瑞典VOLVO汽车公司与沙特电气公司(SATT—ELEKTRONLUND AB)共同研制了基于微型电子计算机技术的新一代SV—30型点焊控制器,已于1980年投放国际市场。该点焊控制器有许多特点,其中之一是采用新技术进行热量调整:利用电流过零 Swedish Volvo Car Company and SATT-ELEKTRONLUND AB jointly developed a new generation of SV-30 spot welding controller based on micro-computer technology, which was put on the international market in 1980. The spot welding controller has many features, one of which is the use of new technology for heat adjustment: the use of current zero