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在生产和科研设备中,有时要用到直径仅为几个微米的金属细丝。例如在卫星通讯地面站的设备上及某些医疗器械上,要用到熔断电流毫安级的保险丝,这种保险丝就是由直径为几个微米的钨丝制成的;此外象热线风速仪的敏感元件也要用到很细的钨丝。由于目前用拉丝方法获得的钨丝还较粗,最细一种的直径在0.01毫米左右。因此为了制得更细的钨丝,就必须寻求其他的工艺方法。试验表明,采用电解加工是一种行之有效的方法。下面介绍一种直径为2微米的钨丝的电解加工方法。需加工的零件如图1所示。钨丝长度为3毫米,原材料直径约为10微米,用点
In production and research equipment, sometimes use a diameter of only a few microns of metal filaments. For example, in the satellite communications ground station equipment and some medical equipment, to use the current fuse melting fuse level, the fuse is made of tungsten wire diameter of several microns; in addition like the hot air anemometer Sensitive components also need to use very thin tungsten wire. Due to the current method of drawing tungsten wire is also coarse, the smallest diameter of about 0.01 mm. Therefore, in order to produce finer tungsten wire, it is necessary to seek other methods. Experiments show that the use of electrolytic processing is an effective method. The following describes a diameter of 2 microns tungsten wire electrolysis processing method. Need to process the parts shown in Figure 1. Tungsten wire length of 3 mm, the raw material diameter of about 10 microns, with points