This standard specifies a non-destructive penetrant testing for inspecting bond defects and discontinuities in the sliding surface of the bearing.
The penetration method is used to detect:
a) Bond defects in the transitional area between the bearing backing/bearing alloy material on the end faces and joint faces of multilayer plain bearings which cannot be detected by the ultrasonic testing method specified in TB/T 2959-1999.
b) Discontinuities in the sliding surface of the bearing.
The penetration method is applicable, in principle, to finished multilayer plain bearings.
The bond test can be carried out only on cast multilayer plain bearings, with a backing consisting of steel, cast steel or cast bronze. Bearing backings which cannot be tin-plated, or only with difficulty, such as perlitic cast iron, rust-resistant steel and cast aluminum, cannot be tested since no bond is possible between the bearing alloy material and bearing backing.
2 Normative reference
The following standard contains provisions which, through reference in this standard, constitute provisions of this standard. At the time of publication, the edition indicated was valid. All standards are subject to revision, and parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent edition of the standard indicated below.
TB/T 2959-1999 Plain bearings - Metallic multilayer plain bearings - Part 1: Non-destructive ultrasonic testing of bond
3 Safety precautions
Foreword i ISO foreword ii 1 Scope 2 Normative reference 3 Safety precautions 4 Inspection personnel 5 Preparation of test surface 6 Application of penetrant 7 Cleaning 8 Developing 9 Inspection 10 Subsequent cleaning 11 Inspection report Annex A (Normative) Defect classes and acceptance criteria
Plain bearings - Non-destructive penetrant testing for metallic multilayer plain bearings
1 Scope
This standard specifies a non-destructive penetrant testing for inspecting bond defects and discontinuities in the sliding surface of the bearing.
The penetration method is used to detect:
a) Bond defects in the transitional area between the bearing backing/bearing alloy material on the end faces and joint faces of multilayer plain bearings which cannot be detected by the ultrasonic testing method specified in TB/T 2959-1999.
b) Discontinuities in the sliding surface of the bearing.
The penetration method is applicable, in principle, to finished multilayer plain bearings.
The bond test can be carried out only on cast multilayer plain bearings, with a backing consisting of steel, cast steel or cast bronze. Bearing backings which cannot be tin-plated, or only with difficulty, such as perlitic cast iron, rust-resistant steel and cast aluminum, cannot be tested since no bond is possible between the bearing alloy material and bearing backing.
2 Normative reference
The following standard contains provisions which, through reference in this standard, constitute provisions of this standard. At the time of publication, the edition indicated was valid. All standards are subject to revision, and parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent edition of the standard indicated below.
TB/T 2959-1999 Plain bearings - Metallic multilayer plain bearings - Part 1: Non-destructive ultrasonic testing of bond
3 Safety precautions
Contents of TB/T 2984-2000
Foreword i
ISO foreword ii
1 Scope
2 Normative reference
3 Safety precautions
4 Inspection personnel
5 Preparation of test surface
6 Application of penetrant
7 Cleaning
8 Developing
9 Inspection
10 Subsequent cleaning
11 Inspection report
Annex A (Normative) Defect classes and acceptance criteria
