薄带铸轧产品特性及应用进展

薄带铸轧工艺是将快速凝固与轧制变形融为一体的短流程、近终型生产工艺,具有流程短、工序少、能耗低、排放少的优势。通过对薄带铸轧产品进行组织分析及力学性能研究,结果表明,在薄带铸轧的快速凝固、快速冷却、小压下量轧制条件下,产品组织与传统热连轧工艺产品在晶粒形态、晶粒尺寸上具有显著区别。薄带铸轧产品性能波动小、各向同性好、利于焊接、尺寸公差精确、表面质量好,易于生产高强度薄规格产品,在轻量化及“以热代冷”趋势下具有广阔的应用空间。

Product characteristics and application progress of thin strip casting and rolling

The thin strip casting and rolling process is a short-process, near-final process that combines rapid solidification and rolling deformation. It has the advantages of short process, less procedures, low energy consumption and less emissions. The microstructure and mechanical properties of the thin strip casting and rolling products were studied, and the results show that the product microstructure is significantly different from the conventional hot continuous rolling process product in terms of grain morphology and grain size under the conditions of rapid solidification, rapid cooling and small reduction rolling of thin strip casting and rolling.Thin strip casting and rolling products have small fluctuations in performance, good isotropy, easy to weld, precise dimensional tolerances, and good surface quality. It is easy to produce high-strength thin-spec products, and has a broad application space under the trend of light weight and “substituting heat for cold”.