Digital Hydraulics

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Other Title
  • デジタル油圧制御
  • デジタル ユアツ セイギョ

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Description

Valmet developed digital hydraulics for nip control based on new groundbreaking control technology in cooperation with universities. With digital hydraulics the energy saving is significant compared to conventional hydraulics. The key principle in digital hydraulics is to use parallel―connected two―way on／off valves to achieve digital flow control. With a sufficient number of valves and intelligent control algorithms, it is possible to achieve good controllability with simple and low―cost on／off valves.<BR>This paper introduces the outline of basic principle and the example of calender nip operation result with digital hydraulics. And, the applications on sizer and winder are also described.

Journal

  • JAPAN TAPPI JOURNAL

    JAPAN TAPPI JOURNAL 69 (3), 245-251, 2015

    JAPAN TECHNICAL ASSOCIATION OF THE PULP AND PAPER INDUSTRY

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