Stripping of electroplated nickel-iron alloys from ferrous substrates
    1.
    发明授权
    Stripping of electroplated nickel-iron alloys from ferrous substrates 失效
    从铁质基底剥离电镀镍铁合金

    公开(公告)号:US4052254A

    公开(公告)日:1977-10-04

    申请号:US654403

    申请日:1976-02-02

    IPC分类号: C23F1/44 C23F1/00

    CPC分类号: C23F1/44

    摘要: A composition and process for selectively removing nickel-iron alloys from a metal substrate which comprises contacting said metal surface with an aqueous bath containing:A. at least one nitro substituted organic compound containing at least one solubilizing group;B. at least one organic amine or polyamine or substituted amine or polyamine;C. at least one aliphatic carboxylic acid or salt thereof, or a compound which will yield said carboxylic acid or salt thereof in solution, further characterized in that said aliphatic carboxylic acid or salt thereof additionally contains at least one substituent group selected from --NH.sub.2 or quaternary amine salts thereof, --OH, or --SH; andD. at least one phosphorus oxo acid or organic phosphorus oxo acid or salts thereof or alkyl phosphonate substituted amines.By nickel-iron alloy deposit is meant a deposit containing from about 5 to 90 percent by weight iron with that portion which is not iron being primarily nickel or nickel and cobalt. Although small amounts of impurities such as copper, zinc, cadmium, lead, etc. may also be present, the major constituents of the alloy are nickel and iron.

    Brass plating
    2.
    发明授权
    Brass plating 失效
    黄铜电镀

    公开(公告)号:US4042470A

    公开(公告)日:1977-08-16

    申请号:US729024

    申请日:1976-10-04

    IPC分类号: C25D3/58 C25D3/56

    CPC分类号: C25D3/58

    摘要: This invention relates to a composition and process for electrodepositing semi-bright to bright brass from an aqueous alkaline cyanide electroplating solution containing at least one copper compound providing copper ions, at least one zinc compound providing zinc ions, and as a cooperating additive 0.1 to 10 grams per liter of at least one compound having the following generalized structural formula: ##STR1## where R.sub.1 and R.sub.2 are separately hydrogen, an alkyl group such as methyl, ethyl, isopropyl, etc., or a hydroxy alkyl group such as hydroxy methyl, hydroxy ethyl, etc. and R.sub.3 is hydrogen or a straight or branched chain alkyl sulfonic or carboxylic acid of from one to ten carbon atoms, or salts thereof, or a straight or branched chain hydroxy alkyl group of from one to five carbon atoms.

    摘要翻译: 本发明涉及一种用于从含有至少一种提供铜离子的铜化合物,至少一种提供锌离子的锌化合物和作为配合添加剂的至少一种碱性氰化物电镀溶液的电解沉积半亮亮黄铜的组合物和方法。 克/升的至少一种具有以下通式结构式的化合物:其中R 1和R 2分别是氢,烷基如甲基,乙基,异丙基等,或羟基烷基如羟基甲基, 羟基乙基等,R3是氢或1〜10个碳原子的直链或支链烷基磺酸或羧酸,或其盐,或1〜5个碳原子的直链或支链羟基烷基。

    Selected stripping of nickel-iron alloys from ferrous substrates
    3.
    发明授权
    Selected stripping of nickel-iron alloys from ferrous substrates 失效
    选择从铁基底层剥离镍铁合金

    公开(公告)号:US4042451A

    公开(公告)日:1977-08-16

    申请号:US602140

    申请日:1975-08-05

    摘要: A composition and process for selectively removing nickel and nickel alloys with iron and/or cobalt from a surface of a metal substrate which comprises contacting said metal surface with an aqueous bath containing:A. at least one nitro substituted organic compound:B. at least one organic amine or polyamine or substituted amine or polyamine; andC. at least one phosphorus oxo acid or organic phosphorus oxo acid or salts thereof or alkyl phosphonate substituted amines.By nickel-iron alloy deposit is meant a deposit containing from about 5 to 90 percent by weight iron with that portion which is not iron being primarily nickel or nickel and cobalt. Although small amounts of impurities such as copper, zinc, cadmium, lead, etc. may also be present, the major constituents of the alloy are nickel and iron.

