CN117161319B - Module for solving cracking of investment casting manipulator shell and casting method - Google Patents
Module for solving cracking of investment casting manipulator shell and casting method Download PDFInfo
- Publication number
- CN117161319B CN117161319B CN202311417471.8A CN202311417471A CN117161319B CN 117161319 B CN117161319 B CN 117161319B CN 202311417471 A CN202311417471 A CN 202311417471A CN 117161319 B CN117161319 B CN 117161319B
- Authority
- CN
- China
- Prior art keywords
- metal
- shell
- rod
- pouring
- ceramic
- 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
- 238000005495 investment casting Methods 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000005266 casting Methods 0.000 title claims abstract description 11
- 238000005336 cracking Methods 0.000 title claims abstract description 11
- 239000002184 metal Substances 0.000 claims abstract description 45
- 239000000919 ceramic Substances 0.000 claims abstract description 27
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 23
- 238000004519 manufacturing process Methods 0.000 claims abstract description 19
- 238000003825 pressing Methods 0.000 claims abstract description 5
- 239000001993 wax Substances 0.000 claims description 12
- 230000008569 process Effects 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 235000013871 bee wax Nutrition 0.000 claims description 3
- 239000012166 beeswax Substances 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 239000010431 corundum Substances 0.000 claims description 3
- 229910052593 corundum Inorganic materials 0.000 claims description 3
- 238000005485 electric heating Methods 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 3
- 239000012188 paraffin wax Substances 0.000 claims description 3
- 239000011819 refractory material Substances 0.000 claims description 3
- 238000012797 qualification Methods 0.000 abstract description 7
- 230000007547 defect Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 101150038956 cup-4 gene Proteins 0.000 description 7
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
- Y02P10/20—Recycling
Landscapes
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention provides a module for solving the problem of cracking of a mold shell of an investment casting manipulator, wherein a metal manipulator rod is connected with a metal pouring cup rod, a dustproof rubber pad is arranged on a ceramic pouring cup, a metal hexagonal nut is matched with a metal threaded rod, the metal threaded rod is arranged on the inner side of a main pouring channel, and a reinforcing rod is arranged on the outer side of the main pouring channel. A casting method for solving the problem of die set of cracks of a mechanical arm shell of an investment casting uses a die to press a part wax die and a pouring system, a metal threaded rod with a metal hexagonal nut at one end is put into the die in advance during pressing of a main runner, one side of the main runner, which is connected with a ceramic pouring cup, is designed into a conical or special-shaped structure, and a space is reserved on the main runner for placing a reinforcing rod. The invention has the advantages that: solves the problem of low qualification rate of the shell manufacture, and has good implementation effect. After the invention is applied, the manufacturing qualification rate of the manipulator shell is improved, and the metallurgical defects such as inclusion, flame running and the like caused by the shell are obviously reduced.
Description
Technical Field
The invention relates to the technical field of investment casting, in particular to a module for solving cracks of a manipulator shell of an investment casting and a casting method.
Background
In the investment casting process, the manufacture of a shell with good quality is a key link for ensuring that castings with good size and metallurgical quality are obtained in the subsequent production process. The manufacturing of the shell comprises two methods of manual operation and automatic shell manufacturing of a mechanical arm shell manufacturing line, along with the progress of industrialization level and technical capability, the mechanical arm shell manufacturing gradually replaces the manual shell manufacturing, but the coating and sanding operation in the mechanical arm shell manufacturing process are carried out at one end of a pouring cup of a mechanical arm clamping module, the stress near the pouring cup is concentrated, and the shell is easy to crack. And the two hands of the operator respectively hold the two ends of the module in the manual shell making process, so that the problem is avoided.
