CN213052634U - Thin-wall shell casting module - Google Patents
Thin-wall shell casting module Download PDFInfo
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- CN213052634U CN213052634U CN202021803815.0U CN202021803815U CN213052634U CN 213052634 U CN213052634 U CN 213052634U CN 202021803815 U CN202021803815 U CN 202021803815U CN 213052634 U CN213052634 U CN 213052634U
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Abstract
The utility model relates to a thin-wall shell casting module in the field of investment casting equipment tools, which comprises a pouring component and a casting wax mold, wherein a hanging mechanism is arranged on the pouring component; the pouring component comprises a pouring cup, a filter, a cross gate and an inner gate which are mutually connected and matched, the pouring cup is of a hollow structure, a plurality of parallel branch pouring gates are uniformly distributed on the cross gate and divide the branch pouring gates into two parts, and the branch pouring gates on the two sides of the cross gate are respectively connected with a casting wax mold through the inner gate on the side; the hanging mechanism comprises a handle hook, a locking pressing sheet, a locking nut and a fixing nut which are mutually connected and matched. The utility model has the advantages of easy manufacture, cheap and easily obtained materials, and saved production cost; the operation is convenient, labor is saved, the operation is quick, the drying and operation time is reduced, and the production efficiency is improved; the handle hook is arranged to facilitate hanging; the aluminum alloy liquid passes through the filter, which is beneficial to improving the quality of the casting; the composite manufacturing of the shell is beneficial to the subsequent cleaning of the shell and the improvement of the dimensional precision of the casting.
Description
Technical Field
The utility model relates to an investment casting equipment frock field specifically relates to a thin wall shell body foundry goods module.
Background
Investment casting is a widely used form of casting. As the name indicates, when a thin-wall shell casting is produced, the casting is difficult to form, the internal quality of the casting is difficult to control, the dimensional precision can fluctuate, the shell cleaning can cause the problems of casting deformation or damage and the like, and the requirements on the casting quality, especially the requirements on the internal quality, the dimensional precision and the surface quality of the casting, are high due to the large demand of the thin-wall shell casting, so that a thin-wall shell casting silica sol module which is low in production cost, easy in raw material obtaining and low in price and can solve the problems and is convenient for mass production is urgently needed.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model provides a thin-wall shell casting module, which comprises a pouring component and a casting wax mold, wherein a suspension mechanism is arranged on the pouring component;
the pouring component comprises a pouring cup, a filter, a cross gate and an inner gate, wherein the pouring cup is of a hollow structure, the filter is fixed below the pouring cup, the cross gate is fixed below the filter, two sides of the cross gate are respectively connected with the upper part of the pouring cup through connecting pieces, stable and reliable connection of the pouring cup and the cross gate is ensured, a plurality of parallel branch pouring gates are uniformly distributed on the cross gate, the branch pouring gates are perpendicular to the cross gate, the cross gate penetrates through the center of each branch pouring gate to divide the branch pouring gate into two parts, the inner gate is fixed on the lower surfaces of the branch pouring gates on two sides of the cross gate, and the branch pouring gates on two sides of the cross gate are respectively connected with a casting wax mold through the inner gate on the side;
the hanging mechanism comprises a handle hook, a locking pressing sheet, a locking nut and a fixing nut; the bottom of fixation nut embedding pouring basin inner chamber and welding have fixed steel sheet, the handle couple includes kink and vertical portion, the surface of vertical portion is equipped with the external screw thread, and during the lower extreme of vertical portion stretched into pouring basin inner chamber and screw in fixation nut, the rim of a cup department cover that vertical portion corresponds the pouring basin is equipped with the locking preforming, and the diameter of locking preforming is greater than the diameter of pouring basin rim of a cup, the vertical portion cover of locking preforming top is equipped with lock nut, lock nut and vertical portion screw-thread fit.
The utility model discloses except that hanging mechanism and filter, all the other subassemblies are the suppression of medium temperature wax material and form, and the silica sol coating of being convenient for is dry after, utilizes the dewaxing cauldron to adopt high pressure steam to melt the molding shell rapidly with the gating system wax material.
Preferably, the number of the fixed ingates on each branch pouring channel is not less than two, and the ingates are symmetrically distributed about the center of the branch pouring channel. The pouring efficiency is improved.
