一、定碳用纯锡屑的制取法:定碳用的助熔剂纯铜丝,因熔融时易飞溅,致使瓷管内壁沾染严重,影响使用寿命,改用纯锡助熔可以克服此缺点,但纯锡屑不易制作,现介绍用铝锉制取,十分方便。 将1号锡夹在虎钳上,以铝锉将其表层锉去不要,然后在纯锡下垫一张清洁白纸,再以铝锉慢慢锉之,即得理想的既不被氧化又不成条的锡屑,存于玻璃瓶中。 First, the carbon set with pure tin scraps of law: fixed carbon flux with pure copper wire, easy to splash due to melting, resulting in serious contamination of the inner wall of the ceramic tube, affecting the service life, using pure tin flux can overcome this shortcoming , But not easy to produce pure tin pieces, now introduced aluminum file system, is very convenient. The No. 1 tin clip in the vise on the aluminum file to the surface of the file do not want to, and then lay a clean white paper in pure tin, and then file to the aluminum file slowly, that is the ideal is neither oxidized Not a piece of tin scraps, stored in glass bottles.