ASME焊接规范(修改)

ASME压力容器与锅炉焊接工艺要点评定原则及要求ASME是美国机械工程师协会（American Society of Mechanical Engineers）的简称，ASME BPVC（Boiler and Pressure Vessel Code）是ASME制定的压力容器和锅炉规范，为了确保压力容器和锅炉的安全运行，ASME BPVC对焊接工艺、评定原则和要求进行了规范。

下面，将详细介绍ASME压力容器与锅炉焊接工艺要点、评定原则及要求。

一、焊接工艺要点：1.材料选择：应根据压力容器和锅炉的工作条件，选择适合的材料，确保其机械性能和耐腐蚀性能满足要求。

2.试样和检测：在焊接前，应根据标准要求制作试样，进行材料的化学成分分析和力学性能测试。

焊接后，需要进行缺陷检测，如X射线检测、超声波检测等。

3.焊材选择：应选用符合ASME规范要求的焊材，包括焊丝、焊剂、焊剂分析试剂等。

4.焊接工艺参数：应控制好焊接参数，包括预热温度、焊接电流和电压、焊接速度等。

同时，要进行记录和检验，确保焊接质量。

5.焊接工艺规范：应编制和执行符合ASME规范的焊接工艺规范，确保焊接过程的可追溯性和一致性。

6.焊接人员培训：根据ASMEBPVC要求，焊接人员需要经过相关培训和考试，取得相应的资格证书。

二、评定原则：1.符合ASMEBPVC规范：焊接工艺、焊接人员、焊材选择等必须符合ASMEBPVC的规范要求，确保焊接质量和安全性。

2.焊接质量控制：焊接过程中，要进行监测和控制焊接质量，尽量避免焊接缺陷和不合格情况的发生。

3.缺陷评定：对焊接接头进行非破坏性检测，如X射线检测、超声波检测等，评定焊接接头的缺陷情况，并根据规范要求进行合理评定和修复。

4.焊接质量验收：根据ASMEBPVC的要求，对焊接接头进行质量验收，确保焊接接头满足设计要求和安全使用。

三、要求：1.焊接工艺评定：在实际生产中，应对焊接工艺进行评定，包括焊接工艺规范的编制和执行过程，以及焊接人员的培训和证书要求。

ASME规范产品焊接管理的探讨摘要：ASME规范产品的建造是一项系统化的工作，焊接作为特殊工序是ASME规范产品中十分关键的控制环节。

本文对ASME规范产品建造过程中的焊接管理从质量体系建立、人员管理、焊接文件、焊材控制、焊接过程控制、焊缝返修等方面进行了分析和探讨。

关键词：ASME 钢印产品焊接管理质量控制1 ASME质量体系的建立公司根据ASME要求建立了ASME质量体系，编制了ASME质量手册及程序文件，首版2011年正式发布执行。

ASME质量控制手册是该质量控制体系的书面文字叙述，是ASME钢印产品质量控制的纲领性文件，公司员工在安装及制造规范产品时，必须严格遵照执行ASME规范、ASME质量手册和美国锅炉压力容器检验师总部检验规范的要求，不得违反。

ASME质量手册中包含“焊接管理”和“热处理”两个章节，程序文件中包含6个焊接相关的管理程序，内容涵盖了焊缝识别、缺陷返修、热处理、焊材管理、目视检验等工作。

工欲善其事必先利其器，ASME质量手册和程序文件的编制发布为钢印产品的建造奠定了坚实的管理基础。

2 人员管理ASME标准中对三种人员的有资质要求，即NDT检验人员、VT目视检验人员和焊工/焊接操作工。

NDT检验人员资质外部取证，VT检验人员的培训及授权由QC部负责。

焊工技能评定和焊工资质管理成为焊接管理的一项重要工作。

焊工技能评定需严格按照ASME IX执行。

ASME标准相对于国内标准而言焊工评定的适用范围是比较宽的，但是进行ASME焊工评定时需要注意焊接变素的限制。

在实际的焊工评定中，可依据规范要求，综合考虑各焊接变素及评定范围，合理的选取焊工评定(操作)方法、母材试件的尺寸、母材P-No.及焊材F-No.,尽可能的扩大焊工技能评定覆盖范围。

