Deposition burner and method for the manufacture thereof, use of the deposition burner and method for the production of a quartz glass body by using the deposition burner
US8245543B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 21, 2008 |
| Grant date | Aug 21, 2012 |
| Priority date | — |
| Expiry date | Oct 13, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03B2207/52
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
To provide a method for the inexpensive manufacture of a deposition burner with small manufacturing tolerances for use in the synthesis of quartz glass, and wherein moreover, when the deposition burner is used as intended, the risk of contamination of the quartz glass to be produced is low, the invention suggests the following method steps: (a) providing a start cylinder of quartz glass (40) which is mechanically provided with longitudinal bores (46, 47); (b) elongating the start cylinder with formation of a burner strand (42), the longitudinal bores being shaped as elongated channels extending in parallel with one another; (c) cutting the burner strand into pieces in the form of cylindrical quartz glass blocks (43), each being provided with passage lines extending in parallel with a central axis of the quartz glass block; and (d) manufacturing the deposition burner by using a respective one of such quartz glass blocks as burner head which has a proximal end and a distal end, the passage lines serving the supply of process media from the distal to the proximal, burner head end.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.