公开(公告)号：US20190032239A1

公开(公告)日：2019-01-31

申请号：US16077169

申请日：2017-02-14

Applicant: JFE STEEL CORPORATION ,  TOCALO CO., LTD.

Inventor： Yuya BABA ,  Junichi TAKEUCHI ,  Yoshifumi KOBAYASHI

IPC: C25D17/10 ,  C22C29/08 ,  C23C4/10 ,  C25D5/04

Abstract: Disclosed is a cermet powder that enables preparation of a cermet coating having both high wear resistance and high corrosion resistance against a strong acid having a pH of less than 1. The disclosed cermet powder contains tungsten carbide particles in an amount of 40 mass % or more; molybdenum carbide particles in an amount of 10 mass % to 40 mass %; and Ni or a Ni alloy as a matrix metal, wherein the cermet powder further contains chromium, either as a carbide or a metal or alloy element contained in the matrix metal, in an amount of 8 mass % or more.

公开(公告)号：US20200149179A1

公开(公告)日：2020-05-14

申请号：US16619234

申请日：2018-06-05

Applicant: JFE STEEL CORPORATION

Inventor： Yusuke NAKAGAWA ,  Takeshi SUZUKI ,  Mikito SUTO ,  Katsumi KOJIMA ,  Yuya BABA ,  Hanyou SOU ,  Yoichiro YAMANAKA ,  Shunsuke TOKUI

IPC: C25D11/38 ,  C25D7/00 ,  C23C28/00 ,  C25D5/18 ,  C25D5/16

Abstract: A steel sheet for cans which exhibits excellent weldability; and a production method therefore include the surface of a steel sheet in order from the steel sheet side, a chromium metal layer and a hydrous chromium oxide layer. The deposited amount of the chromium metal layer is 50-200 mg/m2. The deposited amount of the hydrous chromium oxide layer in terms of chromium is 3-30 mg/m2. The chromium metal layer includes: a base part having a thickness of 7.0 nm or higher; and granular protrusions which are on the base part, have a maximum grain size of 200 nm or lower, and have a number density per unit area of at least 30 per μm2.