Patent Number: 6,305,096

Title: Pickling device

Abstract: An acid pickling tank body 11 is partitioned with a partition wall 12 into a first tank 13 and a second tank 14. The first tank 13 and the second tank 14 are filled with acid liquids L.sub.1 and L.sub.2, respectively, of different concentrations. A lid 15 is attached to the top of the acid pickling tank body 11. On the lid 15, immersion guide rolls 25a to 25d, 26a to 26d are mounted. On the bottom surface of the first tank 13 and the second tank 14, skids 31a to 31e, 32a to 32d are mounted via support blocks 27a to 27e, 28a to 28d. A liquid seal 22 is provided which has a cushion nozzle 38 for jetting the acid liquids L.sub.1 and L.sub.2 toward the surface of a strip steel plate S. traveling above the partition wall 12 for the first tank 13 and the second tank 14.

Inventors: Hirai; Etsuro (Hiroshima, JP), Furuya; Takumi (Hiroshima, JP), Saka; Masato (Hiroshima, JP), Taniguchi; Nobuyuki (Hiroshima, JP)

Assignee: Mitsubishi Heavy Industries, Ltd.

International Classification: C23G 3/02 (20060101); B08B 003/04 ()

Expiration Date: 10/23/2018