8-4液体渗透检测工艺规程 2012

LIQUID PENETRANT EXAMINATION PROCEDURE 液体渗透检测工艺规程液体渗透检测工艺规程 Prepared By 编制: Date 日期: Reviewed By 审核: Date 日期: Approved By 批准: Date 日期 : Statement of Demonstration Certification 演示证实声明 We hereby certify that the Liquid Penetrant Examination Procedure (QCNP-04, 2012/ Rev.0) has been demonstrated on a test specimen with known defects to the satisfaction of the AI according to ASME Code Section V, T-150 as required by the Appendix 8 of Section VIII, Div. 1. 兹证明该液体渗透检测工艺规程已按照 ASME 规范第卷 T-150 和 第-1 卷强制性附录 8 的要求，在带缺陷试板上进行了演示。演示结果令 AI 满意。 Specimen No.: 试板编号： Demo. Report No.: 演示报告编号： Certified by NDE Level III: Date: 级证明人 AI: Date: 授权检验师： 1 General 概述 1.1 This procedure is applied to dye liquid penetrant examination of metal material and weldment for ASME Code items. 本规程适用于 ASME 规范产品金属材料和焊件着色液体渗透探伤。 1.2 This procedure is only suitable for detecting the defects that are open to the surface of material or weldment. 本规程仅适用于探测材料或焊件表面开口类缺陷。 1.3 This procedure shall be certified by demonstration to the satisfaction of the AI prior to implementation. 本规程在执行之前，需通过演示令 AI 满意。 2 Personnel 人员 The personnel engaged in the penetrant examination shall be qualified and certified in accordance with the requirement of the companys “Written Practice for NDE Personnel Training, Qualification however, the size of the indication is the basis for acceptance evaluation. Only indications with major dimensions greater than 1/16in. (1.5mm) shall be considered relevant. 显示是机加工瑕疵的证据。只有主尺寸大于 1/6in（1.5）的显示才可认为是有关的，不允许 存在可能掩盖不连续指示的大范围残存着色区。这些区域应清洗干净，并重新做检验。 (1) A linear indication is one having a length greater than three times the width; 线性显示是指长度大于宽度三倍的显示。 (2) A rounded indication is one of circular or elliptical shape with the length equal to or less than three times the width; 圆形显示是指长度等于或小于宽度三倍的圆形或椭圆形显示。 (3) Any questionable or doubtful indications shall be reexamined to determine whether or not they are relevant. 任何有疑问或难以判断的迹象应作进一步检验以确认是否是缺陷。 7 Acceptance Standards 合格标准 7.1 For Pressure Vessels 压力容器的合格标准： According to Appendix 8 of ASME Code Section , Div.1 the following relevant indications are unacceptable: 下列相关指示是不合格的： a. Any cracks or relevant linear indications; 任何裂纹或线性指示； b. Relevant rounded indications greater than 3/16in. (5.0mm); 尺寸大于 3/16 in.(5.0 mm)的圆形指示； c. Four or more relevant rounded indications in a line separated by 1/16 in. (1.5mm) or less (edge to edge); 在同一直线上的四个或四个以上的圆形指示，其边缘间的距离等于或小于 1/16in.(1.5 mm)； 8 Repairing and Reexamining 返修区： Doc. No. 文件号： TC/QP-8-4JSTC QC Procedures 程 序 文 件 Edition版 本： 2012 Shop Construction of Pressure Vessel Parts in Accordance with ASME Code Section VIII, Division 1 按 ASME 规范第卷第 1 分册建造压力容器部件 Revision 修订号： 0 Liquid Penetrant Examination Procedure 液体渗透检测工艺规程液体渗透检测工艺规程 Page 页码： 11 of 12 The repaired area shall be reexamined according to the original examination procedure. 应按原 PT 探伤工艺重新探伤。 9 Report 报告 The liquid penetrant examination report shall include examination condition, used penetrant material and a sketch of parts examined and examination results. 液体渗透检验报告必须包括检验条件、使用的渗透材料、被检部件草图和检验结果； The report shall be prepared by the NDE Level II and approved by Level III prior to submission to the AI for acceptance. 液体渗透检验报告报告由 NDE级无损检测人员编制，由 NDE级人员审核后提交 AI 认可。 10. Examination Records. For each examination, the following information shall be recorded： 对每次检验，应记录如下资料 (a) procedure identification and revision; 规程识别号和修订号 (b) liquid penetrant type (visible or fluorescent); 渗透剂类型（目视或荧光） (c) type(number or letter designation) of each penetrant ,penetrant remover , emulsifier, and developer used ; 所用的每种渗透剂，渗透去除剂，乳化剂和显像剂 (d) examination personnel identity and if required by referencing Code Section, qua