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The Test Technique and Evaluation Method of Used ExcavatorTags: used mini diggers for sale excavator machine for sale2014-01-24
Because of the importance of the test technique and evaluation method of the used excavator, the government formulated excavator product quality. The test purpose for the used excavator testing is to check excavator product quality, in order to determine the actual parameters, analysis of excavator technical and economic indicators. To ensure the working condition of used excavators under different work conditions, and adopt new materials, new technology, and new structure of the real possibility. According to the purpose of the test can be divided into different types testing. Firstly, it is the new type of prototype test of the used excavator. Whether the parameter is consistent with the design of new prototype or not should be determined. Also the reliability of the test prototype, whether both of them should produce or supply national related departments testing must be carried out before the test or not. The new research and development production will be the prototype test object.
Secondly, it is small batch trial production test of the used excavator. Small batch production of the excavator should be tested under various conditions to determine the technical and economic indexes and to review manufacturing processes. The test object is the test prototype for small batch production of the used excavator. Thirdly, it is the factory acceptance test of the used excavator to check the parameters of the mass production of the product and quality. The entire main test is to determine the major performance parameters and the factory product quality. The production machines are the test objects of the used excavator.
According to the nature of the test can be divided into performance test to check the technical performance indicators, reliability test and so on. Test the mechanical structure under various working conditions long-term operation's ability to resist damage, the inspection factory manufacturing quality and the determination of mechanical life of the used excavator. Also includes the heavy components test bench of the used excavator and so on. No matter what kind of experiment was carried out to test the standards and specifications should be according to the state regulation and formulate concrete test outline. The experiment includes the content of the outline of the purpose and requirements, test procedures and test conditions. Also the measured projects and used the main equipment should list for the test outline.
How to choose the test items for the used excavator should obey the principles. The crawler excavator products should be carried out according to the national standard or enterprise standard before the type testing. The main structures, material, key technology should be significant changes are safety device and affect product safety performance. New products with different specifications should meet the requirements according to the relevant laws, regulations and safety technical specification request type testing of the General Administration of Quality Supervision.
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