GB 13651-2009Retreaded aircraft tyres (English PDF)

Foreword

This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1: Structure and Drafting Rules of Standardization Documents" Drafting:

This document replaces GB/T 13651-2009 "Aviation Retreaded Tires": Compared with GB/T 13651-2009, except for structural adjustments and editing in addition to sexual changes, the main technical changes are as follows:

a) Changed the scope of application (see Chapter 1, Chapter 1 of the:2009 edition);

b) Changed the content of tire inspection (see 4.1,:2009 version of 4:1);

c) Deleted the relevant content on tire repair (see 4.1:1:2:1 and 4:1:1:2:2 of the:2009 version);

d) Changed the requirements for the size of the inflatable outer edge (see 4.3:4, 4:2:4 of the:2009 version);

e) Added requirements for expansion size after use (see 4.3:5);

f) Changed the requirements for dynamic performance testing (see 4.3:6, 4:2:5 of the:2009 version);

g) Changed the requirements for static balance performance (see 4.3:9, 4:2:8 of the:2009 edition);

h) Changed the relevant requirements for appearance quality measuring instruments (see 5.7, 5:6 of the:2009 version);

i) The test method for internal defects has been changed (see 5.8, 5:7 of the:2009 edition);

j) Inspection rules are deleted (see Chapter 6 of the:2009 edition);

k) Added the content of gradual upgrade of renovation level (see Chapter 7):

Please note that some content in this document may be subject to patents: The publisher of this document assumes no responsibility for identifying patents:

1 Scope

This document specifies the requirements, test methods, marking, storage and use and retreading of civil aviation retreaded tires (hereinafter referred to as "retreaded tires") the level is gradually upgraded:

This document applies to the retreading of civil aviation tires:

2 Normative reference documents

The contents of the following documents constitute essential provisions of this document through normative references in the text: Among them, the dated quotations for undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to this document:

GB/T 6326 Tire terminology GB 9745 aviation tires GB/T 9746 Aviation tire series GB/T 9747 Aviation tire test methods GB/T 13652 Aerospace tire surface quality GB/T 22039 Laser digital non-destructive testing method for aviation tires HG/T 2195 Aviation tire use and maintenance

3 Terms and definitions

The terms and definitions defined in GB/T 6326 and the following apply to this document:

The process used to verify that a batch of retreaded tires is ready for the next use cycle:

4 Requirements

4.1 Tire inspection

The following inspection should be used to determine whether aviation tires can be retreaded:

a) Appearance inspection all tires should be visually inspected for their treads, sidewalls, beads and airtight layers to determine whether they need to be repaired or scrapped:

b) Air needle inspection Tires can be checked with a dry, filtered gas (such as air or nitrogen) to check whether the exhaust eye of the carcass is clear:

Check whether the carcass is delaminated and whether the condition of the bead and airtight layer (tubeless tires) meets the retreading requirements:

c) Internal inspection If necessary, use holography, laser digital, X-ray, etc: to check the internal defects of the carcass to determine whether it meets the requirements for renovation: