摘要:
A method for manufacturing a non-oriented electrical steel sheet including hot-rolling a steel slab containing 0-0.010% of C; at least one of Si and Al in a total amount of 0.03% to 0.5%; 0.5% or less of Mn; 0.10% or more to 0.26% or less of P; 0.015% or less of S; and 0.010% or less of N, on a mass percentage basis, the remainder being Fe and unavailable impurities, under conditions of a heating temperature in a single-phase austenite region and a coiling temperature of 650° C. or less; descaling the hot-rolled sheet to cold-roll the descaled sheet once or twice or more with an intermediate annealing sub-step therebetween; and then finish-annealing the cold-rolled sheet at a temperature of 700° C. or more in the single-phase ferrite region.
摘要:
The present invention relates to a semiprocessed nonoriented magnetic steel sheet which is used in iron cores of motors and transformers, finished to a final product by rolling having a reduction rate of 2 to 18% after final annealing by a manufacturer, and assures desired magnetic characteristics due to coarsening of crystal grains during strain-relief annealing after processing by a user. The excellent magnetic characteristics can be achieved by increasing lubrication during second cold rolling so as to satisfy the equation: e.sub.c .ltoreq.e.sub.s .ltoreq.1.18e.sub.c wherein e.sub.s represents a strain value at the surface layer of the steel sheet and e.sub.c represents a strain value at the central layer.
摘要:
In a process for manufacturing a coated steel sheet such as a coated electromagnetic steel sheet using a water-based coating liquid containing an organic resin, to perform steps subsequent to an annealing step continuously at high speed without causing appearance defects such as coating unevenness; to provide an electromagnetic steel sheet having an insulating film thereon, in which properties of the film are satisfactory, superior weldability and punchability can be obtained without deteriorating the space factor, and the satisfactory film properties can be maintained even if the electromagnetic steel sheet having the insulating film thereon is temper-rolled. A coating liquid is applied onto an untreated steel sheet. The applied liquid is heated on the side close to the steel sheet in such a manner that the time elapsed until the steel sheet temperature is increased to 100° C. after the application is completed is 10 seconds or less, thereby drying the coating liquid. The steel sheet temperature is further increased to a predetermined temperature, thereby forming a coating film. When insulating films for electromagnetic steel sheets are formed, the coating liquid preferably further contains a water based inorganic component.
摘要:
In a process for manufacturing a coated steel sheet such as a coated electromagnetic steel sheet using a water-based coating liquid containing an organic resin, to perform steps subsequent to an annealing step continuously at high speed without causing appearance defects such as coating unevenness; to provide an electromagnetic steel sheet having an insulating film thereon, in which properties of the film are satisfactory, superior weldability and punchability can be obtained without deteriorating the space factor, and the satisfactory film properties can be maintained even if the electromagnetic steel sheet having the insulating film thereon is temper-rolled. A coating liquid is applied onto an untreated steel sheet. The applied liquid is heated on the side close to the steel sheet in such a manner that the time elapsed until the steel sheet temperature is increased to 100° C. after the application is completed is 10 seconds or less, thereby drying the coating liquid. The steel sheet temperature is further increased to a predetermined temperature, thereby forming a coating film. When insulating films for electromagnetic steel sheets are formed, the coating liquid preferably further contains a water based inorganic component.
摘要:
Provided is a conjugated block copolymer that is capable of morphology control and that can achieve superior conversion efficiency. A π-electron conjugated block copolymer contiguously or non-contiguously bonding polymer block (A) involving a monomer unit having in a portion of a chemical structure at least one heteroaryl skeleton selected from a thiophene, a fluorine, a carbazole, a dibenzosilole and a dibenzogermole; and a polymer block (B) involving a monomer unit similarly having at least one heteroaryl skeleton; wherein the polymer block (A) comprises a homopolymer block of a monomer unit having a substituent RnA that is an alkoxy group or an alkyl group having 1-18 carbon atoms, and the polymer block (B) comprises a copolymer block of at least two different each other types of monomer units having substituent RnB selected from an alkoxy group or an alkyl group having 1-18 carbon atoms, which may be substituted with an alkoxy group, a halogen atom, a hydroxyl group, an amino group, a thiole group, a silyl group, an ester group, an aryl group, hetero aryl group.
摘要:
It is intended to provide noodles which require a highly shortened boiling time compared with non-grooved noodles and are still comparable to non-grooved noodles in appearance, taste, and texture after cooking. The above described problem is solved by providing grooved noodles in which a maximum diameter in the cross-section of a single noodle band is from 1.2 mm to 3.0 mm and the major outer shape thereof is an arc of a circle or ellipse, or the cross-section of a single noodle band has a rectangular or substantially rectangular shape, wherein: said noodles have a plurality of grooves formed along the longitudinal direction of said noodle band; and the total area of the section of said plurality of grooves in the cross-section of said noodle band is 20 to 50% of the area of the circle or ellipse formed by the major outer shape of the cross-section of said noodle band, or the rectangular or substantially rectangular shape of said cross-section.
摘要:
A silver halide photographic light-sensitive material is disclosed. The light-sensitive material comprises a support having thereon a silver halide emulsion layer, wherein the silver halide emulsion layer contains a hydrazine derivative, and at least one of the silver halide emulsion layer and another hydrophilic colloid layer provided on the emulsion layer-coated side of the support contains a latex comprising polymer particles stabilized with gelatin.
摘要:
Extruded elongate pasta is disclosed, each pasta strand having at least one groove formed longitudinally in the pasta strand in such a manner that the total cross sectional area of the groove is 2 to 25% of the cross sectional area of the pasta strand, and the groove in the pasta strand is substantially closed after the elongate pasta is boiled or dipped in hot water. A die structure for extruding the elongate pasta is also disclosed, the die structure being so arranged that a projection is projected toward the axis of a die hole from the inner surface of the die hole and that the coefficient of friction of the inner surface of the die hole is 0.4 or less. It is preferable that a tapered portion is formed on the upstream end of the projection. Further, an extruder for forming the elongate pastas which has a number of such die holes is also disclosed, in which projections of the die holes are projected perpendicularly to the aligning direction of the die holes.
摘要:
A rubber vibration isolator is used as a muffler hanger or muffler mount between a car body and a muffler to hang the latter from the former. The isolator includes a body made of rubber-like elastic material whose damping factor is high, two holes, upper and lower, formed in the center of the body of rubber-like elastic material, and a weight provided between the two holes and supported at opposite sides thereof by rubber-like elastic members. The rubber vibration isolator is advantageous in that coefficients of transfer of vibrations of both high and low frequencies, respectively, are lowered.
摘要:
Provided are: a conjugated block copolymer capable of increasing the amount of optical absorption by a photoelectric conversion active layer and controlling the morphology thereof and capable of achieving excellent photoelectric conversion efficiency; and a photoelectric conversion element comprising a composition including an electron accepting material using this kind of conjugated block polymer.A π-electron conjugated block copolymer comprises: a polymer block (A) and a polymer block (B), each of which involves a monomer unit having at least one fused π-conjugated skeleton including at least one thiophene ring in one part of the chemical structure thereof, the polymer block (A) and the polymer block (B) have different monomer units from each other.