Standard Test Method for Adhesion Between Steel Tire Cords and Rubber

SCOPE
1.1 This test method covers the determination of the force required to pull a steel cord from a block of vulcanized rubber.
1.2 Although designed primarily for steel cord, this test method may be applied with modifications to wire used in rubber products.
1.3 This test method can also be used for evaluating rubber compound performance with respect to adhesion to steel cord.
1.4 The values stated in SI units are to be regarded as the standard. No other units of measurement are included in this standard.
This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

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Publication Date
30-Sep-2004
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ASTM D2229-04e1 - Standard Test Method for Adhesion Between Steel Tire Cords and Rubber
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information.
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Designation: D2229 – 04
Standard Test Method for
1
Adhesion Between Steel Tire Cords and Rubber
This standard is issued under the fixed designation D2229; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1
´ NOTE—The reference to Table 2 was changed to Table 1 in Section 13.3 in March 2007.
TABLE 1 Critical Differences for Conditions Noted, 95 %
2. Referenced Documents
Probability Level
2
2.1 ASTM Standards:
Single Within- Between-
Number of
D76 Specification forTensileTesting Machines forTextiles
Name of Property Operator Laboratory Laboratory
Observations
D123 Terminology Relating to Textiles
Precision Precision Precision
D1566 Terminology Relating to Rubber
Pull-out force, N (Single-Material Comparisons)
449 52 85 D2904 Practice for Interlaboratory Testing of a Textile Test
834 39 77
Method that Produces Normally Distributed Data
16 24 31 74
D6477 Terminology Relating to Tire Cord, Bead Wire,
(Multi-Material Comparisons)
4 49 52 120
Hose Reinforcing Wire, and Fabrics
834 39 115
E105 Practice for Probability Sampling Of Materials
16 24 31 112
E122 Practice for Calculating Sample Size to Estimate,
Rubber coverage, % (Single-Material Comparisons)
47 7 19
With Specified Precision, the Average for a Characteristic
85 5 18
of a Lot or Process
16 4 4 18
(Multi-Material Comparisons)
3. Terminology
411 11 28
810 10 28
3.1 Definitions
16 9 9 28
3.1.1 Fordefinitionsoftermsrelatingtotirecord,beadwire,
hose wire, and tire cord fabrics, refer to Terminology D6477.
3.1.1.1 The following terms are relevant to this standard:
1. Scope
adhesion, rubber compound, and steel cord.
1.1 This test method covers the determination of the force
3.1.2 For definitions of terms relating to rubber, refer to
required to pull a steel cord from a block of vulcanized rubber.
Terminology D1566.
1.2 Although designed primarily for steel cord, this test
3.1.3 For definitions of other terms related to textiles, refer
method may be applied with modifications to wire used in
to Terminology D123.
rubber products.
1.3 This test method can also be used for evaluating rubber 4. Summary of Test Method
compound performance with respect to adhesion to steel cord.
4.1 Thesteelcordsarevulcanizedintoablockofrubberand
1.4 The values stated in SI units are to be regarded as the
the force necessary to pull the cords linearly out of the rubber
standard. No other units of measurement are included in this
is measured.
standard.
5. Significance and Use
1.5 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
5.1 This test method is considered satisfactory for the
responsibility of the user of this standard to establish appro-
acceptance testing of commercial shipments of steel tire cord
priate safety and health practices and determine the applica-
because current estimates of between-laboratory precision for
bility of regulatory limitations prior to use.
single materials are considered acceptable and the method has
been used extensively in the trade for acceptance testing.
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ThistestmethodisunderthejurisdictionofASTMCommitteeD13onTextiles
2
and is the direct responsibility of Subcommittee D13.19 on Tire Cord and Fabrics. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Oct. 1, 2004. Published October 2004. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
publishedasD2229–63T.LastpreviouseditionD2229–02.DOI:10.1520/D2229- Standards volume information, refer to the standard’s Document Summary page on
04E01. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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D2229 – 04
5.1.1 If there are differences or practical significances be- usedtoproduceblocks,andwhentestingcordswithadiameter
tween reported test results for two laboratories (or more), greater than 1.7 mm, the mold should be suitably modified.
comparative tests should be performed to determine if there is Molds designed to produce any other number of test blocks of
a statistical bias between them, using competent statistical the required dimensions are acceptable, and molds designed to
assistance.Asaminimum,thetestsamplesshouldbeusedthat produce blocks with different embedded cord length are
are as homogenous as possible, that are drawn from the permitted.
material from which the disparate test results were obtained,
6.2 Ifmorethanonethirdofthecordsbreakatthe12.5-mm
and that are randomly assigned in equal numbers to each
emb
...

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