10/19/2023 0 Comments Peek plastic block![]() These materials, characterized by elevated glass transition and melting temperatures, are the best candidates when it comes to metal replacement, as polymers provide the added value of superior properties such as sliding friction characteristics, weight saving, and chemical resistance. However, the truth is that there are whole families of high performance polymers which may be used at permanent service temperatures of more than 302☏ up to over 572☏ depending on the operating conditions. Heat resistant plastic materials are constantly being developed, and becoming more common both in traditional and in high end industrial applications to improve performance and durability.Ĭommon understanding may be that plastics are not normally considered as heat resistant materials. Additives such as PTFE, and graphite considerably improve the sliding and friction characteristics, and the addition of metal fibers and carbon black provide improved electrical conductivity. Using special reinforcing materials such as glass fiber, glass beads or carbon fiber, heat distortion resistance and rigidity can be increased even further. It is this material class that brings the superior properties of polymers - such as sliding friction characteristics, weight saving and chemical resistance - to bear, especially at high permanent operating temperatures. High performance plastics typically have a permanent operating temperature of more than 302☏. Within our material portfolio, you will certainly find the high performance plastics you need for your applications. The aim is to have applications that run smoothly, with minimum maintenance, at the best cost to performance ratio. It can cover many aspects concerning quality, efficiency, durability, speed, throughput or resistance to external factors. The sliding behavior always depends on the overall sliding system, and on parameters like sliding partner, load, sliding speed, surface roughness, temperature and so on.In modern industry, "performance" is a must. The fillers carbon fiber and graphite make TECAPEEK PVX black a superior bearing grade with improved thermal conductivity. The better the thermal conductivity of the part, the faster the heat is dissipated and overheating can be reduced. In order to avoid thermal overload of a bearing, the resulting frictional heat should be dissipated as quickly as possible from the sliding surface of the bearing. Because of these excellent sliding characteristics, they are used in gears, bearings, sliding bearings, and many other applications. PEEK is used where conventional materials (POM, PA / Nylon etc.) would be beyond their limits. With this combination of criteria, this bearing grade material can be used in harsh environments of 100 to 300☌. Improved heat dissipation (reduced frictional heat).Still, many applications call for special PEEK bearing grades as TECAPEEK PVX black, containing a multiple filler system (graphite, carbon fiber and PTFE), to fulfill a combination of requirements: Unfilled PEEK natural is the most balanced material in high temperature environments, where non-lubricated sliding and non-contamination is required. ![]() PEEK bearing materials with excellent heat resistance and durability Polyetheretherketone is often viewed as one of the engineering thermoplastics that tends to command a high price, however experienced users have come to realise the added value that PEEK materials bring by offering the possibility of manufactured parts that are lighter, stronger and able to survive longer periods under harsh conditions. PEEK plastic is often used in hot water or steam environments because it maintains physical properties such as flexural and tensile strength at a high level despite the severe environment. Parts manufactured from high temperature plastic PEEK polymer can also operate at temperatures up to 260☌ (480☏) and have a melting point around 341☌ (646☏). PEEK is a unique semi crystalline, engineering thermoplastic that also offers excellent chemical compatibility. It is extruded in sheet, rod and tube that may use Victrex® PEEK 450G or Solvay KetaSpire® KT-820 polymer. PEEK material (chemically known as polyetheretherketone) is manufactured by Ensinger in standard stock shapes for machining.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |