Disadvantages of UHMWPE Sheet
Its melts at around +130°C to +136°C
Not advisable to use UHMWPE at temperatures exceeding 80°C to 100°C for extended periods of time.
Under load, UHMWPE will deform continually as long as the stress is present, an effect known as creep.
Probably unsuitable to being used higher load items or components
How well does UHMWPE Sheet perform?
UHMWPE sheet has an incredible resistance to abrasion. It will outperform almost any engineering plastic for abrasion resistance and is probably one of the best materials for lining chutes and hoppers for products such as sand, aggregate and concrete or any other highly abrasive moving product.
Another important property is it's incredibly low co-efficient of friction. It is one of the lowest of all engineering plastics and will produce components with a very high life span with very low drag, which means very little will stick to it. Its also resistant to many dilute acids, solvents and cleaning agents.
UHMWPE has a maximum continuous operating temperature of plus 90°C and a short term operating temperature of plus 120°C. Its a very tough material, with the highest impact strength of any thermoplastic presently made.
What is UHMWPE Sheet used for?
Because UHMWPE sheet has excellent abrasion resistance it is often used for lining chutes and hoppers in aggressive and highly abrasive environments, which is why you’ll find it at the quarry. Its also found in food production environments where high volumes of containers like cans or bottles need to be guided along conveyors or production lines.
Because it has very low moisture absorption, it is also found in some high demand areas of marine applications. UHMWPE is also sometimes used in some cryogenic components due to its low operating temperature abilities.
Due to its resistance to wear and impact, UHMWPE continues to find increasing industrial applications, including the automotive, manufacturing and bottling sectors.
Machining characteristics
High speed steel tooling is recommended with lots of back rake, side rake and clearances, and a generous nose radius. It can be a also bit of a challenge to clamp UHMWPE parts without distorting them. Also, when drilling, the drill will tend to screw into the sheet material.
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