去年(86)一年间,关于VPS的资料在各种杂志和会议上接连不断地发表,各种话题议论纷纷。去年由于在日本迎来了VPS的真正普及,所以可叫做“VPS”年。在软钎焊工艺中,VPS技术的特点为: (1)再流温度一定(由于利用液体的沸点,其蒸汽的温度是一定的); (2)加热均匀(因使用的液体的导热系数大); (3)气氛为惰性(由于蒸汽是氟系惰性液体,电极和钎料不会氧化)。 Last year (86) a year, the VPS information published in various magazines and conferences one after another, all kinds of topics are discussed. Last year due to the real popularity of VPS ushered in Japan, it can be called “VPS” years. In the soldering process, VPS technology features: (1) reflow temperature must be (because of the use of liquid boiling point, the temperature of the steam is certain); (2) uniform heating (due to the large thermal conductivity of the liquid used ); (3) the atmosphere is inert (because the steam is a fluorine-based inert liquid, the electrode and the solder will not be oxidized).