Nozzle for cutting steel workpieces and workpieces made of iron alloys
AssigneeGesellschaft für Autogenmaschinen und- geräte mbH
InventorHorst Lotz
Life of this patent
Estimating the term…
Abstract
A nozzle for cutting steel workpieces and workpieces made of iron alloys comprising a nozzle body with an axial hole for the outflow of cutting oxygen and a cylindrical free space at the outlet surface of the nozzle forming the cutting flame. Furthermore, the nozzle has a plurality of heating gas holes and a plurality of heating oxygen holes that are arranged in an external or internal concentric circle around the axial hole. In addition, a number of cooling oxygen holes arranged in at least one concentric circle around the axial hole are provided that run from the inlet side of the nozzle body to the outlet surface of the nozzle and open outside of the pot-shaped, cylindrical free space.
Claims9
Nozzle (1) for cutting steel workpieces and workpieces made of iron alloys comprising a nozzle body (2) with
- an axial hole for the cutting oxygen (5) and a pot-shaped, cylindrical free space (7) at the outlet surface (8) of the nozzle (1) forming the cutting flame (10), and
- a plurality of heating oxygen holes (11) and heating gas holes (13) that are arranged in concentric circles around the axial hole (5),
- characterized in that a number of cooling oxygen holes (15) arranged in at least one concentric circle around the axial hole (5) are additionally provided that run from the inlet side (6) of the nozzle body (2) to the outlet surface (8) of the nozzle (1) and open outside of the pot-shaped, cylindrical free space (7), and
- that a number of slanted holes (12) are provided that are tilted outwards away from the longitudinal axis (19) of the nozzle (1) and connect the heating gas supply with the heating oxygen holes (11), and
- that a number of slanted holes (14) are provided that are tilted inwards towards the longitudinal axis (19) of the nozzle (1) and connect the outside with the inside of the pot-shaped, cylindrical free space (7).
Dependencies are inferred from the claim text.