发明授权
US5932069A Paper machine roll with heated ends in a soft calender or supercalender
and method for calendering a web
失效
带有加热端的造纸机辊以软压光机或超级砑光机和压延网的方法
- 专利标题: Paper machine roll with heated ends in a soft calender or supercalender and method for calendering a web
- 专利标题(中): 带有加热端的造纸机辊以软压光机或超级砑光机和压延网的方法
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申请号: US822010申请日: 1997-03-24
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公开(公告)号: US5932069A公开(公告)日: 1999-08-03
- 发明人: Harri Kuosa , Markku Kyytsonen , Rob Stapels , Vesa Ijas , Jouko Meronen , Risto Vainio , Markku Kirvesmaki
- 申请人: Harri Kuosa , Markku Kyytsonen , Rob Stapels , Vesa Ijas , Jouko Meronen , Risto Vainio , Markku Kirvesmaki
- 申请人地址: FIX Helsinki
- 专利权人: Valmet Corporation
- 当前专利权人: Valmet Corporation
- 当前专利权人地址: FIX Helsinki
- 优先权: FIX960180 19960322
- 主分类号: D21G1/02
- IPC分类号: D21G1/02
摘要:
A paper machine roll, in particular for a soft calender or supercalender, which includes a metal frame, roll ends, and shafts. The frame is coated with a polymer coating over at least a middle area or central region thereof while lateral regions may optionally remain uncoated. In order to equalize a difference in temperature between the roll ends and the optionally non-coated lateral regions of the metal frame, on one hand, and the coated central region area of the roll, on the other hand, an arrangement for equalizing the difference in temperature is provided by heating the roll ends and the optionally non-coated lateral regions of the metal frame.
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