发明名称 |
METHOD FOR PRODUCING SHEET-IRON ARTICLES OF IMPROVED SURFACE LUBRICITY |
摘要 |
To prevent galling during the drawing and ironing process, black plate is provided with an economical coating for improving surface lubricity. Cold-reduced strip is rinsed with a solution containing soluble salts of manganese and sulfur, e.g. MnSO4; the strip is dried and then heated to above 800 DEG F in a reducing atmosphere, such as HNX. Heating is conducted at a temperature sufficient to reduce the sulfates and provide a surface coating of MnS in which the surface sulfur concentration is in excess of 0.5%. |
申请公布号 |
HU175552(B) |
申请公布日期 |
1980.08.28 |
申请号 |
HU1976UE00076 |
申请日期 |
1976.12.22 |
申请人 |
USS ENGINEERS AND CONSULTANTS INC,US |
发明人 |
MCKIM,HUDSON R.,US;WARNING,CLAIR J.,US |
分类号 |
C10M173/02;B21C9/00;B21C9/02;B21D22/20;B21D22/28;B21D37/18;B21D51/10;C10N10/14;C10N40/24;C10N50/02;C10N50/08;C21D1/74;C23C22/74 |
主分类号 |
C10M173/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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