Preferably, the filter is a ceramic filter screen, and can filter the alloy liquid in the pouring process, thereby effectively improving the internal quality of the casting.
Preferably, the pouring cup is a funnel-shaped pouring cup, and the hollow funnel-shaped pouring cup is matched with the suspension mechanism, so that the shell manufacturing process is convenient to suspend, the operability is greatly improved, and the working efficiency is improved.
The utility model discloses still including enabling the other subassemblies of a thin wall casing foundry goods module normal use, be the conventional technical means in this field. In addition, the utility model discloses in all adopt the conventional technical means in this field with the device or the subassembly of injecing, all adopt the conventional technical means in this field such as locking preforming, lock nut, ingate, fixation nut, cross gate, branch runner, pouring basin, ceramic filter screen.
The working principle of the utility model is that the casting wax mold is connected with the pouring component through the inner pouring gate to form a module, a ceramic filter screen is arranged in the module in advance, then refractory paint is added into a certain proportion of adhesive to be uniformly stirred according to technological requirements, the module is uniformly dipped with coating, a layer of refractory sand is uniformly adhered on the module, a handle hook is selected to hang the module, drying is carried out under the condition of meeting technological conditions, the process is repeated for 3-5 times, only the coating is dipped for the last time to be dried, then a dewaxing kettle is utilized to rapidly melt the wax of the pouring system into a shell in 8-10 minutes by adopting high-pressure steam (0.65-0.75 MPa), the shell is roasted at high temperature in a roasting furnace, gravity pouring of aluminum alloy can be carried out, the pouring process is carried out under a vacuum environment, middle aluminum alloy liquid enters the ceramic filter screen through the pouring gate cup and is filtered and purified by the ceramic filter screen, get into the cross gate, the alloy liquid is whole through ceramic filter screen filtration, the dispersion, guaranteed like this to prevent that alloy from mixing with the thing and getting into the foundry goods die cavity night, guarantee again that pouring process alloy liquid constant velocity gets into the die cavity, reduce the production of secondary oxidation, thereby improve foundry goods quality, the cross gate cooperation is divided and is watered and play buffering and cloth liquid effect to aluminum alloy liquid, aluminum alloy liquid is in the mold shell that each ingate that divides watered gets into the correspondence, clear up the mold shell after the cooling, get rid of the pouring subassembly and can obtain two castings. The thin-wall shell casting is easy to manufacture, the material of a pouring system is recycled wax, the cost is low, and the production cost is saved;
the utility model realizes standardization, saves labor and is fast, reduces drying and operating time, and improves production efficiency; the ceramic filter is arranged, so that alloy liquid can be filtered in the pouring process, and the casting internal quality is effectively improved. The alloy is poured in a vacuum environment, which is beneficial to improving the molding of a thin-wall casting and reducing the gas hazard of alloy liquid. The shell manufacturing process adopts a composite refractory material process, and the difficulty in cleaning the shell is reduced and the working efficiency and the size precision are improved by utilizing the different thermal expansion coefficients of different materials.
The utility model has the advantages of easy manufacture, cheap and easily obtained materials (wax recovery), and production cost saving; the operation is convenient, labor is saved, the operation is quick, the drying and operation time is reduced, and the production efficiency is improved; the handle hook is arranged to facilitate hanging; the aluminum alloy liquid passes through the filter, which is beneficial to improving the quality of the casting; the subsequent cleaning of the shell after the composite manufacturing of the shell is facilitated, and the dimensional precision of the casting is improved.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic structural diagram of a thin-wall casing casting module according to an embodiment of the present invention;
fig. 2 is a shell and gating assembly produced by the thin-walled shell casting module of fig. 1.
In the figure: 1. the casting device comprises a handle hook, 2 parts of a locking nut, 3 parts of a locking pressing sheet, 4 parts of a sprue cup, 5 parts of a connecting piece, 6 parts of a fixing nut, 7 parts of a fixing steel sheet, 8 parts of a filter, 9 parts of a cross gate, 10 parts of an inner gate, 11 parts of a casting wax mold and 12 parts of a branch gate.
Detailed Description
The present invention will be described more clearly with reference to the accompanying drawings and specific embodiments in the embodiments of the present invention, and the description herein is only for explaining the present invention, but not for limiting the present invention. Based on the embodiments of the present invention, any modifications, equivalent replacements, improvements, etc. made by other embodiments obtained by those skilled in the art without creative efforts should be included in the protection scope of the present invention.
