一、前言目前,国内对国产材料试验机的技术改造措施较多,现就我厂对常用的DLY—60型万能材料试验机技术改造措施作以介绍。我们在该试验机上采用了电测技术,经技术改造后不但增加了测试功能,还提高了测试精度。不仅能测试(σ_p、σ_(0.01)、σ_(0.05)、σ_(0.2)、σ_s、σ_b及拉伸硬化指数n,还能开展k_(1C)、J积分等断裂力学方面的测试工作。其配套电测仪器,适用于我厂的瑞士产ALFRED I. Preface At present, there are more domestic technological innovations for domestic material testing machines, and the introduction of the technological transformation measures of our common DLY-60 universal testing machine is introduced. We use the test machine on the electrical measurement technology, not only by the technical transformation of the test increased functionality, but also improve the test accuracy. It not only can test the fracture mechanics such as k_ (1C), J_integration, etc., but also can test σ_p, σ_ (0.01), σ_ (0.05), σ_ (0.2), σ_s, σ_b and tensile hardening index n Supporting electrical measuring equipment, suitable for our factory in Switzerland ALFRED