CN201147834Y - Cast die having secondary extrusion mechanism - Google Patents

Cast die having secondary extrusion mechanism Download PDF

Info

Publication number
CN201147834Y
CN201147834Y CNU2008200828924U CN200820082892U CN201147834Y CN 201147834 Y CN201147834 Y CN 201147834Y CN U2008200828924 U CNU2008200828924 U CN U2008200828924U CN 200820082892 U CN200820082892 U CN 200820082892U CN 201147834 Y CN201147834 Y CN 201147834Y
Authority
CN
China
Prior art keywords
die
extrusion
casting
core
thick
Prior art date
Application number
CNU2008200828924U
Other languages
Chinese (zh)
Inventor
姚杰
Original Assignee
宁波合力模具科技股份有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 宁波合力模具科技股份有限公司 filed Critical 宁波合力模具科技股份有限公司
Priority to CNU2008200828924U priority Critical patent/CN201147834Y/en
Application granted granted Critical
Publication of CN201147834Y publication Critical patent/CN201147834Y/en

Links

Abstract

A die-casting die with a secondary extrusion mechanism is applicable to a large die-casting part with a hole arranged in a thick part, and consists of a die-casting die and a secondary extrusion mechanism; the secondary extrusion mechanism includes an extrusion core connected with a profile cavity on the back of the profile surface of the thick part of the die-casting part; the extrusion core is proped against the die-casting part in the profile cavity, an extrusion core sleeve arranged out of the extrusion core, and an extrusion oil cylinder connected with the extrusion core; the extrusion core sleeve is fixedly connected with the die. The die-casting die conducts secondary extrusion in a holding phase after a die-casting machine finishes supplementation and pressurization, and has the advantages of forceful feeding to eliminate shrinkage hole and loosening, and forceful compression to the air involved in the part or discharge of the air from metal liquid to reduce the number of pore, so that the die-casting tissue is more tight, so as to improve the conformity rate of the die-casting part and reduce the waste.

Description

The compression mod that has secondary extrusion mechanism
Technical field
The utility model relates to the metal casting technical field, especially relates to the compression mod that has secondary extrusion mechanism in the metal casting.
Background technology
In die casting is produced, often run into the large-scale die casting spare that the thick large part of some foundry goods human body is provided with the hole, this hole is being carried out in the machining, tend to casting flaws such as pore that to differ in size appear in the inwall in the hole, shrinkage cavity, especially when these holes are screwed hole, serious bad tooth phenomenon can occur, cause large-tonnage product to scrap; For addressing this problem, generally all start with, but produce little effect sometimes from improving aspects such as mould gate, minimizing allowance and selection reasonable process parameter.
Summary of the invention
The purpose of this utility model is in order to address the above problem, a kind of compression mod that has secondary extrusion mechanism is provided, in the hope of when the thick large part of the production foundry goods human body is provided with the large-scale die casting spare in hole, eliminating casting flaws such as pore, shrinkage cavity, improve casting qualified rate, the loss of reducing the number of rejects and seconds.
For achieving the above object, the technical solution adopted in the utility model is such: in view of the die cavity volume of the thick large part of the die casting human body is big, the gas that is involved in the molten metal at this place when type is filled in injection is just many, causes at a large amount of pore of this position appearance; Simultaneously since thick large part to fill the molten metal that accumulates behind the type many, the heat that is accumulated is also many, thereby this position molten metal heat radiation is solidified slow; When die casting machine is finished when being in packing stage after filling type and supercharging, molten metal around this position solidifies rapidly, have only this position to be in liquid state or semisolid, form the little bath of a sealing, this part metal is when solidifying, can not get replenishing of molten metal on every side, so just form shrinkage cavity and loose phenomenon easily; So the utility model is taked at the profile back of the thick large part of compression moulded element an extrusion oil cylinder to be set, the core at this place is become telescopic extruding core, when die casting machine is finished when being in packing stage after filling type and supercharging, promoting the extruding core by extrusion oil cylinder stretches out, carry out secondary extrusion, thereby obtain the finer and close die casting of this place's tissue; So a kind of compression mod that has secondary extrusion mechanism of the present utility model, form by compression mod and secondary extrusion mechanism, said secondary extrusion mechanism, comprise the extruding core that the profile back die cavity with the thick large part of die casting joins, be sheathed on the outer extruding core retainer plate of extruding core, and with the joining extrusion oil cylinder of extruding core; Said extruding core retainer plate and die body fix.
Since adopted technique scheme, a kind of compression mod that has secondary extrusion mechanism of the present utility model, the packing stage of finishing after filling type and supercharging at die casting machine carries out secondary extrusion, and the one, play the effect of feeding by force, to eliminate shrinkage cavity and loose; The 2nd, the air that this position is involved in compresses by force, even drives out of from molten metal, and with the minimizing pore, thereby it is fine and close more that die casting is organized, and improves casting qualified rate, the loss of reducing the number of rejects and seconds.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a structural representation of the present utility model.
Among the figure: 1, the die casting in the die cavity, 2, the extruding core, 3, the extruding core retainer plate, 4, extrusion oil cylinder, 5, die body.
The specific embodiment
Shown in accompanying drawing 1, a kind of compression mod that has secondary extrusion mechanism of the present utility model, form by compression mod and secondary extrusion mechanism, said secondary extrusion mechanism, comprise the extruding core 2 that the profile back die cavity with the thick large part of die casting joins, this extruding core 2 props up the die casting 1 in the die cavity, is sheathed on the outer extruding core retainer plate 3 of extruding core, and with the joining extrusion oil cylinder 4 of extruding core; Said extruding core retainer plate and die body 5 fix.
Die casting 1 in the die cavity shown in the figure only is local.