Examples
As shown in fig. 1-2, the utility model provides a thin-wall shell casting module, which comprises a pouring component and a casting wax mold 11, wherein a suspension mechanism is arranged on the pouring component;
the pouring component comprises a pouring cup 4, a filter 8, a cross gate 9 and an inner pouring gate 10, the pouring cup 4 is of a hollow structure, the dewaxing efficiency can be effectively improved, the completeness of the pouring cup and a shell in the dewaxing link is guaranteed, the pouring cup 4 plays a role of a riser in the casting solidification process, the casting is a thin-wall shell casting, the upper portion of the casting is thick, sequential solidification of the casting in the solidification process is facilitated, and full feeding is facilitated. The filter 8 is fixed below the sprue cup 4, wax materials are wrapped on the periphery of the filter 8, the filter 8 can filter alloy liquid and reduce flocculation flow of the alloy liquid in the pouring process, and therefore improvement of the internal quality of castings and the qualified rate of the castings are facilitated. The cross gate 9 is fixed below the filter 8, two sides of the cross gate 9 are respectively connected with the upper part of the sprue cup 4 through connecting pieces 5, stable and reliable connection between the sprue cup 4 and the cross gate 9 is ensured, a plurality of parallel branch gates 12 are uniformly distributed on the cross gate 9, the branch gates 12 are perpendicular to the cross gate 9, the cross gate 9 penetrates through the center of each branch gate 12 to divide the branch gate 12 into two parts, the ingates 10 are fixed on the lower surfaces of the branch gates 12 on two sides of the cross gate 9, and the branch gates 12 on two sides of the cross gate 9 are respectively connected with a casting wax mold 11 through the ingates 10 on the side;
the hanging mechanism comprises a handle hook 1, a locking pressing sheet 3, a locking nut 2 and a fixing nut 6; fixing nut 6 imbeds the bottom of pouring basin 4 inner chamber and the welding has fixed steel sheet 7, handle couple 1 includes kink and vertical portion, the surface of vertical portion is equipped with the external screw thread, and the lower extreme of vertical portion stretches into in pouring basin 4 inner chamber and screw in fixing nut 6, the rim of a cup department cover that vertical portion corresponds pouring basin 4 is equipped with locking preforming 3, and the diameter of locking preforming 3 is greater than the diameter of pouring basin 4 rim of a cup, the vertical portion cover of locking preforming 3 top is equipped with lock nut 2, lock nut 2 and vertical portion screw-thread fit, through lock nut 2 with the external screw-thread fit of vertical portion with locking preforming 3 sticiss in the rim of a cup department of pouring basin 4, and then removed the step of sealing from.
The utility model discloses except that hanging mechanism and filter 8, all the other subassemblies are the suppression of medium temperature wax material and form, are convenient for at the system shell in-process, and after the silica sol coating is dry, utilize the dewaxing cauldron to adopt high pressure steam to melt the gating system wax material rapidly, form the shell.
The number of the fixed ingates 10 on each branch pouring channel 12 is not less than two, and the ingates 10 are symmetrically distributed about the center of the branch pouring channel 12. The pouring efficiency is improved.
The filter 8 is a ceramic filter screen, and can filter alloy liquid in the pouring process, so that the internal quality of the casting is effectively improved.
The pouring cup 4 is a funnel-shaped pouring cup, and the hollow funnel-shaped pouring cup is matched with the suspension mechanism, so that the shell manufacturing process is convenient to suspend, the operability is greatly improved, and the working efficiency is improved.
