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| 20100025283 | Laminated steel sheet for two-piece can body, two-piece can body made of laminated steel sheet, and method of producing the two-piece can body - Provided is a laminated steel sheet for a can body of a two-piece can, containing a copolyethylene terephthalate resin layer containing at least one 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° C. to 140° C. on at least one side of a steel sheet; and satisfying the following relationships: r | 02-04-2010 |
| 20110076177 | HIGH-STRENGTH STEEL SHEET FOR CANS AND METHOD FOR MANUFACTURING THE SAME - A steel sheet for cans that has a yield stress of at least 500 Mpa after coating and baking and a method for manufacturing the steel sheet for cans are provided. The steel sheet for cans contains, on the basis of mass percent, C: more than 0.02% but 0.10% or less, Si: 0.10% or less, Mn: 1.5% or less, P: 0.20% or less, S: 0.20% or less, Al: 0.10% or less, N: 0.0120% to 0.0250%, dissolved N being 0.0100% or more, and a remainder of Fe and incidental impurities. A high-strength material can be obtained by maintaining the absolute quantity of dissolved N at a certain value or more and performing hardening by quench aging and strain aging, for example, in a printing process, a film lamination process, or a drying and baking process performed before can manufacturing. In the manufacture, hot rolling is performed at a slab extraction temperature of 1200° C. or more and a finish rolling temperature of (Ar3 transformation temperature—30)° C. or more, and coiling is performed at 650° C. or less. | 03-31-2011 |
| 20110108168 | HIGH-STRENGTH STEEL SHEET FOR CAN AND METHOD FOR MANUFACTURING SAME - A steel sheet for a can has a yield strength of 450 MPa or more, and the occurrence of cracking at a slab corner being prevented in a continuous casting process. The steel sheet contains 0.03%-0.10% C, 0.01%-0.5% Si, 0.001%-0.100% P, 0.001%-0.020% S, 0.01%-0.10% Al, 0.005%-0.012% N, and the balance being Fe and incidental impurities, in which when Mnf=Mn [% by mass]−1.71×S [% by mass], Mnf is in the range of 0.3 to 0.6. The steel sheet has microstructures that do not contain a pearlite microstructure. | 05-12-2011 |
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| 20100000632 | LAMINATE STEEL SHEET FOR TWO-PIECE CAN, METHOD FOR PRODUCTION OF TWO-PIECE CAN, AND TWO-PIECE LAMINATE CAN - A laminated steel sheet for a two-piece can body with a high strain level satisfying the following formulae, the polyester resin layer composing the laminated steel sheet having a center line surface roughness (Ra) of 0.2 μm to 1.8 μm: | 01-07-2010 |
| 20100096279 | PROCESS FOR MANUFACTURING DRAWN CAN FOR AEROSOL AND DRAWN CAN FOR AEROSOL - A laminated steel sheet used as a raw material has a tensile strength TS after forming at an equivalent strain εeq of 1.6 is 800 MPa or less and satisfies 0.25≦tb/to where tb is a sheet thickness at a fracture surface after fracture and to is a sheet thickness before the fracture. In forming the laminated steel sheets, forming is conducted so as to satisfy the relationships below: | 04-22-2010 |
| 20100116832 | STEEL SHEET FOR CAN AND METHOD FOR MANUFACTURING THE SAME - A steel sheet undergone precipitation strengthening and refinement in crystal grain size by containing at least one element of 0.005% to 0.05% of Nb, 0.005% to 0.05% of Ti, and 0.0005% to 0.005% of B as a chemical composition is produced through continuous annealing. A steel containing at least one element of Nb, Ti, and B is hot rolled, cooled at a cooling rate of 40° C./s or less, and coiled at 550° C. or higher to facilitate precipitation of cementite after recrystallization annealing. As a result, a steel sheet for a can having a tensile strength of 450 to 550 MPa, a total elongation of 20% or more, and a yield elongation of 5% or less is produced. | 05-13-2010 |
| 20100310824 | LAMINATED METAL SHEET FOR TWO-PIECE CAN BODY AND TWO-PIECE LAMINATED CAN BODY - 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° C., and the surface of the polyester resin film layer having a center line surface roughness (Ra) of 0.2 to 1.8 μm. 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. | 12-09-2010 |
| 20110067798 | DI FORMING WATER-BASED COLLANT OF LAMINATED METAL SHEET AND METHOD FOR DI FORMING LAMINATED METAL SHEET - 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. | 03-24-2011 |
| 20110114128 | IRONING METHOD AND IRONING APPARATUS - An ironing apparatus includes an ironing die and an ironing punch, an injection port for injecting gas or liquid to the metal plate at a high pressure to remove substance adhered to the metal plate therefrom, a suction port for sucking the adhered substance removed from the metal plate, and a protrusion mount portion with a protrusion for preventing dispersion of the gas or the liquid. An ironing method for ironing the metal plate having the single surface or both surfaces coated with the organic resin film includes the steps of injecting the gas or the liquid from the injection port to the metal plate at the high pressure to remove the adhered substance from the metal plate, and sucking and collecting the adhered substance removed from the metal plate from the suction port. The adhered substance such as the hair may be removed by the aforementioned invention. | 05-19-2011 |
