C - Chemistry – Metallurgy – 23 – C
Patent
C - Chemistry, Metallurgy
23
C
C23C 2/06 (2006.01) C23C 2/26 (2006.01) C23C 2/28 (2006.01) G01N 27/42 (2006.01) G01N 33/20 (2006.01)
Patent
CA 2411879
An alloy galvanized steel plate produced by forming a hot dip galvanization layer on the surface of a steel plate and then alloying it. The steel plate has a potential of -850 mV or below when it is immersed into a zinc sulfate- sodium chloride electrolyte or the quantity of electricity flowing at the time of constant potential electrolysis in a zinc sulfate-sodium chloride electrolyte at a potential of -940 mV to -920 mV is 0.5 C/cm2 or less. The steel sheet exhibits excellent machinability, especially slidability.
Plaque d'acier galvanisé par alliage, produite par formation d'une couche de galvanisation par immersion à chaud sur la surface d'une plaque d'acier, puis par formation d'un alliage. La plaque d'acier possède un potentiel de 850mV ou moins lorsqu'elle est immergée dans un électrolyte sulfate de zinc / chlorure de sodium ou bien la quantité d'électricité passant au moment de l'électrolyse à potentiel constant dans un électrolyte sulfate de zinc / chlorure de sodium à un potentiel de 940mV à 920mV est de 0,5 C/cm?2¿ ou moins. Ladite plaque d'acier possède d'excellentes propriétés d'usinage, en particulier de glissement.
Fujimoto Kyoko
Satoh Susumu
Shimura Makoto
Tobiyama Yoichi
Jfe Steel Corporation
Kawasaki Steel Corporation
Moffat & Co.
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