Study of aluminum alloy strip cast by an unequal diameter twin roll caster.

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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Improvement of Porosity of Strip Using a Scraper on the Casting by a Vertical Type High Speed Roll Caster

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.146-147.1108 ◽

2010 ◽

Vol 146-147 ◽

pp. 1108-1113 ◽

Cited By ~ 3

Author(s):

Ryoji Nakamura ◽

Yusuke Shiotsu ◽

Kosuke Komeda ◽

Shinji Kumai ◽

Hisaki Warari

Keyword(s):

Aluminum Alloy ◽

High Speed ◽

Alloy Strip ◽

Roll Speed ◽

Strip Cast ◽

Twin Roll Caster ◽

Twin Roll

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.

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Mechanical property of AC4CH aluminum alloy strip cast by an unequal diameter twin roll caster

The Proceedings of the Materials and processing conference ◽

10.1299/jsmemp.2018.26.210 ◽

2018 ◽

Vol 2018.26 (0) ◽

pp. 210

Author(s):

Maho TUCHIDA ◽

Toshio HAGA ◽

Toshiya IKUMI ◽

Yuji SODA

Keyword(s):

Mechanical Property ◽

Aluminum Alloy ◽

Alloy Strip ◽

Strip Cast ◽

Twin Roll Caster ◽

Twin Roll

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A high speed twin roll caster for aluminum alloy strip

Journal of Materials Processing Technology ◽

10.1016/s0924-0136(01)00673-2 ◽

2001 ◽

Vol 113 (1-3) ◽

pp. 291-295 ◽

Cited By ~ 25

Author(s):

T Haga ◽

S Suzuki

Keyword(s):

Aluminum Alloy ◽

High Speed ◽

Alloy Strip ◽

Twin Roll Caster ◽

Twin Roll

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600 mm-Wide Strip Casting Using Single Roll Caster Equipped with Scraper

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.805.43 ◽

2019 ◽

Vol 805 ◽

pp. 43-49

Author(s):

Toshio Haga

Keyword(s):

Mechanical Properties ◽

Aluminum Alloy ◽

Tensile Stress ◽

Tension Test ◽

Alloy Strip ◽

Full Width ◽

Striped Pattern ◽

Wide Strip ◽

Twin Roll Caster ◽

Twin Roll

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.

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Casting of wire-inserted composite aluminum alloy strip using a twin roll caster

Journal of Materials Processing Technology ◽

10.1016/j.jmatprotec.2007.04.015 ◽

2007 ◽

Vol 192-193 ◽

pp. 108-113 ◽

Cited By ~ 14

Author(s):

T. Haga ◽

K. Takahashi ◽

H. Watari ◽

S. Kumai

Keyword(s):

Aluminum Alloy ◽

Alloy Strip ◽

Twin Roll Caster ◽

Twin Roll

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Effect of Base Strip Temperature on Bonding of Three-Layer Clad Strip Cast by a Vertical-Type Tandem Twin Roll Caster

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.792.8 ◽

2018 ◽

Vol 792 ◽

pp. 8-15

Author(s):

Toshio Haga ◽

Kentaro Okamura ◽

Hisaki Warari ◽

Shinichi Nishida

Keyword(s):

Shear Stress ◽

Aluminum Alloy ◽

Cold Rolling ◽

Shear Test ◽

Tensile Shear ◽

Bonding Condition ◽

Strip Cast ◽

Twin Roll Caster ◽

Twin Roll

The effect of the base strip temperature on the bonding between base strip and overlay strips in a three-layer clad strip cast by a vertical-type tandem twin roll caster was investigated. The base strip was 3003 aluminum alloy and the overlay strip was 4045 aluminum alloy. The bonding was investigated for base strip temperatures ranging from 200 °C to 550 °C. The bonding condition was investigated by cold-rolling, bending-to-failure test and tensile shear test. The shear stress increased with the base strip temperature. Sound bonding was achieved at base strip temperatures higher than 450 °C. The results of this study indicated that the second caster is not required to be set below the first roll caster.

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