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1. 发明授权

US3007817A Cold cleaning and cold phosphate coating process 失效
标题翻译：冷清和冷磷酸盐涂层工艺
公开(公告)号：US3007817A
公开(公告)日：1961-11-07
申请号：US69946957
申请日：1957-11-29
申请人： PARKER RUST PROOF CO
发明人： CAVANAGH WALTER R , MAURER JAMES I
IPC分类号： C23C22/13 , C23C22/22 , C23C22/78 , C23C22/83
CPC分类号： C23C22/13 , C23C22/22 , C23C22/78 , C23C22/83

2. 发明授权

US2762733A Composition and method for forming black coatings for metals 失效
标题翻译：用于形成金属黑色涂层的组合物和方法
公开(公告)号：US2762733A
公开(公告)日：1956-09-11
申请号：US34523853
申请日：1953-03-27
申请人： PARKER RUST PROOF CO
发明人： PETER BORGHETTI , CAVANAGH WALTER R
IPC分类号： C23C22/08
CPC分类号： C23C22/08

3. 发明授权

US2884351A Method of cold rolling ferrous strip stock 失效
标题翻译：冷轧铁线条坯料的方法
公开(公告)号：US2884351A
公开(公告)日：1959-04-28
申请号：US56135456
申请日：1956-01-25
申请人： PARKER RUST PROOF CO
发明人： CAVANAGH WALTER R , GIBSON ROBERT C
IPC分类号： B21B1/22 , C23C22/12
CPC分类号： C23C22/12 , B21B1/22
摘要： Ferrous strip is phosphated by treatment with an aqueous acidic zinc phosphate solution containing, by weight 0.05-1.5% zinc 0.12-7.5% calcium, 0.4-2.5% phosphate (as PO4), and an oxidizing agent other than chlorate in an amount sufficient to produce a uniform coating weighing at least 50 mg/sq. foot in not more than 10 seconds, and is then cold rolled. The process is applied to pickled hot-rolled strip. Suitable oxidizing agents are nitrates, nitrites, sulphites, hypochlorites, iodates, periodates, bromates, hydrogen peroxide, t-butyl hydroperoxide, quinones, and organic nitro-compounds such as picric acid, nitroguanidine, nitromethane, nitrourethane, nitraniline, nitrophenol, m - nitrobenzene sulphonate and dinitrobenzene sulphonate. The coatings may be rinsed with a dilute aqueous solution of chromic acid, borax, sodium nitrite or soda ash. The strip is preferably activated after pickling and prior to coating by treating it with an aqueous solution of oxalic acid; tetrasodium pyrophosphate; a mixture of tetrasodium pyrophosphate and a metaphosphate; a dialkyl metal phosphate containing lead, tin or arsenic; or tetrasodium pyrophosphate and/or disodium phosphate containing titanium or zirconium: suitable titanium compounds are the chloride, hydroxide, nitride and titanium potassium oxalate.

4. 发明授权

US2874081A Pretreatment solution for phosphate coating, method of preparing the same and process of treating metal surfaces 失效
标题翻译：磷酸盐涂层预处理方法及其制备方法及金属表面处理方法
公开(公告)号：US2874081A
公开(公告)日：1959-02-17
申请号：US60166056
申请日：1956-08-02
申请人： PARKER RUST PROOF CO
发明人： CAVANAGH WALTER R , MAURER JAMES I
IPC分类号： C23C22/80
CPC分类号： C23C22/80

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