| 摘要 |
A known method for producing a cylindrical body uses a precipitation assembly ( 5 ) consisting of several precipitators ( 4 ), to which a parent substance is fed via medium supply lines ( 9 ), whereby the precipitation assembly ( 5 ) completes a closed trajectory ( 6 ) according to a predetermined displacement course, said trajectory comprising at least one precipitation path ( 8 ) that runs along the longitudinal axis ( 2 ) of the support. The aim of the invention is to provide an economical, reproducible, failsafe method based on said known procedure, which enables in particular the production of soot layers ( 3 ) on a support ( 1 ) at a high precipitation rate and nevertheless a high degree of uniformity. To achieve this, the displacement course ( 6 ) comprises a first loop ( 7 a , 8 ) and a second loop ( 7 b , 8 ), whereby the completion of the first loop ( 7 a , 8 ) causes a right-hand torsion in the medium supply lines ( 9 ) and the completion of the second loop ( 7 b , 8 ) causes a left-hand torsion in said lines ( 9 ).
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