摘要:
A near-beta titanium alloy having higher strength than ‘Ti-17’ is provided, while suppressing cost increase. Such a near-&bgr; titanium alloy consists of, in weight percent, 0.5-7% of V, 0.5-2.5% of Fe, 0.5-5% of Mo, 0.5-5% of Cr, 3-7% of Al, and the balance of Ti and impurities. When the weight % of V content is expressed as XV, the weight % of Fe content is expressed as XFe, the weight % of Mo content is expressed as XMo, and the weight % of Cr content is expressed as XCr; the value of XV+2.95XFe+1.5XMo+1.65XCr is 9-17%.
摘要:
Top end stops for slide fastener in which front ends of its fastener chains are opened and no wrinkle is produced by a diamond of a slider, wherein a top end stop is molded with resin such that it includes a notch portion provided on an edge portion of a pair of fastener tapes and the top end stop is formed on a top face of the notch portion; the top end stop is formed at an end portion of a coupling element row with a gap from the coupling element, and a concave portion is formed to allow a diamond of a slider to escape; and an overlapping portion that a coupling head of a mating coupling element is capable of joining is formed at a bottom end of one of the top end stops, whereby the fastener chain can be closed completely by a slider, so that specified waterproof property and water cutout performance are secured.
摘要:
A booster circuit generates a boosted output by boosting a low voltage output supplied as a target to be boosted and feeds back a part of the boosted output, an output by the booster circuit itself, to the booster circuit as operation energy. An auxiliary booster circuit outputs start-up energy generated based on a low voltage output to the booster circuit as start-up energy that is necessary for starting up the booster circuit.
摘要:
An analyzer that causes a sample and a reagent to react with each other and analyzes the sample, the analyzer including reagent containers that store reagents and include openings for putting in and taking out the reagents, inner lids that are provided to be movable relatively to the openings and used for opening and closing the openings, a container shelf that moves the reagent containers, and an opening/closing mechanism that opens and closes the openings by moving the inner lids using movement of the reagent containers.
摘要:
This invention relates to an activated titanium catalyst used in an esterification reaction and/or a transesterification reaction, and a method of manufacturing esters having a low acid value and narrow molecular weight distribution by making effective use of the excellent dehydration esterification reaction properties and transesterification ability of this catalyst.
摘要:
The invention relates to a novel surfactant which is obtained by blending an N—C8-24 acylamino acid and an alkali salt of an amino acid, and also relates to a detergent composition comprising this surfactant as a cleansing component and an emulsion composition comprising this surfactant as an emulsifying component. In the alkali salt of an amino acid, a suitable amino acid is an acidic or neutral α-amino acid, and a suitable alkali is sodium, potassium, triethanolamine, or N-methyltaurine sodium. In the N—C8-24 acylamino acid, a suitable amino acid is acidic or neutral, and a suitable C8-24 acyl is a C12-18 acyl. This surfactant can provide a detergent composition which ensures good lathering ability and foam quality and which does not cause stiff hair or taut skin after use. The surfactant can also provide an emulsion composition which ensures a good emulsion state.
摘要:
A duplex stainless steel containing C, Si, Mn, P, S, Al, Ni, Cr, Mo, N (nitrogen, O (oxygen), Ca, Mg, Cu, B, and W, and the balance Fe and impurities, where a number of oxide-based inclusions, which have a total content of Ca and Mg of 20 to 40% by mass and also have a long diameter of not less than 7 μm, is not more than a 10 per 1 mm2 of the cross section perpendicular to the working direction, or further, the number of oxide-based inclusions, which have a content of S of not less than 15% by mass and also have a long diameter of not less than 1 μm, is not more than 10 per 0.1 mm2 of the cross section perpendicular to the working direction. Particularly, the contents of Cu, B and W are desirably 0.2 to 2%, 0.001 to 0.01%, and 0.1 to 4% by mass, respectively.
摘要:
This invention relates to an activated titanium catalyst used in an esterification reaction and/or a transesterification reaction, and a method of manufacturing esters having a low acid value and narrow molecular weight distribution by making effective use of the excellent dehydration esterification reaction properties and transesterification ability of this catalyst. Specifically, this invention is a catalyst for an esterification reaction and/or a transesterification reaction, which is a gel-like substance comprising a mixture of an alkoxytitanium, water-soluble polyol and water, or the reaction product thereof, wherein the number of moles of said water-soluble polyol and said water relative to 1 mole of titanium, is respectively 1-50 moles and 1-60 moles. For example, an objective polyester can be produced in a method of producing an ester comprising, a first step wherein a diol is reacted with an ester produced beforehand from a dibasic acid and a monofunctional alcohol, or an ester produced beforehand from a monofunctional alcohol and diol, a second step wherein unreacted ester is separated from the product produced in the first step to obtain another ester, and a third step wherein unreacted ester separated in the second step is recycled to the first step, 0.05-5 millimoles of the catalyst relative to one mole of acid being used in said first step.
摘要:
This invention provides a releasable bottom end stop for slide fastener which allows an insert pin thereof to be operated smoothly on being inserted into a semi-automatic/automatic stop slider. A slope for raising a locking pawl of an automatic or a semi-automatic stop mechanism provided on a slider when the insert pin is inserted into an inverse-opening type slider or an ordinary slider is provided obliquely so as to extend from a front end of the surface of an insert pin to a proximal end thereof. Additionally, a concave portion whose inlet is inclined for holding the locking pawl is provided over this slope. The inverse-opening slider is fitted in a stringer on a box pin side and another slider is also fitted such that it comes into contact with a top of the inverse-opening slider. If the insert pin disposed on another stringer is inserted with this condition, the locking pawl is raised by the slope so that the insert pin can be inserted smoothly and held in a stable condition.
摘要:
The present invention provides a hydraulic controller comprising: a plurality of switching spools; a plurality of cylinder ports of a switching valve; a compressed oil passage common to the switching valves having an intermediate chambers, at least a check valve in correspondence with at least a part of said switching spools, and said check valve being positioned between said intermediate chambers and said cylinder ports, so that said switching spools being positioned in a neutral position to close said passage and also being movable to adjust opening degree of said passage, wherein auxiliary ports are provided between the cylinder ports and a tank line; flow rate adjusters are also provided between the auxiliary ports and the tank line for adjusting an opening degree of the passage; pressure detectors are provided in the switching valves for detecting pressures of oils in the intermediate chambers; a maximum pressure selector operatively linked to said pressure detectors for selecting a maximum pressure from the detected pressures by the pressure detectors; whereby the pressures of said intermediate chambers are applied to the flow rate adjusters in an opening direction, while the selected maximum pressure selected by said maximum pressure selector is applied to the flow rate adjusters in a closing direction.