-
公开(公告)号:US3697718A
公开(公告)日:1972-10-10
申请号:US3697718D
申请日:1971-02-12
申请人: MANNESMANN AG
发明人: HOLLEN DIETER VON , HOLDER HEINZ
CPC分类号: B21C37/122 , B23K11/084
摘要: Pipes are made from helically wrapped strips, having one edge uniformly bevelled, the other one roof shaped with h-f heating of the two edges, where one roof side faces the uniform bevel surface. This joint is pressure welded, and the resulting groove is filled by subsequent fusion welding without requiring removal of any burr from the groove.
摘要翻译: 管道由螺旋缠绕的条带制成,其一个边缘均匀地被斜切,另一个屋顶由两个边缘的h-f加热形成,其中一个屋顶侧面向均匀的斜面。 该接头被压焊,并且通过后续的熔焊来填充所得到的槽,而不需要从槽中去除任何毛刺。
-
82.
公开(公告)号:US3669181A
公开(公告)日:1972-06-13
申请号:US3669181D
申请日:1970-10-23
申请人: MANNESMANN AG
发明人: SCHREWE HANS
CPC分类号: B22D41/50
摘要: Particularly oriented deflector plates are disposed in front of submerged ports for charging a mold during continuous casting of steel.
摘要翻译: 特别定向的偏转板设置在浸没的端口的前面,用于在钢的连续铸造期间对模具充电。
-
公开(公告)号:US3616006A
公开(公告)日:1971-10-26
申请号:US3616006D
申请日:1969-07-07
申请人: MANNESMANN AG
发明人: LANDGRAF HELMUT , QUITMANN WALTER
CPC分类号: F16L58/16 , B29C63/105 , B65H81/08
摘要: A method of enveloping a steel pipe includes the simultaneous winding of the heated pipe with a twin layer of two materials in screw thread fashion. The outer material is a thermoplastic synthetic sheet, and the inner material an adhesive strip.
-
公开(公告)号:US3581384A
公开(公告)日:1971-06-01
申请号:US3581384D
申请日:1968-06-25
申请人: MANNESMANN AG
CPC分类号: B21C1/22 , B21B19/14 , B21B23/00 , B21C37/06 , Y10T29/49991
摘要: SEAMLESS TUBES ARE PRODUCED, FROM HOLLOW BLANKS OBTAINED BY CONTINUOUSLY CASTING, AND THE BLANKS HAVE A RATIO OF OUTER TO INNER DIAMETER OF ABOUT 2:1 TO ABOUT 5:1 AND A WALL THICKNESS OF AT LEAST 150 MM. AND AN INNER DIAMETER OF AT LEAST 80 MM., BY STRETCH ROLLING THE BLANKS, HEATING THEM AND FURTHER ROLLING THEM. A ROLLING MACHINE INCLUDES A THREE-RTOLL DIAGONAL ROLLING MILL, AND EACH ROLL HAS A SHOULDER CALIBRATION, AND A HOLLOW NOZZLE CARRYING MANDREL ROD THAT IS CAPABLE OF RECEIVING AND SPRAYING A PRESSURE WATER.
-
公开(公告)号:US3459209A
公开(公告)日:1969-08-05
申请号:US3459209D
申请日:1967-08-30
申请人: MANNESMANN AG
发明人: KOBUSCH HELMUT , GRUNER JOHANNES , PFEIFFER ARNOLD
CPC分类号: C21C5/46 , C21C5/4653 , F27D3/1536 , Y10T137/3006 , Y10T137/7326 , Y10T137/7436
-
公开(公告)号:US3442535A
公开(公告)日:1969-05-06
申请号:US3442535D
申请日:1966-11-08
申请人: MANNESMANN AG
发明人: FROHLICH JOSEF
CPC分类号: F16L37/1205 , Y10T24/1471
-
公开(公告)号:US3433289A
公开(公告)日:1969-03-18
申请号:US3433289D
申请日:1966-06-23
申请人: MANNESMANN AG
发明人: SCHREWE HANS
IPC分类号: B22D11/128 , B22D11/12
CPC分类号: B22D11/1287
-
公开(公告)号:US3433049A
公开(公告)日:1969-03-18
申请号:US3433049D
申请日:1966-07-29
申请人: MANNESMANN AG
发明人: NAESER GERHARD , WESSEL OTTO , DARSCHEWSKI KURT
CPC分类号: B21C25/025 , Y10T428/12042 , Y10T428/12063 , Y10T428/12972
-
公开(公告)号:US3429365A
公开(公告)日:1969-02-25
申请号:US3429365D
申请日:1965-12-28
申请人: MANNESMANN AG
发明人: SCHREWE HANS
IPC分类号: B22D11/041 , B22D11/02 , B22D11/12 , B22D27/08
CPC分类号: B22D11/041
-
公开(公告)号:US3357827A
公开(公告)日:1967-12-12
申请号:US55854066
申请日:1966-05-31
申请人: MANNESMANN AG
CPC分类号: B22F9/082 , B22F1/0088 , C22C33/02 , C23C8/26
-
-
-
-
-
-
-
-
-