The application status of CAPP in China's compressor manufacturing industry is not optimistic: (1) The process design of some enterprises still adopts the manual design method, and the application of CAPP is still blank; (2) After the application of enterprise computer technology and CAD is more popular, the process design becomes The weak link of the enterprise, the input of technical data to the production system becomes the bottleneck of the enterprise to establish a rapid response mechanism; the blank form of the process card is drawn on the CAD, and the design of the process specification is carried out on this basis. This design method also uses computer to assist the process design, but the generated process rules exist in the form of text files, and the enterprise cannot effectively manage the process data; (4) some enterprises have fully realized the process design. Importance, and the purchase of some commercial CAPP system, but because of the company's understanding of CAPP there are still some misunderstandings, therefore, the application of CAPP is not satisfactory. At present, the application of computer technology has penetrated into various fields of the factory. When designing a process, such as applying a computer for process design, the work efficiency and quality of the process department will be greatly improved, and the information processing capability of the process department and various departments of the enterprise will be improved. The ability to communicate information. The application of CAPP technology will shorten the process design cycle, respond quickly to design modifications and changes, and the experience of process personnel can be fully accumulated and inherited, reducing the workload of producing process documents and the possibility of generating errors and establishing a business. The computer manufacturing system lays the foundation. Several major principles of CAPP application in the compressor manufacturing industry As the market competition intensifies, the user's individualized demand increases, and the product variety changes. The domestic compressor manufacturing company shortens the product development and process preparation cycle in order to meet the user requirements. In the market competition, we have gained advantages and made useful attempts in computer application and information engineering. However, the implementation of CAPP has certain difficulties, and the application of CAPP does not effectively improve the efficiency of the process.
The main sources are mechanical impurities that remain in the hydraulic system after cleaning, such as rust, cast sand, welding slag, iron filings, paint and cotton yarn, etc. External impurities entering the hydraulic system, such as through the oil filler entrance and dust entering at the scraper seal. Impurities generated during the working process, such as debris formed by the hydraulic action of the seal, metal powder generated by relative wear and movement, colloid, asphaltene, carbon residue, etc. Due to oxidative deterioration of the oil.
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