Chitanbannoreikanatsuenho

摘要

PURPOSE:To prevent titanium from building up on a rolling roll and to obtain titanium plates having excellent surface quality by forming a titanium fluoride film on the surface of a titanium plate and rolling the plate with a rolling oil or a water soluble rolling liquid. CONSTITUTION:A treating liquid forming a titanium fluoride film on a titanium plate is an aqueous solution containing fluorine compounds and heavy metal ions and inorganic acid ions as additives. The titanium fluoride film of about 0.1-10g/m2 as a unit of square meter is formed on a titanium plate surface by dipping or spraying the titanium plate in or with the treating liquid. Rolling is performed with a rolling oil such as a mineral oil, natural oil, synthetic esther, or mixture of those oils or a water soluble lubricant. By that method, a coefficient of friction is reduced and titanium is prevented from building up on a rolling roll.