버스차량용 냉연강판의 상자소둔 열처리 후 기계적특성 연구

Batch annealing is used in the steel industry as an important step for heat-treatment. Its processes- a large, stationary mass of steel is subjected to a long heat-treatment cycle by varying the temperature within the furnace that surrounds it. Recently, batch annealing is widely used to produce steel sheets like automobile cold rolled steel sheets and sheets used for the manufacture of BUS vehicles side-panel parts. We developed a BAF to estimate the effects of batch annealing conditions on the mechanical properties of cold rolled steel sheet for BUS Vehicles. Conditions for the batch annealing process consist of various annealing time and temperature. Its require a yield strength (20~28kg/㎟),tensile strength (28~36kg kg/㎟) and elongation (≥40%). The optimum conditions are 10hr of soaking time and 580℃ of heating temperature.