ASME规范产品的焊工资质管理是一项严谨而且持久的工作，焊工资质需严格控制并由专人进行管理维护。

每个合格焊工分配一个唯一焊工钢印号来识别。

依据焊工评定记录WPQ编制“已有资格焊工及焊接操作工一览表”，并定期根据焊工的实际操作活动更新和完善“焊工和焊接操作工资格连续操作记录”，以确保焊工资质有效。

第二章焊接工程壹、前言:鍋爐建造中焊接工作量與起重、冷作組立並列為三大主要工作項目之ㄧ。

本處現場監工對於焊接工作可能無法像現場施作的焊工一般具備相當之焊接技術能,但只要熟悉與焊接有關的知識,諸如材料規格、焊材特性、焊材保存規範、焊口設計、預熱熱處理方式,焊工評核管理與焊口現場施工管制等,則對於焊接工作整體進度的推展及品質異常發生的抑止有極大的幫助。

本文有關焊接工作僅就鍋爐建造時與焊接有關工作之基本概念做原則性的論述,至於實際有關焊接之材料請購、設計、施工、檢驗等規範應依本企業之『配管工程規範』施作。

貳、材料1. 材料規範(1) 本企業採用之主要材料規範一般有ATSM美國材料試驗協會JIS日本國家標準DIN德國國家標準等(2) 工程人員可由上述規範裡獲得材料相關之物理、化學性質資訊藉以判別選用之材料是否合格,並提供材料之熱處理工作要求2.壓力及溫度定義(1) 設計壓力(ANSI)管系之設計壓力為在正常操作時所能預期最嚴重狀況(The MostSevere Condition)下的最大操作壓力。

(2) 設計溫度(ANSI)管系設計溫度為最嚴重狀況下的管材金屬溫度(MetalTemperature)。

3.材料規格標示鍋爐壓力件管材、配件均有其固定之標示方式。

工程人員須能正確的郵物件外部之標示中了解該物件之金屬成分溫度壓力等級以避免在施焊過程中選用錯誤焊條璧如:(1) 管材標示:A106 Gr.B ＊4” ＊SCH40 Pipe ,由A106 Gr.B知悉管材為無缝碳鋼管(2) 管配件標示: A216 Gr.WCB 16” ＊12” Tee, 由A216 Gr.WCB知悉管三通材料為鑄造成型之碳鋼材(3) 鋼板規格標示:A387 Gr.22-2 5’ ＊20’＊12t Plate,由A387Gr.22-2 知該鋼板材料為含鉻2.25%之低合金鋼材ASTM常用之材料表如下表:詳如附表一4.焊材選用(1) 當了解母材材料成份之後,對於同種金屬材料之焊接在選擇焊條上只要選擇相同之填料金屬焊條即可,但仍須依據焊接程序書WPS之施工條件進行施焊。

