CN201470860U - Ship propeller casting and pouring system - Google Patents
Ship propeller casting and pouring system Download PDFInfo
- Publication number
- CN201470860U CN201470860U CN 200920143769 CN200920143769U CN201470860U CN 201470860 U CN201470860 U CN 201470860U CN 200920143769 CN200920143769 CN 200920143769 CN 200920143769 U CN200920143769 U CN 200920143769U CN 201470860 U CN201470860 U CN 201470860U
- Authority
- CN
- China
- Prior art keywords
- mud core
- casting
- seal
- cover
- propeller
- 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.)
- Expired - Lifetime
Links
- 238000005266 casting Methods 0.000 title claims abstract description 30
- 239000004576 sand Substances 0.000 claims abstract description 28
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 15
- 239000010959 steel Substances 0.000 claims abstract description 15
- 238000002347 injection Methods 0.000 claims abstract description 8
- 239000007924 injection Substances 0.000 claims abstract description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 12
- 229910002804 graphite Inorganic materials 0.000 claims description 12
- 239000010439 graphite Substances 0.000 claims description 12
- 238000010791 quenching Methods 0.000 claims description 11
- 230000000630 rising effect Effects 0.000 claims description 6
- 230000002459 sustained effect Effects 0.000 claims description 3
- 239000002184 metal Substances 0.000 abstract description 16
- 229910052751 metal Inorganic materials 0.000 abstract description 16
- 239000000463 material Substances 0.000 abstract description 4
- 229910001338 liquidmetal Inorganic materials 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 abstract 1
- 238000011084 recovery Methods 0.000 description 6
- 239000002893 slag Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000001141 propulsive effect Effects 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
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- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The utility model discloses a ship propeller casting and pouring system, which comprises a closed pressure tank (11), a ladle (10) at the inner part of the closed pressure tank (11) for accommodating high-temperature molten steel (8), a lift tube (7) extending into the ladle (10), a gas injection mechanism communicated with the inner part of the closed pressure tank (11), and a sand mold (2) and an even core (3) at the top end of the closed pressure tank (11), wherein, the sand mold (2) and the even core (3) form a cavity (14) and a feeder head (1), and the top end of the lift tube (7) is communicated with the cavity (14). The system adopting the structure has the advantages of steady mold filling of liquid metal, and high formability, compact structure and high mechanical performance of castings, thereby ensuring the quality of a cast ship propeller; the consumption quantity of metal liquid is reduced, and the yield rate thereof is improved; and furthermore, the system is applicable to the casting of various materials and batches.
Description
Technical field
The utility model relates to system for casting and pouring propeller of ship.
Background technology
Propeller for vessels is one of vitals of ship-related products, and particularly the military products screw not only will have good corrosion resisting property, and mechanical performance does not allow casting flaws such as oxide slag inclusion, pore simultaneously.Propeller for vessels can be regarded the wing that an one side rotation one side is advanced as, in seawater, rotate the parts that engine rotation power are converted into propulsive force by blade, it is made up of the propeller hub of a plurality of blades and central authorities, blade is installed on the propeller hub as a slender wing that reverses, and engine shaft is connected with propeller hub and drives its rotation.Propeller for vessels adopts gravitational casting at present, and running gate system need be provided with down gate, runner gate and slag trap, foundry goods is easy to generate defectives such as oxide slag inclusion, shrinkage porosite, the propeller for vessels casting quality is difficult to guarantee that the molten metal consumption is bigger that the recovery rate of molten metal is lower.
The utility model content
Technical problem to be solved in the utility model provides a kind of system for casting and pouring propeller of ship, and this kind system for casting and pouring propeller of ship has reduced the molten metal consumption, has improved the recovery rate of molten metal, can guarantee the propeller for vessels casting quality.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of system for casting and pouring propeller of ship, it comprises that seal-off pressure jar, seal-off pressure jar inside hold the steel ladle of high-temperature molten steel, extend into the sand mold and the mud core of the stalk in the steel ladle, the gas injection mechanism that is passed into the seal-off pressure jar, seal-off pressure upper end, described sand mold and mud core form die cavity and rising head, and the top of described stalk communicates with die cavity.
Have the graphite Quench cover, mud core sand cover and watt lobe mud core box that stack between the below of described mud core and the seal-off pressure tank top, mud core sand cover is positioned at the top of graphite Quench cover, graphite Quench cover and mud core sand cover have the through hole that stalk passes, form watt lobe cast gate that communicates with die cavity between sand mold, mud core sand cover and watt lobe mud core box, the top of stalk is communicated with a watt lobe cast gate.
