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一、轴承合金结合性能检验方法综述 用作滑动轴承减摩材料的合金一般多为贵重金属。为节约贵重金属,同时减小轴承尺寸和提高轴承强度或承载能力,本世纪初出现了双金属轴瓦。就是通过轧制、铸造或烧结的方法在轴承钢背上复盖一层(或两层)轴承减摩合金。为保证轴承工作的可靠性,轴承减摩合金与钢背要具有良好的结合。为检验合金与钢背的结合状态,国内外研究出了许多种检验方法:如听音法、折弯法、凿法、锤击法、Chalmers法、超声波法、X—射线法和液体着色渗透法。听音法、折弯法、凿法、锤击法是简单的检验方法。可以方便地用在双金属轴瓦生产线上、检验合金与钢背的结合质量。但它们是经验性的和定性的检验方法。目前国内外最常用的破坏性、定量检验方法是Chalmers法,亦即国际标准ISO4386/2—1982 《滑动轴承—多层金属轴承,第2部分:结合(?)度破坏性试验方法(合金厚度≥2mm)》所规定的方法。
First, the bearing alloy combination of performance testing methods Overview Sliding bearings for anti-friction materials are mostly precious metals. Bimetallic bearings appeared at the beginning of this century in order to save precious metals while reducing bearing size and increasing bearing strength or bearing capacity. Is through the rolling, casting or sintering method to cover the bearing steel back (or two) bearing anti-friction alloy. To ensure the reliability of bearing work, bearing anti-friction alloy and steel back to have a good combination. In order to test the bonding state between alloy and steel back, many kinds of testing methods have been developed at home and abroad: listening method, bending method, chiseling method, hammering method, Chalmers method, ultrasonic method, X-ray method and liquid coloring penetration law. Listening, bending, chiseling, hammering method is a simple test method. Can be easily used in bimetal bearing production line, testing the quality of the alloy and steel back. But they are empirical and qualitative test methods. At present, the most commonly used destructive and quantitative test method at home and abroad is the Chalmers method, that is, the international standard ISO4386 / 2-1982 “Plain bearings - Multilayered metal bearings, Part 2: Combined destructive test method (alloy thickness ≥ 2mm) ”the provisions of the method.