EP0590008A1 - Strangpresswerkzeug zur herstellung eines hartmetall-oder keramikstabes mit gedrallten innenbohrungen. - Google Patents
Strangpresswerkzeug zur herstellung eines hartmetall-oder keramikstabes mit gedrallten innenbohrungen.Info
- Publication number
- EP0590008A1 EP0590008A1 EP92913017A EP92913017A EP0590008A1 EP 0590008 A1 EP0590008 A1 EP 0590008A1 EP 92913017 A EP92913017 A EP 92913017A EP 92913017 A EP92913017 A EP 92913017A EP 0590008 A1 EP0590008 A1 EP 0590008A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- nozzle
- extrusion tool
- bores
- thread
- mouthpiece
- 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.)
- Granted
Links
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
-
- 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
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/02—Making uncoated products
- B21C23/04—Making uncoated products by direct extrusion
- B21C23/14—Making other products
- B21C23/147—Making drill blanks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/20—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by extruding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F2005/004—Article comprising helical form elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
Definitions
- the invention relates to an extrusion tool for the manufacture of a hard metal or ceramic rod with at least one twisted inner bore, in which the mouthpiece of the press nozzle has a smooth cylindrical channel.
- Tungsten carbide or ceramic rods with twisted, i.e. H. screw-shaped inner bores are further processed, for example, into bores.
- the twisted inner bores form the later rinsing or cooling channels for introduction
- ⁇ 35 press tool on a nozzle on the inner jacket at least one helically running web is arranged in the pressing direction, which forces the extruded material pressed through the nozzle from the outside radially a swirl movement.
- the twisted bores are provided with elastic pins which protrude into the interior of the nozzle and which have the desired rinsing bore diameter.
- an extrusion tool which has a swirl device designed as a swirl screw on the inside, with the aid of which the extrusion mass already undergoes a swirl movement within the extrusion tool during the extrusion process and which leaves a nozzle mouthpiece with swirl which has a smooth cylindrical channel.
- the helical inner bores are formed by elastic threads attached to the swirl device or by thread-like material emerging from the swirl device and pressed into the mass flow.
- the object of the invention is to further simplify the extrusion tool according to the preamble of claim 1 and to further improve the quality of the rod blanks produced therewith.
- a carrier is arranged coaxially within the press nozzle of the extrusion tool, which corresponds to the number of desired inner bores carries several threads protruding into the nozzle mouthpiece, which in different ways depending on the position of the inner bores
- Thread carrier and / or nozzle mouthpiece rotate about the longitudinal axis. It is therefore not necessary to have a special swirl device which imposes a swirl on the entire mass pressed through the nozzle.
- the extrusion compound rotates
- the pitch angle of the swirl channels generated is thus determined by the rotational speed of the thread carrier or the nozzle mouthpiece and the flow speed of the press
- the thread carrier is designed according to a further feature of the invention as a hub tapering towards the nozzle mouthpiece, i. H. it has the shape of a propeller hub without wings.
- the hub is expediently a hollow hub
- these threads carry metallic or other parts which influence a magnetic or electrical field at their ends projecting into the nozzle mouthpiece.
- the rotation speed of the threads and thus indirectly the twist pitch can be measured indirectly with known extrusion speed of the plastic mass.
- the threads in the mass flow are arranged in predetermined distances and in a predetermined number of threads of the thread carrier
- the swirl channels can also be produced by plastic material emerging from the thread carrier.
- Fig. 1 shows a longitudinal section through the extrusion tool in a schematic broken view
- FIG 2 shows the front view of the thread carrier with fastening points for the threads on different pitch circles.
- the extrusion tool essentially consists of the housing 1, which merges into the conically tapering nozzle 2 which is formed in one piece with it.
- the nozzle mouthpiece 3 has a smooth cylindrical channel 4 and is either formed in one piece with the nozzle 2 or as a separate part, as shown.
- a mandrel 5 is provided in a coaxial arrangement, to which the thread carrier 6 is attached.
- This thread carrier 6 is approximately paraboloid-shaped in the manner of a propeller hub and hollow.
