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日本千叶工业大学工业科大野研究室(大野笃美教授)最近研究成功了一种新的连续铸造法,该法用加热铸型的办法来控制金属的凝固顺序,使内部首先凝固。这和传统的方法相比,其优点是内部无缺陷,而且能够得到表面平滑的单向凝固组织。用这种方法来铸造细棒、薄板及断面形状复杂的铸件或者用来生产无缺陷的高级材料,是十分有利的。传统的连续铸造法是使铸型冷却,金属从表面向中心凝固。结果材料呈横向结晶,铸件内部杂质和气体聚集,而且在把铸件从铸型中取出时,由于铸件的摩擦,将会在表面产生伤痕和裂纹等。大野教授试验的方法不是冷却铸型,而是在铸造
Recently, a new continuous casting method was successfully researched by Ohno Research Laboratory, Industrial Division, Chiba Institute of Technology, Japan. The method uses a heated mold to control the metal solidification order and solidify the interior first. Compared with the traditional method, this has the advantage of no internal defects, and can get a smooth surface of the unidirectional solidification organizations. In this way it is advantageous to cast thin rods, thin plates and castings with complex cross-sectional shapes or for the production of high-quality, defect-free materials. The traditional continuous casting method is to make the mold cool, the metal from the surface to the center of solidification. As a result, the material is crystallized in the horizontal direction, impurities and gases accumulate inside the casting, and when the casting is removed from the mold, scratches and cracks are generated on the surface due to the friction of the casting. Professor Ohno’s test method is not cooling the mold, but in the casting