Paragraph 段落号Changes修改内容Explanation解释U-1(g) U-1(g)(1) Unfired steam boilers shall be constructed in accordance with the rules of Section I or this Division [see UG-125(b) and UW-2(c)].U-1(g)(2)The following pressure vessels in which steam is generated shall not be considered as unfired steamboilers[不能被认为是非火焰直接加热蒸汽锅炉], and[并且] shall be constructed in accordance with the rules of thisDivision:(a) vessels known as evaporators or heat exchangers;(b) vessels in which steam is generated by the use of heat resulting from operation of a processing systemcontaining a number of pressure vessels such as used in the manufacture of chemical and petroleumproducts;(c) vessels in which steam is generated but not withdrawn for external use.Table U-3 Added ISO-148(Part 1, 2, & 3) to Table U-3 [在表U-3中增加ISO-148(第1, 2和3部分)]Charpy Pendulum Impact Test Part 1: Test Method, ISO 148-1: 2006 [Charpy摆锤冲击试验,第一部分:试验方法, ISO 148-1:2006]Charpy Pendulum Impact Test Part 2: Verification of Test Machines: ISO 148-2:2006 [Charpy 摆锤冲击试验,第二部分:试验机的验证, ISO 148-2:2006]Charpy Pendulum Impact Test Part 3: Preparation and Characterization of Charpy V Reference TestPieces for Verification of Test Machines: ISO-148-3: 2006 [Charpy摆锤冲击试验,第三部分: 用于试验机验证的Charpy-V 试验方法试样的制备和特征, ISO 148-3:2006]UG-84(b)(1) is revised to add ISO-148 (Parts 1, 2 & 3) as acceptable for impact test procedures and apparatus in addition to SA-370.It was discovered that there are virtually no ASTM strikers available for use throughout Europe, Asia or Australia. It was also learned that the ISO striker profile has no real effect on absorbed energy values up to 74 ft-lbs. In materials with toughness in excess of 75 ft-lbs, the ISO striker is slightly more conservative and will produce absorbed energy values that are slightly lower than those obtained using the ASTM striker. Lateral expansion values will vary no more than .001 inch when based on acceptance criteria of .015 inch lateral expansion. Based upon these facts it is proposed that impact testing in accordance with ISO-148 also be permitted in UG-84(b)(1).[UG-84(b)(1)已经修改,除了SA-370以外,对于冲击试验的程序和设备,允许采用ISO-148(第1, 2和3部分)标准.]UG-11(c) (5) UG-11(c)(5) added under UG-11(c) “Welded Standard Pressure Parts for Use Other Than the Shell or Heads of a Vessel." [在UG-11(C)下增加UG-11(C)(5) ”除容器筒体或封头以外的标准焊接承压件”](5) The Manufacturer of the vessel to be marked with the Code Symbol shall be satisfied that the parts aresuitable for the design conditions specified for the complete vessel in accordance with the rules of thisDivision and that the requirements of (1), (2), (3) and (4) above have been met for each welded standardpressure part.[负责打容器规范钢印的制造厂应该获得确认,即这些零件适合符合本规范要求的容器设计要求, 并且上述(1),(2),(3)和(4)的要求也得到满足.] The addition of UG-11(c)(5) is proposed to address a concern that the vessel Manufacturer needs to verify that welded standard pressure parts comply with the rules of this Division. Similar words are already provided at the end of UG-11(a) and UG-11(b).与UG-11(a), UG-11(b)最后部分的叙述相一致,即容器制造厂要验证标准焊接承压件符合规范的要求.UG-14(b),(b) Except for flanges of all types, hollow cylindrically-shaped parts [up to and including NPS 4 (DN l00)] may be machined from rolled or forged bar,[用轧制或锻制的棒料机加工] provided that the axial length of the part isapproximately parallel to the metal flow lines of the stock. Other parts, such as heads or caps [up to and includingNPS 4 (DN 100)], not including flanges, may be machined from rolled or forged bar.[可以用轧制或锻制的棒料机加工]Elbows, return bends, tees, and header tees shall not be machined directly from barstock.This change would make UG-14(b) consistent with UG-14(a), SA-182 A06 5.4 and 6.5; SA-403 A06 4.1, 5.12 and 6.4, and Code Case 2148, which do not have any requirement for “hot-rolled bar” and would permit other cold-rolled bar.Annul Code Case 2148 six months after publication of the changes与UG-14(a)保持一致, 不要求”热轧棒料”.Paragraph 段落号Changes修改内容Explanation解释UG-35.2(d)UG-35.2(d)(1)Quick-actuating closures that are held in position by a locking mechanism designed for manual operation shall be designed such that if an attempt is made to open the closure when the vessel is underpressure, the closure will leak prior to full disengagement of the locking components and release of theclosure. The design of the closure and vessel shall be such that any leakage shall be directed away from thenormal position of the operator.