Abstract:
An object of the present invention is to provide a porous liquid absorbing-and-holding member having a high absorbing capacity for a liquid owing to capillarity and having in itself a structure capable of holding a large amount of the liquid, a process for producing this member, and a member for absorbing and holding an alcohol used as a fuel for a fuel cell. The porous liquid absorbing-and-holding member provided by the present invention is that including a porous sintered product having a skeleton formed by sintering of metal powder around voids and subjected to hydrophilicity-imparting treatment. The hydrophilicity-imparting treatment is preferably the formation of one or more substances selected from the group consisting of silicon oxides, titanium oxides, chromium oxides and aluminum oxide on the skeleton.
Abstract:
A capillary structure for a heat transfer device, such as a heat pipe is provided having a plurality of particles joined together by a brazing compound such that fillets of the brazing compound are formed between adjacent ones of the plurality of particles and one or more vapor vents are defined in the capillary structer. In this way, a network of capillary passageways are formed between the particles and vapor-vents through the capillary structure so as to aid in the transfer of working fluid by capillary action, while the plurality of fillets provide enhanced thermal transfer properties between the plurality of particles so as to greatly improve over all heat transfer efficiency of the device. A method of making the capillary structure according to the invention is also presented.
Abstract:
A method for metal processing is provided in which a cooling atmosphere comprising hydrogen is used for accelerated cooling of a processed metal part in a furnace, resulting in improved properties for the metal part. A sintering furnace is also provided and comprises a means for inhibiting gas flows between a heating zone and a cooling zone of the furnace.
Abstract:
The present invention aims at preventing abrasion of relatively sliding members under a high pressure or/and high temperature condition. It also aims at preventing seizure of the sliding contact surfaces at high temperatures. The sliding member of the present invention serves as one of a pair of relatively sliding members essentially consisting of stainless steel as base material containing 5% to 10% by weight of cobalt, 1 to 5% by weight of molybdenum disulfide and 2% to 5% by weight of calcium fluoride.
Abstract:
The invention concerns an iron powder for fortifying foodstuff. The powder consists of a reduced iron powder having irregularly shaped particles, wherein the iron powder has a ratio AD:PD less than 0.3, wherein AD is the apparent density in g/cm3, and PD is the particle density in g/cm3. The specific surface area of the powder particles is above 300 m2/kg as measured by the BET method and the average particle size is between 5-45 μm.
Abstract translation:本发明涉及用于强化食品的铁粉。 粉末由具有不规则形状的颗粒的还原铁粉组成,其中铁粉的AD:PD比小于0.3,其中AD为表观密度,单位为g / cm 3,PD为 颗粒密度(g / cm 3)。 粉末颗粒的比表面积通过BET法测定为高于300m 2 / kg,平均粒径在5-45μm之间。
Abstract:
A process for preparing a sintered article of a compacted iron-based metallurgical powder. The green compact is sintered at a closely held predetermined temperature in order to achieve desired density and dimensional stability.
Abstract:
An anode support formed of a three-dimensional interconnected porous nickel plaque fabricated by sintering a bed of pure metallic nickel powder particles.
Abstract:
The invention concerns a method of improving the properties of a hydrogen storage alloy powder for a negative electrode of a rechargeable nickel hydride battery. The method comprises the steps of hydriding a powdered alloy starting material, oxidising the obtained hydride alloy powder and washing the oxidised powder. The invention also concerns the obtained powder.
Abstract:
Chlorine gas from a supply nozzle is mixed with the vapor of nickel chloride and the mixed gas is supplied from a supply nozzle into a hydrogen gas atmosphere in a reduction reactor at a reduction temperature of 900 to 1100° C. The volume of chlorine gas to be mixed versus the vapor of nickel chloride is adjusted to a ratio of 0.01 to 0.5 moles per mole of the vapor of nickel chloride. The particle size of the nickel powder can be controlled appropriately, and also, uniformity of particle size, smoothability of surfaces of particles, and sphericity can be improved.