The invention discloses an identifying 
system and method for billets on a blanking 
production line of 
train wheels, and belongs to the technical field of manufacturing industry 
informatization. The identifying 
system is composed of a code spraying identifying subsystem, a scanning recognition subsystem and others, after bar stocks are 
cut off through a cold sawing 
machine to obtain the 
train wheel billets through blanking, the end face of each billet is sprayed with a unique identifying code through a code spraying 
machine, each code is composed of eight 
Arabic numerals and a corresponding bar code, the corresponding billet heat number, the specification, the section number, the length, the weight, the number of the cold sawing 
machine, the name of an operator and other basic documents are stored in a data base, when the billets reach the underneath of an image 
scanner, the identifying codes are read by the image 
scanner and compared with an upper computer, the qualified billets meeting production plan batch numbers enter a 
heating furnace in sequence, and the unqualified billets are rejected. The identifying 
system builds basic data for follow-on production of the wheels, product tracking and identifying code attachment, wherein the identifying codes correspond to the product parameters uniquely.