Railway vehicle axle marks dozen basic requirements

Railway vehicle axle marks played 2020 - basic requirements 08 - 19 railway vehicle axle including axle manufacturing marking, wheel for assembly and special marking. Axle manufacturing tag # axle steel smelting smelting, steel axle steel tag, axle forging exergue, axle forging sequence number ( Shaft) Type, axle shaft, axle manufacturing ultrasonic penetration testing inspection seal marking, ultrasonic penetration testing workers responsibility seal tag, etc. Wheel assembly of axle manufacturing tag, and special marking should be in accordance with the provisions, regulations on axle end face area. Railway vehicle's axle marks shall comply with the following requirements: bring about axle manufacturing tag must be concentrated moment to play on the shaft end within a particular sector and permanently retained; Bring round for the first check assembly must be made in axle mark in sectors are arranged in a clockwise sectors within the next hour, wheel assembly again, of assembly mark for the first time the wheels assembly mark of sectors are arranged in a clockwise sectors within the next hour, the left after full play at the right end point, so on. After each sector are played, select the second and subsequent assembly tag can not retain, all the sectors of all tags in addition to, to carve a tag assembly; Bring about change axle shaft, wheel assembly tags within the sector to increase hit 'instead of' inscription and after changing shaft axis type marking, with 'change' word mark all tags must be permanently retained within the sector must be need permanent shaft end tag, in turn, turn to play in the new reform of each sector ( According to the new marks specification) ； Bring the axle wheel seat has a depth greater than zero. 3 and less than 2 mm. 5 mm cross crack after spin in addition to put into the wheel pair, in the assembly of the tag within the sector increasing engraved markers (' + + ' The font is high, the width is 7 mm) With '+ +' word signs, all tags must be permanently retained within the sector; Bring about axle shaft neck nominal diameter smaller than nominal prototype diameter 0. 5 mm axles, the date in the assembly and assembly units D1 tags, carved hit below grade axles tag must keep forever; Restructuring mixer shaft end bolt hole, must be need permanent shaft end tag, in turn, turn to play within the new official seal of each sector ( According to the new marks specification) 。 Mixer axle shaft end tag must play a clear and accurate, and in addition to the prescribed time playing tag, shall not be engraved any other tags. （ Source: the resources of railway vehicle platform)