• Globe Enterprises

Heat Deflection Temperature Tester

Globe Enterprises is engaged in the manufacture and export of scientific equipment and material testing machines. The company offers a Heat Deflection Temperature Tester. The heat deflection temperature of plastic materials is the temperature at which the material deflects by a specified amount under the action of a specified stress. It is determined by supporting a rectangular test specimen over two cylindrical edged blocks and pressing it at the centre of the supported span through a cylindrical edged loading tip. The test specimen, along with the supports and the loading frame, is kept in a high temperature bath whose temperature is slowly raised. The temperature at which the test specimen deflects through a predetermined distance is the heat deflection temperature of the material under test. The standards are: IS 867-1963 – Methods of Test for Phenolic Moulding Materials; and ISO 75-1-1993 Plastics – Determination of Temperature of Deflection under Load. Technical details: dimensions of the test specimen 3 to 4.2 mm wide 9.8 to15 mm thick 120-10 mm long; distance between supporting edges – 100-2 mm; radius of supporting and loading edges – 3.0-0.2 mm; and temperature up to 300°C (least count 1°C); deflection measurement – 0-10 mm (least count 0.01 mm). The other range of products includes: rubber testing machines, plastic testing machines, footwear testing machines, foam testing machines, leather testing machines, coated fabric testing machines, fabric testing machines, paper products testing machines and foam testing machines.