Evaluation of casting surface roughness

When the roughness of the cast surface is lower than the specified grade, it can be finished. After finishing, it can be checked and evaluated. The inspected surface should include the finished surface and the unfinished surface. When there is a dispute between the casting manufacturer and the user about the inspection procedures and results of the sample method, the sample method can be used again for the comparative inspection and evaluation of the casting surface. The number of reinspections, the number and distribution of inspections in each inspection, and the method of evaluating the results of the reinspections shall be agreed upon by the parties, but shall not violate the provisions of the above standards. If there is any dispute over the reinspection results, the arbitration department shall conduct arbitration inspection and evaluation with profilometer. Profiler according to GB/T6062-1985 "contouring method stylus type surface roughness measuring instrument profile recorder and center line profiler" requirements.