compared with the top filling type or top side filling type or top bottom mixing type or top and bottom mixing type guider formwork 10 in the prior art, thereby avoiding the risk of slag falling caused by the fact that the switching R position of the inner ring formwork 11 and the blade body formwork 13 and the switching R position of the outer ring formwork 12 and the blade body formwork 13 are washed by high-speed mold filling liquid.
The integral precision casting guider mould shell generally comprises dozens of blade mould shells with thin exhaust edges, the problem of under-casting caused by the filling type of the exhaust edges is common to the type of guider, and different from the traditional guider with the exhaust edges arranged upwards, in the guider bottom pouring type pouring system, the exhaust edges of the blade mould shells 13 are arranged downwards and inversely, so that the air inlet edges of the thick blade mould shells 13 can be used for feeding the light and thin exhaust edges to form a feeding sequence from top to bottom, and the exhaust edges of the blade mould shells are prevented from being under-cast; on the other hand, the horizontal runner assembly 40 located below the blade shell mold 13 is a main inlet for mold filling liquid, so that the temperature is high, heat radiation is generated to heat the exhaust edge, the mold filling of the exhaust edge is ensured, the heat dissipation rate of the exhaust edge is reduced, and the generation of columnar crystals is inhibited.
The integral precision casting type guider has the defects that the diameter-height ratio of parts is large, the integral part is almost a large plane, the plane runout degree is large, the ovality is difficult to guarantee and the like, and the defects are mainly formed because a guider mould shell in a casting system is directly connected with a sprue cup through a sprue or a side runner, the sprue cup is finally solidified along with the solidification, and a casting is easy to pull and deform under the influence of the solidification of the sprue cup.
Optionally, as shown in fig. 1, the upper end of the sprue 30 is in smooth transition connection with the lower end of the pouring cup 20, so as to ensure that the mold filling liquid smoothly enters the sprue 30 from the pouring cup 20, and reduce slag inclusion or turbulence generated by washing the connecting corner in the flowing process of the mold filling liquid. The inner runner of the sprue 30 is an inner circular conical channel with the diameter gradually reduced along the flowing direction of the mold filling liquid, according to the water flow principle, when water flows from high to low, the flowing section of the water gradually reduces, the mold filling liquid is generally molten metal, and when the inner runner of the sprue 30 is the inner circular conical channel with the diameter gradually reduced along the flowing direction of the mold filling liquid, the metal liquid and the inner runner can be more matched, the flowing gap is small, the mold filling of the metal liquid is convenient, and the mold drawing after the casting molding is convenient.
Alternatively, in the first embodiment of the present invention, as shown in fig. 1, the runner assembly 40 includes a plurality of runners 41 for distributing, baffling and stabilizing the mold filling liquid filled in the sprue 30, and the plurality of runners 41 are horizontally arranged in a radial shape on the outer periphery of the sprue 30. The inflow end of the runner 41 is vertically communicated with the sprue 30, and the outflow end of the runner 41 extends upward in the radial direction of the sprue 30. The mold-filling runner assemblies 50 are respectively communicated with the plurality of runners 41. The mold filling liquid flowing out from the sprue 30 is divided by a plurality of cross runners 41 and then directly enters each cross runner 41, and after slag blocking and flow stabilization in the cross runners 41, the mold filling liquid is stably filled into the mold filling runner assembly 50 through the cross runners 41. In the horizontal pouring channel assembly 40 of the invention, the mold filling liquid flowing out from the straight pouring channel 30 directly enters each horizontal pouring channel 41 and then enters the mold filling pouring channel assembly 50, the mold filling liquid flows linearly in the process, no steady flow is generated due to liquid convergence, no slag is generated due to the fact that corners at the connecting part are washed, the flowing speed of the mold filling liquid is high, and the heat loss is small.