- a plurality of fastening bores 7 are arranged on the thread carrier 6 and lie on different pitch circles, that is to say they have a different radial distance from the longitudinal axis 8.
- Elastic threads 9 are fastened in each of these holes 7, namely in a number which corresponds to the number of later twisted inner bores.
- the threads 9 protrude into the nozzle mouthpiece 3.
- the nozzle mouthpiece 3 can be designed to be stationary. But it can also be rotatable.
- the thread carrier 6 can also be designed to be stationary or rotatable.
- a drive is provided in each case in order to set the thread carrier 8 or the nozzle mouthpiece 3 in rotation.
- a drive 10 is arranged inside the mandrel 5, which drives the thread carrier 6 via the shaft 11 communicates and rotates it, as indicated by arrow A.
- the rotation of the nozzle mouthpiece 3 is symbolized by the arrow B.
- the ceramic or hard metal mass located within the annular gap 12 between the mandrel 5 and the housing 1 or nozzle 2 is pressed by a pressing device (extruder, piston, etc.) not shown further past the thread carrier 6 into the nozzle mouthpiece 3 and emerges as a rod blank 13 which is then further treated by sintering.
- the thread carrier 6 can be set in rotation.
- the carrier 6 is driven from the inside by the drive 10 at a certain angular velocity in order to produce the desired swirl shape.
- the extrusion is pressed out and does not rotate.
- the rotation speed of the thread carrier 6 and the (axial) flow speed of the molding compound determine the pitch angle of the swirl channels 13 generated.
- the nozzle mouthpiece 3 is fixed, ie does not rotate.
- the smooth nozzle mouthpiece 3 is set in rotation according to arrow B.
- both the thread carrier 6 and the nozzle mouthpiece 3 can be designed to rotate, so that a superimposition of the rotational movement of the nozzle 3 and the thread carrier 6 is obtained. If the nozzle and thread carrier rotate in the same direction, the rotation is amplified, and if the nozzle and thread carrier rotate in opposite directions, the rotation is weakened Rotation and thus the swirl of the inner holes instead.
- the thread carrier 6 can, for example, rotate at a constant speed, while the speed of rotation of the nozzle 3 is variable and possibly compensates for twist errors.
- the ends of the threads 9 carry metallic or other parts influencing a magnetic field or an electric field in the area within the nozzle mouthpiece 3.
- the rotational speed can then be determined with an externally arranged measuring device (not shown further) and changed depending on the requirements. All in all, this results in a simply removed extrusion tool, with which completely smooth rod blanks with highly precise, twisted inner bores can be produced on the lateral surface.
- plastic material can also be pressed into the mass flow to produce the swirl channels 14.
- This plastic material emerges in a thread-like manner from the bores 7 of the carrier 6, the bores 7 still being connected to channels (not shown in further detail) and a correspondingly designed press chamber or the like.
- the plastic thread-like material contains a metallic powder as the filling compound, which influences the magnetic or electric field of a measuring device, also not shown, and is used to determine the speed of rotation.
