Standard No.:	JB/T 7260-1994
English Name:	Brazed Seam Radiography and Quality Grading for Air Separation Equipment
Chinese Name:	空气分离设备铜焊缝射线照相和质量分级
Chinese Classification:	J76    Gas separation and liquefaction equipment
Professional Classification:	JB    Professional Standard - Machinery
Issued by:	Ministry of Machine Building
Issued on:	1994-7-18
Implemented on:	1995-7-1
Status:	superseded
Superseded by:	JB/T 7260-2023 Air separation plants - Radiographic and quality classification to brazed seams
Superseded on:	2024-2-1
Language:	English
File Format:	PDF
Word Count:	5000 words
Price(USD):	150.00
Delivery:	via email in 1~3 business day

本标准规定了母材厚度不大于20mm，材料为铜及铜基合金，焊接方法为气焊、氩弧焊（也可采用电焊、埋弧焊）的熔化焊对接接头的X射线照相方法及焊缝质量的分级。本标准适用于空气分离设备中铜制容器和铜制管道的对接焊缝。其他母材为铜或铜基合金的熔化焊对接接头也可参照使用。本标准不限制使用γ射线进行透照检验，但在照相技术要求上必须符合本标准的规定。