4　零部件的检查和验收

• 4.1　零部件质量证明书的检查

• 4.2　球壳板和试板的检查

• 4.3　支柱的检查

• 4.4　组焊件的检查

• 4.5　零部件的油漆、包装和运输检查

5　现场组装

• 5.1　基础检查验收

• 5.2　球形储罐组装

• 5.3　零部件安装

6　焊接

• 6.1　一般规定

• 6.2　焊接工艺评定及焊接作业指导书

• 6.3　焊接材料的选用与现场管理

• 6.4　焊接施工

• 6.5　修补

• 6.6　球形储罐焊后尺寸检查

7　焊缝检查

• 7.1　一般规定

• 7.2　射线检测和超声检测

• 7.3　表面无损检测

8　焊后整体热处理

• 8.1　一般规定

• 8.2　热处理工艺

• 8.3　保温要求

• 8.4　测温系统

• 8.5　柱脚处理

9　产品焊接试件

• 9.1　产品焊接试件的制备要求

• 9.2　试样的制备和试验

10　耐压试验和泄漏试验

• 10.1　耐压试验

• 10.2　泄漏试验

附录A　低温球形储罐

• A.1　一般规定

• A.2　球壳板检查、验收与低温球形储罐的组装

• A.3　焊接

• A.4　焊后整体热处理

• A.5　产品焊接试件

• A.6　焊缝检查及耐压试验

4 Inspection and acceptance of components and parts

• 4.1 Inspection of components quality certificate

• 4.2 Inspection of shells and test plates

• 4.3 Inspection of columns

• 4.4 Inspection of welded assemblies

• 4.5 Painting，package and transportation inspection of components and parts

5 Site assembly

• 5.1 Inspection and acceptance of foundation

• 5.2 Spherical tank assembly

• 5.3 Installation of components and parts

6 Welding

• 6.1 General requirement

• 6.2 Welding procedure qualification and welding procedure specification

• 6.3 Selection and site management of welding consumables

• 6.4 Welding construction

• 6.5 Repairment

• 6.6 Dimension inspection of spherical tank after welding

7 Inspection of welding seam

• 7.1 General requirement

• 7.2 Radiographic examination and ultrasonic examination

• 7.3 Surface nondestructive testing

8 Post welding integral heat treatment

• 8.1 General requirement

• 8.2 Heat treatment process

• 8.3 Requirement of heat preservation

• 8.4 Temperature measurement system

• 8.5 Column pedestal treatment

9 Products welding test-piece

• 9.1 Preparation requirement of products welding test-piece

• 9.2 Preparation of specimen and testing

10 Pressure test and leak test

• 10.1 Pressure test

• 10.2 Leak test

Appendix A Low-Temperature spherical tank