The length of a part of an adjusting piece of an engine exceeds 600mm, a pouring system is complex, the number of layers for manufacturing a molded shell is about 10, the weight of the molded shell reaches 20 kg-30 kg when the molded shell is manufactured to 6 layers and 7 layers, if the molded shell is manufactured manually, the labor intensity of operators is very high, and meanwhile, the quality of the molded shell cannot be ensured. The mechanical arm shell manufacturing process is adopted, the mechanical arm is used for clamping one end of the module pouring cup due to overlarge weight of the module, meanwhile, the mechanical arm is used for clamping one end of the module pouring cup due to longer length of the module, the module is clamped at an inclined angle of 30-60 degrees in the process of coating and sanding operation, one end of the mechanical arm is used for clamping the module pouring cup, the manufacturing qualification rate of the shell is extremely low, the qualification rate is less than 30%, and the unqualified shell is a fracture or crack generated near the pouring cup and the main pouring gate.
Disclosure of Invention
The invention aims to meet the casting process of the mould shells of various alloy investment casting mechanical arms, effectively reduce the crack defect of the mould shells caused by overlarge weight of the mould blocks or overlong mould blocks, improve the manufacturing qualification rate of the mould shells, and particularly provide a mould block for solving the crack of the mould shells of the investment casting mechanical arms and a casting method.
The invention provides a module for solving the problem of cracking of a mold shell of an investment casting manipulator, which comprises a metal manipulator rod, a metal pouring cup rod, a dustproof rubber pad, a ceramic pouring cup, a metal hexagonal nut, a metal threaded rod, a reinforcing rod and a main pouring channel, wherein the metal manipulator rod is arranged on the metal pouring cup rod;
wherein: the metal manipulator rod is connected with the metal pouring cup rod, the dustproof rubber pad is arranged on the ceramic pouring cup, the metal hexagonal nut is matched with the metal threaded rod, the metal threaded rod is arranged on the inner side of the main pouring channel, and the reinforcing rod is arranged on the outer side of the main pouring channel.
A casting method for solving the problem of mould set of cracks of a mould shell of an investment casting manipulator uses a mould to press a part wax mould and a pouring system, wherein a metal threaded rod with a metal hexagonal nut at one end is put in the mould in advance when a main pouring channel is pressed, and the metal hexagonal nut is flush with one side of the main pouring channel connected with a ceramic pouring cup after being pressed;
one side of the main pouring gate, which is connected with the ceramic pouring cup, is designed into a conical or special-shaped structure, and a space is reserved on the main pouring gate for placing a reinforcing rod; the melting point of the reinforcing rod is higher than that of the wax mould material, the room temperature and high temperature strength are higher than those of the shell refractory material, and the cross section is one of round, elliptic, triangular and polygonal; the reinforcing rod is made of ceramic, corundum and metal materials, the surface of the reinforcing rod is coated by white paraffin and beeswax, the coating thickness is not less than 0.2mm, and no upper limit is required.
The manufactured module for solving the cracking of the mould shell of the investment casting manipulator is vertical or inclined, and the ceramic pouring cup is placed downwards; removing wax materials by adopting an electric heating or steam dewaxing kettle, wherein in the removal process, a placed reinforcing rod moves out of a ceramic pouring cup or beside the ceramic pouring cup along with the movement of molten wax materials, and is manually taken out after being cooled to room temperature; and (3) after conventional shell roasting and cleaning, the dewaxed shell is subjected to manufacturing of the qualified shell.
The invention has the advantages that: the die set for solving the cracking of the die shell of the investment casting manipulator and the casting method effectively solve the problem of low qualification rate of the die shell manufacture, and have good implementation effect. After the invention is applied, the manufacturing qualification rate of the manipulator shell is improved, and the metallurgical defects such as inclusion, flame running and the like caused by the shell are obviously reduced.
Drawings
FIG. 1 is a schematic diagram of a modular construction for resolving cracks in a shell of an investment casting manipulator.
