PURPOSE: To reduce an explosion shock due to an inner ignition and prevent the damage by a simple means by covering a whole bottom of a block cover with a mat made from a partly-hydrophobic fiber material sintered at a high temperature and extended. CONSTITUTION: A multiple-cell type lead/acid-storage battery is formed with a wall that separates a space of a block case and block cover into two cel...

PURPOSE:To manufacture with ease and at low cost a lead-acid battery where a short circuit is hard to occur at its lower portion by providing a protrusion to open a space in the lower portion of the battery between a separator and a negative plate, the separator being disposed between positive and negative plates. CONSTITUTION:A separator, disposed between a positive plate 1 and a negative plate 2...

PURPOSE: To make restriction of a damage possible in such a way that is not so much expensive by coupling all the individual mat each other with thin connecting strips before fitting them into a cover. CONSTITUTION: A battery case 1 has 6 cells, and corresponding to the case 1 a block cover 2 and a fiber mat 3 fragmentally cut are provided. This mat 3 consists of cut fragments 4 corresponding to t...

PURPOSE:To lower part cost, simplify manufacture, and give a strong vibration- resistant property, by interposing plural bags, in which a given content is packed between the outside surface of an electrode group and the battery jar inner wall and having a corrosion-resistant property to dilute sulfuric acid. CONSTITUTION:Plural bags 10, in which a content, having specific gravity larger than that ...

PURPOSE:To obtain a piezoelectric/electrostrictive film type element relatively having large displacement at low working voltage and having excellent strength by previously curving a section consisting of a thin ceramic board and a piezoelectric/electrostrictive working section formed through a film forming method in a projecting shape to the ceramic board side. CONSTITUTION:A piezoelectric/electr...

PURPOSE:To attain the invalidation test of a buffer storage for instruction even when this storage is independent from a buffer storage for operand in regard of the invalidation test method and device for buffer storages in a system which contains a high speed buffer storage to store the copy of the data stored in a main storage. CONSTITUTION:A test means 10 stores a repetition instruction train i...

The invention relates to a process for producing a particle-stabilized metal foam from a composite capable of acting as a precursor for the metal foam. The composite is formed by heating a matrix metal, e.g. aluminum or an aluminum alloy, above its liquidus temperature to form a liquid matrix metal, adding to the liquid matrix metal stabilizer particles capable of remaining dispersed within the ma...

It has been found that the use of specific expanded organic microspheres greatly improve the RIM process by (i) significantly enhancing the blowing action of air and/or nitrogen, (ii) providing for uniform density of the molded part, (iii) allowing for the reduction of internal mold pressures, (iv) substantially eliminating surface defects, (v) allowing for a significant reduction in density in th...

PURPOSE:To provide a conductor for superconducting bus bar excellent in bending property and easy to execute wiring. CONSTITUTION:A required number of superconductive molded stranded wires 1 with a fan-shaped section are arranged in a circular section to form an assembly, and the assembly are stranded together with an insulating sheet 2 being interposed in the position halving the cross-section. S...

PURPOSE:To reduce a combining loss without loosing thermal and electric stabilities. CONSTITUTION:A copper allay layer and its oxide layer are successively formed on the outer circumference of a superconducting conductor in which a superconducting filament is compounded in a copper matrix forming a stabilized metal. The copper alloy layer and the oxide layer on the outer circumference are good ins...

PURPOSE:To provide a conductor for superconducting bus bar excellent in flexibility and cooling property. CONSTITUTION:A required number of Al stabilized superconductors 2, 12 are stranded together in a plurality of layers on a metal pipe 1, and an insulating sheet 3 is interposed between the determined layers of the resulting superconducting hollowed stranded wire to separate the superconducting ...

PURPOSE:To provide a superconducting cable suitable for pulse or AC magnet. CONSTITUTION:A superconducting molded stranded wire 1 obtained by stranding a required number of superconducting wires in which a number of superconducting filaments are embedded in a copper matrix and molding the resulting stranded wire into a determined form is subjected to a determined oxidizing treatment to form an cop...

PURPOSE:To provide a method for manufacturing a superconducting composite billet excellent in wire drawing workability. CONSTITUTION:A superconducting wire rod is inserted into a stabilized metal pipe or a metal pipe for superconducting constituting element supply, and after the metal pipe is evacuated, a metal cap is sealed to the metal pipe. The metal pipe is degassed to a degree of vacuum of 1X...

PURPOSE:To manufacture an oxide superconductor having higher crystal orienting property with more uniform thickness, and also having a high critical current value. CONSTITUTION:A starting bar consisting of a raw material forming an oxide superconductor and having a density closer to the ideal perfect crystal density of the oxide superconductor is prepared. A laser beam is emitted to at least a par...

PURPOSE:To manufacture a Bi oxide superconductor excellent in superconductivity and suitable for the manufacture of a long wire by subjecting a composite billet obtained by charging a starting material in a metal vessel to processes of wire drawing work and specified partial fusing. CONSTITUTION:A starting material capable of forming an Bi-Sr-Ca-Cu-O oxide superconductor is charged in a metal vess...

PURPOSE:To manufacture a long superconducting wire excellent in superconductive characteristic by winding a composite sheet consisting of an Bi oxide superconductor and silver on a silver core material after being subjected to a specified heat treatment, and inserting it into a silver billet to perform diameter contracting work and heat treatment. CONSTITUTION:A composite sheet consisting of a Bi ...

PURPOSE:To realize compactness by manufacturing a coil while restraining bending strain at a specified value or less when manufacturing a superconducting coil by React & Wind method by using Nb3Al or Nb3(Al-Y) superconductive wire which is manufactured by a jelly roll method. CONSTITUTION:Nb3Al or NB3(Al-Y) compound wire (Y is an element constituting Nb alloy or Al alloy.) is manufactured by lap-w...

PURPOSE: To provide a hermetically sealed integrated circuit. CONSTITUTION: A hermetically sealed integrated circuit is composed of circuit sub-assemblies each equipped with a primary passivation layer 3 and one or more bonding pads 2 provided to the passivation layer 3. A silicon-containing ceramic layer 4 is added to the primary passivation layer 3 through a physical vapor deposition method(PVD)...

PURPOSE: To provide a method of forming a metal interconnection pattern improving productivity. CONSTITUTION: A method, through which a metal interconnection pattern 100 is formed for an integrated circuit module 90, comprises a first process where only the surface 110 of the module 90 is aligned, a second process where a metal layer is formed on the other surface 120 of the module 90, a third pro...

Device comprising a cylinder (1), a piston (2) sliding in the cylinder in a leakproof manner and a screw (6) axially lodged in the piston. In order to facilitate production and to achieve an associated size reduction, the piston comprises a sleeve (2a) and a cover (2b), the latter having an annular seal (3).