GB/T 34370 consists of the following parts under the general title of Nondestructive testing of amusement equipments:
——Part 1: General requirement;
——Part 2: Visual examination;
——Part 3: Magnetic particle testing;
——Part 4: Penetrate testing;
——Part 5: Ultrasonic testing;
——Part 6: Radiographic testing;
——Part 7: Eddy current testing;
——Part 8: Acoustic emission testing;
——Part 9: Magnetic flux leakage testing
——Part 10: Magnetic memory testing;
——Part 11: Ultrasonic guided wave testing;
This is Part 11 of GB/T 34370.
Nondestructive testing of amusement equipments
Part 11: Ultrasonic guided wave testing
1 Scope
This part of GB/T 34370 specifies the method of ultrasonic guided wave testing and result evaluation for amusement equipments.
This part is applicable to ultrasonic guided wave testing and result evaluation for members of amusement equipments such as metal plates (including channel steel and square beams) with wall thickness of 4 mm~80 mm, steel pipes with diameter of 16 mm ~ 2000 mm and wall thickness of 2 mm~80 mm, steel ropes and cables with diameter of 12 mm~185 mm, tie rods with diameter of 16 mm~80 mm, etc.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition (including any amendments) applies.
GB/T 12604.4 Non-destructive testing - Terminology - Terms used in acoustic emission testing
GB/T 20306 Amusement devices terminology
GB/T 20737 Non-destructive testing - General terms and definitions
GB/T 28704 Non-destructive testing - Test method for ultrasonic guided wave testing based on magnetostrictive effects
GB/T 31211 Non-destructive testing - Ultrasonic guided wave testing - General principle
GB/T 34370.1 Nondestructive testing of amusement equipments - Part 1: General requirement
GB/T 34370.3 Nondestructive testing of amusement equipments - Part 3: Magnetic particle testing
GB/T 34370.4 Nondestructive testing of amusement equipments - Part 4: Penetrant testing
GB/T 34370.5 Nondestructive testing of amusement equipments - Part 5: Ultrasonic testing
GB/T 34370.6 Nondestructive testing of amusement equipments - Part 6: Radiographic testing
GB/T 34370.7 Nondestructive testing of amusement equipments - Part 7: Eddy current testing
GB/T 34370.9 Nondestructive testing of amusement equipments - Part 9: Magnetic flux leakage testing
GB/T 34370.10 Nondestructive testing of amusement equipments - Part 10: Magnetic memory testing
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 12604.4, GB/T 20306, GB/T 20737, GB/T 28704 and GB/T 31211 apply.
4 Method summary
4.1 Principle of ultrasonic guided wave testing
According to characteristics of the member under testing, ultrasonic guided waves propagating along the member are excited in a certain way. When the guided wave encounters a flaw, it will produce a reflection echo. The echo signal is received by a receiving sensor, and the location and size of the flaw can be discriminated by analyzing the characteristics and propagation time of the echo signal.
Magnetostrictive ultrasonic guided wave testing method is a method of testing members by using ultrasonic guided waves produced by magnetostrictive effect.
Piezoelectric ultrasonic guided wave testing method is a method of testing members by using ultrasonic guided waves produced by piezoelectric effect.
4.2 Ultrasonic guided wave testing method for plates
SH wave or Lamb wave is generally used for ultrasonic guided wave testing of plates. Ultrasonic guided wave in SH mode is generally excited by sheet magnetostrictive transducer, while Lamb wave is generally excited by piezoelectric ultrasonic guided wave transducer. The principle of piezoelectric ultrasonic guided wave testing for plates is shown in Figure 1, while that of magnetostrictive ultrasonic guided wave testing for plates is shown in Figure 2. Ultrasonic guided wave testing method for plates may be used as that for members such as I-steel, channel steel, square beam, etc.
