F - Mech Eng,Light,Heat,Weapons – 16 – G
Patent
F - Mech Eng,Light,Heat,Weapons
16
G
F16G 13/06 (2006.01) B24C 1/10 (2006.01) C21D 7/06 (2006.01)
Patent
CA 2466159
A chain including chain pins 15, which connect an inner link plate and an outer link plate, are made of carburized or refined steel, and have the entire surface on which a large number of dimples 17 are provided which are formed through a primary shot peening performed at an arc height value of 0.35 to 0.8 mmA. Furthermore, dimples 21 with a size smaller than that of the dimples 17 are formed by applying a secondary shot peening performed at an arc height value smaller than that of a primary shot peening to the dimples 17 which have been subjected to the primary shot peening.
L'invention concerne une chaîne dans laquelle des axes de maillons (15), connectant des plaques de liaisons intérieures, sont constitués d'acier cémenté ou d'acier traité thermiquement, et comportent un grand nombre de crans (17) façonnés sur les surfaces entières des axes de maillons par grenaillage avec des billes d'acier, ces crans possédant une valeur de hauteur d'arc comprise entre 0,35 à 0,8 mmA, et des crans (21), plus petits que les crans (17) obtenus avec le premier grenaillage, formés par application d'un second grenaillage sur les crans (17) avec une valeur de hauteur d'arc plus petite que celle obtenue avec le premier grenaillage.
Marks & Clerk
Sugiyama Chain Co. Ltd.
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