Performance Testing of Surface SMT Mounter Machine

Posted by Kensen OuYang on April 2nd, 2019

The "technical law" of equipment performance testing has three characteristics: standardization, objective independence and relevance. It is recognized that the method of evaluating and testing system performance is called GR&R （Gauge Repeatability and Reproducibility）, which can determine the ability of a testing system to continuously repeat the same testing process so as to obtain the reliability index of the testing system. When the uncertainty of the measurement (6 times than the GR&R error) of a testing system does not exceed 25% of the product specifications, the testing system has standard specifications. As far as surface smt mounter machine is concerned, the key is to quickly and accurately place the components on the PB pad printed with a solder paste ----speed and accuracy indicators. Because the speed and accuracy of the equipment are related to many factors, such as component shape, component recognition, PWB manufacturing level, characteristics of the solder paste and the characteristics of the mounter, the errors caused by the equipment should be separated from the process of mounting. 

The ideal method is to reduce other factors that may cause patch errors in the patch process, which is the objective independence of the detection system. The performance parameters of smt chip mounter include: time base parameters, mounting speed (output), variable parameters (measurement value), accuracy, repeatability, attribute defect rate (counting value), reliability, maintainability and applicability, etc. Some of the parameters are related to each other. Only by selecting the minimum set of parameters for testing, which can objectively reflect the actual performance of the equipment and avoid the coupling between the parameters, can the problem of correlation be solved while simplifying the evaluation process. Muji sells professional surface smt mounter machine. Welcome your call!