| 摘要 |
<p>The invention relates to a portable electronic durometer meant to determine the hardness of metal materials and plastics. According to the invention, the durometer is a portable equipment comprising two probes (Sand S), one being destined to determine the hardness of metals and the other being destined to determine the hardness of plastics, an electric connection cable (C) and an electronic unit (U), the probes (Sand S), in their turn, each comprises a cylindrical body (1) provided with a rubber sleeve (2), a penetrator (3) acting upon a material (4) to be tested, a penetrator holder (5), a loading rod (6), a mounting sole (7), a guiding bushing (8), a retaining spring (9), a ball guiding bushing (10), a pre-loading spring (11), a contact rod (12), a pretensioning nut (13), a dynamometric cell (14) with resistive sensors, an electric contact plug (22), and an electronic unit (U) and, while operating in laboratory conditions, the equipment is completed with a fixed structure comprising a frame (24), a cylindrical column (25), a cross body (26), two clamping nuts (27 and 28) with lever, a beat-up lever (29), and a table (30) for the probe to be tested to hardness.</p> |
