Chromium-free and phosphorus-free conversion liquid as well as preparation method and application thereof
The invention discloses a chromium-free and phosphorus-free conversion solution as well as a preparation method and application thereof. The chromium-free and phosphorus-free conversion liquid provided by the invention is prepared from the following raw materials: molybdate, permanganate, metavanada...
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| creator | LIAO ZHONGMIAO LI KANG DUAN YONGXU LUO YOUBIN XU YASHU GONG YULIN CHEN DAMING LI YUEMING HU YIWEN GUO SINAN ZHU WEN YI AIHUA CHEN KEN |
| description | The invention discloses a chromium-free and phosphorus-free conversion solution as well as a preparation method and application thereof. The chromium-free and phosphorus-free conversion liquid provided by the invention is prepared from the following raw materials: molybdate, permanganate, metavanadate and a film-forming additive. According to the chromium-free and phosphorus-free conversion liquid provided by the invention, through the synergistic effect of the preparation raw materials, on one hand, the use of a high-toxicity chromium-containing compound and a heavy-pollution phosphorus-containing compound can be avoided, and on the other hand, the chromium-free and phosphorus-free conversion liquid can be used under a near-neutral condition to form a good conversion film; the economical efficiency, the environmental protection property and the operation safety of the chromium-free and phosphorus-free conversion liquid are integrally improved. The invention also provides a preparation method and application |
| format | Patent |
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The chromium-free and phosphorus-free conversion liquid provided by the invention is prepared from the following raw materials: molybdate, permanganate, metavanadate and a film-forming additive. According to the chromium-free and phosphorus-free conversion liquid provided by the invention, through the synergistic effect of the preparation raw materials, on one hand, the use of a high-toxicity chromium-containing compound and a heavy-pollution phosphorus-containing compound can be avoided, and on the other hand, the chromium-free and phosphorus-free conversion liquid can be used under a near-neutral condition to form a good conversion film; the economical efficiency, the environmental protection property and the operation safety of the chromium-free and phosphorus-free conversion liquid are integrally improved. 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The chromium-free and phosphorus-free conversion liquid provided by the invention is prepared from the following raw materials: molybdate, permanganate, metavanadate and a film-forming additive. According to the chromium-free and phosphorus-free conversion liquid provided by the invention, through the synergistic effect of the preparation raw materials, on one hand, the use of a high-toxicity chromium-containing compound and a heavy-pollution phosphorus-containing compound can be avoided, and on the other hand, the chromium-free and phosphorus-free conversion liquid can be used under a near-neutral condition to form a good conversion film; the economical efficiency, the environmental protection property and the operation safety of the chromium-free and phosphorus-free conversion liquid are integrally improved. The invention also provides a preparation method and application</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION |
| title | Chromium-free and phosphorus-free conversion liquid as well as preparation method and application thereof |
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