目次 1总则 (1) 2术语和符号 (2) 2.1术语 (2) 2.2符号 .(5) 3基本检测规定 (6) 3.1安全及工作环境 (6) 3.2检测人员 (6) 3.3 检测设备 (6) 3.4TOFD检测等级与检测 (9) 3.5检测工艺文件及检测程序 4检测工艺参数选择和设置 (14) 4.1般规定. (14) 4.2确定检测区域 (14) 4.3探头选取和设置 (15) 4.4PCS设置 (16) 4.5 扫查面和扫查方式选择 4.6 确定初始扫查面盲区高度和检测方式 (17) 4.7 确定初始密面育区高度和检测方式 (17) 4.8 扫查步进设置 (18) 4.9 其他参数设置 (18) 4. 10 A扫查时间窗口设置和深度校准 (18) 4. 11 检测灵.度设置 4.12检测系统校验 (20) 5检测 (21) 5.1检测准备 (21) 5.2检测数据分析和解释 +6.
5.3缺陷类型判定 (24) 5.4缺陷位置及缺陷尺寸测定 (25) 6缺陷评定与质量分级 6.1一般规定. (27) 6.2不需要疲劳验算结构焊接质量分级 (27) 6.3需要疲劳验算结构焊接质量分级 (29) 7检测记录和报告 (31) 附录A检测用试块 (33) 附录B不等厚构件检测 (40) 附录C焊接缺陷定性一般准则 (43) 附录D常见焊接缺陷TOFD图谱 (47) 附录E超声衍射时差法检测报告 (50) 用词说明 (52) 引用标准名录. (53) 附:条文说明 (55)
Contents 1General provisions 2 Terms and symbols (2) 2.1Terms 2.2Synbols (5) 3Basic test requirements .... 3. 1 Safety and working environment (6) 3.3 Test eqpnipment and equipment ** - (6) 3. 4Testing level and requirements ..**. 3. 5 Testing process docurments and testing peocedures (11) Selection and setting of inspection process parameters (14) 4. 1 General requirements (14) 4.2 Determination of detection coverage area * (14) 4.3 Probe selection and setting (15) 4. 4 PCS set (16) 4. 5 Selection of scaning surface and scanning method . ( 16) 4. 6 Determine the height of blind area of the scanning surfate and the detection method **** 4.7 Determine the initial bottom blind zone height and detection met.od ..... .(17) 4. 8 Scan to enter settings ***. (18) 4,9 Set other paratmeters of the instrument (18) 4. 10 A-scan time window setting and depth calibeation 4. 11 Detection sensitivity setting (61). 4,12 2 Inspection system verification (20) . 8 .
5Defect requirement (21) 5. 1 Test preparastion (21) 5, 2 Analysis and interpretation of test data (23) 5. 3 Judgment of defect type **** (24) 5. 4 Defect location and defect size determination (25) 6 Defect assessment and quality classification 6. 1 General requirements . (27) 6.2 Welding quality classification of structures bearing static load 6. 3 Welding quality classification of stru...
T/CECS 1483-2023 钢结构焊接对接接头超声衍射时差法(TOFD)检测技术规程.pdf
