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GB 15323-2009Inner tubes for aircraft tyres (English PDF)

航空轮胎内胎

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Issued by

AQSIQ; SAC

Level / Type

National · Mandatory

Issue date

December 15, 2009

Implementation date

October 1, 2010

Scope

GB 15323-2009 is the English-translated version of 航空轮胎内胎.

GB 15323 is the product standard for the inner tubes used in civil aircraft tyres, a component that has to hold pressure through the temperature swing between a cold cruise and a hot landing, and through the deflection of a tyre carrying an aircraft at touchdown speed. It sets the requirements, the test methods, the inspection rules and the marking, storage and use provisions, and it applies to inner tubes for all types of civil aviation tyre. It is mandatory. Issued on 15 December 2009, in force since 1 October 2010, replacing GB 15323-1994. This page is published from the official record of the standard held by the Chinese standards administration: the identification, the dates, the classification and the edition it replaces are taken from there. The clause text, the tables and the numeric limits are not reproduced on this page - they are in the document itself, which is delivered in full in English translation.

Document preview — GB 15323-2009

National Standard of the People's Republic of China

ICS: 83.160.20
Classification: G 41
Replacing: GB 15323-1994

Issued by: General Administration of Quality Supervision, Inspection and Quarantine; Standardization Administration of the PRC

1 Scope
1.09 HZD-46 8.50-10 - - 1.8 2.6
1.25 HZD-45 7.00-8 - - 1.8 2.6 1.47 - 7.50-10 - - 1.8 2.6 1.18 - 7.50-14 - - 1.8 2.6
1.27 HZH-55 17.00-16 - - 2.5 3.6
1.36 HZD-45 6.50-10 - - 1.6 2.5
1.47 HZH-70 18 × 5.5 - 41 2.5 3.8 1.59 - 19.00-23 - 197 3.0 3.8
1.70 HZH-97 26 × 6.6 - 51 2.5 3.8
1.80 HZA-65 (112 °) 600 × 155 - - 2.0 2.2
1.81 HZE-61 11.00-12 - - 2.3 2.8
1.90 HZA-65 500 × 180 1 - 2.5 3.5
1.92 HZD-50 7.00-6/8.00-6 - - 1.6 1.6
2 Normative references
2.27 HZE-88 8.00-4 - - 1.6 1.6
2.31 HZD-50 9.00-6 - - 1.6 1.8
2.50 HZA-118 700 × 250 - - 2.0 2.5
2.74 HZE-87 29 × 7.7 - 51 2.5 3.8
3 Terms and Definitions
3.29 HZE-117 30 × 7.7 - 67 2.3 3.8
3.40 HZE-86 32 × 8.8 - 80 3.0 3.8
3.50 HZA-98 770 × 330 - - 2.5 2.5
3.63 HZD-32b 12.5 × 4.5 - - 2.0 2.5
3.65 HZD-35a 11.00-12 - - 2.3 2.3
3.86 HZE-86 34 × 9.9 - 90 3.0 4.1
4 Requirements
4.1 Tube size designation
4.1.1 British flag representation example. 5.00 --4 15 × 6.0 -
4.1.2 Metric logo representation example. 660 × 200 330 × 130 -
4.50 HZA-80 850 × 200 1 - 2.2 2.5
5 Test methods
5.00 HZA-90 865 × 280 1 - 2.2 2.5
5.1 Airtight performance test
5.1.2 Test sink
5.50 HZA-98 930 × 305 2 - 2.5 3.0
6 Nominal outside diameter of the nominal section width nominal rim diameter
6.00 HZA-118 930 × 305 1 - 2.2 2.5
7 Marking, storage and use
7.00 HZA-65 1050 × 300 1 - 2.5 3.5
7.2 Storage and Use
7.2.1 Storage conditions
8.00 HZA-110 1050 × 400 - - 3.0 3.0
8.50 HZA-118 1100 × 395 - - 3.0 3.5
9.00 HZA-105 1140 × 350 1 - 3.0 3.5
9.62 HZE-104 18 × 4.4 - 34 2.5 3.8
9.63 HZE-137 15 × 6.0-6 - - 1.7 2.0
10.50 HZA-164 1200 × 450 - - 3.0 3.2
12.00 HZA-113 1260 × 390 1 - 2.7 3.0
13.00 HZA-98 1400 × 485 1 - 5.5 5.5
14.00 HZA-164 1300 × 480 1 - 2.5 3.5
16.00 HZA-142 1400 × 520 1 - 5.5 5.5
20.50 HZA-118 Valve on the tube size
Appendix A

Foreword

The standard Chapter 4, Chapter 7 are mandatory, the rest are recommended. This standard replaces GB 15323-1994 "aviation tire tube." The main differences between this standard and GB 15323-1994 are.

