Scarfing method and apparatus

B - Operations – Transporting – 23 – K

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

B23K 7/08 (2006.01) B23K 7/06 (2006.01) B23K 7/10 (2006.01) F23D 14/56 (2006.01) F23D 14/58 (2006.01)

Patent

CA 2084395

A thermochemical scarfing method and apparatus are disclosed which allows a greater diagonal standoff distance from the metal workpiece during preheating. The method includes preheating the end of the metal workpiece, and then scarfing the workpiece by directing a scarfing oxygen stream onto the workpiece at an acute angle and while moving the workpiece past the oxygen outlet port. The preheating step includes generating a high speed stream of oxidizing gas and a concentric stream of fuel gas coaxially about the central stream, so that the momentum of the central stream is maintained. As a result, the effective flame heating distance may be extended, and the manifold and head assembly which supports the preheating gas nozzles may be moved back from the workpiece a significant standoff distance so as to avoid damage from dislodged molten metal slag.

Méthode et appareil de décapage thermochimique permettant une plus grande distance de retrait diagonale par rapport à la pièce de métal à travailler durant le préchauffage. La méthode consiste à préchauffer le bout de la pièce de métal à travailler, puis à décaper la pièce en dirigeant sur elle un jet d'oxygène à un angle aigu, tout en faisant passer la pièce devant l'orifice de sortie de l'oxygène. L'étape de préchauffage comprend la génération d'un jet à haute vitesse de gaz oxidant et d'un jet concentrique de gaz de combustion coaxialement autour du jet central, de manière à maintenir la force vive du jet central. En conséquence, la distance effective de chauffage de la flamme peut être allongée, et on peut reculer le bloc collecteur qui supporte les têtes de gaz de préchauffage à une bonne distance de retrait par rapport à la pièce à travailler de manière à éviter les dommages dus aux projections de scories.

LandOfFree

Say what you really think

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

Rating

Scarfing method and apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Scarfing method and apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Scarfing method and apparatus will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-2026049

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