Detailed Description
The present invention will be further explained with reference to specific embodiments, but the structure, proportion, size, etc. shown in the drawings are only used for understanding and reading by those skilled in the art, and are not intended to limit the applicable limitations of the present invention, so that any structural modification, proportional relation change or size adjustment does not have any technical significance, and all fall within the scope of the technical contents disclosed in the present invention without affecting the efficacy and achievement of the present invention.
Examples: see fig. 1:
the module for solving the cracking of the investment casting manipulator shell comprises a metal manipulator rod 1, a metal pouring cup rod 2, a dustproof rubber pad 3, a ceramic pouring cup 4, a metal hexagonal nut 5, a metal threaded rod 6, a reinforcing rod 7 and a main pouring gate 8;
wherein: the metal manipulator rod 1 is connected with the metal pouring cup rod 2, the dustproof rubber pad 3 is arranged on the ceramic pouring cup 4, the metal hexagonal nut 5 is matched with the metal threaded rod 6, the metal threaded rod 6 is arranged on the inner side of the main pouring channel 8, and the reinforcing rod 7 is arranged on the outer side of the main pouring channel 8.
A casting method for solving the die set of the cracking of the mould shell of the mechanical arm of the investment casting uses a die to press a part wax mould and a pouring system, wherein a metal threaded rod 6 with one end provided with a metal hexagonal nut 5 is put in advance in the die during pressing of a main pouring channel 8, and the metal hexagonal nut 5 is flush with one side of the main pouring channel 8 connected with a ceramic pouring cup 4 after pressing;
the side of the main pouring channel 8 connected with the ceramic pouring cup 4 is designed into a conical or special-shaped structure, and a space is reserved on the main pouring channel 8 for placing the reinforcing rod 7; the melting point of the reinforcing rod 7 is higher than that of the wax mould material, the room temperature and high temperature strength are higher than those of the shell refractory material, and the cross section shape is one of round, oval, triangle and polygon; the reinforcing rod 7 is made of ceramic, corundum and metal materials, the surface of the reinforcing rod 7 is coated by white paraffin and beeswax, the coating thickness is not less than 0.2mm, and no upper limit is required.
The manufactured module for solving the cracking of the mould shell of the investment casting manipulator is vertical or inclined, and the ceramic pouring cup 4 is placed downwards; the wax is removed by adopting an electric heating or steam dewaxing kettle, in the removal process, the placed reinforcing rod 7 moves out of the ceramic pouring cup 4 or beside the ceramic pouring cup 4 along with the movement of the molten wax, and is manually taken out after being cooled to room temperature; and (3) after conventional shell roasting and cleaning, the dewaxed shell is subjected to manufacturing of the qualified shell.
The invention is not a matter of the known technology.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (1)
1. A casting method of a module for solving the problem of cracking of a shell of an investment casting manipulator is characterized by comprising the following steps: the module for solving the cracks of the manipulator shell of the investment casting comprises a metal manipulator rod (1), a metal pouring cup rod (2), a dustproof rubber pad (3), a ceramic pouring cup (4), a metal hexagonal nut (5), a metal threaded rod (6), a reinforcing rod (7) and a main pouring channel (8);
wherein: the metal manipulator rod (1) is connected with the metal pouring cup rod (2), the dustproof rubber pad (3) is arranged on the ceramic pouring cup (4), the metal hexagonal nut (5) is matched with the metal threaded rod (6), the metal threaded rod (6) is arranged on the inner side of the main pouring channel (8), and the reinforcing rod (7) is arranged on the outer side of the main pouring channel (8);
