Toyo Kohan Co., Ltd.

Toyo Seikan Kaisha, Ltd.

Toyo Seikan Co., Ltd.

Masahiro Kai

Shinichi Taya

Etsuro Tsutsumi

Junichi Tanabe

Kota Sadaki

Masanobu Matsubara

Norihito Saiki

Hidekazu Tomaru

Hiroshi Doi

Etsuro Tutsumi

Wataru Kurokakwa

Provided is a container-use surface treated steel sheet which is manufactured without using chromium and exhibits excellent working adhesion with a coated organic resin, a method of manufacturing the container-use surface treated steel sheet, an organic resin coated surface treated steel sheet. The container-use surface treated steel sheet is a surface treated steel sheet where nickel plating is applied to at least one-side surface of surfaces of a steel sheet by coating, wherein nickel plating has a fine particle shape formed by fine particles which has particle density of 2 to 500 pieces/&#x3bc;mand having an average particle size of 0.05 to 0.7 &#x3bc;m. The container-use surface treated steel sheet is also characterized in that a coating weight of the nickel plating of the container-use surface treated steel sheet is 0.1 to 12 g/m, metal tin is contained in coating of the nickel plating, and an amount of metal tin is 0.05 to 0.1 g/m. The organic-resin-coated surface treated steel sheet of the present invention is characterized in that an organic resin layer is formed on at least one surface of the container-use surface treated steel sheet. The metal can is formed by working the organic-resin-coated surface steel sheet.

Surface-treated steel sheet for container having excellent processing adhesion to resin, method for manufacturing same, and can

A method of drawing and ironing a resin film laminated metal sheet for forming a can body having a bottom portion, a can wall portion and a flange-forming portion by drawing the resin film laminated metal sheet obtained by laminating at least one surface of a metal sheet with an organic resin film, followed by ironing by using a punch and a plurality of dies neighboring each other. The can wall is effectively prevented from being broken by a decrease in the thickness of the can wall, and drawn and ironed cans are efficiently formed having a thickness which is decreased as designed.

Method of drawing and ironing a resin film laminated metal sheet and resin film laminated drawn and ironed can using the same method

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.

Method of drawn and ironed processing of resin coated metal sheet and resin coated drawn and ironed can produced thereby

Growing community of inventors

Tokyo, Japan

Masahiro Kai