| 20110272066 | MANUFACTURING METHOD OF STEEL SHEET FOR CANS - A method provides a slab by continuous casting of a steel having a component composition of, in mass %, C: 0.005% or less, Mn: 0.05 to 0.5%, Al: 0.01 to 0.10%, N: 0.0010 to 0.0070%, B: 0.15×N to 0.75×N (0.15 to 0.75 in terms of B/N), and one or both of Nb: 4×C to 20×C (4 to 20 in terms of Nb/C) and Ti: 2×C to 10×C (2 to 10 in terms of Ti/C), and the balance of Fe and inevitable impurity elements; rough rolling the slab; finish rolling the rough-rolled slab wherein 5% or more and less than 50% of the total amount of rolling reduction in the finish rolling is hot-rolled at a temperature lower than the Ar | 11-10-2011 |
| 20120000340 | METHOD FOR MANUFACTURING EASY OPEN END - A method of manufacturing an easy open end includes the steps of using a laminated steel sheet with resin films formed on both surfaces of the laminated steel sheet, and forming a panel structure and a score. A score die used for forming the score includes a scoring edge having a cross section in which a tip is a curve and two sides with the tip interposed therebetween are tangent to the curve. The tip is the curve having a curvature radius ranging from 0.2 to 0.4 mm, and the two sides have elevation angles θ in a range of 0.3≦tan θ≦1.0 to an end surface. The panel structure is formed by a motion that is synchronous with a motion in which the score die is pressed to a surface of the laminated steel sheet during the formation of the score. | 01-05-2012 |
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| 20090041964 | LAMINATED STEEL SHEET FOR USE IN TWO-PIECE CAN AND TWO-PIECE CAN FORMED OF LAMINATED STEEL SHEET - A laminated steel sheet for use in the manufacture of a two-piece can body that satisfies the following three formulae includes a polyester resin layer on at least one side of the steel sheet, the polyester resin layer containing 3% to 30% by volume of dispersed incompatible subphase resin having a glass transition point of 5° C. or less and a cross section aspect ratio of 0.5 or less: | 02-12-2009 |
| 20090061133 | TWO-PIECE CAN, METHOD FOR MANUFACTURING SAME, AND STEEL SHEET THEREFOR - A two-piece can has sufficient can strength and excellent corrosion resistance and to provide a method for forming the two-piece can easily without generating cracks. The two-piece can uses a laminated steel sheet as the base material and having a can body in a shape of cylinder integrated with bottom. The can body is treated by diametral reduction to become the diameter of opening side thereof smaller than the diameter of can body, and to satisfy the formulae (1) and (2). There is formed a bead at the opening side of the can body, being curled outward from the can at the tip of the opening in a shape of circular arc or vertically long ellipse in cross section, and is further formed a bead having a cross sectional shape of further curled at the tip thereof, an upper bead, and a lower bead: | 03-05-2009 |
| 20090104390 | LAMINATED STEEL SHEET FOR TWO-PIECE CAN, METHOD FOR MANUFACTURING TWO-PIECE CAN, AND TWO-PIECE LAMINATED CAN - The laminated steel sheet for two-piece can satisfies the relation of the height h of the final formed body, the maximum radius r thereof, the minimum radius d thereof, with the radius R of circular disk, before forming, having the same weight to that of the final formed body, as [0.1≦d/R≦0.25] and [1.5≦h/(R−r)≦4]. The laminated steel sheet has a polyester resin layer prepared by polycondensation of a dicarboxylic acid component and a diol component. The dicarboxylic component has terephthalic acid as the main ingredient, and the diol component has ethylene glycol and/or butylene glycol as the main ingredient. The quantity of copolymerizing ingredients is ranging from 8 to 16% by mole. The plane orientation factor of the resin is 0.06 or less. | 04-23-2009 |
| 20090127272 | Can body for laminated steel sheet two- piece can and method for manufacturing can body - A method for manufacturing a can body for a two-piece can by multistage forming of a circular laminated steel sheet having a radius of R | 05-21-2009 |
| 20090217729 | Two-Piece Can, Method for Manufacturing Same, and Steel Sheet Therefor - 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) | 09-03-2009 |
| 20090218250 | METHOD FOR PRODUCING TWO-PIECE CAN AND TWO-PIECE LAMINATED CAN - 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≦d/R≦0.25 and 1.5≦h/(R−r)≦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° C. higher than the melting point. | 09-03-2009 |
| 20110168303 | HIGH TENSILE STRENGTH STEEL FOR CONTAINER AND PRODUCING METHOD OF THE SAME - A steel sheet for containers that has a hardness of 500 MPa or more and superior workability and a method for producing the steel sheet are provided. A steel containing, in percent by mass, 0.01% to 0.05% carbon, 0.04% or less silicon, 0.1% to 1.2% manganese, 0.10% or less sulfur, 0.001% to 0.100% aluminum, 0.10% or less nitrogen, and 0.0020% to 0.100% phosphorus, the balance being iron and incidental impurities, is subjected to hot rolling at a finishing temperature of (Ar | 07-14-2011 |
