This standard specifies the test methods for the tensile, aging, tearing, hardness, brittle temperature, and adhesion between the valve and the rubber pad of various types of aircraft tire inner tubes. This standard is applicable to the physical performance test of various types of aircraft tire inner tubes. GB/T 15324-2004 Test methods for physical properties of aircraft tire inner tubes GB/T15324-2004 Standard download decompression password: www.bzxz.net

5 85. 160. 20
National Standard of the People's Republic of China
GB/115324—2004
Replaces GB/T15324—1594
Test method for the physical properties of aircraft tire inner tubes Issued on March 15, 2004
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China Standardization Administration of the People's Republic of China
Implemented on December 1, 2004
This standard replaces GB/T15524—1991 Test method for the physical properties of empty tire inner tubes. Compared with GB/T15324—1991, this standard has the following improvements: ||According to the current standard, the normative reference documents have been modified (this edition, No. 2): GB/T15324-2004
--Changed "3.1 After fluidization, the fluid must be stored in the natural environment for more than 12 hours before sampling" to "3.4 Before loading, the fluid must be stored at the actual temperature for more than 155 degrees before sampling" to "3.4 Before loading, the fluid must be stored at the actual temperature for more than 155 degrees before sampling" The sample can be taken only after more than 10 hours (3.4 of the 1994 edition; 3.4 of this edition); the result of the tensile strength test of the joint rubber should be expressed as the arithmetic mean of the number of test pieces, which should be changed to "the result of the pressure test at the extreme end of the head should be expressed as the number of test pieces" (4.3.2 of the 1994 edition and 4.1.2.2 of the wooden edition. The wooden standard was published by the China Petroleum and Chemical Industry Association. This standard is under the jurisdiction of the National Technical Committee for Tire and Vehicle Standardization This standard is interpreted by the National Aviation Tire Standardization Technical Committee. The drafting units of this standard are China National Rubber Industry Research and Design Institute, Xiyang Third Rubber School, and Yinchuan Zhongce (Great Wall) Amine Co., Ltd. The main drafters of this standard are Zhang Ge, Sheng Baoqing, Chang Hong, and Jin Hui. The release time of this standard is GB/T-5324-1D04. Test method for physical properties of aviation tire inner tube GB/T 15324—2004
This standard specifies the test methods for tensile strength, aging, tearing, hardness, brittleness, adhesion between valve and rubber of various types of aircraft tires.
This standard is suitable for physical performance tests of various types of aircraft tires. 2 Normative references
The following clauses become the clauses of this standard through reference to this standard. From the referenced documents in the period indicated, all subsequent amendments, excluding those in the period of decision or revision, shall apply to this standard: However, the parties to the agreement on this standard shall consider whether the latest versions of these documents can be used. For any referenced documents that cannot be used, the latest version shall be included in the standard. G13/T528 Determination of stress-strain properties of vulcanized rubber or thermoplastic rubber at room temperature (GB/T>28-195, 9:1SU3719943
GB/Tb29 Determination of peak strength of vulcanized or thermoplastic rubber (GA/T9-9[1:19
GB/531 Hardness test method GB/T—1999.i1S07615:1986B/11682 Determination of low-fat properties of fluidized rubber Single sample method (GB/1682S91.mVTSO312:1991) GR/2941 Rubber sample environmental conditioning test standard lubricity. According to 2 and between (GH/T2941191c9VISO171:1988
GB/T3512 Fluidized rubber or hot air aging test for hot rubber (GB/T3512-2UU1, ee1S)18.1958)
GRT 9RGS.1
Preparation of samples and types of vulcanized rubber or thermoplastics Part 1: Physical performance test (GB/TS865.-1996.idt154661-1;1993)
HGT21 Physical performance test of vulcanized liquid - General requirements 3.1 For physical performance test, the vulcanized and the back are placed in a natural environment for more than 1? before sampling. 3.2 When the thickness of the finished sample is smaller than the standard, the original thickness of the rubber layer is sampled and the test report shall be stated. 3.3 When the surface of the finished sample is uneven or the thickness is greater than the standard, the thickness specified in GB/T3865 shall be increased according to the provisions of GB/T3865. 3.4 After grinding, the sample shall be cut at the standard temperature. 1Gb or more, 3.5 Before the test, the sample shall be subjected to the treatment specified in 4K/T2941. 3.5 The preparation of the sample, the test conditions and the processing of the test data shall comply with the relevant provisions of GH/294..GB/S865.= and E1/T21%8.