- This variant of the extrusion tool can also be used to produce rod blanks with a smooth outer surface and exact swirl bores.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
- Powder Metallurgy (AREA)
- Cutting Tools, Boring Holders, And Turrets (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
- Ceramic Products (AREA)
- Drilling Tools (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4120166 | 1991-06-19 | ||
DE4120166A DE4120166C2 (de) | 1991-06-19 | 1991-06-19 | Strangpreßwerkzeug zur Herstellung eines Hartmetall- oder Keramikstabes mit gedrallten Innenbohrungen |
PCT/EP1992/001379 WO1992022390A1 (de) | 1991-06-19 | 1992-06-17 | Strangpresswerkzeug zur herstellung eines hartmetall-oder keramikstabes mit gedrallten innenbohrungen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0590008A1 true EP0590008A1 (de) | 1994-04-06 |
EP0590008B1 EP0590008B1 (de) | 1996-02-07 |
Family
ID=6434251
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP92913017A Expired - Lifetime EP0590008B1 (de) | 1991-06-19 | 1992-06-17 | Strangpresswerkzeug zur herstellung eines hartmetall-oder keramikstabes mit gedrallten innenbohrungen |
Country Status (7)
Country | Link |
---|---|
US (1) | US5438858A (de) |
EP (1) | EP0590008B1 (de) |
JP (1) | JP3312355B2 (de) |
AT (1) | ATE133879T1 (de) |
DE (2) | DE4120166C2 (de) |
ES (1) | ES2082478T3 (de) |
WO (1) | WO1992022390A1 (de) |
Families Citing this family (42)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0634959B1 (de) * | 1992-04-08 | 1997-03-26 | Gühring, Jörg, Dr. | Verfahren und vorrichtung zur kontinuierlichen herstellung von zylindrischen stäben mit zumindest einem innenliegenden, wendelförmigen kanal, und nach diesem verfahren hergestellter sinterrohling |
US5783286A (en) * | 1996-04-04 | 1998-07-21 | Dinicola; James L. | Hollow-core plastic structural lumber alternative |
DE19644447C2 (de) * | 1996-10-25 | 2001-10-18 | Friedrichs Konrad Kg | Verfahren und Vorrichtung zur kontinuierlichen Extrusion von mit einem wendelförmigen Innenkanal ausgestatteten Stäben aus plastischem Rohmaterial |
US6502982B1 (en) * | 1998-06-05 | 2003-01-07 | Montres Rado Sa | Structural component made of hard material for a wristwatch |
EP0964318B1 (de) * | 1998-06-08 | 2004-04-28 | Montres Rado S.A. | Bauteil aus Hartmaterial für eine Uhr |
SE516268C2 (sv) * | 1999-06-03 | 2001-12-10 | Seco Tools Ab | Metod och anordning med radiellt rörliga backar för strängpressning av roterande verktyg |
EP1230046B1 (de) * | 1999-09-09 | 2003-07-23 | Arno Friedrichs | Verfahren und vorrichtung zur herstellung eines sintermetall-rohlings mit innenliegenden, wendelförmigen ausnehmungen |
JP2001191110A (ja) * | 1999-12-28 | 2001-07-17 | Showa Alum Corp | 可変断面押出材の製造方法 |
US6726085B2 (en) * | 2002-05-14 | 2004-04-27 | The Boeing Company | Method and apparatus for producing a refined grain structure |
DE10229325B4 (de) * | 2002-06-29 | 2005-06-09 | Arno Friedrichs | Strangpresswerkzeug zur Herstellung eines aus plastischer Masse bestehenden zylindrischen Körpers |
DE10229326A1 (de) * | 2002-06-29 | 2004-01-29 | Arno Friedrichs | Strangpresswerkzeug zur Herstellung eines aus plastischer Masse bestehenden zylindrischen Körpers |
AU2003299278A1 (en) * | 2002-12-19 | 2004-07-14 | Guhring, Jorg | Sintered blanks having coiled cooling channels |
DE10300283B3 (de) | 2003-01-02 | 2004-06-09 | Arno Friedrichs | Verfahren und Vorrichtung zur Herstellung eines Hartmetall-Werkzeugs |
JP4426210B2 (ja) * | 2003-05-20 | 2010-03-03 | 日本碍子株式会社 | 成形用治具及びこれを用いた成形体の製造方法 |
KR101084014B1 (ko) * | 2003-06-04 | 2011-11-16 | 쎄코 툴스 에이비 | 공구용 블랭크의 제조 방법 및 장치 |
