Conveyor belts — Adhesion between constitutive elements — Test methods (ISO/FDIS 252:2022)

ISO 252:2007 specifies two test methods, A and B, for determining the adhesion strength between constitutive elements of a conveyor belt, i.e. between plies and between covers and carcass. Basic test conditions are in conformity with ISO 36.
It is applicable to all types of construction of conveyor belting with the exception of belts containing steel cord reinforcement, and textile-reinforced belts with a full-thickness tensile strength of less than 160 N/mm. It is not suitable or valid for light conveyor belts as described in ISO 21183-1.

Fördergurte – Lagenhaftung zwischen den Bestandteilen – Prüfverfahren (ISO/FDIS 252:2022)

Dieses Dokument legt zwei Prüfverfahren, A und B, zur Bestimmung des Trennwiderstands zwischen den Lagen sowie zwischen den Deckplatten und der Karkasse von Fördergurten fest. Die wesentlichen Bedingungen der Prüfung entsprechen ISO 36.
Es ist auf alle Arten von Fördergurten anwendbar, mit Ausnahme von Gurten mit Stahlseileinlagen und von Gurten mit Textileinlage, deren Nennbruchkraft weniger als 160 N/mm beträgt. Es ist nicht anwendbar oder gültig für leichte Fördergurte nach ISO 21183 1 [1].
ANMERKUNG   Verfahren A oder Verfahren B können alternativ angewendet werden, aber die berechneten Mittelwerte für die Haftfestigkeit können für Verfahren A und Verfahren B unterschiedlich sein. Da auch beide Verfahren möglicherweise nicht gleichwertig anwendbar sind für alle Gurtkonstruktionen, sollte der Rat des Gurtherstellers eingeholt werden.

Courroies transporteuses — Adhérence entre éléments constitutifs -— Méthodes d'essai (ISO/FDIS 252:2022)

L'ISO 252:2007 spécifie deux méthodes d'essai, A et B, permettant de déterminer l'adhérence entre éléments constitutifs d'une courroie transporteuse, c'est-à-dire entre plis et entre revêtements et carcasse. Les conditions générales d'essai sont conformes à l'ISO 36.
Elle s'applique à tous types de construction de courroie transporteuse à l'exception des courroies à armature en câble d'acier, et des courroies à armature textile présentant une résistance à la rupture inférieure à 160 N/mm. Elle n'est pas applicable ou valable pour les courroies transporteuses légères décrites dans l'ISO 21183-1.

Naprave za kontinuirni transport - Trakovi tračnih transporterjev - Sprijetost osnovnih sestavnih elementov - Preskusne metode (ISO/FDIS 252:2022)

General Information

Status
Not Published
Public Enquiry End Date
30-Jul-2022
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
30-Mar-2023
Due Date
04-Jun-2023

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SLOVENSKI STANDARD
oSIST prEN ISO 252:2022
01-julij-2022
Naprave za kontinuirni transport - Trakovi tračnih transporterjev - Sprijetost
osnovnih sestavnih elementov - Preskusne metode (ISO/DIS 252:2022)
Conveyor belts — Adhesion between constitutive elements — Test methods (ISO/DIS
252:2022)
Fördergurte – Lagenhaftung zwischen den Bestandteilen – Prüfverfahren (ISO/DIS
252:2022)

Courroies transporteuses Adhérence entre éléments constitutifs - Méthodes d'essai

(ISO/DIS 252:2022)
Ta slovenski standard je istoveten z: prEN ISO 252
ICS:
53.040.20 Deli za transporterje Components for conveyors
oSIST prEN ISO 252:2022 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN ISO 252:2022
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oSIST prEN ISO 252:2022
DRAFT INTERNATIONAL STANDARD
ISO/DIS 252
ISO/TC 41/SC 3 Secretariat: SAC
Voting begins on: Voting terminates on:
2022-05-11 2022-08-03
Conveyor belts — Adhesion between constitutive elements
— Test methods

Courroies transporteuses — Adhérence entre éléments constitutifs — Méthodes d'essai

ICS: 53.040.20
This document is circulated as received from the committee secretariat.
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oSIST prEN ISO 252:2022
ISO/DIS 252:2022(E)
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© ISO 2022 – All rights reserved
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oSIST prEN ISO 252:2022
ISO/DIS 252:2022(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ..................................................................................................................................................................................... 1

3 Terms and definitions .................................................................................................................................................................................... 1

4 Principle ........................................................................................................................................................................................................................ 1

5 Apparatus .................................................................................................................................................................................................................... 1

6 Test pieces ...................................................................................................................................................................................................................2

6.1 Time between manufacture and test ................................................................................................................................. 2

6.2 Shape and dimensions ..................................................................................................................................................................... 2

6.3 Number .......................................................................................................................................................................................................... 2

6.4 Selection of test pieces from sample ................................................................................................................................... 2

6.5 Conditioning.............................................................................................................................................................................................. 2

7 Procedure ....................................................................................................................................................................................................................2

7.1 Method A (see Figure 1).................................................................................................................................................................. 2

7.2 Method B (see Figure 2) ................................................................................................................................................................. 3

8 Expression of results ....................................................................................................................................................................................... 5

8.1 Examination of traces for longitudinal test pieces ......... ........................................................................................ 5

8.2 Examination of traces for transverse test pieces .................................................................................................... 5

9 Test report .................................................................................................................................................................................................................. 5

Bibliography ................................................................................................................................................................................................................................ 6

iii
© ISO 2022 – All rights reserved
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oSIST prEN ISO 252:2022
ISO/DIS 252:2022(E)
Foreword

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ISO 252 was prepared by Technical Committee ISO/TC 41, Pulleys and bel
...

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