Product category:
Environmental contamination, noise, dust and fume extraction, sensors
News Release from: E-Components and Chains | Subject: Detectamet/Detecta-thane
Edited by the Manufacturingtalk Editorial
Team on 14 March 2006
Detecta-thane plastic material is
metal-detectable
E-Components and Chains Limited of Pocklington (UK) are pleased to announce the launch of their very own Detectamet/Detecta-thane.
E-Components and Chains are pleased to announce the launch of their very own Detectamet/Detecta-thane Detectamet/Detecta-thane is a metal detectable general purpose compound having good mechanical properties
This article was originally published on Manufacturingtalk on 7 Jul 2004 at 8.00am (UK)
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Detectamet/Detecta-thane is supplied in a range of hardnesses from 25deg Shore A, which is softer than a pencil rubber or an elastic band, to 84deg Shore D which is harder than a golf ball.
When load is applied to a Detectamet/Detecta-thane it deflects, but unrestrained surfaces bulge in sympathy.
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This is because Detectamet/Detecta-thane is incompressible and acts like a fluid capable of changing its shape to the limit of its strength under load.
Strictly speaking this is not compression but, nevertheless, it is the term used in elastomer technology.
Detectamet/Detecta-thane is said to have a higher load bearing capacity than that of more conventional elastomers of the same hardness.
This characteristic permits greater design choices and usually allows the use of smaller components.
ECC/Detectamet can offer guidance on polymer selection and provide indicative load and deflection figures for most compression applications.
Tensile strength and associated elongation are usually measured as part of material and process control regimes.
It is rare that elastomers are used in tension and then only at a small fractlon of thelr ultimate strength.
Even so Detectamet/Detecta-thane has much higher tensile strengths than conventional elastomers.
While resilience is generally a function of hardness in conventional elastomers, this is not true of Detectamet/Detecta-thane.
Detectamet/Detecta-thane can be formulated to give a wide range of resilience values.
An added benefit is that the resilience changes very little between 10C and 100C giving more consistent performance in a variable environment.
When compared to rubber, plastics and metals, Detectamet/Detecta-thane offers outstanding resistance to wear giving many times the life span of these conventional materials.
Detectamet/Detecta-thane can be tailored to suit sliding and impingement abrasion and has a well deserved reputation for its durability.
Detectamet/Detecta-thane will provide excellent service in cold stores and Arctic conditions.
Physical properties change little down to -15C, and while further reductions in temperature result in a gradual stiffening, Detectamet/Detecta-thane is still quite serviceable at -70C.
At higher temperatures Detectamet/Detecta-thane will provide good service up to 90C and is suitable for intermittent use at 120C.
Beyond these temperatures, specially formulated materials are needed.
Selected grades of Detectamet/Detecta-thanes are suitable for use in water at up to 50C.
Water absorption is very low and volume swell is negligible.
This means that precise components can be used safely in water without fear of size changes affecting performance.
High humidity has little effect on Detectamet/Detecta-thanes and a secondary benefit is that these elastomers do not support fungus growth and are generally resistant to such attack.
This makes Detectamet/Detecta-thanes mouldings particularly suitable for tropical environments.
At low hardnesses all elastomers, Detectamet/Detecta-thane included, merely bend under impact.
As hardness rises elastomers and plastics demonstrate a tendency to brittleness and crack under impact.
Detectamet/Detecta-thane has significantly better impact resistance than any material of comparable hardness.
Detectamet/Detecta-thane will resist cracking under repeated flexing.
Selection of the appropriate grade will allow extremely high life spans, with tests proving that in excess of 1,000,000 cycles is common place.
Detectamet/Detectathane will also show excellent resistance to cut propagation and can be used in very thin sections because of its exceptional strength and toughness.
Detectamet/Detecta-thane resembles most other elastomers in that friction decreases as hardness rises.
The coefficient of friction against non-Iubricated surfaces ranges from 0.2 (hard polymers) to 0.6 (soft polymers).
It is possible to machine most grades of Detctamet/Detecta-thane.
The harder grades can be processed on most conventional machine tools, while softer compounds need to be ground or cut with very sharp tools.
Detectamet/Detecta-thane generally has very good insulating properties and can be used for potting and encapsulation.
It is also an excellent material for mounting conductive rails, particularly outside, where it not only provides good insulation but also does not deteriorate.
The combination of compressive and flex characteristics make Detectamet/Detecta-thane suitable for breaking noise transmission paths.
It makes superb heavy duty machine mounts.
Applications: Wearstrips, Guide Blocks, Impact Bars, Gaskets, Conveyor Skirting, Roller Coverings, Scrapers, General Engineering Applications, Liners, etc, etc.
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