Claims (1)

1, a kind of compression mod that has secondary extrusion mechanism, form by compression mod and secondary extrusion mechanism, it is characterized in that: said secondary extrusion mechanism, comprise the extruding core (2) that the profile back die cavity with the thick large part of die casting joins, this extruding core (2) props up the die casting (1) in the die cavity, be sheathed on the outer extruding core retainer plate (3) of extruding core, and with the extruding joining extrusion oil cylinder of core (4); Said extruding core retainer plate and die body (5) fix.
CNU2008200828924U 2008-01-31 2008-01-31 Cast die having secondary extrusion mechanism CN201147834Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2008200828924U CN201147834Y (en) 2008-01-31 2008-01-31 Cast die having secondary extrusion mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2008200828924U CN201147834Y (en) 2008-01-31 2008-01-31 Cast die having secondary extrusion mechanism

Publications (1)

Publication Number Publication Date
CN201147834Y true CN201147834Y (en) 2008-11-12

Family

ID=40115602

Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2008200828924U CN201147834Y (en) 2008-01-31 2008-01-31 Cast die having secondary extrusion mechanism

Country Status (1)

Country Link
CN (1) CN201147834Y (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102019400A (en) * 2010-12-23 2011-04-20 清华大学 Method and die for manufacturing engine cylinder sleeve casting by using extrusion casting process
CN102649152A (en) * 2012-04-16 2012-08-29 启东凯雷达模具制造有限公司 Extrusion mechanism for controlling porosity of die pressed casting core
CN102773414A (en) * 2012-04-06 2012-11-14 北京时代锐智科贸有限公司 No-riser casting machine
CN105081275A (en) * 2015-09-23 2015-11-25 辽宁工程技术大学 Method for preparing graded pressurization liquid forging aluminum alloy engine cylinder cover
CN106825484A (en) * 2016-12-28 2017-06-13 宁波臻至机械模具有限公司 It is a kind of to vacuumize lateral pressing structure of shoe for manufacture water-cooled clutch housing
CN107186195A (en) * 2017-07-28 2017-09-22 芜湖永达科技有限公司 A kind of local extrusion structure of die-cast rotor housing
WO2018053939A1 (en) * 2016-09-23 2018-03-29 华南理工大学 Extrusion casting method of workpiece
CN108262457A (en) * 2016-12-30 2018-07-10 宁波市北仑鑫林机电模具有限公司 A kind of structure of cast die and its shrinkage compensation process
CN111451476A (en) * 2020-04-22 2020-07-28 安徽旭隆精工科技有限公司 Secondary supercharging device of die casting machine