SE527456C2 (sv) * | 2003-07-28 | 2006-03-14 | Sandvik Intellectual Property | Förfarande och anordning för tillverkning genom extrusion av roterande verktyg för spånavskiljande bearbetning och verktyg |
SE527475C2 (sv) * | 2004-05-04 | 2006-03-21 | Sandvik Intellectual Property | Metod och anordning för tillverkning av ett borrämne eller fräsämne |
US8637127B2 (en) * | 2005-06-27 | 2014-01-28 | Kennametal Inc. | Composite article with coolant channels and tool fabrication method |
US7687156B2 (en) | 2005-08-18 | 2010-03-30 | Tdy Industries, Inc. | Composite cutting inserts and methods of making the same |
EP2327856B1 (de) | 2006-04-27 | 2016-06-08 | Kennametal Inc. | Modulare erdbohrmeissel mit fixiertem schneider, modulare erdbohrmeisselkörper mit fixiertem schneider und entsprechende verfahren |
WO2008051588A2 (en) | 2006-10-25 | 2008-05-02 | Tdy Industries, Inc. | Articles having improved resistance to thermal cracking |
US8512882B2 (en) | 2007-02-19 | 2013-08-20 | TDY Industries, LLC | Carbide cutting insert |
US7846551B2 (en) | 2007-03-16 | 2010-12-07 | Tdy Industries, Inc. | Composite articles |
CN102112642B (zh) | 2008-06-02 | 2013-11-06 | Tdy工业有限责任公司 | 烧结碳化物-金属合金复合物 |
US8790439B2 (en) | 2008-06-02 | 2014-07-29 | Kennametal Inc. | Composite sintered powder metal articles |
US8025112B2 (en) | 2008-08-22 | 2011-09-27 | Tdy Industries, Inc. | Earth-boring bits and other parts including cemented carbide |
US8322465B2 (en) | 2008-08-22 | 2012-12-04 | TDY Industries, LLC | Earth-boring bit parts including hybrid cemented carbides and methods of making the same |
US8272816B2 (en) | 2009-05-12 | 2012-09-25 | TDY Industries, LLC | Composite cemented carbide rotary cutting tools and rotary cutting tool blanks |
US8308096B2 (en) | 2009-07-14 | 2012-11-13 | TDY Industries, LLC | Reinforced roll and method of making same |
US8440314B2 (en) | 2009-08-25 | 2013-05-14 | TDY Industries, LLC | Coated cutting tools having a platinum group metal concentration gradient and related processes |
US9643236B2 (en) | 2009-11-11 | 2017-05-09 | Landis Solutions Llc | Thread rolling die and method of making same |
DE102009060844A1 (de) * | 2009-12-29 | 2011-06-30 | Friedrichs, Arno, 95326 | Verfahren zur Herstellung eines Kanäle aufweisenden Kraftstoffeinspritzelementes sowie Kraftstoffeinspritzelement |
DE102010019599A1 (de) | 2010-05-05 | 2011-11-10 | Gühring Ohg | Pulvermetallurgischer Stahl |
US8596935B2 (en) | 2010-10-08 | 2013-12-03 | TDY Industries, LLC | Cutting tools and cutting inserts including internal cooling |
US9180650B2 (en) | 2010-10-08 | 2015-11-10 | Kennametal Inc. | Cutting tool including an internal coolant system and fastener for a cutting tool including an internal coolant system |
US8800848B2 (en) | 2011-08-31 | 2014-08-12 | Kennametal Inc. | Methods of forming wear resistant layers on metallic surfaces |
US9016406B2 (en) | 2011-09-22 | 2015-04-28 | Kennametal Inc. | Cutting inserts for earth-boring bits |
CN103008381B (zh) * | 2012-12-11 | 2015-08-05 | 烟台大学 | 一种搅拌分流模具和应用搅拌分流模具挤压型材的方法 |
JP6848160B2 (ja) * | 2016-05-19 | 2021-03-24 | 住友電工ハードメタル株式会社 | 切削工具 |
DE102018202941B4 (de) | 2018-02-27 | 2024-01-25 | Kennametal Inc. | Verfahren zur Herstellung eines Rohlings aus Extrusionsmasse sowie Extruder |
RU192355U1 (ru) * | 2019-06-14 | 2019-09-13 | Федеральное государственное автономное образовательное учреждение высшего образования "Южно-Уральский государственный университет (национальный исследовательский университет)" (ФГАОУ ВО "ЮУрГУ (НИУ)") | Устройство для получения заготовок контактных вставок троллейбусов |
CN111468732A (zh) * | 2020-04-29 | 2020-07-31 | 江西耀升钨业股份有限公司 | 一种带内螺旋冷却液孔的硬质合金刀具及其生产设备 |
Family Cites Families (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US281711A (en) * | 1883-07-24 | Tile-machine | ||
