无损检测UT工艺规程

2012年6月1日起实施

无损检测（UT）工艺规程

Regulation Of Ultrasonic Testing

目录

List

1主题内容The subject content (2)

2适用范围Application scope (2)

3参考文件Reference documents (2)

4人员资格Personnel qualification (3)

5 设备要求Equipment requirements (3)

6 探头Probe (4)

7 试块Test block (4)

8设备仪器校验Instrument calibration of equipments (6)

9探头校准和耦合剂Probe calibration and coupling (6)

10距离-波幅曲线（DAC曲线）Distance Amplitude Curve (6)

11校验与复核Verifying and rechecking (8)

12 检测程序Testing procedures (9)

13 评定Assessing (17)

14 记录Records (19)

15 报告Report (19)

附录Appendix (19)

1主题内容The subject content

本工艺流程规定了本司船舶产品超声检测的一般要求、技术等级、工艺文件、检测实施和焊缝质量分级等。

This regulation provides the general requirements, technical levels, process documents, test implementation and welding quality classification of ultrasonic testing on our company.

2适用范围Application scope

本工艺流程适用于本司造船、修船及非船产品零部件母材厚度为（8～150）mm铁素体钢全熔焊透缝A型脉冲反射式手工接触的超声波检测；不适用于铸钢及奥氏体钢焊缝，外径<250mm和内外径之比<70%的纵向焊缝；外径小于200mm的筒体周向焊缝、各种尺寸曲面相贯焊缝。

This regulation is applicable to A type pulse reflection type of manual contact ultrasonic testing for 8～150mm thickness of ferrite steel complete fusion welding on our company’s shipbuilding, repairing and parts of no-marine products. No applicable to cast steel and austenitic steel welds, longitudinal weld of outer diameter less than 250mm and the inner and outer diameter ratio less than 70%, column ring weld of outside diameter less than 200mm; various size of bend surface joining welds.

3参考文件Reference documents

3.1 JB/T4730-2005 《压力容器无损检测》超声波检测部分；

3.1 JB/T4730-2005 The ultrasonic detection part of "nondestructive testing of pressure vessels".

3.2中国船级社无损检测超声检测教材

3.2 The ultrasonic textbook compiled by CCS.

3.3 JB4126《超声检测用钢质试块的制造和控制》

3.3 JB4126 "The manufacture and control of steel test piece for ultrasonic testing".

3.4 ZBJ04001《A型脉冲反射式超声波探伤系统工作性能测试方法》

3.4 ZBJ04001 "The performance test methods of A type pulse reflection ultrasonic flaw detection system".

3.5 ZBY230《A型脉冲反射式超声波探伤仪通用技术条件》

3.5 ZBY230 "General technical conditions of A type pulse reflection ultrasonic testing instrument".

3.6 ZBY232《超声波探伤用1号标准试块技术条件》

3.6 ZBY232 "Technical conditions of 1 type standard test piece for ultrasonic testing".

3.7 ZBY231《超声波探伤用探头性能测试方法》

3.7 ZBY231 "The performance test methods of probe for ultrasonic inspection".

3.8 CB/T3959-2011《船舶钢焊缝超声波检测工艺和质量分级》

3.8 CB/T3959-2011 "Technology and quality classification of ultrasonic testing in ship steel weld".

3.9 DNV入级指导No.7中超声检测部分

3.9 The ultrasonic detection part of joining DNV direction No.7.

3.10 CTS-4020数字式超声波探伤仪使用说明书