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Information × Registration Number 0309U007236, 0108U006763 , R & D reports Title Development of duplex process for smelting of high-alloy steels used for production of furnace valves operating at high temperatures. popup.stage_title Розробка технології виплавлення дуплекс-процессом високолегованих марок сталей, що використовуються для виготовлення пічної закриваючої арматури, яка працює при високих температурах. Head Degtyarev A.V., Registration Date 16-04-2009 Organization State Enterprise "Ukrainian Special Steels Institute" popup.description2 Duplex process for production of ЭИ437 (ХН77ТЮР) alloy has been developed, including the following:- smelting of composite electrodes in ULVAC VIM furnace under vacuum of 1x10-1 mm of mercury;- machining of composite electrodes;- manufacture of a single consumable electrode by TIG welding of several composite electrodes;- remelting of the consumable electrode in U-250 VAR furnace under vacuum of 1x10-3 mm of mercury.The alloy obtained is used for manufacture of furnace valves.56355635 Product Description popup.authors popup.nrat_date 2020-04-02 Close