A Potting of cast iron

___A shief metallurg of «ТехноИнжениринг» company write: 
___A Potting of cast iron in scrap ore process must be made at optimum moment of time. Under early potting possible solidifying of baths, reactions will go faded. Under late potting on overheated slag dangerous blast to figurative reactions with surge melt from stove. The Suitable moment for begin potting of cast iron can serve the appearance moderate amount ferrous slag and settling of scrap to account of its softening and melting. Potting it is necessary to produce quickly, for 30 — 60 minutes (several scoops). Herewith, the whole mass of cast iron interacts with shicht, intensive melts and opens scrap, acidifies carbon of cast iron, a part of slag to drift results from stove through backfilling threshold worker of the windows. With it delete silica, a part of sulphur and particularly phosphorus, go up hereto moment in slag.
___A Melting in large open-hearth furnaces lasts during several hours and ends the assimilation in slag gumboil (the limestone or lime) and full dissolution of scrap. To moment of the melting maining raise the additive of lime and if required delute the slag by bauxite or shamot split. For period of the melting completely acidifies silicon of shicht, manganese and big part of carbon. For spee’dup of the oxidation of the admixtures and process of the melting, after completion of the potting of cast iron, bath reasonable to blow out the oxygen or compressed by air at water coolled furms through code stove.
___A Period of boilings in open-hearth furnace usually begin with additives on bath of iron ore (waxing) or blowing by its oxygen or compressed by air. Carbon begins intensive to acidify, slag spumed (in consequence of reduction or unhooking the presenting fuel). Then produce of swinging slag, which has more high maining, than «running down» slag, and removes from stove quite a numbers phosphorus and sulphurs. The New slag raised of maining direct the additive fresh burnt lime.
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P.S.
___Уважаемый читатель!!! Уверен, что эта интересная информация будет очень полезна для Вас, избавив от множества проблем в повседневной жизни. В знак благодарности, прошу Вас поощрить скромного автора незначительной суммой денег.
___Конечно, Вы можете этого и не делать. В то же время подмечено, что в жизни есть баланс. Если сделать кому-то добро, то оно вернётся к Вам через определённое время в несколько большем количестве. А если сделать человеку зло, то оно возвращается в очень скором времени и значительно большим.
___Предлагаю сделать свой посильный вклад (сумму можно менять):
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