公开(公告)号：US3722075A

公开(公告)日：1973-03-27

申请号：US3722075D

申请日：1971-01-19

Applicant: FAY J

Inventor： FAY J

IPC: B21C37/12 ,  B23K11/08 ,  B23K33/00 ,  B23K31/02

CPC classification number: B21C37/122 ,  B21C37/124 ,  B23K11/084 ,  B23K33/006 ,  B23K2201/06 ,  B23K2201/16

Abstract: A method and apparatus for continuously producing spiral pipe from sheet material including feeding a strip of the sheet material into a spiral pipe forming machine, continuously deforming a portion of the longitudinal edges of the sheet material so as to bend the edge downwardly toward the axis of the formed pipe and out of the normal plane of the sheet material, forming the sheet material into a spiral tube and bringing the deformed edges into parallel face to face abutting relationship, welding the edges into seam, and reforming the deformed portion of the sheet material to provide a smooth forged weld.

Abstract translation: 一种用于从板材连续生产螺旋管的方法和装置，包括将片材的条带进入螺旋管成形机，使片材的纵向边缘的一部分连续变形，使得边缘向下弯曲 形成的管道并且在板材的正常平面之外，将片材材料形成为螺旋管并使变形的边缘面对面地抵接，将边缘焊接成接缝，并且对片材的变形部分进行重整 提供平稳的锻造焊缝。

公开(公告)号：US3504427A

公开(公告)日：1970-04-07

申请号：US3504427D

申请日：1967-12-04

Applicant: TAYLOR WINFIELD CORP

Inventor： SEELOFF MELVIN M

IPC: B23K11/06 ,  B23K31/02

CPC classification number: B23K11/061 ,  B23K2201/16

公开(公告)号：US1972871A

公开(公告)日：1934-09-11

申请号：US59258832

申请日：1932-02-12

Applicant: CORNWELL CHARLES H

Inventor： CORNWELL CHARLES H

IPC: B23K20/02

CPC classification number: B23K20/02 ,  B23K2201/16