Further, as shown in fig. 1, the mold filling runner assembly 50 includes a mold filling runner set corresponding to each runner 41, and the mold filling runner set includes an inner ring runner 51 for filling the inner ring formwork 11 and an outer ring runner 52 for filling the outer ring formwork 12. The inflow end of the inner ring pouring channel 51 is communicated with the corresponding cross pouring channel 41, and the outflow end of the inner ring pouring channel 51 is communicated with the inner ring formwork 11. The inflow end of the outer ring pouring channel 52 is communicated with the corresponding cross channel 41, and the outflow end of the outer ring pouring channel 52 is communicated with the outer ring formwork 12. The mold filling liquid in each cross gate 41 is fed into the guider mould shell 10 through the inner ring gate 51 and the outer ring gate 52 of the mold filling gate set correspondingly. The connection mode of the filling type pouring channel assembly 50 and the cross pouring channel assembly 40 and the structural arrangement mode of the filling type pouring channel assembly 50 and the cross pouring channel assembly 40 can also play a role in correcting the inner ring formwork 11 and the outer ring formwork 12, and the size precision of a casting is ensured.
Alternatively, a second embodiment of the invention, not shown, differs from the first embodiment in that the runner assembly 40 includes a plurality of runners 41 and a fairing for distributing, baffling and stabilizing the charge of mold liquid charged by the sprue 30. The rectifying disc is horizontally arranged below the sprue 30 in a disc shape and is communicated with the outflow end of the sprue 30. The plurality of runners 41 are radially arranged on the periphery of the rectifying disc, the inflow end of each runner 41 is communicated with the rectifying disc, and the outflow end of each runner 41 extends along the radial direction of the rectifying disc. The mold-filling runner assemblies 50 are respectively communicated with the plurality of runners 41. The mold filling liquid flowing out from the sprue 30 firstly enters the rectifying disc for blocking slag and stabilizing flow, then enters each cross runner 41 after being divided by the cross runners 41, and is further blocked slag and stabilized flow in the cross runners 41 and then is stably filled into the mold filling runner assembly 50 through the cross runners 41. In the horizontal runner assembly 40 of the invention, the mold filling liquid flowing out from the straight runner 30 is firstly rectified and blocked by the rectifying disc, then is divided into the horizontal runners 41 and then enters the mold filling runner assembly 50, the flow of the mold filling liquid in the process is also equivalent to straight flow, no steady flow is generated due to liquid convergence in the flow process, no slag inclusion is generated due to the fact that corners at the connecting part are washed in the flow process, the flow speed of the mold filling liquid is high, and the heat loss is small.
Further, not shown, the mold filling runner assembly 50 includes mold filling runner sets corresponding to the runners 41, and the mold filling runner sets include an inner ring runner 51 for filling the inner ring formwork 11 and an outer ring runner 52 for filling the outer ring formwork 12. The inflow end of the inner ring pouring channel 51 is communicated with the rectifying disc, and the outflow end of the inner ring pouring channel 51 is communicated with the inner ring formwork 11. The inflow end of the outer ring pouring channel 52 is communicated with the corresponding cross channel 41, and the outflow end of the outer ring pouring channel 52 is communicated with the outer ring formwork 12. The mold filling liquid in each cross gate 41 is fed into the guider mould shell 10 through the inner ring gate 51 and the outer ring gate 52 of the mold filling gate set correspondingly. The connection mode of the filling type pouring channel assembly 50 and the cross pouring channel assembly 40 and the structural arrangement mode of the filling type pouring channel assembly 50 and the cross pouring channel assembly 40 can also play a role in correcting the inner ring formwork 11 and the outer ring formwork 12, and the size precision of a casting is ensured.
Preferably, in the first and second embodiments of the present invention, not shown in the drawings, an outer boss protruding outward toward the blade shell mold 13 is disposed on the cross runner 41 corresponding to the exhaust edge of the blade shell mold 13, and the outer boss is communicated with the cross runner 41 and is used for further blocking slag and stabilizing the mold filling liquid in the cross runner 41, and is also used for performing radiation heating on the exhaust edge of the blade shell mold 13 located above the outer boss, so as to ensure the mold filling of the exhaust edge, reduce the heat dissipation rate of the exhaust edge, and suppress the generation of columnar crystals.
