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一台华山牌YWB210-400P型路拌机配装康明斯NT85-400型柴油机,由于放完水散热器里的冷却水后,未将机体和机油散热器里的冷却水放尽,造成水道纵向冻裂,裂纹长约22 cm。由于机体材料及裂纹部位特殊,采用传统焊修工艺有难度。经反复论证后,决定采用黏接修补。(1)打开机体上所有的放水阀,让存水流净,再用喷灯反复烘烤,把裂纹和水道烘干,用抛光机打磨机体外部的漆皮,仔细检查裂纹的起始点,并抛光裂纹部位。(2)用角磨机沿裂纹开槽,槽宽3～4cm,
A Huashan card YWB210-400P road mixer equipped with Cummins NT85-400 diesel engine, put the water radiator after the cooling water, the body and oil radiator cooling water is not exhausted, causing the waterway longitudinal frozen Crack, crack about 22 cm. Due to the special material and crack site, it is difficult to adopt traditional welding process. After repeated demonstration, decided to use adhesive repair. (1) Open all the body drain valve, so that the water flow net, and then blow torch repeatedly baking, the cracks and waterways drying, polish machine with polished outside the body, carefully check the starting point of the crack, and polishing crack sites . (2) with angle grinder along the slotted groove width 3 ~ 4cm,