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我所主要从事有色金属的研究,其中一部份是铜管的试制和小批量生产,主要是φ22×1.25mm以下的深度加工薄壁小管,最小可达φ1.5×0.2mm。在我所现有的轧头机只能轧制φ18以下的管材头,而且原压力机的轧头模具,使用时很不方便,如使用不当就会出事故。为此,笔者经过实际操作和详细观察分析,对模具进行了重新设计。为了达到使管材在φ10～φ22mm范围内进行轧头,其设计操作程序如图1。管材进入A区间,一次压成扁形,再进入B区间压成三个谷峰,将管材转动90度后进入C区间,经过1～2次冲压即成形,这样就可进入拉伸阶段。
I mainly engaged in non-ferrous metals research, part of which is the trial production of copper and small batch production, mainly the following thin-walled φ22 × 1.25mm thin tube, the smallest up to φ1.5 × 0.2mm. In my existing rolling machine can only be rolled φ18 below the pipe head, and the original press rolling die, the use of very inconvenient, such as improper use of an accident. To this end, the author after the actual operation and detailed observation and analysis of the mold has been redesigned. In order to achieve the pipe in the φ10 ~ φ22mm range of rolling head, the design and operation of the program shown in Figure 1. A pipe into the interval, once pressed into a flat, and then into the B interval pressed into three valley, the pipe rotated 90 degrees into the C range, after 1 or 2 times stamping that is shaped, so you can enter the drawing stage.