HC Plastics News: It is reported that Eaton has developed a new polymer air conditioning circuit system, which can effectively reduce the weight of the line, and greatly reduce the complexity of the process and production costs. It is expected to be mass-produced early next year.
Automotive power management giant Eaton Corp has developed a cost-effective and lightweight plastic product that can be used to replace aluminum tubes and rubber components on traditional air conditioning lines in the automotive industry. Eaton said the company's Polymer Air Conditioning Conveying System (PACCS) is made of a blend of thermoplastic materials that withstand high system pressures, chemical resistance to oils and refrigerants commonly used in automotive air conditioning systems, and is 90 % recyclable.
Eaton is testing the sample with an automotive original equipment manufacturer (OME) and expects to begin mass production early next year. Eaton equipped the PACCS system in a car and then tested the system in real-world driving in different weather conditions in Europe. The person in charge of the company said that after testing over 120,000 miles (about 193,000 kilometers), no defects were found in any products.
Klaus Dehnert, vice president and general manager of Eaton’s fluid handling division, said in an interview: “There are also amazing positive feedbacks on the three indicators of noise, shock and stability. At the beginning of the project, aggregation The physical line performs better than the traditional line."
According to Denat, the design of lightweight polymers can reduce the weight by 20%~50% compared with the traditional circuit, and the required parts are also reduced by 40%, which achieves lower system permeability and simple. Manufacturing process and cost reduction of 10% to 15%.
Tom Fiedler, director of production line at the Fluid Transportation Division, said: "The weight reduction has also provided significant advantages for OEMs producing hybrid and electric vehicles. Lightening the weight of cars for electric vehicles (hybrid or all-electric) It is especially important."
Another advantage of the device is improved air tightness, which reduces the use of refrigerant. “The penetration level of plastic is higher than that of rubber,†said Denat. “The flanges of our new system, including the joints, are made entirely of plastic.â€
The preparation, research and development of the PACCS line began in 2012. Since then, Eaton has invested millions of dollars in PACCS research, testing, engineering, equipment, manufacturing and production technologies. Denat said: "We have now completed 70% of the production requirements, which does not include the full automation of the industrialization concept."
Dennat also said: "The flexible, fast-connecting technology of the new polymer air conditioning conveyor system can replace the screw embedding process of the traditional air conditioning system. Because the screw insertion step is not required, this method will greatly reduce the original equipment. Assembly time on the manufacturer's production line." Currently, Eaton is working with automotive OEMs to develop this application and related new specifications. (Beijing University of Chemical Technology Yan Xiazhen compiled) 
Editor in charge: Ye Dan
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