| 摘要 |
PCT No. PCT/SE85/00291 Sec. 371 Date Mar. 18, 1986 Sec. 102(e) Date Mar. 18, 1986 PCT Filed Jul. 22, 1985 PCT Pub. No. WO86/00844 PCT Pub. Date Feb. 13, 1986.A fluxing agent for soldering, e.g. of electronic components, characterized by consisting of a solution comprising 1-15, preferably 2-12% by weight of nonionic surface active agent and/or another substance with similar capacity to form liquid crystals in the fluxing agent film, 1-80, preferably 1-10% by weight of water, and volatile solvent, preferably at least 70% by weight, and minor quantities of activators which are capable of reacting with impurities on the surfaces subjected to soldering, such as halides and carboxylic acids, and preferably with a weight ratio of nonionic surface active agent to water of 1:8 to 5:1 and especially 0.5:1 to 2:1, and a process for soldering using said fluxing agent. |
