中华人民共和国住房和城乡建设部公告

前　　言

1　总　　则

2　基本规定

3　制　　作

• 3.1　直管、弯管和渐变管的制作

• 3.2　岔管制作

• 3.3　伸缩节制作

4　安　　装

• 4.1　一般规定

• 4.2　埋管安装

• 4.3　明管安装

5　焊　　接

• 5.1　一般规定

• 5.2　焊接工艺要求

• 5.3　焊接工艺评定

• 5.4　焊接接头检测

• 5.5　缺欠处理

6　焊后消应处理

7　防　腐　蚀

• 7.1　表面预处理

• 7.2　涂料涂装

• 7.3　涂料涂层质量检测

• 7.4　金属喷涂

• 7.5　金属涂层质量检测

• 7.6　牺牲阳极阴极保护系统施工

• 7.7　牺牲阳极阴极保护系统质量检测

8　水压试验

9　包装、运输

10　验　　收

• 10.1　过程验收

• 10.2　完工验收

附录A　钢板性能标准和表面质量标准

• A.1　钢板性能

• A.2　钢板表面质量

附录B　线膨胀量计算和大气露点换算表

附录C　钢管焊接材料选用

附录D　焊接工艺评定力学性能试验

• D.1　对接接头试件制备

• D.2　对接接头力学性能试样的形状和尺寸

• D.3　力学性能试验方法和合格标准

• D.4　角焊缝试件

附录E　预焊接工艺规程和焊接工艺评定报告格式

附录F　不锈钢复合钢板焊接工艺评定

• F.1　一般规定

• F.2　焊接工艺评定规则

附录G　涂料配套性能及涂层厚度

附录H　金属涂层厚度和结合性能的检测

• H.1　金属涂层厚度检测

• H.2　金属涂层结合性能检测

本规范用词说明

引用标准名录

1　General provisions

2　Basic rules

3　Manufacture

• 3.1　Manufacture of straight，elbow and transition of penstock

• 3.2　Manufacture of bifurcation

• 3.3　Manufacture of expansion joints

4　Installation

• 4.1　General requirement

• 4.2　Installation of embedded penstock

• 4.3　Installation of exposed penstock

5　Welding

• 5.1　General requirement

• 5.2　Technology requirement

• 5.3　Welding procedure qualification

• 5.4　Examination of welded joint

• 5.5　Treatment of defects

6　Postweld stress relieving

7　Anticorrosion

• 7.1　Surface pretreatment

• 7.2　Coating

• 7.3　Quality inspection of coating

• 7.4　Mellozing

• 7.5　Quality inspection of metal coating

• 7.6　Construction of sacrifical anode cathodic protection system

• 7.7　Quality inspection of sacrifical anode cathodic protection system

8　Hydrostatic test

9　Packing and transportation

10　Checking and acceptance

• 10.1　Process validation

• 10.2　Final acceptance

Appendix A　Property standard of steel plate and quality standard of surface

Appendix B　Calculation of linear expansion rate and conversion table of atmosphere dew point

Appendix C　Choice of welding material for steel penstock

Appendix D　Mechanical property test in welding procedure qualification

Appendix E　Recommended format of preliminary welding procedures specification and welding procedure qualification report

Appendix F　Welding procedure qualification of compound stainless steel plate

Appendix G　Paint matching performance and coating thickness

Appendix H　Inspection of metal coating thickness and bonding ability

Explaination of wording in this code

List of quoted standards