APPARATUS FOR OXIDATION TREATMENT OF METAL

摘要

PCT No. PCT/JP89/00824 Sec. 371 Date Nov. 28, 1989 Sec. 102(e) Date Nov. 28, 1989 PCT Filed Aug. 14, 1989 PCT Pub. No. WO90/02212 PCT Pub. Date Mar. 8, 1990.A metal oxidation treatment apparatus to form the passivation film on the surface of the metal to be oxidized such as stainless steel or the like, comprising an oxidation furnace, a gas inlet to introduce gas into said oxidation furnace, a discharge outlet to discharge the gas from said oxidation furnace, and a heater to heat said oxidation furnace to the predetermined temperature, so that the metal to be oxidized is heated and oxidized in dry oxidation atmosphere while gas is passed in said oxidation furnace.