On-site investigation should not be subjective, that is, the situation should be objective and comprehensive, seeking truth from facts, the situation must ensure that the original, on-site investigation of the authenticity of direct impact on the results of the trial analysis and conclusions of the correctness.
The ' of the experimental research and analysis stage is more complicated, which is the key stage of the quality analysis of forgings, the quality of the 诙 stage work directly affects the correctness of the judgment and the accuracy of the cause analysis, the work of this phase must be combined with the work of the field investigation stage.
Forging factory
At this stage, first of all, to find out the objective reflection of the quality of forgings, the parts, macroscopic and microscopic morphologies of forgings defects are analyzed, and the properties of the defects are analyzed by macroscopic and microscopic tests and supplemented by chemical compositions, mechanical properties, and raw materials, and when necessary combined with the process execution and the touch-fitting test, Identify the causes of defects or quality problems.
At this stage, we should also pay attention to select the appropriate test method and test means to avoid the error of analysis conclusion due to the problem of test means or method or improper analysis of ideas.
In the process of testing and analysis, it is necessary to carry out on-the-spot investigation to eliminate the possibility of influencing the correctness of the analysis conclusion due to external factors interference.
In the stage of solving the problem, the paper puts forward feasible preventive measures and solutions based on the reason of accurate forging defects.
This includes the forging equipment, heating equipment, production environment, the use of raw materials, forging technology, such as the poor quality of the people put forward suggestions and measures, and to be verified in the production practice, and constantly amend the improvement measures to make the proposed improvement measures and preventive measures are practical, correct or even advanced, So that the quality of forgings can be continuously improved