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Information about tests

Sealing properties, verification and comparison by laboratory sealing press

Preparing of sealings on our laboratory sealing press (Kopp) and measuring the sealing strength with a Zwick tensile tester. The sealings are prepared by ​​using pre-agreed parameters. To create sealing curves individual parameters are varied, e.g. for determining the dependence of the sealing properties on the sealing temperature Ts [° C]. Of course, sealing curves can also determined as a function of sealing pressure ps [N / cm] or sealing time ts [s]. Typically, one parameter is varied over 5 equal steps and the results are plotted graphically as a function of the variable. (accredit testing)

test method:Mechanical/ technological properties
Norms:DIN EN ISO 527-3 / DIN 55409-2 / DIN 55529 / DIN EN 868-5- D / ASTM F 88/ F 88M / GKV Blatt III, Pkt 3 / DIN 55409-1
Needed sample size:sample over total width of material, min length: 3 m

Standardprüfungen

sealing curve, variation of sealing pressure
Preparing of laboratory sealings by variation of the sealing pressure, sealing temperature and sealing time are held constantly. The seal strength is plotted as a function of the chosen parameter.


sealing graph (as a function of sealing time)
Preparing of laboratory sealings by variation of the sealing time, sealing pressure and sealing temperature are held constantly. The seal strength is plotted as a function of the chosen parameter.


sealing graph (as a function of temperature)
Preparing of laboratory sealing by variation of the sealing temperature, sealing pressure and sealing time are held constantly. The seal strength is plotted as a function of the chosen parameter.


sealing test with fixed parameter setting
One seal sample with fixed parameter setting for sealing pressure, temperature and sealing time is prapared. The seal strength of the sample is determined. This test is useable for for checking fixed specification requirements.




back to overview Mechanical/ technological properties

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Your contact person

Matthias Böhne +49 441 94986-11
matthias.boehne@innoform.de

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