Research On Improvement Process Of Railway Locomotive Diesel Cleanliness

Diesel engine cleanliness standards in diesel technology have been listed as a key indicator or Class A quality characteristic values,which directly determines the quality of diesel engine products.If the impurities remains on the surface of the contact part or the oil passage hole,the airway hole or waterway hole,and assembly will be scratched surface precision,the contact surfaces after assembly in the run-in process would be destroyed.If too many minted impurities and sand left in the cavity of non-processed,also affect the performance of the machine,such as obstructing liquidity of cooling water make the diesel engine does not work;oil duct clogged and a series of serious failures.Therefore,it is very important and necessary to solve the problem of diesel engine cleanliness promoting the development of the railway transport and safety of running locomotive.Research work of this paper includes the following four parts:First introduced starting from the structure and working principle of the diesel engine locomotive,Introduced the status and classification of cleanliness of the locomotive diesel engine,and diesel engine cleanliness impact on the quality of the performance.According to different principles of measurement,analysis the semi-quantitative method,weighing method,Iron spectrum detection method and particle counting method applications in the field of diesel engine cleanliness testing,finally cited cleanliness index of the locomotive diesel engine parts,components and machine;Secondly,embarking unclear finishing,cleaning,transport and storage,assembly,four parts of greater impact on the quality of locomotive diesel engine cleanliness.Compared with the domestic and foreign advanced enterprise engine cleanliness standards,analysis and identify gaps.Raised the current main issues locomotive diesel cleanliness exists.Provide the basis for formulate "standard adoption" program to improve engine cleanliness.Then solve the quality problems of locomotives diesel based on philosophy of international standards and foreign advanced standards.To learn the knowledge of "standard adoption" theory,formulate "standard adoption" program;Finally,evaluate the effectiveness of diesel cleanliness "standard adoption "based on the particle counting method,and summarized companies use "adopt standard" method to improve the quality of railway locomotive diesel engine cleanliness.Through methods of the use of international standards and foreign advanced standards continuous improvement of locomotive diesel cleanliness,making the diesel locomotives produced by company not only has a high warranty period,while reducing motorcycle accidents during use;The process of continuous improvement engine cleanliness make the company profoundly realize the importance of enterprise standard in the corporate production process,to urge companies always grasp the international product standards,absorbing advanced technology achievements,guiding the company locomotive produced,for company developed export-oriented economic,to better adapt to the international market and promote the development of enterprises has important significance.