--- Adds new aviation tube specifications (Excerpts of Table 1, Table 2);

--- Increased aviation tube supporting the valve model (Excerpts of Table 1, Table 2);

--- Increased physical performance tube (edition 4.4);

--- Increased sampling and testing content measuring tube thickness (edition 5.2);

--- Increasing the representation of the contents of the tube size marks (edition 4.1);

--- Added Appendix A;

--- Remove the packaging content (1994 edition 6.2). Appendix A of this standard is an informative annex. The standard proposed by China Petroleum and Chemical Industry Association. The standard tire rim by the National Technical Committee of Standardization Technical Committee centralized aircraft tires. This standard was drafted. Rubber Group Shuguang Rubber Industry Research and Design Institute, Shenyang third rubber plant, Yinchuan Rubber Factory. The main drafters of this standard. Wang Shunyi, Song Yuliang, Qi Liping. This standard replaces the standard for the previous editions.

--- GB 15323-1994. Aviation tire tube

1 Scope

This standard specifies the requirements of civil aviation tire tube, test methods, inspection rules, marking, storage and use. This standard applies to all types of civil aviation tires.

1.47 HZH-70 18 × 5.5 - 41 2.5 3.8 1.59 - 19.00-23 - 197 3.0 3.8

16.30 HZE-131 20.00-20 1-- 3.6 4.6 15.42 - 22 × 7.25-11.5 - - 2.5 3.8 1.67 - 24 × 7.7 - 64 2.5 3.8 2.73 - 25 × 6.0 - - 2.3 3.5

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.

GB/T 532 vulcanized rubber or thermoplastic rubber and fabric adhesive strength was measured ( GB/T 532-2008, ISO 36.2005, IDT)

GB/T 6326 tires terms and definitions ( GB/T 6326-2005, ISO 4223-1.2002, NEQ)

GB/T 15324 aviation tire tube physical performance test method HG2195 aviation and maintenance of tires HG2484 aviation tube valve HG2485 aviation tube valve core

3 Terms and Definitions

Terms and definitions GB/T 6326 established apply to this standard.

3.63 HZD-32b 12.5 × 4.5 - - 2.0 2.5

0.81 HZC-64 12.50-16 - - 2.6 3.3 3.85 - 15.50-20 - - 2.6 3.6

3.86 HZE-86 34 × 9.9 - 90 3.0 4.1

4.54 HZE-86 a formula suitable for flat rim; b For-deep rim. Table 2 of the tube size, thickness, quality, and valve type (Metric) Tube specifications Within weeks curtain Cloth layers The inner circumferential ply Width/mm Thickness/mm (not less than) Crown base Quality/kg (no greater than) Valve model 330 × 130 - - 2.0 2.5

0.55 HZH-72 330 × 130 - - 2.0 2.5

0.65 Z9-65 special 380 × 150-5 - - 1.6 1.8 0.64 - 400 × 150 - - 2.0 2.5

0.95 HZA-90 480 × 200 - - 2.0 2.3

4.1.2 Metric logo representation example. 660 × 200 330 × 130 -

5 Nominal outside diameter of the nominal section width nominal rim diameter (inches)

4.2 specification, thickness, quality and type valve

4.2.1 Inch specifications mark the tube size, thickness, and quality of valve type should be consistent with Table 1. Metric tube size designation Regulation Georgia, thickness, and quality of valve type should comply with the provisions of Table 2. Table 1 of the tube size, thickness, quality, and valve type (inch) Tube specifications Within weeks curtain Cloth layers The inner circumferential ply Width/mm Thickness/mm (not less than) Crown base Quality/kg (no greater than) Valve model 5.00-5 - - 1.6 1.6 0.64 - 6.00-6 - - 1.6 1.6

0.96 HZD-45 6.50-8 - - 1.6 1.6

5.1 Airtight performance test

5.1.1 Test inflatable park At room temperature, the tube is inflated to increase the cross-sectional circumference of about 10%, tighten the valve core, at least park 24h, measuring section perimeter; if broken Reduce surface perimeter less than 1%, that is, airtight performance qualified.

