Finish is an important indicator of the surface roughness of the bronze bushing, which directly affects its friction characteristics and wear resistance in mechanical assembly and operation. The following are the precautions to be taken when inspecting the finish:
Use appropriate measuring tools:
Commonly used measuring tools include roughness meters, which are used to accurately measure the Ra value of surface roughness.
For more critical surfaces, optical microscopes or 3D surface measurement equipment can also be used.
Inspection position selection:
Measurement of finish should normally be carried out on critical mating surfaces (e.g., the inner or outer surface of a bronze bushing) to ensure that the friction properties of these areas meet the requirements.
Cleanliness requirements:
Before measurement, it should be ensured that the surface of the bronze bushing is clean and free of oil or impurities, otherwise the accuracy of the test results may be affected.
Consistency of measurement conditions:
In order to avoid errors, measurements should be carried out in a constant temperature, dry environment and tools should be calibrated.
Effect of finish grade on performance in use:
Bronze bushing with high finish can reduce friction and wear, and improve their durability; however, too high a finish may increase processing costs, so it is necessary to choose a reasonable finish grade according to the actual application scenario.
Through the strict inspection of appearance and finish, we can ensure that the bronze bushing has good performance and reliable service life in the actual application.
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