High-strength steel and hard aluminum alloy combined body spraying phosphorization technology

• Main Authors: YANG CHENG, PANG LIUYANG, BAI XINYAN, YANG YOUCAI
• Format: Patent
• Language: Chinese; English
• Published: 17.01.2020
• Subjects: 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; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS; METALLURGY; METALLURGY OF IRON; MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; TREATMENT OF ALLOYS OR NON-FERROUS METALS

The invention discloses a high-strength steel and hard aluminum alloy combined body spraying phosphorization technology. According to a treated high-strength steel and hard aluminum alloy combined body, according to the technology process, spraying phosphorization treatment is conducted in a spraying phosphorization bath solution prepared according to the proportion, and spraying phosphorization liquid components include 4000 PPm-6000 PPm of Zn<2+>, 500 PPm-800 PPm of Mn<2+>, 400 PPm-600 PPm of Fe<2+>, 300 PPm-500 PPm of MoO4<2->, 9000 PPm-15000 PPm of NO3<->, 12000 PPm-18000 PPm of PO4<3->, 400 PPm-700 PPm of SO4<2->, 900 PPm-1500 PPm of a composite accelerator, 300 PPm-600 PPm of a composite accelerant and the balance water, wherein PPm is the one in a million and is a mass ratio, the color of an obtained high-strength steel film layer is light gray to dark gray, and the hard aluminum alloy phosphorization film layer is light gray. The high-strength steel and hard aluminum alloy combined body spraying phosp