dimensiuni epruvete
-
Upload
dorindorin2 -
Category
Documents
-
view
220 -
download
0
Transcript of dimensiuni epruvete
-
8/12/2019 dimensiuni epruvete
1/3
REZISTENA LA TRACIUNE I ALUNGIREA LA RUPERE maina de ncercat la
traciune TITAN
Tensile Properties of Fabrics - Part 2: Maximum Force Using the Grab Test Method(I!"#$#%-2:"$$$&
!e"criere "tandard#
ISO 13934-2:2014 specifies a procedure for the determination of the maximum force of textile
fabrics knon as the !rab test" #he method is mainl$ applicable to o%en textile fabrics
includin! fabrics hich exhibit stretch characteristics imparted b$ the presence of an
elastomeric fibre and mechanical or chemical treatment" It can be applicable to fabrics produced
b$ other techni&ues" It is not normall$ applicable to !eotextiles' nono%ens' coated fabrics'
textile-!lass o%en fabrics' and fabrics made from carbon fibres or pol$olefin tape $arns" #he
method specifies the determination of the maximum force of test specimens in e&uilibrium ith
the standard atmosphere for testin! and of test specimens in the et state" #he method is
restricted to the use of constant-rate-of-extension ()*+, testin! machines"
$%rma e&ru'etei#dreptun!hiular
!imen"iuni#. / 11'cm' l / 4 cm
Nr( de "&ecimene:
!i"tana dintre cleme: mm
-------------------------------------------------------------------------------------------------------------------------------
--------
http:"instron"usasolutionsISO-13934-2-#ensile-roperties-abrics-art-2"aspx5
ref/https:"!oo!le"ro
#his method is mainl$ applicable to o%en textile fabrics" It ma$ be applicable to fabrics
produced b$ other techni&ues" It is not normall$ applicable to o%en elastic fabrics' !eotextiles'
nono%ens' coated fabrics' textile-!lass o%en fabrics and fabrics made from carbon fibres or
pol$olefin tape $arns" #his method specifies a procedure to determine the maximum force of
textile fabrics b$ a !rab test method in standard atmosphere andor in the et state"
6rab test specimen preparation one set in the lon!itudinal direction and the other in the
trans%erse direction" In principle a fabric test specimen is !ripped in its centre part b$ 7as of
specified dimensions is extended at constant rate of displacement until it ruptures" #he
maximum tensile stren!th onl$' of force and extension characteristics of the product is recorded"#o record the test it is important to ha%e a hi!h speed intelli!ent test data lo!!in! rate" #his is
the transfer rate to the ) of 1008 or more to capture and record all the data"
e use pneumatic action !rips ith rubber coated 7a faces for clampin! of the material fitted to
a tensile testin! machine" hile manual action !rips ill ork' man$ of our users prefer the
pneumatic action !rips for ease of use' producti%it$' and better repeatabilit$" neumatic action
http://www.instron.us/wa/solutions/ISO-13934-2-Tensile-Properties-Fabrics-Part-2.aspx?ref=https://www.google.ro/http://www.instron.us/wa/solutions/ISO-13934-2-Tensile-Properties-Fabrics-Part-2.aspx?ref=https://www.google.ro/http://www.instron.us/wa/solutions/ISO-13934-2-Tensile-Properties-Fabrics-Part-2.aspx?ref=https://www.google.ro/http://www.instron.us/wa/solutions/ISO-13934-2-Tensile-Properties-Fabrics-Part-2.aspx?ref=https://www.google.ro/ -
8/12/2019 dimensiuni epruvete
2/3
!rips allo $ou to set a clampin! pressure' hile the manuall$ operated !rips depend on the
operator;s stren!th (hich ma$ not be so repeatable," e find that !rippin! pressure and
specimen ali!nment are %er$ important in these tests" #oo much !rippin! pressure can produce
premature breaks' hile not enou!h !rippin! pressure can lead to specimen slippa!e or breaks
at or near the 7as" #hese !rips are usuall$ fitted to sin!le-column or dual-column table-top
desi!n"
-
8/12/2019 dimensiuni epruvete
3/3
Ta)el * Caracteri"tici te+nice ale a&aratului
,NU-.ARTIN!ALE A)ra"i%n and Pillin/ Te"ter .%del 0123
Te"te
Caracteri"ticiA4RAZIUNE PILLING
A4RAZIUNE
CI5RAPI
Ti&ul materialului
te"tat
#extile plane' tricoturi'
anumite materiale
ne=esute
>esturi ?i tricoturi
(fire din fibre scurte,
#oate compo9i=iile
fibroase
Num6r de
e&ru'ete te"tate@ @ @
$%rma
e&ru'eteicircular circular circular
!iametrul
e&ru'etei3'@ cm 11 cm 3'@ cm
!iametrul
de te"tare 3 cm 9 cm 1' cm sau 2 cmSu&ra7aa de cm2 A4cm2 1'Acm2 sau
Pre"iunea de
te"tare
9 ka (=esturi u?oare, 2" cBcm2 (tricoturi, 12 ka
12 ka (tapi=erie, A" cBcm2 (=esturi,
8ite9a de
lucru4" C- 2"rpm 4" C- 2"rpm
4" C- 2"rpm
1'2 rpmDalori intermediare ale %ite9ei: x 0" and x 1" standard speed
Cur"a t%tal6 A0" C- 0"mm 24"0 C- 0"mm A0" C- 0"mm