生产动铁结构的弧焊变压器(以下简称焊机)的各制造厂,为了改善和克服该焊机因电磁振动大所引起的噪音问题,一般是在动铁芯传动机构的两旁装设二条固定金属或塑料轨道,利用轨道本身的机械强度来抑制和克服电磁力对动铁芯的作用,以达到消除噪音的目的。显然,这是一种办法,但不是根本的办法。该焊机的规范调节是靠改变焊机本身漏抗来实现的。当动铁芯全部摇出时,得到最大输出电流,由于取消了磁分路,附加漏抗不存在,焊机仅有空气漏抗,因而作用于动铁芯的电磁力几乎等于零,焊机噪音达到最 In order to improve and overcome the noise problem caused by large electromagnetic vibration of the welder, the manufacturers of the arc welding transformer (hereinafter referred to as welding machine) for producing the moving iron structure generally have two fixed Metal or plastic track, the use of the track itself mechanical strength to suppress and overcome the electromagnetic force on the moving core, in order to achieve the purpose of eliminating noise. Obviously, this is a solution, but not a fundamental one. The standard welding machine is adjusted by changing the leakage of the welder itself to achieve. When the moving core all shake out, get the maximum output current, due to the elimination of the magnetic shunt, additional leakage does not exist, the welder only air leakage resistance, and thus the electromagnetic force acting on the moving core is almost equal to zero, the machine noise Reach the most