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1.发明公开
公开(公告)号：EP3352922A1
公开(公告)日：2018-08-01
申请号：EP16774773.2
申请日：2016-09-21
申请人： Novelis Inc.
发明人： GAENSBAUER, David Anthony , CARVALHO, Francisco , MINNITI, Eduardo , MORAES, Tiago , EBOLI, Carlos
摘要： Systems and methods for using full-width hot sprays to pre-heat rolling mills prior to processing of metal sheet or plate are described herein. The hot sprays may be individually controlled. Using hot sprays can allow the rolling mill to reach operating temperature and achieve a desired thermal crown so that metal sheet or plate may be processed immediately within tolerances for flatness and gauge accuracy. Pre-heating of rolling mills can eliminate the need of the rolling mill to operate in a transitional period of work roll heating and can increase efficiency by eliminating or reducing scrap material and mill downtime. Hot sprays may also be incorporated with existing coolant systems to provide thermal control systems for rolling mills with bi-directional temperature controls.
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2.发明授权
公开(公告)号：EP3352922B1
公开(公告)日：2020-09-02
申请号：EP16774773.2
申请日：2016-09-21
申请人： Novelis Inc.
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公开(公告)号：EP3386657A1
公开(公告)日：2018-10-17
申请号：EP16805634.9
申请日：2016-11-15
申请人： Novelis, Inc.
IPC分类号： B21B27/00
CPC分类号： B21B1/227 , B21B27/005 , B21B2003/001 , B21B2261/14 , B21B2267/10 , B21D51/2607
摘要： A textured work roll can impart a desired texture on a metal substrate, such as an aluminum or aluminum alloy sheet. The textured work roll can be used for applying a gloss finish on the metal substrate. The textured work roll can be textured by grinding the work roll to form a ground work roll; electro-discharge texturing the work roll to form an electro-discharge textured work roll; and polishing the work roll to form a polished work roll. The polished work can have an Ra value between 0.30 μm and 0.70 μm. The polished work roll can be used to apply the gloss finish on the metal substrate.
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