the method comprises the steps of pressing a part wax mould and a pouring system by using a mould, wherein a metal threaded rod (6) with one end provided with a metal hexagonal nut (5) is put in advance in the mould when a main pouring channel (8) is pressed, and the metal hexagonal nut (5) is flush with one side of the main pouring channel (8) connected with a ceramic pouring cup (4) after pressing;
one side of the main pouring channel (8) connected with the ceramic pouring cup (4) is designed into a conical or special-shaped structure, and a space is reserved on the main pouring channel (8) for placing a reinforcing rod (7); the melting point of the reinforcing rod (7) is higher than that of the wax mould material, the room temperature and high temperature strength are higher than that of the shell refractory material, and the cross section shape is one of round, elliptic, triangular and polygonal shapes; the reinforcing rod (7) is made of ceramic, corundum and metal materials, the surface of the reinforcing rod (7) is coated by white paraffin and beeswax, the coating thickness is not less than 0.2mm, and the upper limit requirement is met; the manufactured module for solving the cracking of the mould shell of the investment casting manipulator is vertical or inclined, and the ceramic pouring cup (4) is placed downwards; the wax is removed by adopting an electric heating or steam dewaxing kettle, in the removal process, a placed reinforcing rod (7) can move to the outside of a ceramic pouring cup (4) or the side of the ceramic pouring cup (4) along with the movement of the molten wax, and the ceramic pouring cup is taken out manually after being cooled to room temperature; and (3) after conventional shell roasting and cleaning, the dewaxed shell is subjected to manufacturing of the qualified shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311417471.8A CN117161319B (en) | 2023-10-30 | 2023-10-30 | Module for solving cracking of investment casting manipulator shell and casting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311417471.8A CN117161319B (en) | 2023-10-30 | 2023-10-30 | Module for solving cracking of investment casting manipulator shell and casting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117161319A CN117161319A (en) | 2023-12-05 |
| CN117161319B true CN117161319B (en) | 2024-01-23 |
Family
ID=88947010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311417471.8A Active CN117161319B (en) | 2023-10-30 | 2023-10-30 | Module for solving cracking of investment casting manipulator shell and casting method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117161319B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1364978A (en) * | 1972-01-31 | 1974-08-29 | Wade Son Ltd George | Feed devices for use in casting and methods od casting |
| RU2025193C1 (en) * | 1991-04-03 | 1994-12-30 | Научно-производственное объединение специальных способов литья | Set of patterns for making ceramic molds from dispensable patterns |
| FR2962057A1 (en) * | 2010-07-02 | 2012-01-06 | Peugeot Citroen Automobiles Sa | Fusible model for lost wax casting of a steel part for automobiles, comprises a first part modeling the steel part, a second part corresponding to a system for supplying the first part, where the second part comprises a descent casting |
| CN104889323A (en) * | 2015-05-06 | 2015-09-09 | 贵阳市新航铸造材料科技开发有限公司 | Ceramic sprue cup protective cover |
| CN105195673A (en) * | 2015-10-14 | 2015-12-30 | 江苏大学 | Investment casting method for double-metal composite splitting connection rod |
| CN105945258A (en) * | 2016-06-03 | 2016-09-21 | 扬州峰明金属制品有限公司 | Low-pressure fusible mold precise casting process |
| CN106734886A (en) * | 2017-01-23 | 2017-05-31 | 江苏永瀚特种合金技术有限公司 | A kind of method for preventing the formwork cracking during shell processed |
| CN207447278U (en) * | 2017-09-28 | 2018-06-05 | 河南平原光电科技有限公司 | A kind of casting sprue cup for facilitating suspension |
| CN213052634U (en) * | 2020-08-25 | 2021-04-27 | 河南平原光电有限公司 | Thin-wall shell casting module |
| CN113814355A (en) * | 2021-10-19 | 2021-12-21 | 中国航发沈阳黎明航空发动机有限责任公司 | Supporting system with exhaust and blocking and mixing functions |
