发明授权
US4780183A Method of using a dual compartment vacufoil unit to eliminate secondary
headbox chatter
失效
使用双室真空单元以消除二次流浆箱颤动的方法
- 专利标题: Method of using a dual compartment vacufoil unit to eliminate secondary headbox chatter
- 专利标题(中): 使用双室真空单元以消除二次流浆箱颤动的方法
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申请号: US116402申请日: 1987-11-03
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公开(公告)号: US4780183A公开(公告)日: 1988-10-25
- 发明人: Roy Jones
- 申请人: Roy Jones
- 申请人地址: NC Wake Forest
- 专利权人: Huyck Corporation
- 当前专利权人: Huyck Corporation
- 当前专利权人地址: NC Wake Forest
- 主分类号: D21F1/52
- IPC分类号: D21F1/52 ; D21F11/04 ; D21F1/48
摘要:
A dual compartment vacufoil unit for making linerboard grade or other multi-layer paper comprising a dual compartment vacufoil and a forming blade and a method of using same. The dual compartment vacufoil unit is positioned beneath the forming blade, with an upstream compartment located on the upstream portion of the forming blade evacuating air through primary paper sheet prior to application of the secondary discharge, and a downstream compartment located on the downsteam portion of the forming blade. The forming blade is positioned directly beneath the secondary pulp discharge.
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