5.1.2 Test sink

5.1.2.1 The inner tube is inflated to increase the cross-sectional circumference of about 10%, tighten the valve core, so that the entire tube is immersed in a water bath until the water calm after such If within 1min no bubbles escape, is airtight performance qualified.

5.1.2.2 If there are air bubbles escape, the replacement valve core valve core of the re-test, if no bubbles escape, was in 2min tightness qualified.

5.1.2.3 If there are other parts of the tube bubbles escape, you can remove the inner tube to be checked, allowing repeat the test. If within 1min airless Bubble escape, airtight performance is qualified.

5.1.2.4 allow large-sized tube segments immersed in water for testing.

5.2 Thickness measurement tube When measuring the thickness of the tube, the tube should avoid joint and valve parts. In the inner circle as the base tube 90 ° turn away from the interception of a width of about 4 25mm long tire tube samples were measured in the center of the crown, the thickness of the base center. Take the average of 8.00. Weighing

5.3 tube Depending on the specifications and quality requirements of the tube, said tube options to meet the quality requirements of the scales, precision scales should be at least ± 5g.

5.4 Physical properties Where a physical performance test finished, vulcanized sampling should be parked more than 12h at room temperature. Physical performance test tube of glue should meet Co GB/T 15324 regulations; wherein the reinforcing cord and measured fetal body adhesive bond strength should be consistent with the provisions of GB/T 532's.

5.5 Appearance Inspection Inner tube surface quality through the use of means of visual and steel ruler, gold tape (without curvature, precision ± 1.0mm) and caliper (accuracy Is ± 0.02mm) the same amount of apparatus for testing.

7 Marking, storage and use

7.1 marks Tubeless tire side portion should have the following obvious signs, and can be clearly identified during the whole period.

a) specification;

b) the trademark;

c) Manufacturing serial number;

7.2.1 Storage conditions

7.2.1.1 not allow the tube evacuated or folded storage and stacking.

7.2.1.2 will meet the requirements of a small tube filled with air or nitrogen, flat or hung on a semicircular bay, two months at least once rotated Fulcrum to prevent local deformation of the tube; and to be sprinkled on the surface of the outer and inner tube after a small amount of the release agent charged with the specifications of the tire, and filled with the appropriate amount of Air or nitrogen.

7.2.1.3 tube should not, flammable materials and other items easy to make contact with the rubber deterioration of oil, acid, alkali and other corrosive chemicals.

7.2.1.4 tube should be placed in a well ventilated warehouse, avoid direct sunlight, away from heat sources and other equipment to produce ozone At least 2m above.

7.2.2 Storage and Use Tire regulations should HG2195 storage and use; from the date of manufacture, storage, and usage time of the tire should not exceed 5 years.

9.63 HZE-137 15 × 6.0-6 - - 1.7 2.0

0.96 HZD-45 15 × 6.0-5 - - 1.7 2.0 0.62 - 16 × 4.4 - 34 2.4 3.8

20.50 HZA-118 Valve on the tube size

4.2.2 shall comply with the provisions of HG2484; valve core dimensions shall comply with the provisions of the HG2485.

4.3 airtight performance A test method should be

5.1 to any tightness of the tube inspection.

4.4 Physical properties The physical properties of the tube should be shown in Table 3. Table 3. Physical properties and targets Test Item Index Tensile strength >=17.0MPa Elongation at break >=550% Tearing permanent deformation <=30% Elongation at break after aging (71 °C ± 1 °C, 24h) >=510% Tear strength (right angle) >=37.0kN/m Brittle temperature <=-50 °C Joint tensile strength >=12.5MPa Valve base and pad adhesion >=343N No base between valve rod and sleeve adhesion strength >=3.9kN/m Reinforced carcass ply and adhesive bond strength >=5.0kN/m

Note. The table data is all natural rubber inner tube physical performance.

