METAL SUPERVISION AFTER PUTTING HIGH-TEMPERATURE FASTENERS INTO SERVICE IN POWER PLANTS

HUANG Min Guangzhou Power Plant Co Ltd

doi:10.19666/j.rlfd.2008.09.004

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METAL SUPERVISION AFTER PUTTING HIGH-TEMPERATURE FASTENERS INTO SERVICE IN POWER PLANTS

更新时间：2025-09-28

- METAL SUPERVISION AFTER PUTTING HIGH-TEMPERATURE FASTENERS INTO SERVICE IN POWER PLANTS
- Thermal Power Generation Issue 9, Pages: 12-14(2008)
- 作者机构：
  
  广州发电厂有限公司
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.2008.09.004
  CLC： TH131.3
- Published：2008
- 稿件说明：
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HUANG Min Guangzhou Power Plant Co Ltd. METAL SUPERVISION AFTER PUTTING HIGH-TEMPERATURE FASTENERS INTO SERVICE IN POWER PLANTS[J]. Thermal power generation, 2008, (9): 12-14.
DOI：

HUANG Min Guangzhou Power Plant Co Ltd. METAL SUPERVISION AFTER PUTTING HIGH-TEMPERATURE FASTENERS INTO SERVICE IN POWER PLANTS[J]. Thermal power generation, 2008, (9): 12-14. DOI： 10.19666/j.rlfd.2008.09.004.

摘要

DL438—2000及DL/T439—2006均对高温紧固件投运后的监督检验作出了规定

分析两者发现

前者的规定使监督检验人员把硬度作为判断螺栓损伤的唯一指标

而后者坚持在螺栓监督过程中采用多项指标进行综合评价

因此更具有科学性和可操作性。对此

建议相关部门尽量统一这两种监督检验方式对螺栓的检验要求。

Abstract

In standards DL 438-2000 and DL/T 439-2006

the supervision and inspection of high-temperature fasteners after putting them into service all had been stipulated.It is discovered from analysis of both standards that the stipulation in DL 438-2000 is easy to make the supervisor or inspector to regard the hardness as only one index for judging the damage of bolts

but in DL/T 439-2006

it is insisted to use several indices in supervisory process of bolts for comprehensive evaluation

therefore

being more scientific and practicable.For this

it is recommented that the related departments have to unify the requirements for inspecting bolts as far as possible in the two above-mentioned supervision and inspection modes.

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