When the mould is used, a casting wax mould 11 is connected with a pouring component through an inner pouring gate 10 to form a mould set, a ceramic filter screen is arranged in the mould set in advance, then a certain proportion of adhesive is added into refractory paint and is uniformly stirred according to process requirements, the mould set is uniformly dipped with coating, a layer of refractory sand is uniformly adhered to the mould set, a handle hook 1 is selected to hang the mould set, drying is carried out under the condition that the process conditions are met, then the process is repeated for 3-5 times, only the coating is dipped for drying at the last time, then the wax of a pouring system is rapidly melted by using high-pressure steam (0.65-0.75 MPa) in 8-10 minutes by a dewaxing kettle to form a mould shell, and the silica sol adopted for manufacturing the mould shell is silica sol liquid with the silica content of 30%; the first three layers of coating materials are 325-mesh fused quartz powder, and the viscosity is 50-55 seconds; the fourth layer is made of 325-mesh mullite coating, and the viscosity is 30-35 seconds; the fused quartz coating and the mullite coating are used in a composite mode, so that the cleaning of a casting shell can be effectively improved, the dimensional accuracy can be effectively controlled, and the shell can be used for gravity pouring of aluminum alloy after being roasted at high temperature by a roasting furnace; aluminum alloy liquid gets into ceramic filter screen through pouring basin 4 in the pouring process, is filtered and purified the back by ceramic filter screen, gets into horizontal runner 9, and horizontal runner 9 cooperation is divided runner 12 and is played buffering and cloth liquid effect to aluminum alloy liquid, and aluminum alloy liquid is in the shell that each branch runner 12's in sprue 10 gets into the correspondence, clears up the shell after the cooling, gets rid of the pouring subassembly and can obtain two castings.
The foregoing description of the embodiments of the invention has been presented for purposes of illustration and not limitation, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the illustrated embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. The utility model provides a thin wall casing foundry goods module, includes pouring subassembly and foundry goods wax matrix, its characterized in that: a suspension mechanism is arranged on the pouring component;
the pouring component comprises a pouring cup, a filter, a cross gate and an inner gate, wherein the pouring cup is of a hollow structure, the filter is fixed below the pouring cup, the cross gate is fixed below the filter, two sides of the cross gate are respectively connected with the upper part of the pouring cup through connecting pieces, a plurality of parallel branch gates are uniformly distributed on the cross gate, the branch gates are perpendicular to the cross gate, the cross gate penetrates through the center of each branch gate to divide the branch gate into two parts, the inner gate is fixed on the lower surface of the branch gate at two sides of the cross gate, and the branch gates at two sides of the cross gate are respectively connected with a casting wax mold through the inner gate at the side;
the hanging mechanism comprises a handle hook, a locking pressing sheet, a locking nut and a fixing nut; the bottom of fixation nut embedding pouring basin inner chamber and welding have fixed steel sheet, the handle couple includes kink and vertical portion, the surface of vertical portion is equipped with the external screw thread, and the lower extreme of vertical portion stretches into pouring basin inner chamber and screw in fixation nut, the rim of a cup department cover that vertical portion corresponds the pouring basin is equipped with the locking preforming, and the diameter of locking preforming is greater than the diameter of pouring basin rim of a cup, the vertical portion cover of locking preforming top is equipped with lock nut, lock nut and vertical portion screw-thread fit.
2. The thin-walled shell casting mold set of claim 1, wherein: the number of the fixed inner gates on each branch pouring gate is not less than two, and the inner gates are symmetrically distributed relative to the center of each branch pouring gate.
3. The thin-walled shell casting mold set of claim 1, wherein: the filter is a ceramic filter screen.
4. The thin-walled shell casting mold set of claim 1, wherein: the pouring cup is a funnel-shaped pouring cup.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021803815.0U CN213052634U (en) | 2020-08-25 | 2020-08-25 | Thin-wall shell casting module |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021803815.0U CN213052634U (en) | 2020-08-25 | 2020-08-25 | Thin-wall shell casting module |
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| CN213052634U true CN213052634U (en) | 2021-04-27 |
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| CN202021803815.0U Active CN213052634U (en) | 2020-08-25 | 2020-08-25 | Thin-wall shell casting module |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117161319A (en) * | 2023-10-30 | 2023-12-05 | 中国航发沈阳黎明航空发动机有限责任公司 | Module for solving cracking of investment casting manipulator shell and casting method |
-
2020
- 2020-08-25 CN CN202021803815.0U patent/CN213052634U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117161319A (en) * | 2023-10-30 | 2023-12-05 | 中国航发沈阳黎明航空发动机有限责任公司 | Module for solving cracking of investment casting manipulator shell and casting method |
| CN117161319B (en) * | 2023-10-30 | 2024-01-23 | 中国航发沈阳黎明航空发动机有限责任公司 | Module for solving cracking of investment casting manipulator shell and casting method |
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