CN111377043A - Propeller casting process and propeller - Google Patents
Propeller casting process and propeller Download PDFInfo
- Publication number
- CN111377043A CN111377043A CN202010217504.4A CN202010217504A CN111377043A CN 111377043 A CN111377043 A CN 111377043A CN 202010217504 A CN202010217504 A CN 202010217504A CN 111377043 A CN111377043 A CN 111377043A
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- CN
- China
- Prior art keywords
- casting
- propeller
- casting process
- percent
- blade
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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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H1/00—Propulsive elements directly acting on water
- B63H1/02—Propulsive elements directly acting on water of rotary type
- B63H1/12—Propulsive elements directly acting on water of rotary type with rotation axis substantially in propulsive direction
- B63H1/14—Propellers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Ocean & Marine Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses a propeller casting process and a propeller, wherein the propeller casting process comprises the following steps: smelting the blank material, and then casting and molding to respectively obtain a blade casting and a hub casting; ultrasonically cleaning the blade casting and the hub casting, and then carrying out electrolytic grinding; welding the blade casting and the hub casting according to the drawing size to obtain a propeller blank; and spraying waterproof paint on the screw blank, and then drying. The casting process adopts a split casting and re-welding method to cast the propeller, so that the process difficulty is reduced, the controllability is improved, and the mechanical performance of the manufactured propeller can be effectively guaranteed.
Description
Technical Field
The invention relates to the field of propellers, in particular to a propeller casting process and a propeller.
Background
The propeller is a device which rotates in the air or water by means of blades and converts the rotating power of an engine into propulsive force, and can be a propeller with two or more blades connected with a hub, wherein the backward surface of each blade is a spiral surface or a surface similar to the spiral surface. The propellers are divided into a plurality of types and are widely applied, such as propellers of aircrafts and ships. Along with the manufacture of the propellers becoming bigger and bigger, the process of one-step casting molding is difficult, the controllability is low, and the mechanical performance of the manufactured propellers is difficult to guarantee.
Disclosure of Invention
The invention aims to provide a propeller casting process and a propeller, and solves the problems that in the propeller manufacturing process, the process of one-step casting molding is difficult, the controllability is low, and the mechanical property of the manufactured propeller is difficult to guarantee.
In order to achieve the above object, the present invention provides a propeller casting process, including:
(1) smelting the blank material, and then casting and molding to respectively obtain a blade casting and a hub casting;
(2) ultrasonically cleaning the blade casting and the hub casting, and then carrying out electrolytic grinding;
(3) welding the blade casting and the hub casting according to the drawing size to obtain a propeller blank;
(4) and spraying waterproof paint on the screw blank, and then drying.
Preferably, in step (1), the smelting conditions include: the temperature is 1000 ℃ and 1200 ℃, and the time is 10-20 min.
Preferably, the green body material comprises: 0.2 to 0.4 percent of carbon, 1.2 to 1.5 percent of zinc, 2 to 4 percent of nickel, 1 to 4 percent of copper, 0.4 to 0.7 percent of manganese, 0.1 to 0.4 percent of silicon and the balance of iron.
Preferably, in the step (2), the ultrasonic cleaning conditions include: the ultrasonic frequency is 10-20Hz, the time is 5-15min, and the temperature is 60-80 ℃.
Preferably, the step of electropolishing comprises: placing the blade casting and the hub casting into a mixed solution of phosphoric acid and sulfuric acid at 40-50 ℃ at a ratio of 4A/dm to 10A/dm2The electrolytic polishing is carried out for 2 times-8min。
Preferably, the phosphoric acid and the sulfuric acid are mixed in a volume ratio of 1: 2-3.
Preferably, the concentration by volume of phosphoric acid is 40-50% and the concentration by volume of sulfuric acid is 30-35%.
Preferably, the drying treatment conditions include a temperature of 100-120 ℃ and a time of 1-2 h.
Preferably, the thickness of the spray waterproof paint is 2-4 mm.
The invention also provides a propeller, which is prepared by the casting process.
