1924, after graduation, Chen Sancai entered the internship of the famous Pittsburgh Westinghouse Electric Manufacturing Company. He studied electrical and refrigeration technology hard and actually became a famous electrical engineer in the United States, but he was determined to return to China to engage in industry and take the road of saving the country through industry. 1926 after returning to China. He runs an Arctic company at No.989 Jing 'an Temple Road (now Maoming North Road), specializing in Frigidare refrigerators in the United States. We also operate ice machines, air conditioners, automatic coal machines, electric fans, instrument motors, national defense equipment, steel boilers, regulating instruments and other electrical equipment. Chen Sancai personally served as the general manager and was a member of the American Society of Air Conditioning, Electric Power, Heating and Ventilation Engineering. At the same time, he is also the vice president of Delaware-based American Engineering Company Limited. He also served as the president of Shanghai Youth Federation and Tsinghua Alumni Association, and participated in the establishment of China Institution of Engineers.

At that time, refrigerators were a novel high-tech product, and many rich people bought refrigerators from Arctic companies. Therefore, Chen Sancai's business is very prosperous and developed. Therefore, his living conditions have been greatly improved, and he has everything from cars to houses. 1930, Chen Sancai and her white American friend Anne Sammeishi, who studied in the United States, held a grand wedding in Hangzhou Xiling Hotel. Before long, Yu had a son named Chen. The success of career and the happiness of family are great satisfaction for the average person. But Chen Sancai kept his original intention. Although he is rich and lives in a society where he leads a life of drunkenness and dreams of death, he never forgets his obligations to the country and the nation, and still actively participates in various social activities and welfare undertakings, dreaming of realizing the dream of saving the country through industry. On the other hand, he often does some charitable things at this time. Whenever schools, hospitals and orphanages encounter difficulties, as long as they find him, he will always give generously. This was well known among business people at that time. However, this learned and ambitious patriotic businessman's dream of saving the country through industry was shattered by the barbaric acts of the Japanese invaders.