HIGH TEMPERATURE PLASTICS | MATERIALS
Carbon fibre filled PEEK has traditionally been used for anti-lock brake system (ABS) and electron- ic stability control (ESC) components, such as tappets, poppets and plungers. Solvay says the new KT-850 SCF 30 grade enables further metal (aluminium) replacement by improving the flow characteristics of the material and the surface finish of parts.
ABS/ESC plungers play a critical role in the function of the system’s hydraulic unit. The system combines an electronic pump, an electronic control unit (ECU), valves which control braking pressure at the wheels, and sensors that measure the speed of the wheels. The plunger is responsible for operat- ing the valve’s movement by controlling the brake fluid supply. “The replacement of aluminium in precision components, such as ABS plungers, allows for overall cost reductions as well as improved productivity,” says Brian Baleno, Head of Marketing – Transporta- tion at Solvay’s Materials Segment. KetaSpire KT-850 SCF 30 offers the flowability required for filling the parts, which are approximately 15 mm in length, while also meeting the tight tolerances required for ABS/ESC plungers. KetaSpire KT-850 SCF 30
outperformed the processability offered by incum- bent materials, allowing for much higher production yields and an enhanced surface finish, enabling better sealing and mechanical performance. With its PEKK, PEK and ABPBI polymers, Gharda Chemical is aiming at metal replacement in demanding applications across various industrial segments, including aerospace, oil and gas, automotive, electrical and electronics. It says that
Above: Solvay has a new KetaSpire PEEK grade for Precision ABS/ ESC brake and e-mobility components
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IMAGE: SOLVAY
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