CN112642991A - Propeller blade production process based on precision casting - Google Patents
Propeller blade production process based on precision casting Download PDFInfo
- Publication number
- CN112642991A CN112642991A CN202011453855.1A CN202011453855A CN112642991A CN 112642991 A CN112642991 A CN 112642991A CN 202011453855 A CN202011453855 A CN 202011453855A CN 112642991 A CN112642991 A CN 112642991A
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- CN
- China
- Prior art keywords
- wax
- module
- sand
- shell
- mould
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- 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.)
- Pending
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C7/00—Patterns; Manufacture thereof so far as not provided for in other classes
- B22C7/02—Lost patterns
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
- B22C9/04—Use of lost patterns
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The propeller blade production process based on precision casting comprises the following steps: (1) dehydrating wax materials; (2) pressing a wax mould; (3) pressing a die head; (4) trimming the wax mould; (5) welding the wax mold and the mold head; (6) cleaning the module; (7) manufacturing a shell; (8) dewaxing; (9) roasting the shell; (10) and (5) pouring the propeller blades. The lost wax casting has high dimensional accuracy, and the compression mould with high surface smoothness of a cavity is adopted when the investment pattern is pressed, so the surface smoothness of the wax mould is higher, and the lost wax casting has high dimensional accuracy and surface smoothness, so the machining work can be reduced.
Description
Technical Field
The invention relates to a propeller blade production process based on precision casting.
Background
The precision casting is also called lost wax casting, the product of the lost wax casting is precise and complex, is close to the final shape of a part, can be directly used without processing or with little processing, and is an advanced process for forming a near net shape. Lost wax casting generally refers to a casting scheme that a pattern is made of a fusible material, a plurality of layers of refractory materials are coated on the surface of the pattern to make a shell, the pattern is melted and discharged from the shell, so that a casting mold without a parting surface is obtained, and the casting mold can be filled with sand and poured after high-temperature roasting.
Disclosure of Invention
The invention aims to solve the defects of the prior art and provides a propeller blade production process based on precision casting.
The propeller blade production process based on precision casting comprises the following steps:
(1) dehydrating the wax material, placing the dehydrated wax material into a heat-insulating barrel, standing for a plurality of hours, and filling the standing wax material into a wax jar;
(2) installing a wax cylinder and a wax mould on a wax film injection machine, aligning the wax cylinder and the wax mould injection opening of the injection machine, and then starting to press the wax mould;
(3) installing a die head die on a wax film injection machine, aligning a wax injection nozzle of the injection machine with a wax injection opening of the die, and then starting to press the die head;
(4) taking out the pressed wax pattern, standing for several hours, detecting the size of the wax pattern, finishing the wax pattern which is qualified by detection, removing the residual edge of the wax pattern, breaking bubbles on the wax pattern, and repairing the concave part on the wax pattern;
(5) taking out the pressed die head, checking and removing unqualified products, and burning and welding the die head on a welding bead of the wax mould by using a soldering iron;
(6) immersing the welded module into cleaning liquid for cleaning, and drying by using an air gun;
(7) slowly immersing the cleaned module into the coating slurry to rotate, forming a complete and uniform coating on the module, extending the module with the coating into a sand spraying machine to turn over, uniformly coating a layer of sand on the surface of the module, immersing the module with the sand in silica sol for 1-2 seconds, taking out, immersing the module into the coating slurry, putting the module with the sand in a floating sand bucket to coat the sand, and drying for not less than 14 hours after the sand is coated;
(8) conveying the dried shell into a dewaxing steam kettle for dewaxing, and checking and repairing the dewaxed shell;
(9) placing the dewaxed shell into a roasting furnace for roasting, and checking whether the shell has cracks or not after roasting;
(10) and pouring metal liquid into the shell from the die head, and cooling to finish the casting of the propeller blade.
As a further improvement, a layer of parting agent is sprayed into the mould before pressing the wax mould.
As a further improvement, the cleaning solution contains alcohol.
As a further improvement, the maximum pressure for dewaxing is 0.75MPa, the dewaxing temperature is 170 ℃, and the dewaxing time is 10 minutes.
