摘要:
A magnetic head device includes a magnetic head for magnetically recording information on and/or reproducing information from a magnetic tape, a first pair of tape guides, each of which is formed as a single part and fixed to side surfaces on both sides of the magnetic head in a magnetic tape running direction, and a guide unit including (i) a second pair of tape guides which are independent of the first pair of tape guides and are arranged on the outside of the first pair of tape guides along the magnetic tape running direction and (ii) an opening portion to insert the magnetic head to which the first pair of tape guides is fixed in an almost center portion in the magnetic tape running direction. The guide unit and the second pair of tape guides are formed as one unit, and the magnetic head, in which an azimuth adjustment was performed in the opening portion and to which the first pair of tape guides is fixed, is fixed to the opening portion.
摘要:
There is provided a curable fluorine-containing polymer composition which is quickly cured at relatively low temperatures by hydrosilylation reaction and provides a coating film which has high hardness, excellent solvent resistance and flexibility. The curable fluorine-containing polymer composition comprises a fluorine-containing polymer comprising a fluorinated ethylenic monomer unit and a non-fluorinated ethylenic monomer unit, in which a part or the whole of the non-fluorinated ethylenic monomer units is a unit represented by the formula: wherein R1 is hydrogen or methyl; R2 is a hydrocarbon group having ethylenic C═C; X is —C(O)NH— or —C(O)—; R3 is —O—, —O[CH(R4)]mO—, —(CH2)mO—, —OC(O)—(CH2)mO— or —(CH2)mOC(O)—(CH2)nO—, where R4 is —H, —OH, —CH2OH or —O—X—R2, a siloxane compound having hydrogen atom bonded to silicon atom, and a catalyst for hydrosilylation reaction.
摘要翻译:提供一种通过氢化硅烷化反应在相对低的温度下快速固化的可固化含氟聚合物组合物,并提供具有高硬度,优异的耐溶剂性和柔性的涂膜。 可固化含氟聚合物组合物包含含有氟化乙烯性单体单元和非氟化乙烯性单体单元的含氟聚合物,其中一部分或全部未氟化烯属单体单元为式 其中R1是氢或甲基; R2是具有烯属C = C的烃基; X是-C(O)NH-或-C(O) - ; R 3是-O-,-O [CH(R 4)] m O - , - (CH 2)m O - , - OC(O) - (CH 2)m O-或 - (CH 2)mOC(O) - (CH 2) 其中R4是-H,-OH,-CH2OH或-O-X-R2,具有与硅原子键合的氢原子的硅氧烷化合物和氢化硅烷化反应的催化剂。
摘要:
A molding method for forming an impeller, includes a mold clamping process having a first mold for forming one side of blades, a second mold firmly clamped with the first mold, and a core arranged at the first mold relative to the blades, the mold clamping process clamping the first mold to the second mold in a state where the core is arranged between the first mold and the second mold, an injecting process injecting resin in a cavity obtained by the mold clamping process, and a mold removing process including the steps of releasing at least the first mold from the clamped state obtained by the mold clamping process to generate an opened portion in the first mold after the resin is hardened, rotating the core about a rotational axis toward the opened portion of the first mold, and separating the core from the resin-molded impeller.
摘要:
A porous hollow fiber membrane which has high blocking performance and high water permeability suitable for filtration and the like and exhibits excellent strength, and a process for stably producing the porous hollow fiber membrane are disclosed. The process utilizes a hollow fiber molding nozzle having two or more circular discharge ports which are disposed concentrically. Multilayer melt-extrusion is performed by discharging molten mixtures which include a thermoplastic resin and an organic liquid and differ in composition from the adjacent discharge ports. The resulting product is cooled to solidify to obtain a hollow fiber. The organic liquid is then removed from the hollow fiber by extraction to produce a porous hollow fiber membrane. The molten mixture discharged from at least one circular discharge port includes an inorganic fine powder in addition to the thermoplastic resin and the organic liquid. The inorganic fine powder is removed by extraction after cooling in addition to the organic liquid.
摘要:
A switching element 100 includes an insulating substrate 10, a first electrode 20 provided on the insulating substrate 10, a second electrode 30 provided on the insulating substrate 10, and an interelectrode gap 40 provided between the first electrode 20 and the second electrode 30, a distance G between the first electrode 20 and the second electrode 30 being 0 nm
摘要:
A two-terminal resistance switching element, wherein two silicon films each doped with an impurity are arranged with a gap width in the order of nanometers. The gap width is in the range of from 0.1 nm to 100 nm. A semiconductor device can be obtained by providing the two-terminal resistance switching element in a memory, a storage device or other device.
摘要:
A projector includes: spatial light modulation devices; and a cooling duct configured to flow a cooling air for sequentially cooling the spatial light modulation devices, the cooling duct has a first flow path formed by portions including the light entrance surface of at least one of the spatial light modulation devices for the respective color lights, a second flow path formed by portions including the light exit surface of the corresponding spatial light modulation device, and a junction area where the cooling air flowing through the first flow path and the cooling air flowing through the second flow path join each other, and the junction area is disposed at a downstream position of the cooling air with respect to the spatial light modulation device provided for a predetermined color light whose light amount is the maximum in the respective color lights that enter the light entrance surface.
摘要:
A high-strength hot-rolled steel sheet has a tensile strength (TS) of 540 to 780 MPa, only small variations in strength, and excellent uniformity in strength using a general-purpose Ti-containing steel sheet, which is inexpensive. The high-strength hot-rolled steel sheet includes, on a mass percent basis, 0.05%-0.12% C, 0.5% or less Si, 0.8%-1.8% Mn, 0.030% or less P, 0.01% or less S, 0.005%-0.1% Al, 0.01% or less N, 0.030%-0.080% Ti, and the balance being Fe and incidental impurities. The microstructure have a bainitic ferrite fraction of 70% or more, and the amount of Ti present in a precipitate having a size of less than 20 nm is 50% or more of the value of Ti* calculated using formula (1): Ti*=[Ti]−48/14×[N] (1) where [Ti] and [N] represent a Ti content (percent by mass) and a N content (percent by mass), respectively, of the steel sheet.
摘要:
The present invention provides a method of producing a fluoropolymer aqueous dispersion by which the fluorine-containing emulsifier contained in the fluoropolymer aqueous dispersion as obtained after polymerization can be efficiently removed as well as a fluoropolymer aqueous dispersion low in fluorine-containing emulsifier concentration. The present invention is a method of producing a fluoropolymer aqueous dispersion which comprises carrying out a concentration treatment comprising a concentration operation of a pretreatment fluoropolymer aqueous dispersion, wherein the pretreatment fluoropolymer aqueous dispersion is obtained by carrying out a polymerization in an aqueous medium in the presence of a fluorine-containing surfactant (A), the fluorine-containing surfactant (A) is a fluorine-containing surfactant having an octanol/water partition coefficient of 1.5 to 3.5.
摘要:
There is provided a curable polymer composition being curable quickly to form a cured article having excellent adhesion and followability to a substrate and at least comprising (A) an acrylic copolymer having a hydrogen atom bonded to a silicon atom, (B) a compound having at least two aliphatic unsaturated bonds in one molecule thereof, (C) a fluoroolefin copolymer comprising vinylidene fluoride as main component, and (D) a catalyst for hydrosilylation reaction.