HOT-STAMP-MOLDED ARTICLE

• Main Authors: AKIBA Kojiro, NONAKA Toshiki, SENGOKU Akihiro
• Format: Patent
• Language: English; French; Japanese
• Published: 30.09.2021
• 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; MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; METALLURGY; PERFORMING OPERATIONS; PUNCHING METAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; TRANSPORTING; WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL

The hot-stamp-molded article is provided with a base material and a Zn-based plating layer which serves as an upper layer for the base material, is arranged so as to contact with the base material and contains Zn, in which a Fe-Zn solid solution is provided on the base material side of the Zn-based plating layer and, in crystal grains of the Fe-Zn solid solution located adjacent to the interface between the base material and the plating layer, there are two twin crystal per 10 of the crystal grains. L'article moulé par estampage à chaud est pourvu d'un matériau de base et d'une couche de placage à base de Zn qui sert de couche supérieure pour le matériau de base, est agencé de manière à entrer en contact avec le matériau de base et contient du Zn, une solution solide de Fe-Zn étant disposée sur le côté du matériau de base de la couche de placage à base de Zn et, dans des grains cristallins de la solution solide de Fe-Zn située à proximité de l'interface entre le matériau de base et la couche de placage, il y a deux cristaux jumelés pour 10 grains cristallins. このホットスタンプ成形体は、母材と、前記母材の上層として、前記母材と接して設けられ、Ｚｎを含有するＺｎ系めっき層と、を備え、前記Ｚｎ系めっき層の母材側がＦｅ－Ｚｎ固溶体であり、前記母材と前記めっき層との界面に隣接するＦｅ－Ｚｎ固溶体の結晶粒１０個の粒内に双晶が２個以上存在する。