(中文翻译略) It has been pointed out the paragraph UG-35.2(d)(1) can misinterpreted to require a closure to leak when the locking mechanisms are still fully engaged. This is not the intent of this paragraph. The paragraph is intended to make sure that if someone ties to open a closure which is under pressure that it will leak before the locking mechanism is fully disengaged and the closure is released. The re-wording clarifies this design requirement. In addition was pointed out that the designer of the closure may not know the location of the operator since he may not be the designer of the vessel or system. The re-wording clarifies this requirement没有技术上的修改,只是叙述更清楚.UG-36(b)(1)UG-36 Openings in Pressure Vessels…(b) Size of Openings(1) Properly reinforced openings in cylindrical and conical[锥型]shells are not limited as to size except with thefollowing provisions for design. The rules in UG-36 through UG-43 apply to openings not exceeding the following: forvessels 60 in. (1500 mm) inside diameter and less, one-half the vessel diameter, but not to exceed 20 in. (500 mm);for vessels over 60 in. (1500 mm) inside diameter, one-third the vessel diameter, but not to exceed 40 in. (1000 mm).(For conical shells, the inside diameter as used above is the cone diameter at the center of the opening) [(对于锥型筒体, 上述所指的内径是开孔中心处的锥体直径)]. For openings exceeding these limits, supplemental rules of1-7 shall be satisfied in addition to UG-36 through UG-43. Alternatively, openings in cylindrical or conical shellsexceeding these limits may be designed for internal pressure using the rules of 1-10 in lieu of those given in1-7(a) and / or 1-7(b).[作为另外一种方法,在圆筒体或锥形壳体上的超过这些限制的开孔也可以以内压按照附录1-10的规定来设计,而不必按照附录1-7(a) 和/或 1-7(b).]Added new appendix 1-10 for alternative method for design of large openings and revised UG-36(b)(1) to refer to it.Clarified that cones are also included in the reinforcement design rules in these sections. A note is also added to Appendix 1-7(b)(1) limiting application of the 1-7(b) rules to cones with a half apex angle not exceeding 30 degrees澄清了补强设计也适用于锥体. 在附录1-7(b)(1)中增加了一个注解以说明附录1-7(b)的规定仅适用于锥体半顶角不超过30度的情形.新增加了用于大开孔设计的另一方法附录1-10.UG-37UG-37(h) added under UG-37 REINFORCEMENT REQUIRED FOR OPENINGS IN SHELLS AND FORMED HEADS [新增UG-37(h)](h) The reinforcement rules in this Division are applicable for internal or external pressure and do notaddress the requirements for openings under the action of externally applied loadings (such as pipereactions). When externally applied loadings are to be considered, see U-2(g).[(h)本规范的规定适用于内压或外压,并没有规定适用于承受外部栽荷的开孔的要求(外部载荷指例如管子反作用力).如果考虑外部栽荷,参见U-2(g)] The reinforcement rules in Section VIII Division 1 are applicable for internal or external pressure and do not address the requirements for openings under the action of externally applied loadings (such as pipe reactions). This item was proposed because of several requests for interpretation that asked what opening reinforcement rules were applicable under loads other than pressure. This proposed action does not change any Code requirements, it merely provides information that may useful to the designer.澄清本规范的开孔补强规定适用于内压或外压,不适用于承受外部栽荷的情形.UG-37 Text in UG-37(a) revised:UG-37 REINFORCEMENT REQUIRED FOR OPENINGS IN SHELLS AND FORMED HEADS(a) Nomenclature. The symbols used in this paragraph are defined as follows:…The reinforcement rules of UG-37(a) are not clearly defined for the case of ERW or autogenously welded pipe or tube. The definition of “tr” in UG-37(a) implies that the seamless allowable stress values should be used in the calculation ofParagraph 段落号Changes 修改内容Explanation解释E = 1 (see definitions for t r and t r n)E 1 = 1 when an opening is in the solid plate or in a Category B butt joint; or= 0.85 when an opening is located in an ERW or autogenously welded pipe or tube. If the ERW or autogenously welded joint is clearly identifiable and it can be shown that the opening does not pass thru this weld joint, then E 1 may be determined as using the other rules of this paragraph; or[=0.85, 当一个开孔位于一个ERW 或自身焊接管时. 如果ERW 或自身焊接管接头清晰可见并且可以看到开孔并非通过该焊接接头时, 则E1可以以本段其它规则来确定,或]= joint efficiency obtained from Table UW-12 when any part of the opening passes through any other welded joint …the required thickness “tr”, even though the shell is constructed of ERW or autogenously welded pipe or tube. Past Interpretations VIII-1-92-25R and VIII-1-98-12 also support the use of seamless allowable stresses for the calculation of “tr” in ERW or autogenously welded pipe or tube.The proposed changes require that “E1” is taken as 0.85 for all shells constructed of ERW or autogenously welded pipe or tube, unless it can be shown that no part of the opening passes thru the ERW or autogenously welded joint. In the case where the ERW joint is readily identifiable and it can be shown that the opening does not pass thru the ERW weld joint, then “E1” may be determined using the other definitions of “E1” given in paragraph UG-37(a).新增要求.原来没有规定在计算tr 时,开孔位于ERW 或自身焊接管上时如何确定E1UG-42(a)(2), (c) & (e),UG-42 REINFORCEMENT OF MULTIPLE OPENINGSa) (See UG-39 for multiple openings in flat heads.) (a) When any two openings are spaced at less than two times their average diameter, so that their limits of reinforcement overlap [see Fig. UG-42 sketch (a)], the two openings shall be reinforced in the plane connecting the centers, in accordance with the rules of UG-37, UG-38, UG-40, and UG-41 with a combined reinforcement that has an area not less than the sum of the areas required for each opening. No portion of the cross section is to be considered as applying to more than one opening, nor to be considered more than once in a combined area(1) The available area of the head or shell between openings having an overlap area shall be proportioned between the two openings by the ratio of their diameters.