Apparatus for producing strip of stainless steel
AssigneeNippon Steel Corporation
InventorsShinichi Teraoka, Toshiyuki Suehiro, Eiichirou Ishimaru, Tetsurou Takeshita, Shunji Shoda, Takashi Arai, Hideki Oka, Yoshikatsu Nohara
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Abstract
An apparatus for the production of a stainless steel strip comprising the following devices provided in sequence: a twin-drum continuous casting machine; an atmosphere control cover having in its interior a bridle roll or a pinch roll; a hot-rolling machine; a heat-treating furnace comprising direct fire burners connected to header pipes juxtaposed to one another in the widthwise direction of the furnace over the longitudinal direction of the furnace; a cooler; and a coiler.
Claims10
An apparatus for producing a strip of a stainless steel, comprising the following devices arranged in sequence:
- a twin-drum continuous casting machine for casting a molten stainless steel into a thin strip-like slab having a thickness of not less than 10 mm;
- an atmosphere control cover which cuts off an atmosphere in a carrier zone extending from the continuous casting machine to a hot-rolling machine and, at the same time, has in its interior a bridle roll or a pinch roll for regulating the tension of the strip being carried;
- a hot-rolling machine for rolling the strip with a reduction ratio of not less than 10%;
- a heat-treating furnace equipped with a heating device for either heating the hot-rolled strip and holding the temperature of the hot-rolled strip or holding the temperature of the hot-rolled strip;
- a cooling device for cooling the strip heat-treated in the heat-treating furnace at a rate of not less than 10.degree. C./sec;
- and
- a coiler for coiling the strip cooled in the cooling device.
The apparatus for producing a strip of a stainless steel, comprising a heat-treating furnace for at least holding a temperature of a strip cast by means of a twin-drum continuous casting machine, characterized in that at least a portion of carrier rolls within the heat-treating furnace are movably mounted and connected to a lifting device means for bring said movably mounted carrier rolls selectively into contact with and away from contact with said strip moving through said heat-treating furnace, and direct fire burners are provided so as to sandwich therebetween the strip, being carried by the carrier rolls in the furnace, respectively on an upper wall and a lower wall of the heat-treating furnace in such a manner that a flame is ejected through the direct fire burners directly onto both sides of the strip.
Dependencies are inferred from the claim text.