Status and development of standard system for chemical analysis of welding flux in China
LIU Pan1, 2, CHANG Guo-liang1, ZHANG Xin-yao1, 3, ZHU Zhen-biao1, 4 HE Peng-fei1, LI Jing-bin1
1. Luoyang Ship Material Research Institute, Luoyang 471023, China; 2. National New Material Production and Application Demonstvation Platform (Advanced Marine Engineering and High-tech Ship Materials), Luoyang 471023, China; 3. Henan Key Laboratory of Technology and Application of Structural Materials for Ship and Marine Equipment, Luoyang 471023, China; 4. Luoyang Sunrui Special Equipment Co., Ltd., Luoyang 471000, China
Abstract：Welding flux, such as fused flux, agglomerated flux, bonded flux, electrode coating and flux-cored powder, play an important role in the fusion welding of steels and nickel-based alloys. They have been widely used in the engineering fields, including shipbuilding, nuclear power, energy, metallurgy, chemical industry, and machinery industry. A systematic review of status and development of standard system for chemical analysis of welding flux in China, especially the application status of standard methods for chemical analysis, was summarized based on the inspection requirements of sulfur, phosphorus and fluorine in the welding flux, from the perspective of standard sources (national standards, industry standards, local standards, group standards, enterprise standards, society recommended methods), testing technology (preparation and sampling, wet analysis, solid spectral analysis, combustion method, pyrolysis method, moisture test) and reference materials. At last, some suggestions for the future development were proposed to improve the standardization system for chemical analysis of welding flux, and change the hysteresis in applicable targets, testing item and scope as well as testing efficiency.
刘攀, 常国梁, 张欣耀, 朱珍彪, 何鹏飞, 李景滨. 我国焊接药剂化学分析标准体系现状与发展[J]. 冶金分析, 2020, 40(11): 8-16.
LIU Pan, CHANG Guo-liang, ZHANG Xin-yao, ZHU Zhen-biao HE Peng-fei, LI Jing-bin. Status and development of standard system for chemical analysis of welding flux in China. , 2020, 40(11): 8-16.
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