公开(公告)号：US3976520A

公开(公告)日：1976-08-24

申请号：US459208

申请日：1974-04-08

Applicant: Friedhelm Reinke ,  Hermann Voss ,  Herbert Geisel

Inventor： Friedhelm Reinke ,  Hermann Voss ,  Herbert Geisel

IPC: B23K35/30 ,  C21D9/50 ,  C21D9/08

CPC classification number: B23K35/3066 ,  C21D9/50 ,  Y10T428/12965

Abstract: A method for producing a welded and quench hardened steel pipe and pipe whereby the weld seam running spirally or longitudinally along the pipe length has a lower austenization temperature than the pipe and/or a higher electrical resistance. The ratio of the pipe to seam resistance is preferably greater than one half and the whole of the square of the ratio between pipe wall thickness and mean seam thickness. The seam preferably includes amounts of C, Si, and Mn in the same percentage as the pipe plus nickel between 2-6%.

Abstract translation: 一种用于制造焊接和淬火硬化的钢管和管的方法，由此沿管长度螺旋地或纵向延伸的焊缝具有比管更低的奥氏体化温度和/或更高的电阻。 管与接缝电阻的比率优选大于管壁厚度与平均接缝厚度之比的整数的一半。 接缝优选包含与管道相同百分比的C，Si和Mn量加上2-6％之间的镍。

公开(公告)号：US4147569A

公开(公告)日：1979-04-03

申请号：US758337

申请日：1977-01-10

Applicant: Friedhelm Reinke ,  Friedhelm Emde ,  Herbert Geisel ,  Rolf Gies ,  Friedrich Muller-Axt ,  Klaus Lange ,  Manfred Schoenen

Inventor： Friedhelm Reinke ,  Friedhelm Emde ,  Herbert Geisel ,  Rolf Gies ,  Friedrich Muller-Axt ,  Klaus Lange ,  Manfred Schoenen

IPC: C21D9/08 ,  C21D9/14

CPC classification number: C21D9/08 ,  Y10S148/093

Abstract: A process for heating at least two metal pipes wherein each pipe is individually preheated in response to sensors detecting its initial temperature and wall thickness. The pipe then passes through a continuous heater which applies an equal amount of energy to each portion of the pipe, after which each pipe emerges having a predetermined temperature independent of both its initial temperature and the wall thickness.

Abstract translation: 一种用于加热至少两个金属管的方法，其中每个管根据检测其初始温度和壁厚的传感器单独预热。 然后，管道通过连续的加热器，其对管道的每个部分施加相等的能量，之后每个管道具有独立于其初始温度和壁厚的预定温度。

公开(公告)号：US3329591A

公开(公告)日：1967-07-04

申请号：US39778064

申请日：1964-09-21

Applicant: HANS-HEINZ MULLER ,  HERBERT GEISEL

Inventor： HANS-HEINZ MULLER ,  HERBERT GEISEL

IPC: C21D9/60 ,  H05B6/02

CPC classification number: C21D9/60 ,  Y02P10/253