Doughness testing machine

• Main Authors: QIU YINGFENG, LIU WEI, TAO TIANPEI
• Format: Patent
• Language: Chinese; English
• Published: 09.11.2021
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The utility model relates to a ductility testing machine which comprises a rack, an upper supporting beam is fixedly arranged at the upper end of the rack, a lower supporting beam is arranged below the upper supporting beam, the rack is provided with a lifting device for driving the lower supporting beam to ascend and descend, clamping devices are arranged on the sides, close to each other, of the upper supporting beam and the lower supporting beam, and each clamping device comprises a fixed plate, a limiting plate and a movable plate. The fixed plate is fixedly provided with two limiting shafts, the two ends of the movable plate are slidably connected with the two limiting shafts respectively, the limiting plate is fixedly connected with the ends, away from the fixed plate, of the limiting shafts, the limiting plate is in threaded connection with a limiting bolt, and the limiting bolt penetrates through the limiting plate to abut against the movable plate. A user puts the end of a sample between the fixed pl