1. Technical requirements for surface quality of explosion-proof motors
The surface quality requirements for the castings of explosion-proof permanent magnet motor bases shall be as follows: surface treatment shall meet the requirements, no traces of sand shall be removed after the castings are cleaned, and the defects of the castings such as pores, shrinkage cavities, trachoma and shrinkage on the surface shall not exceed the requirements. The depth of the defect should be less than the machining allowance, the area is not limited, no traces should be left after processing, the depth of the defect should be less than the machining allowance, the area is not limited, the surface roughness after processing should meet the requirements, no cracks and cold separation, the processing part The damage is no trace after processing.
2. Other technical requirements
The welding machine seat of the explosion-proof permanent magnet motor checks whether the welding surface has defects such as air holes, undercuts, inclusions, welding flow and surface cracks; the main technical parameters such as the machine base, end cover, bearing cover and junction box shall meet the requirements of the inspection drawings. Have valid inspection report and valid explosion-proof electrical parts production qualification certificate or explosion-proof electrical production license; if the procurement of explosion-proof motor casing is used for our factory safety certification or production license product, it should be confirmed that it meets the requirements for certification product conformity.