| CN216226820U (en) * | 2021-10-29 | 2022-04-08 | 重庆三耐科技有限责任公司 | Sprue cup with rod and wax mold die thereof |
-
2023
- 2023-10-30 CN CN202311417471.8A patent/CN117161319B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1364978A (en) * | 1972-01-31 | 1974-08-29 | Wade Son Ltd George | Feed devices for use in casting and methods od casting |
| RU2025193C1 (en) * | 1991-04-03 | 1994-12-30 | Научно-производственное объединение специальных способов литья | Set of patterns for making ceramic molds from dispensable patterns |
| FR2962057A1 (en) * | 2010-07-02 | 2012-01-06 | Peugeot Citroen Automobiles Sa | Fusible model for lost wax casting of a steel part for automobiles, comprises a first part modeling the steel part, a second part corresponding to a system for supplying the first part, where the second part comprises a descent casting |
| CN104889323A (en) * | 2015-05-06 | 2015-09-09 | 贵阳市新航铸造材料科技开发有限公司 | Ceramic sprue cup protective cover |
| CN105195673A (en) * | 2015-10-14 | 2015-12-30 | 江苏大学 | Investment casting method for double-metal composite splitting connection rod |
| CN105945258A (en) * | 2016-06-03 | 2016-09-21 | 扬州峰明金属制品有限公司 | Low-pressure fusible mold precise casting process |
| CN106734886A (en) * | 2017-01-23 | 2017-05-31 | 江苏永瀚特种合金技术有限公司 | A kind of method for preventing the formwork cracking during shell processed |
| CN207447278U (en) * | 2017-09-28 | 2018-06-05 | 河南平原光电科技有限公司 | A kind of casting sprue cup for facilitating suspension |
| CN213052634U (en) * | 2020-08-25 | 2021-04-27 | 河南平原光电有限公司 | Thin-wall shell casting module |
| CN113814355A (en) * | 2021-10-19 | 2021-12-21 | 中国航发沈阳黎明航空发动机有限责任公司 | Supporting system with exhaust and blocking and mixing functions |
| CN216226820U (en) * | 2021-10-29 | 2022-04-08 | 重庆三耐科技有限责任公司 | Sprue cup with rod and wax mold die thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117161319A (en) | 2023-12-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101530892B (en) | Investment casting thin-walled part casting method | |
| CN103861999A (en) | Method for improving bottom deformation of multi-cavity ceramic die shell in directional solidification process | |
| CN109622883B (en) | Manufacturing method of ceramic core free end wax cap | |
| CN105499524B (en) | A kind of round steel casting method, cast dies and its holder device | |
| CN100519455C (en) | Glass utensil mould production method | |
| CN117161319B (en) | Module for solving cracking of investment casting manipulator shell and casting method | |
| CN113305268B (en) | Casting method of 12-cubic-meter slag ladle | |
| CN109822077B (en) | SiC prepared by extrusion infiltration method3DMethod for preparing/Al composite material | |
| CN107052226A (en) | A kind of end cap casting technique | |
| CN108927492A (en) | A kind of cast steel intermediate product of diesel engine manufacturing process | |
| CN107214318A (en) | A kind of metal liquid die forging process system | |
| CN112605342A (en) | Forming method of small-sized thin-wall stainless steel casting with complex cavity | |
| CN112823963A (en) | Method for solving choke of coupler knuckle | |
| CN1203945C (en) | Sand mould vacuum pressure casting technology and equipment | |
| CN110560636A (en) | Method for reducing shell cracking in investment casting process | |
| CN206936321U (en) | A kind of combining structure of metal liquid die forging | |
| CN101992286A (en) | Vacuum low-pressure casting method for casting copper impeller of water pump | |
| KR101755832B1 (en) | Method of manufacturing precision cast parts for vehicle exhaust system | |
| US3968827A (en) | Method of preparing ceramic casting moulds for pouring metal therein | |
| CN114192737B (en) | Ceramic salt core manufacturing process | |
| CN211464995U (en) | Continuous cutting device for tail of casting blank | |
| CN212371108U (en) | Gypsum forming die mechanism for vacuum casting | |
| RU2741044C1 (en) | Method for production of small-section casting bars and device for implementation thereof | |
| CN215587778U (en) | Large-scale wax matrix design turnover frock | |
| CN114799066B (en) | Alloy test bar manufacturing method and equipment |
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 |