Described gas injection mechanism comprises compressed air inlet pipe and the compressed air escape pipe that is communicated in seal-off pressure jar middle part sustained height.
The utility model system for casting and pouring propeller of ship adopts such structure, and it is steady that liquid metals fills type, and casting forming is good, foundry goods dense structure, and the mechanical performance height can guarantee the propeller for vessels casting quality; Reduce the molten metal consumption, improved the recovery rate of molten metal; Be applicable to various materials and batch casting mold.
Description of drawings
Below in conjunction with accompanying drawing the utility model system for casting and pouring propeller of ship is described in further detail;
Fig. 1 is the utility model system for casting and pouring propeller of ship structural representation;
In Fig. 1,1, rising head; 2, sand mold; 3, mud core; 4, watt lobe mud core box; 5, mud core sand cover; 6, graphite Quench cover; 7, stalk; 8, high-temperature molten steel; 9, compressed air inlet pipe; 10, steel ladle; 11, seal-off pressure jar; 12, compressed air escape pipe; 13, watt lobe cast gate; 14, die cavity.
The specific embodiment
As shown in Figure 1, system for casting and pouring propeller of ship comprises seal-off pressure jar 11, steel ladle 10, stalk 7, gas injection mechanism, graphite Quench cover 6, mud core sand cover 5, watt lobe mud core box 4, mud core 3 and sand mold 2, gas injection mechanism comprises compressed air inlet pipe 9 and the compressed air escape pipe 12 that is communicated in seal-off pressure jar 11 middle part sustained heights, steel ladle 10 places in the seal-off pressure jar 11, stalk 7 extend in the steel ladle 10 that can hold high-temperature molten steel 8, sand mold 2 and between the mud core 3 at sand mold 2 centers, form the rising head 1 on die cavity 14 and die cavity 14 tops, has the graphite Quench cover 6 that stacks between seal-off pressure jar 11 tops and the mud core 3, mud core sand cover 5 and watt lobe mud core box 4, mud core sand cover 5 is positioned at the top of graphite Quench cover 6, graphite Quench cover 6 and mud core sand cover 5 have the through hole that stalk 7 passes, sand mold 2, form watt lobe cast gate 13 that communicates with die cavity 14 between mud core sand cover 5 and watt lobe mud core box 4, the top of stalk 7 is communicated with a watt lobe cast gate 13.
Gas injection mechanism feeds dry compressed air to seal-off pressure jar 11, makes pressure increase in the seal-off pressure jar 11, and the high-temperature molten steels 8 in the steel ladle 10 inject die cavity 14 in the pressure effect from bottom to top reposefully through watt lobe cast gate 13.The utility model system for casting and pouring propeller of ship advantage is as follows:
1, to fill type steady for liquid metals, low pressure casting is under extraneous gas pressure effect, molten metal rising pouring from bottom to top, we adopt watt lobe formula cast gate, can control filling velocity effectively, make molten metal inject die cavity very reposefully, when having avoided gravity-assist pouring owing to impacting and seethe the secondary oxidation slag inclusion that produces, thereby obtain superior in quality foundry goods.Watt lobe cast gate can be introduced the copper aqueous dispersion each sheet blade of screw equably, and the effect of coolant jacket can be controlled poring rate, so that in time casting mold is separated with pressurized tank.
2, casting forming is good, helps forming the foundry goods of clear-cut, any surface finish, and is more favourable for the shaping of screw thin-section casting.
3, foundry goods dense structure, the mechanical performance height, the crystallization and freezing process of foundry goods is to carry out under given pressure, molten metal is under certain gas pressure, transmission by stalk and running gate system, when being shunk, casting solidification obtains good feeding, resulting foundry goods dense structure, and mechanical property ratio is much higher when gravity is poured into a mould.
4. improved the technology recovery rate of molten metal, running gate system does not need very big rising head, and the recovery rate of molten metal is improved greatly, simplified running gate system, saved material, do not needed to be provided with down gate, runner gate and slag trap, molten metal directly enters stalk, enter propeller hub by a watt lobe cast gate, enter the blade each several part stably, reduced the workload of moulding, and reduced the molten metal consumption, the recovery rate of molten metal is improved greatly.
