NJBST Co.,Ltd.QCD-015Rev.:0Page:1 of 8Title: PROCEDURE FOR LIQUID PENETRANT EXAMINATIONPROCEDURE FOR LIQUID PENETRANT EXAMINATION液 体 渗 透 检 验 工 艺 规 程CONTROLLED 在控本 UNCONTROLLED 非在控本 COPY NO 副本编号：PREPARED BY 编制： DATE 日期： REVIEWED BY 审核： DATE 日期： APPROVED BY 批准： DATE 日期： NJBST Co.,Ltd.QCD-015Rev.:0Page:2 of 8Title: PROCEDURE FOR LIQUID PENETRANT EXAMINATIONDEMONSTRATION CERTIFICATION This is to certify that this procedure has been demonstrated on a test specimen with known defects to the satisfaction of the Authorized Inspector according to ASME Code Section V, T-150 as required by the Section Div.1, Appendix 8. Test Specimen No.: Demo. Report No.: NDE Level : AI: NJBST Co.,Ltd.QCD-015Rev.:0Page:3 of 8Title: PROCEDURE FOR LIQUID PENETRANT EXAMINATION制造厂 材料 牌号上海沪 渗透剂 HD-RS船助剂 显像剂 HD-XS 厂 清洗剂 HD-BX 1. General 1.1 This procedure is applied to dye liquid penetrant examination of metal material and weldment for ASME Code items. 1.2 This procedure is only suitable for detecting the defects that are open to the surface of material or weldment. 1.3 This procedure shall be demonstrated to the satisfaction of the AI prior to implementation.2. Personnel 2.1 The personnel engaged in the penetrant examination shall be qualified and certified in accordance with the requirement of NJBST Co., Ltd.s“Written Practice for NDE Personnel Training Examination, Qualification and Certification”(No.:QCD-011). 3. Penetrant Materials 3.1 The penetrant materials is intended to include all penetrants, solvents or cleaning agents, developers, etc, used in the examination process. 3.2 The liquid penetrant examination materials shall be designated and recommended, as shown in Table 3.2. The materials used for examination shall be the same type. Intermixing of penetrant materials from different families or different manufacturers is not permitted. Table 3.2 Manufacturer Material Model Shanghai Penetrant HD-RS (Ship Brand) Developer HD-XS Cleaning Agent HD-BX 3.3 When examining austenitic stainless steel or titanium, all materials shall be analyzed individually for chlorine and fluorine content in accordance with the procedure shown in T-641(b) of ASME Code Section V. The total chlorine plus fluorine content shall not exceed 1%of the residue by weight. The certificate of compliance from manufacturer shall be obtained. 3.4 When examining nickel base alloys, all materials shall be analyzed individually for sulphur content in accordance with the procedure shown in T-641(a) of Section V.The sulphur content shall not exceed 1%of the residue by weight. The certificate of compliance from manufacturer shall be obtained. 1 概述 11 本规程适用于ASME规范产品金属材料和焊件着色液体渗透检验。 12 本规程仅适用于探测材料或焊件表面开口类缺陷。 13 本规程在执行之前，须演示至AI满意。 2 人员 2.1 从事液体渗透检验的人员必须是根据南京定色钛业有限公司(资料号：QCD-011)进行考试和资格任命的合格人员。 3. 渗透材料 3.1 渗透材料包括检验过程中使用的所有渗透剂、溶剂或清洗剂、显像剂等。 3.2 液体渗透探伤材料，必须是指定的和推荐的，见表3.2。检验使用的材料必须是同一类型的。不允许用不同类型的或不同制造厂的渗透材料混合使用表3.2 3.3 当检验奥氏体不锈钢或钛材时，必须根据ASME规范第卷T-641(b)中的程序，对所有材料分别分析氯和氟的含量。残留氯和氟总含量不得超过残留物重量的1%，必须有制造厂相应的合格证。 3.4 当检查镍基合金时，必须按照ASME规范第卷T-641(a)中的程序，对所有材料分别分析硫含量。硫含量不得超过残留物重量的1%。必须有制造厂相应的合格证。NJBST Co.,Ltd.QCD-015Rev.:0Page:4 of 8Title: PROCEDURE FOR LIQUID PENETRANT EXAMINATION后清洗评定、记录显像、检验干燥清洁施加渗透剂预清洗，干燥表面制备Post CleaningEvaluation and RecordDevelopment and InspectionDryingCleaningPenetrant ApplicationPrecleaning and DryingSurface Preparation 4. Examination Procedure 4.1 Examination Flow Chart as shown in Fig.4.1. Fig. 4.1 4.2 Surface Preparation Prior to all penetrant examination, the surface to be examined and all adjacent areas within at least 1in. (25.4mm) shall be dry and free of dirt, grease,lint, scale, welding flux, weld spatter， paint， oil and other extraneous matter. If necessary, surface shall be prepared by grinding or machining. 4.3 Precleaning 4.3.1 The areas to be examined and adjacent areas within at least 1in. (25.4mm) shall be cleaned using cleaning agent before the penetrant is applied. 4.3.2 After cleaning, drying of the surface to be examined shall be accomplished by normal evaporation or with forced air, as appropriate. The minimum drying time shall ensure