| met. |
chromium iron; ferrochrome; ferrochromium (【技】铬和铁组成的铁铬合金，是炼钢生产中的重要合金添加剂。按其含碳量不同，铬铁分为高碳铬铁、中碳铬铁、低碳铬铁和微碳铬铁四种。: ① When required as a strengthening and hardening addition to cast iron or steel, the chromium is provided as ferro-chromium, containing 70 per cent chromium, 4 to 6 per cent carbon and the rest iron. 当铬需要以强化剂和硬化剂加人铸铁或钢时，它是以含有70%的铬、4% ~6%的碳、余为铁的铬铁形式供货的。② Low-grade chromite cannot be converted to low-or medium-carbon ferrochromium via the conventional silicothermic ore/lime reduction at economically feasible conditions. 低品位铬铁矿不能在经济可行的条件下通过常规的硅热矿石/石灰还原法冶炼成低碳或中碳铬铁。) |
