ASTM E290, ISO 7438 和JIS Z2248标准描述了金属材料延展性弯曲测试的要求。弯曲测试提供了材料延展性的一种目测指示。导向弯曲测试方法要求试样被加载在它的中心两端由心轴或柱塞支撑。试样被弯曲到预先确定的角度或直到试样断裂。目视检查试样的凸出面看是否有裂纹或缺陷，根据裂纹的尺寸和材料规范中允许的缺陷来判断是否失效。
Bluehill Universal Software is built from the ground-up for touch interaction and an intuitive user experience. Discover simpler and smarter testing with features such as pre-loaded test methods, QuickTest in seconds, enhanced data exporting: and Instron Connect – a new feature that provides a direct communication link to Service. Users of previous versions of software such as Bluehill 2 and Bluehill 3 can easily upgrade to the newest version of Bluehill.
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Featuring a dual test space and single footprint, DX Models are designed for high-capacity tension, compression, bend/flex, and shear testing.
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Featuring a dual test space and long test stroke HDX Models are designed for high-capacity tension, compression, bend/flex, and shear testing.
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The Instron® Industrial Series KX Models are designed primarily for high-capacity tension testing. Featuring an ultra-large single test space and fixed-height crosshead, these frames deliver advanced testing capabilities for many applications and are available in capacities ranging from 600 - 1500 kN (135,000 - 337, 500 lbf). Understanding the critical importance of operator safety, the KX Models incorporate high-quality materials, components, and craftsmanship.
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