Jfe Steel Corporation

Nkk Corporation

Nec Corporation

Nippon Quaker Chemical, Ltd.

Jfe Steel Corrporation

Yoshihiko Yasue

Hiroki Iwasa

Hiroshi Kagechika

Katsumi Kojima

Hiroshi Ishikawa

Hiroshi Kubo

Yasuhide Oshima

Yoshinori Yomura

Tadahiko Mishima

Yuka Nishihara

Naoyuki Oniwa

Junichi Kitagawa

Yoichiro Yamanaka

Keishi Ohashi

Tetsuya Osaka

Masaki Tada

Kazuhiko Yamada

Mikiko Saito

Takeshi Adaniya

Hiroshi Kibe

Naoyuki Ooniwa

Hisato Noro

Shinsuke Watanabe

Hisao Yasuhara

Toshikazu Ikeda

Katsunori Nakai

Takeyoshi Fukuda

Tomohiro Kanokogi

A DI forming water-based coolant of a laminated metal sheet includes at least one kind of base (a) selected from alkanolamines and alkali metal hydroxides, a fatty acid (b), and water (c), wherein the total content of the base (a) and the fatty acid (b) is 0.02 to 4% by mass and the ratio of a straight-chain fatty acid having a carbon number of 6 to 12 in the fatty acid (b) is 80 to 100% by mass.

DI forming water-based collant of laminated metal sheet and method for DI forming laminated metal sheet

A method to evaluate the corrosion resistance of a can to a content includes filling the can with the content to form a specimen, setting the specimen in an apparatus capable of blocking an outside atmosphere from entering the specimen, optionally saturating the content with nitrogen gas to expel dissolved oxygen present in the content, thereafter while maintaining the temperature of the content at a constant temperature in the range of 25 to 60&#xb0; C., applying a constant potential that is more anodic than an immersion potential by 50 mV to 200 mV to the can of the specimen, and evaluating the corrosion resistance of the can to the content based on the accumulated amount of electricity generated during a time appropriately selected from 6 to 48 hours immediately after the application of the constant potential.

Method for evaluating corrosion resistance of cans to contents

A resin-coated metal sheet includes resin layers formed on both surfaces thereof and composed of a polyester as a main component, wherein the resin layer covering the inner surface of a container after the formation thereof has an interfacial free energy with water of 30 mN/m or more. The container formed from the resin-coated metal sheet exhibits an excellent content release property for contents with a high protein content.

Resin-coated metal sheet

There is provided a laminated metal sheet used for making a highly processed two-piece can body which endures harsh conditions such as retort treatment, and a two-piece can body made of the laminated steel sheet. A laminated metal sheet for a two-piece can body, including a metal sheet having a polyester resin film layer on each side of the metal sheet, the polyester resin film layer to be the outside of the can body having a crystallization temperature of 60 to 100&#xb0; C., and the surface of the polyester resin film layer having a center line surface roughness (Ra) of 0.2 to 1.8 &#x3bc;m. The polyester resin film layer to be the outside of the can body is preferably composed of 40 to 100% by mass of a resin composed mainly of butylene terephthalate and 0 to 60% by mass of a resin composed mainly of ethylene terephthalate.

Laminated metal sheet for two-piece can body and two-piece laminated can body

A can body for a two-piece can made of a laminated steel sheet, the laminated steel sheet containing a steel sheet and a copolyethylene terephthalate resin layer containing at least hyone member selected from the group consisting of isophthalic acid and cyclohexane dimethanol as a copolymer component in a proportion of 5 to 20 mol %, and having a crystallization temperature of 120&#xb0; C. to 140&#xb0; C. on at least one side of the steel sheet; and satisfying the following relationships: r&#x2266;r, 0.1&#x2266;r/R&#x2266;0.25, and 1.5&#x2266;h/(R&#x2212;r)&#x2266;4, wherein rrepresents the minimum radius of the can body, r represents the maximum radius of the can body, h represents the height of the can body, and R represents the radius of the laminated steel sheet having a circular shape before shaping whose weight is the same as that of the can body. The can body has a high strain level, and does not suffer from delamination and breakage of the resin layer.

Two-piece can body made of laminated steel sheet, and method of producing the two-piece can body

A method for manufacturing a can body by forming a circular laminated steel sheet having a radius of Rincludes producing a form at least one time with a laminated steel sheet coated with a polyester resin, which has a plane orientation coefficient of 0.06 or less such that that the height h, the maximum radius r, and the minimum radius d of the form satisfy d&#x2266;r, 0.2&#x2266;d/R&#x2266;0.5, and 1.5&#x2266;h/(R&#x2212;r)&#x2266;2.5, where R represents the radius of the laminated steel sheet having a weight equivalent to the weight of a final form; heating the resulting form at least one time at a temperature of 150&#xb0; C. or higher, and lower than or equal to the melting point of the polyester resin; and working the heat-treated form into a form satisfying d&#x2266;r, 0.1&#x2266;d/R&#x2266;0.25, and 1.5&#x2266;h/(R&#x2212;r)&#x2266;4.

