摘要:
L'invention concerne un procédé et un dispositif d'oxycoupage de pièces d'acier, selon lesquels on positionne un organe de coupe (5) sur une face supérieure de la pièce à couper, et des organes d'ébavurage (10) et de pulvérisation (11) sous la pièce à couper, ces derniers organes étant portés par une lame de support qui passe dans la saignée d'oxycoupage. Conformément à l'invention, on projette, directement dans la saignée d'oxycoupage (1.3) et dans la partie de celle-ci qui est entre le front de saignée et le support en forme de lame des organes d'ébavurage et de pulvérisation, au moins un jet de fluide sous pression (22) formant barrage de protection contre les projections de particules pour ledit support en forme de lame lors de la progression de celui-ci dans la saignée d'oxycoupage (1.3). Ainsi, on supprime le risque d'obstacle pour la progression du support en forme de lame dans la saignée d'oxycoupage, ce qui autorise des vitesses d'oxycoupage très élevées.
摘要:
The invention relates to a device for oxyacetylene-cutting pieces of steel. The cutting (5) and deburring mechanisms are positioned in such a way that the oxyacetylene cutting jet (6) acts on the top surface (1.1) of the piece (1) in an essentially vertical direction while the deburring jet (12) acts on the bottom surface (1.2) of said piece in an oblique direction, remaining pointed towards the exit point (14) of the oxyacetylene cutting jet (6). The simultaneous cutting and deburring is made possible by the synchronous horizontal displacement of the cutting (5) and deburring (10) mechanisms. A spraying mechanism (11) is also provided for spraying fluid in the direction of the particles in fusion during the cutting process in order to reduce emissions of fumes.
摘要:
The invention concerns a method and a device for high speed oxyacetylene cutting of thick steel parts. The invention is characterised in that it consists in: synchronously moving a oxyacetylene cutting torch (30) maintained at a predetermined height above the part to be cut (1), and a kerf cutting torch (20) comprising at least a blade-type nozzle (25), which passes inside the very oxyacetylene cut (1.3). The blade-type nozzle (25) emits through its cutting edge at least a heating and/or gas cutting fluid jets striking hard the kerf front combining with the gas cutting fluid jets emitted by the oxyacetylene torch (30) to form a kerf front (1.4) having a broken line profile.
摘要:
The invention relates to a device for oxyacetylene-cutting pieces of steel. The cutting (5) and deburring mechanisms are positioned in such a way that the oxyacetylene cutting jet (6) acts on the top surface (1.1) of the piece (1) in an essentially vertical direction while the deburring jet (12) acts on the bottom surface (1.2) of said piece in an oblique direction, remaining pointed towards the exit point (14) of the oxyacetylene cutting jet (6). The simultaneous cutting and deburring is made possible by the synchronous horizontal displacement of the cutting (5) and deburring (10) mechanisms. A spraying mechanism (11) is also provided for spraying fluid in the direction of the particles in fusion during the cutting process in order to reduce emissions of fumes.