TWI808469B

• Main Authors: SASAKI, HIROKAZU, ISSAKA, HAMEED, OYA, SHINOBU, NAKAMURA, NAOFUMI
• Format: Patent
• Language: Chinese
• Published: 11.07.2023
• 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

A processed product which uses, as a base material, a plated steel sheet that has a plating layer in the surface, while having a cut end that extends in the sheet thickness direction of the processed product. The cut end sequentially has, in the sheet thickness direction of the cut end, a sag, a shear surface and a rupture surface, or alternatively, a sag and a shear surface; the ratio of the plating component remaining length L, where the shear surface is covered by the plating layer in the surface, to the sheet thickness t1 of the cut end of the processed product, namely L/t1 is 0.70 or more; and the length Z of the sag in the sheet thickness direction of the cut end is more than 0 times but less than 0.10 times the sheet thickness t1 of the cut end of the processed product.