    摘要翻译: 一种用于从金属基材的表面选择性地除去镍和/或钴的镍和镍合金的组合物和方法,该组合物和方法包括使所述金属表面与含有

    Additive for improved electroplating process
    4.
    发明授权
    Additive for improved electroplating process 失效
    添加剂用于改进电镀工艺

    公开(公告)号:US4046647A

    公开(公告)日:1977-09-06

    申请号:US697033

    申请日:1976-06-17

    CPC分类号: C25D3/14

    摘要: This invention relates to a process and composition for the preparation of an electrodeposit which contains; at least one metal selected from the group consisting of nickel and cobalt or; binary or ternary alloys of the metals selected from nickel, iron, and cobalt; which comprises passing current from an anode to a cathode through an aqueous acidic electroplating solution containing at least one member selected from nickel compounds and cobalt compounds and which may additionally contain iron compounds providing nickel, cobalt and iron ions for electrodepositing nickel, cobalt, nickel-cobalt alloys, nickel-iron alloys, cobalt-iron alloys or nickel-iron-cobalt alloys; the improvement comprising the presence of 5.times.10.sup.-6 moles per liter to 0.5 moles per liter of a .beta.-substituted, .gamma.-substituted, or .beta.,.gamma.-disubstituted sulfone exhibiting the following generalized structural formula: ##STR1## wherein R represents alkyl, alkenyl, alkynyl, aryl, alkaryl, aralkyl, or the group ##STR2## R' represents hydrogen, R, or the group ##STR3## R" represents --OH, --SO.sub.3 H or salt thereof, or --COOH or salts or esters thereof;a, b, c, d, e, are independently integers 1 or 2; except when R" is --COOH "a" may be zero;For a time period sufficient to form a metal electroplate upon said cathode.

    摘要翻译: 本发明涉及一种用于制备电沉积物的方法和组合物,其包含: 至少一种选自镍和钴的金属;或 选自镍,铁和钴的金属的二元或三元合金; 其包括将电流从阳极通过含有选自镍化合物和钴化合物中的至少一种的酸性电镀溶液,并且还可以含有提供镍,钴和铁离子的铁化合物,用于电沉积镍,钴,镍 - 钴合金,镍 - 铁合金,钴 - 铁合金或镍 - 铁 - 钴合金; 该改进包括存在5×10 -6摩尔/升至0.5摩尔/升β-取代,γ-取代或β,γ-二取代的砜,其表现出以下通用结构式:其中R表示烷基,烯基 ,炔基,芳基,烷芳基,芳烷基或基团R'表示氢,R或基团R“表示-OH,-SO 3 H或其盐,或-COOH或其盐或酯; A,B,C,D,E,独立整数1或2; 除非R“是-COOH”a“可以为零; 对于形成一个金属电极的时间段,可以使用这样的阴极。

    Electroplating of nickel, cobalt, mutual alloys thereof or ternary
alloys thereof with iron
    6.
    发明授权
    Electroplating of nickel, cobalt, mutual alloys thereof or ternary alloys thereof with iron 失效
    镍,钴,相互合金或其三元合金与铁的电镀

    公开(公告)号:US4069112A

    公开(公告)日:1978-01-17

    申请号:US729074

    申请日:1976-10-04

    IPC分类号: C25D3/14 C25D3/56 C25D3/12

    CPC分类号: C25D3/562 C25D3/14

    摘要: This invention relates to a process and composition for the preparation of an electro-deposit which contains; at least one metal selected from the group consisting of nickel and cobalt or; binary or ternary alloys of the metals selected from nickel, iron, and cobalt; which comprises passing current from an anode to a cathode through an aqueous acidic electroplating solution containing at least one member selected from nickel compounds and cobalt compounds and which may additionally contain iron compounds providing nickel, cobalt and iron ions for electrodepositing nickel, cobalt, nickel-cobalt alloys, nickel-iron alloys, cobalt-iron alloys or nickel-iron-cobalt alloys; the improvement comprising the presence of 5 .times. 10.sup.-6 moles per liter to 0.5 mole per liter of an unsaturated cyclosulfone exhibiting the following generalized structural formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are independently hydrogen, lower alkyl, or hydroxyl;For a time period sufficient to form a metal electroplate upon said cathode.

