To determine the mechanical performance of products, samples in granule form are extruded into strips using our laboratory-scale extruder device according to the IEC EN 60811 standard. These strips are then used to create test specimens with molds compliant with the IEC EN 60811-501 standard, utilizing a pneumatic press. The tensile, tear, and elongation tests on these specimens are conducted in accordance with ISO 527, ASTM D 1938, and BS 6469 standards.
The width and thickness of the specimen are measured with a caliper and recorded on the test screen. The specimen is clamped at both ends between the jaws of the device, and extensometers, which detect elongation, are attached to the specimen. The device is activated, and the movable upper jaw rises at a constant speed of 250 mm/min., causing the specimen to elongate. The extensometers also rise with the elongation of the specimen, simultaneously plotting the elongation behavior on a graph. The specimen eventually breaks due to the stress applied. The tensile strength at the moment of breaking is displayed in MPa, and the elongation at break is shown as a percentage on the screen. At Kabkom Chemistry, the Zwick/Roell tensile, tear, and elongation test device is used to routinely control and verify the mechanical performance of the produced cable compounds. This device is also employed for new product development studies and comparative sample analyses, enhancing the laboratory’s expertise.
