Method of producing laminar, trimetal belts and trimetal alloy

摘要

method of manufacturing tape as trimetalowych alloy based on silver, containing silver, copper and zinc and unavoidable impurities, characterised by the fact that silver alloy and copper wytapia in bezrdzeniowym induction furnace crucible equipped with ceramic or szamotowo - gr afitowy, atmospheric air with the addition of at least half of the flux.borax or boric acid favourably under cover from 5 to 50 mm layer of charcoal until the total meltdown input mixes a graphite by at least 1 minute, and the rest of the flux, then below the surface of the bath is zinc and again mixed with s it until exit pollutantsi produced a bath metal urinating at 800 - 900u00b0c kiln line horizontal continuous casting round ingots or to temp.850 - 950u00b0c speed casting of 150 - 250 mm / minute, where a mold is then squeezed in the form of pu0142askownika who underwent plastic processing and heat treatment shall be operational until the thickness of the tape 6 - 9 mm, the processes of grinding, cleaning, and what the on the press platerowaniu less twice the vertical at the time of not less than 1 minute.to achieve reduction in thickness after platerowaniu from 20 to 60%, preferably with an emphasis of 500 - 1000 tonnes during the ip, 100 - 200 seconds, and so received packets are dyfuzyjnemu wyu017carzaniu furnace temperature conduction in 500 - 650u00b0c during 3 - 5 hours, preferably in a protective atmosphere of nitrogen or argon.and then hot rolling process for all the items concerned with zgniotem 30 - 70% to achieve the dimension of 5 - 7 mm. the subject of the invention is also a tri metal alloy, containing by weight 36u00f740% silver, 25u00f734% copper, 20 - 26% zinc and unavoidable impurities.