CN201217019Y - Mould for semi-solid state extrusion casting aluminum alloy piston - Google Patents

Mould for semi-solid state extrusion casting aluminum alloy piston Download PDF

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Publication number
CN201217019Y
CN201217019Y CNU2008200809092U CN200820080909U CN201217019Y CN 201217019 Y CN201217019 Y CN 201217019Y CN U2008200809092 U CNU2008200809092 U CN U2008200809092U CN 200820080909 U CN200820080909 U CN 200820080909U CN 201217019 Y CN201217019 Y CN 201217019Y
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CN
China
Prior art keywords
die
mould
punch
piston
counterdie
Prior art date
Application number
CNU2008200809092U
Other languages
Chinese (zh)
Inventor
卢德宏
蒋业华
周荣
Original Assignee
昆明理工大学
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Priority to CNU2008200809092U priority Critical patent/CN201217019Y/en
Application granted granted Critical
Publication of CN201217019Y publication Critical patent/CN201217019Y/en

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Abstract

The utility model provides a die for casting an aluminum alloy piston by semi-solid extrusion. The die comprises an upper die which is provided with a male die, a lower die which is provided with a female die, and a material discharging subassembly which is provided with an ejector rod and a release link. The die is characterized in that heating elements are respectively arranged in the male die of the upper die and the female die of the lower die. The male die and the female die can be respectively preheated, thus solving the problem that due to low temperature, semi-solid slurry solidifies quickly before the male die exerts pressure, which influences the subsequent molding process and leads to poor pressing effect. In the following continuous production, whether to continue to heat can be decided according to the temperature of the die so as to save energy. A high-quality piston casting with stable size without shrinkage porosity and pores can be obtained, and the casting can be processed into a piston product only through a small amount of mechanical machining. The die is high in precision and successfully realizes continuous extrusion casting of semi-solid aluminum alloy pistons.

