我厂修理的艉軸,其直徑一般在250～400公厘之間。根据長期观察結果,产生在鍵槽底部角偶处和键槽前部边沿的軸面的裂紋一般較短,但深度較大;在稍头首端的裂紋一般較淺,但長度較大,裂紋長度經常达軸颈的半周到一周(見图1所示)。这些裂紋我們均采用电弧焊补方法修理。几年来,修理了大量艉軸,在使用中証明效果極为良好。 I plant repair shaft, its diameter is generally between 250 to 400 mm. Based on long-term observations, cracks on the axial faces at the corners of the keyways at the base and at the front edges of the keyways are generally short but deep; the cracks at the head of the head are generally shallower but longer in length and the length of the crack often reaches Half a week for the journal (see Figure 1). We use arc welding repair these cracks. In recent years, repaired a large number of shaft, in use proved to be very good.