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11.发明授权
公开(公告)号：EP0493535B1
公开(公告)日：1995-12-06
申请号：EP91901019.9
申请日：1990-09-20
Applicant: STEWART, Charles L.
Inventor： STEWART, Charles L.
Abstract: An apparatus (10) for pre-piercing billets (110) includes a generally cylindrical container (66) for receiving and supporting a generally cylindrical billet (110), a mandrel bar (36) mounted for axial movement along the axis of the cylinder for penetrating the billet (110), and a bolster (90) for engaging the billet (110) during penetration of the billet (110) by the mandrel bar (36), wherein the bolster (90) includes a bolster pin (94) which is axially movable along the axis of the container (66), the bolster pin (94) having an end which contacts the billet (110) during penetration of the billet (110) by the mandrel bar (36) such that the billet (110) deforms about the end of the bolster pin (94). A movable support (42) is carried by the mandrel bar (36) toward the billet (110) during advancement of the mandrel bar (36) prior to pre-piercing the billet (110), the movable support (42) being configured to enter the generally cylindrical container (66) to engage a portion of the container (66) so as to provide additional structural rigidity to the mandrel bar (36) to resist deflection of the mandrel bar (36) during penetration of the billet (110).
Abstract translation: 用于预穿孔坯料的装置包括用于容纳和支撑大致圆柱形坯料的大致圆柱形容器，安装成用于沿着圆柱体的轴线轴向移动以穿透坯料的芯棒，以及用于在穿透坯料期间接合坯料的垫板 其中所述垫片包括可沿着所述容器的轴线可轴向移动的撑杆销，所述垫子销具有在通过所述芯棒穿过所述坯料期间接触所述坯料的端部，使得所述坯料围绕所述芯棒 枕头针的末端。 可移动的支撑件在预先穿孔坯料之前在芯棒的前进期间由芯棒承载到坯料上，可移动的支撑件构造成进入大致圆柱形的容器以接合容器的一部分，以便提供额外的结构 芯棒的刚性，以防止在坯料穿透期间芯棒的偏转。
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12.发明公开
公开(公告)号：EP0316344A4
公开(公告)日：1990-06-27
申请号：EP87905085
申请日：1987-07-17
Applicant: STEWART CHARLES L
Inventor： STEWART CHARLES L
CPC classification number: B21C23/218 , B21C23/214
Abstract: The indirect extrusion press includes a container (13) with opposite axial ends and an axial cavity for receiving a billet (17). A bolster (21) is disposed adjacent one axial end of the container for blocking movement of a billet out of the cavity when a force is applied against the billet from the other axial end of the container. A ram (31) is mounted on the side of the container adjacent the other axial end of the container for movement in the axial direction of the container. A rotatable turret (43) is mounted on the ram, and a hollow pressing stem (55) is mounted on the turret. The turret is rotatable for placing the hollow pressing stem in a first position aligned with the extrusion axis, and in a second position off of the extrusion axis. When the hollow pressing stem is in the first position it communicates with an axial passage through the ram and can be moved axially, via the ram, to press a die through the cavity to extrude a billet to form an extrusion product. When the hollow pressing stem is in the second position it permits other tooling (57) to perform operations on the extrusion axis of the press.
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13.发明公开
公开(公告)号：EP0316344A1
公开(公告)日：1989-05-24
申请号：EP87905085.0
申请日：1987-07-17
Applicant: STEWART, Charles L.
Inventor： STEWART, Charles L.
