Quality supervision and random inspection is a means for the country to supervise and inspect product quality from different levels and scopes, and motor products are no exception; but from the entire development process of motor product quality supervision and random inspection, motor quality random inspection has changed from the initial The process inspection and inspection method including size has evolved to the result-oriented inspection method of the whole machine performance, that is, the inspection principle is based on the compliance of the performance index of the whole machine.
Different series of motor products have experienced the unified design process of the country or industry to varying degrees. Of course, it is also a product management model under the planned economy. Inspect and measure the size of parts and components during random inspection of the derived machine.
With the change of the design method of motor products, the personalized design based on the technical conditions of each series of products has become a new normal; that is, the standard motors under the constraints of product technical conditions exist in parallel with the special requirements of the motors, which determines the difference. There are certain differences in the internal structure of the motor manufacturers of the same manufacturer and the different stages of the products of the same manufacturer.
According to the actual production and manufacturing characteristics, the national and local product quality supervision and random inspection rules are also changing. With the improvement of the automation and intelligence of machining equipment, the conformity of motor appearance and installation dimensions has become particularly simple, and the focus of spot checks on the whole machine can be more direct and specific, such as the compliance of temperature rise and efficiency indicators of motor product windings, explosion-proof Motor safety compliance requirements, unsatisfied performance such as motor grounding and marking, have become the focus of attention in the spot check process.
In recent years, with the domestic and foreign markets paying attention to high-efficiency motors, the efficiency of motors has become the focus of random inspections of complete machine products. At the same time, the safety performance of explosion-proof motors has also become a key point of random inspections; After the efficiency level has become the main factor that users pay attention to and affects the energy consumption of supporting equipment, the motor efficiency has naturally become a market guarantee indicator for producers; therefore, in the past two years, the country has shifted the focus of spot checks to explosion-proof motors involving safety.
Post time: Apr-25-2023