4 Test items
4.1 Tensile performance test
The inner tube rubber elongation test includes the tensile strength of the inner tube rubber, the tensile strength of the inner tube rubber, the elongation at break, the tensile strength of the inner tube rubber after water-break and the tensile strength of the inner tube rubber after water-break.
4.1.1 Preparation of the sample
4.1.1.1 Take a test piece from the inner tube rubber or the inner tube of the inner tube produced by the disc method. For the inner tube produced by the disc method, take a test piece from the inner tube rubber near the joint GR/T 15324-2004
Take 5 samples
4.1.1.2 For inner tubes without tensile strength test, take 5 samples, one from the crown and the other two from each sidewall above the reinforcing section. For inner tubes produced by the disc method, take 5 samples at the crown and 4.1.1.3 The thickness after beating is (2.c0)m. 4.1.1.4 The sample is cut with a type 1 cutter according to the provisions of G/T528. 4.1.2 Test method
4.1.2.1 Test procedure shall be carried out in accordance with the provisions of B/T528: 4.1.2.2 The test result of the total strength test shall be the median value of 5 samples. The tensile strength test result of the head stock shall be expressed as the lowest value of the actual number of samples. 4.2 Aging performance test
4.2.1 Preparation of samples
5 samples shall be collected according to the sampling method of 4.1. 1. 4.2.2 Test method
4.2.2.1 Aging condition: 71x24h
4.2.2.2 Tensile test shall be carried out together with the sample before aging: 4, 2.2.3 Test procedure and test section control shall be carried out in accordance with B/T3512. The aging resistance is expressed by the rate of change of elongation before and after aging:
4.3 Strength test
4.3.1 Preparation of specimens
4.3.1.1 Take 5 specimens in the vertical direction of the front rubber extrusion: 4.3.1.2 The inner tube sampling method produced by the disc method is to prepare 5 specimens according to the detailed method of 4.1.1. 4.3.1.3 The diameter of the specimen after beating is 2,0-,2)1mm4.3.1. There is no right angle to the mouth in the cutting joint 2>, 4.3.2 Test method
The test belt, test case and test are in accordance with the provisions of GB/T52. 4.4 Hardness determination
4.4.1 Preparation of specimens
4.4.1. 1. The length of the test piece should be not less than 33mm, the width should be less than 15m, and the thickness should be not less than 6m. 4.4.1.2 This requirement should be used for the test piece with a length of (2.010.3)mm. However, the total length should be less than 6m. The test piece should be tested with a length of (2.010.3)mm. 2.4.2 Test method Test position, test steps and test results should be tested with a length of (131). 4.5 Temperature test 4.6.1 Preparation of test piece 4.5.1.1 Take the sample according to the method of taking the sample in 4.1. 4.5.1.2 Grind the sample to a thickness of (2.±.8)mm. Cut into pieces with a length of (e,0=2.)mm and a length of (25.0+0.5)mm.
4.5.2 Test method
The test apparatus, test pressure and handling of the test group shall be carried out according to the provisions of 12. 4.6 Adhesion elasticity test between valve teeth and rubber pads 4.6.1 Preparation of the test specimen
GR/T 15324—2004
Cut the inner tube and the seat of the seat: Cut the rubber seat in any direction (cut off the mouth cavity), draw two parallel lines at an angle to the bottom line, as shown in Figure 1, and connect them!
Later valve confirmation
The following table holds the sealing line
The valve mouth is slightly cut in the direction of the test,
4.6.2 Test steps
Push the test piece along the test line. Clamp the test piece on the tensile test machine, as shown in Figure 1. Continue to control the test bar with a descending speed of (1mlu)m/min until the rubber is lifted off the seat of the valve. 4.6.3 Test results 4.6.3.1 The distance between the valve and the seat is the same as the distance between the valve and the seat. 4.6.3.2 If the upper layer is torn off, the test result must be recorded in the test report. The negative value when the seat is torn off is 5. Test results The test report should include the following content: Manufacturer, product specifications, manufacturing date, test date: Test conditions: Test humidity, relative humidity, test items: After the test, the maximum and minimum performance, minimum, minimum ||Tensile strength, MP:bzxz.net
5 fixed elongation:
Tear-off elongation.%
Tear-off permanent change, ;
Tensile strength of joint cavity: MPa; average value CB/T15324—2004
Note aging grease
Tear-off elongation change, %,
Tear strength, kN/m;
Erosion spot (Part A), degrees
Record temporary temperature, ;
Adhesion strength change between valve and bite kN
Tester!
Others.
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