Specifically, in the first and second embodiments of the present invention, as shown in fig. 1, the inner ring runner 51 includes an inner vertical runner 511 vertically communicating with the horizontal runner 41 or the commutator disk, and an inner casting head 512 communicating with an outflow end of the inner vertical runner 511, and an outflow end of the inner casting head 512 communicates with the inner ring formwork 11. The outer ring runner 52 includes an outer vertical runner 521 vertically communicating with the horizontal runner 41, and an outer casting head 522 communicating with an outflow end of the outer vertical runner 521, the outflow end of the outer casting head 522 communicating with the outer ring formwork 12.
Specifically, in the first and second embodiments of the present invention, the cross sections of the inner runners of the horizontal runner 41, the inner vertical runner 511 and the outer vertical runner 521 are circular or square, so as to reduce the scouring of the wall surface of the inner runner during the flowing process of the mold filling liquid and ensure the smooth flowing of the mold filling liquid.
Preferably, as shown in fig. 1, the distance between the horizontal runner assembly 40 and the exhaust edge of the blade shell mold 13 is 10mm to 40mm, the filling liquid in the horizontal runner assembly 40 has a good effect of filling the guider mold shell 10, and the horizontal runner assembly 40 has a good heat radiation effect on the exhaust edge of the blade shell mold 13. When the distance between the horizontal runner assembly 40 and the exhaust edge of the blade shell mold shell 13 is less than 10mm, the mold filling liquid in the horizontal runner assembly 40 is quickly filled into the guider mold shell 10, and when the mold filling speed is higher, the mold filling liquid generates turbulence, and the wall surface of a flushing flow channel is easy to generate slag inclusion. When the distance between the cross gate assembly 40 and the exhaust edge of the blade shell mold shell 13 is larger than 40mm, the mold filling speed of the mold filling liquid is low, the mold filling force is insufficient, and therefore the casting is under cast, meanwhile, the heat radiation effect of the cross gate assembly 40 on the exhaust edge of the blade shell mold shell 13 is poor, columnar crystals are easily generated on the exhaust edge, and the casting effect is affected. More preferably, the distance between the cross gate assembly 40 and the exhaust edge of the blade shell mold 13 is 20mm to 30 mm.
Optionally, as shown in fig. 1, the guider bottom pouring type pouring system further includes a gas discharging rod 60 for discharging gas, one end of the gas discharging rod 60 is communicated with the mold filling runner assembly 50, and the other end of the gas discharging rod 60 is communicated with the sprue cup 20, so as to play a role in discharging gas during the mold filling process, and ensure that the mold filling liquid flows smoothly.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A director bottom pouring type gating system is characterized by being used for filling a director formwork (10) which is arranged upside down with an exhaust edge of a blade body formwork (13) downwards so as to form an integral precision casting director in the director formwork (10), and the director bottom pouring type gating system comprises:
the sprue gate structure comprises a sprue cup (20), wherein the lower end of the sprue cup (20) is communicated with a vertically arranged sprue (30), the bottom end of the sprue (30) is communicated with a horizontally arranged cross gate assembly (40), the cross gate assembly (40) is used for distributing and blocking slag of mold filling liquid filled by the sprue (30) so as to retain slag inclusions in the mold filling liquid in the cross gate assembly (40), and the cross gate assembly (40) is also used for rectifying the mold filling liquid so as to enable the mold filling liquid to be stably filled;
the cross gate assembly (40) is communicated with a filling gate assembly (50), the filling gate assembly (50) is positioned above the cross gate assembly (40) and is respectively arranged on the inner side of an inner ring formwork (11) and the outer side of an outer ring formwork (12) of the guider formwork (10), and the filling gate assembly (50) is respectively communicated with the inner ring formwork (11) and the outer ring formwork (12), so that filling liquid which is subjected to slag blocking and rectification in the cross gate assembly (40) is stably filled into the inner ring formwork (11) and the outer ring formwork (12) through the filling gate assembly (50);
the cross runner assembly (40) comprises a rectifying disc and a plurality of cross runners (41) which are used for shunting, blocking slag and stabilizing the filling liquid filled by the straight runners (30); the rectifying disc is horizontally arranged below the sprue (30) in a disc shape and is communicated with the outflow end of the sprue (30); the cross runners (41) are radially arranged on the periphery of the rectifying disc, the inflow end of each cross runner (41) is communicated with the rectifying disc, and the outflow end of each cross runner (41) extends along the radial direction of the rectifying disc; the filling pouring channel assembly (50) is respectively communicated with a plurality of cross pouring channels (41).
