| 摘要 |
A web is formed between two wire loops ( 13, 14 ), in a wire section of a paper or board machine, in connection with which dewatering elements ( 12, 17, 15, 28 ) are placed and in which water is drained from a stock suspension from between the two wires ( 13, 14 ). In the region of a twin-wire zone, a suction roll ( 15 ) is placed within one wire loop and a suction box ( 16 ) having a curved surface is situated in opposed relationship with the suction roll ( 15 ) on the wire loop. After the suction box ( 16 ), the web is guided, due to the effect of a vacuum of the suction roll ( 15 ), forwards on the surface of the wire loop of the suction roll ( 15 ).
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