发明名称 LOW PRESSURE CARBONITRIDING METHOD FOR METAL ALLOY PARTS
摘要 <p>The invention concerns a method for carbonitriding metal alloy parts which consists in treating said parts with a fuel mixture consisting of ethylene and hydrogen and with a nitriding gas consisting of ammonia, under pressure less than 100 hPa and at a temperature of about 750 to 1050 °C. The invention is particularly advantageous for treating passivable and stainless steel since it enables to attain very high surface enrichment in nitrogen.</p>
申请公布号 WO1999055928(A1) 申请公布日期 1999.11.04
申请号 FR1999000998 申请日期 1999.04.27
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