Sheet of steel galvanized by immersion in a straw zero and the hot galvanization and composition of the bath for its preparation

摘要

The present invention relates to a method of hot galvanization by immersion in order to obtain a sheet of steel galvanized a straw zero. / p & & p & in accordance with the invention, this water is effected with a composition comprising less than 0,1 has 0,2 by weight of al, 0,1 to 0,5 sb, the impurities unavoidable encompassing pb, cd, sn, but does not containing fe, in a quantity lower a total 0,02 by weight, the remainder being of the zinc, the ratio sbpb in the said coating being of 10 to 250 and the existing in the said coating being present in the form of a eutectic al - sb, as shown in fig. 1 -. & / p & & p & is obtained a sheet of steel galvanized having an excellent resistance, after aging, at the peeling of its coating.