ʻO ke kumu maʻamau oferrochrome：

Medium, low and micro carbonferrochromehana ʻia me ka silicochrome alloy, chromite a me ka lime e like me nā mea maka.Hoʻomaʻemaʻeʻia a hoʻomaʻemaʻeʻia e ka umu uila o 1500 ~ 6000 kV A a hoʻohanaʻia e ke kapuahi kapuahi kiʻekiʻe (CaO / SiO2 he 1.6 ~ 1.8).micro carbon ferrochromeHoʻohana ʻia ʻelua kapuahi uila i ka hana ʻana, hoʻokahi no ka hoʻoheheʻe ʻana i ka silika chrome alloy a ʻo kekahi no ka hoʻoheheʻe ʻana i ka slag i haku ʻia me ka chrome ore a me ka lime. : (1) Ma hope o ka hoʻokomo ʻia ʻana o ka slag mai ka umu palaka i loko o ka pahu mua, ua hoʻohui ʻia ka silicon chromium alloy i hoʻomaʻamaʻa mua ʻia i loko o ka pahu ʻē aʻe.Ma muli o ka nui o ka nui o ka oxidizing agent i ka slag a me ka desiliconization lawa, micro-carbon ferrochrome i loaʻa ma lalo o 0.8% silicon a me ka haʻahaʻa e like me 0.02% carbon hiki ke loaʻa.② Ma hope o ka slag (loaʻa ma kahi o 15% Cr2O3) ma hope. Hoʻoneʻe ʻia ka hopena o ka pahu mua i ka pahu lua, ua hoʻomehana ʻia ka silicon chromium alloy (loaʻa ka 45% silicon) i hoʻomākaukau ʻia i loko o ka umu uila silicon chromium i hoʻomehana ʻia i loko o ka slag.Ma hope o ka pane ʻana, loaʻa ka silicon chromium alloy (loaʻa ma kahi o 25% silicon) i hoʻomaʻemaʻe mua ʻia a hoʻohui ʻia i loko o ka pahu mua no ka desilication hou.Hiki ke hoʻolei ʻia ka slag i emi iho ma mua o 2 ~ 3% Cr2O3.

Hoʻomaʻemaʻe ʻia ka ferrochrome medium a haʻahaʻa e ka puhi oxygen.Hoʻohana ʻia ka wai kalapona ferrochrome e like me ka mea maka.Hoʻohui ʻia kahi lime lime a me ka fluorite i ka wai i hoʻoheheʻe ʻia e hana i ka slag i ka wā o ka puhi ʻana, a hoʻohui ʻia ka silicon chromium alloy a i ʻole ferrosilicate ma mua o ka unuhi ʻana i ka hao e hoʻihoʻi hou i ka chromium i ka slag. .

Vacuum solid-state decarburization kaʻina hana i hoʻomaʻemaʻe ʻia, me ka wili maikaʻi ʻana o ke kalapona ferrochrome kiʻekiʻe e like me ka mea maka, ka wili maikaʻi ʻana o ke kalapona ferrochrome kiʻekiʻe, kahi ʻāpana o ka oxidizing roasting e like me ka oxidant a me ke aniani wai a i ʻole nā ​​​​mea hoʻopili ʻē aʻe, ka pōleʻa kaomi, ma hope o ka maloʻo haʻahaʻa haʻahaʻa, ka ʻO ke kaʻa kaʻa kaʻa kapuahi umu, ʻo ka ʻenekema ʻeleu he 0.5 ~ 10 mm hg, ka mahana o 1300 ~ 1400 ℃ hoʻemi ʻana i ka wela ma lalo o 35 ~ 50 mau hola, Microcarbon ferrochrome i loaʻa ka liʻiliʻi ma mua o 0.03% carbon a i ʻole ka liʻiliʻi ma mua o 0.01% carbon hiki ke loaʻa.

ʻO ka laʻana hōʻoia nui: inā ʻoi aku ka liʻiliʻi o ka pūʻulu ma mua o 10 mau tons, ʻaʻole i emi iho ma mua o 10 mau laʻana e pono e lawe ʻia mai nā ʻāpana like ʻole; ʻO nā ʻāpana like ʻole; Inā ʻoi aku ka nui o ka pūʻulu ma mua o 30 tons, ʻaʻole e emi iho ma mua o 30 mau laʻana e pono e lawe ʻia mai nā ʻāpana like ʻole. Pono e like ke kaupaona ʻana o kēlā me kēia kaumaha, ʻaʻole emi kona lumpiness ma mua o 20 * 20mm. ʻAʻole e emi ka nui o ka laʻana. ma mua o 0.03% o ka hailona.ʻO nā mea hoʻohālike a pau i laweʻia e haʻihaʻiʻia i lalo o 10mm a hoʻokaʻawaleʻia i ka 1-2kg.Ma hope o ka hui ʻana, pono e māhele ʻia i ʻelua mau ʻāpana like, hoʻokahi no ka hoʻomākaukau ʻana i ka laʻana a ʻo kekahi no ka mālama ʻana.

Ma lalo o nā kūlana maʻamau, ʻo ia ka nānā ʻana i ka ʻike o ka chromium, a ukali ʻia e ka ʻike o ka carbon assay, chromium ma lalo o nā kūlana maʻamau i 60% ± 0.5.