CPC classification number: B21C23/218 , B21C23/214
Abstract: Une presse à extrusion indirecte comprend un récipient (13) comportant des extrémités axiales opposées et une cavité axiale destinée à recevoir une billette (17). Un butoir est disposé de façon adjacente à l'une des extrémités axiales du récipient et sert à bloquer le mouvement d'une billette hors de la cavité lorsqu'une force est appliquée contre la billette à partir de l'autre extrémité axiale du récipient. Un pilon (31) est monté sur le côté du récipient de façon adjacente à l'autre extrémité axiale du récipient en vue d'un mouvement dans la direction axiale du récipient. Une tourelle rotative (43) est montée sur le pilon et une tige de pressage creuse (55) est montée sur la tourelle. La tourelle tourne afin de permettre le positionnement de la tige de pressage creuse dans une première position alignée sur l'axe d'extrusion et dans une seconde position décalée par rapport à l'axe d'extrusion. Lorsque la tige de pressage creuse se trouve dans sa première position, elle communique avec un passage axial ménagé dans le pilon et peut se déplacer axialement à l'aide du pilon afin de presser une filière dans la cavité, permettant ainsi l'extrusion d'une billette destinée à former un produit d'extrusion. Lorsque la tige de pressage creuse est dans sa seconde position, elle permet à d'autres outils (57) d'effectuer des opérations sur l'axe d'extrusion de la presse.
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公开(公告)号：EP0296178A1
公开(公告)日：1988-12-28
申请号：EP87905417.0
申请日：1987-03-04
Applicant: STEWART, Charles L.
Inventor： STEWART, Charles L.
CPC classification number: B21C35/04 , B21C23/214 , B21C23/218 , B21C33/00
Abstract: Un procédé d'extrusion indirecte et un appareil de réalisation dudit procédé permettent d'obtenir un produit d'extrusion à partir d'une billette de métal chaud (25). Un conteneur de presse (21A) est monté en position fixe de façon sensiblement axiale durant l'extrusion de la billette. La billette chaude (25), un moule (27) et un disque de pression (29) sont chargés dans l'alésage traversant axial (24) du conteneur (21A), de telle sorte que la billette est prise en sandwich entre le moule (27) et le disque de pression (29), dont le diamètre extérieur maximum entre ses faces radiales opposées est légèrement inférieur au diamètre de l'alésage traversant axial (24), un espace libre diamétral (55 et 57) étant ainsi défini entre le disque de pression et le conteneur de presse. Une matrice (31) est placée adjacente au disque de pression (29) et est fixée de façon axiale, afin d'empêcher tout mouvement axial sensible du disque de pression en direction de la matrice durant l'extrusion. La matrice (31) exerce une force axiale relativement insignifiante sur le conteneur (21A). Une tige allongée (17) présentant un passage axial est déplacée dans l'alésage traversant du conteneur, afin de permettre au moule d'exercer une pression en direction de la matrice, ce qui provoque l'extrusion de la billette au travers du moule et permet la création d'un produit d'extrusion sortant du conteneur par le passage axial (19) ménagé dans la tige, tandis que toute extrusion de la billette au travers de l'espace libre diamétral situé entre le disque de pression et le conteneur est pratiquement évitée.
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公开(公告)号：GB2364247B
公开(公告)日：2004-09-01
申请号：GB0109526
申请日：2001-04-17
Applicant: COLE STEWART CHARLES
Inventor： COLE STEWART CHARLES
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Patent Agency Ranking
公开(公告)号：RU2087241C1
公开(公告)日：1997-08-20
申请号：SU5011658
申请日：1990-09-20
Applicant: STEWART CHARLES L
Inventor： STEWART CHARLES L
IPC: H04B7/26 , B21C23/08 , B21J5/10 , B21J9/04 , H03K5/156 , H04B20060101 , H04B3/60 , H04B7/00 , H04L5/14 , H04L12/40
Abstract: An apparatus for pre-piercing billets includes a generally cylindrical container for receiving and supporting a generally cylindrical billet, a mandrel bar mounted for axial movement along the axis of the cylinder for penetrating the billet, and a bolster for engaging the billet during penetration of the billet by the mandrel bar, wherein the bolster includes a bolster pin which is axially movable along the axis of the container, the bolster pin having an end which contacts the billet during penetration of the billet by the mandrel bar such that the billet deforms about the end of the bolster pin. A movable support is carried by the mandrel bar toward the billet during advancement of the mandrel bar prior to pre-piercing the billet, the movable support being configured to enter the generally cylindrical container to engage a portion of the container so as to provide additional structural rigidity to the mandrel bar to resist deflection of the mandrel bar during penetration of the billet.
