scholarly journals Effect of Roll Surface on Aluminum Alloy Strip Fabricated by a High-Speed Twin Roll Caster

2013 ◽  
Vol 79 (804) ◽  
pp. 1156-1160
Author(s):  
Takuya YAMASHIKI ◽  
Toshio HAGA ◽  
Shinji KUMAI ◽  
Hisaki WATARI
Keyword(s):  
Aluminum Alloy ◽  
High Speed ◽  
Alloy Strip ◽  
Roll Surface ◽  
Twin Roll Caster ◽  
Twin Roll

715 Effect of roll surface on aluminum alloy strip fabricated by a high-speed twin roll caster

2012 ◽  
Vol 2012.20 (0) ◽  
pp. _715-1_-_715-5_
Author(s):  
Takuya YAMASHIKI ◽  
Toshio HAGA ◽  
Shinji KUMAI ◽  
Hisaki WATARI
Keyword(s):  
Aluminum Alloy ◽  
High Speed ◽  
Alloy Strip ◽  
Roll Surface ◽  
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%.

scholarly journals Effect of Side-Dam Plate on Burrs at Edges of Aluminum Alloy Strip Fabricated by a High Speed Twin Roll Caster

2013 ◽  
Vol 79 (804) ◽  
pp. 1152-1155
Author(s):  
Takuya YAMASHIKI ◽  
Yuki SHIRAKAWA ◽  
Toshio HAGA ◽  
Shinji KUMAI ◽  
Hisaki WATARI
Keyword(s):  
Aluminum Alloy ◽  
High Speed ◽  
Alloy Strip ◽  
Twin Roll Caster ◽  
Twin Roll

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

2010 ◽  
Vol 146-147 ◽  
pp. 1108-1113 ◽  
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.

716 Effect of side-dam plate on burrs at edges of aluminum alloy strip fabricated by a high-speed twin roll caster

2012 ◽  
Vol 2012.20 (0) ◽  
pp. _716-1_-_716-4_
Author(s):  
Takuya YAMASHIKI ◽  
Yuki SHIRAKAWA ◽  
Toshio HAGA ◽  
Shinji KUMAI ◽  
Hisaki WATARI
Keyword(s):  
Aluminum Alloy ◽  
High Speed ◽  
Alloy Strip ◽  
Twin Roll Caster ◽  
Twin Roll

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

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.

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

2007 ◽  
Vol 192-193 ◽  
pp. 108-113 ◽  
Author(s):  
T. Haga ◽  
K. Takahashi ◽  
H. Watari ◽  
S. Kumai
Keyword(s):  
Aluminum Alloy ◽  
Alloy Strip ◽  
Twin Roll Caster ◽  
Twin Roll

High Speed Twin-Roll Casting of Al-Mg Alloys

2010 ◽  
Vol 154-155 ◽  
pp. 1544-1548 ◽  
Author(s):  
Kosuke Komeda ◽  
Ryoji Nakamura ◽  
Shinji Kumai
Keyword(s):  
Heat Transfer ◽  
Aluminum Alloy ◽  
High Speed ◽  
Aluminum Alloy 5182 ◽  
Roll Casting ◽  
Twin Roll Caster ◽  
Deep Drawing Test ◽  
Study Heat Transfer ◽  
Twin Roll ◽  
Steel Rolls

The disadvantages of the conventional twin-roll caster for aluminum alloy are low casting speeds and limited choices of alloys that are castable by this processing. It is known that strip casting of aluminum alloy 5182 is very difficult because of their wider freezing zones. The vertical-type high-speed twin-roll caster used in the present study was devised to overcome these disadvantages. Features of the high speed twin roll casters are as below. Mild steel rolls were used in order to increase the casting speed and to be made at a lower equipment cost. Roll coating is produced in casting of Al-Mg alloy. Therefore lubricant, that resists heat transfer, was not used in the present study. Heat transfer between melt and the roll was improved by hydrostatic pressure of the melt. Low superheat casting was carried out in order to improve microstructure of the strip. In the present study, effectiveness of a high-speed twin roll caster for recycling aluminum alloy was investigated. The effects of the high-speed twin roll caster on alleviating the deterioration of mechanical properties by impurities were investigated. Properties of the cast strip were investigated by metalography, a tension test, and a deep drawing test.

Sign in / Sign up

Export Citation Format

Share Document