生产电焊条所用的矽铁多年来一直沿用苏联红钒钝化法,所钝化的矽铁与焊条粘接剂发生化学反应,导致药粉硬化、焊条表面发泡,严重影响焊条质量,造成很大浪费,而且此法还污染环境,危害工人健康。我们在不投资不耗电的情况下,合作攻关,采用无味、无毒、无臭的化学剂,通过适当触媒剂,经多次试验,研制 For many years, the ferrosilicon used in the production of welding electrodes has been subject to the Soviet Union’s red vanadium passivation method for a long time. The passivated ferrosilicon and the adhesive of the electrode undergo chemical reaction, resulting in the powder hardening and the electrode surface foaming, which seriously affects the quality of the welding rod. Waste, but this law also pollutes the environment, endangering the health of workers. We do not invest in electricity without the case, the joint research, the use of tasteless, non-toxic, odorless chemicals, through the appropriate catalyst, after many tests, development