(2) For cylinders and cones [对于圆筒和锥体] if the area of reinforcement between the two openings is less than 50% of the total required for the two openings, the supplemental rules of 1-7(a) and (c) shall be used. (3) A series of openings all……..c) Alternatively, any number of adjacent openings, in any arrangement, may be reinforced by using an assumed opening enclosing all such openings. The limits for reinforcement of the assumed opening shall be those given in UG-40(b)(1) and (c)(1). The nozzle walls of the actual openings shall not be considered to have reinforcing value. For cylinders and cones [对于圆筒和锥体] when the diameter of the assumed opening exceeds the limits in UG-36(b)(1), the supplemental rules of 1-7(a) and (c) shall also be used.e) When a series of two or more openings in a cylindrical or conical [或锥体] shell are arranged in a regular pattern, reinforcement of the openings may be provided per the rules of ligaments in UG-53. This item was established to make revisions to UG-36, UG-42 and Appendix 1-7 clarifying that cones are also included in the reinforcement design rules in these sections. A note is also added to Appendix 1-7(b)(1) limiting application of the 1-7(b) rules to cones with a half apex angle not exceeding 30 degrees澄清了补强设计也适用于锥体. 在附录1-7(b)(1)中增加了一个注解以说明附录1-7(b)的规定仅适用于锥体半顶角不超过30度的情形UG-84(a) &UG-84(b)(1). UG-84 CHARPY IMPACT TESTS UG-84(a) General. Charpy V-notch [V 型缺口] impact tests in accordance with the provisions of this paragraph shallbe made on weldments and all materials for shells, heads, nozzles and other vessel parts subject to stress due to pressure for which impact tests are required by the rules in Subsection C.UG-84(b)(1) Impact test procedures and apparatus shall conform to the applicable paragraphs of SA-370 or ISO-148 (Parts 1, 2 and 3) [或ISO-148 (第1, 2 和 3部分)] ISO-148 allows the usage of both Charpy V-notch and U-notch testing. Inclusion of ISO-148 into the code will require the words "V-notch" be added to UG-84(a) to ensure that Charpy V-notch testing is used exclusively.Include ISO-148 (Parts 1, 2 & 3) for CVN testing procedures & apparatus (ISO Striker). A recent incident has led to the discovery that the impact testing apparatus used throughoutParagraph 段落号Changes修改内容Explanation解释most of the industrial world (Europe, Asia & Australia) is not incompliance with SA-370/ASTM E23 because the Strikerprofile on the ISO machine has a different profile than theprofile designated by ASTM. Outside the USA mostcompanies and testing laboratories are using the ISO impacttesting apparatus in accordance with ISO-148 Therefore, anyimpact testing that is performed outside the USA cannot be instrict accordance with UG-84 as it is currently written. It wasdiscovered that there are virtually no ASTM strikers availablefor use throughout Europe, Asia or Australia. It was alsolearned that the ISO striker profile has no real effect onabsorbed energy values up to 74 ft-lbs. In materials withtoughness in excess of 75 ft-lbs, the ISO striker is slightlymore conservative and will produce absorbed energy valuesthat are slightly lower than those obtained using the ASTMstriker. Lateral expansion values will vary no more than .001inch when based on acceptance criteria of .015 inch lateralexpansion. Based upon these facts it is proposed that impacttesting in accordance with ISO-148 also be permitted inUG-84(b)(1).除了SA-370以外,对于冲击试验的程序和设备,允许采用ISO-148(第1, 2和3部分)标准.但因为ISO-148还包括了U型缺口的冲击试验,所以在UG-84要规定V型缺口.UG-90(b)(19) UG-90 GENERAL(b) The Manufacturer has the responsibility of assuring that the quality control, the detailed examinations, and thetests required by this Division are performed. The Manufacturer shall perform his specified duties. See UG-92 and10-15. Some, but not all, of these responsibilities, which are defined in the applicable rules, are summarized asfollows:…(19) providing for retention of radiographs (UW-51), ultrasonic test reports (12-4), and Manufacturer’s DataReports (UG-120),and other documents as required by this Division (10-13). [和本规范附录10-13规定的其它文件]Revise Appendix 10-13 to require the retention of pertinent records by the Manufacturer for at least three years after signing of the Manufacturers Data Report.