torque values for joining hot plates
torque values for joining hot plates
(OP)
hello - i was wondering if there was a different torque value for joining 2 plates which are at a temperature of 150 degrees each or when the 2 plates are at room temperature - i believe there is but i cant seem to find what the variation or conversion is per unit of increase in temperature - we have a platen in a plastics machine that has worked loose & the customer wants to tighten it back up w/o shutting down the machine & letting it cool - any info would be greatly appreciated - thank you





RE: torque values for joining hot plates
If these are high strength steel bolts they should have the same strength as the do at room temp.
The big problem will be thread lubrication, are you sure that your anti-seize is up to it?
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P.E. Metallurgy, Plymouth Tube
RE: torque values for joining hot plates
You need to use elongation control, and give consideration to the expansion coefficients of the fasteners and the platen.
You could try to calculate elongation as a function of torque, but that won't be very accurate.
RE: torque values for joining hot plates
RE: torque values for joining hot plates
= = = = = = = = = = = = = = = = = = = =
P.E. Metallurgy, Plymouth Tube
RE: torque values for joining hot plates
RE: torque values for joining hot plates