Abstract:
A joint structure includes a sandwiched structural body comprising a core layer having opposite surfaces and a pair of first and second outer skin layers covering the opposite surfaces, respectively, and a substantially concave joint region defined in the first outer skin layer and comprising a side wall and a bottom wall contiguous to the side wall, the bottom wall being joined to the second outer skin layer. The side wall of the joint region is of a tapered shape. The sandwiched structural body is formed primarily of synthetic resins, and may additionally include reinforcing fibers.
Abstract:
The part-mounting structure of the present invention includes a part-mounting portion of a sandwich structure constituted by a core layer and plastic skin layers formed on both surfaces of the core layer, and a part-mounting metal member, at least one of the skin layers having a tapered recess having a sloped side wall and a flat bottom wall, the bottom wall being constituted by the skin layers bonded together, the part-mounting metal member having a bottom plate, and a pair of side plates vertically extending from the bottom plate substantially on both sides, at least one of the side plates having a dent tapered complementarily to the tapered recess of the sandwich structure. The part-mounting metal member is mounted to the part-mounting portion of the sandwich structure with a surface of the tapered recess of the sandwich structure and a surface of the tapered dent of the part-mounting metal member bonded together by an adhesive. This structure is suitable for mounting various parts such as engines, suspension beams, upper arms, radius rods, dampers, seat slide rails, etc. to the vehicle body.
Abstract:
A power unit mounting structure in a motor vehicle includes a power unit comprising an engine having a crankshaft, a transmission coupled to the crankshaft of the engine, and a differential interposed between drive axles connected to a pair of laterally spaced front road wheels of the motor vehicle and the transmission. The power unit is mounted in a front portion of the motor vehicle with its center of gravity positioned rearwardly of the drive axles extending from the differential toward front road wheels serving as the drive road wheels. A steering gearbox extends parallel to the drive axles and is disposed forwardly of the drive axles.
Abstract:
A simple process for producing v-coelenterazine compounds has been desired. Described is a process for producing a v-coelenterazine compound represented by general formula (II) comprising (1) the step of reacting a compound of general formula (VIII) with a methyltriphenylphosphonium salt in the presence of a base to give a compound represented by general formula (IX), (2) the step of performing a ring-closing metathesis reaction on any one selected from the group consisting of the compound represented by general formula (IX) and a compound of general formula (X) which is the compound of general formula (IX) wherein the amino is protected with R5, and then deprotecting R4 and, if any, R5 to give a v-coelenteramine compound represented by general formula (XIV), and (3) the step of reacting the compound of general formula (XIV) with a compound represented by general formula (XV) to give the compound of general formula (II).
Abstract:
This high-carbon pearlitic steel rail having excellent ductility, includes: in terms of percent by mass, C: more than 0.85% to 1.40%; Si: 0.10% to 2.00%; Mn: 0.10% to 2.00%; Ti: 0.001% to 0.01%; V: 0.005% to 0.20%; and N: less than 0.0040%, with the balance being Fe and inevitable impurities, wherein contents of Ti and V fulfill the following formula (1), and a rail head portion has a pearlite structure. 5≦[V(% by mass)]/[Ti(% by mass)]≦20 Formula (1)
Abstract:
The cutting method of steel for machine structural use includes: forming a mist by mixing a cutting fluid supplied at a supply rate of 0.01 ml/hour to 200 ml/hour and an oxidizing gas containing, by volume %, 21% to 50% of oxygen; and cutting the steel for machine structural use while the mist is blown on the cutting edge surface of a tool and the surface of the steel for machine structural use, wherein the steel for machine structural use includes, by mass %: C: 0.01% to 1.2%, Si: 0.005% to 3.0%, Mn: 0.05% to 3.0%, P: 0.001% to 0.2%, S: 0.001% to 0.35%, N: 0.002% to 0.035%, Al: 0.05% to 1.0%, and the balance consisting of Fe and inevitable impurities in which O is limited to 0.003% or less, and the amount of Al [Al %] and the amount of N [N %] satisfy [Al %]−(27/14)×[N %]≧0.05.
Abstract:
Steel for forging having high strength and superior machinability due to controlled cooling immediately after shaping by hot forging followed by tempering and having a lower specific gravity than ordinary steel for forging use, the steel containing C: 0.05 to 0.50%, Si: 0.01 to 1.50%, Mn: 3.0 to 7.0%, P: 0.001 to 0.050%, S: 0.020 to 0.200%, Al: 3.0 to 6.0%, Cr: 0.01 to 1.00%, and N: 0.0040 to 0.0200% and having a balance of Fe and unavoidable impurities.
Abstract:
To readily remove on-vehicle components from a vehicle body, suitably reflecting the state of the vehicle or occupant in addition to the will of the operator.The safety confirmation device 11 determines whether or not to permit actuation of the separation actuator 13, that is, whether to set the switch 12 to the ON state to allow an electrical connection from the power supply 14 to the separation actuator 13, based on the signals input from the external input receiving portion 21, the occupant protection device 22, the status quantity sensor 23, and the input portion 24, and outputs a gate signal corresponding to this determination result to the switch 12. Electrification of the separation actuator 13 from the power supply 14 via the switch 12 releases the fixation of an on-vehicle component by disassembling the fixation member that fixes the on-vehicle component to the vehicle body.
Abstract:
A steel material superior in high temperature characteristics and toughness is provided, the fire resistant steel material containing by mass %, C: 0.001% to 0.030%, Si: 0.05% to 0.50%, Mn: 0.40% to 2.00%, Nb: 0.03% to 0.50%, Ti: 0.005% to less than 0.040%, and N: 0.0008% to less than 0.0050%, restricting P: 0.030% or less and S: 0.020% or less, and having a balance of Fe and unavoidable impurities, where the contents of C and Nb satisfy C—Nb/7.74≦0.004, and Ti-based oxides of a grain size of 0.05 to 10 μm are present in a density of 30 to 300/mm2.
Abstract translation:提供高温特性和韧性优异的钢材,以质量%计含有C:0.001%〜0.030%,Si:0.05〜0.50%,Mn:0.40%〜2.00%,Nb:0.03的耐火钢材料 %至0.50%,Ti:0.005%至小于0.040%,N:0.0008%至小于0.0050%,限制P:0.030%以下,S:0.020%以下,余量为Fe和不可避免的杂质 ,其中C和Nb的含量满足C-Nb / 7.74≦̸ 0.004,并且具有0.05至10μm的晶粒尺寸的Ti基氧化物以30至300 / mm 2的密度存在。
Abstract:
A 590 MPa-class rolled steel shape of high strength and excellent toughness for use as a building structural member and a method of producing the high-tensile rolled steel shape are provided. Strength optimization by an alloy that elevates hardenability, texture refinement obtained by fine dispersion of Ti oxides and TiN owing to Ti addition, precipitation strengthening by Cu addition, and formation of a fine bainite texture by temperature-controlled rolling, cooling control and the like enable a high-strength, high-toughness rolled steel shape of high-strength and excellent toughness having mechanical properties of a tensile strength of not less than 590 MPa, a yield strength or 0.2% proof strength of not less than 440 MPa and a Charpy impact absorption energy at 0° C. of not less than 47 J, and method of producing the same.