The experiments were conducted on the changes of sintering performance of one kind of ultra fine-sized iron concentrate with or without being processed by high
At the beginning of 1990s,Shougang blast furnaces(BFs)No.2,No.4,No.3 and No.1 were rebuilt sequently for new technological modernization in succession.The campa
Steel samples with size of 10mm×10mm×5mm were cut down from a hot-rolled Mn-steel microalloyed by Ti,Cr and Nb and produced by compact strip production(CSP)te
Effects of annealing time on microstructure of cold-rolled niobium-titanium bearing micro-alloyed steel strips were investigated by optical microscopy,scanning
Most of BN was precipitated around the spherical MnS and formed the compound of MnS and BN during the isothermal treatment at 850℃after austenizing at 950-1050