High-performance nylon beats aluminum and rubber in automotive air-conditioning production lines | Plastic Technology

2021-12-13 19:15:53 By : Ms. vivian he

Eaton Polymers' new PACCS production line brings new standards to the industry.

As our June cover story showed, new materials used in automobiles continue to appear in more and more vehicle fields. These include a variety of nylons, including high-performance versions such as amorphous nylon and long-chain nylon. The latter includes the most notable nylon 610, 612 and 510. This allowed me to see for the first time an automotive application using mixed long-chain nylon, which was recently launched by the power management company Eaton.

It is said that the new polymer air-conditioning delivery system (PACCS) production line is a cost-effective and light-weight alternative to the aluminum tubes and rubber components used in traditional production lines. According to reports, the PACCS design is made of mixed long-chain nylon, which reduces the weight by 20-50% compared to the traditional series. The PACCS series are characterized by being more flexible and flexible, having higher packaging efficiency and safety advantages under collision conditions, being able to withstand high system pressures, and providing chemical resistance to all oils and refrigerants.

Other claimed advantages include the ability to replace molded hoses and bulk hoses, reducing components by as much as 40%, thereby reducing costs by 10-15%, and because Eaton’s “quick connect” system eliminates assembly costs and screwing traditional production lines The process of entering the system. It is said that the air tightness is 10 times better than that of traditional pipelines, thereby reducing the amount of refrigerant required. For example, a vehicle that normally requires 24 ounces of refrigerant only needs 21.36 ounces.

In addition, the PACCS production line is not susceptible to heat transfer, so the heat from the engine will not cause cooling to weaken, and 90% of the thermoplastic material in the PACCS production line can be reground for a better "end-of-life" profile and a 50% reduction in CO2 emissions %.

PACCS capabilities cover a wide range of applications, including passenger cars, light commercial vehicles, medium and heavy trucks, buses, harvesters and agricultural tractors. Senior Product Engineering Manager Christophe Schorsch said: “From a product design perspective, this project is highly innovative and demanding. It requires specific technical attributes, such as high thermal, mechanical and chemical properties, and is expected to be in the tradition of suppliers and customers. There is a revolution in the cable industry. Today, we are replacing traditional technologies and establishing new standards in the industry."

At the same time, the PACCS production line has been tested on vehicles where all air-conditioning pipes have been replaced with new materials, and thousands of miles of test mileage have been accumulated, confirming its advantages over traditional production lines. They are also being tested by some customers.

Eaton has a long history of producing air conditioning pipes and components, including high-quality corrosion-resistant pipes for discharge, liquid and suction, internal heat exchange pipes, and plastic quick connectors and recently launched ultra-low permeability hoses. Helps reduce fuel consumption and helps suppress refrigeration losses.

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