Suitable for testing the hole width of steel plate at different temperatures

摘要

Suitable for testing the hole width of steel plate at different temperatures, a hole width test machine, which is a hole width test machine (1),a cone stamp (2),comprises a top-form holder (3) and a ring matrix mounted on the bottom of the top-form holder (4), characterized by a support platform (5) firmly installed on the top surface of the test bench (1-1), where the centre platform has a centre hole centred on the operating table of the test machine, with a test steel plate placement device (6) on the upper surface of the platform, with an increased edge (6-1) on the outside of the test steel placement device, where a temperature measurement element (7) is installed in the test steel plate placement device,where in the centre of the test steel plate placement device there is a mounting hole for the cone stamp which is concentric to the support platform, with an oil cylinder (8) vertically installed in the centre hole of the support platform, the piston rod of the oil cylinder being connected to the cone stamp (2), where a cooling coupling tube (9) is mounted on the outer surface of the support platform, the cooling coupling tube is connected to the cooling unit, with an insulating cover (10) on the outside of the cooling coupling tube, and where an insulating material of polyurethane foam is added between the insulation cover and the cooling coupling tube.