As a further improvement, the roasting temperature is 900-1100 ℃, and the roasting time is 25-60 minutes.
Has the advantages that:
the lost wax casting has high dimensional accuracy, and the compression mould with high surface smoothness of a cavity is adopted when the investment pattern is pressed, so the surface smoothness of the wax mould is higher, and the lost wax casting has high dimensional accuracy and surface smoothness, so the machining work can be reduced.
Detailed Description
The propeller blade production process based on precision casting comprises the following steps:
(1) dehydrating the wax material, placing the dehydrated wax material into a heat-insulating barrel, standing for a plurality of hours, and filling the standing wax material into a wax jar;
(2) installing a wax cylinder and a wax mould on a wax film injection machine, aligning the wax cylinder and the wax mould injection opening of the injection machine, and then starting to press the wax mould;
(3) installing a die head die on a wax film injection machine, aligning a wax injection nozzle of the injection machine with a wax injection opening of the die, and then starting to press the die head;
(4) taking out the pressed wax pattern, standing for several hours, detecting the size of the wax pattern, finishing the wax pattern which is qualified by detection, removing the residual edge of the wax pattern, breaking bubbles on the wax pattern, and repairing the concave part on the wax pattern;
(5) taking out the pressed die head, checking and removing unqualified products, and burning and welding the die head on a welding bead of the wax mould by using a soldering iron;
(6) immersing the welded module into cleaning liquid for cleaning, and drying by using an air gun;
(7) slowly immersing the cleaned module into the coating slurry to rotate, forming a complete and uniform coating on the module, extending the module with the coating into a sand spraying machine to turn over, uniformly coating a layer of sand on the surface of the module, immersing the module with the sand in silica sol for 1-2 seconds, taking out, immersing the module into the coating slurry, putting the module with the sand in a floating sand bucket to coat the sand, and drying for not less than 14 hours after the sand is coated;
(8) conveying the dried shell into a dewaxing steam kettle for dewaxing, and checking and repairing the dewaxed shell;
(9) placing the dewaxed shell into a roasting furnace for roasting, and checking whether the shell has cracks or not after roasting;
(10) and pouring metal liquid into the shell from the die head, and cooling to finish the casting of the propeller blade.
Wherein, a layer of parting agent is needed to be sprayed into the mould before pressing the wax mould.
Wherein the cleaning liquid is alcohol.
Wherein the dewaxing maximum pressure is 0.75Mpa, the dewaxing temperature is 170 ℃, and the dewaxing time is 10 minutes.
Wherein the roasting temperature is 900-1100 ℃, and the roasting time is 25-60 minutes.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (5)
1. The propeller blade production process based on precision casting is characterized by comprising the following steps of:
(1) dehydrating the wax material, placing the dehydrated wax material into a heat-insulating barrel, standing for a plurality of hours, and filling the standing wax material into a wax jar;
(2) installing a wax cylinder and a wax mould on a wax film injection machine, aligning the wax cylinder and the wax mould injection opening of the injection machine, and then starting to press the wax mould;
(3) installing a die head die on a wax film injection machine, aligning a wax injection nozzle of the injection machine with a wax injection opening of the die, and then starting to press the die head;
(4) taking out the pressed wax pattern, standing for several hours, detecting the size of the wax pattern, finishing the wax pattern which is qualified by detection, removing the residual edge of the wax pattern, breaking bubbles on the wax pattern, and repairing the concave part on the wax pattern;
(5) taking out the pressed die head, checking and removing unqualified products, and burning and welding the die head on a welding bead of the wax mould by using a soldering iron;
(6) immersing the welded module into cleaning liquid for cleaning, and drying by using an air gun;
(7) slowly immersing the cleaned module into the coating slurry to rotate, forming a complete and uniform coating on the module, extending the module with the coating into a sand spraying machine to turn over, uniformly coating a layer of sand on the surface of the module, immersing the module with the sand in silica sol for 1-2 seconds, taking out, immersing the module into the coating slurry, putting the module with the sand in a floating sand bucket to coat the sand, and drying for not less than 14 hours after the sand is coated;
(8) conveying the dried shell into a dewaxing steam kettle for dewaxing, and checking and repairing the dewaxed shell;
(9) placing the dewaxed shell into a roasting furnace for roasting, and checking whether the shell has cracks or not after roasting;
(10) and pouring metal liquid into the shell from the die head, and cooling to finish the casting of the propeller blade.
