Test method of electric heating tube: Pull-out rod tensile test, data source: People's Republic of China Machinery Industry Standard JB/T2379-2016 "Metal Tubular Electric Heating Element"
6.2 Pull-out rod pull test
The elements are fixed, and the set weights, including the attachments required to hang to the exit rod, are suspended vertically onto the exit rod for 3 minutes, and then inspected.
The inspection requirements are as follows:
The lead rod should be able to withstand the tensile test lasting 3min without displacement and fracture, and the test tensile force is 70% of the tensile force of the lead rod, but not more than 1000N.
