| SHU Ming-yong,YIN Hai-ying,LIU Guang-hui,HU Rui,WU Bo-tao.Preparation and Properties of V-Ti Enamel by Ilmenite Tailings[J],45(10):13-19 |
| Preparation and Properties of V-Ti Enamel by Ilmenite Tailings |
| Received:March 31, 2016 Revised:October 20, 2016 |
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| DOI：10.16490/j.cnki.issn.1001-3660.2016.10.003 |
| KeyWord:ilmenite tailings enamel adherence acid resistance |
| Author | Institution |
| SHU Ming-yong |
1.School of Biological and Chemical Engineering, Panzhihua University, Panzhihua , China;2.Comprehensive Utilization Key Laboratory of Metallurgical Assistance of Mineral Resources of Panzhihua City, Panzhihua , China |
| YIN Hai-ying |
School of Biological and Chemical Engineering, Panzhihua University, Panzhihua , China |
| LIU Guang-hui |
Comprehensive Utilization Key Laboratory of Metallurgical Assistance of Mineral Resources of Panzhihua City, Panzhihua , China |
| HU Rui |
School of Biological and Chemical Engineering, Panzhihua University, Panzhihua , China |
| WU Bo-tao |
School of Biological and Chemical Engineering, Panzhihua University, Panzhihua , China |
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| Abstract: |
| The work aims to research surface morphology, adherence of V-Ti enamel prepared with Panzhihua ilmenite tailings as well as its acid corrosion resistance in 30% H2SO4 solution. The ilmenite tailings were added to enamel raw materials after calcination or being made into V2O5 assistant, then fused and quenched to prepare enamel glaze. Then glaze pulping was coated on surface of Q235 carbon steel which was subject to decarburization and heat treatment so as to prepare V-Ti enamel coating in 850 ℃ enameling burning. And surface morphology, adherence and acid corrosion resistance of its coating were studied by means of XRD, SEM and EDS. If mass fraction of the calcined titanium tailings directly added to enamel was higher than 8.4%, surface of the prepared enamel coating was subject to evident bubbles, rough glaze surface, low glossiness and insuf ficient acid resistance. However, when the mass fraction of V2O5 additive added to the enamel glaze was 3.5%~ 5%, the surface morphology, adherence and acid corrosion resistance of the prepared enamel coating were improved significantly. The making of ilmenite tailings into V2O5 assistant and addition of enamel coating interface prepared in the glaze may form Fe-V transition layer easily, contributing to improving the adherence of enamel. Meanwhile, the SiO2 protective film forms on the enamel surface in the acid solution to prevent acid corrosion and improve its corrosion resistance. |
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