Hot-base spangle-free high-strength galvanized plate for automobile structure and production method thereof

The invention belongs to the technical field of steel, and relates to a production method of a hot-base spangle-free galvanized plate for an automobile structure based on an endless strip steel production line and an acid-plating continuous production line. The galvanized plate comprises the following raw materials of, in percentage by mass, 0.08-0.11% of C, 0.15-0.25% Si, 0.65-0.75% of Mn, less than or equal to 0.025% of P, less than or equal to 0.015% of S, 0.010-0.020% of Nb, 0.010-0.030% of Ti, 0.010-0.050% of Al, and the balance iron and inevitable impurities. 本发明属于钢铁技术领域，涉及基于无头带钢生产线和酸镀连续产线生产汽车结构用热基无锌花镀锌板方法，包括下述质量百分比的原料，C：0.08-0.11%，Si:0.15-0.25%，Mn：0.65-0.75%，P：≤0.025%，S：≤0.015%；Nb:0.010-0.020%；Ti:0.010-0.030%；Al：0.010-0.050%，其余为铁和不可避免的杂质。