摘要:
Articles prepared by additive manufacturing of preforms that are coated by electrodeposition of nanolaminate materials, and methods of their production are described.
摘要:
This invention provides an electroplated product with a precious metal finishing layer that has an improved corrosion and abrasion resistance. The electroplated product comprises two electroplated copper alloy layers having a different copper concentration (e.g. white bronze and yellow bronze). The electroplated product is especially suitable for use in jewelry, fashion, leather, watch, eyewear, trinkets and/or lock industry. Another advantage of the electroplated product is that the use of allergenic nickel or expensive palladium intermediate layers against copper migration can be dispensed with. This means that the electroplated product can be non-allergenic (nickel-free) and be provided in a more economical and environment-friendly manner. A method for the production of the inventive electroplated product is presented. Furthermore, the use of the inventive electroplated product in the jewelry, fashion, leather, watch, eyewear, trinkets and/or lock industry is suggested.
摘要:
The present invention relates to a process for corrosion protection of an iron-containing substrate wherein a first zinc-nickel alloy layer, a second zinc-nickel alloy layer and a black passivate layer are deposited onto the substrate. The nickel concentration in the second zinc-nickel alloy layer is higher than the nickel concentration in the first zinc-nickel alloy layer. The substrate surface obtained is homogenously black with an appealing decorative appearance and both resistance against white rust and red rust are improved.
摘要:
The invention is related to a method for producing a coating (13) comprising a metallic matrix (17) on a substrate (11) by electrochemical deposition. There are for example graphite particles (14) embedded into the metallic matrix (17) of the coating (13) which leads to the creation of macro-pores (15) in the coating. The coating (13) can be completed by oxide particles (16) which are incorporated and fixed in the macro-pores (15) whereby the surface of the oxide particles (16) serves for catalytic purposes. Additionally, a surface layer (18) which also extends into the macro-pores (15) and therefore provide a catalytic surface with a great surface area. This surface layer can be activated by a leaching process for further raising its surface area.
摘要:
Disclosed herein is a method of electroforming a needle cannula (100) for an injection device, wherein the electroforming method is performed in an electroforming system (1) comprising a cathode (10), an anode (60) and an electrolyte (50) with dissolved metal ions, wherein the method comprises providing a permanent mandrel (10), wherein the mandrel is configured to constitute the cathode. The mandrel (10) comprises a forming portion (20) having a forming surface (21, 22, 23, 24, 25, 26) adapted to form an inner surface of the needle cannula (100), wherein the forming portion (20) comprises a cylindrical axis (A), a longitudinal extension, a first proximal end (16) and a second distal end (17). The method further comprises electrodepositing a metal or metal alloy on the forming surface (21, 22, 23, 24, 25, 26) of the mandrel, where the electrodeposited metal or metal alloy is corresponding to the metal ions dissolved in the electrolyte (50), and whereby the electrodeposited metal or metal alloy is forming a needle cannula (100) on the mandrel (10), and separating the mandrel (10) from the formed needle cannula (100) by moving the mandrel (10) and the electroformed needle cannula relative to each other. Further disclosed is a method of producing different cannula features as composite structures (301, 302, 303, 304, 305) and interlock structures (105, 106, 107, 152, 153).
摘要:
There is provided a surface-treated steel sheet (1) comprising: a tin-plated steel sheet (10) obtained by tin-plating a steel sheet (11); a phosphate compound layer (20) containing tin phosphate formed on the tin-plated steel sheet (10); and an aluminum-oxygen compound layer (30) formed on the phosphate compound layer (20), a main constituent of the aluminum-oxygen compound layer being an aluminum-oxygen compound.