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102019400A (en) * 2010-12-23 2011-04-20 清华大学 Method and die for manufacturing engine cylinder sleeve casting by using extrusion casting process
CN102019400B (en) * 2010-12-23 2015-08-05 清华大学 Extrution casting technique is utilized to manufacture method and the mould of engine cylinder sleeve foundry goods
CN102773414A (en) * 2012-04-06 2012-11-14 北京时代锐智科贸有限公司 No-riser casting machine
CN102773414B (en) * 2012-04-06 2014-08-27 北京时代锐智科贸有限公司 No-riser casting machine
CN102649152A (en) * 2012-04-16 2012-08-29 启东凯雷达模具制造有限公司 Extrusion mechanism for controlling porosity of die pressed casting core
CN105081275A (en) * 2015-09-23 2015-11-25 辽宁工程技术大学 Method for preparing graded pressurization liquid forging aluminum alloy engine cylinder cover
WO2018053939A1 (en) * 2016-09-23 2018-03-29 华南理工大学 Extrusion casting method of workpiece
CN106825484A (en) * 2016-12-28 2017-06-13 宁波臻至机械模具有限公司 It is a kind of to vacuumize lateral pressing structure of shoe for manufacture water-cooled clutch housing
CN108262457A (en) * 2016-12-30 2018-07-10 宁波市北仑鑫林机电模具有限公司 A kind of structure of cast die and its shrinkage compensation process
CN107186195A (en) * 2017-07-28 2017-09-22 芜湖永达科技有限公司 A kind of local extrusion structure of die-cast rotor housing
CN111451476A (en) * 2020-04-22 2020-07-28 安徽旭隆精工科技有限公司 Secondary supercharging device of die casting machine

Similar Documents

Publication Publication Date Title
CN102941333B (en) V method, low pressure produce the method for voltage-bearing aluminum alloy tank body of ultra-high voltage switch
CN103121082B (en) V8 type gray cast iron cylinder body casting pouring method
CN101905305B (en) Die-casting forming method for aluminum alloy casing die castings
CN105772646B (en) A kind of large-duty loader hydraulic valve casting die and manufacture method
CN201267870Y (en) Tilting type metal mold casting device
CN101927329B (en) Vacuum high-pressure casting method
CN101274361B (en) Low speed vacuum squeeze casting technology
CN205599876U (en) Casing blank shell mould mould
CN205110693U (en) Core package assembly of engine cylinder lid
CN102029383A (en) Aluminum alloy wheel gravity casting die and casting method thereof
CN105689682B (en) A kind of tiltedly core-drawing hole local compression structure of cast die and moulding process
CN101318213A (en) Low pressure casting mould structure of aluminium alloy wheel hub
CN104985128B (en) One kind casting multi-laminate pours running gate system and technique
CN104550876A (en) Pressurizing casting device and method for automobile hub
CN203124652U (en) Hub casting mould locking device
CN204035526U (en) Casting mould
CN204735702U (en) Three board die casting die structures of large -scale magnesium alloy parts center multiple feed
CN1947893A (en) Method for mfg. aluminium alloy wheel hub
CN201257495Y (en) Iron type sand coated casting exhaust system
CN204711100U (en) A kind of casting mold for 465Q motor cylinder block
CN102218520B (en) Light-alloy die-casting, filling, forging and compacting integrated forming device
CN202427920U (en) Mould injection device
CN206153526U (en) Half supplementary solid -state injection molding device of complicated thin wall class aluminum alloy part supersound
CN100544858C (en) The one-time formed method of two controls is forged in metal liquid die casting
CN104014760A (en) Die-casting die capable of preventing shrinkage cavity of casting and die-casting technique thereof

Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
C53 Correction of patent for invention or patent application
COR Change of bibliographic data

Free format text: CORRECT: INVENTOR; FROM: YAO JIE TO: SHI LIANGCAI YAO JIE

CB03 Change of inventor or designer information

Inventor after: Shi Liangcai

Inventor after: Yao Jie

Inventor before: Yao Jie

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

Granted publication date: 20081112

Termination date: 20150131

EXPY Termination of patent right or utility model