Abstract: With the rapid development of science and technology, product manufacturing process becomes more complex and quality information formed during the manufacturing process is also constantly expanding. Aiming to solve the quality information storage and retrieval problem in cement equipment manufacturing enterprises, a new method of quality information management is proposed: First, a quality information tree is used to describe the manufacturing process, product structure, and the relationship between quality information; Then a quality information coding system is set up to standardize and store quality information, which includes XML caching technology to achieve the quality information retrieval. The method is used in the quality information management of a limestone reclaimer manufacturing process and the example shows that this method can solve the cement equipment manufacturing process quality information management issues.

Key words: quality information tree, quality information coding, quality information storage, quality information weights, XML cache