2. The process for producing a propeller blade based on precision casting according to claim 1, wherein a layer of parting agent is sprayed into the mold before pressing the wax pattern.
3. The process for producing propeller blades based on precision casting according to claim 1, wherein the cleaning solution contains alcohol.
4. The process for producing a propeller blade based on precision casting according to claim 1, wherein the maximum pressure for dewaxing is 0.75Mpa, the dewaxing temperature is 170 ℃, and the dewaxing time is 10 minutes.
5. The process for producing propeller blades based on precision casting according to claim 1, wherein the firing temperature is 900 to 1100 ℃ and the firing time is 25 to 60 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011453855.1A CN112642991A (en) | 2020-12-10 | 2020-12-10 | Propeller blade production process based on precision casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011453855.1A CN112642991A (en) | 2020-12-10 | 2020-12-10 | Propeller blade production process based on precision casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112642991A true CN112642991A (en) | 2021-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011453855.1A Pending CN112642991A (en) | 2020-12-10 | 2020-12-10 | Propeller blade production process based on precision casting |
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| Country | Link |
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| CN (1) | CN112642991A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114160759A (en) * | 2021-12-06 | 2022-03-11 | 嘉兴市佳特金属制品股份有限公司 | Production process of connecting sleeve |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1157938A (en) * | 1997-08-08 | 1999-03-02 | Nippon Yakin Kogyo Co Ltd | Manufacture of mold for precision casting and device for applying slurry |
| CN101147954A (en) * | 2007-10-29 | 2008-03-26 | 福建省建阳市汽车锻压件厂 | Investment precision casting technology for producing automobile I-shaped front axle |
| CN103537618A (en) * | 2013-10-14 | 2014-01-29 | 付绍森 | Carpentry cutter body manufacturing process |
| CN104826994A (en) * | 2015-05-13 | 2015-08-12 | 吴光英 | Precision casting method of melting mold |
| CN105483440A (en) * | 2015-12-29 | 2016-04-13 | 青岛博泰美联化工技术有限公司 | Environment-friendly type preparation method for automobile engine blade |
| CN105499505A (en) * | 2016-02-17 | 2016-04-20 | 屏山县天成精密铸造有限责任公司 | Manufacturing method for precision casting mould |
| CN110090923A (en) * | 2019-05-22 | 2019-08-06 | 惠州市惠阳广杰五金制品有限公司 | A kind of handware casting technique |
-
2020
- 2020-12-10 CN CN202011453855.1A patent/CN112642991A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1157938A (en) * | 1997-08-08 | 1999-03-02 | Nippon Yakin Kogyo Co Ltd | Manufacture of mold for precision casting and device for applying slurry |
| CN101147954A (en) * | 2007-10-29 | 2008-03-26 | 福建省建阳市汽车锻压件厂 | Investment precision casting technology for producing automobile I-shaped front axle |
| CN103537618A (en) * | 2013-10-14 | 2014-01-29 | 付绍森 | Carpentry cutter body manufacturing process |
| CN104826994A (en) * | 2015-05-13 | 2015-08-12 | 吴光英 | Precision casting method of melting mold |
| CN105483440A (en) * | 2015-12-29 | 2016-04-13 | 青岛博泰美联化工技术有限公司 | Environment-friendly type preparation method for automobile engine blade |
| CN105499505A (en) * | 2016-02-17 | 2016-04-20 | 屏山县天成精密铸造有限责任公司 | Manufacturing method for precision casting mould |
| CN110090923A (en) * | 2019-05-22 | 2019-08-06 | 惠州市惠阳广杰五金制品有限公司 | A kind of handware casting technique |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114160759A (en) * | 2021-12-06 | 2022-03-11 | 嘉兴市佳特金属制品股份有限公司 | Production process of connecting sleeve |
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