Method for producing an integral bond between components of quartz glass and heating burner suited therefor
AssigneeHeraeus Quarzglas GmbH & Co. KG
InventorOliver Ganz
Life of this patent
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Abstract
Known heating burners for producing a welded joint between components of quartz glass include a burner head in which at least one burner nozzle is formed, a burner-head cooling system for the temperature control of the burner head and a supply line connected to the burner nozzle for a fuel gas. Starting from this, to modify a heating burner in such a way that impurities in the weld seam between quartz-glass components to be connected are largely avoided, it is suggested that the burner head should include a base body of silver or of a silver-based alloy.
Claims5
A method for producing an integral bond between connection surfaces of components of quartz glass, comprising:
- heating and softening the connection surfaces by way of at least one heating burner;
- pressing the connection surfaces against each other to form a component assembly having a weld seam;
- and
- cooling the component assembly,
- wherein the heating burner has a burner head, said burner head comprises a base body of silver or of a silver-based alloy, in said base body at least one burner nozzle is designed as a tubular insertion part of silver or of a silver-based alloy, that is inserted into a through hole in the base body, said burner nozzle is connected to a supply line for a fuel gas or a fuel gas mixture, and wherein said base body is provided for temperature control with a burner-head cooling system, wherein in said burner-head cooling system two cooling water pipes for the cooling water supply and cooling water discharge are connected to each other via a fluidically continuous cooling channel.
Dependencies are inferred from the claim text.