文档介绍：Post-Weld Heat Treatment Procedure
焊后热处理工艺规程
Prepared By编制: Date日期:
Reviewed By审核: Date日期:
Approved By批准: Date日期:
General
概述
This procedure is applied for post-weld heat treatment of power boilers, external piping and pressure vessels constructed in accordance with ASME Code Section I and Section VIII .
本规程适用于按照ASME规范第Ⅰ卷、第Ⅷ卷第一分册制造的锅炉、外部管道与压力容器的焊后热处理。
Equipment
设备
The furnace used for post-weld heat treatment shall have sufficient capacity for the vessel to be treated. Necessary temperature control equipment shall be available and are ensured to be in good condition during the heat treatment so as to assure that heat treatment temperature can meet the relevant requirements.
应使用足够能力的热处理炉对容器进行焊后热处理。热处理炉应装备有必要的温度控制设施且保证热处理时处于良好工作状态,以保证热处理温度满足相关要求。
The recorders and thermocouples shall be periodically calibrated once a year according to requirements of Section 10 of QC Manual.
记录仪与热电偶应按QC手册第10章的要求每年做一次校验。
Instruction
说明
This procedure shall be supplemented by an instruction for a particular post-weld heat treatment. The instruction shall be provided by the Heat Treatment Engineer.
本规程应有详细的焊后热处理工艺作为补充。热处理工艺由热处理工程师提供。
The instruction for the post-weld heat treatment shall include the following as a minimum:
焊后热处理工艺应至少包含以下内容:
Type of heat treatment;
热处理方法;
Holding temperature and time;
保温温度与保温时间;
Heating and cooling rate;
加热速度与冷却速度;
Thermocouple locati