B - Operations – Transporting – 23 – K
Patent
B - Operations, Transporting
23
K
B23K 7/06 (2006.01) B23K 7/08 (2006.01) F23D 14/56 (2006.01)
Patent
CA 2101822
A block assembly for a thermochemical scarfing apparatus which allows a greater diagonal standoff distance from the metal workpiece during preheating. The block assembly comprises a base member and an extension releasably joined to the base member, and the base member and extension include an internal network of gas distribution lines for separately delivering both oxygen and fuel gas to each of a plurality of discharge openings which are disposed in a longitudinal row along the front face of the extension. A nozzle insert is releasably mounted in each discharge opening, such that during preheating, the oxygen may be discharged from each discharge opening as a central high velocity stream and the fuel gas may be discharged as a concentric stream which coaxially surrounds the central stream, and so that the momentum of the central stream is maintained. The effective flame heating distance thereby may be extended during preheating, and the block assembly may be moved back from the workpiece a significant standoff distance so as to avoid damage from dislodged molten metal slag.
L'invention porte sur un bâti pour un appareil à décriquage thermochimique qui permet de placer la pièce métallique à une plus grande distance diagonale du bâti pendant le préchauffage. Le bâti comporte une base et un prolongement amovible fixé à ladite base. La base et son prolongement comportent un réseau interne de distribution de gaz qui alimente séparément en oxygène et en gaz de combustion plusieurs trous de décharge disposés en rangée le long de la face avant du prolongement. Dans chacun des trous de décharge est montée une buse amovible, de sorte que pendant le préchauffage, l'oxygène peut être évacué par lesdits trous de décharge sous la forme d'un jet central à grande vitesse, et le gaz de combustion peut être évacué sous la forme d'un jet concentrique entourant le jet central, maintenant l'élan du jet central. Il est donc possible d'accroître la distance de chauffage effectif de la flamme pendant le préchauffage, et d'éloigner de façon importante le bâti de la pièce, de façon à prévenir les dommages causés par le décollement de scories métalliques en fusion.
Dawson John G.
Gusky Frank J.
Showalter Michael S.
Esab Group Inc. (the)
Sim & Mcburney
LandOfFree
Block assembly for use in scarfing 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 Block assembly for use in scarfing apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Block assembly for use in scarfing apparatus will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1422699