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GB/T 30311-2013: Test method for tensile properties of dipped aramid yarns and cords
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 30311-2013 | English | 189 |
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Test method for tensile properties of dipped aramid yarns and cords
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GB/T 30311-2013
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Basic data | Standard ID | GB/T 30311-2013 (GB/T30311-2013) | | Description (Translated English) | Test method for tensile properties of dipped aramid yarns and cords | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G47 | | Classification of International Standard | 83.140.99 | | Word Count Estimation | 8,872 | | Quoted Standard | GB/T 6529; GB/T 8170 | | Regulation (derived from) | National Standards Bulletin 2013 No. 27 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard specifies the use of rubber products dipped aramid yarn, cord and cord breaking strength, breaking elongation, elongation load, constant load elongation, breaking strength coefficient of variation, elongation coefficient of variation, test m | GB/T 30311-2013: Test method for tensile properties of dipped aramid yarns and cords---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Test method for tensile properties of dipped aramid yarns and cords
ICS 83.140.99
G47
National Standards of People's Republic of China
Dipped aramid yarns, cords and cords of tensile properties
experiment method
Issued on. 2013-12-31
2014-09-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This standard was drafted in accordance with GB/T 1.1-2009 given rules.
The standard proposed by China Petroleum and Chemical Industry Association.
This standard by the National Standardization Technical Committee dipped rubber reinforcing materials and rubber Technical Committee (SAC/TC35 /
SC13) centralized.
This standard is mainly drafted by. Yantai Taihe new material Co., Ltd., Dah Sing Qingdao Branch Rubber Technology Service Co., Ltd. Qingdao Branch
University of Technology, Co., Ltd. Qingdao day state line.
The main drafters of this standard. Ma Qianli, Bing Xin, Liu Li, Jiang Hua, Shao Zhengli.
Dipped aramid yarns, cords and cords of tensile properties
experiment method
1 Scope
This standard specifies the use of rubber products dipped aramid yarn, rope and cord breaking strength, breaking elongation, constant elongation load, constant load
Standard Test Method for Performance of elongation, breaking strength coefficient of variation coefficient of variation of elongation at break, tensile modulus of elasticity.
This standard applies to dipped aramid yarn, cord and the cord stretched detection performance.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
GB/T 6529 Textiles Standard conditioning and testing atmosphere
GB/T 8170 repair value expressed about the rules and limit values \u200b\u200band judgment
3 Test principle
Under specified test conditions, the balance after dipping aramid yarn, rope and cord samples, held in a fixed constant elongation (CRE)
The type tensile testing machine at a constant rate tensile force pulling the sample until the sample breaks. Read directly from the tensile testing machine or calculated
Obtain samples for tensile strength, elongation at a given load, constant load elongation, elongation, breaking strength coefficient of variation, variation in elongation at break
Coefficient, elastic modulus tensile properties data.
4 equipment and instruments
4.1 tensile testing machine
Use constant elongation (CRE) type tensile testing machine, the test machine should be configured with a self-recording logger or can automatically calculate and display the Badge
Quasi-data needed, and should meet the following requirements.
a) to record breaking strength and elongation values \u200b\u200band draw strength - elongation curve;
Test error b) strength values \u200b\u200b≤1%;
c) test error elongation value ≤0.1mm;
d) error holding gauge length value ≤1mm;
e) holding the specimen holder should be stable, and to ensure that during the test, the sample lower clamp clip inside slip does not occur, and the clip
Holding force will not produce damage to the specimen;
f) tensile testing machine should be equipped with extensometer.
4.2 tensile testing machine fixture
4.2.1 This standard specifies test should be used in arc jig, the sample was wound between the clip plane, then to partially (corners) around
Wire wrapped around the clip groove on the other end of the sample in the same manner on the other winding fixture; jig clamped sample should not slip or the sample
Fracture damage.
4.2.2 holder holding mode using pneumatic or hydraulic way.
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