Copper and nickel adherently electroplated on titanium alloy

Anodic treatment of titanium alloy enables electroplating of tightly adherent coatings of copper and nickel on the alloy. The alloy is treated in a solution of hydrofluoric and acetic acids, followed by the electroplating process

Electroplating eliminates gas leakage in brazed areas

Electroplating method seals brazed or welded joints against gas leakage under high pressure. Any conventional electroplating process with many different metal anodes can be used, as well as the build up of layers of different metals to any required thickness

Fixture for multiple-FCC chemical stripping and plating

For chemical stripping, lead tape applied near ends to be stripped protects insulation. Taped ends are submerged half way in stripping solution. For electroplating, both ends of FCC are stripped - top ends for electric contact, others for submersion in electroplating solution

Deemo: a new technology for the fabrication of microstructures

The recent innovations in dry etching make it a promising technology for the fabrications of micromoulds. The high aspect ratios, directional freedom, low roughness, high etch rates and high selectivity with respect to the mask material allow a versatile fabrication process of micromoulds for subsequent electroplating and embossing, as is demonstrated with the DEEMO process. DEEMO is an English acronym and stands for Dry Etching, Electroplating and Moulding

Preparation of NiO catalyst on FeCrAI substrate using various techniques at higher oxidation process

The cheap nickel oxide (NiO) is a potential catalyst candidate to replace the expensive available platinum group metals (PGM). However, the current methods to adhere the NiO powder on the metallic substrates are complicated. Therefore, this work explored the development of nickel oxide using nickel (Ni) on FeCrAl substrate through the combination of nickel electroplating and oxidation process for catalytic converter application. The approach was started with assessment of various nickel electroplating process based on the weight gain during oxidation. Then, the next experiment used the best process in which the pre-treatment using the solution of SiC and/or Al2O3 in methanol. The specimens then were carried out to short term oxidation process using thermo gravimetric analysis (TGA) at 1000 o C. Meanwhile, the long term oxidation process was conducted using an automatic furnace at 900, 1000 and 1100 o C. The atomic force microscopy (AFM) was used for surface analysis in nanometer range scale. Meanwhile, roughness test was used for roughness measurement analysis in micrometer range scale. The scanning electron microscope (SEM) attached with energy dispersive X-ray (EDX) were used for surface and cross section morphology analysis. The specimen of FeCrAl treated using ultrasonic prior to nickel electroplating showed the lowest weight gain during oxidation. The surface area of specimens increased after ultrasonic treatment. The electroplating process improved the high temperature oxidation resistance. In short term oxidation process indicated that the ultrasonic with SiC provided the lower parabolic rate constant (kp) and the Al2O3 and NiO layers were also occurred. The Ni layer was totally disappeared and converted to NiO layer on FeCrAl surface after long term oxidation process. From this work, the ultrasonic treatment prior to nickel electroplating was the best method to adhere NiO on FeCrAl substrate

Literature review on pickling inhibitors and cadmium electroplating processes

Because introduction of hydrogen during bright-cadmium electroplating of high strength steels causes hydrogen-stress cracking, a program was undertaken to evaluate various processes and materials. Report describes effectiveness of inhibitors for reducing hydrogen absorption by steels

Product development of a nickel-plated fire fighting helmet : a thesis presented in fulfilment of the requirements for the degree of MTech in Product Development at Massey University, Palmerston North, New Zealand

This thesis describes the development of a fire fighting helmet for the French market for manufacture by Pacific Helmets (NZ) Ltd, including the major technical development of a process for electroplating unsaturated polyester resin (UP resin). The need for this study arose from an opportunity identified by PHNZ to enter into the French fire fighting market. The major technical problem was that the helmet shell must be manufactured from nickel-plated UP resin. However, no current technology existed for plating UP resin with a suitably high quality or durability that would withstand the user conditions of a fire fighting helmet. Literature from existing technologies for plating of similar materials, and attempts at plating UP resin for decorative purposes were reviewed, along with advice from Industry experts in order to understand plastics plating technology and to develop potential methods for plating UP resin for this application. An iterative hypothesis generation and trial process was used to test potential plating methods in a laboratory on samples of UP resin. A successful methodology was identified. Following this an electroplating pilot plant was constructed and the successful plating methods were used to plate full UP resin helmet shells. Works-like prototypes were constructed using helmet shells that had been successfully applied with a quality and durable electroplated coating suitable for fire fighting helmets. The prototypes were successfully tested against the required product safety standards. The project concluded with the successful development of a works-like prototype of a Nickel-plated fire-fighting helmet for the French market that met all consumer and technical requirements identified. Going forward, Pacific Helmets (NZ) Ltd plan to showcase the product at the next annual International Fire-fighting trade show. Plans are currently underway to expand the production facility in Wanganui in order to accommodate the additional helmet production