5. be applicable to the casting mold of various materials, be not subjected to the restriction of production lot, the running gate system of this structural design is not only applicable to metal mold, and can use graphite mould and various sand mold, and its application is not subjected to the restriction of production lot, no matter produce by batch, or single-piece production can be adopted.
Claims (3)
1. system for casting and pouring propeller of ship, it is characterized in that: it comprises, and seal-off pressure jar (11), seal-off pressure jar (11) inside hold the steel ladle (10) of high-temperature molten steel (8), extend into the stalk (7) in the steel ladle (10), the sand mold (2) and the mud core (3) on the gas injection mechanism that is passed into seal-off pressure jar (11), seal-off pressure jar (11) top, described sand mold (2) and mud core (3) form die cavity (14) and rising head (1), and the top of described stalk (7) communicates with die cavity (14).
2. system for casting and pouring propeller of ship according to claim 1, it is characterized in that: have the graphite Quench cover (6) that stacks between the below of described mud core (3) and seal-off pressure jar (11) top, mud core sand cover (5) and watt lobe mud core box (4), mud core sand cover (5) is positioned at the top of graphite Quench cover (6), graphite Quench cover (6) and mud core sand cover (5) have the through hole that stalk (7) passes, sand mold (2), form watt lobe cast gate (13) that communicates with die cavity (14) between mud core sand cover (5) and watt lobe mud core box (4), the top of stalk (7) is communicated with a watt lobe cast gate (13).
3. system for casting and pouring propeller of ship according to claim 1 is characterized in that: described gas injection mechanism comprises compressed air inlet pipe (9) and the compressed air escape pipe (12) that is communicated in seal-off pressure jar (11) middle part sustained height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920143769 CN201470860U (en) | 2009-04-08 | 2009-04-08 | Ship propeller casting and pouring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920143769 CN201470860U (en) | 2009-04-08 | 2009-04-08 | Ship propeller casting and pouring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201470860U true CN201470860U (en) | 2010-05-19 |
Family
ID=42407100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920143769 Expired - Lifetime CN201470860U (en) | 2009-04-08 | 2009-04-08 | Ship propeller casting and pouring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201470860U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104889362A (en) * | 2015-06-03 | 2015-09-09 | 天津市航宇金属加工有限公司 | Low-pressure metal casting die |
| CN105436412A (en) * | 2015-11-23 | 2016-03-30 | 镇江同舟螺旋桨有限公司 | Novel propeller casting mold nitrogen charging system |
| CN107511468A (en) * | 2017-09-05 | 2017-12-26 | 哈尔滨工业大学 | Large ship copper alloy propeller antigravity shapes air cooling larynx cut-off and rises liquid method |
| CN108838373A (en) * | 2018-07-31 | 2018-11-20 | 哈尔滨工业大学 | A kind of large ship copper alloy propeller double-station antigravity casting machine |
-
2009
- 2009-04-08 CN CN 200920143769 patent/CN201470860U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104889362A (en) * | 2015-06-03 | 2015-09-09 | 天津市航宇金属加工有限公司 | Low-pressure metal casting die |
| CN104889362B (en) * | 2015-06-03 | 2017-10-10 | 天津市航宇嘉瑞科技股份有限公司 | A kind of low pressure metal casting mould |
| CN105436412A (en) * | 2015-11-23 | 2016-03-30 | 镇江同舟螺旋桨有限公司 | Novel propeller casting mold nitrogen charging system |
| CN107511468A (en) * | 2017-09-05 | 2017-12-26 | 哈尔滨工业大学 | Large ship copper alloy propeller antigravity shapes air cooling larynx cut-off and rises liquid method |
| CN108838373A (en) * | 2018-07-31 | 2018-11-20 | 哈尔滨工业大学 | A kind of large ship copper alloy propeller double-station antigravity casting machine |
| CN108838373B (en) * | 2018-07-31 | 2020-06-09 | 哈尔滨工业大学 | Copper alloy screw double-station antigravity casting machine for large ship |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: WUHU FUJIHENG MACHINERY CO., LTD. Free format text: FORMER OWNER: WUHU XINLIAN SHIPBUILDING CO., LTD. Effective date: 20140328 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20140328 Address after: 241001 Linjiang Industrial Zone, three hills area, Anhui, Wuhu Patentee after: Wuhu Fujiheng Machinery Co., Ltd. Address before: 241001 No. 53 Changjiang South Road, Jinghu District, Anhui, Wuhu Patentee before: Wuhu Xinlian Shipbuilding Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20100519 |
|
| CX01 | Expiry of patent term |