2. The director bottom gating system of claim 1,
the upper end of the sprue (30) is in smooth transition connection with the lower end of the sprue cup (20);
the inner runner of the sprue (30) is an inner circular conical channel with the diameter gradually reduced along the flowing direction of the mold filling liquid.
3. The director bottom gating system of claim 1,
the cross gate assembly (40) comprises a plurality of cross gates (41) which are used for distributing, blocking slag and stabilizing the filling liquid filled by the sprue (30), and the cross gates (41) are radially and horizontally arranged on the periphery of the sprue (30);
the inflow end of the cross gate (41) is vertically communicated with the sprue (30), and the outflow end of the cross gate (41) extends upwards along the axial direction of the sprue (30);
the filling pouring channel assembly (50) is respectively communicated with a plurality of cross pouring channels (41).
4. The director bottom gating system of claim 3,
the mold filling pouring channel assembly (50) comprises mold filling pouring channel groups which are arranged corresponding to the cross pouring channels (41), and each mold filling pouring channel group comprises an inner ring pouring channel (51) for filling the inner ring formwork (11) and an outer ring pouring channel (52) for filling the outer ring formwork (12);
the inflow end of the inner ring pouring channel (51) is communicated with the cross pouring channel (41) which is correspondingly arranged, and the outflow end of the inner ring pouring channel (51) is communicated with the inner ring formwork (11);
the inflow end of the outer ring pouring channel (52) is communicated with the cross channel (41) which is correspondingly arranged, and the outflow end of the outer ring pouring channel (52) is communicated with the outer ring formwork (12).
5. The director bottom gating system of claim 1,
the mold filling pouring channel assembly (50) comprises mold filling pouring channel groups which are arranged corresponding to the cross pouring channels (41), and each mold filling pouring channel group comprises an inner ring pouring channel (51) for filling the inner ring formwork (11) and an outer ring pouring channel (52) for filling the outer ring formwork (12);
the inflow end of the inner ring runner (51) is communicated with the rectifying disc, and the outflow end of the inner ring runner (51) is communicated with the inner ring formwork (11);
the inflow end of the outer ring pouring channel (52) is communicated with the cross channel (41) which is correspondingly arranged, and the outflow end of the outer ring pouring channel (52) is communicated with the outer ring formwork (12).
6. The director bottom gating system of any one of claims 1 or 3,
an outer boss protruding outwards towards the blade body formwork (13) is arranged on the cross gate (41) corresponding to the exhaust edge of the blade body formwork (13), and the outer boss is communicated with the cross gate (41) and used for further blocking slag and stabilizing flow of mold filling liquid in the cross gate (41) and also used for performing radiation heating on the exhaust edge of the blade body formwork (13) above the outer boss.
7. The director bottom gating system of any one of claims 4 or 5,
the inner ring pouring gate (51) comprises an inner vertical pouring gate (511) vertically communicated with the horizontal pouring gate (41) or the rectifying disc, and an inner casting head (512) communicated with an outflow end of the inner vertical pouring gate (511), wherein an outflow end of the inner casting head (512) is communicated with the inner ring formwork (11);
the outer ring pouring gate (52) comprises an outer vertical pouring gate (521) vertically communicated with the horizontal pouring gate (41), and an outer casting head (522) communicated with an outflow end of the outer vertical pouring gate (521), and an outflow end of the outer casting head (522) is communicated with the outer ring formwork (12).
8. The director bottom gating system of claim 1,
the distance between the transverse pouring channel assembly (40) and the exhaust edge of the blade body mould shell (13) is 10-40 mm.
