PURPOSE:To provide a highly reliable lead-acid battery where a grid portion of an anode and a welded portion of a strap cannot be corroded in a hybrid or calcium battery. CONSTITUTION:A lead-acid battery is provided with an electrode plate comprising a grid made of a lead-calcium alloy. Paste 2 composed of particles of a lead-tin alloy dispersed into a reducing solution such as an organic rosin is...

PURPOSE:To obtain a lead-acid battery which can improve the utilizing rate of an active material, and has an excellent capacity, by providing an electrode plate including a fiber form lead oxide in an active material, and making the adding amount of the lead oxide 0.5 to 5.0 mass%, and the mean length of the lead oxide in the scope 50mum to 40mum. CONSTITUTION:A solution or a dispersion liquid of ...

PURPOSE:To manufacture a sealed lead-acid battery with a high discharge capacity and a long service life even by forming an electrode plate not dried yet without carrying out the ageing and the drying. CONSTITUTION:An active material paste made by using a water or the water including lower than 5wt% of sulfric acid as a mixing and kenading solution is filled in a collector to form an electrode pla...

PURPOSE:To obtain a manufacturing method of a collector in which the productivity is not reduced even though a thick lead type membrane is used, the membrane is never broken, and a series of processing from the punching of the membrane to the connection on a plastic substrate can be carried out at a high speed. CONSTITUTION:A lead type sheet 1 is superposed on a protective sheet 2, then, the upper...

PURPOSE:To provide a lead-acid battery excellent in sealing performance by filling thermosetting resin adhesives into a fit-in section between a battery jar and a cover plate, and in each gap between each electrode cylinder through hole and the cover plate, and thereby efficiently and uniformly hardening the adhesives thereafter. CONSTITUTION:Adhesives 5 filled into a fit-in section between a batt...

PURPOSE:To provide a lead-acid battery highly excellent in reliability by preventing strap sections under a severe working condition from being corroded and damaged. CONSTITUTION:In a liquid lead-acid battery including plates, electrode columns and straps, the plates use a lattice body made out of a lead alloy containing no antimony. It is characterized in that each pole cylinder is made of a lead...

PURPOSE:To prevent the occurrence of sparks and ruptures due to the sparks by making each lug of one or more negative plates thicker than the other lugs. CONSTITUTION:The lead-acid battery is formed out of a plurality of negative plates 1, a strap 4, a cell container 3 and the like. Each thickness (a) of one or more lugs 2 out of a plurality of lugs of the negative electrode terminals of the negat...

PURPOSE:To provide a negative electrode absorbing type sealed lead-acid battery which is free of maintenance, simple in structure and capable of judging if it is degraded. CONSTITUTION:A lead wire 4 whose cross sectional area is decreased as it is extended longitudinally, is set within a battery jar 1 in such a way as to be in contact with an electrolyte hold body. The end side of the lead wire 4 ...

PURPOSE:To extend the untwisted coillike yarn end and form a uniform seam by providing an injection hole ejecting the air stream applying turning force to an introduced yarn end and an injection hole ejecting the air stream applying stretching force to the yarn end. CONSTITUTION:Compressed air is fed from an air feed path 14b formed on the untwisting nozzle block 14 of a splicer, and swirl air str...

The subject of the present invention is a method of welding two clad metal sheets. According to the invention, in a first step, a test metal sheet (4) is taken whose thickness is equal to the sum of the thicknesses of the two metal sheets (1 and 2) to be welded and whose constituent material is the base metal of these two metal sheets, which is possibly clad with the same material, the laser beam ...

PURPOSE:To accomplish a grommet at a low cost forming either of the car body side fit part and door side fit part separately from a tube part, and furnishing the fit part with a connection part for generating a connection with the tube part. CONSTITUTION:In a single piece construction, a car body side fit part 13 is formed at one end of a tube part 12 which is formed in bellows, and thereby a tubi...

PURPOSE:To minimize a measurement error due to noise by calculating a standard deviation of a video pattern displayed on the video device and obtaining a focus from the standard deviation. CONSTITUTION:When a pattern generator 2 outputs a dot pattern signal, a dot pattern is displayed on a television receiver (video device) 1. The state of the dot pattern is picked up by an image pickup means 3 an...

PURPOSE:To enhance the thermal stability of silver-sheath superconducting wires to be installed inside a package type superconductor. CONSTITUTION:In a reinforcing material 6 made of stainless steel, five Ag-Au alloy sheath oxide superconducting tape wires 1, 2, 3, 4, and 5 are accommodated in the condition impregnated with a resin 7, wherein the added Au concentration of Ag-Au alloy in the wires ...

PURPOSE:To provide possibility of laying a superconducting flexible cable even in an existing pipeline or in a cavity without causing deterioration in the critical amperage characteristics of the superconductor and without damaging it by making an inner undulate pipe with a greater flexural stiffness than that of an outer undulate pipe. CONSTITUTION:A superconducting flexible cable is composed of ...

PURPOSE:To provide an oxide superconductor free from risk of the critical current density dropping to a large extent caused by parallel arranging of the magnetic field applied to wires relative to the tape surface when a plurality of tape wires are packaged. CONSTITUTION:A plurality of silver-alloy sheath oxide superconducting tape wires 2 are laminated through five longitudinal base boards 4a, 4b...

PURPOSE:To provide a silver-sheath oxide superconductor which well suits a current lead conductor. CONSTITUTION:In a reinforcing material 6 made of stainless steel, five silver- sheath oxide superconducting tape wires 1, 2, 3, 4, and 5 are accommodated in the condition impregnated with Pb-Sn solder 8, and the resultant is heat treated so that the solder 8 is dispersed in the silver sheaths 6 of th...

PURPOSE:To suppress steep rise of the cryostat internal pressure when a coil goes in quenching by twining together a plurality of superconducting element wires around a hollow reinforcing material having a hollow part provided for flowing of a refrigerant, and thereby accomplishing a compact and high pressure resistant structure. CONSTITUTION:A superconductor is so structured that a plurality of s...

PURPOSE:To prevent a superconducting filament from abnormal deformation and severance by providing a plurality of specifically long vertical holes in a billet in the specified arrangement. and thereby enabling uniform deformation of a superconductive element material laid internally in the elongation processing. CONSTITUTION:Nineteen vertical holes 3 having a circular section are bored in the axia...

PURPOSE:To maintain high the soundness of an NbTi filament and achieve a good superconductive characteristics by putting a layer of Nb having a specific film thickness in composite structure around a core consisting of NbTi. CONSTITUTION:A layer of Nb is provided around a core consisting of NbTi, and around it either Cu or Cu alloy is put in composite structure, and the resultant is subjected to a...

PURPOSE:To provide excellent acid resistance and processing easiness as well as mechanical characteristics, presents easiness in handling, and enhance the superconductive characteristics by furnishing a silver series covering layer containing oxide fine particles dispersedly at the periphery of a powder layer of an oxide superconductor. CONSTITUTION:A silver series covering layer 1 containing oxid...