在华主席抓纲治国战略决策指引下,我们和车间工人、干部和技术人员相结合、继试制成功3.8×700×700毫米板材之后,最近经过试验,将C—103铌合金220毫米直径铸锭挤压成功60×170×1500毫米板棒,为试制大规格铌合金板材创造了条件。其板棒挤压的工艺参数如下: Under the guidance of Chairman Hua’s strategy of running the country under the rule of rule of law, we combined with the workshop workers, cadres and technicians. Following the successful trial of the 3.8 × 700 × 700 mm plate, we recently tested the C-103 niobium 220 mm diameter ingot Squeeze the successful 60 × 170 × 1500 mm bar, for the trial production of large-size niobium alloy sheet to create the conditions. The board stick extrusion process parameters are as follows: