Abstract: 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 Ar3 transformation point; winding the hot-rolled steel sheet at a winding temperature of 640 to 750° C.; pickling the coiled steel sheet; cold rolling the pickled steel sheet at a rolling reduction rate of 88 to 96%; and annealing the cold-rolled steel sheet in a temperature range of higher than 400° C. to a temperature that is 20° C. lower than the recrystallization temperature.

Abstract: A colored laminated metal plate for containers includes a metal plate having one or both surfaces coated with a film for lamination in which a colored adhesive layer is coated to a polyester resin film. The colored adhesive layer contains a polyester resin as a main component and further contains an etherified amino resin, an epoxy resin, a strong acid compound, and a coloring agent. The colored laminated steel sheet is excellent in deep drawability, adhesion after forming, rust resistance of a damaged portion, and so on. When the steel sheet is applied to manufacturing of a container such as a can, retort whitening of the laminate film hardly occurs, and the design properties of appearance can be maintained.

Abstract: A tinned steel sheet includes an Sn-containing plating layer disposed on at least one surface of a steel sheet and in which mass per unit area of Sn is 0.05 to 20 g/m2; a first chemical conversion coating disposed on the Sn-containing plating layer and contains P and Sn, and in which mass per unit area of P is 0.3 to 10 mg/m2; a second chemical conversion coating disposed on the first chemical conversion coating and contains P and Al, and in which mass per unit area of P is 1.2 to 10 mg/m2 and mass per unit area of Al is 0.24 to 8.7 mg/m2; and a silane coupling agent-treating layer formed with the silane coupling agent disposed on the second chemical conversion coating and has a mass per unit area of Si of 0.10 to 100 mg/m2.

Abstract: A tin-plated steel sheet includes a steel sheet; an Sn-containing plating layer in which the mass per unit area of Sn is 0.05 to 20 g/m2 disposed on at least one surface of the steel sheet; a first chemical conversion coating which contains P and Sn, in which the mass per unit area of P is 0.3 to 10 mg/m2, disposed on the Sn-containing plating layer; and a second chemical conversion coating which contains P and Al, in which the mass per unit area of P is 1.2 to 10 mg/m2 and the mass per unit area of Al is 0.24 to 8.7 mg/m2, disposed on the first chemical conversion coating.

Abstract: 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.

Abstract: 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.

Abstract: A method for producing a tinned steel sheet includes forming an Sn-containing plating layer on at least one surface of a steel sheet such that mass per unit area of Sn is 0.05 to 20 g/m2, immersing the steel sheet in a chemical conversion solution which contains greater than 18 to 200 g/L or less of aluminum phosphate monobasic and which has a pH of 1.5 to 2.4 or cathodically electrolyzing the steel sheet at a current density of 10 A/dm2 or less in the chemical conversion solution, forming a chemical conversion coating in such a manner that the steel sheet is washed with water and then dried, and forming a product of a reaction with a silane coupling agent such that the mass per unit area is 0.10 to 100 mg/m2 in terms of Si.

Abstract: A chemical conversion solution contains greater than 18 to 200 g/L or less of aluminum phosphate monobasic and has a pH of 1.5 to 2.4. A method for producing a tinned steel sheet includes forming an Sn-containing plating layer on at least one surface of a steel sheet such that the mass per unit area of Sn is 0.05 to 20 g/m2, immersing the steel sheet in the chemical conversion solution or cathodically electrolyzing the steel sheet at a current density of 10 A/dm2 or less in the chemical conversion solution; and drying the steel sheet to form a chemical conversion coating.

Abstract: 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.

Abstract: 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.

Abstract: 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 ?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.

Abstract: It is an object to provide a surface-treated steel sheet which contains no Cr, which is excellent in wet resin adhesion, and which can be used as an alternative to a conventional tin-free steel sheet and to provide a resin-coated steel sheet produced by coating the surface-treated steel sheet with resin. A surface-treated steel sheet including an adhesive layer which is disposed on at least one surface of the steel sheet and which contains Ti and at least one selected from the group consisting of Co, Fe, Ni, V, Cu, Mn, and Zn, the ratio of the total amount of Co, Fe, Ni, V, Cu, Mn, and Zn to the amount of Ti contained therein being 0.01 to ten on a mass basis, and a method for producing the surface-treated steel sheet.

Abstract: A open can end of laminated steel sheet has a score formed thereon by a scoring die. The scoring die has a scoring edge having a sectional shape of an inverted triangle. The scoring edge includes a tip formed of a curve having a radius of curvature of 0.2 mm or more and 0.4 mm or less. Two sides sandwiching the tip are tangent to the curve. A function tan ? of an angle of elevation ? of each of the sides with respect to a surface of the can end is 0.3 or more and 1.0 or less. The resultant a can end being an easy open can end.

Abstract: During Low return control, in which a speed ratio determined by a contact radius of a V-belt (4) with a non-rotating primary pulley (2) and a non-rotating secondary pulley (3) is shifted toward lowest speed ratio while the vehicle is stationary, an estimated speed ratio (ic) is calculated on the basis of a secondary pulley pressure (Psec). When a start request is issued to the vehicle while Low return control is underway, a primary pulley pressure (Ppri) and the secondary pulley pressure (Psec) are controlled on the basis of the estimated speed ratio (ic).

Abstract: 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.

Abstract: A laminated steel sheet used as a raw material has a tensile strength TS after forming at an equivalent strain ?eq 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: 1.5?h/(R?r), 2.8?R/r1, and 1.1?r2/r1 where h: a height from a can bottom to an opening edge portion; r: an outer diameter of a can body; R: a radius of a circular blank before forming having a weight equivalent to a weight of a final formed can body; r1: an outer radius of an opening edge portion; and r2: an outer radius of a bead portion.

Abstract: The resin-coated metal sheet is composed of: a metal sheet; a lower resin layer containing a hydrophilic copolyester, formed on at least one side of the metal sheet; and an upper resin layer containing a polyester containing a diol component composed of a diol derivative of 1 to 10% by mole of alicyclic compound and 99 to 90% by mole of ethylene glycol, and a dicarboxylic acid component consisting of terephthalic acid, formed on the lower resin layer. The sum of cyclic trimer of alkylene terephthalate existing in the upper resin layer and the lower resin layer is 0.9% or less by mass. Since the manufacture of food cans using the resin-coated metal sheet does not induce white haze phenomenon and retort blushing phenomenon on outer surface of the can even after retorting, the decorative appearance on outer surface of the can is not deteriorated.

Abstract: An easy-open end which comprises a steel sheet and formed on at least one side thereof an about 10-30 mum-thick coating film of a polyester resin having a 50% crystallization time of about 5 minutes or shorter and a coefficient of planar orientation of about 0.04 or lower and which has a groove for cutting which has a cross section having a radius of curvature of about 0.1 to 1 mm; and a laminated steel sheet for use in the easy-open end. This easy-open end can combine suitability for opening and no need of repair even when the residual score thickness is small.

Abstract: 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: r1?r, 0.1?r1/R?0.25, and 1.5?h/(R?r)?4, wherein r1 represents 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 laminated steel sheet is suitable for a can body of a two-piece can having a high strain level, and can provide a two-piece can body which is free from delamination and breakage of the resin layer.

Abstract: 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 ?m to 1.8 ?m: r1?r, 0.1?r1/R?0.25, and 1.5?h/(R?r)?4 wherein h is the height of the two-piece can body, r is the maximum radius, r1 is the minimum radius, and R is the radius of the circular laminated steel sheet before forming having the same weight as the can body.