公开(公告)号：US5075178A

公开(公告)日：1991-12-24

申请号：US638288

申请日：1990-01-07

申请人： Juergen Schmidt ,  Thomas Furche ,  Roland Erdmann ,  Marion Reichert ,  Bayer Ullrich ,  Peter Kurze ,  Thomas Schwarz ,  Joachim Schreckenbach ,  Hans-Juergen Kletke ,  Andreas Hofmann ,  Martin Heppner ,  Anja Hasse ,  Dorith Schmidt ,  Annette Klaus

发明人： Juergen Schmidt ,  Thomas Furche ,  Roland Erdmann ,  Marion Reichert ,  Bayer Ullrich ,  Peter Kurze ,  Thomas Schwarz ,  Joachim Schreckenbach ,  Hans-Juergen Kletke ,  Andreas Hofmann ,  Martin Heppner ,  Anja Hasse ,  Dorith Schmidt ,  Annette Klaus

IPC分类号： C25D11/02 ,  C25D11/26

CPC分类号： C25D11/26 ,  C25D11/026 ,  Y10T428/12806 ,  Y10T428/12812

摘要： The invention relates to a cyanide-free electrolyte being harmless to the environment and to health which makes feasible the production of black surface layers on light metals or on alloys of the latter, preferably titanium, remaining deeply-black and adhesive even after extreme changes in the ambient temperature and having nearly equal values of the optical absorptivity of radiation and of the thermal emission capability (the .alpha./.epsilon.-ratio is about 0.95) by means of the anodic oxidation by spark discharge (ANDF-method). These layers are absolutely X-amorphous and show, hence, an ideal optically isotropic behavior regarding the reflection of radiation. Due to their minmum evolution of gases they offer a high thermovacuum stability. The electrolyte consists of an ammoniacal solution of K.sub.2 H.sub.2 PO.sub.4 potassium dihydrogenphosphate and K.sub.2 CrO.sub.4 potassium chromate. The homogeneity of the optically black layers is ensured by not using fluoride ions and employing acetate ions. Such layers comprise titanium, chromium and copper in ratios of Cr:Ti=1: (1.9 to 2.2) and Cr:Cu=1:(0.8 to 1.3).

公开(公告)号：US5035781A

公开(公告)日：1991-07-30

申请号：US528664

申请日：1990-05-24

申请人： Jurgen Schmidt ,  Thomas Furche ,  Roland Erdmann ,  Marion Reichert ,  Ullrich Bayer ,  Peter Kurze ,  Thomas Schwarz ,  Joachim Schreckenbach ,  Hans-Jurgen Kletke ,  Andreas Hoffmann ,  Martin Heppner ,  Anja Hasse ,  Dorith Schmidt ,  Annette Klaus

发明人： Jurgen Schmidt ,  Thomas Furche ,  Roland Erdmann ,  Marion Reichert ,  Ullrich Bayer ,  Peter Kurze ,  Thomas Schwarz ,  Joachim Schreckenbach ,  Hans-Jurgen Kletke ,  Andreas Hoffmann ,  Martin Heppner ,  Anja Hasse ,  Dorith Schmidt ,  Annette Klaus

IPC分类号： C25D11/02 ,  C25D11/26

CPC分类号： C25D11/26 ,  C25D11/026 ,  Y10T428/12806 ,  Y10T428/12812

摘要： The invention relates to a cyanide-free electrolyte being harmless to the environment and to health which makes feasible the production of black surface layers on light metals or on alloys of the latter, preferably titanium, remaining deeply-black and adhesive even after extreme changes in the ambient temperature and having nearly equal values of the optical absorptivity of radiation and of the thermal emission capability (the .alpha./.epsilon.-ratio is about 0.95) by means of the anodic oxidation by spark discharge (ANOF-method). These layers are absolutely X-amorphous and show, hence, an ideal optically isotropic behavior regarding the reflection of radiation. Due to their minimum evolution of gases they offer a high thermovacuum stability. The electrolyte consists of an ammoniacal solution of K.sub.2 H.sub.2 PO.sub.4 potssium dihydrogenphosphate and K.sub.2 CRO.sub.4 potassium chromate. The homogeneity of the optically black layers is ensured by not using fluoride ions and employing acetate ions. Such layers comprise titanium, chromium and copper following ratios of CR:Ti=1:(1.9 to 2.2) and CR:Cu=1:(0.8 to 1.3).

摘要翻译： 本发明涉及一种对无环境和健康无害的电解质，这使得在轻金属或后者的合金（优选钛）上生产黑色表面层是可行的，即使在极端变化之后仍然保持深黑色和粘合 通过火花放电的阳极氧化（ANOF方法），具有几乎相同的辐射光吸收率和热发射能力（α/ε-比率约为0.95）的值。 这些层是绝对X非晶体的，因此显示关于辐射反射的理想光学各向同性行为。 由于它们气体的最小演变，它们提供了高的热真空稳定性。 电解质由K2H2PO4磷酸二氢钾和K2CRO4铬酸钾的氨溶液组成。 通过不使用氟离子并使用乙酸根离子来确保光学黑层的均匀性。 CR：Ti = 1：（1.9〜2.2）和CR:Cu = 1：（0.8〜1.3）的比例，这些层包含钛，铬和铜。

公开(公告)号：US4869789A

公开(公告)日：1989-09-26

申请号：US151363

申请日：1988-02-02

申请人： Peter Kurze ,  Waldemar Krysmann ,  Maria Berger ,  Klaus Rabending ,  Joachim Schreckenbach ,  Thomas Schwarz ,  Karl-Heinz Hartmann

发明人： Peter Kurze ,  Waldemar Krysmann ,  Maria Berger ,  Klaus Rabending ,  Joachim Schreckenbach ,  Thomas Schwarz ,  Karl-Heinz Hartmann

IPC分类号： C25D11/02

CPC分类号： C25D11/024 ,  C25D11/026

摘要： The process for producing decorative coatings on metals is primarily used in the jewelry industry, in handicrafts, and in device construction according to the invention, matte, true-to-form decorative coatings with a homogenous thickness of 3 .mu.m to 30 .mu.m are provided means of an electrochemical and plasmachemical reaction using a pulse operation in aqueous electrolytes at voltage peaks of 250 V to 750 V, pulse times of 20 .mu.s to 2 ms, pulse frequencies of 35 Hz to 300 Hz, pulse currents from 20 A to 120 A, electrolyte temperatures between 318 K and 360 K, and average current densities from 0.1 A cm.sup.-2 to 1 A cm.sup.-2.

摘要翻译： 金属装饰涂料的生产工艺主要用于珠宝工业，工艺品和根据本发明的装置结构中，具有均匀厚度为3μm至30μm的无光泽的真实成型装饰涂料是 提供了在电压峰值为250 V至750 V，脉冲时间为20 s至2 ms，脉冲频率为35 Hz至300 Hz，脉冲电流为20 A至20 Hz的电解质水溶液中进行电化学和等离子体化学反应的手段 120A，电解质温度在318K和360K之间，平均电流密度为0.1Acm-2至1Acm -1。