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发明公开
CN103698177A 用于测定取向硅钢涂层给予钢板拉应力的试样处理方法 无效 - 驳回 转让

用于测定取向硅钢涂层给予钢板拉应力的试样处理方法
摘要：
本发明涉及一种用于测定取向硅钢涂层给予钢板拉应力的试样处理方法，包括如下步骤：按尺寸切取取向硅钢片试样；将取向硅钢片试样的一面及四个边部通过聚酰亚胺薄膜覆盖；酸洗取向硅钢片试样，酸解去掉未覆盖聚酰亚胺薄膜一面的绝缘涂层及硅酸镁底层；除去覆盖的聚酰亚胺薄膜。由于使用了聚酰亚胺薄膜，可以快速的覆盖在取向硅钢片试样表面且去除容易，节省了人力、操作时间和成本；聚酰亚胺薄膜去除后无残留，不对后期拉应力的测量产生影响，减少了测量误差。
摘要（英）：

The invention relates to a sample processing method for measuring pulling stress of a steel plate supplied by an oriented silicon steel coating. The sample processing method comprises the following steps of cutting an oriented silicon steel sample according to the size, covering one surface and four edge parts of the oriented silicon steel sample with a polyimide film, carrying out pickling on the oriented silicon steel sample, carrying out acidolysis to remove an insulating coating and a magnesium silicate bottom layer on one surface which is not covered with the polyimide film, and removing the covered polyimide film. According to the sample processing method provided by invention, the polyimide film is utilized fjor rapidly covering the surface of the oriented silicon steel sample and is easy to remove, the manpower, the operation time and the cost are saved, the residues are not left after the polyimide film is removed, the measurement on the later period of pulling stress is not influenced, and measuring errors are reduced.

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