发明名称 |
Grooved forming roll |
摘要 |
A grooved forming roll in a paper machine has a rotably supported shell ( 20 ) with circular openings ( 21 ) arranged to be open at least on the outer surface of the shell ( 20 ). Each opening ( 21 ) has a circular groove is formed on the outer surface arranged concentrically relative to the opening ( 21 ). A portion of the formed circular openings ( 22 ) extends to each opening ( 21 ) from each adjacent opening ( 21 ). The outer radius (r) of the circular groove ( 22 ) is arranged such that the number of necks ( 24 ), delimited by the adjacent openings ( 21 ) and their circular grooves ( 22 ) on the shell outer surface within the area of one circular groove ( 22 ), is greater than the number of the adjacent openings ( 21 ) of the corresponding opening ( 21 ).
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申请公布号 |
US2005176566(A1) |
申请公布日期 |
2005.08.11 |
申请号 |
US20050054120 |
申请日期 |
2005.02.09 |
申请人 |
VESTOLA JUHANI;KARTTUNEN HEIKKI |
发明人 |
VESTOLA JUHANI;KARTTUNEN HEIKKI |
分类号 |
D21F1/40;D21F3/10;(IPC1-7):B21B1/40;E01C19/23 |
主分类号 |
D21F1/40 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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