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发明公开
CN105102679A 热轧用钛铸坯以及其制造方法 有权

热轧用钛铸坯以及其制造方法
摘要：
本发明涉及一种包含工业用纯钛的热轧用钛铸坯，作为轧制面的表面中，最表面具有包含针状组织的组织微细化层，前述组织微细化层的内侧具有包含针状组织的内侧组织微细化层，与前述内侧组织微细化层相比更内侧为铸造凝固组织，前述组织微细化层与前述内侧组织微细化层相比为更微细的组织，前述组织微细化层为自表面至深度1mm以上且不足6mm的范围，前述内侧组织微细化层在前述组织微细化层的内侧、为自表面至深度3mm以上且20mm以下的范围。
摘要（英）：

A titanium slab for hot rolling, made from an industrial pure titanium, wherein a structural refinement layer comprising an acicular structure is present on the outermost surface of the surface representing the rolling surface, an inside structural refinement layer comprising an acicular structure is present on the inside of the structural refinement layer, and a casting solidification structure is present further inward from the inside structural refinement layer, the structural refinement layer being more refined than the inside structural refinement layer, the structural refinement layer being present at a depth in a range of 1 mm to less than 6 mm from the surface, and the inside structural refinement layer being present on the inside of the structural refinement layer and at a depth in a range of 3 mm to 20 mm from the surface.

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