摘要:
Spring steel wire is formed by drawing steel wire including a phosphate film, the weight of the film being in the range of 3.0 to 5.5 g/m2, and R/d being in the range of 1.06×10−3 to 3.92×10−3 where R represents surface roughness; and d represents the diameter of the spring steel wire.
摘要翻译:弹簧钢丝是通过拉拔包含磷酸盐膜的钢丝形成的,膜的重量在3.0至5.5g / m 2的范围内,R / d在1.06×10-3至3.92×10 -3的范围内,其中 R表示表面粗糙度; d表示弹簧钢丝的直径。
摘要:
An annular metal cord includes an annular core portion formed in an annular shape, and an outer layer portion spirally wound around the annular core portion while running over an annular circumference thereof plural times and covering an outer peripheral surface of the annular core portion. Each of the annular core portion and the outer layer portion are formed by a strand material which is formed by intertwisting a plurality of metal filaments. At least part of the outer layer portion is covered with an outer layer sheath made of a coating material having elasticity.
摘要:
An annular metal cord and an endless metal belt are provided which have superior breaking strength and which are easy to be produced.The annular metal cord includes an annular core portion 3 and an outer layer portion 4. The annular core portion 3 is formed by connecting together both ends of a first strand material 1 which is made up of six twisted first metal filaments 5. The outer layer portion 4 is formed by winding spirally a second strand material 2 which is made up of six twisted second metal filaments 6 around the annular core portion 3. The second strand material 2 is wound at a predetermined winding angle relative to a center axis of the annular core portion 3, and a winding initiating end portion and a winding terminating end portion thereof are connected together. Since it is not that six second strand materials 2 are not wound but that the second strand material 2 is wound six rounds, there only has to be the single second strand material 2, and there is only one connecting portion. As a result, the breaking strength of the annular metal cord can be made large, and the production thereof can be facilitated.
摘要:
An object of the present invention is to impart long-lasting, stable corrosion resistance to an annular core of an annular concentric-lay bead cord at a low cost.Corrosion-resistant coating is provided on the surface of the steel wire forming the annular core 1 to cover the surface of the steel wire with a thick coating film 3, thereby preventing exposure of the surface of steel wire even if fretting develops between the annular core 1 and the wrap wire 2. With this arrangement, it is possible to impart long-term, stable corrosion resistance to the annular core 1 at a low cost.
摘要:
A porous composite structure, and in particular a membrane, for separating fluids is described. The composite structure comprises at least a porous support and a zeolite layer applied to the support and the zeolite is a zeolite of the T type or of an erionite type.