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本文概述了低压铸坯的组织特点,并就实验室和工业试验结果指出:低压铸坯具有良好的高温塑性,在二辊斜轧穿孔机上给予足够的加工可以获得内外表面良好、机械性能合格的穿孔毛管。
The paper summarizes the microstructure of the low-pressure billet. The results of the laboratory and industrial tests show that the low-pressure billet has good high-temperature plasticity. When sufficient processing is available on the two-roller oblique-piercing piercer, the internal and external surfaces are good and the mechanical properties are acceptable Piercing capillary.