Roller for rolling electrode sheet comprising hard layer formed by physical vapor deposition and manufacturing method of the same
AssigneeJ&L Tech Co., Ltd.
InventorsJoongil Jun, Eunguk Lee, Sounghun Lee, Yongsoo Lim
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Abstract
A method for manufacturing a roller for rolling an electrode sheet, comprising a hard layer formed by physical vapor deposition (PVD) according to an embodiment of the present disclosure comprises: forming a hard layer by PVD on a roller core made of steel containing carbon; and polishing the hard layer so that a thickness of the hard layer at a center portion of the roller is different from a thickness of the hard layer at an end portion of the roller.
Claims10
A method for manufacturing a roller for rolling an electrode sheet, comprising a hard layer formed by physical vapor deposition (PVD), the method comprising:
- forming a hard layer by PVD on a roller core made of steel containing carbon;
- and
- polishing the hard layer so that a thickness of the hard layer at a center portion of the roller is different from a thickness of the hard layer at an end portion of the roller.
A roller for rolling an electrode sheet, comprising a hard layer formed by physical vapor deposition (PVD), comprising:
- a roller core made of steel containing carbon;
- and
- a hard layer formed on the roller core by PVD,
- wherein the hard layer is formed by polishing so that a thickness of the hard layer at a center portion of the roller is different from a thickness of the hard layer at an end portion of the roller.
Dependencies are inferred from the claim text.