汽车空调系统生产过程检漏能力提升OA

During the operation of the automotive air conditioning system,small leaks in the pipeline can lead to the loss of refrigerant,which in turn affects the cooling effect.The leak detection capability of the production process needs to be improved to avoid such defects cars to cause damage to users.The refrigerant filling process and the refrigerant pressure detection during the initialization process of the air conditioning system in the actual automobile production process are analyzed.Without additional production equipment and manpower,The normal distribution 3σ criterion is used to narrow the standards of the vacuum leakage parameters in the refrigerant filling process.During the initialization of the air conditioning system with leakage in it,the system pressure value will be abnormal.By applying normal distribution 3σ to the maximum and minimum pressure parameters and set up the monitoring values,vehicles with abnormal refrigerant pressures can be detected.Test results show that by inspecting vacuum leakage in the refrigerant filling process and by monitoring the and pipeline pressure,vehicles with minor leaks in air conditioning system can be identified,improving the air conditioning leak detection capability in the entire vehicle production process.