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Method summary
5 Safety requirements
6 Personnel requirements
7 Testing apparatus
8 Testing procedure specification
9 Testing procedure
10 Grading and treatment of testing results
11 Testing record and report
GB/T 34370 consists of the following parts under the general title of Nondestructive testing of amusement equipments:
——Part 1: General requirement;
——Part 2: Visual examination;
——Part 3: Magnetic particle testing;
——Part 4: Penetrate testing;
——Part 5: Ultrasonic testing;
——Part 6: Radiographic testing;
——Part 7: Eddy current testing;
——Part 8: Acoustic emission testing;
——Part 9: Magnetic flux leakage testing
——Part 10: Magnetic memory testing;
——Part 11: Ultrasonic guided wave testing;
This is Part 11 of GB/T 34370.
Nondestructive testing of amusement equipments
Part 11: Ultrasonic guided wave testing
1 Scope
This part of GB/T 34370 specifies the method of ultrasonic guided wave testing and result evaluation for amusement equipments.
This part is applicable to ultrasonic guided wave testing and result evaluation for members of amusement equipments such as metal plates (including channel steel and square beams) with wall thickness of 4 mm~80 mm, steel pipes with diameter of 16 mm ~ 2000 mm and wall thickness of 2 mm~80 mm, steel ropes and cables with diameter of 12 mm~185 mm, tie rods with diameter of 16 mm~80 mm, etc.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition (including any amendments) applies.
GB/T 12604.4 Non-destructive testing - Terminology - Terms used in acoustic emission testing
GB/T 20306 Amusement devices terminology
GB/T 20737 Non-destructive testing - General terms and definitions
GB/T 28704 Non-destructive testing - Test method for ultrasonic guided wave testing based on magnetostrictive effects
GB/T 31211 Non-destructive testing - Ultrasonic guided wave testing - General principle
GB/T 34370.1 Nondestructive testing of amusement equipments - Part 1: General requirement
GB/T 34370.3 Nondestructive testing of amusement equipments - Part 3: Magnetic particle testing
GB/T 34370.4 Nondestructive testing of amusement equipments - Part 4: Penetrant testing
GB/T 34370.5 Nondestructive testing of amusement equipments - Part 5: Ultrasonic testing
GB/T 34370.6 Nondestructive testing of amusement equipments - Part 6: Radiographic testing
GB/T 34370.7 Nondestructive testing of amusement equipments - Part 7: Eddy current testing
GB/T 34370.9 Nondestructive testing of amusement equipments - Part 9: Magnetic flux leakage testing
GB/T 34370.10 Nondestructive testing of amusement equipments - Part 10: Magnetic memory testing
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 12604.4, GB/T 20306, GB/T 20737, GB/T 28704 and GB/T 31211 apply.
4 Method summary
4.1 Principle of ultrasonic guided wave testing
According to characteristics of the member under testing, ultrasonic guided waves propagating along the member are excited in a certain way. When the guided wave encounters a flaw, it will produce a reflection echo. The echo signal is received by a receiving sensor, and the location and size of the flaw can be discriminated by analyzing the characteristics and propagation time of the echo signal.
Magnetostrictive ultrasonic guided wave testing method is a method of testing members by using ultrasonic guided waves produced by magnetostrictive effect.
Piezoelectric ultrasonic guided wave testing method is a method of testing members by using ultrasonic guided waves produced by piezoelectric effect.
4.2 Ultrasonic guided wave testing method for plates
SH wave or Lamb wave is generally used for ultrasonic guided wave testing of plates. Ultrasonic guided wave in SH mode is generally excited by sheet magnetostrictive transducer, while Lamb wave is generally excited by piezoelectric ultrasonic guided wave transducer. The principle of piezoelectric ultrasonic guided wave testing for plates is shown in Figure 1, while that of magnetostrictive ultrasonic guided wave testing for plates is shown in Figure 2. Ultrasonic guided wave testing method for plates may be used as that for members such as I-steel, channel steel, square beam, etc.
Contents of GB/T 34370.11-2020
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Method summary
5 Safety requirements
6 Personnel requirements
7 Testing apparatus
8 Testing procedure specification
9 Testing procedure
10 Grading and treatment of testing results
11 Testing record and report
