锅炉安装维修中如何控制焊接质量 --中国期刊网 关键词】锅炉；安装维修施工；焊接；质量控制 [gap=340]Key words】Boiler; Maintain construction; Weld; Quality control
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【优点】：基础施工费用低安装，维修方便，通风良好，维护简单，无积水。
Advantages: low cost of foundation construction installation, easy maintenance, good ventilation, simple maintenance, no water.
文章就几种应用热胀冷缩法进行安装和拆卸的实例进行分析，叙述其技术要点，找出其理论估算公式，为在施工前验证工程可行性提供了理论依据，有利于提高维修效率。
It narrates the main points of technique, finding out the theoretical estimate formula, providing the theoretical basis for the feasibility of the engineering test and promoting the repair efficiency.
安装时仅用螺栓压接即可，不用水泥和胶水，施工快捷，安全环保，便于拆卸维修及重复使用。
During installing, press and integrate by bolts and screws, without cement and glue, easy to construct, safety and environmentally friend. It's convenient to disassemble, repair and recycle use.
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