Implementation details of quality evaluation system for manufacturing enterprises of large piston compressors

Abstract

Abstract In a former paper by the authors (Guangfan Gao et al., 2017), an evaluation system for Chinese manufacturing enterprises of large piston compressors was established for the proper evaluation of production quality. In addition to the first three levels, the fourth level indices are needed, and therefore introduced in this paper. There are 35 and 47 items for the two branches of “Man” and “Soft power” respectively. In addition to the four levels, potential faults and accidents are also an integral part of compressor quality. Piston rod, for example, has its complexity of fault factors illustrated. We put forward two ways for malfunction factors to participate in evaluation. One is weight allocation of each element in all levels based on the multi-factor malfunction correlation matrix. The other is a general first-level correction of malfunctions based on product accident statistics.