4.5 appearance quality Tube appearance quality requirements shall conform to Table 4. Table

4 Air quality tire tube appearance Requirements and processing method serial defect

1 pleated not allowed

2 surface of the sponge does not allow

3 joints bubbles, cracks or thin joints are not allowed 4 surface-stick oil or other harmful substances are not allowed Valve between the pad and the carcass bubbles, points From crack Not allowed 6 partial crown thin, lack of glue spots The total area of bare tube surface area of not more than 0.5%; spots on the tube surface should be flat grinding whole. Local thinnest thickness of not less than 90% of the thickness of the crown 7 plastic surface impurities, contaminants should be removed from the bubble surface, bubbles should be punctured and smooth surface polishing, each tube more than three 8 out of plastic crown rim, the plastic mold seam at the edge dislocation carcass thickness of not less than specified in Table 1, mold seam displacement of not more than 0.5mm Talc surface traces of the joints 9 joint surface does not allow heavy leather 10 ply a scar scar parts of the total area of not more than 1% of the surface area of the tube Between 11 and carcass ply bubble bubble diameter not greater than 5mm; bubbles should be pierced and ground smooth, and not more than 3 12 ply surface impurities and bubbles impurities should be removed, the cord should not be damaged, exposed wire should not exceed an area of 50mm2, no more than three 13 cords allow bending 14 cord jumper, jumper cords from the bit, bit off more than three 15 ply edge-glued edges need grinding gap at the split, each tire is not more than three, the cumulative gap length of not more than 20% of the perimeter 16 injury should not affect the valve tightness 17 producing a continuous number is unclear or omissions made up continuous production numbers, and in the preservation and use can permanently identify clearly NOTE. If you have other tube defects, according to the internal table similar defect determination, the defect should not allow more than two; the thickness of the tube surface defects by grinding smooth after not less Table 1 specifies the corresponding 90% of the thickness.

Appendix A

(Informative) Inspection rules A. Batch

1 Product Tube according to specifications, model group batches. In a continuous production cycle products to 500 batch. When an interrupt production date two months Or more, should be the new production processes Batch separately, before the production of the product less than 500, should be composed of a number. A. 2 factory inspection A.

2.1 full inspection Where the factory each tube should be carried out following full inspection items.

a) the quality of the finished appearance;

b) finished airtight performance. A.

2.2 Sampling Inspection A.

2.2.1 Sampling Method The sample must be drawn at random from the batch extraction, there are cosmetic defects but does not affect the test results of products allowed to participate in the sample, but should refer to As a sample. A.

2.2.2 sampling project and the number of samples Each batch of products should be drawn in a tube as a sample to test the following items.

c) physical properties. A.

2.3 determine the rules A.

2.3.1 the quality of the finished appearance or airtight performance does not meet the provisions of this standard, is substandard goods, should be removed. A.

2.3.2 Quality finished sample exceeds a predetermined who is substandard and should be removed. At the same time, the product should be weighed one by one, all Overweight should also be excluded. A.

2.3.3 If the finished thickness of the specimen does not meet the standards, should be drawn from the batch of products in the two tubes were then the thickness test, When the two are qualified, the batch is deemed qualified, otherwise unqualified. A. The physical properties of the finished product

2.3.4 Sample test results, while if the project failed, two samples should be taken to check the project, the whole When the Ministry of qualified, then depending on the batch of products is still qualified. If the tensile strength, elongation at break and ultimate test in three permanent deformation, if any one Entry failed, the response of the three simultaneously re-examination, when all the indicators qualified, depending on whether the product is qualified, otherwise unqualified. A. 3 type test One of the following circumstances, the general type of inspection should be carried out.

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 17 pages — is available in the English PDF.

Referenced standards

Normative references

GB/T 15324Test method of the physical properties for inner tube of aircraft tyres

GB/T 532-2008 · GB/T 6326-2005 · ISO 4223

Editions of GB 15323

Edition	Title	Revision	Status
GB 15323-2009	Inner tubes for aircraft tyres	current edition	Current
GB 15323-1994	Inner tubes for aircraft tyres	previous edition	Superseded

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