摘要:
A third insulating layer is formed in a periphery region of a substrate over a first surface (main surface) of the substrate so as to straddle a second semiconductor layer closest to a guard ring layer and a second semiconductor layer closest to the second semiconductor layer. In other words, the third insulating layer is formed to cover a portion of the first semiconductor layer, which is exposed to the first surface (main surface) of the substrate and which is between the second semiconductor layers. Thereby, the third insulating layer electrically insulates the metal layer from the portion of the first semiconductor layer, which is exposed to the first surface (main surface) of the substrate and which is between the second semiconductor layers.
摘要:
A steel for welding includes steel components in which PCTOD is less than or equal to 0.065%, CeqH is less than or equal to 0.225%, FB is greater than or equal to 0.0003%, and Bp is 0.09% to 0.30%. In the steel for welding, in a thickness center portion of a cross-section in a thickness direction, the number of oxide particles having an equivalent circle diameter of 2 μm or greater is less than or equal to 20 particles/mm2 and the number of Ti oxides having an equivalent circle diameter of 0.05 μm to 0.5 μm is 1.0×103 particles/mm2 to 1.0×105 particles/mm2.
摘要翻译:用于焊接的钢包括PCTOD小于或等于0.065%的钢组分,CeqH小于或等于0.225%,FB大于或等于0.0003%,Bp为0.09%至0.30%。 在焊接用钢中,在厚度方向的横截面的厚度中心部分中,当量圆直径为2μm以上的氧化物粒子的个数为20个/ mm 2以下, 当量圆直径为0.05〜0.5μm的Ti氧化物为1.0×10 3粒子/ mm 2〜1.0×10 5粒子/ mm 2。
摘要:
The present invention provides steel plate for line pipe excellent in strength and ductility and a method of production of the same. The steel plate has a steel composition containing, by mass %, C: 0.04 to 0.15%, Si: 0.05 to 0.60%, Mn: 0.80 to 1.80%, P: 0.020% or less, S: 0.010% or less, Nb: 0.01 to 0.08%, and Al: 0.003 to 0.08%, having a balance of iron and unavoidable impurities, and having a value of Ceq shown by the following formula of 0.48 or less, comprised of a mixed structure of ferrite and pearlite or ferrite and pearlite partially containing bainite in which a ferrite percentage is 60 to 95%, having a yield strength of 450 MPa or more, and having an amount of hydrogen contained in the steel of 0.1 ppm or less: Ceq=C+Mn/6+(Cu+Ni)/15+(Cr+Mo+Nb+V+Ti)/5+5B .
摘要翻译:本发明提供强度和延展性优异的管线用钢板及其制造方法。 该钢板的组成为:以质量%计含有C:0.04〜0.15%,Si:0.05〜0.60%,Mn:0.80〜1.80%,P:0.020%以下,S:0.010%以下,Nb: 0.01〜0.08%,Al:0.003〜0.08%,余量由铁和不可避免的杂质构成,并且由铁氧体和珠光体的混合结构构成的下述通式1所示的Ceq值为0.48以下 或部分含有铁素体百分比为60〜95%的贝氏体的铁素体和珠光体,屈服强度为450MPa以上,钢中含有的氢的量为0.1ppm以下:Ceq = C + Mn / 6+(Cu + Ni)/ 15 +(Cr + Mo + Nb + V + Ti)/ 5 + 5B 1。
摘要:
The present invention provides a high strength steel having unprecedentedly superior CTOD (fracture toughness) properties satisfying not only the CTOD properties of the FL zone at −60° C., but also the CTOD properties of the ICHAZ zone in small and medium heat input multilayer welding, etc.; and a method of production of the same. The steel of the present invention is steel superior in CTOD properties of the heat-affected zone containing, by mass %, C: 0.015 to 0.045%, Si: 0.05 to 0.2%, Mn: 1.5 to 2.0%, Cu: 0.25 to 0.5%, Ni: 0.7 to 1.5%, P: 0.008% or less, S: 0.005% or less, Al: 0.004% or less, Ti: 0.005 to 0.015%, Nb: 0.005% or less, O: 0.0015 to 0.0035%, and N: 0.002 to 0.006%, PCTOD: 0.065 or less, CeqH: 0.235 or less and the balance consisting of Fe and unavoidable impurities.