Description

The mould of semisolid extrusion casint all-aluminium piston
Technical field
The utility model relates to the mould of a kind of semisolid extrusion casint with all-aluminium piston.
Background technology
Semisolid is a kind of new type fittings forming technique in conjunction with high-pressure casting or squeeze casting technology, compares with traditional full liquid cast, and it is low to have operating temperature, the mold hot load is little, and the goods microscopic structure is more tiny evenly, and defective and segregation are still less, therefore performance is higher, near all solid state forging and pressing.But the report that does not also have semi-solid state forming technique practical application on piston at present.Wherein, mould is a key problem in technology problem.In common extrusion casint, because the thickness of each vertical section of piston differs greatly, the liquid aluminium metal is very big to the calcining temperature shrinkage factor from high temperature, and these all cause the piston foundry goods to occur defectives such as shrinkage porosite and pore easily, it is big that the while mould is subjected to thermal shock, unfavorable to service life.And use semi solid slurry to carry out extrusion casint, and can alleviate above-mentioned many difficulties, help improving the quality and the performance of piston foundry goods.But simultaneously, because the semi solid slurry pouring temperature is lower, solidify soon, stricter than conventional cast to the temperature requirement of mould, forming pressure is bigger.Simultaneously, direct-type extrusion casint all has the problem of casting dimension less stable.Therefore, be necessary fully existing mold is improved.
Summary of the invention
For overcoming the lower deficiency that is difficult to finish the semi solid slurry casting of existing Piston mould Yin Wendu, the utility model provides a kind of mould of semisolid extrusion casint all-aluminium piston.
The utility model is realized by following technical proposal: a kind of mould of semisolid extrusion casint all-aluminium piston, comprise the patrix of being with punch, counterdie with the band die, and the discharge component of band knock-pin and release link, it is characterized in that being respectively equipped with heating member in the punch of patrix and on the die of counterdie, so that the semi-solid aluminium alloy injection moulding is caused piston with protruding, the die of being with temperature.
Heating member in the described patrix punch is an electrically heated rod, vertically is located at the punch middle part, so that the heating punch.
Heating member on the described counterdie die is an electric heating wire, is around on the outer wall of die, so that the heating die.
The punch of described patrix is provided with upper holder block outward successively, goes up framed and guide pin bushing, and their top is provided with upper cover plate, so that improve the quality of fit of upper and lower mould, guarantees casting quality.
The die of described counterdie is provided with low mold frame and guide pillar outward, and their below is provided with lower supporting plate, hollow cushion cover and lower shoe successively, so that improve the quality of fit of upper and lower mould, guarantees casting quality.
The knock-pin of described discharge component and release link lower end all are fixed on the fixed head that is arranged in counterdie cushion cover vacancy, the upper end places respectively in the through hole of die and low mold frame correspondence, the fixed head below links to each other with the lower roof plate that is arranged in counterdie cushion cover vacancy, lower roof plate links to each other with the extruder liftout tank, so that under the extruder effect, promote lower roof plate, fixed head vacancy in cushion cover is upper and lower moves, thereby eject behind the foundry goods return again, use in order to extruding once more.
The utility model compared with prior art has following advantage and effect: adopt such scheme, can carry out preheating respectively to punch and die in advance, it is low to have solved the semi solid slurry temperature, and rapid solidification before punch is exerted pressure and influence problems such as the follow-up moulding and the weak effect of exerting pressure, and in the continuous production of postorder, whether visual mold temperature decision continues heating again, with energy savings, simultaneously can obtain not have shrinkage porosite, there is not pore, the high-quality piston foundry goods of dimensionally stable, the gained foundry goods only need carry out a small amount of machined again and form the piston product, the precision height has successfully been realized the continuously extruded casting of semi-solid aluminium alloy piston.
Description of drawings
Fig. 1 is the structural representation of the utility model.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described further.
As Fig. 1, the mould of the semisolid extrusion casint all-aluminium piston that the utility model provides, constitute by upper die and lower die and discharge component, wherein, patrix punch 2 that comprise upper cover plate 1 and be positioned at upper cover plate 1 below and that set gradually from inside to outside, go up framed 4, upper holder block 7 and guide pin bushing 9, the center of punch 2 is provided with electrically heated rod 3 longitudinally; The die 10 that counterdie comprises lower shoe 19 and places cushion cover 15, gripper shoe 14, low mold frame 13, guide pillar 8 and middle part on the lower shoe 19 from bottom to top, the outer wall of die 10 is wound with electrical heating wire 11; Discharge component comprises lower roof plate 18 and the fixed head 17 that places in cushion cover 15 hollows 16, release link 12 and knock-pin 20 lower ends are fixed on the fixed head 17, the upper end of release link 12 places in the through hole of low mold frame 13 correspondences, the upper end of knock-pin 20 places in the through hole of die correspondence, lower roof plate 18 belows link to each other with extruder liftout tank 21, so that make lower roof plate 18, fixed head 17 and release link 12 thereof, knock-pin 20 upper and lower moving in cushion cover hollow 16 under liftout tank 21 effects.Its course of work is: earlier be heated to punch 2 and die 10 heating member 3 and 11 by separately temperature required, and behind the spraying releasing agent, semi solid slurry is poured in the die 10, allow patrix press down afterwards, guide pillar 8 enters in the guide pin bushing 9, on having guaranteed, the quality of fit of counterdie, punch 2 inserts in the die 10 simultaneously, the extruding semi solid slurry, and gradually with the upper end of slurry back-pressure to die 10, behind punch 2 in-positions, unnecessary semi solid slurry outwards overflows from the blowpit 5 of die 10 upper ends, and remaining slurry is enclosed in the die 18 by the front end of upper holder block 4, this moment, spring 6 still was in stretched condition, slurry is played the precompressed effect, along with further pressing down of punch 2, spring 6 is compressed, and upper cover plate 1 directly contacts with punch 2, the pressure of slurry strengthens rapidly in the die 10, directly contact with low mold frame 13 upper surfaces up to guide pin bushing 9 lower ends, course of exerting pressure stops, the beginning pressurize, after pressurize finishes, whole patrix moves upward, and punch 2 is deviate from from piston foundry goods 22, spring 6 stretched condition that affranchises, patrix stops after being up to height above the piston foundry goods.Oil cylinder 21 moves upward under the startup extruder, promotes to move on the discharge component, ejects piston foundry goods 22 by knock-pin 20.Afterwards, under the situation of not pouring into a mould semi solid slurry, whole patrix idle running is pressed down, and contact and promotion release link 12 move down, thereby discharge component is resetted, on move patrix, sprayed coating is prepared extruding next time, after producing several pistons, punch and die temperature raise, and heater promptly stops heating.

Claims (6)

1, a kind of mould of semisolid extrusion casint all-aluminium piston comprises the counterdie of the patrix of being with punch and band die, and the discharge component of band knock-pin and release link, it is characterized in that being respectively equipped with heating member in the punch of patrix and on the die of counterdie.
2, the mould of semisolid extrusion casint all-aluminium piston according to claim 1 is characterized in that the heating member in the described patrix punch is an electrically heated rod, vertically is located at the punch middle part.
3, the mould of semisolid extrusion casint all-aluminium piston according to claim 1 is characterized in that the heating member on the described counterdie die is an electric heating wire, is around on the outer wall of die.
4, the mould of semisolid extrusion casint all-aluminium piston according to claim 1 is characterized in that the punch of described patrix is provided with upper holder block outward successively, goes up framed and guide pin bushing, and their top is provided with upper cover plate.
5, the mould of semisolid extrusion casint all-aluminium piston according to claim 1 is characterized in that the die of described counterdie is provided with low mold frame and guide pillar outward, and their below is provided with lower supporting plate, hollow cushion cover and lower shoe successively.
6, the mould of semisolid extrusion casint all-aluminium piston according to claim 1, the knock-pin and the release link lower end that it is characterized in that described discharge component all are fixed on the fixed head that is arranged in counterdie cushion cover vacancy, the upper end places respectively in the through hole of die and low mold frame correspondence, the fixed head below links to each other with the lower roof plate that is arranged in counterdie cushion cover vacancy, and lower roof plate links to each other with the extruder liftout tank.
CNU2008200809092U 2008-02-22 2008-02-22 Mould for semi-solid state extrusion casting aluminum alloy piston CN201217019Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2008200809092U CN201217019Y (en) 2008-02-22 2008-02-22 Mould for semi-solid state extrusion casting aluminum alloy piston

