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

Paper machine roll with heated ends in a soft calender or supercalender
and method for calendering a web
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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