FIELD: process engineering.
SUBSTANCE: invention relates to production of steel retaining plate for fuel cell that features rust and contact resistance at both initial stage and after effects of high temperature and/or moisture content in fuel element for a long time. Proposed method comprises preparation of stainless steel sheet as a metal retaining plate matrix. Intermittent cover film is formed at stainless steel sheet surface. Note here that said cover film contains at least one substance selected from the following matters, i.e. gold (Au), platinum (Pt), ruthenium (Ru), iridium (Ir), ruthenium oxide (RuO2) and iridium oxide (IrO2). Said sheet with intermittent film is thermally treated to form oxide film on the part of stainless steel sheet whereat cover film is not formed.
EFFECT: metallic retaining plate for fuel cell.
11 cl, 12 dwg, 1 tbl, 8 ex
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