Method for testing hydraulic state of dynamic roll gaps through static pressure maintaining
A dynamic, roll-gap technology used in length measuring devices, metal processing equipment, metal rolling, etc.
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[0018] In order to ensure the stability of the finishing rolling reduction system, it is crucial to ensure stable production and avoid steel scrap, etc., and the present invention is proposed.
[0019] The finishing hydraulic pressing system is usually equipped with two oil supply systems, which are called circuits respectively. The common part of the two circuits is equipped with a safety unloading valve to protect the mechanical device from damage when the system pressure is abnormal. Accumulators are installed on the top of both sides. F1-F3 racks share one system, and F4-F7 share one system. Accumulator groups are respectively installed. The function of accumulators is to suppress system pressure fluctuations. After a large amount of analysis of the roll gap data after scrap steel, it was found that the abnormal roll gap caused by the out-of-synchronization of the oil cylinders on both sides when the large adjustment amount is large is the important reason for the scrap ste...
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