附录10-13作了修改, 要求部分有关的记录必须在”制造厂数据报告”签发以后至少保留三年.UG-117(f); UG-117 CERTIFICATES OF AUTHORIZATION AND CODE SYMBOL STAMPSUG-117(f) Evaluation for Authorization and Reauthorization. Before issuance or triennial renewal of a Certificate ofAuthorization for use of the U or UM Stamp, the Manufacturer’s facilities and organization are subject to a joint reviewby a representative of his inspection agency and an individual certified as an ASME Designee who is selected by theconcerned legal jurisdiction. A written description or checklist of the Quality Control System which identifies whatdocuments and what procedures the Manufacturer will use to produce a Code item shall be available for review.A written report to the Society shall be made jointly by the ASME Designee and the Inspection Agency employed bythe Manufacturer to do his Code inspection. This report is then reviewed by the Subcommittee on Boiler and PressureVessel Accreditation, which will either issue a Certificate of Authorization or notify the applicant of deficienciesrevealed by the review. In such a case, the applicant will be given an opportunity to explain or correct thesedeficiencies. The changes allow the Manufacturers to be audited more comprehensively.Revise UG-117(f) to make the retained records available to the Authorized Inspector (AI) supervisors or Review Teams for the purpose of performing reviews for the issue or renewal of Certificates of Authorization.该修改允许制造厂能够得到更全面的审查,在取证或换证审查中,相关的记录要提供给AIS或审核组审查.Paragraph 段落号Changes 修改内容Explanation解释Certificates of Authorization will be endorsed to indicate the scope of activity authorized. Authorization may include field operations if the review team determines that these operations are adequately described in the quality control manual, and this determination is accepted by the Society.Before issuance or renewal of a Certificate of Authorization for use of the UV or UD Stamp, the valve or rupture disk device Manufacturer’s or Assembler’s facilities and organization are subject to a review by a representative from an ASME designated organization. A written description or checklist of the quality control system, which identifies the documents and procedures the Manufacturer or Assembler will use to produce Code pressure relief valves, shall be available for review. The representative from an ASME designated organization shall make a written report to the Society, where the Subcommittee on Boiler and Pressure Vessel Accreditation will act on it as described above.The purpose of the review is to evaluate the applicant’s Quality Control System and its implementation. The applicant shall demonstrate sufficient administrative and fabrication functions of the system to show that he has the knowledge and ability to produce the Code items covered by his Quality Control System. Fabrication functions may be demonstrated using current work, a mockup, or a combination of the two. Additionally, retained records as required by this division and the Quality Control System, shall be made available to the Authorized Inspector Supervisors or the review teams designated by the ASME. [另外, 本规范和质量控制体系要求的保存的记录必须提供给主任授权检验师或ASME 指定的审核组审查.] UG-116(e) &UG-116(e)(1) UG-116 REQUIRED MARKING (e) When radiographic or ultrasonic examination has been performed on a vessel [当射线或超声波探伤已经运用于一台容器上时] in accordance with UW-11, marking shall be applied under the Code Symbol as follows:(1) “RT 1” when all pressure-retaining butt welds, other than Category B and C butt welds associated with nozzles and communicating chambers that neither exceed NPS 10 (DN 250) nor 11⁄8 in. (29 mm) wall thickness [except as required by UHT-57(a)], satisfy the full radiography requirements of UW-11(a) for their full length [在全部长度上满足UW-11(a)全部射线探伤的要求]; full radiography of the above exempted Category B and C butt welds, if performed, may be recorded on the Manufacturer’s Data Report; orNameplate markings as listed in UG-116(e) are currently only applicable if the vessel has been radiographed and UG-116(e)(1) states that the marking “RT1” can only be used if the welded joints have been radiographed over their entire length. UG-116(e)(2), UG-116(e)(3), and UG-116(e)(4) state that the markings “RT2”, “RT3”, and “RT4” must be used on a vessel if the radiographic requirements have been met for their respective markings even when ultrasonic examination has been used for the closure seam per UW-11(a)(7). Code Case 2235-6 allows ultrasonic examination of other welded joints other than the closure seam in lieu of radiographic examination provided specific additional criteria are met. This change will allow the vessels to be stamped with “RT-1”, “RT-2”, and RT-3” when the requirements of radiography have been met without specifically requiring a vessel to be radiographed. The specific reference to UW-51 (Radiographic and Radioscopic Examination of Welded Joints) will be deleted in the event of ultrasonic examination. The requirements in the replies are currently required under Code Case 2235-6(k) and (l).原来的关于铭牌上”RT1”, “RT2”, “RT3”或”RT4”仅适用于焊缝做相应射线探伤的情形. 规范案例2235-6允许对除闭口焊缝以外的其它焊缝做超声波探伤以代替射线探伤,只要特定的附加标准要求得到满足. 此改变允许当射线探伤的要求得到满足而没有特殊要求进行射线探伤时,容器打上”RT1”, “RT2”和”RT3”的标Paragraph 段落号Changes修改内容Explanation解释记.UG-120(a) UG-120 DATA REPORTS(a)A Data Report shall be filled out on Form U-1 or Form U-1A by the Manufacturer and shall be signed by theManufacturer and the Inspector for each pressure vessel marked with the Code U Symbol.