L Factory Quality Of Wheelset Fitting Process Diagnosis And Its Quality Management Strategy Research

wheelset is one of the key components of railway car. Wheelsets carry all of weight borth a railway car and transport object, through its own rolling guide train running on the track. Security Of wheelset is not only associated with the use conditions, but closely linked to the overhaul quality of wheelset. the quality of wheelset fitting process is one of the decisive factors in the wheelset maintenance process. With China’s rapid development of railway transportation enterprise, Railway car Bicycle loading capacity is greatly increased, commercial operation rate rise generally, safety requirements getting higher and higher. The new situation of the railway transportation safety requires enterprises to further improve the quality management work of wheelset fitting process. For L factory, Application of Diagnosis Theory with Two Kinds of Quality can quickly find and identify quality problems, find the potential underlying causes of quality problem, and to provide a scientific basis for solutions to problems, evaluation and choose the best scheme, continuous improvement in the quality of wheelset maintenance process and good control of he relative cost of quality diagnosis, also extends a further the Diagnosis Theory with Two Kinds of Quality applications.This report introduces wheelset fitting technology and the related research capacity, the Wheelset fitting press quality situation of L factory were analyzed in detail. Through the statistical analysis to identify the main quality nonconforming of L factory wheelset press fitting process; Through to the L plant wheelset press fitting process analysis selected the quality control process; Through to the process quality control index analysis for L factory wheelset fitting process, determine the key quality index. The report analyzed the problems of wheelset fitting diagnosis system, put forward use Multivariate Process Capability Index Diagnosis Theory with Two Kinds of Quality to solve the problem,establishing the diagnosis system and to determine the diagnostic steps; or L factory wheelset press fitting process of diagnosis; founded out the process variation indexs who influence the final quality. According to the diagnosis result with the actual situation of L factory quality management system and quality control factors,put forward the quality improvement strategy and concrete scheme.This conclusion is:the use of the Diagnosis Theory with Two Kinds of Quality to diagnosis the quality of wheelset fitting process is feasible, effective. Its analysis method and evaluation system for wheelset fitting process with a common operational.