US1684312A (en) * | 1926-01-19 | 1928-09-11 | John J Fischer | Electrical insulator |
US2138378A (en) * | 1934-02-21 | 1938-11-29 | Johnson John Herbert | Method and means of making striped rubber products |
US2174779A (en) * | 1937-12-16 | 1939-10-03 | George Morrell Corp | Apparatus for extruding varicolored plastics |
US2778059A (en) * | 1954-02-03 | 1957-01-22 | Western Electric Co | Methods of and apparatus for making insulated multiconductor wire |
US3205692A (en) * | 1963-11-06 | 1965-09-14 | Reynolds Metals Co | Method of producing hollow extruded products |
GB1144046A (en) * | 1966-02-05 | 1969-03-05 | Induplas S P A | Method and apparatus for the manufacturing of tubes of plastics material |
FR1547394A (fr) * | 1967-03-15 | 1968-11-29 | Pneumatiques, Caoutchouc Manufacture Et Plastiques Kleber-Colombes | Procédé et dispositif de fabrication de tuyaux |
AT279998B (de) * | 1967-05-09 | 1970-03-25 | Rohde & Doerrenberg | Verfahren zum Herstellen von Spiralbohrern od.ähnl Werkzeugen sowie nach dem Verfahren hergestellter Spiralbohrer |
GB1230991A (de) * | 1967-05-30 | 1971-05-05 | ||
UST869007I4 (en) * | 1968-12-26 | 1969-12-16 | Apparatus and process for extruding elastomeric material | |
US3651187A (en) * | 1969-10-16 | 1972-03-21 | Hercules Inc | Extrusion process |
US4120628A (en) * | 1971-05-05 | 1978-10-17 | General Enterprises Corp., Ltd. | Apparatus for manufacturing plastic tubes from plastics of dissimilar properties |
ES217858Y (es) * | 1974-12-20 | 1977-01-01 | Industrie Pirelli, S. P. A. | Cabeza de trefiladora para extruir material plastomero o elastomero alrededor de filamentos. |
FR2348775A1 (fr) * | 1976-04-23 | 1977-11-18 | Powdrex Ltd | Procede de production d'un objet metallique presentant au moins un canal helicoidal interieur |
DE3309860A1 (de) * | 1983-02-08 | 1984-08-09 | Fa. Gottlieb Gühring, 7470 Albstadt | Bohrwerkzeug |
DK170773B1 (da) * | 1983-06-21 | 1996-01-15 | Hoffmann La Roche | Fremgangsmåde til fremstilling af d-alfa-tocopherol |
DE3600681A1 (de) * | 1985-10-31 | 1987-05-07 | Krupp Gmbh | Hartmetall- oder keramikbohrerrohling sowie verfahren und strangpresswerkzeug zu seiner herstellung |
DE3601385A1 (de) * | 1986-01-18 | 1987-07-23 | Krupp Gmbh | Verfahren zur herstellung von sinterkoerpern mit inneren kanaelen, strangpresswerkzeug zur durchfuehrung des verfahrens und bohrwerkzeug |
DE8717444U1 (de) * | 1987-04-30 | 1989-01-12 | Fried. Krupp Gmbh, 4300 Essen, De | |
DE3717967A1 (de) * | 1987-05-27 | 1988-12-15 | Doellken & Co Gmbh W | Strangpresswerkzeug zum strangpressen eines marmorierten profils aus thermoplastischem kunststoff |
SU1574308A1 (ru) * | 1987-12-02 | 1990-06-30 | Киевский Политехнический Институт Им.50-Летия Великой Октябрьской Социалистической Революции | Способ прессовани малопластичных металлов и сплавов и инструмент дл его осуществлени |
DE3904588A1 (de) * | 1989-02-16 | 1990-08-23 | Freudenberg Carl Fa | Verfahren zur herstellung eines fadenverstaerkten und stranggepressten gummikoerpers |
AT400687B (de) * | 1989-12-04 | 1996-02-26 | Plansee Tizit Gmbh | Verfahren und strangpresswerkzeug zur herstellung eines rohlings mit innenliegenden bohrungen |
DE4120165C2 (de) * | 1990-07-05 | 1995-01-26 | Friedrichs Konrad Kg | Strangpreßwerkzeug zur Herstellung eines Hartmetall- oder Keramikstabes |
DE4021383C2 (de) * | 1990-07-05 | 1994-01-27 | Friedrichs Konrad Kg | Verfahren zur Herstellung eines Hartmetall- oder Keramikstabes und Strangpreßwerkzeug zur Durchführung des Verfahrens |
DE4244861C2 (de) * | 1992-04-08 | 1997-11-13 | Guehring Joerg Dr | Zylindrischer, aus einer plastischen Masse bestehender und extrudierter Rohling mit zumindest einem innenliegenden, wendelförmigen Kanal sowie Verfahren und Vorrichtung zu dessen Herstellung |
