US20120125069A1 - Inner sleeve for a flat extrusion cylinder and a flat extrusion cylinder - Google Patents

Inner sleeve for a flat extrusion cylinder and a flat extrusion cylinder Download PDF

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Publication number
US20120125069A1
US20120125069A1 US12/933,925 US93392509A US2012125069A1 US 20120125069 A1 US20120125069 A1 US 20120125069A1 US 93392509 A US93392509 A US 93392509A US 2012125069 A1 US2012125069 A1 US 2012125069A1
Authority
US
United States
Prior art keywords
inner sleeve
extrusion cylinder
piece
flat extrusion
ring piece
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.)
Abandoned
Application number
US12/933,925
Other languages
English (en)
Inventor
Qing Chen
Qingwan Fang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Southwest Aluminum Group Co Ltd
Original Assignee
Southwest Aluminum Group Co Ltd
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 Southwest Aluminum Group Co Ltd filed Critical Southwest Aluminum Group Co Ltd
Assigned to Southwest Aluminium (Group) Co., Ltd. reassignment Southwest Aluminium (Group) Co., Ltd. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CHEN, QING, FANG, QINGWAN
Publication of US20120125069A1 publication Critical patent/US20120125069A1/en
Abandoned legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C25/00—Profiling tools for metal extruding
    • B21C25/02—Dies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C25/00—Profiling tools for metal extruding
    • B21C25/10—Making tools by operations not covered by a single other subclass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C27/00—Containers for metal to be extruded

Definitions

  • FIG. 1 is a schematic view of the flat extrusion cylinder including an integral inner sleeve in the prior art.
  • the assembled inner sleeve is constituted of four assemble pieces, i.e., a left assemble piece A, a right assemble piece B, an upper assemble piece C and a lower assemble piece D, respectively.
  • the four assemble pieces are fixed on an inner wall of an intermediate sleeve.
  • the technical problem to be solved by the present invention is to provide an inner sleeve for the flat extrusion cylinder and a flat extrusion cylinder, which can increase the lifespan of the flat extrusion cylinder.
  • the inner sleeve for the flat extrusion cylinder includes an inner sleeve ring piece, an upper insert piece and a lower insert piece;
  • the inner sleeve further includes at least two countersunk head bolts configured to fix the upper insert piece and the lower insert piece on the inner wall of the inner sleeve ring piece.
  • the number of the countersunk head bolts is two, that is, a first countersunk head bolt and a second countersunk head bolt, respectively,
  • first countersunk head bolt is configured to fix the upper insert piece on the inner wall of the inner sleeve ring piece
  • the number of the countersunk head bolts is four, wherein two of the countersunk head bolts are configured to fix the upper insert piece on the inner wall of the inner sleeve ring piece, and the other two of the countersunk head bolts are configured to fix the lower insert piece on the inner wall of the inner sleeve ring piece.
  • the inner sleeve ring piece is made by forging process.
  • a blank of the inner sleeve ring piece is forged by hole-enlarging shaping process or annular rolling process, so that metal streamline of the inner sleeve ring piece is regularly distributed in a circumferential direction.
  • the present invention further provides a flat extrusion cylinder including an intermediate sleeve and an outer sleeve, wherein the intermediate sleeve is disposed within the outer sleeve; the flat extrusion cylinder further includes above inner sleeve disposed within the intermediate sleeve.
  • the present invention has the following advantages.
  • the inner sleeve for the flat extrusion cylinder is constituted of the inner sleeve ring piece and two insert pieces. Arc surfaces of the two insert pieces match with the arc inner wall of the inner sleeve ring piece, so as to improve the stress distribution at interface portions between the flat surface and the arc surface of the inner sleeve working die cavity.
  • the insert pieces will make a minor displacement in upward and downward direction due to the pressure from the inner sleeve working die cavity, such that the inner sleeve ring piece is elastically deformed in the circumferential direction, thereby generating a resisting force against the peak stress in the cylinder.
  • FIG. 1 is a schematic view of the flat extrusion cylinder including an integral inner sleeve in the prior art
  • FIG. 3 is a schematic view of a first embodiment of an inner sleeve for a flat extrusion cylinder according to the present invention.
  • FIG. 4 is a schematic view of a second embodiment of an inner sleeve for the flat extrusion cylinder according to the present invention.
  • FIG. 3 is a schematic view of a first embodiment of an inner sleeve for the flat extrusion cylinder according to the present invention.
  • the inner sleeve for the flat extrusion cylinder includes an inner sleeve ring piece 301 , upper insert piece 302 and lower insert piece 303 .
  • the inner sleeve ring piece 302 is positioned in the intermediate sleeve 102 of the flat extrusion cylinder.
  • the upper insert piece 302 and lower insert piece 303 are symmetrically located on an inner wall of the inner sleeve ring piece 301 , respectively.
  • the upper insert piece 302 and lower insert piece 303 define an inner sleeve working die cavity 304 of the flat extrusion cylinder.
  • each of the upper insert piece 302 and lower insert piece 303 has a crescent-shaped cross-section.
  • An arc surface of the crescent-shaped cross-section matches with the arc surface of the inner sleeve ring piece 301 .
  • the lower countersunk head bolt 306 is used to fix the lower insert piece 303 on the inner wall of the inner sleeve ring piece 301 .
  • the countersunk head bolts are preferably used to fix the insert pieces on the inner wall of the inner sleeve ring piece.
  • other ways or members, which are capable of fixing the upper insert piece and the lower insert piece on the inner wall of the inner sleeve ring piece may be used.
  • a blank of the inner sleeve ring piece of the flat extrusion cylinder according to the present invention is forged by hole-enlarging shaping process or annular rolling process, so that the metal streamline of the inner sleeve ring piece is distributed in the circumferential direction (or in the tangent direction).
US12/933,925 2009-06-18 2009-07-28 Inner sleeve for a flat extrusion cylinder and a flat extrusion cylinder Abandoned US20120125069A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN2009101482246A CN101927275B (zh) 2009-06-18 2009-06-18 一种扁挤压筒的内套及扁挤压筒
CN200910148224.6 2009-06-18
PCT/CN2009/072949 WO2010145087A1 (zh) 2009-06-18 2009-07-28 一种扁挤压筒的内套及扁挤压筒