According to the technical scheme, the invention provides a propeller casting process, which comprises the following steps: smelting the blank material, and then casting and molding to respectively obtain a blade casting and a hub casting; ultrasonically cleaning the blade casting and the hub casting, and then carrying out electrolytic grinding; welding the blade casting and the hub casting according to the drawing size to obtain a propeller blank; and spraying waterproof paint on the screw blank, and then drying. The casting process adopts a split casting and re-welding method to cast the propeller, so that the process difficulty is reduced, the controllability is improved, and the mechanical performance of the manufactured propeller can be effectively guaranteed.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Detailed Description
The following describes in detail specific embodiments of the present invention. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
Example 1
Smelting the blank material (the smelting condition comprises that the temperature is 1000 ℃, and the time is 10min), and then casting and molding to respectively obtain a blade casting and a hub casting; carrying out ultrasonic cleaning on the blade casting and the hub casting (ultrasonic frequency is 10Hz, time is 5min and temperature is 60 ℃), and then carrying out electrolytic grinding; the blade casting and the shaft hub casting are fed according to the drawing sizeWelding to obtain a propeller blank; and (3) spraying waterproof paint on the screw blank, and then drying (the temperature is 100 ℃ and the time is 1 h). Wherein the green body material comprises: 0.2% of carbon, 1.2% of zinc, 2% of nickel, 1% of copper, 0.4% of manganese, 0.1% of silicon and the balance of iron. Wherein the step of electrolytic grinding comprises: placing the blade casting and the hub casting into a mixed solution of phosphoric acid and sulfuric acid (the phosphoric acid and the sulfuric acid are mixed according to a volume ratio of 1: 2), wherein the volume concentration of the phosphoric acid is 40 percent, the volume concentration of the sulfuric acid is 30 percent, and the volume concentration is 4A/dm at 40 DEG C2The electrolytic polishing treatment was carried out with the electrolytic polishing time being 2 min.
Example 2
Smelting the blank material (the smelting condition comprises that the temperature is 1200 ℃ and the time is 20min), and then casting and molding to respectively obtain a blade casting and a shaft hub casting; ultrasonically cleaning the blade casting and the hub casting (ultrasonic frequency is 20Hz, time is 15min and temperature is 80 ℃), and then electrolytically grinding; welding the blade casting and the hub casting according to the drawing size to obtain a propeller blank; and (3) spraying waterproof paint on the screw blank, and then drying (at the temperature of 120 ℃ for 2 h). Wherein the green body material comprises: 0.4% of carbon, 1.5% of zinc, 4% of nickel, 4% of copper, 0.7% of manganese, 0.4% of silicon and the balance of iron. Wherein the step of electrolytic grinding comprises: placing the blade casting and the hub casting into a mixed solution of phosphoric acid and sulfuric acid (the phosphoric acid and the sulfuric acid are mixed according to a volume ratio of 1: 3), wherein the volume concentration of the phosphoric acid is 50 percent, the volume concentration of the sulfuric acid is 35 percent, and the volume concentration is 10A/dm at 50 DEG C2The electrolytic polishing treatment was carried out with the electrolytic polishing time being 8 min.
Example 3
Smelting the blank material (the smelting condition comprises that the temperature is 1100 ℃ and the time is 15min), and then casting and molding to respectively obtain a blade casting and a hub casting; ultrasonically cleaning the blade casting and the hub casting (the ultrasonic frequency is 15Hz, the time is 7min, and the temperature is 70 ℃), and then carrying out electrolytic grinding; welding the blade casting and the shaft hub casting according to the drawing size to obtain a propeller blankA body; and (3) spraying waterproof paint on the screw blank, and then drying (the temperature is 110 ℃, and the time is 1.5 h). Wherein the green body material comprises: 0.3% of carbon, 1.3% of zinc, 3% of nickel, 2.5% of copper, 0.5% of manganese, 0.3% of silicon and the balance of iron. Wherein the step of electrolytic grinding comprises: placing the blade casting and the hub casting into a mixed solution of phosphoric acid and sulfuric acid (the phosphoric acid and the sulfuric acid are mixed according to a volume ratio of 1: 2.5), wherein the volume concentration of the phosphoric acid is 45 percent, the volume concentration of the sulfuric acid is 32 percent, and the volume concentration is 6A/dm at 45 DEG C2The electrolytic polishing treatment was carried out for 5 min.
The preferred embodiments of the present invention have been described in detail, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (10)
1. A propeller casting process, comprising:
(1) smelting the blank material, and then casting and molding to respectively obtain a blade casting and a hub casting;
(2) ultrasonically cleaning the blade casting and the hub casting, and then carrying out electrolytic grinding;
(3) welding the blade casting and the hub casting according to the drawing size to obtain a propeller blank;
(4) and spraying waterproof paint on the screw blank, and then drying.
2. The propeller casting process of claim 1, wherein in step (1), the conditions of smelting comprise: the temperature is 1000 ℃ and 1200 ℃, and the time is 10-20 min.
3. A propeller casting process according to claim 2, wherein the green body material comprises: 0.2 to 0.4 percent of carbon, 1.2 to 1.5 percent of zinc, 2 to 4 percent of nickel, 1 to 4 percent of copper, 0.4 to 0.7 percent of manganese, 0.1 to 0.4 percent of silicon and the balance of iron.
4. The propeller casting process of claim 1, wherein in step (2), the conditions of ultrasonic cleaning comprise: the ultrasonic frequency is 10-20Hz, the time is 5-15min, and the temperature is 60-80 ℃.
5. The propeller casting process of claim 1, wherein the step of electropolishing comprises: placing the blade casting and the hub casting into a mixed solution of phosphoric acid and sulfuric acid at 40-50 ℃ at a ratio of 4A/dm to 10A/dm2The electrolytic grinding is carried out for 2-8 min.
6. The propeller casting process of claim 5, wherein the phosphoric acid and the sulfuric acid are mixed in a volume ratio of 1: 2-3.
7. A propeller casting process according to claim 6, wherein the concentration by volume of phosphoric acid is 40-50% and the concentration by volume of sulphuric acid is 30-35%.
8. The propeller casting process according to claim 1, wherein the drying treatment conditions comprise a temperature of 100 ℃ and a temperature of 120 ℃ for 1-2 hours.
9. A propeller casting process according to claim 1, wherein the sprayed waterproof paint has a thickness of 2-4 mm.
10. A propeller, characterized in that it is manufactured by a casting process according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010217504.4A CN111377043A (en) | 2020-03-25 | 2020-03-25 | Propeller casting process and propeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010217504.4A CN111377043A (en) | 2020-03-25 | 2020-03-25 | Propeller casting process and propeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111377043A true CN111377043A (en) | 2020-07-07 |
Family
ID=71215619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010217504.4A Pending CN111377043A (en) | 2020-03-25 | 2020-03-25 | Propeller casting process and propeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111377043A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6411065A (en) * | 1987-07-02 | 1989-01-13 | Mitsubishi Heavy Ind Ltd | Production of marine propeller having corrosion resistance and high strength |
| JPH02209453A (en) * | 1989-02-09 | 1990-08-20 | Mitsubishi Heavy Ind Ltd | Erosion-resistant propeller material for marine |
| CN104630547A (en) * | 2015-03-10 | 2015-05-20 | 镇江中船瓦锡兰螺旋桨有限公司 | High-mechanical property propeller manufacturing material and machining process method |
| CN105015744A (en) * | 2015-06-08 | 2015-11-04 | 广西雅力耐磨材料有限公司 | Method for manufacturing ship propeller |
| CN105195681A (en) * | 2015-08-31 | 2015-12-30 | 苏州金业船用机械厂 | Large ship propeller casting technology |
| CN105908008A (en) * | 2016-06-25 | 2016-08-31 | 聂超 | Ship propeller high-strength casting material and casting process thereof |
| CN106676364A (en) * | 2016-12-14 | 2017-05-17 | 张家港市广大机械锻造有限公司 | Alloy used for manufacturing ship propeller shaft |
| CN106756209A (en) * | 2016-12-08 | 2017-05-31 | 安徽睿知信信息科技有限公司 | A kind of high intensity wheel hub founding materials and its casting technique |
| CN107254615A (en) * | 2017-06-27 | 2017-10-17 | 南京律智诚专利技术开发有限公司 | A kind of alloy for being used to cast foreign-going ship propeller |
-
2020
- 2020-03-25 CN CN202010217504.4A patent/CN111377043A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6411065A (en) * | 1987-07-02 | 1989-01-13 | Mitsubishi Heavy Ind Ltd | Production of marine propeller having corrosion resistance and high strength |
| JPH02209453A (en) * | 1989-02-09 | 1990-08-20 | Mitsubishi Heavy Ind Ltd | Erosion-resistant propeller material for marine |
| CN104630547A (en) * | 2015-03-10 | 2015-05-20 | 镇江中船瓦锡兰螺旋桨有限公司 | High-mechanical property propeller manufacturing material and machining process method |
| CN105015744A (en) * | 2015-06-08 | 2015-11-04 | 广西雅力耐磨材料有限公司 | Method for manufacturing ship propeller |
| CN105195681A (en) * | 2015-08-31 | 2015-12-30 | 苏州金业船用机械厂 | Large ship propeller casting technology |
| CN105908008A (en) * | 2016-06-25 | 2016-08-31 | 聂超 | Ship propeller high-strength casting material and casting process thereof |
| CN106756209A (en) * | 2016-12-08 | 2017-05-31 | 安徽睿知信信息科技有限公司 | A kind of high intensity wheel hub founding materials and its casting technique |
| CN106676364A (en) * | 2016-12-14 | 2017-05-17 | 张家港市广大机械锻造有限公司 | Alloy used for manufacturing ship propeller shaft |
| CN107254615A (en) * | 2017-06-27 | 2017-10-17 | 南京律智诚专利技术开发有限公司 | A kind of alloy for being used to cast foreign-going ship propeller |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200707 |
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| RJ01 | Rejection of invention patent application after publication |