Casting of Al–Si hypereutectic aluminum alloy strip using an unequal diameter twin roll caster

2007 ◽  
Vol 191 (1-3) ◽  
pp. 238-241 ◽  
Author(s):  
Toshio Haga ◽  
Hideki Inui ◽  
Hisaki Watari ◽  
Shinji Kumai
2010 ◽  
Vol 139-141 ◽  
pp. 477-480
Author(s):  
Ryoji Nakamura ◽  
Shuya Hanada ◽  
Shinji Kumai ◽  
Hisaki Watari

An inline hot rolling was operated on 5182 aluminum alloy strip cast using a vertical type high speed caster (VHSTRC) at the speed of 60 m/min. A porosity existing at center line of the thickness and a ripple mark on the surface, these are typical defects of the strip cast by the VHSTRC, could be improved by the inline rolling. The rolling speed was as same as the roll-casting-speed of 60m/min. The temperature of the strip, when the inline rolling was operated, was 450oC. The reduction of the strip of the inline rolling was 35%.


2019 ◽  
Vol 805 ◽  
pp. 43-49
Author(s):  
Toshio Haga

The casting of a 600 mm-wide 5182 aluminum alloy strip was attempted using a single-roll caster equipped with a scraper. This caster could cast a strip at speeds ranging from 10 to 40 m/min. These casting speeds are much higher than that of a conventional twin-roll caster. The scraper load suitable for scribing the wide strip was investigated. The strip could be scribed at full width by the scraper. The mechanical properties of the strip were investigated using a tension test and a cup test. The tensile stress was 320 MPa and the elongation was 30%. When deep drawing was conducted, no striped pattern, which occurs via segregation, appeared when both surfaces were facing outside.


2007 ◽  
Vol 192-193 ◽  
pp. 108-113 ◽  
Author(s):  
T. Haga ◽  
K. Takahashi ◽  
H. Watari ◽  
S. Kumai

2013 ◽  
Vol 79 (804) ◽  
pp. 1156-1160
Author(s):  
Takuya YAMASHIKI ◽  
Toshio HAGA ◽  
Shinji KUMAI ◽  
Hisaki WATARI

2013 ◽  
Vol 79 (804) ◽  
pp. 1152-1155
Author(s):  
Takuya YAMASHIKI ◽  
Yuki SHIRAKAWA ◽  
Toshio HAGA ◽  
Shinji KUMAI ◽  
Hisaki WATARI

2010 ◽  
Vol 146-147 ◽  
pp. 1108-1113 ◽  
Author(s):  
Ryoji Nakamura ◽  
Yusuke Shiotsu ◽  
Kosuke Komeda ◽  
Shinji Kumai ◽  
Hisaki Warari

Porosity occurred in the 5182 aluminum alloy strip cast by a vertical type high speed twin roll caster. The porosity was caused by high-roll-speed and low-roll-load. Improvement of the porosity was tried by a scraper. The scraper was mounted on the roll, and the scraper was moveable depend on the thickness of the solidified layer on the roll. The scraper scribed the semisolid layer to improve the porosity. The scraper was useful to decrease the porosity of roll cast 5182 aluminum alloy strip.


2004 ◽  
Vol 2004.12 (0) ◽  
pp. 251-252
Author(s):  
Toshio HAGA ◽  
Masaaki IKAWA ◽  
Hiroshi SAKAGUCHI ◽  
Hideki INUI ◽  
Hisaki WATARI ◽  
...  

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