Aluminum-silicon plated steel plate with good wear resistance and processability and manufacturing method of aluminum-silicon plated steel plate

• Main Authors: WU XIAOFENG, WANG TENG, WU DEDONG, YU LIN, LI WEIGANG
• Format: Patent
• Language: Chinese; English
• Published: 31.01.2023
• Subjects: ALLOYS; CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS; 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; FERROUS OR NON-FERROUS ALLOYS; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; METALLURGY; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; TREATMENT OF ALLOYS OR NON-FERROUS METALS

The invention provides an aluminum-silicon plated steel plate with good wear resistance and processability and a manufacturing method thereof, the aluminum-silicon plated steel plate comprises a substrate, a plating layer, a first passivation layer and a second passivation layer, and the plating layer comprises 2-6% of Si, 1-3% of Mg, 0.5-0.8% of Mn and the balance of Al. The first passivation layer contains the following components: hexafluorozirconate, metavanadate, organic phosphonic acid, hydrofluoric acid and phosphoric acid. And the second passivation layer contains the following components: waterborne polyurethane, acrylate, polyethylene wax and an organic additive. Compared with the prior art, reasonable component design of the plating layer, the first passivation layer and the second passivation layer is carried out on the steel plate, and control over the hot dipping technology, the after-plating cooling technology, the finishing technology, the coating technology and the like is matched, so that th