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公开(公告)号：US09636725B2
公开(公告)日：2017-05-02
申请号：US14427616
申请日：2013-08-28
Applicant: SMS INNSE S.P.A.
Inventor： Guido Emilio Zanella , Vincenzo Palma , Marco Ghisolfi
Abstract: The invention relates to a pipe rolling plant 10 comprising a rotary piercer 20, a treatment station 30 and a main rolling mill 40. The rotary piercer and the treatment station are arranged so that the pierced blank 51 leaving them is arranged with the irregular tail 511 facing the main rolling mill 40 and with the regular head 510 facing the mandrel 41. The invention also relates to a rolling mill 40 comprising a plurality of rolling stations 43, each station comprising a plurality of rolling rolls 42, the radial position h of which is adjustable. The rolling mill also comprises a control circuit for calculating and/or measuring the distance d between the axes of rotation r of the rolls and the trailing edge 520 of the pipe 52. The control circuit is also designed to displace the rolling rolls radially towards the outside of the pipe in each rolling station 43n when the distance d assumes a predetermined value d0.
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公开(公告)号：US20150246381A1
公开(公告)日：2015-09-03
申请号：US14427616
申请日：2013-08-28
Applicant: SMS INNSE S.P.A.
Inventor： Guido Emilio Zanella , Vincenzo Palma , Marco Ghisolfi
Abstract: The invention relates to a pipe rolling plant 10 comprising a rotary piercer 20, a treatment station 30 and a main rolling mill 40. The rotary piercer and the treatment station are arranged so that the pierced blank 51 leaving them is arranged with the irregular tail 511 facing the main rolling mill 40 and with the regular head 510 facing the mandrel 41. The invention also relates to a rolling mill 40 comprising a plurality of rolling stations 43, each station comprising a plurality of rolling rolls 42, the radial position h of which is adjustable. The rolling mill also comprises a control circuit for calculating and/or measuring the distance d between the axes of rotation r of the rolls and the trailing edge 520 of the pipe 52. The control circuit is also designed to displace the rolling rolls radially towards the outside of the pipe in each rolling station 43, when the distance d assumes a predetermined value d0.
Abstract translation: 本发明涉及一种包括旋转穿孔机20，处理站30和主轧机40的管轧设备10.旋转式穿孔机和处理台布置成使得离开它们的穿孔坯料51布置有不规则尾部511 面对主轧机40并且正面头部510面向心轴41.本发明还涉及包括多个轧制站43的轧机40，每个工位包括多个轧制辊42，其中径向位置h 是可调节的 轧机还包括用于计算和/或测量辊的旋转轴线r和管52的后缘520之间的距离d的控制电路。控制回路还设计成将轧制辊径向地朝向 在每个滚动站43中的管道外部，当距离d达到预定值d0时。
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公开(公告)号：US20170173650A1
公开(公告)日：2017-06-22
申请号：US15403601
申请日：2015-07-08
Applicant: SMS INNSE S.P.A.
Abstract: The present invention relates to a plant 10 for rolling a seamless tube. The plant comprises a rotary piercer 20 which is designed to pierce a billet 11 pressed against a plug 22 mounted on a rod so as to obtain a pierced blank 12. The rod is connected to a thrust block 26 designed to oppose the axial thrust which is produced on the rod during piercing. The plant also comprises a longitudinal mill 30 which is designed to roll the pierced blank 12 on a mandrel 32 so as to obtain a semi-finished tube 13. The mandrel is connected to a retaining block 34 designed to impart to the mandrel a predetermined speed during rolling. In the plant according to the invention the thrust block 26 and the retaining block 34 are formed by a single thrust/retaining block 36. The invention also relates to a method for rolling a seamless tube.
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公开(公告)号：US20170165729A1
公开(公告)日：2017-06-15
申请号：US15403420
申请日：2015-07-09
Applicant: SMS INNSE S.P.A.
Abstract: The present invention relates to a compact plant 10 for rolling a seamless tube. The plant comprises a rotary piercer 20 which defines a rolling axis XPR and is designed to pierce a billet 11 pressed against a plug 22 mounted on a rod so as to obtain a pierced blank 12. The rod is connected to a thrust block 26 designed to oppose the axial thrust during piercing. The plant also comprises a longitudinal mill 30 which defines a rolling axis XLL and is designed to roll the pierced blank 12 on a mandrel 32 so as to obtain a semi-finished tube 13. The mandrel is connected to a retaining block 34 designed to impart to the mandrel a predetermined speed during rolling. In the plant 10 according to the invention the rolling axes XPR and XLL coincide. The invention also relates to a method for rolling a seamless tube.
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