1976年春,我厂对纯铝及铝合金进行了三辊斜轧穿孔的管材生产性试验。成批量的试验表明,铝及其合金的一般厚壁管材,能够应用三辊斜轧穿孔生产。穿孔管材的成本、效率和产量,不但优于挤压管材,而且优于空心锭的轧制生产,而性能、内外表面质量也比空心锭轧制管有所提高。 The spring of 1976, I plant on the pure aluminum and aluminum alloy three-roll oblique hole perforated pipe production test. Bulk tests have shown that common thick-walled tubes of aluminum and its alloys can be produced using three-roll oblique-roll piercing. The cost, efficiency and throughput of perforated pipe are not only superior to extruded pipe, but also superior to that of hollow ingot, while the performance and internal and external surface quality are also better than that of hollow ingot rolled pipe.