The Effect of Heat Treatment of Roller Chain Link-Plates on the Fatigue Strength and Impact Strength
1970 Volume 19 Issue 196 Pages 10-15
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1970 Volume 19 Issue 196 Pages 10-15
In this report, the fatigue strengtn and impact strength of roller chain link-plates subjected to various conditions of heat treatment are shown. The experimental results are as follows:
(1) The most favorable condition for heat treatment of roller chain link-plates for their fatigue strength will be that the link-plates will be first hardened and tempered, and then austempered and tempered, and that the temperature will be 370°C, HRA 72 for both tempering and austempering.
(2) For resistance to repeated impact energy from 20kg·cm to 50kg·cm, the most favorable condition for heat treatment of link-plates will be that the link-plates will be austempered, and that the temperature for austempering will be 370°C and HRA 72.
(3) The link-plates of HRA 78 have proved strongest for repeated impact energy from 80kg· cm to 640kg·cm, but have turned out weakest for fatigue strength.