-
1991
- 1991-06-19 DE DE4120166A patent/DE4120166C2/de not_active Expired - Fee Related
-
1992
- 1992-06-17 AT AT92913017T patent/ATE133879T1/de active
- 1992-06-17 WO PCT/EP1992/001379 patent/WO1992022390A1/de active IP Right Grant
- 1992-06-17 EP EP92913017A patent/EP0590008B1/de not_active Expired - Lifetime
- 1992-06-17 ES ES92913017T patent/ES2082478T3/es not_active Expired - Lifetime
- 1992-06-17 JP JP50076193A patent/JP3312355B2/ja not_active Expired - Fee Related
- 1992-06-17 US US08/162,137 patent/US5438858A/en not_active Expired - Lifetime
- 1992-06-17 DE DE59205315T patent/DE59205315D1/de not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO9222390A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE4120166C2 (de) | 1994-10-06 |
DE59205315D1 (de) | 1996-03-21 |
DE4120166A1 (de) | 1993-01-07 |
JP3312355B2 (ja) | 2002-08-05 |
US5438858A (en) | 1995-08-08 |
ATE133879T1 (de) | 1996-02-15 |
WO1992022390A1 (de) | 1992-12-23 |
EP0590008B1 (de) | 1996-02-07 |
JPH06508301A (ja) | 1994-09-22 |
ES2082478T3 (es) | 1996-03-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0590008B1 (de) | Strangpresswerkzeug zur herstellung eines hartmetall-oder keramikstabes mit gedrallten innenbohrungen | |
EP0465946B1 (de) | Hartmetall- oder Keramikstab, Verfahren zu seiner Herstellung und Strangpresswerkzeug zur Durchführung des Verfahrens | |
DE19644447C2 (de) | Verfahren und Vorrichtung zur kontinuierlichen Extrusion von mit einem wendelförmigen Innenkanal ausgestatteten Stäben aus plastischem Rohmaterial | |
EP0223909A1 (de) | Strangpresswerkzeug zur Herstellung eines Hartmetall- oder Keramik-Bohrerrohlings | |
EP0429917A2 (de) | Verfahren zur Herstellung einer Gewindebohrung | |
DE4021383C2 (de) | Verfahren zur Herstellung eines Hartmetall- oder Keramikstabes und Strangpreßwerkzeug zur Durchführung des Verfahrens | |
DE4242336A1 (de) | Verfahren und Vorrichtung zur kontinuierlichen Herstellung von zylindrischen Stäben mit zumindest einem innenliegenden, wendelförmigen Kanal, und nach diesem Verfahren hergestellter Sinterrohling | |
WO2006042491A2 (de) | Einwellige, kontinuerlich arbeitende misch- und kraftmaschine mit konischem schaft | |
EP0634959B1 (de) | Verfahren und vorrichtung zur kontinuierlichen herstellung von zylindrischen stäben mit zumindest einem innenliegenden, wendelförmigen kanal, und nach diesem verfahren hergestellter sinterrohling | |
EP1519799B1 (de) | Strangpresswerkzeug zur herstellung eines aus plastischer masse bestehenden zylindrischen k rpers | |
EP2313218B1 (de) | Verfahren und vorrichtung zur herstellung eines aus plastischer masse bestehenden kreiszylindrischen körpers mit innenliegenden wendelförmigen ausnehmungen | |
DE102014014592A1 (de) | Vorrichtung zum Auftragen eines viskosen Materials | |
DE102018202941B4 (de) | Verfahren zur Herstellung eines Rohlings aus Extrusionsmasse sowie Extruder | |
DE4211827C2 (de) | Verfahren und Strangpreßwerkzeug zur kontinuierlichen Herstellung von zylindrischen Stäben mit zumindest einem innenliegenden, wendelförmigen Kanal, und nach diesem Verfahren hergestellter Stab | |
DE3734123C2 (de) | ||
DE3448025A1 (de) | Verfahren zur herstellung von rotoren fuer schraubenverdichter | |
DE2636953C2 (de) | Verteilungsvorrichtung zur Zuführung von Druckluft zu den Wirbelkammerdüsen einer Einrichtung zur Herstellung eines gezwirnten Garns | |
DE10040309C1 (de) | Herstellungsverfahren für einen Sinterstab und Sinterstab | |
WO2004002642A1 (de) | Strangpresswekzeug zur herstellung eines aus plastischer masse bestehenden zylindrischen körpers | |
DE3839621A1 (de) | Planetwalzenextruder | |
