Gentlemen, 先生们 The attached pictures depict three sections, approximately 100mm in length, sawn from the end of forging S18, WP5503415-03, P.O. 5189829. 附件照片描述了3个部分,长度大约有100mm,在锻件S18,WP5503415-03,P.O.5189829的端面形成。 DSCN8263 – depicts the orientation of the sawn sections of the forging DSCN8263 – 描述了锻件上裂纹部分的方向。 DSCN8265 – depicts the identification stamped on the end of the forging DSCN8265 – 描述了锻件端面的钢印 The sawn sections as seen in pictures DSCN8266 and DSCN8267 display defects, near the center of the forging, measuring 52 mm and 50.1 mm in width. It should be noted, the total length of the defect in this forging is 350 mm in length. 正如在DSCN8266和DSCN8267中看到的那样,裂纹部分是缺陷,靠近锻件的中心部分,测量宽度为52mm和50.1mm。应该注意的是,锻件中的缺陷的总的长度为350mm。 Specification EM323, section 5.6 - Ultrasonic Inspection states the following: “The cylinders shall be free from significant internal defects such as stringers, oxides, porosity, centerline shrinkage, burst, etc., as indicated by ultrasonic testing.” 规范EM323,章节5.6 – 超声波检测中这样说到:“滚筒体不能有明显的内部缺陷,例如纤维状夹杂物,氧化物,中心线收缩,开裂等,就像在超声波测试中说明的那样。” These defects are considered “significant internal defects” and clearly violate the acceptance criteria of the specification. 这些缺陷就是“明显的内部缺陷”,并且明显侵犯了规范中的合格标准。 Specification EM323, section 5.6 - Ultrasonic Inspection also states: “Single indications greater than 6mm (1/4”) FBH are significant and cause for rejection…..” 规范EM323,章节5.6 – 超声波检测中还说到:“单个迹象大于6mm(1/4”)FBH是明显的,并会造成拒收。” These defects are clearly “greater than 6mm “(6mm in any direction) and also violate the acceptance criteria of the specification. 这些缺陷很明显“超过6mm”(无论从哪个方向),而且明显侵犯了规范中的合格标准。
The ultrasonic testing report submitted by Shanghai records the following defect size: SGGS提交的超声波测试报告是这样记录缺陷尺寸的: 试件编号 缺陷的直径 mm 缺陷的长度 mm 18 3.6 350 There is a gross discrepancy between the reported defect size as seen in the table above and the actual size seen in the attached pictures. I strongly suggest sharing these findings with your supplier to determine why and how this occurred. 上面表格中记录的缺陷尺寸与在附件照片中看到的实际尺寸有很大的差异。我强烈建议把这些内容告诉你们的供应商,来检验为什么会发生这样的事情,怎么会发生这样的事情。
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