9. The director bottom gating system of claim 1,
the guider bottom pouring type pouring system further comprises an exhaust rod (60) used for exhausting, one end of the exhaust rod (60) is communicated with the filling type pouring channel assembly (50), and the other end of the exhaust rod (60) is communicated with the pouring cup (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911049341.7A CN110883315B (en) | 2019-10-31 | 2019-10-31 | Bottom pouring type pouring system of guider |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911049341.7A CN110883315B (en) | 2019-10-31 | 2019-10-31 | Bottom pouring type pouring system of guider |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110883315A CN110883315A (en) | 2020-03-17 |
| CN110883315B true CN110883315B (en) | 2021-05-07 |
Family
ID=69746605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911049341.7A Active CN110883315B (en) | 2019-10-31 | 2019-10-31 | Bottom pouring type pouring system of guider |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110883315B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111531130B (en) * | 2020-05-29 | 2021-09-28 | 中国航发南方工业有限公司 | Dynamic equilibrium pouring system of double-layer blade thin-wall guider |
| CN111922290B (en) * | 2020-07-21 | 2021-06-25 | 上海交通大学 | Bottom pouring type pouring system and method for high-temperature alloy large-scale casing casting |
| CN114160758B (en) * | 2021-12-08 | 2024-01-23 | 中国航发南方工业有限公司 | Pouring system of double-layer bidirectional integral director casting and casting forming method thereof |
| CN115055645B (en) * | 2022-06-07 | 2023-10-17 | 中国航发航空科技股份有限公司 | Pouring system for a guide vane blank |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105312504B (en) * | 2015-11-04 | 2017-08-29 | 沈阳黎明航空发动机(集团)有限责任公司 | A kind of high temperature alloy thin-wall ring casting moulding system and manufacture method |
| CN106890940B (en) * | 2017-02-24 | 2018-12-21 | 株洲中航动力精密铸造有限公司 | The running gate system of block cast guider |
| CN207026420U (en) * | 2017-06-26 | 2018-02-23 | 共享铸钢有限公司 | A kind of sand core structure of turbine blade steel-casting |
| CN208245744U (en) * | 2018-05-15 | 2018-12-18 | 象山县共青铸造厂 | A kind of casting system of regulating flow quantity |
| CN108515146B (en) * | 2018-05-22 | 2019-12-27 | 中国航发南方工业有限公司 | Gating system of integral precision casting guider |
| CN108465779B (en) * | 2018-06-25 | 2024-04-02 | 中国航发南方工业有限公司 | Bottom pouring type pouring system and pouring method of vertical vane guide |
| CN109719258B (en) * | 2019-03-20 | 2024-04-26 | 中国航发南方工业有限公司 | Bottom-like pouring system and method for turbine guide |
-
2019
- 2019-10-31 CN CN201911049341.7A patent/CN110883315B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN110883315A (en) | 2020-03-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110883315B (en) | Bottom pouring type pouring system of guider | |
| CN107838375B (en) | Cast steel gating system | |
| CN107042287B (en) | A kind of casting method of steam turbine high pressure main air valve casting | |
| CN110586870B (en) | Casting system and casting method for bent pipe steel casting | |
| CN110340299B (en) | Pouring device for precoated sand stacked products | |
| CN105598376B (en) | Combined type pouring basin | |
| CN214023350U (en) | Casting device of aluminum alloy casting | |
| CN208743624U (en) | A kind of knitting machine main plate running gate system | |
| CN209157053U (en) | A kind of Langaloy butterfly valve body sand mold mould | |
| CN103464687A (en) | Pouring system as well as novel casting method of glass mold | |
| CN203437595U (en) | Gating system | |
| CN212525926U (en) | Casting device of vertical line ductile iron casting mold | |
| CN101422809A (en) | Shrinkage compensation method of hollow cast | |
| CN212191123U (en) | Pouring cup | |
| CN210848317U (en) | Side-hole asymmetric submerged five-hole water gap for rectangular large square billet | |
| CN210146930U (en) | Riser-free pouring system | |
| CN208976754U (en) | Template for flywheel sand casting vertical casting | |
| CN108080569B (en) | A kind of lost foam casting processing method of vehicle front draft lug | |
| CN208976778U (en) | Flywheel casting mould | |
| CN210547874U (en) | Pouring device for precoated sand stacked products | |
| CN109128047B (en) | Process model structure of casting system for clamp casting and use method | |
| CN208758571U (en) | A kind of cone-shaped gate cup | |
| CN208131919U (en) | Bearing block resin sand mould | |
| CN113500167A (en) | Top-pouring type filling system of directional solidification turbine blade | |
| CN210023671U (en) | Feeding core for casting |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |