摘要:
A pasted type lead-acid battery with greatly extended service life and capacity over the usable service life thereof has a glass mat, which may have a dual layer construction, disposed adjacent positive plates of assembled elements. Each plate is constructed as a grid having main and small members with the small members entirely embedded in an active material. Pressure is applied to the assembled element within disclosed ranges. The assembled elements may be pressurized by a binding band or pressure may be applied from outside the battery container. In the latter case, the side and bottom walls of the container are made pleat-shaped.
摘要:
Provided is a disk brake in which a rotation control part for controlling relative rotation of a cartridge and a cylinder of a parking brake mechanism is formed at the cartridge and includes convex parts having curved surfaces and concave parts formed at the cylinder and having curved surfaces, and a spacer formed of stainless steel, resiliently fitted into an inner circumference of the cylinder and including arc part having the same shape as the concave parts is disposed between the convex parts and the concave parts.
摘要:
The present invention provides a joining, brazing or soldering material wherein solderability is effectively improved without using a flux, and a production method thereof. In production of a joining material, a halogen compound is mixed, a film is formed on the surface of a solder molding or the surface of a solder molding is halogenated. In production of a joining material, a halogen compound is added to a solder melt, a film of a halogen compound is formed on the surface of a processed joining material, or the surface layer of the processed joining material is converted to a halogen compound layer by halogenation. Film formation or surface treatment may be carried out either a dry or wet method.
摘要:
A paste type lead storage battery having a grid constituted by a grid base formed of a lead-calcium alloy and a layer of lead-antimony-stannum alloy roll-bonded integrally to the grid base on at least one side thereof. Preferably, the grid is formed by expanding a sheet of base material to which the alloy layer is integrally roll-bonded. Portions of the base and the alloy layer that serve as a active material support are both in contact with a paste-like active material, and antimony and stannum coexist in the alloy layer. The charge restoration after standing in a discharged state and the lifetime during cycles of charge and discharge including heavy discharge are thereby improved.
摘要:
A disk brake capable of improving fabrication efficiency and having a transmission member. The transmission member (101) includes: an anti-rotation locking portion (130) formed on an outer circumferential portion of the transmission member, the anti-rotation locking portion being slidably fitted into a fitting area (72) on a cylinder (35) side so as to restrict rotation relative to the cylinder; and a seal groove (109) formed in an inserted portion (105). The seal groove stores a sealing member (118) for defining an internal space in the cylinder (35) and a cam chamber (62). The anti-rotation locking portion is fitted into the fitting area (72) on the cylinder side before the sealing member is positioned inside a hole (59) when the inserted portion (105) of the transmission member (101) is inserted into the hole.
摘要:
Provided is a disk brake capable of improving fabrication efficiency. A transmission member (101) includes: an anti-rotation locking portion (130) formed on an outer circumferential portion of the transmission member, the anti-rotation locking portion being slidably fitted into a fitting area (72) on a cylinder (35) side so as to restrict rotation relative to the cylinder (35); and a seal groove (109) formed in an inserted portion (105), the seal groove storing a sealing member (118) for creating the cylinder (35) and a cam chamber (62). The anti-rotation locking portion (130) is fitted into the fitting area (72) on the cylinder (35) side before the sealing member (118) is positioned inside a hole (59) when the inserted portion (105) of the transmission member (101) is inserted into the hole (59).
摘要:
A method of manufacturing an electrooptical device includes a step of forming a luminous element on a luminous element forming face of a transparent substrate, a step of forming an attach face by grinding a face of the transparent substrate that opposes the luminous element forming face toward the luminous element forming face side after attaching a support substrate to the transparent substrate on the luminous element forming face side and a step of providing the microlens that sends out a light emitted from the luminous element on the transparent substrate with a sheet substrate therebetween by attaching a side face of the sheet substrate opposing a lens forming face on which the microlens is formed to the attach face.
摘要:
This invention relates to a method of producing a paste-type electrode for a lead storage battery which comprises packing into an active material support a paste prepared by kneading a lead oxide having a conversion ratio to red lead (Pb.sub.3 O.sub.4) of 90% or less or a mixture of this lead oxide powder with water and sulfuric acid as the principal components. Because this lead oxide contains red lead less than 90%, red lead formed on the surface of this oxide and lead oxide (PbO) formed in the particle core are directly bonded. This enhances the bonding power between the active materials. The paste-type electrode prepared by this method provides high adhesion of the paste to the active material support and high bonding power between the active materials. Therefore, both improvements in life and in efficiency of formation charge can be attained.
摘要:
The present invention provides a process for producing a grid for use in lead acid batteries which comprises superposing a sheet or a foil of a lead alloy on a sheet bar composed of a lead-calcium alloy, said sheet or foil of lead alloy having a composition different from that of the sheet bar and having a thickness smaller than that of the sheet bar, followed by integrating the two materials by cold rolling process to form an elementary sheet and then subjecting the elementary sheet to an expanding or punching processing.The grid obtained according to this process is improved in the charging recovery characteristics after standing in a superdischarged state and in the corrosion resistance of grid at high temperatures without deteriorating the maintenance-free characteristics of the lead-calcium alloy itself.
摘要:
A method for fabricating an electrode for use in lead storage batteries in which an aqueous emulsion of a silicone capable of forming an elastic, porous matrix on breaking of the emulsion, is contacted with a finely divided active electrode material at the stage of preparing an electrode paste, or after formation as an electrode. The contacted material is dried, so that the elastic, porous silicone matrix formed in association with and in intimate contact with the finely divided active electrode material. An aqueous dispersion of fluorocarbon resin can be further added to the paste, or an electrode having a fibrous network of fluorocarbon resin can be applied with the silicone emulsion. Fine particles obtained from the silicone emulsion can also be applied to a finely divided active electrode material.