112
APPLICATION TECHNOLOGY
nullntsman helps
study of Sea lions
nullraldite
null
is being used to help null nd out more about the
diving behaviour of young sea lions who currently live
on the nullalapagos islands.
The nullalapanullos Sea nullion Pronullect, nullniversitnull of nullielefeld, nullermannull, the
nullational Parnull Service of nullalapanullos and the nullharles nullarwin Research Station,
nullalapanullos, is conductinnull the pronullect and selected Araldite
null
nullnullnullnull to attach timenull
depthnullrecorder nullTnullRsnull to the sea lions to ensure that the recorders remained
null nulled whatever the conditions.
nulluntsman enullplains that the Araldite
null
nullnullnullnull was found to be the best
adhesive to attach recorders and studnull repeated dives of sea lions down to
nullnullnullm null nullnullnullm. The adhesive had to withstand the heavnull impact of nullnullnullnullnull sea
lions rollinnull, scratchinnull, hittinnull rocnulls, as well as the salt water of the Pacinull c
nullcean and the stronnull sun radiation.
nullana nullenulllinsnulli, from the nullalaponullus Sea nullion pronullect, saidnull nullAraldite
null
nullnullnullnull
provided reliable deplonullment and retrieval of our dive recorders. It ensured
that our recorders did not fall off, whatever the depths and conditions, until we
wanted to retrieve them which nullave us
the most wonderful data.null
Araldite
null
nullnullnullnull is part of the
Araldite
null
nullnullnullnull plus rannulle. It is
a fast cure, multinullpurpose eponullnull
adhesive that nulluntsman sanulls offers
enulltremelnull hinullh tounullhness, combined
with chemical and waternull humiditnull
resistance.
Spirol offers a nullck up solution
null mechanical back-up design using Spirol nullisc Springs has been developed for use with braking
systems for off-highway vehicles.
The manulloritnull of branullinnull snullstems are commonlnull desinullned to be
hnulldraulicallnull actuated and in most cases, branullinnull occurs when pressurised
null uid compresses stationarnull plates anullainst plates that rotate with the drive
shaft. nullowever, without an additional fail safe snullstem, this desinulln alone has
limited reliabilitnull. If a hnulldraulic seal is compromised, or the hnulldraulic cnulllinder
loses pressure for annull reason, the branulles fail.
Spirol sanulls that the desinulln of a mechanical bacnullnullup snullstem usinnull nullisc
Sprinnulls means that, under normal circumstances, the hnulldraulic snullstem holds
a constant pressure on nullisc Sprinnulls stacnulled in series. If pressure fails to be
maintained, the stacnull of nullisc Sprinnulls decompresses to actuate the branullinnull
mechanism.
nullnullisc Sprinnulls have a hinullh capacitnull to consistentlnull store releasable
mechanical enernullnull. Their conical desinulln manulles their sprinnull characteristics
and performance more predictable than traditional compression sprinnulls. nullisc
Sprinnulls are commonlnull stacnulled in multiples to achieve application specinull c
sprinnull ratesnull a stacnull in series provides less force over more travelnull a stacnull in
parallel provides more force over less travel. The precise tolerances of each
individual nullisc Sprinnull provides unparalleled performance predictabilitnull when
thenull are stacnulled nulleither in series or in parallelnull.null
Spirol also hinullhlinullhts that nullisc Sprinnulls allow fatinullue endurance to be
predicted and that stress analnullsis enables the minimum cnullle life of nullisc Sprinnulls
nullsinnullularlnull or stacnullednull to be calculated as a part of the applicationnulls desinulln.
Fastener + Fixing Magazine • Issue 61 January 2010
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