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公开(公告)号：BG61029B1
公开(公告)日：1996-09-30
申请号：BG9625092
申请日：1992-04-17
Applicant: STEWART CHARLES L
Inventor： STEWART CHARLES L
IPC: H04B7/26 , B21C23/08 , B21J5/10 , B21J9/04 , H03K5/156 , H04B20060101 , H04B3/60 , H04B7/00 , H04L5/14 , H04L12/40
Abstract: An apparatus for pre-piercing billets includes a generally cylindrical container for receiving and supporting a generally cylindrical billet, a mandrel bar mounted for axial movement along the axis of the cylinder for penetrating the billet, and a bolster for engaging the billet during penetration of the billet by the mandrel bar, wherein the bolster includes a bolster pin which is axially movable along the axis of the container, the bolster pin having an end which contacts the billet during penetration of the billet by the mandrel bar such that the billet deforms about the end of the bolster pin. A movable support is carried by the mandrel bar toward the billet during advancement of the mandrel bar prior to pre-piercing the billet, the movable support being configured to enter the generally cylindrical container to engage a portion of the container so as to provide additional structural rigidity to the mandrel bar to resist deflection of the mandrel bar during penetration of the billet.
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公开(公告)号：FI96283C
公开(公告)日：1996-06-10
申请号：FI890241
申请日：1989-01-17
Applicant: STEWART CHARLES L
Inventor： STEWART CHARLES L
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公开(公告)号：FI96283B
公开(公告)日：1996-02-29
申请号：FI890241
申请日：1989-01-17
Applicant: STEWART CHARLES L
Inventor： STEWART CHARLES L
Abstract: An indirect extrusion press and method of operating the press. The press includes a container with opposite axial ends and an axial cavity for receiving a billet. The container is mounted for aligning the axial cavity with the extrusion axis. A bolster is disposed adjacent one axial end of the container for blocking movement of a billet out of the cavity when a force is applied against the billet from the other axial end of the container. A ram is mounted on the side of the container adjacent the other axial end of the container for movement in the axial direction of the container. The ram has an axial passage therethrough aligned with the extrusion axis. A rotatable turret is mounted on the ram, and a hollow pressing stem is mounted on the turret. The turret is rotatable for placing the hollow pressing stem in a first position aligned with the extrusion axis, and in a second position off of the extrusion axis. When the hollow pressing stem is in the first position it communicates with the axial passage through the ram and can be moved axially, via the ram, to press a die through the cavity to extrude a billet to form an extrusion product which exits the container via the hollow pressing stem and the axial passage in the ram. When the hollow pressing stem is in the second position it permits other tooling to perform operations on the extrusion axis of the press.
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公开(公告)号：IE62308B1
公开(公告)日：1995-01-25
申请号：IE338690
申请日：1990-09-19
Applicant: STEWART CHARLES L
Inventor： STEWART CHARLES L
IPC: H04B7/26 , B21C23/08 , B21J5/10 , B21J9/04 , H03K5/156 , H04B20060101 , H04B3/60 , H04B7/00 , H04L5/14 , H04L12/40
Abstract: An apparatus for pre-piercing billets includes a generally cylindrical container for receiving and supporting a generally cylindrical billet, a mandrel bar mounted for axial movement along the axis of the cylinder for penetrating the billet, and a bolster for engaging the billet during penetration of the billet by the mandrel bar, wherein the bolster includes a bolster pin which is axially movable along the axis of the container, the bolster pin having an end which contacts the billet during penetration of the billet by the mandrel bar such that the billet deforms about the end of the bolster pin. A movable support is carried by the mandrel bar toward the billet during advancement of the mandrel bar prior to pre-piercing the billet, the movable support being configured to enter the generally cylindrical container to engage a portion of the container so as to provide additional structural rigidity to the mandrel bar to resist deflection of the mandrel bar during penetration of the billet.
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