摘要:
The present invention provides a precoated metal sheet excellent in the coating material adhesion and having little affect on environment. The precoated metal sheet of the invention is a precoated metal sheet comprising a metal or plated metal sheet having stacked on the surface thereof at least a coat layer and an organic resin layer, the metal or plated metal sheet mainly comprising zinc and aluminum and the coat layer mainly comprising one or both of a metal oxide and a metal hydroxide each using a metal species exclusive of chromium.
摘要:
The present invention provides a precoated metal sheet excellent in the coating material adhesion and having little affect on environment. The precoated metal sheet of the invention is a precoated metal sheet comprising a metal or plated metal sheet having stacked on the surface thereof at least a coat layer and an organic resin layer, the metal or plated metal sheet mainly comprising zinc and aluminum and the coat layer mainly comprising one or both of a metal oxide and a metal hydroxide each using a metal species exclusive of chromium.
摘要:
There is provided a substrate material, for an HDD suspension, which has excellent adhesion between a stainless steel foil and an insulating resin layer and maintains high etching performance by preventing metal components in the stainless steel from diffusing into the insulating resin layer. The substrate material for an HDD suspension of the invention is a material obtained by shaping a stainless steel foil, wherein, on the surface of the stainless steel foil and on at least one side thereof, there are laminated, at least, a covering layer made chiefly of either one or both of a metal oxide and a metal hydroxide with chromium excluded as the metal species, and an insulating resin layer.
摘要:
A lithium secondary battery comprising a positive electrode active material, a negative electrode active material, and a non-aqueous electrolyte is disclosed. The negative electrode active material is a powder of a silicon material containing boron and has a boron content in the range of 0.1-50 wt. %.
摘要:
This invention relates to a graphite material for negative electrode of lithium secondary battery. This graphite material is obtained by carbonizing the pulverized green coke to yield coke, adding one kind or more of boron or a compound thereof to the coke, graphitizing the resulting mixture and controlling the particle size of the product graphite. This graphite material for negative electrode is characterized by showing a tap density of 0.95 g/cm3 or more after tapping 20 times or 1.15 g/cm3 or more after tapping 300 times and a BET specific surface area of 1.5 m2/g or less. A lithium secondary battery made by the use of this graphite material for negative electrode has a large discharge capacity and suffers little loss during charging and discharging.
摘要翻译:本发明涉及锂二次电池用负极用石墨材料。 该石墨材料是通过将粉碎的焦炭碳化碳化而得到焦炭,向焦炭中加入一种或多种硼或其化合物,石墨化所得混合物并控制产物石墨的粒径。 这种用于负极的石墨材料的特征在于,在攻丝300次后敲打20次或1.15g / cm 3以上时的振实密度为0.95g / cm 3以上 倍,BET比表面积为1.5m 2 / g以下。 通过使用这种用于负极的石墨材料制成的锂二次电池具有大的放电容量,并且在充放电期间几乎没有损失。
摘要:
An inorganic-organic hybrid film-coated stainless steel foil comprising a stainless steel foil substrate having coated on one surface or both surfaces thereof an inorganic-organic hybrid film, wherein the inorganic-organic hybrid film comprises a skeleton formed of an inorganic three-dimensional network structure mainly comprising a siloxane bond, with at least one crosslinked oxygen of the skeleton being replaced by an organic group and/or a hydrogen atom; and an inorganic-organic hybrid film-coated stainless steel foil comprising a stainless steel foil having coated thereon a plurality of inorganic-organic hybrid films each mainly comprising a siloxane bond, wherein at least a part of Si constituting each inorganic-organic hybrid film is chemically bonded to one or both of an organic group and hydrogen, provided that the uppermost layer out of the plurality of inorganic-organic hybrid films may be an inorganic SiO2 film, and adjacent films of the plurality of inorganic-organic hybrid films (including the inorganic SiO2 film) differ in the composition from each other.
摘要:
An inorganic-organic hybrid film-coated stainless steel foil comprising a stainless steel foil substrate having coated on one surface or both surfaces thereof an inorganic-organic hybrid film, wherein the inorganic-organic hybrid film comprises a skeleton formed of an inorganic three-dimensional network structure mainly comprising a siloxane bond, with at least one crosslinked oxygen of the skeleton being replaced by an organic group and/or a hydrogen atom; and an inorganic-organic hybrid film-coated stainless steel foil comprising a stainless steel foil having coated thereon a plurality of inorganic-organic hybrid films each mainly comprising a siloxane bond, wherein at least a part of Si constituting each inorganic-organic hybrid film is chemically bonded to one or both of an organic group and hydrogen, provided that the uppermost layer out of the plurality of inorganic-organic hybrid films may be an inorganic SiO2 film, and adjacent films of the plurality of inorganic-organic hybrid films (including the inorganic SiO2 film) differ in the composition from each other.
摘要:
It is aimed at providing a heavy concrete, which does not require addition of a thickener such as methyl cellulose, which is less in segregation between a heavy aggregate and a cement paste, and which is high in flowability and excellent in construction ability. The present invention provides a heavy concrete comprising, at least, a cement, a heavy aggregate, and water, mixed with one another, characterized in that the heavy fine aggregate includes hot scarves brought about in a scarfing process of a steel slab surface. The present invention further provides the above-described heavy concrete characterized in that the heavy fine aggregate includes fine aggregate particles passing through a sieve having a nominal size of 0.15 mm, in an amount of 10% to 20% in mass percentage, and the heavy fine aggregate includes spherical particles each having a distortion irregularity of 3.3 or less as defined below, in an amount of 20% or more in the whole of particles having diameters between 50 μm inclusive and 5 mm inclusive in the heavy fine aggregate: [Distortion irregularity]=[Length of circumferential outline of particle]/[Diameter of true circle having the same area as the area of the particle providing the outline].
摘要:
It is aimed at providing a heavy concrete, which does not require addition of a thickener such as methyl cellulose, which is less in segregation between a heavy aggregate and a cement paste, and which is high in flowability and excellent in construction ability. The present invention provides a heavy concrete comprising, at least, a cement, a heavy aggregate, and water, mixed with one another, characterized in that the heavy fine aggregate includes hot scarves brought about in a scarfing process of a steel slab surface. The present invention further provides the above-described heavy concrete characterized in that the heavy fine aggregate includes fine aggregate particles passing through a sieve having a nominal size of 0.15 mm, in an amount of 10% to 20% in mass percentage, and the heavy fine aggregate includes spherical particles each having a distortion irregularity of 3.3 or less as defined below, in an amount of 20% or more in the whole of particles having diameters between 50 μm inclusive and 5 mm inclusive in the heavy fine aggregate: [Distortion irregularity]=[Length of circumferential outline of particle]/[Diameter of true circle having the same area as the area of the particle providing the outline].
摘要:
A connecting structure for piping members facilitates connection thereof and ensures prevention of liquid leakage. A first piping member includes a first channel, and at least one first joint surface in which at least one first opening communicating with the first channel and a first annular groove are provided. A second piping member includes a second channel, and at least one second joint surface in which at least one second opening communicating with the second channel and a second annular groove are provided. A sleeve for connecting the first and second piping members includes a central bore. The sleeve includes a pair of inserting sections and a partition therebetween. The inserting sections are thinner radially as compared to the partition and are configured to accommodate at least one elastic body which provides a seal when the inserting sections are press-inserted into the first and second annular grooves.