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2008200809092U CN201217019Y (en) 2008-02-22 2008-02-22 Mould for semi-solid state extrusion casting aluminum alloy piston

Publications (1)

Publication Number Publication Date
CN201217019Y true CN201217019Y (en) 2009-04-08

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CN (1) CN201217019Y (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102343431A (en) * 2011-03-15 2012-02-08 江苏凯特汽车部件有限公司 Temperature field compensation method in semi-solid rheo-die-casting process of automobile aluminium alloy wheel
CN102423798A (en) * 2011-11-25 2012-04-25 沈阳工业大学 Hypereutectic Al-Si alloy extrusion casting forming method and mould thereof
CN103157777A (en) * 2011-12-08 2013-06-19 友嘉绿能科技股份有限公司 Manufacture method for magnesium alloy products
CN106141141A (en) * 2015-04-21 2016-11-23 浙江亚路铸造有限公司 The piston of a kind of large aluminum alloy extrusion casint and foundry engieering thereof
CN106735065A (en) * 2016-12-27 2017-05-31 昆明理工大学 A kind of shaping dies of semi-solid rheological extrusion casint shaft sleeve parts
CN107234143A (en) * 2017-06-27 2017-10-10 中北大学 A kind of almag rotary extrusion forming particular manufacturing craft
CN107931434A (en) * 2017-11-17 2018-04-20 哈尔滨工业大学 A kind of wrought aluminium alloy complex casing part Semi-Solid Thixoforming pressurizing unit and its application method
CN108393441A (en) * 2018-04-25 2018-08-14 宣城尤达美智能科技有限公司 A kind of automation metal material founding processing technology equipment
CN108704950A (en) * 2018-05-31 2018-10-26 北京航星机器制造有限公司 A kind of hot-pressed mold of saddle-shape beam member and component forming method
CN108941232A (en) * 2018-07-09 2018-12-07 中国兵器工业第五九研究所 A kind of casted die mould
CN110899650A (en) * 2019-12-18 2020-03-24 浙江上风高科专风实业有限公司 High-pressure casting process of weldless axial flow fan

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102343431A (en) * 2011-03-15 2012-02-08 江苏凯特汽车部件有限公司 Temperature field compensation method in semi-solid rheo-die-casting process of automobile aluminium alloy wheel
CN102423798A (en) * 2011-11-25 2012-04-25 沈阳工业大学 Hypereutectic Al-Si alloy extrusion casting forming method and mould thereof
CN103157777A (en) * 2011-12-08 2013-06-19 友嘉绿能科技股份有限公司 Manufacture method for magnesium alloy products
CN106141141A (en) * 2015-04-21 2016-11-23 浙江亚路铸造有限公司 The piston of a kind of large aluminum alloy extrusion casint and foundry engieering thereof
CN106735065A (en) * 2016-12-27 2017-05-31 昆明理工大学 A kind of shaping dies of semi-solid rheological extrusion casint shaft sleeve parts
CN108480595A (en) * 2016-12-27 2018-09-04 李永宏 A kind of shaft sleeve parts manufacturing process
CN107234143A (en) * 2017-06-27 2017-10-10 中北大学 A kind of almag rotary extrusion forming particular manufacturing craft
CN107931434B (en) * 2017-11-17 2019-05-31 哈尔滨工业大学 A kind of wrought aluminium alloy complex casing part Semi-Solid Thixoforming pressurizing unit and its application method
CN107931434A (en) * 2017-11-17 2018-04-20 哈尔滨工业大学 A kind of wrought aluminium alloy complex casing part Semi-Solid Thixoforming pressurizing unit and its application method
CN108393441A (en) * 2018-04-25 2018-08-14 宣城尤达美智能科技有限公司 A kind of automation metal material founding processing technology equipment
CN108704950A (en) * 2018-05-31 2018-10-26 北京航星机器制造有限公司 A kind of hot-pressed mold of saddle-shape beam member and component forming method
CN108704950B (en) * 2018-05-31 2020-06-19 北京航星机器制造有限公司 Saddle-shaped cross beam member hot extrusion forming die and member forming method
CN108941232A (en) * 2018-07-09 2018-12-07 中国兵器工业第五九研究所 A kind of casted die mould
CN108941232B (en) * 2018-07-09 2019-11-19 中国兵器工业第五九研究所 A kind of casted die mould
CN110899650A (en) * 2019-12-18 2020-03-24 浙江上风高科专风实业有限公司 High-pressure casting process of weldless axial flow fan

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20090408

Termination date: 20120222

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