Production of asymmetrical shape steel

Abstract

Abstract PURPOSE:To improve production efficiency by forming a notch groove at the center of a symmetrically sectioned shape steel and cooling the steel in the stage of hot rolling, and cutting the notch groove part while rolling down a part of the symmetrically sectioned shape steel by means of roll calibers in a way not to bend the steel. CONSTITUTION:Two shape steels having an asymmetrical sectional shape are combined to form a shape steel having a symmetrical section and after such steel is hot-rolled, the center thereof is longitudinally cut to produce two asymmetrical shape steels. A notch groove is formed at the center of the symmetrically sectioned shape steel in the stage of hot rolling and after cooling, the notch part is cut while a part of the symmetrically sectioned shape steel is rolled down by roll calibers in a way not to bend the steel.

Inventors

• 👤 Yoshiaki Kusaba
• 👤 芳昭 草場

Bibliographic Details