大型钛-钢换热器复合板焊接技术和质量评价
Producing Technique and Quality Evaluation of Titanium Clad Steel Plate for Large-scale Heat Exchanger
宋品玲1， 赵 惠2， 黄张洪1
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作者单位：1. 西部金属材料股份有限公司，陕西 西安 710016； 2. 西安天力金属复合材料有限公司， 陕西 西安 710065
中文关键字：换热器； 钛-钢复合板； 焊接接头
英文关键字：heat exchanger; titanium-steel clad plates; welding joint
中文摘要：介绍了大型换热器钛-钢复合板焊接接头的形式、焊接工艺、热处理工艺及质量评定方法。采用渗透探伤、氦气检漏、热气循环、超声波检测等方法对焊缝及设备的整体性能进行评价，可以准确地对钛焊缝的质量进行检测和控制。同时，对设备进行热气循环实验以模拟实际使用工况，达到检测设备耐热性能的目的。
英文摘要：The welding patterns, welding process and heat treatment of titanium-steel clad plates for large-scale heat exchanger were investigated. Liquid penetrating test (PT), checking leaks with inhaling method， hot-gas cycle and ultrasonic test were employed to evaluate the quality of the equipments. Using above methods, the quality of the welding is supervised and controlled. Moreover, hot-gas cycle test is carried out to simulate the uses in the work field, which can be used to evaluate the heat resistance of the large-scale equipment.