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为适应我国电子计算机及其外部设备发展的需要,机械工业部重庆仪表材料研究所已研制成3YC_2Z型打印针,83年底正式通过行业鉴定,装机使用寿命大于1亿字符,达到了国外同类产品水平,现已投入批量生产。 3YC_2Z型打印针具有高的表面硬度、耐磨性、弹性模量、疲劳强度、韧性等综合优良性能,适用于各式针型打印机、针式电传打字机、商用开票机、纸带穿孔机以及各种圆柱形小直径的耐磨元件。主要技术指标如下:
In order to meet the needs of the development of electronic computers and their external devices in China, Chongqing Institute of Metrology and Materials, Ministry of Machinery Industry has developed a 3YC_2Z-type printing pin. By the end of 83, it has passed the appraisal of the industry and its installed life is more than 100 million characters, reaching the level of similar products abroad , Has been put into mass production. 3YC_2Z-type stylus with high surface hardness, wear resistance, modulus of elasticity, fatigue strength, toughness and other comprehensive excellent performance for a variety of needle printers, needle teletype, commercial invoicing machine, tape punch machine and Various cylindrical small diameter wear-resistant components. The main technical indicators are as follows: