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95 条记录 (耗时 0.012 秒)

    Process for chromating surfaces of zinc, cadmium and alloys thereof
    41.
    发明授权
    Process for chromating surfaces of zinc, cadmium and alloys thereof 失效
    锌，镉及其合金的铬化表面的工艺

    公开(公告)号：US5368655A

    公开(公告)日：1994-11-29

    申请号：US965342

    申请日：1992-10-23

    申请人： Klaus P. Klos

    发明人： Klaus P. Klos

    IPC分类号： C23C22/46 ,  C23C22/26

    CPC分类号： C23C22/46 ,  C23C2222/10

    摘要： There is described a process for chromating an article formed of a metal selected from the group consisting of zinc, cadmium and alloys thereof, which includes immersing the article in a water solution of a soluble chromic oxalate complex at a pH of from 1.2 to 3.0.

    摘要翻译： 描述了由选自锌，镉及其合金的金属形成的制品的铬化方法，其包括将制品浸入可溶性草酸草酸盐络合物的水溶液中，pH为1.2至3.0。

    Method for anticorrosive treatment of galvanized steel
    42.
    发明授权
    Method for anticorrosive treatment of galvanized steel 失效
    镀锌钢板防腐处理方法

    公开(公告)号：US4385940A

    公开(公告)日：1983-05-31

    申请号：US224480

    申请日：1981-01-12

    申请人： Shigeki Kirihara ,  Tsutomu Ohshima

    发明人： Shigeki Kirihara ,  Tsutomu Ohshima

    IPC分类号： C23C22/40 ,  C23C22/42 ,  C23C22/46 ,  C23F7/08

    CPC分类号： C23C22/46 ,  C23C22/40 ,  C23C22/42

    摘要： An anticorrosive treatment for preventing white rust on galvanized steels, comprises applying to the surface of a galvanized steel sheet an acidic solution containing molybdic acid or a molybdate in a concentration of 10-200 g/l calculated as molybdenum and adjusted to a pH value of 1-6 by addition of an organic or inorganic acid.

    摘要翻译： 一种用于防止镀锌钢板白锈的防腐蚀处理方法，其特征在于，在镀锌钢板的表面上，以钼计算浓度为10〜200g / l的钼酸或钼酸盐的酸性溶液，调整为pH值 1-6，通过加入有机或无机酸。

    Forming oxalate conversion coatings on iron or steel
    43.
    发明授权
    Forming oxalate conversion coatings on iron or steel 失效
    在铁或钢上形成氧化铝转化涂层

    公开(公告)号：US3806375A

    公开(公告)日：1974-04-23

    申请号：US20402171

    申请日：1971-12-02

    申请人： CANADIAN PATENTS DEV

    发明人： MC LEOD W ,  HOEY G

    IPC分类号： C23C22/46 ,  C23F7/20

    CPC分类号： C23C22/46

    摘要： THE INVENTION RELATES TO AN ACCLERATOR AND GRAIN REFINER IN THE OXALATE CONVERSION COATING PROCESS FOR METALS, SUCH AS STEEL. THE ACCELERATOR COMPRISES THE REACTION PRODUCT OF HEXAMINE AND SULFUR DIOXIDE. IT IS FORMED BY DISSOLVING HEXAMINE IN A SULFUROUS ACID SOLUTION AND ALLOWING THE SOLUTION TO STAND FOR A PERIOD SUFFICIENT TO ALLOW FORMATION OF THE REACTION PRODUCT. WHEN USED IN AN OXALATE CONVERSION COATING BATH, METAL OBJECTS COATED THEREIN HAVE A FIRMLY ADHERENT COATING WHICH IS RESISTANT TO CORROSIVE ACTION, SUCH AS MIGHT OCCUR IN SULFUR DIOXIDE ATMOSPHERES. OXALATE COATINGS, PRODUCED AS DESCRIBED ALSO SERVE AS LUBRICANTS TO PREVENT SCRATCHING OF METAL SURFACES IN METAL FORMING PROCESSES.

    Coatings for steel
    44.
    发明授权
    Coatings for steel 失效
    钢铁涂料

    公开(公告)号：US3649371A

    公开(公告)日：1972-03-14

    申请号：US3649371D

    申请日：1969-08-08

    申请人： PENNWALT CORP

    发明人： TONGYAI SINGKATA

    IPC分类号： C23C22/46 ,  C23F7/20

    CPC分类号： C23C22/46

    摘要： A FERROUS OXALATE COATING ON FERROUS METAL RESULTS FROM CONTACTING THE METAL WITH AN AQUEOUS SOLUTION OF FERROUS OXALATE, FERRIC ION, FLUORIDE ION, OXALIC ACID AT A PH OF 0-2.5 AND A TEMPERATURE OF 130* TO ABOUT 190*F. A MIXTURE FOR PREPARING AND REPLENISHING THE BATH CONSISTS OF OXALIC ACID, FERRIC SULFATE AND ALKALI METAL BIFLUORIDES.