DE2165439C3 (de) | Scheibenextruder zur Verarbeitung von polymeren Stoffen | |
DE8536805U1 (de) | Strangpreßwerkzeug zur Herstellung eines Hartmetall- oder Keramikbohrerrohlings | |
DE1013612B (de) | Einrichtung zum Kaltwalzen von achsparallelen Profilen, z.B. Verzahnungen | |
EP1660297A1 (de) | Düsenkopf für einen extruder |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 19931209 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT CH DE DK ES FR GB IT LI LU NL SE |
|
17Q | First examination report despatched |
Effective date: 19950123 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT CH DE DK ES FR GB IT LI LU NL SE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 19960207 Ref country code: DK Effective date: 19960207 |
|
REF | Corresponds to: |
Ref document number: 133879 Country of ref document: AT Date of ref document: 19960215 Kind code of ref document: T |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 19960209 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2082478 Country of ref document: ES Kind code of ref document: T3 |
|
REF | Corresponds to: |
Ref document number: 59205315 Country of ref document: DE Date of ref document: 19960321 |
|
ET | Fr: translation filed | ||
REG | Reference to a national code |
Ref country code: CH Ref legal event code: NV Representative=s name: ISLER & PEDRAZZINI AG PATENTANWAELTE |
|
ITF | It: translation for a ep patent filed |
Owner name: STUDIO TORTA SOCIETA' SEMPLICE |
|
NLV1 | Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act | ||
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed | ||
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PFA Free format text: GOTTLIEB GUEHRING KG;KONRAD FRIEDRICHS KG TRANSFER- KONRAD FRIEDRICHS KG;GUEHRING OHG |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: CD |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: PC2A |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: IF02 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: ES Payment date: 20020617 Year of fee payment: 11 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: LU Payment date: 20020627 Year of fee payment: 11 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20030617 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20030618 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FD2A Effective date: 20030618 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PCAR Free format text: ISLER & PEDRAZZINI AG;POSTFACH 1772;8027 ZUERICH (CH) |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 20110627 Year of fee payment: 20 Ref country code: SE Payment date: 20110616 Year of fee payment: 20 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20110616 Year of fee payment: 20 Ref country code: AT Payment date: 20110620 Year of fee payment: 20 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20110620 Year of fee payment: 20 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20110711 Year of fee payment: 20 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20110630 Year of fee payment: 20 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R071 Ref document number: 59205315 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R071 Ref document number: 59205315 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: PE20 Expiry date: 20120616 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION Effective date: 20120619 |
|
REG | Reference to a national code |
Ref country code: SE Ref legal event code: EUG |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION Effective date: 20120616 |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: MK07 Ref document number: 133879 Country of ref document: AT Kind code of ref document: T Effective date: 20120617 |