    摘要翻译: 本发明涉及一种用于制备电沉积物的方法和组合物,其包含: 至少一种选自镍和钴的金属;或 选自镍,铁和钴的金属的二元或三元合金; 其包括将电流从阳极通过含有选自镍化合物和钴化合物中的至少一种的酸性电镀溶液,并且还可以含有提供镍,钴和铁离子的铁化合物,用于电沉积镍,钴,镍 - 钴合金,镍 - 铁合金,钴 - 铁合金或镍 - 铁 - 钴合金; 该改进包括存在5×10 -6摩尔/升至0.5摩尔/升不饱和环砜,其表现出以下通用结构式:其中R 1,R 2,R 3和R 4独立地为氢,低级烷基或羟基 ; 对于形成一个金属电极的时间段,可以使用这样的阴极。

    Electroplating nickel, cobalt, nickel-cobalt alloys and binary or
ternary alloys of nickel, cobalt and iron
    7.
    发明授权
    Electroplating nickel, cobalt, nickel-cobalt alloys and binary or ternary alloys of nickel, cobalt and iron 失效
    电镀镍,钴,镍钴合金和镍,​​钴和铁的二元或三元合金

    公开(公告)号:US4036709A

    公开(公告)日:1977-07-19

    申请号:US741710

    申请日:1976-11-15

    IPC分类号: C25D3/14 C25D3/56 C25D3/12

    CPC分类号: C25D3/562 C25D3/14

    摘要: This invention relates to a process and composition for the preparation of an electrodeposit which contains; at least one metal selected from the group consisting of nickel and cobalt or; binary or ternary alloys of the metals selected from nickel, iron, and cobalt; which comprises passing current from an anode to a cathode through an aqueous acidic electroplating solution containing at least one member selected from nickel compounds and cobalt compounds and which may additionally contain iron compounds providing nickel, cobalt and iron ions for electrodepositing nickel, cobalt, nickel-cobalt alloys, nickel-iron alloys, cobalt-iron alloys or nickel-iron-cobalt alloys and containing an effective amount of at least one additive; the improvement comprising the presence of 10 micromoles per liter to 2000 micromoles per liter of an organic disulfide compound or salt thereof having the formula:R.sub.1 --S--S--R.sub.2wherein R.sub.1 and R.sub.2 are independently selected from ##STR1## where n is an integer from 0 to 5, X.sub.1 is selected from --OH, --NH.sub.2, ##STR2## or salts thereof and X.sub.2, X.sub.3 and X.sub.4 are independently selected from --H, --OH, --NH.sub.2, ##STR3## and ##STR4## or salts thereof, provided that X.sub.3 and X.sub.4 are not simultaneously hydrogen; for a time period sufficient to form a metal electroplate upon said cathode.

    摘要翻译: 本发明涉及一种用于制备电沉积物的方法和组合物,其包含: 至少一种选自镍和钴的金属;或 选自镍,铁和钴的金属的二元或三元合金; 其包括将电流从阳极通过含有选自镍化合物和钴化合物中的至少一种的酸性电镀溶液,并且还可以含有提供镍,钴和铁离子的铁化合物,用于电沉积镍,钴,镍 - 钴合金,镍 - 铁合金,钴 - 铁合金或镍 - 铁 - 钴合金,并含有有效量的至少一种添加剂; 该改进包括每升至10微摩尔/升至2000微摩尔/升的有机二硫化合物或其盐,其具有下式:

    Aqueous electroless nickel plating bath and process
    8.
    发明授权
    Aqueous electroless nickel plating bath and process 失效
    水性无电镀镍浴和工艺

    公开(公告)号:US4483711A

    公开(公告)日:1984-11-20

    申请号:US583759

    申请日:1984-03-05

    IPC分类号: C23C18/36 C23C3/02

    CPC分类号: C23C18/36

    摘要: An improved aqueous electroless nickel plating bath and process for chemically depositing nickel on a substrate comprising an aqueous solution containing nickel ions, hypophosphite ions, a complexing agent, preferably a buffering agent and a wetting agent, and a small but effective amount of a sulfonium betaine compound sufficient to control the rate of nickel deposition and the concentration of phosphorus in the nickel deposit, preferably, in further combination with supplemental organic and/or inorganic rate stabilizers. The invention further contemplates a process for rejuvenating an electroless nickel bath which has been rendered inoperative due to the presence of excessive concentrations of supplemental stabilizing agents by the addition of a controlled effective amount of a sulfonium betaine compound sufficient to restore the bath to an operative plating condition.

    摘要翻译: 一种改进的含水无电镀镍浴和用于在基材上化学沉积镍的方法,其包括含有镍离子,次磷酸根离子,络合剂,优选缓冲剂和润湿剂的水溶液,以及小但有效量的锍甜菜碱 足以控制镍沉积速率和镍沉积物中磷的浓度的化合物,优选与补充的有机和/或无机速率稳定剂进一步组合。 本发明进一步考虑了一种使无电镍浴恢复活力的方法,该方法由于存在过量浓度的补充稳定剂而使其不起作用,通过加入受控有效量的足以将浴恢复至操作电镀的锍铵盐化合物 条件。