Product category:
Materials and components
News Release from: Victrex USA | Subject: Victrex Peek polymer
Edited by the Engineeringtalk Editorial
Team on 07 September 2007
Polymer chosen to encapsulate sensor
Victrex Peek polymer offered CG.TEC Injection design freedom when encapsulating one of its sensors.
When CG.TEC Injection wanted to completely encapsulate a miniature sensor using a two-stage duplicate moulding process, it chose Victrex Peek polymer because of its ability to withstand extreme environments and because it offered design freedom due to the ease of processing on conventional equipment The sensor, measuring 10mm long by 3mm in diameter, was developed to withstand the hostile environment of deep drilling operations
This article was originally published on Engineeringtalk on 31 Dec 2001 at 8.00am (UK)
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Deep drilling equipment must be capable of operating under pressures of up to 1400bar and have the ability to withstand the most extreme mechanical forces.
According to Robert Navo, Global Applications Manager for Oil and Gas at Victrex, "Victrex Peek polymer offers a combination of mechanical and tribological properties at the elevated temperatures found in deep drilling operations".
"In that environment, it's not unusual to encounter temperatures ranging between 180C and 200C in the presence of hydrogen sulfide, methane, carbon dioxide, salt water and crude oil".
"Victrex Peek polymer, which has a continuous use temperature up to 260C, offers excellent chemical and hydrolysis resistance along with very stable electrical properties".
Additional characteristics of Victrex Peek polymer include high rigidity and dimensional stability at high temperatures, UL94-VO fire classification with zero halogen content, and very low levels of outgassing extractable ions and wear particles.
Victrex Peek polymer is also being used as an insulating and encapsulating material for connector insulators, condenser housings, potentiometers and coil frames.
CG.TEC's technical and engineering approach to the sensor application made it possible to define a functional and reliable design, guaranteeing perfect impermeability of the assembly, which could be industrialised without damaging the components to be duplicate moulded.
Once the sensor design was approved, CG.TEC developed the mould and regulated it at high-temperatures to guarantee good crystallinity of the Victrex Peek polymer.
The entire process of industrialising and starting production required 1200 hours of work and 330 hours of research and development.
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