CAJ | 학술논문

借助XRF、XRD、EPMA等测试手段,对FCB法三丝单面埋弧自动焊表面焊剂NSH-55E的焊接冶金反应进行了初步分析.结果表明,熔敷金属中存在少量夹渣物,主要由SiO_2、FeO、CaO及CaSiO_3构成;焊剂和熔渣中存在的主量物质为MgO、SiO_2、CaO、Al_2O_3、CaF_2、TiO_2、Na_2O、MnO、Fe_2O_3,另外因焊接高温化学冶金作用,熔渣中新生成了CaO·MgO·2SiO_2、CaO·Al_2O_3·2SiO_2物相;熔渣中MnO、TiO_2的含量明显高于焊剂,这与焊剂中加入了一定量的锰铁和钛铁作为合金剂和脱氧剂有关.
차조XRF、XRD、EPMA등측시수단,대FCB법삼사단면매호자동한표면한제NSH-55E적한접야금반응진행료초보분석.결과표명,용부금속중존재소량협사물,주요유SiO_2、FeO、CaO급CaSiO_3구성;한제화용사중존재적주량물질위MgO、SiO_2、CaO、Al_2O_3、CaF_2、TiO_2、Na_2O、MnO、Fe_2O_3,령외인한접고온화학야금작용,용사중신생성료CaO·MgO·2SiO_2、CaO·Al_2O_3·2SiO_2물상;용사중MnO、TiO_2적함량명현고우한제,저여한제중가입료일정량적맹철화태철작위합금제화탈양제유관.
The welding metallurgy reaction of surface flux NSH-55E was investigated by the methods of XRF, XRD, EPMA in the process of single-sided submerged-arc welding with triple wire in FCB method. The results show that there is a little of slag in the deposited metal, which is composed of SiO_2, FeO, CaO and CaSiO_3. The constitution of flux and slag consists of MgO, SiO_2, CaO, Al_2O_3, CaF_2, TiO_2, Na_2O, MnO and Fe_2O_3. In addition, due to the chemical metallurgy action at high temperature, the new phase CaO·MgO·2SiO_2 and CaO-Al_2O_3·2SiO_2 created, the content of MnO and TiO_2 in slag is higher than that of flux obviously. This is related to some Mn, Fe and Ti, which are used as alloying agent and deoxidizing.