Liquid-phase modifier and method for preparing high-chromium iron

The invention belongs to the technical field of metallurgy, and provides a liquid-phase modifier which comprises chemical element components in mass ratio: 0.10-0.25 of Al, 0.10-0.40 of Ti, 0.20-0.50 of V, 0.03-0.10 of B, 0.005-0.013 of Zn, 0.08-0.40 of Cu and 0.10-0.20 of rare earth element; the invention further provides a method for preparing high-chromium iron; the method comprises preparation steps of furnace pretreatment, pouring and heat treatment. Through the technical scheme, the problem in the prior art that high-chromium iron is lower in wear resistance is solved. 本发明属于冶金技术领域，提出了种液相变质剂，由以下质量配比的化学元素成分组成：Al：0.10～0.25，Ti：0.10～0.40，V：0.20～0.50，B：0.03～0.10，Zn：0.005～0.013，Cu：0.08～0.40，稀土元素：0.10～0.20。还提出了种制备高铬铸铁的制备方法，包括炉前处理、浇注、热处理的制备步骤。通过上述技术方案，解决了现有技术中高铬铸铁耐磨性较低的问题。