ScienceON 검색
ScienceON '특허' 검색
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PRODUCTION OF ENAMEL STEEL PLATE / SUMITOMO METAL IND LTD (PURPOSE) To prevent development of blow hole in a slab and pin hole in an enamel by using CC powder having limited C content in molten steel having the specified compositions and executing continuous casting under setting of drawing speed at thesatisfying range for the specified condition.(CONSTITUTION) When the molten low carbon steel, having compositions, such as ≤0.006wt% C, 0.2≤Mn≤0.5wt%, 0.005≤P≤0.025wt%, 0.005≤S≤0.025wt%, 0.020≤Cu≤0.040wt%, 1.0≤Cu%/P%≤4.0, 0.5≤P%/S%≤3.0, 200≤O≤500ppm,N≤40ppm, Al≤0.005wt%, is cast continuously, CC powder having C≤1.5wt% is used. Further, the drawing speed is set in the satisfying range for the conditional inequality, under condition of ≥0.8m/min for it. Wherein, in the inequality, V isthe drawing speed m/min under continuous casting operation and C is wt% C in the CC powder. |
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NONAQUEOUS ELECTROLYTE SECONDARY BATTERY POSITIVE ELECTRODE AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY / Panasonic Corporation This nonaqueous electrolyte secondary battery positive electrode comprises a positive electrode collector which is mainly composed of Ti, and a positive electrode active material layer which is disposed on the positive electrode collector, wherein the positive electrode active material layer includes a positive electrode active material and a binder and has a density of 3 g/cc or more, the positive electrode active material has an average particle size in a range of 2 to 20 μm, the positive electrode collector has a thickness in a range of 1 to 8 μm, and the content of the binder in the positive electrode active material layer satisfies the formula, y=0.006x2+0.0262x+a (y is the content (mass %) of the binder, x is the thickness of the positive electrode collector, and a is a real number from 0.3 to 2.2). |
| 3 |
NONAQUEOUS ELECTROLYTE SECONDARY BATTERY POSITIVE ELECTRODE AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY / PANASONIC CORPORATION This nonaqueous electrolyte secondary battery positive electrode comprises a positive electrode collector which is mainly composed of Ti, and a positive electrode active material layer which is disposed on the positive electrode collector, wherein the positive electrode active material layer includes a positive electrode active material and a binder and has a density of 3 g/cc or more, the positive electrode active material has an average particle size in a range of 2 to 20 μm, the positive electrode collector has a thickness in a range of 1 to 8 μm, and the content of the binder in the positive electrode active material layer satisfies the formula, y=0.006x+0.0262x+a (y is the content (mass%) of the binder, x is the thickness of the positive electrode collector, and a is a real number from 0.3 to 2.2). |
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AL ALLOY FOR CASTING AND ENGINE INTAKE PARTS FOR AUTOMOBILE / HITACHI METALS LTD (PURPOSE) To prevent the reduction of the dispersing effect of shrinkage cavities in an Al alloy and to prevent the leakage of air tight, in an Al-Si-Mg series alloy mixed with Sr, by regulating the value of Bi relatively reducing the amt. of Sr to specified one or below. (CONSTITUTION) This Al alloy for casting is a one in which, by weight, ≤0.006% Bi, 0.005 to 0.08% Sr and 0.2 to 0.4cc/100g H2 gas are contained in an Al alloy contg. 4.0 to 10.0% Si, ≤0.5% Mg and ≤0.8% Fe. As for Bi, because it is combined with Sr in molten metal into an allay and reduces the relative amt. of Sr which is a nucleus for dispersing shrinkage cavities as microshrinkages to increase the size of the microshrinkages, its content is limited to the above one. As for the amt. of an H2 gas, in the case of less than the lower limit, the effect of dispersing shrinkage cavities as microshrinkages is not shown; and in the case of more than the upper limit, the remarkable improvement of the above effect is not shown, and conversely, the size of pinholes and microshrinkages is increased to deteriorate the strength of castings. |
ScienceON '논문' 검색
MOREScienceON '보고서' 검색
MORE| No | 제목 / 내용 |
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| 1 |
지하실내 공기 질 및 석면함유물질 평가와 관리방안에 대한 연구 정문호 , 서울대학교 , 2003 |