东风_3型内燃机车作架修时经常发现转向架支承装置油箱底面密封处渗油、漏油。以往我们只是在密封垫处涂上白铅油,这样仅能解决轻微漏油,后来也曾经用过焊结方法,这样虽然堵住了漏油,但不符合机车部件原设计要求,为了堵漏油往往使焊结焊波凸出密封处凹 Dongfeng _3 diesel locomotive for repair often found bogie bearing tank bottom seal leakage, leakage. In the past, we just painted the white lead oil seal, so that only to solve the slight oil leakage, and later also used the welding method, although this blocked the oil leakage, but does not meet the original design requirements locomotive parts, in order to plug Oil often causes the solder wave to protrude out of the seal recess