Strip casting of aluminum alloy with wide freezing zone using an unequal diameter twin roll caster

2017 ◽  
Vol 2017.92 (0) ◽  
pp. M503
Author(s):  
Ryusuke OONISHI ◽  
Toshio HAGA
Keyword(s):  
Aluminum Alloy ◽  
Strip Casting ◽  
Twin Roll Caster ◽  
Twin Roll

Three-Layer Clad Strip Casting Using a Vertical Type Tandem Twin Roll Caster

2018 ◽  
Vol 773 ◽  
pp. 171-178
Author(s):  
Toshio Haga ◽  
Kentaro Okamura ◽  
Hisaki Warari ◽  
Shinichi Nishida
Keyword(s):  
Aluminum Alloy ◽  
Strip Casting ◽  
Tensile Shear ◽  
Shear Testing ◽  
Roll Speed ◽  
Solidification Temperature ◽  
Twin Roll Caster ◽  
Twin Roll

This paper shows improvements made to a vertical type tandem twin roll caster and the appropriate casting conditions necessary to cast three-layer clad strips, the base strip of which has a lower solidification temperature than the overlay strip. In experiments, 4045 aluminum alloy was used for the base strip and 3003 aluminum alloy was used for the overlay strips. The roll speed was 30 m/min. By connecting the overlay strips to the base strip one at a time and cooling the base strip to between 450 and 530°C after applying the first overlay strip, a sound three-layer clad strip – defined as one in which the interfaces between strips are clear and do not separate during bending-to-failure tests – could be cast. The tensile shear testing between the base and second overlay strip was improved as the base-strip temperature was increased to 450-530°C range.

Continuous Strip Casting of Aluminum Alloy AC7A Using Commercial Scale Twin Roll Caster

2020 ◽  
Vol 2020.28 (0) ◽  
pp. 409
Author(s):  
Makoto HAGIWARA ◽  
Shogo IMAI ◽  
Takahiro SHIGA ◽  
Mizuki KAWAWA ◽  
Shinichi NISHIDA
Keyword(s):  
Aluminum Alloy ◽  
Strip Casting ◽  
Commercial Scale ◽  
Twin Roll Caster ◽  
Twin Roll ◽  
Continuous Strip

scholarly journals 728 Strip Casting of A5182 Aluminum Alloy by an unequal diameter twin roll caster

2006 ◽  
Vol 2006.81 (0) ◽  
pp. _7-28_
Author(s):  
Hideki INUI ◽  
Toshio HAGA ◽  
Hiroshi SAKAGUCHI ◽  
Shinji KUMAI ◽  
Kenta SUZUKI ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Strip Casting ◽  
Twin Roll Caster ◽  
Twin Roll

Semisolid Strip Casting of Aluminum Alloy by a Twin Roll Caster Equipped with a Channel Scraper

2017 ◽  
Vol 748 ◽  
pp. 181-186
Author(s):  
Toshio Haga ◽  
Shinichi Nishida ◽  
Hisaki Watari
Keyword(s):  
Aluminum Alloy ◽  
Tensile Stress ◽  
Cold Rolling ◽  
Metal Layer ◽  
Strip Casting ◽  
Center Line ◽  
Cold Rolling And Annealing ◽  
Twin Roll Caster ◽  
Equiaxed Grain ◽  
Twin Roll

An unequal diameter twin-roll caster equipped with a channel scraper is proposed to improve center-line segregation. A semisolid metal layer was made by the channel scraper on the upper side of the strip and solidified by an upper roll. The twin-roll caster cast a strip of 5182 with equiaxed grain and without center-line segregation at a speed of 30 m/min and a unit roll load of 104 N/mm. The tensile stress and elongation after cold rolling and annealing were 294 MPa and 28%, respectively.

Strip casting of aluminum alloy A7075 using commercial scale twin roll caster

2019 ◽  
Vol 2019.27 (0) ◽  
pp. 419
Author(s):  
Yuto HORIGOME ◽  
Makoto HAGIWARA ◽  
Shogo IMAI ◽  
Kentoro TSUNODA ◽  
Shinichi NISHIDA
Keyword(s):  
Aluminum Alloy ◽  
Strip Casting ◽  
Commercial Scale ◽  
Twin Roll Caster ◽  
Twin Roll

Inline Rolling of 5182 Aluminum Alloy Strip Cast by a Vertical Type High Speed Twin Roll Caster

2010 ◽  
Vol 139-141 ◽  
pp. 477-480
Author(s):  
Ryoji Nakamura ◽  
Shuya Hanada ◽  
Shinji Kumai ◽  
Hisaki Watari
Keyword(s):  
Aluminum Alloy ◽  
High Speed ◽  
Rolling Speed ◽  
Center Line ◽  
Alloy Strip ◽  
Ripple Mark ◽  
Roll Casting ◽  
Strip Cast ◽  
Twin Roll Caster ◽  
Twin Roll

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%.

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