摘要:
A stainless steel for use in a fuel cell separator is produced by subjecting stainless steel containing 16 mass % or more of Cr to electrolytic treatment and thereafter to immersion treatment in a solution containing fluorine. The electrolytic treatment is carried out by anodic electrolyzation or by a combination of anodic electrolyzation and cathodic electrolyzation, and an anodic electrolytic quantity Qa and a cathodic electrolytic quantity Qc preferably satisfy Qa≧Qc. The solution containing fluorine preferably has a temperature of 40° C. or higher, and hydrofluoric acid concentration [HF] (mass %) and nitric acid concentration [HNO3] (mass %) satisfying [HF]≧0.8×[HNO3].
摘要:
A bearing device comprising a shaft body having an axially cylindrical portion in a free end side thereof and a rolling bearing fitted around an outer peripheral surface of the shaft body, wherein the cylindrical portion is bent and deformed radially outward by a rolling caulking to be caulked thereby on an outer end face of an inner ring of the rolling bearing. An inner peripheral surface of the cylindrical portion is formed by a turning work, and a residual stress left in a surface layer of the inner peripheral surface of the cylindrical portion by the turning work is set to a value capable of restraining a crack generation ratio in the inner peripheral surface to less than a predetermined rate, desirably to not more than 5 kgf/mm2.
摘要翻译:一种轴承装置,包括:轴体,其轴向圆筒部分在其自由端侧;以及滚动轴承,其安装在所述轴体的外周表面上,其中所述圆筒部分通过滚动铆接径向向外弯曲以被铆接 从而在滚动轴承的内圈的外端面上。 圆筒部的内周面通过车削加工而形成,通过车削加工将圆筒部的内周面的表面层残留的残余应力设定为能够抑制裂纹产生率的值 内周面小于预定速率,优选为5kgf / mm 2以下。
摘要:
A fastening structure capable of preventing deterioration in the flatness of a surface of a flange portion (2) when a serration (7) of a bolt (5) is press-fit into the flange portion (2). In this fastening structure, one portion in an axial direction of an outer peripheral surface (6) of the bolt (5) is provided with the serration (7). The bolt (5) is press-fit into a bolthole (3) formed through the flange portion (2) of a mounting member (1). The serration (7) is located apart from respective end surfaces (2A) and (2B) of the flange portion (2) by first and second distances (D, C), and the first and second distances (D, C) each exceed 13% of the thickness (A) of the flange portion (2). With this arrangement, the serration (7) presses a bolthole inner peripheral surface (13) only in the region located far apart from both of the end surfaces (2A and 2B) of the flange portion (2).
摘要:
A fastening structure capable of preventing deterioration in the flatness of a surface of a flange portion (2) when a serration (7) of a bolt (5) is press-fit into the flange portion (2). In this fastening structure, one portion in an axial direction of an outer peripheral surface (6) of the bolt (5) is provided with the serration (7). The bolt (5) is press-fit into a bolthole (3) formed through the flange portion (2) of a mounting member (1). The serration (7) is located apart from respective end surfaces (2A) and (2B) of the flange portion (2) by first and second distances (D, C), and the first and second distances (D, C) each exceed 13% of the thickness (A) of the flange portion (2). With this arrangement, the serration (7) presses a bolthole inner peripheral surface (13) only in the region located far apart from both of the end surfaces (2A and 2B) of the flange portion (2).
摘要:
Stainless steel for fuel cell separators contains C: ≦0.03%, Si: ≦1.0%, Mn: ≦1.0%, S: ≦0.01%, P: ≦0.05%, Al: ≦0.20%, N: ≦0.03%, Cr: 16 to 40%, and one or more of Ni: ≦20%, Cu: ≦0.6% and Mo: ≦2.5%, the balance being Fe and inevitable impurities. According to X-ray photoelectron spectroscopy, the surface of the stainless steel contains fluorine and provides a 3.0 or higher ratio of the total of atomic concentrations of Cr and Fe in other than the metallic forms calculated from data resulting from the separation of peaks of Cr and Fe into metallic peaks and peaks other than the metallic peaks to the total of atomic concentrations of Cr and Fe in the metallic forms calculated from data resulting from the separation of peaks of Cr and Fe into metallic peaks and peaks other than the metallic peaks.
摘要:
An apparatus includes an edit command receiving unit and an editing unit. The edit command receiving unit is configured to receive a command with respect to a first image to edit a comic style page layout including a plurality of images. The editing unit is configured to edit the comic style page layout in accordance with the command and with respect to at least one of the plurality of images.
摘要:
A conductive connecting member formed on a bonded face of an electrode terminal of a semiconductor or an electrode terminal of a circuit board, the conductive connecting member comprising a porous body formed in such manner that a conductive paste containing metal fine particles (P) having mean primary particle diameter from 10 to 500 nm and an organic solvent (S), or a conductive paste containing the metal fine particles (P) and an organic dispersion medium (D) comprising the organic solvent (S) and an organic binder (R) is heating-treated so as for the metal fine particles (P) to be bonded, the porous body being formed by bonded metal fine particles (P) having mean primary particle diameter from 10 to 500 nm, a porosity thereof being from 5 to 35 volume %, and mean pore diameter being from 1 to 200 nm.
摘要:
A vehicle-use bearing apparatus including a hub wheel formed of steel material to which a wheel is mounted and a rolling bearing mounted to an outer periphery of the hub wheel. An end portion of the hub wheel is expanded radially outward toward an inner ring provided to the rolling bearing to be formed into a caulked portion and a percentage of sulfur content is adjusted to be 0.020% by weight or less in steel material of which the 10 caulked portion is formed.