(1)Same day production of vessels may be reported on a single Form provided all of the following requirementsare met:(a)vessels must be identical;(b)vessels must be manufactured for stock or for the same user or his designated agent;(c)serial numbers must be in uninterrupted sequence; and the Manufacturer’s written Quality ControlSystem includes procedures to control the development, distribution, and retention of the Data Reports.(2)The number of lines on the Data Report used to describe multiple components (e.g., nozzles, shell courses)may be increased or decreased as necessary to provide space to describe each component. If addition of lines usedto describe multiple components results in the Data Report exceeding one page, space must be provided for theManufacturer and Authorized Inspector to initial and date each of the additional pages. Horizontal spacing forinformation on each line may be altered as necessary. All information must be addressed; however, footnotesdescribed in the remarks block are acceptable, e.g., for multiple cases of “none” or “not applicable.(3)The Manufacturer shall [制造厂必须]:(a)furnish a copy of the Manufacturer's Data Report to the user and, upon request to the Inspector;[提供一份制造厂数据报告给用户, 如要求给授权检验师;](b)submit a copy of the Manufacturer's Data to the appropriate enforcement authority in thejurisdiction in which the vessel is to be installed where required by law;[如法规要求, 递交一份制造厂数据报告给容器安装地的主管当局的有关机构](c)keep a copy of the Manufacturer's Data Report in a safe repository for at least 3 years. In lieu of(b) above, the vessel may be registered and the Data Reports filed with the National Board ofBoiler and Pressure Vessel Inspectors, 1055 Crupper Ave., Columbus, Ohio 43229.[在一个安全的地方保存一份制造厂数据报告至少三年. 作为代替上述(b), 容器可以到美国锅炉和压力容器检验师总部注册,数据报告到该处备案.](4) A Manufacturer’s Certificate of Compliance on Form U-3 shall be completed and signed by the Manufacturerfor each pressure vessel marked with the Code UM Symbol. This Certificate shall be maintained by the Manufacturerfor 5 years and a copy made available upon request. Identical vessels up to 1 day’s production may be recorded on asingle Certificate of Compliance.The changes allow the Manufacturers to be audited more comprehensively.Revise Appendix 10-13 to require the retention of pertinent records by the Manufacturer for at least three years after the signing of the Manufacturers Data Report.该修改允许制造厂能够得到更全面的审查,在取证或换证审查中,相关的记录要提供给AIS或审核组审查.UG-134 UG-134 PRESSURE SETTING AND PERFORMANCE REQUIREMENTS [压力设定和性能要求](f) Pressure relief valves shall be designed and constructed, such that when installed per UG-135, the valves willoperate without chattering and shall not flutter at the flow-rated pressure in a way that either would interfere with themeasurement of capacity or would result in damage(中文翻译略)UG-136(c)(3) UG-136 MINIMUM REQUIREMENTS FOR PRESSURE RELIEF VALVESUG-136(c)(3) A Manufacturer or Assembler may be granted permission to apply the UV Code Symbol to productionpressure relief valves capacity certified in accordance with UG-131 provided the following tests are successfullycompleted. This permission shall expire on the fifth anniversary of the date it is initially granted. The permission maybe extended for 5 year periods if the following tests are successfully repeated within the 6-month period beforeexpiration.Paragraph 段落号Changes修改内容Explanation解释Two sample production pressure relief valves of a size and capacity within the capability of an ASME acceptedlaboratory shall be selected by a representative from an ASME designated organization. Pressure relief valveshaving adjustable blowdown construction shall have the control elements positioned by the Manufacturer orAssembler for a blowdown typical of production methodsOperational and capacity tests shall be conducted in the presence of a representative from an ASME designatedorganization at an ASME accepted laboratory. The pressure relief valve Manufacturer or Assembler shall be notifiedof the time of the test and may have representatives present to witness the test. If a pressure relief valve withadjustable blowdown construction selected from a Manufacturer exhibits a blowdown that exceeds7% of theset pressure or 3 psi (20 kPa), whichever is greater, during operational and capacity tests, then an adjustmentshall be made to meet this performance condition and the operational and capacity tests shall be repeated.This adjustment may be made on the flow test facility.Should any pressure relief valve fail to relieve at or above its certified capacity or should it fail to meetperformance requirements of this Division, the test shall be repeated at the rate of two replacement pressure reliefvalves, selected in accordance with (c)(3)(a) above, for each pressure relief valve that failed.Failure of any of the replacement pressure relief valves to meet the capacity or the performance requirements inUG-134 of this Division shall be cause for revocation within 60 days of the authorization to use the Code Symbol onthat particular type of pressure relief valve. During this period, the Manufacturer or Assembler shall demonstrate thecause of such deficiency and the action taken to guard against future occurrence, and the requirements of (c)(3)above shall apply.