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公开(公告)号：US4178194A
公开(公告)日：1979-12-11
申请号：US970109
申请日：1978-12-18
申请人： Nazzareno Azzerri , Roberto Bruno
发明人： Nazzareno Azzerri , Roberto Bruno
CPC分类号： C25F1/06
摘要： The electrolytic pickling of silicon electrical steel sheet that follows hot rolling, is improved by limiting the potential imposed on the steel, during the anodic phase thereof, to less than +1 V with respect to the standard hydrogen electrode, preferably less than +0.8 V. The avoidance of electrolysis of the aqueous medium shortens the treatment time, reduces energy consumption, avoids over-pickling, facilitates subsequent rolling, reduces the subsequent rolling load, improves adherence of the subsequently applied glass film, and renders more uniform the magnetic characteristics of the steel.
摘要翻译： 热轧后的硅电工钢板的电解酸洗通过将在阳极相位期间施加在钢上的电势限制在相对于标准氢电极小于+1V，优选小于+ 0.8V而提高 避免电解水介质缩短了处理时间，降低了能源消耗，避免过酸洗，有利于随后的轧制，减少随后的轧制负荷，提高随后施加的玻璃膜的粘附性，并使得更均匀的磁特性 钢铁。
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公开(公告)号：US4952287A
公开(公告)日：1990-08-28
申请号：US370169
申请日：1989-06-21
CPC分类号： C25D3/22
摘要： Electrolytic galvanizing process in which steel strip to be zinc coated is passed continuously through an acid electrolyte solution containing zinc ions and is used as a cathode, while the electrolyte solution is made to flow in the space between the cathode and the anode, in a cell having flat parallel electrodes. The plating current density and the fluid dynamic conditions of the electrolyte are related by the equationI=K C Re.sup.nin which I is 15-300 A/dm.sup.2, K is 0.01-0.0001 A/dm.sup.2 l/g, C is 40-80 grams of zinc per liter of electrolyte solution, Re is the Reynolds number between 1,000 and 200,000, and n is 0.55-0.85. Preferred values are K=0.001, C=80 g/l and n is 0.7.
摘要翻译： 电镀锌工艺，其中镀锌钢带通过含锌离子的酸性电解液连续地通过，并且当电解液在阴极和阳极之间的空间中被用作阴极时，在电池中 具有平行的平行电极。 电解液的电镀电流密度和流体动力学条件与式I = KC Ren相关，其中I为15-300A / dm2，K为0.01-0.0001A / dm2l / g，C为40-80克 的锌每升电解质溶液，Re是雷诺数在1,000和200,000之间，n是0.55-0.85。 优选的值为K = 0.001，C = 80g / l，n为0.7。
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公开(公告)号：US4213839A
公开(公告)日：1980-07-22
申请号：US28925
申请日：1979-04-09
申请人： Nazzareno Azzerri , Roberto Bruno , Massimo Memmi
发明人： Nazzareno Azzerri , Roberto Bruno , Massimo Memmi
CPC分类号： C25F1/06 , C25D13/20 , C25F1/00 , Y10T428/31 , Y10T428/8305
摘要： The adhesion of paint to steel sheets is improved by pretreating the steel sheets, prior to conventional annealing, surface finishing, oiling, degreasing, phosphating and painting operations, by connecting the steel sheet alternately as cathode and anode in an electrolytic cell containing a bath of 0.5 M-2 M sodium sulphate aqueous solution. The operating temperature is 20.degree.-100.degree. C., the pH is 6-8, the current density is 1 to 50 A/dm.sup.2, and the treatment time is 0.1-30 seconds, preferably 0.5-20 seconds, and most preferably about 5 seconds as cathode followed by about 5 seconds as anode.
摘要翻译： 通过在常规退火，表面精加工，上油，脱脂，磷化和喷涂操作之前预处理钢板，通过将钢板交替地作为阴极和阳极连接到包含浴槽的电解槽中，来改善涂料对钢板的粘合性 0.5 M-2 M硫酸钠水溶液。 工作温度为20°-100℃，pH为6-8，电流密度为1〜50A / dm2，处理时间为0.1-30秒，优选为0.5〜20秒，最优选约为20〜 阴极5秒，阳极约5秒。
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4.发明授权
公开(公告)号：US4127450A
公开(公告)日：1978-11-28
申请号：US726788
申请日：1976-09-27
申请人： Nazzareno Azzerri , Alberto Tamba
发明人： Nazzareno Azzerri , Alberto Tamba
CPC分类号： C25F1/00
摘要： The susceptibility of steel to electroplating is improved, by an electrolytic pretreatment of the steel part. The steel part is connected alternately as cathode and anode in an electrolytic cell containing an electrolytic bath which is an aqueous solution of sodium sulphate of a concentration from 0.5 M to 2.5 M and a pH of 6 to 8, at a temperature of 20.degree. to 100.degree. C. and a direct current density of 1 to 60 A/dm.sup.2.
摘要翻译： 通过钢部件的电解预处理，提高了钢对电镀的敏感性。 该钢部件作为阴极和阳极交替地连接在电解槽中，该电解池含有电解槽，电解槽是浓度为0.5M至2.5M，pH为6至8的硫酸钠水溶液，温度为20°至 100℃，直流密度1〜60A / dm 2。
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公开(公告)号：US4886712A
公开(公告)日：1989-12-12
申请号：US66934
申请日：1987-06-26
申请人： Nazzareno Azzerri , Leonardo Giorgi
发明人： Nazzareno Azzerri , Leonardo Giorgi
CPC分类号： C25D5/48 , C25D11/34 , C25D11/38 , Y10T428/12611 , Y10T428/12847 , Y10T428/12944 , Y10T428/12972
摘要： The suitability of the kind of steel strip known as black plate, optionally coated with small quantities of tin or nickel for food packaging, is greating improved by ensuring the presence of a layer of P-type semiconducting oxide on the surface thereof.The quality of the plate is yet further improved by coating the oxide surface with a thin chromic passivation layer that also contains a P-type semiconducting oxide.
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公开(公告)号：US4236977A
公开(公告)日：1980-12-02
申请号：US936931
申请日：1978-08-25
IPC分类号： C25D5/36
CPC分类号： C25D5/36
摘要： A method according to the invention is based on the combination of the activation treatment of a steel object in an aqueous neutral solution with the use of auxiliary electrodes, dipped in the same activating solution, which causes the steel to be pre-plated.
摘要翻译： 根据本发明的方法是基于将中性溶液中的钢物体与使用辅助电极进行活化处理的组合，浸入相同的活化溶液中，这导致钢被预镀。
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公开(公告)号：US5021104A
公开(公告)日：1991-06-04
申请号：US377791
申请日：1989-07-11
申请人： Nazzareno Azzerri , Leonardo Giorgi
发明人： Nazzareno Azzerri , Leonardo Giorgi
CPC分类号： C25D5/48 , C25D11/34 , C25D11/38 , Y10T428/12611 , Y10T428/12847 , Y10T428/12944 , Y10T428/12972
摘要： The suitability of the kind of steel strip known as black plate, optionally coated with small quantities of tin or nickel for food packaging, is greatly improved by ensuring the presence of a layer of P-type semiconducting oxide on the surface thereof. The ratio of the number of Type-P charge bearing atoms (NA) of that semiconducting oxide to the numbr of Type-N charge bearing atoms (ND) is greater than 1.2. The quality of the plate is yet further improved by coating the oxide surface with a thin chromic passivation layer that also contains a P-type semiconducting oxide.
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