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قالبهای ریختهگری فولادهای هادفیلد ، دقیقا مانند کوره و پاتیل ، در معرض واکنش با اکسیدهایمنگنز هستند . به منظور جلوگیری از این پدیده ، بسیاری از تولید کنندگان از ماسهاولیوین ( Olivine sand ) برای ساخت قالبهایخود استفاده میکنند . ماسه اولیوین ماهیت بنیادی دارد و با فولادهای مقاوم بهسایش واکنش نمیدهد . برای ساخت قالبها میتوان از ماسه سیلیس هم اس... See more
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