Publications (1)

Publication Number Publication Date
US20120125069A1 true US20120125069A1 (en) 2012-05-24

Family

ID=43355686

Family Applications (1)

Application Number Title Priority Date Filing Date
US12/933,925 Abandoned US20120125069A1 (en) 2009-06-18 2009-07-28 Inner sleeve for a flat extrusion cylinder and a flat extrusion cylinder

Country Status (3)

Country Link
US (1) US20120125069A1 (zh)
CN (1) CN101927275B (zh)
WO (1) WO2010145087A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102896465A (zh) * 2012-10-24 2013-01-30 西南铝业（集团）有限责任公司 一种挤压筒的装配方法
CN114160598A (zh) * 2021-12-27 2022-03-11 广东兴发铝业（江西）有限公司 一种挤压模具分流模结构及其制备方法

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103934299B (zh) * 2014-05-05 2015-12-09 重庆大学 一种消除内筒应力集中的扁挤压筒及制造方法
CN105414230B (zh) * 2015-12-14 2017-10-24 重庆大学 一种预应力框架定向增强扁挤压筒
CN105414234A (zh) * 2015-12-28 2016-03-23 青海模具制造科技有限公司 一种耐用加热型挤压筒
CN106064181B (zh) * 2016-06-22 2018-07-31 重庆大学 一种板材剧烈塑性变形的累积挤压装置及其使用方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2960221A (en) * 1954-04-12 1960-11-15 Baldwin Lima Hamilton Corp Extrusion press for elongated cross-sections

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT395687B (de) * 1990-10-12 1993-02-25 Boehler Gmbh Flachrezipient fuer strangpressen und verfahren zu dessen herstellung
ATA205990A (de) * 1990-10-12 1993-10-15 Boehler Gmbh Rezipient mit flacher aufnahmekammer für strangpressen und verfahren zu dessen herstellung
DE59400219D1 (de) * 1994-02-21 1996-05-23 Hasenclever Maschf Sms Zwei- oder mehrteiliger Blockaufnehmer zum Verpressen von Flachblöcken in Metallstrangpressen
CN2304481Y (zh) * 1997-01-22 1999-01-20 北京科技大学 扁挤压筒
CN2511408Y (zh) * 2001-11-19 2002-09-18 重庆工业高等专科学校 局部预压力结构扁挤压筒
CN2637017Y (zh) * 2003-07-11 2004-09-01 北京有色金属研究总院 椭圆内孔的扁挤压筒

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2960221A (en) * 1954-04-12 1960-11-15 Baldwin Lima Hamilton Corp Extrusion press for elongated cross-sections

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102896465A (zh) * 2012-10-24 2013-01-30 西南铝业（集团）有限责任公司 一种挤压筒的装配方法
CN114160598A (zh) * 2021-12-27 2022-03-11 广东兴发铝业（江西）有限公司 一种挤压模具分流模结构及其制备方法

Also Published As

Publication number Publication date
WO2010145087A1 (zh) 2010-12-23
CN101927275A (zh) 2010-12-29
CN101927275B (zh) 2012-05-23

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Legal Events

Date Code Title Description
AS Assignment

Owner name: SOUTHWEST ALUMINIUM (GROUP) CO., LTD., CHINA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:CHEN, QING;FANG, QINGWAN;REEL/FRAME:025027/0854

Effective date: 20100915

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION