Hot-rolling process for seamless tubes with preliminary diameter

Metal deforming – By use of tool acting during relative rotation between tool... – During rotation of work

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

72208, 72370, B21B 1704, B21B 1904

Patent

active

051096897

ABSTRACT:
In an improved process for hot-rolling of seamless tubes with preliminary diameter reduction of the semifinished products (axially pierced round blanks), the coreless reduction step (without mandrel) occurs immediately before the step of continuous rolling on a mandrel and practically at the same time of driving the mandrel into the pierced blank, without interferences therebetween. The apparatus carrying out this operation is positioned immediately upstream of the continuous mill with mandrel, so as to form with this a single unit on the same line, thus reducing the need for room, the operation time and consequently the blank cooling before rolling, whereby the last stand of the rolling mill is reached at a sufficient temperature for rolling without any need of intermediate heating steps.

REFERENCES:
patent: 4375160 (1983-03-01), Verdickt
patent: 4480457 (1984-11-01), Moltner
patent: 4571970 (1986-02-01), Moltner et al.
patent: 4798071 (1989-01-01), Staat et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Hot-rolling process for seamless tubes with preliminary diameter does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hot-rolling process for seamless tubes with preliminary diameter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hot-rolling process for seamless tubes with preliminary diameter will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1404621

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.