Can body for laminated steel sheet two-piece can and method for manufacturing can body

In a method for producing a two-piece can, a circular disk of a laminated steel sheet having a thermoplastic resin coating layer is subjected to multistage forming to produce a final formed body having a height h, a maximum radius r, and a minimum radius d (the case where r is equal to d is also included). Forming is performed so that the height h, maximum radius r, and minimum radius d of the final formed body satisfy the relationships 0.1&#x2266;d/R&#x2266;0.25 and 1.5&#x2266;h/(R&#x2212;r)&#x2266;4 with respect to a radius R of a circular disk before forming whose weight is equal to that the final formed body. At an intermediate stage of forming, a formed body is subjected to heat treatment at a temperature of not less than a melting point of a thermoplastic resin but not more than a temperature 30&#xb0; C. higher than the melting point.

Method for producing two-piece can and two-piece laminated can

We manufacture a two-piece can by the method using a laminated steel sheet as the base material, having the steps of: drawing a cylindrical blank for several times to form a can body in a shape of cylinder integrated with bottom; forming a tapered part extending outward from the can body in the radial direction thereof at the tip of the opening of the can body; applying diametral reduction to the tapered part to the diameter of the can body; and applying diametral reduction to the opening side of the can body to a diameter smaller than the diameter of the can body, while satisfying the formulae (1) and (2),1.5&#x2266;/()&#x2003;&#x2003;(1)&#x2266;0.25&#x2003;&#x2003;(2)where h is the height from the can bottom to the tip of the opening, R is the circular blank positional radius, r is the radius of the can bottom, and d is the radius of the tip of the opening.

Two-piece can, method for manufacturing same, and steel sheet therefor

The mold apparatus has a pair of upper and lower molds being used for forming a score on one side surface of an easy-opening can end fabricated by a laminated metal sheet. The upper mold has a convex part for forming the score, and the cross sectional shape of the convex part at the portion contacting the laminated metal sheet is composed of a curve having a change rate of inclination of 0.08 or smaller to the upper surface of the facing lower mold, or having the curve and a straight line. The formed score has a maximum width of 0.80 mm or smaller.

Mold device, easy-open end, method of manufacturing easy-open end, and laminated steel sheet for easy-open end

A data storage medium library includes a plurality of magazines. The magazines include a plurality of cells. An addressor addresses a logical cell address of the cell that stores a data storage medium. The logical cell address indicates what number the cell is as counted in ascending order in the cells that store data storage media. A reporter reports the logical cell address to a host device. When the addressor counts, the addressor skips an empty cell.

Data storage medium library, data storage medium magazine, host device, data storage medium library system, method of operating a data storage medium library, method of operating a host device, method of operating a data storage medium library system, signal-bearing medium embodying a program of data storage medium library, and signal-bearing medium embodying a program of host device

A thin Co--Fe--Ni magnetic film comprising from 40% to 70% by weight of cobalt, from 20% to 40% by weight of iron, and from 10% to 20% of nickel, and having a crystal structure of a mixed crystal with an .alpha. phase of a body-centered cubic structure and a .gamma. phase of a face-centered cubic structure.

Co-Fe-Ni thin magnetic film, process for producing the same, composite

The invention relates to a plated steel sheet for cans which must have high workability and corrosion resistance and can prevent bimetallic corrosion and a method of manufacturing the same. The plated steel sheet is manufactured by forming an electroplated chromium layer on the surface of a steel, removing a hydrated chromium oxide layer formed on the surface of the chromium layer, and forming an aluminum plating layer, so that the electroplated chromium layer and the aluminum plating layer are stacked in direct contact with each other. Another plated steel sheet is manufactured by forming a vacuum deposited chromium layer on the surface of a steel, and forming an aluminum plating layer.

Method of manufacturing an aluminum-plated steel sheet for cans

Disclosed is a surface treated steel plate for cans prepared by drawing and ironing (DI process). In order to enable the manufactured can to maintain a good weatherability and a high corrosion resistance, an Al-Sn alloy film having a thickness of 0.05 to 5.0 .mu.m is formed on at least that surface of a steel plate which faces the outside when the steel plate is drawn to have a cup shape.

Surface treated steel plate for cans

An aluminum plating material to be anodized comprising a substrate, a metal layer formed on the substrate, the metal layer being electrochemically nobler than aluminum and an aluminum alloy, and an aluminum layer formed on the metal layer. The aluminum plating material prevents peeling of an aluminum layer from the substrate upon anodizing, which allows formation of uniform pores of the anodizing film, and which provides good coloring and anitiwear properties of the anodized film.

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Tokyo, Japan

Yoshihiko Yasue