摘要:
An object of the present invention is to provide an industrially advantageous process for preparing a benzaldehyde compound from a benzyl alcohol compound with high yield.The present invention relates to a process for preparing an aromatic aldehyde compound represented by the formula (2); which comprises reacting an aromatic methyl alcohol compound represented by the formula (1); and a peroxide under a pH value of a reaction solution being pH 0.01 or higher and less than 10 in the presence of at least one metallic compound selected from a molybdenum compound and a tungsten compound, a quaternary ammonium salt and an organic phosphonium salt.
摘要:
A steel for a welded structure includes the following composition: by mass %, C at a C content [C] of 0.015 to 0.045%; Si at a Si content [Si] of 0.05 to 0.20%; Mn at a Mn content [Mn] of 1.5 to 2.0%; Ni at a Ni content [Ni] of 0.10 to 1.50%; Ti at a Ti content [Ti] of 0.005 to 0.015%; O at an O content [O] of 0.0015 to 0.0035%; and N at a N content [N] of 0.002 to 0.006%, and a balance composed of Fe and unavoidable impurities. In the steel for a welded structure, the P content [P] is limited to 0.008% or less, the S content [S] is limited to 0.005% or less, the Al content [Al] is limited to 0.004% or less, the Nb content [Nb] is limited to 0.005% or less, the Cu content [Cu] is limited to 0.24% or less, the V content [V] is limited to 0.020% or less, and a steel composition parameter PCTOD is 0.065% or less, and a steel composition hardness parameter CeqH is 0.235% or less.
摘要:
A method for producing a synthesis gas containing carbon monoxide and hydrogen from a source gas containing light hydrocarbons, includes the steps of: performing low temperature steam reforming by adding steam to the source gas and converting hydrocarbons of carbon numbers of 2 or higher in the source gas to methane; and performing a catalytic partial oxidation by adding oxygen after the low temperature steam reforming.
摘要:
The present invention provides a fire-resistant steel material superior in weld heat affected zone reheat embrittlement resistance and low temperature toughness when welded by large heat input and exposed to fire and a method of production of the same, that is, a material containing C: 0.012 to 0.050%, Mn: 0.80 to 2.00%, Cr: 0.80 to 1.90%, and Nb: 0.01 to less than 0.05%, restricting Cu to 0.10% or less, containing suitable quantities of Si, N, Ti, and Al, restricting the contents of Mo, B, P, S, and O, and having a balance of Fe and unavoidable impurities, having contents of C, Mn, Cr, Nb, and Cu satisfying −1200C−20Mn+30Cr−330Nb−120Cu≧−80, having a steel structure as observed by an optical microscope of an area fraction of 80% or more of a ferrite phase, and having a balance of the steel structure of a bainite phase, martensite phase, and mixed martensite-austenite structure.
摘要:
A motor comprising a motor-wiring bus bar including a plurality of annular ring conductors connecting lead wires of the motor including a stator in which a plurality of stator cores having the lead wires is arranged in a circle or connecting the lead wires and a power line together and a plurality of terminals attached to the ring conductors. The ring conductors are different in diameter and arranged concentrically on a same plane.
摘要:
A piezoelectric vibrator having excellent shock resistance and high reliability is offered. The centers of first and second piezoelectric vibrating plates are supported by pillars on a main surface of an enclosure and nearly or substantially parallel to the main surface of the enclosure. Spacers having a Young's modulus of less than 2 GPa are mounted on both end sides of the second piezoelectric vibrating plate to prevent contact between the vibrating plates, thus preventing damage. Other spacers are mounted on the main surface of the enclosure in positions corresponding to the first-mentioned spacers to prevent contact with the main surface of the enclosure, thus preventing damage to the second piezoelectric vibrating plate.