Invention Grant
US07878040B2 Method of drawn and ironed processing of resin coated metal sheet and resin coated drawn and ironed can produced thereby 有权
由此可以制造涂覆有树脂的金属板和涂覆了拉伸和熨烫的树脂的拉制和熨烫加工方法

Method of drawn and ironed processing of resin coated metal sheet and resin coated drawn and ironed can produced thereby
Abstract:
A method of drawn and ironed processing of a resin coated metal sheet, in which in the drawn and ironed processing of resin coated metal sheet, there can be obtained a can body of satisfactorily small wall thickness and at an opening edge part of the can body, the coating resin is free from any defect; and a resin coating drawn and ironed processed can produced thereby.There is provided a method of drawn and ironed processing of a resin coated metal sheet, comprising performing drawn and ironed processing of a resin coated metal sheet composed of a metal sheet having at least one major surface thereof coated with an organic resin with the use of a punch and a die into a can body, characterized in that ironing is conducted with the use of a punch having a small-diameter portion at its rear end so that the ratio of ironing at an opening edge part of the can body after shaping falls within the range of 0 to 15%. Further, there is provided a drawn and ironed processed can of resin coated metal sheet produced through the processing method.
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