Acid rain corrosion resisting agent coated to surface of bare steel and preparation method of acid rain corrosion resisting agent

• Main Authors: SONG JIANHONG, LANG FENGJUN, CHENG PENG, PENG HAO, HE RUI, PANG TAO, HUANG XIANQIU, MA YING, WANG HUI, LI ANPING
• Format: Patent
• Language: Chinese; English
• Published: 20.07.2016
• 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

The invention discloses an acid rain corrosion resisting agent coated to the surface of bare steel and a preparation method of the acid rain corrosion resisting agent. The acid rain corrosion resisting agent is prepared from the following materials in weight percent: 1-3% of NaHSO3, 0.5-2% of copper sulfate, 1-3% of sodium tripolyphosphate, 1-3% of sodium molybdate, 0.1-0.5% of phytic acid, 0.1-0.5% of tannic acid and the balance of water. NaHSO3, copper sulfate, sodium tripolyphosphate, sodium molybdate, phytic acid, tannic acid and water are uniformly mixed to prepare the acid rain corrosion resisting agent. The acid rain corrosion resisting agent coated to the surface of bare steel has no strong pungent smell, does not contain chromium and nitrite, and has excellent rusty liquid sagging preventing performance. After the acid rain corrosion resisting agent coated to the surface of bare steel is sprayed to the surface of a plain sample of weathering resistant steel with scale removed, a rust layer has excell