Abstract: A nozzle (4,5) for an injection lance, which is intended for injecting primarily powderous material into a metal bath, such as a steel bath, freely in a bath or in a casting nozzle, and which comprises preferably an outer, preferably ceramic pipe (1) and an inner, preferably metallic pipe (2), in which said material is intended, usually pneumatically, to be transported all the way to the tip (3) of the lance, at which tip the powderous material is intended to pass out through at least one nozzle (4,5) comprising a through passageway (6) for said material.The nozzle according to the invention is especially characterized in that the nozzle (4,5) is made of a material with high wear resistance and with a fusion point, which is higher than the fusion point of the material, into which the injection is to be made, for example steel.

Abstract: A casting nozzle (1) at metallurgical processes, through which nozzle a metal bath is intended to flow out, where gas, such as argon or nitrogen gas or a mixture of gas and powderous material, is intended by means of an injection lance or the like to be injected into the bath in connection to the nozzle.The casting nozzle according to the invention is especially characterized, in that the through hole (2) of the nozzle (1) has substantially conic shape, with a cross-sectional area increasing in the intended flow direction.

Abstract: A method and apparatus for casting molten metal into ingots or bars. The molten metal is first disintegrated (fragmented) by a gas, via a lance jet, the gas including a powdered material of the same material as the molten metal and/or another material, to obtain a mixture of disintegrated molten metal and powder which is collected in a collector. The molten metal from a container pressurized by the gas is caused to flow out of an outlet in the container, and the gas containing the powder of pre-determined quantity and composition is caused to flow out from the mouth of a lance-shaped tube, the outlet end of which is surrounded by molten metal and is situated in or at the container outlet at which stage the molten metal is disintegrated and mixed with the gas contained powder and the resultant disintegrated molten metal mixed with powder grains is collected as an ingot or bar in the collector (mould).