250馬力鋼質漁輪的艏柱和艉柱,由于另件尺寸較 大,因此采用分段澆鑄和鍛造后,再用电焊連接成整体。原来采用手工焊接,但化費工时太多,一个接头要化4～5小时,还要消耗不少优質焊条。为此,我們試驗了艏柱和艉柱的板極电渣焊接。艏柱是用CT-3銅鍛成的,艉柱是澆造的CT-3鋼,它們的形状如圖1和圖2所示。 250 horsepower steel fishing vessels pylons and pillars, due to the size of the larger pieces, so the use of segmented casting and forging, and then welded into a whole. The original manual welding, but the cost of working hours too much, a joint to be 4 to 5 hours, but also consume a lot of high quality welding rod. For this reason, we experimented with plate electroslag welding of pillars and pylons. The pillars are made of CT-3 copper, and the pillars are poured CT-3 steel. Their shapes are shown in Figure 1 and Figure 2.