The effective hardening depth (surface hardness depth SHD) is the distance between the specimen surface and the point in the layer where the Vickers hardness is 0.8 times the minimum value of the surface hardness, see graph.

Here you will find general practical tips on hardness testing as well as useful information on the most common hardness testing applications such as progression measurements (CHD, NHT, RHT), hardness mapping, weld sample testing and other applications such as the Jominy test. Determination of the hardness curve.

9.1 Case hardening depth (CHD), surface hardening depth (SHD) and nitriding hardness depth (NHD)

有效硬化深度（表面硬度深度，SHD）是指試樣表面與層點之間的距離，其中 維氏硬度 為表面硬度的最小值的 0.8 倍，詳圖。 進行測量的試樣表面必須經過精細加工。 硬度壓痕排列在垂直於試樣表面的一條或多條線上，其寬度在標準中定義。 使用的試驗力為 9.807 N (HV)。 根據自表面算起的距離，我們可以透過測量表面到已計算出硬度限制的距離，從代表硬度的曲線得出 有效硬化深度。 您還有其他有關邵氏硬度測試和我們的硬度試驗機的問題嗎？ 請聯絡我們的硬度測試專 …

Download scientific diagram | Definition of the surface hardness depth (SHD) coefficient from publication: Identification of temperature and hardness distribution during dual frequency...

Prior to first use the equipment must be processed as per the included Anspach Cleaning and Sterilization instructions. At the point of use the device must be cleaned as soon as possible after use to prevent drying of blood, tissue, other biological debris and contaminants on the device.

DIN EN 10328 标准中规定了表面硬化后 有效硬化深度 (DS) 的测定。 有效硬化深度（表面硬化深度SHD）是试样表面和层中特定点之间的距离，该点的 维氏硬度 是表面硬度最小值的0.8倍，如图所示。 要执行测量的试样表面必须经过精加工。 硬度压痕排列在与试样表面垂直的一条或多条线上，宽度在标准中规定。 要使用的试验力为9.807 N (HV)。 在硬度与距表面的距离的关系曲线上，我们通过测量从表面到计算所得的硬度极限的距离来获得 有效硬化深度。 请随时联系我们 …

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