Proposals are also put forward for replacing the classification of welding flux according to the degree of basicity by other evaluation scales.
研究了描述埋弧焊焊剂的冶金性能指标———氧活度和氧含量的测定,通过对焊剂渣系化学成分的分析,指出用Boniszewski公式计算出的碱度不能准确地描述氧活度和氧含量这两个指标。
Preparatory Discuss about the Action Mechanism of fluxes in TIG Welding for ZA Alloy;
焊剂在ZA合金TIG焊接过程中作用机理初探
Welding testing experiment showed that when welding T91 and TP304, the welding flux can be used to take the place of argon backing gas with getting qualified welding joint in microstructure, chemical composition, mechanical properties and back protection.
简要介绍了一种防止T91／TP304钢管焊缝背面氧化的新技术,焊接工艺评定结果表明,使用背面防氧化焊剂代替氩气进行背面保护焊接T91和TP304钢管,可以得到金相、化学成分、机械性能及背面保护合格的焊接接头。
It analyzes main problem exiting in flux recovery fitting for production of SSAW pipe and new type of flux reclaimed fitting is designed which possesses outstand sealability and can be operated continuously.
针对埋弧焊钢管生产中焊剂回收装置存在的问题进行分析与研究,设计了一种密封好、连续工作性强的焊剂回收装置。
Experimental study on agglomerated flux with CaCO_3-CaF_2-SiO_2 slag system;
对CaCO_3-CaF_2-SiO_2渣系烧结焊剂的试验研究
Application of MnO for submerged arc agglomerated flux;
埋弧焊烧结焊剂中MnO应用的试验分析
Experimental research of agglomerated flux with ejected course of MgO-CaF_2-Al_2O_3-MnO;
对MgO-CaF_2-Al_2O_3-MnO渣系烧结焊剂的试验研究
Subsistent patent documents and studies of soldering fluxes in different countries and regions were compared.
概述了世界电子产品的无铅化趋势及相关立法,比较了世界各国及地区的助焊剂专利文献,分析了助焊剂的研究进展状况,着重论述了微电子组装中无铅钎料专用助焊剂的特点和要求,并提出了开发和研究无铅钎料专用环保型助焊剂需要解决的一些关键问题。
The no-clean soldering fluxes used presently contained a high concentration of organic solvents which would generally turn into volatile organic compounds (VOC).
针对现有的免清洗助焊剂中对环境和人类健康有害的挥发性有机化合物VOC,研制出一种以水作溶剂不含VOC的水基免清洗助焊剂,使用Sn-3。
The RC-18A type soldering flux is a new type of soldering chemical industry product which is prepared for the needs of the electronics, instrument and electrical equipment industries etc.
RC—18A型助焊剂是为满足电子、仪表、电器等行业生产的需要而研制的一种新型助焊化工产品,系氯化物混合型水溶液,具有表面再处理及充当优良钎剂的双重作用,主要适用于电子、仪表、电器等行业零件的软钎焊。