To provide a plate thickness reduction equipment capable of efficiently executing rolling down forming of a material to be formed in the direction of plate thickness.
In a thickness reduction press 5, a material to be formed 1 heated by a heat-reserving heating furnace 4 is rolled down in the direction of plate thickness with a plurality of metallic dies 30a, 30b, 33a and 33b arranged along a transfer line S, and a part of the material 1 subjected to rolling down forming by the thickness reduction press 5 is rolled down in the direction of plate thickness by work rolls 6a, 6b of a roughing roll 7. Further, the part of the material 1 subjected to rolling down forming by the thickness reduction press 5 is loosened downward by a looping mechanism 8 to absorb a forwarding motion of the material 1 owing to reduction of plate thickness of the material 1 by the thickness reduction press 5.
FUJII YASUHIRO
SATO KAZUYUKI
NIPPON KOKAN KK
Tsunemitsu Yamada (1 person outside)
Next Patent: MANUFACTURE OF HOT ROLLED STEEL SHEET EXCELLENT IN SURFACE QUALITY