QJ 2609-1994 High-energy X-ray flaw detection methods for the chamber case of solid rocket motor
1 Scope and applicability
This standard specifies the apparatus and materials, image quality, protection, flaw detection methods, recording and reporting requirements for high-energy X-ray flaw detection of the chamber case of solid rocket motor (hereinafter referred to as “the chamber case”).
This standard is applicable to high-energy X-ray flaw detection of the shell, thermal insulation and liner of chamber case, grain bonding interfaces and grain. It is also applicable to high-energy X-ray flaw detection of nozzle, rear hood, front top hood and assembled motor.
2 Normative references
GB 4792 Basic health standards for radiological protection
GB 5618 Wire type image quality indicator
GJB 593.2 Specification for controlling the quality of nondestructive testing X-radiographic testing
HB 5357 Qualification and certification of aviation non-destructive testing personnel
3 Terms
3.1
D/T ratio
ratio of the distance D from the focus of the radiation source to the front end of the detected product to the distance T from the front end of the detected product to the film
3.2
bonding Interface
bonding surface between the chamber case shell, thermal insulation, liner, and grain
4 Apparatus and materials
4.1 Apparatus
4.1.1 Radiation source
1 Scope and applicability
2 Normative references
3 Terms
4 Apparatus and materials
5 Image quality
6 Personnel qualification
7 Protection
8 Detection methods
9 Record and report
Additional explanation