…(中文翻译略)UG-136(d)(2), UG-136(d)(3) UG-136 MINIMUM REQUIREMENTS FOR PRESSURE RELIEF VALVESUG-136(d) Production Testing by Manufacturers and AssemblersUG-136(d)(2) Hydrostatic Pressure Tes t(a)The pressure containing parts of each valve shall be hydrostatically tested at a pressure at least 1.5 times the design pressure of the parts. Parts meeting the following criteria shall be exempt from hydrostatic testing:(1)the applied stress under hydrostatic test conditions does not exceed 50% of the allowable stress: and(2)the part is not cast or welded.(b)Testing may be performed pneumatically at a pressure of 1.25 times the design pressure of the part. Pneumatic testing can be hazardous; it is therefore recommended that special precautions be taken when conducting a pneumatic test(c)Testing may be done in the component or assembled condition.(d)When the valve is designed for discharging directly to atmosphere, the valve components downstream of the valve disk are exempt from hydrostatic testing.(e)Valve components downstream of the disk and fully contained within the body are exempt from hydrostatic testing(f)These tests shall be conducted after all machining and welding operations on the parts have been completed(g)There shall be no visible sign of leakageUG-136(d)(3) The secondary pressure zone of each closed bonnet pressure relief valve exceeding NPS 1 (DN 25) inlet size when such pressure relief valves are designed for discharge to a closed system shall be tested with air orParagraph 段落号 Changes 修改内容Explanation解释other gas at a pressure of at least 30 psi (200 kPa). There shall be no visible sign of leakage. (see footnote 62)Footnote 62The User may specify a higher test pressure commensurate with the back pressure anticipated in service.(中文翻译略)UG-137(d)(2)UG-137 MINIMUM REQUIREMENTS FOR RUPTURE DISK DEVICES UG-137(d) Production Testing by Manufacturers UG-137(d)(2) Hydrostatic Pressure Tes t(a)The pressure containing parts of each rupture disk holder shall be hydrostatically tested at a pressure at least 1.5 times the design pressure of the parts. Holders meeting the following criteria shall be exempt from hydrostatic testing:(1)the applied stress under hydrostatic test conditions does not exceed 50% of the allowable stress; and(2)the holder is not cast or welded(b)Testing may be performed pneumatically at a pressure of 1.25 times the design pressure of the part. Pneumatic testing can be hazardous; it is therefore recommended that special precautions be taken when conducting a pneumatic test.(c)Testing may be done in the component or assembled condition.(d)When the outlet of the device is not designed to contain pressure, holder components downstream of the rupture disk are exempt from hydrostatic testing.(e)Holder components downstream of the rupture disk and fully contained within the holder are exempt from hydrostatic testing.(f)These tests shall be conducted after all machining and welding operations on the parts have been completed.(g)There shall be no visible sign of leakage(中文翻译略)Fig. UG-84.1 and Fig.UG-84.1M Under GENERAL NOTES (c), added See UCS-66(g) in the end. 在总的注解(C)下,最后增加”见UCS-66(g)”When a 5F (3C) tolerance was added to paragraphs UCS-66(g) for materials that are required to be impact tested by the material specification, no such tolerance was explicitly added to the Notes in the Figures referenced from those paragraphs. This editorial revision removes this apparent discrepancy and just references the Code paragraphs for the rules.编辑上的修改以消除前后文的明显矛盾.,UW-13(b)(1)UW-13 ATTACHMENT DETAILSUW-13(b)(1) Ellipsoidal, torispherical, and other types of formed heads, shall be attached to the shell with a butt weld or [以对接焊缝, 或] as illustrated in the applicable Fig. UW-13.1 sketches (a), (b), (c), (e), and (k). The construction shown in sketch (f) may also be used for end heads when the thickness of the shell section of the vessel does not exceed 5⁄8 in. (16 mm) [see also (c) below]. Limitations relative to the use of these attachments shall be as given in the sketches and related notes and in Table UW-12. Figure UW-13.1 sketches (g), (h), and (j) are examples of attachment methods which are not permissible.Fig. UW-13.1 sketch (d) illustrates the required details for the attachment of heads to shells with a butt weld. It is composed of two sketches; the right side sketch shows when a tapered transition per UW-13(b)(3) is required and the left side sketch shows when such a transition is not required.。