Thin Plate Production of Copper Alloy C19210 by Twin Roll Casting Using Commercial Scale

Abstract Copper alloy C19210 have excellent corrosion resistance, heat resistance, and conductivity, and is used for precision electronic parts such as lead frame materials. Conventionally, copper alloy strips are manufactured by repeating heat treatment and cold rolling, and have a problem that it is multi-process and production cost is expensive. On the other hand, twin roll casting can improve the above problems because strips are made directly from molten metals. In this study, twin roll strip casting of copper alloy C19210 using commercial scale machine was operated. The aims of this study is to investigate the possibility of strip casting for copper alloy. The effect of the side dam and release agent was researched. The effect of rolls speed on the strip surface condition was researched. The improved side dam prevented molten metal leakage. The release agent prevented sticking of the manufactured strip to the roll surface. The strip produced at roll speed of 7 m/min and 10 m/min had a lot of metallic luster. Moreover, the strip produced at roll speed of 7 m/min had more metallic luster than the strip produced at roll speed of 10 m/min. The lower the roll speed is, the greater the rolling load is. At a roll speed of 7 m / min, the rolling load became the maximum rolling load of the equipment. For producing strips with copper alloy C19210, higher rolling loads are preferred.

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Twin roll casting of copper alloy C19210 using commercial scale machine

The Proceedings of the Materials and processing conference ◽

10.1299/jsmemp.2019.27.425 ◽

2019 ◽

Vol 2019.27 (0) ◽

pp. 425

Author(s):

Shogo IMAI ◽

Makoto HAGIAWARA ◽

Yuto HORIGOME ◽

Shinichi NISHIDA

Keyword(s):

Copper Alloy ◽

Twin Roll Casting ◽

Commercial Scale ◽

Roll Casting ◽

Twin Roll

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405 Continuous strip casting of copper alloy by vertical twin roll casting process

The Proceedings of Ibaraki District Conference ◽

10.1299/jsmeibaraki.2015.23.137 ◽

2015 ◽

Vol 2015.23 (0) ◽

pp. 137-138

Author(s):

Tomohisa TAKADA ◽

Fumiya YAMANO ◽

Yuki AKAIKE ◽

Yoshitaka SATO ◽

Masaru FUJITA ◽

...

Keyword(s):

Copper Alloy ◽

Casting Process ◽

Strip Casting ◽

Twin Roll Casting ◽

Roll Casting ◽

Twin Roll ◽

Continuous Strip

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Design of a Composite Roll with Internal Cooling Channels for Twin-Roll Casting

Materials Science Forum ◽

10.4028/www.scientific.net/msf.765.331 ◽

2013 ◽

Vol 765 ◽

pp. 331-335 ◽

Cited By ~ 1

Author(s):

Jong Jin Park

Keyword(s):

Finite Element Analysis ◽

Copper Alloy ◽

Cooling Water ◽

Internal Cooling ◽

Element Analysis ◽

Twin Roll Casting ◽

Cooling Channels ◽

Steel Core ◽

Roll Casting ◽

Twin Roll

In twin-roll casting, the melt is cooled, solidified and rolled to a specific thickness only by the rolls and consequently a lot of heat is transferred from the melt to the rolls through the melt/roll interface. In a composite roll, consisting of a steel core and a copper-alloy sleeve, the heat is finally removed by cooling water flowing through internal cooling channels. In the present study, design of the channels was improved using finite-element analysis in the aspects of structural as well as fatigue strengths.

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