By Ropane
Date 07-30-2018 08:21
Hi All,
First of all this is my first time on forum and I'm from Australia so please forgive me for the metric for length I will convert to decimal for Inches as well. My question is based around Cl. 5.8.1 (4) Above 600°F (315°C), cooling shall be done in a closed furnace of cooling chamber at a rate no greater than 500°F (260°C) per hour divided by the maximum metal thickness of the thicker part in inches (mm), but in no case more than 500°F (260°C) per hour.
Question: Maximum metal/material thickness = 0.63" (16mm), 500°F (260°C) divided by 0.63" (16mm) = 61.25°F/hr (16.25°C/hr) there is something going on with my interpretation here, the ramp down rate seems way too low.
Any help in shedding some light on the above would be appreciated.
Thankyou