A slab scarfing apparatus comprises: an upper nozzle unit having an upper surface nozzle for scarfing an edge portion of the upper surface of a slab and having a first side nozzle scarfing an upper edge portion of the side surface of the slab and moving together with the upper surface nozzle; a lower nozzle unit having a lower nozzle for scarfing an edge portion of the lower surface of the slab and having a second side nozzle scarfing a lower edge portion of the side surface of the slab and moving together with the lower nozzle; and a moving apparatus for moving the upper nozzle unit and the lower nozzle unit to allow the upper nozzle unit and the lower nozzle unit to be adjacent to or to be spaced apart from an edge portion of the slab. A method of controlling the apparatus is provided.

Provided is a torch including a body having a first portion and a second portion angled relative to the first portion, a control knob at a top of the second portion for adjusting a flow of fuel through the torch, a trigger at a top of the first portion that is movable from an off position to an on position to at actuate an igniter, and a burn tube extending from an end of the second portion away from the first and second portions.

A device to unclog orifices in a workpiece is provided. The device includes a lower portion configured to receive the workpiece and an upper portion configured to secure the workpiece to the lower portion. The upper portion includes a tube configured to receive a piston. An unclogging material is placed in the tube portion, and the piston forces the unclogging material through the orifices.

A device to unclog orifices in a workpiece is provided. The device includes a lower portion configured to receive the workpiece and an upper portion configured to secure the workpiece to the lower portion. The upper portion includes a tube configured to receive a piston. An unclogging material is placed in the tube portion, and the piston forces the unclogging material through the orifices.

A method of cutting openings in flat, concave, convex, and converging surfaces, in which the geometry of the outline of the element to be welded into the workpiece is measured, while subsequently an electronic control unit of the device uses the measurement data to plot the path of the cutting tool, and the IMCM device is placed onto the work surface, where the geometry of the work surface is measured using a scanning system, cutting parameters are automatically entered into the control unit based on the measurement results, the surface is heated and cut along the selected path, the cut-out part of the surface is removed, and the edges of the cut-out opening are grinded.

A combustible gas that enables reducing an amount of CO.sub.2 generated at a time of cutting an object is provided. A combustible gas for use as a combustion gas for gas cutting of an object contains ethylene at a concentration of greater than 0% by volume and less than 18% by volume, with the remainder being hydrogen and unavoidable impurities. The combustible gas is preferably encapsulated in a container, and a pressure in the container at 35? C. is preferably 1 MPa or more and 50 MPa or less. A concentration of the unavoidable impurities is preferably 1.0% by volume or less. The object is preferably steel.

A system for performing exothermic operations or oxygen delivery uses a rod and handle configuration to create a flowpath of oxygen. The rod includes cables having stainless steel fibers that burn using the oxygen within a hollow center area. While burning, the rod cuts through material. A sheath covers the covers to contain the gases and prevent unraveling of the cables. The handle attaches to the rod and provides control of the flow of oxygen to the rod. A manifold fixing in place bottles of oxygen connects to the handle and can be fixed to provide different mixtures from different bottles. The rod is disconnected when needed to fix a mask thereto for delivering breathable oxygen to a patient.

A system for performing exothermic operations or oxygen delivery uses a rod and handle configuration to create a flowpath of oxygen. The rod includes cables having stainless steel fibers that burn using the oxygen within a hollow center area. While burning, the rod cuts through material. A sheath covers the covers to contain the gases and prevent unraveling of the cables. The handle attaches to the rod and provides control of the flow of oxygen to the rod. A manifold fixing in place bottles of oxygen connects to the handle and can be fixed to provide different mixtures from different bottles. The rod is disconnected when needed to fix a mask thereto for delivering breathable oxygen to a patient.

Shaping systems and methods suitable for cutting a material, and deburring devices for performing a deburring operation on an edge of the material. Such deburring devices include a manifold having at least first, second, and third nozzles having first, second, and third axes on different first, second, and third planes, respectively. The first, second, and third nozzles are adapted to project first, second, and third gas streams therefrom in the first, second, and third planes axes. A mechanism is provided for orienting the manifold to project the first, second, and third gas streams at the edge of the material.

An automated oxy-fuel thermal processing system including an oxy-fuel torch, an automated machine tool operatively coupled to the torch for moving the torch relative to a work piece, and a circuit including a voltage source or a current electrically connected to the torch and configured to be electrically connected to the work piece. The automated oxy-fuel thermal processing system may further include a processor that is operatively connected to the torch, the automated machine tool, the circuit, and the voltage source or current source, wherein the processor is configured to control the operation of the torch, the automated machine tool and the voltage source or current source, and to monitor a current or voltage in the circuit in a predefined manner.