CAJ | 학술논문

高碳铬铁无渣脱碳法可避免有毒铬渣的排放,利用微波场可快速加热粉状物料的特性,在高碳铬铁粉中配加一定比例的碳酸钙粉,可实现高碳铬铁粉快速固相脱碳.实验结果表明：配加一定比例的碳酸钙粉,不会影响内配碳酸钙高碳铬铁粉混合物料的微波加热特性；提高混合物料的脱碳摩尔比、微波加热温度和保温时间,有利于高碳铬铁粉的深度脱碳,但相应加剧脱碳铬铁粉的氧化程度.合适的固相脱碳条件为：脱碳摩尔比1：1.0~1：1.4,微波加热温度1100℃,保温脱碳时间60 min.在上述条件下可使碳质量分数为8.16%的高碳铬铁粉脱碳至3.91%~1.71%,脱碳率为52.08%~79.04%.
고탄락철무사탈탄법가피면유독락사적배방,이용미파장가쾌속가열분상물료적특성,재고탄락철분중배가일정비례적탄산개분,가실현고탄락철분쾌속고상탈탄.실험결과표명：배가일정비례적탄산개분,불회영향내배탄산개고탄락철분혼합물료적미파가열특성；제고혼합물료적탈탄마이비、미파가열온도화보온시간,유리우고탄락철분적심도탈탄,단상응가극탈탄락철분적양화정도.합괄적고상탈탄조건위：탈탄마이비1：1.0~1：1.4,미파가열온도1100℃,보온탈탄시간60 min.재상술조건하가사탄질량분수위8.16%적고탄락철분탈탄지3.91%~1.71%,탈탄솔위52.08%~79.04%.
Non-slag decarburization of high-carbon ferrochrome can avoid toxic chromium slag emissions. Solid phase decarburiza-tion of high-carbon ferrochrome powder containing a certain proportion of calcium carbonate powder can be achieved using the character-istics of rapid heating powder materials in a microwave field. Experimental results show that adding a certain proportion of calcium carbonate powder does not affect the microwave heating characteristics of high-carbon ferrochrome powder. Deep decarburization of high-carbon ferrochrome powder is realized at a higher decarburization molar ratio of the mixed materials, a higher decarburization temperature, and a longer decarburization time, but the oxidation degree of decarburized ferrochrome powder is also increased accord-ingly. Under the suitable solid-phase decarburization conditions of the carburization molar ratio of 1:1. 0 -1:1. 4, the microwave heating temperature of 1100℃ and the decarburization time of 60 min, the mass content of carbon in the decarburized materials is 3. 91% to 1. 71%, and the decarburization rate is 52. 08% to 79. 04%.