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前言打印针是KD—8型针型控制台打印机上的关键零件之一。这种φ0.35×107毫米的细而又长的打印针,要在400次/秒、打印速度100字符/秒的高速下运转,必须具有良好的强度、韧性及耐磨性,才能使该机稳定可靠。
Introduction The print pin is one of the key parts on the KD-8 needle-type printer. This thin and long print pin of φ0.35 × 107 mm, which operates at a high speed of 400 strokes / second at a printing speed of 100 characters / second, must have good strength, toughness and abrasion resistance to enable the Machine is stable and reliable