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ASTM D5397 Notched Constant Tensile...
ASTM D5397 Notched Constant Tensile Load Tester
Our DW1441 Notched Constant Tensile Load Tester strictly to design according ASTM D5397. This machine also named Environmental Stress Cracking Tester.
All of the sample holder is fixed on a metal frame; the metal frame has a solution pool below; solution pool by motor control, can rise and fall; when you click on the screen to rise when the solution pool rises, the metal frame and all samples were soaked in the solution.
Each sample holder has a lever and weight behind the connection; the lower end behind the lever has a limit switch; when the sample is broken, due to the load effect, the lever end behind the sink, will trigger the limit switch, instrument stop timing; each sample individually timed, each lever arranged below the lower end has a limit switch, fracture time was controlled for each sample.